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86Box-fork/src/vid_svga_render.c
OBattler 91075fb627 RTL8029AS now works properly (patch from TheCollector1995 with some modifications by me); 
SVGA emulation now has partial support for 12x24 text mode used by 48k HECON.SYS;
LEA AX,DX now once again issues #UD on 286+ like it should;
FF /7 is now correctly an alias of FF /6 on 8080x;
Hard disk configuration dialog now uses Segoe UI 9pt font instead of MS Sans Serif 8pt;
Removed excess logging from serial mouse and x86seg.c;
Applied mainline PCem PIT MSW1 fix commit;
IMG-based floppy emulation now takes GAP4 and post-sector delays into account;
Comemnted out emulation of non-Overdrive Pentium II's.
2016-08-13 03:32:38 +02:00

853 lines
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#include "ibm.h"
#include "mem.h"
#include "video.h"
#include "vid_svga.h"
#include "vid_svga_render.h"
#include <stdio.h>
void svga_render_blank(svga_t *svga)
{
int x, xx;
int y_add = (enable_overscan) ? 16 : 0;
int x_add = y_add >> 1;
if (svga->firstline_draw == 2000)
svga->firstline_draw = svga->displine;
svga->lastline_draw = svga->displine;
for (x = 0; x < svga->hdisp; x++)
{
switch (svga->seqregs[1] & 9)
{
case 0:
for (xx = 0; xx < 9; xx++) ((uint32_t *)buffer32->line[svga->displine + y_add])[(x * 9) + xx + 32 + x_add] = 0;
break;
case 1:
for (xx = 0; xx < 8; xx++) ((uint32_t *)buffer32->line[svga->displine + y_add])[(x * 8) + xx + 32 + x_add] = 0;
break;
case 8:
for (xx = 0; xx < 18; xx++) ((uint32_t *)buffer32->line[svga->displine + y_add])[(x * 18) + xx + 32 + x_add] = 0;
break;
case 9:
for (xx = 0; xx < 16; xx++) ((uint32_t *)buffer32->line[svga->displine + y_add])[(x * 16) + xx + 32 + x_add] = 0;
break;
}
}
}
void svga_render_text_40(svga_t *svga)
{
int y_add = (enable_overscan) ? 16 : 0;
int x_add = y_add >> 1;
if (svga->firstline_draw == 2000)
svga->firstline_draw = svga->displine;
svga->lastline_draw = svga->displine;
if (svga->fullchange)
{
uint32_t *p = &((uint32_t *)buffer32->line[svga->displine + y_add])[32 + x_add];
int x, xx;
int drawcursor;
uint8_t chr, attr, dat;
uint32_t charaddr;
int fg, bg;
int xinc = (svga->seqregs[1] & 1) ? 16 : 18;
for (x = 0; x < svga->hdisp; x += xinc)
{
drawcursor = ((svga->ma == svga->ca) && svga->con && svga->cursoron);
chr = svga->vram[svga->ma << 1];
attr = svga->vram[(svga->ma << 1) + 1];
if (attr & 8) charaddr = svga->charsetb + (chr * 128);
else charaddr = svga->charseta + (chr * 128);
if (drawcursor)
{
bg = svga->pallook[svga->egapal[attr & 15]];
fg = svga->pallook[svga->egapal[attr >> 4]];
}
else
{
fg = svga->pallook[svga->egapal[attr & 15]];
bg = svga->pallook[svga->egapal[attr >> 4]];
if (attr & 0x80 && svga->attrregs[0x10] & 8)
{
bg = svga->pallook[svga->egapal[(attr >> 4) & 7]];
if (svga->blink & 16)
fg = bg;
}
}
dat = svga->vram[charaddr + (svga->sc << 2)];
if (svga->seqregs[1] & 1)
{
for (xx = 0; xx < 16; xx += 2)
p[xx] = p[xx + 1] = (dat & (0x80 >> (xx >> 1))) ? fg : bg;
}
else
{
for (xx = 0; xx < 16; xx += 2)
p[xx] = p[xx + 1] = (dat & (0x80 >> (xx >> 1))) ? fg : bg;
