Module: Mesa Branch: master Commit: 8520b15018ca10e2bc47c1db4f7378df6d3c2e99 URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=8520b15018ca10e2bc47c1db4f7378df6d3c2e99
Author: Nicolai Haehnle <[email protected]> Date: Sat Feb 14 17:06:06 2009 +0100 r300: Redirect constant TEX coordinates R3xx/R5xx fragment program texture constants must come from a hardware register instead of the constant file, so we redirect if necessary during the native rewrite phase. The symptoms of this bug started appearing when the Mesa fixed function texenvprogram code started using STATE_CURRENT_ATTRIB constants for texture coordinates when the corresponding attributes were constant across all vertices. Signed-off-by: Nicolai Haehnle <[email protected]> --- src/mesa/drivers/dri/r300/r300_fragprog.c | 13 +++++++++++++ src/mesa/drivers/dri/r300/r500_fragprog.c | 19 +++++++++++++++++++ 2 files changed, 32 insertions(+), 0 deletions(-) diff --git a/src/mesa/drivers/dri/r300/r300_fragprog.c b/src/mesa/drivers/dri/r300/r300_fragprog.c index 4ef7f2b..8d030c6 100644 --- a/src/mesa/drivers/dri/r300/r300_fragprog.c +++ b/src/mesa/drivers/dri/r300/r300_fragprog.c @@ -163,6 +163,19 @@ static GLboolean transform_TEX( } } + if (inst.SrcReg[0].File != PROGRAM_TEMPORARY && inst.SrcReg[0].File != PROGRAM_INPUT) { + int tmpreg = radeonFindFreeTemporary(t); + tgt = radeonAppendInstructions(t->Program, 1); + tgt->Opcode = OPCODE_MOV; + tgt->DstReg.File = PROGRAM_TEMPORARY; + tgt->DstReg.Index = tmpreg; + tgt->SrcReg[0] = inst.SrcReg[0]; + + reset_srcreg(&inst.SrcReg[0]); + inst.SrcReg[0].File = PROGRAM_TEMPORARY; + inst.SrcReg[0].Index = tmpreg; + } + tgt = radeonAppendInstructions(t->Program, 1); _mesa_copy_instructions(tgt, &inst, 1); diff --git a/src/mesa/drivers/dri/r300/r500_fragprog.c b/src/mesa/drivers/dri/r300/r500_fragprog.c index 75dae86..926ddd5 100644 --- a/src/mesa/drivers/dri/r300/r500_fragprog.c +++ b/src/mesa/drivers/dri/r300/r500_fragprog.c @@ -31,6 +31,12 @@ #include "radeon_program_alu.h" +static void reset_srcreg(struct prog_src_register* reg) +{ + _mesa_bzero(reg, sizeof(*reg)); + reg->Swizzle = SWIZZLE_NOOP; +} + static struct prog_src_register shadow_ambient(struct gl_program *program, int tmu) { gl_state_index fail_value_tokens[STATE_LENGTH] = { @@ -99,6 +105,19 @@ static GLboolean transform_TEX( destredirect = GL_TRUE; } + if (inst.SrcReg[0].File != PROGRAM_TEMPORARY && inst.SrcReg[0].File != PROGRAM_INPUT) { + int tmpreg = radeonFindFreeTemporary(t); + tgt = radeonAppendInstructions(t->Program, 1); + tgt->Opcode = OPCODE_MOV; + tgt->DstReg.File = PROGRAM_TEMPORARY; + tgt->DstReg.Index = tmpreg; + tgt->SrcReg[0] = inst.SrcReg[0]; + + reset_srcreg(&inst.SrcReg[0]); + inst.SrcReg[0].File = PROGRAM_TEMPORARY; + inst.SrcReg[0].Index = tmpreg; + } + tgt = radeonAppendInstructions(t->Program, 1); _mesa_copy_instructions(tgt, &inst, 1); _______________________________________________ mesa-commit mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/mesa-commit
