(API Change) libobs/graphics: Change gs_create param

(Non-compiling commit: windowless-context branch)

Changes API from:
---------------------
EXPORT int gs_create(graphics_t **graphics, const char *module,
		const struct gs_init_data *data);

To:
---------------------
EXPORT int gs_create(graphics_t **graphics, const char *module,
		uint32_t adapter);

Summary:
---------------------
Changes the gs_create function to use an adapter parameter instead of
requiring a gs_init_data with window/color/etc information.

libobs/graphics/device-exports.h

@@ -29,7 +29,7 @@ EXPORT bool device_enum_adapters(
 		bool (*callback)(void *param, const char *name, uint32_t id),
 		void *param);
 EXPORT const char *device_preprocessor_name(void);
-EXPORT int device_create(gs_device_t **device, const struct gs_init_data *data);
+EXPORT int device_create(gs_device_t **device, uint32_t adapter);
 EXPORT void device_destroy(gs_device_t *device);
 EXPORT void device_enter_context(gs_device_t *device);
 EXPORT void device_leave_context(gs_device_t *device);

libobs/graphics/graphics-internal.h

@@ -30,8 +30,7 @@ struct gs_exports {
 			bool (*callback)(void*, const char*, uint32_t),
 			void*);
 	const char *(*device_preprocessor_name)(void);
-	int (*device_create)(gs_device_t **device,
-			const struct gs_init_data *data);
+	int (*device_create)(gs_device_t **device, uint32_t adapter);
 	void (*device_destroy)(gs_device_t *device);
 	void (*device_enter_context)(gs_device_t *device);
 	void (*device_leave_context)(gs_device_t *device);

libobs/graphics/graphics.c

@@ -139,19 +139,14 @@ static bool graphics_init(struct graphics_subsystem *graphics)
 	return true;
 }
 
-int gs_create(graphics_t **pgraphics, const char *module,
-		const struct gs_init_data *data)
+int gs_create(graphics_t **pgraphics, const char *module, uint32_t adapter)
 {
-	struct gs_init_data new_data = *data;
 	int errcode = GS_ERROR_FAIL;
 
 	graphics_t *graphics = bzalloc(sizeof(struct graphics_subsystem));
 	pthread_mutex_init_value(&graphics->mutex);
 	pthread_mutex_init_value(&graphics->effect_mutex);
 
-	if (!new_data.num_backbuffers)
-		new_data.num_backbuffers = 1;
-
 	graphics->module = os_dlopen(module);
 	if (!graphics->module) {
 		errcode = GS_ERROR_MODULE_NOT_FOUND;
@@ -162,7 +157,7 @@ int gs_create(graphics_t **pgraphics, const char *module,
 	                           module))
 		goto error;
 
-	errcode = graphics->exports.device_create(&graphics->device, &new_data);
+	errcode = graphics->exports.device_create(&graphics->device, adapter);
 	if (errcode != GS_SUCCESS)
 		goto error;
 

libobs/graphics/graphics.h

@@ -452,7 +452,7 @@ EXPORT void gs_enum_adapters(
 		void *param);
 
 EXPORT int gs_create(graphics_t **graphics, const char *module,
-		const struct gs_init_data *data);
+		uint32_t adapter);
 EXPORT void gs_destroy(graphics_t *graphics);
 
 EXPORT void gs_enter_context(graphics_t *graphics);