| // Copyright 2017 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "cc/paint/paint_op_writer.h" |
| |
| #include "cc/paint/draw_image.h" |
| #include "cc/paint/image_provider.h" |
| #include "cc/paint/image_transfer_cache_entry.h" |
| #include "cc/paint/paint_flags.h" |
| #include "cc/paint/paint_op_buffer_serializer.h" |
| #include "cc/paint/paint_shader.h" |
| #include "cc/paint/paint_typeface_transfer_cache_entry.h" |
| #include "cc/paint/path_transfer_cache_entry.h" |
| #include "cc/paint/transfer_cache_serialize_helper.h" |
| #include "third_party/skia/include/core/SkSerialProcs.h" |
| #include "third_party/skia/include/core/SkTextBlob.h" |
| #include "third_party/skia/src/core/SkRemoteGlyphCache.h" |
| #include "ui/gfx/geometry/rect_conversions.h" |
| #include "ui/gfx/skia_util.h" |
| |
| namespace cc { |
| namespace { |
| const size_t kSkiaAlignment = 4u; |
| |
| size_t RoundDownToAlignment(size_t bytes, size_t alignment) { |
| return bytes - (bytes & (alignment - 1)); |
| } |
| |
| SkIRect MakeSrcRect(const PaintImage& image) { |
| if (!image) |
| return SkIRect::MakeEmpty(); |
| return SkIRect::MakeWH(image.width(), image.height()); |
| } |
| |
| } // namespace |
| |
| // static |
| size_t PaintOpWriter::GetFlattenableSize(const SkFlattenable* flattenable) { |
| // The first bit is always written to indicate the serialized size of the |
| // flattenable, or zero if it doesn't exist. |
| size_t total_size = sizeof(size_t); |
| if (!flattenable) |
| return total_size; |
| |
| // There is no method to know the serialized size of a flattenable without |
| // serializing it. |
| sk_sp<SkData> data = flattenable->serialize(); |
| total_size += data->isEmpty() ? 0u : data->size(); |
| return total_size; |
| } |
| |
| // static |
| size_t PaintOpWriter::GetImageSize(const PaintImage& image) { |
| // Image Serialization type. |
| size_t image_size = sizeof(PaintOp::SerializedImageType); |
| if (image) { |
| auto info = SkImageInfo::Make(image.width(), image.height(), |
| kN32_SkColorType, kPremul_SkAlphaType); |
| image_size += sizeof(info.colorType()); |
| image_size += sizeof(info.width()); |
| image_size += sizeof(info.height()); |
| image_size += sizeof(size_t); |
| image_size += info.computeMinByteSize(); |
| } |
| return image_size; |
| } |
| |
| // static |
| size_t PaintOpWriter::GetRecordSize(const PaintRecord* record) { |
| // Zero size indicates no record. |
| // TODO(khushalsagar): Querying the size of a PaintRecord is not supported. |
| // This works only for security constrained serialization which ignores |
| // records. |
| return sizeof(size_t); |
| } |
| |
| PaintOpWriter::PaintOpWriter(void* memory, |
| size_t size, |
| const PaintOp::SerializeOptions& options, |
| bool enable_security_constraints) |
| : memory_(static_cast<char*>(memory) + HeaderBytes()), |
| size_(size), |
| remaining_bytes_(size - HeaderBytes()), |
| options_(options), |
| enable_security_constraints_(enable_security_constraints) { |
| // Leave space for header of type/skip. |
| DCHECK_GE(size, HeaderBytes()); |
| } |
| |
| PaintOpWriter::~PaintOpWriter() = default; |
| |
| template <typename T> |
| void PaintOpWriter::WriteSimple(const T& val) { |
| static_assert(base::is_trivially_copyable<T>::value, ""); |
| EnsureBytes(sizeof(T)); |
