diff options
| author | Nicolai Haehnle <nhaehnle@gmail.com> | 2008-07-27 15:14:07 +0200 |
|---|---|---|
| committer | Nicolai Haehnle <nhaehnle@gmail.com> | 2008-07-27 15:14:07 +0200 |
| commit | 1bdf5e09a049d8d60bf147f9d88bbdb2b8588752 (patch) | |
| tree | 0da93a8f33f96fd33a3d9124122f9dae62b5c967 | |
| parent | 85e44fcd51b2f2e0bb0c97161fdde1971767eefd (diff) | |
r500: Redirect TEX writes to output registers
While R500 fragment program texture instructions appear to support writemasks,
they cannot write to the output FIFO immediately, so we need to insert a MOV
for these instructions.
This fixes piglit's fp-fragment-position and fp-incomplete-tex tests.
| -rw-r--r-- | src/mesa/drivers/dri/r300/r500_fragprog.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/r300/r500_fragprog.c b/src/mesa/drivers/dri/r300/r500_fragprog.c index 7b18efa69d..c78deab2ac 100644 --- a/src/mesa/drivers/dri/r300/r500_fragprog.c +++ b/src/mesa/drivers/dri/r300/r500_fragprog.c @@ -74,6 +74,13 @@ static GLboolean transform_TEX( inst.DstReg.File = PROGRAM_TEMPORARY; inst.DstReg.Index = radeonFindFreeTemporary(t); inst.DstReg.WriteMask = WRITEMASK_XYZW; + } else if (inst.Opcode != OPCODE_KIL && inst.DstReg.File != PROGRAM_TEMPORARY) { + int tempreg = radeonFindFreeTemporary(t); + + inst.DstReg.File = PROGRAM_TEMPORARY; + inst.DstReg.Index = tempreg; + inst.DstReg.WriteMask = WRITEMASK_XYZW; + destredirect = GL_TRUE; } tgt = radeonAppendInstructions(t->Program, 1); |