[Mesa-dev] [PATCH] anv: Advertise support for VK_FORMAT_R8_SRGB

[Jason Ekstrand]

Unreal Engine 4 seems to really like this format for some reason.  We
don't technically have the hardware format but we do have L8_SRGB.  It's
easy enough to fake with that and a swizzle.
---
 src/intel/vulkan/anv_formats.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/intel/vulkan/anv_formats.c b/src/intel/vulkan/anv_formats.c
index 0bc81d1..3535c09 100644
--- a/src/intel/vulkan/anv_formats.c
+++ b/src/intel/vulkan/anv_formats.c
@@ -74,7 +74,8 @@ static const struct anv_format anv_formats[] = {
    fmt(VK_FORMAT_R8_SSCALED,              ISL_FORMAT_R8_SSCALED),
    fmt(VK_FORMAT_R8_UINT,                 ISL_FORMAT_R8_UINT),
    fmt(VK_FORMAT_R8_SINT,                 ISL_FORMAT_R8_SINT),
-   fmt(VK_FORMAT_R8_SRGB,                 ISL_FORMAT_UNSUPPORTED),
+   swiz_fmt(VK_FORMAT_R8_SRGB,            ISL_FORMAT_L8_UNORM_SRGB,
+                                          _ISL_SWIZZLE(RED, ZERO, ZERO, ONE)),
    fmt(VK_FORMAT_R8G8_UNORM,              ISL_FORMAT_R8G8_UNORM),
    fmt(VK_FORMAT_R8G8_SNORM,              ISL_FORMAT_R8G8_SNORM),
    fmt(VK_FORMAT_R8G8_USCALED,            ISL_FORMAT_R8G8_USCALED),
-- 
2.5.0.400.gff86faf