android_view_GLES20Canvas.cpp revision 8b2f5267f16c295f12faab810527cd6311997e34 
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_drawOval(JNIEnv* env, jobject canvas,
330        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
331        SkPaint* paint) {
332    renderer->drawOval(left, top, right, bottom, paint);
333}
334
335static void android_view_GLES20Canvas_drawArc(JNIEnv* env, jobject canvas,
336        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
337        jfloat startAngle, jfloat sweepAngle, jboolean useCenter, SkPaint* paint) {
338    renderer->drawArc(left, top, right, bottom, startAngle, sweepAngle, useCenter, paint);
339}
340
341static void android_view_GLES20Canvas_drawRects(JNIEnv* env, jobject canvas,
342        OpenGLRenderer* renderer, SkRegion* region, SkPaint* paint) {
343    SkRegion::Iterator it(*region);
344    while (!it.done()) {
345        const SkIRect& r = it.rect();
346        renderer->drawRect(r.fLeft, r.fTop, r.fRight, r.fBottom, paint);
347        it.next();
348    }
349}
350
351static void android_view_GLES20Canvas_drawPath(JNIEnv* env, jobject canvas,
352        OpenGLRenderer* renderer, SkPath* path, SkPaint* paint) {
353    renderer->drawPath(path, paint);
354}
355
356static void android_view_GLES20Canvas_drawLines(JNIEnv* env, jobject canvas,
357        OpenGLRenderer* renderer, jfloatArray points, jint offset, jint count, SkPaint* paint) {
358    jfloat* storage = env->GetFloatArrayElements(points, NULL);
359
360    renderer->drawLines(storage + offset, count, paint);
361
362    env->ReleaseFloatArrayElements(points, storage, 0);
363}
364
365// ----------------------------------------------------------------------------
366// Shaders and color filters
367// ----------------------------------------------------------------------------
368
369static void android_view_GLES20Canvas_resetModifiers(JNIEnv* env, jobject canvas,
370        OpenGLRenderer* renderer) {
371    renderer->resetShader();
372    renderer->resetColorFilter();
373    renderer->resetShadow();
374}
375
376static void android_view_GLES20Canvas_setupShader(JNIEnv* env, jobject canvas,
377        OpenGLRenderer* renderer, SkiaShader* shader) {
378    renderer->setupShader(shader);
379}
380
381static void android_view_GLES20Canvas_setupColorFilter(JNIEnv* env, jobject canvas,
382        OpenGLRenderer* renderer, SkiaColorFilter* filter) {
383    renderer->setupColorFilter(filter);
384}
385
386static void android_view_GLES20Canvas_setupShadow(JNIEnv* env, jobject canvas,
387        OpenGLRenderer* renderer, jfloat radius, jfloat dx, jfloat dy, jint color) {
388    renderer->setupShadow(radius, dx, dy, color);
389}
390
391// ----------------------------------------------------------------------------
392// Text
393// ----------------------------------------------------------------------------
394
395static void renderText(OpenGLRenderer* renderer, const jchar* text, int count,
396        jfloat x, jfloat y, int flags, SkPaint* paint) {
397    const jchar *workText;
398    jchar* buffer = NULL;
399    int32_t workBytes;
400    if (TextLayout::prepareText(paint, text, count, flags, &workText, &workBytes, &buffer)) {
401        renderer->drawText((const char*) workText, workBytes, count, x, y, paint);
402        free(buffer);
403    }
404}
405
406static void renderTextRun(OpenGLRenderer* renderer, const jchar* text,
407        jint start, jint count, jint contextCount, jfloat x, jfloat y,
408        int flags, SkPaint* paint) {
409    uint8_t rtl = flags & 0x1;
410    if (rtl) {
411        SkAutoSTMalloc<80, jchar> buffer(contextCount);
412        jchar* shaped = buffer.get();
413        if (TextLayout::prepareRtlTextRun(text, start, count, contextCount, shaped)) {
414            renderer->drawText((const char*) shaped, count << 1, count, x, y, paint);
415        } else {
416            LOGW("drawTextRun error");
417        }
418    } else {
419        renderer->drawText((const char*) (text + start), count << 1, count, x, y, paint);
420    }
421}
422
423static void android_view_GLES20Canvas_drawTextArray(JNIEnv* env, jobject canvas,
424        OpenGLRenderer* renderer, jcharArray text, jint index, jint count,
425        jfloat x, jfloat y, jint flags, SkPaint* paint) {
