1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/skia/trunk/src/utils/debugger/SkDebugCanvas.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,307 @@
1.4 +
1.5 +/*
1.6 + * Copyright 2012 Google Inc.
1.7 + *
1.8 + * Use of this source code is governed by a BSD-style license that can be
1.9 + * found in the LICENSE file.
1.10 + */
1.11 +
1.12 +
1.13 +#ifndef SKDEBUGCANVAS_H_
1.14 +#define SKDEBUGCANVAS_H_
1.15 +
1.16 +#include "SkCanvas.h"
1.17 +#include "SkDrawCommand.h"
1.18 +#include "SkPicture.h"
1.19 +#include "SkTArray.h"
1.20 +#include "SkString.h"
1.21 +
1.22 +class SkTexOverrideFilter;
1.23 +
1.24 +class SK_API SkDebugCanvas : public SkCanvas {
1.25 +public:
1.26 + SkDebugCanvas(int width, int height);
1.27 + virtual ~SkDebugCanvas();
1.28 +
1.29 + void toggleFilter(bool toggle) { fFilter = toggle; }
1.30 +
1.31 + void setMegaVizMode(bool megaVizMode) { fMegaVizMode = megaVizMode; }
1.32 +
1.33 + /**
1.34 + * Enable or disable overdraw visualization
1.35 + */
1.36 + void setOverdrawViz(bool overdrawViz) { fOverdrawViz = overdrawViz; }
1.37 +
1.38 + /**
1.39 + * Enable or disable texure filtering override
1.40 + */
1.41 + void overrideTexFiltering(bool overrideTexFiltering, SkPaint::FilterLevel level);
1.42 +
1.43 + /**
1.44 + Executes all draw calls to the canvas.
1.45 + @param canvas The canvas being drawn to
1.46 + */
1.47 + void draw(SkCanvas* canvas);
1.48 +
1.49 + /**
1.50 + Executes the draw calls up to the specified index.
1.51 + @param canvas The canvas being drawn to
1.52 + @param index The index of the final command being executed
1.53 + */
1.54 + void drawTo(SkCanvas* canvas, int index);
1.55 +
1.56 + /**
1.57 + Returns the most recently calculated transformation matrix
1.58 + */
1.59 + const SkMatrix& getCurrentMatrix() {
1.60 + return fMatrix;
1.61 + }
1.62 +
1.63 + /**
1.64 + Returns the most recently calculated clip
1.65 + */
1.66 + const SkIRect& getCurrentClip() {
1.67 + return fClip;
1.68 + }
1.69 +
1.70 + /**
1.71 + Returns the index of the last draw command to write to the pixel at (x,y)
1.72 + */
1.73 + int getCommandAtPoint(int x, int y, int index);
1.74 +
1.75 + /**
1.76 + Removes the command at the specified index
1.77 + @param index The index of the command to delete
1.78 + */
1.79 + void deleteDrawCommandAt(int index);
1.80 +
1.81 + /**
1.82 + Returns the draw command at the given index.
1.83 + @param index The index of the command
1.84 + */
1.85 + SkDrawCommand* getDrawCommandAt(int index);
1.86 +
1.87 + /**
1.88 + Sets the draw command for a given index.
1.89 + @param index The index to overwrite
1.90 + @param command The new command
1.91 + */
1.92 + void setDrawCommandAt(int index, SkDrawCommand* command);
1.93 +
1.94 + /**
1.95 + Returns information about the command at the given index.
1.96 + @param index The index of the command
1.97 + */
1.98 + SkTDArray<SkString*>* getCommandInfo(int index);
1.99 +
1.100 + /**
1.101 + Returns the visibility of the command at the given index.
1.102 + @param index The index of the command
1.103 + */
1.104 + bool getDrawCommandVisibilityAt(int index);
1.105 +
1.106 + /**
1.107 + Returns the vector of draw commands
1.108 + */
1.109 + SK_ATTR_DEPRECATED("please use getDrawCommandAt and getSize instead")
1.110 + const SkTDArray<SkDrawCommand*>& getDrawCommands() const;
1.111 +
1.112 + /**
1.113 + Returns the vector of draw commands. Do not use this entry
1.114 + point - it is going away!
1.115 + */
1.116 + SkTDArray<SkDrawCommand*>& getDrawCommands();
1.117 +
1.118 + /**
1.119 + * Returns the string vector of draw commands
1.120 + */
1.121 + SkTArray<SkString>* getDrawCommandsAsStrings() const;
1.122 +
1.123 + /**
1.124 + Returns length of draw command vector.
