| /* |
| * Copyright 2015 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "src/core/SkArenaAlloc.h" |
| #include "src/core/SkBitmapController.h" |
| #include "src/core/SkColorSpacePriv.h" |
| #include "src/core/SkColorSpaceXformSteps.h" |
| #include "src/core/SkRasterPipeline.h" |
| #include "src/core/SkReadBuffer.h" |
| #include "src/core/SkWriteBuffer.h" |
| #include "src/image/SkImage_Base.h" |
| #include "src/shaders/SkBitmapProcShader.h" |
| #include "src/shaders/SkEmptyShader.h" |
| #include "src/shaders/SkImageShader.h" |
| |
| /** |
| * We are faster in clamp, so always use that tiling when we can. |
| */ |
| static SkTileMode optimize(SkTileMode tm, int dimension) { |
| SkASSERT(dimension > 0); |
| #ifdef SK_BUILD_FOR_ANDROID_FRAMEWORK |
| // need to update frameworks/base/libs/hwui/tests/unit/SkiaBehaviorTests.cpp:55 to allow |
| // for transforming to clamp. |
| return tm; |
| #else |
| return dimension == 1 ? SkTileMode::kClamp : tm; |
| #endif |
| } |
| |
| SkImageShader::SkImageShader(sk_sp<SkImage> img, |
| SkTileMode tmx, SkTileMode tmy, |
| const SkMatrix* localMatrix, |
| bool clampAsIfUnpremul) |
| : INHERITED(localMatrix) |
| , fImage(std::move(img)) |
| , fTileModeX(optimize(tmx, fImage->width())) |
| , fTileModeY(optimize(tmy, fImage->height())) |
| , fClampAsIfUnpremul(clampAsIfUnpremul) |
| {} |
| |
| // fClampAsIfUnpremul is always false when constructed through public APIs, |
| // so there's no need to read or write it here. |
| |
| sk_sp<SkFlattenable> SkImageShader::CreateProc(SkReadBuffer& buffer) { |
| auto tmx = buffer.read32LE<SkTileMode>(SkTileMode::kLastTileMode); |
| auto tmy = buffer.read32LE<SkTileMode>(SkTileMode::kLastTileMode); |
| SkMatrix localMatrix; |
| buffer.readMatrix(&localMatrix); |
| sk_sp<SkImage> img = buffer.readImage(); |
| if (!img) { |
| return nullptr; |
| } |
| return SkImageShader::Make(std::move(img), tmx, tmy, &localMatrix); |
| } |
| |
| void SkImageShader::flatten(SkWriteBuffer& buffer) const { |
| buffer.writeUInt((unsigned)fTileModeX); |
| buffer.writeUInt((unsigned)fTileModeY); |
| buffer.writeMatrix(this->getLocalMatrix()); |
| buffer.writeImage(fImage.get()); |
| SkASSERT(fClampAsIfUnpremul == false); |
| } |
| |
| bool SkImageShader::isOpaque() const { |
| return fImage->isOpaque() && |
| fTileModeX != SkTileMode::kDecal && fTileModeY != SkTileMode::kDecal; |
| } |
| |
| #ifdef SK_ENABLE_LEGACY_SHADERCONTEXT |
| static bool legacy_shader_can_handle(const SkMatrix& inv) { |
| if (!inv.isScaleTranslate()) { |
| return false; |
| } |
| |
| // legacy code uses SkFixed 32.32, so ensure the inverse doesn't map device coordinates |
| // out of range. |
| const SkScalar max_dev_coord = 32767.0f; |
| SkRect src; |
| SkAssertResult(inv.mapRect(&src, SkRect::MakeWH(max_dev_coord, max_dev_coord))); |
| |
| // take 1/4 of max signed 32bits so we have room to subtract local values |
| const SkScalar max_fixed32dot32 = SK_MaxS32 * 0.25f; |
| if (!SkRect::MakeLTRB(-max_fixed32dot32, -max_fixed32dot32, |
| max_fixed32dot32, max_fixed32dot32).contains(src)) { |
| return false; |
| } |
| |
| // legacy shader impl should be able to handle these matrices |
| return true; |
| } |
| |
| SkShaderBase::Context* SkImageShader::onMakeContext(const ContextRec& rec, |
| SkArenaAlloc* alloc) const { |
| if (fImage->alphaType() == kUnpremul_SkAlphaType) { |
