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-rw-r--r--libs/hwui/Renderer.h198
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diff --git a/libs/hwui/Renderer.h b/libs/hwui/Renderer.h
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-/*
- * Copyright (C) 2013 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HWUI_RENDERER_H
-#define ANDROID_HWUI_RENDERER_H
-
-#include <SkColorFilter.h>
-#include <SkPaint.h>
-#include <SkRegion.h>
-#include <utils/String8.h>
-
-#include "AssetAtlas.h"
-
-class SkDrawFilter;
-
-namespace android {
-
-class Functor;
-struct Res_png_9patch;
-
-namespace uirenderer {
-
-class RenderNode;
-class Layer;
-class Matrix4;
-class SkiaColorFilter;
-class Patch;
-
-enum DrawOpMode {
- kDrawOpMode_Immediate,
- kDrawOpMode_Defer,
- kDrawOpMode_Flush
-};
-
-/**
- * Hwui's abstract version of Canvas.
- *
- * Provides methods for frame state operations, as well as the SkCanvas style transform/clip state,
- * and varied drawing operations.
- *
- * Should at some point interact with native SkCanvas.
- */
-class ANDROID_API Renderer {
-public:
- virtual ~Renderer() {}
-
-// ----------------------------------------------------------------------------
-// Frame state operations
-// ----------------------------------------------------------------------------
- /**
- * Sets the dimension of the underlying drawing surface. This method must
- * be called at least once every time the drawing surface changes size.
- *
- * @param width The width in pixels of the underlysing surface
- * @param height The height in pixels of the underlysing surface
- */
- virtual void setViewport(int width, int height) = 0;
-
- /**
- * Prepares the renderer to draw a frame. This method must be invoked
- * at the beginning of each frame. When this method is invoked, the
- * entire drawing surface is assumed to be redrawn.
- *
- * @param opaque If true, the target surface is considered opaque
- * and will not be cleared. If false, the target surface
- * will be cleared
- */
- virtual void prepare(bool opaque) = 0;
-
- /**
- * Prepares the renderer to draw a frame. This method must be invoked
- * at the beginning of each frame. Only the specified rectangle of the
- * frame is assumed to be dirty. A clip will automatically be set to
- * the specified rectangle.
- *
- * @param left The left coordinate of the dirty rectangle
- * @param top The top coordinate of the dirty rectangle
- * @param right The right coordinate of the dirty rectangle
- * @param bottom The bottom coordinate of the dirty rectangle
- * @param opaque If true, the target surface is considered opaque
- * and will not be cleared. If false, the target surface
- * will be cleared in the specified dirty rectangle
- */
- virtual void prepareDirty(float left, float top, float right, float bottom,
- bool opaque) = 0;
-
- /**
- * Indicates the end of a frame. This method must be invoked whenever
- * the caller is done rendering a frame.
- * Returns true if any drawing was done during the frame (the output
- * has changed / is "dirty" and should be displayed to the user).
- */
- virtual bool finish() = 0;
-
-// ----------------------------------------------------------------------------
-// Canvas state operations
-// ----------------------------------------------------------------------------
- // Save (layer)
- virtual int getSaveCount() const = 0;
- virtual int save(int flags) = 0;
- virtual void restore() = 0;
- virtual void restoreToCount(int saveCount) = 0;
-
- virtual int saveLayer(float left, float top, float right, float bottom,
- const SkPaint* paint, int flags) = 0;
-
- int saveLayerAlpha(float left, float top, float right, float bottom,
- int alpha, int flags) {
- SkPaint paint;
- paint.setAlpha(alpha);
- return saveLayer(left, top, right, bottom, &paint, flags);
- }
-
- // Matrix
- virtual void getMatrix(SkMatrix* outMatrix) const = 0;
- virtual void translate(float dx, float dy, float dz = 0.0f) = 0;
- virtual void rotate(float degrees) = 0;
- virtual void scale(float sx, float sy) = 0;
- virtual void skew(float sx, float sy) = 0;
-
- virtual void setMatrix(const SkMatrix& matrix) = 0;
- virtual void concatMatrix(const SkMatrix& matrix) = 0;
-
- // clip
- virtual const Rect& getLocalClipBounds() const = 0;
- virtual bool quickRejectConservative(float left, float top,
- float right, float bottom) const = 0;
- virtual bool clipRect(float left, float top, float right, float bottom, SkRegion::Op op) = 0;
- virtual bool clipPath(const SkPath* path, SkRegion::Op op) = 0;
- virtual bool clipRegion(const SkRegion* region, SkRegion::Op op) = 0;
-
- // Misc
- virtual void setDrawFilter(SkDrawFilter* filter) = 0;
-
-// ----------------------------------------------------------------------------
-// Canvas draw operations
-// ----------------------------------------------------------------------------
- virtual void drawColor(int color, SkXfermode::Mode mode) = 0;
-
- // Bitmap-based
- virtual void drawBitmap(const SkBitmap* bitmap, const SkPaint* paint) = 0;
- virtual void drawBitmap(const SkBitmap* bitmap, Rect src, Rect dst, const SkPaint* paint) = 0;
- virtual void drawBitmapMesh(const SkBitmap* bitmap, int meshWidth, int meshHeight,
- const float* vertices, const int* colors, const SkPaint* paint) = 0;
- virtual void drawPatch(const SkBitmap* bitmap, const Res_png_9patch* patch,
- float left, float top, float right, float bottom, const SkPaint* paint) = 0;
-
- // Shapes
- virtual void drawRect(float left, float top, float right, float bottom,
- const SkPaint* paint) = 0;
- virtual void drawRects(const float* rects, int count, const SkPaint* paint) = 0;
- virtual void drawRoundRect(float left, float top, float right, float bottom,
- float rx, float ry, const SkPaint* paint) = 0;
- virtual void drawCircle(float x, float y, float radius, const SkPaint* paint) = 0;
- virtual void drawOval(float left, float top, float right, float bottom,
- const SkPaint* paint) = 0;
- virtual void drawArc(float left, float top, float right, float bottom,
- float startAngle, float sweepAngle, bool useCenter, const SkPaint* paint) = 0;
- virtual void drawPath(const SkPath* path, const SkPaint* paint) = 0;
- virtual void drawLines(const float* points, int count, const SkPaint* paint) = 0;
- virtual void drawPoints(const float* points, int count, const SkPaint* paint) = 0;
-
- // Text
- virtual void drawText(const char* text, int bytesCount, int count, float x, float y,
- const float* positions, const SkPaint* paint, float totalAdvance, const Rect& bounds,
- DrawOpMode drawOpMode = kDrawOpMode_Immediate) = 0;
- virtual void drawTextOnPath(const char* text, int bytesCount, int count, const SkPath* path,
- float hOffset, float vOffset, const SkPaint* paint) = 0;
- virtual void drawPosText(const char* text, int bytesCount, int count,
- const float* positions, const SkPaint* paint) = 0;
-
-// ----------------------------------------------------------------------------
-// Canvas draw operations - special
-// ----------------------------------------------------------------------------
- virtual void drawRenderNode(RenderNode* renderNode, Rect& dirty,
- int32_t replayFlags) = 0;
-
- // TODO: rename for consistency
- virtual void callDrawGLFunction(Functor* functor, Rect& dirty) = 0;
-}; // class Renderer
-
-}; // namespace uirenderer
-}; // namespace android
-
-#endif // ANDROID_HWUI_RENDERER_H
generated by cgit v1.1 at 2025-01-08 08:28:24 +0000