Caches.cpp revision 02ccac69fd1c0a03c24c5f3ace0ad4bed337b1fd 
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// Constructors/destructor
37///////////////////////////////////////////////////////////////////////////////
38
39Caches::Caches(): Singleton<Caches>(), blend(false), lastSrcMode(GL_ZERO),
40        lastDstMode(GL_ZERO), currentProgram(NULL) {
41    GLint maxTextureUnits;
42    glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, &maxTextureUnits);
43    if (maxTextureUnits < REQUIRED_TEXTURE_UNITS_COUNT) {
44        LOGW("At least %d texture units are required!", REQUIRED_TEXTURE_UNITS_COUNT);
45    }
46
47    glGenBuffers(1, &meshBuffer);
48    glBindBuffer(GL_ARRAY_BUFFER, meshBuffer);
49    glBufferData(GL_ARRAY_BUFFER, sizeof(gMeshVertices), gMeshVertices, GL_STATIC_DRAW);
50
51    glGetIntegerv(GL_MAX_TEXTURE_SIZE, &maxTextureSize);
52
53    mCurrentBuffer = meshBuffer;
54    mRegionMesh = NULL;
55
56    mDebugLevel = readDebugLevel();
57    LOGD("Enabling debug mode %d", mDebugLevel);
58
59#if RENDER_LAYERS_AS_REGIONS
60    INIT_LOGD("Layers will be composited as regions");
61#endif
62}
63
64Caches::~Caches() {
65    delete[] mRegionMesh;
66}
67
68///////////////////////////////////////////////////////////////////////////////
69// Debug
70///////////////////////////////////////////////////////////////////////////////
71
72void Caches::dumpMemoryUsage() {
73    String8 stringLog;
74    dumpMemoryUsage(stringLog);
75    LOGD("%s", stringLog.string());
76    delete stringLog;
77}
78
79void Caches::dumpMemoryUsage(String8 &log) {
80    log.appendFormat("Current memory usage / total memory usage (bytes):\n");
81    log.appendFormat("  TextureCache         %8d / %8d\n",
82            textureCache.getSize(), textureCache.getMaxSize());
83    log.appendFormat("  LayerCache           %8d / %8d\n",
84            layerCache.getSize(), layerCache.getMaxSize());
85    log.appendFormat("  GradientCache        %8d / %8d\n",
86            gradientCache.getSize(), gradientCache.getMaxSize());
87    log.appendFormat("  PathCache            %8d / %8d\n",
88            pathCache.getSize(), pathCache.getMaxSize());
89    log.appendFormat("  CircleShapeCache     %8d / %8d\n",
90            circleShapeCache.getSize(), circleShapeCache.getMaxSize());
91    log.appendFormat("  OvalShapeCache       %8d / %8d\n",
92            ovalShapeCache.getSize(), ovalShapeCache.getMaxSize());
93    log.appendFormat("  RoundRectShapeCache  %8d / %8d\n",
94            roundRectShapeCache.getSize(), roundRectShapeCache.getMaxSize());
95    log.appendFormat("  RectShapeCache       %8d / %8d\n",
96            rectShapeCache.getSize(), rectShapeCache.getMaxSize());
97    log.appendFormat("  ArcShapeCache        %8d / %8d\n",
98            arcShapeCache.getSize(), arcShapeCache.getMaxSize());
99    log.appendFormat("  TextDropShadowCache  %8d / %8d\n", dropShadowCache.getSize(),
100            dropShadowCache.getMaxSize());
101    for (uint32_t i = 0; i < fontRenderer.getFontRendererCount(); i++) {
102        const uint32_t size = fontRenderer.getFontRendererSize(i);
103        log.appendFormat("  FontRenderer %d       %8d / %8d\n", i, size, size);
104    }
105    log.appendFormat("Other:\n");
106    log.appendFormat("  FboCache             %8d / %8d\n",
107            fboCache.getSize(), fboCache.getMaxSize());
108    log.appendFormat("  PatchCache           %8d / %8d\n",
109            patchCache.getSize(), patchCache.getMaxSize());
110
