Committed the missing files and updated the makefile.
This commit is contained in:
OBattler
@@ -170,7 +170,8 @@ SNDOBJ = sound.o \
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snd_sn76489.o snd_ssi2001.o snd_wss.o \
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snd_ym7128.o
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VIDOBJ = video.o \
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vid_cga.o vid_cga_comp.o vid_mda.o vid_ega.o \
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vid_cga.o vid_cga_comp.o vid_mda.o \
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vid_ega.o vid_ega_render.o \
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vid_vga.o vid_svga.o vid_svga_render.o \
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vid_hercules.o vid_herculesplus.o vid_incolor.o \
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vid_colorplus.o \
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308
src/VIDEO/vid_ega_render.c
Normal file
308
src/VIDEO/vid_ega_render.c
Normal file
@@ -0,0 +1,308 @@
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/*
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* 86Box A hypervisor and IBM PC system emulator that specializes in
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* running old operating systems and software designed for IBM
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* PC systems and compatibles from 1981 through fairly recent
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* system designs based on the PCI bus.
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*
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* This file is part of the 86Box distribution.
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*
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* EGA renderers.
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*
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* Version: @(#)vid_ega_render.c 1.0.0 2017/05/30
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*
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* Author: Sarah Walker, <http://pcem-emulator.co.uk/>
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* Miran Grca, <mgrca8@gmail.com>
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* Copyright 2008-2017 Sarah Walker.
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* Copyright 2016-2017 Miran Grca.
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*/
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#include <stdio.h>
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#include "../ibm.h"
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#include "../device.h"
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#include "../mem.h"
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#include "../rom.h"
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#include "video.h"
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#include "vid_ega.h"
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#include "vid_ega_render.h"
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int invert_display = 0;
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int ega_display_line(ega_t *ega)
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{
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int y_add = (enable_overscan) ? (overscan_y >> 1) : 0;
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unsigned int dl = ega->displine;
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if (ega->crtc[9] & 0x1f)
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{
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dl -= (ega->crtc[8] & 0x1f);
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}
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dl += y_add;
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dl &= 0x7ff;
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return dl;
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}
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void ega_render_blank(ega_t *ega)
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{
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int x_add = (enable_overscan) ? 8 : 0;
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int dl = ega_display_line(ega);
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int x, xx;
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for (x = 0; x < ega->hdisp; x++)
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{
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switch (ega->seqregs[1] & 9)
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{
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case 0:
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for (xx = 0; xx < 9; xx++) ((uint32_t *)buffer32->line[dl])[(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[dl])[(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[dl])[(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[dl])[(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 ega_render_text_standard(ega_t *ega, int drawcursor)
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{
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int x_add = (enable_overscan) ? 8 : 0;
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int dl = ega_display_line(ega);
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uint8_t chr, dat, attr;
