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ir_to_mesa: Add support for scalar * mat, vec * mat.

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This is not tested by piglit currently.
This commit is contained in:
Eric Anholt
2010-07-02 16:10:31 -07:00
parent b61f4241f3
commit 8f25d198e5
1 changed files with 36 additions and 0 deletions
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36
src/mesa/shader/ir_to_mesa.cpp
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@@ -686,6 +686,42 @@ ir_to_mesa_visitor::visit(ir_expression *ir)
src_column.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());