void SkRasterPipelineBlitter::blitMask(const SkMask& mask, const SkIRect& clip) {
if (mask.fFormat == SkMask::kBW_Format) {
// TODO: native BW masks?
return INHERITED::blitMask(mask, clip);
}
int x = clip.left();
for (int y = clip.top(); y < clip.bottom(); y++) {
auto dst = fDst.writable_addr(0,y);
SkRasterPipeline p;
p.extend(fShader);
p.extend(fColorFilter);
this->append_load_d(&p, dst);
p.extend(fXfermode);
switch (mask.fFormat) {
case SkMask::kA8_Format:
p.append<lerp_a8, lerp_a8_1>(mask.getAddr8(x,y)-x);
break;
case SkMask::kLCD16_Format:
p.append<lerp_lcd16, lerp_lcd16_1>(mask.getAddrLCD16(x,y)-x);
break;
default: break;
}
this->append_store(&p, dst);
p.run(x, clip.width());
}
}
void SkRasterPipelineBlitter::blitH(int x, int y, int w) {
auto dst = fDst.writable_addr(0,y);
SkRasterPipeline p;
p.extend(fShader);
p.extend(fColorFilter);
this->append_load_d(&p, dst);
p.extend(fXfermode);
this->append_store(&p, dst);
p.run(x, w);
}
void SkRasterPipelineBlitter::blitMask(const SkMask& mask, const SkIRect& clip) {
if (mask.fFormat == SkMask::kBW_Format) {
// TODO: native BW masks?
return INHERITED::blitMask(mask, clip);
}
if (mask.fFormat == SkMask::kA8_Format && fBlitMaskA8.empty()) {
auto& p = fBlitMaskA8;
p.extend(fShader);
if (fBlend == SkBlendMode::kSrcOver) {
p.append(SkRasterPipeline::scale_u8, &fMaskPtr);
this->append_load_d(&p);
this->append_blend(&p);
} else {
this->append_load_d(&p);
this->append_blend(&p);
p.append(SkRasterPipeline::lerp_u8, &fMaskPtr);
}
this->maybe_clamp(&p);
this->append_store(&p);
}
if (mask.fFormat == SkMask::kLCD16_Format && fBlitMaskLCD16.empty()) {
auto& p = fBlitMaskLCD16;
p.extend(fShader);
this->append_load_d(&p);
this->append_blend(&p);
p.append(SkRasterPipeline::lerp_565, &fMaskPtr);
this->maybe_clamp(&p);
this->append_store(&p);
}
int x = clip.left();
for (int y = clip.top(); y < clip.bottom(); y++) {
fDstPtr = fDst.writable_addr(0,y);
fCurrentY = y;
switch (mask.fFormat) {
case SkMask::kA8_Format:
fMaskPtr = mask.getAddr8(x,y)-x;
fBlitMaskA8.run(x,clip.width());
break;
case SkMask::kLCD16_Format:
fMaskPtr = mask.getAddrLCD16(x,y)-x;
fBlitMaskLCD16.run(x,clip.width());
break;
default:
// TODO
break;
}
}
}
void SkRasterPipelineBlitter::blitAntiH(int x, int y, const SkAlpha aa[], const int16_t runs[]) {
auto dst = fDst.writable_addr(0,y);
float coverage;
SkRasterPipeline p;
p.extend(fShader);
p.extend(fColorFilter);
this->append_load_d(&p, dst);
p.extend(fXfermode);
p.append<lerp_constant_float>(&coverage);
this->append_store(&p, dst);
for (int16_t run = *runs; run > 0; run = *runs) {
coverage = *aa * (1/255.0f);
p.run(x, run);
x += run;
runs += run;
aa += run;
}
}
bool SkColorSpaceXform_A2B::onApply(ColorFormat dstFormat, void* dst, ColorFormat srcFormat,
const void* src, int count, SkAlphaType alphaType) const {
SkRasterPipeline pipeline;
switch (srcFormat) {
case kBGRA_8888_ColorFormat:
pipeline.append(SkRasterPipeline::load_8888, &src);
pipeline.append(SkRasterPipeline::swap_rb);
break;
case kRGBA_8888_ColorFormat:
pipeline.append(SkRasterPipeline::load_8888, &src);
break;
case kRGBA_U16_BE_ColorFormat:
pipeline.append(SkRasterPipeline::load_u16_be, &src);
break;
case kRGB_U16_BE_ColorFormat:
pipeline.append(SkRasterPipeline::load_rgb_u16_be, &src);
break;
default:
SkCSXformPrintf("F16/F32 sources must be linear.\n");
return false;
}
pipeline.extend(fElementsPipeline);
if (kPremul_SkAlphaType == alphaType) {
pipeline.append(SkRasterPipeline::premul);
}
switch (dstFormat) {
