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      1 /*
      2  * Copyright 2016 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #ifndef LIBVULKAN_DRIVER_H
     18 #define LIBVULKAN_DRIVER_H 1
     19 
     20 #include <inttypes.h>
     21 
     22 #include <bitset>
     23 #include <type_traits>
     24 
     25 #include <log/log.h>
     26 
     27 #include <vulkan/vulkan.h>
     28 #include <hardware/hwvulkan.h>
     29 
     30 #include "api_gen.h"
     31 #include "driver_gen.h"
     32 #include "debug_report.h"
     33 #include "swapchain.h"
     34 
     35 namespace vulkan {
     36 
     37 // This is here so that we can embed api::{Instance,Device}Data in
     38 // driver::{Instance,Device}Data to avoid pointer chasing.  They are
     39 // considered opaque to the driver layer.
     40 namespace api {
     41 
     42 struct InstanceData {
     43     InstanceDispatchTable dispatch;
     44 
     45     // LayerChain::ActiveLayer array
     46     void* layers;
     47     uint32_t layer_count;
     48 
     49     // debug.vulkan.enable_callback
     50     PFN_vkDestroyDebugReportCallbackEXT destroy_debug_callback;
     51     VkDebugReportCallbackEXT debug_callback;
     52 };
     53 
     54 struct DeviceData {
     55     DeviceDispatchTable dispatch;
     56 };
     57 
     58 }  // namespace api
     59 
     60 namespace driver {
     61 
     62 VK_DEFINE_HANDLE(InstanceDispatchable)
     63 VK_DEFINE_HANDLE(DeviceDispatchable)
     64 
     65 struct InstanceData {
     66     explicit InstanceData(const VkAllocationCallbacks& alloc)
     67         : opaque_api_data(),
     68           allocator(alloc),
     69           driver(),
     70           get_device_proc_addr(nullptr) {
     71         hook_extensions.set(ProcHook::EXTENSION_CORE);
     72     }
     73 
     74     api::InstanceData opaque_api_data;
     75 
     76     const VkAllocationCallbacks allocator;
     77 
     78     std::bitset<ProcHook::EXTENSION_COUNT> hook_extensions;
     79 
     80     InstanceDriverTable driver;
     81     PFN_vkGetDeviceProcAddr get_device_proc_addr;
     82 
     83     DebugReportCallbackList debug_report_callbacks;
     84 };
     85 
     86 struct DeviceData {
     87     DeviceData(const VkAllocationCallbacks& alloc,
     88                const DebugReportCallbackList& debug_report_callbacks_)
     89         : opaque_api_data(),
     90           allocator(alloc),
     91           debug_report_callbacks(debug_report_callbacks_),
     92           driver() {
     93         hook_extensions.set(ProcHook::EXTENSION_CORE);
     94     }
     95 
     96     api::DeviceData opaque_api_data;
     97 
     98     const VkAllocationCallbacks allocator;
     99     const DebugReportCallbackList& debug_report_callbacks;
    100 
    101     std::bitset<ProcHook::EXTENSION_COUNT> hook_extensions;
    102 
    103     VkDevice driver_device;
    104     DeviceDriverTable driver;
    105     uint32_t driver_version;
    106 };
    107 
    108 bool Debuggable();
    109 bool OpenHAL();
    110 const VkAllocationCallbacks& GetDefaultAllocator();
    111 
    112 bool QueryPresentationProperties(
    113     VkPhysicalDevice physicalDevice,
    114     VkPhysicalDevicePresentationPropertiesANDROID *presentation_properties);
    115 
    116 // clang-format off
    117 VKAPI_ATTR PFN_vkVoidFunction GetInstanceProcAddr(VkInstance instance, const char* pName);
    118 VKAPI_ATTR PFN_vkVoidFunction GetDeviceProcAddr(VkDevice device, const char* pName);
    119 VKAPI_ATTR VkResult EnumerateInstanceExtensionProperties(const char* pLayerName, uint32_t* pPropertyCount, VkExtensionProperties* pProperties);
    120 
    121 VKAPI_ATTR VkResult EnumerateDeviceExtensionProperties(VkPhysicalDevice physicalDevice, const char* pLayerName, uint32_t* pPropertyCount, VkExtensionProperties* pProperties);
    122 
    123 VKAPI_ATTR VkResult CreateInstance(const VkInstanceCreateInfo* pCreateInfo, const VkAllocationCallbacks* pAllocator, VkInstance* pInstance);
    124 VKAPI_ATTR void DestroyInstance(VkInstance instance, const VkAllocationCallbacks* pAllocator);
    125 VKAPI_ATTR VkResult CreateDevice(VkPhysicalDevice physicalDevice, const VkDeviceCreateInfo* pCreateInfo, const VkAllocationCallbacks* pAllocator, VkDevice* pDevice);
    126 VKAPI_ATTR void DestroyDevice(VkDevice device, const VkAllocationCallbacks* pAllocator);
    127 
    128 VKAPI_ATTR VkResult EnumeratePhysicalDevices(VkInstance instance, uint32_t* pPhysicalDeviceCount, VkPhysicalDevice* pPhysicalDevices);
