#include "ibm.h"
#include "mem.h"
#include "video.h"
#include "vid_svga.h"
#include "vid_svga_render.h"
#include "vid_svga_render_remap.h"

void svga_render_null(svga_t *svga) {
	if (svga->firstline_draw == 2000)
		svga->firstline_draw = svga->displine;
	svga->lastline_draw = svga->displine;
}

void svga_render_blank(svga_t *svga) {
	int x, xx;

	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])[(x * 9) + xx + 32] = 0;
			break;
		case 1:
			for (xx = 0; xx < 8; xx++)
				((uint32_t *)buffer32->line[svga->displine])[(x * 8) + xx + 32] = 0;
			break;
		case 8:
			for (xx = 0; xx < 18; xx++)
				((uint32_t *)buffer32->line[svga->displine])[(x * 18) + xx + 32] = 0;
			break;
		case 9:
			for (xx = 0; xx < 16; xx++)
				((uint32_t *)buffer32->line[svga->displine])[(x * 16) + xx + 32] = 0;
			break;
		}
	}
}

void svga_render_text_40(svga_t *svga) {
	if (svga->firstline_draw == 2000)
		svga->firstline_draw = svga->displine;
	svga->lastline_draw = svga->displine;

	if (svga->fullchange) {
		int offset = ((8 - svga->scrollcache) << 1) + 16;
		uint32_t *p = &((uint32_t *)buffer32->line[svga->displine])[offset];
		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) {
			uint32_t addr = svga->remap_func(svga, svga->ma) & svga->vram_display_mask;

			drawcursor = ((svga->ma == svga->ca) && svga->con && svga->cursoron);
			chr = svga->vram[addr];
			attr = svga->vram[addr + 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->vram_display_mask;
	}
}

void svga_render_text_80(svga_t *svga) {
	if (svga->firstline_draw == 2000)
		svga->firstline_draw = svga->displine;
	svga->lastline_draw = svga->displine;

	if (svga->fullchange) {
		int offset = (8 - svga->scrollcache) + 24;
		uint32_t *p = &((uint32_t *)buffer32->line[svga->displine])[offset];
		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) {
			uint32_t addr = svga->remap_func(svga, svga->ma) & svga->vram_display_mask;

			drawcursor = ((svga->ma == svga->ca) && svga->con && svga->cursoron);
			chr = svga->vram[addr];
			attr = svga->vram[addr + 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->vram_display_mask;
	}
}

void svga_render_text_80_ksc5601(svga_t *svga) {
	if (svga->firstline_draw == 2000)
		svga->firstline_draw = svga->displine;
	svga->lastline_draw = svga->displine;

	if (svga->fullchange) {
		int offset = (8 - svga->scrollcache) + 24;
		uint32_t *p = &((uint32_t *)buffer32->line[svga->displine])[offset];
		int x, xx;
		int drawcursor;
		uint8_t chr, attr, dat, nextchr;
		uint32_t charaddr;
		int fg, bg;
		int xinc = (svga->seqregs[1] & 1) ? 8 : 9;

		for (x = 0; x < svga->hdisp; x += xinc) {
			uint32_t addr = svga->remap_func(svga, svga->ma) & svga->vram_display_mask;

			drawcursor = ((svga->ma == svga->ca) && svga->con && svga->cursoron);
			chr = svga->vram[addr];
			nextchr = svga->vram[addr + 8];
			attr = svga->vram[addr + 1];

			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;
				}
			}

			if (x + xinc < svga->hdisp && (chr & (nextchr | svga->ksc5601_sbyte_mask) & 0x80)) {
				if ((chr == svga->ksc5601_udc_area_msb[0] || chr == svga->ksc5601_udc_area_msb[1]) && (nextchr > 0xa0 && nextchr < 0xff))
					dat = fontdatksc5601_user[(chr == svga->ksc5601_udc_area_msb[1] ? 96 : 0) + (nextchr & 0x7F) - 0x20][svga->sc];
				else if (nextchr & 0x80) {
					if (svga->ksc5601_swap_mode == 1 && (nextchr > 0xa0 && nextchr < 0xff)) {
						if (chr >= 0x80 && chr < 0x99)
							chr += 0x30;
						else if (chr >= 0xB0 && chr < 0xC9)
							chr -= 0x30;
					}
					dat = fontdatksc5601[((chr & 0x7F) << 7) | (nextchr & 0x7F)][svga->sc];
				} else
					dat = 0xFF;
			} else {
				if (attr & 8)
					charaddr = svga->charsetb + (chr * 128);
				else
					charaddr = svga->charseta + (chr * 128);

