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mutter/cogl/cogl-texture-2d.c

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cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
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/*
* Cogl
*
* An object oriented GL/GLES Abstraction/Utility Layer
*
* Copyright (C) 2009 Intel Corporation.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
Remove mentions of the FSF address Since using addresses that might change is something that finally the FSF acknowledge as a plausible scenario (after changing address twice), the license blurb in the source files should use the URI for getting the license in case the library did not come with it. Not that URIs cannot possibly change, but at least it's easier to set up a redirection at the same place. As a side note: this commit closes the oldes bug in Clutter's bug report tool. http://bugzilla.openedhand.com/show_bug.cgi?id=521
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
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*
* Authors:
* Neil Roberts <neil@linux.intel.com>
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "cogl.h"
#include "cogl-internal.h"
#include "cogl-util.h"
#include "cogl-texture-private.h"
#include "cogl-texture-2d-private.h"
#include "cogl-texture-driver.h"
cogl: rename cogl-context.h cogl-context-private.h Since we plan to add public cogl_context_* API we need to rename the current cogl-context.h which contains private member details.
2010-11-04 18:25:52 -04:00
#include "cogl-context-private.h"
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
#include "cogl-handle.h"
cogl: remove redundant _cogl_journal_flush prototype There was a redundant _cogl_journal_flush function prototype in cogl-primitives.h
2010-02-10 13:18:30 -05:00
#include "cogl-journal-private.h"
cogl: rename CoglMaterial -> CoglPipeline This applies an API naming change that's been deliberated over for a while now which is to rename CoglMaterial to CoglPipeline. For now the new pipeline API is marked as experimental and public headers continue to talk about materials not pipelines. The CoglMaterial API is now maintained in terms of the cogl_pipeline API internally. Currently this API is targeting Cogl 2.0 so we will have time to integrate it properly with other upcoming Cogl 2.0 work. The basic reasons for the rename are: - That the term "material" implies to many people that they are constrained to fragment processing; perhaps as some kind of high-level texture abstraction. - In Clutter they get exposed by ClutterTexture actors which may be re-inforcing this misconception. - When comparing how other frameworks use the term material, a material sometimes describes a multi-pass fragment processing technique which isn't the case in Cogl. - In code, "CoglPipeline" will hopefully be a much more self documenting summary of what these objects represent; a full GPU pipeline configuration including, for example, vertex processing, fragment processing and blending. - When considering the API documentation story, at some point we need a document introducing developers to how the "GPU pipeline" works so it should become intuitive that CoglPipeline maps back to that description of the GPU pipeline. - This is consistent in terminology and concept to OpenGL 4's new pipeline object which is a container for program objects. Note: The cogl-material.[ch] files have been renamed to cogl-material-compat.[ch] because otherwise git doesn't seem to treat the change as a moving the old cogl-material.c->cogl-pipeline.c and so we loose all our git-blame history.
2010-10-27 13:54:57 -04:00
#include "cogl-pipeline-opengl-private.h"
cogl-texture-2d: Add an internal wrapper around glCopyTexSubImage2D This adds a function called _cogl_texture_2d_copy_from_framebuffer which is a simple wrapper around glCopyTexSubImage2D. It is currently specific to the texture 2D backend.
2011-02-10 13:22:27 -05:00
#include "cogl-framebuffer-private.h"
Add _cogl_egl_texture_2d_new_from_image API This adds an internal texture_2d constructor that can wrap an EGLImage as a CoglTexture2D. The plan is to utilize this for texture-from-pixmap support with EGL as well as creating textures from wayland buffers.
2011-05-24 17:34:10 -04:00
#include "cogl-winsys-egl-private.h"
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
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#include <string.h>
#include <math.h>
Adds _cogl_wayland_texture_2d_new_from_buffer API This adds internal API to be able to wrap a wayland buffer as a CoglTexture2D. There is a --enable-wayland-egl-server option to decide if Cogl should support this feature and potentially any EGL based winsys could support this through the EGL_KHR_image_base and EGL_WL_bind_display extensions.
2011-05-24 20:37:56 -04:00
#ifdef COGL_HAS_WAYLAND_EGL_SERVER_SUPPORT
#include <wayland-server.h>
#endif
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
static void _cogl_texture_2d_free (CoglTexture2D *tex_2d);
Make CoglTexture2D public as experimental API This exposes a CoglTexture2D typedef and adds the following experimental API: cogl_is_texture_2d cogl_texture_2d_new_with_size cogl_texture_2d_new_from_data cogl_texture_2d_new_from_foreign Since this is experimental API you need to define COGL_ENABLE_EXPERIMENTAL_API before including cogl.h. Note: With these new entrypoints we now expect a CoglContext pointer to be passed in, instead of assuming there is a default context. The aim is that for Cogl 2.0 we won't have a default context so this is a step in that direction.
2011-05-16 19:05:54 -04:00
COGL_TEXTURE_DEFINE (Texture2D, texture_2d);
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
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static const CoglTextureVtable cogl_texture_2d_vtable;
typedef struct _CoglTexture2DManualRepeatData
{
CoglTexture2D *tex_2d;
meta-texture: This publicly exposes CoglMetaTexture CoglMetaTexture is an interface for dealing with high level textures that may be comprised of one or more low-level textures internally. The interface allows the development of primitive drawing APIs that can draw with high-level textures (such as atlas textures) even though the GPU doesn't natively understand these texture types. There is currently just one function that's part of this interface: cogl_meta_texture_foreach_in_region() which allows an application to resolve the internal, low-level textures of a high-level texture. cogl_rectangle() uses this API for example so that it can easily emulate the _REPEAT wrap mode for textures that the hardware can't natively handle repeating of. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-08 09:13:03 -04:00
CoglMetaTextureCallback callback;
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
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void *user_data;
} CoglTexture2DManualRepeatData;
static void
Split the wrap mode of _cogl_texture_set_wrap_mode into three GL supports setting different wrap modes for the s, t and r coordinates so we should design the backend interface to support that also. The r coordinate is not currently used by any of the backends but we might as well have it to make life easier if we ever add support for 3D textures. http://bugzilla.openedhand.com/show_bug.cgi?id=2063
2010-03-25 13:29:22 -04:00
_cogl_texture_2d_set_wrap_mode_parameters (CoglTexture *tex,
GLenum wrap_mode_s,
GLenum wrap_mode_t,
Rename the third texure coordinate from 'r' to 'p' Using 'r' to name the third component is problematic because that is commonly used to represent the red component of a vector representing a color. Under GLSL this is awkward because the texture swizzling for a vector uses a single letter for each component and the names for colors, textures and positions are synonymous. GLSL works around this by naming the components of the texture s, t, p and q. Cogl already effectively already exposes this naming because it exposes GLSL so it makes sense to use that naming consistently. Another alternative could be u, v and w. This is what Blender and Direct3D use. However the w component conflicts with the w component of a position vertex.
2010-07-12 12:01:32 -04:00
GLenum wrap_mode_p)
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
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{
CoglTexture2D *tex_2d = COGL_TEXTURE_2D (tex);
Use all core GL functions through indirect pointers cogl-ext-functions.h now contains definitions for all of the core GL and GLES functions that we would normally link to directly. All of the code has changed to access them through the cogl context pointer. The GE macro now takes an extra parameter to specify the context because the macro itself needs to make GL calls but various points in the Cogl source use different names for the context variable.
2011-07-06 16:51:00 -04:00
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
Split the wrap mode of _cogl_texture_set_wrap_mode into three GL supports setting different wrap modes for the s, t and r coordinates so we should design the backend interface to support that also. The r coordinate is not currently used by any of the backends but we might as well have it to make life easier if we ever add support for 3D textures. http://bugzilla.openedhand.com/show_bug.cgi?id=2063
2010-03-25 13:29:22 -04:00
/* Only set the wrap mode if it's different from the current value
to avoid too many GL calls. Texture 2D doesn't make use of the r
coordinate so we can ignore its wrap mode */
if (tex_2d->wrap_mode_s != wrap_mode_s ||
tex_2d->wrap_mode_t != wrap_mode_t)
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
{
material: Avoid redundant glBindTexture calls This adds a _cogl_bind_gl_texture_transient function that should be used instead of glBindTexture so we can have a consistent cache of the textures bound to each texture unit so we can avoid some redundant binding.
2010-04-26 05:01:43 -04:00
_cogl_bind_gl_texture_transient (GL_TEXTURE_2D,
tex_2d->gl_texture,
Support foreign textures in the texture-2d and rectangle backends This adds two new internal functions to create a foreign texture for the texture 2d and rectangle backends. cogl_texture_new_from_foreign will now use one of these backends directly if there is no waste instead of always using the sliced texture backend.
2010-10-04 10:27:38 -04:00
tex_2d->is_foreign);
Use all core GL functions through indirect pointers cogl-ext-functions.h now contains definitions for all of the core GL and GLES functions that we would normally link to directly. All of the code has changed to access them through the cogl context pointer. The GE macro now takes an extra parameter to specify the context because the macro itself needs to make GL calls but various points in the Cogl source use different names for the context variable.
2011-07-06 16:51:00 -04:00
GE( ctx, glTexParameteri (GL_TEXTURE_2D,
GL_TEXTURE_WRAP_S,
wrap_mode_s) );
GE( ctx, glTexParameteri (GL_TEXTURE_2D,
GL_TEXTURE_WRAP_T,
wrap_mode_t) );
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
Split the wrap mode of _cogl_texture_set_wrap_mode into three GL supports setting different wrap modes for the s, t and r coordinates so we should design the backend interface to support that also. The r coordinate is not currently used by any of the backends but we might as well have it to make life easier if we ever add support for 3D textures. http://bugzilla.openedhand.com/show_bug.cgi?id=2063
2010-03-25 13:29:22 -04:00
tex_2d->wrap_mode_s = wrap_mode_s;
tex_2d->wrap_mode_t = wrap_mode_t;
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
}
}
static void
_cogl_texture_2d_free (CoglTexture2D *tex_2d)
{
Support foreign textures in the texture-2d and rectangle backends This adds two new internal functions to create a foreign texture for the texture 2d and rectangle backends. cogl_texture_new_from_foreign will now use one of these backends directly if there is no waste instead of always using the sliced texture backend.
2010-10-04 10:27:38 -04:00
if (!tex_2d->is_foreign)
_cogl_delete_gl_texture (tex_2d->gl_texture);
material: Avoid redundant glBindTexture calls This adds a _cogl_bind_gl_texture_transient function that should be used instead of glBindTexture so we can have a consistent cache of the textures bound to each texture unit so we can avoid some redundant binding.
2010-04-26 05:01:43 -04:00
/* Chain up */
_cogl_texture_free (COGL_TEXTURE (tex_2d));
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
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}
static gboolean
_cogl_texture_2d_can_create (unsigned int width,
unsigned int height,
CoglPixelFormat internal_format)
{
GLenum gl_intformat;
GLenum gl_type;
Move the cogl texture driver functions to a vtable The texture driver functions are now accessed through a vtable pointed to by a struct in the CoglContext so that eventually it will be possible to compile both the GL and GLES texture drivers into a single binary and then select between them at runtime.
2011-07-07 07:48:24 -04:00
_COGL_GET_CONTEXT (ctx, FALSE);
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
/* If NPOT textures aren't supported then the size must be a power
of two */
features: Support more than 32 features! Currently features are represented as bits in a 32bit mask so we obviously can't have more than 32 features with that approach. The new approach is to use the COGL_FLAGS_ macros which lets us handle bitmasks without a size limit and we change the public api to accept individual feature enums instead of a mask. This way there is no limit on the number of features we can add to Cogl. Instead of using cogl_features_available() there is a new cogl_has_feature() function and for checking multiple features there is cogl_has_features() which takes a zero terminated vararg list of features. In addition to being able to check for individual features this also adds a way to query all the features currently available via cogl_foreach_feature() which will call a callback for each feature. Since the new functions take an explicit context pointer there is also no longer any ambiguity over when users can first start to query features. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-12 17:31:12 -04:00
if (!cogl_has_feature (ctx, COGL_FEATURE_ID_TEXTURE_NPOT) &&
Move _cogl_texture_2d_is_pot to cogl-util.h This function could be used in many places in Cogl so it makes sense to share it in cogl-util.h as _cogl_util_is_pot().
2010-07-01 06:07:03 -04:00
(!_cogl_util_is_pot (width) ||
!_cogl_util_is_pot (height)))
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
return FALSE;
Move the cogl texture driver functions to a vtable The texture driver functions are now accessed through a vtable pointed to by a struct in the CoglContext so that eventually it will be possible to compile both the GL and GLES texture drivers into a single binary and then select between them at runtime.
2011-07-07 07:48:24 -04:00
ctx->texture_driver->pixel_format_to_gl (internal_format,
&gl_intformat,
NULL,
&gl_type);
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
/* Check that the driver can create a texture with that size */
Move the cogl texture driver functions to a vtable The texture driver functions are now accessed through a vtable pointed to by a struct in the CoglContext so that eventually it will be possible to compile both the GL and GLES texture drivers into a single binary and then select between them at runtime.
2011-07-07 07:48:24 -04:00
if (!ctx->texture_driver->size_supported (GL_TEXTURE_2D,
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
gl_intformat,
gl_type,
width,
height))
return FALSE;
return TRUE;
}
static CoglTexture2D *
_cogl_texture_2d_create_base (unsigned int width,
unsigned int height,
CoglTextureFlags flags,
CoglPixelFormat internal_format)
{
CoglTexture2D *tex_2d = g_new (CoglTexture2D, 1);
CoglTexture *tex = COGL_TEXTURE (tex_2d);
journal: Support per-framebuffer journals Instead of having a single journal per context, we now have a CoglJournal object for each CoglFramebuffer. This means we now don't have to flush the journal when switching/pushing/popping between different framebuffers so for example a Clutter scene that involves some ClutterEffect actors that transiently redirect to an FBO can still be batched. This also allows us to track state in the journal that relates to the current frame of its associated framebuffer which we'll need for our optimization for using the CPU to handle reading a single pixel back from a framebuffer when we know the whole scene is currently comprised of simple rectangles in a journal.
2011-01-06 08:25:45 -05:00
_cogl_texture_init (tex, &cogl_texture_2d_vtable);
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
tex_2d->width = width;
tex_2d->height = height;
tex_2d->mipmaps_dirty = TRUE;
tex_2d->auto_mipmap = (flags & COGL_TEXTURE_NO_AUTO_MIPMAP) == 0;
cogl: new textures sould have GL_TEXTURE_MIN_FILTER set to GL_LINEAR The only way the user has to set the mipmap filters is through the material/layer API. This API defaults to GL_LINEAR/GL_LINEAR for the max and min filters. With the main use case of cogl being 2D interfaces, it makes sense do default to GL_LINEAR for the min filter. When creating new textures, we did not set any filter on them, using OpenGL defaults': GL_NEAREST_MIPMAP_LINEAR for the min filter and GL_LINEAR for the max filter. This will make the driver allocate memory for the mipmap tree, memory that will not be used in the nominal case (as the material API defaults to GL_LINEAR). This patch tries to ensure that the min filter is set to GL_LINEAR before any glTexImage*() call is done on the texture by setting the filter when generating new OpenGL handles.
2010-01-25 06:21:05 -05:00
/* We default to GL_LINEAR for both filters */
tex_2d->min_filter = GL_LINEAR;
tex_2d->mag_filter = GL_LINEAR;
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
/* Wrap mode not yet set */
Split the wrap mode of _cogl_texture_set_wrap_mode into three GL supports setting different wrap modes for the s, t and r coordinates so we should design the backend interface to support that also. The r coordinate is not currently used by any of the backends but we might as well have it to make life easier if we ever add support for 3D textures. http://bugzilla.openedhand.com/show_bug.cgi?id=2063
2010-03-25 13:29:22 -04:00
tex_2d->wrap_mode_s = GL_FALSE;
tex_2d->wrap_mode_t = GL_FALSE;
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
Support foreign textures in the texture-2d and rectangle backends This adds two new internal functions to create a foreign texture for the texture 2d and rectangle backends. cogl_texture_new_from_foreign will now use one of these backends directly if there is no waste instead of always using the sliced texture backend.
