Made _shader_custom_gamma_correct optional

Author: twist84

game/source/interface/c_gui_bitmap_widget.cpp

@@ -283,7 +283,10 @@ void __cdecl render_bitmap(s_gui_bitmap_widget_render_data const* render_data, r
 			if (bitmap && bitmap->m_bitmap_ready && &bitmap->m_bitmap_data)
 			{
 				hardware_format_primary = bitmap->m_hardware_format_bitmap;
-				explicit_shader_index = c_rasterizer_globals::_shader_custom_gamma_correct;
+				if (bitmap->m_use_shader_custom_gamma_correct) // added by us
+				{
+					explicit_shader_index = c_rasterizer_globals::_shader_custom_gamma_correct;
+				}
 			}
 		}
 	}

game/source/interface/gui_custom_bitmap_storage.cpp

@@ -50,6 +50,7 @@ void __thiscall c_gui_custom_bitmap_storage_item::initialize(int32 width, int32
 	m_width = m_bitmap_data.width;
 	m_height = m_bitmap_data.height;
 	m_allocated = true;
+	m_use_shader_custom_gamma_correct = false; // added by us
 }
 
 bool __thiscall c_gui_custom_bitmap_storage_item::initialize_raw(int32 width, int32 height, char* buffer, int32 buffer_length, bool cpu_cached)

game/source/interface/gui_custom_bitmap_storage.hpp

@@ -20,7 +20,8 @@ struct c_gui_custom_bitmap_storage_item
 	bool m_use_compressed_format;
 	bitmap_data m_bitmap_data;
 	bool m_allocated;
-	byte pad[0x3];
+	bool m_use_shader_custom_gamma_correct; // added by us
+	byte pad[0x2]; // 0x3
 	c_rasterizer_texture_ref m_hardware_format_bitmap;
 	bool m_bitmap_ready;
 	char* m_bitmap_pixel_buffer_allocation;