jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2015 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 | */ |
djsollen@google.com | c73dd5c | 2012-08-07 15:54:32 +0000 | [diff] [blame] | 7 | |
reed@google.com | 02f65f2 | 2012-08-06 21:20:05 +0000 | [diff] [blame] | 8 | #include "SkBitmap.h" |
mike@reedtribe.org | a69b48c | 2011-12-28 20:31:00 +0000 | [diff] [blame] | 9 | #include "SkTableColorFilter.h" |
djsollen@google.com | c73dd5c | 2012-08-07 15:54:32 +0000 | [diff] [blame] | 10 | #include "SkColorPriv.h" |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 11 | #include "SkReadBuffer.h" |
| 12 | #include "SkWriteBuffer.h" |
mike@reedtribe.org | a69b48c | 2011-12-28 20:31:00 +0000 | [diff] [blame] | 13 | #include "SkUnPreMultiply.h" |
robertphillips@google.com | 1202c2a | 2013-05-23 14:00:17 +0000 | [diff] [blame] | 14 | #include "SkString.h" |
mike@reedtribe.org | a69b48c | 2011-12-28 20:31:00 +0000 | [diff] [blame] | 15 | |
| 16 | class SkTable_ColorFilter : public SkColorFilter { |
| 17 | public: |
| 18 | SkTable_ColorFilter(const uint8_t tableA[], const uint8_t tableR[], |
| 19 | const uint8_t tableG[], const uint8_t tableB[]) { |
mike@reedtribe.org | f23f5f7 | 2012-01-07 03:48:45 +0000 | [diff] [blame] | 20 | fBitmap = NULL; |
mike@reedtribe.org | a69b48c | 2011-12-28 20:31:00 +0000 | [diff] [blame] | 21 | fFlags = 0; |
mike@reedtribe.org | f23f5f7 | 2012-01-07 03:48:45 +0000 | [diff] [blame] | 22 | |
mike@reedtribe.org | a69b48c | 2011-12-28 20:31:00 +0000 | [diff] [blame] | 23 | uint8_t* dst = fStorage; |
| 24 | if (tableA) { |
| 25 | memcpy(dst, tableA, 256); |
| 26 | dst += 256; |
| 27 | fFlags |= kA_Flag; |
| 28 | } |
| 29 | if (tableR) { |
| 30 | memcpy(dst, tableR, 256); |
| 31 | dst += 256; |
| 32 | fFlags |= kR_Flag; |
| 33 | } |
| 34 | if (tableG) { |
| 35 | memcpy(dst, tableG, 256); |
| 36 | dst += 256; |
| 37 | fFlags |= kG_Flag; |
| 38 | } |
| 39 | if (tableB) { |
| 40 | memcpy(dst, tableB, 256); |
| 41 | fFlags |= kB_Flag; |
| 42 | } |
| 43 | } |
| 44 | |
tomhudson@google.com | 1bb4be2 | 2012-07-24 17:24:21 +0000 | [diff] [blame] | 45 | virtual ~SkTable_ColorFilter() { |
| 46 | SkDELETE(fBitmap); |
| 47 | } |
| 48 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 49 | bool asComponentTable(SkBitmap* table) const override; |
| 50 | SkColorFilter* newComposed(const SkColorFilter* inner) const override; |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 51 | |
| 52 | #if SK_SUPPORT_GPU |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 53 | bool asFragmentProcessors(GrContext*, SkTDArray<GrFragmentProcessor*>*) const override; |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 54 | #endif |
mike@reedtribe.org | f23f5f7 | 2012-01-07 03:48:45 +0000 | [diff] [blame] | 55 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 56 | void filterSpan(const SkPMColor src[], int count, SkPMColor dst[]) const override; |
mike@reedtribe.org | a69b48c | 2011-12-28 20:31:00 +0000 | [diff] [blame] | 57 | |
commit-bot@chromium.org | 0f10f7b | 2014-03-13 18:02:17 +0000 | [diff] [blame] | 58 | SK_TO_STRING_OVERRIDE() |
robertphillips@google.com | 1202c2a | 2013-05-23 14:00:17 +0000 | [diff] [blame] | 59 | |
djsollen@google.com | ba28d03 | 2012-03-26 17:57:35 +0000 | [diff] [blame] | 60 | SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkTable_ColorFilter) |
mike@reedtribe.org | f23f5f7 | 2012-01-07 03:48:45 +0000 | [diff] [blame] | 61 | |
bsalomon@google.com | 371e105 | 2013-01-11 21:08:55 +0000 | [diff] [blame] | 62 | enum { |
| 63 | kA_Flag = 1 << 0, |
| 64 | kR_Flag = 1 << 1, |
| 65 | kG_Flag = 1 << 2, |
| 66 | kB_Flag = 1 << 3, |
| 67 | }; |
| 68 | |
mike@reedtribe.org | a69b48c | 2011-12-28 20:31:00 +0000 | [diff] [blame] | 69 | protected: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 70 | void flatten(SkWriteBuffer&) const override; |
mike@reedtribe.org | a69b48c | 2011-12-28 20:31:00 +0000 | [diff] [blame] | 71 | |
| 72 | private: |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 73 | mutable const SkBitmap* fBitmap; // lazily allocated |
mike@reedtribe.org | f23f5f7 | 2012-01-07 03:48:45 +0000 | [diff] [blame] | 74 | |
mike@reedtribe.org | a69b48c | 2011-12-28 20:31:00 +0000 | [diff] [blame] | 75 | uint8_t fStorage[256 * 4]; |
| 76 | unsigned fFlags; |
| 77 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 78 | friend class SkTableColorFilter; |
| 79 | |
mike@reedtribe.org | a69b48c | 2011-12-28 20:31:00 +0000 | [diff] [blame] | 80 | typedef SkColorFilter INHERITED; |
