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/*
* Copyright (c) 2016-2018, The Linux Foundation. All rights reserved.
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of The Linux Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __GR_DEVICE_IMPL_H__
#define __GR_DEVICE_IMPL_H__
#include <hardware/gralloc1.h>
#include <hardware/hardware.h>
#include "gr_buf_mgr.h"
struct private_module_t {
hw_module_t base;
};
#define GRALLOC_IMPL(exp) reinterpret_cast<GrallocImpl const *>(exp)
namespace gralloc {
class GrallocImpl : public gralloc1_device_t {
public:
static int CloseDevice(hw_device_t *device);
static void GetCapabilities(struct gralloc1_device *device, uint32_t *out_count,
int32_t * /*gralloc1_capability_t*/ out_capabilities);
static gralloc1_function_pointer_t GetFunction(
struct gralloc1_device *device, int32_t /*gralloc1_function_descriptor_t*/ descriptor);
static GrallocImpl *GetInstance(const struct hw_module_t *module) {
static GrallocImpl *instance = new GrallocImpl(module);
if (instance->IsInitialized()) {
return instance;
} else {
return nullptr;
}
}
private:
static inline gralloc1_error_t Dump(gralloc1_device_t *device, uint32_t *out_size,
char *out_buffer);
static inline gralloc1_error_t CheckDeviceAndHandle(gralloc1_device_t *device,
buffer_handle_t buffer);
static gralloc1_error_t CreateBufferDescriptor(gralloc1_device_t *device,
gralloc1_buffer_descriptor_t *out_descriptor);
static gralloc1_error_t DestroyBufferDescriptor(gralloc1_device_t *device,
gralloc1_buffer_descriptor_t descriptor);
static gralloc1_error_t SetConsumerUsage(gralloc1_device_t *device,
gralloc1_buffer_descriptor_t descriptor,
gralloc1_consumer_usage_t usage);
static gralloc1_error_t SetBufferDimensions(gralloc1_device_t *device,
gralloc1_buffer_descriptor_t descriptor,
uint32_t width, uint32_t height);
static gralloc1_error_t SetColorFormat(gralloc1_device_t *device,
gralloc1_buffer_descriptor_t descriptor, int32_t format);
static gralloc1_error_t SetLayerCount(gralloc1_device_t *device,
gralloc1_buffer_descriptor_t descriptor,
uint32_t layer_count);
static gralloc1_error_t SetProducerUsage(gralloc1_device_t *device,
gralloc1_buffer_descriptor_t descriptor,
gralloc1_producer_usage_t usage);
static gralloc1_error_t GetBackingStore(gralloc1_device_t *device, buffer_handle_t buffer,
gralloc1_backing_store_t *out_store);
static gralloc1_error_t GetConsumerUsage(gralloc1_device_t *device, buffer_handle_t buffer,
gralloc1_consumer_usage_t *out_usage);
static gralloc1_error_t GetBufferDimensions(gralloc1_device_t *device, buffer_handle_t buffer,
uint32_t *out_width, uint32_t *out_height);
static gralloc1_error_t GetColorFormat(gralloc1_device_t *device, buffer_handle_t descriptor,
int32_t *outFormat);
static gralloc1_error_t GetLayerCount(gralloc1_device_t *device, buffer_handle_t buffer,
uint32_t *out_layer_count);
static gralloc1_error_t GetProducerUsage(gralloc1_device_t *device, buffer_handle_t buffer,
gralloc1_producer_usage_t *out_usage);
static gralloc1_error_t GetBufferStride(gralloc1_device_t *device, buffer_handle_t buffer,
uint32_t *out_stride);
static gralloc1_error_t AllocateBuffers(gralloc1_device_t *device, uint32_t num_dptors,
const gralloc1_buffer_descriptor_t *descriptors,
buffer_handle_t *out_buffers);
static gralloc1_error_t RetainBuffer(gralloc1_device_t *device, buffer_handle_t buffer);
static gralloc1_error_t ReleaseBuffer(gralloc1_device_t *device, buffer_handle_t buffer);
static gralloc1_error_t GetNumFlexPlanes(gralloc1_device_t *device, buffer_handle_t buffer,
uint32_t *out_num_planes);
static gralloc1_error_t LockBuffer(gralloc1_device_t *device, buffer_handle_t buffer,
gralloc1_producer_usage_t prod_usage,
gralloc1_consumer_usage_t cons_usage,
const gralloc1_rect_t *region, void **out_data,
int32_t acquire_fence);
static gralloc1_error_t LockFlex(gralloc1_device_t *device, buffer_handle_t buffer,
gralloc1_producer_usage_t prod_usage,
gralloc1_consumer_usage_t cons_usage,
const gralloc1_rect_t *region,
struct android_flex_layout *out_flex_layout,
int32_t acquire_fence);
static gralloc1_error_t UnlockBuffer(gralloc1_device_t *device, buffer_handle_t buffer,
int32_t *release_fence);
static gralloc1_error_t Gralloc1Perform(gralloc1_device_t *device, int operation, ...);
gralloc1_error_t CreateBufferDescriptorLocked(gralloc1_buffer_descriptor_t *descriptor_id);
gralloc1_error_t DestroyBufferDescriptorLocked(gralloc1_buffer_descriptor_t descriptor_id);
gralloc1_error_t AllocateBuffer(const gralloc1_buffer_descriptor_t *descriptor_ids,
buffer_handle_t *out_buffers);
gralloc1_error_t GetFlexLayout(const private_handle_t *hnd, struct android_flex_layout *layout);
template <typename... Args>
gralloc1_error_t CallBufferDescriptorFunction(gralloc1_buffer_descriptor_t descriptor_id,
void (BufferDescriptor::*member)(Args...),
Args... args) {
std::lock_guard<std::mutex> lock(descriptor_lock_);
const auto map_descriptor = descriptors_map_.find(descriptor_id);
if (map_descriptor == descriptors_map_.end()) {
return GRALLOC1_ERROR_BAD_DESCRIPTOR;
}
const auto descriptor = map_descriptor->second;
(descriptor.get()->*member)(std::forward<Args>(args)...);
return GRALLOC1_ERROR_NONE;
}
explicit GrallocImpl(const hw_module_t *module);
~GrallocImpl();
bool Init();
bool IsInitialized() const { return initialized_; }
BufferManager *buf_mgr_ = NULL;
bool initialized_ = false;
std::mutex descriptor_lock_;
std::unordered_map<gralloc1_buffer_descriptor_t, std::shared_ptr<gralloc::BufferDescriptor>>
descriptors_map_ = {};
static std::atomic<uint64_t> next_descriptor_id_;
};
} // namespace gralloc
#endif // __GR_DEVICE_IMPL_H__
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