android_view_GLES20Canvas.cpp revision 5a7b466a2b4b7ced739bd5c31e022de61650545a 
1/*
2 * Copyright (C) 2010 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#define LOG_TAG "OpenGLRenderer"
18
19#include "jni.h"
20#include "GraphicsJNI.h"
21#include <nativehelper/JNIHelp.h>
22#include <android_runtime/AndroidRuntime.h>
23#include <utils/ResourceTypes.h>
24
25#include <SkBitmap.h>
26#include <SkCanvas.h>
27#include <SkMatrix.h>
28#include <SkPaint.h>
29#include <SkRegion.h>
30#include <SkScalerContext.h>
31#include <SkTemplates.h>
32#include <SkXfermode.h>
33
34#include <DisplayListRenderer.h>
35#include <LayerRenderer.h>
36#include <OpenGLDebugRenderer.h>
37#include <OpenGLRenderer.h>
38#include <SkiaShader.h>
39#include <SkiaColorFilter.h>
40#include <Rect.h>
41
42#include "TextLayout.h"
43
44namespace android {
45
46using namespace uirenderer;
47
48/**
49 * Note: OpenGLRenderer JNI layer is generated and compiled only on supported
50 *       devices. This means all the logic must be compiled only when the
51 *       preprocessor variable USE_OPENGL_RENDERER is defined.
52 */
53#ifdef USE_OPENGL_RENDERER
54
55///////////////////////////////////////////////////////////////////////////////
56// Defines
57///////////////////////////////////////////////////////////////////////////////
58
59// Debug
60#define DEBUG_RENDERER 0
61#define PROFILE_RENDERER 0
62
63// Debug
64#if DEBUG_RENDERER
65    #define RENDERER_LOGD(...) LOGD(__VA_ARGS__)
66#else
67    #define RENDERER_LOGD(...)
68#endif
69
70// ----------------------------------------------------------------------------
71
72static struct {
73    jclass clazz;
74    jmethodID set;
75} gRectClassInfo;
76
77// ----------------------------------------------------------------------------
78// Constructors
79// ----------------------------------------------------------------------------
80
81static OpenGLRenderer* android_view_GLES20Canvas_createRenderer(JNIEnv* env, jobject clazz) {
82    RENDERER_LOGD("Create OpenGLRenderer");
83#if PROFILE_RENDERER
84    return new OpenGLDebugRenderer;
85#else
86    return new OpenGLRenderer;
87#endif
88}
89
90static void android_view_GLES20Canvas_destroyRenderer(JNIEnv* env, jobject clazz,
91        OpenGLRenderer* renderer) {
92    RENDERER_LOGD("Destroy OpenGLRenderer");
93    delete renderer;
94}
95
96// ----------------------------------------------------------------------------
97// Setup
98// ----------------------------------------------------------------------------
99
100static void android_view_GLES20Canvas_setViewport(JNIEnv* env, jobject canvas,
101        OpenGLRenderer* renderer, jint width, jint height) {
102    renderer->setViewport(width, height);
103}
104
105static void android_view_GLES20Canvas_prepare(JNIEnv* env, jobject canvas,
106        OpenGLRenderer* renderer, jboolean opaque) {
107    renderer->prepare(opaque);
108}
109
110static void android_view_GLES20Canvas_finish(JNIEnv* env, jobject canvas,
111        OpenGLRenderer* renderer) {
112    renderer->finish();
113}
114
115static void android_view_GLES20Canvas_acquireContext(JNIEnv* env, jobject canvas,
116        OpenGLRenderer* renderer) {
117    renderer->acquireContext();
118}
119
120static void android_view_GLES20Canvas_releaseContext(JNIEnv* env, jobject canvas,
121        OpenGLRenderer* renderer) {
122    renderer->releaseContext();
123}
124
125// ----------------------------------------------------------------------------
126// State
127// ----------------------------------------------------------------------------
128
129static jint android_view_GLES20Canvas_save(JNIEnv* env, jobject canvas, OpenGLRenderer* renderer,
130        jint flags) {
131    return renderer->save(flags);
132}
133
134static jint android_view_GLES20Canvas_getSaveCount(JNIEnv* env, jobject canvas,
135        OpenGLRenderer* renderer) {
136    return renderer->getSaveCount();
137}
138
139static void android_view_GLES20Canvas_restore(JNIEnv* env, jobject canvas,
140        OpenGLRenderer* renderer) {
141    renderer->restore();
142}
143
144static void android_view_GLES20Canvas_restoreToCount(JNIEnv* env, jobject canvas,
145        OpenGLRenderer* renderer, jint saveCount) {
146    renderer->restoreToCount(saveCount);
147}
148
