| OLD | NEW |
| 1 /* | 1 /* |
| 2 * Copyright 2015 Google Inc. | 2 * Copyright 2015 Google Inc. |
| 3 * | 3 * |
| 4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
| 5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
| 6 */ | 6 */ |
| 7 | 7 |
| 8 #include "SkBmpMaskCodec.h" | 8 #include "SkBmpMaskCodec.h" |
| 9 #include "SkCodecPriv.h" | 9 #include "SkCodecPriv.h" |
| 10 #include "SkColorPriv.h" | 10 #include "SkColorPriv.h" |
| 11 | 11 |
| 12 /* | 12 /* |
| 13 * Creates an instance of the decoder | 13 * Creates an instance of the decoder |
| 14 */ | 14 */ |
| 15 SkBmpMaskCodec::SkBmpMaskCodec(const SkImageInfo& info, SkStream* stream, | 15 SkBmpMaskCodec::SkBmpMaskCodec(const SkImageInfo& info, SkStream* stream, |
| 16 uint16_t bitsPerPixel, SkMasks* masks, | 16 uint16_t bitsPerPixel, SkMasks* masks, |
| 17 SkBmpCodec::RowOrder rowOrder) | 17 SkBmpCodec::RowOrder rowOrder) |
| 18 : INHERITED(info, stream, bitsPerPixel, rowOrder) | 18 : INHERITED(info, stream, bitsPerPixel, rowOrder) |
| 19 , fMasks(masks) | 19 , fMasks(masks) |
| 20 , fMaskSwizzler(NULL) | 20 , fMaskSwizzler(nullptr) |
| 21 , fSrcBuffer(NULL) | 21 , fSrcBuffer(nullptr) |
| 22 {} | 22 {} |
| 23 | 23 |
| 24 /* | 24 /* |
| 25 * Initiates the bitmap decode | 25 * Initiates the bitmap decode |
| 26 */ | 26 */ |
| 27 SkCodec::Result SkBmpMaskCodec::onGetPixels(const SkImageInfo& dstInfo, | 27 SkCodec::Result SkBmpMaskCodec::onGetPixels(const SkImageInfo& dstInfo, |
| 28 void* dst, size_t dstRowBytes, | 28 void* dst, size_t dstRowBytes, |
| 29 const Options& opts, | 29 const Options& opts, |
| 30 SkPMColor* inputColorPtr, | 30 SkPMColor* inputColorPtr, |
| 31 int* inputColorCount) { | 31 int* inputColorCount) { |
| (...skipping 25 matching lines...) Expand all Loading... |
| 57 | 57 |
| 58 bool SkBmpMaskCodec::initializeSwizzler(const SkImageInfo& dstInfo) { | 58 bool SkBmpMaskCodec::initializeSwizzler(const SkImageInfo& dstInfo) { |
| 59 // Allocate space for a row buffer | 59 // Allocate space for a row buffer |
| 60 const size_t rowBytes = SkAlign4(compute_row_bytes(dstInfo.width(), this->bi
tsPerPixel())); | 60 const size_t rowBytes = SkAlign4(compute_row_bytes(dstInfo.width(), this->bi
tsPerPixel())); |
| 61 fSrcBuffer.reset(new uint8_t[rowBytes]); | 61 fSrcBuffer.reset(new uint8_t[rowBytes]); |
| 62 | 62 |
| 63 // Create the swizzler | 63 // Create the swizzler |
| 64 fMaskSwizzler.reset(SkMaskSwizzler::CreateMaskSwizzler( | 64 fMaskSwizzler.reset(SkMaskSwizzler::CreateMaskSwizzler( |
| 65 dstInfo, fMasks, this->bitsPerPixel())); | 65 dstInfo, fMasks, this->bitsPerPixel())); |
| 66 | 66 |
| 67 if (NULL == fMaskSwizzler.get()) { | 67 if (nullptr == fMaskSwizzler.get()) { |
| 68 return false; | 68 return false; |
| 69 } | 69 } |
| 70 | 70 |
| 71 return true; | 71 return true; |
| 72 } | 72 } |
| 73 | 73 |
| 74 /* | 74 /* |
| 75 * Performs the decoding | 75 * Performs the decoding |
| 76 */ | 76 */ |
