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vkd3d-shader: Check more accurately if swizzle is required.

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Eliminates redundant OpVectorShuffle instructions.

Signed-off-by: Józef Kucia <jkucia@codeweavers.com>
Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Józef Kucia
2018-10-31 15:26:46 +01:00
committed by Alexandre Julliard
parent f97b745ae7
commit 11a65da62a
2 changed files with 21 additions and 3 deletions
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8
libs/vkd3d-shader/spirv.c
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@@ -2528,10 +2528,13 @@ static uint32_t vkd3d_dxbc_compiler_emit_swizzle_ext(struct vkd3d_dxbc_compiler
struct vkd3d_spirv_builder *builder = &compiler->spirv_builder;
uint32_t type_id, components[VKD3D_VEC4_SIZE];
if (swizzle == VKD3D_NO_SWIZZLE && write_mask == val_write_mask)
component_count = vkd3d_write_mask_component_count(write_mask);
val_component_count = vkd3d_write_mask_component_count(val_write_mask);
if (component_count == val_component_count
&& vkd3d_compact_swizzle(swizzle, write_mask) == vkd3d_compact_swizzle(VKD3D_NO_SWIZZLE, val_write_mask))
return val_id;
component_count = vkd3d_write_mask_component_count(write_mask);
type_id = vkd3d_spirv_get_type_id(builder, component_type, component_count);
if (component_count == 1)
@@ -2541,7 +2544,6 @@ static uint32_t vkd3d_dxbc_compiler_emit_swizzle_ext(struct vkd3d_dxbc_compiler
return vkd3d_spirv_build_op_composite_extract1(builder, type_id, val_id, component_idx);
}
val_component_count = vkd3d_write_mask_component_count(val_write_mask);
if (val_component_count == 1)
{
for (i = 0, component_idx = 0; i < VKD3D_VEC4_SIZE; ++i)