epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2006 The Android Open Source Project |
| 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 | |
commit-bot@chromium.org | a5572e5 | 2014-03-07 03:24:41 +0000 | [diff] [blame] | 8 | #include "SkBitmapProcShader.h" |
| 9 | #include "SkReadBuffer.h" |
| 10 | #include "SkMallocPixelRef.h" |
| 11 | #include "SkPaint.h" |
commit-bot@chromium.org | c5d9bb0 | 2014-04-08 15:19:34 +0000 | [diff] [blame] | 12 | #include "SkPicture.h" |
| 13 | #include "SkPictureShader.h" |
vandebo@chromium.org | d3ae779 | 2011-02-24 00:21:06 +0000 | [diff] [blame] | 14 | #include "SkScalar.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 15 | #include "SkShader.h" |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 16 | #include "SkWriteBuffer.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 17 | |
commit-bot@chromium.org | 9c9005a | 2014-04-28 14:55:39 +0000 | [diff] [blame] | 18 | SkShader::SkShader(const SkMatrix* localMatrix) { |
| 19 | if (localMatrix) { |
| 20 | fLocalMatrix = *localMatrix; |
| 21 | } else { |
| 22 | fLocalMatrix.reset(); |
| 23 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 24 | } |
| 25 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 26 | SkShader::SkShader(SkReadBuffer& buffer) |
bsalomon@google.com | f94b3a4 | 2012-10-31 18:09:01 +0000 | [diff] [blame] | 27 | : INHERITED(buffer) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 28 | if (buffer.readBool()) { |
bsalomon@google.com | f94b3a4 | 2012-10-31 18:09:01 +0000 | [diff] [blame] | 29 | buffer.readMatrix(&fLocalMatrix); |
| 30 | } else { |
| 31 | fLocalMatrix.reset(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 32 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 33 | } |
| 34 | |
| 35 | SkShader::~SkShader() { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 36 | } |
| 37 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 38 | void SkShader::flatten(SkWriteBuffer& buffer) const { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 39 | this->INHERITED::flatten(buffer); |
bsalomon@google.com | f94b3a4 | 2012-10-31 18:09:01 +0000 | [diff] [blame] | 40 | bool hasLocalM = this->hasLocalMatrix(); |
| 41 | buffer.writeBool(hasLocalM); |
| 42 | if (hasLocalM) { |
| 43 | buffer.writeMatrix(fLocalMatrix); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 44 | } |
| 45 | } |
| 46 | |
commit-bot@chromium.org | 87fcd95 | 2014-04-23 19:10:51 +0000 | [diff] [blame] | 47 | bool SkShader::computeTotalInverse(const SkMatrix& matrix, SkMatrix* totalInverse) const { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 48 | const SkMatrix* m = &matrix; |
| 49 | SkMatrix total; |
| 50 | |
bsalomon@google.com | f94b3a4 | 2012-10-31 18:09:01 +0000 | [diff] [blame] | 51 | if (this->hasLocalMatrix()) { |
| 52 | total.setConcat(matrix, this->getLocalMatrix()); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 53 | m = &total; |
| 54 | } |
commit-bot@chromium.org | 87fcd95 | 2014-04-23 19:10:51 +0000 | [diff] [blame] | 55 | |
| 56 | return m->invert(totalInverse); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 57 | } |
| 58 | |
commit-bot@chromium.org | e901b6d | 2014-05-01 19:31:31 +0000 | [diff] [blame] | 59 | bool SkShader::validContext(const ContextRec& rec, SkMatrix* totalInverse) const { |
