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| 1 /* | 1 /* |
| 2 * Copyright 2014 Google Inc. | 2 * Copyright 2014 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 "SkBitmap.h" | 8 #include "SkBitmap.h" |
| 9 #include "SkData.h" | 9 #include "SkData.h" |
| 10 #include "SkEndian.h" | 10 #include "SkEndian.h" |
| (...skipping 45 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 56 SkAutoPixmapStorage pixmap; | 56 SkAutoPixmapStorage pixmap; |
| 57 pixmap.alloc(SkImageInfo::MakeA8(kWidth, kHeight)); | 57 pixmap.alloc(SkImageInfo::MakeA8(kWidth, kHeight)); |
| 58 // leaving the pixels uninitialized, as they don't affect the test... | 58 // leaving the pixels uninitialized, as they don't affect the test... |
| 59 | 59 |
| 60 for (int i = 0; i < SkTextureCompressor::kFormatCnt; ++i) { | 60 for (int i = 0; i < SkTextureCompressor::kFormatCnt; ++i) { |
| 61 const SkTextureCompressor::Format fmt = static_cast<SkTextureCompressor:
:Format>(i); | 61 const SkTextureCompressor::Format fmt = static_cast<SkTextureCompressor:
:Format>(i); |
| 62 if (!compresses_a8(fmt)) { | 62 if (!compresses_a8(fmt)) { |
| 63 continue; | 63 continue; |
| 64 } | 64 } |
| 65 SkAutoDataUnref data(SkTextureCompressor::CompressBitmapToFormat(pixmap,
fmt)); | 65 SkAutoDataUnref data(SkTextureCompressor::CompressBitmapToFormat(pixmap,
fmt)); |
| 66 REPORTER_ASSERT(reporter, NULL == data); | 66 REPORTER_ASSERT(reporter, nullptr == data); |
| 67 } | 67 } |
| 68 } | 68 } |
| 69 | 69 |
| 70 /** | 70 /** |
| 71 * Make sure that we properly fail when we don't have the correct bitmap type. | 71 * Make sure that we properly fail when we don't have the correct bitmap type. |
| 72 * compressed textures can (currently) only be created from A8 bitmaps. | 72 * compressed textures can (currently) only be created from A8 bitmaps. |
| 73 */ | 73 */ |
| 74 DEF_TEST(CompressAlphaFailColorType, reporter) { | 74 DEF_TEST(CompressAlphaFailColorType, reporter) { |
| 75 static const int kWidth = 12; | 75 static const int kWidth = 12; |
| 76 static const int kHeight = 12; | 76 static const int kHeight = 12; |
| 77 | 77 |
| 78 // ASTC is at most 12x12, and any dimension divisible by 12 is also divisibl
e | 78 // ASTC is at most 12x12, and any dimension divisible by 12 is also divisibl
e |
| 79 // by 4, which is the dimensions of R11_EAC and LATC. In the future, we migh
t | 79 // by 4, which is the dimensions of R11_EAC and LATC. In the future, we migh
t |
| 80 // support additional variants of ASTC, such as 5x6 and 8x8, in which case t
his would | 80 // support additional variants of ASTC, such as 5x6 and 8x8, in which case t
his would |
| 81 // need to be updated. | 81 // need to be updated. |
| 82 REPORTER_ASSERT(reporter, kWidth % 12 == 0); | 82 REPORTER_ASSERT(reporter, kWidth % 12 == 0); |
| 83 REPORTER_ASSERT(reporter, kHeight % 12 == 0); | 83 REPORTER_ASSERT(reporter, kHeight % 12 == 0); |
| 84 | 84 |
| 85 SkAutoPixmapStorage pixmap; | 85 SkAutoPixmapStorage pixmap; |
| 86 pixmap.alloc(SkImageInfo::MakeN32Premul(kWidth, kHeight)); | 86 pixmap.alloc(SkImageInfo::MakeN32Premul(kWidth, kHeight)); |
| 87 // leaving the pixels uninitialized, as they don't affect the test... | 87 // leaving the pixels uninitialized, as they don't affect the test... |
| 88 | 88 |
