load vulkan backend (if compiled always say is avaliable)

Gryphn/CMakeLists.txt

@@ -13,3 +13,6 @@ add_subdirectory(GryphnLoader)
 if (APPLE)
     add_subdirectory(apis/GryphnMetal)
 endif()
+if (UNIX)
+    add_subdirectory(apis/GryphnVulkan)
+endif()

Gryphn/GryphnLoader/CMakeLists.txt

@@ -16,6 +16,9 @@ target_include_directories(GryphnLoader PUBLIC
 if(APPLE)
     target_compile_definitions(GryphnLoader PUBLIC GN_PLATFORM_MACOS)
 endif()
+if (UNIX AND NOT APPLE)
+    target_compile_definitions(GryphnLoader PUBLIC GN_PLATFORM_LINUX)
+endif()
 
 # 4. Links
 if(UNIX AND NOT APPLE)

Gryphn/GryphnLoader/src/backend/gryphn_backend.c

@@ -6,18 +6,32 @@
 
 typedef uint32_t (*PFN_gnInternalIsApiSupported)(gnVersion);
 
-gnReturnCode gnGetAvaliableBackends(gnVersion version, uint32_t* avaliable_backends, gnBackend* backends) {
-    *avaliable_backends = 0;
-    gnLib metalLib = gnLoadLib("bin/gryphn_metal.dylib");
+int gryphn_CheckLib(gnVersion version, const char* name) {
+    gnLib metalLib = gnLoadLib(name);
+        printf("Loading library: %s\n", name);
     if (gnLibValid(&metalLib)) {
         PFN_gnInternalIsApiSupported isSupported = (PFN_gnInternalIsApiSupported)gnLoadLibFunction(&metalLib, "gnInternalIsApiSupported");
         if (isSupported(version) > 0) {
-            if (backends != NULL) {
-                backends[*avaliable_backends] = GN_BACKEND_METAL;
-            }
-            *avaliable_backends += 1;
+            return 1;
         }
         gnCloseLib(&metalLib);
     }
+    return 0;
+}
+
+gnReturnCode gnGetAvaliableBackends(gnVersion version, uint32_t* avaliable_backends, gnBackend* backends) {
+    *avaliable_backends = 0;
+    int metalSupported = gryphn_CheckLib(version, "bin/gryphn_metal.dylib");
+    int vulkanSupported = gryphn_CheckLib(version, "bin/gryphn_vulkan.so");
+    if (metalSupported) {
+        if (backends != NULL)
+            backends[*avaliable_backends] = GN_BACKEND_METAL;
+        *avaliable_backends += 1;
+    }
+    if (vulkanSupported) {
+        if (backends != NULL)
+            backends[*avaliable_backends] = GN_BACKEND_VULKAN;
+        *avaliable_backends += 1;
+    }
     return GN_SUCCESS;
 }

Gryphn/apis/GryphnVulkan/src/vulkan.c

@@ -0,0 +1,34 @@
+#include "stdio.h"
+#include "instance/gryphn_instance.h"
+#include "gryphn_handle.h"
+
+
+uint32_t gnInternalIsApiSupported(gnVersion version) {
+    if (version != gnCreateVersion(1, 0, 0)) return 0;
+    return 1;
+}
+
+// gnReturnCode destroyBackend(gnInstance instance) {
+//     return GN_SUCCESS;
+// }
+
+// gnReturnCode initBackend(gnInstance instance, gnInstanceCreateInfo* info) {
+//     instance->dispatchTable.destroyInstance = destroyBackend;
+//     instance->dispatchTable.enumeratePhysicalDevices = metalEnumeratePhysicalDevices;
+//     instance->dispatchTable.getPhysicalDeviceProperties = metalGetPhysicalDeviceProperties;
+//     instance->dispatchTable.createDevice = metalCreateDevice;
+
+//     for (int i = 0; i < info->enabledExtensionCount; i++) {
+//         if (strcmp(info->enabledExtensions[i], "GN_EXT_surface") == 0) {
+//             instance->dispatchTable.destroySurface = metalDestroySurface;
+//             instance->dispatchTable.getSurfaceCapabilities = metalGetSurfaceCapabilities;
+//             instance->dispatchTable.getSurfaceFormats = metalGetSurfaceFormats;
+//             instance->dispatchTable.getSurfacePresentModes = metalGetSurfacePresentModes;
+//         }
+//         if (strcmp(info->enabledExtensions[i], "GN_EXT_surface_cocoa") == 0) {
+//             instance->dispatchTable.createMetalSurface = metalCreateSurface;
+//         }
+//     }
+
+//     return GN_SUCCESS;
+// }

main.cpp

@@ -115,9 +115,9 @@ int main() {
 
     try {
         createInstance();
-        createDevice();
-        createSurface();
-        createSwapchain();
+        // createDevice();
+        // createSurface();
+        // createSwapchain();
         while (!glfwWindowShouldClose(window)) {
             glfwPollEvents();
         }