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update TexturesUsed[] in slang_update_inputs_outputs()

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This commit is contained in:
Brian 2007-01-04 17:43:53 -07:00
parent 64f78dd6a8
commit 4428e8f20f
1 changed files with 10 additions and 0 deletions
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10
src/mesa/shader/slang/slang_link2.c
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@ -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);
}
}
}