firka/flutter
firka/flutter
4
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

[Impeller] remove aiks color_filter and image_filter types. (flutter/engine#55654)

Browse Source 
Like the color_source, these classes are just copies of the DL types. Use the DLTypes instead.

Part of https://github.com/flutter/flutter/issues/142054
This commit is contained in:
Jonah Williams 2024-10-04 23:32:08 -05:00 committed by GitHub
parent 248c2a7062
commit fd33d17487
14 changed files with 388 additions and 1070 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

76
engine/src/flutter/impeller/display_list/canvas.cc
View File

@ -9,8 +9,10 @@
#include <utility>
#include "display_list/effects/dl_color_source.h"
#include "display_list/effects/dl_image_filter.h"
#include "flutter/fml/logging.h"
#include "flutter/fml/trace_event.h"
#include "impeller/display_list/color_filter.h"
#include "impeller/display_list/image_filter.h"
#include "impeller/display_list/skia_conversions.h"
#include "impeller/entity/contents/atlas_contents.h"
@ -41,12 +43,18 @@ static std::shared_ptr<Contents> CreateContentsForGeometryWithFilters(
// Attempt to apply the color filter on the CPU first.
// Note: This is not just an optimization; some color sources rely on
// CPU-applied color filters to behave properly.
bool needs_color_filter = paint.HasColorFilter();
if (needs_color_filter) {
auto color_filter = paint.GetColorFilter();
if (contents->ApplyColorFilter(color_filter->GetCPUColorFilterProc())) {
needs_color_filter = false;
bool needs_color_filter = paint.color_filter || paint.invert_colors;
if (needs_color_filter &&
contents->ApplyColorFilter([&](Color color) -> Color {
if (paint.color_filter) {
color = GetCPUColorFilterProc(paint.color_filter)(color);
}
if (paint.invert_colors) {
color = color.ApplyColorMatrix(kColorInversion);
}
return color;
})) {
needs_color_filter = false;
}
bool can_apply_mask_filter = geometry->CanApplyMaskFilter();
@ -57,24 +65,32 @@ static std::shared_ptr<Contents> CreateContentsForGeometryWithFilters(
// we need to be careful to only apply the color filter to the source
// colors. CreateMaskBlur is able to handle this case.
return paint.mask_blur_descriptor->CreateMaskBlur(
contents, needs_color_filter ? paint.GetColorFilter() : nullptr);
contents, needs_color_filter ? paint.color_filter : nullptr,
needs_color_filter ? paint.invert_colors : false);
}
std::shared_ptr<Contents> contents_copy = std::move(contents);
// Image input types will directly set their color filter,
// if any. See `TiledTextureContents.SetColorFilter`.
if (needs_color_filter &&
(!paint.color_source ||
paint.color_source->type() != flutter::DlColorSourceType::kImage)) {
std::shared_ptr<ColorFilter> color_filter = paint.GetColorFilter();
contents_copy = color_filter->WrapWithGPUColorFilter(
FilterInput::Make(std::move(contents_copy)),
if (paint.color_filter) {
contents_copy = WrapWithGPUColorFilter(
paint.color_filter, FilterInput::Make(std::move(contents_copy)),
ColorFilterContents::AbsorbOpacity::kYes);
}
if (paint.invert_colors) {
contents_copy =
WrapWithInvertColors(FilterInput::Make(contents_copy),
ColorFilterContents::AbsorbOpacity::kYes);
}
}
if (paint.image_filter) {
std::shared_ptr<FilterContents> filter = paint.image_filter->WrapInput(
FilterInput::Make(std::move(contents_copy)));
std::shared_ptr<FilterContents> filter = WrapInput(
paint.image_filter, FilterInput::Make(std::move(contents_copy)));
filter->SetRenderingMode(Entity::RenderingMode::kDirect);
return filter;
}
@ -471,12 +487,13 @@ bool Canvas::AttemptDrawBlurredRRect(const Rect& rect,
// For symmetrically mask blurred solid RRects, absorb the mask blur and use
// a faster SDF approximation.
Color rrect_color =
paint.HasColorFilter()
// Absorb the color filter, if any.
? paint.GetColorFilter()->GetCPUColorFilterProc()(paint.color)
: paint.color;
Color rrect_color = paint.color;
if (paint.invert_colors) {
rrect_color = rrect_color.ApplyColorMatrix(kColorInversion);
}
if (paint.color_filter) {
rrect_color = GetCPUColorFilterProc(paint.color_filter)(rrect_color);
}
Paint rrect_paint = {.mask_blur_descriptor = paint.mask_blur_descriptor};
@ -512,11 +529,13 @@ bool Canvas::AttemptDrawBlurredRRect(const Rect& rect,
render_bounds.Expand(paint.mask_blur_descriptor->sigma.sigma * 4.0);
}
// Defer the alpha, blend mode, and image filter to a separate layer.
SaveLayer({.color = Color::White().WithAlpha(rrect_color.alpha),
SaveLayer(
Paint{
.color = Color::White().WithAlpha(rrect_color.alpha),
.image_filter = paint.image_filter,
.blend_mode = paint.blend_mode,
.image_filter = paint.image_filter},
render_bounds, nullptr, ContentBoundsPromise::kContainsContents,
1u);
},
render_bounds, nullptr, ContentBoundsPromise::kContainsContents, 1u);
rrect_paint.color = rrect_color.WithAlpha(1);
} else {
rrect_paint.color = rrect_color;
@ -892,8 +911,9 @@ void Canvas::DrawVertices(const std::shared_ptr<VerticesGeometry>& vertices,
auto src_paint = paint;
src_paint.color = paint.color.WithAlpha(1.0);
std::shared_ptr<Contents> src_contents =
src_paint.CreateContentsForGeometry(vertices);
std::shared_ptr<ColorSourceContents> src_contents =
src_paint.CreateContents();
src_contents->SetGeometry(vertices);
// If the color source has an intrinsic size, then we use that to
// create the src contents as a simplification. Otherwise we use
@ -912,8 +932,8 @@ void Canvas::DrawVertices(const std::shared_ptr<VerticesGeometry>& vertices,
// NOLINTNEXTLINE(bugprone-unchecked-optional-access)
vertices->GetTextureCoordinateCoverge().value_or(cvg.value());
}
src_contents = src_paint.CreateContentsForGeometry(
Geometry::MakeRect(Rect::Round(src_coverage)));
src_contents = src_paint.CreateContents();
src_contents->SetGeometry(Geometry::MakeRect(Rect::Round(src_coverage)));
auto contents = std::make_shared<VerticesSimpleBlendContents>();
contents->SetBlendMode(blend_mode);
@ -1049,7 +1069,7 @@ std::optional<Rect> Canvas::GetLocalCoverageLimit() const {
void Canvas::SaveLayer(const Paint& paint,
std::optional<Rect> bounds,
const std::shared_ptr<ImageFilter>& backdrop_filter,
const flutter::DlImageFilter* backdrop_filter,
ContentBoundsPromise bounds_promise,
uint32_t total_content_depth,
bool can_distribute_opacity) {
@ -1125,10 +1145,10 @@ void Canvas::SaveLayer(const Paint& paint,
if (backdrop_filter) {
local_position = subpass_coverage.GetOrigin() - GetGlobalPassPosition();
Canvas::BackdropFilterProc backdrop_filter_proc =
[backdrop_filter = backdrop_filter->Clone()](
[backdrop_filter = backdrop_filter](
const FilterInput::Ref& input, const Matrix& effect_transform,
Entity::RenderingMode rendering_mode) {
auto filter = backdrop_filter->WrapInput(input);
auto filter = WrapInput(backdrop_filter, input);
filter->SetEffectTransform(effect_transform);
filter->SetRenderingMode(rendering_mode);
return filter;

4
engine/src/flutter/impeller/display_list/canvas.h
View File

@ -11,8 +11,8 @@
#include <optional>
#include <vector>
#include "display_list/effects/dl_image_filter.h"
#include "impeller/core/sampler_descriptor.h"
#include "impeller/display_list/image_filter.h"
#include "impeller/display_list/paint.h"
#include "impeller/entity/contents/atlas_contents.h"
#include "impeller/entity/entity.h"
@ -132,7 +132,7 @@ class Canvas {
void SaveLayer(
const Paint& paint,
std::optional<Rect> bounds = std::nullopt,
const std::shared_ptr<ImageFilter>& backdrop_filter = nullptr,
const flutter::DlImageFilter* backdrop_filter = nullptr,
ContentBoundsPromise bounds_promise = ContentBoundsPromise::kUnknown,
uint32_t total_content_depth = kMaxDepth,
bool can_distribute_opacity = false);

