/* * Copyright (c) 2016-2019, 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 #include #include "gr_buf_mgr.h" struct private_module_t { hw_module_t base; }; #define GRALLOC_IMPL(exp) reinterpret_cast(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 void 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 int32_t CreateBufferDescriptor(gralloc1_device_t *device, gralloc1_buffer_descriptor_t *out_descriptor); static int32_t DestroyBufferDescriptor(gralloc1_device_t *device, gralloc1_buffer_descriptor_t descriptor); static int32_t SetConsumerUsage(gralloc1_device_t *device, gralloc1_buffer_descriptor_t descriptor, uint64_t /*gralloc1_consumer_usage_t*/ usage); static int32_t SetBufferDimensions(gralloc1_device_t *device, gralloc1_buffer_descriptor_t descriptor, uint32_t width, uint32_t height); static int32_t SetColorFormat(gralloc1_device_t *device, gralloc1_buffer_descriptor_t descriptor, int32_t format); static int32_t SetLayerCount(gralloc1_device_t *device, gralloc1_buffer_descriptor_t descriptor, uint32_t layer_count); static int32_t SetProducerUsage(gralloc1_device_t *device, gralloc1_buffer_descriptor_t descriptor, uint64_t /*gralloc1_producer_usage_t*/ usage); static int32_t GetBackingStore(gralloc1_device_t *device, buffer_handle_t buffer, gralloc1_backing_store_t *out_store); static int32_t GetConsumerUsage(gralloc1_device_t *device, buffer_handle_t buffer, uint64_t /*gralloc1_consumer_usage_t*/ *out_usage); static int32_t GetBufferDimensions(gralloc1_device_t *device, buffer_handle_t buffer, uint32_t *out_width, uint32_t *out_height); static int32_t GetColorFormat(gralloc1_device_t *device, buffer_handle_t descriptor, int32_t *outFormat); static int32_t GetLayerCount(gralloc1_device_t *device, buffer_handle_t buffer, uint32_t *out_layer_count); static int32_t GetProducerUsage(gralloc1_device_t *device, buffer_handle_t buffer, uint64_t /*gralloc1_producer_usage_t*/ *out_usage); static int32_t GetBufferStride(gralloc1_device_t *device, buffer_handle_t buffer, uint32_t *out_stride); static int32_t AllocateBuffers(gralloc1_device_t *device, uint32_t num_dptors, const gralloc1_buffer_descriptor_t *descriptors, buffer_handle_t *out_buffers); static int32_t RetainBuffer(gralloc1_device_t *device, buffer_handle_t buffer); static int32_t ReleaseBuffer(gralloc1_device_t *device, buffer_handle_t buffer); static int32_t GetNumFlexPlanes(gralloc1_device_t *device, buffer_handle_t buffer, uint32_t *out_num_planes); static int32_t LockBuffer(gralloc1_device_t *device, buffer_handle_t buffer, uint64_t /*gralloc1_producer_usage_t*/ prod_usage, uint64_t /*gralloc1_consumer_usage_t*/ cons_usage, const gralloc1_rect_t *region, void **out_data, int32_t acquire_fence); static int32_t LockFlex(gralloc1_device_t *device, buffer_handle_t buffer, uint64_t /*gralloc1_producer_usage_t*/ prod_usage, uint64_t /*gralloc1_consumer_usage_t*/ cons_usage, const gralloc1_rect_t *region, struct android_flex_layout *out_flex_layout, int32_t acquire_fence); static int32_t UnlockBuffer(gralloc1_device_t *device, buffer_handle_t buffer, int32_t *release_fence); static int32_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); int32_t GetFlexLayout(const private_handle_t *hnd, struct android_flex_layout *layout); template int32_t CallBufferDescriptorFunction(gralloc1_buffer_descriptor_t descriptor_id, void (BufferDescriptor::*member)(Args...), Args... args) { std::lock_guard 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)...); 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> descriptors_map_ = {}; static std::atomic next_descriptor_id_; }; } // namespace gralloc #endif // __GR_DEVICE_IMPL_H__