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ir_to_mesa: Support gl_FragData[] output.

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This commit is contained in:
Eric Anholt
2010-05-06 11:17:47 -07:00
parent 50ad96ebce
commit 48e282d8a2
1 changed files with 12 additions and 6 deletions
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ir_to_mesa.cpp
+12 -6
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@@ -465,17 +465,23 @@ ir_to_mesa_visitor::visit(ir_dereference_array *ir)
MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_Y, SWIZZLE_Y, SWIZZLE_Y),
MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_X, SWIZZLE_X, SWIZZLE_X),
};
ir_variable *var = ir->array->as_variable();
ir_constant *index = ir->array_index->constant_expression_value();
ir_variable *var = ir->var->as_variable();
ir_constant *index = ir->selector.array_index->constant_expression_value();
int file = PROGRAM_UNDEFINED;
int base_index = 0;
assert(var);
assert(index);
assert(strcmp(var->name, "gl_TexCoord") == 0);
if (strcmp(var->name, "gl_TexCoord") == 0) {
file = PROGRAM_INPUT;
base_index = FRAG_ATTRIB_TEX0;
} else if (strcmp(var->name, "gl_FragData") == 0) {
file = PROGRAM_OUTPUT;
base_index = FRAG_RESULT_DATA0;
}
tree = this->create_tree(MB_TERM_reference_vec4, ir, NULL, NULL);
ir_to_mesa_set_tree_reg(tree, PROGRAM_INPUT,
FRAG_ATTRIB_TEX0 + index->value.i[0]);
ir_to_mesa_set_tree_reg(tree, file, base_index + index->value.i[0]);
/* If the type is smaller than a vec4, replicate the last channel out. */
tree->src_reg.swizzle = size_swizzles[ir->type->vector_elements - 1];