2010-10-04 10:27:38 -04:00
tex_2d->is_foreign = FALSE;
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
tex_2d->format = internal_format;
return tex_2d;
}
Make CoglTexture2D public as experimental API This exposes a CoglTexture2D typedef and adds the following experimental API: cogl_is_texture_2d cogl_texture_2d_new_with_size cogl_texture_2d_new_from_data cogl_texture_2d_new_from_foreign Since this is experimental API you need to define COGL_ENABLE_EXPERIMENTAL_API before including cogl.h. Note: With these new entrypoints we now expect a CoglContext pointer to be passed in, instead of assuming there is a default context. The aim is that for Cogl 2.0 we won't have a default context so this is a step in that direction.
2011-05-16 19:05:54 -04:00
CoglTexture2D *
cogl_texture_2d_new_with_size (CoglContext *ctx,
int width,
int height,
CoglPixelFormat internal_format,
GError **error)
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
{
CoglTexture2D *tex_2d;
GLenum gl_intformat;
GLenum gl_format;
GLenum gl_type;
/* Since no data, we need some internal format */
if (internal_format == COGL_PIXEL_FORMAT_ANY)
internal_format = COGL_PIXEL_FORMAT_RGBA_8888_PRE;
if (!_cogl_texture_2d_can_create (width, height, internal_format))
Make CoglTexture2D public as experimental API This exposes a CoglTexture2D typedef and adds the following experimental API: cogl_is_texture_2d cogl_texture_2d_new_with_size cogl_texture_2d_new_from_data cogl_texture_2d_new_from_foreign Since this is experimental API you need to define COGL_ENABLE_EXPERIMENTAL_API before including cogl.h. Note: With these new entrypoints we now expect a CoglContext pointer to be passed in, instead of assuming there is a default context. The aim is that for Cogl 2.0 we won't have a default context so this is a step in that direction.
2011-05-16 19:05:54 -04:00
{
g_set_error (error, COGL_TEXTURE_ERROR,
COGL_TEXTURE_ERROR_SIZE,
"Failed to create texture 2d due to size/format"
" constraints");
return NULL;
}
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
Move the cogl texture driver functions to a vtable The texture driver functions are now accessed through a vtable pointed to by a struct in the CoglContext so that eventually it will be possible to compile both the GL and GLES texture drivers into a single binary and then select between them at runtime.
2011-07-07 07:48:24 -04:00
internal_format = ctx->texture_driver->pixel_format_to_gl (internal_format,
&gl_intformat,
&gl_format,
&gl_type);
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
Make CoglTexture2D public as experimental API This exposes a CoglTexture2D typedef and adds the following experimental API: cogl_is_texture_2d cogl_texture_2d_new_with_size cogl_texture_2d_new_from_data cogl_texture_2d_new_from_foreign Since this is experimental API you need to define COGL_ENABLE_EXPERIMENTAL_API before including cogl.h. Note: With these new entrypoints we now expect a CoglContext pointer to be passed in, instead of assuming there is a default context. The aim is that for Cogl 2.0 we won't have a default context so this is a step in that direction.
2011-05-16 19:05:54 -04:00
tex_2d = _cogl_texture_2d_create_base (width, height, COGL_TEXTURE_NONE,
internal_format);
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
Move the cogl texture driver functions to a vtable The texture driver functions are now accessed through a vtable pointed to by a struct in the CoglContext so that eventually it will be possible to compile both the GL and GLES texture drivers into a single binary and then select between them at runtime.
2011-07-07 07:48:24 -04:00
ctx->texture_driver->gen (GL_TEXTURE_2D, 1, &tex_2d->gl_texture);
material: Avoid redundant glBindTexture calls This adds a _cogl_bind_gl_texture_transient function that should be used instead of glBindTexture so we can have a consistent cache of the textures bound to each texture unit so we can avoid some redundant binding.
2010-04-26 05:01:43 -04:00
_cogl_bind_gl_texture_transient (GL_TEXTURE_2D,
tex_2d->gl_texture,
Support foreign textures in the texture-2d and rectangle backends This adds two new internal functions to create a foreign texture for the texture 2d and rectangle backends. cogl_texture_new_from_foreign will now use one of these backends directly if there is no waste instead of always using the sliced texture backend.
2010-10-04 10:27:38 -04:00
tex_2d->is_foreign);
Use all core GL functions through indirect pointers cogl-ext-functions.h now contains definitions for all of the core GL and GLES functions that we would normally link to directly. All of the code has changed to access them through the cogl context pointer. The GE macro now takes an extra parameter to specify the context because the macro itself needs to make GL calls but various points in the Cogl source use different names for the context variable.
2011-07-06 16:51:00 -04:00
GE( ctx, glTexImage2D (GL_TEXTURE_2D, 0, gl_intformat,
width, height, 0, gl_format, gl_type, NULL) );
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
return _cogl_texture_2d_handle_new (tex_2d);
}
CoglHandle
cogl-bitmap: Encapsulate the CoglBitmap even internally The CoglBitmap struct is now only defined within cogl-bitmap.c so that all of its members can now only be accessed with accessor functions. To get to the data pointer for the bitmap image you must first call _cogl_bitmap_map and later call _cogl_bitmap_unmap. The map function takes the same arguments as cogl_pixel_array_map so that eventually we can make a bitmap optionally internally divert to a pixel array. There is a _cogl_bitmap_new_from_data function which constructs a new bitmap object and takes ownership of the data pointer. The function gets passed a destroy callback which gets called when the bitmap is freed. This is similar to how gdk_pixbuf_new_from_data works. Alternatively NULL can be passed for the destroy function which means that the caller will manage the life of the pointer (but must guarantee that it stays alive at least until the bitmap is freed). This mechanism is used instead of the old approach of creating a CoglBitmap struct on the stack and manually filling in the members. It could also later be used to create a CoglBitmap that owns a GdkPixbuf ref so that we don't necessarily have to copy the GdkPixbuf data when converting to a bitmap. There is also _cogl_bitmap_new_shared. This creates a bitmap using a reference to another CoglBitmap for the data. This is a bit of a hack but it is needed by the atlas texture backend which wants to divert the set_region virtual to another texture but it needs to override the format of the bitmap to ignore the premult flag.
2010-07-07 13:44:16 -04:00
_cogl_texture_2d_new_from_bitmap (CoglBitmap *bmp,
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
CoglTextureFlags flags,
Make CoglTexture2D public as experimental API This exposes a CoglTexture2D typedef and adds the following experimental API: cogl_is_texture_2d cogl_texture_2d_new_with_size cogl_texture_2d_new_from_data cogl_texture_2d_new_from_foreign Since this is experimental API you need to define COGL_ENABLE_EXPERIMENTAL_API before including cogl.h. Note: With these new entrypoints we now expect a CoglContext pointer to be passed in, instead of assuming there is a default context. The aim is that for Cogl 2.0 we won't have a default context so this is a step in that direction.
2011-05-16 19:05:54 -04:00
CoglPixelFormat internal_format,
GError **error)
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
{
cogl: Let GL do the format conversion when uploading texture data Cogl accepts a pixel format for both the data in memory and the internal format to be used for the texture. If they do not match then it would convert them using the CoglBitmap functions before uploading the data. However, GL also lets you specify both formats so it makes more sense to let GL do the conversion. The driver may need the texture in a specific format so it may end up being converted anyway. The cogl_texture_upload_data functions have been removed and replaced with a single function to prepare the bitmap. This will only do the premultiplication conversion because that is the only part that GL can't do directly.
2010-02-01 07:11:58 -05:00
CoglTexture2D *tex_2d;
cogl-bitmap: Encapsulate the CoglBitmap even internally The CoglBitmap struct is now only defined within cogl-bitmap.c so that all of its members can now only be accessed with accessor functions. To get to the data pointer for the bitmap image you must first call _cogl_bitmap_map and later call _cogl_bitmap_unmap. The map function takes the same arguments as cogl_pixel_array_map so that eventually we can make a bitmap optionally internally divert to a pixel array. There is a _cogl_bitmap_new_from_data function which constructs a new bitmap object and takes ownership of the data pointer. The function gets passed a destroy callback which gets called when the bitmap is freed. This is similar to how gdk_pixbuf_new_from_data works. Alternatively NULL can be passed for the destroy function which means that the caller will manage the life of the pointer (but must guarantee that it stays alive at least until the bitmap is freed). This mechanism is used instead of the old approach of creating a CoglBitmap struct on the stack and manually filling in the members. It could also later be used to create a CoglBitmap that owns a GdkPixbuf ref so that we don't necessarily have to copy the GdkPixbuf data when converting to a bitmap. There is also _cogl_bitmap_new_shared. This creates a bitmap using a reference to another CoglBitmap for the data. This is a bit of a hack but it is needed by the atlas texture backend which wants to divert the set_region virtual to another texture but it needs to override the format of the bitmap to ignore the premult flag.
2010-07-07 13:44:16 -04:00
CoglBitmap *dst_bmp;
cogl: Let GL do the format conversion when uploading texture data Cogl accepts a pixel format for both the data in memory and the internal format to be used for the texture. If they do not match then it would convert them using the CoglBitmap functions before uploading the data. However, GL also lets you specify both formats so it makes more sense to let GL do the conversion. The driver may need the texture in a specific format so it may end up being converted anyway. The cogl_texture_upload_data functions have been removed and replaced with a single function to prepare the bitmap. This will only do the premultiplication conversion because that is the only part that GL can't do directly.
2010-02-01 07:11:58 -05:00
GLenum gl_intformat;
GLenum gl_format;
GLenum gl_type;
cogl-bitmap: Encapsulate the CoglBitmap even internally The CoglBitmap struct is now only defined within cogl-bitmap.c so that all of its members can now only be accessed with accessor functions. To get to the data pointer for the bitmap image you must first call _cogl_bitmap_map and later call _cogl_bitmap_unmap. The map function takes the same arguments as cogl_pixel_array_map so that eventually we can make a bitmap optionally internally divert to a pixel array. There is a _cogl_bitmap_new_from_data function which constructs a new bitmap object and takes ownership of the data pointer. The function gets passed a destroy callback which gets called when the bitmap is freed. This is similar to how gdk_pixbuf_new_from_data works. Alternatively NULL can be passed for the destroy function which means that the caller will manage the life of the pointer (but must guarantee that it stays alive at least until the bitmap is freed). This mechanism is used instead of the old approach of creating a CoglBitmap struct on the stack and manually filling in the members. It could also later be used to create a CoglBitmap that owns a GdkPixbuf ref so that we don't necessarily have to copy the GdkPixbuf data when converting to a bitmap. There is also _cogl_bitmap_new_shared. This creates a bitmap using a reference to another CoglBitmap for the data. This is a bit of a hack but it is needed by the atlas texture backend which wants to divert the set_region virtual to another texture but it needs to override the format of the bitmap to ignore the premult flag.
2010-07-07 13:44:16 -04:00
guint8 *data;
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
Move the cogl texture driver functions to a vtable The texture driver functions are now accessed through a vtable pointed to by a struct in the CoglContext so that eventually it will be possible to compile both the GL and GLES texture drivers into a single binary and then select between them at runtime.
2011-07-07 07:48:24 -04:00
_COGL_GET_CONTEXT (ctx, COGL_INVALID_HANDLE);
Start to reduce dependence on glib Since we've had several developers from admirable projects say they would like to use Cogl but would really prefer not to pull in gobject,gmodule and glib as extra dependencies we are investigating if we can get to the point where glib is only an optional dependency. Actually we feel like we only make minimal use of glib anyway, so it may well be quite straightforward to achieve this. This adds a --disable-glib configure option that can be used to disable features that depend on glib. Actually --disable-glib doesn't strictly disable glib at this point because it's more helpful if cogl continues to build as we make incremental progress towards this. The first use of glib that this patch tackles is the use of g_return_val_if_fail and g_return_if_fail which have been replaced with equivalent _COGL_RETURN_VAL_IF_FAIL and _COGL_RETURN_IF_FAIL macros. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-13 17:34:30 -04:00
_COGL_RETURN_VAL_IF_FAIL (bmp != NULL, COGL_INVALID_HANDLE);
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
cogl-bitmap: Encapsulate the CoglBitmap even internally The CoglBitmap struct is now only defined within cogl-bitmap.c so that all of its members can now only be accessed with accessor functions. To get to the data pointer for the bitmap image you must first call _cogl_bitmap_map and later call _cogl_bitmap_unmap. The map function takes the same arguments as cogl_pixel_array_map so that eventually we can make a bitmap optionally internally divert to a pixel array. There is a _cogl_bitmap_new_from_data function which constructs a new bitmap object and takes ownership of the data pointer. The function gets passed a destroy callback which gets called when the bitmap is freed. This is similar to how gdk_pixbuf_new_from_data works. Alternatively NULL can be passed for the destroy function which means that the caller will manage the life of the pointer (but must guarantee that it stays alive at least until the bitmap is freed). This mechanism is used instead of the old approach of creating a CoglBitmap struct on the stack and manually filling in the members. It could also later be used to create a CoglBitmap that owns a GdkPixbuf ref so that we don't necessarily have to copy the GdkPixbuf data when converting to a bitmap. There is also _cogl_bitmap_new_shared. This creates a bitmap using a reference to another CoglBitmap for the data. This is a bit of a hack but it is needed by the atlas texture backend which wants to divert the set_region virtual to another texture but it needs to override the format of the bitmap to ignore the premult flag.
2010-07-07 13:44:16 -04:00
internal_format =
_cogl_texture_determine_internal_format (_cogl_bitmap_get_format (bmp),
internal_format);
cogl-texture-2d: Determine format before checking texture support When entering cogl_texture_2d_new_from_bitmap the internal format can be COGL_PIXEL_FORMAT_ANY. This was causing _cogl_texture_2d_can_create to use an invalid GL format type. Mesa apparently ignores this but it was causing errors when Cogl is compiled with debugging under NVidia. http://bugzilla.openedhand.com/show_bug.cgi?id=2026
2010-03-09 19:37:52 -05:00
cogl-bitmap: Encapsulate the CoglBitmap even internally The CoglBitmap struct is now only defined within cogl-bitmap.c so that all of its members can now only be accessed with accessor functions. To get to the data pointer for the bitmap image you must first call _cogl_bitmap_map and later call _cogl_bitmap_unmap. The map function takes the same arguments as cogl_pixel_array_map so that eventually we can make a bitmap optionally internally divert to a pixel array. There is a _cogl_bitmap_new_from_data function which constructs a new bitmap object and takes ownership of the data pointer. The function gets passed a destroy callback which gets called when the bitmap is freed. This is similar to how gdk_pixbuf_new_from_data works. Alternatively NULL can be passed for the destroy function which means that the caller will manage the life of the pointer (but must guarantee that it stays alive at least until the bitmap is freed). This mechanism is used instead of the old approach of creating a CoglBitmap struct on the stack and manually filling in the members. It could also later be used to create a CoglBitmap that owns a GdkPixbuf ref so that we don't necessarily have to copy the GdkPixbuf data when converting to a bitmap. There is also _cogl_bitmap_new_shared. This creates a bitmap using a reference to another CoglBitmap for the data. This is a bit of a hack but it is needed by the atlas texture backend which wants to divert the set_region virtual to another texture but it needs to override the format of the bitmap to ignore the premult flag.
2010-07-07 13:44:16 -04:00
if (!_cogl_texture_2d_can_create (_cogl_bitmap_get_width (bmp),
_cogl_bitmap_get_height (bmp),
internal_format))
Make CoglTexture2D public as experimental API This exposes a CoglTexture2D typedef and adds the following experimental API: cogl_is_texture_2d cogl_texture_2d_new_with_size cogl_texture_2d_new_from_data cogl_texture_2d_new_from_foreign Since this is experimental API you need to define COGL_ENABLE_EXPERIMENTAL_API before including cogl.h. Note: With these new entrypoints we now expect a CoglContext pointer to be passed in, instead of assuming there is a default context. The aim is that for Cogl 2.0 we won't have a default context so this is a step in that direction.