| return nullptr; |
| } |
| if (fImage->colorType() != kN32_SkColorType) { |
| return nullptr; |
| } |
| if (fTileModeX != fTileModeY) { |
| return nullptr; |
| } |
| if (fTileModeX == SkTileMode::kDecal || fTileModeY == SkTileMode::kDecal) { |
| return nullptr; |
| } |
| |
| // SkBitmapProcShader stores bitmap coordinates in a 16bit buffer, |
| // so it can't handle bitmaps larger than 65535. |
| // |
| // We back off another bit to 32767 to make small amounts of |
| // intermediate math safe, e.g. in |
| // |
| // SkFixed fx = ...; |
| // fx = tile(fx + SK_Fixed1); |
| // |
| // we want to make sure (fx + SK_Fixed1) never overflows. |
| if (fImage-> width() > 32767 || |
| fImage->height() > 32767) { |
| return nullptr; |
| } |
| |
| SkMatrix inv; |
| if (!this->computeTotalInverse(*rec.fMatrix, rec.fLocalMatrix, &inv) || |
| !legacy_shader_can_handle(inv)) { |
| return nullptr; |
| } |
| |
| if (!rec.isLegacyCompatible(fImage->colorSpace())) { |
| return nullptr; |
| } |
| |
| return SkBitmapProcLegacyShader::MakeContext(*this, fTileModeX, fTileModeY, |
| as_IB(fImage.get()), rec, alloc); |
| } |
| #endif |
| |
| SkImage* SkImageShader::onIsAImage(SkMatrix* texM, SkTileMode xy[]) const { |
| if (texM) { |
| *texM = this->getLocalMatrix(); |
| } |
| if (xy) { |
| xy[0] = fTileModeX; |
| xy[1] = fTileModeY; |
| } |
| return const_cast<SkImage*>(fImage.get()); |
| } |
| |
| sk_sp<SkShader> SkImageShader::Make(sk_sp<SkImage> image, |
| SkTileMode tmx, SkTileMode tmy, |
| const SkMatrix* localMatrix, |
| bool clampAsIfUnpremul) { |
| if (!image) { |
| return sk_make_sp<SkEmptyShader>(); |
| } |
| return sk_sp<SkShader>{ new SkImageShader(image, tmx, tmy, localMatrix, clampAsIfUnpremul) }; |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| #if SK_SUPPORT_GPU |
| |
| #include "include/private/GrRecordingContext.h" |
| #include "src/gpu/GrCaps.h" |
| #include "src/gpu/GrColorInfo.h" |
| #include "src/gpu/GrRecordingContextPriv.h" |
| #include "src/gpu/SkGr.h" |
| #include "src/gpu/effects/GrBicubicEffect.h" |
| #include "src/gpu/effects/generated/GrSimpleTextureEffect.h" |
| |
| static GrSamplerState::WrapMode tile_mode_to_wrap_mode(const SkTileMode tileMode) { |
| switch (tileMode) { |
| case SkTileMode::kClamp: |
| return GrSamplerState::WrapMode::kClamp; |
| case SkTileMode::kRepeat: |
| return GrSamplerState::WrapMode::kRepeat; |
| case SkTileMode::kMirror: |
| return GrSamplerState::WrapMode::kMirrorRepeat; |
| case SkTileMode::kDecal: |
| return GrSamplerState::WrapMode::kClampToBorder; |
| } |
| SK_ABORT("Unknown tile mode."); |
| } |
| |
| std::unique_ptr<GrFragmentProcessor> SkImageShader::asFragmentProcessor( |
| const GrFPArgs& args) const { |
| const auto lm = this->totalLocalMatrix(args.fPreLocalMatrix, args.fPostLocalMatrix); |
| SkMatrix lmInverse; |
| if (!lm->invert(&lmInverse)) { |
| return nullptr; |
| } |
| |
| GrSamplerState::WrapMode wrapModes[] = {tile_mode_to_wrap_mode(fTileModeX), |
| tile_mode_to_wrap_mode(fTileModeY)}; |
| |
| // If either domainX or domainY are un-ignored, a texture domain effect has to be used to |
| // implement the decal mode (while leaving non-decal axes alone). The wrap mode originally |
| // clamp-to-border is reset to clamp since the hw cannot implement it directly. |
| GrTextureDomain::Mode domainX = GrTextureDomain::kIgnore_Mode; |
