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6369737676
LLVM 18 on macOS correctly errs when we try to allocate an incomplete SkiaSurface object.
971 lines
38 KiB
C++
971 lines
38 KiB
C++
/*
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* Copyright (c) 2024, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#define AK_DONT_REPLACE_STD
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#include <core/SkBitmap.h>
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#include <core/SkBlurTypes.h>
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#include <core/SkCanvas.h>
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#include <core/SkColorFilter.h>
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#include <core/SkMaskFilter.h>
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#include <core/SkPath.h>
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#include <core/SkPathBuilder.h>
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#include <core/SkRRect.h>
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#include <core/SkSurface.h>
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#include <effects/SkGradientShader.h>
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#include <effects/SkImageFilters.h>
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#include <gpu/GrDirectContext.h>
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#include <gpu/ganesh/SkSurfaceGanesh.h>
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#include <pathops/SkPathOps.h>
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#include <LibGfx/Filters/StackBlurFilter.h>
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#include <LibWeb/CSS/ComputedValues.h>
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#include <LibWeb/Painting/DisplayListPlayerSkia.h>
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#include <LibWeb/Painting/ShadowPainting.h>
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#ifdef AK_OS_MACOS
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# define FixedPoint FixedPointMacOS
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# define Duration DurationMacOS
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# include <gpu/GrBackendSurface.h>
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# include <gpu/ganesh/mtl/GrMtlBackendContext.h>
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# include <gpu/ganesh/mtl/GrMtlDirectContext.h>
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# undef FixedPoint
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# undef Duration
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#endif
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namespace Web::Painting {
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class DisplayListPlayerSkia::SkiaSurface {
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public:
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SkCanvas& canvas() const { return *surface->getCanvas(); }
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SkiaSurface(sk_sp<SkSurface> surface)
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: surface(move(surface))
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{
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}
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private:
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sk_sp<SkSurface> surface;
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};
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#ifdef AK_OS_MACOS
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class SkiaMetalBackendContext final : public SkiaBackendContext {
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AK_MAKE_NONCOPYABLE(SkiaMetalBackendContext);
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AK_MAKE_NONMOVABLE(SkiaMetalBackendContext);
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public:
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SkiaMetalBackendContext(sk_sp<GrDirectContext> context)
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: m_context(move(context))
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{
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}
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~SkiaMetalBackendContext() override {};
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sk_sp<SkSurface> wrap_metal_texture(Core::MetalTexture& metal_texture)
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{
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GrMtlTextureInfo mtl_info;
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mtl_info.fTexture = sk_ret_cfp(metal_texture.texture());
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auto backend_render_target = GrBackendRenderTarget(metal_texture.width(), metal_texture.height(), mtl_info);
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return SkSurfaces::WrapBackendRenderTarget(m_context.get(), backend_render_target, kTopLeft_GrSurfaceOrigin, kBGRA_8888_SkColorType, nullptr, nullptr);
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}
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void flush_and_submit() override
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{
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m_context->flush();
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m_context->submit(GrSyncCpu::kYes);
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}
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private:
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sk_sp<GrDirectContext> m_context;
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};
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OwnPtr<SkiaBackendContext> DisplayListPlayerSkia::create_metal_context(Core::MetalContext const& metal_context)
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{
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GrMtlBackendContext backend_context;
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backend_context.fDevice.retain((GrMTLHandle)metal_context.device());
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backend_context.fQueue.retain((GrMTLHandle)metal_context.queue());
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sk_sp<GrDirectContext> ctx = GrDirectContexts::MakeMetal(backend_context);
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return make<SkiaMetalBackendContext>(ctx);
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}
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DisplayListPlayerSkia::DisplayListPlayerSkia(SkiaBackendContext& context, Core::MetalTexture& metal_texture)
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{
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auto image_info = SkImageInfo::Make(metal_texture.width(), metal_texture.height(), kBGRA_8888_SkColorType, kPremul_SkAlphaType);
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VERIFY(is<SkiaMetalBackendContext>(context));
