RenderProxy.cpp revision 1949e7928eeec22cd3f74b5f763a4eb433238453 
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_BRIDGE1(createContext, bool translucent) {
55    return new CanvasContext(args->translucent);
56}
57
58RenderProxy::RenderProxy(bool translucent)
59        : mRenderThread(RenderThread::getInstance())
60        , mContext(0) {
61    SETUP_TASK(createContext);
62    args->translucent = translucent;
63    mContext = (CanvasContext*) postAndWait(task);
64    mDrawFrameTask.setContext(mContext);
65}
66
67RenderProxy::~RenderProxy() {
68    destroyContext();
69}
70
71CREATE_BRIDGE1(destroyContext, CanvasContext* context) {
72    delete args->context;
73    return NULL;
74}
75
76void RenderProxy::destroyContext() {
77    if (mContext) {
78        // Flush any pending changes to ensure all garbage is destroyed
79        mDrawFrameTask.flushStateChanges(&mRenderThread);
80
81        SETUP_TASK(destroyContext);
82        args->context = mContext;
83        mContext = 0;
84        mDrawFrameTask.setContext(0);
85        // This is also a fence as we need to be certain that there are no
86        // outstanding mDrawFrame tasks posted before it is destroyed
87        postAndWait(task);
88    }
89}
90
91CREATE_BRIDGE2(initialize, CanvasContext* context, EGLNativeWindowType window) {
92    return (void*) args->context->initialize(args->window);
93}
94
95bool RenderProxy::initialize(EGLNativeWindowType window) {
96    SETUP_TASK(initialize);
97    args->context = mContext;
98    args->window = window;
99    return (bool) postAndWait(task);
100}
101
102CREATE_BRIDGE2(updateSurface, CanvasContext* context, EGLNativeWindowType window) {
103    args->context->updateSurface(args->window);
104    return NULL;
105}
106
107void RenderProxy::updateSurface(EGLNativeWindowType window) {
108    SETUP_TASK(updateSurface);
109    args->context = mContext;
110    args->window = window;
111    post(task);
112}
113
114CREATE_BRIDGE3(setup, CanvasContext* context, int width, int height) {
115    args->context->setup(args->width, args->height);
116    return NULL;
117}
118
119void RenderProxy::setup(int width, int height) {
120    SETUP_TASK(setup);
121    args->context = mContext;
122    args->width = width;
123    args->height = height;
124    post(task);
125}
126
127void RenderProxy::setDisplayListData(RenderNode* renderNode, DisplayListData* newData) {
128    mDrawFrameTask.setDisplayListData(renderNode, newData);
129}
130
131void RenderProxy::drawDisplayList(RenderNode* displayList,
132        int dirtyLeft, int dirtyTop, int dirtyRight, int dirtyBottom) {
133    mDrawFrameTask.setRenderNode(displayList);
134    mDrawFrameTask.setDirty(dirtyLeft, dirtyTop, dirtyRight, dirtyBottom);
135    mDrawFrameTask.drawFrame(&mRenderThread);
136}
137
138CREATE_BRIDGE1(destroyCanvas, CanvasContext* context) {
139    args->context->destroyCanvas();
140    return NULL;
141}
142
143void RenderProxy::destroyCanvas() {
144    // If the canvas is being destroyed we won't be drawing again anytime soon
145    // So flush any pending state changes to allow for resource cleanup.
