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13f228fe69
To delimit which symbols were considered experimental we used to use some preprocessor defines to gives experimental symbols an _EXP suffix so that anyone monitoring the ABI for changes would easily be able to discount changes made to clearly experimental functions. These days we simply rely on the gtk-doc "Stability: unstable" annotation to serve this purpose because changing the actual symbol name made it slightly more awkward to debug Cogl using GDB and was an extra mechanical step we decided we could do without. This patch removes the last remaining _EXP suffix defines in Cogl (cherry picked from commit 5a1c4a979e00accd492097cfb8f6a8d0fd8331bc)
225 lines
8.3 KiB
C
225 lines
8.3 KiB
C
/*
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* Cogl
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*
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* An object oriented GL/GLES Abstraction/Utility Layer
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*
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* Copyright (C) 2011 Intel Corporation.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*
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*
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* Authors:
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* Robert Bragg <robert@linux.intel.com>
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*/
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#if !defined(__COGL_H_INSIDE__) && !defined(COGL_COMPILATION)
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#error "Only <cogl/cogl.h> can be included directly."
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#endif
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#ifndef __COGL_TEXTURE_2D_H
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#define __COGL_TEXTURE_2D_H
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#include "cogl-context.h"
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#include <glib.h>
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G_BEGIN_DECLS
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/**
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* SECTION:cogl-texture-2d
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* @short_description: Functions for creating and manipulating 2D textures
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*
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* These functions allow low-level 2D textures to be allocated. These
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* differ from sliced textures for example which may internally be
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* made up of multiple 2D textures, or atlas textures where Cogl must
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* internally modify user texture coordinates before they can be used
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* by the GPU.
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*
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* You should be aware that many GPUs only support power of two sizes
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* for #CoglTexture2D textures. You can check support for non power of
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* two textures by checking for the %COGL_FEATURE_ID_TEXTURE_NPOT feature
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* via cogl_has_feature().
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*/
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typedef struct _CoglTexture2D CoglTexture2D;
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#define COGL_TEXTURE_2D(X) ((CoglTexture2D *)X)
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/**
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* cogl_is_texture_2d:
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* @object: A #CoglObject
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*
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* Gets whether the given object references an existing #CoglTexture2D
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* object.
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*
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* Return value: %TRUE if the object references a #CoglTexture2D,
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* %FALSE otherwise
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*/
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CoglBool
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cogl_is_texture_2d (void *object);
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/**
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* cogl_texture_2d_new_with_size:
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* @ctx: A #CoglContext
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* @width: Width of the texture to allocate
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* @height: Height of the texture to allocate
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* @internal_format: The format of the texture
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* @error: A #GError for exceptions
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*
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* Allocates a low-level #CoglTexture2D texture that your GPU can
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* texture from directly. This is unlike sliced textures for example
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* which may be comprised of multiple internal textures, or atlas
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* textures where Cogl has to modify texture coordinates before they
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* may be used by the GPU.
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*
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* <note>Many GPUs only support power of two sizes for #CoglTexture2D
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* textures. You can check support for non power of two textures by
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* checking for the %COGL_FEATURE_ID_TEXTURE_NPOT feature via
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* cogl_has_feature().</note>
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*
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* Returns: A newly allocated #CoglTexture2D, or if the size is not
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* supported (because it is too large or a non-power-of-two
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* size that the hardware doesn't support) it will return
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* %NULL and set @error.
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*
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* Since: 2.0
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*/
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CoglTexture2D *
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cogl_texture_2d_new_with_size (CoglContext *ctx,
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int width,
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int height,
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CoglPixelFormat internal_format,
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GError **error);
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/**
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* cogl_texture_2d_new_from_data:
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* @ctx: A #CoglContext
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* @width: width of texture in pixels
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* @height: height of texture in pixels
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* @format: the #CoglPixelFormat the buffer is stored in in RAM
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* @internal_format: the #CoglPixelFormat that will be used for storing
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* the buffer on the GPU. If %COGL_PIXEL_FORMAT_ANY is given then a
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* premultiplied format similar to the format of the source data will
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* be used. The default blending equations of Cogl expect premultiplied
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* color data; the main use of passing a non-premultiplied format here
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* is if you have non-premultiplied source data and are going to adjust
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* the blend mode (see cogl_pipeline_set_blend()) or use the data for
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* something other than straight blending.
