android_view_GLES20Canvas.cpp revision 9b8c5f61432b7f12a216567409fa7baed6b74452 
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 <EGL/egl.h>
20
21#include "jni.h"
22#include "GraphicsJNI.h"
23#include <nativehelper/JNIHelp.h>
24#include <android_runtime/AndroidRuntime.h>
25#include <utils/ResourceTypes.h>
26
27#include <SkBitmap.h>
28#include <SkCanvas.h>
29#include <SkMatrix.h>
30#include <SkPaint.h>
31#include <SkRegion.h>
32#include <SkScalerContext.h>
33#include <SkTemplates.h>
34#include <SkXfermode.h>
35
36#include <DisplayListRenderer.h>
37#include <LayerRenderer.h>
38#include <OpenGLRenderer.h>
39#include <SkiaShader.h>
40#include <SkiaColorFilter.h>
41#include <Rect.h>
42
43#include "TextLayout.h"
44
45namespace android {
46
47using namespace uirenderer;
48
49/**
50 * Note: OpenGLRenderer JNI layer is generated and compiled only on supported
51 *       devices. This means all the logic must be compiled only when the
52 *       preprocessor variable USE_OPENGL_RENDERER is defined.
53 */
54#ifdef USE_OPENGL_RENDERER
55
56///////////////////////////////////////////////////////////////////////////////
57// Defines
58///////////////////////////////////////////////////////////////////////////////
59
60// Debug
61#define DEBUG_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    jmethodID set;
74} gRectClassInfo;
75
76// ----------------------------------------------------------------------------
77// Misc
78// ----------------------------------------------------------------------------
79
80static jboolean android_view_GLES20Canvas_preserveBackBuffer(JNIEnv* env, jobject clazz) {
81    EGLDisplay display = eglGetCurrentDisplay();
82    EGLSurface surface = eglGetCurrentSurface(EGL_DRAW);
83
84    eglGetError();
85    eglSurfaceAttrib(display, surface, EGL_SWAP_BEHAVIOR, EGL_BUFFER_PRESERVED);
86
87    EGLint error = eglGetError();
88    RENDERER_LOGD("Could not enable buffer preserved swap behavior (%x)", error);
89
90    return error == EGL_SUCCESS;
91}
92
93// ----------------------------------------------------------------------------
94// Constructors
95// ----------------------------------------------------------------------------
96
97static OpenGLRenderer* android_view_GLES20Canvas_createRenderer(JNIEnv* env, jobject clazz) {
98    RENDERER_LOGD("Create OpenGLRenderer");
99    return new OpenGLRenderer;
100}
101
102static void android_view_GLES20Canvas_destroyRenderer(JNIEnv* env, jobject clazz,
103        OpenGLRenderer* renderer) {
104    RENDERER_LOGD("Destroy OpenGLRenderer");
105    delete renderer;
106}
107
108// ----------------------------------------------------------------------------
109// Setup
110// ----------------------------------------------------------------------------
111
112static void android_view_GLES20Canvas_setViewport(JNIEnv* env, jobject clazz,
113        OpenGLRenderer* renderer, jint width, jint height) {
114    renderer->setViewport(width, height);
115}
116
117static void android_view_GLES20Canvas_prepare(JNIEnv* env, jobject clazz,
118        OpenGLRenderer* renderer, jboolean opaque) {
119    renderer->prepare(opaque);
120}
121
122static void android_view_GLES20Canvas_prepareDirty(JNIEnv* env, jobject clazz,
123        OpenGLRenderer* renderer, jint left, jint top, jint right, jint bottom,
124        jboolean opaque) {
125    renderer->prepareDirty(left, top, right, bottom, opaque);
126}
127
128static void android_view_GLES20Canvas_finish(JNIEnv* env, jobject clazz,
129        OpenGLRenderer* renderer) {
130    renderer->finish();
131}
132
133static bool android_view_GLES20Canvas_callDrawGLFunction(JNIEnv* env, jobject clazz,
134        OpenGLRenderer* renderer, Functor *functor) {
135    android::uirenderer::Rect dirty;
136    return renderer->callDrawGLFunction(functor, dirty);
137}
138
139// ----------------------------------------------------------------------------
140// State
141// ----------------------------------------------------------------------------
142
143static jint android_view_GLES20Canvas_save(JNIEnv* env, jobject clazz, OpenGLRenderer* renderer,
144        jint flags) {
145    return renderer->save(flags);
146}
147
148static jint android_view_GLES20Canvas_getSaveCount(JNIEnv* env, jobject clazz,
149        OpenGLRenderer* renderer) {
150    return renderer->getSaveCount();
151}
152
153static void android_view_GLES20Canvas_restore(JNIEnv* env, jobject clazz,
154        OpenGLRenderer* renderer) {
