943 lines
29 KiB
C
943 lines
29 KiB
C
/*
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* VARCem Virtual ARchaeological Computer EMulator.
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* An emulator of (mostly) x86-based PC systems and devices,
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* using the ISA,EISA,VLB,MCA and PCI system buses, roughly
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* spanning the era between 1981 and 1995.
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*
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* This file is part of the VARCem Project.
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*
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* SVGA renderers.
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*
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* Version: @(#)vid_svga_render.c 1.0.14 2019/03/03
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*
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* Authors: Fred N. van Kempen, <decwiz@yahoo.com>
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* Miran Grca, <mgrca8@gmail.com>
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* Sarah Walker, <tommowalker@tommowalker.co.uk>
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*
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* Copyright 2017-2019 Fred N. van Kempen.
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* Copyright 2016-2018 Miran Grca.
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* Copyright 2008-2018 Sarah Walker.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the:
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*
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* Free Software Foundation, Inc.
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* 59 Temple Place - Suite 330
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* Boston, MA 02111-1307
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* USA.
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*/
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#include <stdio.h>
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#include <stdint.h>
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#include <string.h>
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#include <wchar.h>
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#include "../../emu.h"
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#include "../../mem.h"
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#include "video.h"
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#include "vid_svga.h"
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#include "vid_svga_render.h"
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void
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svga_render_blank(svga_t *svga)
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{
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int y_add = enable_overscan ? (overscan_y >> 1) : 0;
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int x_add = enable_overscan ? 8 : 0;
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int x, xx;
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if (svga->firstline_draw == 2000)
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svga->firstline_draw = svga->displine;
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svga->lastline_draw = svga->displine;
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for (x = 0; x < svga->hdisp; x++) {
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switch (svga->seqregs[1] & 9) {
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case 0:
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for (xx = 0; xx < 9; xx++) ((uint32_t *)buffer32->line[svga->displine + y_add])[(x * 9) + xx + 32 + x_add] = 0;
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break;
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case 1:
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for (xx = 0; xx < 8; xx++) ((uint32_t *)buffer32->line[svga->displine + y_add])[(x * 8) + xx + 32 + x_add] = 0;
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break;
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case 8:
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for (xx = 0; xx < 18; xx++) ((uint32_t *)buffer32->line[svga->displine + y_add])[(x * 18) + xx + 32 + x_add] = 0;
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break;
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case 9:
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for (xx = 0; xx < 16; xx++) ((uint32_t *)buffer32->line[svga->displine + y_add])[(x * 16) + xx + 32 + x_add] = 0;
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break;
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}
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}
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}
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void
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svga_render_text_40(svga_t *svga)
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{
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int y_add = enable_overscan ? (overscan_y >> 1) : 0;
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int x_add = enable_overscan ? 8 : 0;
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int xinc = (svga->seqregs[1] & 1) ? 16 : 18;
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uint8_t chr, attr, dat;
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uint32_t charaddr;
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int bg, fg, x, xx;
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int drawcursor;
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uint32_t *p;
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if (svga->firstline_draw == 2000)
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svga->firstline_draw = svga->displine;