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uint32_t charaddr;
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int x, xx;
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uint32_t fg, bg;
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if (fullchange)
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{
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for (x = 0; x < ega->hdisp; x++)
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{
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drawcursor = ((ega->ma == ega->ca) && ega->con && ega->cursoron);
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chr = ega->vram[(ega->ma << 1) & ega->vrammask];
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attr = ega->vram[((ega->ma << 1) + 1) & ega->vrammask];
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if (attr & 8) charaddr = ega->charsetb + (chr * 128);
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else charaddr = ega->charseta + (chr * 128);
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if (drawcursor)
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{
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bg = ega->pallook[ega->egapal[attr & 15]];
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fg = ega->pallook[ega->egapal[attr >> 4]];
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}
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else
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{
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fg = ega->pallook[ega->egapal[attr & 15]];
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bg = ega->pallook[ega->egapal[attr >> 4]];
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if (attr & 0x80 && ega->attrregs[0x10] & 8)
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{
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bg = ega->pallook[ega->egapal[(attr >> 4) & 7]];
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if (ega->blink & 16)
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fg = bg;
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}
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}
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dat = ega->vram[charaddr + (ega->sc << 2)];
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if (ega->seqregs[1] & 8)
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{
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if (ega->seqregs[1] & 1)
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{
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for (xx = 0; xx < 8; xx++)
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((uint32_t *)buffer32->line[dl])[(((x << 4) + 32 + (xx << 1)) & 2047) + x_add] =
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((uint32_t *)buffer32->line[dl])[(((x << 4) + 33 + (xx << 1)) & 2047) + x_add] = (dat & (0x80 >> xx)) ? fg : bg;
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}
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else
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{
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for (xx = 0; xx < 8; xx++)
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((uint32_t *)buffer32->line[dl])[(((x * 18) + 32 + (xx << 1)) & 2047) + x_add] =
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((uint32_t *)buffer32->line[dl])[(((x * 18) + 33 + (xx << 1)) & 2047) + x_add] = (dat & (0x80 >> xx)) ? fg : bg;
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if ((chr & ~0x1f) != 0xc0 || !(ega->attrregs[0x10] & 4))
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((uint32_t *)buffer32->line[dl])[(((x * 18) + 32 + 16) & 2047) + x_add] =
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((uint32_t *)buffer32->line[dl])[(((x * 18) + 32 + 17) & 2047) + x_add] = bg;
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else
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((uint32_t *)buffer32->line[dl])[(((x * 18) + 32 + 16) & 2047) + x_add] =
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((uint32_t *)buffer32->line[dl])[(((x * 18) + 32 + 17) & 2047) + x_add] = (dat & 1) ? fg : bg;
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}
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}
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else
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{
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if (ega->seqregs[1] & 1)
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{
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for (xx = 0; xx < 8; xx++)
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((uint32_t *)buffer32->line[dl])[(((x << 3) + 32 + xx) & 2047) + x_add] = (dat & (0x80 >> xx)) ? fg : bg;
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}
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else
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{
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for (xx = 0; xx < 8; xx++)
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((uint32_t *)buffer32->line[dl])[(((x * 9) + 32 + xx) & 2047) + x_add] = (dat & (0x80 >> xx)) ? fg : bg;
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if ((chr & ~0x1f) != 0xc0 || !(ega->attrregs[0x10] & 4))
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((uint32_t *)buffer32->line[dl])[(((x * 9) + 32 + 8) & 2047) + x_add] = bg;
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else
