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i965/gen7: Use R8_UINT stencil copy when sampling the stencil texture 

v2:
 * Check gen <= 7, rather than gen == 7. (Ian)

Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
This commit is contained in:
Jordan Justen 2016-06-11 16:41:18 -07:00
parent 8d78b096f8
commit 751682434e
1 changed files with 10 additions and 2 deletions
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12
src/mesa/drivers/dri/i965/brw_wm_surface_state.c
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@ -499,8 +499,16 @@ brw_update_texture_surface(struct gl_context *ctx,
}
if (obj->StencilSampling && firstImage->_BaseFormat == GL_DEPTH_STENCIL) {
assert(brw->gen >= 8);
mt = mt->stencil_mt;
if (brw->gen <= 7) {
assert(mt->r8stencil_mt && !mt->stencil_mt->r8stencil_needs_update);
mt = mt->r8stencil_mt;
} else {
mt = mt->stencil_mt;
}
format = BRW_SURFACEFORMAT_R8_UINT;
} else if (brw->gen <= 7 && mt->format == MESA_FORMAT_S_UINT8) {
assert(mt->r8stencil_mt && !mt->r8stencil_needs_update);
mt = mt->r8stencil_mt;
format = BRW_SURFACEFORMAT_R8_UINT;
}