1/*
2 * Copyright 2012 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#include "GrTypes.h"
9#include "SkThread.h"       // for sk_atomic_inc
10
11// Well, the dummy_ "fix" caused a warning on windows, so hiding all of it
12// until we can find a universal fix.
13#if 0
14// This used to be a global scope, but we got a warning about unused variable
15// so we moved it into here. We just want it to compile, so we can test the
16// static asserts.
17static inline void dummy_function_to_avoid_unused_var_warning() {
18    GrCacheID::Key kAssertKey;
19    GR_STATIC_ASSERT(sizeof(kAssertKey.fData8) == sizeof(kAssertKey.fData32));
20    GR_STATIC_ASSERT(sizeof(kAssertKey.fData8) == sizeof(kAssertKey.fData64));
21    GR_STATIC_ASSERT(sizeof(kAssertKey.fData8) == sizeof(kAssertKey));
22}
23#endif
24
25GrCacheID::Domain GrCacheID::GenerateDomain() {
26    static int32_t gNextDomain = kInvalid_Domain + 1;
27
28    int32_t domain = sk_atomic_inc(&gNextDomain);
29    if (domain >= 1 << (8 * sizeof(Domain))) {
30        SkFAIL("Too many Cache Domains");
31    }
32
33    return static_cast<Domain>(domain);
34}
35