diff options
Diffstat (limited to 'video/out/opengl/formats.h')
| -rw-r--r-- | video/out/opengl/formats.h | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/video/out/opengl/formats.h b/video/out/opengl/formats.h index ebf3f3b331..5eed1ef2d4 100644 --- a/video/out/opengl/formats.h +++ b/video/out/opengl/formats.h @@ -35,9 +35,9 @@ enum { // the format is still GL_FLOAT (32 bit) // --- Other constants. - MPGL_TYPE_UNORM = 1, - MPGL_TYPE_UINT = 2, - MPGL_TYPE_FLOAT = 3, + MPGL_TYPE_UNORM = 1, // normalized integer (fixed point) formats + MPGL_TYPE_UINT = 2, // full integer formats + MPGL_TYPE_FLOAT = 3, // float formats (both full and half) }; int gl_format_feature_flags(GL *gl); @@ -57,4 +57,17 @@ int gl_component_size(GLenum type); int gl_format_components(GLenum format); int gl_bytes_per_pixel(GLenum format, GLenum type); +struct gl_imgfmt_desc { + int num_planes; + const struct gl_format *planes[4]; + // Chroma shift (sub-sampling) for each plane. + int xs[4], ys[4]; + // Component order (e.g. "rgba"), applied after all planes are combined. + // This has always 4 components (the excess components have no meaning). + // (For GL_LUMINANCE_ALPHA, it is assumed "ra" has been assigned to "rg".) + char swizzle[5]; +}; + +bool gl_get_imgfmt_desc(GL *gl, int imgfmt, struct gl_imgfmt_desc *out); + #endif |