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recordopts.cpp File Reference
#include "gm/gm.h"
#include "include/core/SkBitmap.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkColor.h"
#include "include/core/SkColorFilter.h"
#include "include/core/SkImageFilter.h"
#include "include/core/SkPaint.h"
#include "include/core/SkPicture.h"
#include "include/core/SkPictureRecorder.h"
#include "include/core/SkRect.h"
#include "include/core/SkRefCnt.h"
#include "include/core/SkScalar.h"
#include "include/core/SkTypes.h"
#include "include/effects/SkImageFilters.h"
#include "include/gpu/GrDirectContext.h"

Go to the source code of this file.

Typedefs

typedef void(* InstallDetectorFunc) (SkPaint *)
 

Functions

static sk_sp< SkColorFilter > make_detector_color_filter ()
 
static void install_detector_color_filter (SkPaint *drawPaint)
 
static void install_detector_image_filter (SkPaint *drawPaint)
 
static void no_detector_install (SkPaint *)
 
static void draw_save_layer_draw_rect_restore_sequence (SkCanvas *canvas, SkColor shapeColor, InstallDetectorFunc installDetector)
 
static void draw_save_layer_draw_bitmap_restore_sequence (SkCanvas *canvas, SkColor shapeColor, InstallDetectorFunc installDetector)
 
static void draw_svg_opacity_and_filter_layer_sequence (SkCanvas *canvas, SkColor shapeColor, InstallDetectorFunc installDetector)
 
 DEF_SIMPLE_GM (recordopts, canvas,(kTestRectSize+1) *2,(kTestRectSize+1) *15)
 

Variables

constexpr int kTestRectSize = 50
 
constexpr int kDetectorGreenValue = 50
 

Typedef Documentation

◆ InstallDetectorFunc

typedef void(* InstallDetectorFunc) (SkPaint *)

Definition at line 57 of file recordopts.cpp.

Function Documentation

◆ DEF_SIMPLE_GM()

DEF_SIMPLE_GM ( recordopts  ,
canvas  ,
(kTestRectSize+1) *  2,
(kTestRectSize+1) *  15 
)

Definition at line 139 of file recordopts.cpp.

