android_view_GLES20Canvas.cpp revision 2836c4722a156ec78d7f4101b394885a354f5dd6 
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
23#include "android_view_GraphicBuffer.h"
24
25#include <android_runtime/AndroidRuntime.h>
26#include <android_runtime/android_graphics_SurfaceTexture.h>
27
28#include <androidfw/ResourceTypes.h>
29
30#include <gui/GLConsumer.h>
31
32#include <private/hwui/DrawGlInfo.h>
33
34#include <cutils/properties.h>
35
36#include <SkBitmap.h>
37#include <SkCanvas.h>
38#include <SkMatrix.h>
39#include <SkPaint.h>
40#include <SkRegion.h>
41#include <SkScalerContext.h>
42#include <SkTemplates.h>
43#include <SkXfermode.h>
44
45#include <DisplayListRenderer.h>
46#include <LayerRenderer.h>
47#include <OpenGLRenderer.h>
48#include <SkiaShader.h>
49#include <Stencil.h>
50#include <Rect.h>
51#include <RenderNode.h>
52#include <CanvasProperty.h>
53
54#ifdef USE_MINIKIN
55#include <minikin/Layout.h>
56#include "MinikinSkia.h"
57#include "MinikinUtils.h"
58#endif
59
60#include <TextLayout.h>
61#include <TextLayoutCache.h>
62
63namespace android {
64
65using namespace uirenderer;
66
67/**
68 * Note: OpenGLRenderer JNI layer is generated and compiled only on supported
69 *       devices. This means all the logic must be compiled only when the
70 *       preprocessor variable USE_OPENGL_RENDERER is defined.
71 */
72#ifdef USE_OPENGL_RENDERER
73
74// ----------------------------------------------------------------------------
75// Defines
76// ----------------------------------------------------------------------------
77
78// Debug
79#define DEBUG_RENDERER 0
80
81// Debug
82#if DEBUG_RENDERER
83    #define RENDERER_LOGD(...) ALOGD(__VA_ARGS__)
84#else
85    #define RENDERER_LOGD(...)
86#endif
87
88#define MODIFIER_SHADER 2
89
90// ----------------------------------------------------------------------------
91
92static struct {
93    jmethodID set;
94} gRectClassInfo;
95
96// ----------------------------------------------------------------------------
97// Caching
98// ----------------------------------------------------------------------------
99
100static void android_view_GLES20Canvas_flushCaches(JNIEnv* env, jobject clazz,
101        jint mode) {
102    if (Caches::hasInstance()) {
103        Caches::getInstance().flush(static_cast<Caches::FlushMode>(mode));
104    }
105}
106
107static jboolean android_view_GLES20Canvas_initCaches(JNIEnv* env, jobject clazz) {
108    if (Caches::hasInstance()) {
109        return Caches::getInstance().init() ? JNI_TRUE : JNI_FALSE;
110    }
111    return JNI_FALSE;
112}
113
114static void android_view_GLES20Canvas_terminateCaches(JNIEnv* env, jobject clazz) {
115    if (Caches::hasInstance()) {
116        Caches::getInstance().terminate();
117    }
118}
119
120// ----------------------------------------------------------------------------
121// Caching
122// ----------------------------------------------------------------------------
123
124static void android_view_GLES20Canvas_initAtlas(JNIEnv* env, jobject clazz,
125        jobject graphicBuffer, jlongArray atlasMapArray, jint count) {
126
127    sp<GraphicBuffer> buffer = graphicBufferForJavaObject(env, graphicBuffer);
128    jlong* jAtlasMap = env->GetLongArrayElements(atlasMapArray, NULL);
129    Caches::getInstance().assetAtlas.init(buffer, jAtlasMap, count);
130    env->ReleaseLongArrayElements(atlasMapArray, jAtlasMap, 0);
131}
132
133// ----------------------------------------------------------------------------
134// Constructors
135// ----------------------------------------------------------------------------
136
137static jlong android_view_GLES20Canvas_createRenderer(JNIEnv* env, jobject clazz) {
138    RENDERER_LOGD("Create OpenGLRenderer");
139    OpenGLRenderer* renderer = new OpenGLRenderer();
140    renderer->initProperties();
141    return reinterpret_cast<jlong>(renderer);
142}
143
144static void android_view_GLES20Canvas_destroyRenderer(JNIEnv* env, jobject clazz,
145        jlong rendererPtr) {
146    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
147    RENDERER_LOGD("Destroy OpenGLRenderer");
148    delete renderer;
149}
150
151// ----------------------------------------------------------------------------
152// Setup
153// ----------------------------------------------------------------------------
154
155static void android_view_GLES20Canvas_setViewport(JNIEnv* env, jobject clazz,
156        jlong rendererPtr, jint width, jint height) {
157    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
158    renderer->setViewport(width, height);
159}
160
161static int android_view_GLES20Canvas_prepare(JNIEnv* env, jobject clazz,
162        jlong rendererPtr, jboolean opaque) {
163    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
164    return renderer->prepare(opaque);
165}
166
167static int android_view_GLES20Canvas_prepareDirty(JNIEnv* env, jobject clazz,
168        jlong rendererPtr, jint left, jint top, jint right, jint bottom,
169        jboolean opaque) {
170    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
171    return renderer->prepareDirty(left, top, right, bottom, opaque);
172}
173
174static void android_view_GLES20Canvas_finish(JNIEnv* env, jobject clazz,
175        jlong rendererPtr) {
176    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
177    renderer->finish();
178}
179
180static jint android_view_GLES20Canvas_getStencilSize(JNIEnv* env, jobject clazz) {
181    return Stencil::getStencilSize();
182}
183
184static void android_view_GLES20Canvas_setProperty(JNIEnv* env,
185        jobject clazz, jstring name, jstring value) {
186    if (!Caches::hasInstance()) {
187        ALOGW("can't set property, no Caches instance");
188        return;
189    }
190
191    if (name == NULL || value == NULL) {
192        ALOGW("can't set prop, null passed");
193    }
194
195    const char* nameCharArray = env->GetStringUTFChars(name, NULL);
196    const char* valueCharArray = env->GetStringUTFChars(value, NULL);
197    Caches::getInstance().setTempProperty(nameCharArray, valueCharArray);
198    env->ReleaseStringUTFChars(name, nameCharArray);
199    env->ReleaseStringUTFChars(name, valueCharArray);
200}
201
202// ----------------------------------------------------------------------------
203// Functor
204// ----------------------------------------------------------------------------
205
206static jint android_view_GLES20Canvas_callDrawGLFunction(JNIEnv* env, jobject clazz,
207        jlong rendererPtr, jlong functorPtr) {
208    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
209    Functor* functor = reinterpret_cast<Functor*>(functorPtr);
210    android::uirenderer::Rect dirty;
211    return renderer->callDrawGLFunction(functor, dirty);
212}
213
214// ----------------------------------------------------------------------------
215// Misc
216// ----------------------------------------------------------------------------
217
218static jint android_view_GLES20Canvas_getMaxTextureWidth(JNIEnv* env, jobject clazz) {
219    return Caches::getInstance().maxTextureSize;
220}
221
222static jint android_view_GLES20Canvas_getMaxTextureHeight(JNIEnv* env, jobject clazz) {
223    return Caches::getInstance().maxTextureSize;
224}
225
226// ----------------------------------------------------------------------------
227// State
228// ----------------------------------------------------------------------------
229
230static jint android_view_GLES20Canvas_save(JNIEnv* env, jobject clazz, jlong rendererPtr,
231        jint flags) {
232    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
233    return renderer->save(flags);
234}
235
236static jint android_view_GLES20Canvas_getSaveCount(JNIEnv* env, jobject clazz,
237        jlong rendererPtr) {
