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authorEric Anholt <[email protected]>2010-07-12 17:57:46 -0700
committerEric Anholt <[email protected]>2010-07-12 19:50:49 -0700
commit4ca07882afad656bf0a0f56b68038ce556bceec4 (patch)
tree9b300a7d520df4b716a87abea89339a82672b496 /src/mesa/shader
parent15ded6327966fa5824e34f7291e624994457f9b5 (diff)
ir_to_mesa: Rely on ir_mat_op_to_vec for matrix multiplication support.
Diffstat (limited to 'src/mesa/shader')
-rw-r--r--src/mesa/shader/ir_to_mesa.cpp88
1 files changed, 5 insertions, 83 deletions
diff --git a/src/mesa/shader/ir_to_mesa.cpp b/src/mesa/shader/ir_to_mesa.cpp
index fc50d26a618..110fc100db5 100644
--- a/src/mesa/shader/ir_to_mesa.cpp
+++ b/src/mesa/shader/ir_to_mesa.cpp
@@ -588,9 +588,10 @@ ir_to_mesa_visitor::visit(ir_expression *ir)
}
op[operand] = this->result;
- /* Only expression implemented for matrices yet */
- assert(!ir->operands[operand]->type->is_matrix() ||
- ir->operation == ir_binop_mul);
+ /* Matrix expression operands should have been broken down to vector
+ * operations already.
+ */
+ assert(!ir->operands[operand]->type->is_matrix());
}
this->result.file = PROGRAM_UNDEFINED;
@@ -661,86 +662,7 @@ ir_to_mesa_visitor::visit(ir_expression *ir)
break;
case ir_binop_mul:
- if (ir->operands[0]->type->is_matrix()) {
- if (ir->operands[1]->type->is_scalar()) {
- ir_to_mesa_dst_reg dst_column = result_dst;
- ir_to_mesa_src_reg src_column = op[0];
- for (int i = 0; i < ir->operands[0]->type->matrix_columns; i++) {
- ir_to_mesa_emit_op2(ir, OPCODE_MUL,
- dst_column, src_column, op[1]);
- dst_column.index++;
- src_column.index++;
- }
- } else {
- /* matrix * vec or matrix * matrix */
- int op1_col;
- ir_to_mesa_dst_reg dst_column = result_dst;
- ir_to_mesa_src_reg dst_column_src;
- ir_to_mesa_src_reg src_chan = op[1];
-
- dst_column_src = ir_to_mesa_src_reg_from_dst(result_dst);
- for (op1_col = 0; op1_col < ir->operands[1]->type->matrix_columns;
- op1_col++) {
- ir_to_mesa_src_reg src_column = op[0];
-
- for (int i = 0; i < ir->operands[0]->type->matrix_columns; i++) {
- src_chan.swizzle = MAKE_SWIZZLE4(i, i, i, i);
- if (i == 0) {
- ir_to_mesa_emit_op2(ir, OPCODE_MUL,
- dst_column, src_column, src_chan);
- } else {
- ir_to_mesa_emit_op3(ir, OPCODE_MAD,
- dst_column, src_column, src_chan,
- dst_column_src);
- }
- src_column.index++;
- }
- src_chan.index++;
- dst_column.index++;
- dst_column_src.index++;
- }
- }
- } else if (ir->operands[1]->type->is_matrix()) {
- if (ir->operands[0]->type->is_scalar()) {
- ir_to_mesa_dst_reg dst_column = result_dst;
- ir_to_mesa_src_reg src_column = op[1];
- for (int i = 0; i < ir->operands[1]->type->matrix_columns; i++) {
- ir_to_mesa_emit_op2(ir, OPCODE_MUL,
- dst_column, src_column, op[0]);
- dst_column.index++;
- src_column.index++;
- }
- } else {
- ir_to_mesa_src_reg src_column = op[1];
- ir_to_mesa_dst_reg dst_chan = result_dst;
-
- /* FINISHME here and above: non-square matrices */
- assert(ir->operands[1]->type->vector_elements ==
- ir->operands[1]->type->matrix_columns);
-
- for (int i = 0; i < ir->operands[0]->type->vector_elements; i++) {
- dst_chan.writemask = (1 << i);
- switch (ir->operands[0]->type->vector_elements) {
- case 2:
- ir_to_mesa_emit_op2(ir, OPCODE_DP2, dst_chan, op[0], src_column);
- break;
- case 3:
- ir_to_mesa_emit_op2(ir, OPCODE_DP3, dst_chan, op[0], src_column);
- break;
- case 4:
- ir_to_mesa_emit_op2(ir, OPCODE_DP4, dst_chan, op[0], src_column);
- break;
- default:
- assert(0);
- }
- src_column.index++;
- }
- }
- } else {
- assert(!ir->operands[0]->type->is_matrix());
- assert(!ir->operands[1]->type->is_matrix());
- ir_to_mesa_emit_op2(ir, OPCODE_MUL, result_dst, op[0], op[1]);
- }
+ ir_to_mesa_emit_op2(ir, OPCODE_MUL, result_dst, op[0], op[1]);
break;
case ir_binop_div:
assert(!"not reached: should be handled by ir_div_to_mul_rcp");