426    jchar* textArray = env->GetCharArrayElements(text, NULL);
427    renderText(renderer, textArray + index, count, x, y, flags, paint);
428    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
429}
430
431static void android_view_GLES20Canvas_drawText(JNIEnv* env, jobject canvas,
432        OpenGLRenderer* renderer, jstring text, jint start, jint end,
433        jfloat x, jfloat y, jint flags, SkPaint* paint) {
434    const jchar* textArray = env->GetStringChars(text, NULL);
435    renderText(renderer, textArray + start, end - start, x, y, flags, paint);
436    env->ReleaseStringChars(text, textArray);
437}
438
439static void android_view_GLES20Canvas_drawTextRunArray(JNIEnv* env, jobject canvas,
440        OpenGLRenderer* renderer, jcharArray text, jint index, jint count,
441        jint contextIndex, jint contextCount, jfloat x, jfloat y, jint dirFlags,
442        SkPaint* paint) {
443    jchar* textArray = env->GetCharArrayElements(text, NULL);
444    renderTextRun(renderer, textArray + contextIndex, index - contextIndex,
445            count, contextCount, x, y, dirFlags, paint);
446    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
447 }
448
449static void android_view_GLES20Canvas_drawTextRun(JNIEnv* env, jobject canvas,
450        OpenGLRenderer* renderer, jstring text, jint start, jint end,
451        jint contextStart, int contextEnd, jfloat x, jfloat y, jint dirFlags,
452        SkPaint* paint) {
453    const jchar* textArray = env->GetStringChars(text, NULL);
454    jint count = end - start;
455    jint contextCount = contextEnd - contextStart;
456    renderTextRun(renderer, textArray + contextStart, start - contextStart,
457            count, contextCount, x, y, dirFlags, paint);
458    env->ReleaseStringChars(text, textArray);
459}
460
461// ----------------------------------------------------------------------------
462// Display lists
463// ----------------------------------------------------------------------------
464
465static DisplayList* android_view_GLES20Canvas_getDisplayList(JNIEnv* env,
466        jobject canvas, DisplayListRenderer* renderer) {
467    return renderer->getDisplayList();
468}
469
470static OpenGLRenderer* android_view_GLES20Canvas_getDisplayListRenderer(JNIEnv* env,
471        jobject clazz, DisplayListRenderer* renderer) {
472    if (renderer == NULL) {
473        renderer = new DisplayListRenderer;
474    } else {
475        renderer->reset();
476    }
477    return renderer;
478}
479
480static void android_view_GLES20Canvas_destroyDisplayList(JNIEnv* env,
481        jobject clazz, DisplayList* displayList) {
482    delete displayList;
483}
484
485static void android_view_GLES20Canvas_drawDisplayList(JNIEnv* env,
486        jobject canvas, OpenGLRenderer* renderer, DisplayList* displayList) {
487    renderer->drawDisplayList(displayList);
488}
489
490// ----------------------------------------------------------------------------
491// Layers
492// ----------------------------------------------------------------------------
493
494static void android_view_GLES20Canvas_interrupt(JNIEnv* env, jobject canvas,
495        OpenGLRenderer* renderer) {
496    renderer->interrupt();
497}
498
499static void android_view_GLES20Canvas_resume(JNIEnv* env, jobject canvas,
500        OpenGLRenderer* renderer) {
501    renderer->resume();
502}
503
504static OpenGLRenderer* android_view_GLES20Canvas_createLayerRenderer(JNIEnv* env,
505        jobject clazz, Layer* layer) {
506    if (layer) {
507        return new LayerRenderer(layer);
508    }
509    return NULL;
510}
511
512static Layer* android_view_GLES20Canvas_createLayer(JNIEnv* env, jobject clazz,
513        jint width, jint height, jboolean isOpaque, jintArray layerInfo) {
514    Layer* layer = LayerRenderer::createLayer(width, height, isOpaque);
515
516    if (layer) {
517        jint* storage = env->GetIntArrayElements(layerInfo, NULL);
518        storage[0] = layer->width;
519        storage[1] = layer->height;
520        env->ReleaseIntArrayElements(layerInfo, storage, 0);
521    }
522
523    return layer;
524}
525
526static void android_view_GLES20Canvas_resizeLayer(JNIEnv* env, jobject clazz,
527        Layer* layer, jint width, jint height, jintArray layerInfo) {
528    LayerRenderer::resizeLayer(layer, width, height);
