Caches.cpp revision f3a910b423db7ad79cf61518bdd9278c048ad0d8 
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>(), 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    LOGD("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    mCurrentPositionPointer = this;
77    mCurrentTexCoordsPointer = this;
78
79    mRegionMesh = NULL;
80
81    blend = false;
82    lastSrcMode = GL_ZERO;
83    lastDstMode = GL_ZERO;
84    currentProgram = NULL;
85
86    mInitialized = true;
87}
88
89void Caches::terminate() {
90    if (!mInitialized) return;
91
92    glDeleteBuffers(1, &meshBuffer);
93    mCurrentBuffer = 0;
94
95    glDeleteBuffers(1, &mRegionMeshIndices);
96    delete[] mRegionMesh;
97    mRegionMesh = NULL;
98
99    fboCache.clear();
100
101    programCache.clear();
102    currentProgram = NULL;
103
104    mInitialized = false;
105}
106
107///////////////////////////////////////////////////////////////////////////////
108// Debug
109///////////////////////////////////////////////////////////////////////////////
110
111void Caches::dumpMemoryUsage() {
112    String8 stringLog;
113    dumpMemoryUsage(stringLog);
114    LOGD("%s", stringLog.string());
115}
116
117void Caches::dumpMemoryUsage(String8 &log) {
118    log.appendFormat("Current memory usage / total memory usage (bytes):\n");
119    log.appendFormat("  TextureCache         %8d / %8d\n",
120            textureCache.getSize(), textureCache.getMaxSize());
121    log.appendFormat("  LayerCache           %8d / %8d\n",
122            layerCache.getSize(), layerCache.getMaxSize());
123    log.appendFormat("  GradientCache        %8d / %8d\n",
124            gradientCache.getSize(), gradientCache.getMaxSize());
125    log.appendFormat("  PathCache            %8d / %8d\n",
126            pathCache.getSize(), pathCache.getMaxSize());
127    log.appendFormat("  CircleShapeCache     %8d / %8d\n",
128            circleShapeCache.getSize(), circleShapeCache.getMaxSize());
129    log.appendFormat("  OvalShapeCache       %8d / %8d\n",
130            ovalShapeCache.getSize(), ovalShapeCache.getMaxSize());
131    log.appendFormat("  RoundRectShapeCache  %8d / %8d\n",
132            roundRectShapeCache.getSize(), roundRectShapeCache.getMaxSize());
133    log.appendFormat("  RectShapeCache       %8d / %8d\n",
134            rectShapeCache.getSize(), rectShapeCache.getMaxSize());
135    log.appendFormat("  ArcShapeCache        %8d / %8d\n",
136            arcShapeCache.getSize(), arcShapeCache.getMaxSize());
137    log.appendFormat("  TextDropShadowCache  %8d / %8d\n", dropShadowCache.getSize(),
138            dropShadowCache.getMaxSize());
139    for (uint32_t i = 0; i < fontRenderer.getFontRendererCount(); i++) {
140        const uint32_t size = fontRenderer.getFontRendererSize(i);
141        log.appendFormat("  FontRenderer %d       %8d / %8d\n", i, size, size);
142    }
143    log.appendFormat("Other:\n");
144    log.appendFormat("  FboCache             %8d / %8d\n",
145            fboCache.getSize(), fboCache.getMaxSize());
146    log.appendFormat("  PatchCache           %8d / %8d\n",
147            patchCache.getSize(), patchCache.getMaxSize());
148
149    uint32_t total = 0;
150    total += textureCache.getSize();
151    total += layerCache.getSize();
152    total += gradientCache.getSize();
153    total += pathCache.getSize();
154    total += dropShadowCache.getSize();
155    total += roundRectShapeCache.getSize();
156    total += circleShapeCache.getSize();
157    total += ovalShapeCache.getSize();
158    total += rectShapeCache.getSize();
159    total += arcShapeCache.getSize();
160    for (uint32_t i = 0; i < fontRenderer.getFontRendererCount(); i++) {
161        total += fontRenderer.getFontRendererSize(i);
162    }
163
164    log.appendFormat("Total memory usage:\n");
165    log.appendFormat("  %d bytes, %.2f MB\n", total, total / 1024.0f / 1024.0f);
166}
167
168///////////////////////////////////////////////////////////////////////////////
169// Memory management
170///////////////////////////////////////////////////////////////////////////////
171
172void Caches::clearGarbage() {
173    textureCache.clearGarbage();
174    pathCache.clearGarbage();
175
176    Mutex::Autolock _l(mGarbageLock);