| GrTextureDomain::Mode domainY = GrTextureDomain::kIgnore_Mode; |
| if (!args.fContext->priv().caps()->clampToBorderSupport()) { |
| if (wrapModes[0] == GrSamplerState::WrapMode::kClampToBorder) { |
| domainX = GrTextureDomain::kDecal_Mode; |
| wrapModes[0] = GrSamplerState::WrapMode::kClamp; |
| } |
| if (wrapModes[1] == GrSamplerState::WrapMode::kClampToBorder) { |
| domainY = GrTextureDomain::kDecal_Mode; |
| wrapModes[1] = GrSamplerState::WrapMode::kClamp; |
| } |
| } |
| |
| // Must set wrap and filter on the sampler before requesting a texture. In two places below |
| // we check the matrix scale factors to determine how to interpret the filter quality setting. |
| // This completely ignores the complexity of the drawVertices case where explicit local coords |
| // are provided by the caller. |
| bool doBicubic; |
| GrSamplerState::Filter textureFilterMode = GrSkFilterQualityToGrFilterMode( |
| fImage->width(), fImage->height(), args.fFilterQuality, *args.fViewMatrix, *lm, |
| args.fContext->priv().options().fSharpenMipmappedTextures, &doBicubic); |
| GrSamplerState samplerState(wrapModes, textureFilterMode); |
| SkScalar scaleAdjust[2] = { 1.0f, 1.0f }; |
| sk_sp<GrTextureProxy> proxy(as_IB(fImage)->asTextureProxyRef(args.fContext, samplerState, |
| scaleAdjust)); |
| if (!proxy) { |
| return nullptr; |
| } |
| |
| bool isAlphaOnly = SkColorTypeIsAlphaOnly(fImage->colorType()); |
| |
| lmInverse.postScale(scaleAdjust[0], scaleAdjust[1]); |
| |
| std::unique_ptr<GrFragmentProcessor> inner; |
| if (doBicubic) { |
| // domainX and domainY will properly apply the decal effect with the texture domain used in |
| // the bicubic filter if clamp to border was unsupported in hardware |
| static constexpr auto kDir = GrBicubicEffect::Direction::kXY; |
| inner = GrBicubicEffect::Make(std::move(proxy), lmInverse, wrapModes, domainX, domainY, |
| kDir, fImage->alphaType()); |
| } else { |
| if (domainX != GrTextureDomain::kIgnore_Mode || domainY != GrTextureDomain::kIgnore_Mode) { |
| SkRect domain = GrTextureDomain::MakeTexelDomain( |
| SkIRect::MakeWH(proxy->width(), proxy->height()), |
| domainX, domainY); |
| inner = GrTextureDomainEffect::Make(std::move(proxy), lmInverse, domain, |
| domainX, domainY, samplerState); |
| } else { |
| inner = GrSimpleTextureEffect::Make(std::move(proxy), lmInverse, samplerState); |
| } |
| } |
| inner = GrColorSpaceXformEffect::Make(std::move(inner), fImage->colorSpace(), |
| fImage->alphaType(), args.fDstColorInfo->colorSpace()); |
| if (isAlphaOnly) { |
| return inner; |
| } else if (args.fInputColorIsOpaque) { |
| return GrFragmentProcessor::OverrideInput(std::move(inner), SK_PMColor4fWHITE, false); |
| } |
| return GrFragmentProcessor::MulChildByInputAlpha(std::move(inner)); |
| } |
| |
| #endif |
| |
| /////////////////////////////////////////////////////////////////////////////////////////////////// |
| #include "src/core/SkImagePriv.h" |
| |
| sk_sp<SkShader> SkMakeBitmapShader(const SkBitmap& src, SkTileMode tmx, SkTileMode tmy, |
| const SkMatrix* localMatrix, SkCopyPixelsMode cpm) { |
| return SkImageShader::Make(SkMakeImageFromRasterBitmap(src, cpm), |
| tmx, tmy, localMatrix); |
| } |
| |
| sk_sp<SkShader> SkMakeBitmapShaderForPaint(const SkPaint& paint, const SkBitmap& src, |
| SkTileMode tmx, SkTileMode tmy, |