2011-05-16 19:05:54 -04:00
{
g_set_error (error, COGL_TEXTURE_ERROR,
COGL_TEXTURE_ERROR_SIZE,
"Failed to create texture 2d due to size/format"
" constraints");
return NULL;
}
Fall back in _cogl_texture_2d_new_from_bitmap() Just like _cogl_texture_2d_new_with_size(), _cogl_texture_2d_new_from_bitmap() needs to check if an unsliced texture can be created at the given size, or if hardware limitations prevent this. http://bugzilla.openedhand.com/show_bug.cgi?id=2014 Signed-off-by: Neil Roberts <neil@linux.intel.com>
2010-03-01 13:54:03 -05:00
cogl-bitmap: Encapsulate the CoglBitmap even internally The CoglBitmap struct is now only defined within cogl-bitmap.c so that all of its members can now only be accessed with accessor functions. To get to the data pointer for the bitmap image you must first call _cogl_bitmap_map and later call _cogl_bitmap_unmap. The map function takes the same arguments as cogl_pixel_array_map so that eventually we can make a bitmap optionally internally divert to a pixel array. There is a _cogl_bitmap_new_from_data function which constructs a new bitmap object and takes ownership of the data pointer. The function gets passed a destroy callback which gets called when the bitmap is freed. This is similar to how gdk_pixbuf_new_from_data works. Alternatively NULL can be passed for the destroy function which means that the caller will manage the life of the pointer (but must guarantee that it stays alive at least until the bitmap is freed). This mechanism is used instead of the old approach of creating a CoglBitmap struct on the stack and manually filling in the members. It could also later be used to create a CoglBitmap that owns a GdkPixbuf ref so that we don't necessarily have to copy the GdkPixbuf data when converting to a bitmap. There is also _cogl_bitmap_new_shared. This creates a bitmap using a reference to another CoglBitmap for the data. This is a bit of a hack but it is needed by the atlas texture backend which wants to divert the set_region virtual to another texture but it needs to override the format of the bitmap to ignore the premult flag.
2010-07-07 13:44:16 -04:00
if ((dst_bmp = _cogl_texture_prepare_for_upload (bmp,
internal_format,
&internal_format,
&gl_intformat,
&gl_format,
&gl_type)) == NULL)
Make CoglTexture2D public as experimental API This exposes a CoglTexture2D typedef and adds the following experimental API: cogl_is_texture_2d cogl_texture_2d_new_with_size cogl_texture_2d_new_from_data cogl_texture_2d_new_from_foreign Since this is experimental API you need to define COGL_ENABLE_EXPERIMENTAL_API before including cogl.h. Note: With these new entrypoints we now expect a CoglContext pointer to be passed in, instead of assuming there is a default context. The aim is that for Cogl 2.0 we won't have a default context so this is a step in that direction.
2011-05-16 19:05:54 -04:00
{
g_set_error (error, COGL_TEXTURE_ERROR,
COGL_TEXTURE_ERROR_FORMAT,
"Failed to prepare texture upload due to format");
return NULL;
}
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
cogl-bitmap: Encapsulate the CoglBitmap even internally The CoglBitmap struct is now only defined within cogl-bitmap.c so that all of its members can now only be accessed with accessor functions. To get to the data pointer for the bitmap image you must first call _cogl_bitmap_map and later call _cogl_bitmap_unmap. The map function takes the same arguments as cogl_pixel_array_map so that eventually we can make a bitmap optionally internally divert to a pixel array. There is a _cogl_bitmap_new_from_data function which constructs a new bitmap object and takes ownership of the data pointer. The function gets passed a destroy callback which gets called when the bitmap is freed. This is similar to how gdk_pixbuf_new_from_data works. Alternatively NULL can be passed for the destroy function which means that the caller will manage the life of the pointer (but must guarantee that it stays alive at least until the bitmap is freed). This mechanism is used instead of the old approach of creating a CoglBitmap struct on the stack and manually filling in the members. It could also later be used to create a CoglBitmap that owns a GdkPixbuf ref so that we don't necessarily have to copy the GdkPixbuf data when converting to a bitmap. There is also _cogl_bitmap_new_shared. This creates a bitmap using a reference to another CoglBitmap for the data. This is a bit of a hack but it is needed by the atlas texture backend which wants to divert the set_region virtual to another texture but it needs to override the format of the bitmap to ignore the premult flag.
2010-07-07 13:44:16 -04:00
tex_2d = _cogl_texture_2d_create_base (_cogl_bitmap_get_width (bmp),
_cogl_bitmap_get_height (bmp),
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
flags,
cogl: Let GL do the format conversion when uploading texture data Cogl accepts a pixel format for both the data in memory and the internal format to be used for the texture. If they do not match then it would convert them using the CoglBitmap functions before uploading the data. However, GL also lets you specify both formats so it makes more sense to let GL do the conversion. The driver may need the texture in a specific format so it may end up being converted anyway. The cogl_texture_upload_data functions have been removed and replaced with a single function to prepare the bitmap. This will only do the premultiplication conversion because that is the only part that GL can't do directly.
2010-02-01 07:11:58 -05:00
internal_format);
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
Add a GL_GENERATE_MIPMAP fallback to the texture 2d and 3d backends The CoglTexture2DSliced backend has a fallback for when the framebuffer extension is missing so it's not possible to use glGenerateMipmap. This involves keeping a copy of the upper-left pixel of the tex image so that we can temporarily enable GL_GENERATE_MIPMAP on the texture object and do a sub texture update by reuploading the contents of the first pixel. This patch copies that mechanism to the 2D and 3D backends. The CoglTexturePixel structure which was previously internal to the sliced backend has been moved to cogl-texture-private.h so that it can be shared.
2010-07-13 13:41:01 -04:00
/* Keep a copy of the first pixel so that if glGenerateMipmap isn't
supported we can fallback to using GL_GENERATE_MIPMAP */
features: Support more than 32 features! Currently features are represented as bits in a 32bit mask so we obviously can't have more than 32 features with that approach. The new approach is to use the COGL_FLAGS_ macros which lets us handle bitmasks without a size limit and we change the public api to accept individual feature enums instead of a mask. This way there is no limit on the number of features we can add to Cogl. Instead of using cogl_features_available() there is a new cogl_has_feature() function and for checking multiple features there is cogl_has_features() which takes a zero terminated vararg list of features. In addition to being able to check for individual features this also adds a way to query all the features currently available via cogl_foreach_feature() which will call a callback for each feature. Since the new functions take an explicit context pointer there is also no longer any ambiguity over when users can first start to query features. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-12 17:31:12 -04:00
if (!cogl_has_feature (ctx, COGL_FEATURE_ID_OFFSCREEN) &&
cogl-bitmap: Encapsulate the CoglBitmap even internally The CoglBitmap struct is now only defined within cogl-bitmap.c so that all of its members can now only be accessed with accessor functions. To get to the data pointer for the bitmap image you must first call _cogl_bitmap_map and later call _cogl_bitmap_unmap. The map function takes the same arguments as cogl_pixel_array_map so that eventually we can make a bitmap optionally internally divert to a pixel array. There is a _cogl_bitmap_new_from_data function which constructs a new bitmap object and takes ownership of the data pointer. The function gets passed a destroy callback which gets called when the bitmap is freed. This is similar to how gdk_pixbuf_new_from_data works. Alternatively NULL can be passed for the destroy function which means that the caller will manage the life of the pointer (but must guarantee that it stays alive at least until the bitmap is freed). This mechanism is used instead of the old approach of creating a CoglBitmap struct on the stack and manually filling in the members. It could also later be used to create a CoglBitmap that owns a GdkPixbuf ref so that we don't necessarily have to copy the GdkPixbuf data when converting to a bitmap. There is also _cogl_bitmap_new_shared. This creates a bitmap using a reference to another CoglBitmap for the data. This is a bit of a hack but it is needed by the atlas texture backend which wants to divert the set_region virtual to another texture but it needs to override the format of the bitmap to ignore the premult flag.
2010-07-07 13:44:16 -04:00
(data = _cogl_bitmap_map (dst_bmp,
COGL_BUFFER_ACCESS_READ, 0)))
{
tex_2d->first_pixel.gl_format = gl_format;
tex_2d->first_pixel.gl_type = gl_type;
memcpy (tex_2d->first_pixel.data, data,
_cogl_get_format_bpp (_cogl_bitmap_get_format (dst_bmp)));
_cogl_bitmap_unmap (dst_bmp);
}
Add a GL_GENERATE_MIPMAP fallback to the texture 2d and 3d backends The CoglTexture2DSliced backend has a fallback for when the framebuffer extension is missing so it's not possible to use glGenerateMipmap. This involves keeping a copy of the upper-left pixel of the tex image so that we can temporarily enable GL_GENERATE_MIPMAP on the texture object and do a sub texture update by reuploading the contents of the first pixel. This patch copies that mechanism to the 2D and 3D backends. The CoglTexturePixel structure which was previously internal to the sliced backend has been moved to cogl-texture-private.h so that it can be shared.
2010-07-13 13:41:01 -04:00
Move the cogl texture driver functions to a vtable The texture driver functions are now accessed through a vtable pointed to by a struct in the CoglContext so that eventually it will be possible to compile both the GL and GLES texture drivers into a single binary and then select between them at runtime.
2011-07-07 07:48:24 -04:00
ctx->texture_driver->gen (GL_TEXTURE_2D, 1, &tex_2d->gl_texture);
ctx->texture_driver->upload_to_gl (GL_TEXTURE_2D,
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
tex_2d->gl_texture,
material: Avoid redundant glBindTexture calls This adds a _cogl_bind_gl_texture_transient function that should be used instead of glBindTexture so we can have a consistent cache of the textures bound to each texture unit so we can avoid some redundant binding.
2010-04-26 05:01:43 -04:00
FALSE,
cogl-bitmap: Encapsulate the CoglBitmap even internally The CoglBitmap struct is now only defined within cogl-bitmap.c so that all of its members can now only be accessed with accessor functions. To get to the data pointer for the bitmap image you must first call _cogl_bitmap_map and later call _cogl_bitmap_unmap. The map function takes the same arguments as cogl_pixel_array_map so that eventually we can make a bitmap optionally internally divert to a pixel array. There is a _cogl_bitmap_new_from_data function which constructs a new bitmap object and takes ownership of the data pointer. The function gets passed a destroy callback which gets called when the bitmap is freed. This is similar to how gdk_pixbuf_new_from_data works. Alternatively NULL can be passed for the destroy function which means that the caller will manage the life of the pointer (but must guarantee that it stays alive at least until the bitmap is freed). This mechanism is used instead of the old approach of creating a CoglBitmap struct on the stack and manually filling in the members. It could also later be used to create a CoglBitmap that owns a GdkPixbuf ref so that we don't necessarily have to copy the GdkPixbuf data when converting to a bitmap. There is also _cogl_bitmap_new_shared. This creates a bitmap using a reference to another CoglBitmap for the data. This is a bit of a hack but it is needed by the atlas texture backend which wants to divert the set_region virtual to another texture but it needs to override the format of the bitmap to ignore the premult flag.
2010-07-07 13:44:16 -04:00
dst_bmp,
cogl: Let GL do the format conversion when uploading texture data Cogl accepts a pixel format for both the data in memory and the internal format to be used for the texture. If they do not match then it would convert them using the CoglBitmap functions before uploading the data. However, GL also lets you specify both formats so it makes more sense to let GL do the conversion. The driver may need the texture in a specific format so it may end up being converted anyway. The cogl_texture_upload_data functions have been removed and replaced with a single function to prepare the bitmap. This will only do the premultiplication conversion because that is the only part that GL can't do directly.
2010-02-01 07:11:58 -05:00
gl_intformat,
gl_format,
gl_type);
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
cogl: Let GL do the format conversion when uploading texture data Cogl accepts a pixel format for both the data in memory and the internal format to be used for the texture. If they do not match then it would convert them using the CoglBitmap functions before uploading the data. However, GL also lets you specify both formats so it makes more sense to let GL do the conversion. The driver may need the texture in a specific format so it may end up being converted anyway. The cogl_texture_upload_data functions have been removed and replaced with a single function to prepare the bitmap. This will only do the premultiplication conversion because that is the only part that GL can't do directly.
2010-02-01 07:11:58 -05:00
tex_2d->gl_format = gl_intformat;
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
cogl-bitmap: Encapsulate the CoglBitmap even internally The CoglBitmap struct is now only defined within cogl-bitmap.c so that all of its members can now only be accessed with accessor functions. To get to the data pointer for the bitmap image you must first call _cogl_bitmap_map and later call _cogl_bitmap_unmap. The map function takes the same arguments as cogl_pixel_array_map so that eventually we can make a bitmap optionally internally divert to a pixel array. There is a _cogl_bitmap_new_from_data function which constructs a new bitmap object and takes ownership of the data pointer. The function gets passed a destroy callback which gets called when the bitmap is freed. This is similar to how gdk_pixbuf_new_from_data works. Alternatively NULL can be passed for the destroy function which means that the caller will manage the life of the pointer (but must guarantee that it stays alive at least until the bitmap is freed). This mechanism is used instead of the old approach of creating a CoglBitmap struct on the stack and manually filling in the members. It could also later be used to create a CoglBitmap that owns a GdkPixbuf ref so that we don't necessarily have to copy the GdkPixbuf data when converting to a bitmap. There is also _cogl_bitmap_new_shared. This creates a bitmap using a reference to another CoglBitmap for the data. This is a bit of a hack but it is needed by the atlas texture backend which wants to divert the set_region virtual to another texture but it needs to override the format of the bitmap to ignore the premult flag.
2010-07-07 13:44:16 -04:00
cogl_object_unref (dst_bmp);
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
return _cogl_texture_2d_handle_new (tex_2d);
}
Make CoglTexture2D public as experimental API This exposes a CoglTexture2D typedef and adds the following experimental API: cogl_is_texture_2d cogl_texture_2d_new_with_size cogl_texture_2d_new_from_data cogl_texture_2d_new_from_foreign Since this is experimental API you need to define COGL_ENABLE_EXPERIMENTAL_API before including cogl.h. Note: With these new entrypoints we now expect a CoglContext pointer to be passed in, instead of assuming there is a default context. The aim is that for Cogl 2.0 we won't have a default context so this is a step in that direction.
2011-05-16 19:05:54 -04:00
CoglTexture2D *
cogl_texture_2d_new_from_data (CoglContext *ctx,
int width,
int height,
CoglPixelFormat format,
CoglPixelFormat internal_format,
int rowstride,
const guint8 *data,
GError **error)
{
CoglBitmap *bmp;
CoglHandle tex;
Start to reduce dependence on glib Since we've had several developers from admirable projects say they would like to use Cogl but would really prefer not to pull in gobject,gmodule and glib as extra dependencies we are investigating if we can get to the point where glib is only an optional dependency. Actually we feel like we only make minimal use of glib anyway, so it may well be quite straightforward to achieve this. This adds a --disable-glib configure option that can be used to disable features that depend on glib. Actually --disable-glib doesn't strictly disable glib at this point because it's more helpful if cogl continues to build as we make incremental progress towards this. The first use of glib that this patch tackles is the use of g_return_val_if_fail and g_return_if_fail which have been replaced with equivalent _COGL_RETURN_VAL_IF_FAIL and _COGL_RETURN_IF_FAIL macros. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-13 17:34:30 -04:00
_COGL_RETURN_VAL_IF_FAIL (format != COGL_PIXEL_FORMAT_ANY, NULL);
_COGL_RETURN_VAL_IF_FAIL (data != NULL, NULL);
Make CoglTexture2D public as experimental API This exposes a CoglTexture2D typedef and adds the following experimental API: cogl_is_texture_2d cogl_texture_2d_new_with_size cogl_texture_2d_new_from_data cogl_texture_2d_new_from_foreign Since this is experimental API you need to define COGL_ENABLE_EXPERIMENTAL_API before including cogl.h. Note: With these new entrypoints we now expect a CoglContext pointer to be passed in, instead of assuming there is a default context. The aim is that for Cogl 2.0 we won't have a default context so this is a step in that direction.
2011-05-16 19:05:54 -04:00
/* Rowstride from width if not given */
if (rowstride == 0)
rowstride = width * _cogl_get_format_bpp (format);
/* Wrap the data into a bitmap */
bmp = _cogl_bitmap_new_from_data ((guint8 *)data,
format,
width,
height,
rowstride,
NULL, NULL);
tex =_cogl_texture_2d_new_from_bitmap (bmp, COGL_TEXTURE_NONE,
internal_format,
error);
cogl_object_unref (bmp);
return tex;
}
CoglTexture2D *
cogl_texture_2d_new_from_foreign (CoglContext *ctx,
GLuint gl_handle,
int width,
int height,
CoglPixelFormat format,
GError **error)
Support foreign textures in the texture-2d and rectangle backends This adds two new internal functions to create a foreign texture for the texture 2d and rectangle backends. cogl_texture_new_from_foreign will now use one of these backends directly if there is no waste instead of always using the sliced texture backend.
2010-10-04 10:27:38 -04:00
{
/* NOTE: width, height and internal format are not queriable
* in GLES, hence such a function prototype.