| 81 | }; |
| 82 | |
| 83 | static const uint8_t gIdentityTable[] = { |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 84 | 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, |
| 85 | 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, |
| 86 | 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, |
| 87 | 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, |
| 88 | 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, |
| 89 | 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F, |
| 90 | 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, |
| 91 | 0x38, 0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F, |
| 92 | 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, |
| 93 | 0x48, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, |
| 94 | 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, |
| 95 | 0x58, 0x59, 0x5A, 0x5B, 0x5C, 0x5D, 0x5E, 0x5F, |
| 96 | 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, |
| 97 | 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, |
| 98 | 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, |
| 99 | 0x78, 0x79, 0x7A, 0x7B, 0x7C, 0x7D, 0x7E, 0x7F, |
| 100 | 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, |
| 101 | 0x88, 0x89, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F, |
| 102 | 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, |
| 103 | 0x98, 0x99, 0x9A, 0x9B, 0x9C, 0x9D, 0x9E, 0x9F, |
| 104 | 0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, |
| 105 | 0xA8, 0xA9, 0xAA, 0xAB, 0xAC, 0xAD, 0xAE, 0xAF, |
| 106 | 0xB0, 0xB1, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, |
| 107 | 0xB8, 0xB9, 0xBA, 0xBB, 0xBC, 0xBD, 0xBE, 0xBF, |
| 108 | 0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, |
| 109 | 0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF, |
| 110 | 0xD0, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, |
| 111 | 0xD8, 0xD9, 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0xDF, |
| 112 | 0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, |
| 113 | 0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF, |
| 114 | 0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, |
mike@reedtribe.org | a69b48c | 2011-12-28 20:31:00 +0000 | [diff] [blame] | 115 | 0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0xFF |
| 116 | }; |
| 117 | |
reed | 8a8d841 | 2015-03-02 13:46:03 -0800 | [diff] [blame] | 118 | void SkTable_ColorFilter::filterSpan(const SkPMColor src[], int count, SkPMColor dst[]) const { |
mike@reedtribe.org | a69b48c | 2011-12-28 20:31:00 +0000 | [diff] [blame] | 119 | const uint8_t* table = fStorage; |
| 120 | const uint8_t* tableA = gIdentityTable; |
| 121 | const uint8_t* tableR = gIdentityTable; |
| 122 | const uint8_t* tableG = gIdentityTable; |
| 123 | const uint8_t* tableB = gIdentityTable; |
| 124 | if (fFlags & kA_Flag) { |
| 125 | tableA = table; table += 256; |
| 126 | } |
| 127 | if (fFlags & kR_Flag) { |
| 128 | tableR = table; table += 256; |
| 129 | } |
| 130 | if (fFlags & kG_Flag) { |
| 131 | tableG = table; table += 256; |
| 132 | } |
| 133 | if (fFlags & kB_Flag) { |
| 134 | tableB = table; |
| 135 | } |
| 136 | |
| 137 | const SkUnPreMultiply::Scale* scaleTable = SkUnPreMultiply::GetScaleTable(); |
| 138 | for (int i = 0; i < count; ++i) { |
| 139 | SkPMColor c = src[i]; |
| 140 | unsigned a, r, g, b; |
| 141 | if (0 == c) { |
| 142 | a = r = g = b = 0; |
| 143 | } else { |
| 144 | a = SkGetPackedA32(c); |
| 145 | r = SkGetPackedR32(c); |
| 146 | g = SkGetPackedG32(c); |
| 147 | b = SkGetPackedB32(c); |
| 148 | |
| 149 | if (a < 255) { |
| 150 | SkUnPreMultiply::Scale scale = scaleTable[a]; |
| 151 | r = SkUnPreMultiply::ApplyScale(scale, r); |
| 152 | g = SkUnPreMultiply::ApplyScale(scale, g); |
| 153 | b = SkUnPreMultiply::ApplyScale(scale, b); |
| 154 | } |
| 155 | } |
| 156 | dst[i] = SkPremultiplyARGBInline(tableA[a], tableR[r], |
| 157 | tableG[g], tableB[b]); |
| 158 | } |
| 159 | } |
| 160 | |
commit-bot@chromium.org | 0f10f7b | 2014-03-13 18:02:17 +0000 | [diff] [blame] | 161 | #ifndef SK_IGNORE_TO_STRING |
robertphillips@google.com | 1202c2a | 2013-05-23 14:00:17 +0000 | [diff] [blame] | 162 | void SkTable_ColorFilter::toString(SkString* str) const { |
robertphillips | f3f5bad | 2014-12-19 13:49:15 -0800 | [diff] [blame] | 163 | const uint8_t* table = fStorage; |
| 164 | const uint8_t* tableA = gIdentityTable; |
| 165 | const uint8_t* tableR = gIdentityTable; |
