From 5a079a2d114f96d4847d1ee305d5b7c16eeec50e Mon Sep 17 00:00:00 2001 From: 3gg <3gg@shellblade.net> Date: Sat, 27 Dec 2025 12:03:39 -0800 Subject: Initial commit --- .../src/video/android/SDL_androidvulkan.c | 171 +++++++++++++++++++++ 1 file changed, 171 insertions(+) create mode 100644 contrib/SDL-3.2.8/src/video/android/SDL_androidvulkan.c (limited to 'contrib/SDL-3.2.8/src/video/android/SDL_androidvulkan.c') diff --git a/contrib/SDL-3.2.8/src/video/android/SDL_androidvulkan.c b/contrib/SDL-3.2.8/src/video/android/SDL_androidvulkan.c new file mode 100644 index 0000000..4d38388 --- /dev/null +++ b/contrib/SDL-3.2.8/src/video/android/SDL_androidvulkan.c @@ -0,0 +1,171 @@ +/* + Simple DirectMedia Layer + Copyright (C) 1997-2025 Sam Lantinga + + This software is provided 'as-is', without any express or implied + warranty. In no event will the authors be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + 2. Altered source versions must be plainly marked as such, and must not be + misrepresented as being the original software. + 3. This notice may not be removed or altered from any source distribution. +*/ + +/* + * @author Mark Callow, www.edgewise-consulting.com. Based on Jacob Lifshay's + * SDL_x11vulkan.c. + */ + +#include "SDL_internal.h" + +#if defined(SDL_VIDEO_VULKAN) && defined(SDL_VIDEO_DRIVER_ANDROID) + +#include "../SDL_vulkan_internal.h" + +#include "SDL_androidvideo.h" +#include "SDL_androidwindow.h" + +#include "SDL_androidvulkan.h" + + +bool Android_Vulkan_LoadLibrary(SDL_VideoDevice *_this, const char *path) +{ + VkExtensionProperties *extensions = NULL; + Uint32 i, extensionCount = 0; + bool hasSurfaceExtension = false; + bool hasAndroidSurfaceExtension = false; + PFN_vkGetInstanceProcAddr vkGetInstanceProcAddr = NULL; + if (_this->vulkan_config.loader_handle) { + return SDL_SetError("Vulkan already loaded"); + } + + // Load the Vulkan loader library + if (!path) { + path = SDL_GetHint(SDL_HINT_VULKAN_LIBRARY); + } + if (!path) { + path = "libvulkan.so"; + } + _this->vulkan_config.loader_handle = SDL_LoadObject(path); + if (!_this->vulkan_config.loader_handle) { + return false; + } + SDL_strlcpy(_this->vulkan_config.loader_path, path, + SDL_arraysize(_this->vulkan_config.loader_path)); + vkGetInstanceProcAddr = (PFN_vkGetInstanceProcAddr)SDL_LoadFunction( + _this->vulkan_config.loader_handle, "vkGetInstanceProcAddr"); + if (!vkGetInstanceProcAddr) { + goto fail; + } + _this->vulkan_config.vkGetInstanceProcAddr = (void *)vkGetInstanceProcAddr; + _this->vulkan_config.vkEnumerateInstanceExtensionProperties = + (void *)((PFN_vkGetInstanceProcAddr)_this->vulkan_config.vkGetInstanceProcAddr)( + VK_NULL_HANDLE, "vkEnumerateInstanceExtensionProperties"); + if (!_this->vulkan_config.vkEnumerateInstanceExtensionProperties) { + goto fail; + } + extensions = SDL_Vulkan_CreateInstanceExtensionsList( + (PFN_vkEnumerateInstanceExtensionProperties) + _this->vulkan_config.vkEnumerateInstanceExtensionProperties, + &extensionCount); + if (!extensions) { + goto fail; + } + for (i = 0; i < extensionCount; i++) { + if (SDL_strcmp(VK_KHR_SURFACE_EXTENSION_NAME, extensions[i].extensionName) == 0) { + hasSurfaceExtension = true; + } else if (SDL_strcmp(VK_KHR_ANDROID_SURFACE_EXTENSION_NAME, extensions[i].extensionName) == 0) { + hasAndroidSurfaceExtension = true; + } + } + SDL_free(extensions); + if (!hasSurfaceExtension) { + SDL_SetError("Installed Vulkan doesn't implement the " VK_KHR_SURFACE_EXTENSION_NAME " extension"); + goto fail; + } else if (!hasAndroidSurfaceExtension) { + SDL_SetError("Installed Vulkan doesn't implement the " VK_KHR_ANDROID_SURFACE_EXTENSION_NAME "extension"); + goto fail; + } + return true; + +fail: + SDL_UnloadObject(_this->vulkan_config.loader_handle); + _this->vulkan_config.loader_handle = NULL; + return false; +} + +void Android_Vulkan_UnloadLibrary(SDL_VideoDevice *_this) +{ + if (_this->vulkan_config.loader_handle) { + SDL_UnloadObject(_this->vulkan_config.loader_handle); + _this->vulkan_config.loader_handle = NULL; + } +} + +char const* const* Android_Vulkan_GetInstanceExtensions(SDL_VideoDevice *_this, + Uint32 *count) +{ + static const char *const extensionsForAndroid[] = { + VK_KHR_SURFACE_EXTENSION_NAME, VK_KHR_ANDROID_SURFACE_EXTENSION_NAME + }; + if (count) { + *count = SDL_arraysize(extensionsForAndroid); + } + return extensionsForAndroid; +} + +bool Android_Vulkan_CreateSurface(SDL_VideoDevice *_this, + SDL_Window *window, + VkInstance instance, + const struct VkAllocationCallbacks *allocator, + VkSurfaceKHR *surface) +{ + SDL_WindowData *windowData = window->internal; + PFN_vkGetInstanceProcAddr vkGetInstanceProcAddr = + (PFN_vkGetInstanceProcAddr)_this->vulkan_config.vkGetInstanceProcAddr; + PFN_vkCreateAndroidSurfaceKHR vkCreateAndroidSurfaceKHR = + (PFN_vkCreateAndroidSurfaceKHR)vkGetInstanceProcAddr( + instance, + "vkCreateAndroidSurfaceKHR"); + VkAndroidSurfaceCreateInfoKHR createInfo; + VkResult result; + + if (!_this->vulkan_config.loader_handle) { + return SDL_SetError("Vulkan is not loaded"); + } + + if (!vkCreateAndroidSurfaceKHR) { + return SDL_SetError(VK_KHR_ANDROID_SURFACE_EXTENSION_NAME + " extension is not enabled in the Vulkan instance."); + } + SDL_zero(createInfo); + createInfo.sType = VK_STRUCTURE_TYPE_ANDROID_SURFACE_CREATE_INFO_KHR; + createInfo.pNext = NULL; + createInfo.flags = 0; + createInfo.window = windowData->native_window; + result = vkCreateAndroidSurfaceKHR(instance, &createInfo, allocator, surface); + if (result != VK_SUCCESS) { + return SDL_SetError("vkCreateAndroidSurfaceKHR failed: %s", SDL_Vulkan_GetResultString(result)); + } + return true; +} + +void Android_Vulkan_DestroySurface(SDL_VideoDevice *_this, + VkInstance instance, + VkSurfaceKHR surface, + const struct VkAllocationCallbacks *allocator) +{ + if (_this->vulkan_config.loader_handle) { + SDL_Vulkan_DestroySurface_Internal(_this->vulkan_config.vkGetInstanceProcAddr, instance, surface, allocator); + } +} + +#endif -- cgit v1.2.3