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i965/vec4: Correctly handle uniform sources in generate_tes_add_indirect_urb_offset

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Fixes failure in the new piglit test
tes-patch-input-array-vec2-index-invalid-rd.shader_test.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: mesa-stable@lists.freedesktop.org
This commit is contained in:
Ian Romanick
2018-06-15 19:39:56 -07:00
parent adad7e3aa8
commit 75666605c9
1 changed files with 14 additions and 1 deletions
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15
src/intel/compiler/brw_vec4_generator.cpp
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@@ -929,8 +929,21 @@ generate_tes_add_indirect_urb_offset(struct brw_codegen *p,
brw_set_default_mask_control(p, BRW_MASK_DISABLE); brw_set_default_mask_control(p, BRW_MASK_DISABLE);
brw_MOV(p, dst, header); brw_MOV(p, dst, header);
/* Uniforms will have a stride <0;4,1>, and we need to convert to <0;1,0>.
* Other values get <4;1,0>.
*/
struct brw_reg restrided_offset;
if (offset.vstride == BRW_VERTICAL_STRIDE_0 &&
offset.width == BRW_WIDTH_4 &&
offset.hstride == BRW_HORIZONTAL_STRIDE_1) {
restrided_offset = stride(offset, 0, 1, 0);
} else {
restrided_offset = stride(offset, 4, 1, 0);
}
/* m0.3-0.4: 128-bit-granular offsets into the URB from the handles */ /* m0.3-0.4: 128-bit-granular offsets into the URB from the handles */
brw_MOV(p, vec2(get_element_ud(dst, 3)), stride(offset, 4, 1, 0)); brw_MOV(p, vec2(get_element_ud(dst, 3)), restrided_offset);
brw_pop_insn_state(p); brw_pop_insn_state(p);
} }