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svga->lastline_draw = svga->displine;
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if (svga->fullchange) {
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p = &((uint32_t *)buffer32->line[svga->displine + y_add])[32 + x_add];
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for (x = 0; x < svga->hdisp; x += xinc) {
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drawcursor = ((svga->ma == svga->ca) && svga->con && svga->cursoron);
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chr = svga->vram[(svga->ma << 1) & svga->vram_display_mask];
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attr = svga->vram[((svga->ma << 1) + 1) & svga->vram_display_mask];
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if (attr & 8)
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charaddr = svga->charsetb + (chr * 128);
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else
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charaddr = svga->charseta + (chr * 128);
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if (drawcursor) {
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bg = svga->pallook[svga->egapal[attr & 15]];
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fg = svga->pallook[svga->egapal[attr >> 4]];
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} else {
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fg = svga->pallook[svga->egapal[attr & 15]];
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bg = svga->pallook[svga->egapal[attr >> 4]];
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if (attr & 0x80 && svga->attrregs[0x10] & 8) {
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bg = svga->pallook[svga->egapal[(attr >> 4) & 7]];
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if (svga->blink & 16)
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fg = bg;
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}
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}
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dat = svga->vram[charaddr + (svga->sc << 2)];
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if (svga->seqregs[1] & 1) {
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for (xx = 0; xx < 16; xx += 2)
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p[xx] = p[xx + 1] = (dat & (0x80 >> (xx >> 1))) ? fg : bg;
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} else {
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for (xx = 0; xx < 16; xx += 2)
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p[xx] = p[xx + 1] = (dat & (0x80 >> (xx >> 1))) ? fg : bg;
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if ((chr & ~0x1F) != 0xC0 || !(svga->attrregs[0x10] & 4))
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p[16] = p[17] = bg;
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else
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p[16] = p[17] = (dat & 1) ? fg : bg;
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}
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svga->ma += 4;
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p += xinc;
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}
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svga->ma &= svga->vram_display_mask;
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}
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}
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void
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svga_render_text_80(svga_t *svga)
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{
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int y_add = enable_overscan ? (overscan_y >> 1) : 0;
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int x_add = enable_overscan ? 8 : 0;
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int xinc = (svga->seqregs[1] & 1) ? 8 : 9;
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uint8_t chr, attr, dat;
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uint32_t charaddr;
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int bg, fg, x, xx;
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int drawcursor;
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uint32_t *p;
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if (svga->firstline_draw == 2000)
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svga->firstline_draw = svga->displine;
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svga->lastline_draw = svga->displine;
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if (svga->fullchange) {
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p = &((uint32_t *)buffer32->line[svga->displine + y_add])[32 + x_add];
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for (x = 0; x < svga->hdisp; x += xinc) {
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drawcursor = ((svga->ma == svga->ca) && svga->con && svga->cursoron);
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chr = svga->vram[(svga->ma << 1) & svga->vram_display_mask];
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attr = svga->vram[((svga->ma << 1) + 1) & svga->vram_display_mask];
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if (attr & 8)
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charaddr = svga->charsetb + (chr * 128);
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else
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charaddr = svga->charseta + (chr * 128);
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if (drawcursor) {
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bg = svga->pallook[svga->egapal[attr & 15]];
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fg = svga->pallook[svga->egapal[attr >> 4]];
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} else {
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fg = svga->pallook[svga->egapal[attr & 15]];
