From 867d2033cd6c1bdc2e9122968ef880b6eef561b7 Mon Sep 17 00:00:00 2001
From: Recep Aslantas <info@recp.me>
Date: Sat, 7 Oct 2023 23:21:04 +0300
Subject: [PATCH] vk surface

---
 src/backend/vk/impl/surface.c | 86 ++++++++++++++++++++++++++++++++++-
 1 file changed, 84 insertions(+), 2 deletions(-)

diff --git a/src/backend/vk/impl/surface.c b/src/backend/vk/impl/surface.c
index 0a28b85..907cda7 100644
--- a/src/backend/vk/impl/surface.c
+++ b/src/backend/vk/impl/surface.c
@@ -16,15 +16,97 @@
 
 #include "../common.h"
 
+GPU_HIDE
 GPUSurface*
 vk_createSurface(struct GPUApi      * __restrict api,
                  struct GPUInstance * __restrict inst,
                  void               * __restrict nativeHandle,
                  GPUSurfaceType                  type,
                  float                           scale) {
-  GPUSurface *surface;
+  GPUInstanceVk         *instVk;
+  GPUSurface            *gpuSurface;
+  GPUSurfaceVk          *surface;
+  VkResult U_ASSERT_ONLY err;
+
+  instVk            = inst->_priv;
+  gpuSurface        = calloc(1, sizeof(*gpuSurface));
+  gpuSurface->type  = type;
+  gpuSurface->scale = scale;
+  surface           = calloc(1, sizeof(*surface));
+
+  /* TODO: what if a platform supports multiple */
+
+  // Create a WSI surface for the window:
+#if defined(VK_USE_PLATFORM_WIN32_KHR)
+  VkWin32SurfaceCreateInfoKHR createInfo = {0};
+  createInfo.sType     = VK_STRUCTURE_TYPE_WIN32_SURFACE_CREATE_INFO_KHR;
+  createInfo.pNext     = NULL;
+  createInfo.flags     = 0;
+  createInfo.hinstance = instVk->connection;
+  createInfo.hwnd      = instVk->window;
+
+  err = vkCreateWin32SurfaceKHR(instVk->inst, &createInfo, NULL, &surface->surface);
+#elif defined(VK_USE_PLATFORM_WAYLAND_KHR)
+  VkWaylandSurfaceCreateInfoKHR createInfo = {0};
+  createInfo.sType   = VK_STRUCTURE_TYPE_WAYLAND_SURFACE_CREATE_INFO_KHR;
+  createInfo.pNext   = NULL;
+  createInfo.flags   = 0;
+  createInfo.display = instVk->display;
+  createInfo.surface = instVk->window;
+
+  err = vkCreateWaylandSurfaceKHR(instVk->inst, &createInfo, NULL, &surface->surface);
+#elif defined(VK_USE_PLATFORM_ANDROID_KHR)
+  VkAndroidSurfaceCreateInfoKHR createInfo = {0};
+  createInfo.sType  = VK_STRUCTURE_TYPE_ANDROID_SURFACE_CREATE_INFO_KHR;
+  createInfo.pNext  = NULL;
+  createInfo.flags  = 0;
+  createInfo.window = (struct ANativeWindow *)(instVk->window);
+
+  err = vkCreateAndroidSurfaceKHR(instVk->inst, &createInfo, NULL, &surface->surface);
+#elif defined(VK_USE_PLATFORM_XLIB_KHR)
+  VkXlibSurfaceCreateInfoKHR createInfo = {0};
+  createInfo.sType  = VK_STRUCTURE_TYPE_XLIB_SURFACE_CREATE_INFO_KHR;
+  createInfo.pNext  = NULL;
+  createInfo.flags  = 0;
+  createInfo.dpy    = instVk->display;
+  createInfo.window = instVk->xlib_window;
+
+  err = vkCreateXlibSurfaceKHR(instVk->inst, &createInfo, NULL, &surface->surface);
+#elif defined(VK_USE_PLATFORM_XCB_KHR)
+  VkXcbSurfaceCreateInfoKHR createInfo = {0};
+  createInfo.sType      = VK_STRUCTURE_TYPE_XCB_SURFACE_CREATE_INFO_KHR;
+  createInfo.pNext      = NULL;
+  createInfo.flags      = 0;
+  createInfo.connection = instVk->connection;
+  createInfo.window     = instVk->xcb_window;
+
+  err = vkCreateXcbSurfaceKHR(instVk->inst, &createInfo, NULL, &surface->surface);
+#elif defined(VK_USE_PLATFORM_DIRECTFB_EXT)
+  VkDirectFBSurfaceCreateInfoEXT createInfo = {0};
+  createInfo.sType   = VK_STRUCTURE_TYPE_DIRECTFB_SURFACE_CREATE_INFO_EXT;
+  createInfo.pNext   = NULL;
+  createInfo.flags   = 0;
+  createInfo.dfb     = instVk->dfb;
+  createInfo.surface = instVk->window;
+
+  err = vkCreateDirectFBSurfaceEXT(instVk->inst, &createInfo, NULL, &surface->surface);
+#elif defined(VK_USE_PLATFORM_DISPLAY_KHR)
+  err = demo_create_display_surface(demo);
+#elif defined(VK_USE_PLATFORM_METAL_EXT)
+  VkMetalSurfaceCreateInfoEXT createInfo = {0};
+  createInfo.sType  = VK_STRUCTURE_TYPE_METAL_SURFACE_CREATE_INFO_EXT;
+  createInfo.pNext  = NULL;
+  createInfo.flags  = 0;
+  createInfo.pLayer = nativeHandle;
+
+  err = vkCreateMetalSurfaceEXT(instVk->inst, &createInfo, NULL, &surface->surface);
+#endif
+
+  assert(!err);
+
+  gpuSurface->_priv = surface;
 
-  return NULL;
+  return gpuSurface;
 }
 
 GPU_HIDE