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i965: Override swizzles for integer luminance formats.

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The hardware's integer luminance formats are completely unusable;
currently we fall back to RGBA.  This means we need to override
the texture swizzle to obtain the XXX1 values expected for luminance
formats.

Fixes spec/EXT_texture_integer/texwrap formats bordercolor [swizzled]
on Broadwell - 100% of border color tests now pass on Broadwell.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Chris Forbes <chrisf@ijw.co.nz>
Cc: mesa-stable@lists.freedesktop.org
This commit is contained in:
Kenneth Graunke
2015-02-06 02:06:27 -08:00
parent b16de0b713
commit 8cb18760cc
1 changed files with 8 additions and 0 deletions
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src/mesa/drivers/dri/i965/brw_wm_surface_state.c
+8
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@@ -199,6 +199,14 @@ brw_get_texture_swizzle(const struct gl_context *ctx,
swizzles[1] = SWIZZLE_ZERO;
swizzles[2] = SWIZZLE_ZERO;
break;
case GL_LUMINANCE:
if (t->_IsIntegerFormat) {
swizzles[0] = SWIZZLE_X;
swizzles[1] = SWIZZLE_X;
swizzles[2] = SWIZZLE_X;
swizzles[3] = SWIZZLE_ONE;
}
break;
case GL_RED:
case GL_RG:
case GL_RGB: