| /* |
| * Copyright 2012 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "SkLinearGradient.h" |
| |
| static inline int repeat_bits(int x, const int bits) { |
| return x & ((1 << bits) - 1); |
| } |
| |
| static inline int repeat_8bits(int x) { |
| return x & 0xFF; |
| } |
| |
| // Visual Studio 2010 (MSC_VER=1600) optimizes bit-shift code incorrectly. |
| // See http://code.google.com/p/skia/issues/detail?id=472 |
| #if defined(_MSC_VER) && (_MSC_VER >= 1600) |
| #pragma optimize("", off) |
| #endif |
| |
| static inline int mirror_bits(int x, const int bits) { |
| if (x & (1 << bits)) { |
| x = ~x; |
| } |
| return x & ((1 << bits) - 1); |
| } |
| |
| static inline int mirror_8bits(int x) { |
| if (x & 256) { |
| x = ~x; |
| } |
| return x & 255; |
| } |
| |
| #if defined(_MSC_VER) && (_MSC_VER >= 1600) |
| #pragma optimize("", on) |
| #endif |
| |
| static SkMatrix pts_to_unit_matrix(const SkPoint pts[2]) { |
| SkVector vec = pts[1] - pts[0]; |
| SkScalar mag = vec.length(); |
| SkScalar inv = mag ? SkScalarInvert(mag) : 0; |
| |
| vec.scale(inv); |
| SkMatrix matrix; |
| matrix.setSinCos(-vec.fY, vec.fX, pts[0].fX, pts[0].fY); |
| matrix.postTranslate(-pts[0].fX, -pts[0].fY); |
| matrix.postScale(inv, inv); |
| return matrix; |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| SkLinearGradient::SkLinearGradient(const SkPoint pts[2], const Descriptor& desc) |
| : SkGradientShaderBase(desc, pts_to_unit_matrix(pts)) |
| , fStart(pts[0]) |
| , fEnd(pts[1]) { |
| } |
| |
| SkFlattenable* SkLinearGradient::CreateProc(SkReadBuffer& buffer) { |
| DescriptorScope desc; |
| if (!desc.unflatten(buffer)) { |
| return NULL; |
| } |
| SkPoint pts[2]; |
| pts[0] = buffer.readPoint(); |
| pts[1] = buffer.readPoint(); |
| return SkGradientShader::CreateLinear(pts, desc.fColors, desc.fPos, desc.fCount, |
| desc.fTileMode, desc.fGradFlags, desc.fLocalMatrix); |
| } |
| |
| void SkLinearGradient::flatten(SkWriteBuffer& buffer) const { |
| this->INHERITED::flatten(buffer); |
| buffer.writePoint(fStart); |
| buffer.writePoint(fEnd); |
| } |
| |
| size_t SkLinearGradient::contextSize() const { |
| return sizeof(LinearGradientContext); |
| } |
| |
| SkShader::Context* SkLinearGradient::onCreateContext(const ContextRec& rec, void* storage) const { |
| return SkNEW_PLACEMENT_ARGS(storage, LinearGradientContext, (*this, rec)); |
| } |
| |
| SkLinearGradient::LinearGradientContext::LinearGradientContext( |
| const SkLinearGradient& shader, const ContextRec& rec) |
| : INHERITED(shader, rec) |
| { |
| unsigned mask = SkMatrix::kTranslate_Mask | SkMatrix::kScale_Mask; |
| if ((fDstToIndex.getType() & ~mask) == 0) { |
| // when we dither, we are (usually) not const-in-Y |
| if ((fFlags & SkShader::kHasSpan16_Flag) && !rec.fPaint->isDither()) { |
| // only claim this if we do have a 16bit mode (i.e. none of our |
| // colors have alpha), and if we are not dithering (which obviously |
| // is not const in Y). |
| fFlags |= SkShader::kConstInY16_Flag; |
| } |
| } |
| } |
| |
| #define NO_CHECK_ITER \ |
| do { \ |
| unsigned fi = SkGradFixedToFixed(fx) >> SkGradientShaderBase::kCache32Shift; \ |
| SkASSERT(fi <= 0xFF); \ |
