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mutter/cogl/cogl-texture-rectangle.c

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cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
/*
* Cogl
*
* An object oriented GL/GLES Abstraction/Utility Layer
*
* Copyright (C) 2010 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
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*
*
* 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-rectangle-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 22:25:52 +00:00
#include "cogl-context-private.h"
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
#include "cogl-handle.h"
#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 17:54:57 +00:00
#include "cogl-pipeline-opengl-private.h"
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
#include <string.h>
#include <math.h>
/* These aren't defined under GLES */
#ifndef GL_TEXTURE_RECTANGLE_ARB
#define GL_TEXTURE_RECTANGLE_ARB 0x84F5
#endif
#ifndef GL_CLAMP
#define GL_CLAMP 0x2900
#endif
#ifndef GL_CLAMP_TO_BORDER
#define GL_CLAMP_TO_BORDER 0x812D
#endif
static void _cogl_texture_rectangle_free (CoglTextureRectangle *tex_rect);
texture: Make CoglTextureRectangle experimentally public This exposes CoglTextureRectangle in the experimental cogl 2.0 api. For now we just expose a single constructor; cogl_texture_rectangle_new_with_size() but we can add more later. This is part of going work to improve our texture apis with more emphasis on providing low-level access to the varying semantics of different texture types understood by the gpu instead of only trying to present a lowest common denominator api. CoglTextureRectangle is notably useful for never being restricted to power of two sizes and for being sampled with non-normalized texture coordinates which can be convenient for use a lookup tables in glsl due to not needing separate uniforms for mapping normalized coordinates to texels. Unlike CoglTexture2D though rectangle textures can't have a mipmap and they only support the _CLAMP_TO_EDGE wrap mode. Applications wanting to use CoglTextureRectangle should first check cogl_has_feature (COGL_FEATURE_ID_TEXTURE_RECTANGLE). Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-14 08:25:12 +00:00
COGL_TEXTURE_DEFINE (TextureRectangle, texture_rectangle);
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
static const CoglTextureVtable cogl_texture_rectangle_vtable;
static gboolean
can_use_wrap_mode (GLenum wrap_mode)
{
return (wrap_mode == GL_CLAMP ||
wrap_mode == GL_CLAMP_TO_EDGE ||
wrap_mode == GL_CLAMP_TO_BORDER);
}
static void
_cogl_texture_rectangle_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 16:01:32 +00:00
GLenum wrap_mode_p)
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
{
CoglTextureRectangle *tex_rect = COGL_TEXTURE_RECTANGLE (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 20:51:00 +00:00
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
/* Only set the wrap mode if it's different from the current value
to avoid too many GL calls. Texture rectangle doesn't make use of
the r coordinate so we can ignore its wrap mode */
if (tex_rect->wrap_mode_s != wrap_mode_s ||
tex_rect->wrap_mode_t != wrap_mode_t)
{
g_assert (can_use_wrap_mode (wrap_mode_s));
g_assert (can_use_wrap_mode (wrap_mode_t));
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 20:51:00 +00:00
_cogl_bind_gl_texture_transient (GL_TEXTURE_RECTANGLE_ARB,
tex_rect->gl_texture,
tex_rect->is_foreign);
GE( ctx, glTexParameteri (GL_TEXTURE_RECTANGLE_ARB,
GL_TEXTURE_WRAP_S, wrap_mode_s) );
GE( ctx, glTexParameteri (GL_TEXTURE_RECTANGLE_ARB,
GL_TEXTURE_WRAP_T, wrap_mode_t) );
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
tex_rect->wrap_mode_s = wrap_mode_s;
tex_rect->wrap_mode_t = wrap_mode_t;
}
}
static void
_cogl_texture_rectangle_free (CoglTextureRectangle *tex_rect)
{
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 14:27:38 +00:00
if (!tex_rect->is_foreign)
_cogl_delete_gl_texture (tex_rect->gl_texture);
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
/* Chain up */
_cogl_texture_free (COGL_TEXTURE (tex_rect));
}
static gboolean
_cogl_texture_rectangle_can_create (unsigned int width,
unsigned int height,
texture: Make CoglTextureRectangle experimentally public This exposes CoglTextureRectangle in the experimental cogl 2.0 api. For now we just expose a single constructor; cogl_texture_rectangle_new_with_size() but we can add more later. This is part of going work to improve our texture apis with more emphasis on providing low-level access to the varying semantics of different texture types understood by the gpu instead of only trying to present a lowest common denominator api. CoglTextureRectangle is notably useful for never being restricted to power of two sizes and for being sampled with non-normalized texture coordinates which can be convenient for use a lookup tables in glsl due to not needing separate uniforms for mapping normalized coordinates to texels. Unlike CoglTexture2D though rectangle textures can't have a mipmap and they only support the _CLAMP_TO_EDGE wrap mode. Applications wanting to use CoglTextureRectangle should first check cogl_has_feature (COGL_FEATURE_ID_TEXTURE_RECTANGLE). Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-14 08:25:12 +00:00
CoglPixelFormat internal_format,
GError **error)
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
{
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 11:48:24 +00:00
_COGL_GET_CONTEXT (ctx, FALSE);
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 21:31:12 +00:00