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((uint32_t *)buffer32->line[dl])[(((x * 9) + 32 + 8) & 2047) + x_add] = (dat & 1) ? fg : bg;
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}
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}
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ega->ma += 4;
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ega->ma &= ega->vrammask;
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}
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}
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}
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void ega_render_2bpp_lowres(ega_t *ega)
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{
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int x_add = (enable_overscan) ? 8 : 0;
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int dl = ega_display_line(ega);
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int x;
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int offset;
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uint8_t edat[4];
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offset = ((8 - ega->scrollcache) << 1) + 16;
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for (x = 0; x <= ega->hdisp; x++)
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{
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if (ega->sc & 1 && !(ega->crtc[0x17] & 1))
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{
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edat[0] = ega->vram[(ega->ma << 1) + 0x8000];
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edat[1] = ega->vram[(ega->ma << 1) + 0x8001];
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}
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else
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{
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edat[0] = ega->vram[(ega->ma << 1)];
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edat[1] = ega->vram[(ega->ma << 1) + 1];
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}
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ega->ma += 4;
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ega->ma &= ega->vrammask;
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((uint32_t *)buffer32->line[dl])[(x << 4) + 14 + offset + x_add]= ((uint32_t *)buffer32->line[dl])[(x << 4) + 15 + offset + x_add] = ega->pallook[ega->egapal[edat[1] & 3]];
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((uint32_t *)buffer32->line[dl])[(x << 4) + 12 + offset + x_add] = ((uint32_t *)buffer32->line[dl])[(x << 4) + 13 + offset + x_add] = ega->pallook[ega->egapal[(edat[1] >> 2) & 3]];
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((uint32_t *)buffer32->line[dl])[(x << 4) + 10 + offset + x_add] = ((uint32_t *)buffer32->line[dl])[(x << 4) + 11 + offset + x_add] = ega->pallook[ega->egapal[(edat[1] >> 4) & 3]];
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((uint32_t *)buffer32->line[dl])[(x << 4) + 8 + offset + x_add] = ((uint32_t *)buffer32->line[dl])[(x << 4) + 9 + offset + x_add] = ega->pallook[ega->egapal[(edat[1] >> 6) & 3]];
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((uint32_t *)buffer32->line[dl])[(x << 4) + 6 + offset + x_add] = ((uint32_t *)buffer32->line[dl])[(x << 4) + 7 + offset + x_add] = ega->pallook[ega->egapal[(edat[0] >> 0) & 3]];
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((uint32_t *)buffer32->line[dl])[(x << 4) + 4 + offset + x_add] = ((uint32_t *)buffer32->line[dl])[(x << 4) + 5 + offset + x_add] = ega->pallook[ega->egapal[(edat[0] >> 2) & 3]];
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((uint32_t *)buffer32->line[dl])[(x << 4) + 2 + offset + x_add] = ((uint32_t *)buffer32->line[dl])[(x << 4) + 3 + offset + x_add] = ega->pallook[ega->egapal[(edat[0] >> 4) & 3]];
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((uint32_t *)buffer32->line[dl])[(x << 4) + offset + x_add] = ((uint32_t *)buffer32->line[dl])[(x << 4) + 1 + offset + x_add] = ega->pallook[ega->egapal[(edat[0] >> 6) & 3]];
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}
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}
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void ega_render_2bpp_highres(ega_t *ega)
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{
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int x_add = (enable_overscan) ? 8 : 0;
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int dl = ega_display_line(ega);
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int x;
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int offset;
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uint8_t edat[4];
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offset = ((8 - ega->scrollcache) << 1) + 16;
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for (x = 0; x <= ega->hdisp; x++)
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{
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if (ega->sc & 1 && !(ega->crtc[0x17] & 1))
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{
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edat[0] = ega->vram[(ega->ma << 1) + 0x8000];
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edat[1] = ega->vram[(ega->ma << 1) + 0x8001];
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}
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else
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{