155    renderer->restore();
156}
157
158static void android_view_GLES20Canvas_restoreToCount(JNIEnv* env, jobject clazz,
159        OpenGLRenderer* renderer, jint saveCount) {
160    renderer->restoreToCount(saveCount);
161}
162
163// ----------------------------------------------------------------------------
164// Layers
165// ----------------------------------------------------------------------------
166
167static jint android_view_GLES20Canvas_saveLayer(JNIEnv* env, jobject clazz,
168        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
169        SkPaint* paint, jint saveFlags) {
170    return renderer->saveLayer(left, top, right, bottom, paint, saveFlags);
171}
172
173static jint android_view_GLES20Canvas_saveLayerAlpha(JNIEnv* env, jobject clazz,
174        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
175        jint alpha, jint saveFlags) {
176    return renderer->saveLayerAlpha(left, top, right, bottom, alpha, saveFlags);
177}
178
179// ----------------------------------------------------------------------------
180// Clipping
181// ----------------------------------------------------------------------------
182
183static bool android_view_GLES20Canvas_quickReject(JNIEnv* env, jobject clazz,
184        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
185        SkCanvas::EdgeType edge) {
186    return renderer->quickReject(left, top, right, bottom);
187}
188
189static bool android_view_GLES20Canvas_clipRectF(JNIEnv* env, jobject clazz,
190        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
191        SkRegion::Op op) {
192    return renderer->clipRect(left, top, right, bottom, op);
193}
194
195static bool android_view_GLES20Canvas_clipRect(JNIEnv* env, jobject clazz,
196        OpenGLRenderer* renderer, jint left, jint top, jint right, jint bottom,
197        SkRegion::Op op) {
198    return renderer->clipRect(float(left), float(top), float(right), float(bottom), op);
199}
200
201static bool android_view_GLES20Canvas_getClipBounds(JNIEnv* env, jobject clazz,
202        OpenGLRenderer* renderer, jobject rect) {
203    const android::uirenderer::Rect& bounds(renderer->getClipBounds());
204
205    env->CallVoidMethod(rect, gRectClassInfo.set,
206            int(bounds.left), int(bounds.top), int(bounds.right), int(bounds.bottom));
207
208    return !bounds.isEmpty();
209}
210
211// ----------------------------------------------------------------------------
212// Transforms
213// ----------------------------------------------------------------------------
214
215static void android_view_GLES20Canvas_translate(JNIEnv* env, jobject clazz,
216        OpenGLRenderer* renderer, jfloat dx, jfloat dy) {
217    renderer->translate(dx, dy);
218}
219
220static void android_view_GLES20Canvas_rotate(JNIEnv* env, jobject clazz,
221        OpenGLRenderer* renderer, jfloat degrees) {
222    renderer->rotate(degrees);
223}
224
225static void android_view_GLES20Canvas_scale(JNIEnv* env, jobject clazz,
226        OpenGLRenderer* renderer, jfloat sx, jfloat sy) {
227    renderer->scale(sx, sy);
228}
229
230static void android_view_GLES20Canvas_skew(JNIEnv* env, jobject clazz,
231        OpenGLRenderer* renderer, jfloat sx, jfloat sy) {
232    renderer->skew(sx, sy);
233}
234
235static void android_view_GLES20Canvas_setMatrix(JNIEnv* env, jobject clazz,
236        OpenGLRenderer* renderer, SkMatrix* matrix) {
237    renderer->setMatrix(matrix);
238}
239
240static const float* android_view_GLES20Canvas_getNativeMatrix(JNIEnv* env,
241        jobject clazz, OpenGLRenderer* renderer) {
242    return renderer->getMatrix();
243}
244
245static void android_view_GLES20Canvas_getMatrix(JNIEnv* env, jobject clazz,
246        OpenGLRenderer* renderer, SkMatrix* matrix) {
247    renderer->getMatrix(matrix);
248}
249
250static void android_view_GLES20Canvas_concatMatrix(JNIEnv* env, jobject clazz,
251        OpenGLRenderer* renderer, SkMatrix* matrix) {
252    renderer->concatMatrix(matrix);
253}
254
255// ----------------------------------------------------------------------------
256// Drawing
257// ----------------------------------------------------------------------------
258
259static void android_view_GLES20Canvas_drawBitmap(JNIEnv* env, jobject clazz,
260        OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer, float left,
261        float top, SkPaint* paint) {
262    // This object allows the renderer to allocate a global JNI ref to the buffer object.