| 166 | const uint8_t* tableG = gIdentityTable; |
| 167 | const uint8_t* tableB = gIdentityTable; |
| 168 | if (fFlags & kA_Flag) { |
| 169 | tableA = table; table += 256; |
| 170 | } |
| 171 | if (fFlags & kR_Flag) { |
| 172 | tableR = table; table += 256; |
| 173 | } |
| 174 | if (fFlags & kG_Flag) { |
| 175 | tableG = table; table += 256; |
| 176 | } |
| 177 | if (fFlags & kB_Flag) { |
| 178 | tableB = table; |
| 179 | } |
| 180 | |
| 181 | str->append("SkTable_ColorFilter ("); |
| 182 | |
| 183 | for (int i = 0; i < 256; ++i) { |
| 184 | str->appendf("%d: %d,%d,%d,%d\n", |
| 185 | i, tableR[i], tableG[i], tableB[i], tableA[i]); |
| 186 | } |
| 187 | |
| 188 | str->append(")"); |
robertphillips@google.com | 1202c2a | 2013-05-23 14:00:17 +0000 | [diff] [blame] | 189 | } |
| 190 | #endif |
| 191 | |
mike@reedtribe.org | a69b48c | 2011-12-28 20:31:00 +0000 | [diff] [blame] | 192 | static const uint8_t gCountNibBits[] = { |
| 193 | 0, 1, 1, 2, |
| 194 | 1, 2, 2, 3, |
| 195 | 1, 2, 2, 3, |
| 196 | 2, 3, 3, 4 |
| 197 | }; |
| 198 | |
| 199 | #include "SkPackBits.h" |
| 200 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 201 | void SkTable_ColorFilter::flatten(SkWriteBuffer& buffer) const { |
mike@reedtribe.org | a69b48c | 2011-12-28 20:31:00 +0000 | [diff] [blame] | 202 | uint8_t storage[5*256]; |
| 203 | int count = gCountNibBits[fFlags & 0xF]; |
jschuh | 699b852 | 2015-06-04 15:10:37 -0700 | [diff] [blame^] | 204 | size_t size = SkPackBits::Pack8(fStorage, count * 256, storage, |
| 205 | sizeof(storage)); |
mike@reedtribe.org | a69b48c | 2011-12-28 20:31:00 +0000 | [diff] [blame] | 206 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 207 | buffer.write32(fFlags); |
djsollen@google.com | c73dd5c | 2012-08-07 15:54:32 +0000 | [diff] [blame] | 208 | buffer.writeByteArray(storage, size); |
mike@reedtribe.org | a69b48c | 2011-12-28 20:31:00 +0000 | [diff] [blame] | 209 | } |
| 210 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 211 | SkFlattenable* SkTable_ColorFilter::CreateProc(SkReadBuffer& buffer) { |
| 212 | const int flags = buffer.read32(); |
| 213 | const size_t count = gCountNibBits[flags & 0xF]; |
| 214 | SkASSERT(count <= 4); |
| 215 | |
| 216 | uint8_t packedStorage[5*256]; |
| 217 | size_t packedSize = buffer.getArrayCount(); |
| 218 | if (!buffer.validate(packedSize <= sizeof(packedStorage))) { |
| 219 | return NULL; |
| 220 | } |
| 221 | if (!buffer.readByteArray(packedStorage, packedSize)) { |
| 222 | return NULL; |
| 223 | } |
| 224 | |
| 225 | uint8_t unpackedStorage[4*256]; |
jschuh | 699b852 | 2015-06-04 15:10:37 -0700 | [diff] [blame^] | 226 | size_t unpackedSize = SkPackBits::Unpack8(packedStorage, packedSize, |
| 227 | unpackedStorage, sizeof(unpackedStorage)); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 228 | // now check that we got the size we expected |
senorblanco | 91c395a | 2014-09-25 15:51:35 -0700 | [diff] [blame] | 229 | if (!buffer.validate(unpackedSize == count*256)) { |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 230 | return NULL; |
| 231 | } |
| 232 | |
| 233 | const uint8_t* a = NULL; |
| 234 | const uint8_t* r = NULL; |
| 235 | const uint8_t* g = NULL; |
| 236 | const uint8_t* b = NULL; |
| 237 | const uint8_t* ptr = unpackedStorage; |
| 238 | |
| 239 | if (flags & kA_Flag) { |
| 240 | a = ptr; |
| 241 | ptr += 256; |
| 242 | } |
| 243 | if (flags & kR_Flag) { |
| 244 | r = ptr; |
| 245 | ptr += 256; |
| 246 | } |
| 247 | if (flags & kG_Flag) { |
| 248 | g = ptr; |
| 249 | ptr += 256; |
| 250 | } |
| 251 | if (flags & kB_Flag) { |
| 252 | b = ptr; |
| 253 | ptr += 256; |
| 254 | } |
| 255 | return SkTableColorFilter::CreateARGB(a, r, g, b); |
| 256 | } |
| 257 | |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 258 | bool SkTable_ColorFilter::asComponentTable(SkBitmap* table) const { |
mike@reedtribe.org | f23f5f7 | 2012-01-07 03:48:45 +0000 | [diff] [blame] | 259 | if (table) { |
| 260 | if (NULL == fBitmap) { |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 261 | SkBitmap* bmp = SkNEW(SkBitmap); |
reed@google.com | 9ebcac5 | 2014-01-24 18:53:42 +0000 | [diff] [blame] | 262 | bmp->allocPixels(SkImageInfo::MakeA8(256, 4)); |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 263 | uint8_t* bitmapPixels = bmp->getAddr8(0, 0); |
twiz@google.com | 5807116 | 2012-07-18 21:41:50 +0000 | [diff] [blame] | 264 | int offset = 0; |
| 265 | static const unsigned kFlags[] = { kA_Flag, kR_Flag, kG_Flag, kB_Flag }; |
| 266 | |
