I've tested the game with AMD graphics card override under Wine (VideoPciVendorID 0x1002, VideoPciDeviceId 0x67df) and it seems to fix the rendering on its own. So the game expects _R5G6B5 to have SRGB reads supported only if detects the GPU as Nvidia (at least), otherwise it works some other way. Yet I suppose adding the SRGB read support as on Nvidia might be a valid fix unless we want to make the support depend on the reported video card.
On 1/21/20 16:53, Paul Gofman wrote:
All of them are supported on Nvidia GeForce GT 650M where I tested that on Windows. All but _X1R5G5B5 are also supported on Intel. If _R5G6B5 is not supported on AMD then probably Warhammer takes some other path on AMD. I don't have an AMD to test that but I can try spoofing AMD in Wine registry keys to see if it makes any difference. In case it does, it might be possible to find out how it works on AMD.
On 1/21/20 16:27, Henri Verbeet wrote:
On Mon, 13 Jan 2020 at 19:02, Paul Gofman gofmanp@gmail.com wrote:
case D3DFMT_A1R5G5B5:case D3DFMT_X1R5G5B5:case D3DFMT_R5G6B5:Are these generally supported on NVIDIA? They don't appear to be supported on my AMD system. That's not necessarily an issue, but does raise the question whether applications can really depend on these formats supporting sRGB reads.