238    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
239    return renderer->getSaveCount();
240}
241
242static void android_view_GLES20Canvas_restore(JNIEnv* env, jobject clazz,
243        jlong rendererPtr) {
244    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
245    renderer->restore();
246}
247
248static void android_view_GLES20Canvas_restoreToCount(JNIEnv* env, jobject clazz,
249        jlong rendererPtr, jint saveCount) {
250    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
251    renderer->restoreToCount(saveCount);
252}
253
254// ----------------------------------------------------------------------------
255// Layers
256// ----------------------------------------------------------------------------
257
258static jint android_view_GLES20Canvas_saveLayer(JNIEnv* env, jobject clazz,
259        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom,
260        jlong paintPtr, jint saveFlags) {
261    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
262    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
263    return renderer->saveLayer(left, top, right, bottom, paint, saveFlags);
264}
265
266static jint android_view_GLES20Canvas_saveLayerClip(JNIEnv* env, jobject clazz,
267        jlong rendererPtr, jlong paintPtr, jint saveFlags) {
268    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
269    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
270    const android::uirenderer::Rect& bounds(renderer->getLocalClipBounds());
271    return renderer->saveLayer(bounds.left, bounds.top, bounds.right, bounds.bottom,
272            paint, saveFlags);
273}
274
275static jint android_view_GLES20Canvas_saveLayerAlpha(JNIEnv* env, jobject clazz,
276        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom,
277        jint alpha, jint saveFlags) {
278    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
279    return renderer->saveLayerAlpha(left, top, right, bottom, alpha, saveFlags);
280}
281
282static jint android_view_GLES20Canvas_saveLayerAlphaClip(JNIEnv* env, jobject clazz,
283        jlong rendererPtr, jint alpha, jint saveFlags) {
284    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
285    const android::uirenderer::Rect& bounds(renderer->getLocalClipBounds());
286    return renderer->saveLayerAlpha(bounds.left, bounds.top, bounds.right, bounds.bottom,
287            alpha, saveFlags);
288}
289
290// ----------------------------------------------------------------------------
291// Clipping
292// ----------------------------------------------------------------------------
293
294static jboolean android_view_GLES20Canvas_quickReject(JNIEnv* env, jobject clazz,
295        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom) {
296    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
297    const bool result = renderer->quickRejectConservative(left, top, right, bottom);
298    return result ? JNI_TRUE : JNI_FALSE;
299}
300
301static jboolean android_view_GLES20Canvas_clipRectF(JNIEnv* env, jobject clazz,
302        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom,
303        jint op) {
304    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
305    const bool result = renderer->clipRect(left, top, right, bottom,
306                                           static_cast<SkRegion::Op>(op));
307    return result ? JNI_TRUE : JNI_FALSE;
308}
309
310static jboolean android_view_GLES20Canvas_clipRect(JNIEnv* env, jobject clazz,
311        jlong rendererPtr, jint left, jint top, jint right, jint bottom,
312        jint op) {
313    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
314    const bool result = renderer->clipRect(float(left), float(top), float(right),
315                                           float(bottom),
316                                           static_cast<SkRegion::Op>(op));
317    return result ? JNI_TRUE : JNI_FALSE;
318}
319
320static jboolean android_view_GLES20Canvas_clipPath(JNIEnv* env, jobject clazz,
321        jlong rendererPtr, jlong pathPtr, jint op) {
322    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
323    SkPath* path = reinterpret_cast<SkPath*>(pathPtr);
324    const bool result = renderer->clipPath(path, static_cast<SkRegion::Op>(op));
325    return result ? JNI_TRUE : JNI_FALSE;
326}
327
328static jboolean android_view_GLES20Canvas_clipRegion(JNIEnv* env, jobject clazz,
329        jlong rendererPtr, jlong regionPtr, jint op) {
330    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
331    SkRegion* region = reinterpret_cast<SkRegion*>(regionPtr);
332    const bool result = renderer->clipRegion(region, static_cast<SkRegion::Op>(op));
333    return result ? JNI_TRUE : JNI_FALSE;
334}
335
336static jboolean android_view_GLES20Canvas_getClipBounds(JNIEnv* env, jobject clazz,
337        jlong rendererPtr, jobject rect) {
338    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
339    const android::uirenderer::Rect& bounds(renderer->getLocalClipBounds());
340
341    env->CallVoidMethod(rect, gRectClassInfo.set,
342            int(bounds.left), int(bounds.top), int(bounds.right), int(bounds.bottom));
343
344    return !bounds.isEmpty() ? JNI_TRUE : JNI_FALSE;
345}
346
347// ----------------------------------------------------------------------------
348// Transforms
349// ----------------------------------------------------------------------------
350
351static void android_view_GLES20Canvas_translate(JNIEnv* env, jobject clazz,
352        jlong rendererPtr, jfloat dx, jfloat dy) {
353    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
354    renderer->translate(dx, dy);
355}
356
357static void android_view_GLES20Canvas_rotate(JNIEnv* env, jobject clazz,
358        jlong rendererPtr, jfloat degrees) {
359    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
360    renderer->rotate(degrees);
361}
362
363static void android_view_GLES20Canvas_scale(JNIEnv* env, jobject clazz,
364        jlong rendererPtr, jfloat sx, jfloat sy) {
365    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
366    renderer->scale(sx, sy);
367}
368
369static void android_view_GLES20Canvas_skew(JNIEnv* env, jobject clazz,
370        jlong rendererPtr, jfloat sx, jfloat sy) {
371    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
372    renderer->skew(sx, sy);
373}
374
375static void android_view_GLES20Canvas_setMatrix(JNIEnv* env, jobject clazz,
376        jlong rendererPtr, jlong matrixPtr) {
377    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
378    SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixPtr);
379    renderer->setMatrix(matrix);
380}
381
382static void android_view_GLES20Canvas_getMatrix(JNIEnv* env, jobject clazz,
383        jlong rendererPtr, jlong matrixPtr) {
384    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
385    SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixPtr);
386    renderer->getMatrix(matrix);
387}
388
389static void android_view_GLES20Canvas_concatMatrix(JNIEnv* env, jobject clazz,
390        jlong rendererPtr, jlong matrixPtr) {
391    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
392    SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixPtr);
393    renderer->concatMatrix(matrix);
394}
395
396// ----------------------------------------------------------------------------
397// Drawing
398// ----------------------------------------------------------------------------
399
400static void android_view_GLES20Canvas_drawBitmap(JNIEnv* env, jobject clazz,
401        jlong rendererPtr, jlong bitmapPtr, jbyteArray buffer,
402        jfloat left, jfloat top, jlong paintPtr) {
403    SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapPtr);
404    // This object allows the renderer to allocate a global JNI ref to the buffer object.