529
530    jint* storage = env->GetIntArrayElements(layerInfo, NULL);
531    storage[0] = layer->width;
532    storage[1] = layer->height;
533    env->ReleaseIntArrayElements(layerInfo, storage, 0);
534}
535
536static void android_view_GLES20Canvas_destroyLayer(JNIEnv* env, jobject clazz, Layer* layer) {
537    LayerRenderer::destroyLayer(layer);
538}
539
540static void android_view_GLES20Canvas_destroyLayerDeferred(JNIEnv* env,
541        jobject clazz, Layer* layer) {
542    LayerRenderer::destroyLayerDeferred(layer);
543}
544
545static void android_view_GLES20Canvas_drawLayer(JNIEnv* env, jobject canvas,
546        OpenGLRenderer* renderer, Layer* layer, jfloat x, jfloat y, SkPaint* paint) {
547    renderer->drawLayer(layer, x, y, paint);
548}
549
550#endif // USE_OPENGL_RENDERER
551
552// ----------------------------------------------------------------------------
553// Common
554// ----------------------------------------------------------------------------
555
556static jboolean android_view_GLES20Canvas_isAvailable(JNIEnv* env, jobject clazz) {
557#ifdef USE_OPENGL_RENDERER
558    return JNI_TRUE;
559#else
560    return JNI_FALSE;
561#endif
562}
563
564// ----------------------------------------------------------------------------
565// JNI Glue
566// ----------------------------------------------------------------------------
567
568const char* const kClassPathName = "android/view/GLES20Canvas";
569
570static JNINativeMethod gMethods[] = {
571    { "nIsAvailable",       "()Z",             (void*) android_view_GLES20Canvas_isAvailable },
572
573#ifdef USE_OPENGL_RENDERER
574    { "nCreateRenderer",    "()I",             (void*) android_view_GLES20Canvas_createRenderer },
575    { "nDestroyRenderer",   "(I)V",            (void*) android_view_GLES20Canvas_destroyRenderer },
576    { "nSetViewport",       "(III)V",          (void*) android_view_GLES20Canvas_setViewport },
577    { "nPrepare",           "(IZ)V",           (void*) android_view_GLES20Canvas_prepare },
578    { "nFinish",            "(I)V",            (void*) android_view_GLES20Canvas_finish },
579    { "nAcquireContext",    "(I)V",            (void*) android_view_GLES20Canvas_acquireContext },
580    { "nReleaseContext",    "(I)V",            (void*) android_view_GLES20Canvas_releaseContext },
581
582    { "nSave",              "(II)I",           (void*) android_view_GLES20Canvas_save },
583    { "nRestore",           "(I)V",            (void*) android_view_GLES20Canvas_restore },
584    { "nRestoreToCount",    "(II)V",           (void*) android_view_GLES20Canvas_restoreToCount },
585    { "nGetSaveCount",      "(I)I",            (void*) android_view_GLES20Canvas_getSaveCount },
586
587    { "nSaveLayer",         "(IFFFFII)I",      (void*) android_view_GLES20Canvas_saveLayer },
588    { "nSaveLayerAlpha",    "(IFFFFII)I",      (void*) android_view_GLES20Canvas_saveLayerAlpha },
589
590    { "nQuickReject",       "(IFFFFI)Z",       (void*) android_view_GLES20Canvas_quickReject },
591    { "nClipRect",          "(IFFFFI)Z",       (void*) android_view_GLES20Canvas_clipRectF },
592    { "nClipRect",          "(IIIIII)Z",       (void*) android_view_GLES20Canvas_clipRect },
593
594    { "nTranslate",         "(IFF)V",          (void*) android_view_GLES20Canvas_translate },
595    { "nRotate",            "(IF)V",           (void*) android_view_GLES20Canvas_rotate },
596    { "nScale",             "(IFF)V",          (void*) android_view_GLES20Canvas_scale },
597    { "nSkew",              "(IFF)V",          (void*) android_view_GLES20Canvas_skew },
598
599    { "nSetMatrix",         "(II)V",           (void*) android_view_GLES20Canvas_setMatrix },
600    { "nGetMatrix",         "(I)I",            (void*) android_view_GLES20Canvas_getNativeMatrix },
601    { "nGetMatrix",         "(II)V",           (void*) android_view_GLES20Canvas_getMatrix },
602    { "nConcatMatrix",      "(II)V",           (void*) android_view_GLES20Canvas_concatMatrix },
603
604    { "nDrawBitmap",        "(II[BFFI)V",      (void*) android_view_GLES20Canvas_drawBitmap },
605    { "nDrawBitmap",        "(II[BFFFFFFFFI)V",(void*) android_view_GLES20Canvas_drawBitmapRect },
606    { "nDrawBitmap",        "(II[BII)V",       (void*) android_view_GLES20Canvas_drawBitmapMatrix },