				if ((svga->ksc5601_english_font_type >> 8) == 1)
					dat = fontdatksc5601[((svga->ksc5601_english_font_type & 0x7F) << 7) | (chr >> 1)][((chr & 1) << 4) | svga->sc];
				else
					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;

			if (x + xinc < svga->hdisp && (chr & (nextchr | svga->ksc5601_sbyte_mask) & 0x80)) {
				attr = svga->vram[((svga->ma << 1) + 1) & svga->vram_display_mask];

				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;
					}
				}

				if ((chr == svga->ksc5601_udc_area_msb[0] || chr == svga->ksc5601_udc_area_msb[1]) && (nextchr > 0xa0 && nextchr < 0xff))
					dat = fontdatksc5601_user[(chr == svga->ksc5601_udc_area_msb[1] ? 96 : 0) + (nextchr & 0x7F) - 0x20][svga->sc + 16];
				else if (nextchr & 0x80) {
					dat = fontdatksc5601[((chr & 0x7F) << 7) | (nextchr & 0x7F)][svga->sc + 16];
				} else
					dat = 0xFF;
				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;
				x += xinc;
			}
		}
		svga->ma &= svga->vram_display_mask;
	}
}

void svga_render_2bpp_lowres(svga_t *svga) {
	uint32_t changed_addr = svga->remap_func(svga, svga->ma);

	if (svga->changedvram[changed_addr >> 12] || svga->changedvram[(changed_addr >> 12) + 1] || svga->fullchange) {
		int x;
		int offset = ((8 - svga->scrollcache) << 1) + 16;
		uint32_t *p = &((uint32_t *)buffer32->line[svga->displine])[offset];

		if (svga->firstline_draw == 2000)
			svga->firstline_draw = svga->displine;
		svga->lastline_draw = svga->displine;

		for (x = 0; x <= svga->hdisp; x += 16) {
			uint32_t addr = svga->remap_func(svga, svga->ma);
			uint8_t dat[2];

			dat[0] = svga->vram[addr];
			dat[1] = svga->vram[addr + 1];
			svga->ma += 4;
			svga->ma &= svga->vram_display_mask;

			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) {
	uint32_t changed_addr = svga->remap_func(svga, svga->ma);

	if (svga->changedvram[changed_addr >> 12] || svga->changedvram[(changed_addr >> 12) + 1] || svga->fullchange) {
		int x;
		int offset = (8 - svga->scrollcache) + 24;
		uint32_t *p = &((uint32_t *)buffer32->line[svga->displine])[offset];

		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 addr = svga->remap_func(svga, svga->ma);
			uint8_t dat[2];

			dat[0] = svga->vram[addr];
			dat[1] = svga->vram[addr + 1];
			svga->ma += 4;
			svga->ma &= svga->vram_display_mask;

			*p++ = svga->pallook[svga->egapal[(dat[0] >> 6) & 3]];
			*p++ = svga->pallook[svga->egapal[(dat[0] >> 4) & 3]];
			*p++ = svga->pallook[svga->egapal[(dat[0] >> 2) & 3]];
			*p++ = svga->pallook[svga->egapal[dat[0] & 3]];
			*p++ = svga->pallook[svga->egapal[(dat[1] >> 6) & 3]];
			*p++ = svga->pallook[svga->egapal[(dat[1] >> 4) & 3]];
			*p++ = svga->pallook[svga->egapal[(dat[1] >> 2) & 3]];
			*p++ = svga->pallook[svga->egapal[dat[1] & 3]];
		}
	}
}

void svga_render_4bpp_lowres(svga_t *svga) {
	uint32_t changed_addr = svga->remap_func(svga, svga->ma);

	if (svga->changedvram[changed_addr >> 12] || svga->changedvram[(changed_addr >> 12) + 1] || svga->fullchange) {
		int x;
		int offset = ((8 - svga->scrollcache) << 1) + 16;
		uint32_t *p = &((uint32_t *)buffer32->line[svga->displine])[offset];

