android_view_GLES20Canvas.cpp revision 477d7d1be9340c4730663af7b748d67e85bc2951 
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 <DisplayList.h>
46#include <DisplayListRenderer.h>
47#include <LayerRenderer.h>
48#include <OpenGLRenderer.h>
49#include <SkiaShader.h>
50#include <SkiaColorFilter.h>
51#include <Stencil.h>
52#include <Rect.h>
53
54#include <TextLayout.h>
55#include <TextLayoutCache.h>
56
57namespace android {
58
59using namespace uirenderer;
60
61/**
62 * Note: OpenGLRenderer JNI layer is generated and compiled only on supported
63 *       devices. This means all the logic must be compiled only when the
64 *       preprocessor variable USE_OPENGL_RENDERER is defined.
65 */
66#ifdef USE_OPENGL_RENDERER
67
68// ----------------------------------------------------------------------------
69// Defines
70// ----------------------------------------------------------------------------
71
72// Debug
73#define DEBUG_RENDERER 0
74
75// Debug
76#if DEBUG_RENDERER
77    #define RENDERER_LOGD(...) ALOGD(__VA_ARGS__)
78#else
79    #define RENDERER_LOGD(...)
80#endif
81
82#define MODIFIER_SHADOW 1
83#define MODIFIER_SHADER 2
84#define MODIFIER_COLOR_FILTER 4
85
86// ----------------------------------------------------------------------------
87
88static struct {
89    jmethodID set;
90} gRectClassInfo;
91
92// ----------------------------------------------------------------------------
93// Caching
94// ----------------------------------------------------------------------------
95
96static void android_view_GLES20Canvas_flushCaches(JNIEnv* env, jobject clazz,
97        jint mode) {
98    if (Caches::hasInstance()) {
99        Caches::getInstance().flush(static_cast<Caches::FlushMode>(mode));
100    }
101}
102
103static jboolean android_view_GLES20Canvas_initCaches(JNIEnv* env, jobject clazz) {
104    if (Caches::hasInstance()) {
105        return Caches::getInstance().init() ? JNI_TRUE : JNI_FALSE;
106    }
107    return JNI_FALSE;
108}
109
110static void android_view_GLES20Canvas_terminateCaches(JNIEnv* env, jobject clazz) {
111    if (Caches::hasInstance()) {
112        Caches::getInstance().terminate();
113    }
114}
115
116// ----------------------------------------------------------------------------
117// Caching
118// ----------------------------------------------------------------------------
119
120static void android_view_GLES20Canvas_initAtlas(JNIEnv* env, jobject clazz,
121        jobject graphicBuffer, jintArray atlasMapArray, jint count) {
122
123    sp<GraphicBuffer> buffer = graphicBufferForJavaObject(env, graphicBuffer);
124    jint* atlasMap = env->GetIntArrayElements(atlasMapArray, NULL);
125
126    Caches::getInstance().assetAtlas.init(buffer, atlasMap, count);
127
128    env->ReleaseIntArrayElements(atlasMapArray, atlasMap, 0);
129}
130
131// ----------------------------------------------------------------------------
132// Constructors
133// ----------------------------------------------------------------------------
134
135static jlong android_view_GLES20Canvas_createRenderer(JNIEnv* env, jobject clazz) {
136    RENDERER_LOGD("Create OpenGLRenderer");
137    OpenGLRenderer* renderer = new OpenGLRenderer();
138    renderer->initProperties();
139    return reinterpret_cast<jlong>(renderer);
140}
141
142static void android_view_GLES20Canvas_destroyRenderer(JNIEnv* env, jobject clazz,
143        jlong rendererPtr) {
144    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
145    RENDERER_LOGD("Destroy OpenGLRenderer");
146    delete renderer;
147}
148
149// ----------------------------------------------------------------------------
150// Setup
151// ----------------------------------------------------------------------------
152
153static void android_view_GLES20Canvas_setViewport(JNIEnv* env, jobject clazz,
154        jlong rendererPtr, jint width, jint height) {
155    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
156    renderer->setViewport(width, height);
157}
158
159static int android_view_GLES20Canvas_prepare(JNIEnv* env, jobject clazz,
160        jlong rendererPtr, jboolean opaque) {
161    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
162    return renderer->prepare(opaque);
163}
164
165static int android_view_GLES20Canvas_prepareDirty(JNIEnv* env, jobject clazz,
166        jlong rendererPtr, jint left, jint top, jint right, jint bottom,
167        jboolean opaque) {
168    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
169    return renderer->prepareDirty(left, top, right, bottom, opaque);
170}
171
172static void android_view_GLES20Canvas_finish(JNIEnv* env, jobject clazz,
173        jlong rendererPtr) {
174    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
175    renderer->finish();
176}
177
178static jint android_view_GLES20Canvas_getStencilSize(JNIEnv* env, jobject clazz) {
179    return Stencil::getStencilSize();
180}
181
182static void android_view_GLES20Canvas_setProperty(JNIEnv* env,
183        jobject clazz, jstring name, jstring value) {
184    if (!Caches::hasInstance()) {
185        ALOGW("can't set property, no Caches instance");
186        return;
187    }
188
189    if (name == NULL || value == NULL) {
190        ALOGW("can't set prop, null passed");
191    }
192
193    const char* nameCharArray = env->GetStringUTFChars(name, NULL);
194    const char* valueCharArray = env->GetStringUTFChars(value, NULL);
195    Caches::getInstance().setTempProperty(nameCharArray, valueCharArray);
196    env->ReleaseStringUTFChars(name, nameCharArray);
197    env->ReleaseStringUTFChars(name, valueCharArray);
198}
199
200static void android_view_GLES20Canvas_setCountOverdrawEnabled(JNIEnv* env, jobject clazz,
201        jlong rendererPtr, jboolean enabled) {
202    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
203    renderer->setCountOverdrawEnabled(enabled);
204}
205
206static jfloat android_view_GLES20Canvas_getOverdraw(JNIEnv* env, jobject clazz,
207        jlong rendererPtr) {
208    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
209    return renderer->getOverdraw();
210}
211
212// ----------------------------------------------------------------------------
213// Functor
214// ----------------------------------------------------------------------------
215
216static jint android_view_GLES20Canvas_callDrawGLFunction(JNIEnv* env, jobject clazz,
217        jlong rendererPtr, jlong functorPtr) {
218    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
219    Functor* functor = reinterpret_cast<Functor*>(functorPtr);
220    android::uirenderer::Rect dirty;
221    return renderer->callDrawGLFunction(functor, dirty);
222}
223
224static void android_view_GLES20Canvas_detachFunctor(JNIEnv* env,
225        jobject clazz, jlong rendererPtr, jint functorPtr) {
226    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
227    Functor* functor = reinterpret_cast<Functor*>(functorPtr);
228    renderer->detachFunctor(functor);
229}
230
231static void android_view_GLES20Canvas_attachFunctor(JNIEnv* env,
232        jobject clazz, jlong rendererPtr, jlong functorPtr) {
233    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
234    Functor* functor = reinterpret_cast<Functor*>(functorPtr);
235    renderer->attachFunctor(functor);
236}
237
238static jint android_view_GLES20Canvas_invokeFunctors(JNIEnv* env,
239        jobject clazz, jlong rendererPtr, jobject dirty) {
240    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
241    android::uirenderer::Rect bounds;
242    status_t status = renderer->invokeFunctors(bounds);
243    if (status != DrawGlInfo::kStatusDone && dirty != NULL) {
244        env->CallVoidMethod(dirty, gRectClassInfo.set,
245                int(bounds.left), int(bounds.top), int(bounds.right), int(bounds.bottom));
246    }
247    return status;
248}
249
250// ----------------------------------------------------------------------------
251// Misc
252// ----------------------------------------------------------------------------
253
254static jint android_view_GLES20Canvas_getMaxTextureWidth(JNIEnv* env, jobject clazz) {
255    return Caches::getInstance().maxTextureSize;
256}
257
258static jint android_view_GLES20Canvas_getMaxTextureHeight(JNIEnv* env, jobject clazz) {