405    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
406
407    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
408    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
409    renderer->drawBitmap(bitmap, left, top, paint);
410}
411
412static void android_view_GLES20Canvas_drawBitmapRect(JNIEnv* env, jobject clazz,
413        jlong rendererPtr, jlong bitmapPtr, jbyteArray buffer,
414        float srcLeft, float srcTop, float srcRight, float srcBottom,
415        float dstLeft, float dstTop, float dstRight, float dstBottom, jlong paintPtr) {
416    SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapPtr);
417    // This object allows the renderer to allocate a global JNI ref to the buffer object.
418    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
419
420    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
421    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
422    renderer->drawBitmap(bitmap, srcLeft, srcTop, srcRight, srcBottom,
423            dstLeft, dstTop, dstRight, dstBottom, paint);
424}
425
426static void android_view_GLES20Canvas_drawBitmapMatrix(JNIEnv* env, jobject clazz,
427        jlong rendererPtr, jlong bitmapPtr, jbyteArray buffer,
428        jlong matrixPtr, jlong paintPtr) {
429    SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapPtr);
430    // This object allows the renderer to allocate a global JNI ref to the buffer object.
431    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
432
433    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
434    SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixPtr);
435    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
436    renderer->drawBitmap(bitmap, matrix, paint);
437}
438
439static void android_view_GLES20Canvas_drawBitmapData(JNIEnv* env, jobject clazz,
440        jlong rendererPtr, jintArray colors, jint offset, jint stride,
441        jfloat left, jfloat top, jint width, jint height, jboolean hasAlpha, jlong paintPtr) {
442    SkBitmap* bitmap = new SkBitmap;
443    bitmap->setConfig(hasAlpha ? SkBitmap::kARGB_8888_Config : SkBitmap::kRGB_565_Config,
444            width, height);
445
446    if (!bitmap->allocPixels()) {
447        delete bitmap;
448        return;
449    }
450
451    if (!GraphicsJNI::SetPixels(env, colors, offset, stride, 0, 0, width, height, *bitmap, true)) {
452        delete bitmap;
453        return;
454    }
455
456    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
457    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
458    renderer->drawBitmapData(bitmap, left, top, paint);
459
460    // If the renderer is a deferred renderer it will own the bitmap
461    if (!renderer->isRecording()) {
462        delete bitmap;
463    }
464}
465
466static void android_view_GLES20Canvas_drawBitmapMesh(JNIEnv* env, jobject clazz,
467        jlong rendererPtr, jlong bitmapPtr, jbyteArray buffer,
468        jint meshWidth, jint meshHeight, jfloatArray vertices, jint offset, jintArray colors,
469        jint colorOffset, jlong paintPtr) {
470    SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapPtr);
471    // This object allows the renderer to allocate a global JNI ref to the buffer object.
472    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
473
474    jfloat* verticesArray = vertices ? env->GetFloatArrayElements(vertices, NULL) + offset : NULL;
475    jint* colorsArray = colors ? env->GetIntArrayElements(colors, NULL) + colorOffset : NULL;
476
477    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
478    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
479    renderer->drawBitmapMesh(bitmap, meshWidth, meshHeight, verticesArray, colorsArray, paint);
480
481    if (vertices) env->ReleaseFloatArrayElements(vertices, verticesArray, 0);
482    if (colors) env->ReleaseIntArrayElements(colors, colorsArray, 0);
483}
484
485static void android_view_GLES20Canvas_drawPatch(JNIEnv* env, jobject clazz,
486        jlong rendererPtr, jlong bitmapPtr, jbyteArray buffer, jlong patchPtr,
487        float left, float top, float right, float bottom, jlong paintPtr) {
488    SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapPtr);
489    // This object allows the renderer to allocate a global JNI ref to the buffer object.
