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Diffstat (limited to 'src/mame/video/hanaawas.cpp')
-rw-r--r-- | src/mame/video/hanaawas.cpp | 108 |
1 files changed, 0 insertions, 108 deletions
diff --git a/src/mame/video/hanaawas.cpp b/src/mame/video/hanaawas.cpp deleted file mode 100644 index 3bb542efed1..00000000000 --- a/src/mame/video/hanaawas.cpp +++ /dev/null @@ -1,108 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:Zsolt Vasvari -/*************************************************************************** - - video.c - - Functions to emulate the video hardware of the machine. - -***************************************************************************/ - -#include "emu.h" -#include "includes/hanaawas.h" - -/*************************************************************************** - - Convert the color PROMs into a more useable format. - -***************************************************************************/ - -void hanaawas_state::hanaawas_palette(palette_device &palette) const -{ - uint8_t const *color_prom = memregion("proms")->base(); - - // create a lookup table for the palette - for (int i = 0; i < 0x10; i++) - { - int bit0, bit1, bit2; - - /* red component */ - bit0 = BIT(color_prom[i], 0); - bit1 = BIT(color_prom[i], 1); - bit2 = BIT(color_prom[i], 2); - int const r = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2; - - /* green component */ - bit0 = BIT(color_prom[i], 3); - bit1 = BIT(color_prom[i], 4); - bit2 = BIT(color_prom[i], 5); - int const g = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2; - - /* blue component */ - bit0 = 0; - bit1 = BIT(color_prom[i], 6); - bit2 = BIT(color_prom[i], 7); - int const b = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2; - - palette.set_indirect_color(i, rgb_t(r, g, b)); - } - - // color_prom now points to the beginning of the lookup table - color_prom += 0x20; - - // character lookup table. The 1bpp tiles really only use colors 0-0x0f and the 3bpp ones 0x10-0x1f - for (int i = 0; i < 0x100; i++) - { - int const swapped_i = bitswap<8>(i, 2,7,6,5,4,3,1,0); - uint8_t const ctabentry = color_prom[swapped_i] & 0x0f; - palette.set_pen_indirect(i, ctabentry); - } -} - -void hanaawas_state::hanaawas_videoram_w(offs_t offset, uint8_t data) -{ - m_videoram[offset] = data; - m_bg_tilemap->mark_tile_dirty(offset); -} - -void hanaawas_state::hanaawas_colorram_w(offs_t offset, uint8_t data) -{ - m_colorram[offset] = data; - - /* dirty both current and next offsets */ - m_bg_tilemap->mark_tile_dirty(offset); - m_bg_tilemap->mark_tile_dirty((offset + (flip_screen() ? -1 : 1)) & 0x03ff); -} - -void hanaawas_state::hanaawas_portB_w(uint8_t data) -{ - /* bit 7 is flip screen */ - if (flip_screen() != (~data & 0x80)) - { - flip_screen_set(~data & 0x80); - machine().tilemap().mark_all_dirty(); - } -} - -TILE_GET_INFO_MEMBER(hanaawas_state::get_bg_tile_info) -{ - /* the color is determined by the current color byte, but the bank is via the previous one!!! */ - int offset = (tile_index + (flip_screen() ? 1 : -1)) & 0x3ff; - int attr = m_colorram[offset]; - int gfxbank = (attr & 0x40) >> 6; - int code = m_videoram[tile_index] + ((attr & 0x20) << 3); - int color = m_colorram[tile_index] & 0x1f; - - tileinfo.set(gfxbank, code, color, 0); -} - -void hanaawas_state::video_start() -{ - m_bg_tilemap = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(*this, FUNC(hanaawas_state::get_bg_tile_info)), TILEMAP_SCAN_ROWS, 8, 8, 32, 32); -} - -uint32_t hanaawas_state::screen_update_hanaawas(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) -{ - m_bg_tilemap->draw(screen, bitmap, cliprect, 0, 0); - return 0; -} |