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gfx/skia/trunk/src/core/SkBitmapShaderTemplate.h@129ffea94266 (annotated)

gfx/skia/trunk/src/core/SkBitmapShaderTemplate.h

Sat, 03 Jan 2015 20:18:00 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Sat, 03 Jan 2015 20:18:00 +0100
branch
TOR_BUG_3246
changeset 7
129ffea94266
permissions
-rw-r--r--

Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.

michael@0 1
michael@0 2 /*
michael@0 3 * Copyright 2006 The Android Open Source Project
michael@0 4 *
michael@0 5 * Use of this source code is governed by a BSD-style license that can be
michael@0 6 * found in the LICENSE file.
michael@0 7 */
michael@0 8
michael@0 9
michael@0 10
michael@0 11 #ifndef NOFILTER_BITMAP_SHADER_PREAMBLE
michael@0 12 #define NOFILTER_BITMAP_SHADER_PREAMBLE(bitmap, rb)
michael@0 13 #endif
michael@0 14 #ifndef NOFILTER_BITMAP_SHADER_POSTAMBLE
michael@0 15 #define NOFILTER_BITMAP_SHADER_POSTAMBLE(bitmap)
michael@0 16 #endif
michael@0 17 #ifndef NOFILTER_BITMAP_SHADER_PREAMBLE16
michael@0 18 #define NOFILTER_BITMAP_SHADER_PREAMBLE16(bitmap, rb)
michael@0 19 #endif
michael@0 20 #ifndef NOFILTER_BITMAP_SHADER_POSTAMBLE16
michael@0 21 #define NOFILTER_BITMAP_SHADER_POSTAMBLE16(bitmap)
michael@0 22 #endif
michael@0 23
michael@0 24 class NOFILTER_BITMAP_SHADER_CLASS : public HasSpan16_Sampler_BitmapShader {
michael@0 25 public:
michael@0 26 NOFILTER_BITMAP_SHADER_CLASS(const SkBitmap& src)
michael@0 27 : HasSpan16_Sampler_BitmapShader(src, false,
michael@0 28 NOFILTER_BITMAP_SHADER_TILEMODE,
michael@0 29 NOFILTER_BITMAP_SHADER_TILEMODE)
michael@0 30 {
michael@0 31 }
michael@0 32
michael@0 33 virtual bool setContext(const SkBitmap& device, const SkPaint& paint, const SkMatrix& matrix)
michael@0 34 {
michael@0 35 if (!this->INHERITED::setContext(device, paint, matrix))
michael@0 36 return false;
michael@0 37
michael@0 38 #ifdef NOFILTER_BITMAP_SHADER_USE_UNITINVERSE
michael@0 39 this->computeUnitInverse();
michael@0 40 #endif
michael@0 41 return true;
michael@0 42 }
michael@0 43
michael@0 44 virtual void shadeSpan(int x, int y, SkPMColor dstC[], int count)
michael@0 45 {
michael@0 46 SkASSERT(count > 0);
michael@0 47
michael@0 48 #ifdef NOFILTER_BITMAP_SHADER_SPRITEPROC32
michael@0 49 if ((this->getTotalInverse().getType() & ~SkMatrix::kTranslate_Mask) == 0)
michael@0 50 {
michael@0 51 NOFILTER_BITMAP_SHADER_SPRITEPROC32(this, x, y, dstC, count);
michael@0 52 return;
michael@0 53 }
michael@0 54 #endif
michael@0 55
michael@0 56 unsigned scale = SkAlpha255To256(this->getPaintAlpha());
michael@0 57 #ifdef NOFILTER_BITMAP_SHADER_USE_UNITINVERSE
michael@0 58 const SkMatrix& inv = this->getUnitInverse();
michael@0 59 SkMatrix::MapPtProc invProc = this->getUnitInverseProc();
michael@0 60 #else
michael@0 61 const SkMatrix& inv = this->getTotalInverse();
michael@0 62 SkMatrix::MapPtProc invProc = this->getInverseMapPtProc();
michael@0 63 #endif
michael@0 64 const SkBitmap& srcBitmap = this->getSrcBitmap();
michael@0 65 unsigned srcMaxX = srcBitmap.width() - 1;
michael@0 66 unsigned srcMaxY = srcBitmap.height() - 1;
michael@0 67 unsigned srcRB = srcBitmap.rowBytes();
michael@0 68 SkFixed fx, fy, dx, dy;
michael@0 69
michael@0 70 const NOFILTER_BITMAP_SHADER_TYPE* srcPixels = (const NOFILTER_BITMAP_SHADER_TYPE*)srcBitmap.getPixels();
michael@0 71 NOFILTER_BITMAP_SHADER_PREAMBLE(srcBitmap, srcRB);
michael@0 72
michael@0 73 if (this->getInverseClass() == kPerspective_MatrixClass)
michael@0 74 {
michael@0 75 SkPerspIter iter(inv, SkIntToScalar(x) + SK_ScalarHalf,
michael@0 76 SkIntToScalar(y) + SK_ScalarHalf, count);
michael@0 77 while ((count = iter.next()) != 0)
michael@0 78 {
michael@0 79 const SkFixed* srcXY = iter.getXY();
michael@0 80
michael@0 81 /* Do I need this?