259    return Caches::getInstance().maxTextureSize;
260}
261
262// ----------------------------------------------------------------------------
263// State
264// ----------------------------------------------------------------------------
265
266static jint android_view_GLES20Canvas_save(JNIEnv* env, jobject clazz, jlong rendererPtr,
267        jint flags) {
268    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
269    return renderer->save(flags);
270}
271
272static jint android_view_GLES20Canvas_getSaveCount(JNIEnv* env, jobject clazz,
273        jlong rendererPtr) {
274    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
275    return renderer->getSaveCount();
276}
277
278static void android_view_GLES20Canvas_restore(JNIEnv* env, jobject clazz,
279        jlong rendererPtr) {
280    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
281    renderer->restore();
282}
283
284static void android_view_GLES20Canvas_restoreToCount(JNIEnv* env, jobject clazz,
285        jlong rendererPtr, jint saveCount) {
286    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
287    renderer->restoreToCount(saveCount);
288}
289
290// ----------------------------------------------------------------------------
291// Layers
292// ----------------------------------------------------------------------------
293
294static jint android_view_GLES20Canvas_saveLayer(JNIEnv* env, jobject clazz,
295        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom,
296        jlong paintPtr, jint saveFlags) {
297    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
298    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
299    return renderer->saveLayer(left, top, right, bottom, paint, saveFlags);
300}
301
302static jint android_view_GLES20Canvas_saveLayerClip(JNIEnv* env, jobject clazz,
303        jlong rendererPtr, jlong paintPtr, jint saveFlags) {
304    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
305    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
306    const android::uirenderer::Rect& bounds(renderer->getClipBounds());
307    return renderer->saveLayer(bounds.left, bounds.top, bounds.right, bounds.bottom,
308            paint, saveFlags);
309}
310
311static jint android_view_GLES20Canvas_saveLayerAlpha(JNIEnv* env, jobject clazz,
312        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom,
313        jint alpha, jint saveFlags) {
314    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
315    return renderer->saveLayerAlpha(left, top, right, bottom, alpha, saveFlags);
316}
317
318static jint android_view_GLES20Canvas_saveLayerAlphaClip(JNIEnv* env, jobject clazz,
319        jlong rendererPtr, jint alpha, jint saveFlags) {
320    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
321    const android::uirenderer::Rect& bounds(renderer->getClipBounds());
322    return renderer->saveLayerAlpha(bounds.left, bounds.top, bounds.right, bounds.bottom,
323            alpha, saveFlags);
324}
325
326// ----------------------------------------------------------------------------
327// Clipping
328// ----------------------------------------------------------------------------
329
330static jboolean android_view_GLES20Canvas_quickReject(JNIEnv* env, jobject clazz,
331        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom) {
332    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
333    const bool result = renderer->quickRejectConservative(left, top, right, bottom);
334    return result ? JNI_TRUE : JNI_FALSE;
335}
336
337static jboolean android_view_GLES20Canvas_clipRectF(JNIEnv* env, jobject clazz,
338        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom,
339        SkRegion::Op op) {
340    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
341    const bool result = renderer->clipRect(left, top, right, bottom, op);
342    return result ? JNI_TRUE : JNI_FALSE;
343}
344
345static jboolean android_view_GLES20Canvas_clipRect(JNIEnv* env, jobject clazz,
346        jlong rendererPtr, jint left, jint top, jint right, jint bottom,
347        SkRegion::Op op) {
348    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
349    const bool result = renderer->clipRect(float(left), float(top), float(right),
350                                           float(bottom), op);
351    return result ? JNI_TRUE : JNI_FALSE;
352}
353
354static jboolean android_view_GLES20Canvas_clipPath(JNIEnv* env, jobject clazz,
355        jlong rendererPtr, jint pathPtr, SkRegion::Op op) {
356    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
357    SkPath* path = reinterpret_cast<SkPath*>(pathPtr);
358    const bool result = renderer->clipPath(path, op);
359    return result ? JNI_TRUE : JNI_FALSE;
360}
361
362static jboolean android_view_GLES20Canvas_clipRegion(JNIEnv* env, jobject clazz,
363        jlong rendererPtr, jint regionPtr, SkRegion::Op op) {
364    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
365    SkRegion* region = reinterpret_cast<SkRegion*>(regionPtr);
366    const bool result = renderer->clipRegion(region, op);
367    return result ? JNI_TRUE : JNI_FALSE;
368}
369
370static jboolean android_view_GLES20Canvas_getClipBounds(JNIEnv* env, jobject clazz,
371        jlong rendererPtr, jobject rect) {
372    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
373    const android::uirenderer::Rect& bounds(renderer->getClipBounds());
374
375    env->CallVoidMethod(rect, gRectClassInfo.set,
376            int(bounds.left), int(bounds.top), int(bounds.right), int(bounds.bottom));
377
378    return !bounds.isEmpty() ? JNI_TRUE : JNI_FALSE;
379}
380
381// ----------------------------------------------------------------------------
382// Transforms
383// ----------------------------------------------------------------------------
384
385static void android_view_GLES20Canvas_translate(JNIEnv* env, jobject clazz,
386        jlong rendererPtr, jfloat dx, jfloat dy) {
387    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
388    renderer->translate(dx, dy);
389}
390
391static void android_view_GLES20Canvas_rotate(JNIEnv* env, jobject clazz,
392        jlong rendererPtr, jfloat degrees) {
393    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
394    renderer->rotate(degrees);
395}
396
397static void android_view_GLES20Canvas_scale(JNIEnv* env, jobject clazz,
398        jlong rendererPtr, jfloat sx, jfloat sy) {
399    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
400    renderer->scale(sx, sy);
401}
402
403static void android_view_GLES20Canvas_skew(JNIEnv* env, jobject clazz,
404        jlong rendererPtr, jfloat sx, jfloat sy) {
405    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
406    renderer->skew(sx, sy);
407}
408
409static void android_view_GLES20Canvas_setMatrix(JNIEnv* env, jobject clazz,
410        jlong rendererPtr, jlong matrixPtr) {
411    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
412    SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixPtr);
413    renderer->setMatrix(matrix);
414}
415
416static void android_view_GLES20Canvas_getMatrix(JNIEnv* env, jobject clazz,
417        jlong rendererPtr, jlong matrixPtr) {
418    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
419    SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixPtr);
420    renderer->getMatrix(matrix);
421}
422
423static void android_view_GLES20Canvas_concatMatrix(JNIEnv* env, jobject clazz,
424        jlong rendererPtr, jlong matrixPtr) {
425    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
426    SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixPtr);
427    renderer->concatMatrix(matrix);
428}
429
430// ----------------------------------------------------------------------------
431// Drawing
432// ----------------------------------------------------------------------------
433
434static void android_view_GLES20Canvas_drawBitmap(JNIEnv* env, jobject clazz,
435        jlong rendererPtr, jlong bitmapPtr, jbyteArray buffer,
436        jfloat left, jfloat top, jlong paintPtr) {
437    SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapPtr);
438    // This object allows the renderer to allocate a global JNI ref to the buffer object.
