Caches.cpp revision 6d7475d666baefaa3ba9f0dcee25238739454241 
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(...) LOGD(__VA_ARGS__)
41#else
42    #define FLUSH_LOGD(...)
43#endif
44
45///////////////////////////////////////////////////////////////////////////////
46// Constructors/destructor
47///////////////////////////////////////////////////////////////////////////////
48
49Caches::Caches(): Singleton<Caches>(), blend(false), lastSrcMode(GL_ZERO),
50        lastDstMode(GL_ZERO), currentProgram(NULL) {
51    GLint maxTextureUnits;
52    glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, &maxTextureUnits);
53    if (maxTextureUnits < REQUIRED_TEXTURE_UNITS_COUNT) {
54        LOGW("At least %d texture units are required!", REQUIRED_TEXTURE_UNITS_COUNT);
55    }
56
57    glGenBuffers(1, &meshBuffer);
58    glBindBuffer(GL_ARRAY_BUFFER, meshBuffer);
59    glBufferData(GL_ARRAY_BUFFER, sizeof(gMeshVertices), gMeshVertices, GL_STATIC_DRAW);
60
61    glGetIntegerv(GL_MAX_TEXTURE_SIZE, &maxTextureSize);
62
63    mCurrentBuffer = meshBuffer;
64    mRegionMesh = NULL;
65
66    mDebugLevel = readDebugLevel();
67    LOGD("Enabling debug mode %d", mDebugLevel);
68
69#if RENDER_LAYERS_AS_REGIONS
70    INIT_LOGD("Layers will be composited as regions");
71#endif
72}
73
74Caches::~Caches() {
75    delete[] mRegionMesh;
76}
77
78///////////////////////////////////////////////////////////////////////////////
79// Debug
80///////////////////////////////////////////////////////////////////////////////
81
82void Caches::dumpMemoryUsage() {
83    String8 stringLog;
84    dumpMemoryUsage(stringLog);
85    LOGD("%s", stringLog.string());
86}
87
88void Caches::dumpMemoryUsage(String8 &log) {
89    log.appendFormat("Current memory usage / total memory usage (bytes):\n");
90    log.appendFormat("  TextureCache         %8d / %8d\n",
91            textureCache.getSize(), textureCache.getMaxSize());
92    log.appendFormat("  LayerCache           %8d / %8d\n",
93            layerCache.getSize(), layerCache.getMaxSize());
94    log.appendFormat("  GradientCache        %8d / %8d\n",
95            gradientCache.getSize(), gradientCache.getMaxSize());
96    log.appendFormat("  PathCache            %8d / %8d\n",
97            pathCache.getSize(), pathCache.getMaxSize());
98    log.appendFormat("  CircleShapeCache     %8d / %8d\n",
99            circleShapeCache.getSize(), circleShapeCache.getMaxSize());
100    log.appendFormat("  OvalShapeCache       %8d / %8d\n",
101            ovalShapeCache.getSize(), ovalShapeCache.getMaxSize());
102    log.appendFormat("  RoundRectShapeCache  %8d / %8d\n",
103            roundRectShapeCache.getSize(), roundRectShapeCache.getMaxSize());
104    log.appendFormat("  RectShapeCache       %8d / %8d\n",
105            rectShapeCache.getSize(), rectShapeCache.getMaxSize());
106    log.appendFormat("  ArcShapeCache        %8d / %8d\n",
107            arcShapeCache.getSize(), arcShapeCache.getMaxSize());
108    log.appendFormat("  TextDropShadowCache  %8d / %8d\n", dropShadowCache.getSize(),
109            dropShadowCache.getMaxSize());
110    for (uint32_t i = 0; i < fontRenderer.getFontRendererCount(); i++) {
111        const uint32_t size = fontRenderer.getFontRendererSize(i);
112        log.appendFormat("  FontRenderer %d       %8d / %8d\n", i, size, size);
113    }
114    log.appendFormat("Other:\n");
115    log.appendFormat("  FboCache             %8d / %8d\n",
116            fboCache.getSize(), fboCache.getMaxSize());
117    log.appendFormat("  PatchCache           %8d / %8d\n",
118            patchCache.getSize(), patchCache.getMaxSize());
119
120    uint32_t total = 0;
121    total += textureCache.getSize();
122    total += layerCache.getSize();
123    total += gradientCache.getSize();
124    total += pathCache.getSize();
125    total += dropShadowCache.getSize();
126    total += roundRectShapeCache.getSize();
127    total += circleShapeCache.getSize();