490    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
491
492    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
493    Res_png_9patch* patch = reinterpret_cast<Res_png_9patch*>(patchPtr);
494    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
495    renderer->drawPatch(bitmap, patch, left, top, right, bottom, paint);
496}
497
498static void android_view_GLES20Canvas_drawColor(JNIEnv* env, jobject clazz,
499        jlong rendererPtr, jint color, jint mode) {
500    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
501    renderer->drawColor(color, static_cast<SkXfermode::Mode>(mode));
502}
503
504static void android_view_GLES20Canvas_drawRect(JNIEnv* env, jobject clazz,
505        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom,
506        jlong paintPtr) {
507    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
508    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
509    renderer->drawRect(left, top, right, bottom, paint);
510}
511
512static void android_view_GLES20Canvas_drawRoundRect(JNIEnv* env, jobject clazz,
513        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom,
514        jfloat rx, jfloat ry, jlong paintPtr) {
515    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
516    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
517    renderer->drawRoundRect(left, top, right, bottom, rx, ry, paint);
518}
519
520static void android_view_GLES20Canvas_drawCircle(JNIEnv* env, jobject clazz,
521        jlong rendererPtr, jfloat x, jfloat y, jfloat radius, jlong paintPtr) {
522    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
523    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
524    renderer->drawCircle(x, y, radius, paint);
525}
526
527static void android_view_GLES20Canvas_drawCircleProps(JNIEnv* env, jobject clazz,
528        jlong rendererPtr, jlong xPropPtr, jlong yPropPtr, jlong radiusPropPtr, jlong paintPropPtr) {
529    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
530    CanvasPropertyPrimitive* xProp = reinterpret_cast<CanvasPropertyPrimitive*>(xPropPtr);
531    CanvasPropertyPrimitive* yProp = reinterpret_cast<CanvasPropertyPrimitive*>(yPropPtr);
532    CanvasPropertyPrimitive* radiusProp = reinterpret_cast<CanvasPropertyPrimitive*>(radiusPropPtr);
533    CanvasPropertyPaint* paintProp = reinterpret_cast<CanvasPropertyPaint*>(paintPropPtr);
534    renderer->drawCircle(xProp, yProp, radiusProp, paintProp);
535}
536
537static void android_view_GLES20Canvas_drawOval(JNIEnv* env, jobject clazz,
538        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom,
539        jlong paintPtr) {
540    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
541    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
542    renderer->drawOval(left, top, right, bottom, paint);
543}
544
545static void android_view_GLES20Canvas_drawArc(JNIEnv* env, jobject clazz,
546        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom,
547        jfloat startAngle, jfloat sweepAngle, jboolean useCenter, jlong paintPtr) {
548    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
549    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
550    renderer->drawArc(left, top, right, bottom, startAngle, sweepAngle, useCenter, paint);
551}
552
553static void android_view_GLES20Canvas_drawRegionAsRects(JNIEnv* env, jobject clazz,
554        jlong rendererPtr, jlong regionPtr, jlong paintPtr) {
555    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
556    SkRegion* region = reinterpret_cast<SkRegion*>(regionPtr);
557    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
558    if (paint->getStyle() != SkPaint::kFill_Style ||
559            (paint->isAntiAlias() && !renderer->isCurrentTransformSimple())) {
560        SkRegion::Iterator it(*region);
561        while (!it.done()) {
562            const SkIRect& r = it.rect();
563            renderer->drawRect(r.fLeft, r.fTop, r.fRight, r.fBottom, paint);
564            it.next();
565        }
566    } else {
567        int count = 0;
568        Vector<float> rects;
569        SkRegion::Iterator it(*region);
570        while (!it.done()) {
571            const SkIRect& r = it.rect();
572            rects.push(r.fLeft);
573            rects.push(r.fTop);
574            rects.push(r.fRight);
575            rects.push(r.fBottom);
576            count += 4;
577            it.next();
578        }
579        renderer->drawRects(rects.array(), count, paint);
580    }
581}
582
583static void android_view_GLES20Canvas_drawRects(JNIEnv* env, jobject clazz,
584        jlong rendererPtr, jfloatArray rects, jint count, jlong paintPtr) {
585    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
586    jfloat* storage = env->GetFloatArrayElements(rects, NULL);
587    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
588    renderer->drawRects(storage, count, paint);
589    env->ReleaseFloatArrayElements(rects, storage, 0);
590}
591
592static void android_view_GLES20Canvas_drawPoints(JNIEnv* env, jobject clazz,
593        jlong rendererPtr, jfloatArray points, jint offset, jint count, jlong paintPtr) {
594    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
595    jfloat* storage = env->GetFloatArrayElements(points, NULL);
596    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
597    renderer->drawPoints(storage + offset, count, paint);
598    env->ReleaseFloatArrayElements(points, storage, 0);
599}
600
601static void android_view_GLES20Canvas_drawPath(JNIEnv* env, jobject clazz,
602        jlong rendererPtr, jlong pathPtr, jlong paintPtr) {
603    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
604    SkPath* path = reinterpret_cast<SkPath*>(pathPtr);
605    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
606    renderer->drawPath(path, paint);
607}
608
609static void android_view_GLES20Canvas_drawLines(JNIEnv* env, jobject clazz,
610        jlong rendererPtr, jfloatArray points, jint offset, jint count, jlong paintPtr) {
611    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
612    jfloat* storage = env->GetFloatArrayElements(points, NULL);
613    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
614    renderer->drawLines(storage + offset, count, paint);
615    env->ReleaseFloatArrayElements(points, storage, 0);
616}
617
618// ----------------------------------------------------------------------------
619// Shaders and color filters
620// ----------------------------------------------------------------------------
621
622static void android_view_GLES20Canvas_resetModifiers(JNIEnv* env, jobject clazz,
623        jlong rendererPtr, jint modifiers) {
624    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
625    if (modifiers & MODIFIER_SHADER) renderer->resetShader();
626}
627
628static void android_view_GLES20Canvas_setupShader(JNIEnv* env, jobject clazz,
629        jlong rendererPtr, jlong shaderPtr) {
630    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
631    SkiaShader* shader = reinterpret_cast<SkiaShader*>(shaderPtr);
632    renderer->setupShader(shader);
633}
634
635
636// ----------------------------------------------------------------------------
637// Draw filters
638// ----------------------------------------------------------------------------
639
640static void android_view_GLES20Canvas_setupPaintFilter(JNIEnv* env, jobject clazz,
641        jlong rendererPtr, jint clearBits, jint setBits) {
642    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
643    renderer->setupPaintFilter(clearBits, setBits);
644}
645
646static void android_view_GLES20Canvas_resetPaintFilter(JNIEnv* env, jobject clazz,
647        jlong rendererPtr) {
648    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
649    renderer->resetPaintFilter();
650}
651
