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058d79dce2
mutter/cogl
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Neil Roberts 058d79dce2 cogl: Make it easier to add checks for GL extensions 
Previously if you need to depend on a new GL feature you had to:

- Add typedefs for all of the functions in cogl-defines.h.in

- Add function pointers for each of the functions in
  cogl-context-driver.h

- Add an initializer for the function pointers in
  cogl-context-driver.c

- Add a check for the extension and all of the functions in
  cogl_features_init. If the extension is available under multiple
  names then you have to duplicate the checks.

This is quite tedious and error prone. This patch moves all of the
features and their functions into a list of macro invocations in
cogl-feature-functions.h. The macros can be redefined to implement all
of the above tasks from the same header.

The features are described in a struct with a pointer to a table of
functions. A new function takes the feature description from this
struct and checks for its availability. The feature can take a list of
extension names with a list of alternate namespaces (such as "EXT" or
"ARB"). It can also detect the feature from a particular version of
GL.

The typedefs are now gone and instead the function pointer in the Cogl
context just directly contains the type.

Some of the functions in the context were previously declared with the
'ARB' extension. This has been removed so that now all the functions
have no suffix. This makes more sense when the extension could
potentially be merged into GL core as well.
2009-11-17 15:11:26 +00:00
..
driver cogl: Make it easier to add checks for GL extensions 2009-11-17 15:11:26 +00:00
winsys build: Make COGL pass distcheck 2009-10-23 13:38:40 +01:00
cogl-bitmap-fallback.c Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-bitmap-pixbuf.c osx: CGBitmapContextCreate can't make 24bpp, alphaless offscreen pixmaps 2009-11-06 14:10:41 +00:00
cogl-bitmap-private.h Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-bitmap.c Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-bitmap.h cogl: Declare cogl_is_bitmap() 2009-11-11 10:32:39 +00:00
cogl-blend-string.c Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-blend-string.h Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-clip-stack.c [cogl-primitives] Don't clear the whole stencil buffer 2009-11-13 10:51:47 +00:00
cogl-clip-stack.h [draw-buffers] First pass at overhauling Cogl's framebuffer management 2009-11-03 17:23:03 +00:00
cogl-color.c Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-color.h Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-context.c [cogl] Use clockwise face winding for offscreen buffers with culling enabled 2009-11-04 03:34:03 +00:00
cogl-context.h [matrix] Adds cogl_matrix_get_inverse API 2009-11-04 03:34:05 +00:00
cogl-debug.c [debug] Adds a COGL_DEBUG=force-scanline-paths 2009-11-05 21:10:16 +00:00
cogl-debug.h [debug] Adds a COGL_DEBUG=force-scanline-paths 2009-11-05 21:10:16 +00:00
cogl-deprecated.h Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-draw-buffer-private.h [draw-buffer] Adds cogl_draw_buffer_get_{width,height} API 2009-11-04 03:23:20 +00:00
cogl-draw-buffer.c [cogl-draw-buffer] fix Cogl -> GL viewport coord conversion 2009-11-04 03:34:05 +00:00
cogl-enum-types.c.in Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-enum-types.h.in Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-feature-private.c cogl: Make it easier to add checks for GL extensions 2009-11-17 15:11:26 +00:00
cogl-feature-private.h cogl: Make it easier to add checks for GL extensions 2009-11-17 15:11:26 +00:00
cogl-fixed.c Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-fixed.h Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-handle.h [cogl-texture] Split CoglTexture into an abstract class + CoglTexture2dSliced 2009-10-16 18:58:51 +01:00
cogl-internal.h Remove _cogl_flush_matrix_stacks from cogl-internal.h 2009-11-12 17:01:44 +00:00
cogl-journal-private.h [cogl-primitives] Split the journal out from cogl-primitives.c 2009-10-16 18:58:52 +01:00
cogl-journal.c cogl: Make it easier to add checks for GL extensions 2009-11-17 15:11:26 +00:00
cogl-material-private.h Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-material.c cogl-material: Fallback to BlendFunc if BlendFuncSeparate is unavailable 2009-11-13 15:55:55 +00:00
cogl-material.h Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-matrix-mesa.c [cogl-matrix] Import Mesa's matrix manipulation code 2009-11-04 03:34:04 +00:00
cogl-matrix-mesa.h [cogl-matrix] Import Mesa's matrix manipulation code 2009-11-04 03:34:04 +00:00
cogl-matrix-private.h [debug] Adds a COGL_DEBUG=matrices debug option 2009-11-04 03:34:04 +00:00
cogl-matrix-stack.c [matrix] Adds cogl_matrix_get_inverse API 2009-11-04 03:34:05 +00:00
cogl-matrix-stack.h [matrix] Adds cogl_matrix_get_inverse API 2009-11-04 03:34:05 +00:00
cogl-matrix.c [matrix] Adds cogl_matrix_get_inverse API 2009-11-04 03:34:05 +00:00
cogl-matrix.h [matrix] Adds cogl_matrix_get_inverse API 2009-11-04 03:34:05 +00:00
cogl-offscreen.h Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-path.h Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-primitives.c [cogl-primitives] Don't clear the whole stencil buffer 2009-11-13 10:51:47 +00:00
cogl-primitives.h Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-shader.h Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-spans.c [cogl-spans] split out cogl-spans code from cogl-texture-2d-sliced 2009-10-16 18:58:52 +01:00
cogl-spans.h [cogl-spans] split out cogl-spans code from cogl-texture-2d-sliced 2009-10-16 18:58:52 +01:00
cogl-texture-2d-sliced-private.h [cogl-spans] split out cogl-spans code from cogl-texture-2d-sliced 2009-10-16 18:58:52 +01:00
cogl-texture-2d-sliced.c [cogl-texture-2d-sliced] allow COGL_FORMAT_ANY with _new_with_size() 2009-11-04 03:34:07 +00:00
cogl-texture-driver.h [cogl-texture] Split CoglTexture into an abstract class + CoglTexture2dSliced 2009-10-16 18:58:51 +01:00
cogl-texture-private.h [cogl-primitives] Split the journal out from cogl-primitives.c 2009-10-16 18:58:52 +01:00
cogl-texture.c [draw-buffers] First pass at overhauling Cogl's framebuffer management 2009-11-03 17:23:03 +00:00
cogl-texture.h [docs] switch gl_handle+gl_target docs for cogl_texture_new_from_foreign 2009-10-16 18:58:51 +01:00
cogl-types.h Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-util.c [cogl] Removes the cogl-current-matrix abstraction 2009-10-20 12:32:50 +01:00
cogl-util.h Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-vertex-buffer-private.h Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-vertex-buffer.c cogl: Make it easier to add checks for GL extensions 2009-11-17 15:11:26 +00:00
cogl-vertex-buffer.h Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl.c Validate that the GL version is >= 1.2 2009-11-13 15:55:48 +00:00
cogl.h.in Validate that the GL version is >= 1.2 2009-11-13 15:55:48 +00:00
cogl.pc.in Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
Makefile.am cogl: Make it easier to add checks for GL extensions 2009-11-17 15:11:26 +00:00
stb_image.c Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00