blob: de5e3309c2e2f15f05eb207a2d15db272dcfddb7 [file] [log] [blame]
senorblanco@chromium.orgf49b4292012-06-22 21:01:23 +00001/*
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
14namespace skiagm {
15
16class ImageLightingGM : public GM {
17public:
18 ImageLightingGM() : fInitialized(false) {
19 this->setBGColor(0xFF000000);
20 }
rmistry@google.comae933ce2012-08-23 18:19:56 +000021
senorblanco@chromium.orgf49b4292012-06-22 21:01:23 +000022protected:
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
junov@chromium.orgff06af22013-01-14 16:27:50 +000045 void drawClippedBitmap(SkCanvas* canvas, const SkPaint& paint, int x, int y) {
46 canvas->save();
47 canvas->clipRect(SkRect::MakeXYWH(SkIntToScalar(x), SkIntToScalar(y),
48 SkIntToScalar(fBitmap.width()), SkIntToScalar(fBitmap.height())));
49 canvas->drawBitmap(fBitmap, SkIntToScalar(x), SkIntToScalar(y), &paint);
50 canvas->restore();
51 }
52
senorblanco@chromium.orgf49b4292012-06-22 21:01:23 +000053 virtual void onDraw(SkCanvas* canvas) {
54 if (!fInitialized) {
55 make_bitmap();
56 fInitialized = true;
57 }
senorblanco@chromium.org7b734e02012-10-29 19:47:06 +000058 canvas->clear(0xFF101010);
59 SkPaint checkPaint;
60 checkPaint.setColor(0xFF202020);
61 for (int y = 0; y < HEIGHT; y += 16) {
62 for (int x = 0; x < WIDTH; x += 16) {
63 canvas->save();
64 canvas->translate(SkIntToScalar(x), SkIntToScalar(y));
65 canvas->drawRect(SkRect::MakeXYWH(8, 0, 8, 8), checkPaint);
66 canvas->drawRect(SkRect::MakeXYWH(0, 8, 8, 8), checkPaint);
67 canvas->restore();
68 }
69 }
senorblanco@chromium.orgf49b4292012-06-22 21:01:23 +000070 SkPoint3 pointLocation(0, 0, SkIntToScalar(10));
71 SkScalar azimuthRad = SkDegreesToRadians(SkIntToScalar(225));
72 SkScalar elevationRad = SkDegreesToRadians(SkIntToScalar(5));
73 SkPoint3 distantDirection(SkScalarMul(SkScalarCos(azimuthRad), SkScalarCos(elevationRad)),
74 SkScalarMul(SkScalarSin(azimuthRad), SkScalarCos(elevationRad)),
75 SkScalarSin(elevationRad));
76 SkPoint3 spotLocation(SkIntToScalar(-10), SkIntToScalar(-10), SkIntToScalar(20));
77 SkPoint3 spotTarget(SkIntToScalar(40), SkIntToScalar(40), 0);
78 SkScalar spotExponent = SK_Scalar1;
79 SkScalar cutoffAngle = SkIntToScalar(15);
80 SkScalar kd = SkIntToScalar(2);
81 SkScalar ks = SkIntToScalar(1);
82 SkScalar shininess = SkIntToScalar(8);
83 SkScalar surfaceScale = SkIntToScalar(1);
84 SkColor white(0xFFFFFFFF);
85 SkPaint paint;
86 paint.setImageFilter(SkLightingImageFilter::CreatePointLitDiffuse(pointLocation, white, surfaceScale, kd))->unref();
junov@chromium.orgff06af22013-01-14 16:27:50 +000087 drawClippedBitmap(canvas, paint, 0, 0);
senorblanco@chromium.orgf49b4292012-06-22 21:01:23 +000088 paint.setImageFilter(SkLightingImageFilter::CreateDistantLitDiffuse(distantDirection, white, surfaceScale, kd))->unref();
junov@chromium.orgff06af22013-01-14 16:27:50 +000089 drawClippedBitmap(canvas, paint, 110, 0);
senorblanco@chromium.orgf49b4292012-06-22 21:01:23 +000090 paint.setImageFilter(SkLightingImageFilter::CreateSpotLitDiffuse(spotLocation, spotTarget, spotExponent, cutoffAngle, white, surfaceScale, kd))->unref();
junov@chromium.orgff06af22013-01-14 16:27:50 +000091 drawClippedBitmap(canvas, paint, 220, 0);
senorblanco@chromium.orgf49b4292012-06-22 21:01:23 +000092 paint.setImageFilter(SkLightingImageFilter::CreatePointLitSpecular(pointLocation, white, surfaceScale, ks, shininess))->unref();
junov@chromium.orgff06af22013-01-14 16:27:50 +000093 drawClippedBitmap(canvas, paint, 0, 110);
senorblanco@chromium.orgf49b4292012-06-22 21:01:23 +000094 paint.setImageFilter(SkLightingImageFilter::CreateDistantLitSpecular(distantDirection, white, surfaceScale, ks, shininess))->unref();
junov@chromium.orgff06af22013-01-14 16:27:50 +000095 drawClippedBitmap(canvas, paint, 110, 110);
senorblanco@chromium.orgf49b4292012-06-22 21:01:23 +000096 paint.setImageFilter(SkLightingImageFilter::CreateSpotLitSpecular(spotLocation, spotTarget, spotExponent, cutoffAngle, white, surfaceScale, ks, shininess))->unref();
junov@chromium.orgff06af22013-01-14 16:27:50 +000097 drawClippedBitmap(canvas, paint, 220, 110);
senorblanco@chromium.orgf49b4292012-06-22 21:01:23 +000098 }
rmistry@google.comae933ce2012-08-23 18:19:56 +000099
senorblanco@chromium.orgf49b4292012-06-22 21:01:23 +0000100private:
101 typedef GM INHERITED;
102 SkBitmap fBitmap;
103 bool fInitialized;
104};
105
106//////////////////////////////////////////////////////////////////////////////
107
108static GM* MyFactory(void*) { return new ImageLightingGM; }
109static GMRegistry reg(MyFactory);
110
111}