| // Copyright 2013 The Flutter Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef FLUTTER_IMPELLER_DISPLAY_LIST_DL_DISPATCHER_H_ |
| #define FLUTTER_IMPELLER_DISPLAY_LIST_DL_DISPATCHER_H_ |
| |
| #include "display_list/utils/dl_receiver_utils.h" |
| #include "flutter/display_list/dl_op_receiver.h" |
| #include "fml/logging.h" |
| #include "impeller/aiks/canvas_type.h" |
| #include "impeller/aiks/experimental_canvas.h" |
| #include "impeller/aiks/paint.h" |
| #include "impeller/entity/contents/content_context.h" |
| |
| namespace impeller { |
| |
| class DlDispatcherBase : public flutter::DlOpReceiver { |
| public: |
| Picture EndRecordingAsPicture(); |
| |
| // |flutter::DlOpReceiver| |
| bool PrefersImpellerPaths() const override { return true; } |
| |
| // |flutter::DlOpReceiver| |
| void setAntiAlias(bool aa) override; |
| |
| // |flutter::DlOpReceiver| |
| void setDrawStyle(flutter::DlDrawStyle style) override; |
| |
| // |flutter::DlOpReceiver| |
| void setColor(flutter::DlColor color) override; |
| |
| // |flutter::DlOpReceiver| |
| void setStrokeWidth(SkScalar width) override; |
| |
| // |flutter::DlOpReceiver| |
| void setStrokeMiter(SkScalar limit) override; |
| |
| // |flutter::DlOpReceiver| |
| void setStrokeCap(flutter::DlStrokeCap cap) override; |
| |
| // |flutter::DlOpReceiver| |
| void setStrokeJoin(flutter::DlStrokeJoin join) override; |
| |
| // |flutter::DlOpReceiver| |
| void setColorSource(const flutter::DlColorSource* source) override; |
| |
| // |flutter::DlOpReceiver| |
| void setColorFilter(const flutter::DlColorFilter* filter) override; |
| |
| // |flutter::DlOpReceiver| |
| void setInvertColors(bool invert) override; |
| |
| // |flutter::DlOpReceiver| |
| void setBlendMode(flutter::DlBlendMode mode) override; |
| |
| // |flutter::DlOpReceiver| |
| void setPathEffect(const flutter::DlPathEffect* effect) override; |
| |
| // |flutter::DlOpReceiver| |
| void setMaskFilter(const flutter::DlMaskFilter* filter) override; |
| |
| // |flutter::DlOpReceiver| |
| void setImageFilter(const flutter::DlImageFilter* filter) override; |
| |
| // |flutter::DlOpReceiver| |
| void save(uint32_t total_content_depth) override; |
| |
| // |flutter::DlOpReceiver| |
| void saveLayer(const SkRect& bounds, |
| const flutter::SaveLayerOptions& options, |
| uint32_t total_content_depth, |
| const flutter::DlImageFilter* backdrop) override; |
| |
| // |flutter::DlOpReceiver| |
| void restore() override; |
| |
| // |flutter::DlOpReceiver| |
| void translate(SkScalar tx, SkScalar ty) override; |
| |
| // |flutter::DlOpReceiver| |
| void scale(SkScalar sx, SkScalar sy) override; |
| |
| // |flutter::DlOpReceiver| |
| void rotate(SkScalar degrees) override; |
| |
| // |flutter::DlOpReceiver| |
| void skew(SkScalar sx, SkScalar sy) override; |
| |
| // |flutter::DlOpReceiver| |
| void transform2DAffine(SkScalar mxx, |
| SkScalar mxy, |
| SkScalar mxt, |
| SkScalar myx, |
| SkScalar myy, |
| SkScalar myt) override; |
| |
| // |flutter::DlOpReceiver| |
| void transformFullPerspective(SkScalar mxx, |
| SkScalar mxy, |
| SkScalar mxz, |
| SkScalar mxt, |
| SkScalar myx, |
| SkScalar myy, |
| SkScalar myz, |
| SkScalar myt, |
| SkScalar mzx, |
| SkScalar mzy, |
| SkScalar mzz, |
| SkScalar mzt, |
| SkScalar mwx, |
| SkScalar mwy, |
| SkScalar mwz, |
| SkScalar mwt) override; |
| |
| // |flutter::DlOpReceiver| |
| void transformReset() override; |
| |
| // |flutter::DlOpReceiver| |
| void clipRect(const SkRect& rect, ClipOp clip_op, bool is_aa) override; |
| |
| // |flutter::DlOpReceiver| |
| void clipRRect(const SkRRect& rrect, ClipOp clip_op, bool is_aa) override; |
| |
| // |flutter::DlOpReceiver| |
| void clipPath(const SkPath& path, ClipOp clip_op, bool is_aa) override; |
| |
