RenderProxy.cpp revision 28ad7b52e038ef0cdd89f753d9839444a434b299 
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 = createTask((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        SETUP_TASK(destroyContext);
79        args->context = mContext;
80        mContext = 0;
81        mDrawFrameTask.setContext(0);
82        // This is also a fence as we need to be certain that there are no
83        // outstanding mDrawFrame tasks posted before it is destroyed
84        postAndWait(task);
85    }
86}
87
88CREATE_BRIDGE2(initialize, CanvasContext* context, EGLNativeWindowType window) {
89    return (void*) args->context->initialize(args->window);
90}
91
92bool RenderProxy::initialize(EGLNativeWindowType window) {
93    SETUP_TASK(initialize);
94    args->context = mContext;
95    args->window = window;
96    return (bool) postAndWait(task);
97}
98
99CREATE_BRIDGE2(updateSurface, CanvasContext* context, EGLNativeWindowType window) {
100    args->context->updateSurface(args->window);
101    return NULL;
102}
103
104void RenderProxy::updateSurface(EGLNativeWindowType window) {
105    SETUP_TASK(updateSurface);
106    args->context = mContext;
107    args->window = window;
108    post(task);
109}
110
111CREATE_BRIDGE3(setup, CanvasContext* context, int width, int height) {
112    args->context->setup(args->width, args->height);
113    return NULL;
114}
115
116void RenderProxy::setup(int width, int height) {
117    SETUP_TASK(setup);
118    args->context = mContext;
119    args->width = width;
120    args->height = height;
121    post(task);
122}
123
124void RenderProxy::setDisplayListData(RenderNode* renderNode, DisplayListData* newData) {
125    mDrawFrameTask.setDisplayListData(renderNode, newData);
126}
127
128void RenderProxy::drawDisplayList(RenderNode* displayList,
129        int dirtyLeft, int dirtyTop, int dirtyRight, int dirtyBottom) {
130    mDrawFrameTask.setRenderNode(displayList);
131    mDrawFrameTask.setDirty(dirtyLeft, dirtyTop, dirtyRight, dirtyBottom);
132    mDrawFrameTask.drawFrame(&mRenderThread);
133}
134
135CREATE_BRIDGE1(destroyCanvas, CanvasContext* context) {
136    args->context->destroyCanvas();
137    return NULL;
138}
139
140void RenderProxy::destroyCanvas() {
141    SETUP_TASK(destroyCanvas);
142    args->context = mContext;
143    post(task);
144}
145
146CREATE_BRIDGE2(attachFunctor, CanvasContext* context, Functor* functor) {
147    args->context->attachFunctor(args->functor);
148    return NULL;
149}
150
151void RenderProxy::attachFunctor(Functor* functor) {
152    SETUP_TASK(attachFunctor);
153    args->context = mContext;
154    args->functor = functor;
155    post(task);
156}
157
158CREATE_BRIDGE2(detachFunctor, CanvasContext* context, Functor* functor) {
159    args->context->detachFunctor(args->functor);
160    return NULL;
161}
162
163void RenderProxy::detachFunctor(Functor* functor) {
164    SETUP_TASK(detachFunctor);
165    args->context = mContext;
166    args->functor = functor;
167    post(task);
168}
169
170CREATE_BRIDGE2(invokeFunctor, CanvasContext* context, Functor* functor) {
171    args->context->invokeFunctor(args->functor);
172    return NULL;
173}
174
175void RenderProxy::invokeFunctor(Functor* functor, bool waitForCompletion) {
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_BRIDGE2(createDisplayListLayer, int width, int height) {
199    Layer* layer = LayerRenderer::createRenderLayer(args->width, args->height);
200    if (!layer) return 0;
201
202    return new DeferredLayerUpdater(layer);
203}
204
205DeferredLayerUpdater* RenderProxy::createDisplayListLayer(int width, int height) {
206    SETUP_TASK(createDisplayListLayer);
207    args->width = width;
208    args->height = height;
209    void* retval = postAndWait(task);
210    DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(retval);
211    mDrawFrameTask.addLayer(layer);
212    return layer;
213}
214
215CREATE_BRIDGE0(createTextureLayer) {
216    Layer* layer = LayerRenderer::createTextureLayer();
217    if (!layer) return 0;
218    return new DeferredLayerUpdater(layer);
219}
220
221DeferredLayerUpdater* RenderProxy::createTextureLayer() {
222    SETUP_TASK(createTextureLayer);
223    void* retval = postAndWait(task);
224    DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(retval);
225    mDrawFrameTask.addLayer(layer);
226    return layer;
227}
228
229CREATE_BRIDGE1(destroyLayer, Layer* layer) {
230    LayerRenderer::destroyLayer(args->layer);
231    return NULL;
232}
233
234CREATE_BRIDGE3(copyLayerInto, CanvasContext* context, DeferredLayerUpdater* layer,
235        SkBitmap* bitmap) {
236    bool success = args->context->copyLayerInto(args->layer, args->bitmap);
237    return (void*) success;
238}
239
240bool RenderProxy::copyLayerInto(DeferredLayerUpdater* layer, SkBitmap* bitmap) {
241    SETUP_TASK(copyLayerInto);
242    args->context = mContext;
243    args->layer = layer;
244    args->bitmap = bitmap;
245    return (bool) postAndWait(task);
246}
247
248void RenderProxy::destroyLayer(DeferredLayerUpdater* layer) {
249    mDrawFrameTask.removeLayer(layer);
250    SETUP_TASK(destroyLayer);
251    args->layer = layer->detachBackingLayer();
252    post(task);
253}
254
255CREATE_BRIDGE0(fence) {
256    // Intentionally empty
257    return NULL;
258}
259
260void RenderProxy::fence() {
261    SETUP_TASK(fence);
262    postAndWait(task);
263}
264
265MethodInvokeRenderTask* RenderProxy::createTask(RunnableMethod method) {
266    // TODO: Consider having a small pool of these to avoid alloc churn
267    return new MethodInvokeRenderTask(method);
268}
269
270void RenderProxy::post(RenderTask* task) {
271    mRenderThread.queue(task);
272}
273
274void* RenderProxy::postAndWait(MethodInvokeRenderTask* task) {
275    void* retval;
276    task->setReturnPtr(&retval);
277    SignalingRenderTask syncTask(task, &mSyncMutex, &mSyncCondition);
278    AutoMutex _lock(mSyncMutex);
279    mRenderThread.queue(&syncTask);
280    mSyncCondition.wait(mSyncMutex);
281    return retval;
282}
283
284} /* namespace renderthread */
285} /* namespace uirenderer */
286} /* namespace android */
287