Bitmap.cpp revision a2c8a7b5739c1febf8ffbf9461334343bdadab16 
1#include "SkBitmap.h"
2#include "SkPixelRef.h"
3#include "SkImageEncoder.h"
4#include "SkColorPriv.h"
5#include "GraphicsJNI.h"
6#include "SkDither.h"
7#include "SkUnPreMultiply.h"
8
9#include <binder/Parcel.h>
10#include "android_util_Binder.h"
11#include "android_nio_utils.h"
12#include "CreateJavaOutputStreamAdaptor.h"
13
14#include <jni.h>
15
16#include <Caches.h>
17
18#if 0
19    #define TRACE_BITMAP(code)  code
20#else
21    #define TRACE_BITMAP(code)
22#endif
23
24///////////////////////////////////////////////////////////////////////////////
25// Conversions to/from SkColor, for get/setPixels, and the create method, which
26// is basically like setPixels
27
28typedef void (*FromColorProc)(void* dst, const SkColor src[], int width,
29                              int x, int y);
30
31static void FromColor_D32(void* dst, const SkColor src[], int width,
32                          int, int) {
33    SkPMColor* d = (SkPMColor*)dst;
34
35    for (int i = 0; i < width; i++) {
36        *d++ = SkPreMultiplyColor(*src++);
37    }
38}
39
40static void FromColor_D565(void* dst, const SkColor src[], int width,
41                           int x, int y) {
42    uint16_t* d = (uint16_t*)dst;
43
44    DITHER_565_SCAN(y);
45    for (int stop = x + width; x < stop; x++) {
46        SkColor c = *src++;
47        *d++ = SkDitherRGBTo565(SkColorGetR(c), SkColorGetG(c), SkColorGetB(c),
48                                DITHER_VALUE(x));
49    }
50}
51
52static void FromColor_D4444(void* dst, const SkColor src[], int width,
53                            int x, int y) {
54    SkPMColor16* d = (SkPMColor16*)dst;
55
56    DITHER_4444_SCAN(y);
57    for (int stop = x + width; x < stop; x++) {
58        SkPMColor c = SkPreMultiplyColor(*src++);
59        *d++ = SkDitherARGB32To4444(c, DITHER_VALUE(x));
60//        *d++ = SkPixel32ToPixel4444(c);
61    }
62}
63
64// can return NULL
65static FromColorProc ChooseFromColorProc(SkBitmap::Config config) {
66    switch (config) {
67        case SkBitmap::kARGB_8888_Config:
68            return FromColor_D32;
69        case SkBitmap::kARGB_4444_Config:
70            return FromColor_D4444;
71        case SkBitmap::kRGB_565_Config:
72            return FromColor_D565;
73        default:
74            break;
75    }
76    return NULL;
77}
78
79bool GraphicsJNI::SetPixels(JNIEnv* env, jintArray srcColors,
80                            int srcOffset, int srcStride,
81                            int x, int y, int width, int height,
82                            const SkBitmap& dstBitmap) {
83    SkAutoLockPixels alp(dstBitmap);
84    void* dst = dstBitmap.getPixels();
85    FromColorProc proc = ChooseFromColorProc(dstBitmap.config());
86
87    if (NULL == dst || NULL == proc) {
88        return false;
89    }
90
91    const jint* array = env->GetIntArrayElements(srcColors, NULL);
92    const SkColor* src = (const SkColor*)array + srcOffset;
93
94    // reset to to actual choice from caller
95    dst = dstBitmap.getAddr(x, y);
96    // now copy/convert each scanline
97    for (int y = 0; y < height; y++) {
98        proc(dst, src, width, x, y);
99        src += srcStride;
100        dst = (char*)dst + dstBitmap.rowBytes();
101    }
102
103    dstBitmap.notifyPixelsChanged();
104
105    env->ReleaseIntArrayElements(srcColors, const_cast<jint*>(array),
106                                 JNI_ABORT);
107    return true;
108}
109
110//////////////////// ToColor procs
111
112typedef void (*ToColorProc)(SkColor dst[], const void* src, int width,
113                            SkColorTable*);
114
115static void ToColor_S32_Alpha(SkColor dst[], const void* src, int width,
116                              SkColorTable*) {
117    SkASSERT(width > 0);
118    const SkPMColor* s = (const SkPMColor*)src;
119    do {
120        *dst++ = SkUnPreMultiply::PMColorToColor(*s++);
121    } while (--width != 0);
122}
123
