| #include "SampleCode.h" |
| #include "SkCanvas.h" |
| #include "SkView.h" |
| #include "Sk1DPathEffect.h" |
| #include "Sk2DPathEffect.h" |
| #include "SkAvoidXfermode.h" |
| #include "SkBlurMaskFilter.h" |
| #include "SkColorFilter.h" |
| #include "SkColorPriv.h" |
| #include "SkCornerPathEffect.h" |
| #include "SkDashPathEffect.h" |
| #include "SkDiscretePathEffect.h" |
| #include "SkEmbossMaskFilter.h" |
| #include "SkGradientShader.h" |
| #include "SkImageDecoder.h" |
| #include "SkLayerRasterizer.h" |
| #include "SkMath.h" |
| #include "SkPath.h" |
| #include "SkRegion.h" |
| #include "SkShader.h" |
| #include "SkComposeShader.h" |
| #include "SkCornerPathEffect.h" |
| #include "SkPathMeasure.h" |
| #include "SkPicture.h" |
| #include "SkRandom.h" |
| #include "SkTransparentShader.h" |
| #include "SkTypeface.h" |
| #include "SkUnitMappers.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[]) |
| { |
| 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[]) |
| { |
| SkPMColor mask = fMask; |
| for (int i = 0; i < count; i++) |
| result[i] = src[i] & mask; |
| } |
| |
| private: |
| SkPMColor fMask; |
| }; |
| |
| /////////////////////////////////////////////////////////// |
| |
| static void r0(SkLayerRasterizer* rast, SkPaint& p) |
| { |
| p.setMaskFilter(SkBlurMaskFilter::Create(SkIntToScalar(3), |
| SkBlurMaskFilter::kNormal_BlurStyle))->unref(); |
| rast->addLayer(p, SkIntToScalar(3), SkIntToScalar(3)); |
| |
| p.setMaskFilter(NULL); |
| p.setStyle(SkPaint::kStroke_Style); |
| p.setStrokeWidth(SK_Scalar1); |
| rast->addLayer(p); |
| |
| p.setAlpha(0x11); |
| p.setStyle(SkPaint::kFill_Style); |
| p.setXfermodeMode(SkXfermode::kSrc_Mode); |
| rast->addLayer(p); |
| } |
| |
| static void r1(SkLayerRasterizer* rast, SkPaint& p) |
| { |
| rast->addLayer(p); |
| |
| p.setAlpha(0x40); |
| p.setXfermodeMode(SkXfermode::kSrc_Mode); |
| p.setStyle(SkPaint::kStroke_Style); |
| p.setStrokeWidth(SK_Scalar1*2); |
| rast->addLayer(p); |
| } |
| |
| static void r2(SkLayerRasterizer* rast, SkPaint& p) |
| { |
| p.setStyle(SkPaint::kStrokeAndFill_Style); |
| p.setStrokeWidth(SK_Scalar1*4); |
| rast->addLayer(p); |
| |
| p.setStyle(SkPaint::kStroke_Style); |
| p.setStrokeWidth(SK_Scalar1*3/2); |
| p.setXfermodeMode(SkXfermode::kClear_Mode); |
| rast->addLayer(p); |
| } |
| |
| static void r3(SkLayerRasterizer* rast, SkPaint& p) |
| { |
| p.setStyle(SkPaint::kStroke_Style); |
| p.setStrokeWidth(SK_Scalar1*3); |
| rast->addLayer(p); |
| |
| p.setAlpha(0x20); |
| p.setStyle(SkPaint::kFill_Style); |
| p.setXfermodeMode(SkXfermode::kSrc_Mode); |
| rast->addLayer(p); |
| } |
| |
| static void r4(SkLayerRasterizer* rast, SkPaint& p) |
| { |
| p.setAlpha(0x60); |
| rast->addLayer(p, SkIntToScalar(3), SkIntToScalar(3)); |
| |
| p.setAlpha(0xFF); |
| p.setXfermodeMode(SkXfermode::kClear_Mode); |
| rast->addLayer(p, SK_Scalar1*3/2, SK_Scalar1*3/2); |
| |
| p.setXfermode(NULL); |
| rast->addLayer(p); |
| } |
| |
| static void r5(SkLayerRasterizer* rast, SkPaint& p) |
| { |
| rast->addLayer(p); |
| |
| p.setPathEffect(new SkDiscretePathEffect(SK_Scalar1*4, SK_Scalar1*3))->unref(); |
| p.setXfermodeMode(SkXfermode::kSrcOut_Mode); |
| rast->addLayer(p); |
| } |
| |
| static void r6(SkLayerRasterizer* rast, SkPaint& p) |
| { |
| rast->addLayer(p); |
| |
| p.setAntiAlias(false); |