		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 addr = svga->remap_func(svga, svga->ma);

			*(uint32_t *)(&edat[0]) = *(uint32_t *)(&svga->vram[addr]);
			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) {
	uint32_t changed_addr = svga->remap_func(svga, svga->ma);

	if (svga->changedvram[changed_addr >> 12] || svga->changedvram[(changed_addr >> 12) + 1] || svga->fullchange) {
		int x;
		int offset = (8 - svga->scrollcache) + 24;
		uint32_t *p = &((uint32_t *)buffer32->line[svga->displine])[offset];

		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;
			uint32_t addr = svga->remap_func(svga, svga->ma);

			*(uint32_t *)(&edat[0]) = *(uint32_t *)(&svga->vram[addr]);
			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++ = svga->pallook[svga->egapal[(dat >> 4) & svga->plane_mask]];
			*p++ = 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++ = svga->pallook[svga->egapal[(dat >> 4) & svga->plane_mask]];
			*p++ = 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++ = svga->pallook[svga->egapal[(dat >> 4) & svga->plane_mask]];
			*p++ = 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++ = svga->pallook[svga->egapal[(dat >> 4) & svga->plane_mask]];
			*p++ = svga->pallook[svga->egapal[dat & svga->plane_mask]];
		}
	}
}

void svga_render_8bpp_lowres(svga_t *svga) {
	uint32_t changed_addr = svga->remap_func(svga, svga->ma);

	if (svga->changedvram[changed_addr >> 12] || svga->changedvram[(changed_addr >> 12) + 1] || svga->fullchange) {
		int x;
		int offset = (8 - (svga->scrollcache & 6)) + 24;
		uint32_t *p = &((uint32_t *)buffer32->line[svga->displine])[offset];

		if (svga->firstline_draw == 2000)
			svga->firstline_draw = svga->displine;
		svga->lastline_draw = svga->displine;

		if (!svga->remap_required) {
			for (x = 0; x <= svga->hdisp; x += 8) {
				uint32_t 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;
			}
		} else {
			for (x = 0; x <= svga->hdisp; x += 8) {
				uint32_t addr = svga->remap_func(svga, svga->ma);
				uint32_t dat = *(uint32_t *)(&svga->vram[addr & 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) {
	uint32_t changed_addr = svga->remap_func(svga, svga->ma);

	if (svga->changedvram[changed_addr >> 12] || svga->changedvram[(changed_addr >> 12) + 1] || svga->fullchange) {
		int x;
		int offset = (8 - ((svga->scrollcache & 6) >> 1)) + 24;
		uint32_t *p = &((uint32_t *)buffer32->line[svga->displine])[offset];

		if (svga->firstline_draw == 2000)
			svga->firstline_draw = svga->displine;
		svga->lastline_draw = svga->displine;

		if (!svga->remap_required) {
			for (x = 0; x <= svga->hdisp; x += 8) {
				uint32_t dat = *(uint32_t *)(&svga->vram[svga->ma & svga->vram_display_mask]);
				*p++ = svga->pallook[dat & 0xff];
				*p++ = svga->pallook[(dat >> 8) & 0xff];
				*p++ = svga->pallook[(dat >> 16) & 0xff];
				*p++ = svga->pallook[(dat >> 24) & 0xff];

				dat = *(uint32_t *)(&svga->vram[(svga->ma + 4) & svga->vram_display_mask]);
				*p++ = svga->pallook[dat & 0xff];
				*p++ = svga->pallook[(dat >> 8) & 0xff];
				*p++ = svga->pallook[(dat >> 16) & 0xff];
				*p++ = svga->pallook[(dat >> 24) & 0xff];

				svga->ma += 8;
			}
		} else {
			for (x = 0; x <= svga->hdisp; x += 4) {
				uint32_t addr = svga->remap_func(svga, svga->ma);
				uint32_t dat = *(uint32_t *)(&svga->vram[addr & svga->vram_display_mask]);

				svga->ma += 4;

