/*************************************************************************** video.c Functions to emulate the video hardware of the machine. ***************************************************************************/ #include "emu.h" #include "video/konicdev.h" #include "includes/mainevt.h" /*************************************************************************** Callbacks for the K052109 ***************************************************************************/ void mainevt_tile_callback( running_machine &machine, int layer, int bank, int *code, int *color, int *flags, int *priority ) { mainevt_state *state = machine.driver_data(); *flags = (*color & 0x02) ? TILE_FLIPX : 0; /* priority relative to HALF priority sprites */ *priority = (layer == 2) ? (*color & 0x20) >> 5 : 0; *code |= ((*color & 0x01) << 8) | ((*color & 0x1c) << 7); *color = state->m_layer_colorbase[layer] + ((*color & 0xc0) >> 6); } void dv_tile_callback( running_machine &machine, int layer, int bank, int *code, int *color, int *flags, int *priority ) { mainevt_state *state = machine.driver_data(); /* (color & 0x02) is flip y handled internally by the 052109 */ *code |= ((*color & 0x01) << 8) | ((*color & 0x3c) << 7); *color = state->m_layer_colorbase[layer] + ((*color & 0xc0) >> 6); } /*************************************************************************** Callbacks for the K051960 ***************************************************************************/ void mainevt_sprite_callback(running_machine &machine, int *code,int *color,int *priority_mask,int *shadow) { mainevt_state *state = machine.driver_data(); /* bit 5 = priority over layer B (has precedence) */ /* bit 6 = HALF priority over layer B (used for crowd when you get out of the ring) */ if (*color & 0x20) *priority_mask = 0xff00; else if (*color & 0x40) *priority_mask = 0xff00 | 0xf0f0; else *priority_mask = 0xff00 | 0xf0f0 | 0xcccc; /* bit 7 is shadow, not used */ *color = state->m_sprite_colorbase + (*color & 0x03); } void dv_sprite_callback(running_machine &machine, int *code,int *color,int *priority,int *shadow) { mainevt_state *state = machine.driver_data(); /* TODO: the priority/shadow handling (bits 5-7) seems to be quite complex (see PROM) */ *color = state->m_sprite_colorbase + (*color & 0x07); } /*****************************************************************************/ VIDEO_START( mainevt ) { mainevt_state *state = machine.driver_data(); state->m_layer_colorbase[0] = 0; state->m_layer_colorbase[1] = 8; state->m_layer_colorbase[2] = 4; state->m_sprite_colorbase = 12; } VIDEO_START( dv ) { mainevt_state *state = machine.driver_data(); state->m_layer_colorbase[0] = 0; state->m_layer_colorbase[1] = 0; state->m_layer_colorbase[2] = 4; state->m_sprite_colorbase = 8; } /*****************************************************************************/ SCREEN_UPDATE( mainevt ) { mainevt_state *state = screen->machine().driver_data(); k052109_tilemap_update(state->m_k052109); bitmap_fill(screen->machine().priority_bitmap, cliprect, 0); k052109_tilemap_draw(state->m_k052109, bitmap, cliprect, 1, TILEMAP_DRAW_OPAQUE, 1); k052109_tilemap_draw(state->m_k052109, bitmap, cliprect, 2, 1, 2); /* low priority part of layer */ k052109_tilemap_draw(state->m_k052109, bitmap, cliprect, 2, 0, 4); /* high priority part of layer */ k052109_tilemap_draw(state->m_k052109, bitmap, cliprect, 0, 0, 8); k051960_sprites_draw(state->m_k051960, bitmap, cliprect, -1, -1); return 0; } SCREEN_UPDATE( dv ) { mainevt_state *state = screen->machine().driver_data(); k052109_tilemap_update(state->m_k052109); k052109_tilemap_draw(state->m_k052109, bitmap, cliprect, 1, TILEMAP_DRAW_OPAQUE, 0); k052109_tilemap_draw(state->m_k052109, bitmap, cliprect, 2, 0, 0); k051960_sprites_draw(state->m_k051960, bitmap, cliprect, 0, 0); k052109_tilemap_draw(state->m_k052109, bitmap, cliprect, 0, 0, 0); return 0; }