| SkLayerRasterizer* rast2 = new SkLayerRasterizer; |
| r5(rast2, p); |
| p.setRasterizer(rast2)->unref(); |
| p.setXfermodeMode(SkXfermode::kClear_Mode); |
| rast->addLayer(p); |
| } |
| |
| class Dot2DPathEffect : public Sk2DPathEffect { |
| public: |
| Dot2DPathEffect(SkScalar radius, const SkMatrix& matrix) |
| : Sk2DPathEffect(matrix), fRadius(radius) {} |
| |
| virtual void flatten(SkFlattenableWriteBuffer& buffer) |
| { |
| this->INHERITED::flatten(buffer); |
| |
| buffer.writeScalar(fRadius); |
| } |
| virtual Factory getFactory() { return CreateProc; } |
| |
| protected: |
| virtual void next(const SkPoint& loc, int u, int v, SkPath* dst) |
| { |
| dst->addCircle(loc.fX, loc.fY, fRadius); |
| } |
| |
| Dot2DPathEffect(SkFlattenableReadBuffer& buffer) : Sk2DPathEffect(buffer) |
| { |
| fRadius = buffer.readScalar(); |
| } |
| private: |
| SkScalar fRadius; |
| |
| static SkFlattenable* CreateProc(SkFlattenableReadBuffer& buffer) |
| { |
| return new Dot2DPathEffect(buffer); |
| } |
| |
| typedef Sk2DPathEffect INHERITED; |
| }; |
| |
| static void r7(SkLayerRasterizer* rast, 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(); |
| rast->addLayer(p); |
| } |
| |
| static void r8(SkLayerRasterizer* rast, SkPaint& p) |
| { |
| rast->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); |
| rast->addLayer(p); |
| |
| p.setPathEffect(NULL); |
| p.setXfermode(NULL); |
| p.setStyle(SkPaint::kStroke_Style); |
| p.setStrokeWidth(SK_Scalar1); |
| rast->addLayer(p); |
| } |
| |
| class Line2DPathEffect : public Sk2DPathEffect { |
| public: |
| Line2DPathEffect(SkScalar width, const SkMatrix& matrix) |
| : Sk2DPathEffect(matrix), fWidth(width) {} |
| |
| virtual bool filterPath(SkPath* dst, const SkPath& src, SkScalar* width) |
| { |
| if (this->INHERITED::filterPath(dst, src, width)) |
| { |
| *width = fWidth; |
| return true; |
| } |
| return false; |
| } |
| |
| virtual Factory getFactory() { return CreateProc; } |
| virtual void flatten(SkFlattenableWriteBuffer& buffer) |
| { |
| this->INHERITED::flatten(buffer); |
| buffer.writeScalar(fWidth); |
| } |
| protected: |
| virtual void nextSpan(int u, int v, int ucount, SkPath* dst) |
| { |
| if (ucount > 1) |
| { |
| SkPoint src[2], dstP[2]; |
| |
| src[0].set(SkIntToScalar(u) + SK_ScalarHalf, |
| SkIntToScalar(v) + SK_ScalarHalf); |
| src[1].set(SkIntToScalar(u+ucount) + SK_ScalarHalf, |
| SkIntToScalar(v) + SK_ScalarHalf); |
| this->getMatrix().mapPoints(dstP, src, 2); |
| |
| dst->moveTo(dstP[0]); |
| dst->lineTo(dstP[1]); |
| } |
| } |
| |
| Line2DPathEffect(SkFlattenableReadBuffer& buffer) : Sk2DPathEffect(buffer) |
| { |
| fWidth = buffer.readScalar(); |
| } |
| |
| private: |
| SkScalar fWidth; |
| |
| static SkFlattenable* CreateProc(SkFlattenableReadBuffer& buffer) { return new Line2DPathEffect(buffer); } |
| |
| typedef Sk2DPathEffect INHERITED; |
| }; |
| |
| static void r9(SkLayerRasterizer* rast, SkPaint& p) |
| { |
| rast->addLayer(p); |
| |
| SkMatrix lattice; |
| lattice.setScale(SK_Scalar1, SK_Scalar1*6, 0, 0); |
| lattice.postRotate(SkIntToScalar(30), 0, 0); |
| p.setPathEffect(new Line2DPathEffect(SK_Scalar1*2, lattice))->unref(); |
| p.setXfermodeMode(SkXfermode::kClear_Mode); |
| rast->addLayer(p); |
| |
| p.setPathEffect(NULL); |
| p.setXfermode(NULL); |
| p.setStyle(SkPaint::kStroke_Style); |