149// ----------------------------------------------------------------------------
150// Layers
151// ----------------------------------------------------------------------------
152
153static jint android_view_GLES20Canvas_saveLayer(JNIEnv* env, jobject canvas,
154        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
155        SkPaint* paint, jint saveFlags) {
156    return renderer->saveLayer(left, top, right, bottom, paint, saveFlags);
157}
158
159static jint android_view_GLES20Canvas_saveLayerAlpha(JNIEnv* env, jobject canvas,
160        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
161        jint alpha, jint saveFlags) {
162    return renderer->saveLayerAlpha(left, top, right, bottom, alpha, saveFlags);
163}
164
165// ----------------------------------------------------------------------------
166// Clipping
167// ----------------------------------------------------------------------------
168
169static bool android_view_GLES20Canvas_quickReject(JNIEnv* env, jobject canvas,
170        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
171        SkCanvas::EdgeType edge) {
172    return renderer->quickReject(left, top, right, bottom);
173}
174
175static bool android_view_GLES20Canvas_clipRectF(JNIEnv* env, jobject canvas,
176        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
177        SkRegion::Op op) {
178    return renderer->clipRect(left, top, right, bottom, op);
179}
180
181static bool android_view_GLES20Canvas_clipRect(JNIEnv* env, jobject canvas,
182        OpenGLRenderer* renderer, jint left, jint top, jint right, jint bottom,
183        SkRegion::Op op) {
184    return renderer->clipRect(float(left), float(top), float(right), float(bottom), op);
185}
186
187static bool android_view_GLES20Canvas_getClipBounds(JNIEnv* env, jobject canvas,
188        OpenGLRenderer* renderer, jobject rect) {
189    const android::uirenderer::Rect& bounds(renderer->getClipBounds());
190
191    env->CallVoidMethod(rect, gRectClassInfo.set,
192            int(bounds.left), int(bounds.top), int(bounds.right), int(bounds.bottom));
193
194    return !bounds.isEmpty();
195}
196
197// ----------------------------------------------------------------------------
198// Transforms
199// ----------------------------------------------------------------------------
200
201static void android_view_GLES20Canvas_translate(JNIEnv* env, jobject canvas,
202        OpenGLRenderer* renderer, jfloat dx, jfloat dy) {
203    renderer->translate(dx, dy);
204}
205
206static void android_view_GLES20Canvas_rotate(JNIEnv* env, jobject canvas,
207        OpenGLRenderer* renderer, jfloat degrees) {
208    renderer->rotate(degrees);
209}
210
211static void android_view_GLES20Canvas_scale(JNIEnv* env, jobject canvas,
212        OpenGLRenderer* renderer, jfloat sx, jfloat sy) {
213    renderer->scale(sx, sy);
214}
215
216static void android_view_GLES20Canvas_skew(JNIEnv* env, jobject canvas,
217        OpenGLRenderer* renderer, jfloat sx, jfloat sy) {
218    renderer->skew(sx, sy);
219}
220
221static void android_view_GLES20Canvas_setMatrix(JNIEnv* env, jobject canvas,
222        OpenGLRenderer* renderer, SkMatrix* matrix) {
223    renderer->setMatrix(matrix);
224}
225
226static const float* android_view_GLES20Canvas_getNativeMatrix(JNIEnv* env,
227        jobject canvas, OpenGLRenderer* renderer) {
228    return renderer->getMatrix();
229}
230
231static void android_view_GLES20Canvas_getMatrix(JNIEnv* env, jobject canvas,
232        OpenGLRenderer* renderer, SkMatrix* matrix) {
233    renderer->getMatrix(matrix);
234}
235
236static void android_view_GLES20Canvas_concatMatrix(JNIEnv* env, jobject canvas,
237        OpenGLRenderer* renderer, SkMatrix* matrix) {
238    renderer->concatMatrix(matrix);
239}
240
241// ----------------------------------------------------------------------------
242// Drawing
243// ----------------------------------------------------------------------------
244
245static void android_view_GLES20Canvas_drawBitmap(JNIEnv* env, jobject canvas,
246        OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer, float left,
247        float top, SkPaint* paint) {
248    // This object allows the renderer to allocate a global JNI ref to the buffer object.