| fx += dx; \ |
| *dstC++ = cache[toggle + fi]; \ |
| toggle = next_dither_toggle(toggle); \ |
| } while (0) |
| |
| namespace { |
| |
| typedef void (*LinearShadeProc)(TileProc proc, SkGradFixed dx, SkGradFixed fx, |
| SkPMColor* dstC, const SkPMColor* cache, |
| int toggle, int count); |
| |
| // Linear interpolation (lerp) is unnecessary if there are no sharp |
| // discontinuities in the gradient - which must be true if there are |
| // only 2 colors - but it's cheap. |
| void shadeSpan_linear_vertical_lerp(TileProc proc, SkGradFixed dx, SkGradFixed fx, |
| SkPMColor* SK_RESTRICT dstC, |
| const SkPMColor* SK_RESTRICT cache, |
| int toggle, int count) { |
| // We're a vertical gradient, so no change in a span. |
| // If colors change sharply across the gradient, dithering is |
| // insufficient (it subsamples the color space) and we need to lerp. |
| unsigned fullIndex = proc(SkGradFixedToFixed(fx)); |
| unsigned fi = fullIndex >> SkGradientShaderBase::kCache32Shift; |
| unsigned remainder = fullIndex & ((1 << SkGradientShaderBase::kCache32Shift) - 1); |
| |
| int index0 = fi + toggle; |
| int index1 = index0; |
| if (fi < SkGradientShaderBase::kCache32Count - 1) { |
| index1 += 1; |
| } |
| SkPMColor lerp = SkFastFourByteInterp(cache[index1], cache[index0], remainder); |
| index0 ^= SkGradientShaderBase::kDitherStride32; |
| index1 ^= SkGradientShaderBase::kDitherStride32; |
| SkPMColor dlerp = SkFastFourByteInterp(cache[index1], cache[index0], remainder); |
| sk_memset32_dither(dstC, lerp, dlerp, count); |
| } |
| |
| void shadeSpan_linear_clamp(TileProc proc, SkGradFixed dx, SkGradFixed fx, |
| SkPMColor* SK_RESTRICT dstC, |
| const SkPMColor* SK_RESTRICT cache, |
| int toggle, int count) { |
| SkClampRange range; |
| range.init(fx, dx, count, 0, SkGradientShaderBase::kCache32Count - 1); |
| range.validate(count); |
| |
| if ((count = range.fCount0) > 0) { |
| sk_memset32_dither(dstC, |
| cache[toggle + range.fV0], |
| cache[next_dither_toggle(toggle) + 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; |
| NO_CHECK_ITER; NO_CHECK_ITER; |
| NO_CHECK_ITER; NO_CHECK_ITER; |
| } |
| 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[next_dither_toggle(toggle) + range.fV1], |
| count); |
| } |
| } |
| |
| void shadeSpan_linear_mirror(TileProc proc, SkGradFixed dx, SkGradFixed fx, |
| SkPMColor* SK_RESTRICT dstC, |
| const SkPMColor* SK_RESTRICT cache, |
| int toggle, int count) { |
| do { |
| unsigned fi = mirror_8bits(SkGradFixedToFixed(fx) >> 8); |
| SkASSERT(fi <= 0xFF); |
| fx += dx; |
| *dstC++ = cache[toggle + fi]; |
| toggle = next_dither_toggle(toggle); |
| } while (--count != 0); |
| } |
| |
| void shadeSpan_linear_repeat(TileProc proc, SkGradFixed dx, SkGradFixed fx, |
| SkPMColor* SK_RESTRICT dstC, |
| const SkPMColor* SK_RESTRICT cache, |
| int toggle, int count) { |
| do { |
| unsigned fi = repeat_8bits(SkGradFixedToFixed(fx) >> 8); |
| SkASSERT(fi <= 0xFF); |
| fx += dx; |
| *dstC++ = cache[toggle + fi]; |
| toggle = next_dither_toggle(toggle); |
| } while (--count != 0); |
| } |
| |
| } |
| |
| void SkLinearGradient::LinearGradientContext::shadeSpan(int x, int y, SkPMColor* SK_RESTRICT dstC, |