| p.setStrokeWidth(SK_Scalar1); |
| rast->addLayer(p); |
| } |
| |
| typedef void (*raster_proc)(SkLayerRasterizer*, 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 unsigned color_dist16(uint16_t a, uint16_t b) |
| { |
| unsigned dr = SkAbs32(SkPacked16ToR32(a) - SkPacked16ToR32(b)); |
| unsigned dg = SkAbs32(SkPacked16ToG32(a) - SkPacked16ToG32(b)); |
| unsigned db = SkAbs32(SkPacked16ToB32(a) - SkPacked16ToB32(b)); |
| |
| return SkMax32(dr, SkMax32(dg, db)); |
| } |
| |
| static unsigned scale_dist(unsigned dist, unsigned scale) |
| { |
| dist >>= 6; |
| dist = (dist << 2) | dist; |
| dist = (dist << 4) | dist; |
| return dist; |
| |
| // return SkAlphaMul(dist, scale); |
| } |
| |
| static void apply_shader(SkPaint* paint, int index) |
| { |
| raster_proc proc = gRastProcs[index]; |
| if (proc) |
| { |
| SkPaint p; |
| SkLayerRasterizer* rast = new SkLayerRasterizer; |
| |
| p.setAntiAlias(true); |
| proc(rast, p); |
| paint->setRasterizer(rast)->unref(); |
| } |
| |
| #if 1 |
| SkScalar dir[] = { SK_Scalar1, SK_Scalar1, SK_Scalar1 }; |
| paint->setMaskFilter(SkBlurMaskFilter::CreateEmboss(dir, SK_Scalar1/4, SkIntToScalar(4), SkIntToScalar(3)))->unref(); |
| paint->setColor(SK_ColorBLUE); |
| #endif |
| } |
| |
| static void test_math() |
| { |
| float x; |
| const float PI = 3.141593f; |
| |
| for (x = 0; x < 1; x += 0.05f) |
| printf("atan(%g) = %g\n", x, atanf(x) * 180/PI); |
| for (x = 1; x < 10000000; x *= 2) |
| printf("atan(%g) = %g\n", x, atanf(x) * 180/PI); |
| } |
| |
| class DemoView : public SkView { |
| public: |
| DemoView() |
| { |
| test_math(); |
| } |
| |
| 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 = SkFloatToScalar(cos(index / 10.0f * 2 * 3.1415925358f)); |
| SkScalar y = SkFloatToScalar(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 onDraw(SkCanvas* canvas) |
| { |
| canvas->drawColor(SK_ColorWHITE); |
| canvas->save(); |
| drawPicture(canvas, 0); |
| canvas->restore(); |
| |
| { |
| SkPicture picture; |
| SkCanvas* record = picture.beginRecording(320, 480); |
| drawPicture(record, 120); |
| canvas->translate(0, SkIntToScalar(120)); |
| |
| SkRect clip; |
| clip.set(0, 0, SkIntToScalar(160), SkIntToScalar(160)); |
| do { |
| canvas->save(); |
| canvas->clipRect(clip); |
| picture.draw(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; |
| size_t index; |
| |
| char ascii[] = "ascii..."; |
| size_t 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(index * 10), SkIntToScalar(index * 2)); |
| SkTDArray<SkPoint>(pos2); |
| pos2.setCount(asciiLength); |
| for (index = 0; index < asciiLength; index++) |
| pos2[index].set(SkIntToScalar(index * 10), SkIntToScalar(20)); |
| |
| // shaders |
| SkPoint linearPoints[] = { 0, 0, SkIntToScalar(40), SkIntToScalar(40) }; |
| SkColor linearColors[] = { SK_ColorRED, SK_ColorBLUE }; |
| SkScalar* linearPos = NULL; |
| int linearCount = 2; |
| SkShader::TileMode linearMode = SkShader::kMirror_TileMode; |
| SkUnitMapper* linearMapper = new SkDiscreteMapper(3); |
| SkAutoUnref unmapLinearMapper(linearMapper); |
| SkShader* linear = SkGradientShader::CreateLinear(linearPoints, |
| linearColors, linearPos, linearCount, linearMode, linearMapper); |
| |
| 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; |
| SkUnitMapper* radialMapper = new SkCosineMapper(); |
| SkAutoUnref unmapRadialMapper(radialMapper); |