if ((chr & ~0x1F) != 0xC0 || !(svga->attrregs[0x10] & 4))
p[16] = p[17] = bg;
else
p[16] = p[17] = (dat & 1) ? fg : bg;
}
svga->ma += 4;
p += xinc;
}
svga->ma = svga_mask_addr(svga->ma, svga);
}
}
void svga_render_text_40_12(svga_t *svga)
{
int y_add = (enable_overscan) ? 16 : 0;
int x_add = (enable_overscan) ? 12 : 0;
if (svga->firstline_draw == 2000)
svga->firstline_draw = svga->displine;
svga->lastline_draw = svga->displine;
if (svga->fullchange)
{
uint32_t *p = &((uint32_t *)buffer32->line[svga->displine + y_add])[32 + x_add];
int x, xx;
int drawcursor;
uint8_t chr, attr;
uint16_t dat;
uint32_t charaddr;
int fg, bg;
int xinc = 24;
for (x = 0; x < svga->hdisp; x += xinc)
{
drawcursor = ((svga->ma == svga->ca) && svga->con && svga->cursoron);
chr = svga->vram[svga->ma << 1];
attr = svga->vram[(svga->ma << 1) + 1];
if (attr & 8) charaddr = svga->charsetb + (chr * 128);
else charaddr = svga->charseta + (chr * 128);
if (drawcursor)
{
bg = svga->pallook[svga->egapal[attr & 15]];
fg = svga->pallook[svga->egapal[attr >> 4]];
}
else
{
fg = svga->pallook[svga->egapal[attr & 15]];
bg = svga->pallook[svga->egapal[attr >> 4]];
if (attr & 0x80 && svga->attrregs[0x10] & 8)
{
bg = svga->pallook[svga->egapal[(attr >> 4) & 7]];
if (svga->blink & 16)
fg = bg;
}
}
dat = *(uint16_t *) &(svga->vram[charaddr + (svga->sc << 2) - 1]);
for (xx = 0; xx < 24; xx += 2)
p[xx] = p[xx + 1] = (dat & (0x800 >> (xx >> 1))) ? fg : bg;
svga->ma += 4;
p += xinc;
}
svga->ma = svga_mask_addr(svga->ma, svga);
}
}
void svga_render_text_80(svga_t *svga)
{
FILE *f;
int y_add = (enable_overscan) ? 16 : 0;
int x_add = y_add >> 1;
if (svga->firstline_draw == 2000)
svga->firstline_draw = svga->displine;
svga->lastline_draw = svga->displine;
if (svga->fullchange)
{
uint32_t *p = &((uint32_t *)buffer32->line[svga->displine + y_add])[32 + x_add];
int x, xx;
int drawcursor;
uint8_t chr, attr, dat;
uint32_t charaddr;
int fg, bg;
int xinc = (svga->seqregs[1] & 1) ? 8 : 9;
for (x = 0; x < svga->hdisp; x += xinc)
{
drawcursor = ((svga->ma == svga->ca) && svga->con && svga->cursoron);
chr = svga->vram[svga->ma << 1];
attr = svga->vram[(svga->ma << 1) + 1];
if (attr & 8) charaddr = svga->charsetb + (chr * 128);
else charaddr = svga->charseta + (chr * 128);
if (drawcursor)
{
bg = svga->pallook[svga->egapal[attr & 15]];
fg = svga->pallook[svga->egapal[attr >> 4]];
}
else
{
fg = svga->pallook[svga->egapal[attr & 15]];
bg = svga->pallook[svga->egapal[attr >> 4]];
if (attr & 0x80 && svga->attrregs[0x10] & 8)
{
bg = svga->pallook[svga->egapal[(attr >> 4) & 7]];
if (svga->blink & 16)
fg = bg;
}
}
dat = svga->vram[charaddr + (svga->sc << 2)];
if (svga->seqregs[1] & 1)
{
for (xx = 0; xx < 8; xx++)
p[xx] = (dat & (0x80 >> xx)) ? fg : bg;
}
else
{
for (xx = 0; xx < 8; xx++)
p[xx] = (dat & (0x80 >> xx)) ? fg : bg;
if ((chr & ~0x1F) != 0xC0 || !(svga->attrregs[0x10] & 4))
p[8] = bg;
else
p[8] = (dat & 1) ? fg : bg;
}
svga->ma += 4;
p += xinc;
}
svga->ma = svga_mask_addr(svga->ma, svga);
}
}
void svga_render_text_80_12(svga_t *svga)
{
FILE *f;
int y_add = (enable_overscan) ? 16 : 0;
int x_add = (enable_overscan) ? 12 : 0;