139 {
140 auto direct = GrAsDirectContext(canvas->recordingContext());
141 canvas->clear(SK_ColorTRANSPARENT);
142
143 typedef void (*TestVariantSequence)(SkCanvas*, SkColor, InstallDetectorFunc);
144 TestVariantSequence funcs[] = {
145 draw_save_layer_draw_rect_restore_sequence,
146 draw_save_layer_draw_bitmap_restore_sequence,
147 draw_svg_opacity_and_filter_layer_sequence,
148 };
149
150 // Draw layer-related sequences that can be optimized by folding the opacity layer alpha to
151 // the inner draw operation. This tries to trigger the optimization, and relies on gm diffs
152 // to keep the color value correct over time.
153
154 // Draws two green rects side by side: one is without the optimization, the other is with
155 // the optimization applied.
156
157 SkColor shapeColor = SkColorSetARGB(255, 0, 255, 0);
158 for (size_t k = 0; k < std::size(funcs); ++k) {
159 canvas->save();
160
161 TestVariantSequence drawTestSequence = funcs[k];
162 drawTestSequence(canvas, shapeColor, no_detector_install);
163 if (direct) {
164 direct->flushAndSubmit();
165 }
166 canvas->translate(SkIntToScalar(kTestRectSize) + SkIntToScalar(1), SkIntToScalar(0));
167 {
168 SkPictureRecorder recorder;
169 drawTestSequence(recorder.beginRecording(SkIntToScalar(kTestRectSize),
170 SkIntToScalar(kTestRectSize)),
171 shapeColor, no_detector_install);
172 recorder.finishRecordingAsPicture()->playback(canvas);
173 if (direct) {
174 direct->flushAndSubmit();
175 }
176 }
177 canvas->restore();
178 canvas->translate(SkIntToScalar(0), SkIntToScalar(kTestRectSize) + SkIntToScalar(1));
179 }
180
181 // Draw the same layer related sequences, but manipulate the sequences so that the result is
182 // incorrect if the alpha is folded or folded incorrectly. These test the observable state
183 // throughout the pixel pipeline, and thus may turn off the optimizations (this is why we
184 // trigger the optimizations above).
185
186 // Draws two green rects side by side: one is without the optimization, the other is with
187 // the possibility that optimization is applied.
188 // At the end, draws the same patterns in translucent black. This tests that the detectors
189 // work, eg. that if the value the detector sees is wrong, the resulting image shows this.
190 SkColor shapeColors[] = {
191 SkColorSetARGB(255, 0, kDetectorGreenValue, 0),
192 SkColorSetARGB(255, 0, (kDetectorGreenValue + 1), 0) // This tests that detectors work.
193 };
194
195 InstallDetectorFunc detectorInstallFuncs[] = {
196 install_detector_image_filter,
197 install_detector_color_filter
198 };
199
200 for (size_t i = 0; i < std::size(shapeColors); ++i) {
201 shapeColor = shapeColors[i];
202 for (size_t j = 0; j < std::size(detectorInstallFuncs); ++j) {
203 InstallDetectorFunc detectorInstallFunc = detectorInstallFuncs[j];
204 for (size_t k = 0; k < std::size(funcs); ++k) {
205 TestVariantSequence drawTestSequence = funcs[k];
206 canvas->save();
207 drawTestSequence(canvas, shapeColor, detectorInstallFunc);
208 if (direct) {
209 direct->flushAndSubmit();
210 }
211 canvas->translate(SkIntToScalar(kTestRectSize + 1), SkIntToScalar(0));
212 {
213 SkPictureRecorder recorder;
214 drawTestSequence(recorder.beginRecording(SkIntToScalar(kTestRectSize),
215 SkIntToScalar(kTestRectSize)),
216 shapeColor, detectorInstallFunc);
217 recorder.finishRecordingAsPicture()->playback(canvas);
218 if (direct) {
219 direct->flushAndSubmit();
220 }
221 }
222
223 canvas->restore();
224 canvas->translate(SkIntToScalar(0), SkIntToScalar(kTestRectSize + 1));
225 }
226
227 }
228 }
229}
GrAsDirectContext
static GrDirectContext * GrAsDirectContext(GrContext_Base *base)
Definition: GrRecordingContext.h:281
SkColor
uint32_t SkColor
Definition: SkColor.h:37
SK_ColorTRANSPARENT
constexpr SkColor SK_ColorTRANSPARENT
Definition: SkColor.h:99
SkColorSetARGB
static constexpr SkColor SkColorSetARGB(U8CPU a, U8CPU r, U8CPU g, U8CPU b)
Definition: SkColor.h:49
SkIntToScalar
#define SkIntToScalar(x)
Definition: SkScalar.h:57
SkPictureRecorder::beginRecording
SkCanvas * beginRecording(const SkRect &bounds, sk_sp< SkBBoxHierarchy > bbh)
Definition: SkPictureRecorder.cpp:35
SkPictureRecorder::finishRecordingAsPicture
sk_sp< SkPicture > finishRecordingAsPicture()
Definition: SkPictureRecorder.cpp:67
SkPicture::playback
virtual void playback(SkCanvas *canvas, AbortCallback *callback=nullptr) const =0
i
int i
Definition: fl_socket_accessible.cc:18
flutter::size
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Definition: switches.h:259
install_detector_image_filter
static void install_detector_image_filter(SkPaint *drawPaint)
Definition: recordopts.cpp:49
no_detector_install
static void no_detector_install(SkPaint *)
Definition: recordopts.cpp:54
kDetectorGreenValue
constexpr int kDetectorGreenValue
Definition: recordopts.cpp:25
kTestRectSize
constexpr int kTestRectSize
Definition: recordopts.cpp:24
draw_save_layer_draw_rect_restore_sequence
static void draw_save_layer_draw_rect_restore_sequence(SkCanvas *canvas, SkColor shapeColor, InstallDetectorFunc installDetector)
Definition: recordopts.cpp:63
install_detector_color_filter
static void install_detector_color_filter(SkPaint *drawPaint)
Definition: recordopts.cpp:44
InstallDetectorFunc
void(* InstallDetectorFunc)(SkPaint *)
Definition: recordopts.cpp:57
draw_svg_opacity_and_filter_layer_sequence
static void draw_svg_opacity_and_filter_layer_sequence(SkCanvas *canvas, SkColor shapeColor, InstallDetectorFunc installDetector)
Definition: recordopts.cpp:104
draw_save_layer_draw_bitmap_restore_sequence
static void draw_save_layer_draw_bitmap_restore_sequence(SkCanvas *canvas, SkColor shapeColor, InstallDetectorFunc installDetector)
Definition: recordopts.cpp:78

