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Merge pull request #1861 from libretro/arcadez2003-patch-1-1

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Gfx improvements for Magical Cat Adventure and Nostradamus
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arcadez2003 2024-10-04 10:19:24 +01:00 committed by GitHub
commit c9428ec1c1
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1 changed files with 58 additions and 36 deletions
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94
src/vidhrdw/mcatadv_vidhrdw.c
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@ -3,12 +3,11 @@
/*
Notes:
Tilemap drawing is a killer on the first level of Nost due to the whole tilemap being dirty every frame.
Sprite drawing is quite fast (See USER1 in the profiler), but requires blit-time rotation support
Sprite drawing is quite fast (See USER1 in the profiler)
Nost final boss, the priority of the arms is under the tilemaps, everything else is above. Should it be blended? i.e. Shadow.
There is an area of vid ram for linescroll, nost tests it but doesn't appear to use it.
ToDo: Fix Sprites for Cocktail
ToDo: Fix Sprites & Rowscroll/Select for Cocktail
*/
#include "driver.h"
@ -163,9 +162,55 @@ static void mcatadv_drawsprites ( struct mame_bitmap *bitmap, const struct recta
}
}
static void mcatadv_draw_tilemap_part(UINT16* current_scroll, UINT16* current_videoram1, int i, struct tilemap* current_tilemap, struct mame_bitmap *bitmap, const struct rectangle *cliprect)
{
int flip;
unsigned int drawline;
struct rectangle clip;
clip.min_x = cliprect->min_x;
clip.max_x = cliprect->max_x;
for(drawline = cliprect->min_y; drawline <= cliprect->max_y;drawline++)
{
int scrollx, scrolly;
clip.min_y = drawline;
clip.max_y = drawline;
scrollx = (current_scroll[0]&0x1ff)-0x194;
scrolly = (current_scroll[1]&0x1ff)-0x1df;
if ((current_scroll[1]&0x4000)==0x4000)
{
int rowselect;
rowselect = current_videoram1[0x1000/2 + (((drawline+scrolly)&0x1ff) * 2) + 1];
scrolly = rowselect - drawline;
}
if ((current_scroll[0]&0x4000)==0x4000)
{
int rowscroll;
rowscroll = current_videoram1[0x1000/2 + (((drawline+scrolly)&0x1ff) * 2) + 0];
scrollx += rowscroll;
}
/* Global Flip */
if(!(current_scroll[0]&0x8000)) scrollx -= 0x19;
if(!(current_scroll[1]&0x8000)) scrolly -= 0x141;
flip = ((current_scroll[0]&0x8000)?0:TILEMAP_FLIPX) | ((current_scroll[1]&0x8000)?0:TILEMAP_FLIPY);
tilemap_set_scrollx(current_tilemap, 0, scrollx);
tilemap_set_scrolly(current_tilemap, 0, scrolly);
tilemap_set_flip(current_tilemap, flip);
tilemap_draw(bitmap, &clip, current_tilemap, i, i);
}
}
VIDEO_UPDATE( mcatadv )
{
int i, scrollx, scrolly, flip;
int i;
fillbitmap(bitmap, get_black_pen(), cliprect);
fillbitmap(priority_bitmap, 0, cliprect);
@ -180,40 +225,17 @@ VIDEO_UPDATE( mcatadv )
tilemap_mark_all_tiles_dirty(mcatadv_tilemap2);
}
scrollx = (mcatadv_scroll[0]&0x1ff)-0x194;
scrolly = (mcatadv_scroll[1]&0x1ff)-0x1df;
/* Global Flip */
if(!(mcatadv_scroll[0]&0x8000)) scrollx -= 0x19;
if(!(mcatadv_scroll[1]&0x8000)) scrolly -= 0x141;
flip = ((mcatadv_scroll[0]&0x8000)?0:TILEMAP_FLIPX) | ((mcatadv_scroll[1]&0x8000)?0:TILEMAP_FLIPY);
tilemap_set_scrollx(mcatadv_tilemap1, 0, scrollx);
tilemap_set_scrolly(mcatadv_tilemap1, 0, scrolly);
tilemap_set_flip(mcatadv_tilemap1, flip);
scrollx = (mcatadv_scroll2[0]&0x1ff)-0x194;
scrolly = (mcatadv_scroll2[1]&0x1ff)-0x1df;
/* Global Flip */
if(!(mcatadv_scroll2[0]&0x8000)) scrollx -= 0x19;
if(!(mcatadv_scroll2[1]&0x8000)) scrolly -= 0x141;
flip = ((mcatadv_scroll2[0]&0x8000)?0:TILEMAP_FLIPX) | ((mcatadv_scroll2[1]&0x8000)?0:TILEMAP_FLIPY);
tilemap_set_scrollx(mcatadv_tilemap2, 0, scrollx);
tilemap_set_scrolly(mcatadv_tilemap2, 0, scrolly);
tilemap_set_flip(mcatadv_tilemap2, flip);
for (i=0; i<=3; i++)
{
#ifdef MAME_DEBUG
if (!keyboard_pressed(KEYCODE_Q))
#endif
tilemap_draw(bitmap, cliprect, mcatadv_tilemap1, i, i);
#ifdef MAME_DEBUG
if (!keyboard_pressed(KEYCODE_W))
#endif
tilemap_draw(bitmap, cliprect, mcatadv_tilemap2, i, i);
#ifdef MAME_DEBUG
if (!keyboard_pressed(KEYCODE_Q))
#endif
mcatadv_draw_tilemap_part(mcatadv_scroll, mcatadv_videoram1, i, mcatadv_tilemap1, bitmap, cliprect);
#ifdef MAME_DEBUG
if (!keyboard_pressed(KEYCODE_W))
#endif
mcatadv_draw_tilemap_part(mcatadv_scroll2, mcatadv_videoram2, i, mcatadv_tilemap2, bitmap, cliprect);
}
profiler_mark(PROFILER_USER1);