263    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
264
265    renderer->drawBitmap(bitmap, left, top, paint);
266}
267
268static void android_view_GLES20Canvas_drawBitmapRect(JNIEnv* env, jobject clazz,
269        OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer,
270        float srcLeft, float srcTop, float srcRight, float srcBottom,
271        float dstLeft, float dstTop, float dstRight, float dstBottom, SkPaint* paint) {
272    // This object allows the renderer to allocate a global JNI ref to the buffer object.
273    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
274
275    renderer->drawBitmap(bitmap, srcLeft, srcTop, srcRight, srcBottom,
276            dstLeft, dstTop, dstRight, dstBottom, paint);
277}
278
279static void android_view_GLES20Canvas_drawBitmapMatrix(JNIEnv* env, jobject clazz,
280        OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer, SkMatrix* matrix,
281        SkPaint* paint) {
282    // This object allows the renderer to allocate a global JNI ref to the buffer object.
283    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
284
285    renderer->drawBitmap(bitmap, matrix, paint);
286}
287
288static void android_view_GLES20Canvas_drawBitmapMesh(JNIEnv* env, jobject clazz,
289        OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer,
290        jint meshWidth, jint meshHeight, jfloatArray vertices, jint offset,
291        jintArray colors, jint colorOffset, SkPaint* paint) {
292    // This object allows the renderer to allocate a global JNI ref to the buffer object.
293    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
294
295    jfloat* verticesArray = vertices ? env->GetFloatArrayElements(vertices, NULL) + offset : NULL;
296    jint* colorsArray = colors ? env->GetIntArrayElements(colors, NULL) + colorOffset : NULL;
297
298    renderer->drawBitmapMesh(bitmap, meshWidth, meshHeight, verticesArray, colorsArray, paint);
299
300    if (vertices) env->ReleaseFloatArrayElements(vertices, verticesArray, 0);
301    if (colors) env->ReleaseIntArrayElements(colors, colorsArray, 0);
302}
303
304static void android_view_GLES20Canvas_drawPatch(JNIEnv* env, jobject clazz,
305        OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer, jbyteArray chunks,
306        float left, float top, float right, float bottom, SkPaint* paint) {
307    // This object allows the renderer to allocate a global JNI ref to the buffer object.