| if (!valid_) |
| return; |
| |
| reinterpret_cast<T*>(memory_)[0] = val; |
| |
| memory_ += sizeof(T); |
| remaining_bytes_ -= sizeof(T); |
| } |
| |
| void PaintOpWriter::WriteFlattenable(const SkFlattenable* val) { |
| DCHECK(SkIsAlign4(reinterpret_cast<uintptr_t>(memory_))) |
| << "Flattenable must start writing at 4 byte alignment."; |
| if (!val) { |
| WriteSize(static_cast<size_t>(0u)); |
| return; |
| } |
| |
| size_t size_offset = sizeof(size_t); |
| EnsureBytes(size_offset); |
| if (!valid_) |
| return; |
| char* size_memory = memory_; |
| memory_ += size_offset; |
| remaining_bytes_ -= size_offset; |
| |
| size_t bytes_written = val->serialize( |
| memory_, RoundDownToAlignment(remaining_bytes_, kSkiaAlignment)); |
| if (bytes_written == 0u) { |
| valid_ = false; |
| return; |
| } |
| reinterpret_cast<size_t*>(size_memory)[0] = bytes_written; |
| memory_ += bytes_written; |
| remaining_bytes_ -= bytes_written; |
| } |
| |
| void PaintOpWriter::WriteSize(size_t size) { |
| WriteSimple(size); |
| } |
| |
| void PaintOpWriter::Write(SkScalar data) { |
| WriteSimple(data); |
| } |
| |
| void PaintOpWriter::Write(uint8_t data) { |
| WriteSimple(data); |
| } |
| |
| void PaintOpWriter::Write(uint32_t data) { |
| WriteSimple(data); |
| } |
| |
| void PaintOpWriter::Write(uint64_t data) { |
| WriteSimple(data); |
| } |
| |
| void PaintOpWriter::Write(int32_t data) { |
| WriteSimple(data); |
| } |
| |
| void PaintOpWriter::Write(const SkRect& rect) { |
| WriteSimple(rect); |
| } |
| |
| void PaintOpWriter::Write(const SkIRect& rect) { |
| WriteSimple(rect); |
| } |
| |
| void PaintOpWriter::Write(const SkRRect& rect) { |
| WriteSimple(rect); |
| } |
| |
| void PaintOpWriter::Write(const SkPath& path) { |
| auto id = path.getGenerationID(); |
| auto locked = |
| options_.transfer_cache->LockEntry(TransferCacheEntryType::kPath, id); |
| if (!locked) { |
| options_.transfer_cache->CreateEntry(ClientPathTransferCacheEntry(path)); |
| options_.transfer_cache->AssertLocked(TransferCacheEntryType::kPath, id); |
| } |
| Write(id); |
| } |
| |
| void PaintOpWriter::Write(const PaintFlags& flags) { |
| Write(flags.text_size_); |
| WriteSimple(flags.color_); |
| Write(flags.width_); |
| Write(flags.miter_limit_); |
| WriteSimple(flags.blend_mode_); |
| WriteSimple(flags.bitfields_uint_); |
| |
| // Flattenables must be written starting at a 4 byte boundary, which should be |
| // the case here. |
| AlignMemory(4); |
| WriteFlattenable(flags.path_effect_.get()); |
| AlignMemory(4); |
| WriteFlattenable(flags.mask_filter_.get()); |
| AlignMemory(4); |
| WriteFlattenable(flags.color_filter_.get()); |
| |
| AlignMemory(4); |
| if (enable_security_constraints_) |
| WriteSize(static_cast<size_t>(0u)); |
| else |
| WriteFlattenable(flags.draw_looper_.get()); |
| |
| Write(flags.image_filter_.get()); |
| Write(flags.shader_.get(), flags.getFilterQuality()); |
| } |
| |
| void PaintOpWriter::Write(const DrawImage& draw_image, |
| SkSize* scale_adjustment) { |
| // We never ask for subsets during serialization. |
| const PaintImage& paint_image = draw_image.paint_image(); |
| DCHECK_EQ(paint_image.width(), draw_image.src_rect().width()); |
| DCHECK_EQ(paint_image.height(), draw_image.src_rect().height()); |
| |
| // Empty image. |
