Caches.cpp revision 1afd5bab4e0eaba8b5bc2ab5c7b556cd602cf2e7 
1/*
2 * Copyright (C) 2010 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 <utils/Log.h>
20#include <utils/String8.h>
21
22#include "Caches.h"
23#include "Properties.h"
24#include "LayerRenderer.h"
25
26namespace android {
27
28#ifdef USE_OPENGL_RENDERER
29using namespace uirenderer;
30ANDROID_SINGLETON_STATIC_INSTANCE(Caches);
31#endif
32
33namespace uirenderer {
34
35///////////////////////////////////////////////////////////////////////////////
36// Macros
37///////////////////////////////////////////////////////////////////////////////
38
39#if DEBUG_CACHE_FLUSH
40    #define FLUSH_LOGD(...) ALOGD(__VA_ARGS__)
41#else
42    #define FLUSH_LOGD(...)
43#endif
44
45///////////////////////////////////////////////////////////////////////////////
46// Constructors/destructor
47///////////////////////////////////////////////////////////////////////////////
48
49Caches::Caches(): Singleton<Caches>(), mInitialized(false) {
50    GLint maxTextureUnits;
51    glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, &maxTextureUnits);
52    if (maxTextureUnits < REQUIRED_TEXTURE_UNITS_COUNT) {
53        LOGW("At least %d texture units are required!", REQUIRED_TEXTURE_UNITS_COUNT);
54    }
55
56    glGetIntegerv(GL_MAX_TEXTURE_SIZE, &maxTextureSize);
57
58    init();
59
60    mDebugLevel = readDebugLevel();
61    ALOGD("Enabling debug mode %d", mDebugLevel);
62
63#if RENDER_LAYERS_AS_REGIONS
64    INIT_LOGD("Layers will be composited as regions");
65#endif
66}
67
68void Caches::init() {
69    if (mInitialized) return;
70
71    glGenBuffers(1, &meshBuffer);
72    glBindBuffer(GL_ARRAY_BUFFER, meshBuffer);
73    glBufferData(GL_ARRAY_BUFFER, sizeof(gMeshVertices), gMeshVertices, GL_STATIC_DRAW);
74
75    mCurrentBuffer = meshBuffer;
76    mRegionMesh = NULL;
77
78    blend = false;
79    lastSrcMode = GL_ZERO;
80    lastDstMode = GL_ZERO;
81    currentProgram = NULL;
82
83    mInitialized = true;
84}
85
86void Caches::terminate() {
87    if (!mInitialized) return;
88
89    glDeleteBuffers(1, &meshBuffer);
90    mCurrentBuffer = 0;
91
92    glDeleteBuffers(1, &mRegionMeshIndices);
93    delete[] mRegionMesh;
94    mRegionMesh = NULL;
95
96    fboCache.clear();
97
98    programCache.clear();
99    currentProgram = NULL;
100
101    mInitialized = false;
102}
103
104///////////////////////////////////////////////////////////////////////////////
105// Debug
106///////////////////////////////////////////////////////////////////////////////
107
108void Caches::dumpMemoryUsage() {
109    String8 stringLog;
110    dumpMemoryUsage(stringLog);
111    ALOGD("%s", stringLog.string());
112}
113
114void Caches::dumpMemoryUsage(String8 &log) {
115    log.appendFormat("Current memory usage / total memory usage (bytes):\n");
116    log.appendFormat("  TextureCache         %8d / %8d\n",
117            textureCache.getSize(), textureCache.getMaxSize());
118    log.appendFormat("  LayerCache           %8d / %8d\n",
119            layerCache.getSize(), layerCache.getMaxSize());
120    log.appendFormat("  GradientCache        %8d / %8d\n",
121            gradientCache.getSize(), gradientCache.getMaxSize());
122    log.appendFormat("  PathCache            %8d / %8d\n",
123            pathCache.getSize(), pathCache.getMaxSize());
124    log.appendFormat("  CircleShapeCache     %8d / %8d\n",
125            circleShapeCache.getSize(), circleShapeCache.getMaxSize());
126    log.appendFormat("  OvalShapeCache       %8d / %8d\n",
127            ovalShapeCache.getSize(), ovalShapeCache.getMaxSize());
128    log.appendFormat("  RoundRectShapeCache  %8d / %8d\n",
129            roundRectShapeCache.getSize(), roundRectShapeCache.getMaxSize());
130    log.appendFormat("  RectShapeCache       %8d / %8d\n",
131            rectShapeCache.getSize(), rectShapeCache.getMaxSize());
132    log.appendFormat("  ArcShapeCache        %8d / %8d\n",
133            arcShapeCache.getSize(), arcShapeCache.getMaxSize());
134    log.appendFormat("  TextDropShadowCache  %8d / %8d\n", dropShadowCache.getSize(),
135            dropShadowCache.getMaxSize());
136    for (uint32_t i = 0; i < fontRenderer.getFontRendererCount(); i++) {
137        const uint32_t size = fontRenderer.getFontRendererSize(i);
138        log.appendFormat("  FontRenderer %d       %8d / %8d\n", i, size, size);
139    }
140    log.appendFormat("Other:\n");
141    log.appendFormat("  FboCache             %8d / %8d\n",
142            fboCache.getSize(), fboCache.getMaxSize());
