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skia2/samplecode/SampleAll.cpp
reed 7b81994d95 Revert[2] of "stop using drawSprite (at least w/ no filters) as it is going away" 
Fixed assert in test that was calling GrRecordReplaceDraw(). That function now uses
drawBitmap, so updated the test to check for that (instead of drawSprite).

This reverts commit 21b7663470.

BUG=skia:
TBR=

Review URL: https://codereview.chromium.org/1410343011
2015-11-03 07:12:16 -08:00

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/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SampleCode.h"
#include "SkBlurMask.h"
#include "SkCanvas.h"
#include "SkView.h"
#include "Sk1DPathEffect.h"
#include "Sk2DPathEffect.h"
#include "SkBlurMaskFilter.h"
#include "SkColorFilter.h"
#include "SkColorPriv.h"
#include "SkCornerPathEffect.h"
#include "SkDashPathEffect.h"
#include "SkDiscretePathEffect.h"
#include "SkEmbossMaskFilter.h"
#include "SkReadBuffer.h"
#include "SkWriteBuffer.h"
#include "SkGradientShader.h"
#include "SkImageDecoder.h"
#include "SkLayerRasterizer.h"
#include "SkMath.h"
#include "SkPath.h"
#include "SkPictureRecorder.h"
#include "SkRegion.h"
#include "SkShader.h"
#include "SkComposeShader.h"
#include "SkCornerPathEffect.h"
#include "SkPathMeasure.h"
#include "SkPicture.h"
#include "SkRandom.h"
#include "SkTypeface.h"
#include "SkUtils.h"
#include "SkXfermode.h"
#include <math.h>
static inline SkPMColor rgb2gray(SkPMColor c) {
unsigned r = SkGetPackedR32(c);
unsigned g = SkGetPackedG32(c);
unsigned b = SkGetPackedB32(c);
unsigned x = (r * 5 + g * 7 + b * 4) >> 4;
return SkPackARGB32(0, x, x, x) | (c & (SK_A32_MASK << SK_A32_SHIFT));
}
class SkGrayScaleColorFilter : public SkColorFilter {
public:
virtual void filterSpan(const SkPMColor src[], int count,
SkPMColor result[]) const override {
for (int i = 0; i < count; i++)
result[i] = rgb2gray(src[i]);
}
};
class SkChannelMaskColorFilter : public SkColorFilter {
public:
SkChannelMaskColorFilter(U8CPU redMask, U8CPU greenMask, U8CPU blueMask) {
fMask = SkPackARGB32(0xFF, redMask, greenMask, blueMask);
}
virtual void filterSpan(const SkPMColor src[], int count,
SkPMColor result[]) const override {
SkPMColor mask = fMask;
for (int i = 0; i < count; i++) {
result[i] = src[i] & mask;
}
}
private:
SkPMColor fMask;
};
///////////////////////////////////////////////////////////
static void r0(SkLayerRasterizer::Builder* rastBuilder, SkPaint& p) {
p.setMaskFilter(SkBlurMaskFilter::Create(kNormal_SkBlurStyle,
SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(3)),
SkBlurMaskFilter::kNone_BlurFlag))->unref();
rastBuilder->addLayer(p, SkIntToScalar(3), SkIntToScalar(3));
p.setMaskFilter(nullptr);
p.setStyle(SkPaint::kStroke_Style);
p.setStrokeWidth(SK_Scalar1);
rastBuilder->addLayer(p);
p.setAlpha(0x11);
p.setStyle(SkPaint::kFill_Style);
p.setXfermodeMode(SkXfermode::kSrc_Mode);
rastBuilder->addLayer(p);