case kBGRA_8888_ColorFormat:
pipeline.append(SkRasterPipeline::swap_rb);
pipeline.append(SkRasterPipeline::store_8888, &dst);
break;
case kRGBA_8888_ColorFormat:
pipeline.append(SkRasterPipeline::store_8888, &dst);
break;
case kRGBA_F16_ColorFormat:
if (!fLinearDstGamma) {
return false;
}
pipeline.append(SkRasterPipeline::store_f16, &dst);
break;
case kRGBA_F32_ColorFormat:
if (!fLinearDstGamma) {
return false;
}
pipeline.append(SkRasterPipeline::store_f32, &dst);
break;
case kBGR_565_ColorFormat:
if (kOpaque_SkAlphaType != alphaType) {
return false;
}
pipeline.append(SkRasterPipeline::store_565, &dst);
break;
default:
return false;
}
pipeline.run(0,count);
return true;
}
SkBlitter* SkRasterPipelineBlitter::Create(const SkPixmap& dst,
const SkPaint& paint,
const SkMatrix& ctm,
SkArenaAlloc* alloc) {
auto blitter = alloc->make<SkRasterPipelineBlitter>(
dst,
paint.getBlendMode(),
SkPM4f_from_SkColor(paint.getColor(), dst.colorSpace()));
SkBlendMode* blend = &blitter->fBlend;
SkPM4f* paintColor = &blitter->fPaintColor;
SkRasterPipeline* pipeline = &blitter->fShader;
SkShader* shader = paint.getShader();
SkColorFilter* colorFilter = paint.getColorFilter();
// TODO: all temporary
if (!supported(dst.info()) || !SkBlendMode_AppendStages(*blend)) {
return nullptr;
}
bool is_opaque = paintColor->a() == 1.0f,
is_constant = true;
if (shader) {
pipeline->append(SkRasterPipeline::seed_shader, &blitter->fCurrentY);
if (!shader->appendStages(pipeline, dst.colorSpace(), alloc, ctm, paint)) {
return nullptr;
}
if (!is_opaque) {
pipeline->append(SkRasterPipeline::scale_1_float,
&paintColor->fVec[SkPM4f::A]);
}
is_opaque = is_opaque && shader->isOpaque();
is_constant = shader->isConstant();
} else {
pipeline->append(SkRasterPipeline::constant_color, paintColor);
}
if (colorFilter) {
if (!colorFilter->appendStages(pipeline, dst.colorSpace(), alloc, is_opaque)) {
return nullptr;
}
is_opaque = is_opaque && (colorFilter->getFlags() & SkColorFilter::kAlphaUnchanged_Flag);
}
if (is_constant) {
pipeline->append(SkRasterPipeline::store_f32, &paintColor);
pipeline->run(0,1);
*pipeline = SkRasterPipeline();
pipeline->append(SkRasterPipeline::constant_color, paintColor);
is_opaque = paintColor->a() == 1.0f;
}
if (is_opaque && *blend == SkBlendMode::kSrcOver) {
*blend = SkBlendMode::kSrc;
}
if (is_constant && *blend == SkBlendMode::kSrc) {
SkRasterPipeline p;
p.extend(*pipeline);
blitter->fDstPtr = &blitter->fMemsetColor;
blitter->append_store(&p);
p.run(0,1);
blitter->fCanMemsetInBlitH = true;
}
return blitter;
}
SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END
bool SkImageShader::onAppendStages(const StageRec& rec) const {
SkRasterPipeline* p = rec.fPipeline;
SkArenaAlloc* alloc = rec.fAlloc;
SkMatrix matrix;
if (!this->computeTotalInverse(rec.fCTM, rec.fLocalM, &matrix)) {
return false;
}
auto quality = rec.fPaint.getFilterQuality();
SkBitmapProvider provider(fImage.get(), rec.fDstCS);
SkDefaultBitmapController controller;
std::unique_ptr<SkBitmapController::State> state {
controller.requestBitmap(provider, matrix, quality)
};
if (!state) {
return false;
}
const SkPixmap& pm = state->pixmap();
matrix = state->invMatrix();
quality = state->quality();
auto info = pm.info();
// 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(SkRasterPipeline::seed_shader);
struct MiscCtx {
std::unique_ptr<SkBitmapController::State> state;
SkColor4f paint_color;
};
auto misc = alloc->make<MiscCtx>();
misc->state = std::move(state); // Extend lifetime to match the pipeline's.