if (svga->firstline_draw == 2000)
svga->firstline_draw = svga->displine;
svga->lastline_draw = svga->displine;
if (svga->fullchange)
{
uint32_t *p = &((uint32_t *)buffer32->line[svga->displine + y_add])[32 + x_add];
int x, xx;
int drawcursor;
uint8_t chr, attr;
uint16_t dat;
uint32_t charaddr;
int fg, bg;
int xinc = 12;
for (x = 0; x < svga->hdisp; x += xinc)
{
drawcursor = ((svga->ma == (svga->ca + 8)) && svga->con && svga->cursoron);
chr = svga->vram[svga->ma << 1];
attr = svga->vram[(svga->ma << 1) + 1];
if (attr & 8) charaddr = svga->charsetb + (chr * 128);
else charaddr = svga->charseta + (chr * 128);
if (drawcursor)
{
bg = svga->pallook[svga->egapal[attr & 15]];
fg = svga->pallook[svga->egapal[attr >> 4]];
}
else
{
fg = svga->pallook[svga->egapal[attr & 15]];
bg = svga->pallook[svga->egapal[attr >> 4]];
if (attr & 0x80 && svga->attrregs[0x10] & 8)
{
bg = svga->pallook[svga->egapal[(attr >> 4) & 7]];
if (svga->blink & 16)
fg = bg;
}
}
dat = svga->vram[charaddr + (svga->sc << 2)] << 4;
dat |= ((svga->vram[charaddr + (svga->sc << 2) + 1]) >> 4);
for (xx = 0; xx < 12; xx++)
p[xx] = (dat & (0x800 >> xx)) ? fg : bg;
svga->ma += 4;
p += xinc;
}
svga->ma = svga_mask_addr(svga->ma, svga);
}
}
void svga_render_2bpp_lowres(svga_t *svga)
{
int changed_offset;
int y_add = (enable_overscan) ? 16 : 0;
int x_add = y_add >> 1;
if (svga->sc & 1 && !(svga->crtc[0x17] & 1))
changed_offset = (svga->ma << 1) >> 12;
else
changed_offset = ((svga->ma << 1) + 0x8000) >> 12;
if (svga->changedvram[changed_offset] || svga->changedvram[changed_offset + 1] || svga->fullchange)
{
int x;
int offset = ((8 - svga->scrollcache) << 1) + 16;
uint32_t *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)
{
uint8_t dat[2];
if (svga->sc & 1 && !(svga->crtc[0x17] & 1))
{
dat[0] = svga->vram[(svga->ma << 1) + 0x8000];
dat[1] = svga->vram[(svga->ma << 1) + 0x8001];
}
else
{
dat[0] = svga->vram[(svga->ma << 1)];
dat[1] = svga->vram[(svga->ma << 1) + 1];
}
svga->ma += 4;
svga->ma = svga_mask_addr(svga->ma, svga);
p[0] = p[1] = svga->pallook[svga->egapal[(dat[0] >> 6) & 3]];
p[2] = p[3] = svga->pallook[svga->egapal[(dat[0] >> 4) & 3]];
p[4] = p[5] = svga->pallook[svga->egapal[(dat[0] >> 2) & 3]];
p[6] = p[7] = svga->pallook[svga->egapal[dat[0] & 3]];
p[8] = p[9] = svga->pallook[svga->egapal[(dat[1] >> 6) & 3]];
p[10] = p[11] = svga->pallook[svga->egapal[(dat[1] >> 4) & 3]];
p[12] = p[13] = svga->pallook[svga->egapal[(dat[1] >> 2) & 3]];
p[14] = p[15] = svga->pallook[svga->egapal[dat[1] & 3]];
p += 16;
}
}
}
void svga_render_2bpp_highres(svga_t *svga)
{
int changed_offset;
int y_add = (enable_overscan) ? 16 : 0;
int x_add = y_add >> 1;
if (svga->sc & 1 && !(svga->crtc[0x17] & 1))
changed_offset = ((svga->ma << 1) | 0x8000) >> 12;
else
changed_offset = (svga->ma << 1) >> 12;
if (svga->changedvram[changed_offset] || svga->changedvram[changed_offset + 1] || svga->fullchange)
{
int x;
int offset = (8 - svga->scrollcache) + 24;
uint32_t *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)
{
uint8_t dat[2];
if (svga->sc & 1 && !(svga->crtc[0x17] & 1))
{
