[Mesa-dev] [PATCH 1/2] anv/formats: Update the BC1_RGB mappings

[Jason Ekstrand]

rb

On Thu, May 11, 2017 at 4:46 PM, Nanley Chery <nanleychery at gmail.com> wrote:

> The DXT1_RGB* format does not provide the correct behavior for Vulkan in
> the case where color_0 <= color_1. BC1_RGB_UNORM with a alpha set to 1
> provides the behavior which matches the spec.
>
> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=100925
> Cc: <mesa-stable at lists.freedesktop.org>
> Signed-off-by: Nanley Chery <nanley.g.chery at intel.com>
> ---
>  src/intel/vulkan/anv_formats.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/src/intel/vulkan/anv_formats.c b/src/intel/vulkan/anv_
> formats.c
> index c39cec3800..25801e8b06 100644
> --- a/src/intel/vulkan/anv_formats.c
> +++ b/src/intel/vulkan/anv_formats.c
> @@ -179,8 +179,8 @@ static const struct anv_format anv_formats[] = {
>     fmt(VK_FORMAT_D24_UNORM_S8_UINT,       ISL_FORMAT_R24_UNORM_X8_
> TYPELESS),
>     fmt(VK_FORMAT_D32_SFLOAT_S8_UINT,      ISL_FORMAT_R32_FLOAT),
>
> -   fmt(VK_FORMAT_BC1_RGB_UNORM_BLOCK,     ISL_FORMAT_DXT1_RGB),
> -   fmt(VK_FORMAT_BC1_RGB_SRGB_BLOCK,      ISL_FORMAT_DXT1_RGB_SRGB),
> +   swiz_fmt(VK_FORMAT_BC1_RGB_UNORM_BLOCK,     ISL_FORMAT_BC1_UNORM,
> RGB1),
> +   swiz_fmt(VK_FORMAT_BC1_RGB_SRGB_BLOCK,
> ISL_FORMAT_BC1_UNORM_SRGB, RGB1),
>     fmt(VK_FORMAT_BC1_RGBA_UNORM_BLOCK,    ISL_FORMAT_BC1_UNORM),
>     fmt(VK_FORMAT_BC1_RGBA_SRGB_BLOCK,     ISL_FORMAT_BC1_UNORM_SRGB),
>     fmt(VK_FORMAT_BC2_UNORM_BLOCK,         ISL_FORMAT_BC2_UNORM),
> --
> 2.12.2
>
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> mesa-dev at lists.freedesktop.org
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>
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