| 60 | return this->computeTotalInverse(*rec.fMatrix, totalInverse); |
reed@google.com | a641f3f | 2012-12-13 22:16:30 +0000 | [diff] [blame] | 61 | } |
| 62 | |
commit-bot@chromium.org | e901b6d | 2014-05-01 19:31:31 +0000 | [diff] [blame] | 63 | SkShader::Context* SkShader::createContext(const ContextRec&, void* storage) const { |
commit-bot@chromium.org | f3e5059 | 2014-04-30 23:29:02 +0000 | [diff] [blame] | 64 | return NULL; |
| 65 | } |
| 66 | |
| 67 | size_t SkShader::contextSize() const { |
| 68 | return 0; |
| 69 | } |
| 70 | |
commit-bot@chromium.org | e901b6d | 2014-05-01 19:31:31 +0000 | [diff] [blame] | 71 | SkShader::Context::Context(const SkShader& shader, const ContextRec& rec) |
commit-bot@chromium.org | 87fcd95 | 2014-04-23 19:10:51 +0000 | [diff] [blame] | 72 | : fShader(shader) |
| 73 | { |
commit-bot@chromium.org | e901b6d | 2014-05-01 19:31:31 +0000 | [diff] [blame] | 74 | SkASSERT(fShader.validContext(rec)); |
commit-bot@chromium.org | 87fcd95 | 2014-04-23 19:10:51 +0000 | [diff] [blame] | 75 | |
| 76 | // Because the context parameters must be valid at this point, we know that the matrix is |
| 77 | // invertible. |
commit-bot@chromium.org | e901b6d | 2014-05-01 19:31:31 +0000 | [diff] [blame] | 78 | SkAssertResult(fShader.computeTotalInverse(*rec.fMatrix, &fTotalInverse)); |
commit-bot@chromium.org | 87fcd95 | 2014-04-23 19:10:51 +0000 | [diff] [blame] | 79 | fTotalInverseClass = (uint8_t)ComputeMatrixClass(fTotalInverse); |
| 80 | |
commit-bot@chromium.org | e901b6d | 2014-05-01 19:31:31 +0000 | [diff] [blame] | 81 | fPaintAlpha = rec.fPaint->getAlpha(); |
commit-bot@chromium.org | 87fcd95 | 2014-04-23 19:10:51 +0000 | [diff] [blame] | 82 | } |
| 83 | |
| 84 | SkShader::Context::~Context() {} |
| 85 | |
| 86 | SkShader::Context::ShadeProc SkShader::Context::asAShadeProc(void** ctx) { |
reed@google.com | 3bafe74 | 2012-10-12 18:56:18 +0000 | [diff] [blame] | 87 | return NULL; |
| 88 | } |
| 89 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 90 | #include "SkColorPriv.h" |
| 91 | |
commit-bot@chromium.org | 87fcd95 | 2014-04-23 19:10:51 +0000 | [diff] [blame] | 92 | void SkShader::Context::shadeSpan16(int x, int y, uint16_t span16[], int count) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 93 | SkASSERT(span16); |
| 94 | SkASSERT(count > 0); |
| 95 | SkASSERT(this->canCallShadeSpan16()); |
| 96 | |
| 97 | // basically, if we get here, the subclass screwed up |
tomhudson@google.com | 0c00f21 | 2011-12-28 14:59:50 +0000 | [diff] [blame] | 98 | SkDEBUGFAIL("kHasSpan16 flag is set, but shadeSpan16() not implemented"); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 99 | } |
| 100 | |
| 101 | #define kTempColorQuadCount 6 // balance between speed (larger) and saving stack-space |
reed@google.com | 7c2f27d | 2011-03-07 19:29:00 +0000 | [diff] [blame] | 102 | #define kTempColorCount (kTempColorQuadCount << 2) |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 103 | |
| 104 | #ifdef SK_CPU_BENDIAN |
| 105 | #define SkU32BitShiftToByteOffset(shift) (3 - ((shift) >> 3)) |
| 106 | #else |
| 107 | #define SkU32BitShiftToByteOffset(shift) ((shift) >> 3) |
| 108 | #endif |
| 109 | |