177
178    size_t count = mLayerGarbage.size();
179    for (size_t i = 0; i < count; i++) {
180        Layer* layer = mLayerGarbage.itemAt(i);
181        LayerRenderer::destroyLayer(layer);
182    }
183    mLayerGarbage.clear();
184}
185
186void Caches::deleteLayerDeferred(Layer* layer) {
187    Mutex::Autolock _l(mGarbageLock);
188    mLayerGarbage.push(layer);
189}
190
191void Caches::flush(FlushMode mode) {
192    FLUSH_LOGD("Flushing caches (mode %d)", mode);
193
194    clearGarbage();
195
196    switch (mode) {
197        case kFlushMode_Full:
198            textureCache.clear();
199            patchCache.clear();
200            dropShadowCache.clear();
201            gradientCache.clear();
202            fontRenderer.clear();
203            // fall through
204        case kFlushMode_Moderate:
205            fontRenderer.flush();
206            textureCache.flush();
207            pathCache.clear();
208            roundRectShapeCache.clear();
209            circleShapeCache.clear();
210            ovalShapeCache.clear();
211            rectShapeCache.clear();
212            arcShapeCache.clear();
213            // fall through
214        case kFlushMode_Layers:
215            layerCache.clear();
216            break;
217    }
218}
219
220///////////////////////////////////////////////////////////////////////////////
221// VBO
222///////////////////////////////////////////////////////////////////////////////
223
224bool Caches::bindMeshBuffer() {
225    return bindMeshBuffer(meshBuffer);
226}
227
228bool Caches::bindMeshBuffer(const GLuint buffer) {
229    if (mCurrentBuffer != buffer) {
230        glBindBuffer(GL_ARRAY_BUFFER, buffer);
231        mCurrentBuffer = buffer;
232        return true;
233    }
234    return false;
235}
236
237bool Caches::unbindMeshBuffer() {
238    if (mCurrentBuffer) {
239        glBindBuffer(GL_ARRAY_BUFFER, 0);
240        mCurrentBuffer = 0;
241        return true;
242    }
243    return false;
244}
245
246void Caches::bindPositionVertexPointer(bool force, GLuint slot, GLvoid* vertices, GLsizei stride) {
247    if (force || vertices != mCurrentPositionPointer) {
248        glVertexAttribPointer(slot, 2, GL_FLOAT, GL_FALSE, stride, vertices);
249        mCurrentPositionPointer = vertices;
250    }
251}
252
253void Caches::bindTexCoordsVertexPointer(bool force, GLuint slot, GLvoid* vertices) {
254    if (force || vertices != mCurrentTexCoordsPointer) {
255        glVertexAttribPointer(slot, 2, GL_FLOAT, GL_FALSE, gMeshStride, vertices);
256        mCurrentTexCoordsPointer = vertices;
257    }
258}
259
260void Caches::resetVertexPointers() {
261    mCurrentPositionPointer = this;
262    mCurrentTexCoordsPointer = this;
263}
264
265void Caches::resetTexCoordsVertexPointer() {
266    mCurrentTexCoordsPointer = this;
267}
268
269TextureVertex* Caches::getRegionMesh() {
270    // Create the mesh, 2 triangles and 4 vertices per rectangle in the region
271    if (!mRegionMesh) {
272        mRegionMesh = new TextureVertex[REGION_MESH_QUAD_COUNT * 4];
273
274        uint16_t* regionIndices = new uint16_t[REGION_MESH_QUAD_COUNT * 6];
275        for (int i = 0; i < REGION_MESH_QUAD_COUNT; i++) {
276            uint16_t quad = i * 4;
277            int index = i * 6;
278            regionIndices[index    ] = quad;       // top-left
279            regionIndices[index + 1] = quad + 1;   // top-right
280            regionIndices[index + 2] = quad + 2;   // bottom-left
281            regionIndices[index + 3] = quad + 2;   // bottom-left
282            regionIndices[index + 4] = quad + 1;   // top-right
283            regionIndices[index + 5] = quad + 3;   // bottom-right
284        }
285
286        glGenBuffers(1, &mRegionMeshIndices);
287        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mRegionMeshIndices);
288        glBufferData(GL_ELEMENT_ARRAY_BUFFER, REGION_MESH_QUAD_COUNT * 6 * sizeof(uint16_t),
289                regionIndices, GL_STATIC_DRAW);
290
291        delete[] regionIndices;
292    } else {
293        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mRegionMeshIndices);
294    }
295
296    return mRegionMesh;
297}
298
299}; // namespace uirenderer
300}; // namespace android
301