34
engine/src/flutter/impeller/display_list/canvas_unittests.cc
View File

@ -3,14 +3,9 @@
// found in the LICENSE file.
#include "flutter/testing/testing.h"
#include "impeller/display_list/aiks_context.h"
#include "impeller/display_list/aiks_unittests.h"
#include "impeller/display_list/canvas.h"
#include "impeller/geometry/geometry_asserts.h"
#include "impeller/geometry/path_builder.h"
// TODO(zanderso): https://github.com/flutter/flutter/issues/127701
// NOLINTBEGIN(bugprone-unchecked-optional-access)
namespace impeller {
namespace testing {
@ -98,34 +93,5 @@ TEST_P(AiksTest, CanvasCTMCanBeUpdated) {
Matrix::MakeTranslation({100.0, 100.0, 0.0}));
}
TEST_P(AiksTest, PaintWithFilters) {
// validate that a paint with a color filter "HasFilters", no other filters
// impact this setting.
Paint paint;
ASSERT_FALSE(paint.HasColorFilter());
paint.color_filter =
ColorFilter::MakeBlend(BlendMode::kSourceOver, Color::Blue());
ASSERT_TRUE(paint.HasColorFilter());
paint.image_filter = ImageFilter::MakeBlur(Sigma(1.0), Sigma(1.0),
FilterContents::BlurStyle::kNormal,
Entity::TileMode::kClamp);
ASSERT_TRUE(paint.HasColorFilter());
paint.mask_blur_descriptor = {};
ASSERT_TRUE(paint.HasColorFilter());
paint.color_filter = nullptr;
ASSERT_FALSE(paint.HasColorFilter());
}
} // namespace testing
} // namespace impeller
// NOLINTEND(bugprone-unchecked-optional-access)

226
engine/src/flutter/impeller/display_list/color_filter.cc
View File

@ -4,187 +4,99 @@
#include "impeller/display_list/color_filter.h"
#include <utility>
#include "display_list/effects/dl_color_filter.h"
#include "fml/logging.h"
#include "impeller/display_list/skia_conversions.h"
#include "impeller/entity/contents/filters/color_filter_contents.h"
#include "impeller/entity/contents/filters/filter_contents.h"
#include "impeller/entity/contents/filters/inputs/filter_input.h"
#include "impeller/geometry/color.h"
namespace impeller {
/*******************************************************************************
******* ColorFilter
******************************************************************************/
ColorFilter::ColorFilter() = default;
ColorFilter::~ColorFilter() = default;
std::shared_ptr<ColorFilter> ColorFilter::MakeBlend(BlendMode blend_mode,
Color color) {
return std::make_shared<BlendColorFilter>(blend_mode, color);
}
std::shared_ptr<ColorFilter> ColorFilter::MakeMatrix(ColorMatrix color_matrix) {
return std::make_shared<MatrixColorFilter>(color_matrix);
}
std::shared_ptr<ColorFilter> ColorFilter::MakeSrgbToLinear() {
return std::make_shared<SrgbToLinearColorFilter>();
}
std::shared_ptr<ColorFilter> ColorFilter::MakeLinearToSrgb() {
return std::make_shared<LinearToSrgbColorFilter>();
}
std::shared_ptr<ColorFilter> ColorFilter::MakeComposed(
const std::shared_ptr<ColorFilter>& outer,
const std::shared_ptr<ColorFilter>& inner) {
return std::make_shared<ComposedColorFilter>(outer, inner);
}
/*******************************************************************************
******* BlendColorFilter
******************************************************************************/
BlendColorFilter::BlendColorFilter(BlendMode blend_mode, Color color)
: blend_mode_(blend_mode), color_(color) {}
BlendColorFilter::~BlendColorFilter() = default;
std::shared_ptr<ColorFilterContents> BlendColorFilter::WrapWithGPUColorFilter(
std::shared_ptr<FilterInput> input,
ColorFilterContents::AbsorbOpacity absorb_opacity) const {
auto filter =
ColorFilterContents::MakeBlend(blend_mode_, {std::move(input)}, color_);
std::shared_ptr<ColorFilterContents> WrapWithInvertColors(
const std::shared_ptr<FilterInput>& input,
ColorFilterContents::AbsorbOpacity absorb_opacity) {
auto filter = ColorFilterContents::MakeColorMatrix({input}, kColorInversion);
filter->SetAbsorbOpacity(absorb_opacity);
return filter;
}
ColorFilter::ColorFilterProc BlendColorFilter::GetCPUColorFilterProc() const {
return [filter_blend_mode = blend_mode_, filter_color = color_](Color color) {
std::shared_ptr<ColorFilterContents> WrapWithGPUColorFilter(
const flutter::DlColorFilter* filter,
const std::shared_ptr<FilterInput>& input,
ColorFilterContents::AbsorbOpacity absorb_opacity) {
FML_DCHECK(filter);
switch (filter->type()) {
case flutter::DlColorFilterType::kBlend: {
const flutter::DlBlendColorFilter* blend_filter = filter->asBlend();
FML_DCHECK(blend_filter);
auto filter = ColorFilterContents::MakeBlend(
static_cast<BlendMode>(blend_filter->mode()), {input},
skia_conversions::ToColor(blend_filter->color()));
filter->SetAbsorbOpacity(absorb_opacity);
return filter;
}
case flutter::DlColorFilterType::kMatrix: {
const flutter::DlMatrixColorFilter* matrix_filter = filter->asMatrix();
FML_DCHECK(matrix_filter);
impeller::ColorMatrix color_matrix;
matrix_filter->get_matrix(color_matrix.array);
auto filter = ColorFilterContents::MakeColorMatrix({input}, color_matrix);
filter->SetAbsorbOpacity(absorb_opacity);
return filter;
}
case flutter::DlColorFilterType::kSrgbToLinearGamma: {
auto filter = ColorFilterContents::MakeSrgbToLinearFilter({input});
filter->SetAbsorbOpacity(absorb_opacity);
return filter;
}
case flutter::DlColorFilterType::kLinearToSrgbGamma: {
auto filter = ColorFilterContents::MakeLinearToSrgbFilter({input});
filter->SetAbsorbOpacity(absorb_opacity);
return filter;
}
}
FML_UNREACHABLE();
}
ColorFilterProc GetCPUColorFilterProc(const flutter::DlColorFilter* filter) {
FML_DCHECK(filter);
switch (filter->type()) {
case flutter::DlColorFilterType::kBlend: {
const flutter::DlBlendColorFilter* blend_filter = filter->asBlend();
FML_DCHECK(blend_filter);
return [filter_blend_mode = static_cast<BlendMode>(blend_filter->mode()),
filter_color = skia_conversions::ToColor(blend_filter->color())](
Color color) {
return color.Blend(filter_color, filter_blend_mode);
};
}
case flutter::DlColorFilterType::kMatrix: {
const flutter::DlMatrixColorFilter* matrix_filter = filter->asMatrix();
FML_DCHECK(matrix_filter);
std::shared_ptr<ColorFilter> BlendColorFilter::Clone() const {
return std::make_shared<BlendColorFilter>(*this);
}
/*******************************************************************************
******* MatrixColorFilter
******************************************************************************/
MatrixColorFilter::MatrixColorFilter(ColorMatrix color_matrix)
: color_matrix_(color_matrix) {}
MatrixColorFilter::~MatrixColorFilter() = default;
std::shared_ptr<ColorFilterContents> MatrixColorFilter::WrapWithGPUColorFilter(
std::shared_ptr<FilterInput> input,
ColorFilterContents::AbsorbOpacity absorb_opacity) const {
auto filter =
ColorFilterContents::MakeColorMatrix({std::move(input)}, color_matrix_);
filter->SetAbsorbOpacity(absorb_opacity);
return filter;
}
ColorFilter::ColorFilterProc MatrixColorFilter::GetCPUColorFilterProc() const {
return [color_matrix = color_matrix_](Color color) {
impeller::ColorMatrix color_matrix;
matrix_filter->get_matrix(color_matrix.array);
return [color_matrix = color_matrix](Color color) {
return color.ApplyColorMatrix(color_matrix);
};
}
std::shared_ptr<ColorFilter> MatrixColorFilter::Clone() const {
return std::make_shared<MatrixColorFilter>(*this);
}
/*******************************************************************************
******* SrgbToLinearColorFilter
******************************************************************************/
SrgbToLinearColorFilter::SrgbToLinearColorFilter() = default;
SrgbToLinearColorFilter::~SrgbToLinearColorFilter() = default;
std::shared_ptr<ColorFilterContents>
SrgbToLinearColorFilter::WrapWithGPUColorFilter(
std::shared_ptr<FilterInput> input,
ColorFilterContents::AbsorbOpacity absorb_opacity) const {
auto filter = ColorFilterContents::MakeSrgbToLinearFilter({std::move(input)});
filter->SetAbsorbOpacity(absorb_opacity);
return filter;
}
ColorFilter::ColorFilterProc SrgbToLinearColorFilter::GetCPUColorFilterProc()
const {
case flutter::DlColorFilterType::kSrgbToLinearGamma: {
return [](Color color) { return color.SRGBToLinear(); };
}
std::shared_ptr<ColorFilter> SrgbToLinearColorFilter::Clone() const {
return std::make_shared<SrgbToLinearColorFilter>(*this);
}
/*******************************************************************************
******* LinearToSrgbColorFilter
******************************************************************************/
LinearToSrgbColorFilter::LinearToSrgbColorFilter() = default;
LinearToSrgbColorFilter::~LinearToSrgbColorFilter() = default;
std::shared_ptr<ColorFilterContents>
LinearToSrgbColorFilter::WrapWithGPUColorFilter(
std::shared_ptr<FilterInput> input,
ColorFilterContents::AbsorbOpacity absorb_opacity) const {
auto filter = ColorFilterContents::MakeSrgbToLinearFilter({std::move(input)});
filter->SetAbsorbOpacity(absorb_opacity);
return filter;
}
ColorFilter::ColorFilterProc LinearToSrgbColorFilter::GetCPUColorFilterProc()
const {
case flutter::DlColorFilterType::kLinearToSrgbGamma: {
return [](Color color) { return color.LinearToSRGB(); };
}
std::shared_ptr<ColorFilter> LinearToSrgbColorFilter::Clone() const {
return std::make_shared<LinearToSrgbColorFilter>(*this);
}
/*******************************************************************************
******* ComposedColorFilter
******************************************************************************/
ComposedColorFilter::ComposedColorFilter(
const std::shared_ptr<ColorFilter>& outer,
const std::shared_ptr<ColorFilter>& inner)
: outer_(outer), inner_(inner) {}
ComposedColorFilter::~ComposedColorFilter() = default;
std::shared_ptr<ColorFilterContents>
ComposedColorFilter::WrapWithGPUColorFilter(
std::shared_ptr<FilterInput> input,
ColorFilterContents::AbsorbOpacity absorb_opacity) const {
std::shared_ptr<FilterContents> inner = inner_->WrapWithGPUColorFilter(
input, ColorFilterContents::AbsorbOpacity::kNo);
return outer_->WrapWithGPUColorFilter(FilterInput::Make(inner),
absorb_opacity);
}
// |ColorFilter|
ColorFilter::ColorFilterProc ComposedColorFilter::GetCPUColorFilterProc()
const {
return [inner = inner_, outer = outer_](Color color) {
auto inner_proc = inner->GetCPUColorFilterProc();
auto outer_proc = outer->GetCPUColorFilterProc();
return outer_proc(inner_proc(color));
};
}
// |ColorFilter|
std::shared_ptr<ColorFilter> ComposedColorFilter::Clone() const {
return std::make_shared<ComposedColorFilter>(outer_, inner_);
FML_UNREACHABLE();
}
} // namespace impeller