commit-bot@chromium.org | 87fcd95 | 2014-04-23 19:10:51 +0000 | [diff] [blame] | 110 | void SkShader::Context::shadeSpanAlpha(int x, int y, uint8_t alpha[], int count) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 111 | SkASSERT(count > 0); |
| 112 | |
| 113 | SkPMColor colors[kTempColorCount]; |
| 114 | |
| 115 | while ((count -= kTempColorCount) >= 0) { |
| 116 | this->shadeSpan(x, y, colors, kTempColorCount); |
| 117 | x += kTempColorCount; |
| 118 | |
| 119 | const uint8_t* srcA = (const uint8_t*)colors + SkU32BitShiftToByteOffset(SK_A32_SHIFT); |
| 120 | int quads = kTempColorQuadCount; |
| 121 | do { |
| 122 | U8CPU a0 = srcA[0]; |
| 123 | U8CPU a1 = srcA[4]; |
| 124 | U8CPU a2 = srcA[8]; |
| 125 | U8CPU a3 = srcA[12]; |
| 126 | srcA += 4*4; |
| 127 | *alpha++ = SkToU8(a0); |
| 128 | *alpha++ = SkToU8(a1); |
| 129 | *alpha++ = SkToU8(a2); |
| 130 | *alpha++ = SkToU8(a3); |
| 131 | } while (--quads != 0); |
| 132 | } |
| 133 | SkASSERT(count < 0); |
| 134 | SkASSERT(count + kTempColorCount >= 0); |
| 135 | if (count += kTempColorCount) { |
| 136 | this->shadeSpan(x, y, colors, count); |
| 137 | |
| 138 | const uint8_t* srcA = (const uint8_t*)colors + SkU32BitShiftToByteOffset(SK_A32_SHIFT); |
| 139 | do { |
| 140 | *alpha++ = *srcA; |
| 141 | srcA += 4; |
| 142 | } while (--count != 0); |
| 143 | } |
| 144 | #if 0 |
| 145 | do { |
| 146 | int n = count; |
| 147 | if (n > kTempColorCount) |
| 148 | n = kTempColorCount; |
| 149 | SkASSERT(n > 0); |
| 150 | |
| 151 | this->shadeSpan(x, y, colors, n); |
| 152 | x += n; |
| 153 | count -= n; |
| 154 | |
| 155 | const uint8_t* srcA = (const uint8_t*)colors + SkU32BitShiftToByteOffset(SK_A32_SHIFT); |
| 156 | do { |
| 157 | *alpha++ = *srcA; |
| 158 | srcA += 4; |
| 159 | } while (--n != 0); |
| 160 | } while (count > 0); |
| 161 | #endif |
| 162 | } |
| 163 | |
commit-bot@chromium.org | 87fcd95 | 2014-04-23 19:10:51 +0000 | [diff] [blame] | 164 | SkShader::Context::MatrixClass SkShader::Context::ComputeMatrixClass(const SkMatrix& mat) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 165 | MatrixClass mc = kLinear_MatrixClass; |
| 166 | |
tomhudson@google.com | 8d43018 | 2011-06-06 19:11:19 +0000 | [diff] [blame] | 167 | if (mat.hasPerspective()) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 168 | if (mat.fixedStepInX(0, NULL, NULL)) { |
| 169 | mc = kFixedStepInX_MatrixClass; |
| 170 | } else { |
| 171 | mc = kPerspective_MatrixClass; |
| 172 | } |
| 173 | } |
| 174 | return mc; |
| 175 | } |
| 176 | |
| 177 | ////////////////////////////////////////////////////////////////////////////// |
| 178 | |
commit-bot@chromium.org | 87fcd95 | 2014-04-23 19:10:51 +0000 | [diff] [blame] | 179 | SkShader::BitmapType SkShader::asABitmap(SkBitmap*, SkMatrix*, TileMode*) const { |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 180 | return kNone_BitmapType; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 181 | } |
| 182 | |
vandebo@chromium.org | d3ae779 | 2011-02-24 00:21:06 +0000 | [diff] [blame] | 183 | SkShader::GradientType SkShader::asAGradient(GradientInfo* info) const { |
| 184 | return kNone_GradientType; |
| 185 | } |
| 186 | |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 187 | GrEffectRef* SkShader::asNewEffect(GrContext*, const SkPaint&) const { |
humper@google.com | a3bdc1a | 2013-01-14 21:01:28 +0000 | [diff] [blame] | 188 | return NULL; |