}
static void r1(SkLayerRasterizer::Builder* rastBuilder, SkPaint& p) {
rastBuilder->addLayer(p);
p.setAlpha(0x40);
p.setXfermodeMode(SkXfermode::kSrc_Mode);
p.setStyle(SkPaint::kStroke_Style);
p.setStrokeWidth(SK_Scalar1*2);
rastBuilder->addLayer(p);
}
static void r2(SkLayerRasterizer::Builder* rastBuilder, SkPaint& p) {
p.setStyle(SkPaint::kStrokeAndFill_Style);
p.setStrokeWidth(SK_Scalar1*4);
rastBuilder->addLayer(p);
p.setStyle(SkPaint::kStroke_Style);
p.setStrokeWidth(SK_Scalar1*3/2);
p.setXfermodeMode(SkXfermode::kClear_Mode);
rastBuilder->addLayer(p);
}
static void r3(SkLayerRasterizer::Builder* rastBuilder, SkPaint& p) {
p.setStyle(SkPaint::kStroke_Style);
p.setStrokeWidth(SK_Scalar1*3);
rastBuilder->addLayer(p);
p.setAlpha(0x20);
p.setStyle(SkPaint::kFill_Style);
p.setXfermodeMode(SkXfermode::kSrc_Mode);
rastBuilder->addLayer(p);
}
static void r4(SkLayerRasterizer::Builder* rastBuilder, SkPaint& p) {
p.setAlpha(0x60);
rastBuilder->addLayer(p, SkIntToScalar(3), SkIntToScalar(3));
p.setAlpha(0xFF);
p.setXfermodeMode(SkXfermode::kClear_Mode);
rastBuilder->addLayer(p, SK_Scalar1*3/2, SK_Scalar1*3/2);
p.setXfermode(nullptr);
rastBuilder->addLayer(p);
}
static void r5(SkLayerRasterizer::Builder* rastBuilder, SkPaint& p) {
rastBuilder->addLayer(p);
p.setPathEffect(SkDiscretePathEffect::Create(SK_Scalar1*4, SK_Scalar1*3))->unref();
p.setXfermodeMode(SkXfermode::kSrcOut_Mode);
rastBuilder->addLayer(p);
}
static void r6(SkLayerRasterizer::Builder* rastBuilder, SkPaint& p) {
rastBuilder->addLayer(p);
p.setAntiAlias(false);
SkLayerRasterizer::Builder rastBuilder2;
r5(&rastBuilder2, p);
p.setRasterizer(rastBuilder2.detachRasterizer())->unref();
p.setXfermodeMode(SkXfermode::kClear_Mode);
rastBuilder->addLayer(p);
}
class Dot2DPathEffect : public Sk2DPathEffect {
public:
Dot2DPathEffect(SkScalar radius, const SkMatrix& matrix)
: Sk2DPathEffect(matrix), fRadius(radius) {}
SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(Dot2DPathEffect)
protected:
void next(const SkPoint& loc, int u, int v, SkPath* dst) const override {
dst->addCircle(loc.fX, loc.fY, fRadius);
}
void flatten(SkWriteBuffer& buffer) const override {
this->INHERITED::flatten(buffer);
buffer.writeScalar(fRadius);
}
private:
SkScalar fRadius;
typedef Sk2DPathEffect INHERITED;
};
static void r7(SkLayerRasterizer::Builder* rastBuilder, SkPaint& p) {
SkMatrix lattice;
lattice.setScale(SK_Scalar1*6, SK_Scalar1*6, 0, 0);
lattice.postSkew(SK_Scalar1/3, 0, 0, 0);
p.setPathEffect(new Dot2DPathEffect(SK_Scalar1*4, lattice))->unref();
rastBuilder->addLayer(p);
}
static void r8(SkLayerRasterizer::Builder* rastBuilder, SkPaint& p) {
rastBuilder->addLayer(p);
SkMatrix lattice;
lattice.setScale(SK_Scalar1*6, SK_Scalar1*6, 0, 0);
lattice.postSkew(SK_Scalar1/3, 0, 0, 0);
p.setPathEffect(new Dot2DPathEffect(SK_Scalar1*2, lattice))->unref();
p.setXfermodeMode(SkXfermode::kClear_Mode);
