diff options
Diffstat (limited to 'src/mame/video/calomega.cpp')
-rw-r--r-- | src/mame/video/calomega.cpp | 36 |
1 files changed, 16 insertions, 20 deletions
diff --git a/src/mame/video/calomega.cpp b/src/mame/video/calomega.cpp index 6d58d21f52e..b5a1c3a9e78 100644 --- a/src/mame/video/calomega.cpp +++ b/src/mame/video/calomega.cpp @@ -1,5 +1,5 @@ // license:BSD-3-Clause -// copyright-holders: Roberto Fresca +// copyright-holders: Roberto Fresca, Grull Osgo /*********************************************** .-----------------------------------------. @@ -7,7 +7,7 @@ | CAL OMEGA / CEI / UCMC | | SYSTEMS 903 / 904 / 905 / 906-III | | | - | Driver by Roberto Fresca. | + | Driver by Roberto Fresca & Grull Osgo | | | '-----------------------------------------' @@ -39,12 +39,12 @@ TILE_GET_INFO_MEMBER(calomega_state::get_bg_tile_info) --xx xx-- tiles color. ---- --x- tiles bank. x--- ---x extended tiles addressing. - -x-- ---- seems unused. */ - + -x-- ---- seems unused. +*/ int attr = m_colorram[tile_index]; - int code = ((attr & 1) << 8) | m_videoram[tile_index]; // bit 0 extends the the tiles addressing - int bank = (attr & 0x02) >> 1; // bit 1 switch the gfx banks - int color = (attr & 0x3c) >> 2; // bits 2-3-4-5 for color + int code = ((attr & 1) << 8) | m_videoram[tile_index]; // bit 0 extends the the tiles addressing. + int bank = (attr & 0x02) >> 1; // bit 1 switch the gfx banks. + int color = (attr & 0x3c) >> 2; // bits 2-3-4-5 for color. tileinfo.set(bank, code, color, 0); } @@ -57,13 +57,17 @@ void calomega_state::video_start() uint32_t calomega_state::screen_update_calomega(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect) { + if(r_pot != m_red->read()) { r_pot = m_red->read() * 2.55; calomega_palette(*m_palette);} + if(g_pot != m_grn->read()) { g_pot = m_grn->read() * 2.55; calomega_palette(*m_palette);} + if(b_pot != m_blu->read()) { b_pot = m_blu->read() * 2.55; calomega_palette(*m_palette);} + m_bg_tilemap->draw(screen, bitmap, cliprect, 0, 0); return 0; } void calomega_state::calomega_palette(palette_device &palette) const { -/* the proms are 256x4 bit, but the games only seem to need the first 128 entries, +/* The proms are 256 x 4 bits, but the games only seem to need the first 128 entries, and the rest of the PROM data looks like junk rather than valid colors prom bits @@ -72,17 +76,9 @@ void calomega_state::calomega_palette(palette_device &palette) const --x- green component -x-- blue component x--- foreground (colors with this bit set are full brightness, - colors with it clear are attenuated by the background color pots) + colors with it clear are attenuated by the analogic color pots) */ - // TODO: hook pots up as PORT_ADJUSTERs instead of hard coding them here - - // let's make the BG a little darker than FG blue - constexpr int r_pot = 0x00; - constexpr int g_pot = 0x00; - constexpr int b_pot = 0xc0; - - // 00000BGR uint8_t const *const color_prom = memregion("proms")->base(); if (!color_prom) return; @@ -93,13 +89,13 @@ void calomega_state::calomega_palette(palette_device &palette) const int const fg = BIT(nibble, 3); - // red component + // red component int const r = BIT(nibble, 0) * (fg ? 0xff : r_pot); - // green component + // green component int const g = BIT(nibble, 1) * (fg ? 0xff : g_pot); - // blue component + // blue component int const b = BIT(nibble, 2) * (fg ? 0xff : b_pot); palette.set_pen_color(i, rgb_t(r, g, b)); |