// license:BSD-3-Clause // copyright-holders:Nicola Salmoria #include "emu.h" #include "includes/bottom9.h" /*************************************************************************** Callbacks for the K052109 ***************************************************************************/ static const int layer_colorbase[] = { 0 / 16, 0 / 16, 256 / 16 }; K052109_CB_MEMBER(bottom9_state::tile_callback) { *code |= (*color & 0x3f) << 8; *color = layer_colorbase[layer] + ((*color & 0xc0) >> 6); } /*************************************************************************** Callbacks for the K051960 ***************************************************************************/ K051960_CB_MEMBER(bottom9_state::sprite_callback) { enum { sprite_colorbase = 512 / 16 }; /* bit 4 = priority over zoom (0 = have priority) */ /* bit 5 = priority over B (1 = have priority) */ *priority = 0; if ( *color & 0x10) *priority |= GFX_PMASK_1; if (~*color & 0x20) *priority |= GFX_PMASK_2; *color = sprite_colorbase + (*color & 0x0f); } /*************************************************************************** Callbacks for the K051316 ***************************************************************************/ K051316_CB_MEMBER(bottom9_state::zoom_callback) { enum { zoom_colorbase = 768 / 16 }; *flags = (*color & 0x40) ? TILE_FLIPX : 0; *code |= ((*color & 0x03) << 8); *color = zoom_colorbase + ((*color & 0x3c) >> 2); } /*************************************************************************** Display refresh ***************************************************************************/ uint32_t bottom9_state::screen_update_bottom9(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { m_k052109->tilemap_update(); /* note: FIX layer is not used */ bitmap.fill(layer_colorbase[1], cliprect); screen.priority().fill(0, cliprect); // if (m_video_enable) { m_k051316->zoom_draw(screen, bitmap, cliprect, 0, 1); m_k052109->tilemap_draw(screen, bitmap, cliprect, 2, 0, 2); m_k051960->k051960_sprites_draw(bitmap, cliprect, screen.priority(), -1, -1); m_k052109->tilemap_draw(screen, bitmap, cliprect, 1, 0, 0); } return 0; }