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bg = svga->pallook[svga->egapal[attr >> 4]];
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if (attr & 0x80 && svga->attrregs[0x10] & 8) {
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bg = svga->pallook[svga->egapal[(attr >> 4) & 7]];
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if (svga->blink & 16)
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fg = bg;
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}
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}
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dat = svga->vram[charaddr + (svga->sc << 2)];
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if (svga->seqregs[1] & 1) {
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for (xx = 0; xx < 8; xx++)
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p[xx] = (dat & (0x80 >> xx)) ? fg : bg;
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} else {
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for (xx = 0; xx < 8; xx++)
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p[xx] = (dat & (0x80 >> xx)) ? fg : bg;
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if ((chr & ~0x1F) != 0xC0 || !(svga->attrregs[0x10] & 4))
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p[8] = bg;
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else
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p[8] = (dat & 1) ? fg : bg;
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}
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svga->ma += 4;
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p += xinc;
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}
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svga->ma &= svga->vram_display_mask;
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}
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}
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void
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svga_render_text_80_ksc5601(svga_t *svga)
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{
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int y_add = enable_overscan ? (overscan_y >> 1) : 0;
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int x_add = enable_overscan ? 8 : 0;
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int xinc = (svga->seqregs[1] & 1) ? 8 : 9;
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uint8_t chr, attr, dat, nextchr;
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uint32_t charaddr;
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int bg, fg, x, xx;
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int drawcursor;
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uint32_t *p;
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if (svga->firstline_draw == 2000)
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svga->firstline_draw = svga->displine;
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svga->lastline_draw = svga->displine;
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if (svga->fullchange) {
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p = &((uint32_t *)buffer32->line[svga->displine + y_add])[32 + x_add];
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for (x = 0; x < svga->hdisp; x += xinc) {
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drawcursor = ((svga->ma == svga->ca) && svga->con && svga->cursoron);
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chr = svga->vram[(svga->ma << 1) & svga->vram_display_mask];
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nextchr = svga->vram[((svga->ma + 4) << 1) & svga->vram_display_mask];
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attr = svga->vram[((svga->ma << 1) + 1) & svga->vram_display_mask];
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if (drawcursor) {
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bg = svga->pallook[svga->egapal[attr & 15]];
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fg = svga->pallook[svga->egapal[attr >> 4]];
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} else {
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fg = svga->pallook[svga->egapal[attr & 15]];
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bg = svga->pallook[svga->egapal[attr >> 4]];
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if (attr & 0x80 && svga->attrregs[0x10] & 8) {
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bg = svga->pallook[svga->egapal[(attr >> 4) & 7]];
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if (svga->blink & 16)
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fg = bg;
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}
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}
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if(x + xinc < svga->hdisp && (chr & (nextchr | svga->ksc5601_sbyte_mask) & 0x80)) {
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if ((chr == 0xc9 || chr == 0xfe) && (nextchr > 0xa0 && nextchr < 0xff))
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dat = fontdatk_user[(chr == 0xfe ? 96 : 0) + (nextchr & 0x7F) - 0x20].chr[svga->sc];
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else if (nextchr & 0x80)
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dat = fontdatk[((chr & 0x7F) << 7) | (nextchr & 0x7F)].chr[svga->sc];
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else
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dat = 0xff;
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} else {
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if (attr & 8)
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charaddr = svga->charsetb + (chr * 128);
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else
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charaddr = svga->charseta + (chr * 128);
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dat = svga->vram[charaddr + (svga->sc << 2)];
