obs-transitions: Nonlinear SRGB, swipe

Switch back for now. Maybe we want CIELUV, but that's expensive.

plugins/obs-transitions/transition-swipe.c

@@ -88,26 +88,12 @@ static void swipe_callback(void *data, gs_texture_t *a, gs_texture_t *b,
 
 	vec2_mulf(&swipe_val, &swipe_val, swipe->swipe_in ? 1.0f - t : t);
 
-	const bool linear_srgb = gs_get_linear_srgb();
-
-	const bool previous = gs_framebuffer_srgb_enabled();
-	gs_enable_framebuffer_srgb(linear_srgb);
-
-	gs_texture_t *t0 = swipe->swipe_in ? b : a;
-	gs_texture_t *t1 = swipe->swipe_in ? a : b;
-	if (linear_srgb) {
-		gs_effect_set_texture_srgb(swipe->a_param, t0);
-		gs_effect_set_texture_srgb(swipe->b_param, t1);
-	} else {
-		gs_effect_set_texture(swipe->a_param, t0);
-		gs_effect_set_texture(swipe->b_param, t1);
-	}
+	gs_effect_set_texture(swipe->a_param, swipe->swipe_in ? b : a);
+	gs_effect_set_texture(swipe->b_param, swipe->swipe_in ? a : b);
 	gs_effect_set_vec2(swipe->swipe_param, &swipe_val);
 
 	while (gs_effect_loop(swipe->effect, "Swipe"))
 		gs_draw_sprite(NULL, 0, cx, cy);
-
-	gs_enable_framebuffer_srgb(previous);
 }
 
 static void swipe_video_render(void *data, gs_effect_t *effect)