diff options
Diffstat (limited to 'src/core/SkRasterPipelineBlitter.cpp')
| -rw-r--r-- | src/core/SkRasterPipelineBlitter.cpp | 53 |
1 files changed, 47 insertions, 6 deletions
diff --git a/src/core/SkRasterPipelineBlitter.cpp b/src/core/SkRasterPipelineBlitter.cpp index cba39f021d..3502174de1 100644 --- a/src/core/SkRasterPipelineBlitter.cpp +++ b/src/core/SkRasterPipelineBlitter.cpp @@ -25,14 +25,17 @@ public: // This is our common entrypoint for creating the blitter once we've sorted out shaders. static SkBlitter* Create(const SkPixmap&, const SkPaint&, SkArenaAlloc*, const SkRasterPipeline& shaderPipeline, + SkShaderBase::Context*, bool is_opaque, bool is_constant, bool wants_dither); SkRasterPipelineBlitter(SkPixmap dst, SkBlendMode blend, - SkArenaAlloc* alloc) + SkArenaAlloc* alloc, + SkShaderBase::Context* burstCtx) : fDst(dst) , fBlend(blend) , fAlloc(alloc) + , fBurstCtx(burstCtx) , fColorPipeline(alloc) {} @@ -51,9 +54,13 @@ private: void maybe_clamp (SkRasterPipeline*) const; void append_store (SkRasterPipeline*) const; + // If we have an burst context, use it to fill our shader buffer. + void maybe_shade(int x, int y, int w); + SkPixmap fDst; SkBlendMode fBlend; SkArenaAlloc* fAlloc; + SkShaderBase::Context* fBurstCtx; SkRasterPipeline fColorPipeline; // We may be able to specialize blitH() into a memset. @@ -68,11 +75,14 @@ private: // These values are pointed to by the blit pipelines above, // which allows us to adjust them from call to call. + void* fShaderOutput = nullptr; void* fDstPtr = nullptr; const void* fMaskPtr = nullptr; float fCurrentCoverage = 0.0f; float fDitherRate = 0.0f; + std::vector<SkPM4f> fShaderBuffer; + typedef SkBlitter INHERITED; }; @@ -96,20 +106,31 @@ SkBlitter* SkCreateRasterPipelineBlitter(const SkPixmap& dst, bool is_opaque = paintColor->a() == 1.0f, is_constant = true; return SkRasterPipelineBlitter::Create(dst, paint, alloc, - shaderPipeline, + shaderPipeline, nullptr, is_opaque, is_constant, wants_dither); } bool is_opaque = shader->isOpaque() && paintColor->a() == 1.0f; bool is_constant = shader->isConstant(); + + // Check whether the shader prefers to run in burst mode. + if (auto* burstCtx = shader->makeBurstPipelineContext( + SkShaderBase::ContextRec(paint, ctm, nullptr, SkShaderBase::ContextRec::kPM4f_DstType, + dstCS), alloc)) { + return SkRasterPipelineBlitter::Create(dst, paint, alloc, + shaderPipeline, burstCtx, + is_opaque, is_constant, wants_dither); + } + if (shader->appendStages(&shaderPipeline, dstCS, alloc, ctm, paint)) { if (paintColor->a() != 1.0f) { shaderPipeline.append(SkRasterPipeline::scale_1_float, &paintColor->fVec[SkPM4f::A]); } - return SkRasterPipelineBlitter::Create(dst, paint, alloc, shaderPipeline, + return SkRasterPipelineBlitter::Create(dst, paint, alloc, shaderPipeline, nullptr, is_opaque, is_constant, wants_dither); } + // The shader has opted out of drawing anything. return alloc->make<SkNullBlitter>(); } @@ -120,7 +141,7 @@ SkBlitter* SkCreateRasterPipelineBlitter(const SkPixmap& dst, bool wants_dither, SkArenaAlloc* alloc) { bool is_constant = false; // If this were the case, it'd be better to just set a paint color. - return SkRasterPipelineBlitter::Create(dst, paint, alloc, shaderPipeline, + return SkRasterPipelineBlitter::Create(dst, paint, alloc, shaderPipeline, nullptr, is_opaque, is_constant, wants_dither); } @@ -128,12 +149,14 @@ SkBlitter* SkRasterPipelineBlitter::Create(const SkPixmap& dst, const SkPaint& paint, SkArenaAlloc* alloc, const SkRasterPipeline& shaderPipeline, + SkShaderBase::Context* burstCtx, bool is_opaque, bool is_constant, bool wants_dither) { auto blitter = alloc->make<SkRasterPipelineBlitter>(dst, paint.getBlendMode(), - alloc); + alloc, + burstCtx); // Our job in this factory is to fill out the blitter's color pipeline. // This is the common front of the full blit pipelines, each constructed lazily on first use. @@ -141,7 +164,11 @@ SkBlitter* SkRasterPipelineBlitter::Create(const SkPixmap& dst, auto colorPipeline = &blitter->fColorPipeline; // Let's get the shader in first. - colorPipeline->extend(shaderPipeline); + if (burstCtx) { + colorPipeline->append(SkRasterPipeline::load_f32, &blitter->fShaderOutput); + } else { + colorPipeline->extend(shaderPipeline); + } // If there's a color filter it comes next. if (auto colorFilter = paint.getColorFilter()) { @@ -250,6 +277,17 @@ void SkRasterPipelineBlitter::maybe_clamp(SkRasterPipeline* p) const { } } +void SkRasterPipelineBlitter::maybe_shade(int x, int y, int w) { + if (fBurstCtx) { + if (w > SkToInt(fShaderBuffer.size())) { + fShaderBuffer.resize(w); + } + fBurstCtx->shadeSpan4f(x,y, fShaderBuffer.data(), w); + // We'll be reading from fShaderOutput + x. + fShaderOutput = fShaderBuffer.data() - x; + } +} + void SkRasterPipelineBlitter::blitH(int x, int y, int w) { fDstPtr = fDst.writable_addr(0,y); @@ -281,6 +319,7 @@ void SkRasterPipelineBlitter::blitH(int x, int y, int w) { } fBlitH = p.compile(); } + this->maybe_shade(x,y,w); fBlitH(x,y,w); } @@ -308,6 +347,7 @@ void SkRasterPipelineBlitter::blitAntiH(int x, int y, const SkAlpha aa[], const case 0x00: break; case 0xff: this->blitH(x,y,run); break; default: + this->maybe_shade(x,y,run); fCurrentCoverage = *aa * (1/255.0f); fBlitAntiH(x,y,run); } @@ -368,6 +408,7 @@ void SkRasterPipelineBlitter::blitMask(const SkMask& mask, const SkIRect& clip) for (int y = clip.top(); y < clip.bottom(); y++) { fDstPtr = fDst.writable_addr(0,y); + this->maybe_shade(x,y,clip.width()); switch (mask.fFormat) { case SkMask::kA8_Format: fMaskPtr = mask.getAddr8(x,y)-x; |