652// ----------------------------------------------------------------------------
653// Text
654// ----------------------------------------------------------------------------
655
656static float xOffsetForTextAlign(SkPaint* paint, float totalAdvance) {
657    switch (paint->getTextAlign()) {
658        case SkPaint::kCenter_Align:
659            return -totalAdvance / 2.0f;
660            break;
661        case SkPaint::kRight_Align:
662            return -totalAdvance;
663            break;
664        default:
665            break;
666    }
667    return 0;
668}
669
670#ifdef USE_MINIKIN
671static void renderTextLayout(OpenGLRenderer* renderer, Layout* layout,
672    jfloat x, jfloat y, SkPaint* paint) {
673    size_t nGlyphs = layout->nGlyphs();
674    float* pos = new float[nGlyphs * 2];
675    uint16_t* glyphs = new uint16_t[nGlyphs];
676    SkTypeface* lastFace = 0;
677    SkTypeface* skFace = 0;
678    size_t start = 0;
679    MinikinRect b;
680    layout->getBounds(&b);
681    android::uirenderer::Rect bounds(b.mLeft, b.mTop, b.mRight, b.mBottom);
682    bounds.translate(x, y);
683    float totalAdvance = layout->getAdvance();
684
685    for (size_t i = 0; i < nGlyphs; i++) {
686        MinikinFontSkia* mfs = static_cast<MinikinFontSkia *>(layout->getFont(i));
687        skFace = mfs->GetSkTypeface();
688        glyphs[i] = layout->getGlyphId(i);
689        pos[2 * i] = SkFloatToScalar(layout->getX(i));
690        pos[2 * i + 1] = SkFloatToScalar(layout->getY(i));
691        if (i > 0 && skFace != lastFace) {
692            paint->setTypeface(lastFace);
693            size_t glyphsCount = i - start;
694            int bytesCount = glyphsCount * sizeof(jchar);
695            renderer->drawText((const char*) (glyphs + start), bytesCount, glyphsCount,
696                x, y, pos + 2 * start, paint, totalAdvance, bounds);
697            start = i;
698        }
699        lastFace = skFace;
700    }
701    if (skFace != NULL) {
702        paint->setTypeface(skFace);
703        size_t glyphsCount = nGlyphs - start;
704        int bytesCount = glyphsCount * sizeof(jchar);
705        renderer->drawText((const char*) (glyphs + start), bytesCount, glyphsCount,
706            x, y, pos + 2 * start, paint, totalAdvance, bounds);
707    }
708    delete[] glyphs;
709    delete[] pos;
710}
711#endif
712
713static void renderText(OpenGLRenderer* renderer, const jchar* text, int count,
714        jfloat x, jfloat y, int flags, SkPaint* paint, TypefaceImpl* typeface) {
715#ifdef USE_MINIKIN
716    Layout layout;
717    MinikinUtils::SetLayoutProperties(&layout, paint, typeface);
718    layout.doLayout(text, count);
719    x += xOffsetForTextAlign(paint, layout.getAdvance());
720    renderTextLayout(renderer, &layout, x, y, paint);
721#else
722    sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint,
723            text, 0, count, count, flags);
724    if (value == NULL) {
725        return;
726    }
727    const jchar* glyphs = value->getGlyphs();
728    size_t glyphsCount = value->getGlyphsCount();
729    jfloat totalAdvance = value->getTotalAdvance();
730    x += xOffsetForTextAlign(paint, totalAdvance);
731    const float* positions = value->getPos();
732    int bytesCount = glyphsCount * sizeof(jchar);
733    const SkRect& r = value->getBounds();
734    android::uirenderer::Rect bounds(r.fLeft, r.fTop, r.fRight, r.fBottom);
735    bounds.translate(x, y);
736
737    renderer->drawText((const char*) glyphs, bytesCount, glyphsCount,
738            x, y, positions, paint, totalAdvance, bounds);
739#endif
740}
741
742static void renderTextOnPath(OpenGLRenderer* renderer, const jchar* text, int count,
743        SkPath* path, jfloat hOffset, jfloat vOffset, int flags, SkPaint* paint) {
744    sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint,
745            text, 0, count, count, flags);
746    if (value == NULL) {
747        return;
748    }
749    const jchar* glyphs = value->getGlyphs();
750    size_t glyphsCount = value->getGlyphsCount();
751    int bytesCount = glyphsCount * sizeof(jchar);
752    renderer->drawTextOnPath((const char*) glyphs, bytesCount, glyphsCount, path,
753            hOffset, vOffset, paint);
754}
755
756static void renderTextRun(OpenGLRenderer* renderer, const jchar* text,
757        jint start, jint count, jint contextCount, jfloat x, jfloat y,
758        int flags, SkPaint* paint, TypefaceImpl* typeface) {
759#ifdef USE_MINIKIN
760    Layout layout;
761    MinikinUtils::SetLayoutProperties(&layout, paint, typeface);
762    layout.doLayout(text + start, count);
763    x += xOffsetForTextAlign(paint, layout.getAdvance());
764    renderTextLayout(renderer, &layout, x, y, paint);
765#else
766    sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint,
767            text, start, count, contextCount, flags);
768    if (value == NULL) {
769        return;
770    }
771    const jchar* glyphs = value->getGlyphs();
772    size_t glyphsCount = value->getGlyphsCount();
773    jfloat totalAdvance = value->getTotalAdvance();
774    x += xOffsetForTextAlign(paint, totalAdvance);
775    const float* positions = value->getPos();
776    int bytesCount = glyphsCount * sizeof(jchar);
777    const SkRect& r = value->getBounds();
778    android::uirenderer::Rect bounds(r.fLeft, r.fTop, r.fRight, r.fBottom);
779    bounds.translate(x, y);
780
781    renderer->drawText((const char*) glyphs, bytesCount, glyphsCount,
782            x, y, positions, paint, totalAdvance, bounds);
783#endif
784}
785
786static void android_view_GLES20Canvas_drawTextArray(JNIEnv* env, jobject clazz,
787        jlong rendererPtr, jcharArray text, jint index, jint count,
788        jfloat x, jfloat y, jint flags, jlong paintPtr, jlong typefacePtr) {
789    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
790    jchar* textArray = env->GetCharArrayElements(text, NULL);
791    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
792    TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefacePtr);
793
794    renderText(renderer, textArray + index, count, x, y, flags, paint, typeface);
795    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
796}
797
798static void android_view_GLES20Canvas_drawText(JNIEnv* env, jobject clazz,
799        jlong rendererPtr, jstring text, jint start, jint end,
800        jfloat x, jfloat y, jint flags, jlong paintPtr, jlong typefacePtr) {
801    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
802    const jchar* textArray = env->GetStringChars(text, NULL);
803    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
804    TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefacePtr);
805
806    renderText(renderer, textArray + start, end - start, x, y, flags, paint, typeface);
807    env->ReleaseStringChars(text, textArray);
808}
809
810static void android_view_GLES20Canvas_drawTextArrayOnPath(JNIEnv* env, jobject clazz,
811        jlong rendererPtr, jcharArray text, jint index, jint count,
812        jlong pathPtr, jfloat hOffset, jfloat vOffset, jint flags, jlong paintPtr) {
813    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
814    jchar* textArray = env->GetCharArrayElements(text, NULL);
815    SkPath* path = reinterpret_cast<SkPath*>(pathPtr);
816    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
817
818    renderTextOnPath(renderer, textArray + index, count, path,
819            hOffset, vOffset, flags, paint);
820    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
821}
822
823static void android_view_GLES20Canvas_drawTextOnPath(JNIEnv* env, jobject clazz,
824        jlong rendererPtr, jstring text, jint start, jint end,
825        jlong pathPtr, jfloat hOffset, jfloat vOffset, jint flags, jlong paintPtr) {
826    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
827    const jchar* textArray = env->GetStringChars(text, NULL);