439    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
440
441    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
442    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
443    renderer->drawBitmap(bitmap, left, top, paint);
444}
445
446static void android_view_GLES20Canvas_drawBitmapRect(JNIEnv* env, jobject clazz,
447        jlong rendererPtr, jlong bitmapPtr, jbyteArray buffer,
448        float srcLeft, float srcTop, float srcRight, float srcBottom,
449        float dstLeft, float dstTop, float dstRight, float dstBottom, jlong paintPtr) {
450    SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapPtr);
451    // This object allows the renderer to allocate a global JNI ref to the buffer object.
452    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
453
454    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
455    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
456    renderer->drawBitmap(bitmap, srcLeft, srcTop, srcRight, srcBottom,
457            dstLeft, dstTop, dstRight, dstBottom, paint);
458}
459
460static void android_view_GLES20Canvas_drawBitmapMatrix(JNIEnv* env, jobject clazz,
461        jlong rendererPtr, jlong bitmapPtr, jbyteArray buffer,
462        jlong matrixPtr, jlong paintPtr) {
463    SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapPtr);
464    // This object allows the renderer to allocate a global JNI ref to the buffer object.
465    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
466
467    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
468    SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixPtr);
469    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
470    renderer->drawBitmap(bitmap, matrix, paint);
471}
472
473static void android_view_GLES20Canvas_drawBitmapData(JNIEnv* env, jobject clazz,
474        jlong rendererPtr, jintArray colors, jint offset, jint stride,
475        jfloat left, jfloat top, jint width, jint height, jboolean hasAlpha, jlong paintPtr) {
476    SkBitmap* bitmap = new SkBitmap;
477    bitmap->setConfig(hasAlpha ? SkBitmap::kARGB_8888_Config : SkBitmap::kRGB_565_Config,
478            width, height);
479
480    if (!bitmap->allocPixels()) {
481        delete bitmap;
482        return;
483    }
484
485    if (!GraphicsJNI::SetPixels(env, colors, offset, stride, 0, 0, width, height, *bitmap, true)) {
486        delete bitmap;
487        return;
488    }
489
490    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
491    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
492    renderer->drawBitmapData(bitmap, left, top, paint);
493
494    // If the renderer is a deferred renderer it will own the bitmap
495    if (!renderer->isRecording()) {
496        delete bitmap;
497    }
498}
499
500static void android_view_GLES20Canvas_drawBitmapMesh(JNIEnv* env, jobject clazz,
501        jlong rendererPtr, jlong bitmapPtr, jbyteArray buffer,
502        jint meshWidth, jint meshHeight, jfloatArray vertices, jint offset, jintArray colors,
503        jint colorOffset, jlong paintPtr) {
504    SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapPtr);
505    // This object allows the renderer to allocate a global JNI ref to the buffer object.
506    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
507
508    jfloat* verticesArray = vertices ? env->GetFloatArrayElements(vertices, NULL) + offset : NULL;
509    jint* colorsArray = colors ? env->GetIntArrayElements(colors, NULL) + colorOffset : NULL;
510
511    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
512    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
513    renderer->drawBitmapMesh(bitmap, meshWidth, meshHeight, verticesArray, colorsArray, paint);
514
515    if (vertices) env->ReleaseFloatArrayElements(vertices, verticesArray, 0);
516    if (colors) env->ReleaseIntArrayElements(colors, colorsArray, 0);
517}
518
519static void android_view_GLES20Canvas_drawPatch(JNIEnv* env, jobject clazz,
520        jlong rendererPtr, jlong bitmapPtr, jbyteArray buffer, jlong patchPtr,
521        float left, float top, float right, float bottom, jlong paintPtr) {
522    SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapPtr);
523    // This object allows the renderer to allocate a global JNI ref to the buffer object.
524    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
525
526    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
527    Res_png_9patch* patch = reinterpret_cast<Res_png_9patch*>(patchPtr);
528    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
529    renderer->drawPatch(bitmap, patch, left, top, right, bottom, paint);
530}
531
532static void android_view_GLES20Canvas_drawColor(JNIEnv* env, jobject clazz,
533        jlong rendererPtr, jint color, jint mode) {
534    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
535    renderer->drawColor(color, static_cast<SkXfermode::Mode>(mode));
536}
537
538static void android_view_GLES20Canvas_drawRect(JNIEnv* env, jobject clazz,
539        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom,
540        jlong paintPtr) {
541    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
542    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
543    renderer->drawRect(left, top, right, bottom, paint);
544}
545
546static void android_view_GLES20Canvas_drawRoundRect(JNIEnv* env, jobject clazz,
547        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom,
548        jfloat rx, jfloat ry, jlong paintPtr) {
549    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
550    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
551    renderer->drawRoundRect(left, top, right, bottom, rx, ry, paint);
552}
553
554static void android_view_GLES20Canvas_drawCircle(JNIEnv* env, jobject clazz,
555        jlong rendererPtr, jfloat x, jfloat y, jfloat radius, jlong paintPtr) {
556    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
557    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
558    renderer->drawCircle(x, y, radius, paint);
559}
560
561static void android_view_GLES20Canvas_drawOval(JNIEnv* env, jobject clazz,
562        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom,
563        jlong paintPtr) {
564    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
565    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
566    renderer->drawOval(left, top, right, bottom, paint);
567}
568
569static void android_view_GLES20Canvas_drawArc(JNIEnv* env, jobject clazz,
570        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom,
571        jfloat startAngle, jfloat sweepAngle, jboolean useCenter, jlong paintPtr) {
572    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
573    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
574    renderer->drawArc(left, top, right, bottom, startAngle, sweepAngle, useCenter, paint);
575}
576
577static void android_view_GLES20Canvas_drawRegionAsRects(JNIEnv* env, jobject clazz,
578        jlong rendererPtr, jlong regionPtr, jlong paintPtr) {
579    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
580    SkRegion* region = reinterpret_cast<SkRegion*>(regionPtr);
581    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
582    if (paint->getStyle() != SkPaint::kFill_Style ||
583            (paint->isAntiAlias() && !renderer->isCurrentTransformSimple())) {
584        SkRegion::Iterator it(*region);
585        while (!it.done()) {
586            const SkIRect& r = it.rect();
587            renderer->drawRect(r.fLeft, r.fTop, r.fRight, r.fBottom, paint);
588            it.next();
589        }
590    } else {
591        int count = 0;
592        Vector<float> rects;
593        SkRegion::Iterator it(*region);
594        while (!it.done()) {
595            const SkIRect& r = it.rect();
596            rects.push(r.fLeft);
597            rects.push(r.fTop);
598            rects.push(r.fRight);
599            rects.push(r.fBottom);
600            count += 4;
601            it.next();
602        }
603        renderer->drawRects(rects.array(), count, paint);
604    }
605}
606
607static void android_view_GLES20Canvas_drawRects(JNIEnv* env, jobject clazz,
608        jlong rendererPtr, jfloatArray rects, jint count, jlong paintPtr) {
609    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
610    jfloat* storage = env->GetFloatArrayElements(rects, NULL);
611    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
612    renderer->drawRects(storage, count, paint);
613    env->ReleaseFloatArrayElements(rects, storage, 0);
614}
615
616static void android_view_GLES20Canvas_drawPoints(JNIEnv* env, jobject clazz,
617        jlong rendererPtr, jfloatArray points, jint offset, jint count, jlong paintPtr) {
618    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
619    jfloat* storage = env->GetFloatArrayElements(points, NULL);
620    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
621    renderer->drawPoints(storage + offset, count, paint);
622    env->ReleaseFloatArrayElements(points, storage, 0);
623}
624
