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-rw-r--r--src/mesa/drivers/dri/i965/brw_wm.h1
-rw-r--r--src/mesa/drivers/dri/i965/brw_wm_fp.c53
2 files changed, 19 insertions, 35 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_wm.h b/src/mesa/drivers/dri/i965/brw_wm.h
index 40659f26025..5d1e4045928 100644
--- a/src/mesa/drivers/dri/i965/brw_wm.h
+++ b/src/mesa/drivers/dri/i965/brw_wm.h
@@ -218,7 +218,6 @@ struct brw_wm_compile {
GLuint nr_fp_insns;
GLuint fp_temp;
GLuint fp_interp_emitted;
- GLuint fp_fragcolor_emitted;
struct prog_src_register pixel_xy;
struct prog_src_register delta_xy;
diff --git a/src/mesa/drivers/dri/i965/brw_wm_fp.c b/src/mesa/drivers/dri/i965/brw_wm_fp.c
index 4759b289a0c..9ddbee2edf4 100644
--- a/src/mesa/drivers/dri/i965/brw_wm_fp.c
+++ b/src/mesa/drivers/dri/i965/brw_wm_fp.c
@@ -961,35 +961,31 @@ static void emit_render_target_writes( struct brw_wm_compile *c )
struct prog_src_register outcolor;
GLuint i;
- struct prog_instruction *inst, *last_inst = NULL;
+ struct prog_instruction *inst = NULL;
/* The inst->Aux field is used for FB write target and the EOT marker */
- if (c->key.nr_color_regions > 1) {
- for (i = 0 ; i < c->key.nr_color_regions; i++) {
- outcolor = src_reg(PROGRAM_OUTPUT, FRAG_RESULT_DATA0 + i);
- last_inst = inst = emit_op(c, WM_FB_WRITE, dst_mask(dst_undef(), 0),
- 0, outcolor, payload_r0_depth, outdepth);
- inst->Aux = INST_AUX_TARGET(i);
- if (c->fp_fragcolor_emitted) {
- outcolor = src_reg(PROGRAM_OUTPUT, FRAG_RESULT_COLOR);
- last_inst = inst = emit_op(c, WM_FB_WRITE, dst_mask(dst_undef(), 0),
- 0, outcolor, payload_r0_depth, outdepth);
- inst->Aux = INST_AUX_TARGET(i);
- }
+ for (i = 0; i < c->key.nr_color_regions; i++) {
+ if (c->fp->program.Base.OutputsWritten & (1 << FRAG_RESULT_COLOR)) {
+ outcolor = src_reg(PROGRAM_OUTPUT, FRAG_RESULT_COLOR);
+ } else {
+ outcolor = src_reg(PROGRAM_OUTPUT, FRAG_RESULT_DATA0 + i);
}
- last_inst->Aux |= INST_AUX_EOT;
+ inst = emit_op(c, WM_FB_WRITE, dst_mask(dst_undef(), 0),
+ 0, outcolor, payload_r0_depth, outdepth);
+ inst->Aux = INST_AUX_TARGET(i);
}
- else {
- /* if gl_FragData[0] is written, use it, else use gl_FragColor */
- if (c->fp->program.Base.OutputsWritten & BITFIELD64_BIT(FRAG_RESULT_DATA0))
- outcolor = src_reg(PROGRAM_OUTPUT, FRAG_RESULT_DATA0);
- else
- outcolor = src_reg(PROGRAM_OUTPUT, FRAG_RESULT_COLOR);
- inst = emit_op(c, WM_FB_WRITE, dst_mask(dst_undef(),0),
- 0, outcolor, payload_r0_depth, outdepth);
- inst->Aux = INST_AUX_EOT | INST_AUX_TARGET(0);
+ /* Mark the last FB write as final, or emit a dummy write if we had
+ * no render targets bound.
+ */
+ if (c->key.nr_color_regions != 0) {
+ inst->Aux |= INST_AUX_EOT;
+ } else {
+ inst = emit_op(c, WM_FB_WRITE, dst_mask(dst_undef(), 0),
+ 0, src_reg(PROGRAM_OUTPUT, FRAG_RESULT_COLOR),
+ payload_r0_depth, outdepth);
+ inst->Aux = INST_AUX_TARGET(0) | INST_AUX_EOT;
}
}
@@ -1015,16 +1011,6 @@ static void validate_src_regs( struct brw_wm_compile *c,
}
}
}
-
-static void validate_dst_regs( struct brw_wm_compile *c,
- const struct prog_instruction *inst )
-{
- if (inst->DstReg.File == PROGRAM_OUTPUT) {
- GLuint idx = inst->DstReg.Index;
- if (idx == FRAG_RESULT_COLOR)
- c->fp_fragcolor_emitted = 1;
- }
-}
static void print_insns( const struct prog_instruction *insn,
GLuint nr )
@@ -1083,7 +1069,6 @@ void brw_wm_pass_fp( struct brw_wm_compile *c )
for (insn = 0; insn < fp->program.Base.NumInstructions; insn++) {
const struct prog_instruction *inst = &fp->program.Base.Instructions[insn];
validate_src_regs(c, inst);
- validate_dst_regs(c, inst);
}
/* Loop over all instructions doing assorted simplifications and