249    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
250
251    renderer->drawBitmap(bitmap, left, top, paint);
252}
253
254static void android_view_GLES20Canvas_drawBitmapRect(JNIEnv* env, jobject canvas,
255        OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer,
256        float srcLeft, float srcTop, float srcRight, float srcBottom,
257        float dstLeft, float dstTop, float dstRight, float dstBottom, SkPaint* paint) {
258    // This object allows the renderer to allocate a global JNI ref to the buffer object.
259    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
260
261    renderer->drawBitmap(bitmap, srcLeft, srcTop, srcRight, srcBottom,
262            dstLeft, dstTop, dstRight, dstBottom, paint);
263}
264
265static void android_view_GLES20Canvas_drawBitmapMatrix(JNIEnv* env, jobject canvas,
266        OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer, SkMatrix* matrix,
267        SkPaint* paint) {
268    // This object allows the renderer to allocate a global JNI ref to the buffer object.
269    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
270
271    renderer->drawBitmap(bitmap, matrix, paint);
272}
273
274static void android_view_GLES20Canvas_drawBitmapMesh(JNIEnv* env, jobject canvas,
275        OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer,
276        jint meshWidth, jint meshHeight, jfloatArray vertices, jint offset,
277        jintArray colors, jint colorOffset, SkPaint* paint) {
278    // This object allows the renderer to allocate a global JNI ref to the buffer object.
279    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
280
281    jfloat* verticesArray = vertices ? env->GetFloatArrayElements(vertices, NULL) + offset : NULL;
282    jint* colorsArray = colors ? env->GetIntArrayElements(colors, NULL) + colorOffset : NULL;
283
284    renderer->drawBitmapMesh(bitmap, meshWidth, meshHeight, verticesArray, colorsArray, paint);
285
286    if (vertices) env->ReleaseFloatArrayElements(vertices, verticesArray, 0);
287    if (colors) env->ReleaseIntArrayElements(colors, colorsArray, 0);
288}
289
290static void android_view_GLES20Canvas_drawPatch(JNIEnv* env, jobject canvas,
291        OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer, jbyteArray chunks,
292        float left, float top, float right, float bottom, SkPaint* paint) {
293    // This object allows the renderer to allocate a global JNI ref to the buffer object.
294    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
295
296    jbyte* storage = env->GetByteArrayElements(chunks, NULL);
297    Res_png_9patch* patch = reinterpret_cast<Res_png_9patch*>(storage);
298    Res_png_9patch::deserialize(patch);
299
300    renderer->drawPatch(bitmap, &patch->xDivs[0], &patch->yDivs[0],
301            &patch->colors[0], patch->numXDivs, patch->numYDivs, patch->numColors,
302            left, top, right, bottom, paint);
303
304    env->ReleaseByteArrayElements(chunks, storage, 0);
305}
306
307static void android_view_GLES20Canvas_drawColor(JNIEnv* env, jobject canvas,
308        OpenGLRenderer* renderer, jint color, SkXfermode::Mode mode) {
309    renderer->drawColor(color, mode);
310}
311
312static void android_view_GLES20Canvas_drawRect(JNIEnv* env, jobject canvas,
313        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
314        SkPaint* paint) {
315    renderer->drawRect(left, top, right, bottom, paint);
316}
317
318static void android_view_GLES20Canvas_drawRoundRect(JNIEnv* env, jobject canvas,
319        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
320        jfloat rx, jfloat ry, SkPaint* paint) {
321    renderer->drawRoundRect(left, top, right, bottom, rx, ry, paint);
322}
323
324static void android_view_GLES20Canvas_drawCircle(JNIEnv* env, jobject canvas,
325        OpenGLRenderer* renderer, jfloat x, jfloat y, jfloat radius, SkPaint* paint) {
326    renderer->drawCircle(x, y, radius, paint);
327}
328
329static void android_view_GLES20Canvas_drawRects(JNIEnv* env, jobject canvas,