179
engine/src/flutter/impeller/display_list/color_filter.h
View File

@ -5,176 +5,37 @@
#ifndef FLUTTER_IMPELLER_DISPLAY_LIST_COLOR_FILTER_H_
#define FLUTTER_IMPELLER_DISPLAY_LIST_COLOR_FILTER_H_
#include "display_list/effects/dl_color_filter.h"
#include "impeller/entity/contents/filters/color_filter_contents.h"
#include "impeller/geometry/color.h"
namespace impeller {
struct Paint;
/// A color matrix which inverts colors.
// clang-format off
static const constexpr ColorMatrix kColorInversion = {
.array = {
-1.0, 0, 0, 1.0, 0, //
0, -1.0, 0, 1.0, 0, //
0, 0, -1.0, 1.0, 0, //
1.0, 1.0, 1.0, 1.0, 0 //
}
};
/*******************************************************************************
******* ColorFilter
******************************************************************************/
std::shared_ptr<ColorFilterContents> WrapWithInvertColors(
const std::shared_ptr<FilterInput>& input,
ColorFilterContents::AbsorbOpacity absorb_opacity);
std::shared_ptr<ColorFilterContents> WrapWithGPUColorFilter(
const flutter::DlColorFilter* filter,
const std::shared_ptr<FilterInput>& input,
ColorFilterContents::AbsorbOpacity absorb_opacity);
class ColorFilter {
public:
/// A procedure that filters a given unpremultiplied color to produce a new
/// unpremultiplied color.
using ColorFilterProc = std::function<Color(Color)>;
ColorFilter();
virtual ~ColorFilter();
static std::shared_ptr<ColorFilter> MakeBlend(BlendMode blend_mode,
Color color);
static std::shared_ptr<ColorFilter> MakeMatrix(ColorMatrix color_matrix);
static std::shared_ptr<ColorFilter> MakeSrgbToLinear();
static std::shared_ptr<ColorFilter> MakeLinearToSrgb();
static std::shared_ptr<ColorFilter> MakeComposed(
const std::shared_ptr<ColorFilter>& outer,
const std::shared_ptr<ColorFilter>& inner);
/// @brief Wraps the given filter input with a GPU-based filter that will
/// perform the color operation. The given input will first be
/// rendered to a texture and then filtered.
///
/// Note that this operation has no consideration for the original
/// geometry mask of the filter input. And the entire input texture is
/// treated as color information.
virtual std::shared_ptr<ColorFilterContents> WrapWithGPUColorFilter(
std::shared_ptr<FilterInput> input,
ColorFilterContents::AbsorbOpacity absorb_opacity) const = 0;
/// @brief Returns a function that can be used to filter unpremultiplied
/// Impeller Colors on the CPU.
virtual ColorFilterProc GetCPUColorFilterProc() const = 0;
virtual std::shared_ptr<ColorFilter> Clone() const = 0;
};
/*******************************************************************************
******* BlendColorFilter
******************************************************************************/
class BlendColorFilter final : public ColorFilter {
public:
BlendColorFilter(BlendMode blend_mode, Color color);
~BlendColorFilter() override;
// |ColorFilter|
std::shared_ptr<ColorFilterContents> WrapWithGPUColorFilter(
std::shared_ptr<FilterInput> input,
ColorFilterContents::AbsorbOpacity absorb_opacity) const override;
// |ColorFilter|
ColorFilterProc GetCPUColorFilterProc() const override;
// |ColorFilter|
std::shared_ptr<ColorFilter> Clone() const override;
private:
BlendMode blend_mode_;
Color color_;
};
/*******************************************************************************
******* MatrixColorFilter
******************************************************************************/
class MatrixColorFilter final : public ColorFilter {
public:
explicit MatrixColorFilter(ColorMatrix color_matrix);
~MatrixColorFilter() override;
// |ColorFilter|
std::shared_ptr<ColorFilterContents> WrapWithGPUColorFilter(
std::shared_ptr<FilterInput> input,
ColorFilterContents::AbsorbOpacity absorb_opacity) const override;
// |ColorFilter|
ColorFilterProc GetCPUColorFilterProc() const override;
// |ColorFilter|
std::shared_ptr<ColorFilter> Clone() const override;
private:
ColorMatrix color_matrix_;
};
/*******************************************************************************
******* SrgbToLinearColorFilter
******************************************************************************/
class SrgbToLinearColorFilter final : public ColorFilter {
public:
explicit SrgbToLinearColorFilter();
~SrgbToLinearColorFilter() override;
// |ColorFilter|
std::shared_ptr<ColorFilterContents> WrapWithGPUColorFilter(
std::shared_ptr<FilterInput> input,
ColorFilterContents::AbsorbOpacity absorb_opacity) const override;
// |ColorFilter|
ColorFilterProc GetCPUColorFilterProc() const override;
// |ColorFilter|
std::shared_ptr<ColorFilter> Clone() const override;
};
/*******************************************************************************
******* LinearToSrgbColorFilter
******************************************************************************/
class LinearToSrgbColorFilter final : public ColorFilter {
public:
explicit LinearToSrgbColorFilter();
~LinearToSrgbColorFilter() override;
// |ColorFilter|
std::shared_ptr<ColorFilterContents> WrapWithGPUColorFilter(
std::shared_ptr<FilterInput> input,
ColorFilterContents::AbsorbOpacity absorb_opacity) const override;
// |ColorFilter|
ColorFilterProc GetCPUColorFilterProc() const override;
// |ColorFilter|
std::shared_ptr<ColorFilter> Clone() const override;
};
/// @brief Applies color filters as f(g(x)), where x is the input color.
class ComposedColorFilter final : public ColorFilter {
public:
ComposedColorFilter(const std::shared_ptr<ColorFilter>& outer,
const std::shared_ptr<ColorFilter>& inner);
~ComposedColorFilter() override;
// |ColorFilter|
std::shared_ptr<ColorFilterContents> WrapWithGPUColorFilter(
std::shared_ptr<FilterInput> input,
ColorFilterContents::AbsorbOpacity absorb_opacity) const override;
// |ColorFilter|
ColorFilterProc GetCPUColorFilterProc() const override;
// |ColorFilter|
std::shared_ptr<ColorFilter> Clone() const override;
private:
std::shared_ptr<ColorFilter> outer_;
std::shared_ptr<ColorFilter> inner_;
};
ColorFilterProc GetCPUColorFilterProc(const flutter::DlColorFilter* filter);
} // namespace impeller