143    log.appendFormat("  PatchCache           %8d / %8d\n",
144            patchCache.getSize(), patchCache.getMaxSize());
145
146    uint32_t total = 0;
147    total += textureCache.getSize();
148    total += layerCache.getSize();
149    total += gradientCache.getSize();
150    total += pathCache.getSize();
151    total += dropShadowCache.getSize();
152    total += roundRectShapeCache.getSize();
153    total += circleShapeCache.getSize();
154    total += ovalShapeCache.getSize();
155    total += rectShapeCache.getSize();
156    total += arcShapeCache.getSize();
157    for (uint32_t i = 0; i < fontRenderer.getFontRendererCount(); i++) {
158        total += fontRenderer.getFontRendererSize(i);
159    }
160
161    log.appendFormat("Total memory usage:\n");
162    log.appendFormat("  %d bytes, %.2f MB\n", total, total / 1024.0f / 1024.0f);
163}
164
165///////////////////////////////////////////////////////////////////////////////
166// Memory management
167///////////////////////////////////////////////////////////////////////////////
168
169void Caches::clearGarbage() {
170    textureCache.clearGarbage();
171    pathCache.clearGarbage();
172
173    Mutex::Autolock _l(mGarbageLock);
174
175    size_t count = mLayerGarbage.size();
176    for (size_t i = 0; i < count; i++) {
177        Layer* layer = mLayerGarbage.itemAt(i);
178        LayerRenderer::destroyLayer(layer);
179    }
180    mLayerGarbage.clear();
181}
182
183void Caches::deleteLayerDeferred(Layer* layer) {
184    Mutex::Autolock _l(mGarbageLock);
185    mLayerGarbage.push(layer);
186}
187
188void Caches::flush(FlushMode mode) {
189    FLUSH_LOGD("Flushing caches (mode %d)", mode);
190
191    clearGarbage();
192
193    switch (mode) {
194        case kFlushMode_Full:
195            textureCache.clear();
196            patchCache.clear();
197            dropShadowCache.clear();
198            gradientCache.clear();
199            fontRenderer.clear();
200            // fall through
201        case kFlushMode_Moderate:
202            fontRenderer.flush();
203            textureCache.flush();
204            pathCache.clear();
205            roundRectShapeCache.clear();
206            circleShapeCache.clear();
207            ovalShapeCache.clear();
208            rectShapeCache.clear();
209            arcShapeCache.clear();
210            // fall through
211        case kFlushMode_Layers:
212            layerCache.clear();
213            break;
214    }
215}
216
217///////////////////////////////////////////////////////////////////////////////
218// VBO
219///////////////////////////////////////////////////////////////////////////////
220
221void Caches::bindMeshBuffer() {
222    bindMeshBuffer(meshBuffer);
223}
224
225void Caches::bindMeshBuffer(const GLuint buffer) {
226    if (mCurrentBuffer != buffer) {
227        glBindBuffer(GL_ARRAY_BUFFER, buffer);
228        mCurrentBuffer = buffer;
229    }
230}
231
232void Caches::unbindMeshBuffer() {
233    if (mCurrentBuffer) {
234        glBindBuffer(GL_ARRAY_BUFFER, 0);
235        mCurrentBuffer = 0;
236    }
237}
238
239TextureVertex* Caches::getRegionMesh() {
240    // Create the mesh, 2 triangles and 4 vertices per rectangle in the region
241    if (!mRegionMesh) {
242        mRegionMesh = new TextureVertex[REGION_MESH_QUAD_COUNT * 4];
243
244        uint16_t* regionIndices = new uint16_t[REGION_MESH_QUAD_COUNT * 6];
245        for (int i = 0; i < REGION_MESH_QUAD_COUNT; i++) {
246            uint16_t quad = i * 4;
247            int index = i * 6;
248            regionIndices[index    ] = quad;       // top-left
249            regionIndices[index + 1] = quad + 1;   // top-right
250            regionIndices[index + 2] = quad + 2;   // bottom-left
251            regionIndices[index + 3] = quad + 2;   // bottom-left
252            regionIndices[index + 4] = quad + 1;   // top-right
253            regionIndices[index + 5] = quad + 3;   // bottom-right
254        }
255
256        glGenBuffers(1, &mRegionMeshIndices);
257        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mRegionMeshIndices);
258        glBufferData(GL_ELEMENT_ARRAY_BUFFER, REGION_MESH_QUAD_COUNT * 6 * sizeof(uint16_t),
259                regionIndices, GL_STATIC_DRAW);
260
261        delete[] regionIndices;
262    } else {
263        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mRegionMeshIndices);
264    }
265
266    return mRegionMesh;
267}
268
269}; // namespace uirenderer
270}; // namespace android
271