124static void ToColor_S32_Opaque(SkColor dst[], const void* src, int width,
125                               SkColorTable*) {
126    SkASSERT(width > 0);
127    const SkPMColor* s = (const SkPMColor*)src;
128    do {
129        SkPMColor c = *s++;
130        *dst++ = SkColorSetRGB(SkGetPackedR32(c), SkGetPackedG32(c),
131                               SkGetPackedB32(c));
132    } while (--width != 0);
133}
134
135static void ToColor_S4444_Alpha(SkColor dst[], const void* src, int width,
136                                SkColorTable*) {
137    SkASSERT(width > 0);
138    const SkPMColor16* s = (const SkPMColor16*)src;
139    do {
140        *dst++ = SkUnPreMultiply::PMColorToColor(SkPixel4444ToPixel32(*s++));
141    } while (--width != 0);
142}
143
144static void ToColor_S4444_Opaque(SkColor dst[], const void* src, int width,
145                                 SkColorTable*) {
146    SkASSERT(width > 0);
147    const SkPMColor* s = (const SkPMColor*)src;
148    do {
149        SkPMColor c = SkPixel4444ToPixel32(*s++);
150        *dst++ = SkColorSetRGB(SkGetPackedR32(c), SkGetPackedG32(c),
151                               SkGetPackedB32(c));
152    } while (--width != 0);
153}
154
155static void ToColor_S565(SkColor dst[], const void* src, int width,
156                         SkColorTable*) {
157    SkASSERT(width > 0);
158    const uint16_t* s = (const uint16_t*)src;
159    do {
160        uint16_t c = *s++;
161        *dst++ =  SkColorSetRGB(SkPacked16ToR32(c), SkPacked16ToG32(c),
162                                SkPacked16ToB32(c));
163    } while (--width != 0);
164}
165
166static void ToColor_SI8_Alpha(SkColor dst[], const void* src, int width,
167                              SkColorTable* ctable) {
168    SkASSERT(width > 0);
169    const uint8_t* s = (const uint8_t*)src;
170    const SkPMColor* colors = ctable->lockColors();
171    do {
172        *dst++ = SkUnPreMultiply::PMColorToColor(colors[*s++]);
173    } while (--width != 0);
174    ctable->unlockColors(false);
175}
176
177static void ToColor_SI8_Opaque(SkColor dst[], const void* src, int width,
178                               SkColorTable* ctable) {
179    SkASSERT(width > 0);
180    const uint8_t* s = (const uint8_t*)src;
181    const SkPMColor* colors = ctable->lockColors();
182    do {
183        SkPMColor c = colors[*s++];
184        *dst++ = SkColorSetRGB(SkGetPackedR32(c), SkGetPackedG32(c),
185                               SkGetPackedB32(c));
186    } while (--width != 0);
187    ctable->unlockColors(false);
188}
189
190// can return NULL
191static ToColorProc ChooseToColorProc(const SkBitmap& src) {
192    switch (src.config()) {
193        case SkBitmap::kARGB_8888_Config:
194            return src.isOpaque() ? ToColor_S32_Opaque : ToColor_S32_Alpha;
195        case SkBitmap::kARGB_4444_Config:
196            return src.isOpaque() ? ToColor_S4444_Opaque : ToColor_S4444_Alpha;
197        case SkBitmap::kRGB_565_Config:
198            return ToColor_S565;
199        case SkBitmap::kIndex8_Config:
200            if (src.getColorTable() == NULL) {
201                return NULL;
202            }
203            return src.isOpaque() ? ToColor_SI8_Opaque : ToColor_SI8_Alpha;
204        default:
205            break;
206    }
207    return NULL;
208}
209
210///////////////////////////////////////////////////////////////////////////////
211///////////////////////////////////////////////////////////////////////////////
212
213static jobject Bitmap_creator(JNIEnv* env, jobject, jintArray jColors,
214                              int offset, int stride, int width, int height,
215                              SkBitmap::Config config, jboolean isMutable) {
216    if (NULL != jColors) {
217        size_t n = env->GetArrayLength(jColors);
218        if (n < SkAbs32(stride) * (size_t)height) {
219            doThrowAIOOBE(env);
220            return NULL;
221        }
222    }
223
224    SkBitmap bitmap;
225
226    bitmap.setConfig(config, width, height);
227