146    mDrawFrameTask.flushStateChanges(&mRenderThread);
147
148    SETUP_TASK(destroyCanvas);
149    args->context = mContext;
150    post(task);
151}
152
153CREATE_BRIDGE2(attachFunctor, CanvasContext* context, Functor* functor) {
154    args->context->attachFunctor(args->functor);
155    return NULL;
156}
157
158void RenderProxy::attachFunctor(Functor* functor) {
159    SETUP_TASK(attachFunctor);
160    args->context = mContext;
161    args->functor = functor;
162    post(task);
163}
164
165CREATE_BRIDGE2(detachFunctor, CanvasContext* context, Functor* functor) {
166    args->context->detachFunctor(args->functor);
167    return NULL;
168}
169
170void RenderProxy::detachFunctor(Functor* functor) {
171    SETUP_TASK(detachFunctor);
172    args->context = mContext;
173    args->functor = functor;
174    post(task);
175}
176
177CREATE_BRIDGE2(invokeFunctor, CanvasContext* context, Functor* functor) {
178    args->context->invokeFunctor(args->functor);
179    return NULL;
180}
181
182void RenderProxy::invokeFunctor(Functor* functor, bool waitForCompletion) {
183    SETUP_TASK(invokeFunctor);
184    args->context = mContext;
185    args->functor = functor;
186    if (waitForCompletion) {
187        postAndWait(task);
188    } else {
189        post(task);
190    }
191}
192
193CREATE_BRIDGE2(runWithGlContext, CanvasContext* context, RenderTask* task) {
194    args->context->runWithGlContext(args->task);
195    return NULL;
196}
197
198void RenderProxy::runWithGlContext(RenderTask* gltask) {
199    SETUP_TASK(runWithGlContext);
200    args->context = mContext;
201    args->task = gltask;
202    postAndWait(task);
203}
204
205CREATE_BRIDGE3(createDisplayListLayer, CanvasContext* context, int width, int height) {
206    Layer* layer = args->context->createRenderLayer(args->width, args->height);
207    if (!layer) return 0;
208    return new DeferredLayerUpdater(layer);
209}
210
211DeferredLayerUpdater* RenderProxy::createDisplayListLayer(int width, int height) {
212    SETUP_TASK(createDisplayListLayer);
213    args->width = width;
214    args->height = height;
215    args->context = mContext;
216    void* retval = postAndWait(task);
217    DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(retval);
218    mDrawFrameTask.addLayer(layer);
219    return layer;
220}
221
222CREATE_BRIDGE1(createTextureLayer, CanvasContext* context) {
223    Layer* layer = args->context->createTextureLayer();
224    if (!layer) return 0;
225    return new DeferredLayerUpdater(layer);
226}
227
228DeferredLayerUpdater* RenderProxy::createTextureLayer() {
229    SETUP_TASK(createTextureLayer);
230    args->context = mContext;
231    void* retval = postAndWait(task);
232    DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(retval);
233    mDrawFrameTask.addLayer(layer);
234    return layer;
235}
236
237CREATE_BRIDGE1(destroyLayer, Layer* layer) {
238    LayerRenderer::destroyLayer(args->layer);
239    return NULL;
240}
241
242CREATE_BRIDGE3(copyLayerInto, CanvasContext* context, DeferredLayerUpdater* layer,
243        SkBitmap* bitmap) {
244    bool success = args->context->copyLayerInto(args->layer, args->bitmap);
245    return (void*) success;
246}
247
248bool RenderProxy::copyLayerInto(DeferredLayerUpdater* layer, SkBitmap* bitmap) {
249    SETUP_TASK(copyLayerInto);
250    args->context = mContext;
251    args->layer = layer;
252    args->bitmap = bitmap;
253    return (bool) postAndWait(task);
254}
255
256void RenderProxy::destroyLayer(DeferredLayerUpdater* layer) {
257    mDrawFrameTask.removeLayer(layer);
258    SETUP_TASK(destroyLayer);
259    args->layer = layer->detachBackingLayer();
260    post(task);
261}
262
263CREATE_BRIDGE0(fence) {
264    // Intentionally empty
265    return NULL;
266}
267
268void RenderProxy::fence() {
269    SETUP_TASK(fence);
270    postAndWait(task);
271}
272
273void RenderProxy::post(RenderTask* task) {
274    mRenderThread.queue(task);
275}
276
277void* RenderProxy::postAndWait(MethodInvokeRenderTask* task) {
278    void* retval;
279    task->setReturnPtr(&retval);
280    SignalingRenderTask syncTask(task, &mSyncMutex, &mSyncCondition);
281    AutoMutex _lock(mSyncMutex);
282    mRenderThread.queue(&syncTask);
283    mSyncCondition.wait(mSyncMutex);
284    return retval;
285}
286
287} /* namespace renderthread */
288} /* namespace uirenderer */
289} /* namespace android */
290