    129 VKAPI_ATTR void GetDeviceQueue(VkDevice device, uint32_t queueFamilyIndex, uint32_t queueIndex, VkQueue* pQueue);
    130 VKAPI_ATTR VkResult AllocateCommandBuffers(VkDevice device, const VkCommandBufferAllocateInfo* pAllocateInfo, VkCommandBuffer* pCommandBuffers);
    131 // clang-format on
    132 
    133 template <typename DispatchableType>
    134 void StaticAssertDispatchable(DispatchableType) {
    135     static_assert(
    136         std::is_same<DispatchableType, VkInstance>::value ||
    137             std::is_same<DispatchableType, VkPhysicalDevice>::value ||
    138             std::is_same<DispatchableType, VkDevice>::value ||
    139             std::is_same<DispatchableType, InstanceDispatchable>::value ||
    140             std::is_same<DispatchableType, VkQueue>::value ||
    141             std::is_same<DispatchableType, VkCommandBuffer>::value ||
    142             std::is_same<DispatchableType, DeviceDispatchable>::value,
    143         "unrecognized dispatchable type");
    144 }
    145 
    146 template <typename DispatchableType>
    147 bool SetDataInternal(DispatchableType dispatchable, const void* data) {
    148     StaticAssertDispatchable(dispatchable);
    149 
    150     hwvulkan_dispatch_t* dispatch =
    151         reinterpret_cast<hwvulkan_dispatch_t*>(dispatchable);
    152     // must be magic or already set
    153     if (dispatch->magic != HWVULKAN_DISPATCH_MAGIC && dispatch->vtbl != data) {
    154         ALOGE("invalid dispatchable object magic 0x%" PRIxPTR, dispatch->magic);
    155         return false;
    156     }
    157 
    158     dispatch->vtbl = data;
    159 
    160     return true;
    161 }
    162 
    163 template <typename DispatchableType>
    164 void* GetDataInternal(DispatchableType dispatchable) {
    165     StaticAssertDispatchable(dispatchable);
    166 
    167     const hwvulkan_dispatch_t* dispatch =
    168         reinterpret_cast<const hwvulkan_dispatch_t*>(dispatchable);
    169 
    170     return const_cast<void*>(dispatch->vtbl);
    171 }
    172 
    173 inline bool SetData(VkInstance instance, const InstanceData& data) {
    174     return SetDataInternal(instance, &data);
    175 }
    176 
    177 inline bool SetData(VkPhysicalDevice physical_dev, const InstanceData& data) {
    178     return SetDataInternal(physical_dev, &data);
    179 }
    180 
    181 inline bool SetData(InstanceDispatchable dispatchable,
    182                     const InstanceData& data) {
    183     return SetDataInternal(dispatchable, &data);
    184 }
    185 
    186 inline bool SetData(VkDevice dev, const DeviceData& data) {
    187     return SetDataInternal(dev, &data);
    188 }
    189 
    190 inline bool SetData(VkQueue queue, const DeviceData& data) {
    191     return SetDataInternal(queue, &data);
    192 }
    193 
    194 inline bool SetData(VkCommandBuffer cmd, const DeviceData& data) {
    195     return SetDataInternal(cmd, &data);
    196 }
    197 
    198 inline bool SetData(DeviceDispatchable dispatchable, const DeviceData& data) {
    199     return SetDataInternal(dispatchable, &data);
    200 }
    201 
    202 inline InstanceData& GetData(VkInstance instance) {
    203     return *reinterpret_cast<InstanceData*>(GetDataInternal(instance));
    204 }
    205 
    206 inline InstanceData& GetData(VkPhysicalDevice physical_dev) {
    207     return *reinterpret_cast<InstanceData*>(GetDataInternal(physical_dev));
    208 }
    209 
    210 inline InstanceData& GetData(InstanceDispatchable dispatchable) {
    211     return *reinterpret_cast<InstanceData*>(GetDataInternal(dispatchable));
    212 }
    213 
    214 inline DeviceData& GetData(VkDevice dev) {
    215     return *reinterpret_cast<DeviceData*>(GetDataInternal(dev));
    216 }
    217 
    218 inline DeviceData& GetData(VkQueue queue) {
    219     return *reinterpret_cast<DeviceData*>(GetDataInternal(queue));
    220 }
    221 
    222 inline DeviceData& GetData(VkCommandBuffer cmd) {
    223     return *reinterpret_cast<DeviceData*>(GetDataInternal(cmd));
    224 }
    225 
    226 inline DeviceData& GetData(DeviceDispatchable dispatchable) {
    227     return *reinterpret_cast<DeviceData*>(GetDataInternal(dispatchable));
    228 }
    229 
    230 template <typename DispatchableType>
    231 const DebugReportLogger Logger(DispatchableType dispatchable) {
    232     return DebugReportLogger(GetData(dispatchable).debug_report_callbacks);
    233 }
    234 
    235 }  // namespace driver
    236 }  // namespace vulkan
    237 
    238 #endif  // LIBVULKAN_DRIVER_H
    239