diff options
| author | Andre Maasikas <amaasikas@gmail.com> | 2009-10-21 19:04:21 +0300 |
|---|---|---|
| committer | Andre Maasikas <amaasikas@gmail.com> | 2009-10-22 09:45:11 +0300 |
| commit | 869e20bcb7db9c6540eb6b538104303df738d302 (patch) | |
| tree | 7bd91e14550ea250db651b22da93f9823d4ee080 | |
| parent | a88c9296cb079ff42ef901113d0fe772228e6feb (diff) | |
r600: set barrier for tex inst if dst is used earlier, might overwrite it otherwise
| -rw-r--r-- | src/mesa/drivers/dri/r600/r700_fragprog.c | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/src/mesa/drivers/dri/r600/r700_fragprog.c b/src/mesa/drivers/dri/r600/r700_fragprog.c index 3736bce11c4..0f549ead9cc 100644 --- a/src/mesa/drivers/dri/r600/r700_fragprog.c +++ b/src/mesa/drivers/dri/r600/r700_fragprog.c @@ -135,15 +135,19 @@ GLboolean Find_Instruction_Dependencies_fp(struct r700_fragment_program *fp, { GLuint i, j; GLint * puiTEMPwrites; + GLint * puiTEMPreads; struct prog_instruction * pILInst; InstDeps *pInstDeps; struct prog_instruction * texcoord_DepInst; GLint nDepInstID; puiTEMPwrites = (GLint*) MALLOC(sizeof(GLuint)*mesa_fp->Base.NumTemporaries); + puiTEMPreads = (GLint*) MALLOC(sizeof(GLuint)*mesa_fp->Base.NumTemporaries); + for(i=0; i<mesa_fp->Base.NumTemporaries; i++) { puiTEMPwrites[i] = -1; + puiTEMPreads[i] = -1; } pInstDeps = (InstDeps*)MALLOC(sizeof(InstDeps)*mesa_fp->Base.NumInstructions); @@ -167,6 +171,11 @@ GLboolean Find_Instruction_Dependencies_fp(struct r700_fragment_program *fp, { //Set dep. pInstDeps[i].nSrcDeps[j] = puiTEMPwrites[pILInst->SrcReg[j].Index]; + //Set first read + if(puiTEMPreads[pILInst->SrcReg[j].Index] < 0 ) + { + puiTEMPreads[pILInst->SrcReg[j].Index] = i; + } } else { @@ -177,8 +186,6 @@ GLboolean Find_Instruction_Dependencies_fp(struct r700_fragment_program *fp, fp->r700AsmCode.pInstDeps = pInstDeps; - FREE(puiTEMPwrites); - //Find dep for tex inst for(i=0; i<mesa_fp->Base.NumInstructions; i++) { @@ -203,9 +210,25 @@ GLboolean Find_Instruction_Dependencies_fp(struct r700_fragment_program *fp, { //... other deps? } } + // make sure that we dont overwrite src used earlier + nDepInstID = puiTEMPreads[pILInst->DstReg.Index]; + if(nDepInstID < i) + { + pInstDeps[i].nDstDep = puiTEMPreads[pILInst->DstReg.Index]; + texcoord_DepInst = &(mesa_fp->Base.Instructions[nDepInstID]); + if(GL_TRUE == IsAlu(texcoord_DepInst->Opcode) ) + { + pInstDeps[nDepInstID].nDstDep = i; + } + + } + } } + FREE(puiTEMPwrites); + FREE(puiTEMPreads); + return GL_TRUE; } |