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-rw-r--r--gfx/skia/skia/src/core/SkRasterPipelineBlitter.cpp607
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diff --git a/gfx/skia/skia/src/core/SkRasterPipelineBlitter.cpp b/gfx/skia/skia/src/core/SkRasterPipelineBlitter.cpp
new file mode 100644
index 0000000000..178f6d9dcd
--- /dev/null
+++ b/gfx/skia/skia/src/core/SkRasterPipelineBlitter.cpp
@@ -0,0 +1,607 @@
+/*
+ * Copyright 2016 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "include/core/SkColor.h"
+#include "include/core/SkPaint.h"
+#include "include/core/SkPixmap.h"
+#include "include/core/SkShader.h"
+#include "include/private/base/SkTo.h"
+#include "src/base/SkArenaAlloc.h"
+#include "src/base/SkUtils.h"
+#include "src/core/SkBlendModePriv.h"
+#include "src/core/SkBlenderBase.h"
+#include "src/core/SkBlitter.h"
+#include "src/core/SkColorFilterBase.h"
+#include "src/core/SkColorSpacePriv.h"
+#include "src/core/SkColorSpaceXformSteps.h"
+#include "src/core/SkMatrixProvider.h"
+#include "src/core/SkOpts.h"
+#include "src/core/SkRasterPipeline.h"
+#include "src/shaders/SkShaderBase.h"
+
+#define SK_BLITTER_TRACE_IS_RASTER_PIPELINE
+#include "src/utils/SkBlitterTrace.h"
+
+class SkRasterPipelineBlitter final : public SkBlitter {
+public:
+ // This is our common entrypoint for creating the blitter once we've sorted out shaders.
+ static SkBlitter* Create(const SkPixmap& dst,
+ const SkPaint& paint,
+ const SkColor4f& dstPaintColor,
+ SkArenaAlloc* alloc,
+ const SkRasterPipeline& shaderPipeline,
+ bool is_opaque,
+ bool is_constant,
+ sk_sp<SkShader> clipShader);
+
+ SkRasterPipelineBlitter(SkPixmap dst,
+ SkArenaAlloc* alloc)
+ : fDst(dst)
+ , fAlloc(alloc)
+ , fColorPipeline(alloc)
+ , fBlendPipeline(alloc)
+ {}
+
+ void blitH (int x, int y, int w) override;
+ void blitAntiH (int x, int y, const SkAlpha[], const int16_t[]) override;
+ void blitAntiH2(int x, int y, U8CPU a0, U8CPU a1) override;
+ void blitAntiV2(int x, int y, U8CPU a0, U8CPU a1) override;
+ void blitMask (const SkMask&, const SkIRect& clip) override;
+ void blitRect (int x, int y, int width, int height) override;
+ void blitV (int x, int y, int height, SkAlpha alpha) override;
+
+private:
+ void blitRectWithTrace(int x, int y, int w, int h, bool trace);
+ void append_load_dst (SkRasterPipeline*) const;
+ void append_store (SkRasterPipeline*) const;
+
+ // these check internally, and only append if there was a native clipShader
+ void append_clip_scale (SkRasterPipeline*) const;
+ void append_clip_lerp (SkRasterPipeline*) const;
+
+ SkPixmap fDst;
+ SkArenaAlloc* fAlloc;
+ SkRasterPipeline fColorPipeline;
+ SkRasterPipeline fBlendPipeline;
+ // If the blender is a blend-mode, we retain that information for late-stage optimizations
+ std::optional<SkBlendMode> fBlendMode;
+ // set to pipeline storage (for alpha) if we have a clipShader
+ void* fClipShaderBuffer = nullptr; // "native" : float or U16
+
+ SkRasterPipeline_MemoryCtx
+ fDstPtr = {nullptr,0}, // Always points to the top-left of fDst.
+ fMaskPtr = {nullptr,0}; // Updated each call to blitMask().
+ SkRasterPipeline_EmbossCtx fEmbossCtx; // Used only for k3D_Format masks.
+
+ // We may be able to specialize blitH() or blitRect() into a memset.