| int count) { |
| SkASSERT(count > 0); |
| |
| const SkLinearGradient& linearGradient = static_cast<const SkLinearGradient&>(fShader); |
| |
| SkPoint srcPt; |
| SkMatrix::MapXYProc dstProc = fDstToIndexProc; |
| TileProc proc = linearGradient.fTileProc; |
| const SkPMColor* SK_RESTRICT cache = fCache->getCache32(); |
| int toggle = init_dither_toggle(x, y); |
| |
| if (fDstToIndexClass != kPerspective_MatrixClass) { |
| dstProc(fDstToIndex, SkIntToScalar(x) + SK_ScalarHalf, |
| SkIntToScalar(y) + SK_ScalarHalf, &srcPt); |
| SkGradFixed dx, fx = SkScalarToGradFixed(srcPt.fX); |
| |
| if (fDstToIndexClass == kFixedStepInX_MatrixClass) { |
| SkFixed dxStorage[1]; |
| (void)fDstToIndex.fixedStepInX(SkIntToScalar(y), dxStorage, NULL); |
| // todo: do we need a real/high-precision value for dx here? |
| dx = SkFixedToGradFixed(dxStorage[0]); |
| } else { |
| SkASSERT(fDstToIndexClass == kLinear_MatrixClass); |
| dx = SkScalarToGradFixed(fDstToIndex.getScaleX()); |
| } |
| |
| LinearShadeProc shadeProc = shadeSpan_linear_repeat; |
| if (0 == dx) { |
| shadeProc = shadeSpan_linear_vertical_lerp; |
| } else if (SkShader::kClamp_TileMode == linearGradient.fTileMode) { |
| shadeProc = shadeSpan_linear_clamp; |
| } else if (SkShader::kMirror_TileMode == linearGradient.fTileMode) { |
| shadeProc = shadeSpan_linear_mirror; |
| } else { |
| SkASSERT(SkShader::kRepeat_TileMode == linearGradient.fTileMode); |
| } |
| (*shadeProc)(proc, dx, fx, dstC, cache, toggle, count); |
| } else { |
| SkScalar dstX = SkIntToScalar(x); |
| SkScalar dstY = SkIntToScalar(y); |
| do { |
| dstProc(fDstToIndex, dstX, dstY, &srcPt); |
| unsigned fi = proc(SkScalarToFixed(srcPt.fX)); |
| SkASSERT(fi <= 0xFFFF); |
| *dstC++ = cache[toggle + (fi >> kCache32Shift)]; |
| toggle = next_dither_toggle(toggle); |
| dstX += SK_Scalar1; |
| } while (--count != 0); |
| } |
| } |
| |
| SkShader::BitmapType SkLinearGradient::asABitmap(SkBitmap* bitmap, |
| SkMatrix* matrix, |
| TileMode xy[]) const { |
| if (bitmap) { |
| this->getGradientTableBitmap(bitmap); |
| } |
| if (matrix) { |
| matrix->preConcat(fPtsToUnit); |
| } |
| if (xy) { |
| xy[0] = fTileMode; |
| xy[1] = kClamp_TileMode; |
| } |
| return kLinear_BitmapType; |
| } |
| |
| SkShader::GradientType SkLinearGradient::asAGradient(GradientInfo* info) const { |
| if (info) { |
| commonAsAGradient(info); |
| info->fPoint[0] = fStart; |
| info->fPoint[1] = fEnd; |
| } |
| return kLinear_GradientType; |
| } |
| |
| static void dither_memset16(uint16_t dst[], uint16_t value, uint16_t other, |
| int count) { |
| if (reinterpret_cast<uintptr_t>(dst) & 2) { |
| *dst++ = value; |
| count -= 1; |
| SkTSwap(value, other); |
| } |
| |
| sk_memset32((uint32_t*)dst, (value << 16) | other, count >> 1); |
| |
| if (count & 1) { |
| dst[count - 1] = value; |
| } |
| } |
| |
| #define NO_CHECK_ITER_16 \ |
| do { \ |
| unsigned fi = SkGradFixedToFixed(fx) >> SkGradientShaderBase::kCache16Shift; \ |
| SkASSERT(fi < SkGradientShaderBase::kCache16Count); \ |
| fx += dx; \ |
| *dstC++ = cache[toggle + fi]; \ |
| toggle = next_dither_toggle16(toggle); \ |
| } while (0) |
| |
| namespace { |
| |