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auto surface = static_cast<SkiaMetalBackendContext&>(context).wrap_metal_texture(metal_texture);
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if (!surface) {
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dbgln("Failed to create Skia surface from Metal texture");
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VERIFY_NOT_REACHED();
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}
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m_surface = make<SkiaSurface>(surface);
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m_flush_context = [&context] mutable {
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context.flush_and_submit();
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};
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}
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#endif
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DisplayListPlayerSkia::DisplayListPlayerSkia(Gfx::Bitmap& bitmap)
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{
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VERIFY(bitmap.format() == Gfx::BitmapFormat::BGRA8888);
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auto image_info = SkImageInfo::Make(bitmap.width(), bitmap.height(), kBGRA_8888_SkColorType, kPremul_SkAlphaType);
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auto surface = SkSurfaces::WrapPixels(image_info, bitmap.begin(), bitmap.pitch());
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VERIFY(surface);
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m_surface = make<SkiaSurface>(surface);
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}
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DisplayListPlayerSkia::~DisplayListPlayerSkia()
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{
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if (m_flush_context)
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m_flush_context();
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}
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static SkRect to_skia_rect(auto const& rect)
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{
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return SkRect::MakeXYWH(rect.x(), rect.y(), rect.width(), rect.height());
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}
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static SkColor to_skia_color(Gfx::Color const& color)
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{
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return SkColorSetARGB(color.alpha(), color.red(), color.green(), color.blue());
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}
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static SkPath to_skia_path(Gfx::Path const& path)
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{
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Optional<Gfx::FloatPoint> subpath_start_point;
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Optional<Gfx::FloatPoint> subpath_last_point;
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SkPathBuilder path_builder;
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auto close_subpath_if_needed = [&](auto last_point) {
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if (subpath_start_point == last_point)
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path_builder.close();
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};
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for (auto const& segment : path) {
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auto point = segment.point();
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subpath_last_point = point;
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switch (segment.command()) {
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case Gfx::PathSegment::Command::MoveTo: {
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if (subpath_start_point.has_value())
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close_subpath_if_needed(subpath_start_point.value());
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subpath_start_point = point;
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path_builder.moveTo({ point.x(), point.y() });
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break;
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}
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case Gfx::PathSegment::Command::LineTo: {
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if (!subpath_start_point.has_value())
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subpath_start_point = Gfx::FloatPoint { 0.0f, 0.0f };
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path_builder.lineTo({ point.x(), point.y() });
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break;
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}
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case Gfx::PathSegment::Command::QuadraticBezierCurveTo: {
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if (!subpath_start_point.has_value())
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subpath_start_point = Gfx::FloatPoint { 0.0f, 0.0f };
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SkPoint pt1 = { segment.through().x(), segment.through().y() };
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SkPoint pt2 = { segment.point().x(), segment.point().y() };
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path_builder.quadTo(pt1, pt2);
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break;
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}
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case Gfx::PathSegment::Command::CubicBezierCurveTo: {
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if (!subpath_start_point.has_value())
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subpath_start_point = Gfx::FloatPoint { 0.0f, 0.0f };
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SkPoint pt1 = { segment.through_0().x(), segment.through_0().y() };
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SkPoint pt2 = { segment.through_1().x(), segment.through_1().y() };
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SkPoint pt3 = { segment.point().x(), segment.point().y() };
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path_builder.cubicTo(pt1, pt2, pt3);
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break;
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}
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default:
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VERIFY_NOT_REACHED();
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}
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}
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close_subpath_if_needed(subpath_last_point);
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return path_builder.snapshot();
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}
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static SkPathFillType to_skia_path_fill_type(Gfx::WindingRule winding_rule)