+ void (*fMemset2D)(SkPixmap*, int x,int y, int w,int h, uint64_t color) = nullptr;
+ uint64_t fMemsetColor = 0; // Big enough for largest memsettable dst format, F16.
+
+ // Built lazily on first use.
+ std::function<void(size_t, size_t, size_t, size_t)> fBlitRect,
+ fBlitAntiH,
+ fBlitMaskA8,
+ fBlitMaskLCD16,
+ fBlitMask3D;
+
+ // These values are pointed to by the blit pipelines above,
+ // which allows us to adjust them from call to call.
+ float fCurrentCoverage = 0.0f;
+ float fDitherRate = 0.0f;
+
+ using INHERITED = SkBlitter;
+};
+
+static SkColor4f paint_color_to_dst(const SkPaint& paint, const SkPixmap& dst) {
+ SkColor4f paintColor = paint.getColor4f();
+ SkColorSpaceXformSteps(sk_srgb_singleton(), kUnpremul_SkAlphaType,
+ dst.colorSpace(), kUnpremul_SkAlphaType).apply(paintColor.vec());
+ return paintColor;
+}
+
+SkBlitter* SkCreateRasterPipelineBlitter(const SkPixmap& dst,
+ const SkPaint& paint,
+ const SkMatrix& ctm,
+ SkArenaAlloc* alloc,
+ sk_sp<SkShader> clipShader,
+ const SkSurfaceProps& props) {
+ SkColorSpace* dstCS = dst.colorSpace();
+ SkColorType dstCT = dst.colorType();
+ SkColor4f dstPaintColor = paint_color_to_dst(paint, dst);
+
+ auto shader = as_SB(paint.getShader());
+
+ SkRasterPipeline_<256> shaderPipeline;
+ if (!shader) {
+ // Having no shader makes things nice and easy... just use the paint color
+ shaderPipeline.append_constant_color(alloc, dstPaintColor.premul().vec());
+ bool is_opaque = dstPaintColor.fA == 1.0f,
+ is_constant = true;
+ return SkRasterPipelineBlitter::Create(dst, paint, dstPaintColor, alloc, shaderPipeline,
+ is_opaque, is_constant, std::move(clipShader));
+ }
+
+ bool is_opaque = shader->isOpaque() && dstPaintColor.fA == 1.0f;
+ bool is_constant = shader->isConstant();
+
+ if (shader->appendRootStages({&shaderPipeline, alloc, dstCT, dstCS, dstPaintColor, props},
+ ctm)) {
+ if (dstPaintColor.fA != 1.0f) {
+ shaderPipeline.append(SkRasterPipelineOp::scale_1_float,
+ alloc->make<float>(dstPaintColor.fA));
+ }
+ return SkRasterPipelineBlitter::Create(dst, paint, dstPaintColor, alloc, shaderPipeline,
+ is_opaque, is_constant, std::move(clipShader));
+ }
+
+ // The shader can't draw with SkRasterPipeline.
+ return nullptr;
+}
+
+SkBlitter* SkCreateRasterPipelineBlitter(const SkPixmap& dst,
+ const SkPaint& paint,
+ const SkRasterPipeline& shaderPipeline,
+ bool is_opaque,
+ SkArenaAlloc* alloc,
+ sk_sp<SkShader> clipShader) {
+ bool is_constant = false; // If this were the case, it'd be better to just set a paint color.
+ return SkRasterPipelineBlitter::Create(dst, paint, paint_color_to_dst(paint, dst), alloc,
+ shaderPipeline, is_opaque, is_constant,
+ std::move(clipShader));
+}
+
+SkBlitter* SkRasterPipelineBlitter::Create(const SkPixmap& dst,
+ const SkPaint& paint,
+ const SkColor4f& dstPaintColor,
+ SkArenaAlloc* alloc,
+ const SkRasterPipeline& shaderPipeline,
+ bool is_opaque,
+ bool is_constant,
+ sk_sp<SkShader> clipShader) {
+ auto blitter = alloc->make<SkRasterPipelineBlitter>(dst, alloc);
+
+ // Our job in this factory is to fill out the blitter's color and blend pipelines.
