+ if (!ctx->Shader.EmitNVTempInitialization)
+ return;
+
+ /* We'll swizzle up a zero temporary so we can use it for the
+ * ARL.
+ */
+ if (program->NumTemporaries == 0)
+ program->NumTemporaries = 1;
+
+ _mesa_insert_instructions(program, 0, program->NumTemporaries + 1);
+
+ for (i = 0; i < program->NumTemporaries; i++) {
+ struct prog_instruction *inst = &program->Instructions[i];
+
+ inst->Opcode = OPCODE_SWZ;
+ inst->DstReg.File = PROGRAM_TEMPORARY;
+ inst->DstReg.Index = i;
+ inst->DstReg.WriteMask = WRITEMASK_XYZW;
+ inst->SrcReg[0].File = PROGRAM_TEMPORARY;
+ inst->SrcReg[0].Index = 0;
+ inst->SrcReg[0].Swizzle = MAKE_SWIZZLE4(SWIZZLE_ZERO,
+ SWIZZLE_ZERO,
+ SWIZZLE_ZERO,
+ SWIZZLE_ZERO);
+ }
+
+ inst = &program->Instructions[i];
+ inst->Opcode = OPCODE_ARL;
+ inst->DstReg.File = PROGRAM_ADDRESS;
+ inst->DstReg.Index = 0;
+ inst->DstReg.WriteMask = WRITEMASK_XYZW;
+ inst->SrcReg[0].File = PROGRAM_TEMPORARY;
+ inst->SrcReg[0].Index = 0;
+ inst->SrcReg[0].Swizzle = SWIZZLE_XXXX;
+
+ if (program->NumAddressRegs == 0)
+ program->NumAddressRegs = 1;
+}
+
+void
+_mesa_setup_nv_temporary_count(GLcontext *ctx, struct gl_program *program)
+{
+ int i;
+
+ program->NumTemporaries = 0;
+ for (i = 0; i < program->NumInstructions; i++) {
+ struct prog_instruction *inst = &program->Instructions[i];
+
+ if (inst->DstReg.File == PROGRAM_TEMPORARY) {
+ program->NumTemporaries = MAX2(program->NumTemporaries,
+ inst->DstReg.Index + 1);
+ }
+ if (inst->SrcReg[0].File == PROGRAM_TEMPORARY) {
+ program->NumTemporaries = MAX2(program->NumTemporaries,
+ inst->SrcReg[0].Index + 1);
+ }
+ if (inst->SrcReg[1].File == PROGRAM_TEMPORARY) {
+ program->NumTemporaries = MAX2(program->NumTemporaries,
+ inst->SrcReg[1].Index + 1);
+ }
+ if (inst->SrcReg[2].File == PROGRAM_TEMPORARY) {
+ program->NumTemporaries = MAX2(program->NumTemporaries,
+ inst->SrcReg[2].Index + 1);
+ }
+ }
+}