308    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
309
310    jbyte* storage = env->GetByteArrayElements(chunks, NULL);
311    Res_png_9patch* patch = reinterpret_cast<Res_png_9patch*>(storage);
312    Res_png_9patch::deserialize(patch);
313
314    renderer->drawPatch(bitmap, &patch->xDivs[0], &patch->yDivs[0],
315            &patch->colors[0], patch->numXDivs, patch->numYDivs, patch->numColors,
316            left, top, right, bottom, paint);
317
318    env->ReleaseByteArrayElements(chunks, storage, 0);
319}
320
321static void android_view_GLES20Canvas_drawColor(JNIEnv* env, jobject clazz,
322        OpenGLRenderer* renderer, jint color, SkXfermode::Mode mode) {
323    renderer->drawColor(color, mode);
324}
325
326static void android_view_GLES20Canvas_drawRect(JNIEnv* env, jobject clazz,
327        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
328        SkPaint* paint) {
329    renderer->drawRect(left, top, right, bottom, paint);
330}
331
332static void android_view_GLES20Canvas_drawRoundRect(JNIEnv* env, jobject clazz,
333        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
334        jfloat rx, jfloat ry, SkPaint* paint) {
335    renderer->drawRoundRect(left, top, right, bottom, rx, ry, paint);
336}
337
338static void android_view_GLES20Canvas_drawCircle(JNIEnv* env, jobject clazz,
339        OpenGLRenderer* renderer, jfloat x, jfloat y, jfloat radius, SkPaint* paint) {
340    renderer->drawCircle(x, y, radius, paint);
341}
342
343static void android_view_GLES20Canvas_drawOval(JNIEnv* env, jobject clazz,
344        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
345        SkPaint* paint) {
346    renderer->drawOval(left, top, right, bottom, paint);
347}
348
349static void android_view_GLES20Canvas_drawArc(JNIEnv* env, jobject clazz,
350        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
351        jfloat startAngle, jfloat sweepAngle, jboolean useCenter, SkPaint* paint) {
352    renderer->drawArc(left, top, right, bottom, startAngle, sweepAngle, useCenter, paint);
353}
354
355static void android_view_GLES20Canvas_drawRects(JNIEnv* env, jobject clazz,
356        OpenGLRenderer* renderer, SkRegion* region, SkPaint* paint) {
357    SkRegion::Iterator it(*region);
358    while (!it.done()) {
359        const SkIRect& r = it.rect();
360        renderer->drawRect(r.fLeft, r.fTop, r.fRight, r.fBottom, paint);
361        it.next();
362    }
363}
364
365static void android_view_GLES20Canvas_drawPath(JNIEnv* env, jobject clazz,
366        OpenGLRenderer* renderer, SkPath* path, SkPaint* paint) {
367    renderer->drawPath(path, paint);
368}
369
370static void android_view_GLES20Canvas_drawLines(JNIEnv* env, jobject clazz,
371        OpenGLRenderer* renderer, jfloatArray points, jint offset, jint count, SkPaint* paint) {
372    jfloat* storage = env->GetFloatArrayElements(points, NULL);
373
374    renderer->drawLines(storage + offset, count, paint);
375
376    env->ReleaseFloatArrayElements(points, storage, 0);
377}
378
379// ----------------------------------------------------------------------------
380// Shaders and color filters
381// ----------------------------------------------------------------------------
382
383static void android_view_GLES20Canvas_resetModifiers(JNIEnv* env, jobject clazz,
384        OpenGLRenderer* renderer) {
385    renderer->resetShader();
386    renderer->resetColorFilter();
387    renderer->resetShadow();
388}
389
390static void android_view_GLES20Canvas_setupShader(JNIEnv* env, jobject clazz,
391        OpenGLRenderer* renderer, SkiaShader* shader) {
392    renderer->setupShader(shader);
393}
394
395static void android_view_GLES20Canvas_setupColorFilter(JNIEnv* env, jobject clazz,
396        OpenGLRenderer* renderer, SkiaColorFilter* filter) {