+ // The color pipeline is the common front of the full blit pipeline. The blend pipeline is just
+ // the portion that does the actual blending math (and assumes that src and dst are already
+ // loaded).
+ //
+ // The full blit pipelines are each constructed lazily on first use, and include the color
+ // pipeline, reading the dst, the blend pipeline, coverage, dithering, and writing the dst.
+
+ // Start with the color pipeline
+ auto colorPipeline = &blitter->fColorPipeline;
+
+ if (clipShader) {
+ auto clipP = colorPipeline;
+ SkColorType clipCT = kRGBA_8888_SkColorType;
+ SkColorSpace* clipCS = nullptr;
+ SkSurfaceProps props{}; // default OK; clipShader doesn't render text
+ SkStageRec rec = {clipP, alloc, clipCT, clipCS, SkColors::kBlack, props};
+ if (as_SB(clipShader)->appendRootStages(rec, SkMatrix::I())) {
+ struct Storage {
+ // large enough for highp (float) or lowp(U16)
+ float fA[SkRasterPipeline_kMaxStride];
+ };
+ auto storage = alloc->make<Storage>();
+ clipP->append(SkRasterPipelineOp::store_src_a, storage->fA);
+ blitter->fClipShaderBuffer = storage->fA;
+ is_constant = false;
+ } else {
+ return nullptr;
+ }
+ }
+
+ // Let's get the shader in first.
+ colorPipeline->extend(shaderPipeline);
+
+ // If there's a color filter it comes next.
+ if (auto colorFilter = paint.getColorFilter()) {
+ SkSurfaceProps props{}; // default OK; colorFilter doesn't render text
+ SkStageRec rec = {
+ colorPipeline, alloc, dst.colorType(), dst.colorSpace(), dstPaintColor, props};
+ if (!as_CFB(colorFilter)->appendStages(rec, is_opaque)) {
+ return nullptr;
+ }
+ is_opaque = is_opaque && as_CFB(colorFilter)->isAlphaUnchanged();
+ }
+
+ // Not all formats make sense to dither (think, F16). We set their dither rate
+ // to zero. We only dither non-constant shaders, so is_constant won't change here.
+ if (paint.isDither() && !is_constant) {
+ switch (dst.info().colorType()) {
+ case kARGB_4444_SkColorType:
+ blitter->fDitherRate = 1 / 15.0f;
+ break;
+ case kRGB_565_SkColorType:
+ blitter->fDitherRate = 1 / 63.0f;
+ break;
+ case kGray_8_SkColorType:
+ case kRGB_888x_SkColorType:
+ case kRGBA_8888_SkColorType:
+ case kBGRA_8888_SkColorType:
+ case kSRGBA_8888_SkColorType:
+ case kR8_unorm_SkColorType:
+ blitter->fDitherRate = 1 / 255.0f;
+ break;
+ case kRGB_101010x_SkColorType:
+ case kRGBA_1010102_SkColorType:
+ case kBGR_101010x_SkColorType:
+ case kBGRA_1010102_SkColorType:
+ blitter->fDitherRate = 1 / 1023.0f;
+ break;
+
+ case kUnknown_SkColorType:
+ case kAlpha_8_SkColorType:
+ case kBGR_101010x_XR_SkColorType:
+ case kRGBA_F16_SkColorType:
+ case kRGBA_F16Norm_SkColorType:
+ case kRGBA_F32_SkColorType:
+ case kR8G8_unorm_SkColorType:
+ case kA16_float_SkColorType:
+ case kA16_unorm_SkColorType:
+ case kR16G16_float_SkColorType:
+ case kR16G16_unorm_SkColorType:
+ case kR16G16B16A16_unorm_SkColorType:
+ blitter->fDitherRate = 0.0f;
+ break;
+ }
+ if (blitter->fDitherRate > 0.0f) {
+ colorPipeline->append(SkRasterPipelineOp::dither, &blitter->fDitherRate);
+ }
+ }
+
+ // Optimization: A pipeline that's still constant here can collapse back into a constant color.
