VK_FORMAT_B8G8R8A8_SRGB

MoltenVK Support

Viewing 4 posts - 1 through 4 (of 4 total)
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  • 2017-04-16 at 7:41 am #1213
    rextimmy
    Participant

      Hey There,

      Any chance we can get VK_FORMAT_B8G8R8A8_SRGB added to the formats supported with vkGetPhysicalDeviceSurfaceFormatsKHR on the macOS platform? I noticed VK_FORMAT_A8B8G8R8_SRGB_PACK32 is getting reported. Do forgive my metal noobness if MTLPixelFormatBGRA8Unorm_sRGB is not supported in the macOS metal implementation for a surface format (or whatever the metal equivalent is called).

      Cheers 🙂

      2017-04-18 at 9:42 pm #1214
      Bill Hollings
      Keymaster

        @rextimmy

        You are entirely correct. As you expected, the format VK_FORMAT_B8G8R8A8_SRGB is indeed supported as a surface format on both macOS and iOS by MoltenVK and Metal.

        The value VK_FORMAT_A8B8G8R8_SRGB_PACK32 is being reported incorrectly by the vkGetPhysicalDeviceSurfaceFormatsKHR() function. The VK_FORMAT_B8G8R8A8_SRGB value should be reported instead.

        We’ll fix this for the next release.

        Thanks for pointing out this issue.

        …Bill

        2017-04-19 at 1:14 am #1215
        rextimmy
        Participant

          Oh excellent it is supported, I actually didn’t even try forcing the format after checking with vkGetPhysicalDeviceSurfaceFormatsKHR, I was just resorting back to the regular BGRA8 format. Anyway, no dramas at all, very simple to work around this around until the next MoltenVK release.

          2017-04-24 at 9:28 am #1227
          rextimmy
          Participant

            The latest release with the fix works sweet, thanks bill.

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