rileya@google.com | 03c1c35 | 2012-07-20 20:02:43 +0000 | [diff] [blame] | 189 | } |
| 190 | |
commit-bot@chromium.org | 9c9005a | 2014-04-28 14:55:39 +0000 | [diff] [blame] | 191 | SkShader* SkShader::CreateBitmapShader(const SkBitmap& src, TileMode tmx, TileMode tmy, |
| 192 | const SkMatrix* localMatrix) { |
| 193 | return ::CreateBitmapShader(src, tmx, tmy, localMatrix, NULL); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 194 | } |
| 195 | |
commit-bot@chromium.org | 5aacfe9 | 2014-05-02 21:23:52 +0000 | [diff] [blame^] | 196 | SkShader* SkShader::CreatePictureShader(SkPicture* src, TileMode tmx, TileMode tmy, |
| 197 | const SkMatrix* localMatrix) { |
| 198 | return SkPictureShader::Create(src, tmx, tmy, localMatrix); |
commit-bot@chromium.org | c5d9bb0 | 2014-04-08 15:19:34 +0000 | [diff] [blame] | 199 | } |
| 200 | |
commit-bot@chromium.org | 0f10f7b | 2014-03-13 18:02:17 +0000 | [diff] [blame] | 201 | #ifndef SK_IGNORE_TO_STRING |
robertphillips@google.com | 76f9e93 | 2013-01-15 20:17:47 +0000 | [diff] [blame] | 202 | void SkShader::toString(SkString* str) const { |
| 203 | if (this->hasLocalMatrix()) { |
| 204 | str->append(" "); |
| 205 | this->getLocalMatrix().toString(str); |
| 206 | } |
| 207 | } |
| 208 | #endif |
| 209 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 210 | ////////////////////////////////////////////////////////////////////////////// |
| 211 | |
| 212 | #include "SkColorShader.h" |
| 213 | #include "SkUtils.h" |
| 214 | |
commit-bot@chromium.org | 87fcd95 | 2014-04-23 19:10:51 +0000 | [diff] [blame] | 215 | SkColorShader::SkColorShader(SkColor c) |
commit-bot@chromium.org | 76a3b2a | 2014-04-24 16:54:46 +0000 | [diff] [blame] | 216 | : fColor(c) { |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 217 | } |
| 218 | |
junov@chromium.org | b6e1619 | 2011-12-09 15:48:03 +0000 | [diff] [blame] | 219 | bool SkColorShader::isOpaque() const { |
junov@chromium.org | b6e1619 | 2011-12-09 15:48:03 +0000 | [diff] [blame] | 220 | return SkColorGetA(fColor) == 255; |
| 221 | } |
| 222 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 223 | SkColorShader::SkColorShader(SkReadBuffer& b) : INHERITED(b) { |
commit-bot@chromium.org | 76a3b2a | 2014-04-24 16:54:46 +0000 | [diff] [blame] | 224 | // V25_COMPATIBILITY_CODE We had a boolean to make the color shader inherit the paint's |
| 225 | // color. We don't support that any more. |
| 226 | if (b.pictureVersion() < 26 && 0 != b.pictureVersion()) { |
| 227 | if (b.readBool()) { |
| 228 | SkDEBUGFAIL("We shouldn't have pictures that recorded the inherited case."); |
| 229 | fColor = SK_ColorWHITE; |
| 230 | return; |
| 231 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 232 | } |
djsollen@google.com | c73dd5c | 2012-08-07 15:54:32 +0000 | [diff] [blame] | 233 | fColor = b.readColor(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 234 | } |
| 235 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 236 | void SkColorShader::flatten(SkWriteBuffer& buffer) const { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 237 | this->INHERITED::flatten(buffer); |
djsollen@google.com | c73dd5c | 2012-08-07 15:54:32 +0000 | [diff] [blame] | 238 | buffer.writeColor(fColor); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 239 | } |
| 240 | |
