Caches.cpp revision c15008e72ec00ca20a271c3006dac649fd07533b
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 23namespace android { 24 25#ifdef USE_OPENGL_RENDERER 26using namespace uirenderer; 27ANDROID_SINGLETON_STATIC_INSTANCE(Caches); 28#endif 29 30namespace uirenderer { 31 32/////////////////////////////////////////////////////////////////////////////// 33// Constructors/destructor 34/////////////////////////////////////////////////////////////////////////////// 35 36Caches::Caches(): Singleton<Caches>(), blend(false), lastSrcMode(GL_ZERO), 37 lastDstMode(GL_ZERO), currentProgram(NULL) { 38 GLint maxTextureUnits; 39 glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, &maxTextureUnits); 40 if (maxTextureUnits < REQUIRED_TEXTURE_UNITS_COUNT) { 41 LOGW("At least %d texture units are required!", REQUIRED_TEXTURE_UNITS_COUNT); 42 } 43 44 glGenBuffers(1, &meshBuffer); 45 glBindBuffer(GL_ARRAY_BUFFER, meshBuffer); 46 glBufferData(GL_ARRAY_BUFFER, sizeof(gMeshVertices), gMeshVertices, GL_STATIC_DRAW); 47 48 glGetIntegerv(GL_MAX_TEXTURE_SIZE, &maxTextureSize); 49 50 mCurrentBuffer = meshBuffer; 51 mRegionMesh = NULL; 52} 53 54Caches::~Caches() { 55 delete[] mRegionMesh; 56} 57 58/////////////////////////////////////////////////////////////////////////////// 59// Debug 60/////////////////////////////////////////////////////////////////////////////// 61 62void Caches::dumpMemoryUsage() { 63 LOGD("Current memory usage / total memory usage (bytes):"); 64 LOGD(" TextureCache %8d / %8d", textureCache.getSize(), textureCache.getMaxSize()); 65 LOGD(" LayerCache %8d / %8d", layerCache.getSize(), layerCache.getMaxSize()); 66 LOGD(" GradientCache %8d / %8d", gradientCache.getSize(), gradientCache.getMaxSize()); 67 LOGD(" PathCache %8d / %8d", pathCache.getSize(), pathCache.getMaxSize()); 68 LOGD(" TextDropShadowCache %8d / %8d", dropShadowCache.getSize(), 69 dropShadowCache.getMaxSize()); 70 for (uint32_t i = 0; i < fontRenderer.getFontRendererCount(); i++) { 71 const uint32_t size = fontRenderer.getFontRendererSize(i); 72 LOGD(" FontRenderer %d %8d / %8d", i, size, size); 73 } 74 LOGD("Other:"); 75 LOGD(" FboCache %8d / %8d", fboCache.getSize(), fboCache.getMaxSize()); 76 LOGD(" PatchCache %8d / %8d", patchCache.getSize(), patchCache.getMaxSize()); 77 78 uint32_t total = 0; 79 total += textureCache.getSize(); 80 total += layerCache.getSize(); 81 total += gradientCache.getSize(); 82 total += pathCache.getSize(); 83 total += dropShadowCache.getSize(); 84 for (uint32_t i = 0; i < fontRenderer.getFontRendererCount(); i++) { 85 total += fontRenderer.getFontRendererSize(i); 86 } 87 88 LOGD("Total memory usage:"); 89 LOGD(" %d bytes, %.2f MB", total, total / 1024.0f / 1024.0f); 90 LOGD("\n"); 91} 92 93/////////////////////////////////////////////////////////////////////////////// 94// VBO 95/////////////////////////////////////////////////////////////////////////////// 96 97void Caches::bindMeshBuffer() { 98 bindMeshBuffer(meshBuffer); 99} 100 101void Caches::bindMeshBuffer(const GLuint buffer) { 102 if (mCurrentBuffer != buffer) { 103 glBindBuffer(GL_ARRAY_BUFFER, buffer); 104 mCurrentBuffer = buffer; 105 } 106} 107 108void Caches::unbindMeshBuffer() { 109 if (mCurrentBuffer) { 110 glBindBuffer(GL_ARRAY_BUFFER, 0); 111 mCurrentBuffer = 0; 112 } 113} 114 115TextureVertex* Caches::getRegionMesh() { 116 // Create the mesh, 2 triangles and 4 vertices per rectangle in the region 117 if (!mRegionMesh) { 118 mRegionMesh = new TextureVertex[REGION_MESH_QUAD_COUNT * 4]; 119 120 uint16_t* regionIndices = new uint16_t[REGION_MESH_QUAD_COUNT * 6]; 121 for (int i = 0; i < REGION_MESH_QUAD_COUNT; i++) { 122 uint16_t quad = i * 4; 123 int index = i * 6; 124 regionIndices[index ] = quad; // top-left 125 regionIndices[index + 1] = quad + 1; // top-right 126 regionIndices[index + 2] = quad + 2; // bottom-left 127 regionIndices[index + 3] = quad + 2; // bottom-left 128 regionIndices[index + 4] = quad + 1; // top-right 129 regionIndices[index + 5] = quad + 3; // bottom-right 130 } 131 132 glGenBuffers(1, &mRegionMeshIndices); 133 glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mRegionMeshIndices); 134 glBufferData(GL_ELEMENT_ARRAY_BUFFER, REGION_MESH_QUAD_COUNT * 6 * sizeof(uint16_t), 135 regionIndices, GL_STATIC_DRAW); 136 137 delete[] regionIndices; 138 } else { 139 glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mRegionMeshIndices); 140 } 141 142 return mRegionMesh; 143} 144 145}; // namespace uirenderer 146}; // namespace android 147