				*p++ = svga->pallook[dat & 0xff];
				*p++ = svga->pallook[(dat >> 8) & 0xff];
				*p++ = svga->pallook[(dat >> 16) & 0xff];
				*p++ = svga->pallook[(dat >> 24) & 0xff];
			}
		}

		svga->ma &= svga->vram_display_mask;
	}
}

void svga_render_15bpp_lowres(svga_t *svga) {
	uint32_t changed_addr = svga->remap_func(svga, svga->ma);

	if (svga->changedvram[changed_addr >> 12] || svga->changedvram[(changed_addr >> 12) + 1] || svga->fullchange) {
		int x;
		int offset = (8 - (svga->scrollcache & 6)) + 24;
		uint32_t *p = &((uint32_t *)buffer32->line[svga->displine])[offset];

		if (svga->firstline_draw == 2000)
			svga->firstline_draw = svga->displine;
		svga->lastline_draw = svga->displine;

		if (!svga->remap_required) {
			for (x = 0; x <= svga->hdisp; x += 4) {
				uint32_t dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 1)) & svga->vram_display_mask]);

				*p++ = video_15to32[dat & 0xffff];
				*p++ = video_15to32[dat >> 16];

				dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 1) + 4) & svga->vram_display_mask]);

				*p++ = video_15to32[dat & 0xffff];
				*p++ = video_15to32[dat >> 16];
			}
			svga->ma += x << 1;
		} else {
			for (x = 0; x <= svga->hdisp; x += 2) {
				uint32_t addr = svga->remap_func(svga, svga->ma);
				uint32_t dat = *(uint32_t *)(&svga->vram[addr & svga->vram_display_mask]);

				*p++ = video_15to32[dat & 0xffff];
				*p++ = video_15to32[dat >> 16];

				svga->ma += 4;
			}
		}
		svga->ma &= svga->vram_display_mask;
	}
}

void svga_render_15bpp_highres(svga_t *svga) {
	uint32_t changed_addr = svga->remap_func(svga, svga->ma);

	if (svga->changedvram[changed_addr >> 12] || svga->changedvram[(changed_addr >> 12) + 1] || svga->fullchange) {
		int x;
		int offset = (8 - ((svga->scrollcache & 6) >> 1)) + 24;
		uint32_t *p = &((uint32_t *)buffer32->line[svga->displine])[offset];

		if (svga->firstline_draw == 2000)
			svga->firstline_draw = svga->displine;
		svga->lastline_draw = svga->displine;

		if (!svga->remap_required) {
			for (x = 0; x <= svga->hdisp; x += 8) {
				uint32_t dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 1)) & svga->vram_display_mask]);
				*p++ = video_15to32[dat & 0xffff];
				*p++ = video_15to32[dat >> 16];

				dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 1) + 4) & svga->vram_display_mask]);
				*p++ = video_15to32[dat & 0xffff];
				*p++ = video_15to32[dat >> 16];

				dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 1) + 8) & svga->vram_display_mask]);
				*p++ = video_15to32[dat & 0xffff];
				*p++ = video_15to32[dat >> 16];

				dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 1) + 12) & svga->vram_display_mask]);
				*p++ = video_15to32[dat & 0xffff];
				*p++ = video_15to32[dat >> 16];
			}

			svga->ma += x << 1;
		} else {
			for (x = 0; x <= svga->hdisp; x += 2) {
				uint32_t addr = svga->remap_func(svga, svga->ma);
				uint32_t dat = *(uint32_t *)(&svga->vram[addr & svga->vram_display_mask]);

				*p++ = video_15to32[dat & 0xffff];
				*p++ = video_15to32[dat >> 16];

				svga->ma += 4;
			}
		}
		svga->ma &= svga->vram_display_mask;
	}
}

void svga_render_16bpp_lowres(svga_t *svga) {
	uint32_t changed_addr = svga->remap_func(svga, svga->ma);

	if (svga->changedvram[changed_addr >> 12] || svga->changedvram[(changed_addr >> 12) + 1] || svga->fullchange) {
		int x;
		int offset = (8 - (svga->scrollcache & 6)) + 24;
		uint32_t *p = &((uint32_t *)buffer32->line[svga->displine])[offset];

		if (svga->firstline_draw == 2000)
			svga->firstline_draw = svga->displine;
		svga->lastline_draw = svga->displine;

		if (!svga->remap_required) {
			for (x = 0; x <= svga->hdisp; x += 4) {
				uint32_t dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 1)) & svga->vram_display_mask]);