199
engine/src/flutter/impeller/display_list/dl_dispatcher.cc
View File

@ -114,70 +114,6 @@ struct DepthWatcher {
#define UNIMPLEMENTED \
FML_DLOG(ERROR) << "Unimplemented detail in " << __FUNCTION__;
static BlendMode ToBlendMode(flutter::DlBlendMode mode) {
switch (mode) {
case flutter::DlBlendMode::kClear:
return BlendMode::kClear;
case flutter::DlBlendMode::kSrc:
return BlendMode::kSource;
case flutter::DlBlendMode::kDst:
return BlendMode::kDestination;
case flutter::DlBlendMode::kSrcOver:
return BlendMode::kSourceOver;
case flutter::DlBlendMode::kDstOver:
return BlendMode::kDestinationOver;
case flutter::DlBlendMode::kSrcIn:
return BlendMode::kSourceIn;
case flutter::DlBlendMode::kDstIn:
return BlendMode::kDestinationIn;
case flutter::DlBlendMode::kSrcOut:
return BlendMode::kSourceOut;
case flutter::DlBlendMode::kDstOut:
return BlendMode::kDestinationOut;
case flutter::DlBlendMode::kSrcATop:
return BlendMode::kSourceATop;
case flutter::DlBlendMode::kDstATop:
return BlendMode::kDestinationATop;
case flutter::DlBlendMode::kXor:
return BlendMode::kXor;
case flutter::DlBlendMode::kPlus:
return BlendMode::kPlus;
case flutter::DlBlendMode::kModulate:
return BlendMode::kModulate;
case flutter::DlBlendMode::kScreen:
return BlendMode::kScreen;
case flutter::DlBlendMode::kOverlay:
return BlendMode::kOverlay;
case flutter::DlBlendMode::kDarken:
return BlendMode::kDarken;
case flutter::DlBlendMode::kLighten:
return BlendMode::kLighten;
case flutter::DlBlendMode::kColorDodge:
return BlendMode::kColorDodge;
case flutter::DlBlendMode::kColorBurn:
return BlendMode::kColorBurn;
case flutter::DlBlendMode::kHardLight:
return BlendMode::kHardLight;
case flutter::DlBlendMode::kSoftLight:
return BlendMode::kSoftLight;
case flutter::DlBlendMode::kDifference:
return BlendMode::kDifference;
case flutter::DlBlendMode::kExclusion:
return BlendMode::kExclusion;
case flutter::DlBlendMode::kMultiply:
return BlendMode::kMultiply;
case flutter::DlBlendMode::kHue:
return BlendMode::kHue;
case flutter::DlBlendMode::kSaturation:
return BlendMode::kSaturation;
case flutter::DlBlendMode::kColor:
return BlendMode::kColor;
case flutter::DlBlendMode::kLuminosity:
return BlendMode::kLuminosity;
}
FML_UNREACHABLE();
}
static impeller::SamplerDescriptor ToSamplerDescriptor(
const flutter::DlFilterMode options) {
impeller::SamplerDescriptor desc;
@ -289,37 +225,11 @@ void DlDispatcherBase::setColorSource(const flutter::DlColorSource* source) {
}
}
static std::shared_ptr<ColorFilter> ToColorFilter(
const flutter::DlColorFilter* filter) {
if (filter == nullptr) {
return nullptr;
}
switch (filter->type()) {
case flutter::DlColorFilterType::kBlend: {
auto dl_blend = filter->asBlend();
auto blend_mode = ToBlendMode(dl_blend->mode());
auto color = skia_conversions::ToColor(dl_blend->color());
return ColorFilter::MakeBlend(blend_mode, color);
}
case flutter::DlColorFilterType::kMatrix: {
const flutter::DlMatrixColorFilter* dl_matrix = filter->asMatrix();
impeller::ColorMatrix color_matrix;
dl_matrix->get_matrix(color_matrix.array);
return ColorFilter::MakeMatrix(color_matrix);
}
case flutter::DlColorFilterType::kSrgbToLinearGamma:
return ColorFilter::MakeSrgbToLinear();
case flutter::DlColorFilterType::kLinearToSrgbGamma:
return ColorFilter::MakeLinearToSrgb();
}
return nullptr;
}
// |flutter::DlOpReceiver|
void DlDispatcherBase::setColorFilter(const flutter::DlColorFilter* filter) {
AUTO_DEPTH_WATCHER(0u);
paint_.color_filter = ToColorFilter(filter);
paint_.color_filter = filter;
}
// |flutter::DlOpReceiver|
@ -333,7 +243,7 @@ void DlDispatcherBase::setInvertColors(bool invert) {
void DlDispatcherBase::setBlendMode(flutter::DlBlendMode dl_mode) {
AUTO_DEPTH_WATCHER(0u);
paint_.blend_mode = ToBlendMode(dl_mode);
paint_.blend_mode = skia_conversions::ToBlendMode(dl_mode);
}
static FilterContents::BlurStyle ToBlurStyle(flutter::DlBlurStyle blur_style) {
@ -372,102 +282,11 @@ void DlDispatcherBase::setMaskFilter(const flutter::DlMaskFilter* filter) {
}
}
static std::shared_ptr<ImageFilter> ToImageFilter(
const flutter::DlImageFilter* filter) {
if (filter == nullptr) {
return nullptr;
}
switch (filter->type()) {
case flutter::DlImageFilterType::kBlur: {
auto blur = filter->asBlur();
auto sigma_x = Sigma(blur->sigma_x());
auto sigma_y = Sigma(blur->sigma_y());
auto tile_mode = static_cast<Entity::TileMode>(blur->tile_mode());
return ImageFilter::MakeBlur(
sigma_x, sigma_y, FilterContents::BlurStyle::kNormal, tile_mode);
}
case flutter::DlImageFilterType::kDilate: {
auto dilate = filter->asDilate();
FML_DCHECK(dilate);
if (dilate->radius_x() < 0 || dilate->radius_y() < 0) {
return nullptr;
}
auto radius_x = Radius(dilate->radius_x());
auto radius_y = Radius(dilate->radius_y());
return ImageFilter::MakeDilate(radius_x, radius_y);
}
case flutter::DlImageFilterType::kErode: {
auto erode = filter->asErode();
FML_DCHECK(erode);
if (erode->radius_x() < 0 || erode->radius_y() < 0) {
return nullptr;
}
auto radius_x = Radius(erode->radius_x());
auto radius_y = Radius(erode->radius_y());
return ImageFilter::MakeErode(radius_x, radius_y);
}
case flutter::DlImageFilterType::kMatrix: {
auto matrix_filter = filter->asMatrix();
FML_DCHECK(matrix_filter);
auto matrix = skia_conversions::ToMatrix(matrix_filter->matrix());
auto desc =
skia_conversions::ToSamplerDescriptor(matrix_filter->sampling());
return ImageFilter::MakeMatrix(matrix, desc);
}
case flutter::DlImageFilterType::kCompose: {
auto compose = filter->asCompose();
FML_DCHECK(compose);
auto outer_dl_filter = compose->outer();
auto inner_dl_filter = compose->inner();
auto outer_filter = ToImageFilter(outer_dl_filter.get());
auto inner_filter = ToImageFilter(inner_dl_filter.get());
if (!outer_filter) {
return inner_filter;
}
if (!inner_filter) {
return outer_filter;
}
FML_DCHECK(outer_filter && inner_filter);
return ImageFilter::MakeCompose(*inner_filter, *outer_filter);
}
case flutter::DlImageFilterType::kColorFilter: {
auto color_filter_image_filter = filter->asColorFilter();
FML_DCHECK(color_filter_image_filter);
auto color_filter =
ToColorFilter(color_filter_image_filter->color_filter().get());
if (!color_filter) {
return nullptr;
}
// When color filters are used as image filters, set the color filter's
// "absorb opacity" flag to false. For image filters, the snapshot
// opacity needs to be deferred until the result of the filter chain is
// being blended with the layer.
return ImageFilter::MakeFromColorFilter(*color_filter);
}
case flutter::DlImageFilterType::kLocalMatrix: {
auto local_matrix_filter = filter->asLocalMatrix();
FML_DCHECK(local_matrix_filter);
auto internal_filter = local_matrix_filter->image_filter();
FML_DCHECK(internal_filter);
auto image_filter = ToImageFilter(internal_filter.get());
if (!image_filter) {
return nullptr;
}
auto matrix = skia_conversions::ToMatrix(local_matrix_filter->matrix());
return ImageFilter::MakeLocalMatrix(matrix, *image_filter);
}
}
}
// |flutter::DlOpReceiver|
void DlDispatcherBase::setImageFilter(const flutter::DlImageFilter* filter) {
AUTO_DEPTH_WATCHER(0u);
paint_.image_filter = ToImageFilter(filter);
paint_.image_filter = filter;
}
// |flutter::DlOpReceiver|
@ -497,8 +316,7 @@ void DlDispatcherBase::saveLayer(const DlRect& bounds,
}
GetCanvas().SaveLayer(
paint, impeller_bounds, ToImageFilter(backdrop), promise,
total_content_depth,
paint, impeller_bounds, backdrop, promise, total_content_depth,
// Unbounded content can still have user specified bounds that require a
// saveLayer to be created to perform the clip.
options.can_distribute_opacity() && !options.content_is_unbounded());
@ -674,7 +492,7 @@ void DlDispatcherBase::drawColor(flutter::DlColor color,
Paint paint;
paint.color = skia_conversions::ToColor(color);
paint.blend_mode = ToBlendMode(dl_mode);
paint.blend_mode = skia_conversions::ToBlendMode(dl_mode);
GetCanvas().DrawPaint(paint);
}
@ -950,7 +768,7 @@ void DlDispatcherBase::drawAtlas(const sk_sp<flutter::DlImage> atlas,
tex, //
colors, //
static_cast<size_t>(count), //
ToBlendMode(mode), //
skia_conversions::ToBlendMode(mode), //
skia_conversions::ToSamplerDescriptor(sampling), //
skia_conversions::ToRect(cull_rect) //
);
@ -1117,7 +935,8 @@ static bool RequiresReadbackForBlends(
const ContentContext& renderer,
flutter::DlBlendMode max_root_blend_mode) {
return !renderer.GetDeviceCapabilities().SupportsFramebufferFetch() &&
ToBlendMode(max_root_blend_mode) > Entity::kLastPipelineBlendMode;
skia_conversions::ToBlendMode(max_root_blend_mode) >
Entity::kLastPipelineBlendMode;
}
CanvasDlDispatcher::CanvasDlDispatcher(ContentContext& renderer,
@ -1143,7 +962,7 @@ void CanvasDlDispatcher::drawVertices(
GetCanvas().DrawVertices(
std::make_shared<DlVerticesGeometry>(vertices, renderer_),
ToBlendMode(dl_mode), paint_);
skia_conversions::ToBlendMode(dl_mode), paint_);
}
//// Text Frame Dispatcher

