diff options
Diffstat (limited to 'src')
-rw-r--r-- | src/mesa/shader/program.c | 49 | ||||
-rw-r--r-- | src/mesa/shader/program.h | 3 |
2 files changed, 46 insertions, 6 deletions
diff --git a/src/mesa/shader/program.c b/src/mesa/shader/program.c index adc70009955..044d6449acc 100644 --- a/src/mesa/shader/program.c +++ b/src/mesa/shader/program.c @@ -214,11 +214,17 @@ _mesa_init_program_struct( GLcontext *ctx, struct gl_program *prog, { (void) ctx; if (prog) { + GLuint i; + _mesa_bzero(prog, sizeof(*prog)); prog->Id = id; prog->Target = target; prog->Resident = GL_TRUE; prog->RefCount = 1; prog->Format = GL_PROGRAM_FORMAT_ASCII_ARB; + + /* default mapping from samplers to texture units */ + for (i = 0; i < MAX_SAMPLERS; i++) + prog->SamplerUnits[i] = i; } return prog; @@ -430,6 +436,7 @@ _mesa_clone_program(GLcontext *ctx, const struct gl_program *prog) prog->NumInstructions); clone->InputsRead = prog->InputsRead; clone->OutputsWritten = prog->OutputsWritten; + clone->SamplersUsed = prog->SamplersUsed; memcpy(clone->TexturesUsed, prog->TexturesUsed, sizeof(prog->TexturesUsed)); if (prog->Parameters) @@ -544,6 +551,7 @@ replace_registers(struct prog_instruction *inst, GLuint numInst, { GLuint i, j; for (i = 0; i < numInst; i++) { + /* src regs */ for (j = 0; j < _mesa_num_inst_src_regs(inst->Opcode); j++) { if (inst[i].SrcReg[j].File == oldFile && inst[i].SrcReg[j].Index == oldIndex) { @@ -551,6 +559,11 @@ replace_registers(struct prog_instruction *inst, GLuint numInst, inst[i].SrcReg[j].Index = newIndex; } } + /* dst reg */ + if (inst[i].DstReg.File == oldFile && inst[i].DstReg.Index == oldIndex) { + inst[i].DstReg.File = newFile; + inst[i].DstReg.Index = newIndex; + } } } @@ -584,7 +597,8 @@ adjust_param_indexes(struct prog_instruction *inst, GLuint numInst, */ struct gl_program * _mesa_combine_programs(GLcontext *ctx, - struct gl_program *progA, struct gl_program *progB) + const struct gl_program *progA, + const struct gl_program *progB) { struct prog_instruction *newInst; struct gl_program *newProg; @@ -592,6 +606,7 @@ _mesa_combine_programs(GLcontext *ctx, const GLuint lenB = progB->NumInstructions; const GLuint numParamsA = _mesa_num_parameters(progA->Parameters); const GLuint newLength = lenA + lenB; + GLbitfield inputsB; GLuint i; ASSERT(progA->Target == progB->Target); @@ -613,17 +628,41 @@ _mesa_combine_programs(GLcontext *ctx, newProg->NumInstructions = newLength; if (newProg->Target == GL_FRAGMENT_PROGRAM_ARB) { - /* connect color outputs/inputs */ + struct gl_fragment_program *fprogA, *fprogB, *newFprog; + fprogA = (struct gl_fragment_program *) progA; + fprogB = (struct gl_fragment_program *) progB; + newFprog = (struct gl_fragment_program *) newProg; + + newFprog->UsesKill = fprogA->UsesKill || fprogB->UsesKill; + + /* Connect color outputs of fprogA to color inputs of fprogB, via a + * new temporary register. + */ if ((progA->OutputsWritten & (1 << FRAG_RESULT_COLR)) && (progB->InputsRead & (1 << FRAG_ATTRIB_COL0))) { + GLint tempReg = _mesa_find_free_register(newProg, PROGRAM_TEMPORARY); + if (!tempReg) { + _mesa_problem(ctx, "No free temp regs found in " + "_mesa_combine_programs(), using 31"); + tempReg = 31; + } + /* replace writes to result.color[0] with tempReg */ + replace_registers(newInst, lenA, + PROGRAM_OUTPUT, FRAG_RESULT_COLR, + PROGRAM_TEMPORARY, tempReg); + /* replace reads from input.color[0] with tempReg */ replace_registers(newInst + lenA, lenB, PROGRAM_INPUT, FRAG_ATTRIB_COL0, - PROGRAM_OUTPUT, FRAG_RESULT_COLR); + PROGRAM_TEMPORARY, tempReg); } - newProg->InputsRead = progA->InputsRead; - newProg->InputsRead |= (progB->InputsRead & ~(1 << FRAG_ATTRIB_COL0)); + inputsB = progB->InputsRead; + if (progA->OutputsWritten & (1 << FRAG_RESULT_COLR)) { + inputsB &= ~(1 << FRAG_ATTRIB_COL0); + } + newProg->InputsRead = progA->InputsRead | inputsB; newProg->OutputsWritten = progB->OutputsWritten; + newProg->SamplersUsed = progA->SamplersUsed | progB->SamplersUsed; } else { /* vertex program */ diff --git a/src/mesa/shader/program.h b/src/mesa/shader/program.h index 0f0d6060a9e..f1a69a2c016 100644 --- a/src/mesa/shader/program.h +++ b/src/mesa/shader/program.h @@ -117,7 +117,8 @@ _mesa_insert_instructions(struct gl_program *prog, GLuint start, GLuint count); extern struct gl_program * _mesa_combine_programs(GLcontext *ctx, - struct gl_program *progA, struct gl_program *progB); + const struct gl_program *progA, + const struct gl_program *progB); extern GLint _mesa_find_free_register(const struct gl_program *prog, GLuint regFile); |