diff options
Diffstat (limited to 'src/mesa')
| -rw-r--r-- | src/mesa/shader/slang/slang_link2.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/mesa/shader/slang/slang_link2.c b/src/mesa/shader/slang/slang_link2.c index f68eaca167c..33813fecc4a 100644 --- a/src/mesa/shader/slang/slang_link2.c +++ b/src/mesa/shader/slang/slang_link2.c @@ -296,6 +296,7 @@ slang_resolve_branches(struct gl_program *prog) /** * Scan program instructions to update the program's InputsRead and * OutputsWritten fields. + * Also, update the program's TexturesUsed[] array. */ static void slang_update_inputs_outputs(struct gl_program *prog) @@ -305,6 +306,9 @@ slang_update_inputs_outputs(struct gl_program *prog) prog->InputsRead = 0x0; prog->OutputsWritten = 0x0; + for (i = 0; i < MAX_TEXTURE_IMAGE_UNITS; i++) + prog->TexturesUsed[i] = 0; + for (i = 0; i < prog->NumInstructions; i++) { const struct prog_instruction *inst = prog->Instructions + i; const GLuint numSrc = _mesa_num_inst_src_regs(inst->Opcode); @@ -316,6 +320,12 @@ slang_update_inputs_outputs(struct gl_program *prog) if (inst->DstReg.File == PROGRAM_OUTPUT) { prog->OutputsWritten |= 1 << inst->DstReg.Index; } + + if (inst->Opcode == OPCODE_TEX || + inst->Opcode == OPCODE_TXB || + inst->Opcode == OPCODE_TXP) { + prog->TexturesUsed[inst->TexSrcUnit] |= (1 << inst->TexSrcTarget); + } } } |