263
engine/src/flutter/impeller/display_list/image_filter.cc
View File

@ -3,206 +3,107 @@
// found in the LICENSE file.
#include "impeller/display_list/image_filter.h"
#include "fml/logging.h"
#include "impeller/display_list/color_filter.h"
#include "impeller/display_list/skia_conversions.h"
#include "impeller/entity/contents/filters/color_filter_contents.h"
#include "impeller/entity/contents/filters/filter_contents.h"
#include "impeller/entity/contents/filters/inputs/filter_input.h"
namespace impeller {
/*******************************************************************************
******* ImageFilter
******************************************************************************/
std::shared_ptr<FilterContents> WrapInput(const flutter::DlImageFilter* filter,
const FilterInput::Ref& input) {
FML_DCHECK(filter);
ImageFilter::ImageFilter() = default;
switch (filter->type()) {
case flutter::DlImageFilterType::kBlur: {
auto blur_filter = filter->asBlur();
FML_DCHECK(blur_filter);
ImageFilter::~ImageFilter() = default;
std::shared_ptr<ImageFilter> ImageFilter::MakeBlur(
Sigma sigma_x,
Sigma sigma_y,
FilterContents::BlurStyle blur_style,
Entity::TileMode tile_mode) {
return std::make_shared<BlurImageFilter>(sigma_x, sigma_y, blur_style,
tile_mode);
return FilterContents::MakeGaussianBlur(
input, //
Sigma(blur_filter->sigma_x()), //
Sigma(blur_filter->sigma_y()), //
static_cast<Entity::TileMode>(blur_filter->tile_mode()), //
FilterContents::BlurStyle::kNormal //
);
}
case flutter::DlImageFilterType::kDilate: {
auto dilate_filter = filter->asDilate();
FML_DCHECK(dilate_filter);
std::shared_ptr<ImageFilter> ImageFilter::MakeDilate(Radius radius_x,
Radius radius_y) {
return std::make_shared<DilateImageFilter>(radius_x, radius_y);
return FilterContents::MakeMorphology(
input, //
Radius(dilate_filter->radius_x()), //
Radius(dilate_filter->radius_y()), //
FilterContents::MorphType::kDilate //
);
}
case flutter::DlImageFilterType::kErode: {
auto erode_filter = filter->asErode();
FML_DCHECK(erode_filter);
std::shared_ptr<ImageFilter> ImageFilter::MakeErode(Radius radius_x,
Radius radius_y) {
return std::make_shared<ErodeImageFilter>(radius_x, radius_y);
return FilterContents::MakeMorphology(
input, //
Radius(erode_filter->radius_x()), //
Radius(erode_filter->radius_y()), //
FilterContents::MorphType::kErode //
);
}
case flutter::DlImageFilterType::kMatrix: {
auto matrix_filter = filter->asMatrix();
FML_DCHECK(matrix_filter);
std::shared_ptr<ImageFilter> ImageFilter::MakeMatrix(
const Matrix& matrix,
SamplerDescriptor sampler_descriptor) {
return std::make_shared<MatrixImageFilter>(matrix,
std::move(sampler_descriptor));
auto matrix = skia_conversions::ToMatrix(matrix_filter->matrix());
auto desc =
skia_conversions::ToSamplerDescriptor(matrix_filter->sampling());
return FilterContents::MakeMatrixFilter(input, matrix, desc);
}
case flutter::DlImageFilterType::kLocalMatrix: {
auto matrix_filter = filter->asLocalMatrix();
FML_DCHECK(matrix_filter);
FML_DCHECK(matrix_filter->image_filter());
std::shared_ptr<ImageFilter> ImageFilter::MakeCompose(
const ImageFilter& inner,
const ImageFilter& outer) {
return std::make_shared<ComposeImageFilter>(inner, outer);
}
std::shared_ptr<ImageFilter> ImageFilter::MakeFromColorFilter(
const ColorFilter& color_filter) {
return std::make_shared<ColorImageFilter>(color_filter);
}
std::shared_ptr<ImageFilter> ImageFilter::MakeLocalMatrix(
const Matrix& matrix,
const ImageFilter& internal_filter) {
return std::make_shared<LocalMatrixImageFilter>(matrix, internal_filter);
}
std::shared_ptr<FilterContents> ImageFilter::GetFilterContents() const {
return WrapInput(FilterInput::Make(Rect()));
}
/*******************************************************************************
******* BlurImageFilter
******************************************************************************/
BlurImageFilter::BlurImageFilter(Sigma sigma_x,
Sigma sigma_y,
FilterContents::BlurStyle blur_style,
Entity::TileMode tile_mode)
: sigma_x_(sigma_x),
sigma_y_(sigma_y),
blur_style_(blur_style),
tile_mode_(tile_mode) {}
BlurImageFilter::~BlurImageFilter() = default;
std::shared_ptr<FilterContents> BlurImageFilter::WrapInput(
const FilterInput::Ref& input) const {
return FilterContents::MakeGaussianBlur(input, sigma_x_, sigma_y_, tile_mode_,
blur_style_);
}
std::shared_ptr<ImageFilter> BlurImageFilter::Clone() const {
return std::make_shared<BlurImageFilter>(*this);
}
/*******************************************************************************
******* DilateImageFilter
******************************************************************************/
DilateImageFilter::DilateImageFilter(Radius radius_x, Radius radius_y)
: radius_x_(radius_x), radius_y_(radius_y) {}
DilateImageFilter::~DilateImageFilter() = default;
std::shared_ptr<FilterContents> DilateImageFilter::WrapInput(
const FilterInput::Ref& input) const {
return FilterContents::MakeMorphology(input, radius_x_, radius_y_,
FilterContents::MorphType::kDilate);
}
std::shared_ptr<ImageFilter> DilateImageFilter::Clone() const {
return std::make_shared<DilateImageFilter>(*this);
}
/*******************************************************************************
******* ErodeImageFilter
******************************************************************************/
ErodeImageFilter::ErodeImageFilter(Radius radius_x, Radius radius_y)
: radius_x_(radius_x), radius_y_(radius_y) {}
ErodeImageFilter::~ErodeImageFilter() = default;
std::shared_ptr<FilterContents> ErodeImageFilter::WrapInput(
const FilterInput::Ref& input) const {
return FilterContents::MakeMorphology(input, radius_x_, radius_y_,
FilterContents::MorphType::kErode);
}
std::shared_ptr<ImageFilter> ErodeImageFilter::Clone() const {
return std::make_shared<ErodeImageFilter>(*this);
}
/*******************************************************************************
******* MatrixImageFilter
******************************************************************************/
MatrixImageFilter::MatrixImageFilter(const Matrix& matrix,
SamplerDescriptor sampler_descriptor)
: matrix_(matrix), sampler_descriptor_(std::move(sampler_descriptor)) {}
MatrixImageFilter::~MatrixImageFilter() = default;
std::shared_ptr<FilterContents> MatrixImageFilter::WrapInput(
const FilterInput::Ref& input) const {
return FilterContents::MakeMatrixFilter(input, matrix_, sampler_descriptor_);
}
std::shared_ptr<ImageFilter> MatrixImageFilter::Clone() const {
return std::make_shared<MatrixImageFilter>(*this);
}
/*******************************************************************************
******* ComposeImageFilter
******************************************************************************/
ComposeImageFilter::ComposeImageFilter(const ImageFilter& inner,
const ImageFilter& outer)
: inner_(inner.Clone()), outer_(outer.Clone()) {}
ComposeImageFilter::~ComposeImageFilter() = default;
std::shared_ptr<FilterContents> ComposeImageFilter::WrapInput(
const FilterInput::Ref& input) const {
return outer_->WrapInput(FilterInput::Make(inner_->WrapInput(input)));
}
std::shared_ptr<ImageFilter> ComposeImageFilter::Clone() const {
return std::make_shared<ComposeImageFilter>(*this);
}
/*******************************************************************************
******* ColorImageFilter
******************************************************************************/
ColorImageFilter::ColorImageFilter(const ColorFilter& color_filter)
: color_filter_(color_filter.Clone()) {}
ColorImageFilter::~ColorImageFilter() = default;
std::shared_ptr<FilterContents> ColorImageFilter::WrapInput(
const FilterInput::Ref& input) const {
return color_filter_->WrapWithGPUColorFilter(
input, ColorFilterContents::AbsorbOpacity::kNo);
}
std::shared_ptr<ImageFilter> ColorImageFilter::Clone() const {
return std::make_shared<ColorImageFilter>(*this);
}
/*******************************************************************************
******* LocalMatrixImageFilter
******************************************************************************/
LocalMatrixImageFilter::LocalMatrixImageFilter(
const Matrix& matrix,
const ImageFilter& internal_filter)
: matrix_(matrix), internal_filter_(internal_filter.Clone()) {}
LocalMatrixImageFilter::~LocalMatrixImageFilter() = default;
std::shared_ptr<FilterContents> LocalMatrixImageFilter::WrapInput(
const FilterInput::Ref& input) const {
auto matrix = skia_conversions::ToMatrix(matrix_filter->matrix());
return FilterContents::MakeLocalMatrixFilter(
FilterInput::Make(internal_filter_->WrapInput(input)), matrix_);
FilterInput::Make(
WrapInput(matrix_filter->image_filter().get(), input)),
matrix);
}
case flutter::DlImageFilterType::kColorFilter: {
auto image_color_filter = filter->asColorFilter();
FML_DCHECK(image_color_filter);
auto color_filter = image_color_filter->color_filter();
FML_DCHECK(color_filter);
std::shared_ptr<ImageFilter> LocalMatrixImageFilter::Clone() const {
return std::make_shared<LocalMatrixImageFilter>(*this);
// When color filters are used as image filters, set the color filter's
// "absorb opacity" flag to false. For image filters, the snapshot
// opacity needs to be deferred until the result of the filter chain is
// being blended with the layer.
return WrapWithGPUColorFilter(color_filter.get(), input,
ColorFilterContents::AbsorbOpacity::kNo);
}
case flutter::DlImageFilterType::kCompose: {
auto compose = filter->asCompose();
FML_DCHECK(compose);
auto outer_dl_filter = compose->outer();
auto inner_dl_filter = compose->inner();
if (!outer_dl_filter) {
return WrapInput(inner_dl_filter.get(), input);
}
if (!inner_dl_filter) {
return WrapInput(outer_dl_filter.get(), input);
}
FML_DCHECK(outer_dl_filter && inner_dl_filter);
return WrapInput(
outer_dl_filter.get(),
FilterInput::Make(WrapInput(inner_dl_filter.get(), input)));
}
}
FML_UNREACHABLE();
}
} // namespace impeller

