AGI: Add support for upscaling and Hercules hires font

- User option to force Hercules hires font for any rendering mode
- Also change mouse cursor hotspots from 1,1 to 0,0
- Fix inaccuracy in mouse controlled game menu
- Change render_Block(), drawBox(), drawDisplayRect() to use
  upper Y instead of lower Y. Original AGI uses lower Y, but
  upper Y makes upscaling way easier.

1 files changed, 1 insertions, 1 deletions

diff --git a/engines/agi/text.h b/engines/agi/text.h
index 72d012b917..7e9228e30a 100644
--- a/engines/agi/text.h
+++ b/engines/agi/text.h
@@ -55,7 +55,7 @@ struct MessageState_Struct {
 	uint16 printed_Height;
 
 	int16 backgroundPos_x;
-	int16 backgroundPos_y;
+	int16 backgroundPos_y; // original AGI used lowerY here, we use upperY so that upscaling is easier
 	int16 backgroundSize_Width;
 	int16 backgroundSize_Height;
 };