*/
GLenum gl_error = 0;
GLint gl_compressed = GL_FALSE;
GLenum gl_int_format = 0;
CoglTexture2D *tex_2d;
Move the cogl texture driver functions to a vtable The texture driver functions are now accessed through a vtable pointed to by a struct in the CoglContext so that eventually it will be possible to compile both the GL and GLES texture drivers into a single binary and then select between them at runtime.
2011-07-07 07:48:24 -04:00
if (!ctx->texture_driver->allows_foreign_gl_target (GL_TEXTURE_2D))
Support foreign textures in the texture-2d and rectangle backends This adds two new internal functions to create a foreign texture for the texture 2d and rectangle backends. cogl_texture_new_from_foreign will now use one of these backends directly if there is no waste instead of always using the sliced texture backend.
2010-10-04 10:27:38 -04:00
return COGL_INVALID_HANDLE;
/* Make sure it is a valid GL texture object */
Use all core GL functions through indirect pointers cogl-ext-functions.h now contains definitions for all of the core GL and GLES functions that we would normally link to directly. All of the code has changed to access them through the cogl context pointer. The GE macro now takes an extra parameter to specify the context because the macro itself needs to make GL calls but various points in the Cogl source use different names for the context variable.
2011-07-06 16:51:00 -04:00
if (!ctx->glIsTexture (gl_handle))
Support foreign textures in the texture-2d and rectangle backends This adds two new internal functions to create a foreign texture for the texture 2d and rectangle backends. cogl_texture_new_from_foreign will now use one of these backends directly if there is no waste instead of always using the sliced texture backend.
2010-10-04 10:27:38 -04:00
return COGL_INVALID_HANDLE;
/* Make sure binding succeeds */
Use all core GL functions through indirect pointers cogl-ext-functions.h now contains definitions for all of the core GL and GLES functions that we would normally link to directly. All of the code has changed to access them through the cogl context pointer. The GE macro now takes an extra parameter to specify the context because the macro itself needs to make GL calls but various points in the Cogl source use different names for the context variable.
2011-07-06 16:51:00 -04:00
while ((gl_error = ctx->glGetError ()) != GL_NO_ERROR)
Support foreign textures in the texture-2d and rectangle backends This adds two new internal functions to create a foreign texture for the texture 2d and rectangle backends. cogl_texture_new_from_foreign will now use one of these backends directly if there is no waste instead of always using the sliced texture backend.
2010-10-04 10:27:38 -04:00
;
_cogl_bind_gl_texture_transient (GL_TEXTURE_2D, gl_handle, TRUE);
Use all core GL functions through indirect pointers cogl-ext-functions.h now contains definitions for all of the core GL and GLES functions that we would normally link to directly. All of the code has changed to access them through the cogl context pointer. The GE macro now takes an extra parameter to specify the context because the macro itself needs to make GL calls but various points in the Cogl source use different names for the context variable.
2011-07-06 16:51:00 -04:00
if (ctx->glGetError () != GL_NO_ERROR)
Support foreign textures in the texture-2d and rectangle backends This adds two new internal functions to create a foreign texture for the texture 2d and rectangle backends. cogl_texture_new_from_foreign will now use one of these backends directly if there is no waste instead of always using the sliced texture backend.
2010-10-04 10:27:38 -04:00
return COGL_INVALID_HANDLE;
/* Obtain texture parameters
(only level 0 we are interested in) */
#if HAVE_COGL_GL
Dynamically load the GL or GLES library The GL or GLES library is now dynamically loaded by the CoglRenderer so that it can choose between GL, GLES1 and GLES2 at runtime. The library is loaded by the renderer because it needs to be done before calling eglInitialize. There is a new environment variable called COGL_DRIVER to choose between gl, gles1 or gles2. The #ifdefs for HAVE_COGL_GL, HAVE_COGL_GLES and HAVE_COGL_GLES2 have been changed so that they don't assume the ifdefs are mutually exclusive. They haven't been removed entirely so that it's possible to compile the GLES backends without the the enums from the GL headers. When using GLX the winsys additionally dynamically loads libGL because that also contains the GLX API. It can't be linked in directly because that would probably conflict with the GLES API if the EGL is selected. When compiling with EGL support the library links directly to libEGL because it doesn't contain any GL API so it shouldn't have any conflicts. When building for WGL or OSX Cogl still directly links against the GL API so there is a #define in config.h so that Cogl won't try to dlopen the library. Cogl-pango previously had a #ifdef to detect when the GL backend is used so that it can sneakily pass GL_QUADS to cogl_vertex_buffer_draw. This is now changed so that it queries the CoglContext for the backend. However to get this to work Cogl now needs to export the _cogl_context_get_default symbol and cogl-pango needs some extra -I flags to so that it can include cogl-context-private.h
2011-07-07 15:44:56 -04:00
if (ctx->driver == COGL_DRIVER_GL)
{
GE( ctx, glGetTexLevelParameteriv (GL_TEXTURE_2D, 0,
GL_TEXTURE_COMPRESSED,
&gl_compressed) );
Support foreign textures in the texture-2d and rectangle backends This adds two new internal functions to create a foreign texture for the texture 2d and rectangle backends. cogl_texture_new_from_foreign will now use one of these backends directly if there is no waste instead of always using the sliced texture backend.
2010-10-04 10:27:38 -04:00
Dynamically load the GL or GLES library The GL or GLES library is now dynamically loaded by the CoglRenderer so that it can choose between GL, GLES1 and GLES2 at runtime. The library is loaded by the renderer because it needs to be done before calling eglInitialize. There is a new environment variable called COGL_DRIVER to choose between gl, gles1 or gles2. The #ifdefs for HAVE_COGL_GL, HAVE_COGL_GLES and HAVE_COGL_GLES2 have been changed so that they don't assume the ifdefs are mutually exclusive. They haven't been removed entirely so that it's possible to compile the GLES backends without the the enums from the GL headers. When using GLX the winsys additionally dynamically loads libGL because that also contains the GLX API. It can't be linked in directly because that would probably conflict with the GLES API if the EGL is selected. When compiling with EGL support the library links directly to libEGL because it doesn't contain any GL API so it shouldn't have any conflicts. When building for WGL or OSX Cogl still directly links against the GL API so there is a #define in config.h so that Cogl won't try to dlopen the library. Cogl-pango previously had a #ifdef to detect when the GL backend is used so that it can sneakily pass GL_QUADS to cogl_vertex_buffer_draw. This is now changed so that it queries the CoglContext for the backend. However to get this to work Cogl now needs to export the _cogl_context_get_default symbol and cogl-pango needs some extra -I flags to so that it can include cogl-context-private.h
2011-07-07 15:44:56 -04:00
{
GLint val;
Support foreign textures in the texture-2d and rectangle backends This adds two new internal functions to create a foreign texture for the texture 2d and rectangle backends. cogl_texture_new_from_foreign will now use one of these backends directly if there is no waste instead of always using the sliced texture backend.
2010-10-04 10:27:38 -04:00
Dynamically load the GL or GLES library The GL or GLES library is now dynamically loaded by the CoglRenderer so that it can choose between GL, GLES1 and GLES2 at runtime. The library is loaded by the renderer because it needs to be done before calling eglInitialize. There is a new environment variable called COGL_DRIVER to choose between gl, gles1 or gles2. The #ifdefs for HAVE_COGL_GL, HAVE_COGL_GLES and HAVE_COGL_GLES2 have been changed so that they don't assume the ifdefs are mutually exclusive. They haven't been removed entirely so that it's possible to compile the GLES backends without the the enums from the GL headers. When using GLX the winsys additionally dynamically loads libGL because that also contains the GLX API. It can't be linked in directly because that would probably conflict with the GLES API if the EGL is selected. When compiling with EGL support the library links directly to libEGL because it doesn't contain any GL API so it shouldn't have any conflicts. When building for WGL or OSX Cogl still directly links against the GL API so there is a #define in config.h so that Cogl won't try to dlopen the library. Cogl-pango previously had a #ifdef to detect when the GL backend is used so that it can sneakily pass GL_QUADS to cogl_vertex_buffer_draw. This is now changed so that it queries the CoglContext for the backend. However to get this to work Cogl now needs to export the _cogl_context_get_default symbol and cogl-pango needs some extra -I flags to so that it can include cogl-context-private.h
2011-07-07 15:44:56 -04:00
GE( ctx, glGetTexLevelParameteriv (GL_TEXTURE_2D, 0,
GL_TEXTURE_INTERNAL_FORMAT,
&val) );
Support foreign textures in the texture-2d and rectangle backends This adds two new internal functions to create a foreign texture for the texture 2d and rectangle backends. cogl_texture_new_from_foreign will now use one of these backends directly if there is no waste instead of always using the sliced texture backend.
2010-10-04 10:27:38 -04:00
Dynamically load the GL or GLES library The GL or GLES library is now dynamically loaded by the CoglRenderer so that it can choose between GL, GLES1 and GLES2 at runtime. The library is loaded by the renderer because it needs to be done before calling eglInitialize. There is a new environment variable called COGL_DRIVER to choose between gl, gles1 or gles2. The #ifdefs for HAVE_COGL_GL, HAVE_COGL_GLES and HAVE_COGL_GLES2 have been changed so that they don't assume the ifdefs are mutually exclusive. They haven't been removed entirely so that it's possible to compile the GLES backends without the the enums from the GL headers. When using GLX the winsys additionally dynamically loads libGL because that also contains the GLX API. It can't be linked in directly because that would probably conflict with the GLES API if the EGL is selected. When compiling with EGL support the library links directly to libEGL because it doesn't contain any GL API so it shouldn't have any conflicts. When building for WGL or OSX Cogl still directly links against the GL API so there is a #define in config.h so that Cogl won't try to dlopen the library. Cogl-pango previously had a #ifdef to detect when the GL backend is used so that it can sneakily pass GL_QUADS to cogl_vertex_buffer_draw. This is now changed so that it queries the CoglContext for the backend. However to get this to work Cogl now needs to export the _cogl_context_get_default symbol and cogl-pango needs some extra -I flags to so that it can include cogl-context-private.h
2011-07-07 15:44:56 -04:00
gl_int_format = val;
}
Support foreign textures in the texture-2d and rectangle backends This adds two new internal functions to create a foreign texture for the texture 2d and rectangle backends. cogl_texture_new_from_foreign will now use one of these backends directly if there is no waste instead of always using the sliced texture backend.
2010-10-04 10:27:38 -04:00
Dynamically load the GL or GLES library The GL or GLES library is now dynamically loaded by the CoglRenderer so that it can choose between GL, GLES1 and GLES2 at runtime. The library is loaded by the renderer because it needs to be done before calling eglInitialize. There is a new environment variable called COGL_DRIVER to choose between gl, gles1 or gles2. The #ifdefs for HAVE_COGL_GL, HAVE_COGL_GLES and HAVE_COGL_GLES2 have been changed so that they don't assume the ifdefs are mutually exclusive. They haven't been removed entirely so that it's possible to compile the GLES backends without the the enums from the GL headers. When using GLX the winsys additionally dynamically loads libGL because that also contains the GLX API. It can't be linked in directly because that would probably conflict with the GLES API if the EGL is selected. When compiling with EGL support the library links directly to libEGL because it doesn't contain any GL API so it shouldn't have any conflicts. When building for WGL or OSX Cogl still directly links against the GL API so there is a #define in config.h so that Cogl won't try to dlopen the library. Cogl-pango previously had a #ifdef to detect when the GL backend is used so that it can sneakily pass GL_QUADS to cogl_vertex_buffer_draw. This is now changed so that it queries the CoglContext for the backend. However to get this to work Cogl now needs to export the _cogl_context_get_default symbol and cogl-pango needs some extra -I flags to so that it can include cogl-context-private.h
2011-07-07 15:44:56 -04:00
/* If we can query GL for the actual pixel format then we'll ignore
the passed in format and use that. */
if (!ctx->texture_driver->pixel_format_from_gl_internal (gl_int_format,
&format))
return COGL_INVALID_HANDLE;
}
else
Support foreign textures in the texture-2d and rectangle backends This adds two new internal functions to create a foreign texture for the texture 2d and rectangle backends. cogl_texture_new_from_foreign will now use one of these backends directly if there is no waste instead of always using the sliced texture backend.
2010-10-04 10:27:38 -04:00
#endif
Dynamically load the GL or GLES library The GL or GLES library is now dynamically loaded by the CoglRenderer so that it can choose between GL, GLES1 and GLES2 at runtime. The library is loaded by the renderer because it needs to be done before calling eglInitialize. There is a new environment variable called COGL_DRIVER to choose between gl, gles1 or gles2. The #ifdefs for HAVE_COGL_GL, HAVE_COGL_GLES and HAVE_COGL_GLES2 have been changed so that they don't assume the ifdefs are mutually exclusive. They haven't been removed entirely so that it's possible to compile the GLES backends without the the enums from the GL headers. When using GLX the winsys additionally dynamically loads libGL because that also contains the GLX API. It can't be linked in directly because that would probably conflict with the GLES API if the EGL is selected. When compiling with EGL support the library links directly to libEGL because it doesn't contain any GL API so it shouldn't have any conflicts. When building for WGL or OSX Cogl still directly links against the GL API so there is a #define in config.h so that Cogl won't try to dlopen the library. Cogl-pango previously had a #ifdef to detect when the GL backend is used so that it can sneakily pass GL_QUADS to cogl_vertex_buffer_draw. This is now changed so that it queries the CoglContext for the backend. However to get this to work Cogl now needs to export the _cogl_context_get_default symbol and cogl-pango needs some extra -I flags to so that it can include cogl-context-private.h
2011-07-07 15:44:56 -04:00
{
/* Otherwise we'll assume we can derive the GL format from the
passed in format */
ctx->texture_driver->pixel_format_to_gl (format,
&gl_int_format,
NULL,
NULL);
}
Support foreign textures in the texture-2d and rectangle backends This adds two new internal functions to create a foreign texture for the texture 2d and rectangle backends. cogl_texture_new_from_foreign will now use one of these backends directly if there is no waste instead of always using the sliced texture backend.
2010-10-04 10:27:38 -04:00
/* Note: We always trust the given width and height without querying
* the texture object because the user may be creating a Cogl
* texture for a texture_from_pixmap object where glTexImage2D may
* not have been called and the texture_from_pixmap spec doesn't
* clarify that it is reliable to query back the size from OpenGL.
*/
/* Validate width and height */
if (width <= 0 || height <= 0)
return COGL_INVALID_HANDLE;
/* Compressed texture images not supported */
if (gl_compressed == GL_TRUE)
return COGL_INVALID_HANDLE;
/* Note: previously this code would query the texture object for
whether it has GL_GENERATE_MIPMAP enabled to determine whether to
auto-generate the mipmap. This doesn't make much sense any more
since Cogl switch to using glGenerateMipmap. Ideally I think
cogl_texture_new_from_foreign should take a flags parameter so
that the application can decide whether it wants
auto-mipmapping. To be compatible with existing code, Cogl now
disables its own auto-mipmapping but leaves the value of
GL_GENERATE_MIPMAP alone so that it would still work but without
the dirtiness tracking that Cogl would do. */
/* Create new texture */
tex_2d = _cogl_texture_2d_create_base (width, height,
COGL_TEXTURE_NO_AUTO_MIPMAP,
format);
/* Setup bitmap info */
tex_2d->is_foreign = TRUE;
tex_2d->mipmaps_dirty = TRUE;
tex_2d->format = format;
tex_2d->gl_texture = gl_handle;
tex_2d->gl_format = gl_int_format;
/* Unknown filter */
tex_2d->min_filter = GL_FALSE;
tex_2d->mag_filter = GL_FALSE;
return _cogl_texture_2d_handle_new (tex_2d);
}
Add _cogl_egl_texture_2d_new_from_image API This adds an internal texture_2d constructor that can wrap an EGLImage as a CoglTexture2D. The plan is to utilize this for texture-from-pixmap support with EGL as well as creating textures from wayland buffers.
