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mirror of https://github.com/CTCaer/hekate.git synced 2024-12-27 21:19:20 +00:00
hekate/nyx/nyx_gui/gfx/gfx.c
CTCaer 833f060c7b nyx: utilize VIC for hw rotation
It completely removes the waterfall-like slow rendering on T210B01 and speeds up even more rendering on T210.
2022-10-11 06:51:33 +03:00

592 lines
16 KiB
C

/*
* Copyright (c) 2018 naehrwert
* Copyright (c) 2018-2022 CTCaer
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdarg.h>
#include <string.h>
#include "gfx.h"
// Global gfx console and context.
gfx_ctxt_t gfx_ctxt;
gfx_con_t gfx_con;
static bool gfx_con_init_done = false;
static const u8 _gfx_font[] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Char 032 ( )
0x00, 0x30, 0x30, 0x18, 0x18, 0x00, 0x0C, 0x00, // Char 033 (!)
0x00, 0x22, 0x22, 0x22, 0x00, 0x00, 0x00, 0x00, // Char 034 (")
0x00, 0x66, 0x66, 0xFF, 0x66, 0xFF, 0x66, 0x66, // Char 035 (#)
0x00, 0x18, 0x7C, 0x06, 0x3C, 0x60, 0x3E, 0x18, // Char 036 ($)
0x00, 0x46, 0x66, 0x30, 0x18, 0x0C, 0x66, 0x62, // Char 037 (%)
0x00, 0x3C, 0x66, 0x3C, 0x1C, 0xE6, 0x66, 0xFC, // Char 038 (&)
0x00, 0x18, 0x0C, 0x06, 0x00, 0x00, 0x00, 0x00, // Char 039 (')
0x00, 0x30, 0x18, 0x0C, 0x0C, 0x18, 0x30, 0x00, // Char 040 (()
0x00, 0x0C, 0x18, 0x30, 0x30, 0x18, 0x0C, 0x00, // Char 041 ())
0x00, 0x66, 0x3C, 0xFF, 0x3C, 0x66, 0x00, 0x00, // Char 042 (*)
0x00, 0x18, 0x18, 0x7E, 0x18, 0x18, 0x00, 0x00, // Char 043 (+)
0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x0C, 0x00, // Char 044 (,)
0x00, 0x00, 0x00, 0x3E, 0x00, 0x00, 0x00, 0x00, // Char 045 (-)
0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x00, // Char 046 (.)
0x00, 0x40, 0x60, 0x30, 0x18, 0x0C, 0x06, 0x00, // Char 047 (/)
0x00, 0x3C, 0x66, 0x76, 0x6E, 0x66, 0x3C, 0x00, // Char 048 (0)
0x00, 0x18, 0x1C, 0x18, 0x18, 0x18, 0x7E, 0x00, // Char 049 (1)
0x00, 0x3C, 0x62, 0x30, 0x0C, 0x06, 0x7E, 0x00, // Char 050 (2)
0x00, 0x3C, 0x62, 0x38, 0x60, 0x66, 0x3C, 0x00, // Char 051 (3)
0x00, 0x6C, 0x6C, 0x66, 0xFE, 0x60, 0x60, 0x00, // Char 052 (4)
0x00, 0x7E, 0x06, 0x7E, 0x60, 0x66, 0x3C, 0x00, // Char 053 (5)
0x00, 0x3C, 0x06, 0x3E, 0x66, 0x66, 0x3C, 0x00, // Char 054 (6)
0x00, 0x7E, 0x30, 0x30, 0x18, 0x18, 0x18, 0x00, // Char 055 (7)
0x00, 0x3C, 0x66, 0x3C, 0x66, 0x66, 0x3C, 0x00, // Char 056 (8)
0x00, 0x3C, 0x66, 0x7C, 0x60, 0x66, 0x3C, 0x00, // Char 057 (9)
0x00, 0x00, 0x18, 0x00, 0x00, 0x00, 0x18, 0x00, // Char 058 (:)
0x00, 0x00, 0x18, 0x00, 0x18, 0x18, 0x0C, 0x00, // Char 059 (;)
0x00, 0x70, 0x1C, 0x06, 0x06, 0x1C, 0x70, 0x00, // Char 060 (<)
0x00, 0x00, 0x3E, 0x00, 0x3E, 0x00, 0x00, 0x00, // Char 061 (=)
0x00, 0x0E, 0x38, 0x60, 0x60, 0x38, 0x0E, 0x00, // Char 062 (>)
0x00, 0x3C, 0x66, 0x30, 0x18, 0x00, 0x18, 0x00, // Char 063 (?)
