android_view_GLES20Canvas.cpp revision c1cd9ba335b293f11e1082447ef08e474710a05f 
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_drawRects(JNIEnv* env, jobject canvas,
336        OpenGLRenderer* renderer, SkRegion* region, SkPaint* paint) {
337    SkRegion::Iterator it(*region);
338    while (!it.done()) {
339        const SkIRect& r = it.rect();
340        renderer->drawRect(r.fLeft, r.fTop, r.fRight, r.fBottom, paint);
341        it.next();
342    }
343}
344
345static void android_view_GLES20Canvas_drawPath(JNIEnv* env, jobject canvas,
346        OpenGLRenderer* renderer, SkPath* path, SkPaint* paint) {
347    renderer->drawPath(path, paint);
348}
349
350static void android_view_GLES20Canvas_drawLines(JNIEnv* env, jobject canvas,
351        OpenGLRenderer* renderer, jfloatArray points, jint offset, jint count, SkPaint* paint) {
352    jfloat* storage = env->GetFloatArrayElements(points, NULL);
353
354    renderer->drawLines(storage + offset, count, paint);
355
356    env->ReleaseFloatArrayElements(points, storage, 0);
357}
358
359// ----------------------------------------------------------------------------
360// Shaders and color filters
361// ----------------------------------------------------------------------------
362
363static void android_view_GLES20Canvas_resetModifiers(JNIEnv* env, jobject canvas,
364        OpenGLRenderer* renderer) {
365    renderer->resetShader();
366    renderer->resetColorFilter();
367    renderer->resetShadow();
368}
369
370static void android_view_GLES20Canvas_setupShader(JNIEnv* env, jobject canvas,
371        OpenGLRenderer* renderer, SkiaShader* shader) {
372    renderer->setupShader(shader);
373}
374
375static void android_view_GLES20Canvas_setupColorFilter(JNIEnv* env, jobject canvas,
376        OpenGLRenderer* renderer, SkiaColorFilter* filter) {
377    renderer->setupColorFilter(filter);
378}
379
380static void android_view_GLES20Canvas_setupShadow(JNIEnv* env, jobject canvas,
381        OpenGLRenderer* renderer, jfloat radius, jfloat dx, jfloat dy, jint color) {
382    renderer->setupShadow(radius, dx, dy, color);
383}
384
385// ----------------------------------------------------------------------------
386// Text
387// ----------------------------------------------------------------------------
388
389static void renderText(OpenGLRenderer* renderer, const jchar* text, int count,
390        jfloat x, jfloat y, int flags, SkPaint* paint) {
391    const jchar *workText;
392    jchar* buffer = NULL;
393    int32_t workBytes;
394    if (TextLayout::prepareText(paint, text, count, flags, &workText, &workBytes, &buffer)) {
395        renderer->drawText((const char*) workText, workBytes, count, x, y, paint);
396        free(buffer);
397    }
398}
399
400static void renderTextRun(OpenGLRenderer* renderer, const jchar* text,
401        jint start, jint count, jint contextCount, jfloat x, jfloat y,
402        int flags, SkPaint* paint) {
403    uint8_t rtl = flags & 0x1;
404    if (rtl) {
405        SkAutoSTMalloc<80, jchar> buffer(contextCount);
406        jchar* shaped = buffer.get();
407        if (TextLayout::prepareRtlTextRun(text, start, count, contextCount, shaped)) {
408            renderer->drawText((const char*) shaped, count << 1, count, x, y, paint);
409        } else {
410            LOGW("drawTextRun error");
411        }
412    } else {
413        renderer->drawText((const char*) (text + start), count << 1, count, x, y, paint);
414    }
415}
416
417static void android_view_GLES20Canvas_drawTextArray(JNIEnv* env, jobject canvas,
418        OpenGLRenderer* renderer, jcharArray text, jint index, jint count,
419        jfloat x, jfloat y, jint flags, SkPaint* paint) {
420    jchar* textArray = env->GetCharArrayElements(text, NULL);
421    renderText(renderer, textArray + index, count, x, y, flags, paint);
422    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
423}
424
425static void android_view_GLES20Canvas_drawText(JNIEnv* env, jobject canvas,
426        OpenGLRenderer* renderer, jstring text, jint start, jint end,
427        jfloat x, jfloat y, jint flags, SkPaint* paint) {