if (!cogl_has_feature (ctx, COGL_FEATURE_ID_TEXTURE_RECTANGLE))
texture: Make CoglTextureRectangle experimentally public This exposes CoglTextureRectangle in the experimental cogl 2.0 api. For now we just expose a single constructor; cogl_texture_rectangle_new_with_size() but we can add more later. This is part of going work to improve our texture apis with more emphasis on providing low-level access to the varying semantics of different texture types understood by the gpu instead of only trying to present a lowest common denominator api. CoglTextureRectangle is notably useful for never being restricted to power of two sizes and for being sampled with non-normalized texture coordinates which can be convenient for use a lookup tables in glsl due to not needing separate uniforms for mapping normalized coordinates to texels. Unlike CoglTexture2D though rectangle textures can't have a mipmap and they only support the _CLAMP_TO_EDGE wrap mode. Applications wanting to use CoglTextureRectangle should first check cogl_has_feature (COGL_FEATURE_ID_TEXTURE_RECTANGLE). Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-14 08:25:12 +00:00
{
g_set_error (error,
COGL_TEXTURE_ERROR,
COGL_TEXTURE_ERROR_TYPE,
"The CoglTextureRectangle feature isn't available");
return FALSE;
}
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
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 11:48:24 +00:00
ctx->texture_driver->pixel_format_to_gl (internal_format,
&gl_intformat,
NULL,
&gl_type);
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
/* 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 11:48:24 +00:00
if (!ctx->texture_driver->size_supported (GL_TEXTURE_RECTANGLE_ARB,
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
gl_intformat,
gl_type,
width,
height))
texture: Make CoglTextureRectangle experimentally public This exposes CoglTextureRectangle in the experimental cogl 2.0 api. For now we just expose a single constructor; cogl_texture_rectangle_new_with_size() but we can add more later. This is part of going work to improve our texture apis with more emphasis on providing low-level access to the varying semantics of different texture types understood by the gpu instead of only trying to present a lowest common denominator api. CoglTextureRectangle is notably useful for never being restricted to power of two sizes and for being sampled with non-normalized texture coordinates which can be convenient for use a lookup tables in glsl due to not needing separate uniforms for mapping normalized coordinates to texels. Unlike CoglTexture2D though rectangle textures can't have a mipmap and they only support the _CLAMP_TO_EDGE wrap mode. Applications wanting to use CoglTextureRectangle should first check cogl_has_feature (COGL_FEATURE_ID_TEXTURE_RECTANGLE). Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-14 08:25:12 +00:00
{
g_set_error (error,
COGL_TEXTURE_ERROR,
COGL_TEXTURE_ERROR_SIZE,
"The requested texture size + format is unsupported");
return FALSE;
}
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
return TRUE;
}
static CoglTextureRectangle *
_cogl_texture_rectangle_create_base (unsigned int width,
unsigned int height,
CoglPixelFormat internal_format)
{
CoglTextureRectangle *tex_rect = g_new (CoglTextureRectangle, 1);
CoglTexture *tex = COGL_TEXTURE (tex_rect);
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 13:25:45 +00:00
_cogl_texture_init (tex, &cogl_texture_rectangle_vtable);
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
tex_rect->width = width;
tex_rect->height = height;
/* We default to GL_LINEAR for both filters */
tex_rect->min_filter = GL_LINEAR;
tex_rect->mag_filter = GL_LINEAR;
/* Wrap mode not yet set */
tex_rect->wrap_mode_s = GL_FALSE;
tex_rect->wrap_mode_t = GL_FALSE;
tex_rect->format = internal_format;
return tex_rect;
}
texture: Make CoglTextureRectangle experimentally public This exposes CoglTextureRectangle in the experimental cogl 2.0 api. For now we just expose a single constructor; cogl_texture_rectangle_new_with_size() but we can add more later. This is part of going work to improve our texture apis with more emphasis on providing low-level access to the varying semantics of different texture types understood by the gpu instead of only trying to present a lowest common denominator api. CoglTextureRectangle is notably useful for never being restricted to power of two sizes and for being sampled with non-normalized texture coordinates which can be convenient for use a lookup tables in glsl due to not needing separate uniforms for mapping normalized coordinates to texels. Unlike CoglTexture2D though rectangle textures can't have a mipmap and they only support the _CLAMP_TO_EDGE wrap mode. Applications wanting to use CoglTextureRectangle should first check cogl_has_feature (COGL_FEATURE_ID_TEXTURE_RECTANGLE). Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-14 08:25:12 +00:00
CoglTextureRectangle *
cogl_texture_rectangle_new_with_size (CoglContext *ctx,
int width,
int height,
CoglPixelFormat internal_format,
GError **error)
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
{
CoglTextureRectangle *tex_rect;
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;
