ReC98/th04/bgimage.h

// Additional 640×400 4-plane background image buffer.
extern char __seg *bgimage[PL_COUNT];

void pascal bgimage_snap(void);
void pascal bgimage_put(void);
void pascal bgimage_free(void);
// Blits the rectangle from (⌊x/16⌋*16, y) to (⌈((x + w)/16)*16⌉, (y + h))
// on the [bgimage] to the same position in VRAM.
void pascal bgimage_put_rect(
	screen_x_t left, screen_y_t top, pixel_t w, pixel_t h
);
-												[Reverse-engineering] [th04/th05] Music Room / ending background image buffers

"bgimage" really was the best name I could come up with here, given
what it's used for. Everything else sounded way too ambiguous. Even
something like "mempage", in the meaning of "a third memory-backed
graphics page"… --Nmlgc

											
										
										
											2019-12-08 12:09:13 +00:00
+								// Additional 640×400 4-plane background image buffer.
 								extern char __seg *bgimage[PL_COUNT];
 								void pascal bgimage_snap(void);
 								void pascal bgimage_put(void);
 								void pascal bgimage_free(void);
 								// Blits the rectangle from (⌊x/16⌋*16, y) to (⌈((x + w)/16)*16⌉, (y + h))
-												[Maintenance] Proofread all comments in C land

											
										
										
											2020-06-18 18:01:29 +00:00
+								// on the [bgimage] to the same position in VRAM.
-												[Maintenance] Declare distinct types for pixel and VRAM sizes

Oh wait, we also need one of those for an upcoming structure!

Part of P0111, funded by [Anonymous] and Blue Bolt.

											
										
										
											2020-08-21 18:13:08 +00:00
+								void pascal bgimage_put_rect(
 									screen_x_t left, screen_y_t top, pixel_t w, pixel_t h
 								);