828    SkPath* path = reinterpret_cast<SkPath*>(pathPtr);
829    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
830
831    renderTextOnPath(renderer, textArray + start, end - start, path,
832            hOffset, vOffset, flags, paint);
833    env->ReleaseStringChars(text, textArray);
834}
835
836static void android_view_GLES20Canvas_drawTextRunArray(JNIEnv* env, jobject clazz,
837        jlong rendererPtr, jcharArray text, jint index, jint count,
838        jint contextIndex, jint contextCount, jfloat x, jfloat y, jint dirFlags,
839        jlong paintPtr, jlong typefacePtr) {
840    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
841    jchar* textArray = env->GetCharArrayElements(text, NULL);
842    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
843    TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefacePtr);
844
845    renderTextRun(renderer, textArray + contextIndex, index - contextIndex,
846            count, contextCount, x, y, dirFlags, paint, typeface);
847    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
848 }
849
850static void android_view_GLES20Canvas_drawTextRun(JNIEnv* env, jobject clazz,
851        jlong rendererPtr, jstring text, jint start, jint end,
852        jint contextStart, int contextEnd, jfloat x, jfloat y, jint dirFlags,
853        jlong paintPtr, jlong typefacePtr) {
854    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
855    const jchar* textArray = env->GetStringChars(text, NULL);
856    jint count = end - start;
857    jint contextCount = contextEnd - contextStart;
858    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
859    TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefacePtr);
860
861    renderTextRun(renderer, textArray + contextStart, start - contextStart,
862            count, contextCount, x, y, dirFlags, paint, typeface);
863    env->ReleaseStringChars(text, textArray);
864}
865
866static void renderPosText(OpenGLRenderer* renderer, const jchar* text, int count,
867        const jfloat* positions, jint dirFlags, SkPaint* paint) {
868    sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint,
869            text, 0, count, count, dirFlags);
870    if (value == NULL) {
871        return;
872    }
873    const jchar* glyphs = value->getGlyphs();
874    size_t glyphsCount = value->getGlyphsCount();
875    if (count < int(glyphsCount)) glyphsCount = count;
876    int bytesCount = glyphsCount * sizeof(jchar);
877
878    renderer->drawPosText((const char*) glyphs, bytesCount, glyphsCount, positions, paint);
879}
880
881static void android_view_GLES20Canvas_drawPosTextArray(JNIEnv* env, jobject clazz,
882        jlong rendererPtr, jcharArray text, jint index, jint count,
883        jfloatArray pos, jlong paintPtr) {
884    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
885    jchar* textArray = env->GetCharArrayElements(text, NULL);
886    jfloat* positions = env->GetFloatArrayElements(pos, NULL);
887    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
888
889    renderPosText(renderer, textArray + index, count, positions, kBidi_LTR, paint);
890
891    env->ReleaseFloatArrayElements(pos, positions, JNI_ABORT);
892    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
893}
894
895static void android_view_GLES20Canvas_drawPosText(JNIEnv* env, jobject clazz,
896        jlong rendererPtr, jstring text, jint start, jint end,
897        jfloatArray pos, jlong paintPtr) {
898    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
899    const jchar* textArray = env->GetStringChars(text, NULL);
900    jfloat* positions = env->GetFloatArrayElements(pos, NULL);
901    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
902
903    renderPosText(renderer, textArray + start, end - start, positions, kBidi_LTR, paint);
904
905    env->ReleaseFloatArrayElements(pos, positions, JNI_ABORT);
906    env->ReleaseStringChars(text, textArray);
907}
908
909// ----------------------------------------------------------------------------
910// Display lists
911// ----------------------------------------------------------------------------
912
913static jlong android_view_GLES20Canvas_finishRecording(JNIEnv* env,
914        jobject clazz, jlong rendererPtr) {
915    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
916    return reinterpret_cast<jlong>(renderer->finishRecording());
917}
918
919static jlong android_view_GLES20Canvas_createDisplayListRenderer(JNIEnv* env, jobject clazz) {
920    return reinterpret_cast<jlong>(new DisplayListRenderer);
921}
922
923static jint android_view_GLES20Canvas_drawDisplayList(JNIEnv* env,
924        jobject clazz, jlong rendererPtr, jlong displayListPtr,
925        jobject dirty, jint flags) {
926    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
927    RenderNode* displayList = reinterpret_cast<RenderNode*>(displayListPtr);
928    android::uirenderer::Rect bounds;
929    status_t status = renderer->drawDisplayList(displayList, bounds, flags);
930    if (status != DrawGlInfo::kStatusDone && dirty != NULL) {
931        env->CallVoidMethod(dirty, gRectClassInfo.set,
932                int(bounds.left), int(bounds.top), int(bounds.right), int(bounds.bottom));
933    }
934    return status;
935}
936
937// ----------------------------------------------------------------------------
938// Layers
939// ----------------------------------------------------------------------------
940
941static void android_view_GLES20Canvas_drawLayer(JNIEnv* env, jobject clazz,
942        jlong rendererPtr, jlong layerPtr, jfloat x, jfloat y) {
943    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
944    Layer* layer = reinterpret_cast<Layer*>(layerPtr);
945    renderer->drawLayer(layer, x, y);
946}
947
948static jboolean android_view_GLES20Canvas_copyLayer(JNIEnv* env, jobject clazz,
949        jlong layerPtr, jlong bitmapPtr) {
950    Layer* layer = reinterpret_cast<Layer*>(layerPtr);
951    SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapPtr);
952    return LayerRenderer::copyLayer(layer, bitmap);
953}
954
955static void android_view_GLES20Canvas_pushLayerUpdate(JNIEnv* env, jobject clazz,
956        jlong rendererPtr, jlong layerPtr) {
957    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
958    Layer* layer = reinterpret_cast<Layer*>(layerPtr);
959    renderer->pushLayerUpdate(layer);
960}
961
962static void android_view_GLES20Canvas_cancelLayerUpdate(JNIEnv* env, jobject clazz,
963        jlong rendererPtr, jlong layerPtr) {
964    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
965    Layer* layer = reinterpret_cast<Layer*>(layerPtr);
966    renderer->cancelLayerUpdate(layer);
967}
968
969static void android_view_GLES20Canvas_clearLayerUpdates(JNIEnv* env, jobject clazz,
970        jlong rendererPtr) {
971    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
972    renderer->clearLayerUpdates();
973}
974
975static void android_view_GLES20Canvas_flushLayerUpdates(JNIEnv* env, jobject clazz,
976        jlong rendererPtr) {
977    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
978    renderer->flushLayerUpdates();
979}
980
981#endif // USE_OPENGL_RENDERER
982
983// ----------------------------------------------------------------------------
984// Common
985// ----------------------------------------------------------------------------
986
987static jboolean android_view_GLES20Canvas_isAvailable(JNIEnv* env, jobject clazz) {
988#ifdef USE_OPENGL_RENDERER
989    char prop[PROPERTY_VALUE_MAX];
990    if (property_get("ro.kernel.qemu", prop, NULL) == 0) {
991        // not in the emulator
992        return JNI_TRUE;
993    }
994    // In the emulator this property will be set to 1 when hardware GLES is
995    // enabled, 0 otherwise. On old emulator versions it will be undefined.