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edat[0] = ega->vram[(ega->ma << 1)];
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edat[1] = ega->vram[(ega->ma << 1) + 1];
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}
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ega->ma += 4;
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ega->ma &= ega->vrammask;
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((uint32_t *)buffer32->line[dl])[(x << 4) + 7 + offset + x_add] = ega->pallook[ega->egapal[edat[1] & 3]];
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((uint32_t *)buffer32->line[dl])[(x << 4) + 6 + offset + x_add] = ega->pallook[ega->egapal[(edat[1] >> 2) & 3]];
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((uint32_t *)buffer32->line[dl])[(x << 4) + 5 + offset + x_add] = ega->pallook[ega->egapal[(edat[1] >> 4) & 3]];
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((uint32_t *)buffer32->line[dl])[(x << 4) + 4 + offset + x_add] = ega->pallook[ega->egapal[(edat[1] >> 6) & 3]];
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((uint32_t *)buffer32->line[dl])[(x << 4) + 3 + offset + x_add] = ega->pallook[ega->egapal[(edat[0] >> 0) & 3]];
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((uint32_t *)buffer32->line[dl])[(x << 4) + 2 + offset + x_add] = ega->pallook[ega->egapal[(edat[0] >> 2) & 3]];
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((uint32_t *)buffer32->line[dl])[(x << 4) + 1 + offset + x_add] = ega->pallook[ega->egapal[(edat[0] >> 4) & 3]];
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((uint32_t *)buffer32->line[dl])[(x << 4) + offset + x_add] = ega->pallook[ega->egapal[(edat[0] >> 6) & 3]];
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}
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}
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void ega_render_4bpp_lowres(ega_t *ega)
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{
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int x_add = (enable_overscan) ? 8 : 0;
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int dl = ega_display_line(ega);
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uint8_t dat;
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int x;
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int offset;
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uint8_t edat[4];
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offset = ((8 - ega->scrollcache) << 1) + 16;
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for (x = 0; x <= ega->hdisp; x++)
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{
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if (ega->sc & 1 && !(ega->crtc[0x17] & 1))
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{
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edat[0] = ega->vram[ega->ma | 0x8000];
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edat[1] = ega->vram[ega->ma | 0x8001];
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edat[2] = ega->vram[ega->ma | 0x8002];
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edat[3] = ega->vram[ega->ma | 0x8003];
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}
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else
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{
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edat[0] = ega->vram[ega->ma];
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edat[1] = ega->vram[ega->ma | 0x1];
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edat[2] = ega->vram[ega->ma | 0x2];
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edat[3] = ega->vram[ega->ma | 0x3];
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}
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ega->ma += 4;
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ega->ma &= ega->vrammask;
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dat = edatlookup[edat[0] & 3][edat[1] & 3] | (edatlookup[edat[2] & 3][edat[3] & 3] << 2);
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((uint32_t *)buffer32->line[dl])[(x << 4) + 14 + offset + x_add] = ((uint32_t *)buffer32->line[dl])[(x << 4) + 15 + offset + x_add] = ega->pallook[ega->egapal[(dat & 0xf) & ega->attrregs[0x12]]];
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((uint32_t *)buffer32->line[dl])[(x << 4) + 12 + offset + x_add] = ((uint32_t *)buffer32->line[dl])[(x << 4) + 13 + offset + x_add] = ega->pallook[ega->egapal[(dat >> 4) & ega->attrregs[0x12]]];
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dat = edatlookup[(edat[0] >> 2) & 3][(edat[1] >> 2) & 3] | (edatlookup[(edat[2] >> 2) & 3][(edat[3] >> 2) & 3] << 2);
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((uint32_t *)buffer32->line[dl])[(x << 4) + 10 + offset + x_add] = ((uint32_t *)buffer32->line[dl])[(x << 4) + 11 + offset + x_add] = ega->pallook[ega->egapal[(dat & 0xf) & ega->attrregs[0x12]]];
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((uint32_t *)buffer32->line[dl])[(x << 4) + 8 + offset + x_add] = ((uint32_t *)buffer32->line[dl])[(x << 4) + 9 + offset + x_add] = ega->pallook[ega->egapal[(dat >> 4) & ega->attrregs[0x12]]];
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dat = edatlookup[(edat[0] >> 4) & 3][(edat[1] >> 4) & 3] | (edatlookup[(edat[2] >> 4) & 3][(edat[3] >> 4) & 3] << 2);
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((uint32_t *)buffer32->line[dl])[(x << 4) + 6 + offset + x_add] = ((uint32_t *)buffer32->line[dl])[(x << 4) + 7 + offset + x_add] = ega->pallook[ega->egapal[(dat & 0xf) & ega->attrregs[0x12]]];