| 77 SkCodec::Result SkBmpMaskCodec::decode(const SkImageInfo& dstInfo, | 77 SkCodec::Result SkBmpMaskCodec::decode(const SkImageInfo& dstInfo, |
| 78 void* dst, size_t dstRowBytes, | 78 void* dst, size_t dstRowBytes, |
| 79 const Options& opts) { | 79 const Options& opts) { |
| 80 // Set constant values | 80 // Set constant values |
| 81 const int width = dstInfo.width(); | 81 const int width = dstInfo.width(); |
| 82 const int height = dstInfo.height(); | 82 const int height = dstInfo.height(); |
| 83 const size_t rowBytes = SkAlign4(compute_row_bytes(width, this->bitsPerPixel
())); | 83 const size_t rowBytes = SkAlign4(compute_row_bytes(width, this->bitsPerPixel
())); |
| 84 | 84 |
| 85 // Iterate over rows of the image | 85 // Iterate over rows of the image |
| 86 uint8_t* srcRow = fSrcBuffer.get(); | 86 uint8_t* srcRow = fSrcBuffer.get(); |
| 87 for (int y = 0; y < height; y++) { | 87 for (int y = 0; y < height; y++) { |
| 88 // Read a row of the input | 88 // Read a row of the input |
| 89 if (this->stream()->read(srcRow, rowBytes) != rowBytes) { | 89 if (this->stream()->read(srcRow, rowBytes) != rowBytes) { |
| 90 SkCodecPrintf("Warning: incomplete input stream.\n"); | 90 SkCodecPrintf("Warning: incomplete input stream.\n"); |
| 91 // Fill the destination image on failure | 91 // Fill the destination image on failure |
| 92 SkPMColor fillColor = dstInfo.alphaType() == kOpaque_SkAlphaType ? | 92 SkPMColor fillColor = dstInfo.alphaType() == kOpaque_SkAlphaType ? |
| 93 SK_ColorBLACK : SK_ColorTRANSPARENT; | 93 SK_ColorBLACK : SK_ColorTRANSPARENT; |
| 94 if (kNo_ZeroInitialized == opts.fZeroInitialized || 0 != fillColor)
{ | 94 if (kNo_ZeroInitialized == opts.fZeroInitialized || 0 != fillColor)
{ |
| 95 void* dstStart = this->getDstStartRow(dst, dstRowBytes, y); | 95 void* dstStart = this->getDstStartRow(dst, dstRowBytes, y); |
| 96 SkSwizzler::Fill(dstStart, dstInfo, dstRowBytes, dstInfo.height(
) - y, fillColor, | 96 SkSwizzler::Fill(dstStart, dstInfo, dstRowBytes, dstInfo.height(
) - y, fillColor, |
| 97 NULL); | 97 nullptr); |
| 98 } | 98 } |
| 99 return kIncompleteInput; | 99 return kIncompleteInput; |
| 100 } | 100 } |
| 101 | 101 |
| 102 // Decode the row in destination format | 102 // Decode the row in destination format |
| 103 int row = SkBmpCodec::kBottomUp_RowOrder == this->rowOrder() ? height -
1 - y : y; | 103 int row = SkBmpCodec::kBottomUp_RowOrder == this->rowOrder() ? height -
1 - y : y; |
| 104 void* dstRow = SkTAddOffset<void>(dst, row * dstRowBytes); | 104 void* dstRow = SkTAddOffset<void>(dst, row * dstRowBytes); |
| 105 fMaskSwizzler->swizzle(dstRow, srcRow); | 105 fMaskSwizzler->swizzle(dstRow, srcRow); |
| 106 } | 106 } |
| 107 | 107 |
| 108 // Finished decoding the entire image | 108 // Finished decoding the entire image |
| 109 return kSuccess; | 109 return kSuccess; |
| 110 } | 110 } |
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