428    const jchar* textArray = env->GetStringChars(text, NULL);
429    renderText(renderer, textArray + start, end - start, x, y, flags, paint);
430    env->ReleaseStringChars(text, textArray);
431}
432
433static void android_view_GLES20Canvas_drawTextRunArray(JNIEnv* env, jobject canvas,
434        OpenGLRenderer* renderer, jcharArray text, jint index, jint count,
435        jint contextIndex, jint contextCount, jfloat x, jfloat y, jint dirFlags,
436        SkPaint* paint) {
437    jchar* textArray = env->GetCharArrayElements(text, NULL);
438    renderTextRun(renderer, textArray + contextIndex, index - contextIndex,
439            count, contextCount, x, y, dirFlags, paint);
440    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
441 }
442
443static void android_view_GLES20Canvas_drawTextRun(JNIEnv* env, jobject canvas,
444        OpenGLRenderer* renderer, jstring text, jint start, jint end,
445        jint contextStart, int contextEnd, jfloat x, jfloat y, jint dirFlags,
446        SkPaint* paint) {
447    const jchar* textArray = env->GetStringChars(text, NULL);
448    jint count = end - start;
449    jint contextCount = contextEnd - contextStart;
450    renderTextRun(renderer, textArray + contextStart, start - contextStart,
451            count, contextCount, x, y, dirFlags, paint);
452    env->ReleaseStringChars(text, textArray);
453}
454
455// ----------------------------------------------------------------------------
456// Display lists
457// ----------------------------------------------------------------------------
458
459static DisplayList* android_view_GLES20Canvas_getDisplayList(JNIEnv* env,
460        jobject canvas, DisplayListRenderer* renderer) {
461    return renderer->getDisplayList();
462}
463
464static OpenGLRenderer* android_view_GLES20Canvas_getDisplayListRenderer(JNIEnv* env,
465        jobject clazz, DisplayListRenderer* renderer) {
466    if (renderer == NULL) {
467        renderer = new DisplayListRenderer;
468    } else {
469        renderer->reset();
470    }
471    return renderer;
472}
473
474static void android_view_GLES20Canvas_destroyDisplayList(JNIEnv* env,
475        jobject clazz, DisplayList* displayList) {
476    delete displayList;
477}
478
479static void android_view_GLES20Canvas_drawDisplayList(JNIEnv* env,
480        jobject canvas, OpenGLRenderer* renderer, DisplayList* displayList) {
481    renderer->drawDisplayList(displayList);
482}
483
484// ----------------------------------------------------------------------------
485// Layers
486// ----------------------------------------------------------------------------
487
488static void android_view_GLES20Canvas_interrupt(JNIEnv* env, jobject canvas,
489        OpenGLRenderer* renderer) {
490    renderer->interrupt();
491}
492
493static void android_view_GLES20Canvas_resume(JNIEnv* env, jobject canvas,
494        OpenGLRenderer* renderer) {
495    renderer->resume();
496}
497
498static OpenGLRenderer* android_view_GLES20Canvas_createLayerRenderer(JNIEnv* env,
499        jobject clazz, Layer* layer) {
500    if (layer) {
501        return new LayerRenderer(layer);
502    }
503    return NULL;
504}
505
506static Layer* android_view_GLES20Canvas_createLayer(JNIEnv* env, jobject clazz,
507        jint width, jint height, jboolean isOpaque, jintArray layerInfo) {
508    Layer* layer = LayerRenderer::createLayer(width, height, isOpaque);
509
510    if (layer) {
511        jint* storage = env->GetIntArrayElements(layerInfo, NULL);
512        storage[0] = layer->width;
513        storage[1] = layer->height;
514        env->ReleaseIntArrayElements(layerInfo, storage, 0);
515    }
516
517    return layer;
518}
519
520static void android_view_GLES20Canvas_resizeLayer(JNIEnv* env, jobject clazz,
521        Layer* layer, jint width, jint height, jintArray layerInfo) {
522    LayerRenderer::resizeLayer(layer, width, height);
523
524    jint* storage = env->GetIntArrayElements(layerInfo, NULL);
525    storage[0] = layer->width;
526    storage[1] = layer->height;
527    env->ReleaseIntArrayElements(layerInfo, storage, 0);
528}
529