| 267 | for (int x = 0; x < 4; ++x) { |
| 268 | if (!(fFlags & kFlags[x])) { |
| 269 | memcpy(bitmapPixels, gIdentityTable, sizeof(gIdentityTable)); |
| 270 | } else { |
| 271 | memcpy(bitmapPixels, fStorage + offset, 256); |
| 272 | offset += 256; |
| 273 | } |
| 274 | bitmapPixels += 256; |
| 275 | } |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 276 | fBitmap = bmp; |
mike@reedtribe.org | f23f5f7 | 2012-01-07 03:48:45 +0000 | [diff] [blame] | 277 | } |
| 278 | *table = *fBitmap; |
| 279 | } |
| 280 | return true; |
| 281 | } |
| 282 | |
reed | 8a8d841 | 2015-03-02 13:46:03 -0800 | [diff] [blame] | 283 | // Combines the two lookup tables so that making a lookup using res[] has |
| 284 | // the same effect as making a lookup through inner[] then outer[]. |
| 285 | static void combine_tables(uint8_t res[256], const uint8_t outer[256], const uint8_t inner[256]) { |
| 286 | for (int i = 0; i < 256; i++) { |
| 287 | res[i] = outer[inner[i]]; |
| 288 | } |
| 289 | } |
| 290 | |
| 291 | SkColorFilter* SkTable_ColorFilter::newComposed(const SkColorFilter* innerFilter) const { |
| 292 | SkBitmap innerBM; |
| 293 | if (!innerFilter->asComponentTable(&innerBM)) { |
| 294 | return NULL; |
| 295 | } |
| 296 | |
| 297 | innerBM.lockPixels(); |
| 298 | if (NULL == innerBM.getPixels()) { |
| 299 | return NULL; |
| 300 | } |
| 301 | |
| 302 | const uint8_t* table = fStorage; |
| 303 | const uint8_t* tableA = gIdentityTable; |
| 304 | const uint8_t* tableR = gIdentityTable; |
| 305 | const uint8_t* tableG = gIdentityTable; |
| 306 | const uint8_t* tableB = gIdentityTable; |
| 307 | if (fFlags & kA_Flag) { |
| 308 | tableA = table; table += 256; |
| 309 | } |
| 310 | if (fFlags & kR_Flag) { |
| 311 | tableR = table; table += 256; |
| 312 | } |
| 313 | if (fFlags & kG_Flag) { |
| 314 | tableG = table; table += 256; |
| 315 | } |
| 316 | if (fFlags & kB_Flag) { |
| 317 | tableB = table; |
| 318 | } |
| 319 | |
| 320 | uint8_t concatA[256]; |
| 321 | uint8_t concatR[256]; |
| 322 | uint8_t concatG[256]; |
| 323 | uint8_t concatB[256]; |
| 324 | |
| 325 | combine_tables(concatA, tableA, innerBM.getAddr8(0, 0)); |
| 326 | combine_tables(concatR, tableR, innerBM.getAddr8(0, 1)); |
| 327 | combine_tables(concatG, tableG, innerBM.getAddr8(0, 2)); |
| 328 | combine_tables(concatB, tableB, innerBM.getAddr8(0, 3)); |
| 329 | |
| 330 | return SkTableColorFilter::CreateARGB(concatA, concatR, concatG, concatB); |
| 331 | } |
| 332 | |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 333 | #if SK_SUPPORT_GPU |
| 334 | |
bsalomon | 6251d17 | 2014-10-15 10:50:36 -0700 | [diff] [blame] | 335 | #include "GrFragmentProcessor.h" |
egdaniel | 605dd0f | 2014-11-12 08:35:25 -0800 | [diff] [blame] | 336 | #include "GrInvariantOutput.h" |
bsalomon | c6327a8 | 2014-10-27 12:53:08 -0700 | [diff] [blame] | 337 | #include "SkGr.h" |
| 338 | #include "effects/GrTextureStripAtlas.h" |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 339 | #include "gl/GrGLProcessor.h" |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 340 | #include "gl/builders/GrGLProgramBuilder.h" |
bsalomon | c6327a8 | 2014-10-27 12:53:08 -0700 | [diff] [blame] | 341 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 342 | class ColorTableEffect : public GrFragmentProcessor { |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 343 | public: |
bsalomon | c6327a8 | 2014-10-27 12:53:08 -0700 | [diff] [blame] | 344 | static GrFragmentProcessor* Create(GrContext* context, SkBitmap bitmap, unsigned flags); |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 345 | |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 346 | virtual ~ColorTableEffect(); |
| 347 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 348 | const char* name() const override { return "ColorTable"; } |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 349 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 350 | void getGLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder*) const override; |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 351 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 352 | GrGLFragmentProcessor* createGLInstance() const override; |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 353 | |
bsalomon | c6327a8 | 2014-10-27 12:53:08 -0700 | [diff] [blame] | 354 | const GrTextureStripAtlas* atlas() const { return fAtlas; } |
| 355 | int atlasRow() const { return fRow; } |