rastBuilder->addLayer(p);
p.setPathEffect(nullptr);
p.setXfermode(nullptr);
p.setStyle(SkPaint::kStroke_Style);
p.setStrokeWidth(SK_Scalar1);
rastBuilder->addLayer(p);
}
static void r9(SkLayerRasterizer::Builder* rastBuilder, SkPaint& p) {
rastBuilder->addLayer(p);
SkMatrix lattice;
lattice.setScale(SK_Scalar1, SK_Scalar1*6, 0, 0);
lattice.postRotate(SkIntToScalar(30), 0, 0);
p.setPathEffect(SkLine2DPathEffect::Create(SK_Scalar1*2, lattice))->unref();
p.setXfermodeMode(SkXfermode::kClear_Mode);
rastBuilder->addLayer(p);
p.setPathEffect(nullptr);
p.setXfermode(nullptr);
p.setStyle(SkPaint::kStroke_Style);
p.setStrokeWidth(SK_Scalar1);
rastBuilder->addLayer(p);
}
typedef void (*raster_proc)(SkLayerRasterizer::Builder*, SkPaint&);
static const raster_proc gRastProcs[] = {
r0, r1, r2, r3, r4, r5, r6, r7, r8, r9
};
static const struct {
SkColor fMul, fAdd;
} gLightingColors[] = {
{ 0x808080, 0x800000 }, // general case
{ 0x707070, 0x707070 }, // no-pin case
{ 0xFFFFFF, 0x800000 }, // just-add case
{ 0x808080, 0x000000 }, // just-mul case
{ 0xFFFFFF, 0x000000 } // identity case
};
static void apply_shader(SkPaint* paint, int index) {
raster_proc proc = gRastProcs[index];
if (proc) {
SkPaint p;
SkLayerRasterizer::Builder rastBuilder;
p.setAntiAlias(true);
proc(&rastBuilder, p);
paint->setRasterizer(rastBuilder.detachRasterizer())->unref();
}
#if 1
SkScalar dir[] = { SK_Scalar1, SK_Scalar1, SK_Scalar1 };
paint->setMaskFilter(SkBlurMaskFilter::CreateEmboss(
SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(3)), dir,
SK_Scalar1/4, SkIntToScalar(4)))->unref();
paint->setColor(SK_ColorBLUE);
#endif
}
class DemoView : public SampleView {
public:
DemoView() {}
protected:
// overrides from SkEventSink
virtual bool onQuery(SkEvent* evt) {
if (SampleCode::TitleQ(*evt)) {
SampleCode::TitleR(evt, "Demo");
return true;
}
return this->INHERITED::onQuery(evt);
}
virtual bool onClick(Click* click) {
return this->INHERITED::onClick(click);
}
void makePath(SkPath& path) {
path.addCircle(SkIntToScalar(20), SkIntToScalar(20), SkIntToScalar(20),
SkPath::kCCW_Direction);
for (int index = 0; index < 10; index++) {
SkScalar x = (float) cos(index / 10.0f * 2 * 3.1415925358f);
SkScalar y = (float) sin(index / 10.0f * 2 * 3.1415925358f);
x *= index & 1 ? 7 : 14;
y *= index & 1 ? 7 : 14;
x += SkIntToScalar(20);
y += SkIntToScalar(20);
if (index == 0)
path.moveTo(x, y);
else
path.lineTo(x, y);
}
path.close();
}
virtual void onDrawContent(SkCanvas* canvas) {
canvas->save();
this->drawPicture(canvas, 0);
canvas->restore();
{
SkPictureRecorder recorder;
{
SkCanvas* record = recorder.beginRecording(320, 480, nullptr, 0);
this->drawPicture(record, 120);
}
SkAutoTUnref<SkPicture> picture(recorder.endRecording());
canvas->translate(0, SkIntToScalar(120));
SkRect clip;
clip.set(0, 0, SkIntToScalar(160), SkIntToScalar(160));
do {
canvas->save();
canvas->clipRect(clip);