| typedef void (*LinearShade16Proc)(TileProc proc, SkGradFixed dx, SkGradFixed fx, |
| uint16_t* dstC, const uint16_t* cache, |
| int toggle, int count); |
| |
| void shadeSpan16_linear_vertical(TileProc proc, SkGradFixed dx, SkGradFixed fx, |
| uint16_t* SK_RESTRICT dstC, |
| const uint16_t* SK_RESTRICT cache, |
| int toggle, int count) { |
| // we're a vertical gradient, so no change in a span |
| unsigned fi = proc(SkGradFixedToFixed(fx)) >> SkGradientShaderBase::kCache16Shift; |
| SkASSERT(fi < SkGradientShaderBase::kCache16Count); |
| dither_memset16(dstC, cache[toggle + fi], |
| cache[next_dither_toggle16(toggle) + fi], count); |
| } |
| |
| void shadeSpan16_linear_clamp(TileProc proc, SkGradFixed dx, SkGradFixed fx, |
| uint16_t* SK_RESTRICT dstC, |
| const uint16_t* SK_RESTRICT cache, |
| int toggle, int count) { |
| SkClampRange range; |
| range.init(fx, dx, count, 0, SkGradientShaderBase::kCache32Count - 1); |
| range.validate(count); |
| |
| if ((count = range.fCount0) > 0) { |
| dither_memset16(dstC, |
| cache[toggle + range.fV0], |
| cache[next_dither_toggle16(toggle) + 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_16; NO_CHECK_ITER_16; |
| NO_CHECK_ITER_16; NO_CHECK_ITER_16; |
| NO_CHECK_ITER_16; NO_CHECK_ITER_16; |
| NO_CHECK_ITER_16; NO_CHECK_ITER_16; |
| } |
| if ((count &= 7) > 0) { |
| do { |
| NO_CHECK_ITER_16; |
| } while (--count != 0); |
| } |
| } |
| if ((count = range.fCount2) > 0) { |
| dither_memset16(dstC, |
| cache[toggle + range.fV1], |
| cache[next_dither_toggle16(toggle) + range.fV1], |
| count); |
| } |
| } |
| |
| void shadeSpan16_linear_mirror(TileProc proc, SkGradFixed dx, SkGradFixed fx, |
| uint16_t* SK_RESTRICT dstC, |
| const uint16_t* SK_RESTRICT cache, |
| int toggle, int count) { |
| do { |
| unsigned fi = mirror_bits(SkGradFixedToFixed(fx) >> SkGradientShaderBase::kCache16Shift, |
| SkGradientShaderBase::kCache16Bits); |
| SkASSERT(fi < SkGradientShaderBase::kCache16Count); |
| fx += dx; |
| *dstC++ = cache[toggle + fi]; |
| toggle = next_dither_toggle16(toggle); |
| } while (--count != 0); |
| } |
| |
| void shadeSpan16_linear_repeat(TileProc proc, SkGradFixed dx, SkGradFixed fx, |
| uint16_t* SK_RESTRICT dstC, |
| const uint16_t* SK_RESTRICT cache, |
| int toggle, int count) { |
| do { |
| unsigned fi = repeat_bits(SkGradFixedToFixed(fx) >> SkGradientShaderBase::kCache16Shift, |
| SkGradientShaderBase::kCache16Bits); |
| SkASSERT(fi < SkGradientShaderBase::kCache16Count); |
| fx += dx; |
| *dstC++ = cache[toggle + fi]; |
| toggle = next_dither_toggle16(toggle); |
| } while (--count != 0); |
| } |
| } |
| |
| static bool fixed_nearly_zero(SkFixed x) { |
| return SkAbs32(x) < (SK_Fixed1 >> 12); |
| } |
| |
| void SkLinearGradient::LinearGradientContext::shadeSpan16(int x, int y, |
| uint16_t* SK_RESTRICT dstC, int count) { |
| SkASSERT(count > 0); |
| |
| const SkLinearGradient& linearGradient = static_cast<const SkLinearGradient&>(fShader); |
| |
| SkPoint srcPt; |
| SkMatrix::MapXYProc dstProc = fDstToIndexProc; |
| TileProc proc = linearGradient.fTileProc; |
| const uint16_t* SK_RESTRICT cache = fCache->getCache16(); |
| int toggle = init_dither_toggle16(x, y); |
| |