625static void android_view_GLES20Canvas_drawPath(JNIEnv* env, jobject clazz,
626        jlong rendererPtr, jlong pathPtr, jlong paintPtr) {
627    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
628    SkPath* path = reinterpret_cast<SkPath*>(pathPtr);
629    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
630    renderer->drawPath(path, paint);
631}
632
633static void android_view_GLES20Canvas_drawLines(JNIEnv* env, jobject clazz,
634        jlong rendererPtr, jfloatArray points, jint offset, jint count, jlong paintPtr) {
635    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
636    jfloat* storage = env->GetFloatArrayElements(points, NULL);
637    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
638    renderer->drawLines(storage + offset, count, paint);
639    env->ReleaseFloatArrayElements(points, storage, 0);
640}
641
642// ----------------------------------------------------------------------------
643// Shaders and color filters
644// ----------------------------------------------------------------------------
645
646static void android_view_GLES20Canvas_resetModifiers(JNIEnv* env, jobject clazz,
647        jlong rendererPtr, jint modifiers) {
648    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
649    if (modifiers & MODIFIER_SHADOW) renderer->resetShadow();
650    if (modifiers & MODIFIER_SHADER) renderer->resetShader();
651    if (modifiers & MODIFIER_COLOR_FILTER) renderer->resetColorFilter();
652}
653
654static void android_view_GLES20Canvas_setupShader(JNIEnv* env, jobject clazz,
655        jlong rendererPtr, jlong shaderPtr) {
656    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
657    SkiaShader* shader = reinterpret_cast<SkiaShader*>(shaderPtr);
658    renderer->setupShader(shader);
659}
660
661static void android_view_GLES20Canvas_setupColorFilter(JNIEnv* env, jobject clazz,
662        jlong rendererPtr, jlong colorFilterPtr) {
663    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
664    SkiaColorFilter* colorFilter = reinterpret_cast<SkiaColorFilter*>(colorFilterPtr);
665    renderer->setupColorFilter(colorFilter);
666}
667
668static void android_view_GLES20Canvas_setupShadow(JNIEnv* env, jobject clazz,
669        jlong rendererPtr, jfloat radius, jfloat dx, jfloat dy, jint color) {
670    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
671    renderer->setupShadow(radius, dx, dy, color);
672}
673
674// ----------------------------------------------------------------------------
675// Draw filters
676// ----------------------------------------------------------------------------
677
678static void android_view_GLES20Canvas_setupPaintFilter(JNIEnv* env, jobject clazz,
679        jlong rendererPtr, jint clearBits, jint setBits) {
680    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
681    renderer->setupPaintFilter(clearBits, setBits);
682}
683
684static void android_view_GLES20Canvas_resetPaintFilter(JNIEnv* env, jobject clazz,
685        jlong rendererPtr) {
686    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
687    renderer->resetPaintFilter();
688}
689
690// ----------------------------------------------------------------------------
691// Text
692// ----------------------------------------------------------------------------
693
694static float xOffsetForTextAlign(SkPaint* paint, float totalAdvance) {
695    switch (paint->getTextAlign()) {
696        case SkPaint::kCenter_Align:
697            return -totalAdvance / 2.0f;
698            break;
699        case SkPaint::kRight_Align:
700            return -totalAdvance;
701            break;
702        default:
703            break;
704    }
705    return 0;
706}
707
708static void renderText(OpenGLRenderer* renderer, const jchar* text, int count,
709        jfloat x, jfloat y, int flags, SkPaint* paint) {
710    sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint,
711            text, 0, count, count, flags);
712    if (value == NULL) {
713        return;
714    }
715    const jchar* glyphs = value->getGlyphs();
716    size_t glyphsCount = value->getGlyphsCount();
717    jfloat totalAdvance = value->getTotalAdvance();
718    x += xOffsetForTextAlign(paint, totalAdvance);
719    const float* positions = value->getPos();
720    int bytesCount = glyphsCount * sizeof(jchar);
721    const SkRect& r = value->getBounds();
722    android::uirenderer::Rect bounds(r.fLeft, r.fTop, r.fRight, r.fBottom);
723    bounds.translate(x, y);
724
725    renderer->drawText((const char*) glyphs, bytesCount, glyphsCount,
726            x, y, positions, paint, totalAdvance, bounds);
727}
728
729static void renderTextOnPath(OpenGLRenderer* renderer, const jchar* text, int count,
730        SkPath* path, jfloat hOffset, jfloat vOffset, int flags, SkPaint* paint) {
731    sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint,
732            text, 0, count, count, flags);
733    if (value == NULL) {
734        return;
735    }
736    const jchar* glyphs = value->getGlyphs();
737    size_t glyphsCount = value->getGlyphsCount();
738    int bytesCount = glyphsCount * sizeof(jchar);
739    renderer->drawTextOnPath((const char*) glyphs, bytesCount, glyphsCount, path,
740            hOffset, vOffset, paint);
741}
742
743static void renderTextRun(OpenGLRenderer* renderer, const jchar* text,
744        jint start, jint count, jint contextCount, jfloat x, jfloat y,
745        int flags, SkPaint* paint) {
746    sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint,
747            text, start, count, contextCount, flags);
748    if (value == NULL) {
749        return;
750    }
751    const jchar* glyphs = value->getGlyphs();
752    size_t glyphsCount = value->getGlyphsCount();
753    jfloat totalAdvance = value->getTotalAdvance();
754    x += xOffsetForTextAlign(paint, totalAdvance);
755    const float* positions = value->getPos();
756    int bytesCount = glyphsCount * sizeof(jchar);
757    const SkRect& r = value->getBounds();
758    android::uirenderer::Rect bounds(r.fLeft, r.fTop, r.fRight, r.fBottom);
759    bounds.translate(x, y);
760
761    renderer->drawText((const char*) glyphs, bytesCount, glyphsCount,
762            x, y, positions, paint, totalAdvance, bounds);
763}
764
765static void android_view_GLES20Canvas_drawTextArray(JNIEnv* env, jobject clazz,
766        jlong rendererPtr, jcharArray text, jint index, jint count,
767        jfloat x, jfloat y, jint flags, jlong paintPtr) {
768    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
769    jchar* textArray = env->GetCharArrayElements(text, NULL);
770    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
771
772    renderText(renderer, textArray + index, count, x, y, flags, paint);
773    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
774}
775
776static void android_view_GLES20Canvas_drawText(JNIEnv* env, jobject clazz,
777        jlong rendererPtr, jstring text, jint start, jint end,
778        jfloat x, jfloat y, jint flags, jlong paintPtr) {
779    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
780    const jchar* textArray = env->GetStringChars(text, NULL);
781    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
782
783    renderText(renderer, textArray + start, end - start, x, y, flags, paint);
784    env->ReleaseStringChars(text, textArray);
785}
786
787static void android_view_GLES20Canvas_drawTextArrayOnPath(JNIEnv* env, jobject clazz,
788        jlong rendererPtr, jcharArray text, jint index, jint count,
789        jlong pathPtr, jfloat hOffset, jfloat vOffset, jint flags, jlong paintPtr) {
790    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
791    jchar* textArray = env->GetCharArrayElements(text, NULL);
792    SkPath* path = reinterpret_cast<SkPath*>(pathPtr);
793    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
794
795    renderTextOnPath(renderer, textArray + index, count, path,
796            hOffset, vOffset, flags, paint);
797    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
798}
799
800static void android_view_GLES20Canvas_drawTextOnPath(JNIEnv* env, jobject clazz,
801        jlong rendererPtr, jstring text, jint start, jint end,
802        jlong pathPtr, jfloat hOffset, jfloat vOffset, jint flags, jlong paintPtr) {
803    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
804    const jchar* textArray = env->GetStringChars(text, NULL);
805    SkPath* path = reinterpret_cast<SkPath*>(pathPtr);
806    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
807
808    renderTextOnPath(renderer, textArray + start, end - start, path,
809            hOffset, vOffset, flags, paint);
810    env->ReleaseStringChars(text, textArray);
811}
812
813static void android_view_GLES20Canvas_drawTextRunArray(JNIEnv* env, jobject clazz,
814        jlong rendererPtr, jcharArray text, jint index, jint count,
815        jint contextIndex, jint contextCount, jfloat x, jfloat y, jint dirFlags,
816        jlong paintPtr) {
817    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