| if (!draw_image.paint_image()) { |
| Write(static_cast<uint8_t>(PaintOp::SerializedImageType::kNoImage)); |
| return; |
| } |
| |
| // Security constrained serialization inlines the image bitmap. |
| if (enable_security_constraints_) { |
| SkBitmap bm; |
| if (!draw_image.paint_image().GetSkImage()->asLegacyBitmap(&bm)) { |
| Write(static_cast<uint8_t>(PaintOp::SerializedImageType::kNoImage)); |
| return; |
| } |
| |
| Write(static_cast<uint8_t>(PaintOp::SerializedImageType::kImageData)); |
| const auto& pixmap = bm.pixmap(); |
| Write(pixmap.colorType()); |
| Write(pixmap.width()); |
| Write(pixmap.height()); |
| size_t pixmap_size = pixmap.computeByteSize(); |
| WriteSize(pixmap_size); |
| WriteData(pixmap_size, pixmap.addr()); |
| return; |
| } |
| |
| // Default mode uses the transfer cache. |
| auto decoded_image = options_.image_provider->GetDecodedDrawImage(draw_image); |
| DCHECK(!decoded_image.decoded_image().image()) |
| << "Use transfer cache for image serialization"; |
| const DecodedDrawImage& decoded_draw_image = decoded_image.decoded_image(); |
| DCHECK(decoded_draw_image.src_rect_offset().isEmpty()) |
| << "We shouldn't ask for image subsets"; |
| |
| base::Optional<uint32_t> id = decoded_draw_image.transfer_cache_entry_id(); |
| *scale_adjustment = decoded_draw_image.scale_adjustment(); |
| // In the case of a decode failure, id may not be set. Send an invalid ID. |
| WriteImage(id ? *id : kInvalidImageTransferCacheEntryId); |
| } |
| |
| void PaintOpWriter::WriteImage(uint32_t transfer_cache_entry_id) { |
| Write( |
| static_cast<uint8_t>(PaintOp::SerializedImageType::kTransferCacheEntry)); |
| Write(transfer_cache_entry_id); |
| } |
| |
| void PaintOpWriter::Write(const sk_sp<SkData>& data) { |
| if (data.get() && data->size()) { |
| WriteSize(data->size()); |
| WriteData(data->size(), data->data()); |
| } else { |
| // Differentiate between nullptr and valid but zero size. It's not clear |
| // that this happens in practice, but seems better to be consistent. |
| WriteSize(static_cast<size_t>(0)); |
| Write(!!data.get()); |
| } |
| } |
| |
| void PaintOpWriter::Write(const SkColorSpace* color_space) { |
| if (!color_space) { |
| WriteSize(static_cast<size_t>(0)); |
| return; |
| } |
| size_t size = color_space->writeToMemory(nullptr); |
| WriteSize(size); |
| |
| EnsureBytes(size); |
| if (!valid_) |
| return; |
| |
| size_t written = color_space->writeToMemory(memory_); |
| CHECK_EQ(written, size); |
| |
| memory_ += written; |
| remaining_bytes_ -= written; |
| } |
| |
| void PaintOpWriter::Write(const scoped_refptr<PaintTextBlob>& paint_blob) { |
| DCHECK(paint_blob); |
| if (!valid_) |
| return; |
| |
| const auto& blob = paint_blob->ToSkTextBlob(); |
| size_t size_offset = sizeof(size_t); |
| EnsureBytes(size_offset); |
| if (!valid_) |
| return; |
| |
| char* size_memory = memory_; |
| memory_ += size_offset; |
| remaining_bytes_ -= size_offset; |
| |
| auto encodeTypeface = [](SkTypeface* tf, void* ctx) -> sk_sp<SkData> { |
| return static_cast<SkStrikeServer*>(ctx)->serializeTypeface(tf); |
| }; |
| DCHECK(options_.strike_server); |
| SkSerialProcs procs; |
| procs.fTypefaceProc = encodeTypeface; |
| procs.fTypefaceCtx = options_.strike_server; |
| |
| size_t bytes_written = blob->serialize( |