dat[0] = svga->vram[(svga->ma << 1) + 0x8000];
dat[1] = svga->vram[(svga->ma << 1) + 0x8001];
}
else
{
dat[0] = svga->vram[(svga->ma << 1)];
dat[1] = svga->vram[(svga->ma << 1) + 1];
}
svga->ma += 4;
svga->ma = svga_mask_addr(svga->ma, svga);
p[0] = svga->pallook[svga->egapal[(dat[0] >> 6) & 3]];
p[1] = svga->pallook[svga->egapal[(dat[0] >> 4) & 3]];
p[2] = svga->pallook[svga->egapal[(dat[0] >> 2) & 3]];
p[3] = svga->pallook[svga->egapal[dat[0] & 3]];
p[4] = svga->pallook[svga->egapal[(dat[1] >> 6) & 3]];
p[5] = svga->pallook[svga->egapal[(dat[1] >> 4) & 3]];
p[6] = svga->pallook[svga->egapal[(dat[1] >> 2) & 3]];
p[7] = svga->pallook[svga->egapal[dat[1] & 3]];
p += 8;
}
}
}
void svga_render_4bpp_lowres(svga_t *svga)
{
int y_add = (enable_overscan) ? 16 : 0;
int x_add = y_add >> 1;
if (svga->changedvram[svga->ma >> 12] || svga->changedvram[(svga->ma >> 12) + 1] || svga->fullchange)
{
int x;
int offset = ((8 - svga->scrollcache) << 1) + 16;
uint32_t *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)
{
uint8_t edat[4];
uint8_t dat;
*(uint32_t *)(&edat[0]) = *(uint32_t *)(&svga->vram[svga->ma]);
svga->ma += 4;
svga->ma = svga_mask_addr(svga->ma, svga);
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 changed_offset;
int y_add = (enable_overscan) ? 16 : 0;
int x_add = y_add >> 1;
if (svga->sc & 1 && !(svga->crtc[0x17] & 1))
changed_offset = (svga->ma | 0x8000) >> 12;
else
changed_offset = svga->ma >> 12;
if (svga->changedvram[changed_offset] || svga->changedvram[changed_offset + 1] || svga->fullchange)
{
int x;
int offset = (8 - svga->scrollcache) + 24;
uint32_t *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)
{
uint8_t edat[4];
uint8_t dat;
if (svga->sc & 1 && !(svga->crtc[0x17] & 1))
*(uint32_t *)(&edat[0]) = *(uint32_t *)(&svga->vram[svga->ma | 0x8000]);
else
*(uint32_t *)(&edat[0]) = *(uint32_t *)(&svga->vram[svga->ma]);
svga->ma += 4;
svga->ma = svga_mask_addr(svga->ma, svga);
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) ? 16 : 0;
int x_add = y_add >> 1;
if (svga->changedvram[svga->ma >> 12] || svga->changedvram[(svga->ma >> 12) + 1] || svga->fullchange)
{
int x;
int offset = (8 - (svga->scrollcache & 6)) + 24;
uint32_t *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)
{
uint32_t dat = *(uint32_t *)(&svga->vram[svga->ma & svga->vrammask]);
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_mask_addr(svga->ma, svga);
}
// return NULL;
}
void svga_render_8bpp_highres(svga_t *svga)
{
int y_add = (enable_overscan) ? 16 : 0;
int x_add = y_add >> 1;
if (svga->changedvram[svga->ma >> 12] || svga->changedvram[(svga->ma >> 12) + 1] || svga->fullchange)
{
int x;
int offset = (8 - ((svga->scrollcache & 6) >> 1)) + 24;
uint32_t *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)
{
uint32_t dat;
dat = *(uint32_t *)(&svga->vram[svga->ma & svga->vrammask]);
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->vrammask]);
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_mask_addr(svga->ma, svga);
}
// return NULL;
}
void svga_render_15bpp_lowres(svga_t *svga)
{
int y_add = (enable_overscan) ? 16 : 0;
