android_view_HardwareLayer.cpp revision 25fbb3fa1138675379102a44405852555cefccbd 
1/*
2 * Copyright (C) 2014 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_runtime/AndroidRuntime.h>
24#include <android_runtime/android_graphics_SurfaceTexture.h>
25
26#include <gui/GLConsumer.h>
27
28#include <SkBitmap.h>
29#include <SkCanvas.h>
30#include <SkMatrix.h>
31#include <SkPaint.h>
32#include <SkXfermode.h>
33
34#include <DeferredLayerUpdater.h>
35#include <LayerRenderer.h>
36#include <SkiaShader.h>
37#include <Rect.h>
38#include <RenderNode.h>
39
40namespace android {
41
42using namespace uirenderer;
43
44#ifdef USE_OPENGL_RENDERER
45
46static void android_view_HardwareLayer_onTextureDestroyed(JNIEnv* env, jobject clazz,
47        jlong layerUpdaterPtr) {
48    DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(layerUpdaterPtr);
49    layer->backingLayer()->clearTexture();
50}
51
52static jboolean android_view_HardwareLayer_prepare(JNIEnv* env, jobject clazz,
53        jlong layerUpdaterPtr, jint width, jint height, jboolean isOpaque) {
54    DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(layerUpdaterPtr);
55    bool changed = false;
56    changed |= layer->setSize(width, height);
57    changed |= layer->setBlend(!isOpaque);
58    return changed;
59}
60
61static void android_view_HardwareLayer_setLayerPaint(JNIEnv* env, jobject clazz,
62        jlong layerUpdaterPtr, jlong paintPtr) {
63    DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(layerUpdaterPtr);
64    if (layer) {
65        SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
66        layer->setPaint(paint);
67    }
68}
69
70static void android_view_HardwareLayer_setTransform(JNIEnv* env, jobject clazz,
71        jlong layerUpdaterPtr, jlong matrixPtr) {
72    DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(layerUpdaterPtr);
73    SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixPtr);
74    layer->setTransform(matrix);
75}
76
77static void android_view_HardwareLayer_setSurfaceTexture(JNIEnv* env, jobject clazz,
78        jlong layerUpdaterPtr, jobject surface, jboolean isAlreadyAttached) {
79    DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(layerUpdaterPtr);
80    sp<GLConsumer> surfaceTexture(SurfaceTexture_getSurfaceTexture(env, surface));
81    layer->setSurfaceTexture(surfaceTexture, !isAlreadyAttached);
82}
83
84static void android_view_HardwareLayer_updateSurfaceTexture(JNIEnv* env, jobject clazz,
85        jlong layerUpdaterPtr) {
86    DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(layerUpdaterPtr);
87    layer->updateTexImage();
88}
89
90static jlong android_view_HardwareLayer_getLayer(JNIEnv* env, jobject clazz,
91        jlong layerUpdaterPtr) {
92    DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(layerUpdaterPtr);
93    return reinterpret_cast<jlong>( layer->backingLayer() );
94}
95
96static jint android_view_HardwareLayer_getTexName(JNIEnv* env, jobject clazz,
97        jlong layerUpdaterPtr) {
98    DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(layerUpdaterPtr);
99    return layer->backingLayer()->getTexture();
100}
101
102#endif // USE_OPENGL_RENDERER
103
104// ----------------------------------------------------------------------------
105// JNI Glue
106// ----------------------------------------------------------------------------
107
108const char* const kClassPathName = "android/view/HardwareLayer";
109
110static JNINativeMethod gMethods[] = {
111#ifdef USE_OPENGL_RENDERER
112
113    { "nOnTextureDestroyed",     "(J)V",       (void*) android_view_HardwareLayer_onTextureDestroyed },
114
115    { "nPrepare",                "(JIIZ)Z",    (void*) android_view_HardwareLayer_prepare },
116    { "nSetLayerPaint",          "(JJ)V",      (void*) android_view_HardwareLayer_setLayerPaint },
117    { "nSetTransform",           "(JJ)V",      (void*) android_view_HardwareLayer_setTransform },
118    { "nSetSurfaceTexture",      "(JLandroid/graphics/SurfaceTexture;Z)V",
119            (void*) android_view_HardwareLayer_setSurfaceTexture },
120    { "nUpdateSurfaceTexture",   "(J)V",       (void*) android_view_HardwareLayer_updateSurfaceTexture },
121
122    { "nGetLayer",               "(J)J",       (void*) android_view_HardwareLayer_getLayer },
123    { "nGetTexName",             "(J)I",       (void*) android_view_HardwareLayer_getTexName },
124#endif
125};
126
127int register_android_view_HardwareLayer(JNIEnv* env) {
128    return AndroidRuntime::registerNativeMethods(env, kClassPathName, gMethods, NELEM(gMethods));
129}
130
131};
132