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ir_to_mesa: Add support for adding/subtracting matrices.

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This isn't really tested, but didn't break normal vector add/sub.
This commit is contained in:
Eric Anholt
2010-07-07 17:08:58 -07:00
parent 69676fc6a3
commit b4d0c0e0ee
1 changed files with 39 additions and 3 deletions
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42
src/mesa/shader/ir_to_mesa.cpp
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@@ -178,6 +178,13 @@ public:
ir_to_mesa_src_reg src0,
ir_to_mesa_src_reg src1);
void ir_to_mesa_emit_addsub(ir_expression *ir,
enum prog_opcode opcode,
struct ir_to_mesa_src_reg result_src,
struct ir_to_mesa_dst_reg result_dst,
struct ir_to_mesa_src_reg op0,
struct ir_to_mesa_src_reg op1);
int *sampler_map;
int sampler_map_size;
@@ -530,6 +537,32 @@ ir_to_mesa_visitor::visit(ir_function *ir)
}
}
void
ir_to_mesa_visitor::ir_to_mesa_emit_addsub(ir_expression *ir,
enum prog_opcode opcode,
struct ir_to_mesa_src_reg result_src,
struct ir_to_mesa_dst_reg result_dst,
struct ir_to_mesa_src_reg op0,
struct ir_to_mesa_src_reg op1)
{
ir_to_mesa_dst_reg dst_column = result_dst;
int matrix_columns;
if (ir->operands[0]->type->is_matrix())
matrix_columns = ir->operands[0]->type->matrix_columns;
else
matrix_columns = ir->operands[1]->type->matrix_columns;
for (int i = 0; i < matrix_columns; i++) {
ir_to_mesa_emit_op2(ir, opcode, dst_column, op0, op1);
dst_column.index++;
if (ir->operands[0]->type->is_matrix())
op0.index++;
if (ir->operands[1]->type->is_matrix())
op1.index++;
}
}
void
ir_to_mesa_visitor::visit(ir_expression *ir)
{
@@ -554,7 +587,8 @@ ir_to_mesa_visitor::visit(ir_expression *ir)
/* Only expression implemented for matrices yet */
assert(!ir->operands[operand]->type->is_matrix() ||
ir->operation == ir_binop_mul);
ir->operation == ir_binop_mul ||
ir->operation == ir_binop_add);
}
this->result.file = PROGRAM_UNDEFINED;
@@ -618,10 +652,12 @@ ir_to_mesa_visitor::visit(ir_expression *ir)
break;
case ir_binop_add:
ir_to_mesa_emit_op2(ir, OPCODE_ADD, result_dst, op[0], op[1]);
ir_to_mesa_emit_addsub(ir, OPCODE_ADD,
result_src, result_dst, op[0], op[1]);
break;
case ir_binop_sub:
ir_to_mesa_emit_op2(ir, OPCODE_SUB, result_dst, op[0], op[1]);
ir_to_mesa_emit_addsub(ir, OPCODE_SUB,
result_src, result_dst, op[0], op[1]);
break;
case ir_binop_mul: