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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Makefile.am	Add support for RG textures	2014-01-20 14:40:45 +00:00
test-alpha-test.c	remove internal_format and redundant error arguments	2014-01-09 15:49:47 +00:00
test-alpha-textures.c	remove internal_format and redundant error arguments	2014-01-09 15:49:47 +00:00
test-atlas-migration.c	remove internal_format and redundant error arguments	2014-01-09 15:49:47 +00:00
test-backface-culling.c	remove internal_format and redundant error arguments	2014-01-09 15:49:47 +00:00
test-blend-strings.c	remove internal_format and redundant error arguments	2014-01-09 15:49:47 +00:00
test-blend.c
test-color-hsl.c	Declare interface types as void and remove cast macros	2013-11-27 19:33:44 +00:00
test-color-mask.c	remove internal_format and redundant error arguments	2014-01-09 15:49:47 +00:00
test-conform-main.c	Add support for RG textures	2014-01-20 14:40:45 +00:00
test-copy-replace-texture.c	remove internal_format and redundant error arguments	2014-01-09 15:49:47 +00:00
test-custom-attributes.c	gl: bind position attribute to location 0	2013-08-19 22:44:45 +01:00
test-depth-test.c	Add API to control per-framebuffer depth writing	2013-10-28 16:34:58 +00:00
test-euler-quaternion.c
test-fence.c	Declare interface types as void and remove cast macros	2013-11-27 19:33:44 +00:00
test-fixed.c
test-fixtures.c
test-framebuffer-get-bits.c	remove internal_format and redundant error arguments	2014-01-09 15:49:47 +00:00
test-gles2-context.c	remove internal_format and redundant error arguments	2014-01-09 15:49:47 +00:00
test-just-vertex-shader.c	remove internal_format and redundant error arguments	2014-01-09 15:49:47 +00:00
test-layer-remove.c
test-map-buffer-range.c	remove internal_format and redundant error arguments	2014-01-09 15:49:47 +00:00
test-materials.c
test-multitexture.c
test-no-gl-header.c
test-npot-texture.c	remove internal_format and redundant error arguments	2014-01-09 15:49:47 +00:00
test-object.c
test-offscreen.c	remove internal_format and redundant error arguments	2014-01-09 15:49:47 +00:00
test-path-clip.c	Add a test for cogl_framebuffer_push_path_clip	2013-12-03 15:28:24 +00:00
test-path.c
test-pipeline-cache-unrefs-texture.c	remove internal_format and redundant error arguments	2014-01-09 15:49:47 +00:00
test-pipeline-shader-state.c	remove internal_format and redundant error arguments	2014-01-09 15:49:47 +00:00
test-pipeline-uniforms.c
test-pipeline-user-matrix.c
test-pixel-buffer.c	remove internal_format and redundant error arguments	2014-01-09 15:49:47 +00:00
test-point-size-attribute.c
test-point-size.c
test-point-sprite.c	remove internal_format and redundant error arguments	2014-01-09 15:49:47 +00:00
test-premult.c	remove internal_format and redundant error arguments	2014-01-09 15:49:47 +00:00
test-primitive-and-journal.c
test-primitive.c	remove internal_format and redundant error arguments	2014-01-09 15:49:47 +00:00
test-read-texture-formats.c	Add support for RG textures	2014-01-20 14:40:45 +00:00
test-readpixels.c	offscreen: rename _new_to_texture to _new_with_texture	2013-08-19 22:44:44 +01:00
test-snippets.c	remove internal_format and redundant error arguments	2014-01-09 15:49:47 +00:00
test-sparse-pipeline.c
test-sub-texture.c	remove internal_format and redundant error arguments	2014-01-09 15:49:47 +00:00
test-texture-3d.c	remove internal_format and redundant error arguments	2014-01-09 15:49:47 +00:00
test-texture-get-set-data.c	remove internal_format and redundant error arguments	2014-01-09 15:49:47 +00:00
test-texture-mipmaps.c
test-texture-no-allocate.c	texture-rectangle: update _new_with_size in line with master	2014-01-13 17:35:05 +00:00
test-texture-pixmap-x11.c
test-texture-rectangle.c
test-texture-rg.c	Add support for RG textures	2014-01-20 14:40:45 +00:00
test-version.c	Declare interface types as void and remove cast macros	2013-11-27 19:33:44 +00:00
test-vertex-buffer-contiguous.c
test-vertex-buffer-interleved.c
test-vertex-buffer-mutability.c
test-viewport.c	offscreen: rename _new_to_texture to _new_with_texture	2013-08-19 22:44:44 +01:00
test-wrap-modes.c	remove internal_format and redundant error arguments	2014-01-09 15:49:47 +00:00
test-wrap-rectangle-textures.c	remove internal_format and redundant error arguments	2014-01-09 15:49:47 +00:00
test-write-texture-formats.c	Add support for RG textures	2014-01-20 14:40:45 +00:00