330        OpenGLRenderer* renderer, SkRegion* region, SkPaint* paint) {
331    SkRegion::Iterator it(*region);
332    while (!it.done()) {
333        const SkIRect& r = it.rect();
334        renderer->drawRect(r.fLeft, r.fTop, r.fRight, r.fBottom, paint);
335        it.next();
336    }
337}
338
339static void android_view_GLES20Canvas_drawPath(JNIEnv* env, jobject canvas,
340        OpenGLRenderer* renderer, SkPath* path, SkPaint* paint) {
341    renderer->drawPath(path, paint);
342}
343
344static void android_view_GLES20Canvas_drawLines(JNIEnv* env, jobject canvas,
345        OpenGLRenderer* renderer, jfloatArray points, jint offset, jint count, SkPaint* paint) {
346    jfloat* storage = env->GetFloatArrayElements(points, NULL);
347
348    renderer->drawLines(storage + offset, count, paint);
349
350    env->ReleaseFloatArrayElements(points, storage, 0);
351}
352
353// ----------------------------------------------------------------------------
354// Shaders and color filters
355// ----------------------------------------------------------------------------
356
357static void android_view_GLES20Canvas_resetModifiers(JNIEnv* env, jobject canvas,
358        OpenGLRenderer* renderer) {
359    renderer->resetShader();
360    renderer->resetColorFilter();
361    renderer->resetShadow();
362}
363
364static void android_view_GLES20Canvas_setupShader(JNIEnv* env, jobject canvas,
365        OpenGLRenderer* renderer, SkiaShader* shader) {
366    renderer->setupShader(shader);
367}
368
369static void android_view_GLES20Canvas_setupColorFilter(JNIEnv* env, jobject canvas,
370        OpenGLRenderer* renderer, SkiaColorFilter* filter) {
371    renderer->setupColorFilter(filter);
372}
373
374static void android_view_GLES20Canvas_setupShadow(JNIEnv* env, jobject canvas,
375        OpenGLRenderer* renderer, jfloat radius, jfloat dx, jfloat dy, jint color) {
376    renderer->setupShadow(radius, dx, dy, color);
377}
378
379// ----------------------------------------------------------------------------
380// Text
381// ----------------------------------------------------------------------------
382
383static void renderText(OpenGLRenderer* renderer, const jchar* text, int count,
384        jfloat x, jfloat y, int flags, SkPaint* paint) {
385    const jchar *workText;
386    jchar* buffer = NULL;
387    int32_t workBytes;
388    if (TextLayout::prepareText(paint, text, count, flags, &workText, &workBytes, &buffer)) {
389        renderer->drawText((const char*) workText, workBytes, count, x, y, paint);
390        free(buffer);
391    }
392}
393
394static void renderTextRun(OpenGLRenderer* renderer, const jchar* text,
395        jint start, jint count, jint contextCount, jfloat x, jfloat y,
396        int flags, SkPaint* paint) {
397    uint8_t rtl = flags & 0x1;
398    if (rtl) {
399        SkAutoSTMalloc<80, jchar> buffer(contextCount);
400        jchar* shaped = buffer.get();
401        if (TextLayout::prepareRtlTextRun(text, start, count, contextCount, shaped)) {
402            renderer->drawText((const char*) shaped, count << 1, count, x, y, paint);
403        } else {
404            LOGW("drawTextRun error");
405        }
406    } else {
407        renderer->drawText((const char*) (text + start), count << 1, count, x, y, paint);
408    }
409}
410
411static void android_view_GLES20Canvas_drawTextArray(JNIEnv* env, jobject canvas,
412        OpenGLRenderer* renderer, jcharArray text, jint index, jint count,
413        jfloat x, jfloat y, jint flags, SkPaint* paint) {
414    jchar* textArray = env->GetCharArrayElements(text, NULL);
415    renderText(renderer, textArray + index, count, x, y, flags, paint);
416    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
417}
418
419static void android_view_GLES20Canvas_drawText(JNIEnv* env, jobject canvas,
420        OpenGLRenderer* renderer, jstring text, jint start, jint end,
421        jfloat x, jfloat y, jint flags, SkPaint* paint) {
422    const jchar* textArray = env->GetStringChars(text, NULL);
423    renderText(renderer, textArray + start, end - start, x, y, flags, paint);
