1 /* 2 ** Copyright 2008, 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 #include <stdint.h> 18 #include <stddef.h> 19 #include <sys/types.h> 20 21 #include <utils/Atomic.h> 22 #include <utils/RefBase.h> 23 #include <utils/KeyedVector.h> 24 #include <utils/Errors.h> 25 26 #include <GLES/gl.h> 27 28 #include "BufferObjectManager.h" 29 30 31 namespace android { 32 33 using namespace gl; 34 35 // ---------------------------------------------------------------------------- 36 37 EGLBufferObjectManager::EGLBufferObjectManager() 38 : TokenManager(), mCount(0) 39 { 40 } 41 42 EGLBufferObjectManager::~EGLBufferObjectManager() 43 { 44 // destroy all the buffer objects and their storage 45 GLsizei n = mBuffers.size(); 46 for (GLsizei i=0 ; i<n ; i++) { 47 buffer_t* bo = mBuffers.valueAt(i); 48 free(bo->data); 49 delete bo; 50 } 51 } 52 53 buffer_t const* EGLBufferObjectManager::bind(GLuint buffer) 54 { 55 Mutex::Autolock _l(mLock); 56 int32_t i = mBuffers.indexOfKey(buffer); 57 if (i >= 0) { 58 return mBuffers.valueAt(i); 59 } 60 buffer_t* bo = new buffer_t; 61 bo->data = 0; 62 bo->usage = GL_STATIC_DRAW; 63 bo->size = 0; 64 bo->name = buffer; 65 mBuffers.add(buffer, bo); 66 return bo; 67 } 68 69 int EGLBufferObjectManager::allocateStore(buffer_t* bo, 70 GLsizeiptr size, GLenum usage) 71 { 72 Mutex::Autolock _l(mLock); 73 if (size != bo->size) { 74 uint8_t* data = (uint8_t*)malloc(size); 75 if (data == 0) 76 return -1; 77 free(bo->data); 78 bo->data = data; 79 bo->size = size; 80 } 81 bo->usage = usage; 82 return 0; 83 } 84 85 void EGLBufferObjectManager::deleteBuffers(GLsizei n, const GLuint* buffers) 86 { 87 Mutex::Autolock _l(mLock); 88 while (n--) { 89 const GLuint t = *buffers++; 90 if (t) { 91 int32_t index = mBuffers.indexOfKey(t); 92 if (index >= 0) { 93 buffer_t* bo = mBuffers.valueAt(index); 94 free(bo->data); 95 mBuffers.removeItemsAt(index); 96 delete bo; 97 } 98 } 99 } 100 } 101 102 // ---------------------------------------------------------------------------- 103 }; // namespace android 104
