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| 1 /* | |
| 2 * Copyright 2016 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 <math.h> | 1 #include <math.h> |
| 9 #include <jni.h> | 2 #include <jni.h> |
| 10 #include <android/bitmap.h> | 3 #include <android/bitmap.h> |
| 11 | 4 |
| 12 #include "SkCanvas.h" | 5 #include "SkCanvas.h" |
| 13 #include "SkGraphics.h" | 6 #include "SkGraphics.h" |
| 14 #include "SkSurface.h" | 7 #include "SkSurface.h" |
| 15 #include "SkString.h" | 8 #include "SkString.h" |
| 16 #include "SkTime.h" | 9 #include "SkTime.h" |
| 17 | 10 |
| (...skipping 11 matching lines...) Expand all Loading... |
| 29 { | 22 { |
| 30 // Grab the dst bitmap info and pixels | 23 // Grab the dst bitmap info and pixels |
| 31 AndroidBitmapInfo dstInfo; | 24 AndroidBitmapInfo dstInfo; |
| 32 void* dstPixels; | 25 void* dstPixels; |
| 33 AndroidBitmap_getInfo(env, dstBitmap, &dstInfo); | 26 AndroidBitmap_getInfo(env, dstBitmap, &dstInfo); |
| 34 AndroidBitmap_lockPixels(env, dstBitmap, &dstPixels); | 27 AndroidBitmap_lockPixels(env, dstBitmap, &dstPixels); |
| 35 | 28 |
| 36 SkImageInfo info = SkImageInfo::MakeN32Premul(dstInfo.width, dstInfo.height)
; | 29 SkImageInfo info = SkImageInfo::MakeN32Premul(dstInfo.width, dstInfo.height)
; |
| 37 | 30 |
| 38 // Create a surface from the given bitmap | 31 // Create a surface from the given bitmap |
| 39 sk_sp<SkSurface> surface(SkSurface::MakeRasterDirect(info, dstPixels, dstInf
o.stride)); | 32 SkAutoTUnref<SkSurface> surface(SkSurface::NewRasterDirect(info, dstPixels,
dstInfo.stride)); |
| 40 SkCanvas* canvas = surface->getCanvas(); | 33 SkCanvas* canvas = surface->getCanvas(); |
| 41 | 34 |
| 42 // Draw something "interesting" | 35 // Draw something "interesting" |
| 43 | 36 |
| 44 // Clear the canvas with a white color | 37 // Clear the canvas with a white color |
| 45 canvas->drawColor(SK_ColorWHITE); | 38 canvas->drawColor(SK_ColorWHITE); |
| 46 | 39 |
| 47 // Setup a SkPaint for drawing our text | 40 // Setup a SkPaint for drawing our text |
| 48 SkPaint paint; | 41 SkPaint paint; |
| 49 paint.setColor(SK_ColorBLACK); // This is a solid black color for our text | 42 paint.setColor(SK_ColorBLACK); // This is a solid black color for our text |
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| 68 float x = (float)i / 99.0f; | 61 float x = (float)i / 99.0f; |
| 69 float offset = elapsedTime / 1000.0f; | 62 float offset = elapsedTime / 1000.0f; |
| 70 canvas->drawLine(sin(x * M_PI + offset) * 800.0f, 0, // first endpoint | 63 canvas->drawLine(sin(x * M_PI + offset) * 800.0f, 0, // first endpoint |
| 71 cos(x * M_PI + offset) * 800.0f, 800, // second endpoin
t | 64 cos(x * M_PI + offset) * 800.0f, 800, // second endpoin
t |
| 72 paint); // SkPapint to te
ll how to draw the line | 65 paint); // SkPapint to te
ll how to draw the line |
| 73 } | 66 } |
| 74 | 67 |
| 75 // Unlock the dst's pixels | 68 // Unlock the dst's pixels |
| 76 AndroidBitmap_unlockPixels(env, dstBitmap); | 69 AndroidBitmap_unlockPixels(env, dstBitmap); |
| 77 } | 70 } |
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