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mutter/cogl/cogl-texture-rectangle-private.h

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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) 2009 Intel Corporation.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*
*/
#ifndef __COGL_TEXTURE_RECTANGLE_H
#define __COGL_TEXTURE_RECTANGLE_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-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-texture-private.h"
struct _CoglTextureRectangle
{
CoglTexture _parent;
/* The internal format of the GL texture represented as a
CoglPixelFormat */
CoglPixelFormat format;
/* The internal format of the GL texture represented as a GL enum */
GLenum gl_format;
/* The texture object number */
GLuint gl_texture;
int width;
int height;
GLenum min_filter;
GLenum mag_filter;
GLint wrap_mode_s;
GLint wrap_mode_t;
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
gboolean 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
};
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);
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);
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
#endif /* __COGL_TEXTURE_RECTANGLE_H */
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