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-rw-r--r--src/gallium/auxiliary/tgsi/tgsi_util.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/src/gallium/auxiliary/tgsi/tgsi_util.c b/src/gallium/auxiliary/tgsi/tgsi_util.c
index 3ec5496416..08e7e89bd6 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_util.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_util.c
@@ -262,19 +262,20 @@ tgsi_util_get_inst_usage_mask(const struct tgsi_full_instruction *inst,
case TGSI_OPCODE_TXL:
case TGSI_OPCODE_TXP:
if (src_idx == 0) {
+ /* Note that the SHADOW variants use the Z component too */
switch (inst->Texture.Texture) {
case TGSI_TEXTURE_1D:
- case TGSI_TEXTURE_SHADOW1D:
read_mask = TGSI_WRITEMASK_X;
break;
-
+ case TGSI_TEXTURE_SHADOW1D:
+ read_mask = TGSI_WRITEMASK_XZ;
+ break;
case TGSI_TEXTURE_2D:
case TGSI_TEXTURE_RECT:
- case TGSI_TEXTURE_SHADOW2D:
- case TGSI_TEXTURE_SHADOWRECT:
read_mask = TGSI_WRITEMASK_XY;
break;
-
+ case TGSI_TEXTURE_SHADOW2D:
+ case TGSI_TEXTURE_SHADOWRECT:
case TGSI_TEXTURE_3D:
case TGSI_TEXTURE_CUBE:
read_mask = TGSI_WRITEMASK_XYZ;