| // |flutter::DlOpReceiver| |
| void clipPath(const CacheablePath& cache, |
| ClipOp clip_op, |
| bool is_aa) override; |
| |
| // |flutter::DlOpReceiver| |
| void drawColor(flutter::DlColor color, flutter::DlBlendMode mode) override; |
| |
| // |flutter::DlOpReceiver| |
| void drawPaint() override; |
| |
| // |flutter::DlOpReceiver| |
| void drawLine(const SkPoint& p0, const SkPoint& p1) override; |
| |
| // |flutter::DlOpReceiver| |
| void drawRect(const SkRect& rect) override; |
| |
| // |flutter::DlOpReceiver| |
| void drawOval(const SkRect& bounds) override; |
| |
| // |flutter::DlOpReceiver| |
| void drawCircle(const SkPoint& center, SkScalar radius) override; |
| |
| // |flutter::DlOpReceiver| |
| void drawRRect(const SkRRect& rrect) override; |
| |
| // |flutter::DlOpReceiver| |
| void drawDRRect(const SkRRect& outer, const SkRRect& inner) override; |
| |
| // |flutter::DlOpReceiver| |
| void drawPath(const SkPath& path) override; |
| |
| // |flutter::DlOpReceiver| |
| void drawPath(const CacheablePath& cache) override; |
| |
| // |flutter::DlOpReceiver| |
| void drawArc(const SkRect& oval_bounds, |
| SkScalar start_degrees, |
| SkScalar sweep_degrees, |
| bool use_center) override; |
| |
| // |flutter::DlOpReceiver| |
| void drawPoints(PointMode mode, |
| uint32_t count, |
| const SkPoint points[]) override; |
| |
| // |flutter::DlOpReceiver| |
| void drawVertices(const flutter::DlVertices* vertices, |
| flutter::DlBlendMode dl_mode) override; |
| |
| // |flutter::DlOpReceiver| |
| void drawImage(const sk_sp<flutter::DlImage> image, |
| const SkPoint point, |
| flutter::DlImageSampling sampling, |
| bool render_with_attributes) override; |
| |
| // |flutter::DlOpReceiver| |
| void drawImageRect(const sk_sp<flutter::DlImage> image, |
| const SkRect& src, |
| const SkRect& dst, |
| flutter::DlImageSampling sampling, |
| bool render_with_attributes, |
| SrcRectConstraint constraint) override; |
| |
| // |flutter::DlOpReceiver| |
| void drawImageNine(const sk_sp<flutter::DlImage> image, |
| const SkIRect& center, |
| const SkRect& dst, |
| flutter::DlFilterMode filter, |
| bool render_with_attributes) override; |
| |
| // |flutter::DlOpReceiver| |
| void drawAtlas(const sk_sp<flutter::DlImage> atlas, |
| const SkRSXform xform[], |
| const SkRect tex[], |
| const flutter::DlColor colors[], |
| int count, |
| flutter::DlBlendMode mode, |
| flutter::DlImageSampling sampling, |
| const SkRect* cull_rect, |
| bool render_with_attributes) override; |
| |
| // |flutter::DlOpReceiver| |
| void drawDisplayList(const sk_sp<flutter::DisplayList> display_list, |
| SkScalar opacity) override; |
| |
| // |flutter::DlOpReceiver| |
| void drawTextBlob(const sk_sp<SkTextBlob> blob, |
| SkScalar x, |
| SkScalar y) override; |
| |
| // |flutter::DlOpReceiver| |
| void drawTextFrame(const std::shared_ptr<impeller::TextFrame>& text_frame, |
| SkScalar x, |
| SkScalar y) override; |
| |
| // |flutter::DlOpReceiver| |
| void drawShadow(const SkPath& path, |
| const flutter::DlColor color, |
| const SkScalar elevation, |
| bool transparent_occluder, |
| SkScalar dpr) override; |
| |
| // |flutter::DlOpReceiver| |
| void drawShadow(const CacheablePath& cache, |
| const flutter::DlColor color, |
| const SkScalar elevation, |
| bool transparent_occluder, |
| SkScalar dpr) override; |
| |
| virtual Canvas& GetCanvas() = 0; |
| |
| private: |
| Paint paint_; |
| Matrix initial_matrix_; |
| |
| static const Path& GetOrCachePath(const CacheablePath& cache); |
| |
| static void SimplifyOrDrawPath(Canvas& canvas, |
| const CacheablePath& cache, |
| const Paint& paint); |
| }; |
| |
| class DlDispatcher : public DlDispatcherBase { |
| public: |
| DlDispatcher(); |
| |
| explicit DlDispatcher(IRect cull_rect); |
| |