128    total += ovalShapeCache.getSize();
129    total += rectShapeCache.getSize();
130    total += arcShapeCache.getSize();
131    for (uint32_t i = 0; i < fontRenderer.getFontRendererCount(); i++) {
132        total += fontRenderer.getFontRendererSize(i);
133    }
134
135    log.appendFormat("Total memory usage:\n");
136    log.appendFormat("  %d bytes, %.2f MB\n", total, total / 1024.0f / 1024.0f);
137}
138
139///////////////////////////////////////////////////////////////////////////////
140// Memory management
141///////////////////////////////////////////////////////////////////////////////
142
143void Caches::clearGarbage() {
144    textureCache.clearGarbage();
145    gradientCache.clearGarbage();
146    pathCache.clearGarbage();
147
148    Mutex::Autolock _l(mGarbageLock);
149
150    size_t count = mLayerGarbage.size();
151    for (size_t i = 0; i < count; i++) {
152        Layer* layer = mLayerGarbage.itemAt(i);
153        LayerRenderer::destroyLayer(layer);
154    }
155    mLayerGarbage.clear();
156}
157
158void Caches::deleteLayerDeferred(Layer* layer) {
159    Mutex::Autolock _l(mGarbageLock);
160    mLayerGarbage.push(layer);
161}
162
163void Caches::flush(FlushMode mode) {
164    FLUSH_LOGD("Flushing caches (mode %d)", mode);
165
166    clearGarbage();
167
168    switch (mode) {
169        case kFlushMode_Full:
170            textureCache.clear();
171            patchCache.clear();
172            dropShadowCache.clear();
173            gradientCache.clear();
174            // fall through
175        case kFlushMode_Moderate:
176            pathCache.clear();
177            roundRectShapeCache.clear();
178            circleShapeCache.clear();
179            ovalShapeCache.clear();
180            rectShapeCache.clear();
181            arcShapeCache.clear();
182            // fall through
183        case kFlushMode_Layers:
184            layerCache.clear();
185            break;
186    }
187}
188
189///////////////////////////////////////////////////////////////////////////////
190// VBO
191///////////////////////////////////////////////////////////////////////////////
192
193void Caches::bindMeshBuffer() {
194    bindMeshBuffer(meshBuffer);
195}
196
197void Caches::bindMeshBuffer(const GLuint buffer) {
198    if (mCurrentBuffer != buffer) {
199        glBindBuffer(GL_ARRAY_BUFFER, buffer);
200        mCurrentBuffer = buffer;
201    }
202}
203
204void Caches::unbindMeshBuffer() {
205    if (mCurrentBuffer) {
206        glBindBuffer(GL_ARRAY_BUFFER, 0);
207        mCurrentBuffer = 0;
208    }
209}
210
211TextureVertex* Caches::getRegionMesh() {
212    // Create the mesh, 2 triangles and 4 vertices per rectangle in the region
213    if (!mRegionMesh) {
214        mRegionMesh = new TextureVertex[REGION_MESH_QUAD_COUNT * 4];
215
216        uint16_t* regionIndices = new uint16_t[REGION_MESH_QUAD_COUNT * 6];
217        for (int i = 0; i < REGION_MESH_QUAD_COUNT; i++) {
218            uint16_t quad = i * 4;
219            int index = i * 6;
220            regionIndices[index    ] = quad;       // top-left
221            regionIndices[index + 1] = quad + 1;   // top-right
222            regionIndices[index + 2] = quad + 2;   // bottom-left
223            regionIndices[index + 3] = quad + 2;   // bottom-left
224            regionIndices[index + 4] = quad + 1;   // top-right
225            regionIndices[index + 5] = quad + 3;   // bottom-right
226        }
227
228        glGenBuffers(1, &mRegionMeshIndices);
229        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mRegionMeshIndices);
230        glBufferData(GL_ELEMENT_ARRAY_BUFFER, REGION_MESH_QUAD_COUNT * 6 * sizeof(uint16_t),
231                regionIndices, GL_STATIC_DRAW);
232
233        delete[] regionIndices;
234    } else {
235        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mRegionMeshIndices);
236    }
237
238    return mRegionMesh;
239}
240
241}; // namespace uirenderer
242}; // namespace android
243