+ if (is_constant) {
+ SkColor4f constantColor;
+ SkRasterPipeline_MemoryCtx constantColorPtr = { &constantColor, 0 };
+ // We could remove this clamp entirely, but if the destination is 8888, doing the clamp
+ // here allows the color pipeline to still run in lowp (we'll use uniform_color, rather than
+ // unbounded_uniform_color).
+ colorPipeline->append_clamp_if_normalized(dst.info());
+ colorPipeline->append(SkRasterPipelineOp::store_f32, &constantColorPtr);
+ colorPipeline->run(0,0,1,1);
+ colorPipeline->reset();
+ colorPipeline->append_constant_color(alloc, constantColor);
+
+ is_opaque = constantColor.fA == 1.0f;
+ }
+
+ // Now we'll build the blend pipeline
+ auto blendPipeline = &blitter->fBlendPipeline;
+
+ sk_sp<SkBlender> blender = paint.refBlender();
+ if (!blender) {
+ blender = SkBlender::Mode(SkBlendMode::kSrcOver);
+ }
+
+ // We can strength-reduce SrcOver into Src when opaque.
+ if (is_opaque && as_BB(blender)->asBlendMode() == SkBlendMode::kSrcOver) {
+ blender = SkBlender::Mode(SkBlendMode::kSrc);
+ }
+
+ // When we're drawing a constant color in Src mode, we can sometimes just memset.
+ // (The previous two optimizations help find more opportunities for this one.)
+ if (is_constant && as_BB(blender)->asBlendMode() == SkBlendMode::kSrc &&
+ dst.info().bytesPerPixel() <= static_cast<int>(sizeof(blitter->fMemsetColor))) {
+ // Run our color pipeline all the way through to produce what we'd memset when we can.
+ // Not all blits can memset, so we need to keep colorPipeline too.
+ SkRasterPipeline_<256> p;
+ p.extend(*colorPipeline);
+ blitter->fDstPtr = SkRasterPipeline_MemoryCtx{&blitter->fMemsetColor, 0};
+ blitter->append_store(&p);
+ p.run(0,0,1,1);
+
+ switch (blitter->fDst.shiftPerPixel()) {
+ case 0: blitter->fMemset2D = [](SkPixmap* dst, int x,int y, int w,int h, uint64_t c) {
+ void* p = dst->writable_addr(x,y);
+ while (h --> 0) {
+ memset(p, c, w);
+ p = SkTAddOffset<void>(p, dst->rowBytes());
+ }
+ }; break;
+
+ case 1: blitter->fMemset2D = [](SkPixmap* dst, int x,int y, int w,int h, uint64_t c) {
+ SkOpts::rect_memset16(dst->writable_addr16(x,y), c, w, dst->rowBytes(), h);
+ }; break;
+
+ case 2: blitter->fMemset2D = [](SkPixmap* dst, int x,int y, int w,int h, uint64_t c) {
+ SkOpts::rect_memset32(dst->writable_addr32(x,y), c, w, dst->rowBytes(), h);
+ }; break;
+
+ case 3: blitter->fMemset2D = [](SkPixmap* dst, int x,int y, int w,int h, uint64_t c) {
+ SkOpts::rect_memset64(dst->writable_addr64(x,y), c, w, dst->rowBytes(), h);
+ }; break;
+
+ // TODO(F32)?