				*p++ = video_16to32[dat & 0xffff];
				*p++ = video_16to32[dat >> 16];

				dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 1) + 4) & svga->vram_display_mask]);

				*p++ = video_16to32[dat & 0xffff];
				*p++ = video_16to32[dat >> 16];
			}
			svga->ma += x << 1;
		} else {
			for (x = 0; x <= svga->hdisp; x += 2) {
				uint32_t addr = svga->remap_func(svga, svga->ma);
				uint32_t dat = *(uint32_t *)(&svga->vram[addr & svga->vram_display_mask]);

				*p++ = video_16to32[dat & 0xffff];
				*p++ = video_16to32[dat >> 16];

				svga->ma += 4;
			}
		}
		svga->ma += x << 1;
		svga->ma &= svga->vram_display_mask;
	}
}

void svga_render_16bpp_highres(svga_t *svga) {
	uint32_t changed_addr = svga->remap_func(svga, svga->ma);

	if (svga->changedvram[changed_addr >> 12] || svga->changedvram[(changed_addr >> 12) + 1] || svga->fullchange) {
		int x;
		int offset = (8 - ((svga->scrollcache & 6) >> 1)) + 24;
		uint32_t *p = &((uint32_t *)buffer32->line[svga->displine])[offset];

		if (svga->firstline_draw == 2000)
			svga->firstline_draw = svga->displine;
		svga->lastline_draw = svga->displine;

		if (!svga->remap_required) {
			for (x = 0; x <= svga->hdisp; x += 8) {
				uint32_t dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 1)) & svga->vram_display_mask]);
				*p++ = video_16to32[dat & 0xffff];
				*p++ = video_16to32[dat >> 16];

				dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 1) + 4) & svga->vram_display_mask]);
				*p++ = video_16to32[dat & 0xffff];
				*p++ = video_16to32[dat >> 16];

				dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 1) + 8) & svga->vram_display_mask]);
				*p++ = video_16to32[dat & 0xffff];
				*p++ = video_16to32[dat >> 16];

				dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 1) + 12) & svga->vram_display_mask]);
				*p++ = video_16to32[dat & 0xffff];
				*p++ = video_16to32[dat >> 16];
			}

			svga->ma += x << 1;
		} else {
			for (x = 0; x <= svga->hdisp; x += 2) {
				uint32_t addr = svga->remap_func(svga, svga->ma);
				uint32_t dat = *(uint32_t *)(&svga->vram[addr & svga->vram_display_mask]);

				*p++ = video_16to32[dat & 0xffff];
				*p++ = video_16to32[dat >> 16];

				svga->ma += 4;
			}
		}
		svga->ma &= svga->vram_display_mask;
	}
}

void svga_render_24bpp_lowres(svga_t *svga) {
	uint32_t changed_addr = svga->remap_func(svga, svga->ma);

	if (svga->changedvram[changed_addr >> 12] || svga->changedvram[(changed_addr >> 12) + 1] || svga->fullchange) {
		int x;
		int offset = (8 - (svga->scrollcache & 6)) + 24;
		uint32_t *p = &((uint32_t *)buffer32->line[svga->displine])[offset];

		if (svga->firstline_draw == 2000)
			svga->firstline_draw = svga->displine;
		svga->lastline_draw = svga->displine;

		if (!svga->remap_required) {
			for (x = 0; x <= svga->hdisp; x++) {
				uint32_t dat0 = *(uint32_t *)(&svga->vram[svga->ma & svga->vram_display_mask]);
				uint32_t dat1 = *(uint32_t *)(&svga->vram[(svga->ma + 4) & svga->vram_display_mask]);
				uint32_t dat2 = *(uint32_t *)(&svga->vram[(svga->ma + 8) & svga->vram_display_mask]);

				p[0] = p[1] = dat0 & 0xffffff;
				p[2] = p[3] = (dat0 >> 24) | ((dat1 & 0xffff) << 8);
				p[4] = p[5] = (dat1 >> 16) | ((dat2 & 0xff) << 16);
				p[6] = p[7] = dat2 >> 8;