| if (fDstToIndexClass != kPerspective_MatrixClass) { |
| dstProc(fDstToIndex, SkIntToScalar(x) + SK_ScalarHalf, |
| SkIntToScalar(y) + SK_ScalarHalf, &srcPt); |
| SkGradFixed dx, fx = SkScalarToGradFixed(srcPt.fX); |
| |
| if (fDstToIndexClass == kFixedStepInX_MatrixClass) { |
| SkFixed dxStorage[1]; |
| (void)fDstToIndex.fixedStepInX(SkIntToScalar(y), dxStorage, NULL); |
| // todo: do we need a real/high-precision value for dx here? |
| dx = SkFixedToGradFixed(dxStorage[0]); |
| } else { |
| SkASSERT(fDstToIndexClass == kLinear_MatrixClass); |
| dx = SkScalarToGradFixed(fDstToIndex.getScaleX()); |
| } |
| |
| LinearShade16Proc shadeProc = shadeSpan16_linear_repeat; |
| if (fixed_nearly_zero(SkGradFixedToFixed(dx))) { |
| shadeProc = shadeSpan16_linear_vertical; |
| } else if (SkShader::kClamp_TileMode == linearGradient.fTileMode) { |
| shadeProc = shadeSpan16_linear_clamp; |
| } else if (SkShader::kMirror_TileMode == linearGradient.fTileMode) { |
| shadeProc = shadeSpan16_linear_mirror; |
| } else { |
| SkASSERT(SkShader::kRepeat_TileMode == linearGradient.fTileMode); |
| } |
| (*shadeProc)(proc, dx, fx, dstC, cache, toggle, count); |
| } else { |
| SkScalar dstX = SkIntToScalar(x); |
| SkScalar dstY = SkIntToScalar(y); |
| do { |
| dstProc(fDstToIndex, dstX, dstY, &srcPt); |
| unsigned fi = proc(SkScalarToFixed(srcPt.fX)); |
| SkASSERT(fi <= 0xFFFF); |
| |
| int index = fi >> kCache16Shift; |
| *dstC++ = cache[toggle + index]; |
| toggle = next_dither_toggle16(toggle); |
| |
| dstX += SK_Scalar1; |
| } while (--count != 0); |
| } |
| } |
| |
| #if SK_SUPPORT_GPU |
| |
| #include "gl/builders/GrGLProgramBuilder.h" |
| #include "SkGr.h" |
| |
| ///////////////////////////////////////////////////////////////////// |
| |
| class GrGLLinearGradient : public GrGLGradientEffect { |
| public: |
| |
| GrGLLinearGradient(const GrProcessor&) {} |
| |
| virtual ~GrGLLinearGradient() { } |
| |
| virtual void emitCode(EmitArgs&) override; |
| |
| static void GenKey(const GrProcessor& processor, const GrGLSLCaps&, GrProcessorKeyBuilder* b) { |
| b->add32(GenBaseGradientKey(processor)); |
| } |
| |
| private: |
| |
| typedef GrGLGradientEffect INHERITED; |
| }; |
| |
| ///////////////////////////////////////////////////////////////////// |
| |
| class GrLinearGradient : public GrGradientEffect { |
| public: |
| |
| static GrFragmentProcessor* Create(GrContext* ctx, |
| GrProcessorDataManager* procDataManager, |
| const SkLinearGradient& shader, |
| const SkMatrix& matrix, |
| SkShader::TileMode tm) { |
| return SkNEW_ARGS(GrLinearGradient, (ctx, procDataManager, shader, matrix, tm)); |
| } |
| |
| virtual ~GrLinearGradient() { } |
| |
| const char* name() const override { return "Linear Gradient"; } |
| |
| private: |
| GrLinearGradient(GrContext* ctx, |
| GrProcessorDataManager* procDataManager, |
| const SkLinearGradient& shader, |
| const SkMatrix& matrix, |
| SkShader::TileMode tm) |
| : INHERITED(ctx, procDataManager, shader, matrix, tm) { |
| this->initClassID<GrLinearGradient>(); |
| } |
| |
| GrGLFragmentProcessor* onCreateGLInstance() const override { |
| return SkNEW_ARGS(GrGLLinearGradient, (*this)); |
| } |
| |