| procs, memory_, RoundDownToAlignment(remaining_bytes_, kSkiaAlignment)); |
| if (bytes_written == 0u) { |
| valid_ = false; |
| return; |
| } |
| reinterpret_cast<size_t*>(size_memory)[0] = bytes_written; |
| memory_ += bytes_written; |
| remaining_bytes_ -= bytes_written; |
| } |
| |
| sk_sp<PaintShader> PaintOpWriter::TransformShaderIfNecessary( |
| const PaintShader* original, |
| SkFilterQuality quality, |
| uint32_t* paint_image_transfer_cache_entry_id, |
| gfx::SizeF* paint_record_post_scale) { |
| DCHECK(!enable_security_constraints_); |
| |
| const auto type = original->shader_type(); |
| const auto& ctm = options_.canvas->getTotalMatrix(); |
| |
| if (type == PaintShader::Type::kImage) { |
| return original->CreateDecodedImage(ctm, quality, options_.image_provider, |
| paint_image_transfer_cache_entry_id, |
| &quality); |
| } |
| |
| if (type == PaintShader::Type::kPaintRecord) { |
| return original->CreateScaledPaintRecord(ctm, paint_record_post_scale); |
| } |
| |
| return sk_ref_sp<PaintShader>(original); |
| } |
| |
| void PaintOpWriter::Write(const PaintShader* shader, SkFilterQuality quality) { |
| sk_sp<PaintShader> transformed_shader; |
| uint32_t paint_image_transfer_cache_id = kInvalidImageTransferCacheEntryId; |
| gfx::SizeF paint_record_post_scale(1.f, 1.f); |
| |
| if (!enable_security_constraints_ && shader) { |
| transformed_shader = TransformShaderIfNecessary( |
| shader, quality, &paint_image_transfer_cache_id, |
| &paint_record_post_scale); |
| shader = transformed_shader.get(); |
| } |
| |
| if (!shader) { |
| WriteSimple(false); |
| return; |
| } |
| |
| // TODO(vmpstr): This could be optimized to only serialize fields relevant to |
| // the specific shader type. If done, then corresponding reading and tests |
| // would have to also be updated. |
| WriteSimple(true); |
| WriteSimple(shader->shader_type_); |
| WriteSimple(shader->flags_); |
| WriteSimple(shader->end_radius_); |
| WriteSimple(shader->start_radius_); |
| WriteSimple(shader->tx_); |
| WriteSimple(shader->ty_); |
| WriteSimple(shader->fallback_color_); |
| WriteSimple(shader->scaling_behavior_); |
| if (shader->local_matrix_) { |
| Write(true); |
| WriteSimple(*shader->local_matrix_); |
| } else { |
| Write(false); |
| } |
| WriteSimple(shader->center_); |
| WriteSimple(shader->tile_); |
| WriteSimple(shader->start_point_); |
| WriteSimple(shader->end_point_); |
| WriteSimple(shader->start_degrees_); |
| WriteSimple(shader->end_degrees_); |
| |
| if (enable_security_constraints_) { |
| DrawImage draw_image(shader->image_, MakeSrcRect(shader->image_), quality, |
| SkMatrix::I()); |
| SkSize scale_adjustment = SkSize::Make(1.f, 1.f); |
| Write(draw_image, &scale_adjustment); |
| DCHECK_EQ(scale_adjustment.width(), 1.f); |
| DCHECK_EQ(scale_adjustment.height(), 1.f); |
| } else { |
| WriteImage(paint_image_transfer_cache_id); |
| } |
| |
| if (shader->record_) { |
| Write(true); |
| DCHECK_NE(shader->id_, PaintShader::kInvalidRecordShaderId); |
| Write(shader->id_); |
| const gfx::Rect playback_rect( |
| gfx::ToEnclosingRect(gfx::SkRectToRectF(shader->tile()))); |
| Write(shader->record_.get(), playback_rect, paint_record_post_scale, |
| SkMatrix::I()); |
| } else { |
| DCHECK_EQ(shader->id_, PaintShader::kInvalidRecordShaderId); |
