Partially Revert "Remove function to pass address of wgpuInstanceCreateSurface."

This reverts commit 8c2f255906.

examples/triangle-webgpu.c

@@ -73,8 +73,16 @@ int main(void)
         exit(EXIT_FAILURE);
     }
 
-    WGPUAdapter adapter;
     WGPUSurface surface = glfwCreateWindowWGPUSurface(instance, window);
+    if (!surface)
+    {
+        fprintf(stderr, "Error: Failed to create WebGPU surface.\n");
+        wgpuInstanceRelease(instance);
+        glfwDestroyWindow(window);
+        glfwTerminate();
+        exit(EXIT_FAILURE);
+    }
+    WGPUAdapter adapter;
     WGPUDevice device;
     WGPUQueue queue;
     bool success = false;

include/GLFW/glfw3.h

@@ -6536,6 +6536,19 @@ GLFWAPI VkResult glfwCreateWindowSurface(VkInstance instance, GLFWwindow* window
 
 #if defined(WEBGPU_H_)
 
+/*! @brief Provide the address of the `wgpuInstanceCreateSurface` function to GLFW.
+ *
+ * This function passes the address provided for the `wgpuInstanceCreateSurface` function
+ * to GLFW.
+ *
+ * @param[in] addr The address of the `wgpuInstanceCreateSurface` function.
+ *
+ * @since Added in version 3.5
+ *
+ * @ingroup webgpu
+ */
+GLFWAPI void glfwSetWGPUInstanceCreateSurfaceAddr(WGPUSurface (*addr)(WGPUInstance, const WGPUSurfaceDescriptor*));
+
 /*! @brief Creates a WebGPU surface for the specified window.
  * 
  * This function creates a WebGPU surface for the specified window.

src/internal.h

@@ -367,7 +367,8 @@ typedef struct WGPUSurfaceDescriptor
     WGPUStringView label;
 } WGPUSurfaceDescriptor;
 
-extern WGPUSurface wgpuInstanceCreateSurface(WGPUInstance instance, const WGPUSurfaceDescriptor* descriptor) __attribute((weak));
+typedef WGPUSurface (*PFN_wgpuInstanceCreateSurface)(WGPUInstance, const WGPUSurfaceDescriptor*);
+#define wgpuInstanceCreateSurface _glfw.wgpu.instanceCreateSurface
 
 #include "platform.h"
 
@@ -914,6 +915,10 @@ struct _GLFWlibrary
         GLFWbool        EXT_headless_surface;
     } vk;
 
+    struct {
+        PFN_wgpuInstanceCreateSurface instanceCreateSurface;
+    } wgpu;
+
     struct {
         GLFWmonitorfun  monitor;
         GLFWjoystickfun joystick;

src/webgpu.c

@@ -29,6 +29,12 @@
 #include <assert.h>
 #include <stdlib.h>
 
+GLFWAPI void glfwSetWGPUInstanceCreateSurfaceAddr(WGPUSurface (*addr)(WGPUInstance, const WGPUSurfaceDescriptor*))
+{
+    _GLFW_REQUIRE_INIT()
+    _glfw.wgpu.instanceCreateSurface = addr;
+}
+
 GLFWAPI WGPUSurface glfwCreateWindowWGPUSurface(WGPUInstance instance, GLFWwindow* handle)
 {
     _GLFW_REQUIRE_INIT_OR_RETURN(NULL)
@@ -37,7 +43,7 @@ GLFWAPI WGPUSurface glfwCreateWindowWGPUSurface(WGPUInstance instance, GLFWwindo
 
     assert(window != NULL);
     assert(instance != NULL);
-    assert(&wgpuInstanceCreateSurface != NULL);
+    assert(_glfw.wgpu.instanceCreateSurface != NULL);
 
     if (window->context.client != GLFW_NO_API)
     {