0x00, 0x3C, 0x66, 0x76, 0x76, 0x06, 0x46, 0x3C, // Char 064 (@)
0x00, 0x3C, 0x66, 0x7E, 0x66, 0x66, 0x66, 0x00, // Char 065 (A)
0x00, 0x3E, 0x66, 0x3E, 0x66, 0x66, 0x3E, 0x00, // Char 066 (B)
0x00, 0x3C, 0x66, 0x06, 0x06, 0x66, 0x3C, 0x00, // Char 067 (C)
0x00, 0x1E, 0x36, 0x66, 0x66, 0x36, 0x1E, 0x00, // Char 068 (D)
0x00, 0x7E, 0x06, 0x1E, 0x06, 0x06, 0x7E, 0x00, // Char 069 (E)
0x00, 0x3E, 0x06, 0x1E, 0x06, 0x06, 0x06, 0x00, // Char 070 (F)
0x00, 0x3C, 0x66, 0x06, 0x76, 0x66, 0x3C, 0x00, // Char 071 (G)
0x00, 0x66, 0x66, 0x7E, 0x66, 0x66, 0x66, 0x00, // Char 072 (H)
0x00, 0x3C, 0x18, 0x18, 0x18, 0x18, 0x3C, 0x00, // Char 073 (I)
0x00, 0x78, 0x30, 0x30, 0x30, 0x36, 0x1C, 0x00, // Char 074 (J)
0x00, 0x66, 0x36, 0x1E, 0x1E, 0x36, 0x66, 0x00, // Char 075 (K)
0x00, 0x06, 0x06, 0x06, 0x06, 0x06, 0x7E, 0x00, // Char 076 (L)
0x00, 0x46, 0x6E, 0x7E, 0x56, 0x46, 0x46, 0x00, // Char 077 (M)
0x00, 0x66, 0x6E, 0x7E, 0x76, 0x66, 0x66, 0x00, // Char 078 (N)
0x00, 0x3C, 0x66, 0x66, 0x66, 0x66, 0x3C, 0x00, // Char 079 (O)
0x00, 0x3E, 0x66, 0x3E, 0x06, 0x06, 0x06, 0x00, // Char 080 (P)
0x00, 0x3C, 0x66, 0x66, 0x66, 0x3C, 0x70, 0x00, // Char 081 (Q)
0x00, 0x3E, 0x66, 0x3E, 0x1E, 0x36, 0x66, 0x00, // Char 082 (R)
0x00, 0x3C, 0x66, 0x0C, 0x30, 0x66, 0x3C, 0x00, // Char 083 (S)
0x00, 0x7E, 0x18, 0x18, 0x18, 0x18, 0x18, 0x00, // Char 084 (T)
0x00, 0x66, 0x66, 0x66, 0x66, 0x66, 0x3C, 0x00, // Char 085 (U)
0x00, 0x66, 0x66, 0x66, 0x66, 0x3C, 0x18, 0x00, // Char 086 (V)
0x00, 0x46, 0x46, 0x56, 0x7E, 0x6E, 0x46, 0x00, // Char 087 (W)
0x00, 0x66, 0x3C, 0x18, 0x3C, 0x66, 0x66, 0x00, // Char 088 (X)
0x00, 0x66, 0x66, 0x3C, 0x18, 0x18, 0x18, 0x00, // Char 089 (Y)
0x00, 0x7E, 0x30, 0x18, 0x0C, 0x06, 0x7E, 0x00, // Char 090 (Z)
0x00, 0x3C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x3C, // Char 091 ([)
0x00, 0x06, 0x0C, 0x18, 0x30, 0x60, 0x40, 0x00, // Char 092 (\)
0x00, 0x3C, 0x30, 0x30, 0x30, 0x30, 0x30, 0x3C, // Char 093 (])
0x00, 0x18, 0x3C, 0x66, 0x00, 0x00, 0x00, 0x00, // Char 094 (^)
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, // Char 095 (_)
0x00, 0x0C, 0x18, 0x30, 0x00, 0x00, 0x00, 0x00, // Char 096 (`)
0x00, 0x00, 0x3C, 0x60, 0x7C, 0x66, 0x7C, 0x00, // Char 097 (a)