| SkShader* radial = SkGradientShader::CreateRadial(radialCenter, |
| radialRadius, radialColors, radialPos, radialCount, |
| radialMode, radialMapper); |
| |
| SkTransparentShader* transparentShader = new SkTransparentShader(); |
| 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 radius = SkIntToScalar(12)/5; |
| SkEmbossMaskFilter* embossFilter = new SkEmbossMaskFilter(light, |
| radius); |
| |
| SkXfermode* xfermode = SkXfermode::Create(SkXfermode::kXor_Mode); |
| SkColorFilter* lightingFilter = SkColorFilter::CreateLightingFilter( |
| 0xff89bc45, 0xff112233); |
| |
| canvas->save(); |
| canvas->translate(SkIntToScalar(0), SkIntToScalar(5)); |
| paint.setFlags(SkPaint::kAntiAlias_Flag | SkPaint::kFilterBitmap_Flag); |
| // !!! 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(NULL); |
| paint.setColorFilter(NULL); |
| |
| // 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(NULL); |
| |
| // 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(NULL); |
| canvas->drawPath(path, paint); |
| |
| paint.setShader(NULL); |
| // bitmap, sprite |
| canvas->translate(SkIntToScalar(50), 0); |
| paint.setStyle(SkPaint::kFill_Style); |
| canvas->drawBitmap(fBug, left, top, &paint); |
| canvas->translate(SkIntToScalar(30), 0); |
| canvas->drawSprite(fTb, |
| SkScalarRound(canvas->getTotalMatrix().getTranslateX()), |
| spriteOffset + 10, &paint); |
| |
| canvas->translate(-SkIntToScalar(30), SkIntToScalar(30)); |
| paint.setShader(shaderTest())->unref(); // test compose shader |
| canvas->drawRect(rect2, paint); |
| paint.setShader(NULL); |
| |
| 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(); |
| } |
| |
| /* |
| ./SkColorFilter.h:25:class SkColorFilter : public SkFlattenable { -- abstract |
| static SkColorFilter* CreatXfermodeFilter() *** untested *** |
| static SkColorFilter* CreatePorterDuffFilter() *** untested *** |
| static SkColorFilter* CreateLightingFilter() -- tested |
| ./SkDrawLooper.h:9:class SkDrawLooper : public SkFlattenable { -- virtually abstract |
| ./SkBlurDrawLooper.h:9:class SkBlurDrawLooper : public SkDrawLooper { *** untested *** |
| ./SkMaskFilter.h:41:class SkMaskFilter : public SkFlattenable { -- abstract chmod +w .h |
| ./SkEmbossMaskFilter.h:27:class SkEmbossMaskFilter : public SkMaskFilter { -- tested |
| ./SkPathEffect.h:33:class SkPathEffect : public SkFlattenable { -- abstract |
| ./Sk1DPathEffect.h:27:class Sk1DPathEffect : public SkPathEffect { -- abstract |
| ./Sk1DPathEffect.h:48:class SkPath1DPathEffect : public Sk1DPathEffect { -- tested |
| ./Sk2DPathEffect.h:25:class Sk2DPathEffect : public SkPathEffect { *** untested *** |
| ./SkCornerPathEffect.h:28:class SkCornerPathEffect : public SkPathEffect { *** untested *** |
| ./SkDashPathEffect.h:27:class SkDashPathEffect : public SkPathEffect { |
| ./SkDiscretePathEffect.h:27:class SkDiscretePathEffect : public SkPathEffect { |
| ./SkPaint.h:760:class SkStrokePathEffect : public SkPathEffect { |
| ./SkPathEffect.h:58:class SkPairPathEffect : public SkPathEffect { |
| ./SkPathEffect.h:78:class SkComposePathEffect : public SkPairPathEffect { |
| ./SkPathEffect.h:114:class SkSumPathEffect : public SkPairPathEffect { |
| ./SkRasterizer.h:29:class SkRasterizer : public SkFlattenable { |
| ./SkLayerRasterizer.h:27:class SkLayerRasterizer : public SkRasterizer { |