111    uint32_t total = 0;
112    total += textureCache.getSize();
113    total += layerCache.getSize();
114    total += gradientCache.getSize();
115    total += pathCache.getSize();
116    total += dropShadowCache.getSize();
117    total += roundRectShapeCache.getSize();
118    total += circleShapeCache.getSize();
119    total += ovalShapeCache.getSize();
120    total += rectShapeCache.getSize();
121    total += arcShapeCache.getSize();
122    for (uint32_t i = 0; i < fontRenderer.getFontRendererCount(); i++) {
123        total += fontRenderer.getFontRendererSize(i);
124    }
125
126    log.appendFormat("Total memory usage:\n");
127    log.appendFormat("  %d bytes, %.2f MB\n", total, total / 1024.0f / 1024.0f);
128}
129
130///////////////////////////////////////////////////////////////////////////////
131// Memory management
132///////////////////////////////////////////////////////////////////////////////
133
134void Caches::clearGarbage() {
135    textureCache.clearGarbage();
136    gradientCache.clearGarbage();
137    pathCache.clearGarbage();
138
139    Mutex::Autolock _l(mGarbageLock);
140
141    size_t count = mLayerGarbage.size();
142    for (size_t i = 0; i < count; i++) {
143        Layer* layer = mLayerGarbage.itemAt(i);
144        LayerRenderer::destroyLayer(layer);
145    }
146    mLayerGarbage.clear();
147}
148
149void Caches::deleteLayerDeferred(Layer* layer) {
150    Mutex::Autolock _l(mGarbageLock);
151    mLayerGarbage.push(layer);
152}
153
154///////////////////////////////////////////////////////////////////////////////
155// VBO
156///////////////////////////////////////////////////////////////////////////////
157
158void Caches::bindMeshBuffer() {
159    bindMeshBuffer(meshBuffer);
160}
161
162void Caches::bindMeshBuffer(const GLuint buffer) {
163    if (mCurrentBuffer != buffer) {
164        glBindBuffer(GL_ARRAY_BUFFER, buffer);
165        mCurrentBuffer = buffer;
166    }
167}
168
169void Caches::unbindMeshBuffer() {
170    if (mCurrentBuffer) {
171        glBindBuffer(GL_ARRAY_BUFFER, 0);
172        mCurrentBuffer = 0;
173    }
174}
175
176TextureVertex* Caches::getRegionMesh() {
177    // Create the mesh, 2 triangles and 4 vertices per rectangle in the region
178    if (!mRegionMesh) {
179        mRegionMesh = new TextureVertex[REGION_MESH_QUAD_COUNT * 4];
180
181        uint16_t* regionIndices = new uint16_t[REGION_MESH_QUAD_COUNT * 6];
182        for (int i = 0; i < REGION_MESH_QUAD_COUNT; i++) {
183            uint16_t quad = i * 4;
184            int index = i * 6;
185            regionIndices[index    ] = quad;       // top-left
186            regionIndices[index + 1] = quad + 1;   // top-right
187            regionIndices[index + 2] = quad + 2;   // bottom-left
188            regionIndices[index + 3] = quad + 2;   // bottom-left
189            regionIndices[index + 4] = quad + 1;   // top-right
190            regionIndices[index + 5] = quad + 3;   // bottom-right
191        }
192
193        glGenBuffers(1, &mRegionMeshIndices);
194        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mRegionMeshIndices);
195        glBufferData(GL_ELEMENT_ARRAY_BUFFER, REGION_MESH_QUAD_COUNT * 6 * sizeof(uint16_t),
196                regionIndices, GL_STATIC_DRAW);
197
198        delete[] regionIndices;
199    } else {
200        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mRegionMeshIndices);
201    }
202
203    return mRegionMesh;
204}
205
206}; // namespace uirenderer
207}; // namespace android
208