530static void android_view_GLES20Canvas_destroyLayer(JNIEnv* env, jobject clazz, Layer* layer) {
531    LayerRenderer::destroyLayer(layer);
532}
533
534static void android_view_GLES20Canvas_destroyLayerDeferred(JNIEnv* env,
535        jobject clazz, Layer* layer) {
536    LayerRenderer::destroyLayerDeferred(layer);
537}
538
539static void android_view_GLES20Canvas_drawLayer(JNIEnv* env, jobject canvas,
540        OpenGLRenderer* renderer, Layer* layer, jfloat x, jfloat y, SkPaint* paint) {
541    renderer->drawLayer(layer, x, y, paint);
542}
543
544#endif // USE_OPENGL_RENDERER
545
546// ----------------------------------------------------------------------------
547// Common
548// ----------------------------------------------------------------------------
549
550static jboolean android_view_GLES20Canvas_isAvailable(JNIEnv* env, jobject clazz) {
551#ifdef USE_OPENGL_RENDERER
552    return JNI_TRUE;
553#else
554    return JNI_FALSE;
555#endif
556}
557
558// ----------------------------------------------------------------------------
559// JNI Glue
560// ----------------------------------------------------------------------------
561
562const char* const kClassPathName = "android/view/GLES20Canvas";
563
564static JNINativeMethod gMethods[] = {
565    { "nIsAvailable",       "()Z",             (void*) android_view_GLES20Canvas_isAvailable },
566
567#ifdef USE_OPENGL_RENDERER
568    { "nCreateRenderer",    "()I",             (void*) android_view_GLES20Canvas_createRenderer },
569    { "nDestroyRenderer",   "(I)V",            (void*) android_view_GLES20Canvas_destroyRenderer },
570    { "nSetViewport",       "(III)V",          (void*) android_view_GLES20Canvas_setViewport },
571    { "nPrepare",           "(IZ)V",           (void*) android_view_GLES20Canvas_prepare },
572    { "nFinish",            "(I)V",            (void*) android_view_GLES20Canvas_finish },
573    { "nAcquireContext",    "(I)V",            (void*) android_view_GLES20Canvas_acquireContext },
574    { "nReleaseContext",    "(I)V",            (void*) android_view_GLES20Canvas_releaseContext },
575
576    { "nSave",              "(II)I",           (void*) android_view_GLES20Canvas_save },
577    { "nRestore",           "(I)V",            (void*) android_view_GLES20Canvas_restore },
578    { "nRestoreToCount",    "(II)V",           (void*) android_view_GLES20Canvas_restoreToCount },
579    { "nGetSaveCount",      "(I)I",            (void*) android_view_GLES20Canvas_getSaveCount },
580
581    { "nSaveLayer",         "(IFFFFII)I",      (void*) android_view_GLES20Canvas_saveLayer },
582    { "nSaveLayerAlpha",    "(IFFFFII)I",      (void*) android_view_GLES20Canvas_saveLayerAlpha },
583
584    { "nQuickReject",       "(IFFFFI)Z",       (void*) android_view_GLES20Canvas_quickReject },
585    { "nClipRect",          "(IFFFFI)Z",       (void*) android_view_GLES20Canvas_clipRectF },
586    { "nClipRect",          "(IIIIII)Z",       (void*) android_view_GLES20Canvas_clipRect },
587
588    { "nTranslate",         "(IFF)V",          (void*) android_view_GLES20Canvas_translate },
589    { "nRotate",            "(IF)V",           (void*) android_view_GLES20Canvas_rotate },
590    { "nScale",             "(IFF)V",          (void*) android_view_GLES20Canvas_scale },
591    { "nSkew",              "(IFF)V",          (void*) android_view_GLES20Canvas_skew },
592
593    { "nSetMatrix",         "(II)V",           (void*) android_view_GLES20Canvas_setMatrix },
594    { "nGetMatrix",         "(I)I",            (void*) android_view_GLES20Canvas_getNativeMatrix },
595    { "nGetMatrix",         "(II)V",           (void*) android_view_GLES20Canvas_getMatrix },
596    { "nConcatMatrix",      "(II)V",           (void*) android_view_GLES20Canvas_concatMatrix },
597
598    { "nDrawBitmap",        "(II[BFFI)V",      (void*) android_view_GLES20Canvas_drawBitmap },
599    { "nDrawBitmap",        "(II[BFFFFFFFFI)V",(void*) android_view_GLES20Canvas_drawBitmapRect },
600    { "nDrawBitmap",        "(II[BII)V",       (void*) android_view_GLES20Canvas_drawBitmapMatrix },
601
602    { "nDrawBitmapMesh",    "(II[BII[FI[III)V",(void*) android_view_GLES20Canvas_drawBitmapMesh },