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{
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switch (winding_rule) {
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case Gfx::WindingRule::Nonzero:
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return SkPathFillType::kWinding;
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case Gfx::WindingRule::EvenOdd:
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return SkPathFillType::kEvenOdd;
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}
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VERIFY_NOT_REACHED();
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}
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static SkRRect to_skia_rrect(auto const& rect, CornerRadii const& corner_radii)
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{
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SkRRect rrect;
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SkVector radii[4];
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radii[0].set(corner_radii.top_left.horizontal_radius, corner_radii.top_left.vertical_radius);
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radii[1].set(corner_radii.top_right.horizontal_radius, corner_radii.top_right.vertical_radius);
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radii[2].set(corner_radii.bottom_right.horizontal_radius, corner_radii.bottom_right.vertical_radius);
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radii[3].set(corner_radii.bottom_left.horizontal_radius, corner_radii.bottom_left.vertical_radius);
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rrect.setRectRadii(to_skia_rect(rect), radii);
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return rrect;
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}
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static SkColorType to_skia_color_type(Gfx::BitmapFormat format)
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{
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switch (format) {
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case Gfx::BitmapFormat::Invalid:
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return kUnknown_SkColorType;
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case Gfx::BitmapFormat::BGRA8888:
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case Gfx::BitmapFormat::BGRx8888:
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return kBGRA_8888_SkColorType;
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case Gfx::BitmapFormat::RGBA8888:
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return kRGBA_8888_SkColorType;
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default:
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return kUnknown_SkColorType;
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}
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}
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static SkBitmap to_skia_bitmap(Gfx::Bitmap const& bitmap)
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{
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SkColorType color_type = to_skia_color_type(bitmap.format());
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SkImageInfo image_info = SkImageInfo::Make(bitmap.width(), bitmap.height(), color_type, kUnpremul_SkAlphaType);
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SkBitmap sk_bitmap;
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sk_bitmap.setInfo(image_info);
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if (!sk_bitmap.installPixels(image_info, (void*)bitmap.begin(), bitmap.width() * 4)) {
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VERIFY_NOT_REACHED();
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}
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return sk_bitmap;
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}
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static SkMatrix to_skia_matrix(Gfx::AffineTransform const& affine_transform)
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{
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SkScalar affine[6];
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affine[0] = affine_transform.a();
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affine[1] = affine_transform.b();
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affine[2] = affine_transform.c();
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affine[3] = affine_transform.d();
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affine[4] = affine_transform.e();
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affine[5] = affine_transform.f();
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SkMatrix matrix;
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matrix.setAffine(affine);
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return matrix;
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}
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static SkSamplingOptions to_skia_sampling_options(Gfx::ScalingMode scaling_mode)
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{
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switch (scaling_mode) {
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case Gfx::ScalingMode::NearestNeighbor:
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return SkSamplingOptions(SkFilterMode::kNearest);
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case Gfx::ScalingMode::BilinearBlend:
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case Gfx::ScalingMode::SmoothPixels:
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return SkSamplingOptions(SkFilterMode::kLinear);
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case Gfx::ScalingMode::BoxSampling:
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return SkSamplingOptions(SkCubicResampler::Mitchell());
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default:
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VERIFY_NOT_REACHED();
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}
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}
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#define APPLY_PATH_CLIP_IF_NEEDED \
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ScopeGuard restore_path_clip { [&] { \
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if (command.clip_paths.size() > 0) \
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surface().canvas().restore(); \
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} }; \
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if (command.clip_paths.size() > 0) { \
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surface().canvas().save(); \
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for (auto const& path : command.clip_paths) \
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surface().canvas().clipPath(to_skia_path(path), true); \
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}
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DisplayListPlayerSkia::SkiaSurface& DisplayListPlayerSkia::surface() const