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}
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if (svga->seqregs[1] & 1) {
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for (xx = 0; xx < 8; xx++)
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p[xx] = (dat & (0x80 >> xx)) ? fg : bg;
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} else {
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for (xx = 0; xx < 8; xx++)
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p[xx] = (dat & (0x80 >> xx)) ? fg : bg;
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if ((chr & ~0x1F) != 0xC0 || !(svga->attrregs[0x10] & 4))
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p[8] = bg;
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else
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p[8] = (dat & 1) ? fg : bg;
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}
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svga->ma += 4;
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p += xinc;
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if(x + xinc < svga->hdisp && (chr & (nextchr | svga->ksc5601_sbyte_mask) & 0x80)) {
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attr = svga->vram[((svga->ma << 1) + 1) & svga->vram_display_mask];
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if (drawcursor) {
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bg = svga->pallook[svga->egapal[attr & 15]];
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fg = svga->pallook[svga->egapal[attr >> 4]];
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} else {
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fg = svga->pallook[svga->egapal[attr & 15]];
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bg = svga->pallook[svga->egapal[attr >> 4]];
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if (attr & 0x80 && svga->attrregs[0x10] & 8) {
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bg = svga->pallook[svga->egapal[(attr >> 4) & 7]];
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if (svga->blink & 16)
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fg = bg;
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}
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}
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if ((chr == 0xc9 || chr == 0xfe) && (nextchr > 0xa0 && nextchr < 0xff))
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dat = fontdatk_user[(chr == 0xfe ? 96 : 0) + (nextchr & 0x7F) - 0x20].chr[svga->sc + 16];
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else if (nextchr & 0x80)
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dat = fontdatk[((chr & 0x7F) << 7) | (nextchr & 0x7F)].chr[svga->sc + 16];
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else
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dat = 0xff;
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if (svga->seqregs[1] & 1) {
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for (xx = 0; xx < 8; xx++)
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p[xx] = (dat & (0x80 >> xx)) ? fg : bg;
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} else {
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for (xx = 0; xx < 8; xx++)
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p[xx] = (dat & (0x80 >> xx)) ? fg : bg;
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if ((chr & ~0x1F) != 0xC0 || !(svga->attrregs[0x10] & 4))
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p[8] = bg;
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else
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p[8] = (dat & 1) ? fg : bg;
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}
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svga->ma += 4;
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p += xinc;
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x += xinc;
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}
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}
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svga->ma &= svga->vram_display_mask;
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}
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}
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void
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svga_render_2bpp_lowres(svga_t *svga)
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{
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int y_add = enable_overscan ? (overscan_y >> 1) : 0;
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int x_add = enable_overscan ? 8 : 0;
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int changed_offset, x;
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int offset;
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uint8_t dat[2];
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uint32_t *p;
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changed_offset = ((svga->ma << 1) + (svga->sc & ~svga->crtc[0x17] & 3) * 0x8000) >> 12;
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if (svga->changedvram[changed_offset] || svga->changedvram[changed_offset + 1] || svga->fullchange) {
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offset = ((8 - svga->scrollcache) << 1) + 16;
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p = &((uint32_t *)buffer32->line[svga->displine + y_add])[offset + x_add];
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if (svga->firstline_draw == 2000)
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svga->firstline_draw = svga->displine;
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svga->lastline_draw = svga->displine;
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for (x = 0; x <= svga->hdisp; x += 16) {
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dat[0] = svga->vram[(svga->ma << 1) + ((svga->sc & ~svga->crtc[0x17] & 3)) * 0x8000];
