Neil Roberts eb7ef457cb Add support for RG textures ... This adds COGL_PIXEL_FORMAT_RG_88 and COGL_TEXTURE_COMPONENTS_RG in order to support two-component textures. The RG components for a texture is only supported if COGL_FEATURE_ID_TEXTURE_RG is advertised. This is only available on GL 3, GL 2 with the GL_ARB_texture_rg extension or GLES with the GL_EXT_texture_rg extension. The RG pixel format is always supported for images because Cogl can easily do the conversion if an application uses this format to upload to a texture with a different format. If an application tries to create an RG texture when the feature isn't supported then it will raise an error when the texture is allocated. https://bugzilla.gnome.org/show_bug.cgi?id=712830 Reviewed-by: Robert Bragg <robert@linux.intel.com> (cherry picked from commit 568677ab3bcb62ababad1623be0d6b9b117d0a26) Conflicts: cogl/cogl-bitmap-packing.h cogl/cogl-types.h cogl/driver/gl/gl/cogl-driver-gl.c tests/conform/test-read-texture-formats.c tests/conform/test-write-texture-formats.c		2014-01-20 14:40:45 +00:00
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gl	Add support for RG textures	2014-01-20 14:40:45 +00:00
gles	Add support for RG textures	2014-01-20 14:40:45 +00:00
cogl-attribute-gl-private.h	buffer: splits out GL specific code	2013-01-22 17:47:59 +00:00
cogl-attribute-gl.c	Use COGL_FLAGS_* for the context's private feature flags	2013-11-28 18:12:22 +00:00
cogl-buffer-gl-private.h	Allow propogation of OOM errors to apps	2013-01-22 17:48:07 +00:00
cogl-buffer-gl.c	buffer: Don't set the invalidate hint when requesting read access	2013-02-19 15:03:30 +00:00
cogl-clip-stack-gl-private.h	clip-stack: Splits out opengl specific code	2013-01-22 17:47:59 +00:00
cogl-clip-stack-gl.c	Use COGL_FLAGS_* for the context's private feature flags	2013-11-28 18:12:22 +00:00
cogl-framebuffer-gl-private.h	framebuffer: Bind the framebuffer before querying the bits	2013-01-22 17:48:18 +00:00
cogl-framebuffer-gl.c	remove internal_format and redundant error arguments	2014-01-09 15:49:47 +00:00
cogl-pipeline-fragend-fixed-private.h	Re-organize the source layout	2013-01-22 17:47:19 +00:00
cogl-pipeline-fragend-fixed.c	Remove cogl-internal.h	2013-01-22 17:48:17 +00:00
cogl-pipeline-fragend-glsl-private.h	Re-organize the source layout	2013-01-22 17:47:19 +00:00
cogl-pipeline-fragend-glsl.c	pipeline-cache: Prune old unused pipelines when the cache gets too big	2014-01-14 12:05:17 +00:00
cogl-pipeline-opengl-private.h	pipeline: improve real_blend_enable checks	2013-06-06 21:27:09 +01:00
cogl-pipeline-opengl.c	Use COGL_FLAGS_* for the context's private feature flags	2013-11-28 18:12:22 +00:00
cogl-pipeline-progend-fixed-private.h	Re-organize the source layout	2013-01-22 17:47:19 +00:00
cogl-pipeline-progend-fixed.c	Use COGL_FLAGS_* for the context's private feature flags	2013-11-28 18:12:22 +00:00
cogl-pipeline-progend-glsl-private.h	Re-organize the source layout	2013-01-22 17:47:19 +00:00
cogl-pipeline-progend-glsl.c	pipeline-cache: Prune old unused pipelines when the cache gets too big	2014-01-14 12:05:17 +00:00
cogl-pipeline-vertend-fixed-private.h	Re-organize the source layout	2013-01-22 17:47:19 +00:00
cogl-pipeline-vertend-fixed.c	Don't generate GLSL for the point size for default pipelines	2013-06-21 14:18:37 +01:00
cogl-pipeline-vertend-glsl-private.h	Re-organize the source layout	2013-01-22 17:47:19 +00:00
cogl-pipeline-vertend-glsl.c	pipeline-cache: Prune old unused pipelines when the cache gets too big	2014-01-14 12:05:17 +00:00
cogl-texture-2d-gl-private.h	texture: remove _cogl_texture_prepare_for_upload	2013-07-29 16:31:44 +01:00
cogl-texture-2d-gl.c	remove internal_format and redundant error arguments	2014-01-09 15:49:47 +00:00
cogl-texture-gl-private.h	Move _cogl_texture_get_gl_format to -texture-gl.c	2013-01-22 17:48:17 +00:00
cogl-texture-gl.c	Use COGL_FLAGS_* for the context's private feature flags	2013-11-28 18:12:22 +00:00
cogl-util-gl-private.h	Add the layer's sampler and uniform declarations at the start	2013-02-27 15:53:43 +00:00
cogl-util-gl.c	Add the layer's sampler and uniform declarations at the start	2013-02-27 15:53:43 +00:00