| OLD | NEW |
|---|
| (Empty) |
| 1 /* | |
| 2 * Copyright 2014 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 "gm.h" | |
| 9 | |
| 10 #include "Resources.h" | |
| 11 #include "SkCanvas.h" | |
| 12 #include "SkData.h" | |
| 13 #include "SkImage.h" | |
| 14 #include "SkImageGenerator.h" | |
| 15 #include "SkOSFile.h" | |
| 16 #include "SkTemplates.h" | |
| 17 | |
| 18 #ifndef SK_IGNORE_ETC1_SUPPORT | |
| 19 | |
| 20 #include "etc1.h" | |
| 21 | |
| 22 /** | |
| 23 * Remove the last row and column of ETC1 blocks, effectively | |
| 24 * making a texture that started as power of two into a texture | |
| 25 * that is no longer power of two... | |
| 26 */ | |
| 27 bool slice_etc1_data(void *data, int* width, int* height) { | |
| 28 | |
| 29 // First, parse the data and get to it... | |
| 30 etc1_byte *origData = reinterpret_cast<etc1_byte *>(data); | |
| 31 if (!etc1_pkm_is_valid(origData)) { | |
| 32 return false; | |
| 33 } | |
| 34 | |
| 35 int origW = etc1_pkm_get_width(origData); | |
| 36 int origH = etc1_pkm_get_height(origData); | |
| 37 | |
| 38 int blockWidth = (origW + 3) >> 2; | |
| 39 int blockHeight = (origH + 3) >> 2; | |
| 40 | |
| 41 // Make sure that we have blocks to trim off.. | |
| 42 if (blockWidth < 2 || blockHeight < 2) { | |
| 43 return false; | |
| 44 } | |
| 45 | |
| 46 int newWidth = (blockWidth - 1) << 2; | |
| 47 int newHeight = (blockHeight - 1) << 2; | |
| 48 | |
| 49 size_t newDataSz = etc1_get_encoded_data_size(newWidth, newHeight) + ETC_PKM
_HEADER_SIZE; | |
| 50 SkAutoTMalloc<etc1_byte> am(newDataSz); | |
| 51 | |
| 52 etc1_byte* newData = am.get(); | |
| 53 | |
| 54 etc1_pkm_format_header(newData, newWidth, newHeight); | |
| 55 newData += ETC_PKM_HEADER_SIZE; | |
| 56 origData += ETC_PKM_HEADER_SIZE; | |
| 57 | |
| 58 for (int j = 0; j < blockHeight - 1; ++j) { | |
| 59 memcpy(newData, origData, (blockWidth - 1)*ETC1_ENCODED_BLOCK_SIZE); | |
| 60 origData += blockWidth*ETC1_ENCODED_BLOCK_SIZE; | |
| 61 newData += (blockWidth - 1)*ETC1_ENCODED_BLOCK_SIZE; | |
| 62 } | |
| 63 | |
| 64 // Stick the data back whence it came | |
| 65 memcpy(data, am.get(), newDataSz); | |
| 66 *width = newWidth; | |
| 67 *height = newHeight; | |
| 68 | |
| 69 return true; | |
| 70 } | |
| 71 #endif // SK_IGNORE_ETC1_SUPPORT | |
| 72 | |
| 73 namespace skiagm { | |
| 74 | |
| 75 /** | |
| 76 * Test decoding an image from a PKM or KTX file and then | |
| 77 * from compressed ETC1 data. | |
| 78 */ | |
| 79 class ETC1BitmapGM : public GM { | |
| 80 public: | |
| 81 ETC1BitmapGM() { } | |
| 82 virtual ~ETC1BitmapGM() { } | |
| 83 | |
| 84 protected: | |
| 85 SkString onShortName() override { | |
| 86 SkString str = SkString("etc1bitmap_"); | |
| 87 str.append(this->fileExtension()); | |
| 88 return str; | |
| 89 } | |
| 90 | |
| 91 SkISize onISize() override { | |
| 92 return SkISize::Make(128, 128); | |
| 93 } | |
| 94 | |
| 95 virtual SkString fileExtension() const = 0; | |
| 96 | |
| 97 void onDraw(SkCanvas* canvas) override { | |
| 98 SkBitmap bm; | |
| 99 SkString filename = GetResourcePath("mandrill_128."); | |
| 100 filename.append(this->fileExtension()); | |
| 101 sk_sp<SkData> fileData(SkData::MakeFromFileName(filename.c_str())); | |
| 102 if (nullptr == fileData) { | |
| 103 SkDebugf("Could not open the file. Did you forget to set the resourc
ePath?\n"); | |
| 104 return; | |
| 105 } | |
| 106 | |
| 107 sk_sp<SkImage> image(SkImage::MakeFromEncoded(std::move(fileData))); | |
| 108 if (nullptr == image) { | |
| 109 SkDebugf("Could not decode the ETC file. ETC may not be included in
this platform.\n"); | |
| 110 return; | |
| 111 } | |
| 112 canvas->drawImage(image, 0, 0); | |
| 113 } | |
| 114 | |
| 115 private: | |
| 116 typedef GM INHERITED; | |
| 117 }; | |
| 118 | |
| 119 // This class specializes ETC1BitmapGM to load the mandrill_128.pkm file. | |
