1/*
2 * Copyright 2016 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8
9#include "src/gpu/GrShaderCaps.h"
10#include "src/gpu/GrShaderVar.h"
11
12static const char* type_modifier_string(GrShaderVar::TypeModifier t) {
13 switch (t) {
14 case GrShaderVar::TypeModifier::None: return "";
15 case GrShaderVar::TypeModifier::In: return "in";
16 case GrShaderVar::TypeModifier::InOut: return "inout";
17 case GrShaderVar::TypeModifier::Out: return "out";
18 case GrShaderVar::TypeModifier::Uniform: return "uniform";
19 }
20 SK_ABORT("Unknown shader variable type modifier.");
21}
22
23void GrShaderVar::appendDecl(const GrShaderCaps* shaderCaps, SkString* out) const {
24 if (!fLayoutQualifier.isEmpty()) {
25 out->appendf("layout(%s) ", fLayoutQualifier.c_str());
26 }
27 if (!fExtraModifiers.isEmpty()) {
28 out->appendf("%s ", fExtraModifiers.c_str());
29 }
30 if (this->getTypeModifier() != TypeModifier::None) {
31 out->appendf("%s ", type_modifier_string(this->getTypeModifier()));
32 }
33 GrSLType effectiveType = this->getType();
34 if (this->isArray()) {
35 if (this->isUnsizedArray()) {
36 out->appendf("%s %s[]", GrGLSLTypeString(effectiveType), this->getName().c_str());
37 } else {
38 SkASSERT(this->getArrayCount() > 0);
39 out->appendf("%s %s[%d]",
40 GrGLSLTypeString(effectiveType),
41 this->getName().c_str(),
42 this->getArrayCount());
43 }
44 } else {
45 out->appendf("%s %s", GrGLSLTypeString(effectiveType), this->getName().c_str());
46 }
47}
48