603
604    { "nDrawPatch",         "(II[B[BFFFFI)V",  (void*) android_view_GLES20Canvas_drawPatch },
605
606    { "nDrawColor",         "(III)V",          (void*) android_view_GLES20Canvas_drawColor },
607    { "nDrawRect",          "(IFFFFI)V",       (void*) android_view_GLES20Canvas_drawRect },
608    { "nDrawRects",         "(III)V",          (void*) android_view_GLES20Canvas_drawRects },
609    { "nDrawRoundRect",     "(IFFFFFFI)V",     (void*) android_view_GLES20Canvas_drawRoundRect },
610    { "nDrawCircle",        "(IFFFI)V",        (void*) android_view_GLES20Canvas_drawCircle },
611    { "nDrawOval",          "(IFFFFI)V",       (void*) android_view_GLES20Canvas_drawOval },
612    { "nDrawPath",          "(III)V",          (void*) android_view_GLES20Canvas_drawPath },
613    { "nDrawLines",         "(I[FIII)V",       (void*) android_view_GLES20Canvas_drawLines },
614
615    { "nResetModifiers",    "(I)V",            (void*) android_view_GLES20Canvas_resetModifiers },
616    { "nSetupShader",       "(II)V",           (void*) android_view_GLES20Canvas_setupShader },
617    { "nSetupColorFilter",  "(II)V",           (void*) android_view_GLES20Canvas_setupColorFilter },
618    { "nSetupShadow",       "(IFFFI)V",        (void*) android_view_GLES20Canvas_setupShadow },
619
620    { "nDrawText",          "(I[CIIFFII)V",    (void*) android_view_GLES20Canvas_drawTextArray },
621    { "nDrawText",          "(ILjava/lang/String;IIFFII)V",
622            (void*) android_view_GLES20Canvas_drawText },
623
624    { "nDrawTextRun",       "(I[CIIIIFFII)V",  (void*) android_view_GLES20Canvas_drawTextRunArray },
625    { "nDrawTextRun",       "(ILjava/lang/String;IIIIFFII)V",
626            (void*) android_view_GLES20Canvas_drawTextRun },
627
628    { "nGetClipBounds",     "(ILandroid/graphics/Rect;)Z",
629            (void*) android_view_GLES20Canvas_getClipBounds },
630
631    { "nGetDisplayList",         "(I)I",       (void*) android_view_GLES20Canvas_getDisplayList },
632    { "nDestroyDisplayList",     "(I)V",       (void*) android_view_GLES20Canvas_destroyDisplayList },
633    { "nGetDisplayListRenderer", "(I)I",       (void*) android_view_GLES20Canvas_getDisplayListRenderer },
634    { "nDrawDisplayList",        "(II)V",      (void*) android_view_GLES20Canvas_drawDisplayList },
635
636    { "nInterrupt",              "(I)V",       (void*) android_view_GLES20Canvas_interrupt },
637    { "nResume",                 "(I)V",       (void*) android_view_GLES20Canvas_resume },
638
639    { "nCreateLayerRenderer",    "(I)I",       (void*) android_view_GLES20Canvas_createLayerRenderer },
640    { "nCreateLayer",            "(IIZ[I)I",   (void*) android_view_GLES20Canvas_createLayer },
641    { "nResizeLayer",            "(III[I)V" ,  (void*) android_view_GLES20Canvas_resizeLayer },
642    { "nDestroyLayer",           "(I)V",       (void*) android_view_GLES20Canvas_destroyLayer },
643    { "nDestroyLayerDeferred",   "(I)V",       (void*) android_view_GLES20Canvas_destroyLayerDeferred },
644    { "nDrawLayer",              "(IIFFI)V",   (void*) android_view_GLES20Canvas_drawLayer },
645
646#endif
647};
648
649#ifdef USE_OPENGL_RENDERER
650    #define FIND_CLASS(var, className) \
651            var = env->FindClass(className); \
652            LOG_FATAL_IF(! var, "Unable to find class " className); \
653            var = jclass(env->NewGlobalRef(var));
654
655    #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor) \
656            var = env->GetMethodID(clazz, methodName, methodDescriptor); \
657            LOG_FATAL_IF(! var, "Unable to find method " methodName);
658#else
659    #define FIND_CLASS(var, className)
660    #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor)
661#endif
662
663int register_android_view_GLES20Canvas(JNIEnv* env) {
664    FIND_CLASS(gRectClassInfo.clazz, "android/graphics/Rect");
665    GET_METHOD_ID(gRectClassInfo.set, gRectClassInfo.clazz, "set", "(IIII)V");
666
667    return AndroidRuntime::registerNativeMethods(env, kClassPathName, gMethods, NELEM(gMethods));
668}
669
670};
671