607
608    { "nDrawBitmapMesh",    "(II[BII[FI[III)V",(void*) android_view_GLES20Canvas_drawBitmapMesh },
609
610    { "nDrawPatch",         "(II[B[BFFFFI)V",  (void*) android_view_GLES20Canvas_drawPatch },
611
612    { "nDrawColor",         "(III)V",          (void*) android_view_GLES20Canvas_drawColor },
613    { "nDrawRect",          "(IFFFFI)V",       (void*) android_view_GLES20Canvas_drawRect },
614    { "nDrawRects",         "(III)V",          (void*) android_view_GLES20Canvas_drawRects },
615    { "nDrawRoundRect",     "(IFFFFFFI)V",     (void*) android_view_GLES20Canvas_drawRoundRect },
616    { "nDrawCircle",        "(IFFFI)V",        (void*) android_view_GLES20Canvas_drawCircle },
617    { "nDrawOval",          "(IFFFFI)V",       (void*) android_view_GLES20Canvas_drawOval },
618    { "nDrawArc",           "(IFFFFFFZI)V",    (void*) android_view_GLES20Canvas_drawArc },
619
620    { "nDrawPath",          "(III)V",          (void*) android_view_GLES20Canvas_drawPath },
621    { "nDrawLines",         "(I[FIII)V",       (void*) android_view_GLES20Canvas_drawLines },
622
623    { "nResetModifiers",    "(I)V",            (void*) android_view_GLES20Canvas_resetModifiers },
624    { "nSetupShader",       "(II)V",           (void*) android_view_GLES20Canvas_setupShader },
625    { "nSetupColorFilter",  "(II)V",           (void*) android_view_GLES20Canvas_setupColorFilter },
626    { "nSetupShadow",       "(IFFFI)V",        (void*) android_view_GLES20Canvas_setupShadow },
627
628    { "nDrawText",          "(I[CIIFFII)V",    (void*) android_view_GLES20Canvas_drawTextArray },
629    { "nDrawText",          "(ILjava/lang/String;IIFFII)V",
630            (void*) android_view_GLES20Canvas_drawText },
631
632    { "nDrawTextRun",       "(I[CIIIIFFII)V",  (void*) android_view_GLES20Canvas_drawTextRunArray },
633    { "nDrawTextRun",       "(ILjava/lang/String;IIIIFFII)V",
634            (void*) android_view_GLES20Canvas_drawTextRun },
635
636    { "nGetClipBounds",     "(ILandroid/graphics/Rect;)Z",
637            (void*) android_view_GLES20Canvas_getClipBounds },
638
639    { "nGetDisplayList",         "(I)I",       (void*) android_view_GLES20Canvas_getDisplayList },
640    { "nDestroyDisplayList",     "(I)V",       (void*) android_view_GLES20Canvas_destroyDisplayList },
641    { "nGetDisplayListRenderer", "(I)I",       (void*) android_view_GLES20Canvas_getDisplayListRenderer },
642    { "nDrawDisplayList",        "(II)V",      (void*) android_view_GLES20Canvas_drawDisplayList },
643
644    { "nInterrupt",              "(I)V",       (void*) android_view_GLES20Canvas_interrupt },
645    { "nResume",                 "(I)V",       (void*) android_view_GLES20Canvas_resume },
646
647    { "nCreateLayerRenderer",    "(I)I",       (void*) android_view_GLES20Canvas_createLayerRenderer },
648    { "nCreateLayer",            "(IIZ[I)I",   (void*) android_view_GLES20Canvas_createLayer },
649    { "nResizeLayer",            "(III[I)V" ,  (void*) android_view_GLES20Canvas_resizeLayer },
650    { "nDestroyLayer",           "(I)V",       (void*) android_view_GLES20Canvas_destroyLayer },
651    { "nDestroyLayerDeferred",   "(I)V",       (void*) android_view_GLES20Canvas_destroyLayerDeferred },
652    { "nDrawLayer",              "(IIFFI)V",   (void*) android_view_GLES20Canvas_drawLayer },
653
654#endif
655};
656
657#ifdef USE_OPENGL_RENDERER
658    #define FIND_CLASS(var, className) \
659            var = env->FindClass(className); \
660            LOG_FATAL_IF(! var, "Unable to find class " className); \
661            var = jclass(env->NewGlobalRef(var));
662
663    #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor) \
664            var = env->GetMethodID(clazz, methodName, methodDescriptor); \
665            LOG_FATAL_IF(! var, "Unable to find method " methodName);
666#else
667    #define FIND_CLASS(var, className)
668    #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor)
669#endif
670
671int register_android_view_GLES20Canvas(JNIEnv* env) {
672    FIND_CLASS(gRectClassInfo.clazz, "android/graphics/Rect");
673    GET_METHOD_ID(gRectClassInfo.set, gRectClassInfo.clazz, "set", "(IIII)V");
674
675    return AndroidRuntime::registerNativeMethods(env, kClassPathName, gMethods, NELEM(gMethods));
676}
677
678};
679