int x_add = y_add >> 1;
if (svga->changedvram[svga->ma >> 12] || svga->changedvram[(svga->ma >> 12) + 1] || svga->fullchange)
{
int x;
int offset = (8 - (svga->scrollcache & 6)) + 24;
uint32_t *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)
{
uint32_t dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 1)) & svga->vrammask]);
p[x] = video_15to32[dat & 0xffff];
p[x + 1] = video_15to32[dat >> 16];
dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 1) + 4) & svga->vrammask]);
p[x] = video_15to32[dat & 0xffff];
p[x + 1] = video_15to32[dat >> 16];
}
svga->ma += x << 1;
svga->ma = svga_mask_addr(svga->ma, svga);
}
}
void svga_render_15bpp_highres(svga_t *svga)
{
int y_add = (enable_overscan) ? 16 : 0;
int x_add = y_add >> 1;
if (svga->changedvram[svga->ma >> 12] || svga->changedvram[(svga->ma >> 12) + 1] || svga->fullchange)
{
int x;
int offset = (8 - ((svga->scrollcache & 6) >> 1)) + 24;
uint32_t *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)
{
uint32_t dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 1)) & svga->vrammask]);
p[x] = video_15to32[dat & 0xffff];
p[x + 1] = video_15to32[dat >> 16];
dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 1) + 4) & svga->vrammask]);
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->vrammask]);
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->vrammask]);
p[x + 6] = video_15to32[dat & 0xffff];
p[x + 7] = video_15to32[dat >> 16];
}
svga->ma += x << 1;
svga->ma = svga_mask_addr(svga->ma, svga);
}
}
void svga_render_16bpp_lowres(svga_t *svga)
{
int y_add = (enable_overscan) ? 16 : 0;
int x_add = y_add >> 1;
if (svga->changedvram[svga->ma >> 12] || svga->changedvram[(svga->ma >> 12) + 1] || svga->fullchange)
{
int x;
int offset = (8 - (svga->scrollcache & 6)) + 24;
uint32_t *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)
{
uint32_t dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 1)) & svga->vrammask]);
p[x] = video_16to32[dat & 0xffff];
p[x + 1] = video_16to32[dat >> 16];
dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 1) + 4) & svga->vrammask]);
p[x] = video_16to32[dat & 0xffff];
p[x + 1] = video_16to32[dat >> 16];
}
svga->ma += x << 1;
svga->ma = svga_mask_addr(svga->ma, svga);
}
}
void svga_render_16bpp_highres(svga_t *svga)
{
int y_add = (enable_overscan) ? 16 : 0;
int x_add = y_add >> 1;
if (svga->changedvram[svga->ma >> 12] || svga->changedvram[(svga->ma >> 12) + 1] || svga->fullchange)
{
int x;
int offset = (8 - ((svga->scrollcache & 6) >> 1)) + 24;
uint32_t *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)
{
uint32_t dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 1)) & svga->vrammask]);
p[x] = video_16to32[dat & 0xffff];
p[x + 1] = video_16to32[dat >> 16];
dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 1) + 4) & svga->vrammask]);
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->vrammask]);
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->vrammask]);
p[x + 6] = video_16to32[dat & 0xffff];
p[x + 7] = video_16to32[dat >> 16];
}
svga->ma += x << 1;
svga->ma = svga_mask_addr(svga->ma, svga);
}
}