0x00, 0x06, 0x06, 0x3E, 0x66, 0x66, 0x3E, 0x00, // Char 098 (b)
0x00, 0x00, 0x3C, 0x06, 0x06, 0x06, 0x3C, 0x00, // Char 099 (c)
0x00, 0x60, 0x60, 0x7C, 0x66, 0x66, 0x7C, 0x00, // Char 100 (d)
0x00, 0x00, 0x3C, 0x66, 0x7E, 0x06, 0x3C, 0x00, // Char 101 (e)
0x00, 0x38, 0x0C, 0x3E, 0x0C, 0x0C, 0x0C, 0x00, // Char 102 (f)
0x00, 0x00, 0x7C, 0x66, 0x7C, 0x40, 0x3C, 0x00, // Char 103 (g)
0x00, 0x06, 0x06, 0x3E, 0x66, 0x66, 0x66, 0x00, // Char 104 (h)
0x00, 0x18, 0x00, 0x1C, 0x18, 0x18, 0x3C, 0x00, // Char 105 (i)
0x00, 0x30, 0x00, 0x30, 0x30, 0x30, 0x1E, 0x00, // Char 106 (j)
0x00, 0x06, 0x06, 0x36, 0x1E, 0x36, 0x66, 0x00, // Char 107 (k)
0x00, 0x1C, 0x18, 0x18, 0x18, 0x18, 0x3C, 0x00, // Char 108 (l)
0x00, 0x00, 0x66, 0xFE, 0xFE, 0xD6, 0xC6, 0x00, // Char 109 (m)
0x00, 0x00, 0x3E, 0x66, 0x66, 0x66, 0x66, 0x00, // Char 110 (n)
0x00, 0x00, 0x3C, 0x66, 0x66, 0x66, 0x3C, 0x00, // Char 111 (o)
0x00, 0x00, 0x3E, 0x66, 0x66, 0x3E, 0x06, 0x00, // Char 112 (p)
0x00, 0x00, 0x7C, 0x66, 0x66, 0x7C, 0x60, 0x00, // Char 113 (q)
0x00, 0x00, 0x3E, 0x66, 0x06, 0x06, 0x06, 0x00, // Char 114 (r)
0x00, 0x00, 0x7C, 0x06, 0x3C, 0x60, 0x3E, 0x00, // Char 115 (s)
0x00, 0x18, 0x7E, 0x18, 0x18, 0x18, 0x70, 0x00, // Char 116 (t)
0x00, 0x00, 0x66, 0x66, 0x66, 0x66, 0x7C, 0x00, // Char 117 (u)
0x00, 0x00, 0x66, 0x66, 0x66, 0x3C, 0x18, 0x00, // Char 118 (v)
0x00, 0x00, 0xC6, 0xD6, 0xFE, 0x7C, 0x6C, 0x00, // Char 119 (w)
0x00, 0x00, 0x66, 0x3C, 0x18, 0x3C, 0x66, 0x00, // Char 120 (x)
0x00, 0x00, 0x66, 0x66, 0x7C, 0x60, 0x3C, 0x00, // Char 121 (y)
0x00, 0x00, 0x7E, 0x30, 0x18, 0x0C, 0x7E, 0x00, // Char 122 (z)
0x00, 0x18, 0x08, 0x08, 0x04, 0x08, 0x08, 0x18, // Char 123 ({)
0x00, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, // Char 124 (|)
0x00, 0x0C, 0x08, 0x08, 0x10, 0x08, 0x08, 0x0C, // Char 125 (})
0x00, 0x00, 0x00, 0x4C, 0x32, 0x00, 0x00, 0x00 // Char 126 (~)
};
void gfx_clear_grey(u8 color)
{
memset(gfx_ctxt.fb, color, gfx_ctxt.width * gfx_ctxt.height * 4);
}
void gfx_clear_color(u32 color)
{
for (u32 i = 0; i < gfx_ctxt.width * gfx_ctxt.height; i++)
gfx_ctxt.fb[i] = color;
}
void gfx_init_ctxt(u32 *fb, u32 width, u32 height, u32 stride)
{
gfx_ctxt.fb = fb;
gfx_ctxt.width = width;
gfx_ctxt.height = height;
gfx_ctxt.stride = stride;