| 89 for (int i = 0; i < SkTextureCompressor::kFormatCnt; ++i) { | 89 for (int i = 0; i < SkTextureCompressor::kFormatCnt; ++i) { |
| 90 const SkTextureCompressor::Format fmt = static_cast<SkTextureCompressor:
:Format>(i); | 90 const SkTextureCompressor::Format fmt = static_cast<SkTextureCompressor:
:Format>(i); |
| 91 if (!compresses_a8(fmt)) { | 91 if (!compresses_a8(fmt)) { |
| 92 continue; | 92 continue; |
| 93 } | 93 } |
| 94 SkAutoDataUnref data(SkTextureCompressor::CompressBitmapToFormat(pixmap,
fmt)); | 94 SkAutoDataUnref data(SkTextureCompressor::CompressBitmapToFormat(pixmap,
fmt)); |
| 95 REPORTER_ASSERT(reporter, NULL == data); | 95 REPORTER_ASSERT(reporter, nullptr == data); |
| 96 } | 96 } |
| 97 } | 97 } |
| 98 | 98 |
| 99 /** | 99 /** |
| 100 * Make sure that if you compress a texture with alternating black/white pixels,
and | 100 * Make sure that if you compress a texture with alternating black/white pixels,
and |
| 101 * then decompress it, you get what you started with. | 101 * then decompress it, you get what you started with. |
| 102 */ | 102 */ |
| 103 DEF_TEST(CompressCheckerboard, reporter) { | 103 DEF_TEST(CompressCheckerboard, reporter) { |
| 104 static const int kWidth = 48; // We need the number to be divisible by both | 104 static const int kWidth = 48; // We need the number to be divisible by both |
| 105 static const int kHeight = 48; // 12 (ASTC) and 16 (ARM NEON R11 EAC). | 105 static const int kHeight = 48; // 12 (ASTC) and 16 (ARM NEON R11 EAC). |
| 106 | 106 |
| 107 // ASTC is at most 12x12, and any dimension divisible by 12 is also divisibl
e | 107 // ASTC is at most 12x12, and any dimension divisible by 12 is also divisibl
e |
| 108 // by 4, which is the dimensions of R11_EAC and LATC. In the future, we migh
t | 108 // by 4, which is the dimensions of R11_EAC and LATC. In the future, we migh
t |
| 109 // support additional variants of ASTC, such as 5x6 and 8x8, in which case t
his would | 109 // support additional variants of ASTC, such as 5x6 and 8x8, in which case t
his would |
| 110 // need to be updated. Additionally, ARM NEON and SSE code paths support up
to | 110 // need to be updated. Additionally, ARM NEON and SSE code paths support up
to |
| 111 // four blocks of R11 EAC at once, so they operate on 16-wide blocks. Hence,
the | 111 // four blocks of R11 EAC at once, so they operate on 16-wide blocks. Hence,
the |
| 112 // valid width and height is going to be the LCM of 12 and 16 which is 4*4*3
= 48 | 112 // valid width and height is going to be the LCM of 12 and 16 which is 4*4*3
= 48 |
| 113 REPORTER_ASSERT(reporter, kWidth % 48 == 0); | 113 REPORTER_ASSERT(reporter, kWidth % 48 == 0); |
| 114 REPORTER_ASSERT(reporter, kHeight % 48 == 0); | 114 REPORTER_ASSERT(reporter, kHeight % 48 == 0); |
| 115 | 115 |
| 116 SkAutoPixmapStorage pixmap; | 116 SkAutoPixmapStorage pixmap; |
| 117 pixmap.alloc(SkImageInfo::MakeA8(kWidth, kHeight)); | 117 pixmap.alloc(SkImageInfo::MakeA8(kWidth, kHeight)); |
| 118 | 118 |
| 119 // Populate the pixels | 119 // Populate the pixels |
| 120 { | 120 { |
| 121 uint8_t* pixels = reinterpret_cast<uint8_t*>(pixmap.writable_addr()); | 121 uint8_t* pixels = reinterpret_cast<uint8_t*>(pixmap.writable_addr()); |
