diff options
| -rw-r--r-- | src/mesa/drivers/dri/r300/r300_fragprog.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/src/mesa/drivers/dri/r300/r300_fragprog.c b/src/mesa/drivers/dri/r300/r300_fragprog.c index b0681e28083..fb559e880ae 100644 --- a/src/mesa/drivers/dri/r300/r300_fragprog.c +++ b/src/mesa/drivers/dri/r300/r300_fragprog.c @@ -1304,9 +1304,14 @@ static void emit_arith(struct r300_fragment_program *rp, argc = r300_fpop[op].argc; if (REG_GET_TYPE(dest) == REG_TYPE_OUTPUT && - REG_GET_INDEX(dest) == FRAG_RESULT_DEPR) - mask &= ~WRITEMASK_XYZ; - + REG_GET_INDEX(dest) == FRAG_RESULT_DEPR) { + if (mask & WRITEMASK_Z) { + mask = WRITEMASK_W; + } else { + return; + } + } + emit_vop = GL_FALSE; emit_sop = GL_FALSE; if ((mask & WRITEMASK_XYZ) || vop == R300_FPI0_OUTC_DP3) |