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dat[1] = svga->vram[(svga->ma << 1) + ((svga->sc & ~svga->crtc[0x17] & 3)) * 0x8000 + 1];
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svga->ma += 4;
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svga->ma &= svga->vram_display_mask;
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p[0] = p[1] = svga->pallook[svga->egapal[(dat[0] >> 6) & 3]];
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p[2] = p[3] = svga->pallook[svga->egapal[(dat[0] >> 4) & 3]];
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p[4] = p[5] = svga->pallook[svga->egapal[(dat[0] >> 2) & 3]];
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p[6] = p[7] = svga->pallook[svga->egapal[dat[0] & 3]];
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p[8] = p[9] = svga->pallook[svga->egapal[(dat[1] >> 6) & 3]];
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p[10] = p[11] = svga->pallook[svga->egapal[(dat[1] >> 4) & 3]];
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p[12] = p[13] = svga->pallook[svga->egapal[(dat[1] >> 2) & 3]];
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p[14] = p[15] = svga->pallook[svga->egapal[dat[1] & 3]];
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p += 16;
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}
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}
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}
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void
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svga_render_2bpp_highres(svga_t *svga)
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{
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int y_add = enable_overscan ? (overscan_y >> 1) : 0;
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int x_add = enable_overscan ? 8 : 0;
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int changed_offset;
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int offset, x;
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uint8_t dat[2];
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uint32_t *p;
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changed_offset = ((svga->ma << 1) + (svga->sc & ~svga->crtc[0x17] & 3) * 0x8000) >> 12;
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if (svga->changedvram[changed_offset] || svga->changedvram[changed_offset + 1] || svga->fullchange) {
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offset = (8 - svga->scrollcache) + 24;
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p = &((uint32_t *)buffer32->line[svga->displine + y_add])[offset + x_add];
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if (svga->firstline_draw == 2000)
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svga->firstline_draw = svga->displine;
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svga->lastline_draw = svga->displine;
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for (x = 0; x <= svga->hdisp; x += 8) {
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dat[0] = svga->vram[(svga->ma << 1) + ((svga->sc & ~svga->crtc[0x17] & 3)) * 0x8000];
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dat[1] = svga->vram[(svga->ma << 1) + ((svga->sc & ~svga->crtc[0x17] & 3)) * 0x8000 + 1];
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svga->ma += 4;
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svga->ma &= svga->vram_display_mask;
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p[0] = svga->pallook[svga->egapal[(dat[0] >> 6) & 3]];
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p[1] = svga->pallook[svga->egapal[(dat[0] >> 4) & 3]];
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p[2] = svga->pallook[svga->egapal[(dat[0] >> 2) & 3]];
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p[3] = svga->pallook[svga->egapal[dat[0] & 3]];
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p[4] = svga->pallook[svga->egapal[(dat[1] >> 6) & 3]];
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p[5] = svga->pallook[svga->egapal[(dat[1] >> 4) & 3]];
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p[6] = svga->pallook[svga->egapal[(dat[1] >> 2) & 3]];
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p[7] = svga->pallook[svga->egapal[dat[1] & 3]];
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p += 8;
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}
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}
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}
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void
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svga_render_4bpp_lowres(svga_t *svga)
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{
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int y_add = enable_overscan ? (overscan_y >> 1) : 0;
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int x_add = enable_overscan ? 8 : 0;
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int offset, x;
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uint32_t *p;
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uint8_t edat[4], dat;
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uint32_t *eptr = (uint32_t *)edat;
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if (svga->changedvram[svga->ma >> 12] || svga->changedvram[(svga->ma >> 12) + 1] || svga->fullchange) {
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offset = ((8 - svga->scrollcache) << 1) + 16;
|
|
p = &((uint32_t *)buffer32->line[svga->displine + y_add])[offset + x_add];
|
|
|
|
if (svga->firstline_draw == 2000)
|
|
svga->firstline_draw = svga->displine;
|
|
svga->lastline_draw = svga->displine;
|
|
|
|
for (x = 0; x <= svga->hdisp; x += 16) {
|
|
*eptr = *(uint32_t *)(&svga->vram[svga->ma]);
|
|
|
|
svga->ma += 4;
|
|
svga->ma &= svga->vram_display_mask;
|
|
|
|
dat = edatlookup[edat[0] >> 6][edat[1] >> 6] | (edatlookup[edat[2] >> 6][edat[3] >> 6] << 2);
|
|
p[0] = p[1] = svga->pallook[svga->egapal[(dat >> 4) & svga->plane_mask]];
|