818    jchar* textArray = env->GetCharArrayElements(text, NULL);
819    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
820
821    renderTextRun(renderer, textArray + contextIndex, index - contextIndex,
822            count, contextCount, x, y, dirFlags, paint);
823    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
824 }
825
826static void android_view_GLES20Canvas_drawTextRun(JNIEnv* env, jobject clazz,
827        jlong rendererPtr, jstring text, jint start, jint end,
828        jint contextStart, int contextEnd, jfloat x, jfloat y, jint dirFlags,
829        jlong paintPtr) {
830    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
831    const jchar* textArray = env->GetStringChars(text, NULL);
832    jint count = end - start;
833    jint contextCount = contextEnd - contextStart;
834    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
835
836    renderTextRun(renderer, textArray + contextStart, start - contextStart,
837            count, contextCount, x, y, dirFlags, paint);
838    env->ReleaseStringChars(text, textArray);
839}
840
841static void renderPosText(OpenGLRenderer* renderer, const jchar* text, int count,
842        const jfloat* positions, jint dirFlags, SkPaint* paint) {
843    sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint,
844            text, 0, count, count, dirFlags);
845    if (value == NULL) {
846        return;
847    }
848    const jchar* glyphs = value->getGlyphs();
849    size_t glyphsCount = value->getGlyphsCount();
850    if (count < int(glyphsCount)) glyphsCount = count;
851    int bytesCount = glyphsCount * sizeof(jchar);
852
853    renderer->drawPosText((const char*) glyphs, bytesCount, glyphsCount, positions, paint);
854}
855
856static void android_view_GLES20Canvas_drawPosTextArray(JNIEnv* env, jobject clazz,
857        jlong rendererPtr, jcharArray text, jint index, jint count,
858        jfloatArray pos, jlong paintPtr) {
859    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
860    jchar* textArray = env->GetCharArrayElements(text, NULL);
861    jfloat* positions = env->GetFloatArrayElements(pos, NULL);
862    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
863
864    renderPosText(renderer, textArray + index, count, positions, kBidi_LTR, paint);
865
866    env->ReleaseFloatArrayElements(pos, positions, JNI_ABORT);
867    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
868}
869
870static void android_view_GLES20Canvas_drawPosText(JNIEnv* env, jobject clazz,
871        jlong rendererPtr, jstring text, jint start, jint end,
872        jfloatArray pos, jlong paintPtr) {
873    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
874    const jchar* textArray = env->GetStringChars(text, NULL);
875    jfloat* positions = env->GetFloatArrayElements(pos, NULL);
876    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
877
878    renderPosText(renderer, textArray + start, end - start, positions, kBidi_LTR, paint);
879
880    env->ReleaseFloatArrayElements(pos, positions, JNI_ABORT);
881    env->ReleaseStringChars(text, textArray);
882}
883
884// ----------------------------------------------------------------------------
885// Display lists
886// ----------------------------------------------------------------------------
887
888static jint android_view_GLES20Canvas_getDisplayList(JNIEnv* env,
889        jobject clazz, jlong rendererPtr, jlong displayListPtr) {
890    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
891    DisplayList* displayList = reinterpret_cast<DisplayList*>(displayListPtr);
892    return reinterpret_cast<jint>(renderer->getDisplayList(displayList));
893}
894
895static jint android_view_GLES20Canvas_createDisplayListRenderer(JNIEnv* env,
896        jobject clazz) {
897    return reinterpret_cast<jint>(new DisplayListRenderer);
898}
899
900static void android_view_GLES20Canvas_resetDisplayListRenderer(JNIEnv* env,
901        jobject clazz, jlong rendererPtr) {
902    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
903    renderer->reset();
904}
905
906static jint android_view_GLES20Canvas_drawDisplayList(JNIEnv* env,
907        jobject clazz, jlong rendererPtr, jlong displayListPtr,
908        jobject dirty, jint flags) {
909    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
910    DisplayList* displayList = reinterpret_cast<DisplayList*>(displayListPtr);
911    android::uirenderer::Rect bounds;
912    status_t status = renderer->drawDisplayList(displayList, bounds, flags);
913    if (status != DrawGlInfo::kStatusDone && dirty != NULL) {
914        env->CallVoidMethod(dirty, gRectClassInfo.set,
915                int(bounds.left), int(bounds.top), int(bounds.right), int(bounds.bottom));
916    }
917    return status;
918}
919
920// ----------------------------------------------------------------------------
921// Layers
922// ----------------------------------------------------------------------------
923
924static void android_view_GLES20Canvas_interrupt(JNIEnv* env, jobject clazz,
925        jlong rendererPtr) {
926    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
927    renderer->interrupt();
928}
929
930static void android_view_GLES20Canvas_resume(JNIEnv* env, jobject clazz,
931        jlong rendererPtr) {
932    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
933    renderer->resume();
934}
935
936static jint android_view_GLES20Canvas_createLayerRenderer(JNIEnv* env,
937        jobject clazz, jlong layerPtr) {
938    Layer* layer = reinterpret_cast<Layer*>(layerPtr);
939    if (layer) {
940        OpenGLRenderer* renderer = new LayerRenderer(layer);
941        renderer->initProperties();
942        return reinterpret_cast<jint>(renderer);
943    }
944    return NULL;
945}
946
947static jlong android_view_GLES20Canvas_createTextureLayer(JNIEnv* env, jobject clazz,
948        jboolean isOpaque, jintArray layerInfo) {
949    Layer* layer = LayerRenderer::createTextureLayer(isOpaque);
950
951    if (layer) {
952        jint* storage = env->GetIntArrayElements(layerInfo, NULL);
953        storage[0] = layer->getTexture();
954        env->ReleaseIntArrayElements(layerInfo, storage, 0);
955    }
956
957    return reinterpret_cast<jlong>(layer);
958}
959
960static jlong android_view_GLES20Canvas_createLayer(JNIEnv* env, jobject clazz,
961        jint width, jint height, jboolean isOpaque, jintArray layerInfo) {
962    Layer* layer = LayerRenderer::createLayer(width, height, isOpaque);
963
964    if (layer) {
965        jint* storage = env->GetIntArrayElements(layerInfo, NULL);
966        storage[0] = layer->getWidth();
967        storage[1] = layer->getHeight();
968        env->ReleaseIntArrayElements(layerInfo, storage, 0);
969    }
970
971    return reinterpret_cast<jlong>(layer);
972}
973
974static jboolean android_view_GLES20Canvas_resizeLayer(JNIEnv* env, jobject clazz,
975        jlong layerPtr, jint width, jint height, jintArray layerInfo) {
976    Layer* layer = reinterpret_cast<Layer*>(layerPtr);
977    if (LayerRenderer::resizeLayer(layer, width, height)) {
978        jint* storage = env->GetIntArrayElements(layerInfo, NULL);
979        storage[0] = layer->getWidth();
980        storage[1] = layer->getHeight();
981        env->ReleaseIntArrayElements(layerInfo, storage, 0);
982        return JNI_TRUE;
983    }
984    return JNI_FALSE;
985}
986
987static void android_view_GLES20Canvas_setLayerPaint(JNIEnv* env, jobject clazz,
988        jlong layerPtr, jlong paintPtr) {
989    Layer* layer = reinterpret_cast<Layer*>(layerPtr);
990    if (layer) {
991        SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
992        layer->setPaint(paint);
993    }
994}
995
996static void android_view_GLES20Canvas_setLayerColorFilter(JNIEnv* env, jobject clazz,
997        jlong layerPtr, jint colorFilterPtr) {
998    Layer* layer = reinterpret_cast<Layer*>(layerPtr);
999    if (layer) {
1000        SkiaColorFilter* colorFilter = reinterpret_cast<SkiaColorFilter*>(colorFilterPtr);
1001        layer->setColorFilter(colorFilter);
1002    }
1003}
1004
1005static void android_view_GLES20Canvas_setOpaqueLayer(JNIEnv* env, jobject clazz,
1006        jlong layerPtr, jboolean isOpaque) {
1007    Layer* layer = reinterpret_cast<Layer*>(layerPtr);
1008    if (layer) {
1009        layer->setBlend(!isOpaque);
1010    }
1011}
1012
1013static void android_view_GLES20Canvas_updateTextureLayer(JNIEnv* env, jobject clazz,
1014        jlong layerPtr, jint width, jint height, jboolean isOpaque, jobject surface) {
1015    float transform[16];
1016    sp<GLConsumer> surfaceTexture(SurfaceTexture_getSurfaceTexture(env, surface));
1017
1018    if (surfaceTexture->updateTexImage() == NO_ERROR) {
1019        int64_t frameNumber = surfaceTexture->getFrameNumber();
1020        // If the GLConsumer queue is in synchronous mode, need to discard all
1021        // but latest frame, using the frame number to tell when we no longer
1022        // have newer frames to target. Since we can't tell which mode it is in,
1023        // do this unconditionally.