| 356 | |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 357 | private: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 358 | bool onIsEqual(const GrFragmentProcessor&) const override; |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 359 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 360 | void onComputeInvariantOutput(GrInvariantOutput* inout) const override; |
egdaniel | 1a8ecdf | 2014-10-03 06:24:12 -0700 | [diff] [blame] | 361 | |
bsalomon | c6327a8 | 2014-10-27 12:53:08 -0700 | [diff] [blame] | 362 | ColorTableEffect(GrTexture* texture, GrTextureStripAtlas* atlas, int row, unsigned flags); |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 363 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 364 | GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 365 | |
bsalomon | c6327a8 | 2014-10-27 12:53:08 -0700 | [diff] [blame] | 366 | GrTextureAccess fTextureAccess; |
| 367 | |
| 368 | // currently not used in shader code, just to assist onComputeInvariantOutput(). |
mtklein | 3f3b3d0 | 2014-12-01 11:47:08 -0800 | [diff] [blame] | 369 | unsigned fFlags; |
bsalomon | c6327a8 | 2014-10-27 12:53:08 -0700 | [diff] [blame] | 370 | |
| 371 | GrTextureStripAtlas* fAtlas; |
| 372 | int fRow; |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 373 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 374 | typedef GrFragmentProcessor INHERITED; |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 375 | }; |
| 376 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 377 | class GLColorTableEffect : public GrGLFragmentProcessor { |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 378 | public: |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 379 | GLColorTableEffect(const GrProcessor&); |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 380 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 381 | virtual void emitCode(GrGLFPBuilder*, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 382 | const GrFragmentProcessor&, |
bsalomon@google.com | 22a800a | 2012-10-26 19:16:46 +0000 | [diff] [blame] | 383 | const char* outputColor, |
| 384 | const char* inputColor, |
bsalomon@google.com | 77af680 | 2013-10-02 13:04:56 +0000 | [diff] [blame] | 385 | const TransformedCoordsArray&, |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 386 | const TextureSamplerArray&) override; |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 387 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 388 | void setData(const GrGLProgramDataManager&, const GrProcessor&) override; |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 389 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 390 | static void GenKey(const GrProcessor&, const GrGLSLCaps&, GrProcessorKeyBuilder* b) {} |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 391 | |
| 392 | private: |
bsalomon | c6327a8 | 2014-10-27 12:53:08 -0700 | [diff] [blame] | 393 | UniformHandle fRGBAYValuesUni; |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 394 | typedef GrGLFragmentProcessor INHERITED; |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 395 | }; |
| 396 | |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 397 | GLColorTableEffect::GLColorTableEffect(const GrProcessor&) { |
| 398 | } |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 399 | |
bsalomon | c6327a8 | 2014-10-27 12:53:08 -0700 | [diff] [blame] | 400 | void GLColorTableEffect::setData(const GrGLProgramDataManager& pdm, const GrProcessor& proc) { |
| 401 | // The textures are organized in a strip where the rows are ordered a, r, g, b. |
| 402 | float rgbaYValues[4]; |
| 403 | const ColorTableEffect& cte = proc.cast<ColorTableEffect>(); |
| 404 | if (cte.atlas()) { |
| 405 | SkScalar yDelta = cte.atlas()->getNormalizedTexelHeight(); |
| 406 | rgbaYValues[3] = cte.atlas()->getYOffset(cte.atlasRow()) + SK_ScalarHalf * yDelta; |
| 407 | rgbaYValues[0] = rgbaYValues[3] + yDelta; |
| 408 | rgbaYValues[1] = rgbaYValues[0] + yDelta; |
| 409 | rgbaYValues[2] = rgbaYValues[1] + yDelta; |
| 410 | } else { |
| 411 | rgbaYValues[3] = 0.125; |
| 412 | rgbaYValues[0] = 0.375; |
| 413 | rgbaYValues[1] = 0.625; |
mtklein | 3f3b3d0 | 2014-12-01 11:47:08 -0800 | [diff] [blame] | 414 | rgbaYValues[2] = 0.875; |
bsalomon | c6327a8 | 2014-10-27 12:53:08 -0700 | [diff] [blame] | 415 | } |
| 416 | pdm.set4fv(fRGBAYValuesUni, 1, rgbaYValues); |
| 417 | } |
| 418 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 419 | void GLColorTableEffect::emitCode(GrGLFPBuilder* builder, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 420 | const GrFragmentProcessor&, |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 421 | const char* outputColor, |