397    renderer->setupColorFilter(filter);
398}
399
400static void android_view_GLES20Canvas_setupShadow(JNIEnv* env, jobject clazz,
401        OpenGLRenderer* renderer, jfloat radius, jfloat dx, jfloat dy, jint color) {
402    renderer->setupShadow(radius, dx, dy, color);
403}
404
405// ----------------------------------------------------------------------------
406// Text
407// ----------------------------------------------------------------------------
408
409static void renderText(OpenGLRenderer* renderer, const jchar* text, int count,
410        jfloat x, jfloat y, int flags, SkPaint* paint) {
411    const jchar *workText;
412    jchar* buffer = NULL;
413    int32_t workBytes;
414    if (TextLayout::prepareText(paint, text, count, flags, &workText, &workBytes, &buffer)) {
415        renderer->drawText((const char*) workText, workBytes, count, x, y, paint);
416        free(buffer);
417    }
418}
419
420static void renderTextRun(OpenGLRenderer* renderer, const jchar* text,
421        jint start, jint count, jint contextCount, jfloat x, jfloat y,
422        int flags, SkPaint* paint) {
423    uint8_t rtl = flags & 0x1;
424    if (rtl) {
425        SkAutoSTMalloc<80, jchar> buffer(contextCount);
426        jchar* shaped = buffer.get();
427        if (TextLayout::prepareRtlTextRun(text, start, count, contextCount, shaped)) {
428            renderer->drawText((const char*) shaped, count << 1, count, x, y, paint);
429        } else {
430            LOGW("drawTextRun error");
431        }
432    } else {
433        renderer->drawText((const char*) (text + start), count << 1, count, x, y, paint);
434    }
435}
436
437static void android_view_GLES20Canvas_drawTextArray(JNIEnv* env, jobject clazz,
438        OpenGLRenderer* renderer, jcharArray text, jint index, jint count,
439        jfloat x, jfloat y, jint flags, SkPaint* paint) {
440    jchar* textArray = env->GetCharArrayElements(text, NULL);
441    renderText(renderer, textArray + index, count, x, y, flags, paint);
442    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
443}
444
445static void android_view_GLES20Canvas_drawText(JNIEnv* env, jobject clazz,
446        OpenGLRenderer* renderer, jstring text, jint start, jint end,
447        jfloat x, jfloat y, jint flags, SkPaint* paint) {
448    const jchar* textArray = env->GetStringChars(text, NULL);
449    renderText(renderer, textArray + start, end - start, x, y, flags, paint);
450    env->ReleaseStringChars(text, textArray);
451}
452
453static void android_view_GLES20Canvas_drawTextRunArray(JNIEnv* env, jobject clazz,
454        OpenGLRenderer* renderer, jcharArray text, jint index, jint count,
455        jint contextIndex, jint contextCount, jfloat x, jfloat y, jint dirFlags,
456        SkPaint* paint) {
457    jchar* textArray = env->GetCharArrayElements(text, NULL);
458    renderTextRun(renderer, textArray + contextIndex, index - contextIndex,
459            count, contextCount, x, y, dirFlags, paint);
460    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
461 }
462
463static void android_view_GLES20Canvas_drawTextRun(JNIEnv* env, jobject clazz,
464        OpenGLRenderer* renderer, jstring text, jint start, jint end,
465        jint contextStart, int contextEnd, jfloat x, jfloat y, jint dirFlags,
466        SkPaint* paint) {
467    const jchar* textArray = env->GetStringChars(text, NULL);
468    jint count = end - start;
469    jint contextCount = contextEnd - contextStart;
470    renderTextRun(renderer, textArray + contextStart, start - contextStart,
471            count, contextCount, x, y, dirFlags, paint);
472    env->ReleaseStringChars(text, textArray);
473}
474
475// ----------------------------------------------------------------------------
476// Display lists