2011-05-24 17:34:10 -04:00
#if defined (COGL_HAS_EGL_SUPPORT) && defined (EGL_KHR_image_base)
/* NB: The reason we require the width, height and format to be passed
* even though they may seem redundant is because GLES 1/2 don't
* provide a way to query these properties. */
CoglTexture2D *
_cogl_egl_texture_2d_new_from_image (CoglContext *ctx,
int width,
int height,
CoglPixelFormat format,
EGLImageKHR image,
GError **error)
{
CoglTexture2D *tex_2d;
GLenum gl_error;
Start to reduce dependence on glib Since we've had several developers from admirable projects say they would like to use Cogl but would really prefer not to pull in gobject,gmodule and glib as extra dependencies we are investigating if we can get to the point where glib is only an optional dependency. Actually we feel like we only make minimal use of glib anyway, so it may well be quite straightforward to achieve this. This adds a --disable-glib configure option that can be used to disable features that depend on glib. Actually --disable-glib doesn't strictly disable glib at this point because it's more helpful if cogl continues to build as we make incremental progress towards this. The first use of glib that this patch tackles is the use of g_return_val_if_fail and g_return_if_fail which have been replaced with equivalent _COGL_RETURN_VAL_IF_FAIL and _COGL_RETURN_IF_FAIL macros. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-13 17:34:30 -04:00
_COGL_RETURN_VAL_IF_FAIL (_cogl_context_get_winsys (ctx) ==
Add _cogl_egl_texture_2d_new_from_image API This adds an internal texture_2d constructor that can wrap an EGLImage as a CoglTexture2D. The plan is to utilize this for texture-from-pixmap support with EGL as well as creating textures from wayland buffers.
2011-05-24 17:34:10 -04:00
_cogl_winsys_egl_get_vtable (),
NULL);
Start to reduce dependence on glib Since we've had several developers from admirable projects say they would like to use Cogl but would really prefer not to pull in gobject,gmodule and glib as extra dependencies we are investigating if we can get to the point where glib is only an optional dependency. Actually we feel like we only make minimal use of glib anyway, so it may well be quite straightforward to achieve this. This adds a --disable-glib configure option that can be used to disable features that depend on glib. Actually --disable-glib doesn't strictly disable glib at this point because it's more helpful if cogl continues to build as we make incremental progress towards this. The first use of glib that this patch tackles is the use of g_return_val_if_fail and g_return_if_fail which have been replaced with equivalent _COGL_RETURN_VAL_IF_FAIL and _COGL_RETURN_IF_FAIL macros. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-13 17:34:30 -04:00
_COGL_RETURN_VAL_IF_FAIL (ctx->private_feature_flags &
Add _cogl_egl_texture_2d_new_from_image API This adds an internal texture_2d constructor that can wrap an EGLImage as a CoglTexture2D. The plan is to utilize this for texture-from-pixmap support with EGL as well as creating textures from wayland buffers.
2011-05-24 17:34:10 -04:00
COGL_PRIVATE_FEATURE_TEXTURE_2D_FROM_EGL_IMAGE,
NULL);
tex_2d = _cogl_texture_2d_create_base (width, height, COGL_TEXTURE_NONE,
format);
Move the cogl texture driver functions to a vtable The texture driver functions are now accessed through a vtable pointed to by a struct in the CoglContext so that eventually it will be possible to compile both the GL and GLES texture drivers into a single binary and then select between them at runtime.
2011-07-07 07:48:24 -04:00
ctx->texture_driver->gen (GL_TEXTURE_2D, 1, &tex_2d->gl_texture);
Add _cogl_egl_texture_2d_new_from_image API This adds an internal texture_2d constructor that can wrap an EGLImage as a CoglTexture2D. The plan is to utilize this for texture-from-pixmap support with EGL as well as creating textures from wayland buffers.
2011-05-24 17:34:10 -04:00
_cogl_bind_gl_texture_transient (GL_TEXTURE_2D,
tex_2d->gl_texture,
FALSE);
Use all core GL functions through indirect pointers cogl-ext-functions.h now contains definitions for all of the core GL and GLES functions that we would normally link to directly. All of the code has changed to access them through the cogl context pointer. The GE macro now takes an extra parameter to specify the context because the macro itself needs to make GL calls but various points in the Cogl source use different names for the context variable.
2011-07-06 16:51:00 -04:00
while ((gl_error = ctx->glGetError ()) != GL_NO_ERROR)
Add _cogl_egl_texture_2d_new_from_image API This adds an internal texture_2d constructor that can wrap an EGLImage as a CoglTexture2D. The plan is to utilize this for texture-from-pixmap support with EGL as well as creating textures from wayland buffers.
2011-05-24 17:34:10 -04:00
;
Move all of the GL function pointers directly to CoglContext Instead of storing all of the feature function pointers in the driver specific data of the CoglContext they are now all stored directly in CoglContext. There is a single header containing the description of the functions which gets included by cogl-context.h. There is a single function in cogl-feature-private.c to check for all of these functions. The name of the function pointer variables have been changed from ctx->drv.pf_glWhatever to just ctx->glWhatever. The feature flags that get set when an extension is available are now separated from the table of extensions. This is necessary because different extensions can mean different things on GLES and GL. For example, having access to glMapBuffer implies read and write support on GL but only write support on GLES. The flags are instead set in the driver specific init function by checking whether the function pointers were successfully resolved. _cogl_feature_check has been changed to assume the feature is supported if any of the listed extensions are available instead of requiring all of them. This makes it more convenient to specify alternate names for the extension. Nothing else had previously listed more than one name for an extension so this shouldn't cause any problems.
2011-07-06 13:59:20 -04:00
ctx->glEGLImageTargetTexture2D (GL_TEXTURE_2D, image);
Use all core GL functions through indirect pointers cogl-ext-functions.h now contains definitions for all of the core GL and GLES functions that we would normally link to directly. All of the code has changed to access them through the cogl context pointer. The GE macro now takes an extra parameter to specify the context because the macro itself needs to make GL calls but various points in the Cogl source use different names for the context variable.
2011-07-06 16:51:00 -04:00
if (ctx->glGetError () != GL_NO_ERROR)
Add _cogl_egl_texture_2d_new_from_image API This adds an internal texture_2d constructor that can wrap an EGLImage as a CoglTexture2D. The plan is to utilize this for texture-from-pixmap support with EGL as well as creating textures from wayland buffers.
2011-05-24 17:34:10 -04:00
{
g_set_error (error,
COGL_TEXTURE_ERROR,
COGL_TEXTURE_ERROR_BAD_PARAMETER,
"Could not create a CoglTexture2D from a given EGLImage");
return NULL;
}
return _cogl_texture_2d_handle_new (tex_2d);
}
#endif /* defined (COGL_HAS_EGL_SUPPORT) && defined (EGL_KHR_image_base) */
Adds _cogl_wayland_texture_2d_new_from_buffer API This adds internal API to be able to wrap a wayland buffer as a CoglTexture2D. There is a --enable-wayland-egl-server option to decide if Cogl should support this feature and potentially any EGL based winsys could support this through the EGL_KHR_image_base and EGL_WL_bind_display extensions.
2011-05-24 20:37:56 -04:00
#ifdef COGL_HAS_WAYLAND_EGL_SERVER_SUPPORT
static CoglPixelFormat
get_buffer_format (struct wl_buffer *buffer)
{
struct wl_compositor *compositor = buffer->compositor;
struct wl_visual *visual = buffer->visual;
#if G_BYTE_ORDER == G_BIG_ENDIAN
if (visual == &compositor->premultiplied_argb_visual)
return COGL_PIXEL_FORMAT_ARGB_8888_PRE;
else if (visual == &compositor->argb_visual)
return COGL_PIXEL_FORMAT_ARGB_8888;
else if (visual == &compositor->rgb_visual)
return COGL_PIXEL_FORMAT_RGB_888;
#elif G_BYTE_ORDER == G_LITTLE_ENDIAN
if (visual == &compositor->premultiplied_argb_visual)
return COGL_PIXEL_FORMAT_BGRA_8888_PRE;
else if (visual == &compositor->argb_visual)
return COGL_PIXEL_FORMAT_BGRA_8888;
else if (visual == &compositor->rgb_visual)
return COGL_PIXEL_FORMAT_BGR_888;
#endif
else
g_return_val_if_reached (COGL_PIXEL_FORMAT_ANY);
}
CoglTexture2D *
cogl_wayland_texture_2d_new_from_buffer (CoglContext *ctx,
struct wl_buffer *buffer,
GError **error)
{
CoglPixelFormat format = get_buffer_format (buffer);
if (wl_buffer_is_shm (buffer))
{
int stride = wl_shm_buffer_get_stride (buffer);
return cogl_texture_2d_new_from_data (ctx,
buffer->width,
buffer->height,
format,
COGL_PIXEL_FORMAT_ANY,
stride,
wl_shm_buffer_get_data (buffer),
error);
}
else
{
EGLImageKHR image;
Start to reduce dependence on glib Since we've had several developers from admirable projects say they would like to use Cogl but would really prefer not to pull in gobject,gmodule and glib as extra dependencies we are investigating if we can get to the point where glib is only an optional dependency. Actually we feel like we only make minimal use of glib anyway, so it may well be quite straightforward to achieve this. This adds a --disable-glib configure option that can be used to disable features that depend on glib. Actually --disable-glib doesn't strictly disable glib at this point because it's more helpful if cogl continues to build as we make incremental progress towards this. The first use of glib that this patch tackles is the use of g_return_val_if_fail and g_return_if_fail which have been replaced with equivalent _COGL_RETURN_VAL_IF_FAIL and _COGL_RETURN_IF_FAIL macros. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-13 17:34:30 -04:00
_COGL_RETURN_VAL_IF_FAIL (_cogl_context_get_winsys (ctx) ==
Adds _cogl_wayland_texture_2d_new_from_buffer API This adds internal API to be able to wrap a wayland buffer as a CoglTexture2D. There is a --enable-wayland-egl-server option to decide if Cogl should support this feature and potentially any EGL based winsys could support this through the EGL_KHR_image_base and EGL_WL_bind_display extensions.
2011-05-24 20:37:56 -04:00
_cogl_winsys_egl_get_vtable (),
NULL);
image = _cogl_egl_create_image (ctx,
EGL_WAYLAND_BUFFER_WL,
buffer,
NULL);
return _cogl_egl_texture_2d_new_from_image (ctx,
buffer->width,
buffer->height,
format,
image,
error);
}
}
#endif /* COGL_HAS_WAYLAND_EGL_SERVER_SUPPORT */
Add _cogl_texture_2d_externally_modified _cogl_texture_2d_externally_modified is a function specific to the CoglTexture2D texture backend that should be called whenever the contents of the texture are modified without the backend knowing about it. It simply marks the mipmap tree as invalid.
2010-06-03 10:06:47 -04:00
void
_cogl_texture_2d_externally_modified (CoglHandle handle)
{
Make CoglTexture2D public as experimental API This exposes a CoglTexture2D typedef and adds the following experimental API: cogl_is_texture_2d cogl_texture_2d_new_with_size cogl_texture_2d_new_from_data cogl_texture_2d_new_from_foreign Since this is experimental API you need to define COGL_ENABLE_EXPERIMENTAL_API before including cogl.h. Note: With these new entrypoints we now expect a CoglContext pointer to be passed in, instead of assuming there is a default context. The aim is that for Cogl 2.0 we won't have a default context so this is a step in that direction.
2011-05-16 19:05:54 -04:00
if (!cogl_is_texture_2d (handle))
Add _cogl_texture_2d_externally_modified _cogl_texture_2d_externally_modified is a function specific to the CoglTexture2D texture backend that should be called whenever the contents of the texture are modified without the backend knowing about it. It simply marks the mipmap tree as invalid.
2010-06-03 10:06:47 -04:00
return;
COGL_TEXTURE_2D (handle)->mipmaps_dirty = TRUE;
}
cogl-texture-2d: Add an internal wrapper around glCopyTexSubImage2D This adds a function called _cogl_texture_2d_copy_from_framebuffer which is a simple wrapper around glCopyTexSubImage2D. It is currently specific to the texture 2D backend.
2011-02-10 13:22:27 -05:00
void
_cogl_texture_2d_copy_from_framebuffer (CoglHandle handle,
int dst_x,
int dst_y,
int src_x,
int src_y,
int width,
int height)
{
CoglTexture2D *tex_2d;
Use all core GL functions through indirect pointers cogl-ext-functions.h now contains definitions for all of the core GL and GLES functions that we would normally link to directly. All of the code has changed to access them through the cogl context pointer. The GE macro now takes an extra parameter to specify the context because the macro itself needs to make GL calls but various points in the Cogl source use different names for the context variable.
2011-07-06 16:51:00 -04:00
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
Start to reduce dependence on glib Since we've had several developers from admirable projects say they would like to use Cogl but would really prefer not to pull in gobject,gmodule and glib as extra dependencies we are investigating if we can get to the point where glib is only an optional dependency. Actually we feel like we only make minimal use of glib anyway, so it may well be quite straightforward to achieve this. This adds a --disable-glib configure option that can be used to disable features that depend on glib. Actually --disable-glib doesn't strictly disable glib at this point because it's more helpful if cogl continues to build as we make incremental progress towards this. The first use of glib that this patch tackles is the use of g_return_val_if_fail and g_return_if_fail which have been replaced with equivalent _COGL_RETURN_VAL_IF_FAIL and _COGL_RETURN_IF_FAIL macros. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-13 17:34:30 -04:00
_COGL_RETURN_IF_FAIL (cogl_is_texture_2d (handle));
cogl-texture-2d: Add an internal wrapper around glCopyTexSubImage2D This adds a function called _cogl_texture_2d_copy_from_framebuffer which is a simple wrapper around glCopyTexSubImage2D. It is currently specific to the texture 2D backend.
2011-02-10 13:22:27 -05:00
tex_2d = COGL_TEXTURE_2D (handle);
/* Make sure the current framebuffers are bound. We explicitly avoid
flushing the clip state so we can bind our own empty state */
framebuffer: expose experimental cogl_get_draw_framebuffer This renames the two internal functions _cogl_get_draw/read_buffer as cogl_get_draw_framebuffer and _cogl_get_read_framebuffer. The former is now also exposed as experimental API.
2011-03-10 16:33:31 -05:00
_cogl_framebuffer_flush_state (cogl_get_draw_framebuffer (),
_cogl_get_read_framebuffer (),
cogl-texture-2d: Add an internal wrapper around glCopyTexSubImage2D This adds a function called _cogl_texture_2d_copy_from_framebuffer which is a simple wrapper around glCopyTexSubImage2D. It is currently specific to the texture 2D backend.
2011-02-10 13:22:27 -05:00
0);
_cogl_bind_gl_texture_transient (GL_TEXTURE_2D,
tex_2d->gl_texture,
tex_2d->is_foreign);
Use all core GL functions through indirect pointers cogl-ext-functions.h now contains definitions for all of the core GL and GLES functions that we would normally link to directly. All of the code has changed to access them through the cogl context pointer. The GE macro now takes an extra parameter to specify the context because the macro itself needs to make GL calls but various points in the Cogl source use different names for the context variable.
2011-07-06 16:51:00 -04:00
ctx->glCopyTexSubImage2D (GL_TEXTURE_2D,
0, /* level */
dst_x, dst_y,
src_x, src_y,
width, height);
cogl-texture-2d: Add an internal wrapper around glCopyTexSubImage2D This adds a function called _cogl_texture_2d_copy_from_framebuffer which is a simple wrapper around glCopyTexSubImage2D. It is currently specific to the texture 2D backend.
2011-02-10 13:22:27 -05:00
tex_2d->mipmaps_dirty = TRUE;
}
cogl: improves header and coding style consistency We've had complaints that our Cogl code/headers are a bit "special" so this is a first pass at tidying things up by giving them some consistency. These changes are all consistent with how new code in Cogl is being written, but the style isn't consistently applied across all code yet. There are two parts to this patch; but since each one required a large amount of effort to maintain tidy indenting it made sense to combine the changes to reduce the time spent re indenting the same lines. The first change is to use a consistent style for declaring function prototypes in headers. Cogl headers now consistently use this style for prototypes: return_type cogl_function_name (CoglType arg0, CoglType arg1); Not everyone likes this style, but it seems that most of the currently active Cogl developers agree on it. The second change is to constrain the use of redundant glib data types in Cogl. Uses of gint, guint, gfloat, glong, gulong and gchar have all been replaced with int, unsigned int, float, long, unsigned long and char respectively. When talking about pixel data; use of guchar has been replaced with guint8, otherwise unsigned char can be used. The glib types that we continue to use for portability are gboolean, gint{8,16,32,64}, guint{8,16,32,64} and gsize. The general intention is that Cogl should look palatable to the widest range of C programmers including those outside the Gnome community so - especially for the public API - we want to minimize the number of foreign looking typedefs.