1.125 + */
1.126 + int getSize() const {
1.127 + return fCommandVector.count();
1.128 + }
1.129 +
1.130 + /**
1.131 + Toggles the visibility / execution of the draw command at index i with
1.132 + the value of toggle.
1.133 + */
1.134 + void toggleCommand(int index, bool toggle);
1.135 +
1.136 + void setBounds(int width, int height) {
1.137 + fWidth = width;
1.138 + fHeight = height;
1.139 + }
1.140 +
1.141 + void setUserMatrix(SkMatrix matrix) {
1.142 + fUserMatrix = matrix;
1.143 + }
1.144 +
1.145 +////////////////////////////////////////////////////////////////////////////////
1.146 +// Inherited from SkCanvas
1.147 +////////////////////////////////////////////////////////////////////////////////
1.148 +
1.149 + virtual void clear(SkColor) SK_OVERRIDE;
1.150 +
1.151 + virtual void drawBitmap(const SkBitmap&, SkScalar left, SkScalar top,
1.152 + const SkPaint*) SK_OVERRIDE;
1.153 +
1.154 + virtual void drawBitmapRectToRect(const SkBitmap&, const SkRect* src,
1.155 + const SkRect& dst, const SkPaint* paint,
1.156 + DrawBitmapRectFlags flags) SK_OVERRIDE;
1.157 +
1.158 + virtual void drawBitmapMatrix(const SkBitmap&, const SkMatrix&,
1.159 + const SkPaint*) SK_OVERRIDE;
1.160 +
1.161 + virtual void drawBitmapNine(const SkBitmap& bitmap, const SkIRect& center,
1.162 + const SkRect& dst, const SkPaint*) SK_OVERRIDE;
1.163 +
1.164 + virtual void drawData(const void*, size_t) SK_OVERRIDE;
1.165 +
1.166 + virtual void beginCommentGroup(const char* description) SK_OVERRIDE;
1.167 +
1.168 + virtual void addComment(const char* kywd, const char* value) SK_OVERRIDE;
1.169 +
1.170 + virtual void endCommentGroup() SK_OVERRIDE;
1.171 +
1.172 + virtual void drawOval(const SkRect& oval, const SkPaint&) SK_OVERRIDE;
1.173 +
1.174 + virtual void drawPaint(const SkPaint& paint) SK_OVERRIDE;
1.175 +
1.176 + virtual void drawPath(const SkPath& path, const SkPaint&) SK_OVERRIDE;
1.177 +
1.178 + virtual void drawPicture(SkPicture& picture) SK_OVERRIDE;
1.179 +
1.180 + virtual void drawPoints(PointMode, size_t count, const SkPoint pts[],
1.181 + const SkPaint&) SK_OVERRIDE;
1.182 +
1.183 + virtual void drawPosText(const void* text, size_t byteLength,
1.184 + const SkPoint pos[], const SkPaint&) SK_OVERRIDE;
1.185 +
1.186 + virtual void drawPosTextH(const void* text, size_t byteLength,
1.187 + const SkScalar xpos[], SkScalar constY,
1.188 + const SkPaint&) SK_OVERRIDE;
1.189 +
1.190 + virtual void drawRect(const SkRect& rect, const SkPaint&) SK_OVERRIDE;
1.191 +
1.192 + virtual void drawRRect(const SkRRect& rrect, const SkPaint& paint) SK_OVERRIDE;
1.193 +
1.194 + virtual void drawSprite(const SkBitmap&, int left, int top,
1.195 + const SkPaint*) SK_OVERRIDE;
1.196 +
1.197 + virtual void drawText(const void* text, size_t byteLength, SkScalar x,
1.198 + SkScalar y, const SkPaint&) SK_OVERRIDE;
1.199 +
1.200 + virtual void drawTextOnPath(const void* text, size_t byteLength,
1.201 + const SkPath& path, const SkMatrix* matrix,
1.202 + const SkPaint&) SK_OVERRIDE;
1.203 +
1.204 + virtual void drawVertices(VertexMode, int vertexCount,
1.205 + const SkPoint vertices[], const SkPoint texs[],
1.206 + const SkColor colors[], SkXfermode*,
1.207 + const uint16_t indices[], int indexCount,
1.208 + const SkPaint&) SK_OVERRIDE;
1.209 +
1.210 + static const int kVizImageHeight = 256;
1.211 + static const int kVizImageWidth = 256;
1.212 +
1.213 + virtual bool isClipEmpty() const SK_OVERRIDE { return false; }
1.214 + virtual bool isClipRect() const SK_OVERRIDE { return true; }