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{
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return static_cast<SkiaSurface&>(*m_surface);
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}
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CommandResult DisplayListPlayerSkia::draw_glyph_run(DrawGlyphRun const& command)
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{
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auto& canvas = surface().canvas();
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SkPaint paint;
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paint.setColorFilter(SkColorFilters::Blend(to_skia_color(command.color), SkBlendMode::kSrcIn));
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auto const& glyphs = command.glyph_run->glyphs();
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for (auto const& glyph_or_emoji : glyphs) {
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auto transformed_glyph = glyph_or_emoji;
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transformed_glyph.visit([&](auto& glyph) {
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glyph.position = glyph.position.scaled(command.scale).translated(command.translation);
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glyph.font = glyph.font->with_size(glyph.font->point_size() * static_cast<float>(command.scale));
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});
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if (transformed_glyph.has<Gfx::DrawGlyph>()) {
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auto& glyph = transformed_glyph.get<Gfx::DrawGlyph>();
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auto const& point = glyph.position;
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auto const& code_point = glyph.code_point;
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auto top_left = point + Gfx::FloatPoint(glyph.font->glyph_left_bearing(code_point), 0);
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auto glyph_position = Gfx::GlyphRasterPosition::get_nearest_fit_for(top_left);
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auto maybe_font_glyph = glyph.font->glyph(code_point, glyph_position.subpixel_offset);
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if (!maybe_font_glyph.has_value())
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continue;
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if (maybe_font_glyph->is_color_bitmap()) {
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TODO();
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} else {
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auto sk_bitmap = to_skia_bitmap(*maybe_font_glyph->bitmap());
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auto sk_image = SkImages::RasterFromBitmap(sk_bitmap);
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auto const& blit_position = glyph_position.blit_position;
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canvas.drawImage(sk_image, blit_position.x(), blit_position.y(), SkSamplingOptions(), &paint);
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}
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}
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}
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return CommandResult::Continue;
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}
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CommandResult DisplayListPlayerSkia::fill_rect(FillRect const& command)
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{
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APPLY_PATH_CLIP_IF_NEEDED
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auto const& rect = command.rect;
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auto& canvas = surface().canvas();
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SkPaint paint;
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paint.setColor(to_skia_color(command.color));
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canvas.drawRect(to_skia_rect(rect), paint);
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return CommandResult::Continue;
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}
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CommandResult DisplayListPlayerSkia::draw_scaled_bitmap(DrawScaledBitmap const& command)
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{
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auto src_rect = to_skia_rect(command.src_rect);
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auto dst_rect = to_skia_rect(command.dst_rect);
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auto bitmap = to_skia_bitmap(command.bitmap);
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auto image = SkImages::RasterFromBitmap(bitmap);
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auto& canvas = surface().canvas();
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SkPaint paint;
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canvas.drawImageRect(image, src_rect, dst_rect, to_skia_sampling_options(command.scaling_mode), &paint, SkCanvas::kStrict_SrcRectConstraint);
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return CommandResult::Continue;
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}
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CommandResult DisplayListPlayerSkia::draw_scaled_immutable_bitmap(DrawScaledImmutableBitmap const& command)
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{
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APPLY_PATH_CLIP_IF_NEEDED
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auto src_rect = to_skia_rect(command.src_rect);
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auto dst_rect = to_skia_rect(command.dst_rect);
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auto bitmap = to_skia_bitmap(command.bitmap->bitmap());
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auto image = SkImages::RasterFromBitmap(bitmap);
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auto& canvas = surface().canvas();
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SkPaint paint;
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canvas.drawImageRect(image, src_rect, dst_rect, to_skia_sampling_options(command.scaling_mode), &paint, SkCanvas::kStrict_SrcRectConstraint);
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return CommandResult::Continue;
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}
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CommandResult DisplayListPlayerSkia::add_clip_rect(AddClipRect const& command)
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{
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auto& canvas = surface().canvas();
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auto const& rect = command.rect;
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canvas.clipRect(to_skia_rect(rect));