424    env->ReleaseStringChars(text, textArray);
425}
426
427static void android_view_GLES20Canvas_drawTextRunArray(JNIEnv* env, jobject canvas,
428        OpenGLRenderer* renderer, jcharArray text, jint index, jint count,
429        jint contextIndex, jint contextCount, jfloat x, jfloat y, jint dirFlags,
430        SkPaint* paint) {
431    jchar* textArray = env->GetCharArrayElements(text, NULL);
432    renderTextRun(renderer, textArray + contextIndex, index - contextIndex,
433            count, contextCount, x, y, dirFlags, paint);
434    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
435 }
436
437static void android_view_GLES20Canvas_drawTextRun(JNIEnv* env, jobject canvas,
438        OpenGLRenderer* renderer, jstring text, jint start, jint end,
439        jint contextStart, int contextEnd, jfloat x, jfloat y, jint dirFlags,
440        SkPaint* paint) {
441    const jchar* textArray = env->GetStringChars(text, NULL);
442    jint count = end - start;
443    jint contextCount = contextEnd - contextStart;
444    renderTextRun(renderer, textArray + contextStart, start - contextStart,
445            count, contextCount, x, y, dirFlags, paint);
446    env->ReleaseStringChars(text, textArray);
447}
448
449// ----------------------------------------------------------------------------
450// Display lists
451// ----------------------------------------------------------------------------
452
453static DisplayList* android_view_GLES20Canvas_getDisplayList(JNIEnv* env,
454        jobject canvas, DisplayListRenderer* renderer) {
455    return renderer->getDisplayList();
456}
457
458static OpenGLRenderer* android_view_GLES20Canvas_getDisplayListRenderer(JNIEnv* env,
459        jobject clazz, DisplayListRenderer* renderer) {
460    if (renderer == NULL) {
461        renderer = new DisplayListRenderer;
462    } else {
463        renderer->reset();
464    }
465    return renderer;
466}
467
468static void android_view_GLES20Canvas_destroyDisplayList(JNIEnv* env,
469        jobject clazz, DisplayList* displayList) {
470    delete displayList;
471}
472
473static void android_view_GLES20Canvas_drawDisplayList(JNIEnv* env,
474        jobject canvas, OpenGLRenderer* renderer, DisplayList* displayList) {
475    renderer->drawDisplayList(displayList);
476}
477
478// ----------------------------------------------------------------------------
479// Layers
480// ----------------------------------------------------------------------------
481
482static void android_view_GLES20Canvas_interrupt(JNIEnv* env, jobject canvas,
483        OpenGLRenderer* renderer) {
484    renderer->interrupt();
485}
486
487static void android_view_GLES20Canvas_resume(JNIEnv* env, jobject canvas,
488        OpenGLRenderer* renderer) {
489    renderer->resume();
490}
491
492static OpenGLRenderer* android_view_GLES20Canvas_createLayerRenderer(JNIEnv* env,
493        jobject clazz, Layer* layer) {
494    if (layer) {
495        return new LayerRenderer(layer);
496    }
497    return NULL;
498}
499
500static Layer* android_view_GLES20Canvas_createLayer(JNIEnv* env, jobject clazz,
501        jint width, jint height, jboolean isOpaque, jintArray layerInfo) {
502    Layer* layer = LayerRenderer::createLayer(width, height, isOpaque);
503
504    if (layer) {
505        jint* storage = env->GetIntArrayElements(layerInfo, NULL);
506        storage[0] = layer->width;
507        storage[1] = layer->height;
508        env->ReleaseIntArrayElements(layerInfo, storage, 0);
509    }
510
511    return layer;
512}
513
514static void android_view_GLES20Canvas_resizeLayer(JNIEnv* env, jobject clazz,
515        Layer* layer, jint width, jint height, jintArray layerInfo) {
516    LayerRenderer::resizeLayer(layer, width, height);
517
518    jint* storage = env->GetIntArrayElements(layerInfo, NULL);
519    storage[0] = layer->width;
520    storage[1] = layer->height;
521    env->ReleaseIntArrayElements(layerInfo, storage, 0);
522}
523
524static void android_view_GLES20Canvas_destroyLayer(JNIEnv* env, jobject clazz, Layer* layer) {