| 122 REPORTER_ASSERT(reporter, pixels); | 122 REPORTER_ASSERT(reporter, pixels); |
| 123 if (NULL == pixels) { | 123 if (nullptr == pixels) { |
| 124 return; | 124 return; |
| 125 } | 125 } |
| 126 | 126 |
| 127 for (int y = 0; y < kHeight; ++y) { | 127 for (int y = 0; y < kHeight; ++y) { |
| 128 for (int x = 0; x < kWidth; ++x) { | 128 for (int x = 0; x < kWidth; ++x) { |
| 129 if ((x ^ y) & 1) { | 129 if ((x ^ y) & 1) { |
| 130 pixels[x] = 0xFF; | 130 pixels[x] = 0xFF; |
| 131 } else { | 131 } else { |
| 132 pixels[x] = 0; | 132 pixels[x] = 0; |
| 133 } | 133 } |
| 134 } | 134 } |
| 135 pixels += pixmap.rowBytes(); | 135 pixels += pixmap.rowBytes(); |
| 136 } | 136 } |
| 137 } | 137 } |
| 138 | 138 |
| 139 SkAutoMalloc decompMemory(kWidth*kHeight); | 139 SkAutoMalloc decompMemory(kWidth*kHeight); |
| 140 uint8_t* decompBuffer = reinterpret_cast<uint8_t*>(decompMemory.get()); | 140 uint8_t* decompBuffer = reinterpret_cast<uint8_t*>(decompMemory.get()); |
| 141 REPORTER_ASSERT(reporter, decompBuffer); | 141 REPORTER_ASSERT(reporter, decompBuffer); |
| 142 if (NULL == decompBuffer) { | 142 if (nullptr == decompBuffer) { |
| 143 return; | 143 return; |
| 144 } | 144 } |
| 145 | 145 |
| 146 for (int i = 0; i < SkTextureCompressor::kFormatCnt; ++i) { | 146 for (int i = 0; i < SkTextureCompressor::kFormatCnt; ++i) { |
| 147 const SkTextureCompressor::Format fmt = static_cast<SkTextureCompressor:
:Format>(i); | 147 const SkTextureCompressor::Format fmt = static_cast<SkTextureCompressor:
:Format>(i); |
| 148 | 148 |
| 149 // Ignore formats for RGBA data, since the decompressed buffer | 149 // Ignore formats for RGBA data, since the decompressed buffer |
| 150 // won't match the size and contents of the original. | 150 // won't match the size and contents of the original. |
| 151 if (!decompresses_a8(fmt) || !compresses_a8(fmt)) { | 151 if (!decompresses_a8(fmt) || !compresses_a8(fmt)) { |
| 152 continue; | 152 continue; |
| 153 } | 153 } |
| 154 | 154 |
| 155 SkAutoDataUnref data(SkTextureCompressor::CompressBitmapToFormat(pixmap,
fmt)); | 155 SkAutoDataUnref data(SkTextureCompressor::CompressBitmapToFormat(pixmap,
fmt)); |
| 156 REPORTER_ASSERT(reporter, data); | 156 REPORTER_ASSERT(reporter, data); |
| 157 if (NULL == data) { | 157 if (nullptr == data) { |
| 158 continue; | 158 continue; |
| 159 } | 159 } |
| 160 | 160 |
| 161 bool decompResult = | 161 bool decompResult = |
| 162 SkTextureCompressor::DecompressBufferFromFormat( | 162 SkTextureCompressor::DecompressBufferFromFormat( |
| 163 decompBuffer, kWidth, | 163 decompBuffer, kWidth, |
| 164 data->bytes(), | 164 data->bytes(), |
| 165 kWidth, kHeight, fmt); | 165 kWidth, kHeight, fmt); |
| 166 REPORTER_ASSERT(reporter, decompResult); | 166 REPORTER_ASSERT(reporter, decompResult); |
| 167 | 167 |
| 168 const uint8_t* pixels = reinterpret_cast<const uint8_t*>(pixmap.addr()); | 168 const uint8_t* pixels = reinterpret_cast<const uint8_t*>(pixmap.addr()); |
| 169 REPORTER_ASSERT(reporter, pixels); | 169 REPORTER_ASSERT(reporter, pixels); |
| 170 if (NULL == pixels) { | 170 if (nullptr == pixels) { |
| 171 continue; | 171 continue; |
| 172 } | 172 } |
| 173 | 173 |
| 174 for (int y = 0; y < kHeight; ++y) { | 174 for (int y = 0; y < kHeight; ++y) { |
| 175 for (int x = 0; x < kWidth; ++x) { | 175 for (int x = 0; x < kWidth; ++x) { |
