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authorZou Nan hai <[email protected]>2008-03-21 18:16:11 +0800
committerZou Nan hai <[email protected]>2008-03-21 18:16:11 +0800
commit7936c614abc165270852bc5e7e316747a9cacdfb (patch)
treee15906685042100784a117b02bbf490645861697 /src/mesa
parent7233eabaf0072b7c50e4f26ec33738b5b89aad20 (diff)
[i965] multiple rendering target fix
Diffstat (limited to 'src/mesa')
-rw-r--r--src/mesa/drivers/dri/i965/brw_wm.h1
-rw-r--r--src/mesa/drivers/dri/i965/brw_wm_fp.c38
2 files changed, 29 insertions, 10 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_wm.h b/src/mesa/drivers/dri/i965/brw_wm.h
index 5ca2a634c07..297617ee2dc 100644
--- a/src/mesa/drivers/dri/i965/brw_wm.h
+++ b/src/mesa/drivers/dri/i965/brw_wm.h
@@ -199,6 +199,7 @@ struct brw_wm_compile {
GLuint nr_fp_insns;
GLuint fp_temp;
GLuint fp_interp_emitted;
+ GLuint fp_fragcolor_emitted;
GLuint fp_deriv_emitted;
struct prog_src_register pixel_xy;
diff --git a/src/mesa/drivers/dri/i965/brw_wm_fp.c b/src/mesa/drivers/dri/i965/brw_wm_fp.c
index 621106f14dc..e90a3605381 100644
--- a/src/mesa/drivers/dri/i965/brw_wm_fp.c
+++ b/src/mesa/drivers/dri/i965/brw_wm_fp.c
@@ -863,25 +863,31 @@ static void emit_fb_write( struct brw_wm_compile *c )
struct prog_src_register outdepth = src_reg(PROGRAM_OUTPUT, FRAG_RESULT_DEPR);
GLuint i;
- struct prog_instruction *inst;
+ struct prog_instruction *inst, *last_inst;
struct brw_context *brw = c->func.brw;
/* inst->Sampler is not used by backend,
use it for fb write target and eot */
- inst = emit_op(c, WM_FB_WRITE, dst_mask(dst_undef(),0),
- 0, 0, 0, outcolor, payload_r0_depth, outdepth);
- inst->Sampler = (brw->state.nr_draw_regions > 1 ? 0: 1)|(0<<1);
-
if (brw->state.nr_draw_regions > 1) {
for (i = 0 ; i < brw->state.nr_draw_regions; i++) {
outcolor = src_reg(PROGRAM_OUTPUT, FRAG_RESULT_DATA0 + i);
- inst = emit_op(c,
+ last_inst = inst = emit_op(c,
WM_FB_WRITE, dst_mask(dst_undef(),0), 0, 0, 0,
outcolor, payload_r0_depth, outdepth);
- inst->Sampler = ((i == brw->state.nr_draw_regions - 1) ? 1: 0);
- inst->Sampler |= (i<<1);
+ inst->Sampler = (i<<1);
+ if (c->fp_fragcolor_emitted) {
+ outcolor = src_reg(PROGRAM_OUTPUT, FRAG_RESULT_COLR);
+ last_inst = inst = emit_op(c, WM_FB_WRITE, dst_mask(dst_undef(),0),
+ 0, 0, 0, outcolor, payload_r0_depth, outdepth);
+ inst->Sampler = (i<<1);
+ }
}
+ last_inst->Sampler |= 1; //eot
+ }else {
+ inst = emit_op(c, WM_FB_WRITE, dst_mask(dst_undef(),0),
+ 0, 0, 0, outcolor, payload_r0_depth, outdepth);
+ inst->Sampler = 1|(0<<1);
}
}
@@ -908,7 +914,15 @@ 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_COLR)
+ c->fp_fragcolor_emitted = 1;
+ }
+}
static void print_insns( const struct prog_instruction *insn,
GLuint nr )
@@ -953,12 +967,16 @@ 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);
+ }
+ for (insn = 0; insn < fp->program.Base.NumInstructions; insn++) {
+ const struct prog_instruction *inst = &fp->program.Base.Instructions[insn];
struct prog_instruction *out;
/* Check for INPUT values, emit INTERP instructions where
* necessary:
*/
- validate_src_regs(c, inst);
switch (inst->Opcode) {