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Forgotten the vid_svga_render.c and .h files.

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OBattler
2025-06-30 18:48:53 +02:00
parent 7abddb0b35
commit fe3ad0000b
2 changed files with 121 additions and 0 deletions
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1
src/include/86box/vid_svga_render.h
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@@ -55,6 +55,7 @@ extern void svga_render_4bpp_lowres(svga_t *svga);
extern void svga_render_4bpp_highres(svga_t *svga);
extern void svga_render_8bpp_lowres(svga_t *svga);
extern void svga_render_8bpp_highres(svga_t *svga);
extern void svga_render_4bpp_tseng_highres(svga_t *svga);
extern void svga_render_8bpp_clone_highres(svga_t *svga);
extern void svga_render_8bpp_tseng_lowres(svga_t *svga);
extern void svga_render_8bpp_tseng_highres(svga_t *svga);

120
src/video/vid_svga_render.c
View File

@@ -913,6 +913,126 @@ void svga_render_4bpp_highres(svga_t *svga) { svga_render_indexed_gfx(svga, true
void svga_render_8bpp_lowres(svga_t *svga) { svga_render_indexed_gfx(svga, false, true); }
void svga_render_8bpp_highres(svga_t *svga) { svga_render_indexed_gfx(svga, true, true); }
void
svga_render_4bpp_tseng_highres(svga_t *svga)
{
int changed_offset;
int x;
int oddeven;
uint32_t addr;
uint32_t *p;
uint8_t edat[4];
uint8_t dat;
uint32_t changed_addr;
if ((svga->displine + svga->y_add) < 0)
return;
if (svga->force_old_addr) {
changed_offset = (svga->memaddr + (svga->scanline & ~svga->crtc[0x17] & 3) * 0x8000) >> 12;
if (svga->changedvram[changed_offset] || svga->changedvram[changed_offset + 1] || svga->fullchange) {
p = &svga->monitor->target_buffer->line[svga->displine + svga->y_add][svga->x_add];
if (svga->firstline_draw == 2000)
svga->firstline_draw = svga->displine;
svga->lastline_draw = svga->displine;
for (x = 0; x <= (svga->hdisp + svga->scrollcache); x += 8) {
addr = svga->memaddr;
oddeven = 0;
if (!(svga->crtc[0x17] & 0x40)) {
addr = (addr << 1) & svga->vram_mask;
if (svga->seqregs[1] & 4)
oddeven = (addr & 4) ? 1 : 0;
addr &= ~7;
if ((svga->crtc[0x17] & 0x20) && (svga->memaddr & 0x20000))
addr |= 4;
if (!(svga->crtc[0x17] & 0x20) && (svga->memaddr & 0x8000))
addr |= 4;
}
if (!(svga->crtc[0x17] & 0x01))
addr = (addr & ~0x8000) | ((svga->scanline & 1) ? 0x8000 : 0);
if (!(svga->crtc[0x17] & 0x02))
addr = (addr & ~0x10000) | ((svga->scanline & 2) ? 0x10000 : 0);
if (svga->seqregs[1] & 4) {
edat[0] = svga->vram[addr | oddeven];
edat[2] = svga->vram[addr | oddeven | 0x2];
edat[1] = edat[3] = 0;
svga->memaddr += 2;
} else {
*(uint32_t *) (&edat[0]) = *(uint32_t *) (&svga->vram[addr]);
svga->memaddr += 4;
}
svga->memaddr &= svga->vram_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;
}
}
} else {
changed_addr = svga->remap_func(svga, svga->memaddr);
if (svga->changedvram[changed_addr >> 12] || svga->changedvram[(changed_addr >> 12) + 1] || svga->fullchange) {
p = &svga->monitor->target_buffer->line[svga->displine + svga->y_add][svga->x_add];
if (svga->firstline_draw == 2000)
svga->firstline_draw = svga->displine;
svga->lastline_draw = svga->displine;
for (x = 0; x <= (svga->hdisp + svga->scrollcache); x += 8) {
addr = svga->remap_func(svga, svga->memaddr);
oddeven = 0;
if (svga->seqregs[1] & 4) {
oddeven = (addr & 4) ? 1 : 0;
edat[0] = svga->vram[addr | oddeven];
edat[2] = svga->vram[addr | oddeven | 0x2];
edat[1] = edat[3] = 0;
svga->memaddr += 2;
} else {
*(uint32_t *) (&edat[0]) = *(uint32_t *) (&svga->vram[addr]);
svga->memaddr += 4;
}
svga->memaddr &= svga->vram_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_clone_highres(svga_t *svga)
{