commit-bot@chromium.org | 87fcd95 | 2014-04-23 19:10:51 +0000 | [diff] [blame] | 241 | uint32_t SkColorShader::ColorShaderContext::getFlags() const { |
reed@google.com | 59ccef6 | 2011-12-07 14:59:50 +0000 | [diff] [blame] | 242 | return fFlags; |
| 243 | } |
| 244 | |
commit-bot@chromium.org | 87fcd95 | 2014-04-23 19:10:51 +0000 | [diff] [blame] | 245 | uint8_t SkColorShader::ColorShaderContext::getSpan16Alpha() const { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 246 | return SkGetPackedA32(fPMColor); |
| 247 | } |
| 248 | |
commit-bot@chromium.org | e901b6d | 2014-05-01 19:31:31 +0000 | [diff] [blame] | 249 | SkShader::Context* SkColorShader::createContext(const ContextRec& rec, void* storage) const { |
| 250 | if (!this->validContext(rec)) { |
commit-bot@chromium.org | 87fcd95 | 2014-04-23 19:10:51 +0000 | [diff] [blame] | 251 | return NULL; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 252 | } |
| 253 | |
commit-bot@chromium.org | e901b6d | 2014-05-01 19:31:31 +0000 | [diff] [blame] | 254 | return SkNEW_PLACEMENT_ARGS(storage, ColorShaderContext, (*this, rec)); |
commit-bot@chromium.org | 87fcd95 | 2014-04-23 19:10:51 +0000 | [diff] [blame] | 255 | } |
| 256 | |
| 257 | SkColorShader::ColorShaderContext::ColorShaderContext(const SkColorShader& shader, |
commit-bot@chromium.org | e901b6d | 2014-05-01 19:31:31 +0000 | [diff] [blame] | 258 | const ContextRec& rec) |
| 259 | : INHERITED(shader, rec) |
commit-bot@chromium.org | 87fcd95 | 2014-04-23 19:10:51 +0000 | [diff] [blame] | 260 | { |
commit-bot@chromium.org | 9c9005a | 2014-04-28 14:55:39 +0000 | [diff] [blame] | 261 | SkColor color = shader.fColor; |
commit-bot@chromium.org | e901b6d | 2014-05-01 19:31:31 +0000 | [diff] [blame] | 262 | unsigned a = SkAlphaMul(SkColorGetA(color), SkAlpha255To256(rec.fPaint->getAlpha())); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 263 | |
commit-bot@chromium.org | 87fcd95 | 2014-04-23 19:10:51 +0000 | [diff] [blame] | 264 | unsigned r = SkColorGetR(color); |
| 265 | unsigned g = SkColorGetG(color); |
| 266 | unsigned b = SkColorGetB(color); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 267 | |
| 268 | // we want this before we apply any alpha |
| 269 | fColor16 = SkPack888ToRGB16(r, g, b); |
| 270 | |
| 271 | if (a != 255) { |
reed@android.com | 8f07338 | 2010-03-11 21:56:16 +0000 | [diff] [blame] | 272 | r = SkMulDiv255Round(r, a); |
| 273 | g = SkMulDiv255Round(g, a); |
| 274 | b = SkMulDiv255Round(b, a); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 275 | } |
| 276 | fPMColor = SkPackARGB32(a, r, g, b); |
| 277 | |
reed@android.com | 8f07338 | 2010-03-11 21:56:16 +0000 | [diff] [blame] | 278 | fFlags = kConstInY32_Flag; |
reed@android.com | 5b81535 | 2010-03-11 22:20:43 +0000 | [diff] [blame] | 279 | if (255 == a) { |
reed@android.com | 5119bdb | 2009-06-12 21:27:03 +0000 | [diff] [blame] | 280 | fFlags |= kOpaqueAlpha_Flag; |
commit-bot@chromium.org | e901b6d | 2014-05-01 19:31:31 +0000 | [diff] [blame] | 281 | if (rec.fPaint->isDither() == false) { |
reed@android.com | 5b81535 | 2010-03-11 22:20:43 +0000 | [diff] [blame] | 282 | fFlags |= kHasSpan16_Flag; |
| 283 | } |
reed@android.com | 5119bdb | 2009-06-12 21:27:03 +0000 | [diff] [blame] | 284 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 285 | } |
| 286 | |