◆ draw_save_layer_draw_bitmap_restore_sequence()

static void draw_save_layer_draw_bitmap_restore_sequence ( SkCanvas *  canvas,
SkColor  shapeColor,
InstallDetectorFunc  installDetector 
)
static

Definition at line 78 of file recordopts.cpp.

79 {
80 SkBitmap bitmap;
81 bitmap.allocN32Pixels(kTestRectSize, kTestRectSize);
82 bitmap.eraseColor(shapeColor);
83 {
84 // Make the bitmap non-uniform color, so that it can not be optimized as uniform drawRect.
85 SkCanvas bitmapCanvas(bitmap);
86 SkPaint p;
87 p.setColor(SK_ColorWHITE);
88 SkASSERT(shapeColor != SK_ColorWHITE);
89 bitmapCanvas.drawRect(SkRect::MakeWH(SkIntToScalar(7), SkIntToScalar(7)), p);
90 }
91
92 SkRect targetRect(SkRect::MakeWH(SkIntToScalar(kTestRectSize), SkIntToScalar(kTestRectSize)));
93 SkPaint layerPaint;
94 layerPaint.setColor(SkColorSetARGB(129, 0, 0, 0));
95 canvas->saveLayer(&targetRect, &layerPaint);
96 SkPaint drawPaint;
97 installDetector(&drawPaint);
98 canvas->drawImage(bitmap.asImage(), 0, 0, SkSamplingOptions(), &drawPaint);
99 canvas->restore();
100}
SkASSERT
#define SkASSERT(cond)
Definition: SkAssert.h:116
SK_ColorWHITE
constexpr SkColor SK_ColorWHITE
Definition: SkColor.h:122
SkCanvas::saveLayer
int saveLayer(const SkRect *bounds, const SkPaint *paint)
Definition: SkCanvas.cpp:496
SkCanvas::restore
void restore()
Definition: SkCanvas.cpp:461
SkCanvas::drawImage
void drawImage(const SkImage *image, SkScalar left, SkScalar top)
Definition: SkCanvas.h:1528
SkPaint::setColor
void setColor(SkColor color)
Definition: SkPaint.cpp:119
bitmap
Definition: bitmap.py:1
dart_profiler_symbols.p
p
Definition: dart_profiler_symbols.py:55
SkRect::MakeWH
static constexpr SkRect MakeWH(float w, float h)
Definition: SkRect.h:609

◆ draw_save_layer_draw_rect_restore_sequence()

static void draw_save_layer_draw_rect_restore_sequence ( SkCanvas *  canvas,
SkColor  shapeColor,
InstallDetectorFunc  installDetector 
)
static

Definition at line 63 of file recordopts.cpp.

64 {
65 SkRect targetRect(SkRect::MakeWH(SkIntToScalar(kTestRectSize), SkIntToScalar(kTestRectSize)));
66 SkPaint layerPaint;
67 layerPaint.setColor(SkColorSetARGB(128, 0, 0, 0));
68 canvas->saveLayer(&targetRect, &layerPaint);
69 SkPaint drawPaint;
70 drawPaint.setColor(shapeColor);
71 installDetector(&drawPaint);
72 canvas->drawRect(targetRect, drawPaint);
73 canvas->restore();
74}
SkCanvas::drawRect
void drawRect(const SkRect &rect, const SkPaint &paint)
Definition: SkCanvas.cpp:1673

◆ draw_svg_opacity_and_filter_layer_sequence()

static void draw_svg_opacity_and_filter_layer_sequence ( SkCanvas *  canvas,
SkColor  shapeColor,
InstallDetectorFunc  installDetector 
)
static

Definition at line 104 of file recordopts.cpp.

