On Wed, Nov 7, 2018 at 7:45 AM Gert Wollny <gert.wol...@collabora.com> wrote: > > Am Dienstag, den 06.11.2018, 15:28 -0500 schrieb Ilia Mirkin: > > On Tue, Nov 6, 2018 at 3:15 PM Gert Wollny <gert.wol...@collabora.com > > > wrote: > > > > > > > > > The extension has the status "not complete" but after reading is it > > > seems to describe what is needed from ARB_framebuffer_sRGB in GLES > > > 3.0, > > Well, after starting to hacking it up and reading the finer details it > turns out that EXT_sRGB is not providing what GLES 3.0 needs: > > EXT_sRGB says > """ > Accepted by the <format> and <internalformat> parameter of TexImage2D, > and TexImage3DOES. These are also accepted by <format> parameter > of TexSubImage2D and TexSubImage3DOES: > > SRGB_EXT 0x8C40 > SRGB_ALPHA_EXT 0x8C42 > > Accepted by the <internalformat> parameter of RenderbufferStorage: > > SRGB8_ALPHA8_EXT 0x8C43 > """ > > whereas GLES 3.0 only knows the internal formats SRGB8 and > SRGB8_ALPHA8 but it doesn't use the unsized SRGB_EXT and SRGB_ALPHA_EXT > at all, and certainaly not as accepted formats. > > Also there is > > """ > 4) What is the expectation for mipmap generation on SRGB textures? > Issue 24 from EXT_texture_sRGB gives two possible ways, will we leave > it similarly undefined, or is this not intended to be supported at all? > > No. This in not likely to be used much so for simplicity let's not > require it. This will generate an INVALID_OPERATION error. > """ > > which is also in conflict with GLES 3.0. > > Which brings me back to what I was talking about yesterday: For > properly calculating GLES 3.0 support a flag is needed that says sRGB > render targets are supported without the need that such a fbo > attachment can switch between linear and sRGB. > > Well, I'll think of something and send an RFC
Those are just small API-level differences, not differences in functionality. If you don't feel like actually doing those, you could create the EXT_sRGB enable flag, but not hook it up to an actual extension being enabled. -ilia _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-dev