| 422 | const char* inputColor, |
bsalomon@google.com | 77af680 | 2013-10-02 13:04:56 +0000 | [diff] [blame] | 423 | const TransformedCoordsArray&, |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 424 | const TextureSamplerArray& samplers) { |
bsalomon | c6327a8 | 2014-10-27 12:53:08 -0700 | [diff] [blame] | 425 | const char* yoffsets; |
| 426 | fRGBAYValuesUni = builder->addUniform(GrGLFPBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 427 | kVec4f_GrSLType, kDefault_GrSLPrecision, |
| 428 | "yoffsets", &yoffsets); |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 429 | static const float kColorScaleFactor = 255.0f / 256.0f; |
| 430 | static const float kColorOffsetFactor = 1.0f / 512.0f; |
egdaniel | 29bee0f | 2015-04-29 11:54:42 -0700 | [diff] [blame] | 431 | GrGLFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder(); |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 432 | if (NULL == inputColor) { |
| 433 | // the input color is solid white (all ones). |
| 434 | static const float kMaxValue = kColorScaleFactor + kColorOffsetFactor; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 435 | fsBuilder->codeAppendf("\t\tvec4 coord = vec4(%f, %f, %f, %f);\n", |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 436 | kMaxValue, kMaxValue, kMaxValue, kMaxValue); |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 437 | |
| 438 | } else { |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 439 | fsBuilder->codeAppendf("\t\tfloat nonZeroAlpha = max(%s.a, .0001);\n", inputColor); |
| 440 | fsBuilder->codeAppendf("\t\tvec4 coord = vec4(%s.rgb / nonZeroAlpha, nonZeroAlpha);\n", inputColor); |
| 441 | fsBuilder->codeAppendf("\t\tcoord = coord * %f + vec4(%f, %f, %f, %f);\n", |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 442 | kColorScaleFactor, |
| 443 | kColorOffsetFactor, kColorOffsetFactor, |
| 444 | kColorOffsetFactor, kColorOffsetFactor); |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 445 | } |
| 446 | |
bsalomon | c6327a8 | 2014-10-27 12:53:08 -0700 | [diff] [blame] | 447 | SkString coord; |
| 448 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 449 | fsBuilder->codeAppendf("\t\t%s.a = ", outputColor); |
bsalomon | c6327a8 | 2014-10-27 12:53:08 -0700 | [diff] [blame] | 450 | coord.printf("vec2(coord.a, %s.a)", yoffsets); |
| 451 | fsBuilder->appendTextureLookup(samplers[0], coord.c_str()); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 452 | fsBuilder->codeAppend(";\n"); |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 453 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 454 | fsBuilder->codeAppendf("\t\t%s.r = ", outputColor); |
bsalomon | c6327a8 | 2014-10-27 12:53:08 -0700 | [diff] [blame] | 455 | coord.printf("vec2(coord.r, %s.r)", yoffsets); |
| 456 | fsBuilder->appendTextureLookup(samplers[0], coord.c_str()); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 457 | fsBuilder->codeAppend(";\n"); |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 458 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 459 | fsBuilder->codeAppendf("\t\t%s.g = ", outputColor); |
bsalomon | c6327a8 | 2014-10-27 12:53:08 -0700 | [diff] [blame] | 460 | coord.printf("vec2(coord.g, %s.g)", yoffsets); |
| 461 | fsBuilder->appendTextureLookup(samplers[0], coord.c_str()); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 462 | fsBuilder->codeAppend(";\n"); |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 463 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 464 | fsBuilder->codeAppendf("\t\t%s.b = ", outputColor); |
bsalomon | c6327a8 | 2014-10-27 12:53:08 -0700 | [diff] [blame] | 465 | coord.printf("vec2(coord.b, %s.b)", yoffsets); |
| 466 | fsBuilder->appendTextureLookup(samplers[0], coord.c_str()); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 467 | fsBuilder->codeAppend(";\n"); |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 468 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 469 | fsBuilder->codeAppendf("\t\t%s.rgb *= %s.a;\n", outputColor, outputColor); |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 470 | } |
| 471 | |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 472 | /////////////////////////////////////////////////////////////////////////////// |