| 120 class ETC1Bitmap_PKM_GM : public ETC1BitmapGM { | |
| 121 public: | |
| 122 ETC1Bitmap_PKM_GM() : ETC1BitmapGM() { } | |
| 123 virtual ~ETC1Bitmap_PKM_GM() { } | |
| 124 | |
| 125 protected: | |
| 126 | |
| 127 SkString fileExtension() const override { return SkString("pkm"); } | |
| 128 | |
| 129 private: | |
| 130 typedef ETC1BitmapGM INHERITED; | |
| 131 }; | |
| 132 | |
| 133 // This class specializes ETC1BitmapGM to load the mandrill_128.ktx file. | |
| 134 class ETC1Bitmap_KTX_GM : public ETC1BitmapGM { | |
| 135 public: | |
| 136 ETC1Bitmap_KTX_GM() : ETC1BitmapGM() { } | |
| 137 virtual ~ETC1Bitmap_KTX_GM() { } | |
| 138 | |
| 139 protected: | |
| 140 | |
| 141 SkString fileExtension() const override { return SkString("ktx"); } | |
| 142 | |
| 143 private: | |
| 144 typedef ETC1BitmapGM INHERITED; | |
| 145 }; | |
| 146 | |
| 147 // This class specializes ETC1BitmapGM to load the mandrill_128.r11.ktx file. | |
| 148 class ETC1Bitmap_R11_KTX_GM : public ETC1BitmapGM { | |
| 149 public: | |
| 150 ETC1Bitmap_R11_KTX_GM() : ETC1BitmapGM() { } | |
| 151 virtual ~ETC1Bitmap_R11_KTX_GM() { } | |
| 152 | |
| 153 protected: | |
| 154 | |
| 155 SkString fileExtension() const override { return SkString("r11.ktx"); } | |
| 156 | |
| 157 private: | |
| 158 typedef ETC1BitmapGM INHERITED; | |
| 159 }; | |
| 160 | |
| 161 #ifndef SK_IGNORE_ETC1_SUPPORT | |
| 162 /** | |
| 163 * Test decoding an image from a PKM file and then | |
| 164 * from non-power-of-two compressed ETC1 data. First slice | |
| 165 * off a row and column of blocks in order to make it non-power | |
| 166 * of two. | |
| 167 */ | |
| 168 class ETC1Bitmap_NPOT_GM : public GM { | |
| 169 public: | |
| 170 ETC1Bitmap_NPOT_GM() { } | |
| 171 virtual ~ETC1Bitmap_NPOT_GM() { } | |
| 172 | |
| 173 protected: | |
| 174 SkString onShortName() override { | |
| 175 return SkString("etc1bitmap_npot"); | |
| 176 } | |
| 177 | |
| 178 SkISize onISize() override { | |
| 179 return SkISize::Make(124, 124); | |
| 180 } | |
| 181 | |
| 182 void onDraw(SkCanvas* canvas) override { | |
| 183 SkBitmap bm; | |
| 184 SkString pkmFilename = GetResourcePath("mandrill_128.pkm"); | |
| 185 SkAutoDataUnref fileData(SkData::NewFromFileName(pkmFilename.c_str())); | |
| 186 if (nullptr == fileData) { | |
| 187 SkDebugf("Could not open the file. Did you forget to set the resourc
ePath?\n"); | |
| 188 return; | |
| 189 } | |
| 190 | |
| 191 SkAutoMalloc am(fileData->size()); | |
| 192 memcpy(am.get(), fileData->data(), fileData->size()); | |
| 193 | |
| 194 int width, height; | |
| 195 if (!slice_etc1_data(am.get(), &width, &height)) { | |
| 196 SkDebugf("ETC1 Data is poorly formatted.\n"); | |
| 197 return; | |
| 198 } | |
| 199 | |
| 200 SkASSERT(124 == width); | |
| 201 SkASSERT(124 == height); | |
| 202 | |
| 203 size_t dataSz = etc1_get_encoded_data_size(width, height) + ETC_PKM_HEAD
ER_SIZE; | |
| 204 sk_sp<SkData> nonPOTData(SkData::MakeWithCopy(am.get(), dataSz)); | |
| 205 canvas->drawImage(SkImage::MakeFromEncoded(std::move(nonPOTData)).get(),
0, 0); | |
| 206 } | |
| 207 | |
| 208 private: | |
| 209 typedef GM INHERITED; | |
| 210 }; | |
| 211 #endif // SK_IGNORE_ETC1_SUPPORT | |
| 212 | |
| 213 } // namespace skiagm | |
| 214 | |
| 215 ////////////////////////////////////////////////////////////////////////////// | |
| 216 | |
| 217 DEF_GM(return new skiagm::ETC1Bitmap_PKM_GM;) | |
| 218 DEF_GM(return new skiagm::ETC1Bitmap_KTX_GM;) | |
| 219 DEF_GM(return new skiagm::ETC1Bitmap_R11_KTX_GM;) | |
| 220 | |
| 221 #ifndef SK_IGNORE_ETC1_SUPPORT | |
| 222 DEF_GM(return new skiagm::ETC1Bitmap_NPOT_GM;) | |
| 223 #endif // SK_IGNORE_ETC1_SUPPORT | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 1820503002:
Delete SkImageDecoder (Closed)
Base URL: https://skia.googlesource.com/skia.git@fix-animator