GraphicBufferAllocator.cpp revision c8620b60d67390d2bd0fa0ce53cc63fc18c50244
1/* 2** 3** Copyright 2009, The Android Open Source Project 4** 5** Licensed under the Apache License, Version 2.0 (the "License"); 6** you may not use this file except in compliance with the License. 7** You may obtain a copy of the License at 8** 9** http://www.apache.org/licenses/LICENSE-2.0 10** 11** Unless required by applicable law or agreed to in writing, software 12** distributed under the License is distributed on an "AS IS" BASIS, 13** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14** See the License for the specific language governing permissions and 15** limitations under the License. 16*/ 17 18#include <cutils/log.h> 19 20#include <utils/Singleton.h> 21#include <utils/String8.h> 22 23#include <ui/GraphicBufferAllocator.h> 24 25#include <private/ui/sw_gralloc_handle.h> 26 27namespace android { 28// --------------------------------------------------------------------------- 29 30ANDROID_SINGLETON_STATIC_INSTANCE( GraphicBufferAllocator ) 31 32Mutex GraphicBufferAllocator::sLock; 33KeyedVector<buffer_handle_t, 34 GraphicBufferAllocator::alloc_rec_t> GraphicBufferAllocator::sAllocList; 35 36GraphicBufferAllocator::GraphicBufferAllocator() 37 : mAllocDev(0) 38{ 39 hw_module_t const* module; 40 int err = hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &module); 41 LOGE_IF(err, "FATAL: can't find the %s module", GRALLOC_HARDWARE_MODULE_ID); 42 if (err == 0) { 43 gralloc_open(module, &mAllocDev); 44 } 45} 46 47GraphicBufferAllocator::~GraphicBufferAllocator() 48{ 49 gralloc_close(mAllocDev); 50} 51 52void GraphicBufferAllocator::dump(String8& result) const 53{ 54 Mutex::Autolock _l(sLock); 55 KeyedVector<buffer_handle_t, alloc_rec_t>& list(sAllocList); 56 size_t total = 0; 57 const size_t SIZE = 512; 58 char buffer[SIZE]; 59 snprintf(buffer, SIZE, "Allocated buffers:\n"); 60 result.append(buffer); 61 const size_t c = list.size(); 62 for (size_t i=0 ; i<c ; i++) { 63 const alloc_rec_t& rec(list.valueAt(i)); 64 snprintf(buffer, SIZE, "%10p: %7.2f KiB | %4u x %4u | %2d | 0x%08x\n", 65 list.keyAt(i), rec.size/1024.0f, 66 rec.w, rec.h, rec.format, rec.usage); 67 result.append(buffer); 68 total += rec.size; 69 } 70 snprintf(buffer, SIZE, "Total allocated: %.2f KB\n", total/1024.0f); 71 result.append(buffer); 72} 73 74static inline uint32_t clamp(uint32_t c) { 75 return c>0 ? c : 1; 76} 77 78status_t GraphicBufferAllocator::alloc(uint32_t w, uint32_t h, PixelFormat format, 79 int usage, buffer_handle_t* handle, int32_t* stride) 80{ 81 // make sure to not allocate a 0 x 0 buffer 82 w = clamp(w); 83 h = clamp(h); 84 85 // we have a h/w allocator and h/w buffer is requested 86 status_t err; 87 88 if (usage & GRALLOC_USAGE_HW_MASK) { 89 err = mAllocDev->alloc(mAllocDev, w, h, format, usage, handle, stride); 90 } else { 91 err = sw_gralloc_handle_t::alloc(w, h, format, usage, handle, stride); 92 } 93 94 LOGW_IF(err, "alloc(%u, %u, %d, %08x, ...) failed %d (%s)", 95 w, h, format, usage, err, strerror(-err)); 96 97 if (err == NO_ERROR) { 98 Mutex::Autolock _l(sLock); 99 KeyedVector<buffer_handle_t, alloc_rec_t>& list(sAllocList); 100 alloc_rec_t rec; 101 rec.w = w; 102 rec.h = h; 103 rec.format = format; 104 rec.usage = usage; 105 rec.vaddr = 0; 106 rec.size = h * stride[0] * bytesPerPixel(format); 107 list.add(*handle, rec); 108 } else { 109 String8 s; 110 dump(s); 111 LOGD("%s", s.string()); 112 } 113 114 return err; 115} 116 117status_t GraphicBufferAllocator::free(buffer_handle_t handle) 118{ 119 status_t err; 120 if (sw_gralloc_handle_t::validate(handle) < 0) { 121 err = mAllocDev->free(mAllocDev, handle); 122 } else { 123 err = sw_gralloc_handle_t::free((sw_gralloc_handle_t*)handle); 124 } 125 126 LOGW_IF(err, "free(...) failed %d (%s)", err, strerror(-err)); 127 if (err == NO_ERROR) { 128 Mutex::Autolock _l(sLock); 129 KeyedVector<buffer_handle_t, alloc_rec_t>& list(sAllocList); 130 list.removeItem(handle); 131 } 132 133 return err; 134} 135 136// --------------------------------------------------------------------------- 137}; // namespace android 138