228    jbyteArray buff = GraphicsJNI::allocateJavaPixelRef(env, &bitmap, NULL);
229    if (NULL == buff) {
230        return NULL;
231    }
232
233    if (jColors != NULL) {
234        GraphicsJNI::SetPixels(env, jColors, offset, stride,
235                               0, 0, width, height, bitmap);
236    }
237
238    return GraphicsJNI::createBitmap(env, new SkBitmap(bitmap), buff, isMutable, NULL);
239}
240
241static jobject Bitmap_copy(JNIEnv* env, jobject, const SkBitmap* src,
242                           SkBitmap::Config dstConfig, jboolean isMutable) {
243    SkBitmap            result;
244    JavaPixelAllocator  allocator(env);
245
246    if (!src->copyTo(&result, dstConfig, &allocator)) {
247        return NULL;
248    }
249
250    return GraphicsJNI::createBitmap(env, new SkBitmap(result), allocator.getStorageObj(), isMutable, NULL);
251}
252
253static void Bitmap_destructor(JNIEnv* env, jobject, SkBitmap* bitmap) {
254#ifdef USE_OPENGL_RENDERER
255    if (android::uirenderer::Caches::hasInstance()) {
256        android::uirenderer::Caches::getInstance().resourceCache.destructor(bitmap);
257        return;
258    }
259#endif // USE_OPENGL_RENDERER
260    delete bitmap;
261}
262
263static void Bitmap_recycle(JNIEnv* env, jobject, SkBitmap* bitmap) {
264#ifdef USE_OPENGL_RENDERER
265    if (android::uirenderer::Caches::hasInstance()) {
266        android::uirenderer::Caches::getInstance().resourceCache.recycle(bitmap);
267        return;
268    }
269#endif // USE_OPENGL_RENDERER
270    bitmap->setPixels(NULL, NULL);
271}
272
273// These must match the int values in Bitmap.java
274enum JavaEncodeFormat {
275    kJPEG_JavaEncodeFormat = 0,
276    kPNG_JavaEncodeFormat = 1,
277    kWEBP_JavaEncodeFormat = 2
278};
279
280static bool Bitmap_compress(JNIEnv* env, jobject clazz, SkBitmap* bitmap,
281                            int format, int quality,
282                            jobject jstream, jbyteArray jstorage) {
283    SkImageEncoder::Type fm;
284
285    switch (format) {
286    case kJPEG_JavaEncodeFormat:
287        fm = SkImageEncoder::kJPEG_Type;
288        break;
289    case kPNG_JavaEncodeFormat:
290        fm = SkImageEncoder::kPNG_Type;
291        break;
292    case kWEBP_JavaEncodeFormat:
293        fm = SkImageEncoder::kWEBP_Type;
294        break;
295    default:
296        return false;
297    }
298
299    bool success = false;
300    SkWStream* strm = CreateJavaOutputStreamAdaptor(env, jstream, jstorage);
301    if (NULL != strm) {
302        SkImageEncoder* encoder = SkImageEncoder::Create(fm);
303        if (NULL != encoder) {
304            success = encoder->encodeStream(strm, *bitmap, quality);
305            delete encoder;
306        }
307        delete strm;
308    }
309    return success;
310}
311
312static void Bitmap_erase(JNIEnv* env, jobject, SkBitmap* bitmap, jint color) {
313    bitmap->eraseColor(color);
314}
315
316static int Bitmap_width(JNIEnv* env, jobject, SkBitmap* bitmap) {
317    return bitmap->width();
318}
319
320static int Bitmap_height(JNIEnv* env, jobject, SkBitmap* bitmap) {
321    return bitmap->height();
322}
323
324static int Bitmap_rowBytes(JNIEnv* env, jobject, SkBitmap* bitmap) {
325    return bitmap->rowBytes();
326}
327
328static int Bitmap_config(JNIEnv* env, jobject, SkBitmap* bitmap) {
329    return bitmap->config();
330}
331
332static int Bitmap_getGenerationId(JNIEnv* env, jobject, SkBitmap* bitmap) {
333    return bitmap->getGenerationID();
334}
335
336static jboolean Bitmap_hasAlpha(JNIEnv* env, jobject, SkBitmap* bitmap) {
337    return !bitmap->isOpaque();
338}
339
340static void Bitmap_setHasAlpha(JNIEnv* env, jobject, SkBitmap* bitmap,
341                               jboolean hasAlpha) {
342    bitmap->setIsOpaque(!hasAlpha);
343}
344
345///////////////////////////////////////////////////////////////////////////////
346
347static jobject Bitmap_createFromParcel(JNIEnv* env, jobject, jobject parcel) {
348    if (parcel == NULL) {