| const SkMatrix* localMatrix, SkCopyPixelsMode mode) { |
| auto s = SkMakeBitmapShader(src, tmx, tmy, localMatrix, mode); |
| if (!s) { |
| return nullptr; |
| } |
| if (src.colorType() == kAlpha_8_SkColorType && paint.getShader()) { |
| // Compose the image shader with the paint's shader. Alpha images+shaders should output the |
| // texture's alpha multiplied by the shader's color. DstIn (d*sa) will achieve this with |
| // the source image and dst shader (MakeBlend takes dst first, src second). |
| s = SkShaders::Blend(SkBlendMode::kDstIn, paint.refShader(), std::move(s)); |
| } |
| return s; |
| } |
| |
| void SkShaderBase::RegisterFlattenables() { SK_REGISTER_FLATTENABLE(SkImageShader); } |
| |
| class SkImageStageUpdater : public SkStageUpdater { |
| public: |
| const SkImageShader* fShader; |
| |
| float fMatrixStorage[6]; |
| |
| #if 0 // TODO: when we support mipmaps |
| SkRasterPipeline_GatherCtx* fGather; |
| SkRasterPipeline_TileCtx* fLimitX; |
| SkRasterPipeline_TileCtx* fLimitY; |
| SkRasterPipeline_DecalTileCtx* fDecal; |
| #endif |
| |
| bool update(const SkMatrix& ctm, const SkMatrix* localM) override { |
| SkMatrix matrix; |
| return fShader->computeTotalInverse(ctm, localM, &matrix) && |
| matrix.asAffine(fMatrixStorage); |
| } |
| }; |
| |
| bool SkImageShader::doStages(const SkStageRec& rec, SkImageStageUpdater* updater) const { |
| if (updater && |
| (rec.fPaint.getFilterQuality() == kMedium_SkFilterQuality || |
| rec.fCTM.hasPerspective())) |
| { |
| // TODO: handle these cases |
| // medium: recall RequestBitmap and update width/height accordingly |
| // perspt: store 9 floats and use persp stage |
| return false; |
| } |
| |
| SkRasterPipeline* p = rec.fPipeline; |
| SkArenaAlloc* alloc = rec.fAlloc; |
| auto quality = rec.fPaint.getFilterQuality(); |
| |
| SkMatrix matrix; |
| if (!this->computeTotalInverse(rec.fCTM, rec.fLocalM, &matrix)) { |
| return false; |
| } |
| |
| const auto* state = SkBitmapController::RequestBitmap(as_IB(fImage.get()), |
| matrix, quality, alloc); |
| if (!state) { |
| return false; |
| } |
| |
| const SkPixmap& pm = state->pixmap(); |
| matrix = state->invMatrix(); |
| quality = state->quality(); |
| auto info = pm.info(); |
| |
| p->append(SkRasterPipeline::seed_shader); |
| |
| if (updater) { |
| p->append(SkRasterPipeline::matrix_2x3, updater->fMatrixStorage); |
| } else { |
| // When the matrix is just an integer translate, bilerp == nearest neighbor. |
| if (quality == kLow_SkFilterQuality && |
| matrix.getType() <= SkMatrix::kTranslate_Mask && |
| matrix.getTranslateX() == (int)matrix.getTranslateX() && |
| matrix.getTranslateY() == (int)matrix.getTranslateY()) { |
| quality = kNone_SkFilterQuality; |
| } |
| |
| // See skia:4649 and the GM image_scale_aligned. |
| if (quality == kNone_SkFilterQuality) { |
| if (matrix.getScaleX() >= 0) { |
| matrix.setTranslateX(nextafterf(matrix.getTranslateX(), |
| floorf(matrix.getTranslateX()))); |
| } |
| if (matrix.getScaleY() >= 0) { |
| matrix.setTranslateY(nextafterf(matrix.getTranslateY(), |
| floorf(matrix.getTranslateY()))); |
| } |
| } |
| p->append_matrix(alloc, matrix); |
| } |
| |
| auto gather = alloc->make<SkRasterPipeline_GatherCtx>(); |
| gather->pixels = pm.addr(); |
| gather->stride = pm.rowBytesAsPixels(); |
| gather->width = pm.width(); |
