gl_texture_cache: Initial implementation

src/video_core/textures/decoders.cpp

@@ -359,7 +359,8 @@ std::size_t CalculateSize(bool tiled, u32 bytes_per_pixel, u32 width, u32 height
         const u32 aligned_width = Common::AlignUp(width * bytes_per_pixel, gob_size_x);
         const u32 aligned_height = Common::AlignUp(height, gob_size_y * block_height);
         const u32 aligned_depth = Common::AlignUp(depth, gob_size_z * block_depth);
-        return aligned_width * aligned_height * aligned_depth;
+        const u32 size = aligned_width * aligned_height * aligned_depth;
+        return size;
     } else {
         return width * height * depth * bytes_per_pixel;
     }