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return CommandResult::Continue;
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}
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CommandResult DisplayListPlayerSkia::save(Save const&)
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{
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auto& canvas = surface().canvas();
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canvas.save();
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return CommandResult::Continue;
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}
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CommandResult DisplayListPlayerSkia::restore(Restore const&)
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{
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auto& canvas = surface().canvas();
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canvas.restore();
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return CommandResult::Continue;
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}
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static SkBitmap alpha_mask_from_bitmap(Gfx::Bitmap const& bitmap, Gfx::Bitmap::MaskKind kind)
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{
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SkBitmap alpha_mask;
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alpha_mask.allocPixels(SkImageInfo::MakeA8(bitmap.width(), bitmap.height()));
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for (int y = 0; y < bitmap.height(); y++) {
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for (int x = 0; x < bitmap.width(); x++) {
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if (kind == Gfx::Bitmap::MaskKind::Luminance) {
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auto color = bitmap.get_pixel(x, y);
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*alpha_mask.getAddr8(x, y) = color.alpha() * color.luminosity() / 255;
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} else {
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VERIFY(kind == Gfx::Bitmap::MaskKind::Alpha);
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auto color = bitmap.get_pixel(x, y);
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*alpha_mask.getAddr8(x, y) = color.alpha();
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}
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}
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}
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return alpha_mask;
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}
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CommandResult DisplayListPlayerSkia::push_stacking_context(PushStackingContext const& command)
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{
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auto& canvas = surface().canvas();
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auto affine_transform = Gfx::extract_2d_affine_transform(command.transform.matrix);
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auto new_transform = Gfx::AffineTransform {}
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.set_translation(command.post_transform_translation.to_type<float>())
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.translate(command.transform.origin)
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.multiply(affine_transform)
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.translate(-command.transform.origin);
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auto matrix = to_skia_matrix(new_transform);
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if (command.opacity < 1) {
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auto source_paintable_rect = to_skia_rect(command.source_paintable_rect);
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SkRect dest;
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matrix.mapRect(&dest, source_paintable_rect);
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canvas.saveLayerAlphaf(&dest, command.opacity);
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} else {
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canvas.save();
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}
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if (command.mask.has_value()) {
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auto alpha_mask = alpha_mask_from_bitmap(*command.mask.value().mask_bitmap, command.mask.value().mask_kind);
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SkMatrix mask_matrix;
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auto mask_position = command.source_paintable_rect.location();
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mask_matrix.setTranslate(mask_position.x(), mask_position.y());
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auto shader = alpha_mask.makeShader(SkSamplingOptions(), mask_matrix);
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canvas.clipShader(shader);
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}
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if (command.is_fixed_position) {
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// FIXME: Resetting matrix is not correct when element is nested in a transformed stacking context
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canvas.resetMatrix();
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}
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canvas.concat(matrix);
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return CommandResult::Continue;
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}
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CommandResult DisplayListPlayerSkia::pop_stacking_context(PopStackingContext const&)
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{
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surface().canvas().restore();
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return CommandResult::Continue;
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}
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CommandResult DisplayListPlayerSkia::paint_linear_gradient(PaintLinearGradient const& command)
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{
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APPLY_PATH_CLIP_IF_NEEDED
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auto const& linear_gradient_data = command.linear_gradient_data;
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// FIXME: Account for repeat length
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Vector<SkColor> colors;
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colors.ensure_capacity(linear_gradient_data.color_stops.list.size());
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Vector<SkScalar> positions;
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positions.ensure_capacity(linear_gradient_data.color_stops.list.size());
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auto const& list = linear_gradient_data.color_stops.list;
