Caches.cpp revision 2fc941e4650d618ff6e122f28b616d9032ffa134 
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
21#include "Caches.h"
22#include "Properties.h"
23#include "LayerRenderer.h"
24
25namespace android {
26
27#ifdef USE_OPENGL_RENDERER
28using namespace uirenderer;
29ANDROID_SINGLETON_STATIC_INSTANCE(Caches);
30#endif
31
32namespace uirenderer {
33
34///////////////////////////////////////////////////////////////////////////////
35// Constructors/destructor
36///////////////////////////////////////////////////////////////////////////////
37
38Caches::Caches(): Singleton<Caches>(), blend(false), lastSrcMode(GL_ZERO),
39        lastDstMode(GL_ZERO), currentProgram(NULL) {
40    GLint maxTextureUnits;
41    glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, &maxTextureUnits);
42    if (maxTextureUnits < REQUIRED_TEXTURE_UNITS_COUNT) {
43        LOGW("At least %d texture units are required!", REQUIRED_TEXTURE_UNITS_COUNT);
44    }
45
46    glGenBuffers(1, &meshBuffer);
47    glBindBuffer(GL_ARRAY_BUFFER, meshBuffer);
48    glBufferData(GL_ARRAY_BUFFER, sizeof(gMeshVertices), gMeshVertices, GL_STATIC_DRAW);
49
50    glGetIntegerv(GL_MAX_TEXTURE_SIZE, &maxTextureSize);
51
52    mCurrentBuffer = meshBuffer;
53    mRegionMesh = NULL;
54
55    mDebugLevel = readDebugLevel();
56    LOGD("Enabling debug mode %d", mDebugLevel);
57
58#if RENDER_LAYERS_AS_REGIONS
59    LOGD("Layers will be composited as regions");
60#endif
61}
62
63Caches::~Caches() {
64    delete[] mRegionMesh;
65}
66
67///////////////////////////////////////////////////////////////////////////////
68// Debug
69///////////////////////////////////////////////////////////////////////////////
70
71void Caches::dumpMemoryUsage() {
72    LOGD("Current memory usage / total memory usage (bytes):");
73    LOGD("  TextureCache         %8d / %8d", textureCache.getSize(), textureCache.getMaxSize());
74    LOGD("  LayerCache           %8d / %8d", layerCache.getSize(), layerCache.getMaxSize());
75    LOGD("  GradientCache        %8d / %8d", gradientCache.getSize(), gradientCache.getMaxSize());
76    LOGD("  PathCache            %8d / %8d", pathCache.getSize(), pathCache.getMaxSize());
77    LOGD("  CircleShapeCache     %8d / %8d",
78            circleShapeCache.getSize(), circleShapeCache.getMaxSize());
79    LOGD("  OvalShapeCache       %8d / %8d",
80            ovalShapeCache.getSize(), ovalShapeCache.getMaxSize());
81    LOGD("  RoundRectShapeCache  %8d / %8d",
82            roundRectShapeCache.getSize(), roundRectShapeCache.getMaxSize());
83    LOGD("  RectShapeCache       %8d / %8d",
84            rectShapeCache.getSize(), rectShapeCache.getMaxSize());
85    LOGD("  ArcShapeCache        %8d / %8d",
86            arcShapeCache.getSize(), arcShapeCache.getMaxSize());
87    LOGD("  TextDropShadowCache  %8d / %8d", dropShadowCache.getSize(),
88            dropShadowCache.getMaxSize());
89    for (uint32_t i = 0; i < fontRenderer.getFontRendererCount(); i++) {
90        const uint32_t size = fontRenderer.getFontRendererSize(i);
91        LOGD("  FontRenderer %d       %8d / %8d", i, size, size);
92    }
93    LOGD("Other:");
94    LOGD("  FboCache             %8d / %8d", fboCache.getSize(), fboCache.getMaxSize());
95    LOGD("  PatchCache           %8d / %8d", patchCache.getSize(), patchCache.getMaxSize());
96
97    uint32_t total = 0;
98    total += textureCache.getSize();
