1a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian/* 2a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian * Copyright (C) 2008 The Android Open Source Project 3a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian * 4a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian * Licensed under the Apache License, Version 2.0 (the "License"); 5a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian * you may not use this file except in compliance with the License. 6a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian * You may obtain a copy of the License at 7a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian * 8a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian * http://www.apache.org/licenses/LICENSE-2.0 9a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian * 10a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian * Unless required by applicable law or agreed to in writing, software 11a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian * distributed under the License is distributed on an "AS IS" BASIS, 12a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian * See the License for the specific language governing permissions and 14a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian * limitations under the License. 15a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian */ 16a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian 17a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian#include <limits.h> 188c4ab1fa14cc13c324bde91c0271f9ab5f4663d3Mathias Agopian#include <unistd.h> 198c4ab1fa14cc13c324bde91c0271f9ab5f4663d3Mathias Agopian#include <fcntl.h> 208c4ab1fa14cc13c324bde91c0271f9ab5f4663d3Mathias Agopian#include <errno.h> 218c4ab1fa14cc13c324bde91c0271f9ab5f4663d3Mathias Agopian#include <pthread.h> 22a4b587cb063dfd1b11f0006b0149e5e3045cc873Marco Nelissen#include <stdlib.h> 23a4b587cb063dfd1b11f0006b0149e5e3045cc873Marco Nelissen#include <string.h> 24a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian 25a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian#include <sys/mman.h> 26a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian#include <sys/stat.h> 27a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian#include <sys/types.h> 288c4ab1fa14cc13c324bde91c0271f9ab5f4663d3Mathias Agopian#include <sys/ioctl.h> 29a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian 30a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian#include <cutils/ashmem.h> 31a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian#include <cutils/log.h> 328c4ab1fa14cc13c324bde91c0271f9ab5f4663d3Mathias Agopian#include <cutils/atomic.h> 33a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian 34a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian#include <hardware/hardware.h> 35a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian#include <hardware/gralloc.h> 36a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian 37a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian#include "gralloc_priv.h" 38f96b2064d7753af7ab75f05eff9559f401e1a4adMathias Agopian#include "gr.h" 393e1f89bcca78fb5175043c76ff5a9310fae91829Mathias Agopian 403e1f89bcca78fb5175043c76ff5a9310fae91829Mathias Agopian/*****************************************************************************/ 413e1f89bcca78fb5175043c76ff5a9310fae91829Mathias Agopian 42a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopianstruct gralloc_context_t { 43a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian alloc_device_t device; 44a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian /* our private data here */ 45a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian}; 46a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian 47a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopianstatic int gralloc_alloc_buffer(alloc_device_t* dev, 48a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian size_t size, int usage, buffer_handle_t* pHandle); 49a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian 50a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian/*****************************************************************************/ 51a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian 52a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopianint fb_device_open(const hw_module_t* module, const char* name, 53a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian hw_device_t** device); 54a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian 55a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopianstatic int gralloc_device_open(const hw_module_t* module, const char* name, 56a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian hw_device_t** device); 57a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian 58a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopianextern int gralloc_lock(gralloc_module_t const* module, 59a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian buffer_handle_t handle, int usage, 60988b8bd553180e8d71b4028ecb721f46312efe62Mathias Agopian int l, int t, int w, int h, 61988b8bd553180e8d71b4028ecb721f46312efe62Mathias Agopian void** vaddr); 62a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian 63a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopianextern int gralloc_unlock(gralloc_module_t const* module, 64a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian buffer_handle_t handle); 65a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian 66988b8bd553180e8d71b4028ecb721f46312efe62Mathias Agopianextern int gralloc_register_buffer(gralloc_module_t const* module, 67988b8bd553180e8d71b4028ecb721f46312efe62Mathias Agopian buffer_handle_t handle); 68988b8bd553180e8d71b4028ecb721f46312efe62Mathias Agopian 69988b8bd553180e8d71b4028ecb721f46312efe62Mathias Agopianextern int gralloc_unregister_buffer(gralloc_module_t const* module, 70988b8bd553180e8d71b4028ecb721f46312efe62Mathias Agopian buffer_handle_t handle); 71988b8bd553180e8d71b4028ecb721f46312efe62Mathias Agopian 72a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian/*****************************************************************************/ 73a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian 74a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopianstatic struct hw_module_methods_t gralloc_module_methods = { 75a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian open: gralloc_device_open 76a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian}; 77a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian 78a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopianstruct private_module_t HAL_MODULE_INFO_SYM = { 79a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian base: { 80a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian common: { 81a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian tag: HARDWARE_MODULE_TAG, 82a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian version_major: 1, 83a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian version_minor: 0, 84a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian id: GRALLOC_HARDWARE_MODULE_ID, 85a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian name: "Graphics Memory Allocator Module", 86a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian author: "The Android Open Source Project", 87a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian methods: &gralloc_module_methods 88a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian }, 89988b8bd553180e8d71b4028ecb721f46312efe62Mathias Agopian registerBuffer: gralloc_register_buffer, 90988b8bd553180e8d71b4028ecb721f46312efe62Mathias Agopian unregisterBuffer: gralloc_unregister_buffer, 91a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian lock: gralloc_lock, 92a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian unlock: gralloc_unlock, 93a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian }, 94a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian framebuffer: 0, 95a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian flags: 0, 96a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian numBuffers: 0, 97a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian bufferMask: 0, 98a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian lock: PTHREAD_MUTEX_INITIALIZER, 998c4ab1fa14cc13c324bde91c0271f9ab5f4663d3Mathias Agopian currentBuffer: 0, 100a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian}; 101a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian 102a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian/*****************************************************************************/ 103a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian 104a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopianstatic int gralloc_alloc_framebuffer_locked(alloc_device_t* dev, 105a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian size_t size, int usage, buffer_handle_t* pHandle) 106a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian{ 107a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian private_module_t* m = reinterpret_cast<private_module_t*>( 108a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian dev->common.module); 109a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian 110a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian // allocate the framebuffer 111a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian if (m->framebuffer == NULL) { 112988b8bd553180e8d71b4028ecb721f46312efe62Mathias Agopian // initialize the framebuffer, the framebuffer is mapped once 113988b8bd553180e8d71b4028ecb721f46312efe62Mathias Agopian // and forever. 114a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian int err = mapFrameBufferLocked(m); 115a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian if (err < 0) { 116a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian return err; 117a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian } 118a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian } 119a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian 120a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian const uint32_t bufferMask = m->bufferMask; 121a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian const uint32_t numBuffers = m->numBuffers; 122a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian const size_t bufferSize = m->finfo.line_length * m->info.yres; 123a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian if (numBuffers == 1) { 124a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian // If we have only one buffer, we never use page-flipping. Instead, 125a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian // we return a regular buffer which will be memcpy'ed to the main 126a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian // screen when post is called. 127a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian int newUsage = (usage & ~GRALLOC_USAGE_HW_FB) | GRALLOC_USAGE_HW_2D; 128a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian return gralloc_alloc_buffer(dev, bufferSize, newUsage, pHandle); 129a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian } 130a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian 131a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian if (bufferMask >= ((1LU<<numBuffers)-1)) { 132a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian // We ran out of buffers. 133a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian return -ENOMEM; 134a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian } 135a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian 136a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian // create a "fake" handles for it 137a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian intptr_t vaddr = intptr_t(m->framebuffer->base); 138a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian private_handle_t* hnd = new private_handle_t(dup(m->framebuffer->fd), size, 139a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian private_handle_t::PRIV_FLAGS_FRAMEBUFFER); 140a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian 141a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian // find a free slot 142a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian for (uint32_t i=0 ; i<numBuffers ; i++) { 143a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian if ((bufferMask & (1LU<<i)) == 0) { 144a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian m->bufferMask |= (1LU<<i); 145a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian break; 146a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian } 147a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian vaddr += bufferSize; 148a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian } 149a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian 150a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian hnd->base = vaddr; 15172c8508db9c3895a34437a3e780b90ec43a920a2Mathias Agopian hnd->offset = vaddr - intptr_t(m->framebuffer->base); 152a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian *pHandle = hnd; 153a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian 154a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian return 0; 155a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian} 156a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian 157a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopianstatic int gralloc_alloc_framebuffer(alloc_device_t* dev, 158a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian size_t size, int usage, buffer_handle_t* pHandle) 159a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian{ 160a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian private_module_t* m = reinterpret_cast<private_module_t*>( 161a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian dev->common.module); 162a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian pthread_mutex_lock(&m->lock); 163a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian int err = gralloc_alloc_framebuffer_locked(dev, size, usage, pHandle); 164a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian pthread_mutex_unlock(&m->lock); 165a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian return err; 166a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian} 167a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian 168a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopianstatic int gralloc_alloc_buffer(alloc_device_t* dev, 169a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian size_t size, int usage, buffer_handle_t* pHandle) 170a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian{ 1718c4ab1fa14cc13c324bde91c0271f9ab5f4663d3Mathias Agopian int err = 0; 1728c4ab1fa14cc13c324bde91c0271f9ab5f4663d3Mathias Agopian int fd = -1; 1738c4ab1fa14cc13c324bde91c0271f9ab5f4663d3Mathias Agopian 1748c4ab1fa14cc13c324bde91c0271f9ab5f4663d3Mathias Agopian size = roundUpToPageSize(size); 1758c4ab1fa14cc13c324bde91c0271f9ab5f4663d3Mathias Agopian 176f96b2064d7753af7ab75f05eff9559f401e1a4adMathias Agopian fd = ashmem_create_region("gralloc-buffer", size); 177bfc010a750eb091017e370640d5c1644d671c7e4Mathias Agopian if (fd < 0) { 17860d056bf2926357260592409dee31374fa8e301bSteve Block ALOGE("couldn't create ashmem (%s)", strerror(-errno)); 179bfc010a750eb091017e370640d5c1644d671c7e4Mathias Agopian err = -errno; 180bfc010a750eb091017e370640d5c1644d671c7e4Mathias Agopian } 181bfc010a750eb091017e370640d5c1644d671c7e4Mathias Agopian 1828c4ab1fa14cc13c324bde91c0271f9ab5f4663d3Mathias Agopian if (err == 0) { 183f96b2064d7753af7ab75f05eff9559f401e1a4adMathias Agopian private_handle_t* hnd = new private_handle_t(fd, size, 0); 184f96b2064d7753af7ab75f05eff9559f401e1a4adMathias Agopian gralloc_module_t* module = reinterpret_cast<gralloc_module_t*>( 185f96b2064d7753af7ab75f05eff9559f401e1a4adMathias Agopian dev->common.module); 186f96b2064d7753af7ab75f05eff9559f401e1a4adMathias Agopian err = mapBuffer(module, hnd); 187f96b2064d7753af7ab75f05eff9559f401e1a4adMathias Agopian if (err == 0) { 188f96b2064d7753af7ab75f05eff9559f401e1a4adMathias Agopian *pHandle = hnd; 189f96b2064d7753af7ab75f05eff9559f401e1a4adMathias Agopian } 190a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian } 1918c4ab1fa14cc13c324bde91c0271f9ab5f4663d3Mathias Agopian 19260d056bf2926357260592409dee31374fa8e301bSteve Block ALOGE_IF(err, "gralloc failed err=%s", strerror(-err)); 1938c4ab1fa14cc13c324bde91c0271f9ab5f4663d3Mathias Agopian 1948c4ab1fa14cc13c324bde91c0271f9ab5f4663d3Mathias Agopian return err; 195a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian} 196a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian 197a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian/*****************************************************************************/ 198a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian 199a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopianstatic int gralloc_alloc(alloc_device_t* dev, 200a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian int w, int h, int format, int usage, 201a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian buffer_handle_t* pHandle, int* pStride) 202a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian{ 203a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian if (!pHandle || !pStride) 204a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian return -EINVAL; 205a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian 2068bf1f752686a228256e2f3c29a374d76f42b126bMathias Agopian size_t size, stride; 2079da751bbf7cc6db4a0156b92bb1d3ae585bcdf32Mathias Agopian 2089da751bbf7cc6db4a0156b92bb1d3ae585bcdf32Mathias Agopian int align = 4; 2099da751bbf7cc6db4a0156b92bb1d3ae585bcdf32Mathias Agopian int bpp = 0; 2109da751bbf7cc6db4a0156b92bb1d3ae585bcdf32Mathias Agopian switch (format) { 2119da751bbf7cc6db4a0156b92bb1d3ae585bcdf32Mathias Agopian case HAL_PIXEL_FORMAT_RGBA_8888: 2129da751bbf7cc6db4a0156b92bb1d3ae585bcdf32Mathias Agopian case HAL_PIXEL_FORMAT_RGBX_8888: 2139da751bbf7cc6db4a0156b92bb1d3ae585bcdf32Mathias Agopian case HAL_PIXEL_FORMAT_BGRA_8888: 2149da751bbf7cc6db4a0156b92bb1d3ae585bcdf32Mathias Agopian bpp = 4; 2159da751bbf7cc6db4a0156b92bb1d3ae585bcdf32Mathias Agopian break; 2169da751bbf7cc6db4a0156b92bb1d3ae585bcdf32Mathias Agopian case HAL_PIXEL_FORMAT_RGB_888: 2179da751bbf7cc6db4a0156b92bb1d3ae585bcdf32Mathias Agopian bpp = 3; 2189da751bbf7cc6db4a0156b92bb1d3ae585bcdf32Mathias Agopian break; 2199da751bbf7cc6db4a0156b92bb1d3ae585bcdf32Mathias Agopian case HAL_PIXEL_FORMAT_RGB_565: 2209da751bbf7cc6db4a0156b92bb1d3ae585bcdf32Mathias Agopian case HAL_PIXEL_FORMAT_RGBA_5551: 2219da751bbf7cc6db4a0156b92bb1d3ae585bcdf32Mathias Agopian case HAL_PIXEL_FORMAT_RGBA_4444: 222984272d92e40941f3d140f2cecb5f05986ac66b1Eino-Ville Talvala case HAL_PIXEL_FORMAT_RAW_SENSOR: 2239da751bbf7cc6db4a0156b92bb1d3ae585bcdf32Mathias Agopian bpp = 2; 2249da751bbf7cc6db4a0156b92bb1d3ae585bcdf32Mathias Agopian break; 2259da751bbf7cc6db4a0156b92bb1d3ae585bcdf32Mathias Agopian default: 2269da751bbf7cc6db4a0156b92bb1d3ae585bcdf32Mathias Agopian return -EINVAL; 227a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian } 2289da751bbf7cc6db4a0156b92bb1d3ae585bcdf32Mathias Agopian size_t bpr = (w*bpp + (align-1)) & ~(align-1); 2299da751bbf7cc6db4a0156b92bb1d3ae585bcdf32Mathias Agopian size = bpr * h; 2309da751bbf7cc6db4a0156b92bb1d3ae585bcdf32Mathias Agopian stride = bpr / bpp; 231a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian 232a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian int err; 233a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian if (usage & GRALLOC_USAGE_HW_FB) { 234a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian err = gralloc_alloc_framebuffer(dev, size, usage, pHandle); 