2010-02-09 20:57:32 -05:00
static int
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
_cogl_texture_2d_get_max_waste (CoglTexture *tex)
{
return -1;
}
static gboolean
_cogl_texture_2d_is_sliced (CoglTexture *tex)
{
return FALSE;
}
static gboolean
_cogl_texture_2d_can_hardware_repeat (CoglTexture *tex)
{
return TRUE;
}
static void
_cogl_texture_2d_transform_coords_to_gl (CoglTexture *tex,
float *s,
float *t)
{
/* The texture coordinates map directly so we don't need to do
anything */
}
Fix checks for out-of-bounds coordinates and repeats Add a return result from CoglTexture.transform_quad_coords_to_gl(), so that we can properly determine the nature of repeats in the face of GL_TEXTURE_RECTANGLE_ARB, where the returned coordinates are not normalized. The comment "We also work out whether any of the texture coordinates are outside the range [0.0,1.0]. We need to do this after calling transform_coords_to_gl in case the texture backend is munging the coordinates (such as in the sub texture backend)." is disregarded and removed, since it's actually the virtual coordinates that determine whether we repeat, not the GL coordinates. Warnings about disregarded layers are used in all cases where applicable, including for subtextures. http://bugzilla.openedhand.com/show_bug.cgi?id=2016 Signed-off-by: Neil Roberts <neil@linux.intel.com>
2010-03-01 16:49:04 -05:00
static CoglTransformResult
cogl: Make CoglSubTexture only work for quad rendering The sub texture backend doesn't work well as a completely general texture backend because for example when rendering with cogl_polygon it needs to be able to tranform arbitrary texture coordinates without reference to the other coordintes. This can't be done when the texture coordinates are a multiple of one because sometimes the coordinate should represent the left or top edge and sometimes it should represent the bottom or top edge. For example if the s coordinates are 0 and 1 then 1 represents the right edge but if they are 1 and 2 then 1 represents the left edge. Instead the sub-textures are now documented not to support coordinates outside the range [0,1]. The coordinates for the sub-region are now represented as integers as this helps avoid rounding issues. The region can no longer be a super-region of the texture as this simplifies the code quite a lot. There are two new texture virtual functions: transform_quad_coords_to_gl - This transforms two pairs of coordinates representing a quad. It will return FALSE if the coordinates can not be transformed. The sub texture backend uses this to detect coordinates that require repeating which causes cogl-primitives to use manual repeating. ensure_non_quad_rendering - This is used in cogl_polygon and cogl_vertex_buffer to inform the texture backend that transform_quad_to_gl is going to be used. The atlas backend migrates the texture out of the atlas when it hits this.
2010-01-18 04:22:04 -05:00
_cogl_texture_2d_transform_quad_coords_to_gl (CoglTexture *tex,
float *coords)
{
/* The texture coordinates map directly so we don't need to do
Fix checks for out-of-bounds coordinates and repeats Add a return result from CoglTexture.transform_quad_coords_to_gl(), so that we can properly determine the nature of repeats in the face of GL_TEXTURE_RECTANGLE_ARB, where the returned coordinates are not normalized. The comment "We also work out whether any of the texture coordinates are outside the range [0.0,1.0]. We need to do this after calling transform_coords_to_gl in case the texture backend is munging the coordinates (such as in the sub texture backend)." is disregarded and removed, since it's actually the virtual coordinates that determine whether we repeat, not the GL coordinates. Warnings about disregarded layers are used in all cases where applicable, including for subtextures. http://bugzilla.openedhand.com/show_bug.cgi?id=2016 Signed-off-by: Neil Roberts <neil@linux.intel.com>
2010-03-01 16:49:04 -05:00
anything other than check for repeats */
gboolean need_repeat = FALSE;
int i;
for (i = 0; i < 4; i++)
if (coords[i] < 0.0f || coords[i] > 1.0f)
need_repeat = TRUE;
return (need_repeat ? COGL_TRANSFORM_HARDWARE_REPEAT
: COGL_TRANSFORM_NO_REPEAT);
cogl: Make CoglSubTexture only work for quad rendering The sub texture backend doesn't work well as a completely general texture backend because for example when rendering with cogl_polygon it needs to be able to tranform arbitrary texture coordinates without reference to the other coordintes. This can't be done when the texture coordinates are a multiple of one because sometimes the coordinate should represent the left or top edge and sometimes it should represent the bottom or top edge. For example if the s coordinates are 0 and 1 then 1 represents the right edge but if they are 1 and 2 then 1 represents the left edge. Instead the sub-textures are now documented not to support coordinates outside the range [0,1]. The coordinates for the sub-region are now represented as integers as this helps avoid rounding issues. The region can no longer be a super-region of the texture as this simplifies the code quite a lot. There are two new texture virtual functions: transform_quad_coords_to_gl - This transforms two pairs of coordinates representing a quad. It will return FALSE if the coordinates can not be transformed. The sub texture backend uses this to detect coordinates that require repeating which causes cogl-primitives to use manual repeating. ensure_non_quad_rendering - This is used in cogl_polygon and cogl_vertex_buffer to inform the texture backend that transform_quad_to_gl is going to be used. The atlas backend migrates the texture out of the atlas when it hits this.
2010-01-18 04:22:04 -05:00
}
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
static gboolean
_cogl_texture_2d_get_gl_texture (CoglTexture *tex,
GLuint *out_gl_handle,
GLenum *out_gl_target)
{
CoglTexture2D *tex_2d = COGL_TEXTURE_2D (tex);
if (out_gl_handle)
*out_gl_handle = tex_2d->gl_texture;
if (out_gl_target)
*out_gl_target = GL_TEXTURE_2D;
return TRUE;
}
static void
_cogl_texture_2d_set_filters (CoglTexture *tex,
GLenum min_filter,
GLenum mag_filter)
{
CoglTexture2D *tex_2d = COGL_TEXTURE_2D (tex);
Use all core GL functions through indirect pointers cogl-ext-functions.h now contains definitions for all of the core GL and GLES functions that we would normally link to directly. All of the code has changed to access them through the cogl context pointer. The GE macro now takes an extra parameter to specify the context because the macro itself needs to make GL calls but various points in the Cogl source use different names for the context variable.
2011-07-06 16:51:00 -04:00
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
if (min_filter == tex_2d->min_filter
&& mag_filter == tex_2d->mag_filter)
return;
/* Store new values */
tex_2d->min_filter = min_filter;
tex_2d->mag_filter = mag_filter;
/* Apply new filters to the texture */
material: Avoid redundant glBindTexture calls This adds a _cogl_bind_gl_texture_transient function that should be used instead of glBindTexture so we can have a consistent cache of the textures bound to each texture unit so we can avoid some redundant binding.
2010-04-26 05:01:43 -04:00
_cogl_bind_gl_texture_transient (GL_TEXTURE_2D,
tex_2d->gl_texture,
Support foreign textures in the texture-2d and rectangle backends This adds two new internal functions to create a foreign texture for the texture 2d and rectangle backends. cogl_texture_new_from_foreign will now use one of these backends directly if there is no waste instead of always using the sliced texture backend.
2010-10-04 10:27:38 -04:00
tex_2d->is_foreign);
Use all core GL functions through indirect pointers cogl-ext-functions.h now contains definitions for all of the core GL and GLES functions that we would normally link to directly. All of the code has changed to access them through the cogl context pointer. The GE macro now takes an extra parameter to specify the context because the macro itself needs to make GL calls but various points in the Cogl source use different names for the context variable.
2011-07-06 16:51:00 -04:00
GE( ctx, glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, mag_filter) );
GE( ctx, glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, min_filter) );
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
}
static void
cogl-texture: Replace the ensure_mipmaps virtual with pre_paint Instead of the ensure_mipmaps virtual that is only called whenever the texture is about to be rendered with a min filter that needs the mipmap, there is now a pre_paint virtual that is always called when the texture is about to be painted in any way. It has a flags parameter which is used to specify whether the mipmap will be needed. This is useful for CoglTexturePixmapX11 because it needs to do stuff before painting that is unrelated to mipmapping.
2010-06-09 12:39:59 -04:00
_cogl_texture_2d_pre_paint (CoglTexture *tex, CoglTexturePrePaintFlags flags)
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
{
CoglTexture2D *tex_2d = COGL_TEXTURE_2D (tex);
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
/* Only update if the mipmaps are dirty */
cogl-texture: Replace the ensure_mipmaps virtual with pre_paint Instead of the ensure_mipmaps virtual that is only called whenever the texture is about to be rendered with a min filter that needs the mipmap, there is now a pre_paint virtual that is always called when the texture is about to be painted in any way. It has a flags parameter which is used to specify whether the mipmap will be needed. This is useful for CoglTexturePixmapX11 because it needs to do stuff before painting that is unrelated to mipmapping.
2010-06-09 12:39:59 -04:00
if ((flags & COGL_TEXTURE_NEEDS_MIPMAP) &&
tex_2d->auto_mipmap && tex_2d->mipmaps_dirty)
{
_cogl_bind_gl_texture_transient (GL_TEXTURE_2D,
tex_2d->gl_texture,
Support foreign textures in the texture-2d and rectangle backends This adds two new internal functions to create a foreign texture for the texture 2d and rectangle backends. cogl_texture_new_from_foreign will now use one of these backends directly if there is no waste instead of always using the sliced texture backend.
2010-10-04 10:27:38 -04:00
tex_2d->is_foreign);
Add a GL_GENERATE_MIPMAP fallback to the texture 2d and 3d backends The CoglTexture2DSliced backend has a fallback for when the framebuffer extension is missing so it's not possible to use glGenerateMipmap. This involves keeping a copy of the upper-left pixel of the tex image so that we can temporarily enable GL_GENERATE_MIPMAP on the texture object and do a sub texture update by reuploading the contents of the first pixel. This patch copies that mechanism to the 2D and 3D backends. The CoglTexturePixel structure which was previously internal to the sliced backend has been moved to cogl-texture-private.h so that it can be shared.
2010-07-13 13:41:01 -04:00
/* glGenerateMipmap is defined in the FBO extension. If it's not
available we'll fallback to temporarily enabling
GL_GENERATE_MIPMAP and reuploading the first pixel */
features: Support more than 32 features! Currently features are represented as bits in a 32bit mask so we obviously can't have more than 32 features with that approach. The new approach is to use the COGL_FLAGS_ macros which lets us handle bitmasks without a size limit and we change the public api to accept individual feature enums instead of a mask. This way there is no limit on the number of features we can add to Cogl. Instead of using cogl_features_available() there is a new cogl_has_feature() function and for checking multiple features there is cogl_has_features() which takes a zero terminated vararg list of features. In addition to being able to check for individual features this also adds a way to query all the features currently available via cogl_foreach_feature() which will call a callback for each feature. Since the new functions take an explicit context pointer there is also no longer any ambiguity over when users can first start to query features. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-12 17:31:12 -04:00
if (cogl_has_feature (ctx, COGL_FEATURE_ID_OFFSCREEN))
Move the cogl texture driver functions to a vtable The texture driver functions are now accessed through a vtable pointed to by a struct in the CoglContext so that eventually it will be possible to compile both the GL and GLES texture drivers into a single binary and then select between them at runtime.
2011-07-07 07:48:24 -04:00
ctx->texture_driver->gl_generate_mipmaps (GL_TEXTURE_2D);
Dynamically load the GL or GLES library The GL or GLES library is now dynamically loaded by the CoglRenderer so that it can choose between GL, GLES1 and GLES2 at runtime. The library is loaded by the renderer because it needs to be done before calling eglInitialize. There is a new environment variable called COGL_DRIVER to choose between gl, gles1 or gles2. The #ifdefs for HAVE_COGL_GL, HAVE_COGL_GLES and HAVE_COGL_GLES2 have been changed so that they don't assume the ifdefs are mutually exclusive. They haven't been removed entirely so that it's possible to compile the GLES backends without the the enums from the GL headers. When using GLX the winsys additionally dynamically loads libGL because that also contains the GLX API. It can't be linked in directly because that would probably conflict with the GLES API if the EGL is selected. When compiling with EGL support the library links directly to libEGL because it doesn't contain any GL API so it shouldn't have any conflicts. When building for WGL or OSX Cogl still directly links against the GL API so there is a #define in config.h so that Cogl won't try to dlopen the library. Cogl-pango previously had a #ifdef to detect when the GL backend is used so that it can sneakily pass GL_QUADS to cogl_vertex_buffer_draw. This is now changed so that it queries the CoglContext for the backend. However to get this to work Cogl now needs to export the _cogl_context_get_default symbol and cogl-pango needs some extra -I flags to so that it can include cogl-context-private.h
2011-07-07 15:44:56 -04:00
#if defined(HAVE_COGL_GLES) || defined(HAVE_COGL_GL)
Add a GL_GENERATE_MIPMAP fallback to the texture 2d and 3d backends The CoglTexture2DSliced backend has a fallback for when the framebuffer extension is missing so it's not possible to use glGenerateMipmap. This involves keeping a copy of the upper-left pixel of the tex image so that we can temporarily enable GL_GENERATE_MIPMAP on the texture object and do a sub texture update by reuploading the contents of the first pixel. This patch copies that mechanism to the 2D and 3D backends. The CoglTexturePixel structure which was previously internal to the sliced backend has been moved to cogl-texture-private.h so that it can be shared.
2010-07-13 13:41:01 -04:00
else
{
Use all core GL functions through indirect pointers cogl-ext-functions.h now contains definitions for all of the core GL and GLES functions that we would normally link to directly. All of the code has changed to access them through the cogl context pointer. The GE macro now takes an extra parameter to specify the context because the macro itself needs to make GL calls but various points in the Cogl source use different names for the context variable.
2011-07-06 16:51:00 -04:00
GE( ctx, glTexParameteri (GL_TEXTURE_2D,
GL_GENERATE_MIPMAP,
GL_TRUE) );
GE( ctx, glTexSubImage2D (GL_TEXTURE_2D, 0, 0, 0, 1, 1,
tex_2d->first_pixel.gl_format,
tex_2d->first_pixel.gl_type,
tex_2d->first_pixel.data) );
GE( ctx, glTexParameteri (GL_TEXTURE_2D,
GL_GENERATE_MIPMAP,
GL_FALSE) );
Add a GL_GENERATE_MIPMAP fallback to the texture 2d and 3d backends The CoglTexture2DSliced backend has a fallback for when the framebuffer extension is missing so it's not possible to use glGenerateMipmap. This involves keeping a copy of the upper-left pixel of the tex image so that we can temporarily enable GL_GENERATE_MIPMAP on the texture object and do a sub texture update by reuploading the contents of the first pixel. This patch copies that mechanism to the 2D and 3D backends. The CoglTexturePixel structure which was previously internal to the sliced backend has been moved to cogl-texture-private.h so that it can be shared.
2010-07-13 13:41:01 -04:00
}
Remove the GLES2 wrapper The GLES2 wrapper is no longer needed because the shader generation is done within the GLSL fragend and vertend and any functions that are different for GLES2 are now guarded by #ifdefs.
2010-12-05 13:02:05 -05:00
#endif
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
cogl-texture: Replace the ensure_mipmaps virtual with pre_paint Instead of the ensure_mipmaps virtual that is only called whenever the texture is about to be rendered with a min filter that needs the mipmap, there is now a pre_paint virtual that is always called when the texture is about to be painted in any way. It has a flags parameter which is used to specify whether the mipmap will be needed. This is useful for CoglTexturePixmapX11 because it needs to do stuff before painting that is unrelated to mipmapping.
2010-06-09 12:39:59 -04:00
tex_2d->mipmaps_dirty = FALSE;
}
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
}
cogl: Make CoglSubTexture only work for quad rendering The sub texture backend doesn't work well as a completely general texture backend because for example when rendering with cogl_polygon it needs to be able to tranform arbitrary texture coordinates without reference to the other coordintes. This can't be done when the texture coordinates are a multiple of one because sometimes the coordinate should represent the left or top edge and sometimes it should represent the bottom or top edge. For example if the s coordinates are 0 and 1 then 1 represents the right edge but if they are 1 and 2 then 1 represents the left edge. Instead the sub-textures are now documented not to support coordinates outside the range [0,1]. The coordinates for the sub-region are now represented as integers as this helps avoid rounding issues. The region can no longer be a super-region of the texture as this simplifies the code quite a lot. There are two new texture virtual functions: transform_quad_coords_to_gl - This transforms two pairs of coordinates representing a quad. It will return FALSE if the coordinates can not be transformed. The sub texture backend uses this to detect coordinates that require repeating which causes cogl-primitives to use manual repeating. ensure_non_quad_rendering - This is used in cogl_polygon and cogl_vertex_buffer to inform the texture backend that transform_quad_to_gl is going to be used. The atlas backend migrates the texture out of the atlas when it hits this.