349        SkDebugf("-------- unparcel parcel is NULL\n");
350        return NULL;
351    }
352
353    android::Parcel* p = android::parcelForJavaObject(env, parcel);
354
355    const bool              isMutable = p->readInt32() != 0;
356    const SkBitmap::Config  config = (SkBitmap::Config)p->readInt32();
357    const int               width = p->readInt32();
358    const int               height = p->readInt32();
359    const int               rowBytes = p->readInt32();
360    const int               density = p->readInt32();
361
362    if (SkBitmap::kARGB_8888_Config != config &&
363            SkBitmap::kRGB_565_Config != config &&
364            SkBitmap::kARGB_4444_Config != config &&
365            SkBitmap::kIndex8_Config != config &&
366            SkBitmap::kA8_Config != config) {
367        SkDebugf("Bitmap_createFromParcel unknown config: %d\n", config);
368        return NULL;
369    }
370
371    SkBitmap* bitmap = new SkBitmap;
372
373    bitmap->setConfig(config, width, height, rowBytes);
374
375    SkColorTable* ctable = NULL;
376    if (config == SkBitmap::kIndex8_Config) {
377        int count = p->readInt32();
378        if (count > 0) {
379            size_t size = count * sizeof(SkPMColor);
380            const SkPMColor* src = (const SkPMColor*)p->readInplace(size);
381            ctable = new SkColorTable(src, count);
382        }
383    }
384
385    jbyteArray buffer = GraphicsJNI::allocateJavaPixelRef(env, bitmap, ctable);
386    if (NULL == buffer) {
387        SkSafeUnref(ctable);
388        delete bitmap;
389        return NULL;
390    }
391
392    SkSafeUnref(ctable);
393
394    size_t size = bitmap->getSize();
395    bitmap->lockPixels();
396    memcpy(bitmap->getPixels(), p->readInplace(size), size);
397    bitmap->unlockPixels();
398
399    return GraphicsJNI::createBitmap(env, bitmap, buffer, isMutable, NULL, density);
400}
401
402static jboolean Bitmap_writeToParcel(JNIEnv* env, jobject,
403                                     const SkBitmap* bitmap,
404                                     jboolean isMutable, jint density,
405                                     jobject parcel) {
406    if (parcel == NULL) {
407        SkDebugf("------- writeToParcel null parcel\n");
408        return false;
409    }
410
411    android::Parcel* p = android::parcelForJavaObject(env, parcel);
412
413    p->writeInt32(isMutable);
414    p->writeInt32(bitmap->config());
415    p->writeInt32(bitmap->width());
416    p->writeInt32(bitmap->height());
417    p->writeInt32(bitmap->rowBytes());
418    p->writeInt32(density);
419
420    if (bitmap->getConfig() == SkBitmap::kIndex8_Config) {
421        SkColorTable* ctable = bitmap->getColorTable();
422        if (ctable != NULL) {
423            int count = ctable->count();
424            p->writeInt32(count);
425            memcpy(p->writeInplace(count * sizeof(SkPMColor)),
426                   ctable->lockColors(), count * sizeof(SkPMColor));
427            ctable->unlockColors(false);
428        } else {
429            p->writeInt32(0);   // indicate no ctable
430        }
431    }
432
433    size_t size = bitmap->getSize();
434    bitmap->lockPixels();
435    void* pDst = p->writeInplace(size);
436
437    const void* pSrc =  bitmap->getPixels();
438
439    if (pSrc == NULL) {
440        memset(pDst, 0, size);
441    } else {
442        memcpy(pDst, pSrc, size);
443    }
444    bitmap->unlockPixels();
445    return true;
446}
447
448static jobject Bitmap_extractAlpha(JNIEnv* env, jobject clazz,
449                                   const SkBitmap* src, const SkPaint* paint,
450                                   jintArray offsetXY) {
451    SkIPoint  offset;
452    SkBitmap* dst = new SkBitmap;
453    JavaPixelAllocator allocator(env);
454
455    src->extractAlpha(dst, paint, &allocator, &offset);
456    // If Skia can't allocate pixels for destination bitmap, it resets
457    // it, that is set its pixels buffer to NULL, and zero width and height.