bsalomon | c6327a8 | 2014-10-27 12:53:08 -0700 | [diff] [blame] | 473 | GrFragmentProcessor* ColorTableEffect::Create(GrContext* context, SkBitmap bitmap, unsigned flags) { |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 474 | |
bsalomon | c6327a8 | 2014-10-27 12:53:08 -0700 | [diff] [blame] | 475 | GrTextureStripAtlas::Desc desc; |
| 476 | desc.fWidth = bitmap.width(); |
| 477 | desc.fHeight = 128; |
| 478 | desc.fRowHeight = bitmap.height(); |
| 479 | desc.fContext = context; |
| 480 | desc.fConfig = SkImageInfo2GrPixelConfig(bitmap.info()); |
| 481 | GrTextureStripAtlas* atlas = GrTextureStripAtlas::GetAtlas(desc); |
| 482 | int row = atlas->lockRow(bitmap); |
| 483 | SkAutoTUnref<GrTexture> texture; |
| 484 | if (-1 == row) { |
| 485 | atlas = NULL; |
| 486 | // Passing params=NULL because this effect does no tiling or filtering. |
| 487 | texture.reset(GrRefCachedBitmapTexture(context, bitmap, NULL)); |
| 488 | } else { |
| 489 | texture.reset(SkRef(atlas->getTexture())); |
| 490 | } |
| 491 | |
| 492 | return SkNEW_ARGS(ColorTableEffect, (texture, atlas, row, flags)); |
| 493 | } |
| 494 | |
| 495 | ColorTableEffect::ColorTableEffect(GrTexture* texture, GrTextureStripAtlas* atlas, int row, |
| 496 | unsigned flags) |
bsalomon@google.com | 371e105 | 2013-01-11 21:08:55 +0000 | [diff] [blame] | 497 | : fTextureAccess(texture, "a") |
bsalomon | c6327a8 | 2014-10-27 12:53:08 -0700 | [diff] [blame] | 498 | , fFlags(flags) |
| 499 | , fAtlas(atlas) |
| 500 | , fRow(row) { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 501 | this->initClassID<ColorTableEffect>(); |
bsalomon@google.com | 50db75c | 2013-01-11 13:54:30 +0000 | [diff] [blame] | 502 | this->addTextureAccess(&fTextureAccess); |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 503 | } |
| 504 | |
| 505 | ColorTableEffect::~ColorTableEffect() { |
bsalomon | c6327a8 | 2014-10-27 12:53:08 -0700 | [diff] [blame] | 506 | if (fAtlas) { |
| 507 | fAtlas->unlockRow(fRow); |
| 508 | } |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 509 | } |
| 510 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 511 | void ColorTableEffect::getGLProcessorKey(const GrGLSLCaps& caps, |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 512 | GrProcessorKeyBuilder* b) const { |
| 513 | GLColorTableEffect::GenKey(*this, caps, b); |
| 514 | } |
| 515 | |
| 516 | GrGLFragmentProcessor* ColorTableEffect::createGLInstance() const { |
| 517 | return SkNEW_ARGS(GLColorTableEffect, (*this)); |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 518 | } |
| 519 | |
bsalomon | c6327a8 | 2014-10-27 12:53:08 -0700 | [diff] [blame] | 520 | bool ColorTableEffect::onIsEqual(const GrFragmentProcessor& other) const { |
| 521 | // For non-atlased instances, the texture (compared by base class) is sufficient to |
| 522 | // differentiate different tables. For atlased instances we ensure they are using the |
| 523 | // same row. |
| 524 | const ColorTableEffect& that = other.cast<ColorTableEffect>(); |
| 525 | SkASSERT(SkToBool(fAtlas) == SkToBool(that.fAtlas)); |
| 526 | // Ok to always do this comparison since both would be -1 if non-atlased. |
| 527 | return fRow == that.fRow; |
| 528 | } |
| 529 | |
egdaniel | 605dd0f | 2014-11-12 08:35:25 -0800 | [diff] [blame] | 530 | void ColorTableEffect::onComputeInvariantOutput(GrInvariantOutput* inout) const { |
bsalomon@google.com | 371e105 | 2013-01-11 21:08:55 +0000 | [diff] [blame] | 531 | // If we kept the table in the effect then we could actually run known inputs through the |
| 532 | // table. |
egdaniel | ccb2e38 | 2014-10-13 12:53:46 -0700 | [diff] [blame] | 533 | uint8_t invalidateFlags = 0; |
bsalomon@google.com | 371e105 | 2013-01-11 21:08:55 +0000 | [diff] [blame] | 534 | if (fFlags & SkTable_ColorFilter::kR_Flag) { |
egdaniel | ccb2e38 | 2014-10-13 12:53:46 -0700 | [diff] [blame] | 535 | invalidateFlags |= kR_GrColorComponentFlag; |
bsalomon@google.com | 371e105 | 2013-01-11 21:08:55 +0000 | [diff] [blame] | 536 | } |
| 537 | if (fFlags & SkTable_ColorFilter::kG_Flag) { |
egdaniel | ccb2e38 | 2014-10-13 12:53:46 -0700 | [diff] [blame] | 538 | invalidateFlags |= kG_GrColorComponentFlag; |
bsalomon@google.com | 371e105 | 2013-01-11 21:08:55 +0000 | [diff] [blame] | 539 | } |
| 540 | if (fFlags & SkTable_ColorFilter::kB_Flag) { |
egdaniel | ccb2e38 | 2014-10-13 12:53:46 -0700 | [diff] [blame] | 541 | invalidateFlags |= kB_GrColorComponentFlag; |
bsalomon@google.com | 371e105 | 2013-01-11 21:08:55 +0000 | [diff] [blame] | 542 | } |
| 543 | if (fFlags & SkTable_ColorFilter::kA_Flag) { |
