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compute InputsRead/OutputsWritten with slang_update_inputs_outputs()

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This commit is contained in:
Brian 2007-01-04 17:30:30 -07:00
parent c9db223f90
commit 64f78dd6a8
2 changed files with 31 additions and 20 deletions
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20
src/mesa/shader/slang/slang_emit.c
View file

@ -625,24 +625,6 @@ static GLint
slang_alloc_varying(struct gl_program *prog, const char *name)
{
GLint i = _mesa_add_varying(prog->Varying, name, 4); /* XXX fix size */
#if 0
if (prog->Target == GL_VERTEX_PROGRAM_ARB) {
#ifdef OLD_LINK
i += VERT_RESULT_VAR0;
prog->OutputsWritten |= (1 << i);
#else
prog->OutputsWritten |= (1 << (i + VERT_RESULT_VAR0));
#endif
}
else {
#ifdef OLD_LINK
i += FRAG_ATTRIB_VAR0;
prog->InputsRead |= (1 << i);
#else
prog->InputsRead |= (1 << (i + FRAG_ATTRIB_VAR0));
#endif
}
#endif
return i;
}
@ -746,7 +728,6 @@ slang_resolve_storage(slang_gen_context *gc, slang_ir_node *n,
n->Store->File = PROGRAM_INPUT;
n->Store->Index = i;
assert(n->Store->Size > 0);
prog->InputsRead |= (1 << i);
return;
}
@ -754,7 +735,6 @@ slang_resolve_storage(slang_gen_context *gc, slang_ir_node *n,
if (i >= 0) {
n->Store->File = PROGRAM_OUTPUT;
n->Store->Index = i;
prog->OutputsWritten |= (1 << i);
return;
}

31
src/mesa/shader/slang/slang_link2.c
View file

@ -293,6 +293,34 @@ slang_resolve_branches(struct gl_program *prog)
}
/**
* Scan program instructions to update the program's InputsRead and
* OutputsWritten fields.
*/
static void
slang_update_inputs_outputs(struct gl_program *prog)
{
GLuint i, j;
prog->InputsRead = 0x0;
prog->OutputsWritten = 0x0;
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);
for (j = 0; j < numSrc; j++) {
if (inst->SrcReg[j].File == PROGRAM_INPUT) {
prog->InputsRead |= 1 << inst->SrcReg[j].Index;
}
}
if (inst->DstReg.File == PROGRAM_OUTPUT) {
prog->OutputsWritten |= 1 << inst->DstReg.Index;
}
}
}
/** cast wrapper */
static struct gl_vertex_program *
vertex_program(struct gl_program *prog)
@ -390,6 +418,9 @@ _slang_link2(GLcontext *ctx,
slang_resolve_branches(&shProg->VertexProgram->Base);
slang_resolve_branches(&shProg->FragmentProgram->Base);
slang_update_inputs_outputs(&shProg->VertexProgram->Base);
slang_update_inputs_outputs(&shProg->FragmentProgram->Base);
#if 1
printf("************** original fragment program\n");
_mesa_print_program(&fragProg->Base);