114 lines
3.3 KiB
C++
114 lines
3.3 KiB
C++
/*
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* Copyright (C) 2008, The Android Open Source Project
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* Copyright (c) 2011, Code Aurora Forum. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <unistd.h>
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#include <fcntl.h>
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#include <sys/mman.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <sys/ioctl.h>
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#include <cutils/properties.h>
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#include <utils/RefBase.h>
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#include <linux/android_pmem.h>
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#include "gr.h"
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#include "gpu.h"
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#include "memalloc.h"
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#include "alloc_controller.h"
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using namespace gralloc;
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using android::sp;
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int fb_device_open(const hw_module_t* module, const char* name,
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hw_device_t** device);
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static int gralloc_device_open(const hw_module_t* module, const char* name,
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hw_device_t** device);
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extern int gralloc_lock(gralloc_module_t const* module,
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buffer_handle_t handle, int usage,
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int l, int t, int w, int h,
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void** vaddr);
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extern int gralloc_unlock(gralloc_module_t const* module,
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buffer_handle_t handle);
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extern int gralloc_register_buffer(gralloc_module_t const* module,
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buffer_handle_t handle);
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extern int gralloc_unregister_buffer(gralloc_module_t const* module,
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buffer_handle_t handle);
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extern int gralloc_perform(struct gralloc_module_t const* module,
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int operation, ... );
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// HAL module methods
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static struct hw_module_methods_t gralloc_module_methods = {
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open: gralloc_device_open
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};
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// HAL module initialize
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struct private_module_t HAL_MODULE_INFO_SYM = {
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base: {
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common: {
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tag: HARDWARE_MODULE_TAG,
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version_major: 1,
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version_minor: 0,
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id: GRALLOC_HARDWARE_MODULE_ID,
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name: "Graphics Memory Allocator Module",
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author: "The Android Open Source Project",
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methods: &gralloc_module_methods,
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dso: 0,
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reserved: {0},
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},
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registerBuffer: gralloc_register_buffer,
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unregisterBuffer: gralloc_unregister_buffer,
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lock: gralloc_lock,
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unlock: gralloc_unlock,
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perform: gralloc_perform,
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reserved_proc: {0},
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},
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framebuffer: 0,
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fbFormat: 0,
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flags: 0,
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numBuffers: 0,
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bufferMask: 0,
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lock: PTHREAD_MUTEX_INITIALIZER,
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currentBuffer: 0,
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};
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// Open Gralloc device
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int gralloc_device_open(const hw_module_t* module, const char* name,
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hw_device_t** device)
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{
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int status = -EINVAL;
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if (!strcmp(name, GRALLOC_HARDWARE_GPU0)) {
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const private_module_t* m = reinterpret_cast<const private_module_t*>(
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module);
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gpu_context_t *dev;
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sp<IAllocController> alloc_ctrl = IAllocController::getInstance(true);
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dev = new gpu_context_t(m, alloc_ctrl);
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*device = &dev->common;
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status = 0;
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} else {
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status = fb_device_open(module, name, device);
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}
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return status;
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}
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