misc->paint_color = SkColor4f_from_SkColor(rec.fPaint.getColor(), rec.fDstCS);
p->append_matrix(alloc, matrix);
auto gather = alloc->make<SkJumper_GatherCtx>();
gather->pixels = pm.addr();
gather->stride = pm.rowBytesAsPixels();
gather->width = pm.width();
gather->height = pm.height();
auto limit_x = alloc->make<SkJumper_TileCtx>(),
limit_y = alloc->make<SkJumper_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();
bool is_srgb = rec.fDstCS && (!info.colorSpace() || info.gammaCloseToSRGB());
SkJumper_DecalTileCtx* decal_ctx = nullptr;
bool decal_x_and_y = fTileModeX == kDecal_TileMode && fTileModeY == kDecal_TileMode;
if (fTileModeX == kDecal_TileMode || fTileModeY == kDecal_TileMode) {
decal_ctx = alloc->make<SkJumper_DecalTileCtx>();
decal_ctx->limit_x = limit_x->scale;
decal_ctx->limit_y = limit_y->scale;
}
auto append_tiling_and_gather = [&] {
if (decal_x_and_y) {
p->append(SkRasterPipeline::decal_x_and_y, decal_ctx);
} else {
switch (fTileModeX) {
case kClamp_TileMode: /* The gather_xxx stage will clamp for us. */ break;
case kMirror_TileMode: p->append(SkRasterPipeline::mirror_x, limit_x); break;
case kRepeat_TileMode: p->append(SkRasterPipeline::repeat_x, limit_x); break;
case kDecal_TileMode: p->append(SkRasterPipeline::decal_x, decal_ctx); break;
}
switch (fTileModeY) {
case kClamp_TileMode: /* The gather_xxx stage will clamp for us. */ break;
case kMirror_TileMode: p->append(SkRasterPipeline::mirror_y, limit_y); break;
case kRepeat_TileMode: p->append(SkRasterPipeline::repeat_y, limit_y); break;
case kDecal_TileMode: 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 kGray_8_SkColorType: p->append(SkRasterPipeline::gather_g8, 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 kBGRA_8888_SkColorType: p->append(SkRasterPipeline::gather_bgra, 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 kRGBA_F16_SkColorType: p->append(SkRasterPipeline::gather_f16, ctx); 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;
default: SkASSERT(false);
}
if (decal_ctx) {
p->append(SkRasterPipeline::check_decal_mask, decal_ctx);
}
if (is_srgb) {
p->append(SkRasterPipeline::from_srgb);
}
};
auto append_misc = [&] {
if (info.colorType() == kAlpha_8_SkColorType) {
p->append(SkRasterPipeline::set_rgb, &misc->paint_color);
}
if (info.colorType() == kAlpha_8_SkColorType ||
info.alphaType() == kUnpremul_SkAlphaType) {
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);
}
append_gamut_transform(p, alloc, info.colorSpace(), rec.fDstCS,
fClampAsIfUnpremul ? kUnpremul_SkAlphaType : kPremul_SkAlphaType);
return true;
};
// We've got a fast path for 8888 bilinear clamp/clamp non-color-managed sampling.
auto ct = info.colorType();
if (true
&& (ct == kRGBA_8888_SkColorType || ct == kBGRA_8888_SkColorType)
&& quality == kLow_SkFilterQuality
&& fTileModeX == SkShader::kClamp_TileMode
&& fTileModeY == SkShader::kClamp_TileMode
&& !is_srgb) {
p->append(SkRasterPipeline::bilerp_clamp_8888, gather);
if (ct == kBGRA_8888_SkColorType) {
p->append(SkRasterPipeline::swap_rb);
}
return append_misc();
}
SkJumper_SamplerCtx* sampler = nullptr;
if (quality != kNone_SkFilterQuality) {
sampler = alloc->make<SkJumper_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();
}
