1 /* 2 * Copyright (c) 2016-2019, The Linux Foundation. All rights reserved. 3 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * * Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * * Redistributions in binary form must reproduce the above 10 * copyright notice, this list of conditions and the following 11 * disclaimer in the documentation and/or other materials provided 12 * with the distribution. 13 * * Neither the name of The Linux Foundation nor the names of its 14 * contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED 18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS 21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 24 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 25 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 26 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN 27 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 #ifndef __GR_DEVICE_IMPL_H__ 31 #define __GR_DEVICE_IMPL_H__ 32 33 #include <hardware/gralloc1.h> 34 #include <hardware/hardware.h> 35 #include "gr_buf_mgr.h" 36 37 struct private_module_t { 38 hw_module_t base; 39 }; 40 41 #define GRALLOC_IMPL(exp) reinterpret_cast<GrallocImpl const *>(exp) 42 43 namespace gralloc { 44 45 class GrallocImpl : public gralloc1_device_t { 46 public: 47 static int CloseDevice(hw_device_t *device); 48 static void GetCapabilities(struct gralloc1_device *device, uint32_t *out_count, 49 int32_t * /*gralloc1_capability_t*/ out_capabilities); 50 static gralloc1_function_pointer_t GetFunction( 51 struct gralloc1_device *device, int32_t /*gralloc1_function_descriptor_t*/ descriptor); 52 GetInstance(const struct hw_module_t * module)53 static GrallocImpl *GetInstance(const struct hw_module_t *module) { 54 static GrallocImpl *instance = new GrallocImpl(module); 55 if (instance->IsInitialized()) { 56 return instance; 57 } else { 58 return nullptr; 59 } 60 } 61 62 private: 63 static inline void Dump(gralloc1_device_t *device, uint32_t *out_size, 64 char *out_buffer); 65 static inline gralloc1_error_t CheckDeviceAndHandle(gralloc1_device_t *device, 66 buffer_handle_t buffer); 67 static int32_t CreateBufferDescriptor(gralloc1_device_t *device, 68 gralloc1_buffer_descriptor_t *out_descriptor); 69 static int32_t DestroyBufferDescriptor(gralloc1_device_t *device, 70 gralloc1_buffer_descriptor_t descriptor); 71 static int32_t SetConsumerUsage(gralloc1_device_t *device, 72 gralloc1_buffer_descriptor_t descriptor, 73 uint64_t /*gralloc1_consumer_usage_t*/ usage); 74 static int32_t SetBufferDimensions(gralloc1_device_t *device, 75 gralloc1_buffer_descriptor_t descriptor, 76 uint32_t width, uint32_t height); 77 static int32_t SetColorFormat(gralloc1_device_t *device, 78 gralloc1_buffer_descriptor_t descriptor, int32_t format); 79 static int32_t SetLayerCount(gralloc1_device_t *device, 80 gralloc1_buffer_descriptor_t descriptor, 81 uint32_t layer_count); 82 static int32_t SetProducerUsage(gralloc1_device_t *device, 83 gralloc1_buffer_descriptor_t descriptor, 84 uint64_t /*gralloc1_producer_usage_t*/ usage); 85 static int32_t GetBackingStore(gralloc1_device_t *device, buffer_handle_t buffer, 86 gralloc1_backing_store_t *out_store); 87 static int32_t GetConsumerUsage(gralloc1_device_t *device, buffer_handle_t buffer, 88 uint64_t /*gralloc1_consumer_usage_t*/ *out_usage); 89 static int32_t GetBufferDimensions(gralloc1_device_t *device, buffer_handle_t