[Mesa-dev] [PATCH 4/4] i965: Add support for and expose EXT_texture_sRGB_R8

[Eric Engestrom]

On Thursday, 2018-11-15 19:01:24 +0100, Gert Wollny wrote:
> Emulate MESA_FORMAT_R_SRGB8 by using L8_UNORM_SRGB. This is possible
> because component swizzling is handled based on the mesa format and,
> hence, the a r001 swizzling can be used to correct the components.
> 
> Enables and makes pass (tested on Kabylake)
> 
>   dEQP-GLES31.functional.srgb_texture_decode.skip_decode.sr8.*
>   dEQP-GLES31.functional.texture.filtering.cube_array.formats.sr8*
> 
> Signed-off-by: Gert Wollny <gert.wollny at collabora.com>

Patches 1-3 are:
Reviewed-by: Eric Engestrom <eric.engestrom at intel.com>

Patch 4 is:
Acked-by: Eric Engestrom <eric.engestrom at intel.com>

> ---
>  src/mesa/drivers/dri/i965/brw_surface_formats.c | 1 +
>  src/mesa/drivers/dri/i965/intel_extensions.c    | 1 +
>  2 files changed, 2 insertions(+)
> 
> diff --git a/src/mesa/drivers/dri/i965/brw_surface_formats.c b/src/mesa/drivers/dri/i965/brw_surface_formats.c
> index 879cb42453..77476a8c7e 100644
> --- a/src/mesa/drivers/dri/i965/brw_surface_formats.c
> +++ b/src/mesa/drivers/dri/i965/brw_surface_formats.c
> @@ -67,6 +67,7 @@ brw_isl_format_for_mesa_format(mesa_format mesa_format)
>        [MESA_FORMAT_B8G8R8A8_SRGB] = ISL_FORMAT_B8G8R8A8_UNORM_SRGB,
>        [MESA_FORMAT_R8G8B8A8_SRGB] = ISL_FORMAT_R8G8B8A8_UNORM_SRGB,
>        [MESA_FORMAT_B8G8R8X8_SRGB] = ISL_FORMAT_B8G8R8X8_UNORM_SRGB,
> +      [MESA_FORMAT_R_SRGB8] = ISL_FORMAT_L8_UNORM_SRGB,
>        [MESA_FORMAT_L_SRGB8] = ISL_FORMAT_L8_UNORM_SRGB,
>        [MESA_FORMAT_L8A8_SRGB] = ISL_FORMAT_L8A8_UNORM_SRGB,
>        [MESA_FORMAT_SRGB_DXT1] = ISL_FORMAT_BC1_UNORM_SRGB,
> diff --git a/src/mesa/drivers/dri/i965/intel_extensions.c b/src/mesa/drivers/dri/i965/intel_extensions.c
> index d7e02efb54..6ec6248a70 100644
> --- a/src/mesa/drivers/dri/i965/intel_extensions.c
> +++ b/src/mesa/drivers/dri/i965/intel_extensions.c
> @@ -113,6 +113,7 @@ intelInitExtensions(struct gl_context *ctx)
>     ctx->Extensions.EXT_texture_snorm = true;
>     ctx->Extensions.EXT_texture_sRGB = true;
>     ctx->Extensions.EXT_texture_sRGB_decode = true;
> +   ctx->Extensions.EXT_texture_sRGB_R8 = true;
>     ctx->Extensions.EXT_texture_swizzle = true;
>     ctx->Extensions.EXT_texture_type_2_10_10_10_REV = true;
>     ctx->Extensions.EXT_vertex_array_bgra = true;
> -- 
> 2.19.1
> 
> _______________________________________________
> mesa-dev mailing list
> mesa-dev at lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/mesa-dev