|
p[2] = p[3] = svga->pallook[svga->egapal[dat & svga->plane_mask]];
|
|
dat = edatlookup[(edat[0] >> 4) & 3][(edat[1] >> 4) & 3] | (edatlookup[(edat[2] >> 4) & 3][(edat[3] >> 4) & 3] << 2);
|
|
p[4] = p[5] = svga->pallook[svga->egapal[(dat >> 4) & svga->plane_mask]];
|
|
p[6] = p[7] = svga->pallook[svga->egapal[dat & svga->plane_mask]];
|
|
dat = edatlookup[(edat[0] >> 2) & 3][(edat[1] >> 2) & 3] | (edatlookup[(edat[2] >> 2) & 3][(edat[3] >> 2) & 3] << 2);
|
|
p[8] = p[9] = svga->pallook[svga->egapal[(dat >> 4) & svga->plane_mask]];
|
|
p[10] = p[11] = svga->pallook[svga->egapal[dat & svga->plane_mask]];
|
|
dat = edatlookup[edat[0] & 3][edat[1] & 3] | (edatlookup[edat[2] & 3][edat[3] & 3] << 2);
|
|
p[12] = p[13] = svga->pallook[svga->egapal[(dat >> 4) & svga->plane_mask]];
|
|
p[14] = p[15] = svga->pallook[svga->egapal[dat & svga->plane_mask]];
|
|
|
|
p += 16;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void
|
|
svga_render_4bpp_highres(svga_t *svga)
|
|
{
|
|
int y_add = enable_overscan ? (overscan_y >> 1) : 0;
|
|
int x_add = enable_overscan ? 8 : 0;
|
|
int changed_offset;
|
|
int offset, x;
|
|
uint32_t *p;
|
|
uint8_t edat[4], dat;
|
|
uint32_t *eptr = (uint32_t *)edat;
|
|
|
|
changed_offset = (svga->ma + (svga->sc & ~svga->crtc[0x17] & 3) * 0x8000) >> 12;
|
|
|
|
if (svga->changedvram[changed_offset] || svga->changedvram[changed_offset + 1] || svga->fullchange) {
|
|
offset = (8 - svga->scrollcache) + 24;
|
|
p = &((uint32_t *)buffer32->line[svga->displine + y_add])[offset + x_add];
|
|
|
|
if (svga->firstline_draw == 2000)
|
|
svga->firstline_draw = svga->displine;
|
|
svga->lastline_draw = svga->displine;
|
|
|
|
for (x = 0; x <= svga->hdisp; x += 8) {
|
|
*eptr = *(uint32_t *)(&svga->vram[svga->ma | ((svga->sc & ~svga->crtc[0x17] & 3)) * 0x8000]);
|
|
svga->ma += 4;
|
|
svga->ma &= svga->vram_display_mask;
|
|
|
|
dat = edatlookup[edat[0] >> 6][edat[1] >> 6] | (edatlookup[edat[2] >> 6][edat[3] >> 6] << 2);
|
|
p[0] = svga->pallook[svga->egapal[(dat >> 4) & svga->plane_mask]];
|
|
p[1] = svga->pallook[svga->egapal[dat & svga->plane_mask]];
|
|
dat = edatlookup[(edat[0] >> 4) & 3][(edat[1] >> 4) & 3] | (edatlookup[(edat[2] >> 4) & 3][(edat[3] >> 4) & 3] << 2);
|
|
p[2] = svga->pallook[svga->egapal[(dat >> 4) & svga->plane_mask]];
|
|
p[3] = svga->pallook[svga->egapal[dat & svga->plane_mask]];
|
|
dat = edatlookup[(edat[0] >> 2) & 3][(edat[1] >> 2) & 3] | (edatlookup[(edat[2] >> 2) & 3][(edat[3] >> 2) & 3] << 2);
|
|
p[4] = svga->pallook[svga->egapal[(dat >> 4) & svga->plane_mask]];
|
|
p[5] = svga->pallook[svga->egapal[dat & svga->plane_mask]];
|
|
dat = edatlookup[edat[0] & 3][edat[1] & 3] | (edatlookup[edat[2] & 3][edat[3] & 3] << 2);
|
|
p[6] = svga->pallook[svga->egapal[(dat >> 4) & svga->plane_mask]];
|
|
p[7] = svga->pallook[svga->egapal[dat & svga->plane_mask]];
|
|
|
|
p += 8;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void
|
|
svga_render_8bpp_lowres(svga_t *svga)
|
|
{
|
|
int y_add = enable_overscan ? (overscan_y >> 1) : 0;
|
|
int x_add = enable_overscan ? 8 : 0;
|
|
uint32_t *p, dat;
|
|
int offset, x;
|
|
|
|
if (svga->changedvram[svga->ma >> 12] || svga->changedvram[(svga->ma >> 12) + 1] || svga->fullchange) {
|
|
offset = (8 - (svga->scrollcache & 6)) + 24;
|
|
p = &((uint32_t *)buffer32->line[svga->displine + y_add])[offset + x_add];
|
|
|
|
if (svga->firstline_draw == 2000)
|
|
svga->firstline_draw = svga->displine;
|
|
svga->lastline_draw = svga->displine;
|
|
|
|
for (x = 0; x <= svga->hdisp; x += 8) {
|
|
dat = *(uint32_t *)(&svga->vram[svga->ma & svga->vram_display_mask]);
|
|
|
|
p[0] = p[1] = svga->pallook[dat & 0xff];
|
|
p[2] = p[3] = svga->pallook[(dat >> 8) & 0xff];
|
|
p[4] = p[5] = svga->pallook[(dat >> 16) & 0xff];
|
|
p[6] = p[7] = svga->pallook[(dat >> 24) & 0xff];
|
|
|
|
svga->ma += 4;
|
|
p += 8;
|
|
}
|
|
svga->ma &= svga->vram_display_mask;
|
|
}
|
|
}
|
|
|
|
|
|
void
|
|
svga_render_8bpp_highres(svga_t *svga)
|
|
{
|
|
int y_add = enable_overscan ? (overscan_y >> 1) : 0;
|
|
int x_add = enable_overscan ? 8 : 0;
|
|
uint32_t *p, dat;
|
|
int offset, x;
|
|
|
|
if (svga->changedvram[svga->ma >> 12] || svga->changedvram[(svga->ma >> 12) + 1] || svga->fullchange) {
|
|
offset = (8 - ((svga->scrollcache & 6) >> 1)) + 24;
|
|
p = &((uint32_t *)buffer32->line[svga->displine + y_add])[offset + x_add];
|
|
|
|
if (svga->firstline_draw == 2000)
|
|
svga->firstline_draw = svga->displine;
|
|
svga->lastline_draw = svga->displine;
|
|
|
|
for (x = 0; x <= svga->hdisp; x += 8) {
|
|
dat = *(uint32_t *)(&svga->vram[svga->ma & svga->vram_display_mask]);
|
|
p[0] = svga->pallook[dat & 0xff];
|
|
p[1] = svga->pallook[(dat >> 8) & 0xff];
|
|
p[2] = svga->pallook[(dat >> 16) & 0xff];
|
|
p[3] = svga->pallook[(dat >> 24) & 0xff];
|
|
|
|
dat = *(uint32_t *)(&svga->vram[(svga->ma + 4) & svga->vram_display_mask]);
|
|
p[4] = svga->pallook[dat & 0xff];
|
|
p[5] = svga->pallook[(dat >> 8) & 0xff];
|
|
p[6] = svga->pallook[(dat >> 16) & 0xff];
|
|
p[7] = svga->pallook[(dat >> 24) & 0xff];
|
|
|
|
svga->ma += 8;
|
|
p += 8;
|
|
}
|
|
svga->ma &= svga->vram_display_mask;
|
|
}
|
|
}
|
|
|
|
|
|
void
|
|
svga_render_15bpp_lowres(svga_t *svga)
|
|
{
|
|
int y_add = enable_overscan ? (overscan_y >> 1) : 0;
|
|
int x_add = enable_overscan ? 8 : 0;
|
|
uint32_t *p, dat;
|
|
int offset, x;
|
|
|
|
if (svga->changedvram[svga->ma >> 12] || svga->changedvram[(svga->ma >> 12) + 1] || svga->fullchange) {
|
|
offset = (8 - (svga->scrollcache & 6)) + 24;
|
|
p = &((uint32_t *)buffer32->line[svga->displine + y_add])[offset + x_add];
|
|
|
|
if (svga->firstline_draw == 2000)
|
|
svga->firstline_draw = svga->displine;
|
|
svga->lastline_draw = svga->displine;
|
|
|
|
for (x = 0; x <= svga->hdisp; x += 4) {
|
|
dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 1)) & svga->vram_display_mask]);
|
|
|
|
p[x] = video_15to32[dat & 0xffff];
|
|
p[x + 1] = video_15to32[dat >> 16];
|
|
|
|
dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 1) + 4) & svga->vram_display_mask]);