texture: Make CoglTextureRectangle experimentally public This exposes CoglTextureRectangle in the experimental cogl 2.0 api. For now we just expose a single constructor; cogl_texture_rectangle_new_with_size() but we can add more later. This is part of going work to improve our texture apis with more emphasis on providing low-level access to the varying semantics of different texture types understood by the gpu instead of only trying to present a lowest common denominator api. CoglTextureRectangle is notably useful for never being restricted to power of two sizes and for being sampled with non-normalized texture coordinates which can be convenient for use a lookup tables in glsl due to not needing separate uniforms for mapping normalized coordinates to texels. Unlike CoglTexture2D though rectangle textures can't have a mipmap and they only support the _CLAMP_TO_EDGE wrap mode. Applications wanting to use CoglTextureRectangle should first check cogl_has_feature (COGL_FEATURE_ID_TEXTURE_RECTANGLE). Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-14 08:25:12 +00:00
if (!_cogl_texture_rectangle_can_create (width, height,
internal_format, error))
return NULL;
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
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 11:48:24 +00:00
internal_format = ctx->texture_driver->pixel_format_to_gl (internal_format,
&gl_intformat,
&gl_format,
&gl_type);
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
texture: Make CoglTextureRectangle experimentally public This exposes CoglTextureRectangle in the experimental cogl 2.0 api. For now we just expose a single constructor; cogl_texture_rectangle_new_with_size() but we can add more later. This is part of going work to improve our texture apis with more emphasis on providing low-level access to the varying semantics of different texture types understood by the gpu instead of only trying to present a lowest common denominator api. CoglTextureRectangle is notably useful for never being restricted to power of two sizes and for being sampled with non-normalized texture coordinates which can be convenient for use a lookup tables in glsl due to not needing separate uniforms for mapping normalized coordinates to texels. Unlike CoglTexture2D though rectangle textures can't have a mipmap and they only support the _CLAMP_TO_EDGE wrap mode. Applications wanting to use CoglTextureRectangle should first check cogl_has_feature (COGL_FEATURE_ID_TEXTURE_RECTANGLE). Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-14 08:25:12 +00:00
tex_rect = _cogl_texture_rectangle_create_base (width, height,
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
internal_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 11:48:24 +00:00
ctx->texture_driver->gen (GL_TEXTURE_RECTANGLE_ARB, 1, &tex_rect->gl_texture);
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 20:51:00 +00:00
_cogl_bind_gl_texture_transient (GL_TEXTURE_RECTANGLE_ARB,
tex_rect->gl_texture,
tex_rect->is_foreign);
GE( ctx, glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, gl_intformat,
width, height, 0, gl_format, gl_type, NULL) );
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
texture: Make CoglTextureRectangle experimentally public This exposes CoglTextureRectangle in the experimental cogl 2.0 api. For now we just expose a single constructor; cogl_texture_rectangle_new_with_size() but we can add more later. This is part of going work to improve our texture apis with more emphasis on providing low-level access to the varying semantics of different texture types understood by the gpu instead of only trying to present a lowest common denominator api. CoglTextureRectangle is notably useful for never being restricted to power of two sizes and for being sampled with non-normalized texture coordinates which can be convenient for use a lookup tables in glsl due to not needing separate uniforms for mapping normalized coordinates to texels. Unlike CoglTexture2D though rectangle textures can't have a mipmap and they only support the _CLAMP_TO_EDGE wrap mode. Applications wanting to use CoglTextureRectangle should first check cogl_has_feature (COGL_FEATURE_ID_TEXTURE_RECTANGLE). Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-14 08:25:12 +00:00
return _cogl_texture_rectangle_object_new (tex_rect);
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
}
texture: Make CoglTextureRectangle experimentally public This exposes CoglTextureRectangle in the experimental cogl 2.0 api. For now we just expose a single constructor; cogl_texture_rectangle_new_with_size() but we can add more later. This is part of going work to improve our texture apis with more emphasis on providing low-level access to the varying semantics of different texture types understood by the gpu instead of only trying to present a lowest common denominator api. CoglTextureRectangle is notably useful for never being restricted to power of two sizes and for being sampled with non-normalized texture coordinates which can be convenient for use a lookup tables in glsl due to not needing separate uniforms for mapping normalized coordinates to texels. Unlike CoglTexture2D though rectangle textures can't have a mipmap and they only support the _CLAMP_TO_EDGE wrap mode. Applications wanting to use CoglTextureRectangle should first check cogl_has_feature (COGL_FEATURE_ID_TEXTURE_RECTANGLE). Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-14 08:25:12 +00:00
CoglTextureRectangle *
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 17:44:16 +00:00
_cogl_texture_rectangle_new_from_bitmap (CoglBitmap *bmp,
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
CoglTextureFlags flags,
CoglPixelFormat internal_format)
{
CoglTextureRectangle *tex_rect;
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 17:44:16 +00:00
CoglBitmap *dst_bmp;
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