525    LayerRenderer::destroyLayer(layer);
526}
527
528static void android_view_GLES20Canvas_destroyLayerDeferred(JNIEnv* env,
529        jobject clazz, Layer* layer) {
530    LayerRenderer::destroyLayerDeferred(layer);
531}
532
533static void android_view_GLES20Canvas_drawLayer(JNIEnv* env, jobject canvas,
534        OpenGLRenderer* renderer, Layer* layer, jfloat x, jfloat y, SkPaint* paint) {
535    renderer->drawLayer(layer, x, y, paint);
536}
537
538#endif // USE_OPENGL_RENDERER
539
540// ----------------------------------------------------------------------------
541// Common
542// ----------------------------------------------------------------------------
543
544static jboolean android_view_GLES20Canvas_isAvailable(JNIEnv* env, jobject clazz) {
545#ifdef USE_OPENGL_RENDERER
546    return JNI_TRUE;
547#else
548    return JNI_FALSE;
549#endif
550}
551
552// ----------------------------------------------------------------------------
553// JNI Glue
554// ----------------------------------------------------------------------------
555
556const char* const kClassPathName = "android/view/GLES20Canvas";
557
558static JNINativeMethod gMethods[] = {
559    { "nIsAvailable",       "()Z",             (void*) android_view_GLES20Canvas_isAvailable },
560
561#ifdef USE_OPENGL_RENDERER
562    { "nCreateRenderer",    "()I",             (void*) android_view_GLES20Canvas_createRenderer },
563    { "nDestroyRenderer",   "(I)V",            (void*) android_view_GLES20Canvas_destroyRenderer },
564    { "nSetViewport",       "(III)V",          (void*) android_view_GLES20Canvas_setViewport },
565    { "nPrepare",           "(IZ)V",           (void*) android_view_GLES20Canvas_prepare },
566    { "nFinish",            "(I)V",            (void*) android_view_GLES20Canvas_finish },
567    { "nAcquireContext",    "(I)V",            (void*) android_view_GLES20Canvas_acquireContext },
568    { "nReleaseContext",    "(I)V",            (void*) android_view_GLES20Canvas_releaseContext },
569
570    { "nSave",              "(II)I",           (void*) android_view_GLES20Canvas_save },
571    { "nRestore",           "(I)V",            (void*) android_view_GLES20Canvas_restore },
572    { "nRestoreToCount",    "(II)V",           (void*) android_view_GLES20Canvas_restoreToCount },
573    { "nGetSaveCount",      "(I)I",            (void*) android_view_GLES20Canvas_getSaveCount },
574
575    { "nSaveLayer",         "(IFFFFII)I",      (void*) android_view_GLES20Canvas_saveLayer },
576    { "nSaveLayerAlpha",    "(IFFFFII)I",      (void*) android_view_GLES20Canvas_saveLayerAlpha },
577
578    { "nQuickReject",       "(IFFFFI)Z",       (void*) android_view_GLES20Canvas_quickReject },
579    { "nClipRect",          "(IFFFFI)Z",       (void*) android_view_GLES20Canvas_clipRectF },
580    { "nClipRect",          "(IIIIII)Z",       (void*) android_view_GLES20Canvas_clipRect },
581
582    { "nTranslate",         "(IFF)V",          (void*) android_view_GLES20Canvas_translate },
583    { "nRotate",            "(IF)V",           (void*) android_view_GLES20Canvas_rotate },
584    { "nScale",             "(IFF)V",          (void*) android_view_GLES20Canvas_scale },
585    { "nSkew",              "(IFF)V",          (void*) android_view_GLES20Canvas_skew },
586
587    { "nSetMatrix",         "(II)V",           (void*) android_view_GLES20Canvas_setMatrix },
588    { "nGetMatrix",         "(I)I",            (void*) android_view_GLES20Canvas_getNativeMatrix },
589    { "nGetMatrix",         "(II)V",           (void*) android_view_GLES20Canvas_getMatrix },
590    { "nConcatMatrix",      "(II)V",           (void*) android_view_GLES20Canvas_concatMatrix },
591
592    { "nDrawBitmap",        "(II[BFFI)V",      (void*) android_view_GLES20Canvas_drawBitmap },
593    { "nDrawBitmap",        "(II[BFFFFFFFFI)V",(void*) android_view_GLES20Canvas_drawBitmapRect },
594    { "nDrawBitmap",        "(II[BII)V",       (void*) android_view_GLES20Canvas_drawBitmapMatrix },
595