|
|
|
|
p[x] = video_15to32[dat & 0xffff];
|
|
p[x + 1] = video_15to32[dat >> 16];
|
|
}
|
|
svga->ma += x << 1;
|
|
svga->ma &= svga->vram_display_mask;
|
|
}
|
|
}
|
|
|
|
|
|
void
|
|
svga_render_15bpp_highres(svga_t *svga)
|
|
{
|
|
int y_add = enable_overscan ? (overscan_y >> 1) : 0;
|
|
int x_add = enable_overscan ? 8 : 0;
|
|
uint32_t *p, dat;
|
|
int offset, x;
|
|
|
|
if (svga->changedvram[svga->ma >> 12] || svga->changedvram[(svga->ma >> 12) + 1] || svga->fullchange) {
|
|
offset = (8 - ((svga->scrollcache & 6) >> 1)) + 24;
|
|
p = &((uint32_t *)buffer32->line[svga->displine + y_add])[offset + x_add];
|
|
|
|
if (svga->firstline_draw == 2000)
|
|
svga->firstline_draw = svga->displine;
|
|
svga->lastline_draw = svga->displine;
|
|
|
|
for (x = 0; x <= svga->hdisp; x += 8) {
|
|
dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 1)) & svga->vram_display_mask]);
|
|
p[x] = video_15to32[dat & 0xffff];
|
|
p[x + 1] = video_15to32[dat >> 16];
|
|
|
|
dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 1) + 4) & svga->vram_display_mask]);
|
|
p[x + 2] = video_15to32[dat & 0xffff];
|
|
p[x + 3] = video_15to32[dat >> 16];
|
|
|
|
dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 1) + 8) & svga->vram_display_mask]);
|
|
p[x + 4] = video_15to32[dat & 0xffff];
|
|
p[x + 5] = video_15to32[dat >> 16];
|
|
|
|
dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 1) + 12) & svga->vram_display_mask]);
|
|
p[x + 6] = video_15to32[dat & 0xffff];
|
|
p[x + 7] = video_15to32[dat >> 16];
|
|
}
|
|
svga->ma += x << 1;
|
|
svga->ma &= svga->vram_display_mask;
|
|
}
|
|
}
|
|
|
|
|
|
void
|
|
svga_render_mixed_highres(svga_t *svga)
|
|
{
|
|
int y_add = enable_overscan ? (overscan_y >> 1) : 0;
|
|
int x_add = enable_overscan ? 8 : 0;
|
|
uint32_t *p, dat;
|
|
int offset, x;
|
|
|
|
if (svga->changedvram[svga->ma >> 12] || svga->changedvram[(svga->ma >> 12) + 1] || svga->fullchange) {
|
|
offset = (8 - ((svga->scrollcache & 6) >> 1)) + 24;
|
|
p = &((uint32_t *)buffer32->line[svga->displine + y_add])[offset + x_add];
|
|
|
|
if (svga->firstline_draw == 2000)
|
|
svga->firstline_draw = svga->displine;
|
|
svga->lastline_draw = svga->displine;
|
|
|
|
for (x = 0; x <= svga->hdisp; x += 8) {
|
|
dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 1)) & svga->vram_display_mask]);
|
|
if (dat & 0x8000)
|
|
p[x] = svga->pallook[dat & 0xff];
|
|
else
|
|
p[x] = video_15to32[dat & 0x7fff];
|
|
|
|
if ((dat >> 16) & 0x8000)
|
|
p[x + 1] = svga->pallook[(dat >> 16) & 0xff];
|
|
else
|
|
p[x + 1] = video_15to32[(dat >> 16) & 0x7fff];
|
|
|
|
dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 1) + 4) & svga->vram_display_mask]);
|
|
|
|
if (dat & 0x8000)
|
|
p[x + 2] = svga->pallook[dat & 0xff];
|
|
else
|
|
p[x + 2] = video_15to32[dat & 0x7fff];
|
|
|
|
if ((dat >> 16) & 0x8000)
|
|
p[x + 3] = svga->pallook[(dat >> 16) & 0xff];
|
|
else
|
|
p[x + 3] = video_15to32[(dat >> 16) & 0x7fff];
|
|
|
|
dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 1) + 8) & svga->vram_display_mask]);
|
|
if (dat & 0x8000)
|
|
p[x + 4] = svga->pallook[dat & 0xff];
|
|
else
|
|
p[x + 4] = video_15to32[dat & 0x7fff];
|
|
|
|
if ((dat >> 16) & 0x8000)
|
|
p[x + 5] = svga->pallook[(dat >> 16) & 0xff];
|
|
else
|
|
p[x + 5] = video_15to32[(dat >> 16) & 0x7fff];
|
|
|
|
dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 1) + 12) & svga->vram_display_mask]);
|
|
if (dat & 0x8000)
|
|
p[x + 6] = svga->pallook[dat & 0xff];
|
|
else
|
|
p[x + 6] = video_15to32[dat & 0x7fff];
|
|
|
|
if ((dat >> 16) & 0x8000)
|
|
p[x + 7] = svga->pallook[(dat >> 16) & 0xff];
|
|
else
|
|
p[x + 7] = video_15to32[(dat >> 16) & 0x7fff];
|
|
}
|
|
svga->ma += x << 1;
|
|
svga->ma &= svga->vram_display_mask;
|
|
}
|
|
}
|
|
|
|
|
|
void
|
|
svga_render_16bpp_lowres(svga_t *svga)
|
|
{
|
|
int y_add = enable_overscan ? (overscan_y >> 1) : 0;
|
|
int x_add = enable_overscan ? 8 : 0;
|
|
uint32_t *p, dat;
|
|
int offset, x;
|
|
|
|
if (svga->changedvram[svga->ma >> 12] || svga->changedvram[(svga->ma >> 12) + 1] || svga->fullchange) {
|
|
offset = (8 - (svga->scrollcache & 6)) + 24;
|
|
p = &((uint32_t *)buffer32->line[svga->displine + y_add])[offset + x_add];
|
|
|
|
if (svga->firstline_draw == 2000)
|
|
svga->firstline_draw = svga->displine;
|
|
svga->lastline_draw = svga->displine;
|
|
|
|
for (x = 0; x <= svga->hdisp; x += 4) {
|
|
dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 1)) & svga->vram_display_mask]);
|
|
|
|
p[x] = video_16to32[dat & 0xffff];
|
|
p[x + 1] = video_16to32[dat >> 16];
|
|
|
|
dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 1) + 4) & svga->vram_display_mask]);
|
|
|
|
p[x] = video_16to32[dat & 0xffff];
|
|
p[x + 1] = video_16to32[dat >> 16];
|
|
}
|
|
svga->ma += x << 1;
|
|
svga->ma &= svga->vram_display_mask;
|
|
}
|
|
}
|
|
|
|
|
|
void
|
|
svga_render_16bpp_highres(svga_t *svga)
|
|
{
|
|
int y_add = enable_overscan ? (overscan_y >> 1) : 0;
|
|
int x_add = enable_overscan ? 8 : 0;
|
|
uint32_t *p, dat;
|
|
int offset, x;
|
|
|
|
if (svga->changedvram[svga->ma >> 12] || svga->changedvram[(svga->ma >> 12) + 1] || svga->fullchange) {
|
|
offset = (8 - ((svga->scrollcache & 6) >> 1)) + 24;
|
|
p = &((uint32_t *)buffer32->line[svga->displine + y_add])[offset + x_add];
|
|
|
|
if (svga->firstline_draw == 2000)
|
|
svga->firstline_draw = svga->displine;
|
|
svga->lastline_draw = svga->displine;
|
|
|
|
for (x = 0; x <= svga->hdisp; x += 8) {
|
|
dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 1)) & svga->vram_display_mask]);
|
|
p[x] = video_16to32[dat & 0xffff];
|
|
p[x + 1] = video_16to32[dat >> 16];
|
|
|
|
dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 1) + 4) & svga->vram_display_mask]);
|
|
p[x + 2] = video_16to32[dat & 0xffff];
|
|
p[x + 3] = video_16to32[dat >> 16];
|
|
|
|
dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 1) + 8) & svga->vram_display_mask]);
|
|
p[x + 4] = video_16to32[dat & 0xffff];
|