GLenum gl_intformat;
GLenum gl_format;
GLenum gl_type;
texture: Make CoglTextureRectangle experimentally public This exposes CoglTextureRectangle in the experimental cogl 2.0 api. For now we just expose a single constructor; cogl_texture_rectangle_new_with_size() but we can add more later. This is part of going work to improve our texture apis with more emphasis on providing low-level access to the varying semantics of different texture types understood by the gpu instead of only trying to present a lowest common denominator api. CoglTextureRectangle is notably useful for never being restricted to power of two sizes and for being sampled with non-normalized texture coordinates which can be convenient for use a lookup tables in glsl due to not needing separate uniforms for mapping normalized coordinates to texels. Unlike CoglTexture2D though rectangle textures can't have a mipmap and they only support the _CLAMP_TO_EDGE wrap mode. Applications wanting to use CoglTextureRectangle should first check cogl_has_feature (COGL_FEATURE_ID_TEXTURE_RECTANGLE). Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-14 08:25:12 +00:00
_COGL_GET_CONTEXT (ctx, NULL);
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 11:48:24 +00:00
texture: Make CoglTextureRectangle experimentally public This exposes CoglTextureRectangle in the experimental cogl 2.0 api. For now we just expose a single constructor; cogl_texture_rectangle_new_with_size() but we can add more later. This is part of going work to improve our texture apis with more emphasis on providing low-level access to the varying semantics of different texture types understood by the gpu instead of only trying to present a lowest common denominator api. CoglTextureRectangle is notably useful for never being restricted to power of two sizes and for being sampled with non-normalized texture coordinates which can be convenient for use a lookup tables in glsl due to not needing separate uniforms for mapping normalized coordinates to texels. Unlike CoglTexture2D though rectangle textures can't have a mipmap and they only support the _CLAMP_TO_EDGE wrap mode. Applications wanting to use CoglTextureRectangle should first check cogl_has_feature (COGL_FEATURE_ID_TEXTURE_RECTANGLE). Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-14 08:25:12 +00:00
_COGL_RETURN_VAL_IF_FAIL (cogl_is_bitmap (bmp), NULL);
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
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 17:44:16 +00:00
internal_format =
_cogl_texture_determine_internal_format (_cogl_bitmap_get_format (bmp),
internal_format);
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
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 17:44:16 +00:00
if (!_cogl_texture_rectangle_can_create (_cogl_bitmap_get_width (bmp),
_cogl_bitmap_get_height (bmp),
texture: Make CoglTextureRectangle experimentally public This exposes CoglTextureRectangle in the experimental cogl 2.0 api. For now we just expose a single constructor; cogl_texture_rectangle_new_with_size() but we can add more later. This is part of going work to improve our texture apis with more emphasis on providing low-level access to the varying semantics of different texture types understood by the gpu instead of only trying to present a lowest common denominator api. CoglTextureRectangle is notably useful for never being restricted to power of two sizes and for being sampled with non-normalized texture coordinates which can be convenient for use a lookup tables in glsl due to not needing separate uniforms for mapping normalized coordinates to texels. Unlike CoglTexture2D though rectangle textures can't have a mipmap and they only support the _CLAMP_TO_EDGE wrap mode. Applications wanting to use CoglTextureRectangle should first check cogl_has_feature (COGL_FEATURE_ID_TEXTURE_RECTANGLE). Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-14 08:25:12 +00:00
internal_format,
NULL))
return NULL;
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
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 17:44:16 +00:00
dst_bmp = _cogl_texture_prepare_for_upload (bmp,
internal_format,
&internal_format,
&gl_intformat,
&gl_format,
&gl_type);
if (dst_bmp == NULL)
texture: Make CoglTextureRectangle experimentally public This exposes CoglTextureRectangle in the experimental cogl 2.0 api. For now we just expose a single constructor; cogl_texture_rectangle_new_with_size() but we can add more later. This is part of going work to improve our texture apis with more emphasis on providing low-level access to the varying semantics of different texture types understood by the gpu instead of only trying to present a lowest common denominator api. CoglTextureRectangle is notably useful for never being restricted to power of two sizes and for being sampled with non-normalized texture coordinates which can be convenient for use a lookup tables in glsl due to not needing separate uniforms for mapping normalized coordinates to texels. Unlike CoglTexture2D though rectangle textures can't have a mipmap and they only support the _CLAMP_TO_EDGE wrap mode. Applications wanting to use CoglTextureRectangle should first check cogl_has_feature (COGL_FEATURE_ID_TEXTURE_RECTANGLE). Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-14 08:25:12 +00:00
return NULL;
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
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 17:44:16 +00:00
tex_rect = _cogl_texture_rectangle_create_base (_cogl_bitmap_get_width (bmp),
_cogl_bitmap_get_height (bmp),
