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ReC98/th03/formats/pi.h

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[Maintenance] Clean up PI function declarations and comments
2019-12-15 19:17:00 +00:00
#include "th02/formats/pi.h"
[Reverse-engineering] [th05] Masked PI display As used for the title screen fade-in effect. Another function that apparently was deliberately written to run not that fast, by blitting each row individually to the 400th VRAM row just so that it can then turn on the EGC, perform the *actual* masked blit to the VRAM destination, and then turn the EGC off before moving to the next now. The same effect could have entirely been accomplished by copying graph_pack_put_8() and applying the mask there; it's not like ZUN didn't know how to modify master.lib… (See also 44ad3eb4) --Nmlgc
2019-12-10 07:52:24 +00:00
#define PI_MASK_COUNT 4
#define PI_MASK_H 4
extern const planar16_t PI_MASKS[PI_MASK_COUNT][PI_MASK_H];
[Maintenance] Clean up PI function declarations and comments
2019-12-15 19:17:00 +00:00
// Like pi_slot_put(), but only displays every second row in the given PI.
int pascal pi_slot_put_interlace(int x, int y, int slot);
// Displays the n-th 320x200 [quarter], counted from the top left, of the PI
// image in slot #[slot] at ([x], [y]).
int pascal pi_slot_put_quarter(int x, int y, int slot, int quarter);