224
engine/src/flutter/impeller/display_list/image_filter.h
View File

@ -5,233 +5,15 @@
#ifndef FLUTTER_IMPELLER_DISPLAY_LIST_IMAGE_FILTER_H_
#define FLUTTER_IMPELLER_DISPLAY_LIST_IMAGE_FILTER_H_
#include "impeller/core/sampler_descriptor.h"
#include "impeller/display_list/color_filter.h"
#include "display_list/effects/dl_image_filter.h"
#include "impeller/entity/contents/filters/filter_contents.h"
#include "impeller/entity/entity.h"
#include "impeller/geometry/matrix.h"
#include "impeller/geometry/sigma.h"
namespace impeller {
struct Paint;
/*******************************************************************************
******* ImageFilter
******************************************************************************/
class ImageFilter {
public:
ImageFilter();
virtual ~ImageFilter();
static std::shared_ptr<ImageFilter> MakeBlur(
Sigma sigma_x,
Sigma sigma_y,
FilterContents::BlurStyle blur_style,
Entity::TileMode tile_mode);
static std::shared_ptr<ImageFilter> MakeDilate(Radius radius_x,
Radius radius_y);
static std::shared_ptr<ImageFilter> MakeErode(Radius radius_x,
Radius radius_y);
static std::shared_ptr<ImageFilter> MakeMatrix(
const Matrix& matrix,
SamplerDescriptor sampler_descriptor);
static std::shared_ptr<ImageFilter> MakeCompose(const ImageFilter& inner,
const ImageFilter& outer);
static std::shared_ptr<ImageFilter> MakeFromColorFilter(
const ColorFilter& color_filter);
static std::shared_ptr<ImageFilter> MakeLocalMatrix(
const Matrix& matrix,
const ImageFilter& internal_filter);
/// @brief Generate a new FilterContents using this filter's configuration.
///
/// This is the same as WrapInput, except no input is set. The input
/// for the filter chain can be set later using.
/// FilterContents::SetLeafInputs().
///
/// @see `FilterContents::SetLeafInputs`
std::shared_ptr<FilterContents> GetFilterContents() const;
/// @brief Wraps the given filter input with a GPU-based image filter.
virtual std::shared_ptr<FilterContents> WrapInput(
const FilterInput::Ref& input) const = 0;
virtual std::shared_ptr<ImageFilter> Clone() const = 0;
virtual int GetRequiredMipCount() const { return 1; }
};
/*******************************************************************************
******* BlurImageFilter
******************************************************************************/
class BlurImageFilter : public ImageFilter {
public:
BlurImageFilter(Sigma sigma_x,
Sigma sigma_y,
FilterContents::BlurStyle blur_style,
Entity::TileMode tile_mode);
~BlurImageFilter() override;
// |ImageFilter|
std::shared_ptr<FilterContents> WrapInput(
const FilterInput::Ref& input) const override;
// |ImageFilter|
std::shared_ptr<ImageFilter> Clone() const override;
int GetRequiredMipCount() const override { return 4; }
private:
Sigma sigma_x_;
Sigma sigma_y_;
FilterContents::BlurStyle blur_style_;
Entity::TileMode tile_mode_;
};
/*******************************************************************************
******* DilateImageFilter
******************************************************************************/
class DilateImageFilter : public ImageFilter {
public:
DilateImageFilter(Radius radius_x, Radius radius_y);
~DilateImageFilter() override;
// |ImageFilter|
std::shared_ptr<FilterContents> WrapInput(
const FilterInput::Ref& input) const override;
// |ImageFilter|
std::shared_ptr<ImageFilter> Clone() const override;
private:
Radius radius_x_;
Radius radius_y_;
};
/*******************************************************************************
******* ErodeImageFilter
******************************************************************************/
class ErodeImageFilter : public ImageFilter {
public:
ErodeImageFilter(Radius radius_x, Radius radius_y);
~ErodeImageFilter() override;
// |ImageFilter|
std::shared_ptr<FilterContents> WrapInput(
const FilterInput::Ref& input) const override;
// |ImageFilter|
std::shared_ptr<ImageFilter> Clone() const override;
private:
Radius radius_x_;
Radius radius_y_;
};
/*******************************************************************************
******* MatrixImageFilter
******************************************************************************/
class MatrixImageFilter : public ImageFilter {
public:
MatrixImageFilter(const Matrix& matrix, SamplerDescriptor sampler_descriptor);
~MatrixImageFilter() override;
// |ImageFilter|
std::shared_ptr<FilterContents> WrapInput(
const FilterInput::Ref& input) const override;
// |ImageFilter|
std::shared_ptr<ImageFilter> Clone() const override;
const Matrix& GetMatrix() const { return matrix_; }
private:
Matrix matrix_;
SamplerDescriptor sampler_descriptor_;
};
/*******************************************************************************
******* ComposeImageFilter
******************************************************************************/
class ComposeImageFilter : public ImageFilter {
public:
ComposeImageFilter(const ImageFilter& inner, const ImageFilter& outer);
~ComposeImageFilter() override;
// |ImageFilter|
std::shared_ptr<FilterContents> WrapInput(
const FilterInput::Ref& input) const override;
// |ImageFilter|
std::shared_ptr<ImageFilter> Clone() const override;
private:
std::shared_ptr<ImageFilter> inner_;
std::shared_ptr<ImageFilter> outer_;
};
/*******************************************************************************
******* ColorImageFilter
******************************************************************************/
class ColorImageFilter : public ImageFilter {
public:
explicit ColorImageFilter(const ColorFilter& color_filter);
~ColorImageFilter() override;
// |ImageFilter|
std::shared_ptr<FilterContents> WrapInput(
const FilterInput::Ref& input) const override;
// |ImageFilter|
std::shared_ptr<ImageFilter> Clone() const override;
private:
std::shared_ptr<ColorFilter> color_filter_;
};
/*******************************************************************************
******* LocalMatrixImageFilter
******************************************************************************/
class LocalMatrixImageFilter : public ImageFilter {
public:
LocalMatrixImageFilter(const Matrix& matrix,
const ImageFilter& internal_filter);
~LocalMatrixImageFilter() override;
// |ImageFilter|
std::shared_ptr<FilterContents> WrapInput(
const FilterInput::Ref& input) const override;
// |ImageFilter|
std::shared_ptr<ImageFilter> Clone() const override;
private:
Matrix matrix_;
std::shared_ptr<ImageFilter> internal_filter_;
};
std::shared_ptr<FilterContents> WrapInput(const flutter::DlImageFilter* filter,
const FilterInput::Ref& input);
} // namespace impeller