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
internal_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 11:48:24 +00:00
ctx->texture_driver->gen (GL_TEXTURE_RECTANGLE_ARB, 1, &tex_rect->gl_texture);
ctx->texture_driver->upload_to_gl (GL_TEXTURE_RECTANGLE_ARB,
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
tex_rect->gl_texture,
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 17:44:16 +00:00
dst_bmp,
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
gl_intformat,
gl_format,
gl_type);
tex_rect->gl_format = gl_intformat;
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 17:44:16 +00:00
cogl_object_unref (dst_bmp);
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
texture: Make CoglTextureRectangle experimentally public This exposes CoglTextureRectangle in the experimental cogl 2.0 api. For now we just expose a single constructor; cogl_texture_rectangle_new_with_size() but we can add more later. This is part of going work to improve our texture apis with more emphasis on providing low-level access to the varying semantics of different texture types understood by the gpu instead of only trying to present a lowest common denominator api. CoglTextureRectangle is notably useful for never being restricted to power of two sizes and for being sampled with non-normalized texture coordinates which can be convenient for use a lookup tables in glsl due to not needing separate uniforms for mapping normalized coordinates to texels. Unlike CoglTexture2D though rectangle textures can't have a mipmap and they only support the _CLAMP_TO_EDGE wrap mode. Applications wanting to use CoglTextureRectangle should first check cogl_has_feature (COGL_FEATURE_ID_TEXTURE_RECTANGLE). Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-14 08:25:12 +00:00
return _cogl_texture_rectangle_object_new (tex_rect);
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
}
texture: Make CoglTextureRectangle experimentally public This exposes CoglTextureRectangle in the experimental cogl 2.0 api. For now we just expose a single constructor; cogl_texture_rectangle_new_with_size() but we can add more later. This is part of going work to improve our texture apis with more emphasis on providing low-level access to the varying semantics of different texture types understood by the gpu instead of only trying to present a lowest common denominator api. CoglTextureRectangle is notably useful for never being restricted to power of two sizes and for being sampled with non-normalized texture coordinates which can be convenient for use a lookup tables in glsl due to not needing separate uniforms for mapping normalized coordinates to texels. Unlike CoglTexture2D though rectangle textures can't have a mipmap and they only support the _CLAMP_TO_EDGE wrap mode. Applications wanting to use CoglTextureRectangle should first check cogl_has_feature (COGL_FEATURE_ID_TEXTURE_RECTANGLE). Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-14 08:25:12 +00:00
CoglTextureRectangle *
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 14:27:38 +00:00
_cogl_texture_rectangle_new_from_foreign (GLuint gl_handle,
GLuint width,
GLuint height,
CoglPixelFormat format)
{
/* 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;
CoglTextureRectangle *tex_rect;
texture: Make CoglTextureRectangle experimentally public This exposes CoglTextureRectangle in the experimental cogl 2.0 api. For now we just expose a single constructor; cogl_texture_rectangle_new_with_size() but we can add more later. This is part of going work to improve our texture apis with more emphasis on providing low-level access to the varying semantics of different texture types understood by the gpu instead of only trying to present a lowest common denominator api. CoglTextureRectangle is notably useful for never being restricted to power of two sizes and for being sampled with non-normalized texture coordinates which can be convenient for use a lookup tables in glsl due to not needing separate uniforms for mapping normalized coordinates to texels. Unlike CoglTexture2D though rectangle textures can't have a mipmap and they only support the _CLAMP_TO_EDGE wrap mode. Applications wanting to use CoglTextureRectangle should first check cogl_has_feature (COGL_FEATURE_ID_TEXTURE_RECTANGLE). Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-14 08:25:12 +00:00
_COGL_GET_CONTEXT (ctx, NULL);
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 20:51:00 +00:00
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 11:48:24 +00:00
if (!ctx->texture_driver->allows_foreign_gl_target (GL_TEXTURE_RECTANGLE_ARB))
texture: Make CoglTextureRectangle experimentally public This exposes CoglTextureRectangle in the experimental cogl 2.0 api. For now we just expose a single constructor; cogl_texture_rectangle_new_with_size() but we can add more later. This is part of going work to improve our texture apis with more emphasis on providing low-level access to the varying semantics of different texture types understood by the gpu instead of only trying to present a lowest common denominator api. CoglTextureRectangle is notably useful for never being restricted to power of two sizes and for being sampled with non-normalized texture coordinates which can be convenient for use a lookup tables in glsl due to not needing separate uniforms for mapping normalized coordinates to texels. Unlike CoglTexture2D though rectangle textures can't have a mipmap and they only support the _CLAMP_TO_EDGE wrap mode. Applications wanting to use CoglTextureRectangle should first check cogl_has_feature (COGL_FEATURE_ID_TEXTURE_RECTANGLE). Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-14 08:25:12 +00:00
