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i965/fs: Pass fragment depth to the fb write as a fs_reg, not an ir_variable.

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This will be used for the ARB_fp change to use this backend.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Eric Anholt
2012-09-18 18:12:48 +02:00
parent 6589c0bd56
commit e7149d390c
2 changed files with 4 additions and 7 deletions
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2
src/mesa/drivers/dri/i965/brw_fs.h
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@@ -370,7 +370,7 @@ public:
int *params_remap;
struct hash_table *variable_ht;
ir_variable *frag_depth;
fs_reg frag_depth;
fs_reg outputs[BRW_MAX_DRAW_BUFFERS];
unsigned output_components[BRW_MAX_DRAW_BUFFERS];
fs_reg dual_src_output;

9
src/mesa/drivers/dri/i965/brw_fs_visitor.cpp
View File

@@ -83,7 +83,7 @@ fs_visitor::visit(ir_variable *ir)
this->output_components[i] = 4;
}
} else if (ir->location == FRAG_RESULT_DEPTH) {
this->frag_depth = ir;
this->frag_depth = *reg;
} else {
/* gl_FragData or a user-defined FS output */
assert(ir->location >= FRAG_RESULT_DATA0 &&
@@ -2111,10 +2111,8 @@ fs_visitor::emit_fb_writes()
if (c->computes_depth) {
/* Hand over gl_FragDepth. */
assert(this->frag_depth);
fs_reg depth = *(variable_storage(this->frag_depth));
emit(BRW_OPCODE_MOV, fs_reg(MRF, nr), depth);
assert(this->frag_depth.file != BAD_FILE);
emit(BRW_OPCODE_MOV, fs_reg(MRF, nr), this->frag_depth);
} else {
/* Pass through the payload depth. */
emit(BRW_OPCODE_MOV, fs_reg(MRF, nr),
@@ -2275,7 +2273,6 @@ fs_visitor::fs_visitor(struct brw_wm_compile *c, struct gl_shader_program *prog,
else
this->reg_null_cmp = reg_null_f;
this->frag_depth = NULL;
memset(this->outputs, 0, sizeof(this->outputs));
memset(this->output_components, 0, sizeof(this->output_components));
this->first_non_payload_grf = 0;