michael@0 82 #ifndef NOFILTER_BITMAP_SHADER_USE_UNITINVERSE
michael@0 83 fx >>= level;
michael@0 84 fy >>= level;
michael@0 85 #endif
michael@0 86 */
michael@0 87 if (256 == scale)
michael@0 88 {
michael@0 89 while (--count >= 0)
michael@0 90 {
michael@0 91 fx = *srcXY++;
michael@0 92 fy = *srcXY++;
michael@0 93 unsigned x = NOFILTER_BITMAP_SHADER_TILEPROC(fx, srcMaxX);
michael@0 94 unsigned y = NOFILTER_BITMAP_SHADER_TILEPROC(fy, srcMaxY);
michael@0 95 *dstC++ = NOFILTER_BITMAP_SHADER_SAMPLE_XY(srcPixels, x, y, srcRB);
michael@0 96 }
michael@0 97 }
michael@0 98 else
michael@0 99 {
michael@0 100 while (--count >= 0)
michael@0 101 {
michael@0 102 fx = *srcXY++;
michael@0 103 fy = *srcXY++;
michael@0 104 unsigned x = NOFILTER_BITMAP_SHADER_TILEPROC(fx, srcMaxX);
michael@0 105 unsigned y = NOFILTER_BITMAP_SHADER_TILEPROC(fy, srcMaxY);
michael@0 106 uint32_t c = NOFILTER_BITMAP_SHADER_SAMPLE_XY(srcPixels, x, y, srcRB);
michael@0 107 *dstC++ = SkAlphaMulQ(c, scale);
michael@0 108 }
michael@0 109 }
michael@0 110 }
michael@0 111 return;
michael@0 112 }
michael@0 113
michael@0 114 // now init fx, fy, dx, dy
michael@0 115 {
michael@0 116 SkPoint srcPt;
michael@0 117 invProc(inv, SkIntToScalar(x) + SK_ScalarHalf,
michael@0 118 SkIntToScalar(y) + SK_ScalarHalf, &srcPt);
michael@0 119
michael@0 120 fx = SkScalarToFixed(srcPt.fX);
michael@0 121 fy = SkScalarToFixed(srcPt.fY);
michael@0 122
michael@0 123 if (this->getInverseClass() == kFixedStepInX_MatrixClass)
michael@0 124 (void)inv.fixedStepInX(SkIntToScalar(y), &dx, &dy);
michael@0 125 else
michael@0 126 {
michael@0 127 dx = SkScalarToFixed(inv.getScaleX());
michael@0 128 dy = SkScalarToFixed(inv.getSkewY());
michael@0 129 }
michael@0 130 }
michael@0 131
michael@0 132 #ifndef NOFILTER_BITMAP_SHADER_USE_UNITINVERSE
michael@0 133 { int level = this->getMipLevel() >> 16;
michael@0 134 fx >>= level;
michael@0 135 fy >>= level;
michael@0 136 dx >>= level;
michael@0 137 dy >>= level;
michael@0 138 }
michael@0 139 #endif
michael@0 140
michael@0 141 if (dy == 0)
michael@0 142 {
michael@0 143 int y_index = NOFILTER_BITMAP_SHADER_TILEPROC(fy, srcMaxY);
michael@0 144 // SkDEBUGF(("fy = %g, srcMaxY = %d, y_index = %d\n", SkFixedToFloat(fy), srcMaxY, y_index));
michael@0 145 srcPixels = (const NOFILTER_BITMAP_SHADER_TYPE*)((const char*)srcPixels + y_index * srcRB);
michael@0 146 if (scale == 256)
michael@0 147 while (--count >= 0)
michael@0 148 {
michael@0 149 unsigned x = NOFILTER_BITMAP_SHADER_TILEPROC(fx, srcMaxX);
michael@0 150 fx += dx;
michael@0 151 *dstC++ = NOFILTER_BITMAP_SHADER_SAMPLE_X(srcPixels, x);
michael@0 152 }
michael@0 153 else
michael@0 154 while (--count >= 0)
michael@0 155 {
michael@0 156 unsigned x = NOFILTER_BITMAP_SHADER_TILEPROC(fx, srcMaxX);
michael@0 157 SkPMColor c = NOFILTER_BITMAP_SHADER_SAMPLE_X(srcPixels, x);
michael@0 158 fx += dx;
michael@0 159 *dstC++ = SkAlphaMulQ(c, scale);
michael@0 160 }
michael@0 161 }
michael@0 162 else // dy != 0
michael@0 163 {