picture->playback(canvas);
canvas->restore();
if (clip.fRight < SkIntToScalar(320))
clip.offset(SkIntToScalar(160), 0);
else if (clip.fBottom < SkIntToScalar(480))
clip.offset(-SkIntToScalar(320), SkIntToScalar(160));
else
break;
} while (true);
}
}
void drawPicture(SkCanvas* canvas, int spriteOffset) {
SkMatrix matrix; matrix.reset();
SkPaint paint;
SkPath path;
SkPoint start = {0, 0};
SkPoint stop = { SkIntToScalar(40), SkIntToScalar(40) };
SkRect rect = {0, 0, SkIntToScalar(40), SkIntToScalar(40) };
SkRect rect2 = {0, 0, SkIntToScalar(65), SkIntToScalar(20) };
SkScalar left = 0, top = 0, x = 0, y = 0;
int index;
char ascii[] = "ascii...";
int asciiLength = sizeof(ascii) - 1;
char utf8[] = "utf8" "\xe2\x80\xa6";
short utf16[] = {'u', 't', 'f', '1', '6', 0x2026 };
short utf16simple[] = {'u', 't', 'f', '1', '6', '!' };
makePath(path);
SkTDArray<SkPoint>(pos);
pos.setCount(asciiLength);
for (index = 0; index < asciiLength; index++)
pos[index].set(SkIntToScalar((unsigned int)index * 10),
SkIntToScalar((unsigned int)index * 2));
SkTDArray<SkPoint>(pos2);
pos2.setCount(asciiLength);
for (index = 0; index < asciiLength; index++)
pos2[index].set(SkIntToScalar((unsigned int)index * 10),
SkIntToScalar(20));
// shaders
SkPoint linearPoints[] = { { 0, 0, }, { SkIntToScalar(40), SkIntToScalar(40) } };
SkColor linearColors[] = { SK_ColorRED, SK_ColorBLUE };
SkScalar* linearPos = nullptr;
int linearCount = 2;
SkShader::TileMode linearMode = SkShader::kMirror_TileMode;
SkShader* linear = SkGradientShader::CreateLinear(linearPoints,
linearColors, linearPos, linearCount, linearMode);
SkPoint radialCenter = { SkIntToScalar(25), SkIntToScalar(25) };
SkScalar radialRadius = SkIntToScalar(25);
SkColor radialColors[] = { SK_ColorGREEN, SK_ColorGRAY, SK_ColorRED };
SkScalar radialPos[] = { 0, SkIntToScalar(3) / 5, SkIntToScalar(1)};
int radialCount = 3;
SkShader::TileMode radialMode = SkShader::kRepeat_TileMode;
SkShader* radial = SkGradientShader::CreateRadial(radialCenter,
radialRadius, radialColors, radialPos, radialCount,
radialMode);
SkEmbossMaskFilter::Light light;
light.fDirection[0] = SK_Scalar1/2;
light.fDirection[1] = SK_Scalar1/2;
light.fDirection[2] = SK_Scalar1/3;
light.fAmbient = 0x48;
light.fSpecular = 0x80;
SkScalar sigma = SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(12)/5);
SkEmbossMaskFilter* embossFilter = SkEmbossMaskFilter::Create(sigma, light);
SkXfermode* xfermode = SkXfermode::Create(SkXfermode::kXor_Mode);
SkColorFilter* lightingFilter = SkColorFilter::CreateLightingFilter(
0xff89bc45, 0xff112233);
canvas->save();
canvas->translate(SkIntToScalar(0), SkIntToScalar(5));
paint.setAntiAlias(true);
paint.setFilterQuality(kLow_SkFilterQuality);
// !!! draw through a clip
paint.setColor(SK_ColorLTGRAY);
paint.setStyle(SkPaint::kFill_Style);
SkRect clip = {0, 0, SkIntToScalar(320), SkIntToScalar(120)};
canvas->clipRect(clip);
