diff options
| -rw-r--r-- | src/mesa/state_tracker/st_mesa_to_tgsi.c | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/src/mesa/state_tracker/st_mesa_to_tgsi.c b/src/mesa/state_tracker/st_mesa_to_tgsi.c index 01dc70b66e8..325aa201734 100644 --- a/src/mesa/state_tracker/st_mesa_to_tgsi.c +++ b/src/mesa/state_tracker/st_mesa_to_tgsi.c @@ -47,7 +47,9 @@ */ static GLuint map_register_file( - enum register_file file ) + enum register_file file, + GLuint index, + const GLuint immediateMapping[] ) { switch( file ) { case PROGRAM_UNDEFINED: @@ -56,10 +58,20 @@ map_register_file( return TGSI_FILE_TEMPORARY; //case PROGRAM_LOCAL_PARAM: //case PROGRAM_ENV_PARAM: + + /* Because of the longstanding problem with mesa arb shaders + * where constants, immediates and state variables are all + * bundled together as PROGRAM_STATE_VAR, we can't tell from the + * mesa register file whether this is a CONSTANT or an + * IMMEDIATE, hence we need all the other information. + */ case PROGRAM_STATE_VAR: case PROGRAM_NAMED_PARAM: case PROGRAM_UNIFORM: - return TGSI_FILE_CONSTANT; + if (immediateMapping[index] != ~0) + return TGSI_FILE_IMMEDIATE; + else + return TGSI_FILE_CONSTANT; case PROGRAM_CONSTANT: return TGSI_FILE_IMMEDIATE; case PROGRAM_INPUT: @@ -194,7 +206,7 @@ compile_instruction( fullinst->Instruction.NumSrcRegs = _mesa_num_inst_src_regs( inst->Opcode ); fulldst = &fullinst->FullDstRegisters[0]; - fulldst->DstRegister.File = map_register_file( inst->DstReg.File ); + fulldst->DstRegister.File = map_register_file( inst->DstReg.File, 0, NULL ); fulldst->DstRegister.Index = map_register_file_index( fulldst->DstRegister.File, inst->DstReg.Index, @@ -208,7 +220,9 @@ compile_instruction( GLuint j; fullsrc = &fullinst->FullSrcRegisters[i]; - fullsrc->SrcRegister.File = map_register_file( inst->SrcReg[i].File ); + fullsrc->SrcRegister.File = map_register_file( inst->SrcReg[i].File, + inst->SrcReg[i].Index, + immediateMapping ); fullsrc->SrcRegister.Index = map_register_file_index( fullsrc->SrcRegister.File, inst->SrcReg[i].Index, @@ -813,6 +827,8 @@ tgsi_translate_mesa_program( } /* immediates/literals */ + memset(immediates, ~0, sizeof(immediates)); + for (i = 0; program->Parameters && i < program->Parameters->NumParameters; i++) { if (program->Parameters->Parameters[i].Type == PROGRAM_CONSTANT) { |