Hello, I would like add support for sRGB framebuffers to EGL. Here are my proposed changes to EGL:
A new EGL_SURFACE_TYPE bit: EGL_GAMMA_SRGB_BIT - This format supports sRGB framebuffers. This also means that ARB_framebuffer_sRGB is supported for this format. New values: EGL_GAMMA_LINEAR - The gamma is linear. EGL_GAMMA_SRGB - The gamma is as defined by the sRGB standard. New EGL surface attribute: EGL_GAMMA - The gamma of the surface's framebuffer. The default value is EGL_GAMMA_LINEAR. When the surface's EGL_GAMMA attribute's value is EGL_GAMMA_SRGB and this is supported by the format, reads from this framebuffer will be converted from sRGB gamma and writes will be converted to sRGB gamma. This may not apply to all functions in the client API. There may be something related to the ARB_framebuffer_sRGB extension in EGL already, in which case someone should link me to it. There's two assumptions behind this proposal. One is that you won't support sRGB only formats. The other is that linear gamma and sRGB gamma format support is the same. This means that window systems can't add a new linear gamma format without adding an sRGB format and the other way around. I'd like some comments on this proposal and tips on how it could be implemented in the mess that is DRI. Thanks, John Kåre _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