| virtual void onGetGLProcessorKey(const GrGLSLCaps& caps, |
| GrProcessorKeyBuilder* b) const override { |
| GrGLLinearGradient::GenKey(*this, caps, b); |
| } |
| |
| GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
| |
| typedef GrGradientEffect INHERITED; |
| }; |
| |
| ///////////////////////////////////////////////////////////////////// |
| |
| GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrLinearGradient); |
| |
| GrFragmentProcessor* GrLinearGradient::TestCreate(GrProcessorTestData* d) { |
| SkPoint points[] = {{d->fRandom->nextUScalar1(), d->fRandom->nextUScalar1()}, |
| {d->fRandom->nextUScalar1(), d->fRandom->nextUScalar1()}}; |
| |
| SkColor colors[kMaxRandomGradientColors]; |
| SkScalar stopsArray[kMaxRandomGradientColors]; |
| SkScalar* stops = stopsArray; |
| SkShader::TileMode tm; |
| int colorCount = RandomGradientParams(d->fRandom, colors, &stops, &tm); |
| SkAutoTUnref<SkShader> shader(SkGradientShader::CreateLinear(points, |
| colors, stops, colorCount, |
| tm)); |
| SkPaint paint; |
| GrColor paintColor; |
| GrFragmentProcessor* fp; |
| SkAssertResult(shader->asFragmentProcessor(d->fContext, paint, |
| GrTest::TestMatrix(d->fRandom), NULL, |
| &paintColor, d->fProcDataManager, &fp)); |
| return fp; |
| } |
| |
| ///////////////////////////////////////////////////////////////////// |
| |
| void GrGLLinearGradient::emitCode(EmitArgs& args) { |
| const GrLinearGradient& ge = args.fFp.cast<GrLinearGradient>(); |
| this->emitUniforms(args.fBuilder, ge); |
| SkString t = args.fBuilder->getFragmentShaderBuilder()->ensureFSCoords2D(args.fCoords, 0); |
| t.append(".x"); |
| this->emitColor(args.fBuilder, ge, t.c_str(), args.fOutputColor, args.fInputColor, |
| args.fSamplers); |
| } |
| |
| ///////////////////////////////////////////////////////////////////// |
| |
| bool SkLinearGradient::asFragmentProcessor(GrContext* context, const SkPaint& paint, |
| const SkMatrix& viewm, const SkMatrix* localMatrix, |
| GrColor* paintColor, |
| GrProcessorDataManager* procDataManager, |
| GrFragmentProcessor** fp) const { |
| SkASSERT(context); |
| |
| SkMatrix matrix; |
| if (!this->getLocalMatrix().invert(&matrix)) { |
| return false; |
| } |
| if (localMatrix) { |
| SkMatrix inv; |
| if (!localMatrix->invert(&inv)) { |
| return false; |
| } |
| matrix.postConcat(inv); |
| } |
| matrix.postConcat(fPtsToUnit); |
| |
| *paintColor = SkColor2GrColorJustAlpha(paint.getColor()); |
| *fp = GrLinearGradient::Create(context, procDataManager, *this, matrix, fTileMode); |
| |
| return true; |
| } |
| |
| #else |
| |
| bool SkLinearGradient::asFragmentProcessor(GrContext*, const SkPaint&, const SkMatrix&, |
| const SkMatrix*, GrColor*, GrProcessorDataManager*, |
| GrFragmentProcessor**) const { |
| SkDEBUGFAIL("Should not call in GPU-less build"); |
| return false; |
| } |
| |
| #endif |
| |
| #ifndef SK_IGNORE_TO_STRING |
| void SkLinearGradient::toString(SkString* str) const { |
| str->append("SkLinearGradient ("); |
| |
| str->appendf("start: (%f, %f)", fStart.fX, fStart.fY); |
| str->appendf(" end: (%f, %f) ", fEnd.fX, fEnd.fY); |
| |
| this->INHERITED::toString(str); |
| |
| str->append(")"); |
| } |
| #endif |