2010-01-18 04:22:04 -05:00
static void
_cogl_texture_2d_ensure_non_quad_rendering (CoglTexture *tex)
{
/* Nothing needs to be done */
}
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
static gboolean
_cogl_texture_2d_set_region (CoglTexture *tex,
int src_x,
int src_y,
int dst_x,
int dst_y,
unsigned int dst_width,
unsigned int dst_height,
cogl-texture: Share the common code in the set_region virtual There was a lot of common code that was copied to all of the backends to convert the data to a suitable format and wrap it into a CoglBitmap so that it can be passed to _cogl_texture_driver_upload_subregion_to_gl. This patch moves the common code to cogl-texture.c so that the virtual just takes a CoglBitmap that is already in the right format.
2010-07-08 10:15:22 -04:00
CoglBitmap *bmp)
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
{
cogl-texture: Share the common code in the set_region virtual There was a lot of common code that was copied to all of the backends to convert the data to a suitable format and wrap it into a CoglBitmap so that it can be passed to _cogl_texture_driver_upload_subregion_to_gl. This patch moves the common code to cogl-texture.c so that the virtual just takes a CoglBitmap that is already in the right format.
2010-07-08 10:15:22 -04:00
CoglTexture2D *tex_2d = COGL_TEXTURE_2D (tex);
GLenum gl_format;
GLenum gl_type;
cogl-bitmap: Encapsulate the CoglBitmap even internally The CoglBitmap struct is now only defined within cogl-bitmap.c so that all of its members can now only be accessed with accessor functions. To get to the data pointer for the bitmap image you must first call _cogl_bitmap_map and later call _cogl_bitmap_unmap. The map function takes the same arguments as cogl_pixel_array_map so that eventually we can make a bitmap optionally internally divert to a pixel array. There is a _cogl_bitmap_new_from_data function which constructs a new bitmap object and takes ownership of the data pointer. The function gets passed a destroy callback which gets called when the bitmap is freed. This is similar to how gdk_pixbuf_new_from_data works. Alternatively NULL can be passed for the destroy function which means that the caller will manage the life of the pointer (but must guarantee that it stays alive at least until the bitmap is freed). This mechanism is used instead of the old approach of creating a CoglBitmap struct on the stack and manually filling in the members. It could also later be used to create a CoglBitmap that owns a GdkPixbuf ref so that we don't necessarily have to copy the GdkPixbuf data when converting to a bitmap. There is also _cogl_bitmap_new_shared. This creates a bitmap using a reference to another CoglBitmap for the data. This is a bit of a hack but it is needed by the atlas texture backend which wants to divert the set_region virtual to another texture but it needs to override the format of the bitmap to ignore the premult flag.
2010-07-07 13:44:16 -04:00
guint8 *data;
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
Move the cogl texture driver functions to a vtable The texture driver functions are now accessed through a vtable pointed to by a struct in the CoglContext so that eventually it will be possible to compile both the GL and GLES texture drivers into a single binary and then select between them at runtime.
2011-07-07 07:48:24 -04:00
_COGL_GET_CONTEXT (ctx, FALSE);
texture: Call _cogl_texture_prepare_for_upload in set_region impl Instead of calling _cogl_texutre_prepare_for_upload in cogl_texture_set_region_from_bitmap the call is now deferred to the implementation of the virtual for set_region. This is needed if the texture backend is using a different format for the actual GL texture than what is reported by cogl_texture_get_format. This happens for example with atlas textures which report the original internal format specified when the texture was created but actually always store the data in an RGBA texture. Also when creating an atlas texture from a bitmap it was preparing the bitmap to be uploaded to the original format instead of the format of the actual texture used for the atlas. Then it was using cogl_texture_set_region_from_bitmap to upload the 5 pieces to make the copies of the edge pixels. This would end up converting the image to the actual format 5 times. The atlas textures have now been changed to prepare the bitmap for the right format. https://bugzilla.gnome.org/show_bug.cgi?id=657840 Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-08-31 12:22:20 -04:00
bmp = _cogl_texture_prepare_for_upload (bmp,
cogl_texture_get_format (tex),
NULL,
NULL,
&gl_format,
&gl_type);
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
Add a GL_GENERATE_MIPMAP fallback to the texture 2d and 3d backends The CoglTexture2DSliced backend has a fallback for when the framebuffer extension is missing so it's not possible to use glGenerateMipmap. This involves keeping a copy of the upper-left pixel of the tex image so that we can temporarily enable GL_GENERATE_MIPMAP on the texture object and do a sub texture update by reuploading the contents of the first pixel. This patch copies that mechanism to the 2D and 3D backends. The CoglTexturePixel structure which was previously internal to the sliced backend has been moved to cogl-texture-private.h so that it can be shared.
2010-07-13 13:41:01 -04:00
/* If this touches the first pixel then we'll update our copy */
cogl-bitmap: Encapsulate the CoglBitmap even internally The CoglBitmap struct is now only defined within cogl-bitmap.c so that all of its members can now only be accessed with accessor functions. To get to the data pointer for the bitmap image you must first call _cogl_bitmap_map and later call _cogl_bitmap_unmap. The map function takes the same arguments as cogl_pixel_array_map so that eventually we can make a bitmap optionally internally divert to a pixel array. There is a _cogl_bitmap_new_from_data function which constructs a new bitmap object and takes ownership of the data pointer. The function gets passed a destroy callback which gets called when the bitmap is freed. This is similar to how gdk_pixbuf_new_from_data works. Alternatively NULL can be passed for the destroy function which means that the caller will manage the life of the pointer (but must guarantee that it stays alive at least until the bitmap is freed). This mechanism is used instead of the old approach of creating a CoglBitmap struct on the stack and manually filling in the members. It could also later be used to create a CoglBitmap that owns a GdkPixbuf ref so that we don't necessarily have to copy the GdkPixbuf data when converting to a bitmap. There is also _cogl_bitmap_new_shared. This creates a bitmap using a reference to another CoglBitmap for the data. This is a bit of a hack but it is needed by the atlas texture backend which wants to divert the set_region virtual to another texture but it needs to override the format of the bitmap to ignore the premult flag.
2010-07-07 13:44:16 -04:00
if (dst_x == 0 && dst_y == 0 &&
features: Support more than 32 features! Currently features are represented as bits in a 32bit mask so we obviously can't have more than 32 features with that approach. The new approach is to use the COGL_FLAGS_ macros which lets us handle bitmasks without a size limit and we change the public api to accept individual feature enums instead of a mask. This way there is no limit on the number of features we can add to Cogl. Instead of using cogl_features_available() there is a new cogl_has_feature() function and for checking multiple features there is cogl_has_features() which takes a zero terminated vararg list of features. In addition to being able to check for individual features this also adds a way to query all the features currently available via cogl_foreach_feature() which will call a callback for each feature. Since the new functions take an explicit context pointer there is also no longer any ambiguity over when users can first start to query features. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-12 17:31:12 -04:00
!cogl_has_feature (ctx, COGL_FEATURE_ID_OFFSCREEN) &&
cogl-bitmap: Encapsulate the CoglBitmap even internally The CoglBitmap struct is now only defined within cogl-bitmap.c so that all of its members can now only be accessed with accessor functions. To get to the data pointer for the bitmap image you must first call _cogl_bitmap_map and later call _cogl_bitmap_unmap. The map function takes the same arguments as cogl_pixel_array_map so that eventually we can make a bitmap optionally internally divert to a pixel array. There is a _cogl_bitmap_new_from_data function which constructs a new bitmap object and takes ownership of the data pointer. The function gets passed a destroy callback which gets called when the bitmap is freed. This is similar to how gdk_pixbuf_new_from_data works. Alternatively NULL can be passed for the destroy function which means that the caller will manage the life of the pointer (but must guarantee that it stays alive at least until the bitmap is freed). This mechanism is used instead of the old approach of creating a CoglBitmap struct on the stack and manually filling in the members. It could also later be used to create a CoglBitmap that owns a GdkPixbuf ref so that we don't necessarily have to copy the GdkPixbuf data when converting to a bitmap. There is also _cogl_bitmap_new_shared. This creates a bitmap using a reference to another CoglBitmap for the data. This is a bit of a hack but it is needed by the atlas texture backend which wants to divert the set_region virtual to another texture but it needs to override the format of the bitmap to ignore the premult flag.
2010-07-07 13:44:16 -04:00
(data = _cogl_bitmap_map (bmp, COGL_BUFFER_ACCESS_READ, 0)))
Add a GL_GENERATE_MIPMAP fallback to the texture 2d and 3d backends The CoglTexture2DSliced backend has a fallback for when the framebuffer extension is missing so it's not possible to use glGenerateMipmap. This involves keeping a copy of the upper-left pixel of the tex image so that we can temporarily enable GL_GENERATE_MIPMAP on the texture object and do a sub texture update by reuploading the contents of the first pixel. This patch copies that mechanism to the 2D and 3D backends. The CoglTexturePixel structure which was previously internal to the sliced backend has been moved to cogl-texture-private.h so that it can be shared.
2010-07-13 13:41:01 -04:00
{
cogl-bitmap: Encapsulate the CoglBitmap even internally The CoglBitmap struct is now only defined within cogl-bitmap.c so that all of its members can now only be accessed with accessor functions. To get to the data pointer for the bitmap image you must first call _cogl_bitmap_map and later call _cogl_bitmap_unmap. The map function takes the same arguments as cogl_pixel_array_map so that eventually we can make a bitmap optionally internally divert to a pixel array. There is a _cogl_bitmap_new_from_data function which constructs a new bitmap object and takes ownership of the data pointer. The function gets passed a destroy callback which gets called when the bitmap is freed. This is similar to how gdk_pixbuf_new_from_data works. Alternatively NULL can be passed for the destroy function which means that the caller will manage the life of the pointer (but must guarantee that it stays alive at least until the bitmap is freed). This mechanism is used instead of the old approach of creating a CoglBitmap struct on the stack and manually filling in the members. It could also later be used to create a CoglBitmap that owns a GdkPixbuf ref so that we don't necessarily have to copy the GdkPixbuf data when converting to a bitmap. There is also _cogl_bitmap_new_shared. This creates a bitmap using a reference to another CoglBitmap for the data. This is a bit of a hack but it is needed by the atlas texture backend which wants to divert the set_region virtual to another texture but it needs to override the format of the bitmap to ignore the premult flag.
2010-07-07 13:44:16 -04:00
CoglPixelFormat bpp =
_cogl_get_format_bpp (_cogl_bitmap_get_format (bmp));
Add a GL_GENERATE_MIPMAP fallback to the texture 2d and 3d backends The CoglTexture2DSliced backend has a fallback for when the framebuffer extension is missing so it's not possible to use glGenerateMipmap. This involves keeping a copy of the upper-left pixel of the tex image so that we can temporarily enable GL_GENERATE_MIPMAP on the texture object and do a sub texture update by reuploading the contents of the first pixel. This patch copies that mechanism to the 2D and 3D backends. The CoglTexturePixel structure which was previously internal to the sliced backend has been moved to cogl-texture-private.h so that it can be shared.
2010-07-13 13:41:01 -04:00
tex_2d->first_pixel.gl_format = gl_format;
tex_2d->first_pixel.gl_type = gl_type;
memcpy (tex_2d->first_pixel.data,
cogl-bitmap: Encapsulate the CoglBitmap even internally The CoglBitmap struct is now only defined within cogl-bitmap.c so that all of its members can now only be accessed with accessor functions. To get to the data pointer for the bitmap image you must first call _cogl_bitmap_map and later call _cogl_bitmap_unmap. The map function takes the same arguments as cogl_pixel_array_map so that eventually we can make a bitmap optionally internally divert to a pixel array. There is a _cogl_bitmap_new_from_data function which constructs a new bitmap object and takes ownership of the data pointer. The function gets passed a destroy callback which gets called when the bitmap is freed. This is similar to how gdk_pixbuf_new_from_data works. Alternatively NULL can be passed for the destroy function which means that the caller will manage the life of the pointer (but must guarantee that it stays alive at least until the bitmap is freed). This mechanism is used instead of the old approach of creating a CoglBitmap struct on the stack and manually filling in the members. It could also later be used to create a CoglBitmap that owns a GdkPixbuf ref so that we don't necessarily have to copy the GdkPixbuf data when converting to a bitmap. There is also _cogl_bitmap_new_shared. This creates a bitmap using a reference to another CoglBitmap for the data. This is a bit of a hack but it is needed by the atlas texture backend which wants to divert the set_region virtual to another texture but it needs to override the format of the bitmap to ignore the premult flag.
2010-07-07 13:44:16 -04:00
data + _cogl_bitmap_get_rowstride (bmp) * src_y + bpp * src_x,
Add a GL_GENERATE_MIPMAP fallback to the texture 2d and 3d backends The CoglTexture2DSliced backend has a fallback for when the framebuffer extension is missing so it's not possible to use glGenerateMipmap. This involves keeping a copy of the upper-left pixel of the tex image so that we can temporarily enable GL_GENERATE_MIPMAP on the texture object and do a sub texture update by reuploading the contents of the first pixel. This patch copies that mechanism to the 2D and 3D backends. The CoglTexturePixel structure which was previously internal to the sliced backend has been moved to cogl-texture-private.h so that it can be shared.
2010-07-13 13:41:01 -04:00
bpp);
cogl-bitmap: Encapsulate the CoglBitmap even internally The CoglBitmap struct is now only defined within cogl-bitmap.c so that all of its members can now only be accessed with accessor functions. To get to the data pointer for the bitmap image you must first call _cogl_bitmap_map and later call _cogl_bitmap_unmap. The map function takes the same arguments as cogl_pixel_array_map so that eventually we can make a bitmap optionally internally divert to a pixel array. There is a _cogl_bitmap_new_from_data function which constructs a new bitmap object and takes ownership of the data pointer. The function gets passed a destroy callback which gets called when the bitmap is freed. This is similar to how gdk_pixbuf_new_from_data works. Alternatively NULL can be passed for the destroy function which means that the caller will manage the life of the pointer (but must guarantee that it stays alive at least until the bitmap is freed). This mechanism is used instead of the old approach of creating a CoglBitmap struct on the stack and manually filling in the members. It could also later be used to create a CoglBitmap that owns a GdkPixbuf ref so that we don't necessarily have to copy the GdkPixbuf data when converting to a bitmap. There is also _cogl_bitmap_new_shared. This creates a bitmap using a reference to another CoglBitmap for the data. This is a bit of a hack but it is needed by the atlas texture backend which wants to divert the set_region virtual to another texture but it needs to override the format of the bitmap to ignore the premult flag.
2010-07-07 13:44:16 -04:00
_cogl_bitmap_unmap (bmp);
Add a GL_GENERATE_MIPMAP fallback to the texture 2d and 3d backends The CoglTexture2DSliced backend has a fallback for when the framebuffer extension is missing so it's not possible to use glGenerateMipmap. This involves keeping a copy of the upper-left pixel of the tex image so that we can temporarily enable GL_GENERATE_MIPMAP on the texture object and do a sub texture update by reuploading the contents of the first pixel. This patch copies that mechanism to the 2D and 3D backends. The CoglTexturePixel structure which was previously internal to the sliced backend has been moved to cogl-texture-private.h so that it can be shared.
2010-07-13 13:41:01 -04:00
}
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
/* Send data to GL */
Move the cogl texture driver functions to a vtable The texture driver functions are now accessed through a vtable pointed to by a struct in the CoglContext so that eventually it will be possible to compile both the GL and GLES texture drivers into a single binary and then select between them at runtime.
2011-07-07 07:48:24 -04:00
ctx->texture_driver->upload_subregion_to_gl (GL_TEXTURE_2D,
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
tex_2d->gl_texture,
material: Avoid redundant glBindTexture calls This adds a _cogl_bind_gl_texture_transient function that should be used instead of glBindTexture so we can have a consistent cache of the textures bound to each texture unit so we can avoid some redundant binding.
2010-04-26 05:01:43 -04:00
FALSE,
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
src_x, src_y,
dst_x, dst_y,
dst_width, dst_height,
cogl-texture: Share the common code in the set_region virtual There was a lot of common code that was copied to all of the backends to convert the data to a suitable format and wrap it into a CoglBitmap so that it can be passed to _cogl_texture_driver_upload_subregion_to_gl. This patch moves the common code to cogl-texture.c so that the virtual just takes a CoglBitmap that is already in the right format.
