Ben Clayton | 654540e | 2019-02-01 13:08:23 +0000 | [diff] [blame] | 1 | // Copyright 2019 The SwiftShader Authors. All Rights Reserved. |
| 2 | // |
| 3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | // you may not use this file except in compliance with the License. |
| 5 | // You may obtain a copy of the License at |
| 6 | // |
| 7 | // http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | // |
| 9 | // Unless required by applicable law or agreed to in writing, software |
| 10 | // distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | // See the License for the specific language governing permissions and |
| 13 | // limitations under the License. |
| 14 | |
| 15 | #include "Driver.hpp" |
| 16 | |
| 17 | #if defined(_WIN64) |
| 18 | # include "Windows.h" |
| 19 | # define OS_WINDOWS 1 |
| 20 | #elif defined(__APPLE__) |
| 21 | # include "dlfcn.h" |
| 22 | # define OS_MAC 1 |
Stephen White | e6ab01f | 2019-04-04 14:31:25 -0400 | [diff] [blame] | 23 | #elif defined(__ANDROID__) |
| 24 | # include "dlfcn.h" |
| 25 | # define OS_ANDROID 1 |
Ben Clayton | 654540e | 2019-02-01 13:08:23 +0000 | [diff] [blame] | 26 | #elif defined(__linux__) |
| 27 | # include "dlfcn.h" |
| 28 | # define OS_LINUX 1 |
| 29 | #else |
| 30 | # error Unimplemented platform |
| 31 | #endif |
| 32 | |
| 33 | Driver::Driver() : vk_icdGetInstanceProcAddr(nullptr), dll(nullptr) |
| 34 | { |
Ben Clayton | bb50106 | 2019-04-24 20:23:29 +0100 | [diff] [blame] | 35 | #define VK_GLOBAL(N, R, ...) N = nullptr |
Ben Clayton | 654540e | 2019-02-01 13:08:23 +0000 | [diff] [blame] | 36 | #include "VkGlobalFuncs.hpp" |
| 37 | #undef VK_GLOBAL |
| 38 | |
Ben Clayton | bb50106 | 2019-04-24 20:23:29 +0100 | [diff] [blame] | 39 | #define VK_INSTANCE(N, R, ...) N = nullptr |
Ben Clayton | 654540e | 2019-02-01 13:08:23 +0000 | [diff] [blame] | 40 | #include "VkInstanceFuncs.hpp" |
| 41 | #undef VK_INSTANCE |
| 42 | } |
| 43 | |
| 44 | Driver::~Driver() |
| 45 | { |
| 46 | unload(); |
| 47 | } |
| 48 | |
| 49 | bool Driver::loadSwiftShader() |
| 50 | { |
| 51 | #if OS_WINDOWS |
| 52 | # if defined(NDEBUG) |
Ben Clayton | 64b761a | 2019-04-13 10:20:37 -0400 | [diff] [blame] | 53 | return load("./build/Release/libvk_swiftshader.dll"); |
Ben Clayton | 654540e | 2019-02-01 13:08:23 +0000 | [diff] [blame] | 54 | # else |
Ben Clayton | 64b761a | 2019-04-13 10:20:37 -0400 | [diff] [blame] | 55 | return load("./build/Debug/libvk_swiftshader.dll"); |
Ben Clayton | 654540e | 2019-02-01 13:08:23 +0000 | [diff] [blame] | 56 | # endif |
| 57 | #elif OS_MAC |
Dan Sinclair | 1b8cd2d | 2019-03-14 10:51:05 -0400 | [diff] [blame] | 58 | return load("./build/Darwin/libvk_swiftshader.dylib"); |
Ben Clayton | 654540e | 2019-02-01 13:08:23 +0000 | [diff] [blame] | 59 | #elif OS_LINUX |
Dan Sinclair | 1b8cd2d | 2019-03-14 10:51:05 -0400 | [diff] [blame] | 60 | return load("./build/Linux/libvk_swiftshader.so"); |
Stephen White | e6ab01f | 2019-04-04 14:31:25 -0400 | [diff] [blame] | 61 | #elif OS_ANDROID |
| 62 | return load("libvk_swiftshader.so"); |
Ben Clayton | 654540e | 2019-02-01 13:08:23 +0000 | [diff] [blame] | 63 | #else |
| 64 | # error Unimplemented platform |
| 65 | #endif |