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for (auto const& color_stop : linear_gradient_data.color_stops.list) {
|
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// FIXME: Account for ColorStop::transition_hint
|
||
colors.append(to_skia_color(color_stop.color));
|
||
positions.append(color_stop.position);
|
||
}
|
||
|
||
auto const& rect = command.gradient_rect;
|
||
auto length = calculate_gradient_length<int>(rect.size(), linear_gradient_data.gradient_angle);
|
||
auto bottom = rect.center().translated(0, -length / 2);
|
||
auto top = rect.center().translated(0, length / 2);
|
||
|
||
Array<SkPoint, 2> points;
|
||
points[0] = SkPoint::Make(top.x(), top.y());
|
||
points[1] = SkPoint::Make(bottom.x(), bottom.y());
|
||
|
||
auto center = to_skia_rect(rect).center();
|
||
SkMatrix matrix;
|
||
matrix.setRotate(linear_gradient_data.gradient_angle, center.x(), center.y());
|
||
|
||
auto shader = SkGradientShader::MakeLinear(points.data(), colors.data(), positions.data(), list.size(), SkTileMode::kClamp, 0, &matrix);
|
||
|
||
SkPaint paint;
|
||
paint.setShader(shader);
|
||
surface().canvas().drawRect(to_skia_rect(rect), paint);
|
||
|
||
return CommandResult::Continue;
|
||
}
|
||
|
||
static void add_spread_distance_to_border_radius(int& border_radius, int spread_distance)
|
||
{
|
||
if (border_radius == 0 || spread_distance == 0)
|
||
return;
|
||
|
||
// https://drafts.csswg.org/css-backgrounds/#shadow-shape
|
||
// To preserve the box’s shape when spread is applied, the corner radii of the shadow are also increased (decreased,
|
||
// for inner shadows) from the border-box (padding-box) radii by adding (subtracting) the spread distance (and flooring
|
||
// at zero). However, in order to create a sharper corner when the border radius is small (and thus ensure continuity
|
||
// between round and sharp corners), when the border radius is less than the spread distance (or in the case of an inner
|
||
// shadow, less than the absolute value of a negative spread distance), the spread distance is first multiplied by the
|
||
// proportion 1 + (r-1)^3, where r is the ratio of the border radius to the spread distance, in calculating the corner
|
||
// radii of the spread shadow shape.
|
||
if (border_radius > AK::abs(spread_distance)) {
|
||
border_radius += spread_distance;
|
||
} else {
|
||
auto r = (float)border_radius / AK::abs(spread_distance);
|
||
border_radius += spread_distance * (1 + AK::pow(r - 1, 3.0f));
|
||
}
|
||
}
|
||
|
||
CommandResult DisplayListPlayerSkia::paint_outer_box_shadow(PaintOuterBoxShadow const& command)
|
||
{
|
||
auto const& outer_box_shadow_params = command.box_shadow_params;
|
||
auto const& color = outer_box_shadow_params.color;
|
||
auto const& spread_distance = outer_box_shadow_params.spread_distance;
|
||
auto const& blur_radius = outer_box_shadow_params.blur_radius;
|
||
|
||
auto content_rrect = to_skia_rrect(outer_box_shadow_params.device_content_rect, outer_box_shadow_params.corner_radii);
|
||
|
||
auto shadow_rect = outer_box_shadow_params.device_content_rect;
|
||
shadow_rect.inflate(spread_distance, spread_distance, spread_distance, spread_distance);
|
||
auto offset_x = outer_box_shadow_params.offset_x;
|
||
auto offset_y = outer_box_shadow_params.offset_y;
|
||
shadow_rect.translate_by(offset_x, offset_y);
|
||
|
||
auto add_spread_distance_to_corner_radius = [&](auto& corner_radius) {
|
||
add_spread_distance_to_border_radius(corner_radius.horizontal_radius, spread_distance);
|
||
add_spread_distance_to_border_radius(corner_radius.vertical_radius, spread_distance);
|
||
};
|
||
|
||
auto corner_radii = outer_box_shadow_params.corner_radii;
|
||
add_spread_distance_to_corner_radius(corner_radii.top_left);
|
||
add_spread_distance_to_corner_radius(corner_radii.top_right);
|
||
add_spread_distance_to_corner_radius(corner_radii.bottom_right);
|
||
add_spread_distance_to_corner_radius(corner_radii.bottom_left);
|
||
|
||
auto& canvas = surface().canvas();
|
||
canvas.save();
|
||
canvas.clipRRect(content_rrect, SkClipOp::kDifference, true);
|
||
SkPaint paint;
|
||
paint.setColor(to_skia_color(color));
|
||
paint.setMaskFilter(SkMaskFilter::MakeBlur(kNormal_SkBlurStyle, blur_radius / 2));
|
||
auto shadow_rounded_rect = to_skia_rrect(shadow_rect, corner_radii);
|
||
canvas.drawRRect(shadow_rounded_rect, paint);
|
||
canvas.restore();
|
||
|
||
return CommandResult::Continue;
|
||
}
|
||
|
||
CommandResult DisplayListPlayerSkia::paint_inner_box_shadow(PaintInnerBoxShadow const& command)
|
||
{
|
||
auto const& outer_box_shadow_params = command.box_shadow_params;
|
||
auto color = outer_box_shadow_params.color;
|
||
auto device_content_rect = outer_box_shadow_params.device_content_rect;
|
||
auto offset_x = outer_box_shadow_params.offset_x;
|
||
auto offset_y = outer_box_shadow_params.offset_y;
|
||
auto blur_radius = outer_box_shadow_params.blur_radius;
|
||
auto spread_distance = outer_box_shadow_params.spread_distance;
|
||
auto const& corner_radii = outer_box_shadow_params.corner_radii;
|
||
|
||
auto outer_shadow_rect = device_content_rect.translated({ offset_x, offset_y });
|
||
auto inner_shadow_rect = outer_shadow_rect.inflated(-spread_distance, -spread_distance, -spread_distance, -spread_distance);
|
||
outer_shadow_rect.inflate(
|
||
blur_radius + offset_y,
|
||
blur_radius + abs(offset_x),
|
||
blur_radius + abs(offset_y),
|
||
blur_radius + offset_x);
|
||
|
||
auto inner_rect_corner_radii = corner_radii;
|
||
|
||
auto add_spread_distance_to_corner_radius = [&](auto& corner_radius) {
|
||
add_spread_distance_to_border_radius(corner_radius.horizontal_radius, -spread_distance);
|
||
add_spread_distance_to_border_radius(corner_radius.vertical_radius, -spread_distance);
|
||
};
|
||
|
||
add_spread_distance_to_corner_radius(inner_rect_corner_radii.top_left);
|
||
add_spread_distance_to_corner_radius(inner_rect_corner_radii.top_right);
|
||
add_spread_distance_to_corner_radius(inner_rect_corner_radii.bottom_right);
|
||
add_spread_distance_to_corner_radius(inner_rect_corner_radii.bottom_left);
|
||
|
||
auto outer_rect = to_skia_rrect(outer_shadow_rect, corner_radii);
|
||
auto inner_rect = to_skia_rrect(inner_shadow_rect, inner_rect_corner_radii);
|
||
|
||
SkPath outer_path;
|
||
outer_path.addRRect(outer_rect);
|
||
SkPath inner_path;
|
||
inner_path.addRRect(inner_rect);
|
||
|
||
SkPath result_path;
|
||
if (!Op(outer_path, inner_path, SkPathOp::kDifference_SkPathOp, &result_path)) {
|
||
VERIFY_NOT_REACHED();
|
||
}
|
||
|
||
auto& canvas = surface().canvas();
|
||
SkPaint path_paint;
|
||
path_paint.setColor(to_skia_color(color));
|
||
path_paint.setMaskFilter(SkMaskFilter::MakeBlur(kNormal_SkBlurStyle, blur_radius / 2));
|
||
canvas.save();
|
||
canvas.clipRRect(to_skia_rrect(device_content_rect, corner_radii), true);
|
||
canvas.drawPath(result_path, path_paint);
|
||
canvas.restore();
|
||
|
||
return CommandResult::Continue;
|
||
}
|
||
|
||
CommandResult DisplayListPlayerSkia::paint_text_shadow(PaintTextShadow const&)
|
||
{
|
||
return CommandResult::Continue;
|
||
}
|
||
|
||