477// ----------------------------------------------------------------------------
478
479static DisplayList* android_view_GLES20Canvas_getDisplayList(JNIEnv* env,
480        jobject clazz, DisplayListRenderer* renderer) {
481    return renderer->getDisplayList();
482}
483
484static OpenGLRenderer* android_view_GLES20Canvas_getDisplayListRenderer(JNIEnv* env,
485        jobject clazz, DisplayListRenderer* renderer) {
486    if (renderer == NULL) {
487        renderer = new DisplayListRenderer;
488    } else {
489        renderer->reset();
490    }
491    return renderer;
492}
493
494static void android_view_GLES20Canvas_destroyDisplayList(JNIEnv* env,
495        jobject clazz, DisplayList* displayList) {
496    delete displayList;
497}
498
499static bool android_view_GLES20Canvas_drawDisplayList(JNIEnv* env,
500        jobject clazz, OpenGLRenderer* renderer, DisplayList* displayList, jobject dirty) {
501    android::uirenderer::Rect bounds;
502    bool redraw = renderer->drawDisplayList(displayList, bounds);
503    if (redraw && dirty != NULL) {
504        env->CallVoidMethod(dirty, gRectClassInfo.set,
505                int(bounds.left), int(bounds.top), int(bounds.right), int(bounds.bottom));
506    }
507    return redraw;
508}
509
510// ----------------------------------------------------------------------------
511// Layers
512// ----------------------------------------------------------------------------
513
514static void android_view_GLES20Canvas_interrupt(JNIEnv* env, jobject clazz,
515        OpenGLRenderer* renderer) {
516    renderer->interrupt();
517}
518
519static void android_view_GLES20Canvas_resume(JNIEnv* env, jobject clazz,
520        OpenGLRenderer* renderer) {
521    renderer->resume();
522}
523
524static OpenGLRenderer* android_view_GLES20Canvas_createLayerRenderer(JNIEnv* env,
525        jobject clazz, Layer* layer) {
526    if (layer) {
527        return new LayerRenderer(layer);
528    }
529    return NULL;
530}
531
532static Layer* android_view_GLES20Canvas_createLayer(JNIEnv* env, jobject clazz,
533        jint width, jint height, jboolean isOpaque, jintArray layerInfo) {
534    Layer* layer = LayerRenderer::createLayer(width, height, isOpaque);
535
536    if (layer) {
537        jint* storage = env->GetIntArrayElements(layerInfo, NULL);
538        storage[0] = layer->width;
539        storage[1] = layer->height;
540        env->ReleaseIntArrayElements(layerInfo, storage, 0);
541    }
542
543    return layer;
544}
545
546static void android_view_GLES20Canvas_resizeLayer(JNIEnv* env, jobject clazz,
547        Layer* layer, jint width, jint height, jintArray layerInfo) {
548    LayerRenderer::resizeLayer(layer, width, height);
549
550    jint* storage = env->GetIntArrayElements(layerInfo, NULL);
551    storage[0] = layer->width;
552    storage[1] = layer->height;
553    env->ReleaseIntArrayElements(layerInfo, storage, 0);
554}
555
556static void android_view_GLES20Canvas_destroyLayer(JNIEnv* env, jobject clazz, Layer* layer) {
557    LayerRenderer::destroyLayer(layer);
558}
559
560static void android_view_GLES20Canvas_destroyLayerDeferred(JNIEnv* env,
561        jobject clazz, Layer* layer) {
562    LayerRenderer::destroyLayerDeferred(layer);
563}
564
565static void android_view_GLES20Canvas_drawLayer(JNIEnv* env, jobject clazz,
566        OpenGLRenderer* renderer, Layer* layer, jfloat x, jfloat y, SkPaint* paint) {
567    renderer->drawLayer(layer, x, y, paint);
568}
569
570#endif // USE_OPENGL_RENDERER
571
572// ----------------------------------------------------------------------------
573// Common
574// ----------------------------------------------------------------------------
575
576static jboolean android_view_GLES20Canvas_isAvailable(JNIEnv* env, jobject clazz) {
577#ifdef USE_OPENGL_RENDERER
578    return JNI_TRUE;