| gather->height = pm.height(); |
| |
| auto limit_x = alloc->make<SkRasterPipeline_TileCtx>(), |
| limit_y = alloc->make<SkRasterPipeline_TileCtx>(); |
| limit_x->scale = pm.width(); |
| limit_x->invScale = 1.0f / pm.width(); |
| limit_y->scale = pm.height(); |
| limit_y->invScale = 1.0f / pm.height(); |
| |
| SkRasterPipeline_DecalTileCtx* decal_ctx = nullptr; |
| bool decal_x_and_y = fTileModeX == SkTileMode::kDecal && fTileModeY == SkTileMode::kDecal; |
| if (fTileModeX == SkTileMode::kDecal || fTileModeY == SkTileMode::kDecal) { |
| decal_ctx = alloc->make<SkRasterPipeline_DecalTileCtx>(); |
| decal_ctx->limit_x = limit_x->scale; |
| decal_ctx->limit_y = limit_y->scale; |
| } |
| |
| #if 0 // TODO: when we support kMedium |
| if (updator && (quality == kMedium_SkFilterQuality)) { |
| // if we change levels in mipmap, we need to update the scales (and invScales) |
| updator->fGather = gather; |
| updator->fLimitX = limit_x; |
| updator->fLimitY = limit_y; |
| updator->fDecal = decal_ctx; |
| } |
| #endif |
| |
| auto append_tiling_and_gather = [&] { |
| if (decal_x_and_y) { |
| p->append(SkRasterPipeline::decal_x_and_y, decal_ctx); |
| } else { |
| switch (fTileModeX) { |
| case SkTileMode::kClamp: /* The gather_xxx stage will clamp for us. */ break; |
| case SkTileMode::kMirror: p->append(SkRasterPipeline::mirror_x, limit_x); break; |
| case SkTileMode::kRepeat: p->append(SkRasterPipeline::repeat_x, limit_x); break; |
| case SkTileMode::kDecal: p->append(SkRasterPipeline::decal_x, decal_ctx); break; |
| } |
| switch (fTileModeY) { |
| case SkTileMode::kClamp: /* The gather_xxx stage will clamp for us. */ break; |
| case SkTileMode::kMirror: p->append(SkRasterPipeline::mirror_y, limit_y); break; |
| case SkTileMode::kRepeat: p->append(SkRasterPipeline::repeat_y, limit_y); break; |
| case SkTileMode::kDecal: p->append(SkRasterPipeline::decal_y, decal_ctx); break; |
| } |
| } |
| |
| void* ctx = gather; |
| switch (info.colorType()) { |
| case kAlpha_8_SkColorType: p->append(SkRasterPipeline::gather_a8, ctx); break; |
| case kA16_unorm_SkColorType: p->append(SkRasterPipeline::gather_a16, ctx); break; |
| case kA16_float_SkColorType: p->append(SkRasterPipeline::gather_af16, ctx); break; |
| case kRGB_565_SkColorType: p->append(SkRasterPipeline::gather_565, ctx); break; |
| case kARGB_4444_SkColorType: p->append(SkRasterPipeline::gather_4444, ctx); break; |
| case kR8G8_unorm_SkColorType: p->append(SkRasterPipeline::gather_rg88, ctx); break; |
| case kR16G16_unorm_SkColorType: p->append(SkRasterPipeline::gather_rg1616, ctx); break; |
| case kR16G16_float_SkColorType: p->append(SkRasterPipeline::gather_rgf16, ctx); break; |
| case kRGBA_8888_SkColorType: p->append(SkRasterPipeline::gather_8888, ctx); break; |
| case kRGBA_1010102_SkColorType: p->append(SkRasterPipeline::gather_1010102, ctx); break; |
| case kR16G16B16A16_unorm_SkColorType: |
| p->append(SkRasterPipeline::gather_16161616,ctx); break; |
| case kRGBA_F16Norm_SkColorType: |
| case kRGBA_F16_SkColorType: p->append(SkRasterPipeline::gather_f16, ctx); break; |
| case kRGBA_F32_SkColorType: p->append(SkRasterPipeline::gather_f32, ctx); break; |
| |
| case kGray_8_SkColorType: p->append(SkRasterPipeline::gather_a8, ctx); |
| p->append(SkRasterPipeline::alpha_to_gray ); break; |
| |
| case kRGB_888x_SkColorType: p->append(SkRasterPipeline::gather_8888, ctx); |