1024        int dropCounter = 0;
1025        while (surfaceTexture->updateTexImage() == NO_ERROR) {
1026            int64_t newFrameNumber = surfaceTexture->getFrameNumber();
1027            if (newFrameNumber == frameNumber) break;
1028            frameNumber = newFrameNumber;
1029            dropCounter++;
1030        }
1031        #if DEBUG_RENDERER
1032        if (dropCounter > 0) {
1033            RENDERER_LOGD("Dropped %d frames on texture layer update", dropCounter);
1034        }
1035        #endif
1036        surfaceTexture->getTransformMatrix(transform);
1037        GLenum renderTarget = surfaceTexture->getCurrentTextureTarget();
1038
1039        Layer* layer = reinterpret_cast<Layer*>(layerPtr);
1040        LayerRenderer::updateTextureLayer(layer, width, height, isOpaque, renderTarget, transform);
1041    }
1042}
1043
1044static void android_view_GLES20Canvas_updateRenderLayer(JNIEnv* env, jobject clazz,
1045        jlong layerPtr, jlong rendererPtr, jlong displayListPtr,
1046        jint left, jint top, jint right, jint bottom) {
1047    Layer* layer = reinterpret_cast<Layer*>(layerPtr);
1048    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
1049    DisplayList* displayList = reinterpret_cast<DisplayList*>(displayListPtr);
1050    layer->updateDeferred(renderer, displayList, left, top, right, bottom);
1051}
1052
1053static void android_view_GLES20Canvas_clearLayerTexture(JNIEnv* env, jobject clazz,
1054        jlong layerPtr) {
1055    Layer* layer = reinterpret_cast<Layer*>(layerPtr);
1056    layer->clearTexture();
1057}
1058
1059static void android_view_GLES20Canvas_setTextureLayerTransform(JNIEnv* env, jobject clazz,
1060        jlong layerPtr, jlong matrixPtr) {
1061    Layer* layer = reinterpret_cast<Layer*>(layerPtr);
1062    SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixPtr);
1063    layer->getTransform().load(*matrix);
1064}
1065
1066static void android_view_GLES20Canvas_destroyLayer(JNIEnv* env, jobject clazz, jlong layerPtr) {
1067    Layer* layer = reinterpret_cast<Layer*>(layerPtr);
1068    LayerRenderer::destroyLayer(layer);
1069}
1070
1071static void android_view_GLES20Canvas_destroyLayerDeferred(JNIEnv* env,
1072        jobject clazz, jlong layerPtr) {
1073    Layer* layer = reinterpret_cast<Layer*>(layerPtr);
1074    LayerRenderer::destroyLayerDeferred(layer);
1075}
1076
1077static void android_view_GLES20Canvas_drawLayer(JNIEnv* env, jobject clazz,
1078        jlong rendererPtr, jlong layerPtr, jfloat x, jfloat y) {
1079    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
1080    Layer* layer = reinterpret_cast<Layer*>(layerPtr);
1081    renderer->drawLayer(layer, x, y);
1082}
1083
1084static jboolean android_view_GLES20Canvas_copyLayer(JNIEnv* env, jobject clazz,
1085        jlong layerPtr, jlong bitmapPtr) {
1086    Layer* layer = reinterpret_cast<Layer*>(layerPtr);
1087    SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapPtr);
1088    return LayerRenderer::copyLayer(layer, bitmap);
1089}
1090
1091static void android_view_GLES20Canvas_pushLayerUpdate(JNIEnv* env, jobject clazz,
1092        jlong rendererPtr, jlong layerPtr) {
1093    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
1094    Layer* layer = reinterpret_cast<Layer*>(layerPtr);
1095    renderer->pushLayerUpdate(layer);
1096}
1097
1098static void android_view_GLES20Canvas_cancelLayerUpdate(JNIEnv* env, jobject clazz,
1099        jlong rendererPtr, jlong layerPtr) {
1100    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
1101    Layer* layer = reinterpret_cast<Layer*>(layerPtr);
1102    renderer->cancelLayerUpdate(layer);
1103}
1104
1105static void android_view_GLES20Canvas_clearLayerUpdates(JNIEnv* env, jobject clazz,
1106        jlong rendererPtr) {
1107    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
1108    renderer->clearLayerUpdates();
1109}
1110
1111static void android_view_GLES20Canvas_flushLayerUpdates(JNIEnv* env, jobject clazz,
1112        jlong rendererPtr) {
1113    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
1114    renderer->flushLayerUpdates();
1115}
1116
1117#endif // USE_OPENGL_RENDERER
1118
1119// ----------------------------------------------------------------------------
1120// Common
1121// ----------------------------------------------------------------------------
1122
1123static jboolean android_view_GLES20Canvas_isAvailable(JNIEnv* env, jobject clazz) {
1124#ifdef USE_OPENGL_RENDERER
1125    char prop[PROPERTY_VALUE_MAX];
1126    if (property_get("ro.kernel.qemu", prop, NULL) == 0) {
1127        // not in the emulator
1128        return JNI_TRUE;
1129    }
1130    // In the emulator this property will be set to 1 when hardware GLES is
1131    // enabled, 0 otherwise. On old emulator versions it will be undefined.