| 176 bool ok = pixels[y*pixmap.rowBytes() + x] == decompBuffer[y*kWid
th + x]; | 176 bool ok = pixels[y*pixmap.rowBytes() + x] == decompBuffer[y*kWid
th + x]; |
| 177 REPORTER_ASSERT(reporter, ok); | 177 REPORTER_ASSERT(reporter, ok); |
| 178 } | 178 } |
| 179 } | 179 } |
| 180 } | 180 } |
| (...skipping 25 matching lines...) Expand all Loading... |
| 206 | 206 |
| 207 for (int lum = 0; lum < 256; ++lum) { | 207 for (int lum = 0; lum < 256; ++lum) { |
| 208 uint8_t* pixels = reinterpret_cast<uint8_t*>(pixmap.writable_addr()); | 208 uint8_t* pixels = reinterpret_cast<uint8_t*>(pixmap.writable_addr()); |
| 209 for (int i = 0; i < kWidth*kHeight; ++i) { | 209 for (int i = 0; i < kWidth*kHeight; ++i) { |
| 210 pixels[i] = lum; | 210 pixels[i] = lum; |
| 211 } | 211 } |
| 212 | 212 |
| 213 SkAutoDataUnref latcData( | 213 SkAutoDataUnref latcData( |
| 214 SkTextureCompressor::CompressBitmapToFormat(pixmap, kLATCFormat)); | 214 SkTextureCompressor::CompressBitmapToFormat(pixmap, kLATCFormat)); |
| 215 REPORTER_ASSERT(reporter, latcData); | 215 REPORTER_ASSERT(reporter, latcData); |
| 216 if (NULL == latcData) { | 216 if (nullptr == latcData) { |
| 217 continue; | 217 continue; |
| 218 } | 218 } |
| 219 | 219 |
| 220 REPORTER_ASSERT(reporter, kSizeToBe == latcData->size()); | 220 REPORTER_ASSERT(reporter, kSizeToBe == latcData->size()); |
| 221 | 221 |
| 222 // Make sure that it all matches a given block encoding. Since we have | 222 // Make sure that it all matches a given block encoding. Since we have |
| 223 // COMPRESS_LATC_FAST defined in SkTextureCompressor_LATC.cpp, we are us
ing | 223 // COMPRESS_LATC_FAST defined in SkTextureCompressor_LATC.cpp, we are us
ing |
| 224 // an approximation scheme that optimizes for speed against coverage map
s. | 224 // an approximation scheme that optimizes for speed against coverage map
s. |
| 225 // That means that each palette in the encoded block is exactly the same
, | 225 // That means that each palette in the encoded block is exactly the same
, |
| 226 // and that the three bits saved per pixel are computed from the top thr
ee | 226 // and that the three bits saved per pixel are computed from the top thr
ee |
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| 266 (kIndex << 28) | (kIndex << 31) | (kIndex << 34) | (kIndex << 37
) | | 266 (kIndex << 28) | (kIndex << 31) | (kIndex << 34) | (kIndex << 37
) | |
| 267 (kIndex << 40) | (kIndex << 43) | (kIndex << 46) | (kIndex << 49
) | | 267 (kIndex << 40) | (kIndex << 43) | (kIndex << 46) | (kIndex << 49
) | |
| 268 (kIndex << 52) | (kIndex << 55) | (kIndex << 58) | (kIndex << 61
)); | 268 (kIndex << 52) | (kIndex << 55) | (kIndex << 58) | (kIndex << 61
)); |
| 269 | 269 |
| 270 const uint64_t* blockPtr = reinterpret_cast<const uint64_t*>(latcData->d
ata()); | 270 const uint64_t* blockPtr = reinterpret_cast<const uint64_t*>(latcData->d
ata()); |
| 271 for (size_t i = 0; i < (kSizeToBe/8); ++i) { | 271 for (size_t i = 0; i < (kSizeToBe/8); ++i) { |
| 272 REPORTER_ASSERT(reporter, blockPtr[i] == kConstColorEncoding); | 272 REPORTER_ASSERT(reporter, blockPtr[i] == kConstColorEncoding); |
| 273 } | 273 } |
| 274 } | 274 } |
| 275 } | 275 } |
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