| Write(false); |
| } |
| |
| WriteSimple(shader->colors_.size()); |
| WriteData(shader->colors_.size() * sizeof(SkColor), shader->colors_.data()); |
| |
| WriteSimple(shader->positions_.size()); |
| WriteData(shader->positions_.size() * sizeof(SkScalar), |
| shader->positions_.data()); |
| // Explicitly don't write the cached_shader_ because that can be regenerated |
| // using other fields. |
| } |
| |
| void PaintOpWriter::Write(SkColorType color_type) { |
| WriteSimple(static_cast<uint32_t>(color_type)); |
| } |
| |
| void PaintOpWriter::WriteData(size_t bytes, const void* input) { |
| EnsureBytes(bytes); |
| if (!valid_) |
| return; |
| if (bytes == 0) |
| return; |
| |
| memcpy(memory_, input, bytes); |
| memory_ += bytes; |
| remaining_bytes_ -= bytes; |
| } |
| |
| void PaintOpWriter::WriteArray(size_t count, const SkPoint* input) { |
| size_t bytes = sizeof(SkPoint) * count; |
| WriteData(bytes, input); |
| } |
| |
| void PaintOpWriter::AlignMemory(size_t alignment) { |
| // Due to the math below, alignment must be a power of two. |
| DCHECK_GT(alignment, 0u); |
| DCHECK_EQ(alignment & (alignment - 1), 0u); |
| |
| uintptr_t memory = reinterpret_cast<uintptr_t>(memory_); |
| // The following is equivalent to: |
| // padding = (alignment - memory % alignment) % alignment; |
| // because alignment is a power of two. This doesn't use modulo operator |
| // however, since it can be slow. |
| size_t padding = ((memory + alignment - 1) & ~(alignment - 1)) - memory; |
| EnsureBytes(padding); |
| if (!valid_) |
| return; |
| |
| memory_ += padding; |
| remaining_bytes_ -= padding; |
| } |
| |
| void PaintOpWriter::Write(const PaintFilter* filter) { |
| if (!filter) { |
| WriteSimple(static_cast<uint32_t>(PaintFilter::Type::kNullFilter)); |
| return; |
| } |
| WriteSimple(static_cast<uint32_t>(filter->type())); |
| auto* crop_rect = filter->crop_rect(); |
| WriteSimple(static_cast<uint32_t>(!!crop_rect)); |
| if (crop_rect) { |
| WriteSimple(crop_rect->flags()); |
| WriteSimple(crop_rect->rect()); |
| } |
| |
| if (!valid_) |
| return; |
| |
| AlignMemory(4); |
| switch (filter->type()) { |
| case PaintFilter::Type::kNullFilter: |
| NOTREACHED(); |
| break; |
| case PaintFilter::Type::kColorFilter: |
| Write(static_cast<const ColorFilterPaintFilter&>(*filter)); |
| break; |
| case PaintFilter::Type::kBlur: |
| Write(static_cast<const BlurPaintFilter&>(*filter)); |
| break; |
| case PaintFilter::Type::kDropShadow: |
| Write(static_cast<const DropShadowPaintFilter&>(*filter)); |
| break; |
| case PaintFilter::Type::kMagnifier: |
| Write(static_cast<const MagnifierPaintFilter&>(*filter)); |
| break; |
| case PaintFilter::Type::kCompose: |
| Write(static_cast<const ComposePaintFilter&>(*filter)); |
| break; |
| case PaintFilter::Type::kAlphaThreshold: |
| Write(static_cast<const AlphaThresholdPaintFilter&>(*filter)); |
| break; |
| case PaintFilter::Type::kXfermode: |
| Write(static_cast<const XfermodePaintFilter&>(*filter)); |
| break; |
| case PaintFilter::Type::kArithmetic: |
| Write(static_cast<const ArithmeticPaintFilter&>(*filter)); |
| break; |
| case PaintFilter::Type::kMatrixConvolution: |
| Write(static_cast<const MatrixConvolutionPaintFilter&>(*filter)); |
| break; |
| case PaintFilter::Type::kDisplacementMapEffect: |