1.215 +#ifdef SK_SUPPORT_LEGACY_GETCLIPTYPE
1.216 + virtual ClipType getClipType() const SK_OVERRIDE {
1.217 + return kRect_ClipType;
1.218 + }
1.219 +#endif
1.220 + virtual bool getClipBounds(SkRect* bounds) const SK_OVERRIDE {
1.221 + if (NULL != bounds) {
1.222 + bounds->setXYWH(0, 0,
1.223 + SkIntToScalar(this->imageInfo().fWidth),
1.224 + SkIntToScalar(this->imageInfo().fHeight));
1.225 + }
1.226 + return true;
1.227 + }
1.228 + virtual bool getClipDeviceBounds(SkIRect* bounds) const SK_OVERRIDE {
1.229 + if (NULL != bounds) {
1.230 + bounds->setLargest();
1.231 + }
1.232 + return true;
1.233 + }
1.234 +
1.235 +protected:
1.236 + virtual void willSave(SaveFlags) SK_OVERRIDE;
1.237 + virtual SaveLayerStrategy willSaveLayer(const SkRect*, const SkPaint*, SaveFlags) SK_OVERRIDE;
1.238 + virtual void willRestore() SK_OVERRIDE;
1.239 +
1.240 + virtual void didTranslate(SkScalar, SkScalar) SK_OVERRIDE;
1.241 + virtual void didScale(SkScalar, SkScalar) SK_OVERRIDE;
1.242 + virtual void didRotate(SkScalar) SK_OVERRIDE;
1.243 + virtual void didSkew(SkScalar, SkScalar) SK_OVERRIDE;
1.244 + virtual void didConcat(const SkMatrix&) SK_OVERRIDE;
1.245 + virtual void didSetMatrix(const SkMatrix&) SK_OVERRIDE;
1.246 +
1.247 + virtual void onDrawDRRect(const SkRRect&, const SkRRect&, const SkPaint&) SK_OVERRIDE;
1.248 + virtual void onPushCull(const SkRect& cullRect) SK_OVERRIDE;
1.249 + virtual void onPopCull() SK_OVERRIDE;
1.250 +
1.251 + virtual void onClipRect(const SkRect&, SkRegion::Op, ClipEdgeStyle) SK_OVERRIDE;
1.252 + virtual void onClipRRect(const SkRRect&, SkRegion::Op, ClipEdgeStyle) SK_OVERRIDE;
1.253 + virtual void onClipPath(const SkPath&, SkRegion::Op, ClipEdgeStyle) SK_OVERRIDE;
1.254 + virtual void onClipRegion(const SkRegion& region, SkRegion::Op) SK_OVERRIDE;
1.255 +
1.256 + void markActiveCommands(int index);
1.257 +
1.258 +private:
1.259 + SkTDArray<SkDrawCommand*> fCommandVector;
1.260 + int fWidth;
1.261 + int fHeight;
1.262 + bool fFilter;
1.263 + bool fMegaVizMode;
1.264 + int fIndex;
1.265 + SkMatrix fUserMatrix;
1.266 + SkMatrix fMatrix;
1.267 + SkIRect fClip;
1.268 +
1.269 + bool fOverdrawViz;
1.270 + SkDrawFilter* fOverdrawFilter;
1.271 +
1.272 + bool fOverrideTexFiltering;
1.273 + SkTexOverrideFilter* fTexOverrideFilter;
1.274 +
1.275 + /**
1.276 + Number of unmatched save() calls at any point during a draw.
1.277 + If there are any saveLayer() calls outstanding, we need to resolve
1.278 + all of them, which in practice means resolving all save() calls,
1.279 + to avoid corruption of our canvas.
1.280 + */
1.281 + int fOutstandingSaveCount;
1.282 +
1.283 + /**
1.284 + The active saveLayer commands at a given point in the renderering.
1.285 + Only used when "mega" visualization is enabled.
1.286 + */
1.287 + SkTDArray<SkDrawCommand*> fActiveLayers;
1.288 +
1.289 + /**
1.290 + The active cull commands at a given point in the rendering.
1.291 + Only used when "mega" visualization is enabled.
1.292 + */
1.293 + SkTDArray<SkDrawCommand*> fActiveCulls;
1.294 +
1.295 + /**
1.296 + Adds the command to the classes vector of commands.
1.297 + @param command The draw command for execution
1.298 + */
1.299 + void addDrawCommand(SkDrawCommand* command);
1.300 +
1.301 + /**
1.302 + Applies any panning and zooming the user has specified before
1.303 + drawing anything else into the canvas.
1.304 + */
1.305 + void applyUserTransform(SkCanvas* canvas);
1.306 +
1.307 + typedef SkCanvas INHERITED;
1.308 +};
1.309 +
1.310 +#endif