99    total += layerCache.getSize();
100    total += gradientCache.getSize();
101    total += pathCache.getSize();
102    total += dropShadowCache.getSize();
103    total += roundRectShapeCache.getSize();
104    total += circleShapeCache.getSize();
105    total += ovalShapeCache.getSize();
106    total += rectShapeCache.getSize();
107    total += arcShapeCache.getSize();
108    for (uint32_t i = 0; i < fontRenderer.getFontRendererCount(); i++) {
109        total += fontRenderer.getFontRendererSize(i);
110    }
111
112    LOGD("Total memory usage:");
113    LOGD("  %d bytes, %.2f MB", total, total / 1024.0f / 1024.0f);
114    LOGD("\n");
115}
116
117///////////////////////////////////////////////////////////////////////////////
118// Memory management
119///////////////////////////////////////////////////////////////////////////////
120
121void Caches::clearGarbage() {
122    textureCache.clearGarbage();
123    gradientCache.clearGarbage();
124    pathCache.clearGarbage();
125
126    Mutex::Autolock _l(mGarbageLock);
127
128    size_t count = mLayerGarbage.size();
129    for (size_t i = 0; i < count; i++) {
130        Layer* layer = mLayerGarbage.itemAt(i);
131        LayerRenderer::destroyLayer(layer);
132    }
133    mLayerGarbage.clear();
134}
135
136void Caches::deleteLayerDeferred(Layer* layer) {
137    Mutex::Autolock _l(mGarbageLock);
138    mLayerGarbage.push(layer);
139}
140
141///////////////////////////////////////////////////////////////////////////////
142// VBO
143///////////////////////////////////////////////////////////////////////////////
144
145void Caches::bindMeshBuffer() {
146    bindMeshBuffer(meshBuffer);
147}
148
149void Caches::bindMeshBuffer(const GLuint buffer) {
150    if (mCurrentBuffer != buffer) {
151        glBindBuffer(GL_ARRAY_BUFFER, buffer);
152        mCurrentBuffer = buffer;
153    }
154}
155
156void Caches::unbindMeshBuffer() {
157    if (mCurrentBuffer) {
158        glBindBuffer(GL_ARRAY_BUFFER, 0);
159        mCurrentBuffer = 0;
160    }
161}
162
163TextureVertex* Caches::getRegionMesh() {
164    // Create the mesh, 2 triangles and 4 vertices per rectangle in the region
165    if (!mRegionMesh) {
166        mRegionMesh = new TextureVertex[REGION_MESH_QUAD_COUNT * 4];
167
168        uint16_t* regionIndices = new uint16_t[REGION_MESH_QUAD_COUNT * 6];
169        for (int i = 0; i < REGION_MESH_QUAD_COUNT; i++) {
170            uint16_t quad = i * 4;
171            int index = i * 6;
172            regionIndices[index    ] = quad;       // top-left
173            regionIndices[index + 1] = quad + 1;   // top-right
174            regionIndices[index + 2] = quad + 2;   // bottom-left
175            regionIndices[index + 3] = quad + 2;   // bottom-left
176            regionIndices[index + 4] = quad + 1;   // top-right
177            regionIndices[index + 5] = quad + 3;   // bottom-right
178        }
179
180        glGenBuffers(1, &mRegionMeshIndices);
181        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mRegionMeshIndices);
182        glBufferData(GL_ELEMENT_ARRAY_BUFFER, REGION_MESH_QUAD_COUNT * 6 * sizeof(uint16_t),
183                regionIndices, GL_STATIC_DRAW);
184
185        delete[] regionIndices;
186    } else {
187        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mRegionMeshIndices);
188    }
189
190    return mRegionMesh;
191}
192
193}; // namespace uirenderer
194}; // namespace android
195