				svga->ma += 12;
			}
		} else {
			for (x = 0; x <= svga->hdisp; x += 4) {
				uint32_t dat0, dat1, dat2;
				uint32_t addr;

				addr = svga->remap_func(svga, svga->ma);
				dat0 = *(uint32_t *)(&svga->vram[addr & svga->vram_display_mask]);
				addr = svga->remap_func(svga, svga->ma + 4);
				dat1 = *(uint32_t *)(&svga->vram[addr & svga->vram_display_mask]);
				addr = svga->remap_func(svga, svga->ma + 8);
				dat2 = *(uint32_t *)(&svga->vram[addr & svga->vram_display_mask]);

				p[0] = p[1] = dat0 & 0xffffff;
				p[2] = p[3] = (dat0 >> 24) | ((dat1 & 0xffff) << 8);
				p[4] = p[5] = (dat1 >> 16) | ((dat2 & 0xff) << 16);
				p[6] = p[7] = dat2 >> 8;

				svga->ma += 12;
			}
		}
	}
}

void svga_render_24bpp_highres(svga_t *svga) {
	uint32_t changed_addr = svga->remap_func(svga, svga->ma);

	if (svga->changedvram[changed_addr >> 12] || svga->changedvram[(changed_addr >> 12) + 1] || svga->fullchange) {
		int x;
		int offset = (8 - ((svga->scrollcache & 6) >> 1)) + 24;
		uint32_t *p = &((uint32_t *)buffer32->line[svga->displine])[offset];

		if (svga->firstline_draw == 2000)
			svga->firstline_draw = svga->displine;
		svga->lastline_draw = svga->displine;

		if (!svga->remap_required) {
			for (x = 0; x <= svga->hdisp; x += 4) {
				uint32_t dat0 = *(uint32_t *)(&svga->vram[svga->ma & svga->vram_display_mask]);
				uint32_t dat1 = *(uint32_t *)(&svga->vram[(svga->ma + 4) & svga->vram_display_mask]);
				uint32_t dat2 = *(uint32_t *)(&svga->vram[(svga->ma + 8) & svga->vram_display_mask]);

				*p++ = dat0 & 0xffffff;
				*p++ = (dat0 >> 24) | ((dat1 & 0xffff) << 8);
				*p++ = (dat1 >> 16) | ((dat2 & 0xff) << 16);
				*p++ = dat2 >> 8;

				svga->ma += 12;
			}
		} else {
			for (x = 0; x <= svga->hdisp; x += 4) {
				uint32_t dat0, dat1, dat2;
				uint32_t addr;

				addr = svga->remap_func(svga, svga->ma);
				dat0 = *(uint32_t *)(&svga->vram[addr & svga->vram_display_mask]);
				addr = svga->remap_func(svga, svga->ma + 4);
				dat1 = *(uint32_t *)(&svga->vram[addr & svga->vram_display_mask]);
				addr = svga->remap_func(svga, svga->ma + 8);
				dat2 = *(uint32_t *)(&svga->vram[addr & svga->vram_display_mask]);

				*p++ = dat0 & 0xffffff;
				*p++ = (dat0 >> 24) | ((dat1 & 0xffff) << 8);
				*p++ = (dat1 >> 16) | ((dat2 & 0xff) << 16);
				*p++ = dat2 >> 8;

				svga->ma += 12;
			}
		}
		svga->ma &= svga->vram_display_mask;
	}
}

void svga_render_32bpp_lowres(svga_t *svga) {
	uint32_t changed_addr = svga->remap_func(svga, svga->ma);

	if (svga->changedvram[changed_addr >> 12] || svga->changedvram[(changed_addr >> 12) + 1] || svga->fullchange) {
		int x;
		int offset = (8 - (svga->scrollcache & 6)) + 24;
		uint32_t *p = &((uint32_t *)buffer32->line[svga->displine])[offset];

		if (svga->firstline_draw == 2000)
			svga->firstline_draw = svga->displine;
		svga->lastline_draw = svga->displine;

		if (!svga->remap_required) {
			for (x = 0; x <= svga->hdisp; x++) {
				uint32_t dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 2)) & svga->vram_display_mask]);
				*p++ = dat & 0xffffff;
				*p++ = dat & 0xffffff;
			}
			svga->ma += x * 4;
		} else {
			for (x = 0; x <= svga->hdisp; x++) {
				uint32_t addr = svga->remap_func(svga, svga->ma);
				uint32_t dat = *(uint32_t *)(&svga->vram[addr]);
				*p++ = dat & 0xffffff;
				*p++ = dat & 0xffffff;
				svga->ma += 4;
			}
		}
		svga->ma &= svga->vram_display_mask;
	}
}

