Rasterizer refactor hotfixes (#6465)

* texture_codec: Clamp buffer end to tiled buffer size

* Fixes crash on Pokemon Super Mystery Dungeon

* rasterizer_cache: Use rect for duplicate surface

* Fixes broken bloom in fire emblem

* surface_params: Check levels for exact match

* It was removed previously to prevent copies when games used the base level of a multi level surface. FE on the other hand will first use the base level and then use it as a face of a cubemap with many levels. So instead check if the surface equal or more levels and consider it an exact match in that case

* gl_texture_runtime: Bind old tex to 2D target

* Fixes a small error opengl would print when creating texture cubes

* gl_blit_helper: Fix nearest filter

* Use texture unit 2 which has the nearest sampler bound

src/video_core/renderer_opengl/gl_blit_helper.cpp

@@ -166,6 +166,7 @@ void BlitHelper::FilterBicubic(Surface& surface, const VideoCore::TextureBlit& b
 }
 
 void BlitHelper::FilterNearest(Surface& surface, const VideoCore::TextureBlit& blit) {
+    state.texture_units[2].texture_2d = surface.Handle(false);
     SetParams(nearest_program, surface.width, surface.height, blit.src_rect);
     Draw(nearest_program, surface.Handle(), filter_fbo.handle, blit.dst_level, blit.dst_rect);
 }

src/video_core/renderer_opengl/gl_texture_runtime.cpp

@@ -199,7 +199,7 @@ Allocation TextureRuntime::Allocate(const VideoCore::SurfaceParams& params) {
         handles[1] = textures[1].handle;
     }
 
-    glBindTexture(target, old_tex);
+    glBindTexture(GL_TEXTURE_2D, old_tex);
 
     return Allocation{
         .textures = std::move(textures),