| p->append(SkRasterPipeline::force_opaque ); break; |
| |
| case kRGB_101010x_SkColorType: p->append(SkRasterPipeline::gather_1010102, ctx); |
| p->append(SkRasterPipeline::force_opaque ); break; |
| |
| case kBGRA_8888_SkColorType: p->append(SkRasterPipeline::gather_8888, ctx); |
| p->append(SkRasterPipeline::swap_rb ); break; |
| |
| case kUnknown_SkColorType: SkASSERT(false); |
| } |
| if (decal_ctx) { |
| p->append(SkRasterPipeline::check_decal_mask, decal_ctx); |
| } |
| }; |
| |
| auto append_misc = [&] { |
| // TODO: if ref.fDstCS isn't null, we'll premul here then immediately unpremul |
| // to do the color space transformation. Might be possible to streamline. |
| if (info.colorType() == kAlpha_8_SkColorType) { |
| // The color for A8 images comes from the (sRGB) paint color. |
| p->append_set_rgb(alloc, rec.fPaint.getColor4f()); |
| p->append(SkRasterPipeline::premul); |
| } else if (info.alphaType() == kUnpremul_SkAlphaType) { |
| // Convert unpremul images to premul before we carry on with the rest of the pipeline. |
| p->append(SkRasterPipeline::premul); |
| } |
| |
| if (quality > kLow_SkFilterQuality) { |
| // Bicubic filtering naturally produces out of range values on both sides. |
| p->append(SkRasterPipeline::clamp_0); |
| p->append(fClampAsIfUnpremul ? SkRasterPipeline::clamp_1 |
| : SkRasterPipeline::clamp_a); |
| } |
| |
| if (rec.fDstCS) { |
| // If color managed, convert from premul source all the way to premul dst color space. |
| auto srcCS = info.colorSpace(); |
| if (!srcCS || info.colorType() == kAlpha_8_SkColorType) { |
| // We treat untagged images as sRGB. |
| // A8 images get their r,g,b from the paint color, so they're also sRGB. |
| srcCS = sk_srgb_singleton(); |
| } |
| alloc->make<SkColorSpaceXformSteps>(srcCS , kPremul_SkAlphaType, |
| rec.fDstCS, kPremul_SkAlphaType) |
| ->apply(p, info.colorType()); |
| } |
| |
| return true; |
| }; |
| |
| // Check for fast-path stages. |
| auto ct = info.colorType(); |
| if (true |
| && (ct == kRGBA_8888_SkColorType || ct == kBGRA_8888_SkColorType) |
| && quality == kLow_SkFilterQuality |
| && fTileModeX == SkTileMode::kClamp && fTileModeY == SkTileMode::kClamp) { |
| |
| p->append(SkRasterPipeline::bilerp_clamp_8888, gather); |
| if (ct == kBGRA_8888_SkColorType) { |
| p->append(SkRasterPipeline::swap_rb); |
| } |
| return append_misc(); |
| } |
| if (true |
| && (ct == kRGBA_8888_SkColorType || ct == kBGRA_8888_SkColorType) // TODO: all formats |
| && quality == kLow_SkFilterQuality |
| && fTileModeX != SkTileMode::kDecal // TODO decal too? |
| && fTileModeY != SkTileMode::kDecal) { |
| |
| auto ctx = alloc->make<SkRasterPipeline_SamplerCtx2>(); |
| *(SkRasterPipeline_GatherCtx*)(ctx) = *gather; |
| ctx->ct = ct; |
| ctx->tileX = fTileModeX; |
| ctx->tileY = fTileModeY; |
| ctx->invWidth = 1.0f / ctx->width; |
| ctx->invHeight = 1.0f / ctx->height; |
| p->append(SkRasterPipeline::bilinear, ctx); |
| return append_misc(); |
| } |
| if (true |
| && (ct == kRGBA_8888_SkColorType || ct == kBGRA_8888_SkColorType) |
| && quality == kHigh_SkFilterQuality |
| && fTileModeX == SkTileMode::kClamp && fTileModeY == SkTileMode::kClamp) { |
| |
| p->append(SkRasterPipeline::bicubic_clamp_8888, gather); |
| if (ct == kBGRA_8888_SkColorType) { |
| p->append(SkRasterPipeline::swap_rb); |