void svga_render_24bpp_lowres(svga_t *svga)
{
int x, offset;
uint32_t fg;
int y_add = (enable_overscan) ? 16 : 0;
int x_add = y_add >> 1;
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 += 3;
svga->ma = svga_mask_addr(svga->ma, svga);
((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;
}
}
}
void svga_render_24bpp_highres(svga_t *svga)
{
int y_add = (enable_overscan) ? 16 : 0;
int x_add = y_add >> 1;
if (svga->changedvram[svga->ma >> 12] || svga->changedvram[(svga->ma >> 12) + 1] || svga->fullchange)
{
int x;
int offset = (8 - ((svga->scrollcache & 6) >> 1)) + 24;
uint32_t *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)
{
uint32_t dat = *(uint32_t *)(&svga->vram[svga->ma & svga->vrammask]);
p[x] = dat & 0xffffff;
dat = *(uint32_t *)(&svga->vram[(svga->ma + 3) & svga->vrammask]);
p[x + 1] = dat & 0xffffff;
dat = *(uint32_t *)(&svga->vram[(svga->ma + 6) & svga->vrammask]);
p[x + 2] = dat & 0xffffff;
dat = *(uint32_t *)(&svga->vram[(svga->ma + 9) & svga->vrammask]);
p[x + 3] = dat & 0xffffff;
svga->ma += 12;
}
svga->ma = svga_mask_addr(svga->ma, svga);
}
}
void svga_render_32bpp_lowres(svga_t *svga)
{
int x, offset;
uint32_t fg;
int y_add = (enable_overscan) ? 16 : 0;
int x_add = y_add >> 1;
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_mask_addr(svga->ma, svga);
((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) ? 16 : 0;
int x_add = y_add >> 1;
if (svga->changedvram[svga->ma >> 12] || svga->changedvram[(svga->ma >> 12) + 1] || svga->changedvram[(svga->ma >> 12) + 2] || svga->fullchange)
{
int x;
int offset = (8 - ((svga->scrollcache & 6) >> 1)) + 24;
uint32_t *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++)
{
uint32_t dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 2)) & svga->vrammask]);
p[x] = dat & 0xffffff;
}
svga->ma += 4;
svga->ma = svga_mask_addr(svga->ma, svga);
}
}
void svga_render_ABGR8888_highres(svga_t *svga)
{
int y_add = (enable_overscan) ? 16 : 0;
int x_add = y_add >> 1;
if (svga->changedvram[svga->ma >> 12] || svga->changedvram[(svga->ma >> 12) + 1] || svga->changedvram[(svga->ma >> 12) + 2] || svga->fullchange)
{
int x;
int offset = (8 - ((svga->scrollcache & 6) >> 1)) + 24;
uint32_t *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++)
{
uint32_t dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 2)) & svga->vrammask]);
p[x] = ((dat & 0xff0000) >> 16) | (dat & 0x00ff00) | ((dat & 0x0000ff) << 16);
}
svga->ma += 4;
svga->ma = svga_mask_addr(svga->ma, svga);
}
}
void svga_render_RGBA8888_highres(svga_t *svga)
{
int y_add = (enable_overscan) ? 16 : 0;
int x_add = y_add >> 1;
if (svga->changedvram[svga->ma >> 12] || svga->changedvram[(svga->ma >> 12) + 1] || svga->changedvram[(svga->ma >> 12) + 2] || svga->fullchange)
{
int x;
int offset = (8 - ((svga->scrollcache & 6) >> 1)) + 24;
uint32_t *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++)
{
uint32_t dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 2)) & svga->vrammask]);
p[x] = dat >> 8;
}
svga->ma += 4;
svga->ma = svga_mask_addr(svga->ma, svga);
}
}
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