DecodeFile.h 1.5 KB

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  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. #ifndef DecodeFile_DEFINED
  8. #define DecodeFile_DEFINED
  9. #include "include/codec/SkCodec.h"
  10. #include "include/core/SkBitmap.h"
  11. #include "include/core/SkData.h"
  12. #include "include/core/SkImage.h"
  13. static inline bool decode_file(sk_sp<SkData> data, SkBitmap* bitmap,
  14. SkColorType colorType = kN32_SkColorType,
  15. bool requireUnpremul = false) {
  16. std::unique_ptr<SkCodec> codec = SkCodec::MakeFromData(std::move(data));
  17. if (!codec) {
  18. return false;
  19. }
  20. SkImageInfo info = codec->getInfo().makeColorType(colorType);
  21. if (requireUnpremul && kPremul_SkAlphaType == info.alphaType()) {
  22. info = info.makeAlphaType(kUnpremul_SkAlphaType);
  23. }
  24. if (!bitmap->tryAllocPixels(info)) {
  25. return false;
  26. }
  27. return SkCodec::kSuccess == codec->getPixels(info, bitmap->getPixels(), bitmap->rowBytes());
  28. }
  29. static inline bool decode_file(const char* filename, SkBitmap* bitmap,
  30. SkColorType colorType = kN32_SkColorType,
  31. bool requireUnpremul = false) {
  32. return decode_file(SkData::MakeFromFileName(filename), bitmap, colorType, requireUnpremul);
  33. }
  34. static inline sk_sp<SkImage> decode_file(const char filename[]) {
  35. sk_sp<SkData> data(SkData::MakeFromFileName(filename));
  36. return data ? SkImage::MakeFromEncoded(data) : nullptr;
  37. }
  38. #endif // DecodeFile_DEFINED