| } |
| return append_misc(); |
| } |
| if (true |
| && (ct == kRGBA_8888_SkColorType || ct == kBGRA_8888_SkColorType) // TODO: all formats |
| && quality == kHigh_SkFilterQuality |
| && fTileModeX != SkTileMode::kDecal // TODO decal too? |
| && fTileModeY != SkTileMode::kDecal) { |
| |
| auto ctx = alloc->make<SkRasterPipeline_SamplerCtx2>(); |
| *(SkRasterPipeline_GatherCtx*)(ctx) = *gather; |
| ctx->ct = ct; |
| ctx->tileX = fTileModeX; |
| ctx->tileY = fTileModeY; |
| ctx->invWidth = 1.0f / ctx->width; |
| ctx->invHeight = 1.0f / ctx->height; |
| p->append(SkRasterPipeline::bicubic, ctx); |
| return append_misc(); |
| } |
| |
| SkRasterPipeline_SamplerCtx* sampler = nullptr; |
| if (quality != kNone_SkFilterQuality) { |
| sampler = alloc->make<SkRasterPipeline_SamplerCtx>(); |
| } |
| |
| auto sample = [&](SkRasterPipeline::StockStage setup_x, |
| SkRasterPipeline::StockStage setup_y) { |
| p->append(setup_x, sampler); |
| p->append(setup_y, sampler); |
| append_tiling_and_gather(); |
| p->append(SkRasterPipeline::accumulate, sampler); |
| }; |
| |
| if (quality == kNone_SkFilterQuality) { |
| append_tiling_and_gather(); |
| } else if (quality == kLow_SkFilterQuality) { |
| p->append(SkRasterPipeline::save_xy, sampler); |
| |
| sample(SkRasterPipeline::bilinear_nx, SkRasterPipeline::bilinear_ny); |
| sample(SkRasterPipeline::bilinear_px, SkRasterPipeline::bilinear_ny); |
| sample(SkRasterPipeline::bilinear_nx, SkRasterPipeline::bilinear_py); |
| sample(SkRasterPipeline::bilinear_px, SkRasterPipeline::bilinear_py); |
| |
| p->append(SkRasterPipeline::move_dst_src); |
| |
| } else { |
| p->append(SkRasterPipeline::save_xy, sampler); |
| |
| sample(SkRasterPipeline::bicubic_n3x, SkRasterPipeline::bicubic_n3y); |
| sample(SkRasterPipeline::bicubic_n1x, SkRasterPipeline::bicubic_n3y); |
| sample(SkRasterPipeline::bicubic_p1x, SkRasterPipeline::bicubic_n3y); |
| sample(SkRasterPipeline::bicubic_p3x, SkRasterPipeline::bicubic_n3y); |
| |
| sample(SkRasterPipeline::bicubic_n3x, SkRasterPipeline::bicubic_n1y); |
| sample(SkRasterPipeline::bicubic_n1x, SkRasterPipeline::bicubic_n1y); |
| sample(SkRasterPipeline::bicubic_p1x, SkRasterPipeline::bicubic_n1y); |
| sample(SkRasterPipeline::bicubic_p3x, SkRasterPipeline::bicubic_n1y); |
| |
| sample(SkRasterPipeline::bicubic_n3x, SkRasterPipeline::bicubic_p1y); |
| sample(SkRasterPipeline::bicubic_n1x, SkRasterPipeline::bicubic_p1y); |
| sample(SkRasterPipeline::bicubic_p1x, SkRasterPipeline::bicubic_p1y); |
| sample(SkRasterPipeline::bicubic_p3x, SkRasterPipeline::bicubic_p1y); |
| |
| sample(SkRasterPipeline::bicubic_n3x, SkRasterPipeline::bicubic_p3y); |
| sample(SkRasterPipeline::bicubic_n1x, SkRasterPipeline::bicubic_p3y); |
| sample(SkRasterPipeline::bicubic_p1x, SkRasterPipeline::bicubic_p3y); |
| sample(SkRasterPipeline::bicubic_p3x, SkRasterPipeline::bicubic_p3y); |
| |
| p->append(SkRasterPipeline::move_dst_src); |
| } |
| |
| return append_misc(); |
| } |
| |
| bool SkImageShader::onAppendStages(const SkStageRec& rec) const { |
| return this->doStages(rec, nullptr); |
| } |
| |
| SkStageUpdater* SkImageShader::onAppendUpdatableStages(const SkStageRec& rec) const { |
| auto updater = rec.fAlloc->make<SkImageStageUpdater>(); |
| updater->fShader = this; |
| return this->doStages(rec, updater) ? updater : nullptr; |
| } |
| |