CommandResult DisplayListPlayerSkia::fill_rect_with_rounded_corners(FillRectWithRoundedCorners const& command)
|
||
{
|
||
APPLY_PATH_CLIP_IF_NEEDED
|
||
|
||
auto const& rect = command.rect;
|
||
|
||
auto& canvas = surface().canvas();
|
||
SkPaint paint;
|
||
paint.setColor(to_skia_color(command.color));
|
||
|
||
SkRRect rounded_rect;
|
||
SkVector radii[4];
|
||
radii[0].set(command.top_left_radius.horizontal_radius, command.top_left_radius.vertical_radius);
|
||
radii[1].set(command.top_right_radius.horizontal_radius, command.top_right_radius.vertical_radius);
|
||
radii[2].set(command.bottom_right_radius.horizontal_radius, command.bottom_right_radius.vertical_radius);
|
||
radii[3].set(command.bottom_left_radius.horizontal_radius, command.bottom_left_radius.vertical_radius);
|
||
rounded_rect.setRectRadii(to_skia_rect(rect), radii);
|
||
canvas.drawRRect(rounded_rect, paint);
|
||
|
||
return CommandResult::Continue;
|
||
}
|
||
|
||
CommandResult DisplayListPlayerSkia::fill_path_using_color(FillPathUsingColor const& command)
|
||
{
|
||
auto& canvas = surface().canvas();
|
||
SkPaint paint;
|
||
paint.setAntiAlias(true);
|
||
paint.setColor(to_skia_color(command.color));
|
||
auto path = to_skia_path(command.path);
|
||
path.setFillType(to_skia_path_fill_type(command.winding_rule));
|
||
path.offset(command.aa_translation.x(), command.aa_translation.y());
|
||
canvas.drawPath(path, paint);
|
||
return CommandResult::Continue;
|
||
}
|
||
|
||
SkPaint paint_style_to_skia_paint(Painting::SVGGradientPaintStyle const& paint_style, Gfx::FloatRect bounding_rect)
|
||
{
|
||
SkPaint paint;
|
||
if (is<SVGLinearGradientPaintStyle>(paint_style)) {
|
||
auto const& linear_gradient_paint_style = static_cast<SVGLinearGradientPaintStyle const&>(paint_style);
|
||
|
||
SkMatrix matrix;
|
||
auto scale = linear_gradient_paint_style.scale();
|
||
auto start_point = linear_gradient_paint_style.start_point().scaled(scale);
|
||
auto end_point = linear_gradient_paint_style.end_point().scaled(scale);
|
||
|
||
start_point.translate_by(bounding_rect.location());
|
||
end_point.translate_by(bounding_rect.location());
|
||
|
||
Array<SkPoint, 2> points;
|
||
points[0] = SkPoint::Make(start_point.x(), start_point.y());
|
||
points[1] = SkPoint::Make(end_point.x(), end_point.y());
|
||
|
||
auto const& color_stops = linear_gradient_paint_style.color_stops();
|
||
|
||
Vector<SkColor> colors;
|
||
colors.ensure_capacity(color_stops.size());
|
||
Vector<SkScalar> positions;
|
||
positions.ensure_capacity(color_stops.size());
|
||
|
||
for (auto const& color_stop : linear_gradient_paint_style.color_stops()) {
|
||
colors.append(to_skia_color(color_stop.color));
|
||
positions.append(color_stop.position);
|
||
}
|
||
|
||
auto shader = SkGradientShader::MakeLinear(points.data(), colors.data(), positions.data(), color_stops.size(), SkTileMode::kClamp, 0, &matrix);
|
||
paint.setShader(shader);
|
||
} else if (is<SVGRadialGradientPaintStyle>(paint_style)) {
|
||
// TODO:
|
||
}
|
||
|
||
return paint;
|
||
}
|
||
|
||
CommandResult DisplayListPlayerSkia::fill_path_using_paint_style(FillPathUsingPaintStyle const& command)
|
||
{
|
||
auto path = to_skia_path(command.path);
|
||
path.offset(command.aa_translation.x(), command.aa_translation.y());
|
||
path.setFillType(to_skia_path_fill_type(command.winding_rule));
|
||
auto paint = paint_style_to_skia_paint(*command.paint_style, command.bounding_rect().to_type<float>());
|
||
paint.setAntiAlias(true);
|
||
paint.setAlphaf(command.opacity);
|
||
surface().canvas().drawPath(path, paint);
|
||
return CommandResult::Continue;
|
||
}
|
||
|
||
CommandResult DisplayListPlayerSkia::stroke_path_using_color(StrokePathUsingColor const& command)
|
||
{
|
||
auto& canvas = surface().canvas();
|
||
SkPaint paint;
|
||
paint.setAntiAlias(true);
|
||
paint.setStyle(SkPaint::kStroke_Style);
|
||
paint.setStrokeWidth(command.thickness);
|
||
paint.setColor(to_skia_color(command.color));
|
||
auto path = to_skia_path(command.path);
|
||
path.offset(command.aa_translation.x(), command.aa_translation.y());
|
||
canvas.drawPath(path, paint);
|
||
return CommandResult::Continue;
|
||
}
|
||
|
||
CommandResult DisplayListPlayerSkia::stroke_path_using_paint_style(StrokePathUsingPaintStyle const& command)
|
||
{
|
||
auto path = to_skia_path(command.path);
|
||
path.offset(command.aa_translation.x(), command.aa_translation.y());
|
||
auto paint = paint_style_to_skia_paint(*command.paint_style, command.bounding_rect().to_type<float>());
|
||
paint.setAntiAlias(true);
|
||
paint.setAlphaf(command.opacity);
|
||
paint.setStyle(SkPaint::Style::kStroke_Style);
|
||
paint.setStrokeWidth(command.thickness);
|
||
surface().canvas().drawPath(path, paint);
|
||
return CommandResult::Continue;
|
||
}
|
||
|
||
CommandResult DisplayListPlayerSkia::draw_ellipse(DrawEllipse const& command)
|
||
{
|
||
auto const& rect = command.rect;
|
||
auto& canvas = surface().canvas();
|
||
SkPaint paint;
|
||
paint.setAntiAlias(true);
|
||
paint.setStyle(SkPaint::kStroke_Style);
|
||
paint.setStrokeWidth(command.thickness);
|
||
paint.setColor(to_skia_color(command.color));
|
||
canvas.drawOval(to_skia_rect(rect), paint);
|
||
return CommandResult::Continue;
|
||
}
|
||
|
||
CommandResult DisplayListPlayerSkia::fill_ellipse(FillEllipse const& command)
|
||
{
|
||
auto const& rect = command.rect;
|
||
auto& canvas = surface().canvas();
|
||
SkPaint paint;
|
||
paint.setAntiAlias(true);
|
||
paint.setColor(to_skia_color(command.color));
|
||
canvas.drawOval(to_skia_rect(rect), paint);
|
||
return CommandResult::Continue;
|
||
}
|
||
|
||
CommandResult DisplayListPlayerSkia::draw_line(DrawLine const& command)
|
||
{
|
||
auto from = SkPoint::Make(command.from.x(), command.from.y());
|
||
auto to = SkPoint::Make(command.to.x(), command.to.y());
|
||
auto& canvas = surface().canvas();
|
||
SkPaint paint;
|
||
paint.setStrokeWidth(command.thickness);
|
||
paint.setColor(to_skia_color(command.color));
|
||
canvas.drawLine(from, to, paint);
|
||
return CommandResult::Continue;
|
||
}
|
||
|
||
CommandResult DisplayListPlayerSkia::apply_backdrop_filter(ApplyBackdropFilter const& command)
|
||
{
|
||
auto& canvas = surface().canvas();
|
||
|
||
auto rect = to_skia_rect(command.backdrop_region);
|
||
canvas.save();
|
||
canvas.clipRect(rect);
|
||
ScopeGuard guard = [&] { canvas.restore(); };
|
||
|
||
for (auto const& filter_function : command.backdrop_filter.filters) {
|
||
// See: https://drafts.fxtf.org/filter-effects-1/#supported-filter-functions
|
||
filter_function.visit(
|
||
[&](CSS::ResolvedBackdropFilter::Blur const& blur_filter) {
|
||
auto blur_image_filter = SkImageFilters::Blur(blur_filter.radius, blur_filter.radius, nullptr);
|
||
canvas.saveLayer(SkCanvas::SaveLayerRec(nullptr, nullptr, blur_image_filter.get(), 0));
|
||
canvas.restore();
|
||
},
|
||
[&](CSS::ResolvedBackdropFilter::ColorOperation const& color) {
|
||
auto amount = clamp(color.amount, 0.0f, 1.0f);
|
||
|
||
// Matrices are taken from https://drafts.fxtf.org/filter-effects-1/#FilterPrimitiveRepresentation