michael@0 164 if (scale == 256)
michael@0 165 while (--count >= 0)
michael@0 166 {
michael@0 167 unsigned x = NOFILTER_BITMAP_SHADER_TILEPROC(fx, srcMaxX);
michael@0 168 unsigned y = NOFILTER_BITMAP_SHADER_TILEPROC(fy, srcMaxY);
michael@0 169 fx += dx;
michael@0 170 fy += dy;
michael@0 171 *dstC++ = NOFILTER_BITMAP_SHADER_SAMPLE_XY(srcPixels, x, y, srcRB);
michael@0 172 }
michael@0 173 else
michael@0 174 while (--count >= 0)
michael@0 175 {
michael@0 176 unsigned x = NOFILTER_BITMAP_SHADER_TILEPROC(fx, srcMaxX);
michael@0 177 unsigned y = NOFILTER_BITMAP_SHADER_TILEPROC(fy, srcMaxY);
michael@0 178 SkPMColor c = NOFILTER_BITMAP_SHADER_SAMPLE_XY(srcPixels, x, y, srcRB);
michael@0 179 fx += dx;
michael@0 180 fy += dy;
michael@0 181 *dstC++ = SkAlphaMulQ(c, scale);
michael@0 182 }
michael@0 183 }
michael@0 184
michael@0 185 NOFILTER_BITMAP_SHADER_POSTAMBLE(srcBitmap);
michael@0 186 }
michael@0 187
michael@0 188 virtual void shadeSpan16(int x, int y, uint16_t dstC[], int count)
michael@0 189 {
michael@0 190 SkASSERT(count > 0);
michael@0 191 SkASSERT(this->getFlags() & SkShader::kHasSpan16_Flag);
michael@0 192
michael@0 193 #ifdef NOFILTER_BITMAP_SHADER_SPRITEPROC16
michael@0 194 if ((this->getTotalInverse().getType() & ~SkMatrix::kTranslate_Mask) == 0)
michael@0 195 {
michael@0 196 NOFILTER_BITMAP_SHADER_SPRITEPROC16(this, x, y, dstC, count);
michael@0 197 return;
michael@0 198 }
michael@0 199 #endif
michael@0 200
michael@0 201 #ifdef NOFILTER_BITMAP_SHADER_USE_UNITINVERSE
michael@0 202 const SkMatrix& inv = this->getUnitInverse();
michael@0 203 SkMatrix::MapPtProc invProc = this->getUnitInverseProc();
michael@0 204 #else
michael@0 205 const SkMatrix& inv = this->getTotalInverse();
michael@0 206 SkMatrix::MapPtProc invProc = this->getInverseMapPtProc();
michael@0 207 #endif
michael@0 208 const SkBitmap& srcBitmap = this->getSrcBitmap();
michael@0 209 unsigned srcMaxX = srcBitmap.width() - 1;
michael@0 210 unsigned srcMaxY = srcBitmap.height() - 1;
michael@0 211 unsigned srcRB = srcBitmap.rowBytes();
michael@0 212 SkFixed fx, fy, dx, dy;
michael@0 213
michael@0 214 const NOFILTER_BITMAP_SHADER_TYPE* srcPixels = (const NOFILTER_BITMAP_SHADER_TYPE*)srcBitmap.getPixels();
michael@0 215 NOFILTER_BITMAP_SHADER_PREAMBLE16(srcBitmap, srcRB);
michael@0 216
michael@0 217 if (this->getInverseClass() == kPerspective_MatrixClass)
michael@0 218 {
michael@0 219 SkPerspIter iter(inv, SkIntToScalar(x) + SK_ScalarHalf,
michael@0 220 SkIntToScalar(y) + SK_ScalarHalf, count);
michael@0 221 while ((count = iter.next()) != 0)
michael@0 222 {
michael@0 223 const SkFixed* srcXY = iter.getXY();
michael@0 224
michael@0 225 while (--count >= 0)
michael@0 226 {
michael@0 227 fx = *srcXY++;
michael@0 228 fy = *srcXY++;
michael@0 229 unsigned x = NOFILTER_BITMAP_SHADER_TILEPROC(fx, srcMaxX);
michael@0 230 unsigned y = NOFILTER_BITMAP_SHADER_TILEPROC(fy, srcMaxY);
michael@0 231 *dstC++ = NOFILTER_BITMAP_SHADER_SAMPLE_XY16(srcPixels, x, y, srcRB);
michael@0 232 }
