diff options
Diffstat (limited to 'src/mesa/shader/slang')
| -rw-r--r-- | src/mesa/shader/slang/slang_emit.c | 43 |
1 files changed, 24 insertions, 19 deletions
diff --git a/src/mesa/shader/slang/slang_emit.c b/src/mesa/shader/slang/slang_emit.c index cbc71f36f6b..eeaeab16266 100644 --- a/src/mesa/shader/slang/slang_emit.c +++ b/src/mesa/shader/slang/slang_emit.c @@ -232,6 +232,27 @@ storage_to_src_reg(struct prog_src_register *src, const slang_ir_storage *st) } +/* + * Setup an instrucion src register to point to a scalar constant. + */ +static void +constant_to_src_reg(struct prog_src_register *src, GLfloat val, + slang_emit_info *emitInfo) +{ + GLuint zeroSwizzle; + GLint zeroReg; + GLfloat value[4]; + + value[0] = val; + zeroReg = _mesa_add_unnamed_constant(emitInfo->prog->Parameters, + value, 1, &zeroSwizzle); + assert(zeroReg >= 0); + + src->File = PROGRAM_CONSTANT; + src->Index = zeroReg; + src->Swizzle = zeroSwizzle; +} + /** * Add new instruction at end of given program. @@ -556,14 +577,9 @@ emit_compare(slang_emit_info *emitInfo, slang_ir_node *n) storage_to_dst_reg(&inst->DstReg, n->Store, n->Writemask); } else if (size <= 4) { - static const GLfloat zero[4] = { 0, 0, 0, 0 }; - GLuint zeroSwizzle, swizzle; - GLint zeroReg = _mesa_add_unnamed_constant(emitInfo->prog->Parameters, - zero, 4, &zeroSwizzle); + GLuint swizzle; gl_inst_opcode dotOp; - assert(zeroReg >= 0); - assert(!n->Store); if (!n->Store) { if (!alloc_temp_storage(emitInfo, n, size)) /* 'size' bools */ @@ -606,9 +622,7 @@ emit_compare(slang_emit_info *emitInfo, slang_ir_node *n) /* compute tmp2.x = !tmp2.x via tmp2.x = (tmp2.x == 0) */ inst = new_instruction(emitInfo, OPCODE_SEQ); storage_to_src_reg(&inst->SrcReg[0], n->Store); - inst->SrcReg[1].File = PROGRAM_CONSTANT; - inst->SrcReg[1].Index = zeroReg; - inst->SrcReg[1].Swizzle = zeroSwizzle; + constant_to_src_reg(&inst->SrcReg[1], 0.0, emitInfo); storage_to_dst_reg(&inst->DstReg, n->Store, n->Writemask); inst->Comment = _mesa_strdup("Invert true/false"); } @@ -1029,16 +1043,8 @@ emit_cond(slang_emit_info *emitInfo, slang_ir_node *n) static struct prog_instruction * emit_not(slang_emit_info *emitInfo, slang_ir_node *n) { - GLfloat zero = 0.0; - slang_ir_storage st; struct prog_instruction *inst; - /* need zero constant */ - st.File = PROGRAM_CONSTANT; - st.Size = 1; - st.Index = _mesa_add_unnamed_constant(emitInfo->prog->Parameters, &zero, - 1, &st.Swizzle); - /* child expr */ (void) emit(emitInfo, n->Children[0]); /* XXXX if child instr is SGT convert to SLE, if SEQ, SNE, etc */ @@ -1050,8 +1056,7 @@ emit_not(slang_emit_info *emitInfo, slang_ir_node *n) inst = new_instruction(emitInfo, OPCODE_SEQ); storage_to_dst_reg(&inst->DstReg, n->Store, n->Writemask); storage_to_src_reg(&inst->SrcReg[0], n->Children[0]->Store); - storage_to_src_reg(&inst->SrcReg[1], &st); - + constant_to_src_reg(&inst->SrcReg[1], 0.0, emitInfo); free_temp_storage(emitInfo->vt, n->Children[0]); inst->Comment = _mesa_strdup("NOT"); |