|
||
sk_sp<SkColorFilter> color_filter;
|
||
switch (color.operation) {
|
||
case CSS::Filter::Color::Operation::Grayscale: {
|
||
float matrix[20] = {
|
||
0.2126f + 0.7874f * (1 - amount), 0.7152f - 0.7152f * (1 - amount), 0.0722f - 0.0722f * (1 - amount), 0, 0,
|
||
0.2126f - 0.2126f * (1 - amount), 0.7152f + 0.2848f * (1 - amount), 0.0722f - 0.0722f * (1 - amount), 0, 0,
|
||
0.2126f - 0.2126f * (1 - amount), 0.7152f - 0.7152f * (1 - amount), 0.0722f + 0.9278f * (1 - amount), 0, 0,
|
||
0, 0, 0, 1, 0
|
||
};
|
||
color_filter = SkColorFilters::Matrix(matrix);
|
||
break;
|
||
}
|
||
case CSS::Filter::Color::Operation::Brightness: {
|
||
float matrix[20] = {
|
||
amount, 0, 0, 0, 0,
|
||
0, amount, 0, 0, 0,
|
||
0, 0, amount, 0, 0,
|
||
0, 0, 0, 1, 0
|
||
};
|
||
color_filter = SkColorFilters::Matrix(matrix);
|
||
break;
|
||
}
|
||
case CSS::Filter::Color::Operation::Contrast: {
|
||
float intercept = -(0.5f * amount) + 0.5f;
|
||
float matrix[20] = {
|
||
amount, 0, 0, 0, intercept,
|
||
0, amount, 0, 0, intercept,
|
||
0, 0, amount, 0, intercept,
|
||
0, 0, 0, 1, 0
|
||
};
|
||
color_filter = SkColorFilters::Matrix(matrix);
|
||
break;
|
||
}
|
||
case CSS::Filter::Color::Operation::Invert: {
|
||
float matrix[20] = {
|
||
1 - 2 * amount, 0, 0, 0, amount,
|
||
0, 1 - 2 * amount, 0, 0, amount,
|
||
0, 0, 1 - 2 * amount, 0, amount,
|
||
0, 0, 0, 1, 0
|
||
};
|
||
color_filter = SkColorFilters::Matrix(matrix);
|
||
break;
|
||
}
|
||
case CSS::Filter::Color::Operation::Opacity: {
|
||
float matrix[20] = {
|
||
1, 0, 0, 0, 0,
|
||
0, 1, 0, 0, 0,
|
||
0, 0, 1, 0, 0,
|
||
0, 0, 0, amount, 0
|
||
};
|
||
color_filter = SkColorFilters::Matrix(matrix);
|
||
break;
|
||
}
|
||
case CSS::Filter::Color::Operation::Sepia: {
|
||
float matrix[20] = {
|
||
0.393f + 0.607f * (1 - amount), 0.769f - 0.769f * (1 - amount), 0.189f - 0.189f * (1 - amount), 0, 0,
|
||
0.349f - 0.349f * (1 - amount), 0.686f + 0.314f * (1 - amount), 0.168f - 0.168f * (1 - amount), 0, 0,
|
||
0.272f - 0.272f * (1 - amount), 0.534f - 0.534f * (1 - amount), 0.131f + 0.869f * (1 - amount), 0, 0,
|
||
0, 0, 0, 1, 0
|
||
};
|
||
color_filter = SkColorFilters::Matrix(matrix);
|
||
break;
|
||
}
|
||
case CSS::Filter::Color::Operation::Saturate: {
|
||
float matrix[20] = {
|
||
0.213f + 0.787f * amount, 0.715f - 0.715f * amount, 0.072f - 0.072f * amount, 0, 0,
|
||
0.213f - 0.213f * amount, 0.715f + 0.285f * amount, 0.072f - 0.072f * amount, 0, 0,
|
||
0.213f - 0.213f * amount, 0.715f - 0.715f * amount, 0.072f + 0.928f * amount, 0, 0,
|
||
0, 0, 0, 1, 0
|
||
};
|
||
color_filter = SkColorFilters::Matrix(matrix);
|
||
break;
|
||
}
|
||
default:
|
||
VERIFY_NOT_REACHED();
|
||
}
|
||
|
||
auto image_filter = SkImageFilters::ColorFilter(color_filter, nullptr);
|
||
canvas.saveLayer(SkCanvas::SaveLayerRec(nullptr, nullptr, image_filter.get(), 0));
|
||
canvas.restore();
|
||
},
|
||
[&](CSS::ResolvedBackdropFilter::HueRotate const& hue_rotate) {
|
||
float radians = AK::to_radians(hue_rotate.angle_degrees);
|
||
|
||
auto cosA = cos(radians);
|
||
auto sinA = sin(radians);
|
||
|
||
auto a00 = 0.213f + cosA * 0.787f - sinA * 0.213f;
|
||
auto a01 = 0.715f - cosA * 0.715f - sinA * 0.715f;
|
||
auto a02 = 0.072f - cosA * 0.072f + sinA * 0.928f;
|
||
auto a10 = 0.213f - cosA * 0.213f + sinA * 0.143f;
|
||
auto a11 = 0.715f + cosA * 0.285f + sinA * 0.140f;
|
||
auto a12 = 0.072f - cosA * 0.072f - sinA * 0.283f;
|
||
auto a20 = 0.213f - cosA * 0.213f - sinA * 0.787f;
|
||
auto a21 = 0.715f - cosA * 0.715f + sinA * 0.715f;
|
||
auto a22 = 0.072f + cosA * 0.928f + sinA * 0.072f;
|
||
|
||
float matrix[20] = {
|
||
a00, a01, a02, 0, 0,
|
||
a10, a11, a12, 0, 0,
|
||
a20, a21, a22, 0, 0,
|
||
0, 0, 0, 1, 0
|
||
};
|
||
|
||
auto color_filter = SkColorFilters::Matrix(matrix);
|
||
auto image_filter = SkImageFilters::ColorFilter(color_filter, nullptr);
|
||
canvas.saveLayer(SkCanvas::SaveLayerRec(nullptr, nullptr, image_filter.get(), 0));
|
||
canvas.restore();
|
||
},
|
||
[&](CSS::ResolvedBackdropFilter::DropShadow const&) {
|
||
dbgln("TODO: Implement drop-shadow() filter function!");
|
||
});
|
||
}
|
||
|
||
return CommandResult::Continue;
|
||
}
|
||
|
||
CommandResult DisplayListPlayerSkia::draw_rect(DrawRect const& command)
|
||
{
|
||
auto const& rect = command.rect;
|
||
auto& canvas = surface().canvas();
|
||
SkPaint paint;
|
||
paint.setStyle(SkPaint::kStroke_Style);
|
||
paint.setStrokeWidth(1);
|
||
paint.setColor(to_skia_color(command.color));
|
||
canvas.drawRect(to_skia_rect(rect), paint);
|
||
return CommandResult::Continue;
|
||
}
|
||
|
||
CommandResult DisplayListPlayerSkia::paint_radial_gradient(PaintRadialGradient const& command)
|
||
{
|
||
APPLY_PATH_CLIP_IF_NEEDED
|
||
|
||
auto const& linear_gradient_data = command.radial_gradient_data;
|
||
|
||
// FIXME: Account for repeat length
|
||
Vector<SkColor> colors;
|
||
colors.ensure_capacity(linear_gradient_data.color_stops.list.size());
|
||
Vector<SkScalar> positions;
|
||
positions.ensure_capacity(linear_gradient_data.color_stops.list.size());
|
||
auto const& list = linear_gradient_data.color_stops.list;
|
||
for (auto const& color_stop : linear_gradient_data.color_stops.list) {
|
||
// FIXME: Account for ColorStop::transition_hint
|
||
colors.append(to_skia_color(color_stop.color));
|
||
positions.append(color_stop.position);
|
||
}
|
||
|
||
auto const& rect = command.rect;
|
||
auto center = SkPoint::Make(command.center.x(), command.center.y());
|
||
auto radius = command.size.height();
|
||
auto shader = SkGradientShader::MakeRadial(center, radius, colors.data(), positions.data(), list.size(), SkTileMode::kClamp, 0);
|
||
|
||
SkPaint paint;
|
||
paint.setShader(shader);
|
||
surface().canvas().drawRect(to_skia_rect(rect), paint);
|
||
|
||
return CommandResult::Continue;
|
||
}
|
||
|
||
CommandResult DisplayListPlayerSkia::paint_conic_gradient(PaintConicGradient const& command)
|
||
{
|
||
APPLY_PATH_CLIP_IF_NEEDED
|
||
return CommandResult::Continue;
|
||
}
|
||
|
||
CommandResult DisplayListPlayerSkia::draw_triangle_wave(DrawTriangleWave const&)
|
||
{
|
||
return CommandResult::Continue;
|
||
}
|
||
|
||
void DisplayListPlayerSkia::prepare_to_execute(size_t)
|
||
{
|
||
}
|
||
|
||
CommandResult DisplayListPlayerSkia::sample_under_corners(SampleUnderCorners const& command)
|
||
{
|
||
auto rounded_rect = to_skia_rrect(command.border_rect, command.corner_radii);
|
||
auto& canvas = surface().canvas();
|
||
canvas.save();
|
||
auto clip_op = command.corner_clip == CornerClip::Inside ? SkClipOp::kDifference : SkClipOp::kIntersect;
|
||
canvas.clipRRect(rounded_rect, clip_op, true);
|
||
return CommandResult::Continue;
|
||
}
|
||
|
||
CommandResult DisplayListPlayerSkia::blit_corner_clipping(BlitCornerClipping const&)
|
||
{
|
||
auto& canvas = surface().canvas();
|
||
canvas.restore();
|
||
return CommandResult::Continue;
|
||
}
|
||
|
||
bool DisplayListPlayerSkia::would_be_fully_clipped_by_painter(Gfx::IntRect rect) const
|
||
{
|
||
return surface().canvas().quickReject(to_skia_rect(rect));
|
||
}
|
||
|
||
}
|