105 {
106
107 SkRect targetRect(SkRect::MakeWH(SkIntToScalar(kTestRectSize), SkIntToScalar(kTestRectSize)));
108 sk_sp<SkPicture> shape;
109 {
110 SkPictureRecorder recorder;
111 SkCanvas* recordCanvas = recorder.beginRecording(SkIntToScalar(kTestRectSize + 2),
112 SkIntToScalar(kTestRectSize + 2));
113 SkPaint shapePaint;
114 shapePaint.setColor(shapeColor);
115 recordCanvas->drawRect(targetRect, shapePaint);
116 shape = recorder.finishRecordingAsPicture();
117 }
118
119 SkPaint layerPaint;
120 layerPaint.setColor(SkColorSetARGB(130, 0, 0, 0));
121 canvas->saveLayer(&targetRect, &layerPaint);
122 canvas->save();
123 canvas->clipRect(targetRect);
124 SkPaint drawPaint;
125 drawPaint.setImageFilter(SkImageFilters::Picture(shape));
126 installDetector(&drawPaint);
127 canvas->saveLayer(&targetRect, &drawPaint);
128 canvas->restore();
129 canvas->restore();
130 canvas->restore();
131}
SkCanvas::clipRect
void clipRect(const SkRect &rect, SkClipOp op, bool doAntiAlias)
Definition: SkCanvas.cpp:1361
SkCanvas::save
int save()
Definition: SkCanvas.cpp:447
SkImageFilters::Picture
static sk_sp< SkImageFilter > Picture(sk_sp< SkPicture > pic, const SkRect &targetRect)
Definition: SkPictureImageFilter.cpp:66
SkPaint::setImageFilter
void setImageFilter(sk_sp< SkImageFilter > imageFilter)
sk_sp< SkPicture >

◆ install_detector_color_filter()

static void install_detector_color_filter ( SkPaint *  drawPaint)
static

Definition at line 44 of file recordopts.cpp.

44 {
45 drawPaint->setColorFilter(make_detector_color_filter());
46}
SkPaint::setColorFilter
void setColorFilter(sk_sp< SkColorFilter > colorFilter)
make_detector_color_filter
static sk_sp< SkColorFilter > make_detector_color_filter()
Definition: recordopts.cpp:33

◆ install_detector_image_filter()

static void install_detector_image_filter ( SkPaint *  drawPaint)
static

Definition at line 49 of file recordopts.cpp.

49 {
50 drawPaint->setImageFilter(SkImageFilters::ColorFilter(
51 make_detector_color_filter(), drawPaint->refImageFilter()));
52}
SkImageFilters::ColorFilter
static sk_sp< SkImageFilter > ColorFilter(sk_sp< SkColorFilter > cf, sk_sp< SkImageFilter > input, const CropRect &cropRect={})
Definition: SkColorFilterImageFilter.cpp:72
SkPaint::refImageFilter
sk_sp< SkImageFilter > refImageFilter() const

◆ make_detector_color_filter()

static sk_sp< SkColorFilter > make_detector_color_filter ( )
static

Definition at line 33 of file recordopts.cpp.

33 {
34 uint8_t tableA[256] = { 0, };
35 uint8_t tableR[256] = { 0, };
36 uint8_t tableG[256] = { 0, };
37 uint8_t tableB[256] = { 0, };
38 tableA[255] = 255;
39 tableG[kDetectorGreenValue] = 255;
40 return SkColorFilters::TableARGB(tableA, tableR, tableG, tableB);
41}
SkColorFilters::TableARGB
static sk_sp< SkColorFilter > TableARGB(const uint8_t tableA[256], const uint8_t tableR[256], const uint8_t tableG[256], const uint8_t tableB[256])
Definition: SkTableColorFilter.cpp:59

◆ no_detector_install()

static void no_detector_install ( SkPaint *  )
static

Definition at line 54 of file recordopts.cpp.

54 {
55}

Variable Documentation

◆ kDetectorGreenValue

constexpr int kDetectorGreenValue = 50
constexpr

Definition at line 25 of file recordopts.cpp.

◆ kTestRectSize

constexpr int kTestRectSize = 50
constexpr

Definition at line 24 of file recordopts.cpp.

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