paint.setShader(SkShader::CreateBitmapShader(fTx,
SkShader::kMirror_TileMode, SkShader::kRepeat_TileMode))->unref();
canvas->drawPaint(paint);
canvas->save();
// line (exercises xfermode, colorShader, colorFilter, filterShader)
paint.setColor(SK_ColorGREEN);
paint.setStrokeWidth(SkIntToScalar(10));
paint.setStyle(SkPaint::kStroke_Style);
paint.setXfermode(xfermode)->unref();
paint.setColorFilter(lightingFilter)->unref();
canvas->drawLine(start.fX, start.fY, stop.fX, stop.fY, paint); // should not be green
paint.setXfermode(nullptr);
paint.setColorFilter(nullptr);
// rectangle
paint.setStyle(SkPaint::kFill_Style);
canvas->translate(SkIntToScalar(50), 0);
paint.setColor(SK_ColorYELLOW);
paint.setShader(linear)->unref();
paint.setPathEffect(pathEffectTest())->unref();
canvas->drawRect(rect, paint);
paint.setPathEffect(nullptr);
// circle w/ emboss & transparent (exercises 3dshader)
canvas->translate(SkIntToScalar(50), 0);
paint.setMaskFilter(embossFilter)->unref();
canvas->drawOval(rect, paint);
canvas->translate(SkIntToScalar(10), SkIntToScalar(10));
// paint.setShader(transparentShader)->unref();
canvas->drawOval(rect, paint);
canvas->translate(0, SkIntToScalar(-10));
// path
canvas->translate(SkIntToScalar(50), 0);
paint.setColor(SK_ColorRED);
paint.setStyle(SkPaint::kStroke_Style);
paint.setStrokeWidth(SkIntToScalar(5));
paint.setShader(radial)->unref();
paint.setMaskFilter(nullptr);
canvas->drawPath(path, paint);
paint.setShader(nullptr);
// bitmap
canvas->translate(SkIntToScalar(50), 0);
paint.setStyle(SkPaint::kFill_Style);
canvas->drawBitmap(fBug, left, top, &paint);
canvas->translate(-SkIntToScalar(30), SkIntToScalar(30));
paint.setShader(shaderTest())->unref(); // test compose shader
canvas->drawRect(rect2, paint);
paint.setShader(nullptr);
canvas->restore();
// text
canvas->translate(0, SkIntToScalar(60));
canvas->save();
paint.setColor(SK_ColorGRAY);
canvas->drawPosText(ascii, asciiLength, pos.begin(), paint);
canvas->drawPosText(ascii, asciiLength, pos2.begin(), paint);
canvas->translate(SkIntToScalar(50), 0);
paint.setColor(SK_ColorCYAN);
canvas->drawText(utf8, sizeof(utf8) - 1, x, y, paint);
canvas->translate(SkIntToScalar(30), 0);
paint.setColor(SK_ColorMAGENTA);
paint.setTextEncoding(SkPaint::kUTF16_TextEncoding);
matrix.setTranslate(SkIntToScalar(10), SkIntToScalar(10));
canvas->drawTextOnPath((void*) utf16, sizeof(utf16), path, &matrix, paint);
canvas->translate(0, SkIntToScalar(20));
canvas->drawTextOnPath((void*) utf16simple, sizeof(utf16simple), path, &matrix, paint);
canvas->restore();
canvas->translate(0, SkIntToScalar(60));
paint.setTextEncoding(SkPaint::kUTF8_TextEncoding);
canvas->restore();
}
virtual SkView::Click* onFindClickHandler(SkScalar x, SkScalar y, unsigned modi) {
fClickPt.set(x, y);
this->inval(nullptr);
return this->INHERITED::onFindClickHandler(x, y, modi);
}
SkPathEffect* pathEffectTest() {
