diff options
Diffstat (limited to 'src/mame/video/segaybd.c')
-rw-r--r-- | src/mame/video/segaybd.c | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/src/mame/video/segaybd.c b/src/mame/video/segaybd.c new file mode 100644 index 00000000000..4ed05f710ef --- /dev/null +++ b/src/mame/video/segaybd.c @@ -0,0 +1,75 @@ +/*************************************************************************** + + Sega Y-board hardware + +***************************************************************************/ + +#include "driver.h" +#include "segaic16.h" +#include "includes/system16.h" + + + +/************************************* + * + * Statics + * + *************************************/ + +static mame_bitmap *yboard_bitmap; + + + +/************************************* + * + * Video startup + * + *************************************/ + +VIDEO_START( yboard ) +{ + /* compute palette info */ + segaic16_palette_init(0x2000); + + /* allocate a bitmap for the yboard layer */ + yboard_bitmap = auto_bitmap_alloc(512, 512, BITMAP_FORMAT_INDEXED16); + + /* initialize the sprites */ + segaic16_sprites_init(0, SEGAIC16_SPRITES_YBOARD_16B, 0x800, 0); + segaic16_sprites_init(1, SEGAIC16_SPRITES_YBOARD, 0x1000, 0); + + /* initialize the rotation layer */ + segaic16_rotate_init(0, SEGAIC16_ROTATE_YBOARD, 0x000); +} + + + +/************************************* + * + * Video update + * + *************************************/ + +VIDEO_UPDATE( yboard ) +{ + rectangle yboard_clip; + + /* if no drawing is happening, fill with black and get out */ + if (!segaic16_display_enable) + { + fillbitmap(bitmap, get_black_pen(machine), cliprect); + return 0; + } + + /* draw the yboard sprites */ + yboard_clip.min_x = yboard_clip.min_y = 0; + yboard_clip.max_x = yboard_clip.max_y = 511; + segaic16_sprites_draw(1, yboard_bitmap, &yboard_clip); + + /* apply rotation */ + segaic16_rotate_draw(0, bitmap, cliprect, yboard_bitmap); + + /* draw the 16B sprites */ + segaic16_sprites_draw(0, bitmap, cliprect); + return 0; +} |