return 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 14:27:38 +00:00
/* 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 20:51:00 +00:00
if (!ctx->glIsTexture (gl_handle))
texture: Make CoglTextureRectangle experimentally public This exposes CoglTextureRectangle in the experimental cogl 2.0 api. For now we just expose a single constructor; cogl_texture_rectangle_new_with_size() but we can add more later. This is part of going work to improve our texture apis with more emphasis on providing low-level access to the varying semantics of different texture types understood by the gpu instead of only trying to present a lowest common denominator api. CoglTextureRectangle is notably useful for never being restricted to power of two sizes and for being sampled with non-normalized texture coordinates which can be convenient for use a lookup tables in glsl due to not needing separate uniforms for mapping normalized coordinates to texels. Unlike CoglTexture2D though rectangle textures can't have a mipmap and they only support the _CLAMP_TO_EDGE wrap mode. Applications wanting to use CoglTextureRectangle should first check cogl_has_feature (COGL_FEATURE_ID_TEXTURE_RECTANGLE). Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-14 08:25:12 +00:00
return 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 14:27:38 +00:00
/* 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 20:51:00 +00:00
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 14:27:38 +00:00
;
_cogl_bind_gl_texture_transient (GL_TEXTURE_RECTANGLE_ARB, 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 20:51:00 +00:00
if (ctx->glGetError () != GL_NO_ERROR)
texture: Make CoglTextureRectangle experimentally public This exposes CoglTextureRectangle in the experimental cogl 2.0 api. For now we just expose a single constructor; cogl_texture_rectangle_new_with_size() but we can add more later. This is part of going work to improve our texture apis with more emphasis on providing low-level access to the varying semantics of different texture types understood by the gpu instead of only trying to present a lowest common denominator api. CoglTextureRectangle is notably useful for never being restricted to power of two sizes and for being sampled with non-normalized texture coordinates which can be convenient for use a lookup tables in glsl due to not needing separate uniforms for mapping normalized coordinates to texels. Unlike CoglTexture2D though rectangle textures can't have a mipmap and they only support the _CLAMP_TO_EDGE wrap mode. Applications wanting to use CoglTextureRectangle should first check cogl_has_feature (COGL_FEATURE_ID_TEXTURE_RECTANGLE). Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-14 08:25:12 +00:00
return 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 14:27:38 +00:00
/* Obtain texture parameters */
#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 19:44:56 +00:00
if (ctx->driver == COGL_DRIVER_GL)
{
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 14:27:38 +00:00
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 19:44:56 +00:00
GE( ctx, glGetTexLevelParameteriv (GL_TEXTURE_RECTANGLE_ARB, 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 14:27:38 +00:00
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 19:44:56 +00:00
GE( ctx, glGetTexLevelParameteriv (GL_TEXTURE_RECTANGLE_ARB, 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 14:27:38 +00:00
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 19:44:56 +00:00
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 14:27:38 +00:00
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 19:44:56 +00:00
/* 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))
texture: Make CoglTextureRectangle experimentally public This exposes CoglTextureRectangle in the experimental cogl 2.0 api. For now we just expose a single constructor; cogl_texture_rectangle_new_with_size() but we can add more later. This is part of going work to improve our texture apis with more emphasis on providing low-level access to the varying semantics of different texture types understood by the gpu instead of only trying to present a lowest common denominator api. CoglTextureRectangle is notably useful for never being restricted to power of two sizes and for being sampled with non-normalized texture coordinates which can be convenient for use a lookup tables in glsl due to not needing separate uniforms for mapping normalized coordinates to texels. Unlike CoglTexture2D though rectangle textures can't have a mipmap and they only support the _CLAMP_TO_EDGE wrap mode. Applications wanting to use CoglTextureRectangle should first check cogl_has_feature (COGL_FEATURE_ID_TEXTURE_RECTANGLE). Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-14 08:25:12 +00:00
return NULL;
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 19:44:56 +00:00
}
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 14:27:38 +00:00
#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 19:44:56 +00:00
{
/* 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 14:27:38 +00:00
/* 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)