+ }
+ }
+
+ {
+ SkSurfaceProps props{}; // default OK; blender doesn't render text
+ SkStageRec rec = {
+ blendPipeline, alloc, dst.colorType(), dst.colorSpace(), dstPaintColor, props};
+ if (!as_BB(blender)->appendStages(rec)) {
+ return nullptr;
+ }
+ blitter->fBlendMode = as_BB(blender)->asBlendMode();
+ }
+
+ blitter->fDstPtr = SkRasterPipeline_MemoryCtx{
+ blitter->fDst.writable_addr(),
+ blitter->fDst.rowBytesAsPixels(),
+ };
+
+ return blitter;
+}
+
+void SkRasterPipelineBlitter::append_load_dst(SkRasterPipeline* p) const {
+ p->append_load_dst(fDst.info().colorType(), &fDstPtr);
+ if (fDst.info().alphaType() == kUnpremul_SkAlphaType) {
+ p->append(SkRasterPipelineOp::premul_dst);
+ }
+}
+
+void SkRasterPipelineBlitter::append_store(SkRasterPipeline* p) const {
+ if (fDst.info().alphaType() == kUnpremul_SkAlphaType) {
+ p->append(SkRasterPipelineOp::unpremul);
+ }
+ p->append_store(fDst.info().colorType(), &fDstPtr);
+}
+
+void SkRasterPipelineBlitter::append_clip_scale(SkRasterPipeline* p) const {
+ if (fClipShaderBuffer) {
+ p->append(SkRasterPipelineOp::scale_native, fClipShaderBuffer);
+ }
+}
+
+void SkRasterPipelineBlitter::append_clip_lerp(SkRasterPipeline* p) const {
+ if (fClipShaderBuffer) {
+ p->append(SkRasterPipelineOp::lerp_native, fClipShaderBuffer);
+ }
+}
+
+void SkRasterPipelineBlitter::blitH(int x, int y, int w) {
+ this->blitRect(x,y,w,1);
+}
+
+void SkRasterPipelineBlitter::blitRect(int x, int y, int w, int h) {
+ this->blitRectWithTrace(x, y, w, h, true);
+}
+
+void SkRasterPipelineBlitter::blitRectWithTrace(int x, int y, int w, int h, bool trace) {
+ if (fMemset2D) {
+ SK_BLITTER_TRACE_STEP(blitRectByMemset,
+ trace,
+ /*scanlines=*/h,
+ /*pixels=*/w * h);
+ fMemset2D(&fDst, x,y, w,h, fMemsetColor);
+ return;
+ }
+
+ if (!fBlitRect) {
+ SkRasterPipeline p(fAlloc);
+ p.extend(fColorPipeline);
+ p.append_clamp_if_normalized(fDst.info());
+ if (fBlendMode == SkBlendMode::kSrcOver
+ && (fDst.info().colorType() == kRGBA_8888_SkColorType ||
+ fDst.info().colorType() == kBGRA_8888_SkColorType)
+ && !fDst.colorSpace()
+ && fDst.info().alphaType() != kUnpremul_SkAlphaType
+ && fDitherRate == 0.0f) {
+ if (fDst.info().colorType() == kBGRA_8888_SkColorType) {
+ p.append(SkRasterPipelineOp::swap_rb);
+ }
+ this->append_clip_scale(&p);
+ p.append(SkRasterPipelineOp::srcover_rgba_8888, &fDstPtr);
+ } else {
+ if (fBlendMode != SkBlendMode::kSrc) {
+ this->append_load_dst(&p);
+ p.extend(fBlendPipeline);
+ this->append_clip_lerp(&p);
+ } else if (fClipShaderBuffer) {
+ this->append_load_dst(&p);
+ this->append_clip_lerp(&p);
+ }
+ this->append_store(&p);
+ }
+ fBlitRect = p.compile();
+ }
+
+ SK_BLITTER_TRACE_STEP(blitRect, trace, /*scanlines=*/h, /*pixels=*/w * h);
+ fBlitRect(x,y,w,h);
+}
+
+void SkRasterPipelineBlitter::blitAntiH(int x, int y, const SkAlpha aa[], const int16_t runs[]) {
+ if (!fBlitAntiH) {
+ SkRasterPipeline p(fAlloc);
+ p.extend(fColorPipeline);
+ p.append_clamp_if_normalized(fDst.info());
+ if (fBlendMode.has_value() &&
+ SkBlendMode_ShouldPreScaleCoverage(*fBlendMode, /*rgb_coverage=*/false)) {
+ p.append(SkRasterPipelineOp::scale_1_float, &fCurrentCoverage);
