RenderProxy.cpp revision 8ca3eecc2b7fe507d3482745efc4cd2567ad15a1 
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        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(const sp<ANativeWindow>& window) {
93    SETUP_TASK(initialize);
94    args->context = mContext;
95    args->window = window.get();
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(const sp<ANativeWindow>& window) {
105    SETUP_TASK(updateSurface);
106    args->context = mContext;
107    args->window = window.get();
108    postAndWait(task);
109}
110
111CREATE_BRIDGE2(pauseSurface, CanvasContext* context, EGLNativeWindowType window) {
112    args->context->pauseSurface(args->window);
113    return NULL;
114}
115
116void RenderProxy::pauseSurface(const sp<ANativeWindow>& window) {
117    SETUP_TASK(pauseSurface);
118    args->context = mContext;
119    args->window = window.get();
120    postAndWait(task);
121}
122
123CREATE_BRIDGE3(setup, CanvasContext* context, int width, int height) {
124    args->context->setup(args->width, args->height);
125    return NULL;
126}
127
128void RenderProxy::setup(int width, int height) {
129    SETUP_TASK(setup);
130    args->context = mContext;
131    args->width = width;
132    args->height = height;
133    post(task);
134}
135
136void RenderProxy::drawDisplayList(RenderNode* displayList,
137        int dirtyLeft, int dirtyTop, int dirtyRight, int dirtyBottom) {
138    mDrawFrameTask.setRenderNode(displayList);
139    mDrawFrameTask.setDirty(dirtyLeft, dirtyTop, dirtyRight, dirtyBottom);
140    mDrawFrameTask.drawFrame(&mRenderThread);
141}
142
143CREATE_BRIDGE1(destroyCanvas, CanvasContext* context) {
144    args->context->destroyCanvas();
145    return NULL;
146}
147
148void RenderProxy::destroyCanvas() {
149    SETUP_TASK(destroyCanvas);
150    args->context = mContext;
151    post(task);
152}
153
154CREATE_BRIDGE2(attachFunctor, CanvasContext* context, Functor* functor) {
155    args->context->attachFunctor(args->functor);
156    return NULL;
157}
158
159void RenderProxy::attachFunctor(Functor* functor) {
160    SETUP_TASK(attachFunctor);
161    args->context = mContext;
162    args->functor = functor;
163    post(task);
164}
165
166CREATE_BRIDGE2(detachFunctor, CanvasContext* context, Functor* functor) {
167    args->context->detachFunctor(args->functor);
168    return NULL;
169}
170
171void RenderProxy::detachFunctor(Functor* functor) {
172    SETUP_TASK(detachFunctor);
173    args->context = mContext;
174    args->functor = functor;
175    post(task);
176}
177
178CREATE_BRIDGE2(invokeFunctor, CanvasContext* context, Functor* functor) {
179    args->context->invokeFunctor(args->functor);
180    return NULL;
181}
182
183void RenderProxy::invokeFunctor(Functor* functor, bool waitForCompletion) {
184    SETUP_TASK(invokeFunctor);
185    args->context = mContext;
186    args->functor = functor;
187    if (waitForCompletion) {
188        postAndWait(task);
189    } else {
190        post(task);
191    }
192}
193
194CREATE_BRIDGE2(runWithGlContext, CanvasContext* context, RenderTask* task) {
195    args->context->runWithGlContext(args->task);
196    return NULL;
197}
198
199void RenderProxy::runWithGlContext(RenderTask* gltask) {
200    SETUP_TASK(runWithGlContext);
201    args->context = mContext;
202    args->task = gltask;
203    postAndWait(task);
204}
205
206CREATE_BRIDGE3(createDisplayListLayer, CanvasContext* context, int width, int height) {
207    Layer* layer = args->context->createRenderLayer(args->width, args->height);
208    if (!layer) return 0;
209    return new DeferredLayerUpdater(layer);
210}
211
212DeferredLayerUpdater* RenderProxy::createDisplayListLayer(int width, int height) {
213    SETUP_TASK(createDisplayListLayer);
214    args->width = width;
215    args->height = height;
216    args->context = mContext;
217    void* retval = postAndWait(task);
218    DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(retval);
219    mDrawFrameTask.addLayer(layer);
220    return layer;
221}
222
223CREATE_BRIDGE1(createTextureLayer, CanvasContext* context) {
224    Layer* layer = args->context->createTextureLayer();
225    if (!layer) return 0;
226    return new DeferredLayerUpdater(layer);
227}
228
229DeferredLayerUpdater* RenderProxy::createTextureLayer() {
230    SETUP_TASK(createTextureLayer);
231    args->context = mContext;
232    void* retval = postAndWait(task);
233    DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(retval);
234    mDrawFrameTask.addLayer(layer);
235    return layer;
236}
237
238CREATE_BRIDGE1(destroyLayer, Layer* layer) {
239    LayerRenderer::destroyLayer(args->layer);
240    return NULL;
241}
242
243CREATE_BRIDGE3(copyLayerInto, CanvasContext* context, DeferredLayerUpdater* layer,
244        SkBitmap* bitmap) {
245    bool success = args->context->copyLayerInto(args->layer, args->bitmap);
246    return (void*) success;
247}
248
249bool RenderProxy::copyLayerInto(DeferredLayerUpdater* layer, SkBitmap* bitmap) {
250    SETUP_TASK(copyLayerInto);
251    args->context = mContext;
252    args->layer = layer;
253    args->bitmap = bitmap;
254    return (bool) postAndWait(task);
255}
256
257void RenderProxy::destroyLayer(DeferredLayerUpdater* layer) {
258    mDrawFrameTask.removeLayer(layer);
259    SETUP_TASK(destroyLayer);
260    args->layer = layer->detachBackingLayer();
261    post(task);
262}
263
264CREATE_BRIDGE0(fence) {
265    // Intentionally empty
266    return NULL;
267}
268
269void RenderProxy::fence() {
270    SETUP_TASK(fence);
271    postAndWait(task);
272}
273
274void RenderProxy::post(RenderTask* task) {
275    mRenderThread.queue(task);
276}
277
278void* RenderProxy::postAndWait(MethodInvokeRenderTask* task) {
279    void* retval;
280    task->setReturnPtr(&retval);
281    SignalingRenderTask syncTask(task, &mSyncMutex, &mSyncCondition);
282    AutoMutex _lock(mSyncMutex);
283    mRenderThread.queue(&syncTask);
284    mSyncCondition.wait(mSyncMutex);
285    return retval;
286}
287
288} /* namespace renderthread */
289} /* namespace uirenderer */
290} /* namespace android */
291