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 <Paint.h>
29#include <SkBitmap.h>
30#include <SkCanvas.h>
31#include <SkMatrix.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 jboolean android_view_HardwareLayer_prepare(JNIEnv* env, jobject clazz,
47        jlong layerUpdaterPtr, jint width, jint height, jboolean isOpaque) {
48    DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(layerUpdaterPtr);
49    bool changed = false;
50    changed |= layer->setSize(width, height);
51    changed |= layer->setBlend(!isOpaque);
52    return changed;
53}
54
55static void android_view_HardwareLayer_setLayerPaint(JNIEnv* env, jobject clazz,
56        jlong layerUpdaterPtr, jlong paintPtr) {
57    DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(layerUpdaterPtr);
58    if (layer) {
59        Paint* paint = reinterpret_cast<Paint*>(paintPtr);
60        layer->setPaint(paint);
61    }
62}
63
64static void android_view_HardwareLayer_setTransform(JNIEnv* env, jobject clazz,
65        jlong layerUpdaterPtr, jlong matrixPtr) {
66    DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(layerUpdaterPtr);
67    SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixPtr);
68    layer->setTransform(matrix);
69}
70
71static void android_view_HardwareLayer_setSurfaceTexture(JNIEnv* env, jobject clazz,
72        jlong layerUpdaterPtr, jobject surface, jboolean isAlreadyAttached) {
73    DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(layerUpdaterPtr);
74    sp<GLConsumer> surfaceTexture(SurfaceTexture_getSurfaceTexture(env, surface));
75    layer->setSurfaceTexture(surfaceTexture, !isAlreadyAttached);
76}
77
78static void android_view_HardwareLayer_updateSurfaceTexture(JNIEnv* env, jobject clazz,
79        jlong layerUpdaterPtr) {
80    DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(layerUpdaterPtr);
81    layer->updateTexImage();
82}
83
84static jint android_view_HardwareLayer_getTexName(JNIEnv* env, jobject clazz,
85        jlong layerUpdaterPtr) {
86    DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(layerUpdaterPtr);
87    return layer->backingLayer()->getTexture();
88}
89
90#endif // USE_OPENGL_RENDERER
91
92// ----------------------------------------------------------------------------
93// JNI Glue
94// ----------------------------------------------------------------------------
95
96const char* const kClassPathName = "android/view/HardwareLayer";
97
98static JNINativeMethod gMethods[] = {
99#ifdef USE_OPENGL_RENDERER
100
101    { "nPrepare",                "(JIIZ)Z",    (void*) android_view_HardwareLayer_prepare },
102    { "nSetLayerPaint",          "(JJ)V",      (void*) android_view_HardwareLayer_setLayerPaint },
103    { "nSetTransform",           "(JJ)V",      (void*) android_view_HardwareLayer_setTransform },
104    { "nSetSurfaceTexture",      "(JLandroid/graphics/SurfaceTexture;Z)V",
105            (void*) android_view_HardwareLayer_setSurfaceTexture },
106    { "nUpdateSurfaceTexture",   "(J)V",       (void*) android_view_HardwareLayer_updateSurfaceTexture },
107
108    { "nGetTexName",             "(J)I",       (void*) android_view_HardwareLayer_getTexName },
109#endif
110};
111
112int register_android_view_HardwareLayer(JNIEnv* env) {
113    return AndroidRuntime::registerNativeMethods(env, kClassPathName, gMethods, NELEM(gMethods));
114}
115
116};
117