michael@0 233 }
michael@0 234 return;
michael@0 235 }
michael@0 236
michael@0 237 // now init fx, fy, dx, dy
michael@0 238 {
michael@0 239 SkPoint srcPt;
michael@0 240 invProc(inv, SkIntToScalar(x) + SK_ScalarHalf,
michael@0 241 SkIntToScalar(y) + SK_ScalarHalf, &srcPt);
michael@0 242
michael@0 243 fx = SkScalarToFixed(srcPt.fX);
michael@0 244 fy = SkScalarToFixed(srcPt.fY);
michael@0 245
michael@0 246 if (this->getInverseClass() == kFixedStepInX_MatrixClass)
michael@0 247 (void)inv.fixedStepInX(SkIntToScalar(y), &dx, &dy);
michael@0 248 else
michael@0 249 {
michael@0 250 dx = SkScalarToFixed(inv.getScaleX());
michael@0 251 dy = SkScalarToFixed(inv.getSkewY());
michael@0 252 }
michael@0 253 }
michael@0 254
michael@0 255 #ifndef NOFILTER_BITMAP_SHADER_USE_UNITINVERSE
michael@0 256 { int level = this->getMipLevel() >> 16;
michael@0 257 fx >>= level;
michael@0 258 fy >>= level;
michael@0 259 dx >>= level;
michael@0 260 dy >>= level;
michael@0 261 }
michael@0 262 #endif
michael@0 263
michael@0 264 if (dy == 0)
michael@0 265 {
michael@0 266 srcPixels = (const NOFILTER_BITMAP_SHADER_TYPE*)((const char*)srcPixels + NOFILTER_BITMAP_SHADER_TILEPROC(fy, srcMaxY) * srcRB);
michael@0 267 do {
michael@0 268 unsigned x = NOFILTER_BITMAP_SHADER_TILEPROC(fx, srcMaxX);
michael@0 269 fx += dx;
michael@0 270 *dstC++ = NOFILTER_BITMAP_SHADER_SAMPLE_X16(srcPixels, x);
michael@0 271 } while (--count != 0);
michael@0 272 }
michael@0 273 else // dy != 0
michael@0 274 {
michael@0 275 do {
michael@0 276 unsigned x = NOFILTER_BITMAP_SHADER_TILEPROC(fx, srcMaxX);
michael@0 277 unsigned y = NOFILTER_BITMAP_SHADER_TILEPROC(fy, srcMaxY);
michael@0 278 fx += dx;
michael@0 279 fy += dy;
michael@0 280 *dstC++ = NOFILTER_BITMAP_SHADER_SAMPLE_XY16(srcPixels, x, y, srcRB);
michael@0 281 } while (--count != 0);
michael@0 282 }
michael@0 283
michael@0 284 NOFILTER_BITMAP_SHADER_POSTAMBLE16(srcBitmap);
michael@0 285 }
michael@0 286 private:
michael@0 287 typedef HasSpan16_Sampler_BitmapShader INHERITED;
michael@0 288 };
michael@0 289
michael@0 290 #undef NOFILTER_BITMAP_SHADER_CLASS
michael@0 291 #undef NOFILTER_BITMAP_SHADER_TYPE
michael@0 292 #undef NOFILTER_BITMAP_SHADER_PREAMBLE
michael@0 293 #undef NOFILTER_BITMAP_SHADER_POSTAMBLE
michael@0 294 #undef NOFILTER_BITMAP_SHADER_SAMPLE_X //(x)
michael@0 295 #undef NOFILTER_BITMAP_SHADER_SAMPLE_XY //(x, y, rowBytes)
michael@0 296 #undef NOFILTER_BITMAP_SHADER_TILEMODE
michael@0 297 #undef NOFILTER_BITMAP_SHADER_TILEPROC
michael@0 298
michael@0 299 #undef NOFILTER_BITMAP_SHADER_PREAMBLE16
michael@0 300 #undef NOFILTER_BITMAP_SHADER_POSTAMBLE16
michael@0 301 #undef NOFILTER_BITMAP_SHADER_SAMPLE_X16 //(x)
michael@0 302 #undef NOFILTER_BITMAP_SHADER_SAMPLE_XY16 //(x, y, rowBytes)
michael@0 303
michael@0 304 #undef NOFILTER_BITMAP_SHADER_USE_UNITINVERSE
michael@0 305 #undef NOFILTER_BITMAP_SHADER_SPRITEPROC16
michael@0 306 #undef NOFILTER_BITMAP_SHADER_SPRITEPROC32

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