commit-bot@chromium.org | 87fcd95 | 2014-04-23 19:10:51 +0000 | [diff] [blame] | 287 | void SkColorShader::ColorShaderContext::shadeSpan(int x, int y, SkPMColor span[], int count) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 288 | sk_memset32(span, fPMColor, count); |
| 289 | } |
| 290 | |
commit-bot@chromium.org | 87fcd95 | 2014-04-23 19:10:51 +0000 | [diff] [blame] | 291 | void SkColorShader::ColorShaderContext::shadeSpan16(int x, int y, uint16_t span[], int count) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 292 | sk_memset16(span, fColor16, count); |
| 293 | } |
| 294 | |
commit-bot@chromium.org | 87fcd95 | 2014-04-23 19:10:51 +0000 | [diff] [blame] | 295 | void SkColorShader::ColorShaderContext::shadeSpanAlpha(int x, int y, uint8_t alpha[], int count) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 296 | memset(alpha, SkGetPackedA32(fPMColor), count); |
| 297 | } |
| 298 | |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 299 | // if we had a asAColor method, that would be more efficient... |
| 300 | SkShader::BitmapType SkColorShader::asABitmap(SkBitmap* bitmap, SkMatrix* matrix, |
rileya@google.com | 91f319c | 2012-07-25 17:18:31 +0000 | [diff] [blame] | 301 | TileMode modes[]) const { |
reed@google.com | 2be9e8b | 2011-07-06 21:18:09 +0000 | [diff] [blame] | 302 | return kNone_BitmapType; |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 303 | } |
| 304 | |
vandebo@chromium.org | d3ae779 | 2011-02-24 00:21:06 +0000 | [diff] [blame] | 305 | SkShader::GradientType SkColorShader::asAGradient(GradientInfo* info) const { |
| 306 | if (info) { |
| 307 | if (info->fColors && info->fColorCount >= 1) { |
| 308 | info->fColors[0] = fColor; |
| 309 | } |
| 310 | info->fColorCount = 1; |
| 311 | info->fTileMode = SkShader::kRepeat_TileMode; |
| 312 | } |
| 313 | return kColor_GradientType; |
| 314 | } |
reed@google.com | 37a2012 | 2011-07-05 18:54:12 +0000 | [diff] [blame] | 315 | |
commit-bot@chromium.org | 0f10f7b | 2014-03-13 18:02:17 +0000 | [diff] [blame] | 316 | #ifndef SK_IGNORE_TO_STRING |
robertphillips@google.com | 76f9e93 | 2013-01-15 20:17:47 +0000 | [diff] [blame] | 317 | void SkColorShader::toString(SkString* str) const { |
| 318 | str->append("SkColorShader: ("); |
| 319 | |
commit-bot@chromium.org | 76a3b2a | 2014-04-24 16:54:46 +0000 | [diff] [blame] | 320 | str->append("Color: "); |
| 321 | str->appendHex(fColor); |
robertphillips@google.com | 76f9e93 | 2013-01-15 20:17:47 +0000 | [diff] [blame] | 322 | |
| 323 | this->INHERITED::toString(str); |
| 324 | |
| 325 | str->append(")"); |
| 326 | } |
| 327 | #endif |
| 328 | |
reed@google.com | 37a2012 | 2011-07-05 18:54:12 +0000 | [diff] [blame] | 329 | /////////////////////////////////////////////////////////////////////////////// |
| 330 | |
commit-bot@chromium.org | 87fcd95 | 2014-04-23 19:10:51 +0000 | [diff] [blame] | 331 | #ifndef SK_IGNORE_TO_STRING |
reed@google.com | 37a2012 | 2011-07-05 18:54:12 +0000 | [diff] [blame] | 332 | #include "SkEmptyShader.h" |
| 333 | |
robertphillips@google.com | 76f9e93 | 2013-01-15 20:17:47 +0000 | [diff] [blame] | 334 | void SkEmptyShader::toString(SkString* str) const { |
| 335 | str->append("SkEmptyShader: ("); |
| 336 | |
| 337 | this->INHERITED::toString(str); |
| 338 | |
| 339 | str->append(")"); |
| 340 | } |
| 341 | #endif |