buffer, 90 uint32_t *out_width, uint32_t *out_height); 91 static int32_t GetColorFormat(gralloc1_device_t *device, buffer_handle_t descriptor, 92 int32_t *outFormat); 93 static int32_t GetLayerCount(gralloc1_device_t *device, buffer_handle_t buffer, 94 uint32_t *out_layer_count); 95 static int32_t GetProducerUsage(gralloc1_device_t *device, buffer_handle_t buffer, 96 uint64_t /*gralloc1_producer_usage_t*/ *out_usage); 97 static int32_t GetBufferStride(gralloc1_device_t *device, buffer_handle_t buffer, 98 uint32_t *out_stride); 99 static int32_t AllocateBuffers(gralloc1_device_t *device, uint32_t num_dptors, 100 const gralloc1_buffer_descriptor_t *descriptors, 101 buffer_handle_t *out_buffers); 102 static int32_t RetainBuffer(gralloc1_device_t *device, buffer_handle_t buffer); 103 static int32_t ReleaseBuffer(gralloc1_device_t *device, buffer_handle_t buffer); 104 static int32_t GetNumFlexPlanes(gralloc1_device_t *device, buffer_handle_t buffer, 105 uint32_t *out_num_planes); 106 static int32_t LockBuffer(gralloc1_device_t *device, buffer_handle_t buffer, 107 uint64_t /*gralloc1_producer_usage_t*/ prod_usage, 108 uint64_t /*gralloc1_consumer_usage_t*/ cons_usage, 109 const gralloc1_rect_t *region, void **out_data, 110 int32_t acquire_fence); 111 static int32_t LockFlex(gralloc1_device_t *device, buffer_handle_t buffer, 112 uint64_t /*gralloc1_producer_usage_t*/ prod_usage, 113 uint64_t /*gralloc1_consumer_usage_t*/ cons_usage, 114 const gralloc1_rect_t *region, 115 struct android_flex_layout *out_flex_layout, 116 int32_t acquire_fence); 117 118 static int32_t UnlockBuffer(gralloc1_device_t *device, buffer_handle_t buffer, 119 int32_t *release_fence); 120 static int32_t Gralloc1Perform(gralloc1_device_t *device, int operation, ...); 121 122 gralloc1_error_t CreateBufferDescriptorLocked(gralloc1_buffer_descriptor_t *descriptor_id); 123 gralloc1_error_t DestroyBufferDescriptorLocked(gralloc1_buffer_descriptor_t descriptor_id); 124 gralloc1_error_t AllocateBuffer(const gralloc1_buffer_descriptor_t *descriptor_ids, 125 buffer_handle_t *out_buffers); 126 int32_t GetFlexLayout(const private_handle_t *hnd, struct android_flex_layout *layout); 127 128 template <typename... Args> CallBufferDescriptorFunction(gralloc1_buffer_descriptor_t descriptor_id,void (BufferDescriptor::* member)(Args...),Args...args)129 int32_t CallBufferDescriptorFunction(gralloc1_buffer_descriptor_t descriptor_id, 130 void (BufferDescriptor::*member)(Args...), 131 Args... args) { 132 std::lock_guard<std::mutex> lock(descriptor_lock_); 133 const auto map_descriptor = descriptors_map_.find(descriptor_id); 134 if (map_descriptor == descriptors_map_.end()) { 135 return GRALLOC1_ERROR_BAD_DESCRIPTOR; 136 } 137 const auto descriptor = map_descriptor->second; 138 (descriptor.get()->*member)(std::forward<Args>(args)...); 139 return GRALLOC1_ERROR_NONE; 140 } 141 142 explicit GrallocImpl(const hw_module_t *module); 143 ~GrallocImpl(); 144 bool Init(); IsInitialized()145 bool IsInitialized() const { return initialized_; } 146 147 BufferManager *buf_mgr_ = NULL; 148 bool initialized_ = false; 149 std::mutex descriptor_lock_; 150 std::unordered_map<gralloc1_buffer_descriptor_t, std::shared_ptr<gralloc::BufferDescriptor>> 151 descriptors_map_ = {}; 152 static std::atomic<uint64_t> next_descriptor_id_; 153 }; 154 155 } // namespace gralloc 156 157 #endif // __GR_DEVICE_IMPL_H__ 158