458    if (dst->getPixels() == NULL && src->getPixels() != NULL) {
459        delete dst;
460        doThrowOOME(env, "failed to allocate pixels for alpha");
461        return NULL;
462    }
463    if (offsetXY != 0 && env->GetArrayLength(offsetXY) >= 2) {
464        int* array = env->GetIntArrayElements(offsetXY, NULL);
465        array[0] = offset.fX;
466        array[1] = offset.fY;
467        env->ReleaseIntArrayElements(offsetXY, array, 0);
468    }
469
470    return GraphicsJNI::createBitmap(env, dst, allocator.getStorageObj(), true, NULL);
471}
472
473///////////////////////////////////////////////////////////////////////////////
474
475static int Bitmap_getPixel(JNIEnv* env, jobject, const SkBitmap* bitmap,
476                           int x, int y) {
477    SkAutoLockPixels alp(*bitmap);
478
479    ToColorProc proc = ChooseToColorProc(*bitmap);
480    if (NULL == proc) {
481        return 0;
482    }
483    const void* src = bitmap->getAddr(x, y);
484    if (NULL == src) {
485        return 0;
486    }
487
488    SkColor dst[1];
489    proc(dst, src, 1, bitmap->getColorTable());
490    return dst[0];
491}
492
493static void Bitmap_getPixels(JNIEnv* env, jobject, const SkBitmap* bitmap,
494                             jintArray pixelArray, int offset, int stride,
495                             int x, int y, int width, int height) {
496    SkAutoLockPixels alp(*bitmap);
497
498    ToColorProc proc = ChooseToColorProc(*bitmap);
499    if (NULL == proc) {
500        return;
501    }
502    const void* src = bitmap->getAddr(x, y);
503    if (NULL == src) {
504        return;
505    }
506
507    SkColorTable* ctable = bitmap->getColorTable();
508    jint* dst = env->GetIntArrayElements(pixelArray, NULL);
509    SkColor* d = (SkColor*)dst + offset;
510    while (--height >= 0) {
511        proc(d, src, width, ctable);
512        d += stride;
513        src = (void*)((const char*)src + bitmap->rowBytes());
514    }
515    env->ReleaseIntArrayElements(pixelArray, dst, 0);
516}
517
518///////////////////////////////////////////////////////////////////////////////
519
520static void Bitmap_setPixel(JNIEnv* env, jobject, const SkBitmap* bitmap,
521                            int x, int y, SkColor color) {
522    SkAutoLockPixels alp(*bitmap);
523    if (NULL == bitmap->getPixels()) {
524        return;
525    }
526
527    FromColorProc proc = ChooseFromColorProc(bitmap->config());
528    if (NULL == proc) {
529        return;
530    }
531
532    proc(bitmap->getAddr(x, y), &color, 1, x, y);
533    bitmap->notifyPixelsChanged();
534}
535
536static void Bitmap_setPixels(JNIEnv* env, jobject, const SkBitmap* bitmap,
537                             jintArray pixelArray, int offset, int stride,
538                             int x, int y, int width, int height) {
539    GraphicsJNI::SetPixels(env, pixelArray, offset, stride,
540                           x, y, width, height, *bitmap);
541}
542
543static void Bitmap_copyPixelsToBuffer(JNIEnv* env, jobject,
544                                      const SkBitmap* bitmap, jobject jbuffer) {
545    SkAutoLockPixels alp(*bitmap);
546    const void* src = bitmap->getPixels();
547
548    if (NULL != src) {
549        android::AutoBufferPointer abp(env, jbuffer, JNI_TRUE);
550
551        // the java side has already checked that buffer is large enough
552        memcpy(abp.pointer(), src, bitmap->getSize());
553    }
554}
555
556static void Bitmap_copyPixelsFromBuffer(JNIEnv* env, jobject,
557                                    const SkBitmap* bitmap, jobject jbuffer) {
558    SkAutoLockPixels alp(*bitmap);
559    void* dst = bitmap->getPixels();
560
561    if (NULL != dst) {
562        android::AutoBufferPointer abp(env, jbuffer, JNI_FALSE);
563        // the java side has already checked that buffer is large enough
564        memcpy(dst, abp.pointer(), bitmap->getSize());
565    }
566}
567
568static bool Bitmap_sameAs(JNIEnv* env, jobject, const SkBitmap* bm0,
569                             const SkBitmap* bm1) {
570    if (bm0->width() != bm1->width() ||
571        bm0->height() != bm1->height() ||
572        bm0->config() != bm1->config()) {
573        return false;
574    }