123
engine/src/flutter/impeller/display_list/paint.cc
View File

@ -6,9 +6,11 @@
#include <memory>
#include "display_list/effects/dl_color_filter.h"
#include "display_list/effects/dl_color_source.h"
#include "display_list/geometry/dl_path.h"
#include "fml/logging.h"
#include "impeller/display_list/color_filter.h"
#include "impeller/display_list/skia_conversions.h"
#include "impeller/entity/contents/color_source_contents.h"
#include "impeller/entity/contents/conical_gradient_contents.h"
@ -31,18 +33,6 @@ using DlRect = flutter::DlRect;
using DlIRect = flutter::DlIRect;
using DlPath = flutter::DlPath;
/// A color matrix which inverts colors.
// clang-format off
constexpr ColorMatrix kColorInversion = {
.array = {
-1.0, 0, 0, 1.0, 0, //
0, -1.0, 0, 1.0, 0, //
0, 0, -1.0, 1.0, 0, //
1.0, 1.0, 1.0, 1.0, 0 //
}
};
// clang-format on
std::shared_ptr<ColorSourceContents> Paint::CreateContents() const {
if (color_source == nullptr) {
auto contents = std::make_shared<SolidColorContents>();
@ -194,11 +184,26 @@ std::shared_ptr<ColorSourceContents> Paint::CreateContents() const {
contents->SetTileModes(x_tile_mode, y_tile_mode);
contents->SetSamplerDescriptor(sampler_descriptor);
contents->SetEffectTransform(effect_transform);
if (color_filter) {
if (color_filter || invert_colors) {
TiledTextureContents::ColorFilterProc filter_proc =
[color_filter = color_filter](FilterInput::Ref input) {
return color_filter->WrapWithGPUColorFilter(
std::move(input), ColorFilterContents::AbsorbOpacity::kNo);
[color_filter = color_filter,
invert_colors = invert_colors](const FilterInput::Ref& input) {
if (invert_colors && color_filter) {
std::shared_ptr<FilterContents> color_filter_output =
WrapWithGPUColorFilter(
color_filter, input,
ColorFilterContents::AbsorbOpacity::kNo);
return WrapWithInvertColors(
FilterInput::Make(color_filter_output),
ColorFilterContents::AbsorbOpacity::kNo);
}
if (color_filter) {
return WrapWithGPUColorFilter(
color_filter, input,
ColorFilterContents::AbsorbOpacity::kNo);
}
return WrapWithInvertColors(
input, ColorFilterContents::AbsorbOpacity::kNo);
};
contents->SetColorFilter(filter_proc);
}
@ -247,32 +252,6 @@ std::shared_ptr<ColorSourceContents> Paint::CreateContents() const {
FML_UNREACHABLE();
}
std::shared_ptr<Contents> Paint::CreateContentsForGeometry(
const std::shared_ptr<Geometry>& geometry) const {
auto contents = CreateContents();
// Attempt to apply the color filter on the CPU first.
// Note: This is not just an optimization; some color sources rely on
// CPU-applied color filters to behave properly.
auto color_filter = GetColorFilter();
bool needs_color_filter = !!color_filter;
if (color_filter &&
contents->ApplyColorFilter(color_filter->GetCPUColorFilterProc())) {
needs_color_filter = false;
}
contents->SetGeometry(geometry);
if (mask_blur_descriptor.has_value()) {
// If there's a mask blur and we need to apply the color filter on the GPU,
// we need to be careful to only apply the color filter to the source
// colors. CreateMaskBlur is able to handle this case.
return mask_blur_descriptor->CreateMaskBlur(
contents, needs_color_filter ? color_filter : nullptr);
}
return contents;
}
std::shared_ptr<Contents> Paint::WithFilters(
std::shared_ptr<Contents> input) const {
input = WithColorFilter(input, ColorFilterContents::AbsorbOpacity::kYes);
@ -314,7 +293,7 @@ std::shared_ptr<FilterContents> Paint::WithImageFilter(
if (!image_filter) {
return nullptr;
}
auto filter = image_filter->WrapInput(FilterInput::Make(input));
auto filter = WrapInput(image_filter, FilterInput::Make(input));
filter->SetRenderingMode(rendering_mode);
filter->SetEffectTransform(effect_transform);
return filter;
@ -330,20 +309,35 @@ std::shared_ptr<Contents> Paint::WithColorFilter(
return input;
}
auto color_filter = GetColorFilter();
if (!color_filter) {
if (!color_filter && !invert_colors) {
return input;
}
// Attempt to apply the color filter on the CPU first.
// Note: This is not just an optimization; some color sources rely on
// CPU-applied color filters to behave properly.
if (input->ApplyColorFilter(color_filter->GetCPUColorFilterProc())) {
if (input->ApplyColorFilter([&](Color color) -> Color {
if (color_filter) {
color = GetCPUColorFilterProc(color_filter)(color);
}
if (invert_colors) {
color = color.ApplyColorMatrix(kColorInversion);
}
return color;
})) {
return input;
}
return color_filter->WrapWithGPUColorFilter(FilterInput::Make(input),
if (color_filter) {
input = WrapWithGPUColorFilter(color_filter, FilterInput::Make(input),
absorb_opacity);
}
if (invert_colors) {
input = WrapWithInvertColors(FilterInput::Make(input), absorb_opacity);
}
return input;
}
std::shared_ptr<FilterContents> Paint::MaskBlurDescriptor::CreateMaskBlur(
std::shared_ptr<TextureContents> texture_contents) const {
@ -375,10 +369,11 @@ std::shared_ptr<FilterContents> Paint::MaskBlurDescriptor::CreateMaskBlur(
std::shared_ptr<FilterContents> Paint::MaskBlurDescriptor::CreateMaskBlur(
std::shared_ptr<ColorSourceContents> color_source_contents,
const std::shared_ptr<ColorFilter>& color_filter) const {
// If it's a solid color and there is no color filter, then we can just get
// away with doing one Gaussian blur.
if (color_source_contents->IsSolidColor() && !color_filter) {
const flutter::DlColorFilter* color_filter,
bool invert_colors) const {
// If it's a solid color then we can just get away with doing one Gaussian
// blur. The color filter will always be applied on the CPU.
if (color_source_contents->IsSolidColor()) {
return FilterContents::MakeGaussianBlur(
FilterInput::Make(color_source_contents), sigma, sigma,
Entity::TileMode::kDecal, style, color_source_contents->GetGeometry());
@ -409,10 +404,14 @@ std::shared_ptr<FilterContents> Paint::MaskBlurDescriptor::CreateMaskBlur(
std::shared_ptr<Contents> color_contents = color_source_contents;
/// 4. Apply the user set color filter on the GPU, if applicable.
if (color_filter) {
color_contents = color_filter->WrapWithGPUColorFilter(
FilterInput::Make(color_source_contents),
color_contents =
WrapWithGPUColorFilter(color_filter, FilterInput::Make(color_contents),
ColorFilterContents::AbsorbOpacity::kYes);
}
if (invert_colors) {
color_contents =
WrapWithInvertColors(FilterInput::Make(color_contents),
ColorFilterContents::AbsorbOpacity::kYes);
}
@ -441,22 +440,8 @@ std::shared_ptr<FilterContents> Paint::MaskBlurDescriptor::CreateMaskBlur(
Sigma(blur_sigma.y), style);
}
std::shared_ptr<ColorFilter> Paint::GetColorFilter() const {
if (invert_colors && color_filter) {
auto filter = ColorFilter::MakeMatrix(kColorInversion);
return ColorFilter::MakeComposed(filter, color_filter);
}
if (invert_colors) {
return ColorFilter::MakeMatrix(kColorInversion);
}
if (color_filter) {
return color_filter;
}
return nullptr;
}
bool Paint::HasColorFilter() const {
return !!color_filter || invert_colors;
return color_filter || invert_colors;
}
} // namespace impeller

