RenderProxy.cpp revision f9be77940e365036fecd8cc0e491e8545c34e79b 
1/*
2 * Copyright (C) 2013 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 "RenderProxy"
18
19#include "RenderProxy.h"
20
21#include "CanvasContext.h"
22#include "RenderTask.h"
23#include "RenderThread.h"
24
25#include "../DeferredLayerUpdater.h"
26#include "../DisplayList.h"
27#include "../LayerRenderer.h"
28#include "../Rect.h"
29
30namespace android {
31namespace uirenderer {
32namespace renderthread {
33
34#define ARGS(method) method ## Args
35
36#define CREATE_BRIDGE0(name) CREATE_BRIDGE(name,,,,,,,,)
37#define CREATE_BRIDGE1(name, a1) CREATE_BRIDGE(name, a1,,,,,,,)
38#define CREATE_BRIDGE2(name, a1, a2) CREATE_BRIDGE(name, a1,a2,,,,,,)
39#define CREATE_BRIDGE3(name, a1, a2, a3) CREATE_BRIDGE(name, a1,a2,a3,,,,,)
40#define CREATE_BRIDGE4(name, a1, a2, a3, a4) CREATE_BRIDGE(name, a1,a2,a3,a4,,,,)
41#define CREATE_BRIDGE(name, a1, a2, a3, a4, a5, a6, a7, a8) \
42    typedef struct { \
43        a1; a2; a3; a4; a5; a6; a7; a8; \
44    } ARGS(name); \
45    static void* Bridge_ ## name(ARGS(name)* args)
46
47#define SETUP_TASK(method) \
48    LOG_ALWAYS_FATAL_IF( METHOD_INVOKE_PAYLOAD_SIZE < sizeof(ARGS(method)), \
49        "METHOD_INVOKE_PAYLOAD_SIZE %d is smaller than sizeof(" #method "Args) %d", \
50                METHOD_INVOKE_PAYLOAD_SIZE, sizeof(ARGS(method))); \
51    MethodInvokeRenderTask* task = new MethodInvokeRenderTask((RunnableMethod) Bridge_ ## method); \
52    ARGS(method) *args = (ARGS(method) *) task->payload()
53
54CREATE_BRIDGE2(createContext, bool translucent, RenderNode* rootRenderNode) {
55    return new CanvasContext(args->translucent, args->rootRenderNode);
56}
57
58RenderProxy::RenderProxy(bool translucent, RenderNode* rootRenderNode)
59        : mRenderThread(RenderThread::getInstance())
60        , mContext(0) {
61    SETUP_TASK(createContext);
62    args->translucent = translucent;
63    args->rootRenderNode = rootRenderNode;
64    mContext = (CanvasContext*) postAndWait(task);
65    mDrawFrameTask.setContext(&mRenderThread, mContext);
66}
67
68RenderProxy::~RenderProxy() {
69    destroyContext();
70}
71
72CREATE_BRIDGE1(destroyContext, CanvasContext* context) {
73    delete args->context;
74    return NULL;
75}
76
77void RenderProxy::destroyContext() {
78    if (mContext) {
79        SETUP_TASK(destroyContext);
80        args->context = mContext;
81        mContext = 0;
82        mDrawFrameTask.setContext(NULL, NULL);
83        // This is also a fence as we need to be certain that there are no
84        // outstanding mDrawFrame tasks posted before it is destroyed
85        postAndWait(task);
86    }
87}
88
89CREATE_BRIDGE2(setFrameInterval, RenderThread* thread, nsecs_t frameIntervalNanos) {
90    args->thread->timeLord().setFrameInterval(args->frameIntervalNanos);
91    return NULL;
92}
93
94void RenderProxy::setFrameInterval(nsecs_t frameIntervalNanos) {
95    SETUP_TASK(setFrameInterval);
96    args->thread = &mRenderThread;
97    args->frameIntervalNanos = frameIntervalNanos;
98    post(task);
99}
100
101CREATE_BRIDGE2(initialize, CanvasContext* context, EGLNativeWindowType window) {
102    return (void*) args->context->initialize(args->window);
103}
104
105bool RenderProxy::initialize(const sp<ANativeWindow>& window) {
106    SETUP_TASK(initialize);
107    args->context = mContext;
108    args->window = window.get();
109    return (bool) postAndWait(task);
110}
111
112CREATE_BRIDGE2(updateSurface, CanvasContext* context, EGLNativeWindowType window) {
113    args->context->updateSurface(args->window);
114    return NULL;
115}
116
117void RenderProxy::updateSurface(const sp<ANativeWindow>& window) {
118    SETUP_TASK(updateSurface);
119    args->context = mContext;
120    args->window = window.get();
121    postAndWait(task);
122}
123
124CREATE_BRIDGE2(pauseSurface, CanvasContext* context, EGLNativeWindowType window) {
125    args->context->pauseSurface(args->window);
126    return NULL;
127}
128
129void RenderProxy::pauseSurface(const sp<ANativeWindow>& window) {
130    SETUP_TASK(pauseSurface);
131    args->context = mContext;
132    args->window = window.get();
133    postAndWait(task);
134}
135
136CREATE_BRIDGE3(setup, CanvasContext* context, int width, int height) {
137    args->context->setup(args->width, args->height);
138    return NULL;
139}
140
141void RenderProxy::setup(int width, int height) {
142    SETUP_TASK(setup);
143    args->context = mContext;
144    args->width = width;
145    args->height = height;
146    post(task);
147}
148
149int RenderProxy::syncAndDrawFrame(nsecs_t frameTimeNanos,
150        int dirtyLeft, int dirtyTop, int dirtyRight, int dirtyBottom) {
151    mDrawFrameTask.setDirty(dirtyLeft, dirtyTop, dirtyRight, dirtyBottom);
152    return mDrawFrameTask.drawFrame(frameTimeNanos);
153}
154
155CREATE_BRIDGE1(destroyCanvasAndSurface, CanvasContext* context) {
156    args->context->destroyCanvasAndSurface();
157    return NULL;
158}
159
160void RenderProxy::destroyCanvasAndSurface() {
161    SETUP_TASK(destroyCanvasAndSurface);
162    args->context = mContext;
163    // destroyCanvasAndSurface() needs a fence as when it returns the
164    // underlying BufferQueue is going to be released from under
165    // the render thread.
