senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2012 Google Inc. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
| 7 | |
| 8 | #include "gm.h" |
| 9 | #include "SkLightingImageFilter.h" |
| 10 | |
| 11 | #define WIDTH 330 |
| 12 | #define HEIGHT 220 |
| 13 | |
| 14 | namespace skiagm { |
| 15 | |
| 16 | class ImageLightingGM : public GM { |
| 17 | public: |
| 18 | ImageLightingGM() : fInitialized(false) { |
| 19 | this->setBGColor(0xFF000000); |
| 20 | } |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame^] | 21 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 22 | protected: |
| 23 | virtual SkString onShortName() { |
| 24 | return SkString("lighting"); |
| 25 | } |
| 26 | |
| 27 | void make_bitmap() { |
| 28 | fBitmap.setConfig(SkBitmap::kARGB_8888_Config, 100, 100); |
| 29 | fBitmap.allocPixels(); |
| 30 | SkDevice device(fBitmap); |
| 31 | SkCanvas canvas(&device); |
| 32 | canvas.clear(0x00000000); |
| 33 | SkPaint paint; |
| 34 | paint.setAntiAlias(true); |
| 35 | paint.setColor(0xFFFFFFFF); |
| 36 | paint.setTextSize(SkIntToScalar(96)); |
| 37 | const char* str = "e"; |
| 38 | canvas.drawText(str, strlen(str), SkIntToScalar(20), SkIntToScalar(70), paint); |
| 39 | } |
| 40 | |
| 41 | virtual SkISize onISize() { |
| 42 | return make_isize(WIDTH, HEIGHT); |
| 43 | } |
| 44 | |
| 45 | virtual void onDraw(SkCanvas* canvas) { |
| 46 | if (!fInitialized) { |
| 47 | make_bitmap(); |
| 48 | fInitialized = true; |
| 49 | } |
| 50 | SkPoint3 pointLocation(0, 0, SkIntToScalar(10)); |
| 51 | SkScalar azimuthRad = SkDegreesToRadians(SkIntToScalar(225)); |
| 52 | SkScalar elevationRad = SkDegreesToRadians(SkIntToScalar(5)); |
| 53 | SkPoint3 distantDirection(SkScalarMul(SkScalarCos(azimuthRad), SkScalarCos(elevationRad)), |
| 54 | SkScalarMul(SkScalarSin(azimuthRad), SkScalarCos(elevationRad)), |
| 55 | SkScalarSin(elevationRad)); |
| 56 | SkPoint3 spotLocation(SkIntToScalar(-10), SkIntToScalar(-10), SkIntToScalar(20)); |
| 57 | SkPoint3 spotTarget(SkIntToScalar(40), SkIntToScalar(40), 0); |
| 58 | SkScalar spotExponent = SK_Scalar1; |
| 59 | SkScalar cutoffAngle = SkIntToScalar(15); |
| 60 | SkScalar kd = SkIntToScalar(2); |
| 61 | SkScalar ks = SkIntToScalar(1); |
| 62 | SkScalar shininess = SkIntToScalar(8); |
| 63 | SkScalar surfaceScale = SkIntToScalar(1); |
| 64 | SkColor white(0xFFFFFFFF); |
| 65 | SkPaint paint; |
| 66 | paint.setImageFilter(SkLightingImageFilter::CreatePointLitDiffuse(pointLocation, white, surfaceScale, kd))->unref(); |
| 67 | canvas->drawSprite(fBitmap, 0, 0, &paint); |
| 68 | paint.setImageFilter(SkLightingImageFilter::CreateDistantLitDiffuse(distantDirection, white, surfaceScale, kd))->unref(); |
| 69 | canvas->drawSprite(fBitmap, 110, 0, &paint); |
| 70 | paint.setImageFilter(SkLightingImageFilter::CreateSpotLitDiffuse(spotLocation, spotTarget, spotExponent, cutoffAngle, white, surfaceScale, kd))->unref(); |
| 71 | canvas->drawSprite(fBitmap, 220, 0, &paint); |
| 72 | paint.setImageFilter(SkLightingImageFilter::CreatePointLitSpecular(pointLocation, white, surfaceScale, ks, shininess))->unref(); |
| 73 | canvas->drawSprite(fBitmap, 0, 110, &paint); |
| 74 | paint.setImageFilter(SkLightingImageFilter::CreateDistantLitSpecular(distantDirection, white, surfaceScale, ks, shininess))->unref(); |
| 75 | canvas->drawSprite(fBitmap, 110, 110, &paint); |
| 76 | paint.setImageFilter(SkLightingImageFilter::CreateSpotLitSpecular(spotLocation, spotTarget, spotExponent, cutoffAngle, white, surfaceScale, ks, shininess))->unref(); |
| 77 | canvas->drawSprite(fBitmap, 220, 110, &paint); |
| 78 | } |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame^] | 79 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 80 | private: |
| 81 | typedef GM INHERITED; |
| 82 | SkBitmap fBitmap; |
| 83 | bool fInitialized; |
| 84 | }; |
| 85 | |
| 86 | ////////////////////////////////////////////////////////////////////////////// |
| 87 | |
| 88 | static GM* MyFactory(void*) { return new ImageLightingGM; } |
| 89 | static GMRegistry reg(MyFactory); |
| 90 | |
| 91 | } |