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ir_to_mesa: Add support for matrix * matrix.

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This commit is contained in:
Eric Anholt
2010-07-07 15:55:47 -07:00
parent e024c5c690
commit 9b68b88e43
1 changed files with 27 additions and 16 deletions
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43
src/mesa/shader/ir_to_mesa.cpp
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@@ -623,9 +623,9 @@ ir_to_mesa_visitor::visit(ir_expression *ir)
case ir_binop_sub:
ir_to_mesa_emit_op2(ir, OPCODE_SUB, result_dst, op[0], op[1]);
break;
case ir_binop_mul:
if (ir->operands[0]->type->is_matrix() &&
!ir->operands[1]->type->is_matrix()) {
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];
@@ -636,21 +636,32 @@ ir_to_mesa_visitor::visit(ir_expression *ir)
src_column.index++;
}
} else {
ir_to_mesa_src_reg src_column = op[0];
/* 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];
assert(!ir->operands[1]->type->is_matrix() ||
!"FINISHME: matrix * matrix");
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,
result_dst, src_column, src_chan);
} else {
ir_to_mesa_emit_op3(ir, OPCODE_MAD,
result_dst, src_column, src_chan,
result_src);
}
src_column.index++;
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()) {