OGL_ OGL_FEATURE_ID_ALPHA_TEXTURES : 23
OGL_ OGL_FEATURE_ID_BLIT_FRAMEBUFFER : 9
OGL_ OGL_FEATURE_ID_EXT_PACKED_DEPTH_STENCIL : 14
OGL_ OGL_FEATURE_ID_FENCE : 3
OGL_FEATURE_ID_FORMAT_CONVERSION : 21
OGL_ OGL_FEATURE_ID_MAP_BUFFER_FOR_READ : 1
OGL_ OGL_FEATURE_ID_MAP_BUFFER_FOR_WRITE : 2
OGL_ OGL_FEATURE_ID_MESA_PACK_INVERT : 12
OGL_ OGL_FEATURE_ID_OES_EGL_SYNC : 27
OGL_ OGL_FEATURE_ID_OES_PACKED_DEPTH_STENCIL : 15
OGL_ OGL_FEATURE_ID_PBOS : 13
OGL_ OGL_FEATURE_ID_QUERY_FRAMEBUFFER_BITS : 22
OGL_ OGL_FEATURE_ID_QUIRK_GENERATE_MIPMAP_NEEDS_FLUSH : 28
OGL_ OGL_FEATURE_ID_READ_PIXELS_ANY_STRIDE : 20
OGL_ OGL_FEATURE_ID_SAMPLER_OBJECTS : 19
OGL_ OGL_FEATURE_ID_TEXTURE_2D_FROM_EGL_IMAGE : 11
OGL_ OGL_FEATURE_ID_TEXTURE_EGL_IMAGE_EXTERNAL : 8
OGL_ OGL_FEATURE_ID_TEXTURE_FORMAT_BGRA8888 : 16
OGL_ OGL_FEATURE_ID_TEXTURE_FORMAT_SIZED_RGBA : 17
OGL_ OGL_FEATURE_ID_TEXTURE_HALF_FLOAT : 6
OGL_ OGL_FEATURE_ID_TEXTURE_LOD_BIAS : 26
OGL_ OGL_FEATURE_ID_TEXTURE_MAX_LEVEL : 25
OGL_ OGL_FEATURE_ID_TEXTURE_NORM16 : 7
OGL_ OGL_FEATURE_ID_TEXTURE_RG : 4
OGL_ OGL_FEATURE_ID_TEXTURE_RGBA1010102 : 5
OGL_ OGL_FEATURE_ID_TEXTURE_SWIZZLE : 24
OGL_ OGL_FEATURE_ID_TIMESTAMP_QUERY : 10
OGL_ OGL_FEATURE_ID_UNPACK_SUBIMAGE : 18
OGL_ OGL_FEATURE_ID_UNSIGNED_INT_INDICES : 0
All the capabilities that can vary between different GPUs supported by Cogl. Applications that depend on any of these features should explicitly check for them using Cogl.Driver.has_feature.