adding D3D11 base, working on Vulkan backend

Sources/PulseInternal.h

@@ -0,0 +1,58 @@
+// Copyright (C) 2024 kanel
+// This file is part of "Pulse"
+// For conditions of distribution and use, see copyright notice in LICENSE
+
+#ifndef PULSE_INTERNAL_H_
+#define PULSE_INTERNAL_H_
+
+#include <Pulse.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef bool (*PulseLoadBackendPFN)(void);
+typedef PulseDevice (*PulseCreateDevicePFN)(PulseDebugLevel);
+
+typedef void (*PulseDestroyDevicePFN)(PulseDevice);
+
+typedef struct PulseDeviceHandler
+{
+	// PFNs
+	PulseDestroyDevicePFN PFN_DestroyDevice;
+
+	// Attributes
+	PulseBackendFlags backend;
+	PulseShaderFormatsFlags supported_shader_formats;
+	PulseDebugLevel debug_level;
+} PulseDeviceHandler;
+
+typedef struct PulseBackendLoader
+{
+	// PFNs
+	PulseLoadBackendPFN PFN_LoadBackend;
+	PulseCreateDevicePFN PFN_CreateDevice;
+
+	// Attributes
+	PulseBackendFlags backend;
+	PulseShaderFormatsFlags supported_shader_formats;
+} PulseBackendLoader;
+
+void PulseSetInternalError(PulseErrorType error);
+
+#define PULSE_LOAD_DRIVER_DEVICE_FUNCTION(fn, _namespace) device->PFN_##fn = _namespace##fn;
+#define PULSE_LOAD_DRIVER_DEVICE(_namespace) \
+	PULSE_LOAD_DRIVER_DEVICE_FUNCTION(DestroyDevice, _namespace) \
+
+#ifdef PULSE_ENABLE_VULKAN_BACKEND
+	extern PulseBackendLoader VulkanDriver;
+#endif // PULSE_ENABLE_VULKAN_BACKEND
+#ifdef PULSE_ENABLE_D3D11_BACKEND
+	extern PulseBackendLoader D3D11Driver;
+#endif // PULSE_ENABLE_D3D11_BACKEND
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // PULSE_INTERNAL_H_