| 66 | } |
| 67 | |
| 68 | bool Driver::loadSystem() |
| 69 | { |
| 70 | #if OS_LINUX |
| 71 | return load("libvulkan.so.1"); |
| 72 | #else |
| 73 | return false; |
| 74 | #endif |
| 75 | } |
| 76 | |
| 77 | bool Driver::load(const char* path) |
| 78 | { |
| 79 | #if OS_WINDOWS |
| 80 | dll = LoadLibraryA(path); |
Stephen White | e6ab01f | 2019-04-04 14:31:25 -0400 | [diff] [blame] | 81 | #elif(OS_MAC || OS_LINUX || OS_ANDROID) |
Ben Clayton | 654540e | 2019-02-01 13:08:23 +0000 | [diff] [blame] | 82 | dll = dlopen(path, RTLD_LAZY | RTLD_LOCAL); |
| 83 | #else |
| 84 | return false; |
| 85 | #endif |
| 86 | if(dll == nullptr) |
| 87 | { |
| 88 | return false; |
| 89 | } |
| 90 | |
| 91 | // Is the driver an ICD? |
| 92 | if(!lookup(&vk_icdGetInstanceProcAddr, "vk_icdGetInstanceProcAddr")) |
| 93 | { |
| 94 | // Nope, attempt to use the loader version. |
| 95 | if(!lookup(&vk_icdGetInstanceProcAddr, "vkGetInstanceProcAddr")) |
| 96 | { |
| 97 | return false; |
| 98 | } |
| 99 | } |
| 100 | |
| 101 | #define VK_GLOBAL(N, R, ...) \ |
| 102 | if(auto pfn = vk_icdGetInstanceProcAddr(nullptr, #N)) \ |
| 103 | { \ |
| 104 | N = reinterpret_cast<decltype(N)>(pfn); \ |
| 105 | } |
| 106 | #include "VkGlobalFuncs.hpp" |
| 107 | #undef VK_GLOBAL |
| 108 | |
| 109 | return true; |
| 110 | } |
| 111 | |
| 112 | void Driver::unload() |
| 113 | { |
| 114 | if(!isLoaded()) |
| 115 | { |
| 116 | return; |
| 117 | } |
| 118 | |
| 119 | #if OS_WINDOWS |
| 120 | FreeLibrary((HMODULE)dll); |
| 121 | #elif OS_LINUX |
| 122 | dlclose(dll); |
| 123 | #endif |
| 124 | |
Ben Clayton | bb50106 | 2019-04-24 20:23:29 +0100 | [diff] [blame] | 125 | #define VK_GLOBAL(N, R, ...) N = nullptr |
Ben Clayton | 654540e | 2019-02-01 13:08:23 +0000 | [diff] [blame] | 126 | #include "VkGlobalFuncs.hpp" |
| 127 | #undef VK_GLOBAL |
| 128 | |
Ben Clayton | bb50106 | 2019-04-24 20:23:29 +0100 | [diff] [blame] | 129 | #define VK_INSTANCE(N, R, ...) N = nullptr |
Ben Clayton | 654540e | 2019-02-01 13:08:23 +0000 | [diff] [blame] | 130 | #include "VkInstanceFuncs.hpp" |
| 131 | #undef VK_INSTANCE |
| 132 | } |
| 133 | |
| 134 | bool Driver::isLoaded() const |
| 135 | { |
| 136 | return dll != nullptr; |
| 137 | } |
| 138 | |
| 139 | bool Driver::resolve(VkInstance instance) |
| 140 | { |
| 141 | if(!isLoaded()) |
| 142 | { |
| 143 | return false; |
| 144 | } |
| 145 | |
| 146 | #define VK_INSTANCE(N, R, ...) \ |
| 147 | if(auto pfn = vk_icdGetInstanceProcAddr(instance, #N)) \ |
| 148 | { \ |
| 149 | N = reinterpret_cast<decltype(N)>(pfn); \ |
| 150 | } \ |
| 151 | else \ |
| 152 | { \ |
| 153 | return false; \ |
| 154 | } |
| 155 | #include "VkInstanceFuncs.hpp" |
| 156 | #undef VK_INSTANCE |
| 157 | |
| 158 | return true; |
| 159 | } |
| 160 | |
| 161 | void* Driver::lookup(const char* name) |
| 162 | { |
| 163 | #if OS_WINDOWS |
| 164 | return GetProcAddress((HMODULE)dll, name); |
Stephen White | e6ab01f | 2019-04-04 14:31:25 -0400 | [diff] [blame] | 165 | #elif(OS_MAC || OS_LINUX || OS_ANDROID) |
Ben Clayton | 654540e | 2019-02-01 13:08:23 +0000 | [diff] [blame] | 166 | return dlsym(dll, name); |
| 167 | #else |
| 168 | return nullptr; |
| 169 | #endif |
| 170 | } |