diff options
| author | Brian Paul <brianp@vmware.com> | 2009-01-07 18:45:49 -0700 |
|---|---|---|
| committer | Brian Paul <brianp@vmware.com> | 2009-01-07 18:45:49 -0700 |
| commit | f68f94c2bc950405d4c91a1e5582a35ff4b15bdf (patch) | |
| tree | 66e6727a769eb45d447ac1d96db8922a1b700d37 /src | |
| parent | bc7d2c4f51c56787b261e6ab6f9a77d39c3493e1 (diff) | |
i965: allow gl_FragData[0] usage when there's only one color buffer
If gl_FragData[0] is written but not gl_FragCOlor, use the former.
Diffstat (limited to 'src')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_wm_fp.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_wm_fp.c b/src/mesa/drivers/dri/i965/brw_wm_fp.c index cb1e40097b..f4583877aa 100644 --- a/src/mesa/drivers/dri/i965/brw_wm_fp.c +++ b/src/mesa/drivers/dri/i965/brw_wm_fp.c @@ -864,9 +864,9 @@ static void emit_fog( struct brw_wm_compile *c ) static void emit_fb_write( struct brw_wm_compile *c ) { - struct prog_src_register outcolor = src_reg(PROGRAM_OUTPUT, FRAG_RESULT_COLR); struct prog_src_register payload_r0_depth = src_reg(PROGRAM_PAYLOAD, PAYLOAD_DEPTH); struct prog_src_register outdepth = src_reg(PROGRAM_OUTPUT, FRAG_RESULT_DEPR); + struct prog_src_register outcolor; GLuint i; struct prog_instruction *inst, *last_inst; @@ -890,7 +890,14 @@ static void emit_fb_write( struct brw_wm_compile *c ) } } last_inst->Sampler |= 1; //eot - }else { + } + else { + /* if gl_FragData[0] is written, use it, else use gl_FragColor */ + if (c->fp->program.Base.OutputsWritten & (1 << FRAG_RESULT_DATA0)) + outcolor = src_reg(PROGRAM_OUTPUT, FRAG_RESULT_DATA0); + else + outcolor = src_reg(PROGRAM_OUTPUT, FRAG_RESULT_COLR); + 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); |