/*72%
  91%*/
void svga_render_32bpp_highres(svga_t *svga) {
	uint32_t changed_addr = svga->remap_func(svga, svga->ma);

	if (svga->changedvram[changed_addr >> 12] || svga->changedvram[(changed_addr >> 12) + 1] || svga->fullchange) {
		int x;
		int offset = (8 - ((svga->scrollcache & 6) >> 1)) + 24;
		uint32_t *p = &((uint32_t *)buffer32->line[svga->displine])[offset];

		if (svga->firstline_draw == 2000)
			svga->firstline_draw = svga->displine;
		svga->lastline_draw = svga->displine;

		if (!svga->remap_required) {
			for (x = 0; x <= svga->hdisp; x++) {
				uint32_t dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 2)) & svga->vram_display_mask]);
				*p++ = dat & 0xffffff;
			}
			svga->ma += x * 4;
		} else {
			for (x = 0; x <= svga->hdisp; x++) {
				uint32_t addr = svga->remap_func(svga, svga->ma);
				uint32_t dat = *(uint32_t *)(&svga->vram[addr & svga->vram_display_mask]);
				*p++ = dat & 0xffffff;
				svga->ma += 4;
			}
		}

		svga->ma &= svga->vram_display_mask;
	}
}

void svga_render_ABGR8888_highres(svga_t *svga) {
	uint32_t changed_addr = svga->remap_func(svga, svga->ma);

	if (svga->changedvram[changed_addr >> 12] || svga->changedvram[(changed_addr >> 12) + 1] || svga->fullchange) {
		int x;
		int offset = (8 - ((svga->scrollcache & 6) >> 1)) + 24;
		uint32_t *p = &((uint32_t *)buffer32->line[svga->displine])[offset];

		if (svga->firstline_draw == 2000)
			svga->firstline_draw = svga->displine;
		svga->lastline_draw = svga->displine;

		if (!svga->remap_required) {
			for (x = 0; x <= svga->hdisp; x++) {
				uint32_t dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 2)) & svga->vram_display_mask]);
				*p++ = ((dat & 0xff0000) >> 16) | (dat & 0x00ff00) | ((dat & 0x0000ff) << 16);
			}
			svga->ma += x * 4;
		} else {
			for (x = 0; x <= svga->hdisp; x++) {
				uint32_t addr = svga->remap_func(svga, svga->ma);
				uint32_t dat = *(uint32_t *)(&svga->vram[addr & svga->vram_display_mask]);
				*p++ = ((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) {
	uint32_t changed_addr = svga->remap_func(svga, svga->ma);

	if (svga->changedvram[changed_addr >> 12] || svga->changedvram[(changed_addr >> 12) + 1] || svga->fullchange) {
		int x;
		int offset = (8 - ((svga->scrollcache & 6) >> 1)) + 24;
		uint32_t *p = &((uint32_t *)buffer32->line[svga->displine])[offset];

		if (svga->firstline_draw == 2000)
			svga->firstline_draw = svga->displine;
		svga->lastline_draw = svga->displine;

		if (!svga->remap_required) {
			for (x = 0; x <= svga->hdisp; x++) {
				uint32_t dat = *(uint32_t *)(&svga->vram[(svga->ma + (x << 2)) & svga->vram_display_mask]);
				*p++ = dat >> 8;
			}
			svga->ma += x * 4;
		} else {
			for (x = 0; x <= svga->hdisp; x++) {
				uint32_t addr = svga->remap_func(svga, svga->ma);
				uint32_t dat = *(uint32_t *)(&svga->vram[addr & svga->vram_display_mask]);
				*p++ = dat >> 8;
				svga->ma += 4;
			}
		}

		svga->ma &= svga->vram_display_mask;
	}
}
