SkGraphics.cpp 3.9 KB

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  1. /*
  2. * Copyright 2006 The Android Open Source Project
  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. #include "include/core/SkGraphics.h"
  8. #include "include/core/SkCanvas.h"
  9. #include "include/core/SkImageFilter.h"
  10. #include "include/core/SkMath.h"
  11. #include "include/core/SkMatrix.h"
  12. #include "include/core/SkPath.h"
  13. #include "include/core/SkPathEffect.h"
  14. #include "include/core/SkRefCnt.h"
  15. #include "include/core/SkShader.h"
  16. #include "include/core/SkStream.h"
  17. #include "include/core/SkTime.h"
  18. #include "src/core/SkBlitter.h"
  19. #include "src/core/SkCpu.h"
  20. #include "src/core/SkGeometry.h"
  21. #include "src/core/SkOpts.h"
  22. #include "src/core/SkResourceCache.h"
  23. #include "src/core/SkScalerContext.h"
  24. #include "src/core/SkStrikeCache.h"
  25. #include "src/core/SkTSearch.h"
  26. #include "src/core/SkTypefaceCache.h"
  27. #include "src/utils/SkUTF.h"
  28. #include <stdlib.h>
  29. void SkGraphics::Init() {
  30. // SkGraphics::Init() must be thread-safe and idempotent.
  31. SkCpu::CacheRuntimeFeatures();
  32. SkOpts::Init();
  33. }
  34. ///////////////////////////////////////////////////////////////////////////////
  35. void SkGraphics::DumpMemoryStatistics(SkTraceMemoryDump* dump) {
  36. SkResourceCache::DumpMemoryStatistics(dump);
  37. SkStrikeCache::DumpMemoryStatistics(dump);
  38. }
  39. void SkGraphics::PurgeAllCaches() {
  40. SkGraphics::PurgeFontCache();
  41. SkGraphics::PurgeResourceCache();
  42. SkImageFilter::PurgeCache();
  43. }
  44. ///////////////////////////////////////////////////////////////////////////////
  45. static const char kFontCacheLimitStr[] = "font-cache-limit";
  46. static const size_t kFontCacheLimitLen = sizeof(kFontCacheLimitStr) - 1;
  47. static const struct {
  48. const char* fStr;
  49. size_t fLen;
  50. size_t (*fFunc)(size_t);
  51. } gFlags[] = {
  52. { kFontCacheLimitStr, kFontCacheLimitLen, SkGraphics::SetFontCacheLimit }
  53. };
  54. /* flags are of the form param; or param=value; */
  55. void SkGraphics::SetFlags(const char* flags) {
  56. if (!flags) {
  57. return;
  58. }
  59. const char* nextSemi;
  60. do {
  61. size_t len = strlen(flags);
  62. const char* paramEnd = flags + len;
  63. const char* nextEqual = strchr(flags, '=');
  64. if (nextEqual && paramEnd > nextEqual) {
  65. paramEnd = nextEqual;
  66. }
  67. nextSemi = strchr(flags, ';');
  68. if (nextSemi && paramEnd > nextSemi) {
  69. paramEnd = nextSemi;
  70. }
  71. size_t paramLen = paramEnd - flags;
  72. for (int i = 0; i < (int)SK_ARRAY_COUNT(gFlags); ++i) {
  73. if (paramLen != gFlags[i].fLen) {
  74. continue;
  75. }
  76. if (strncmp(flags, gFlags[i].fStr, paramLen) == 0) {
  77. size_t val = 0;
  78. if (nextEqual) {
  79. val = (size_t) atoi(nextEqual + 1);
  80. }
  81. (gFlags[i].fFunc)(val);
  82. break;
  83. }
  84. }
  85. flags = nextSemi + 1;
  86. } while (nextSemi);
  87. }
  88. size_t SkGraphics::GetFontCacheLimit() {
  89. return SkStrikeCache::GlobalStrikeCache()->getCacheSizeLimit();
  90. }
  91. size_t SkGraphics::SetFontCacheLimit(size_t bytes) {
  92. return SkStrikeCache::GlobalStrikeCache()->setCacheSizeLimit(bytes);
  93. }
  94. size_t SkGraphics::GetFontCacheUsed() {
  95. return SkStrikeCache::GlobalStrikeCache()->getTotalMemoryUsed();
  96. }
  97. int SkGraphics::GetFontCacheCountLimit() {
  98. return SkStrikeCache::GlobalStrikeCache()->getCacheCountLimit();
  99. }
  100. int SkGraphics::SetFontCacheCountLimit(int count) {
  101. return SkStrikeCache::GlobalStrikeCache()->setCacheCountLimit(count);
  102. }
  103. int SkGraphics::GetFontCacheCountUsed() {
  104. return SkStrikeCache::GlobalStrikeCache()->getCacheCountUsed();
  105. }
  106. int SkGraphics::GetFontCachePointSizeLimit() {
  107. return SkStrikeCache::GlobalStrikeCache()->getCachePointSizeLimit();
  108. }
  109. int SkGraphics::SetFontCachePointSizeLimit(int limit) {
  110. return SkStrikeCache::GlobalStrikeCache()->setCachePointSizeLimit(limit);
  111. }
  112. void SkGraphics::PurgeFontCache() {
  113. SkStrikeCache::GlobalStrikeCache()->purgeAll();
  114. SkTypefaceCache::PurgeAll();
  115. }