| explicit DlDispatcher(Rect cull_rect); |
| |
| ~DlDispatcher() = default; |
| |
| // |flutter::DlOpReceiver| |
| void save() override { |
| // This dispatcher is used from test cases that might not supply |
| // a content_depth parameter. Since this dispatcher doesn't use |
| // the value, we just pass through a 0. |
| DlDispatcherBase::save(0u); |
| } |
| using DlDispatcherBase::save; |
| |
| // |flutter::DlOpReceiver| |
| void saveLayer(const SkRect& bounds, |
| const flutter::SaveLayerOptions options, |
| const flutter::DlImageFilter* backdrop) override { |
| // This dispatcher is used from test cases that might not supply |
| // a content_depth parameter. Since this dispatcher doesn't use |
| // the value, we just pass through a 0. |
| DlDispatcherBase::saveLayer(bounds, options, 0u, backdrop); |
| } |
| using DlDispatcherBase::saveLayer; |
| |
| private: |
| Canvas canvas_; |
| |
| Canvas& GetCanvas() override; |
| }; |
| |
| class ExperimentalDlDispatcher : public DlDispatcherBase { |
| public: |
| ExperimentalDlDispatcher(ContentContext& renderer, |
| RenderTarget& render_target, |
| IRect cull_rect); |
| |
| ~ExperimentalDlDispatcher() = default; |
| |
| // |flutter::DlOpReceiver| |
| void save() override { |
| // This dispatcher should never be used with the save() variant |
| // that does not include the content_depth parameter. |
| FML_UNREACHABLE(); |
| } |
| using DlDispatcherBase::save; |
| |
| // |flutter::DlOpReceiver| |
| void saveLayer(const SkRect& bounds, |
| const flutter::SaveLayerOptions options, |
| const flutter::DlImageFilter* backdrop) override { |
| // This dispatcher should never be used with the saveLayer() variant |
| // that does not include the content_depth parameter. |
| FML_UNREACHABLE(); |
| } |
| using DlDispatcherBase::saveLayer; |
| |
| void FinishRecording() { canvas_.EndReplay(); } |
| |
| private: |
| ExperimentalCanvas canvas_; |
| |
| Canvas& GetCanvas() override; |
| }; |
| |
| /// Performs a first pass over the display list to collect all text frames. |
| class TextFrameDispatcher : public flutter::IgnoreAttributeDispatchHelper, |
| public flutter::IgnoreClipDispatchHelper, |
| public flutter::IgnoreDrawDispatchHelper { |
| public: |
| TextFrameDispatcher(const ContentContext& renderer, |
| const Matrix& initial_matrix); |
| void save() override; |
| |
| void saveLayer(const SkRect& bounds, |
| const flutter::SaveLayerOptions options, |
| const flutter::DlImageFilter* backdrop) override; |
| |
| void restore() override; |
| |
| void translate(SkScalar tx, SkScalar ty) override; |
| |
| void scale(SkScalar sx, SkScalar sy) override; |
| |
| void rotate(SkScalar degrees) override; |
| |
| void skew(SkScalar sx, SkScalar sy) override; |
| |
| // clang-format off |
| // 2x3 2D affine subset of a 4x4 transform in row major order |
| void transform2DAffine(SkScalar mxx, SkScalar mxy, SkScalar mxt, |
| SkScalar myx, SkScalar myy, SkScalar myt) override; |
| |
| // full 4x4 transform in row major order |
| void transformFullPerspective( |
| SkScalar mxx, SkScalar mxy, SkScalar mxz, SkScalar mxt, |
| SkScalar myx, SkScalar myy, SkScalar myz, SkScalar myt, |
| SkScalar mzx, SkScalar mzy, SkScalar mzz, SkScalar mzt, |
| SkScalar mwx, SkScalar mwy, SkScalar mwz, SkScalar mwt) override; |
| |
| void transformReset() override; |
| |
| void drawTextFrame(const std::shared_ptr<impeller::TextFrame>& text_frame, |
| SkScalar x, |
| SkScalar y) override; |
| |
| void drawDisplayList(const sk_sp<flutter::DisplayList> display_list, |
| SkScalar opacity) override; |
| |
| private: |
| const ContentContext& renderer_; |
| Matrix matrix_; |
| std::vector<Matrix> stack_; |
| }; |
| |
| } // namespace impeller |
| |
| #endif // FLUTTER_IMPELLER_DISPLAY_LIST_DL_DISPATCHER_H_ |