596    { "nDrawBitmapMesh",    "(II[BII[FI[III)V",(void*) android_view_GLES20Canvas_drawBitmapMesh },
597
598    { "nDrawPatch",         "(II[B[BFFFFI)V",  (void*) android_view_GLES20Canvas_drawPatch },
599
600    { "nDrawColor",         "(III)V",          (void*) android_view_GLES20Canvas_drawColor },
601    { "nDrawRect",          "(IFFFFI)V",       (void*) android_view_GLES20Canvas_drawRect },
602    { "nDrawRects",         "(III)V",          (void*) android_view_GLES20Canvas_drawRects },
603    { "nDrawRoundRect",     "(IFFFFFFI)V",     (void*) android_view_GLES20Canvas_drawRoundRect },
604    { "nDrawCircle",        "(IFFFI)V",        (void*) android_view_GLES20Canvas_drawCircle },
605    { "nDrawPath",          "(III)V",          (void*) android_view_GLES20Canvas_drawPath },
606    { "nDrawLines",         "(I[FIII)V",       (void*) android_view_GLES20Canvas_drawLines },
607
608    { "nResetModifiers",    "(I)V",            (void*) android_view_GLES20Canvas_resetModifiers },
609    { "nSetupShader",       "(II)V",           (void*) android_view_GLES20Canvas_setupShader },
610    { "nSetupColorFilter",  "(II)V",           (void*) android_view_GLES20Canvas_setupColorFilter },
611    { "nSetupShadow",       "(IFFFI)V",        (void*) android_view_GLES20Canvas_setupShadow },
612
613    { "nDrawText",          "(I[CIIFFII)V",    (void*) android_view_GLES20Canvas_drawTextArray },
614    { "nDrawText",          "(ILjava/lang/String;IIFFII)V",
615            (void*) android_view_GLES20Canvas_drawText },
616
617    { "nDrawTextRun",       "(I[CIIIIFFII)V",  (void*) android_view_GLES20Canvas_drawTextRunArray },
618    { "nDrawTextRun",       "(ILjava/lang/String;IIIIFFII)V",
619            (void*) android_view_GLES20Canvas_drawTextRun },
620
621    { "nGetClipBounds",     "(ILandroid/graphics/Rect;)Z",
622            (void*) android_view_GLES20Canvas_getClipBounds },
623
624    { "nGetDisplayList",         "(I)I",       (void*) android_view_GLES20Canvas_getDisplayList },
625    { "nDestroyDisplayList",     "(I)V",       (void*) android_view_GLES20Canvas_destroyDisplayList },
626    { "nGetDisplayListRenderer", "(I)I",       (void*) android_view_GLES20Canvas_getDisplayListRenderer },
627    { "nDrawDisplayList",        "(II)V",      (void*) android_view_GLES20Canvas_drawDisplayList },
628
629    { "nInterrupt",              "(I)V",       (void*) android_view_GLES20Canvas_interrupt },
630    { "nResume",                 "(I)V",       (void*) android_view_GLES20Canvas_resume },
631
632    { "nCreateLayerRenderer",    "(I)I",       (void*) android_view_GLES20Canvas_createLayerRenderer },
633    { "nCreateLayer",            "(IIZ[I)I",   (void*) android_view_GLES20Canvas_createLayer },
634    { "nResizeLayer",            "(III[I)V" ,  (void*) android_view_GLES20Canvas_resizeLayer },
635    { "nDestroyLayer",           "(I)V",       (void*) android_view_GLES20Canvas_destroyLayer },
636    { "nDestroyLayerDeferred",   "(I)V",       (void*) android_view_GLES20Canvas_destroyLayerDeferred },
637    { "nDrawLayer",              "(IIFFI)V",   (void*) android_view_GLES20Canvas_drawLayer },
638
639#endif
640};
641
642#ifdef USE_OPENGL_RENDERER
643    #define FIND_CLASS(var, className) \
644            var = env->FindClass(className); \
645            LOG_FATAL_IF(! var, "Unable to find class " className); \
646            var = jclass(env->NewGlobalRef(var));
647
648    #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor) \
649            var = env->GetMethodID(clazz, methodName, methodDescriptor); \
650            LOG_FATAL_IF(! var, "Unable to find method " methodName);
651#else
652    #define FIND_CLASS(var, className)
653    #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor)
654#endif
655
656int register_android_view_GLES20Canvas(JNIEnv* env) {
657    FIND_CLASS(gRectClassInfo.clazz, "android/graphics/Rect");
658    GET_METHOD_ID(gRectClassInfo.set, gRectClassInfo.clazz, "set", "(IIII)V");
659
660    return AndroidRuntime::registerNativeMethods(env, kClassPathName, gMethods, NELEM(gMethods));
661}
662
663};
664