1132    property_get("ro.kernel.qemu.gles", prop, "0");
1133    return atoi(prop) == 1 ? JNI_TRUE : JNI_FALSE;
1134#else
1135    return JNI_FALSE;
1136#endif
1137}
1138
1139// ----------------------------------------------------------------------------
1140// Logging
1141// ----------------------------------------------------------------------------
1142
1143static void
1144android_app_ActivityThread_dumpGraphics(JNIEnv* env, jobject clazz, jobject javaFileDescriptor) {
1145#ifdef USE_OPENGL_RENDERER
1146    int fd = jniGetFDFromFileDescriptor(env, javaFileDescriptor);
1147    android::uirenderer::DisplayList::outputLogBuffer(fd);
1148#endif // USE_OPENGL_RENDERER
1149}
1150
1151// ----------------------------------------------------------------------------
1152// JNI Glue
1153// ----------------------------------------------------------------------------
1154
1155const char* const kClassPathName = "android/view/GLES20Canvas";
1156
1157static JNINativeMethod gMethods[] = {
1158    { "nIsAvailable",       "()Z",             (void*) android_view_GLES20Canvas_isAvailable },
1159
1160#ifdef USE_OPENGL_RENDERER
1161    { "nFlushCaches",       "(I)V",            (void*) android_view_GLES20Canvas_flushCaches },
1162    { "nInitCaches",        "()Z",             (void*) android_view_GLES20Canvas_initCaches },
1163    { "nTerminateCaches",   "()V",             (void*) android_view_GLES20Canvas_terminateCaches },
1164
1165    { "nInitAtlas",         "(Landroid/view/GraphicBuffer;[II)V",
1166            (void*) android_view_GLES20Canvas_initAtlas },
1167
1168    { "nCreateRenderer",    "()J",             (void*) android_view_GLES20Canvas_createRenderer },
1169    { "nDestroyRenderer",   "(J)V",            (void*) android_view_GLES20Canvas_destroyRenderer },
1170    { "nSetViewport",       "(JII)V",          (void*) android_view_GLES20Canvas_setViewport },
1171    { "nPrepare",           "(JZ)I",           (void*) android_view_GLES20Canvas_prepare },
1172    { "nPrepareDirty",      "(JIIIIZ)I",       (void*) android_view_GLES20Canvas_prepareDirty },
1173    { "nFinish",            "(J)V",            (void*) android_view_GLES20Canvas_finish },
1174    { "nSetProperty",           "(Ljava/lang/String;Ljava/lang/String;)V",
1175            (void*) android_view_GLES20Canvas_setProperty },
1176
1177    { "nSetCountOverdrawEnabled", "(JZ)V",     (void*) android_view_GLES20Canvas_setCountOverdrawEnabled },
1178    { "nGetOverdraw",             "(J)F",      (void*) android_view_GLES20Canvas_getOverdraw },
1179
1180    { "nGetStencilSize",    "()I",             (void*) android_view_GLES20Canvas_getStencilSize },
1181
1182    { "nCallDrawGLFunction", "(JJ)I",          (void*) android_view_GLES20Canvas_callDrawGLFunction },
1183    { "nDetachFunctor",      "(JJ)V",          (void*) android_view_GLES20Canvas_detachFunctor },
1184    { "nAttachFunctor",      "(JJ)V",          (void*) android_view_GLES20Canvas_attachFunctor },
1185    { "nInvokeFunctors",     "(JLandroid/graphics/Rect;)I",
1186            (void*) android_view_GLES20Canvas_invokeFunctors },
1187
1188    { "nSave",              "(JI)I",           (void*) android_view_GLES20Canvas_save },
1189    { "nRestore",           "(J)V",            (void*) android_view_GLES20Canvas_restore },
1190    { "nRestoreToCount",    "(JI)V",           (void*) android_view_GLES20Canvas_restoreToCount },
1191    { "nGetSaveCount",      "(J)I",            (void*) android_view_GLES20Canvas_getSaveCount },
1192
1193    { "nSaveLayer",         "(JFFFFJI)I",      (void*) android_view_GLES20Canvas_saveLayer },
1194    { "nSaveLayer",         "(JJI)I",          (void*) android_view_GLES20Canvas_saveLayerClip },
1195    { "nSaveLayerAlpha",    "(JFFFFII)I",      (void*) android_view_GLES20Canvas_saveLayerAlpha },
1196    { "nSaveLayerAlpha",    "(JII)I",          (void*) android_view_GLES20Canvas_saveLayerAlphaClip },
1197
1198    { "nQuickReject",       "(JFFFF)Z",        (void*) android_view_GLES20Canvas_quickReject },
1199    { "nClipRect",          "(JFFFFI)Z",       (void*) android_view_GLES20Canvas_clipRectF },
1200    { "nClipRect",          "(JIIIII)Z",       (void*) android_view_GLES20Canvas_clipRect },
1201    { "nClipPath",          "(JJI)Z",          (void*) android_view_GLES20Canvas_clipPath },
1202    { "nClipRegion",        "(JJI)Z",          (void*) android_view_GLES20Canvas_clipRegion },
1203
1204    { "nTranslate",         "(JFF)V",          (void*) android_view_GLES20Canvas_translate },
1205    { "nRotate",            "(JF)V",           (void*) android_view_GLES20Canvas_rotate },
1206    { "nScale",             "(JFF)V",          (void*) android_view_GLES20Canvas_scale },
1207    { "nSkew",              "(JFF)V",          (void*) android_view_GLES20Canvas_skew },
1208
1209    { "nSetMatrix",         "(JJ)V",           (void*) android_view_GLES20Canvas_setMatrix },
1210    { "nGetMatrix",         "(JJ)V",           (void*) android_view_GLES20Canvas_getMatrix },
1211    { "nConcatMatrix",      "(JJ)V",           (void*) android_view_GLES20Canvas_concatMatrix },
1212
1213    { "nDrawBitmap",        "(JJ[BFFJ)V",      (void*) android_view_GLES20Canvas_drawBitmap },
1214    { "nDrawBitmap",        "(JJ[BFFFFFFFFJ)V",(void*) android_view_GLES20Canvas_drawBitmapRect },
1215    { "nDrawBitmap",        "(JJ[BJJ)V",       (void*) android_view_GLES20Canvas_drawBitmapMatrix },
1216    { "nDrawBitmap",        "(J[IIIFFIIZJ)V",  (void*) android_view_GLES20Canvas_drawBitmapData },
1217
1218    { "nDrawBitmapMesh",    "(JJ[BII[FI[IIJ)V",(void*) android_view_GLES20Canvas_drawBitmapMesh },
1219
1220    { "nDrawPatch",         "(JJ[BJFFFFJ)V",   (void*) android_view_GLES20Canvas_drawPatch },
1221
1222    { "nDrawColor",         "(JII)V",          (void*) android_view_GLES20Canvas_drawColor },
1223    { "nDrawRect",          "(JFFFFJ)V",       (void*) android_view_GLES20Canvas_drawRect },
1224    { "nDrawRects",         "(JJJ)V",          (void*) android_view_GLES20Canvas_drawRegionAsRects },
1225    { "nDrawRects",         "(J[FIJ)V",        (void*) android_view_GLES20Canvas_drawRects },
1226    { "nDrawRoundRect",     "(JFFFFFFJ)V",     (void*) android_view_GLES20Canvas_drawRoundRect },
1227    { "nDrawCircle",        "(JFFFJ)V",        (void*) android_view_GLES20Canvas_drawCircle },
1228    { "nDrawOval",          "(JFFFFJ)V",       (void*) android_view_GLES20Canvas_drawOval },
1229    { "nDrawArc",           "(JFFFFFFZJ)V",    (void*) android_view_GLES20Canvas_drawArc },