575
576    SkAutoLockPixels alp0(*bm0);
577    SkAutoLockPixels alp1(*bm1);
578
579    // if we can't load the pixels, return false
580    if (NULL == bm0->getPixels() || NULL == bm1->getPixels()) {
581        return false;
582    }
583
584    if (bm0->config() == SkBitmap::kIndex8_Config) {
585        SkColorTable* ct0 = bm0->getColorTable();
586        SkColorTable* ct1 = bm1->getColorTable();
587        if (NULL == ct0 || NULL == ct1) {
588            return false;
589        }
590        if (ct0->count() != ct1->count()) {
591            return false;
592        }
593
594        SkAutoLockColors alc0(ct0);
595        SkAutoLockColors alc1(ct1);
596        const size_t size = ct0->count() * sizeof(SkPMColor);
597        if (memcmp(alc0.colors(), alc1.colors(), size) != 0) {
598            return false;
599        }
600    }
601
602    // now compare each scanline. We can't do the entire buffer at once,
603    // since we don't care about the pixel values that might extend beyond
604    // the width (since the scanline might be larger than the logical width)
605    const int h = bm0->height();
606    const size_t size = bm0->width() * bm0->bytesPerPixel();
607    for (int y = 0; y < h; y++) {
608        if (memcmp(bm0->getAddr(0, y), bm1->getAddr(0, y), size) != 0) {
609            return false;
610        }
611    }
612    return true;
613}
614
615static void Bitmap_prepareToDraw(JNIEnv* env, jobject, SkBitmap* bitmap) {
616    bitmap->lockPixels();
617    bitmap->unlockPixels();
618}
619
620///////////////////////////////////////////////////////////////////////////////
621
622#include <android_runtime/AndroidRuntime.h>
623
624static JNINativeMethod gBitmapMethods[] = {
625    {   "nativeCreate",             "([IIIIIIZ)Landroid/graphics/Bitmap;",
626        (void*)Bitmap_creator },
627    {   "nativeCopy",               "(IIZ)Landroid/graphics/Bitmap;",
628        (void*)Bitmap_copy },
629    {   "nativeDestructor",         "(I)V", (void*)Bitmap_destructor },
630    {   "nativeRecycle",            "(I)V", (void*)Bitmap_recycle },
631    {   "nativeCompress",           "(IIILjava/io/OutputStream;[B)Z",
632        (void*)Bitmap_compress },
633    {   "nativeErase",              "(II)V", (void*)Bitmap_erase },
634    {   "nativeWidth",              "(I)I", (void*)Bitmap_width },
635    {   "nativeHeight",             "(I)I", (void*)Bitmap_height },
636    {   "nativeRowBytes",           "(I)I", (void*)Bitmap_rowBytes },
637    {   "nativeConfig",             "(I)I", (void*)Bitmap_config },
638    {   "nativeHasAlpha",           "(I)Z", (void*)Bitmap_hasAlpha },
639    {   "nativeSetHasAlpha",        "(IZ)V", (void*)Bitmap_setHasAlpha },
640    {   "nativeCreateFromParcel",
641        "(Landroid/os/Parcel;)Landroid/graphics/Bitmap;",
642        (void*)Bitmap_createFromParcel },
643    {   "nativeWriteToParcel",      "(IZILandroid/os/Parcel;)Z",
644        (void*)Bitmap_writeToParcel },
645    {   "nativeExtractAlpha",       "(II[I)Landroid/graphics/Bitmap;",
646        (void*)Bitmap_extractAlpha },
647    {   "nativeGenerationId",       "(I)I", (void*)Bitmap_getGenerationId },
648    {   "nativeGetPixel",           "(III)I", (void*)Bitmap_getPixel },
649    {   "nativeGetPixels",          "(I[IIIIIII)V", (void*)Bitmap_getPixels },
650    {   "nativeSetPixel",           "(IIII)V", (void*)Bitmap_setPixel },
651    {   "nativeSetPixels",          "(I[IIIIIII)V", (void*)Bitmap_setPixels },
652    {   "nativeCopyPixelsToBuffer", "(ILjava/nio/Buffer;)V",
653                                            (void*)Bitmap_copyPixelsToBuffer },
654    {   "nativeCopyPixelsFromBuffer", "(ILjava/nio/Buffer;)V",
655                                            (void*)Bitmap_copyPixelsFromBuffer },
656    {   "nativeSameAs",             "(II)Z", (void*)Bitmap_sameAs },
657    {   "nativePrepareToDraw",      "(I)V", (void*)Bitmap_prepareToDraw },
658};
659
660#define kClassPathName  "android/graphics/Bitmap"
661
662int register_android_graphics_Bitmap(JNIEnv* env)
663{
664    return android::AndroidRuntime::registerNativeMethods(env, kClassPathName,
665                                gBitmapMethods, SK_ARRAY_COUNT(gBitmapMethods));
666}
667