| ./SkShader.h:36:class SkShader : public SkFlattenable { |
| ./SkColorFilter.h:59:class SkFilterShader : public SkShader { |
| ./SkColorShader.h:26:class SkColorShader : public SkShader { |
| ./SkShaderExtras.h:31:class SkComposeShader : public SkShader { |
| ./SkTransparentShader.h:23:class SkTransparentShader : public SkShader { |
| ./SkUnitMapper.h:24:class SkUnitMapper : public SkFlattenable { |
| ./SkUnitMapper.h:33:class SkDiscreteMapper : public SkUnitMapper { |
| ./SkUnitMapper.h:51:class SkFlipCosineMapper : public SkUnitMapper { |
| ./SkXfermode.h:32:class SkXfermode : public SkFlattenable { |
| ./SkAvoidXfermode.h:28:class SkAvoidXfermode : public SkXfermode { *** not done *** chmod +w .h .cpp |
| ./SkXfermode.h:54:class SkProcXfermode : public SkXfermode { |
| */ |
| |
| /* |
| ./SkBlurMaskFilter.h:25:class SkBlurMaskFilter { |
| chmod +w SkBlurMaskFilter.cpp |
| ./SkGradientShader.h:30:class SkGradientShader { |
| */ |
| // save layer, bounder, looper |
| // matrix |
| // clip /path/region |
| // bitmap proc shader ? |
| |
| /* untested: |
| SkCornerPathEffect.h:28:class SkCornerPathEffect : public SkPathEffect { |
| */ |
| |
| virtual SkView::Click* onFindClickHandler(SkScalar x, SkScalar y) |
| { |
| fClickPt.set(x, y); |
| this->inval(NULL); |
| return this->INHERITED::onFindClickHandler(x, y); |
| } |
| |
| 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 = new SkPath1DPathEffect(path, SkIntToScalar(12), |
| gPhase, SkPath1DPathEffect::kRotate_Style); |
| SkPathEffect* inner = new SkDiscretePathEffect(SkIntToScalar(2), |
| SkIntToScalar(1)/10); // SkCornerPathEffect(SkIntToScalar(2)); |
| SkPathEffect* result = new SkComposePathEffect(outer, inner); |
| outer->unref(); |
| inner->unref(); |
| return result; |
| } |
| |
| SkPathEffect* pathEffectTest2() // unsure this works (has no visible effect) |
| { |
| SkPathEffect* outer = new SkStrokePathEffect(SkIntToScalar(4), |
| SkPaint::kStroke_Style, SkPaint::kMiter_Join, SkPaint::kButt_Cap); |
| static const SkScalar intervals[] = {SkIntToScalar(1), SkIntToScalar(2), |
| SkIntToScalar(2), SkIntToScalar(1)}; |
| SkPathEffect* inner = new SkDashPathEffect(intervals, |
| sizeof(intervals) / sizeof(intervals[0]), 0); |
| SkPathEffect* result = new SkSumPathEffect(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, NULL, |
| 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, NULL, |
| 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 (int 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 (int i = 0; i < SK_ARRAY_COUNT(gRastProcs); i++) |
| { |
| apply_shader(&paint, i); |
| |
| // paint.setMaskFilter(NULL); |
| // 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(); |
| |
| if (1) { |
| SkAvoidXfermode mode(SK_ColorWHITE, 0xFF, |
| SkAvoidXfermode::kTargetColor_Mode); |
| SkPaint paint; |
| x += SkIntToScalar(20); |
| SkRect r = { x, 0, x + SkIntToScalar(360), SkIntToScalar(700) }; |
| paint.setXfermode(&mode); |
| paint.setColor(SK_ColorGREEN); |
| paint.setAntiAlias(true); |
| canvas->drawOval(r, paint); |
| } |
| } |
| |
| private: |
| SkPoint fClickPt; |
| SkBitmap fBug, fTb, fTx; |
| typedef SkView INHERITED; |
| }; |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| static SkView* MyFactory() { return new DemoView; } |
| static SkViewRegister reg(MyFactory); |
| |