|
p[x + 5] = video_16to32[dat >> 16];
|
|
|
|
dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 1) + 12) & svga->vram_display_mask]);
|
|
p[x + 6] = video_16to32[dat & 0xffff];
|
|
p[x + 7] = video_16to32[dat >> 16];
|
|
}
|
|
|
|
svga->ma += x << 1;
|
|
svga->ma &= svga->vram_display_mask;
|
|
}
|
|
}
|
|
|
|
|
|
void
|
|
svga_render_24bpp_lowres(svga_t *svga)
|
|
{
|
|
int y_add = enable_overscan ? (overscan_y >> 1) : 0;
|
|
int x_add = enable_overscan ? 8 : 0;
|
|
uint32_t dat;
|
|
int offset, x;
|
|
|
|
if (svga->changedvram[svga->ma >> 12] || svga->changedvram[(svga->ma >> 12) + 1] || svga->fullchange) {
|
|
if (svga->firstline_draw == 2000)
|
|
svga->firstline_draw = svga->displine;
|
|
svga->lastline_draw = svga->displine;
|
|
|
|
offset = (8 - (svga->scrollcache & 6)) + 24;
|
|
|
|
for (x = 0; x <= svga->hdisp; x++) {
|
|
dat = svga->vram[svga->ma] | (svga->vram[svga->ma + 1] << 8) | (svga->vram[svga->ma + 2] << 16);
|
|
svga->ma += 3;
|
|
svga->ma &= svga->vram_display_mask;
|
|
((uint32_t *)buffer32->line[svga->displine + y_add])[(x << 1) + offset + x_add] = ((uint32_t *)buffer32->line[svga->displine + y_add])[(x << 1) + 1 + offset + x_add] = dat;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void
|
|
svga_render_24bpp_highres(svga_t *svga)
|
|
{
|
|
int y_add = enable_overscan ? (overscan_y >> 1) : 0;
|
|
int x_add = enable_overscan ? 8 : 0;
|
|
uint32_t *p, dat;
|
|
int offset, x;
|
|
|
|
if (svga->changedvram[svga->ma >> 12] || svga->changedvram[(svga->ma >> 12) + 1] || svga->fullchange) {
|
|
offset = (8 - ((svga->scrollcache & 6) >> 1)) + 24;
|
|
p = &((uint32_t *)buffer32->line[svga->displine + y_add])[offset + x_add];
|
|
|
|
if (svga->firstline_draw == 2000)
|
|
svga->firstline_draw = svga->displine;
|
|
svga->lastline_draw = svga->displine;
|
|
|
|
for (x = 0; x <= svga->hdisp; x += 4) {
|
|
dat = *(uint32_t *)(&svga->vram[svga->ma & svga->vram_display_mask]);
|
|
p[x] = dat & 0xffffff;
|
|
|
|
dat = *(uint32_t *)(&svga->vram[(svga->ma + 3) & svga->vram_display_mask]);
|
|
p[x + 1] = dat & 0xffffff;
|
|
|
|
dat = *(uint32_t *)(&svga->vram[(svga->ma + 6) & svga->vram_display_mask]);
|
|
p[x + 2] = dat & 0xffffff;
|
|
|
|
dat = *(uint32_t *)(&svga->vram[(svga->ma + 9) & svga->vram_display_mask]);
|
|
p[x + 3] = dat & 0xffffff;
|
|
|
|
svga->ma += 12;
|
|
}
|
|
svga->ma &= svga->vram_display_mask;
|
|
}
|
|
}
|
|
|
|
|
|
void
|
|
svga_render_32bpp_lowres(svga_t *svga)
|
|
{
|
|
int y_add = enable_overscan ? (overscan_y >> 1) : 0;
|
|
int x_add = enable_overscan ? 8 : 0;
|
|
int x, offset;
|
|
uint32_t fg;
|
|
|
|
if (svga->changedvram[svga->ma >> 12] || svga->changedvram[(svga->ma >> 12) + 1] || svga->fullchange) {
|
|
if (svga->firstline_draw == 2000)
|
|
svga->firstline_draw = svga->displine;
|
|
svga->lastline_draw = svga->displine;
|
|
|
|
offset = (8 - (svga->scrollcache & 6)) + 24;
|
|
|
|
for (x = 0; x <= svga->hdisp; x++) {
|
|
fg = svga->vram[svga->ma] | (svga->vram[svga->ma + 1] << 8) | (svga->vram[svga->ma + 2] << 16);
|
|
svga->ma += 4;
|
|
svga->ma &= svga->vram_display_mask;
|
|
((uint32_t *)buffer32->line[svga->displine + y_add])[(x << 1) + offset + x_add] = ((uint32_t *)buffer32->line[svga->displine + y_add])[(x << 1) + 1 + offset + x_add] = fg;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/*72%
|
|
91%*/
|
|
void
|
|
svga_render_32bpp_highres(svga_t *svga)
|
|
{
|
|
int y_add = enable_overscan ? (overscan_y >> 1) : 0;
|
|
int x_add = enable_overscan ? 8 : 0;
|
|
uint32_t *p, dat;
|
|
int offset, x;
|
|
|
|
if (svga->changedvram[svga->ma >> 12] || svga->changedvram[(svga->ma >> 12) + 1] || svga->changedvram[(svga->ma >> 12) + 2] || svga->fullchange) {
|
|
offset = (8 - ((svga->scrollcache & 6) >> 1)) + 24;
|
|
p = &((uint32_t *)buffer32->line[svga->displine + y_add])[offset + x_add];
|
|
|
|
if (svga->firstline_draw == 2000)
|
|
svga->firstline_draw = svga->displine;
|
|
svga->lastline_draw = svga->displine;
|
|
|
|
for (x = 0; x <= svga->hdisp; x++) {
|
|
dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 2)) & svga->vram_display_mask]);
|
|
p[x] = dat & 0xffffff;
|
|
}
|
|
|
|
svga->ma += 4;
|
|
svga->ma &= svga->vram_display_mask;
|
|
}
|
|
}
|
|
|
|
|
|
void
|
|
svga_render_ABGR8888_highres(svga_t *svga)
|
|
{
|
|
int y_add = enable_overscan ? (overscan_y >> 1) : 0;
|
|
int x_add = enable_overscan ? 8 : 0;
|
|
uint32_t *p, dat;
|
|
int offset, x;
|
|
|
|
if (svga->changedvram[svga->ma >> 12] || svga->changedvram[(svga->ma >> 12) + 1] || svga->changedvram[(svga->ma >> 12) + 2] || svga->fullchange) {
|
|
offset = (8 - ((svga->scrollcache & 6) >> 1)) + 24;
|
|
p = &((uint32_t *)buffer32->line[svga->displine + y_add])[offset + x_add];
|
|
|
|
if (svga->firstline_draw == 2000)
|
|
svga->firstline_draw = svga->displine;
|
|
svga->lastline_draw = svga->displine;
|
|
|
|
for (x = 0; x <= svga->hdisp; x++) {
|
|
dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 2)) & svga->vram_display_mask]);
|
|
p[x] = ((dat & 0xff0000) >> 16) | (dat & 0x00ff00) | ((dat & 0x0000ff) << 16);
|
|
}
|
|
|
|
svga->ma += 4;
|
|
svga->ma &= svga->vram_display_mask;
|
|
}
|
|
}
|
|
|
|
|
|
void
|
|
svga_render_RGBA8888_highres(svga_t *svga)
|
|
{
|
|
int y_add = enable_overscan ? (overscan_y >> 1) : 0;
|
|
int x_add = enable_overscan ? 8 : 0;
|
|
uint32_t *p, dat;
|
|
int offset, x;
|
|
|
|
if (svga->changedvram[svga->ma >> 12] || svga->changedvram[(svga->ma >> 12) + 1] || svga->changedvram[(svga->ma >> 12) + 2] || svga->fullchange) {
|
|
offset = (8 - ((svga->scrollcache & 6) >> 1)) + 24;
|
|
p = &((uint32_t *)buffer32->line[svga->displine + y_add])[offset + x_add];
|
|
|
|
if (svga->firstline_draw == 2000)
|
|
svga->firstline_draw = svga->displine;
|
|
svga->lastline_draw = svga->displine;
|
|
|
|
for (x = 0; x <= svga->hdisp; x++) {
|
|
dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 2)) & svga->vram_display_mask]);
|
|
p[x] = dat >> 8;
|
|
}
|
|
|
|
svga->ma += 4;
|
|
svga->ma &= svga->vram_display_mask;
|
|
}
|
|
}
|