prog_execute: Implement OPCODE_TXL
Fixes bugzilla #29628
diff --git a/src/mesa/program/prog_execute.c b/src/mesa/program/prog_execute.c
index 1222a0f..ff8c20c 100644
--- a/src/mesa/program/prog_execute.c
+++ b/src/mesa/program/prog_execute.c
@@ -1679,6 +1679,22 @@
store_vector4(inst, machine, color);
}
break;
+ case OPCODE_TXL:
+ /* Texel lookup with explicit LOD */
+ {
+ GLfloat texcoord[4], color[4], lod;
+
+ fetch_vector4(&inst->SrcReg[0], machine, texcoord);
+
+ /* texcoord[3] is the LOD */
+ lod = texcoord[3];
+
+ machine->FetchTexelLod(ctx, texcoord, lod,
+ machine->Samplers[inst->TexSrcUnit], color);
+
+ store_vector4(inst, machine, color);
+ }
+ break;
case OPCODE_TXP: /* GL_ARB_fragment_program only */
/* Texture lookup w/ projective divide */
{