| Write(static_cast<const DisplacementMapEffectPaintFilter&>(*filter)); |
| break; |
| case PaintFilter::Type::kImage: |
| Write(static_cast<const ImagePaintFilter&>(*filter)); |
| break; |
| case PaintFilter::Type::kPaintRecord: |
| Write(static_cast<const RecordPaintFilter&>(*filter)); |
| break; |
| case PaintFilter::Type::kMerge: |
| Write(static_cast<const MergePaintFilter&>(*filter)); |
| break; |
| case PaintFilter::Type::kMorphology: |
| Write(static_cast<const MorphologyPaintFilter&>(*filter)); |
| break; |
| case PaintFilter::Type::kOffset: |
| Write(static_cast<const OffsetPaintFilter&>(*filter)); |
| break; |
| case PaintFilter::Type::kTile: |
| Write(static_cast<const TilePaintFilter&>(*filter)); |
| break; |
| case PaintFilter::Type::kTurbulence: |
| Write(static_cast<const TurbulencePaintFilter&>(*filter)); |
| break; |
| case PaintFilter::Type::kPaintFlags: |
| Write(static_cast<const PaintFlagsPaintFilter&>(*filter)); |
| break; |
| case PaintFilter::Type::kMatrix: |
| Write(static_cast<const MatrixPaintFilter&>(*filter)); |
| break; |
| case PaintFilter::Type::kLightingDistant: |
| Write(static_cast<const LightingDistantPaintFilter&>(*filter)); |
| break; |
| case PaintFilter::Type::kLightingPoint: |
| Write(static_cast<const LightingPointPaintFilter&>(*filter)); |
| break; |
| case PaintFilter::Type::kLightingSpot: |
| Write(static_cast<const LightingSpotPaintFilter&>(*filter)); |
| break; |
| } |
| } |
| |
| void PaintOpWriter::Write(const ColorFilterPaintFilter& filter) { |
| WriteFlattenable(filter.color_filter().get()); |
| Write(filter.input().get()); |
| } |
| |
| void PaintOpWriter::Write(const BlurPaintFilter& filter) { |
| WriteSimple(filter.sigma_x()); |
| WriteSimple(filter.sigma_y()); |
| WriteSimple(filter.tile_mode()); |
| Write(filter.input().get()); |
| } |
| |
| void PaintOpWriter::Write(const DropShadowPaintFilter& filter) { |
| WriteSimple(filter.dx()); |
| WriteSimple(filter.dy()); |
| WriteSimple(filter.sigma_x()); |
| WriteSimple(filter.sigma_y()); |
| WriteSimple(filter.color()); |
| WriteSimple(filter.shadow_mode()); |
| Write(filter.input().get()); |
| } |
| |
| void PaintOpWriter::Write(const MagnifierPaintFilter& filter) { |
| WriteSimple(filter.src_rect()); |
| WriteSimple(filter.inset()); |
| Write(filter.input().get()); |
| } |
| |
| void PaintOpWriter::Write(const ComposePaintFilter& filter) { |
| Write(filter.outer().get()); |
| Write(filter.inner().get()); |
| } |
| |
| void PaintOpWriter::Write(const AlphaThresholdPaintFilter& filter) { |
| Write(filter.region()); |
| WriteSimple(filter.inner_min()); |
| WriteSimple(filter.outer_max()); |
| Write(filter.input().get()); |
| } |
| |
| void PaintOpWriter::Write(const XfermodePaintFilter& filter) { |
| WriteSimple(static_cast<uint32_t>(filter.blend_mode())); |
| Write(filter.background().get()); |
| Write(filter.foreground().get()); |
| } |
| |
| void PaintOpWriter::Write(const ArithmeticPaintFilter& filter) { |
| WriteSimple(filter.k1()); |
| WriteSimple(filter.k2()); |
| WriteSimple(filter.k3()); |
| WriteSimple(filter.k4()); |
| WriteSimple(filter.enforce_pm_color()); |
| Write(filter.background().get()); |
| Write(filter.foreground().get()); |
| } |
| |
| void PaintOpWriter::Write(const MatrixConvolutionPaintFilter& filter) { |
