From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001 From: "Matt A. Tobin" Date: Fri, 2 Feb 2018 04:16:08 -0500 Subject: Add m-esr52 at 52.6.0 --- gfx/skia/patches/archive/fix-gradient-clamp.patch | 211 ++++++++++++++++++++++ 1 file changed, 211 insertions(+) create mode 100644 gfx/skia/patches/archive/fix-gradient-clamp.patch (limited to 'gfx/skia/patches/archive/fix-gradient-clamp.patch') diff --git a/gfx/skia/patches/archive/fix-gradient-clamp.patch b/gfx/skia/patches/archive/fix-gradient-clamp.patch new file mode 100644 index 000000000..91481c2c1 --- /dev/null +++ b/gfx/skia/patches/archive/fix-gradient-clamp.patch @@ -0,0 +1,211 @@ +diff --git a/gfx/skia/src/effects/SkGradientShader.cpp b/gfx/skia/src/effects/SkGradientShader.cpp +--- a/gfx/skia/src/effects/SkGradientShader.cpp ++++ b/gfx/skia/src/effects/SkGradientShader.cpp +@@ -167,16 +167,17 @@ private: + + mutable uint16_t* fCache16; // working ptr. If this is NULL, we need to recompute the cache values + mutable SkPMColor* fCache32; // working ptr. If this is NULL, we need to recompute the cache values + + mutable uint16_t* fCache16Storage; // storage for fCache16, allocated on demand + mutable SkMallocPixelRef* fCache32PixelRef; + mutable unsigned fCacheAlpha; // the alpha value we used when we computed the cache. larger than 8bits so we can store uninitialized value + ++ static SkPMColor PremultiplyColor(SkColor c0, U8CPU alpha); + static void Build16bitCache(uint16_t[], SkColor c0, SkColor c1, int count); + static void Build32bitCache(SkPMColor[], SkColor c0, SkColor c1, int count, + U8CPU alpha); + void setCacheAlpha(U8CPU alpha) const; + void initCommon(); + + typedef SkShader INHERITED; + }; +@@ -512,16 +513,31 @@ static inline U8CPU dither_fixed_to_8(Sk + * For dithering with premultiply, we want to ceiling the alpha component, + * to ensure that it is always >= any color component. + */ + static inline U8CPU dither_ceil_fixed_to_8(SkFixed n) { + n >>= 8; + return ((n << 1) - (n | (n >> 8))) >> 8; + } + ++SkPMColor Gradient_Shader::PremultiplyColor(SkColor c0, U8CPU paintAlpha) ++{ ++ SkFixed a = SkMulDiv255Round(SkColorGetA(c0), paintAlpha); ++ SkFixed r = SkColorGetR(c0); ++ SkFixed g = SkColorGetG(c0); ++ SkFixed b = SkColorGetB(c0); ++ ++ a = SkIntToFixed(a) + 0x8000; ++ r = SkIntToFixed(r) + 0x8000; ++ g = SkIntToFixed(g) + 0x8000; ++ b = SkIntToFixed(b) + 0x8000; ++ ++ return SkPremultiplyARGBInline(a >> 16, r >> 16, g >> 16, b >> 16); ++} ++ + void Gradient_Shader::Build32bitCache(SkPMColor cache[], SkColor c0, SkColor c1, + int count, U8CPU paintAlpha) { + SkASSERT(count > 1); + + // need to apply paintAlpha to our two endpoints + SkFixed a = SkMulDiv255Round(SkColorGetA(c0), paintAlpha); + SkFixed da; + { +@@ -613,24 +629,24 @@ const uint16_t* Gradient_Shader::getCach + } + } + return fCache16; + } + + const SkPMColor* Gradient_Shader::getCache32() const { + if (fCache32 == NULL) { + // double the count for dither entries +- const int entryCount = kCache32Count * 2; ++ const int entryCount = kCache32Count * 2 + 2; + const size_t allocSize = sizeof(SkPMColor) * entryCount; + + if (NULL == fCache32PixelRef) { + fCache32PixelRef = SkNEW_ARGS(SkMallocPixelRef, + (NULL, allocSize, NULL)); + } +- fCache32 = (SkPMColor*)fCache32PixelRef->getAddr(); ++ fCache32 = (SkPMColor*)fCache32PixelRef->getAddr() + 1; + if (fColorCount == 2) { + Build32bitCache(fCache32, fOrigColors[0], fOrigColors[1], + kCache32Count, fCacheAlpha); + } else { + Rec* rec = fRecs; + int prevIndex = 0; + for (int i = 1; i < fColorCount; i++) { + int nextIndex = SkFixedToFFFF(rec[i].fPos) >> (16 - kCache32Bits); +@@ -644,28 +660,31 @@ const SkPMColor* Gradient_Shader::getCac + } + SkASSERT(prevIndex == kCache32Count - 1); + } + + if (fMapper) { + SkMallocPixelRef* newPR = SkNEW_ARGS(SkMallocPixelRef, + (NULL, allocSize, NULL)); + SkPMColor* linear = fCache32; // just computed linear data +- SkPMColor* mapped = (SkPMColor*)newPR->getAddr(); // storage for mapped data ++ SkPMColor* mapped = (SkPMColor*)newPR->getAddr() + 1; // storage for mapped data + SkUnitMapper* map = fMapper; + for (int i = 0; i < kCache32Count; i++) { + int index = map->mapUnit16((i << 8) | i) >> 8; + mapped[i] = linear[index]; + mapped[i + kCache32Count] = linear[index + kCache32Count]; + } + fCache32PixelRef->unref(); + fCache32PixelRef = newPR; +- fCache32 = (SkPMColor*)newPR->getAddr(); ++ fCache32 = (SkPMColor*)newPR->getAddr() + 1; + } + } ++ //Write the clamp colours into the first and last entries of fCache32 ++ fCache32[-1] = PremultiplyColor(fOrigColors[0], fCacheAlpha); ++ fCache32[kCache32Count * 2] = PremultiplyColor(fOrigColors[fColorCount - 1], fCacheAlpha); + return fCache32; + } + + /* + * Because our caller might rebuild the same (logically the same) gradient + * over and over, we'd like to return exactly the same "bitmap" if possible, + * allowing the client to utilize a cache of our bitmap (e.g. with a GPU). + * To do that, we maintain a private cache of built-bitmaps, based on our +@@ -875,28 +894,38 @@ void Linear_Gradient::shadeSpan(int x, i + dx = dxStorage[0]; + } else { + SkASSERT(fDstToIndexClass == kLinear_MatrixClass); + dx = SkScalarToFixed(fDstToIndex.getScaleX()); + } + + if (SkFixedNearlyZero(dx)) { + // we're a vertical gradient, so no change in a span +- unsigned fi = proc(fx) >> (16 - kCache32Bits); +- sk_memset32_dither(dstC, cache[toggle + fi], +- cache[(toggle ^ TOGGLE_MASK) + fi], count); ++ if (proc == clamp_tileproc) { ++ if (fx < 0) { ++ sk_memset32(dstC, cache[-1], count); ++ } else if (fx > 0xFFFF) { ++ sk_memset32(dstC, cache[kCache32Count * 2], count); ++ } else { ++ unsigned fi = proc(fx) >> (16 - kCache32Bits); ++ sk_memset32_dither(dstC, cache[toggle + fi], ++ cache[(toggle ^ TOGGLE_MASK) + fi], count); ++ } ++ } else { ++ unsigned fi = proc(fx) >> (16 - kCache32Bits); ++ sk_memset32_dither(dstC, cache[toggle + fi], ++ cache[(toggle ^ TOGGLE_MASK) + fi], count); ++ } + } else if (proc == clamp_tileproc) { + SkClampRange range; +- range.init(fx, dx, count, 0, 0xFF); ++ range.init(fx, dx, count, cache[-1], cache[kCache32Count * 2]); + + if ((count = range.fCount0) > 0) { +- sk_memset32_dither(dstC, +- cache[toggle + range.fV0], +- cache[(toggle ^ TOGGLE_MASK) + range.fV0], +- count); ++ // Do we really want to dither the clamp values? ++ sk_memset32(dstC, range.fV0, count); + dstC += count; + } + if ((count = range.fCount1) > 0) { + int unroll = count >> 3; + fx = range.fFx1; + for (int i = 0; i < unroll; i++) { + NO_CHECK_ITER; NO_CHECK_ITER; + NO_CHECK_ITER; NO_CHECK_ITER; +@@ -905,20 +934,17 @@ void Linear_Gradient::shadeSpan(int x, i + } + if ((count &= 7) > 0) { + do { + NO_CHECK_ITER; + } while (--count != 0); + } + } + if ((count = range.fCount2) > 0) { +- sk_memset32_dither(dstC, +- cache[toggle + range.fV1], +- cache[(toggle ^ TOGGLE_MASK) + range.fV1], +- count); ++ sk_memset32(dstC, range.fV1, count); + } + } else if (proc == mirror_tileproc) { + do { + unsigned fi = mirror_8bits(fx >> 8); + SkASSERT(fi <= 0xFF); + fx += dx; + *dstC++ = cache[toggle + fi]; + toggle ^= TOGGLE_MASK; +@@ -1670,19 +1699,24 @@ public: + } + SkScalar b = (SkScalarMul(fDiff.fX, fx) + + SkScalarMul(fDiff.fY, fy) - fStartRadius) * 2; + SkScalar db = (SkScalarMul(fDiff.fX, dx) + + SkScalarMul(fDiff.fY, dy)) * 2; + if (proc == clamp_tileproc) { + for (; count > 0; --count) { + SkFixed t = two_point_radial(b, fx, fy, fSr2D2, foura, fOneOverTwoA, posRoot); +- SkFixed index = SkClampMax(t, 0xFFFF); +- SkASSERT(index <= 0xFFFF); +- *dstC++ = cache[index >> (16 - kCache32Bits)]; ++ if (t < 0) { ++ *dstC++ = cache[-1]; ++ } else if (t > 0xFFFF) { ++ *dstC++ = cache[kCache32Count * 2]; ++ } else { ++ SkASSERT(t <= 0xFFFF); ++ *dstC++ = cache[t >> (16 - kCache32Bits)]; ++ } + fx += dx; + fy += dy; + b += db; + } + } else if (proc == mirror_tileproc) { + for (; count > 0; --count) { + SkFixed t = two_point_radial(b, fx, fy, fSr2D2, foura, fOneOverTwoA, posRoot); + SkFixed index = mirror_tileproc(t); -- cgit v1.2.3