+ this->append_clip_scale(&p);
+ this->append_load_dst(&p);
+ p.extend(fBlendPipeline);
+ } else {
+ this->append_load_dst(&p);
+ p.extend(fBlendPipeline);
+ p.append(SkRasterPipelineOp::lerp_1_float, &fCurrentCoverage);
+ this->append_clip_lerp(&p);
+ }
+
+ this->append_store(&p);
+ fBlitAntiH = p.compile();
+ }
+
+ SK_BLITTER_TRACE_STEP(blitAntiH, true, /*scanlines=*/1ul, /*pixels=*/0ul);
+ for (int16_t run = *runs; run > 0; run = *runs) {
+ SK_BLITTER_TRACE_STEP_ACCUMULATE(blitAntiH, /*pixels=*/run);
+ switch (*aa) {
+ case 0x00: break;
+ case 0xff:this->blitRectWithTrace(x,y,run, 1, false); break;
+ default:
+ fCurrentCoverage = *aa * (1/255.0f);
+ fBlitAntiH(x,y,run,1);
+ }
+ x += run;
+ runs += run;
+ aa += run;
+ }
+}
+
+void SkRasterPipelineBlitter::blitAntiH2(int x, int y, U8CPU a0, U8CPU a1) {
+ SkIRect clip = {x,y, x+2,y+1};
+ uint8_t coverage[] = { (uint8_t)a0, (uint8_t)a1 };
+
+ SkMask mask;
+ mask.fImage = coverage;
+ mask.fBounds = clip;
+ mask.fRowBytes = 2;
+ mask.fFormat = SkMask::kA8_Format;
+
+ this->blitMask(mask, clip);
+}
+
+void SkRasterPipelineBlitter::blitAntiV2(int x, int y, U8CPU a0, U8CPU a1) {
+ SkIRect clip = {x,y, x+1,y+2};
+ uint8_t coverage[] = { (uint8_t)a0, (uint8_t)a1 };
+
+ SkMask mask;
+ mask.fImage = coverage;
+ mask.fBounds = clip;
+ mask.fRowBytes = 1;
+ mask.fFormat = SkMask::kA8_Format;
+
+ this->blitMask(mask, clip);
+}
+
+void SkRasterPipelineBlitter::blitV(int x, int y, int height, SkAlpha alpha) {
+ SkIRect clip = {x,y, x+1,y+height};
+
+ SkMask mask;
+ mask.fImage = &alpha;
+ mask.fBounds = clip;
+ mask.fRowBytes = 0; // so we reuse the 1 "row" for all of height
+ mask.fFormat = SkMask::kA8_Format;
+
+ this->blitMask(mask, clip);
+}
+
+void SkRasterPipelineBlitter::blitMask(const SkMask& mask, const SkIRect& clip) {
+ if (mask.fFormat == SkMask::kBW_Format) {
+ // TODO: native BW masks?
+ return INHERITED::blitMask(mask, clip);
+ }
+
+ // ARGB and SDF masks shouldn't make it here.
+ SkASSERT(mask.fFormat == SkMask::kA8_Format
+ || mask.fFormat == SkMask::kLCD16_Format
+ || mask.fFormat == SkMask::k3D_Format);
+
+ auto extract_mask_plane = [&mask](int plane, SkRasterPipeline_MemoryCtx* ctx) {
+ // LCD is 16-bit per pixel; A8 and 3D are 8-bit per pixel.
+ size_t bpp = mask.fFormat == SkMask::kLCD16_Format ? 2 : 1;
+
+ // Select the right mask plane. Usually plane == 0 and this is just mask.fImage.
+ auto ptr = (uintptr_t)mask.fImage
+ + plane * mask.computeImageSize();
+
+ // Update ctx to point "into" this current mask, but lined up with fDstPtr at (0,0).
+ // This sort of trickery upsets UBSAN (pointer-overflow) so our ptr must be a uintptr_t.
+ // mask.fRowBytes is a uint32_t, which would break our addressing math on 64-bit builds.
+ size_t rowBytes = mask.fRowBytes;
+ ctx->stride = rowBytes / bpp;
+ ctx->pixels = (void*)(ptr - mask.fBounds.left() * bpp
+ - mask.fBounds.top() * rowBytes);
+ };
+
+ extract_mask_plane(0, &fMaskPtr);
+ if (mask.fFormat == SkMask::k3D_Format) {
+ extract_mask_plane(1, &fEmbossCtx.mul);
+ extract_mask_plane(2, &fEmbossCtx.add);
+ }
+
+ // Lazily build whichever pipeline we need, specialized for each mask format.