texture: Make CoglTextureRectangle experimentally public This exposes CoglTextureRectangle in the experimental cogl 2.0 api. For now we just expose a single constructor; cogl_texture_rectangle_new_with_size() but we can add more later. This is part of going work to improve our texture apis with more emphasis on providing low-level access to the varying semantics of different texture types understood by the gpu instead of only trying to present a lowest common denominator api. CoglTextureRectangle is notably useful for never being restricted to power of two sizes and for being sampled with non-normalized texture coordinates which can be convenient for use a lookup tables in glsl due to not needing separate uniforms for mapping normalized coordinates to texels. Unlike CoglTexture2D though rectangle textures can't have a mipmap and they only support the _CLAMP_TO_EDGE wrap mode. Applications wanting to use CoglTextureRectangle should first check cogl_has_feature (COGL_FEATURE_ID_TEXTURE_RECTANGLE). Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-14 08:25:12 +00:00
return 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 14:27:38 +00:00
/* Compressed texture images not supported */
if (gl_compressed == GL_TRUE)
texture: Make CoglTextureRectangle experimentally public This exposes CoglTextureRectangle in the experimental cogl 2.0 api. For now we just expose a single constructor; cogl_texture_rectangle_new_with_size() but we can add more later. This is part of going work to improve our texture apis with more emphasis on providing low-level access to the varying semantics of different texture types understood by the gpu instead of only trying to present a lowest common denominator api. CoglTextureRectangle is notably useful for never being restricted to power of two sizes and for being sampled with non-normalized texture coordinates which can be convenient for use a lookup tables in glsl due to not needing separate uniforms for mapping normalized coordinates to texels. Unlike CoglTexture2D though rectangle textures can't have a mipmap and they only support the _CLAMP_TO_EDGE wrap mode. Applications wanting to use CoglTextureRectangle should first check cogl_has_feature (COGL_FEATURE_ID_TEXTURE_RECTANGLE). Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-14 08:25:12 +00:00
return 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 14:27:38 +00:00
/* Create new texture */
texture: Make CoglTextureRectangle experimentally public This exposes CoglTextureRectangle in the experimental cogl 2.0 api. For now we just expose a single constructor; cogl_texture_rectangle_new_with_size() but we can add more later. This is part of going work to improve our texture apis with more emphasis on providing low-level access to the varying semantics of different texture types understood by the gpu instead of only trying to present a lowest common denominator api. CoglTextureRectangle is notably useful for never being restricted to power of two sizes and for being sampled with non-normalized texture coordinates which can be convenient for use a lookup tables in glsl due to not needing separate uniforms for mapping normalized coordinates to texels. Unlike CoglTexture2D though rectangle textures can't have a mipmap and they only support the _CLAMP_TO_EDGE wrap mode. Applications wanting to use CoglTextureRectangle should first check cogl_has_feature (COGL_FEATURE_ID_TEXTURE_RECTANGLE). Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-14 08:25:12 +00:00
tex_rect = _cogl_texture_rectangle_create_base (width, height, format);
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 14:27:38 +00:00
/* Setup bitmap info */
tex_rect->is_foreign = TRUE;
tex_rect->format = format;
tex_rect->gl_texture = gl_handle;
tex_rect->gl_format = gl_int_format;
/* Unknown filter */
tex_rect->min_filter = GL_FALSE;
tex_rect->mag_filter = GL_FALSE;
return _cogl_texture_rectangle_handle_new (tex_rect);
}
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
static int
_cogl_texture_rectangle_get_max_waste (CoglTexture *tex)
{
return -1;
}
static gboolean
_cogl_texture_rectangle_is_sliced (CoglTexture *tex)
{
return FALSE;
}
static gboolean
_cogl_texture_rectangle_can_hardware_repeat (CoglTexture *tex)
{
return FALSE;
}
static void
_cogl_texture_rectangle_transform_coords_to_gl (CoglTexture *tex,
float *s,
float *t)
{
CoglTextureRectangle *tex_rect = COGL_TEXTURE_RECTANGLE (tex);
*s *= tex_rect->width;
*t *= tex_rect->height;
}
static CoglTransformResult
_cogl_texture_rectangle_transform_quad_coords_to_gl (CoglTexture *tex,
float *coords)
{
CoglTextureRectangle *tex_rect = COGL_TEXTURE_RECTANGLE (tex);
gboolean need_repeat = FALSE;
int i;
for (i = 0; i < 4; i++)
{
if (coords[i] < 0.0f || coords[i] > 1.0f)
need_repeat = TRUE;
coords[i] *= (i & 1) ? tex_rect->height : tex_rect->width;
}
return (need_repeat ? COGL_TRANSFORM_SOFTWARE_REPEAT
: COGL_TRANSFORM_NO_REPEAT);
}
static gboolean
_cogl_texture_rectangle_get_gl_texture (CoglTexture *tex,
GLuint *out_gl_handle,
GLenum *out_gl_target)
{
CoglTextureRectangle *tex_rect = COGL_TEXTURE_RECTANGLE (tex);
if (out_gl_handle)
*out_gl_handle = tex_rect->gl_texture;
if (out_gl_target)
*out_gl_target = GL_TEXTURE_RECTANGLE_ARB;
return TRUE;
}
static void
_cogl_texture_rectangle_set_filters (CoglTexture *tex,
GLenum min_filter,
GLenum mag_filter)
{
CoglTextureRectangle *tex_rect = COGL_TEXTURE_RECTANGLE (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 20:51:00 +00:00
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
if (min_filter == tex_rect->min_filter
&& mag_filter == tex_rect->mag_filter)
return;
/* Rectangle textures don't support mipmapping */
g_assert (min_filter == GL_LINEAR || min_filter == GL_NEAREST);
/* Store new values */
tex_rect->min_filter = min_filter;
tex_rect->mag_filter = mag_filter;
/* Apply new filters to the texture */