579#else
580    return JNI_FALSE;
581#endif
582}
583
584// ----------------------------------------------------------------------------
585// JNI Glue
586// ----------------------------------------------------------------------------
587
588const char* const kClassPathName = "android/view/GLES20Canvas";
589
590static JNINativeMethod gMethods[] = {
591    { "nIsAvailable",       "()Z",             (void*) android_view_GLES20Canvas_isAvailable },
592
593#ifdef USE_OPENGL_RENDERER
594    { "nPreserveBackBuffer", "()Z",            (void*) android_view_GLES20Canvas_preserveBackBuffer },
595
596    { "nCreateRenderer",    "()I",             (void*) android_view_GLES20Canvas_createRenderer },
597    { "nDestroyRenderer",   "(I)V",            (void*) android_view_GLES20Canvas_destroyRenderer },
598    { "nSetViewport",       "(III)V",          (void*) android_view_GLES20Canvas_setViewport },
599    { "nPrepare",           "(IZ)V",           (void*) android_view_GLES20Canvas_prepare },
600    { "nPrepareDirty",      "(IIIIIZ)V",       (void*) android_view_GLES20Canvas_prepareDirty },
601    { "nFinish",            "(I)V",            (void*) android_view_GLES20Canvas_finish },
602
603    { "nCallDrawGLFunction", "(II)Z",
604            (void*) android_view_GLES20Canvas_callDrawGLFunction },
605
606    { "nSave",              "(II)I",           (void*) android_view_GLES20Canvas_save },
607    { "nRestore",           "(I)V",            (void*) android_view_GLES20Canvas_restore },
608    { "nRestoreToCount",    "(II)V",           (void*) android_view_GLES20Canvas_restoreToCount },
609    { "nGetSaveCount",      "(I)I",            (void*) android_view_GLES20Canvas_getSaveCount },
610
611    { "nSaveLayer",         "(IFFFFII)I",      (void*) android_view_GLES20Canvas_saveLayer },
612    { "nSaveLayerAlpha",    "(IFFFFII)I",      (void*) android_view_GLES20Canvas_saveLayerAlpha },
613
614    { "nQuickReject",       "(IFFFFI)Z",       (void*) android_view_GLES20Canvas_quickReject },
615    { "nClipRect",          "(IFFFFI)Z",       (void*) android_view_GLES20Canvas_clipRectF },
616    { "nClipRect",          "(IIIIII)Z",       (void*) android_view_GLES20Canvas_clipRect },
617
618    { "nTranslate",         "(IFF)V",          (void*) android_view_GLES20Canvas_translate },
619    { "nRotate",            "(IF)V",           (void*) android_view_GLES20Canvas_rotate },
620    { "nScale",             "(IFF)V",          (void*) android_view_GLES20Canvas_scale },
621    { "nSkew",              "(IFF)V",          (void*) android_view_GLES20Canvas_skew },
622
623    { "nSetMatrix",         "(II)V",           (void*) android_view_GLES20Canvas_setMatrix },
624    { "nGetMatrix",         "(I)I",            (void*) android_view_GLES20Canvas_getNativeMatrix },
625    { "nGetMatrix",         "(II)V",           (void*) android_view_GLES20Canvas_getMatrix },
626    { "nConcatMatrix",      "(II)V",           (void*) android_view_GLES20Canvas_concatMatrix },
627
628    { "nDrawBitmap",        "(II[BFFI)V",      (void*) android_view_GLES20Canvas_drawBitmap },
629    { "nDrawBitmap",        "(II[BFFFFFFFFI)V",(void*) android_view_GLES20Canvas_drawBitmapRect },
630    { "nDrawBitmap",        "(II[BII)V",       (void*) android_view_GLES20Canvas_drawBitmapMatrix },
631
632    { "nDrawBitmapMesh",    "(II[BII[FI[III)V",(void*) android_view_GLES20Canvas_drawBitmapMesh },
633
634    { "nDrawPatch",         "(II[B[BFFFFI)V",  (void*) android_view_GLES20Canvas_drawPatch },
635
636    { "nDrawColor",         "(III)V",          (void*) android_view_GLES20Canvas_drawColor },
637    { "nDrawRect",          "(IFFFFI)V",       (void*) android_view_GLES20Canvas_drawRect },
638    { "nDrawRects",         "(III)V",          (void*) android_view_GLES20Canvas_drawRects },
