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ir_to_mesa: Respect EmitCondCodes for IF statements.

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Fixes glsl-vs-if-* for the 965 driver.
This commit is contained in:
Eric Anholt
2010-06-28 11:59:13 -07:00
parent 0a52e8b691
commit 854fd66cbb
1 changed files with 19 additions and 5 deletions
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24
src/mesa/shader/ir_to_mesa.cpp
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@@ -67,6 +67,7 @@ typedef struct ir_to_mesa_dst_reg {
int file; /**< PROGRAM_* from Mesa */
int index; /**< temporary index, VERT_ATTRIB_*, FRAG_ATTRIB_*, etc. */
int writemask; /**< Bitfield of WRITEMASK_[XYZW] */
GLuint cond_mask:4;
} ir_to_mesa_dst_reg;
extern ir_to_mesa_src_reg ir_to_mesa_undef;
@@ -78,6 +79,7 @@ public:
ir_to_mesa_src_reg src_reg[3];
/** Pointer to the ir source this tree came from for debugging */
ir_instruction *ir;
GLboolean cond_update;
};
class temp_entry : public exec_node {
@@ -293,6 +295,7 @@ ir_to_mesa_dst_reg_from_src(ir_to_mesa_src_reg reg)
dst_reg.file = reg.file;
dst_reg.index = reg.index;
dst_reg.writemask = WRITEMASK_XYZW;
dst_reg.cond_mask = COND_TR;
return dst_reg;
}
@@ -1142,14 +1145,24 @@ ir_to_mesa_visitor::visit(ir_return *ir)
void
ir_to_mesa_visitor::visit(ir_if *ir)
{
ir_to_mesa_instruction *if_inst, *else_inst = NULL;
ir_to_mesa_instruction *cond_inst, *if_inst, *else_inst = NULL;
ir->condition->accept(this);
assert(this->result.file != PROGRAM_UNDEFINED);
if_inst = ir_to_mesa_emit_op1(ir->condition,
OPCODE_IF, ir_to_mesa_undef_dst,
this->result);
if (ctx->Shader.EmitCondCodes) {
cond_inst = (ir_to_mesa_instruction *)this->instructions.get_tail();
cond_inst->cond_update = GL_TRUE;
if_inst = ir_to_mesa_emit_op1(ir->condition,
OPCODE_IF, ir_to_mesa_undef_dst,
ir_to_mesa_undef);
if_inst->dst_reg.cond_mask = COND_NE;
} else {
if_inst = ir_to_mesa_emit_op1(ir->condition,
OPCODE_IF, ir_to_mesa_undef_dst,
this->result);
}
this->instructions.push_tail(if_inst);
@@ -1391,9 +1404,10 @@ get_mesa_program(GLcontext *ctx, void *mem_ctx, struct glsl_shader *shader)
ir_to_mesa_instruction *inst = (ir_to_mesa_instruction *)iter.get();
mesa_inst->Opcode = inst->op;
mesa_inst->CondUpdate = inst->cond_update;
mesa_inst->DstReg.File = inst->dst_reg.file;
mesa_inst->DstReg.Index = inst->dst_reg.index;
mesa_inst->DstReg.CondMask = COND_TR;
mesa_inst->DstReg.CondMask = inst->dst_reg.cond_mask;
mesa_inst->DstReg.WriteMask = inst->dst_reg.writemask;
mesa_inst->SrcReg[0] = mesa_src_reg_from_ir_src_reg(inst->src_reg[0]);
mesa_inst->SrcReg[1] = mesa_src_reg_from_ir_src_reg(inst->src_reg[1]);