996    property_get("ro.kernel.qemu.gles", prop, "0");
997    return atoi(prop) == 1 ? JNI_TRUE : JNI_FALSE;
998#else
999    return JNI_FALSE;
1000#endif
1001}
1002
1003// ----------------------------------------------------------------------------
1004// Logging
1005// ----------------------------------------------------------------------------
1006
1007static void
1008android_app_ActivityThread_dumpGraphics(JNIEnv* env, jobject clazz, jobject javaFileDescriptor) {
1009#ifdef USE_OPENGL_RENDERER
1010    int fd = jniGetFDFromFileDescriptor(env, javaFileDescriptor);
1011    android::uirenderer::RenderNode::outputLogBuffer(fd);
1012#endif // USE_OPENGL_RENDERER
1013}
1014
1015// ----------------------------------------------------------------------------
1016// JNI Glue
1017// ----------------------------------------------------------------------------
1018
1019const char* const kClassPathName = "android/view/GLES20Canvas";
1020
1021static JNINativeMethod gMethods[] = {
1022    { "nIsAvailable",       "()Z",             (void*) android_view_GLES20Canvas_isAvailable },
1023
1024#ifdef USE_OPENGL_RENDERER
1025    { "nFlushCaches",       "(I)V",            (void*) android_view_GLES20Canvas_flushCaches },
1026    { "nInitCaches",        "()Z",             (void*) android_view_GLES20Canvas_initCaches },
1027    { "nTerminateCaches",   "()V",             (void*) android_view_GLES20Canvas_terminateCaches },
1028
1029    { "nInitAtlas",         "(Landroid/view/GraphicBuffer;[JI)V",
1030            (void*) android_view_GLES20Canvas_initAtlas },
1031
1032    { "nCreateRenderer",    "()J",             (void*) android_view_GLES20Canvas_createRenderer },
1033    { "nDestroyRenderer",   "(J)V",            (void*) android_view_GLES20Canvas_destroyRenderer },
1034    { "nSetViewport",       "(JII)V",          (void*) android_view_GLES20Canvas_setViewport },
1035    { "nPrepare",           "(JZ)I",           (void*) android_view_GLES20Canvas_prepare },
1036    { "nPrepareDirty",      "(JIIIIZ)I",       (void*) android_view_GLES20Canvas_prepareDirty },
1037    { "nFinish",            "(J)V",            (void*) android_view_GLES20Canvas_finish },
1038    { "nSetProperty",           "(Ljava/lang/String;Ljava/lang/String;)V",
1039            (void*) android_view_GLES20Canvas_setProperty },
1040
1041
1042    { "nGetStencilSize",    "()I",             (void*) android_view_GLES20Canvas_getStencilSize },
1043
1044    { "nCallDrawGLFunction", "(JJ)I",          (void*) android_view_GLES20Canvas_callDrawGLFunction },
1045
1046    { "nSave",              "(JI)I",           (void*) android_view_GLES20Canvas_save },
1047    { "nRestore",           "(J)V",            (void*) android_view_GLES20Canvas_restore },
1048    { "nRestoreToCount",    "(JI)V",           (void*) android_view_GLES20Canvas_restoreToCount },
1049    { "nGetSaveCount",      "(J)I",            (void*) android_view_GLES20Canvas_getSaveCount },
1050
1051    { "nSaveLayer",         "(JFFFFJI)I",      (void*) android_view_GLES20Canvas_saveLayer },
1052    { "nSaveLayer",         "(JJI)I",          (void*) android_view_GLES20Canvas_saveLayerClip },
1053    { "nSaveLayerAlpha",    "(JFFFFII)I",      (void*) android_view_GLES20Canvas_saveLayerAlpha },
1054    { "nSaveLayerAlpha",    "(JII)I",          (void*) android_view_GLES20Canvas_saveLayerAlphaClip },
1055
1056    { "nQuickReject",       "(JFFFF)Z",        (void*) android_view_GLES20Canvas_quickReject },
1057    { "nClipRect",          "(JFFFFI)Z",       (void*) android_view_GLES20Canvas_clipRectF },
1058    { "nClipRect",          "(JIIIII)Z",       (void*) android_view_GLES20Canvas_clipRect },
1059    { "nClipPath",          "(JJI)Z",          (void*) android_view_GLES20Canvas_clipPath },
1060    { "nClipRegion",        "(JJI)Z",          (void*) android_view_GLES20Canvas_clipRegion },
1061
1062    { "nTranslate",         "(JFF)V",          (void*) android_view_GLES20Canvas_translate },
1063    { "nRotate",            "(JF)V",           (void*) android_view_GLES20Canvas_rotate },
1064    { "nScale",             "(JFF)V",          (void*) android_view_GLES20Canvas_scale },
1065    { "nSkew",              "(JFF)V",          (void*) android_view_GLES20Canvas_skew },
1066
1067    { "nSetMatrix",         "(JJ)V",           (void*) android_view_GLES20Canvas_setMatrix },
1068    { "nGetMatrix",         "(JJ)V",           (void*) android_view_GLES20Canvas_getMatrix },
1069    { "nConcatMatrix",      "(JJ)V",           (void*) android_view_GLES20Canvas_concatMatrix },
1070
1071    { "nDrawBitmap",        "(JJ[BFFJ)V",      (void*) android_view_GLES20Canvas_drawBitmap },
1072    { "nDrawBitmap",        "(JJ[BFFFFFFFFJ)V",(void*) android_view_GLES20Canvas_drawBitmapRect },
1073    { "nDrawBitmap",        "(JJ[BJJ)V",       (void*) android_view_GLES20Canvas_drawBitmapMatrix },
1074    { "nDrawBitmap",        "(J[IIIFFIIZJ)V",  (void*) android_view_GLES20Canvas_drawBitmapData },
1075
1076    { "nDrawBitmapMesh",    "(JJ[BII[FI[IIJ)V",(void*) android_view_GLES20Canvas_drawBitmapMesh },
1077
1078    { "nDrawPatch",         "(JJ[BJFFFFJ)V",   (void*) android_view_GLES20Canvas_drawPatch },
1079
1080    { "nDrawColor",         "(JII)V",          (void*) android_view_GLES20Canvas_drawColor },