egdaniel | ccb2e38 | 2014-10-13 12:53:46 -0700 | [diff] [blame] | 544 | invalidateFlags |= kA_GrColorComponentFlag; |
bsalomon@google.com | 371e105 | 2013-01-11 21:08:55 +0000 | [diff] [blame] | 545 | } |
egdaniel | 605dd0f | 2014-11-12 08:35:25 -0800 | [diff] [blame] | 546 | inout->invalidateComponents(invalidateFlags, GrInvariantOutput::kWill_ReadInput); |
bsalomon@google.com | 371e105 | 2013-01-11 21:08:55 +0000 | [diff] [blame] | 547 | } |
| 548 | |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 549 | /////////////////////////////////////////////////////////////////////////////// |
| 550 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 551 | GR_DEFINE_FRAGMENT_PROCESSOR_TEST(ColorTableEffect); |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 552 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 553 | GrFragmentProcessor* ColorTableEffect::TestCreate(SkRandom* random, |
| 554 | GrContext* context, |
bsalomon | 4b91f76 | 2015-05-19 09:29:46 -0700 | [diff] [blame] | 555 | const GrCaps&, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 556 | GrTexture* textures[]) { |
bsalomon | c6327a8 | 2014-10-27 12:53:08 -0700 | [diff] [blame] | 557 | int flags = 0; |
| 558 | uint8_t luts[256][4]; |
| 559 | do { |
| 560 | for (int i = 0; i < 4; ++i) { |
| 561 | flags |= random->nextBool() ? (1 << i): 0; |
| 562 | } |
| 563 | } while (!flags); |
| 564 | for (int i = 0; i < 4; ++i) { |
| 565 | if (flags & (1 << i)) { |
| 566 | for (int j = 0; j < 256; ++j) { |
| 567 | luts[j][i] = SkToU8(random->nextBits(8)); |
| 568 | } |
| 569 | } |
| 570 | } |
| 571 | SkAutoTUnref<SkColorFilter> filter(SkTableColorFilter::CreateARGB( |
| 572 | (flags & (1 << 0)) ? luts[0] : NULL, |
| 573 | (flags & (1 << 1)) ? luts[1] : NULL, |
| 574 | (flags & (1 << 2)) ? luts[2] : NULL, |
| 575 | (flags & (1 << 3)) ? luts[3] : NULL |
| 576 | )); |
reed | cff10b2 | 2015-03-03 06:41:45 -0800 | [diff] [blame] | 577 | |
| 578 | SkTDArray<GrFragmentProcessor*> array; |
| 579 | if (filter->asFragmentProcessors(context, &array)) { |
| 580 | SkASSERT(1 == array.count()); // TableColorFilter only returns 1 |
| 581 | return array[0]; |
| 582 | } |
| 583 | return NULL; |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 584 | } |
| 585 | |
reed | cff10b2 | 2015-03-03 06:41:45 -0800 | [diff] [blame] | 586 | bool SkTable_ColorFilter::asFragmentProcessors(GrContext* context, |
| 587 | SkTDArray<GrFragmentProcessor*>* array) const { |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 588 | SkBitmap bitmap; |
| 589 | this->asComponentTable(&bitmap); |
bsalomon | c6327a8 | 2014-10-27 12:53:08 -0700 | [diff] [blame] | 590 | |
reed | cff10b2 | 2015-03-03 06:41:45 -0800 | [diff] [blame] | 591 | GrFragmentProcessor* frag = ColorTableEffect::Create(context, bitmap, fFlags); |
| 592 | if (frag) { |
| 593 | if (array) { |
| 594 | *array->append() = frag; |
| 595 | } |
| 596 | return true; |
| 597 | } |
| 598 | return false; |
bsalomon@google.com | b2ad101 | 2012-10-17 15:00:32 +0000 | [diff] [blame] | 599 | } |
| 600 | |
| 601 | #endif // SK_SUPPORT_GPU |
| 602 | |
mike@reedtribe.org | a69b48c | 2011-12-28 20:31:00 +0000 | [diff] [blame] | 603 | /////////////////////////////////////////////////////////////////////////////// |
| 604 | |
| 605 | #ifdef SK_CPU_BENDIAN |
| 606 | #else |
| 607 | #define SK_A32_INDEX (3 - (SK_A32_SHIFT >> 3)) |
| 608 | #define SK_R32_INDEX (3 - (SK_R32_SHIFT >> 3)) |
| 609 | #define SK_G32_INDEX (3 - (SK_G32_SHIFT >> 3)) |
| 610 | #define SK_B32_INDEX (3 - (SK_B32_SHIFT >> 3)) |
| 611 | #endif |
| 612 | |
| 613 | /////////////////////////////////////////////////////////////////////////////// |
| 614 | |
| 615 | SkColorFilter* SkTableColorFilter::Create(const uint8_t table[256]) { |
| 616 | return SkNEW_ARGS(SkTable_ColorFilter, (table, table, table, table)); |
| 617 | } |
| 618 | |
| 619 | SkColorFilter* SkTableColorFilter::CreateARGB(const uint8_t tableA[256], |
| 620 | const uint8_t tableR[256], |
| 621 | const uint8_t tableG[256], |
| 622 | const uint8_t tableB[256]) { |
| 623 | return SkNEW_ARGS(SkTable_ColorFilter, (tableA, tableR, tableG, tableB)); |
| 624 | } |
djsollen@google.com | a2ca41e | 2012-03-23 19:00:34 +0000 | [diff] [blame] | 625 | |
| 626 | SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_START(SkTableColorFilter) |
| 627 | SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkTable_ColorFilter) |
| 628 | SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END |