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((uint32_t *)buffer32->line[dl])[(x << 4) + 4 + offset + x_add] = ((uint32_t *)buffer32->line[dl])[(x << 4) + 5 + offset + x_add] = ega->pallook[ega->egapal[(dat >> 4) & ega->attrregs[0x12]]];
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dat = edatlookup[edat[0] >> 6][edat[1] >> 6] | (edatlookup[edat[2] >> 6][edat[3] >> 6] << 2);
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||||
((uint32_t *)buffer32->line[dl])[(x << 4) + 2 + offset + x_add] = ((uint32_t *)buffer32->line[dl])[(x << 4) + 3 + offset + x_add] = ega->pallook[ega->egapal[(dat & 0xf) & ega->attrregs[0x12]]];
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((uint32_t *)buffer32->line[dl])[(x << 4) + offset + x_add] = ((uint32_t *)buffer32->line[dl])[(x << 4) + 1 + offset + x_add] = ega->pallook[ega->egapal[(dat >> 4) & ega->attrregs[0x12]]];
|
||||
}
|
||||
}
|
||||
|
||||
void ega_render_4bpp_highres(ega_t *ega)
|
||||
{
|
||||
int x_add = (enable_overscan) ? 8 : 0;
|
||||
int dl = ega_display_line(ega);
|
||||
uint8_t dat;
|
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int x;
|
||||
int offset;
|
||||
uint8_t edat[4];
|
||||
|
||||
offset = (8 - ega->scrollcache) + 24;
|
||||
for (x = 0; x <= ega->hdisp; x++)
|
||||
{
|
||||
if (ega->sc & 1 && !(ega->crtc[0x17] & 1))
|
||||
{
|
||||
edat[0] = ega->vram[ega->ma | 0x8000];
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edat[1] = ega->vram[ega->ma | 0x8001];
|
||||
edat[2] = ega->vram[ega->ma | 0x8002];
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edat[3] = ega->vram[ega->ma | 0x8003];
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}
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else
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{
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edat[0] = ega->vram[ega->ma];
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edat[1] = ega->vram[ega->ma | 0x1];
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edat[2] = ega->vram[ega->ma | 0x2];
|
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edat[3] = ega->vram[ega->ma | 0x3];
|
||||
}
|
||||
ega->ma += 4;
|
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ega->ma &= ega->vrammask;
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||||
|
||||
dat = edatlookup[edat[0] & 3][edat[1] & 3] | (edatlookup[edat[2] & 3][edat[3] & 3] << 2);
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||||
((uint32_t *)buffer32->line[dl])[(x << 3) + 7 + offset + x_add] = ega->pallook[ega->egapal[(dat & 0xf) & ega->attrregs[0x12]]];
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||||
((uint32_t *)buffer32->line[dl])[(x << 3) + 6 + offset + x_add] = ega->pallook[ega->egapal[(dat >> 4) & ega->attrregs[0x12]]];
|
||||
dat = edatlookup[(edat[0] >> 2) & 3][(edat[1] >> 2) & 3] | (edatlookup[(edat[2] >> 2) & 3][(edat[3] >> 2) & 3] << 2);
|
||||
((uint32_t *)buffer32->line[dl])[(x << 3) + 5 + offset + x_add] = ega->pallook[ega->egapal[(dat & 0xf) & ega->attrregs[0x12]]];
|
||||
((uint32_t *)buffer32->line[dl])[(x << 3) + 4 + offset + x_add] = ega->pallook[ega->egapal[(dat >> 4) & ega->attrregs[0x12]]];
|
||||
dat = edatlookup[(edat[0] >> 4) & 3][(edat[1] >> 4) & 3] | (edatlookup[(edat[2] >> 4) & 3][(edat[3] >> 4) & 3] << 2);
|
||||
((uint32_t *)buffer32->line[dl])[(x << 3) + 3 + offset + x_add] = ega->pallook[ega->egapal[(dat & 0xf) & ega->attrregs[0x12]]];
|
||||
((uint32_t *)buffer32->line[dl])[(x << 3) + 2 + offset + x_add] = ega->pallook[ega->egapal[(dat >> 4) & ega->attrregs[0x12]]];
|
||||
dat = edatlookup[edat[0] >> 6][edat[1] >> 6] | (edatlookup[edat[2] >> 6][edat[3] >> 6] << 2);
|
||||
((uint32_t *)buffer32->line[dl])[(x << 3) + 1 + offset + x_add] = ega->pallook[ega->egapal[(dat & 0xf) & ega->attrregs[0x12]]];
|
||||
((uint32_t *)buffer32->line[dl])[(x << 3) + offset + x_add] = ega->pallook[ega->egapal[(dat >> 4) & ega->attrregs[0x12]]];
|
||||
}
|
||||
}
|
||||
37
src/VIDEO/vid_ega_render.h
Normal file
37
src/VIDEO/vid_ega_render.h
Normal file
@@ -0,0 +1,37 @@
|
||||
/*
|
||||
* 86Box A hypervisor and IBM PC system emulator that specializes in
|
||||
* running old operating systems and software designed for IBM
|
||||
* PC systems and compatibles from 1981 through fairly recent
|
||||
* system designs based on the PCI bus.
|
||||
*
|
||||
* This file is part of the 86Box distribution.
|
||||
*
|
||||
* EGA renderers.
|
||||
*
|
||||
* Version: @(#)vid_ega_render.h 1.0.0 2017/05/30
|
||||
*
|
||||
* Author: Sarah Walker, <http://pcem-emulator.co.uk/>
|
||||
* Miran Grca, <mgrca8@gmail.com>
|
||||
* Copyright 2008-2017 Sarah Walker.
|
||||
* Copyright 2016-2017 Miran Grca.
|
||||
*/
|
||||
|
||||
extern int firstline_draw, lastline_draw;
|
||||
extern int displine;
|
||||
extern int sc;
|
||||
|
||||
extern uint32_t ma, ca;
|
||||
extern int con, cursoron, cgablink;
|
||||
|
||||
extern int scrollcache;
|
||||
|
||||
extern uint8_t edatlookup[4][4];
|
||||
|
||||
void ega_render_blank(ega_t *ega);
|
||||
void ega_render_text_standard(ega_t *ega, int drawcursor);
|
||||
void ega_render_text_jega(ega_t *ega);
|
||||
|
||||
void ega_render_2bpp_lowres(ega_t *ega);
|
||||
void ega_render_2bpp_highres(ega_t *ega);
|
||||
void ega_render_4bpp_lowres(ega_t *ega);
|
||||
void ega_render_4bpp_highres(ega_t *ega);
|
||||
Reference in New Issue
Block a user