static const int gXY[] = { 1, 0, 0, -1, 2, -1, 3, 0, 2, 1, 0, 1 };
SkScalar gPhase = 0;
SkPath path;
path.moveTo(SkIntToScalar(gXY[0]), SkIntToScalar(gXY[1]));
for (unsigned i = 2; i < SK_ARRAY_COUNT(gXY); i += 2)
path.lineTo(SkIntToScalar(gXY[i]), SkIntToScalar(gXY[i+1]));
path.close();
path.offset(SkIntToScalar(-6), 0);
SkPathEffect* outer = SkPath1DPathEffect::Create(path, SkIntToScalar(12),
gPhase, SkPath1DPathEffect::kRotate_Style);
SkPathEffect* inner = SkDiscretePathEffect::Create(SkIntToScalar(2),
SkIntToScalar(1)/10); // SkCornerPathEffect(SkIntToScalar(2));
SkPathEffect* result = SkComposePathEffect::Create(outer, inner);
outer->unref();
inner->unref();
return result;
}
SkShader* shaderTest() {
SkPoint pts[] = { { 0, 0, }, { SkIntToScalar(100), 0 } };
SkColor colors[] = { SK_ColorRED, SK_ColorBLUE };
SkShader* shaderA = SkGradientShader::CreateLinear(pts, colors, nullptr,
2, SkShader::kClamp_TileMode);
pts[1].set(0, SkIntToScalar(100));
SkColor colors2[] = {SK_ColorBLACK, SkColorSetARGB(0x80, 0, 0, 0)};
SkShader* shaderB = SkGradientShader::CreateLinear(pts, colors2, nullptr,
2, SkShader::kClamp_TileMode);
SkXfermode* mode = SkXfermode::Create(SkXfermode::kDstIn_Mode);
SkShader* result = new SkComposeShader(shaderA, shaderB, mode);
shaderA->unref();
shaderB->unref();
mode->unref();
return result;
}
virtual void startTest() {
SkImageDecoder::DecodeFile("/Users/caryclark/Desktop/bugcirc.gif", &fBug);
SkImageDecoder::DecodeFile("/Users/caryclark/Desktop/tbcirc.gif", &fTb);
SkImageDecoder::DecodeFile("/Users/caryclark/Desktop/05psp04.gif", &fTx);
}
void drawRaster(SkCanvas* canvas) {
for (size_t index = 0; index < SK_ARRAY_COUNT(gRastProcs); index++)
drawOneRaster(canvas);
}
void drawOneRaster(SkCanvas* canvas) {
canvas->save();
SkScalar x = SkIntToScalar(20);
SkScalar y = SkIntToScalar(40);
SkPaint paint;
paint.setAntiAlias(true);
paint.setTextSize(SkIntToScalar(48));
paint.setTypeface(SkTypeface::CreateFromName("sans-serif",
SkTypeface::kBold));
SkString str("GOOGLE");
for (size_t i = 0; i < SK_ARRAY_COUNT(gRastProcs); i++) {
apply_shader(&paint, (int)i);
// paint.setMaskFilter(nullptr);
// paint.setColor(SK_ColorBLACK);
#if 01
int index = i % SK_ARRAY_COUNT(gLightingColors);
paint.setColorFilter(SkColorFilter::CreateLightingFilter(
gLightingColors[index].fMul,
gLightingColors[index].fAdd))->unref();
#endif
canvas->drawText(str.c_str(), str.size(), x, y, paint);
SkRect oval = { x, y - SkIntToScalar(40), x + SkIntToScalar(40), y };
paint.setStyle(SkPaint::kStroke_Style);
canvas->drawOval(oval, paint);
paint.setStyle(SkPaint::kFill_Style);
y += paint.getFontSpacing();
}
canvas->restore();
}
private:
SkPoint fClickPt;
SkBitmap fBug, fTb, fTx;
typedef SampleView INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
static SkView* MyFactory() { return new DemoView; }
static SkViewRegister reg(MyFactory);
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