14
engine/src/flutter/impeller/display_list/paint.h
View File

@ -7,7 +7,9 @@
#include <memory>
#include "display_list/effects/dl_color_filter.h"
#include "display_list/effects/dl_color_source.h"
#include "display_list/effects/dl_image_filter.h"
#include "impeller/display_list/color_filter.h"
#include "impeller/display_list/image_filter.h"
#include "impeller/entity/contents/color_source_contents.h"
@ -55,7 +57,8 @@ struct Paint {
std::shared_ptr<FilterContents> CreateMaskBlur(
std::shared_ptr<ColorSourceContents> color_source_contents,
const std::shared_ptr<ColorFilter>& color_filter) const;
const flutter::DlColorFilter* color_filter,
bool invert_colors) const;
std::shared_ptr<FilterContents> CreateMaskBlur(
std::shared_ptr<TextureContents> texture_contents) const;
@ -68,6 +71,8 @@ struct Paint {
Color color = Color::Black();
const flutter::DlColorSource* color_source = nullptr;
const flutter::DlColorFilter* color_filter = nullptr;
const flutter::DlImageFilter* image_filter = nullptr;
Scalar stroke_width = 0.0;
Cap stroke_cap = Cap::kButt;
@ -77,12 +82,8 @@ struct Paint {
BlendMode blend_mode = BlendMode::kSourceOver;
bool invert_colors = false;
std::shared_ptr<ImageFilter> image_filter;
std::shared_ptr<ColorFilter> color_filter;
std::optional<MaskBlurDescriptor> mask_blur_descriptor;
std::shared_ptr<ColorFilter> GetColorFilter() const;
/// @brief Wrap this paint's configured filters to the given contents.
/// @param[in] input The contents to wrap with paint's filters.
/// @return The filter-wrapped contents. If there are no filters that need
@ -102,9 +103,6 @@ struct Paint {
std::shared_ptr<Contents> input,
const Matrix& effect_transform = Matrix()) const;
std::shared_ptr<Contents> CreateContentsForGeometry(
const std::shared_ptr<Geometry>& geometry) const;
/// @brief Whether this paint has a color filter that can apply opacity
bool HasColorFilter() const;

64
engine/src/flutter/impeller/display_list/skia_conversions.cc
View File

@ -201,5 +201,69 @@ Matrix ToMatrix(const SkMatrix& m) {
};
}
BlendMode ToBlendMode(flutter::DlBlendMode mode) {
switch (mode) {
case flutter::DlBlendMode::kClear:
return BlendMode::kClear;
case flutter::DlBlendMode::kSrc:
return BlendMode::kSource;
case flutter::DlBlendMode::kDst:
return BlendMode::kDestination;
case flutter::DlBlendMode::kSrcOver:
return BlendMode::kSourceOver;
case flutter::DlBlendMode::kDstOver:
return BlendMode::kDestinationOver;
case flutter::DlBlendMode::kSrcIn:
return BlendMode::kSourceIn;
case flutter::DlBlendMode::kDstIn:
return BlendMode::kDestinationIn;
case flutter::DlBlendMode::kSrcOut:
return BlendMode::kSourceOut;
case flutter::DlBlendMode::kDstOut:
return BlendMode::kDestinationOut;
case flutter::DlBlendMode::kSrcATop:
return BlendMode::kSourceATop;
case flutter::DlBlendMode::kDstATop:
return BlendMode::kDestinationATop;
case flutter::DlBlendMode::kXor:
return BlendMode::kXor;
case flutter::DlBlendMode::kPlus:
return BlendMode::kPlus;
case flutter::DlBlendMode::kModulate:
return BlendMode::kModulate;
case flutter::DlBlendMode::kScreen:
return BlendMode::kScreen;
case flutter::DlBlendMode::kOverlay:
return BlendMode::kOverlay;
case flutter::DlBlendMode::kDarken:
return BlendMode::kDarken;
case flutter::DlBlendMode::kLighten:
return BlendMode::kLighten;
case flutter::DlBlendMode::kColorDodge:
return BlendMode::kColorDodge;
case flutter::DlBlendMode::kColorBurn:
return BlendMode::kColorBurn;
case flutter::DlBlendMode::kHardLight:
return BlendMode::kHardLight;
case flutter::DlBlendMode::kSoftLight:
return BlendMode::kSoftLight;
case flutter::DlBlendMode::kDifference:
return BlendMode::kDifference;
case flutter::DlBlendMode::kExclusion:
return BlendMode::kExclusion;
case flutter::DlBlendMode::kMultiply:
return BlendMode::kMultiply;
case flutter::DlBlendMode::kHue:
return BlendMode::kHue;
case flutter::DlBlendMode::kSaturation:
return BlendMode::kSaturation;
case flutter::DlBlendMode::kColor:
return BlendMode::kColor;
case flutter::DlBlendMode::kLuminosity:
return BlendMode::kLuminosity;
}
FML_UNREACHABLE();
}
} // namespace skia_conversions
} // namespace impeller

2
engine/src/flutter/impeller/display_list/skia_conversions.h
View File

@ -61,6 +61,8 @@ impeller::SamplerDescriptor ToSamplerDescriptor(
Matrix ToMatrix(const SkMatrix& m);
BlendMode ToBlendMode(flutter::DlBlendMode mode);
/// @brief Convert display list colors + stops into impeller colors and stops,
/// taking care to ensure that the stops monotonically increase from 0.0 to 1.0.
///

10
engine/src/flutter/impeller/display_list/skia_conversions_unittests.cc
View File

@ -2,11 +2,13 @@
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "display_list/dl_blend_mode.h"
#include "display_list/dl_color.h"
#include "display_list/dl_tile_mode.h"
#include "flutter/testing/testing.h"
#include "impeller/core/formats.h"
#include "impeller/display_list/skia_conversions.h"
#include "impeller/geometry/color.h"
#include "impeller/geometry/scalar.h"
#include "include/core/SkMatrix.h"
#include "include/core/SkRRect.h"
@ -292,5 +294,13 @@ TEST(SkiaConversionsTest, IsNearlySimpleRRect) {
}
}
TEST(SkiaConversionsTest, BlendMode) {
for (auto i = 0; i < static_cast<int>(flutter::DlBlendMode::kLastMode); i++) {
EXPECT_EQ(
skia_conversions::ToBlendMode(static_cast<flutter::DlBlendMode>(i)),
static_cast<BlendMode>(i));
}
}
} // namespace testing
} // namespace impeller

2
engine/src/flutter/impeller/entity/contents/tiled_texture_contents.h
View File

@ -7,13 +7,11 @@
#include <functional>
#include <memory>
#include <vector>
#include "impeller/core/sampler_descriptor.h"
#include "impeller/entity/contents/color_source_contents.h"
#include "impeller/entity/contents/filters/color_filter_contents.h"
#include "impeller/entity/entity.h"
#include "impeller/geometry/path.h"
#include "impeller/renderer/capabilities.h"
namespace impeller {