1081    { "nDrawRect",          "(JFFFFJ)V",       (void*) android_view_GLES20Canvas_drawRect },
1082    { "nDrawRects",         "(JJJ)V",          (void*) android_view_GLES20Canvas_drawRegionAsRects },
1083    { "nDrawRects",         "(J[FIJ)V",        (void*) android_view_GLES20Canvas_drawRects },
1084    { "nDrawRoundRect",     "(JFFFFFFJ)V",     (void*) android_view_GLES20Canvas_drawRoundRect },
1085    { "nDrawCircle",        "(JFFFJ)V",        (void*) android_view_GLES20Canvas_drawCircle },
1086    { "nDrawCircle",        "(JJJJJ)V",        (void*) android_view_GLES20Canvas_drawCircleProps },
1087    { "nDrawOval",          "(JFFFFJ)V",       (void*) android_view_GLES20Canvas_drawOval },
1088    { "nDrawArc",           "(JFFFFFFZJ)V",    (void*) android_view_GLES20Canvas_drawArc },
1089    { "nDrawPoints",        "(J[FIIJ)V",       (void*) android_view_GLES20Canvas_drawPoints },
1090
1091    { "nDrawPath",          "(JJJ)V",          (void*) android_view_GLES20Canvas_drawPath },
1092    { "nDrawLines",         "(J[FIIJ)V",       (void*) android_view_GLES20Canvas_drawLines },
1093
1094    { "nResetModifiers",    "(JI)V",           (void*) android_view_GLES20Canvas_resetModifiers },
1095    { "nSetupShader",       "(JJ)V",           (void*) android_view_GLES20Canvas_setupShader },
1096
1097    { "nSetupPaintFilter",  "(JII)V",          (void*) android_view_GLES20Canvas_setupPaintFilter },
1098    { "nResetPaintFilter",  "(J)V",            (void*) android_view_GLES20Canvas_resetPaintFilter },
1099
1100    { "nDrawText",          "(J[CIIFFIJJ)V",   (void*) android_view_GLES20Canvas_drawTextArray },
1101    { "nDrawText",          "(JLjava/lang/String;IIFFIJJ)V",
1102            (void*) android_view_GLES20Canvas_drawText },
1103
1104    { "nDrawTextOnPath",    "(J[CIIJFFIJ)V",   (void*) android_view_GLES20Canvas_drawTextArrayOnPath },
1105    { "nDrawTextOnPath",    "(JLjava/lang/String;IIJFFIJ)V",
1106            (void*) android_view_GLES20Canvas_drawTextOnPath },
1107
1108    { "nDrawTextRun",       "(J[CIIIIFFIJJ)V",  (void*) android_view_GLES20Canvas_drawTextRunArray },
1109    { "nDrawTextRun",       "(JLjava/lang/String;IIIIFFIJJ)V",
1110            (void*) android_view_GLES20Canvas_drawTextRun },
1111
1112    { "nDrawPosText",       "(J[CII[FJ)V",     (void*) android_view_GLES20Canvas_drawPosTextArray },
1113    { "nDrawPosText",       "(JLjava/lang/String;II[FJ)V",
1114            (void*) android_view_GLES20Canvas_drawPosText },
1115
1116    { "nGetClipBounds",     "(JLandroid/graphics/Rect;)Z",
1117            (void*) android_view_GLES20Canvas_getClipBounds },
1118
1119    { "nFinishRecording",        "(J)J",      (void*) android_view_GLES20Canvas_finishRecording },
1120    { "nDrawDisplayList",        "(JJLandroid/graphics/Rect;I)I",
1121            (void*) android_view_GLES20Canvas_drawDisplayList },
1122
1123    { "nCreateDisplayListRenderer", "()J",     (void*) android_view_GLES20Canvas_createDisplayListRenderer },
1124
1125    { "nDrawLayer",              "(JJFF)V",    (void*) android_view_GLES20Canvas_drawLayer },
1126    { "nCopyLayer",              "(JJ)Z",      (void*) android_view_GLES20Canvas_copyLayer },
1127    { "nClearLayerUpdates",      "(J)V",       (void*) android_view_GLES20Canvas_clearLayerUpdates },
1128    { "nFlushLayerUpdates",      "(J)V",       (void*) android_view_GLES20Canvas_flushLayerUpdates },
1129    { "nPushLayerUpdate",        "(JJ)V",      (void*) android_view_GLES20Canvas_pushLayerUpdate },
1130    { "nCancelLayerUpdate",      "(JJ)V",      (void*) android_view_GLES20Canvas_cancelLayerUpdate },
1131
1132    { "nGetMaximumTextureWidth",  "()I",       (void*) android_view_GLES20Canvas_getMaxTextureWidth },
1133    { "nGetMaximumTextureHeight", "()I",       (void*) android_view_GLES20Canvas_getMaxTextureHeight },
1134
1135#endif
1136};
1137
1138static JNINativeMethod gActivityThreadMethods[] = {
1139    { "dumpGraphicsInfo",        "(Ljava/io/FileDescriptor;)V",
1140                                               (void*) android_app_ActivityThread_dumpGraphics }
1141};
1142
1143
1144#ifdef USE_OPENGL_RENDERER
1145    #define FIND_CLASS(var, className) \
1146            var = env->FindClass(className); \
1147            LOG_FATAL_IF(! var, "Unable to find class " className);
1148
1149    #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor) \
1150            var = env->GetMethodID(clazz, methodName, methodDescriptor); \
1151            LOG_FATAL_IF(! var, "Unable to find method " methodName);
1152#else
1153    #define FIND_CLASS(var, className)
1154    #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor)
1155#endif
1156
1157int register_android_view_GLES20Canvas(JNIEnv* env) {
1158    jclass clazz;
1159    FIND_CLASS(clazz, "android/graphics/Rect");
1160    GET_METHOD_ID(gRectClassInfo.set, clazz, "set", "(IIII)V");
1161
1162    return AndroidRuntime::registerNativeMethods(env, kClassPathName, gMethods, NELEM(gMethods));
1163}
1164
1165const char* const kActivityThreadPathName = "android/app/ActivityThread";
1166
1167int register_android_app_ActivityThread(JNIEnv* env) {
1168    return AndroidRuntime::registerNativeMethods(env, kActivityThreadPathName,
1169            gActivityThreadMethods, NELEM(gActivityThreadMethods));
1170}
1171
1172};
1173