639    { "nDrawRoundRect",     "(IFFFFFFI)V",     (void*) android_view_GLES20Canvas_drawRoundRect },
640    { "nDrawCircle",        "(IFFFI)V",        (void*) android_view_GLES20Canvas_drawCircle },
641    { "nDrawOval",          "(IFFFFI)V",       (void*) android_view_GLES20Canvas_drawOval },
642    { "nDrawArc",           "(IFFFFFFZI)V",    (void*) android_view_GLES20Canvas_drawArc },
643
644    { "nDrawPath",          "(III)V",          (void*) android_view_GLES20Canvas_drawPath },
645    { "nDrawLines",         "(I[FIII)V",       (void*) android_view_GLES20Canvas_drawLines },
646
647    { "nResetModifiers",    "(I)V",            (void*) android_view_GLES20Canvas_resetModifiers },
648    { "nSetupShader",       "(II)V",           (void*) android_view_GLES20Canvas_setupShader },
649    { "nSetupColorFilter",  "(II)V",           (void*) android_view_GLES20Canvas_setupColorFilter },
650    { "nSetupShadow",       "(IFFFI)V",        (void*) android_view_GLES20Canvas_setupShadow },
651
652    { "nDrawText",          "(I[CIIFFII)V",    (void*) android_view_GLES20Canvas_drawTextArray },
653    { "nDrawText",          "(ILjava/lang/String;IIFFII)V",
654            (void*) android_view_GLES20Canvas_drawText },
655
656    { "nDrawTextRun",       "(I[CIIIIFFII)V",  (void*) android_view_GLES20Canvas_drawTextRunArray },
657    { "nDrawTextRun",       "(ILjava/lang/String;IIIIFFII)V",
658            (void*) android_view_GLES20Canvas_drawTextRun },
659
660    { "nGetClipBounds",     "(ILandroid/graphics/Rect;)Z",
661            (void*) android_view_GLES20Canvas_getClipBounds },
662
663    { "nGetDisplayList",         "(I)I",       (void*) android_view_GLES20Canvas_getDisplayList },
664    { "nDestroyDisplayList",     "(I)V",       (void*) android_view_GLES20Canvas_destroyDisplayList },
665    { "nGetDisplayListRenderer", "(I)I",       (void*) android_view_GLES20Canvas_getDisplayListRenderer },
666    { "nDrawDisplayList",        "(IILandroid/graphics/Rect;)Z",
667                                               (void*) android_view_GLES20Canvas_drawDisplayList },
668
669    { "nInterrupt",              "(I)V",       (void*) android_view_GLES20Canvas_interrupt },
670    { "nResume",                 "(I)V",       (void*) android_view_GLES20Canvas_resume },
671
672    { "nCreateLayerRenderer",    "(I)I",       (void*) android_view_GLES20Canvas_createLayerRenderer },
673    { "nCreateLayer",            "(IIZ[I)I",   (void*) android_view_GLES20Canvas_createLayer },
674    { "nResizeLayer",            "(III[I)V" ,  (void*) android_view_GLES20Canvas_resizeLayer },
675    { "nDestroyLayer",           "(I)V",       (void*) android_view_GLES20Canvas_destroyLayer },
676    { "nDestroyLayerDeferred",   "(I)V",       (void*) android_view_GLES20Canvas_destroyLayerDeferred },
677    { "nDrawLayer",              "(IIFFI)V",   (void*) android_view_GLES20Canvas_drawLayer },
678
679#endif
680};
681
682#ifdef USE_OPENGL_RENDERER
683    #define FIND_CLASS(var, className) \
684            var = env->FindClass(className); \
685            LOG_FATAL_IF(! var, "Unable to find class " className);
686
687    #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor) \
688            var = env->GetMethodID(clazz, methodName, methodDescriptor); \
689            LOG_FATAL_IF(! var, "Unable to find method " methodName);
690#else
691    #define FIND_CLASS(var, className)
692    #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor)
693#endif
694
695int register_android_view_GLES20Canvas(JNIEnv* env) {
696    jclass clazz;
697    FIND_CLASS(clazz, "android/graphics/Rect");
698    GET_METHOD_ID(gRectClassInfo.set, clazz, "set", "(IIII)V");
699
700    return AndroidRuntime::registerNativeMethods(env, kClassPathName, gMethods, NELEM(gMethods));
701}
702
703};
704