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* @rowstride: the memory offset in bytes between the starts of
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* scanlines in @data. A value of 0 will make Cogl automatically
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* calculate @rowstride from @width and @format.
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* @data: pointer the memory region where the source buffer resides
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* @error: A #GError for exceptions
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*
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* Creates a new #CoglTexture2D texture based on data residing in memory.
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* These are unlike sliced textures for example which may be comprised
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* of multiple internal textures, or atlas textures where Cogl has to
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* modify texture coordinates before they may be used by the GPU.
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*
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* <note>Many GPUs only support power of two sizes for #CoglTexture2D
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* textures. You can check support for non power of two textures by
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* checking for the %COGL_FEATURE_ID_TEXTURE_NPOT feature via
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* cogl_has_feature().</note>
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*
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* Returns: A newly allocated #CoglTexture2D, or if the size is not
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* supported (because it is too large or a non-power-of-two
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* size that the hardware doesn't support) it will return
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* %NULL and set @error.
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*
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* Since: 2.0
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*/
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CoglTexture2D *
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cogl_texture_2d_new_from_data (CoglContext *ctx,
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int width,
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int height,
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CoglPixelFormat format,
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CoglPixelFormat internal_format,
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int rowstride,
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const uint8_t *data,
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GError **error);
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/**
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* cogl_texture_2d_new_from_bitmap:
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* @bitmap: A #CoglBitmap
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* @internal_format: the #CoglPixelFormat that will be used for storing
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* the buffer on the GPU. If %COGL_PIXEL_FORMAT_ANY is given then a
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* premultiplied format similar to the format of the source data will
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* be used. The default blending equations of Cogl expect premultiplied
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* color data; the main use of passing a non-premultiplied format here
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* is if you have non-premultiplied source data and are going to adjust
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* the blend mode (see cogl_pipeline_set_blend()) or use the data for
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* something other than straight blending.
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* @error: A #GError for exceptions
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*
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* Creates a new #CoglTexture2D texture based on data residing in a
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* bitmap. These are unlike sliced textures for example which may be
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* comprised of multiple internal textures, or atlas textures where
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* Cogl has to modify texture coordinates before they may be used by
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* the GPU.
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*
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* <note>Many GPUs only support power of two sizes for #CoglTexture2D
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* textures. You can check support for non power of two textures by
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* checking for the %COGL_FEATURE_ID_TEXTURE_NPOT feature via
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* cogl_has_feature().</note>
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*
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* Returns: A newly allocated #CoglTexture2D, or if the size is not
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* supported (because it is too large or a non-power-of-two
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* size that the hardware doesn't support) it will return
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* %NULL and set @error.
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*
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* Since: 2.0
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* Stability: unstable
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*/
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CoglTexture2D *
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cogl_texture_2d_new_from_bitmap (CoglBitmap *bitmap,
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CoglPixelFormat internal_format,
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GError **error);
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/**
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* cogl_texture_2d_new_from_foreign:
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* @ctx: A #CoglContext
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* @gl_handle: A GL handle for a GL_TEXTURE_2D texture object
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* @width: Width of the foreign GL texture
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* @height: Height of the foreign GL texture
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* @internal_format: The format of the texture
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* @error: A #GError for exceptions
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*
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* Wraps an existing GL_TEXTURE_2D texture object as a #CoglTexture2D.
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* This can be used for integrating Cogl with software using OpenGL
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* directly.
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*
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* <note>The results are undefined for passing an invalid @gl_handle
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* or if @width or @height don't have the correct texture
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* geometry.</note>
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*
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* Returns: A newly allocated #CoglTexture2D, or if Cogl could not
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* validate the @gl_handle in some way (perhaps because of
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* an unsupported format) it will return %NULL and set
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* @error.
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*
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* Since: 2.0
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*/
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CoglTexture2D *
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cogl_texture_2d_new_from_foreign (CoglContext *ctx,
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unsigned int gl_handle,
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int width,
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int height,
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CoglPixelFormat format,
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GError **error);
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G_END_DECLS
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#endif /* __COGL_TEXTURE_2D_H */
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