| WriteSimple(filter.kernel_size()); |
| auto size = static_cast<size_t>( |
| sk_64_mul(filter.kernel_size().width(), filter.kernel_size().height())); |
| for (size_t i = 0; i < size; ++i) |
| WriteSimple(filter.kernel_at(i)); |
| WriteSimple(filter.gain()); |
| WriteSimple(filter.bias()); |
| WriteSimple(filter.kernel_offset()); |
| WriteSimple(static_cast<uint32_t>(filter.tile_mode())); |
| WriteSimple(filter.convolve_alpha()); |
| Write(filter.input().get()); |
| } |
| |
| void PaintOpWriter::Write(const DisplacementMapEffectPaintFilter& filter) { |
| WriteSimple(static_cast<uint32_t>(filter.channel_x())); |
| WriteSimple(static_cast<uint32_t>(filter.channel_y())); |
| WriteSimple(filter.scale()); |
| Write(filter.displacement().get()); |
| Write(filter.color().get()); |
| } |
| |
| void PaintOpWriter::Write(const ImagePaintFilter& filter) { |
| DrawImage draw_image( |
| filter.image(), |
| SkIRect::MakeWH(filter.image().width(), filter.image().height()), |
| filter.filter_quality(), SkMatrix::I()); |
| SkSize scale_adjustment = SkSize::Make(1.f, 1.f); |
| Write(draw_image, &scale_adjustment); |
| DCHECK_EQ(scale_adjustment.width(), 1.f); |
| DCHECK_EQ(scale_adjustment.height(), 1.f); |
| |
| Write(filter.src_rect()); |
| Write(filter.dst_rect()); |
| Write(filter.filter_quality()); |
| } |
| |
| void PaintOpWriter::Write(const RecordPaintFilter& filter) { |
| WriteSimple(filter.record_bounds()); |
| Write(filter.record().get(), gfx::Rect(), gfx::SizeF(1.f, 1.f), |
| options_.canvas ? options_.canvas->getTotalMatrix() : SkMatrix::I()); |
| } |
| |
| void PaintOpWriter::Write(const MergePaintFilter& filter) { |
| WriteSimple(filter.input_count()); |
| for (size_t i = 0; i < filter.input_count(); ++i) |
| Write(filter.input_at(i)); |
| } |
| |
| void PaintOpWriter::Write(const MorphologyPaintFilter& filter) { |
| WriteSimple(filter.morph_type()); |
| WriteSimple(filter.radius_x()); |
| WriteSimple(filter.radius_y()); |
| Write(filter.input().get()); |
| } |
| |
| void PaintOpWriter::Write(const OffsetPaintFilter& filter) { |
| WriteSimple(filter.dx()); |
| WriteSimple(filter.dy()); |
| Write(filter.input().get()); |
| } |
| |
| void PaintOpWriter::Write(const TilePaintFilter& filter) { |
| WriteSimple(filter.src()); |
| WriteSimple(filter.dst()); |
| Write(filter.input().get()); |
| } |
| |
| void PaintOpWriter::Write(const TurbulencePaintFilter& filter) { |
| WriteSimple(filter.turbulence_type()); |
| WriteSimple(filter.base_frequency_x()); |
| WriteSimple(filter.base_frequency_y()); |
| WriteSimple(filter.num_octaves()); |
| WriteSimple(filter.seed()); |
| WriteSimple(filter.tile_size()); |
| } |
| |
| void PaintOpWriter::Write(const PaintFlagsPaintFilter& filter) { |
| Write(filter.flags()); |
| } |
| |
| void PaintOpWriter::Write(const MatrixPaintFilter& filter) { |
| WriteSimple(filter.matrix()); |
| WriteSimple(filter.filter_quality()); |
| Write(filter.input().get()); |
| } |
| |
| void PaintOpWriter::Write(const LightingDistantPaintFilter& filter) { |
| WriteSimple(filter.lighting_type()); |
| WriteSimple(filter.direction()); |
| WriteSimple(filter.light_color()); |
| WriteSimple(filter.surface_scale()); |
| WriteSimple(filter.kconstant()); |
| WriteSimple(filter.shininess()); |
| Write(filter.input().get()); |