1230    { "nDrawPoints",        "(J[FIIJ)V",       (void*) android_view_GLES20Canvas_drawPoints },
1231
1232    { "nDrawPath",          "(JJJ)V",          (void*) android_view_GLES20Canvas_drawPath },
1233    { "nDrawLines",         "(J[FIIJ)V",       (void*) android_view_GLES20Canvas_drawLines },
1234
1235    { "nResetModifiers",    "(JI)V",           (void*) android_view_GLES20Canvas_resetModifiers },
1236    { "nSetupShader",       "(JJ)V",           (void*) android_view_GLES20Canvas_setupShader },
1237    { "nSetupColorFilter",  "(JJ)V",           (void*) android_view_GLES20Canvas_setupColorFilter },
1238    { "nSetupShadow",       "(JFFFI)V",        (void*) android_view_GLES20Canvas_setupShadow },
1239
1240    { "nSetupPaintFilter",  "(JII)V",          (void*) android_view_GLES20Canvas_setupPaintFilter },
1241    { "nResetPaintFilter",  "(J)V",            (void*) android_view_GLES20Canvas_resetPaintFilter },
1242
1243    { "nDrawText",          "(J[CIIFFIJ)V",    (void*) android_view_GLES20Canvas_drawTextArray },
1244    { "nDrawText",          "(JLjava/lang/String;IIFFIJ)V",
1245            (void*) android_view_GLES20Canvas_drawText },
1246
1247    { "nDrawTextOnPath",    "(J[CIIJFFIJ)V",   (void*) android_view_GLES20Canvas_drawTextArrayOnPath },
1248    { "nDrawTextOnPath",    "(JLjava/lang/String;IIJFFIJ)V",
1249            (void*) android_view_GLES20Canvas_drawTextOnPath },
1250
1251    { "nDrawTextRun",       "(J[CIIIIFFIJ)V",  (void*) android_view_GLES20Canvas_drawTextRunArray },
1252    { "nDrawTextRun",       "(JLjava/lang/String;IIIIFFIJ)V",
1253            (void*) android_view_GLES20Canvas_drawTextRun },
1254
1255    { "nDrawPosText",       "(J[CII[FJ)V",     (void*) android_view_GLES20Canvas_drawPosTextArray },
1256    { "nDrawPosText",       "(JLjava/lang/String;II[FJ)V",
1257            (void*) android_view_GLES20Canvas_drawPosText },
1258
1259    { "nGetClipBounds",     "(JLandroid/graphics/Rect;)Z",
1260            (void*) android_view_GLES20Canvas_getClipBounds },
1261
1262    { "nGetDisplayList",         "(JJ)J",      (void*) android_view_GLES20Canvas_getDisplayList },
1263    { "nDrawDisplayList",        "(JJLandroid/graphics/Rect;I)I",
1264            (void*) android_view_GLES20Canvas_drawDisplayList },
1265
1266    { "nCreateDisplayListRenderer", "()J",     (void*) android_view_GLES20Canvas_createDisplayListRenderer },
1267    { "nResetDisplayListRenderer",  "(J)V",    (void*) android_view_GLES20Canvas_resetDisplayListRenderer },
1268
1269    { "nInterrupt",              "(J)V",       (void*) android_view_GLES20Canvas_interrupt },
1270    { "nResume",                 "(J)V",       (void*) android_view_GLES20Canvas_resume },
1271
1272    { "nCreateLayerRenderer",    "(J)J",       (void*) android_view_GLES20Canvas_createLayerRenderer },
1273    { "nCreateLayer",            "(IIZ[I)J",   (void*) android_view_GLES20Canvas_createLayer },
1274    { "nResizeLayer",            "(JII[I)Z" ,  (void*) android_view_GLES20Canvas_resizeLayer },
1275    { "nSetLayerPaint",          "(JJ)V",      (void*) android_view_GLES20Canvas_setLayerPaint },
1276    { "nSetLayerColorFilter",    "(JJ)V",      (void*) android_view_GLES20Canvas_setLayerColorFilter },
1277    { "nSetOpaqueLayer",         "(JZ)V",      (void*) android_view_GLES20Canvas_setOpaqueLayer },
1278    { "nCreateTextureLayer",     "(Z[I)J",     (void*) android_view_GLES20Canvas_createTextureLayer },
1279    { "nUpdateTextureLayer",     "(JIIZLandroid/graphics/SurfaceTexture;)V",
1280            (void*) android_view_GLES20Canvas_updateTextureLayer },
1281    { "nUpdateRenderLayer",      "(JJJIIII)V", (void*) android_view_GLES20Canvas_updateRenderLayer },
1282    { "nClearLayerTexture",      "(J)V",       (void*) android_view_GLES20Canvas_clearLayerTexture },
1283    { "nDestroyLayer",           "(J)V",       (void*) android_view_GLES20Canvas_destroyLayer },
1284    { "nDestroyLayerDeferred",   "(J)V",       (void*) android_view_GLES20Canvas_destroyLayerDeferred },
1285    { "nDrawLayer",              "(JJFF)V",    (void*) android_view_GLES20Canvas_drawLayer },
1286    { "nCopyLayer",              "(JJ)Z",      (void*) android_view_GLES20Canvas_copyLayer },
1287    { "nClearLayerUpdates",      "(J)V",       (void*) android_view_GLES20Canvas_clearLayerUpdates },
1288    { "nFlushLayerUpdates",      "(J)V",       (void*) android_view_GLES20Canvas_flushLayerUpdates },
1289    { "nPushLayerUpdate",        "(JJ)V",      (void*) android_view_GLES20Canvas_pushLayerUpdate },
1290    { "nCancelLayerUpdate",      "(JJ)V",      (void*) android_view_GLES20Canvas_cancelLayerUpdate },
1291
1292    { "nSetTextureLayerTransform", "(JJ)V",    (void*) android_view_GLES20Canvas_setTextureLayerTransform },
1293
1294    { "nGetMaximumTextureWidth",  "()I",       (void*) android_view_GLES20Canvas_getMaxTextureWidth },
1295    { "nGetMaximumTextureHeight", "()I",       (void*) android_view_GLES20Canvas_getMaxTextureHeight },
1296
1297#endif
1298};
1299
1300static JNINativeMethod gActivityThreadMethods[] = {
1301    { "dumpGraphicsInfo",        "(Ljava/io/FileDescriptor;)V",
1302                                               (void*) android_app_ActivityThread_dumpGraphics }
1303};
1304
1305
1306#ifdef USE_OPENGL_RENDERER
1307    #define FIND_CLASS(var, className) \
1308            var = env->FindClass(className); \
1309            LOG_FATAL_IF(! var, "Unable to find class " className);
1310
1311    #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor) \
1312            var = env->GetMethodID(clazz, methodName, methodDescriptor); \
1313            LOG_FATAL_IF(! var, "Unable to find method " methodName);
1314#else
1315    #define FIND_CLASS(var, className)
1316    #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor)
1317#endif
1318
1319int register_android_view_GLES20Canvas(JNIEnv* env) {
1320    jclass clazz;
1321    FIND_CLASS(clazz, "android/graphics/Rect");
1322    GET_METHOD_ID(gRectClassInfo.set, clazz, "set", "(IIII)V");
1323
1324    return AndroidRuntime::registerNativeMethods(env, kClassPathName, gMethods, NELEM(gMethods));
1325}
1326
1327const char* const kActivityThreadPathName = "android/app/ActivityThread";
1328
1329int register_android_app_ActivityThread(JNIEnv* env) {
1330    return AndroidRuntime::registerNativeMethods(env, kActivityThreadPathName,
1331            gActivityThreadMethods, NELEM(gActivityThreadMethods));
1332}
1333
1334};
1335