235a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian } else { 236a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian err = gralloc_alloc_buffer(dev, size, usage, pHandle); 237a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian } 2388bf1f752686a228256e2f3c29a374d76f42b126bMathias Agopian 239a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian if (err < 0) { 240a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian return err; 241a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian } 242a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian 243a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian *pStride = stride; 244a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian return 0; 245a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian} 246a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian 247a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopianstatic int gralloc_free(alloc_device_t* dev, 248a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian buffer_handle_t handle) 249a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian{ 250a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian if (private_handle_t::validate(handle) < 0) 251a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian return -EINVAL; 252a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian 253a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian private_handle_t const* hnd = reinterpret_cast<private_handle_t const*>(handle); 254bd80b38f2945ac918f66fb336c149b28b9dd030eMathias Agopian if (hnd->flags & private_handle_t::PRIV_FLAGS_FRAMEBUFFER) { 255a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian // free this buffer 256a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian private_module_t* m = reinterpret_cast<private_module_t*>( 257a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian dev->common.module); 258a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian const size_t bufferSize = m->finfo.line_length * m->info.yres; 259a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian int index = (hnd->base - m->framebuffer->base) / bufferSize; 260a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian m->bufferMask &= ~(1<<index); 261bd80b38f2945ac918f66fb336c149b28b9dd030eMathias Agopian } else { 262bd80b38f2945ac918f66fb336c149b28b9dd030eMathias Agopian gralloc_module_t* module = reinterpret_cast<gralloc_module_t*>( 263bd80b38f2945ac918f66fb336c149b28b9dd030eMathias Agopian dev->common.module); 264bd80b38f2945ac918f66fb336c149b28b9dd030eMathias Agopian terminateBuffer(module, const_cast<private_handle_t*>(hnd)); 265bd80b38f2945ac918f66fb336c149b28b9dd030eMathias Agopian } 266988b8bd553180e8d71b4028ecb721f46312efe62Mathias Agopian 267a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian close(hnd->fd); 268a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian delete hnd; 269a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian return 0; 270a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian} 271a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian 272a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian/*****************************************************************************/ 273a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian 274a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopianstatic int gralloc_close(struct hw_device_t *dev) 275a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian{ 276a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian gralloc_context_t* ctx = reinterpret_cast<gralloc_context_t*>(dev); 277a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian if (ctx) { 278a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian /* TODO: keep a list of all buffer_handle_t created, and free them 279988b8bd553180e8d71b4028ecb721f46312efe62Mathias Agopian * all here. 280a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian */ 281a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian free(ctx); 282a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian } 283a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian return 0; 284a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian} 285a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian 286a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopianint gralloc_device_open(const hw_module_t* module, const char* name, 287a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian hw_device_t** device) 288a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian{ 289a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian int status = -EINVAL; 290a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian if (!strcmp(name, GRALLOC_HARDWARE_GPU0)) { 291a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian gralloc_context_t *dev; 292a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian dev = (gralloc_context_t*)malloc(sizeof(*dev)); 293a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian 294a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian /* initialize our state here */ 295a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian memset(dev, 0, sizeof(*dev)); 296a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian 297a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian /* initialize the procs */ 298a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian dev->device.common.tag = HARDWARE_DEVICE_TAG; 299a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian dev->device.common.version = 0; 300a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian dev->device.common.module = const_cast<hw_module_t*>(module); 301a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian dev->device.common.close = gralloc_close; 302a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian 303a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian dev->device.alloc = gralloc_alloc; 304a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian dev->device.free = gralloc_free; 305a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian 306a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian *device = &dev->device.common; 307a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian status = 0; 308a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian } else { 309a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian status = fb_device_open(module, name, device); 310a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian } 311a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian return status; 312a8a75166a2d3c7639a7432a67075c98796165206Mathias Agopian} 313