2010-07-08 10:15:22 -04:00
bmp,
gl_format,
gl_type);
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
cogl-texture-2d: Regenerate the mipmaps when the texture is modified When the texture is modified by cogl_texture_set_region, it wasn't setting mipmaps_dirty so it would never update the mipmaps.
2010-05-28 13:12:53 -04:00
tex_2d->mipmaps_dirty = TRUE;
texture: Call _cogl_texture_prepare_for_upload in set_region impl Instead of calling _cogl_texutre_prepare_for_upload in cogl_texture_set_region_from_bitmap the call is now deferred to the implementation of the virtual for set_region. This is needed if the texture backend is using a different format for the actual GL texture than what is reported by cogl_texture_get_format. This happens for example with atlas textures which report the original internal format specified when the texture was created but actually always store the data in an RGBA texture. Also when creating an atlas texture from a bitmap it was preparing the bitmap to be uploaded to the original format instead of the format of the actual texture used for the atlas. Then it was using cogl_texture_set_region_from_bitmap to upload the 5 pieces to make the copies of the edge pixels. This would end up converting the image to the actual format 5 times. The atlas textures have now been changed to prepare the bitmap for the right format. https://bugzilla.gnome.org/show_bug.cgi?id=657840 Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-08-31 12:22:20 -04:00
cogl_object_unref (bmp);
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
return TRUE;
}
cogl-texture: Share the common code in the get_data virtual Previously cogl_texture_get_data would pretty much directly pass on to the get_data texture virtual function. This ended up with a lot of common code that was copied to all of the backends. For example, the method is expected to return the required data size if the data pointer is NULL and to calculate its own rowstride if the rowstride is 0. Also it needs to convert the downloaded data if GL can't support that format directly. This patch moves the common code to cogl-texture.c so the virtual is always called with a format that can be downloaded directly by GL and with a valid rowstride. If the download fails then the virtual can return FALSE in which case cogl-texture will use the draw and read fallback.
2010-07-08 08:54:37 -04:00
static gboolean
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
_cogl_texture_2d_get_data (CoglTexture *tex,
CoglPixelFormat format,
unsigned int rowstride,
guint8 *data)
{
CoglTexture2D *tex_2d = COGL_TEXTURE_2D (tex);
cogl: improves header and coding style consistency We've had complaints that our Cogl code/headers are a bit "special" so this is a first pass at tidying things up by giving them some consistency. These changes are all consistent with how new code in Cogl is being written, but the style isn't consistently applied across all code yet. There are two parts to this patch; but since each one required a large amount of effort to maintain tidy indenting it made sense to combine the changes to reduce the time spent re indenting the same lines. The first change is to use a consistent style for declaring function prototypes in headers. Cogl headers now consistently use this style for prototypes: return_type cogl_function_name (CoglType arg0, CoglType arg1); Not everyone likes this style, but it seems that most of the currently active Cogl developers agree on it. The second change is to constrain the use of redundant glib data types in Cogl. Uses of gint, guint, gfloat, glong, gulong and gchar have all been replaced with int, unsigned int, float, long, unsigned long and char respectively. When talking about pixel data; use of guchar has been replaced with guint8, otherwise unsigned char can be used. The glib types that we continue to use for portability are gboolean, gint{8,16,32,64}, guint{8,16,32,64} and gsize. The general intention is that Cogl should look palatable to the widest range of C programmers including those outside the Gnome community so - especially for the public API - we want to minimize the number of foreign looking typedefs.
2010-02-09 20:57:32 -05:00
int bpp;
cogl-texture: Share the common code in the get_data virtual Previously cogl_texture_get_data would pretty much directly pass on to the get_data texture virtual function. This ended up with a lot of common code that was copied to all of the backends. For example, the method is expected to return the required data size if the data pointer is NULL and to calculate its own rowstride if the rowstride is 0. Also it needs to convert the downloaded data if GL can't support that format directly. This patch moves the common code to cogl-texture.c so the virtual is always called with a format that can be downloaded directly by GL and with a valid rowstride. If the download fails then the virtual can return FALSE in which case cogl-texture will use the draw and read fallback.
2010-07-08 08:54:37 -04:00
GLenum gl_format;
GLenum gl_type;
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
Move the cogl texture driver functions to a vtable The texture driver functions are now accessed through a vtable pointed to by a struct in the CoglContext so that eventually it will be possible to compile both the GL and GLES texture drivers into a single binary and then select between them at runtime.
2011-07-07 07:48:24 -04:00
_COGL_GET_CONTEXT (ctx, FALSE);
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
bpp = _cogl_get_format_bpp (format);
Move the cogl texture driver functions to a vtable The texture driver functions are now accessed through a vtable pointed to by a struct in the CoglContext so that eventually it will be possible to compile both the GL and GLES texture drivers into a single binary and then select between them at runtime.
2011-07-07 07:48:24 -04:00
ctx->texture_driver->pixel_format_to_gl (format,
NULL, /* internal format */
&gl_format,
&gl_type);
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
Move the cogl texture driver functions to a vtable The texture driver functions are now accessed through a vtable pointed to by a struct in the CoglContext so that eventually it will be possible to compile both the GL and GLES texture drivers into a single binary and then select between them at runtime.
2011-07-07 07:48:24 -04:00
ctx->texture_driver->prep_gl_for_pixels_download (rowstride, bpp);
Set pixel store parameters before calling glGetTexImage We need to set up the rowstride and alignment properly in CoglTexture2D before reading texture data. http://bugzilla.openedhand.com/show_bug.cgi?id=2036 Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-03-17 15:39:55 -04:00
material: Avoid redundant glBindTexture calls This adds a _cogl_bind_gl_texture_transient function that should be used instead of glBindTexture so we can have a consistent cache of the textures bound to each texture unit so we can avoid some redundant binding.
2010-04-26 05:01:43 -04:00
_cogl_bind_gl_texture_transient (GL_TEXTURE_2D,
tex_2d->gl_texture,
Support foreign textures in the texture-2d and rectangle backends This adds two new internal functions to create a foreign texture for the texture 2d and rectangle backends. cogl_texture_new_from_foreign will now use one of these backends directly if there is no waste instead of always using the sliced texture backend.
2010-10-04 10:27:38 -04:00
tex_2d->is_foreign);
Move the cogl texture driver functions to a vtable The texture driver functions are now accessed through a vtable pointed to by a struct in the CoglContext so that eventually it will be possible to compile both the GL and GLES texture drivers into a single binary and then select between them at runtime.
2011-07-07 07:48:24 -04:00
return ctx->texture_driver->gl_get_tex_image (GL_TEXTURE_2D,
cogl-texture: Share the common code in the get_data virtual Previously cogl_texture_get_data would pretty much directly pass on to the get_data texture virtual function. This ended up with a lot of common code that was copied to all of the backends. For example, the method is expected to return the required data size if the data pointer is NULL and to calculate its own rowstride if the rowstride is 0. Also it needs to convert the downloaded data if GL can't support that format directly. This patch moves the common code to cogl-texture.c so the virtual is always called with a format that can be downloaded directly by GL and with a valid rowstride. If the download fails then the virtual can return FALSE in which case cogl-texture will use the draw and read fallback.
2010-07-08 08:54:37 -04:00
gl_format,
gl_type,
data);
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
}
static CoglPixelFormat
_cogl_texture_2d_get_format (CoglTexture *tex)
{
return COGL_TEXTURE_2D (tex)->format;
}
static GLenum
_cogl_texture_2d_get_gl_format (CoglTexture *tex)
{
return COGL_TEXTURE_2D (tex)->gl_format;
}
cogl: improves header and coding style consistency We've had complaints that our Cogl code/headers are a bit "special" so this is a first pass at tidying things up by giving them some consistency. These changes are all consistent with how new code in Cogl is being written, but the style isn't consistently applied across all code yet. There are two parts to this patch; but since each one required a large amount of effort to maintain tidy indenting it made sense to combine the changes to reduce the time spent re indenting the same lines. The first change is to use a consistent style for declaring function prototypes in headers. Cogl headers now consistently use this style for prototypes: return_type cogl_function_name (CoglType arg0, CoglType arg1); Not everyone likes this style, but it seems that most of the currently active Cogl developers agree on it. The second change is to constrain the use of redundant glib data types in Cogl. Uses of gint, guint, gfloat, glong, gulong and gchar have all been replaced with int, unsigned int, float, long, unsigned long and char respectively. When talking about pixel data; use of guchar has been replaced with guint8, otherwise unsigned char can be used. The glib types that we continue to use for portability are gboolean, gint{8,16,32,64}, guint{8,16,32,64} and gsize. The general intention is that Cogl should look palatable to the widest range of C programmers including those outside the Gnome community so - especially for the public API - we want to minimize the number of foreign looking typedefs.
2010-02-09 20:57:32 -05:00
static int
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
_cogl_texture_2d_get_width (CoglTexture *tex)
{
return COGL_TEXTURE_2D (tex)->width;
}
cogl: improves header and coding style consistency We've had complaints that our Cogl code/headers are a bit "special" so this is a first pass at tidying things up by giving them some consistency. These changes are all consistent with how new code in Cogl is being written, but the style isn't consistently applied across all code yet. There are two parts to this patch; but since each one required a large amount of effort to maintain tidy indenting it made sense to combine the changes to reduce the time spent re indenting the same lines. The first change is to use a consistent style for declaring function prototypes in headers. Cogl headers now consistently use this style for prototypes: return_type cogl_function_name (CoglType arg0, CoglType arg1); Not everyone likes this style, but it seems that most of the currently active Cogl developers agree on it. The second change is to constrain the use of redundant glib data types in Cogl. Uses of gint, guint, gfloat, glong, gulong and gchar have all been replaced with int, unsigned int, float, long, unsigned long and char respectively. When talking about pixel data; use of guchar has been replaced with guint8, otherwise unsigned char can be used. The glib types that we continue to use for portability are gboolean, gint{8,16,32,64}, guint{8,16,32,64} and gsize. The general intention is that Cogl should look palatable to the widest range of C programmers including those outside the Gnome community so - especially for the public API - we want to minimize the number of foreign looking typedefs.
2010-02-09 20:57:32 -05:00
static int
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
_cogl_texture_2d_get_height (CoglTexture *tex)
{
return COGL_TEXTURE_2D (tex)->height;
}
Support foreign textures in the texture-2d and rectangle backends This adds two new internal functions to create a foreign texture for the texture 2d and rectangle backends. cogl_texture_new_from_foreign will now use one of these backends directly if there is no waste instead of always using the sliced texture backend.
2010-10-04 10:27:38 -04:00
static gboolean
_cogl_texture_2d_is_foreign (CoglTexture *tex)
{
return COGL_TEXTURE_2D (tex)->is_foreign;
}
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
static const CoglTextureVtable
cogl_texture_2d_vtable =
{
_cogl_texture_2d_set_region,
_cogl_texture_2d_get_data,
meta-texture: This publicly exposes CoglMetaTexture CoglMetaTexture is an interface for dealing with high level textures that may be comprised of one or more low-level textures internally. The interface allows the development of primitive drawing APIs that can draw with high-level textures (such as atlas textures) even though the GPU doesn't natively understand these texture types. There is currently just one function that's part of this interface: cogl_meta_texture_foreach_in_region() which allows an application to resolve the internal, low-level textures of a high-level texture. cogl_rectangle() uses this API for example so that it can easily emulate the _REPEAT wrap mode for textures that the hardware can't natively handle repeating of. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-08 09:13:03 -04:00
NULL, /* foreach_sub_texture_in_region */
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
_cogl_texture_2d_get_max_waste,
_cogl_texture_2d_is_sliced,
_cogl_texture_2d_can_hardware_repeat,
_cogl_texture_2d_transform_coords_to_gl,
cogl: Make CoglSubTexture only work for quad rendering The sub texture backend doesn't work well as a completely general texture backend because for example when rendering with cogl_polygon it needs to be able to tranform arbitrary texture coordinates without reference to the other coordintes. This can't be done when the texture coordinates are a multiple of one because sometimes the coordinate should represent the left or top edge and sometimes it should represent the bottom or top edge. For example if the s coordinates are 0 and 1 then 1 represents the right edge but if they are 1 and 2 then 1 represents the left edge. Instead the sub-textures are now documented not to support coordinates outside the range [0,1]. The coordinates for the sub-region are now represented as integers as this helps avoid rounding issues. The region can no longer be a super-region of the texture as this simplifies the code quite a lot. There are two new texture virtual functions: transform_quad_coords_to_gl - This transforms two pairs of coordinates representing a quad. It will return FALSE if the coordinates can not be transformed. The sub texture backend uses this to detect coordinates that require repeating which causes cogl-primitives to use manual repeating. ensure_non_quad_rendering - This is used in cogl_polygon and cogl_vertex_buffer to inform the texture backend that transform_quad_to_gl is going to be used. The atlas backend migrates the texture out of the atlas when it hits this.
2010-01-18 04:22:04 -05:00
_cogl_texture_2d_transform_quad_coords_to_gl,
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
_cogl_texture_2d_get_gl_texture,
_cogl_texture_2d_set_filters,
cogl-texture: Replace the ensure_mipmaps virtual with pre_paint Instead of the ensure_mipmaps virtual that is only called whenever the texture is about to be rendered with a min filter that needs the mipmap, there is now a pre_paint virtual that is always called when the texture is about to be painted in any way. It has a flags parameter which is used to specify whether the mipmap will be needed. This is useful for CoglTexturePixmapX11 because it needs to do stuff before painting that is unrelated to mipmapping.
2010-06-09 12:39:59 -04:00
_cogl_texture_2d_pre_paint,
cogl: Make CoglSubTexture only work for quad rendering The sub texture backend doesn't work well as a completely general texture backend because for example when rendering with cogl_polygon it needs to be able to tranform arbitrary texture coordinates without reference to the other coordintes. This can't be done when the texture coordinates are a multiple of one because sometimes the coordinate should represent the left or top edge and sometimes it should represent the bottom or top edge. For example if the s coordinates are 0 and 1 then 1 represents the right edge but if they are 1 and 2 then 1 represents the left edge. Instead the sub-textures are now documented not to support coordinates outside the range [0,1]. The coordinates for the sub-region are now represented as integers as this helps avoid rounding issues. The region can no longer be a super-region of the texture as this simplifies the code quite a lot. There are two new texture virtual functions: transform_quad_coords_to_gl - This transforms two pairs of coordinates representing a quad. It will return FALSE if the coordinates can not be transformed. The sub texture backend uses this to detect coordinates that require repeating which causes cogl-primitives to use manual repeating. ensure_non_quad_rendering - This is used in cogl_polygon and cogl_vertex_buffer to inform the texture backend that transform_quad_to_gl is going to be used. The atlas backend migrates the texture out of the atlas when it hits this.
2010-01-18 04:22:04 -05:00
_cogl_texture_2d_ensure_non_quad_rendering,
Split the wrap mode of _cogl_texture_set_wrap_mode into three GL supports setting different wrap modes for the s, t and r coordinates so we should design the backend interface to support that also. The r coordinate is not currently used by any of the backends but we might as well have it to make life easier if we ever add support for 3D textures. http://bugzilla.openedhand.com/show_bug.cgi?id=2063
2010-03-25 13:29:22 -04:00
_cogl_texture_2d_set_wrap_mode_parameters,
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
_cogl_texture_2d_get_format,
_cogl_texture_2d_get_gl_format,
_cogl_texture_2d_get_width,
material: Avoid redundant glBindTexture calls This adds a _cogl_bind_gl_texture_transient function that should be used instead of glBindTexture so we can have a consistent cache of the textures bound to each texture unit so we can avoid some redundant binding.
2010-04-26 05:01:43 -04:00
_cogl_texture_2d_get_height,
Support foreign textures in the texture-2d and rectangle backends This adds two new internal functions to create a foreign texture for the texture 2d and rectangle backends. cogl_texture_new_from_foreign will now use one of these backends directly if there is no waste instead of always using the sliced texture backend.
2010-10-04 10:27:38 -04:00
_cogl_texture_2d_is_foreign
cogl: Add a CoglTexture2D backend This is an optimised version of CoglTexture2DSliced that always deals with a single texture and always uses the GL_TEXTURE_2D target. cogl_texture_new_from_bitmap now tries to use this backend first. If it can't create a texture with that size then it falls back the sliced backend. cogl_texture_upload_data_prepare has been split into two functions because the sliced backend needs to know the real internal format before the conversion is performed. Otherwise the converted bitmap will be wasted if the backend can't support the size.
2009-11-27 13:45:36 -05:00
};
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