[PATCH 1/5] wined3d: Fix sRGB clears with no support for ARB_framebuffer_sRGB.

[Henri Verbeet]

On 27 January 2017 at 22:22, Matteo Bruni <matteo.mystral at gmail.com> wrote:
> Yes, the idea is to do the "manual" sRGB correction of the clear color
> when ARB_framebuffer_sRGB is not supported even if the format doesn't
> advertise WINED3DFMT_FLAG_SRGB_WRITE.
> The story behind this goes like "oh, the test always expects the sRGB
> corrected color, which seems weird for formats / GPUs not supporting
> sRGB. Let me fix the test. Oh, wait, the test now fails on the GF4 Go
> (which doesn't advertise WINED3DFMT_FLAG_SRGB_WRITE for the relevant
> texture format) and actually it was passing before. I guess wined3d is
> wrong then..."
>
> So, this is the fix spurred from that test result, in that we do the
> manual clear color sRGB correction if ARB_framebuffer_sRGB is not
> supported AND we're on d3d9, regardless of the format flags. If
> ARB_framebuffer_sRGB is supported we enable GL_FRAMEBUFFER_SRGB in
> context_apply_clear_state() instead and the condition there should
> still be fine (I think?).
Yes, but now (in d3d9) you'd get sRGB clears on e.g.
WINED3DFMT_B5G6R5_UNORM when ARB_framebuffer_sRGB is not supported,
while you wouldn't (necessarily) when it is.