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 20:51:00 +00:00
_cogl_bind_gl_texture_transient (GL_TEXTURE_RECTANGLE_ARB,
tex_rect->gl_texture,
tex_rect->is_foreign);
GE( ctx, glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER,
mag_filter) );
GE( ctx, glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER,
min_filter) );
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
}
static void
_cogl_texture_rectangle_pre_paint (CoglTexture *tex,
CoglTexturePrePaintFlags flags)
{
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
/* Rectangle textures don't support mipmaps */
g_assert ((flags & COGL_TEXTURE_NEEDS_MIPMAP) == 0);
}
static void
_cogl_texture_rectangle_ensure_non_quad_rendering (CoglTexture *tex)
{
/* Nothing needs to be done */
}
static gboolean
_cogl_texture_rectangle_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 14:15:22 +00:00
CoglBitmap *bmp)
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
{
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 14:15:22 +00:00
CoglTextureRectangle *tex_rect = COGL_TEXTURE_RECTANGLE (tex);
GLenum gl_format;
GLenum gl_type;
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
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 11:48:24 +00:00
_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 16:22:20 +00:00
bmp = _cogl_texture_prepare_for_upload (bmp,
cogl_texture_get_format (tex),
NULL,
NULL,
&gl_format,
&gl_type);
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
/* 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 11:48:24 +00:00
ctx->texture_driver->upload_subregion_to_gl (GL_TEXTURE_RECTANGLE_ARB,
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
tex_rect->gl_texture,
FALSE,
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 14:15:22 +00:00
bmp,
gl_format,
gl_type);
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
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 16:22:20 +00:00
cogl_object_unref (bmp);
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
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 12:54:37 +00:00
static gboolean
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
_cogl_texture_rectangle_get_data (CoglTexture *tex,
CoglPixelFormat format,
unsigned int rowstride,
guint8 *data)
{
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 12:54:37 +00:00
CoglTextureRectangle *tex_rect = COGL_TEXTURE_RECTANGLE (tex);
int bpp;
GLenum gl_format;
GLenum gl_type;
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
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 20:51:00 +00:00
_COGL_GET_CONTEXT (ctx, FALSE);
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
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 11:48:24 +00:00
ctx->texture_driver->pixel_format_to_gl (format,
NULL, /* internal format */
&gl_format,
&gl_type);
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
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 11:48:24 +00:00
ctx->texture_driver->prep_gl_for_pixels_download (rowstride, bpp);
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
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 20:51:00 +00:00
_cogl_bind_gl_texture_transient (GL_TEXTURE_RECTANGLE_ARB,
tex_rect->gl_texture,
tex_rect->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 11:48:24 +00:00
return ctx->texture_driver->gl_get_tex_image (GL_TEXTURE_RECTANGLE_ARB,
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 12:54:37 +00:00
gl_format,
gl_type,
data);
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
}
static CoglPixelFormat
_cogl_texture_rectangle_get_format (CoglTexture *tex)
{
return COGL_TEXTURE_RECTANGLE (tex)->format;
}
static GLenum
_cogl_texture_rectangle_get_gl_format (CoglTexture *tex)
{
return COGL_TEXTURE_RECTANGLE (tex)->gl_format;
}
static int
_cogl_texture_rectangle_get_width (CoglTexture *tex)
{
return COGL_TEXTURE_RECTANGLE (tex)->width;
}
static int
_cogl_texture_rectangle_get_height (CoglTexture *tex)
{
return COGL_TEXTURE_RECTANGLE (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 14:27:38 +00:00
static gboolean
_cogl_texture_rectangle_is_foreign (CoglTexture *tex)
{
return COGL_TEXTURE_RECTANGLE (tex)->is_foreign;
}
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
static const CoglTextureVtable
cogl_texture_rectangle_vtable =
{
_cogl_texture_rectangle_set_region,
_cogl_texture_rectangle_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 13:13:03 +00:00
NULL, /* foreach_sub_texture_in_region */
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
_cogl_texture_rectangle_get_max_waste,
_cogl_texture_rectangle_is_sliced,
_cogl_texture_rectangle_can_hardware_repeat,
_cogl_texture_rectangle_transform_coords_to_gl,
_cogl_texture_rectangle_transform_quad_coords_to_gl,
_cogl_texture_rectangle_get_gl_texture,
_cogl_texture_rectangle_set_filters,
_cogl_texture_rectangle_pre_paint,
_cogl_texture_rectangle_ensure_non_quad_rendering,
_cogl_texture_rectangle_set_wrap_mode_parameters,
_cogl_texture_rectangle_get_format,
_cogl_texture_rectangle_get_gl_format,
_cogl_texture_rectangle_get_width,
_cogl_texture_rectangle_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 14:27:38 +00:00
_cogl_texture_rectangle_is_foreign
cogl: Add an internal CoglTextureRectangle backend This adds an internal rectangle texture backend which is mostly based on the CoglTexture2D backend. It will throw assert failures if any operations are attempted that rectangle textures don't support, such as mipmapping or hardware repeating.
2010-06-10 14:33:34 +00:00
};
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