166    postAndWait(task);
167}
168
169CREATE_BRIDGE2(invokeFunctor, CanvasContext* context, Functor* functor) {
170    args->context->invokeFunctor(args->functor);
171    return NULL;
172}
173
174void RenderProxy::invokeFunctor(Functor* functor, bool waitForCompletion) {
175    ATRACE_CALL();
176    SETUP_TASK(invokeFunctor);
177    args->context = mContext;
178    args->functor = functor;
179    if (waitForCompletion) {
180        postAndWait(task);
181    } else {
182        post(task);
183    }
184}
185
186CREATE_BRIDGE2(runWithGlContext, CanvasContext* context, RenderTask* task) {
187    args->context->runWithGlContext(args->task);
188    return NULL;
189}
190
191void RenderProxy::runWithGlContext(RenderTask* gltask) {
192    SETUP_TASK(runWithGlContext);
193    args->context = mContext;
194    args->task = gltask;
195    postAndWait(task);
196}
197
198CREATE_BRIDGE3(createDisplayListLayer, CanvasContext* context, int width, int height) {
199    Layer* layer = args->context->createRenderLayer(args->width, args->height);
200    if (!layer) return 0;
201    return new DeferredLayerUpdater(layer);
202}
203
204DeferredLayerUpdater* RenderProxy::createDisplayListLayer(int width, int height) {
205    SETUP_TASK(createDisplayListLayer);
206    args->width = width;
207    args->height = height;
208    args->context = mContext;
209    void* retval = postAndWait(task);
210    DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(retval);
211    mDrawFrameTask.addLayer(layer);
212    return layer;
213}
214
215CREATE_BRIDGE1(createTextureLayer, CanvasContext* context) {
216    Layer* layer = args->context->createTextureLayer();
217    if (!layer) return 0;
218    return new DeferredLayerUpdater(layer);
219}
220
221DeferredLayerUpdater* RenderProxy::createTextureLayer() {
222    SETUP_TASK(createTextureLayer);
223    args->context = mContext;
224    void* retval = postAndWait(task);
225    DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(retval);
226    mDrawFrameTask.addLayer(layer);
227    return layer;
228}
229
230CREATE_BRIDGE1(destroyLayer, Layer* layer) {
231    LayerRenderer::destroyLayer(args->layer);
232    return NULL;
233}
234
235CREATE_BRIDGE3(copyLayerInto, CanvasContext* context, DeferredLayerUpdater* layer,
236        SkBitmap* bitmap) {
237    bool success = args->context->copyLayerInto(args->layer, args->bitmap);
238    return (void*) success;
239}
240
241bool RenderProxy::copyLayerInto(DeferredLayerUpdater* layer, SkBitmap* bitmap) {
242    SETUP_TASK(copyLayerInto);
243    args->context = mContext;
244    args->layer = layer;
245    args->bitmap = bitmap;
246    return (bool) postAndWait(task);
247}
248
249void RenderProxy::destroyLayer(DeferredLayerUpdater* layer) {
250    mDrawFrameTask.removeLayer(layer);
251    SETUP_TASK(destroyLayer);
252    args->layer = layer->detachBackingLayer();
253    post(task);
254}
255
256CREATE_BRIDGE0(fence) {
257    // Intentionally empty
258    return NULL;
259}
260
261void RenderProxy::fence() {
262    SETUP_TASK(fence);
263    postAndWait(task);
264}
265
266void RenderProxy::post(RenderTask* task) {
267    mRenderThread.queue(task);
268}
269
270void* RenderProxy::postAndWait(MethodInvokeRenderTask* task) {
271    void* retval;
272    task->setReturnPtr(&retval);
273    SignalingRenderTask syncTask(task, &mSyncMutex, &mSyncCondition);
274    AutoMutex _lock(mSyncMutex);
275    mRenderThread.queue(&syncTask);
276    mSyncCondition.wait(mSyncMutex);
277    return retval;
278}
279
280} /* namespace renderthread */
281} /* namespace uirenderer */
282} /* namespace android */
283