| } |
| |
| void PaintOpWriter::Write(const LightingPointPaintFilter& filter) { |
| WriteSimple(filter.lighting_type()); |
| WriteSimple(filter.location()); |
| WriteSimple(filter.light_color()); |
| WriteSimple(filter.surface_scale()); |
| WriteSimple(filter.kconstant()); |
| WriteSimple(filter.shininess()); |
| Write(filter.input().get()); |
| } |
| |
| void PaintOpWriter::Write(const LightingSpotPaintFilter& filter) { |
| WriteSimple(filter.lighting_type()); |
| WriteSimple(filter.location()); |
| WriteSimple(filter.target()); |
| WriteSimple(filter.specular_exponent()); |
| WriteSimple(filter.cutoff_angle()); |
| WriteSimple(filter.light_color()); |
| WriteSimple(filter.surface_scale()); |
| WriteSimple(filter.kconstant()); |
| WriteSimple(filter.shininess()); |
| Write(filter.input().get()); |
| } |
| |
| void PaintOpWriter::Write(const PaintRecord* record, |
| const gfx::Rect& playback_rect, |
| const gfx::SizeF& post_scale, |
| const SkMatrix& post_matrix_for_analysis) { |
| // We need to record how many bytes we will serialize, but we don't know this |
| // information until we do the serialization. So, skip the amount needed |
| // before writing. |
| size_t size_offset = sizeof(size_t); |
| EnsureBytes(size_offset); |
| if (!valid_) |
| return; |
| |
| char* size_memory = memory_; |
| |
| memory_ += size_offset; |
| remaining_bytes_ -= size_offset; |
| AlignMemory(PaintOpBuffer::PaintOpAlign); |
| if (!valid_) |
| return; |
| |
| if (enable_security_constraints_) { |
| // We don't serialize PaintRecords when security constraints are enabled. |
| reinterpret_cast<size_t*>(size_memory)[0] = 0u; |
| return; |
| } |
| |
| SimpleBufferSerializer serializer( |
| memory_, remaining_bytes_, options_.image_provider, |
| options_.transfer_cache, options_.strike_server, options_.color_space, |
| options_.can_use_lcd_text); |
| serializer.Serialize(record, playback_rect, post_scale, |
| post_matrix_for_analysis); |
| |
| if (!serializer.valid()) { |
| valid_ = false; |
| return; |
| } |
| // Now we can write the number of bytes we used. Ensure this amount is size_t, |
| // since that's what we allocated for it. |
| static_assert(sizeof(serializer.written()) == sizeof(size_t), |
| "written() return type size is different from sizeof(size_t)"); |
| |
| // Write the size to the size memory, which preceeds the memory for the |
| // record. |
| reinterpret_cast<size_t*>(size_memory)[0] = serializer.written(); |
| |
| // The serializer should have failed if it ran out of space. DCHECK to verify |
| // that it wrote at most as many bytes as we had left. |
| DCHECK_LE(serializer.written(), remaining_bytes_); |
| memory_ += serializer.written(); |
| remaining_bytes_ -= serializer.written(); |
| } |
| |
| void PaintOpWriter::Write(const SkRegion& region) { |
| size_t bytes_required = region.writeToMemory(nullptr); |
| std::unique_ptr<char[]> data(new char[bytes_required]); |
| size_t bytes_written = region.writeToMemory(data.get()); |
| DCHECK_EQ(bytes_required, bytes_written); |
| |
| WriteSimple(bytes_written); |
| WriteData(bytes_written, data.get()); |
| } |
| |
| inline void PaintOpWriter::EnsureBytes(size_t required_bytes) { |
| if (remaining_bytes_ < required_bytes) |
| valid_ = false; |
| } |
| |
| } // namespace cc |