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i965: Add support for and expose EXT_texture_sRGB_R8 

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@collabora.com>
Acked-by: Eric Engestrom <eric.engestrom@intel.com>
This commit is contained in:
Gert Wollny 2018-11-15 19:01:24 +01:00 committed by Gert Wollny
parent c5363869d4
commit 78fdc507a3
2 changed files with 2 additions and 0 deletions
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1
src/mesa/drivers/dri/i965/brw_surface_formats.c
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@ -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,

1
src/mesa/drivers/dri/i965/intel_extensions.c
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@ -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;