tgsi/scan: set correct usage mask for tex offsets in scan_src_operand

[mesa.git] / src / gallium / auxiliary / tgsi / tgsi_scan.c

diff --git a/src/gallium/auxiliary/tgsi/tgsi_scan.c b/src/gallium/auxiliary/tgsi/tgsi_scan.c
index ee9a261e1ac992ecc9e232591eb6fe38aafebb04..1f8904cddd5b62523b2f0b3661dff84ea9d1b347 100644 (file)
--- a/src/gallium/auxiliary/tgsi/tgsi_scan.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_scan.c
@@ -466,12 +466,12 @@ scan_instruction(struct tgsi_shader_info *info,
 
          src.Register.File = fullinst->TexOffsets[i].File;
          src.Register.Index = fullinst->TexOffsets[i].Index;
-         src.Register.SwizzleX = fullinst->TexOffsets[i].SwizzleX;
-         src.Register.SwizzleY = fullinst->TexOffsets[i].SwizzleY;
-         src.Register.SwizzleZ = fullinst->TexOffsets[i].SwizzleZ;
 
          /* The usage mask is suboptimal but should be safe. */
-         scan_src_operand(info, fullinst, &src, -1, TGSI_WRITEMASK_XYZ,
+         scan_src_operand(info, fullinst, &src, -1,
+                          (1 << fullinst->TexOffsets[i].SwizzleX) |
+                          (1 << fullinst->TexOffsets[i].SwizzleY) |
+                          (1 << fullinst->TexOffsets[i].SwizzleZ),
                           false, &is_mem_inst);
       }
    }