+ if (mask.fFormat == SkMask::kA8_Format && !fBlitMaskA8) {
+ SkRasterPipeline p(fAlloc);
+ p.extend(fColorPipeline);
+ p.append_clamp_if_normalized(fDst.info());
+ if (fBlendMode.has_value() &&
+ SkBlendMode_ShouldPreScaleCoverage(*fBlendMode, /*rgb_coverage=*/false)) {
+ p.append(SkRasterPipelineOp::scale_u8, &fMaskPtr);
+ this->append_clip_scale(&p);
+ this->append_load_dst(&p);
+ p.extend(fBlendPipeline);
+ } else {
+ this->append_load_dst(&p);
+ p.extend(fBlendPipeline);
+ p.append(SkRasterPipelineOp::lerp_u8, &fMaskPtr);
+ this->append_clip_lerp(&p);
+ }
+ this->append_store(&p);
+ fBlitMaskA8 = p.compile();
+ }
+ if (mask.fFormat == SkMask::kLCD16_Format && !fBlitMaskLCD16) {
+ SkRasterPipeline p(fAlloc);
+ p.extend(fColorPipeline);
+ p.append_clamp_if_normalized(fDst.info());
+ if (fBlendMode.has_value() &&
+ SkBlendMode_ShouldPreScaleCoverage(*fBlendMode, /*rgb_coverage=*/true)) {
+ // Somewhat unusually, scale_565 needs dst loaded first.
+ this->append_load_dst(&p);
+ p.append(SkRasterPipelineOp::scale_565, &fMaskPtr);
+ this->append_clip_scale(&p);
+ p.extend(fBlendPipeline);
+ } else {
+ this->append_load_dst(&p);
+ p.extend(fBlendPipeline);
+ p.append(SkRasterPipelineOp::lerp_565, &fMaskPtr);
+ this->append_clip_lerp(&p);
+ }
+ this->append_store(&p);
+ fBlitMaskLCD16 = p.compile();
+ }
+ if (mask.fFormat == SkMask::k3D_Format && !fBlitMask3D) {
+ SkRasterPipeline p(fAlloc);
+ p.extend(fColorPipeline);
+ // This bit is where we differ from kA8_Format:
+ p.append(SkRasterPipelineOp::emboss, &fEmbossCtx);
+ // Now onward just as kA8.
+ p.append_clamp_if_normalized(fDst.info());
+ if (fBlendMode.has_value() &&
+ SkBlendMode_ShouldPreScaleCoverage(*fBlendMode, /*rgb_coverage=*/false)) {
+ p.append(SkRasterPipelineOp::scale_u8, &fMaskPtr);
+ this->append_clip_scale(&p);
+ this->append_load_dst(&p);
+ p.extend(fBlendPipeline);
+ } else {
+ this->append_load_dst(&p);
+ p.extend(fBlendPipeline);
+ p.append(SkRasterPipelineOp::lerp_u8, &fMaskPtr);
+ this->append_clip_lerp(&p);
+ }
+ this->append_store(&p);
+ fBlitMask3D = p.compile();
+ }
+
+ std::function<void(size_t,size_t,size_t,size_t)>* blitter = nullptr;
+ switch (mask.fFormat) {
+ case SkMask::kA8_Format: blitter = &fBlitMaskA8; break;
+ case SkMask::kLCD16_Format: blitter = &fBlitMaskLCD16; break;
+ case SkMask::k3D_Format: blitter = &fBlitMask3D; break;
+ default:
+ SkASSERT(false);
+ return;
+ }
+
+ SkASSERT(blitter);
+ SK_BLITTER_TRACE_STEP(blitMask,
+ true,
+ /*scanlines=*/clip.height(),
+ /*pixels=*/clip.width() * clip.height());
+ (*blitter)(clip.left(),clip.top(), clip.width(),clip.height());
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-08-03 13:09:45 +0000