gfx_clear_grey(0);
}
void gfx_con_init()
{
gfx_con.gfx_ctxt = &gfx_ctxt;
gfx_con.fntsz = 16;
gfx_con.x = 0;
gfx_con.y = 0;
gfx_con.savedx = 0;
gfx_con.savedy = 0;
gfx_con.fgcol = TXT_CLR_DEFAULT;
gfx_con.fillbg = 1;
gfx_con.bgcol = TXT_CLR_BG;
gfx_con.mute = 0;
gfx_con_init_done = true;
}
void gfx_con_setcol(u32 fgcol, int fillbg, u32 bgcol)
{
gfx_con.fgcol = fgcol;
gfx_con.fillbg = fillbg;
gfx_con.bgcol = bgcol;
}
void gfx_con_getpos(u32 *x, u32 *y)
{
*x = gfx_con.x;
*y = gfx_con.y;
}
static int gfx_column = 0;
void gfx_con_setpos(u32 x, u32 y)
{
gfx_con.x = x;
gfx_con.y = y;
if (!x)
gfx_column = 0;
}
void gfx_putc(char c)
{
// Duplicate code for performance reasons.
switch (gfx_con.fntsz)
{
case 16:
if (c >= 32 && c <= 126)
{
u8 *cbuf = (u8 *)&_gfx_font[8 * (c - 32)];
for (u32 i = 0; i < 16; i += 2)
{
u8 v = *cbuf;
for (u32 k = 0; k < 2; k++)
{
u32 fb_off = gfx_con.y + i + k + (gfx_ctxt.width - gfx_con.x) * gfx_ctxt.stride;
for (u32 j = 0; j < 16; j += 2)
{
for (u32 l = 0; l < 2; l++)
{
if (v & 1)
gfx_ctxt.fb[fb_off - (j + l) * gfx_ctxt.stride] = gfx_con.fgcol;
else if (gfx_con.fillbg)
gfx_ctxt.fb[fb_off - (j + l) * gfx_ctxt.stride] = gfx_con.bgcol;
}
v >>= 1;
}
v = *cbuf;
}
cbuf++;
}
gfx_con.x += 16;
if (gfx_con.x > gfx_ctxt.width - 16)
{
gfx_con.x = gfx_column;
gfx_con.y += 16;
if (gfx_con.y > gfx_ctxt.height - 33)
{
gfx_con.y = 0;
if (!gfx_column)
gfx_column = 640;
else
gfx_column = 0;
gfx_con.x = gfx_column;
}
}
}
else if (c == '\n')
{
gfx_con.x = gfx_column;
gfx_con.y += 16;
if (gfx_con.y > gfx_ctxt.height - 33)
{
gfx_con.y = 0;
if (!gfx_column)
gfx_column = 640;
else
gfx_column = 0;
gfx_con.x = gfx_column;
}
}
break;
case 8:
default:
if (c >= 32 && c <= 126)
{
u8 *cbuf = (u8 *)&_gfx_font[8 * (c - 32)];
for (u32 i = 0; i < 8; i++)
{
u8 v = *cbuf++;
u32 fb_off = gfx_con.y + i + (gfx_ctxt.width - gfx_con.x) * gfx_ctxt.stride;
for (u32 j = 0; j < 8; j++)
{
if (v & 1)
gfx_ctxt.fb[fb_off - (j * gfx_ctxt.stride)] = gfx_con.fgcol;
else if (gfx_con.fillbg)
gfx_ctxt.fb[fb_off - (j * gfx_ctxt.stride)] = gfx_con.bgcol;
v >>= 1;
}
}
gfx_con.x += 8;
if (gfx_con.x > gfx_ctxt.width / 2 + gfx_column - 8)
{
gfx_con.x = gfx_column;
gfx_con.y += 8;
if (gfx_con.y > gfx_ctxt.height - 33)
{
gfx_con.y = 0;
if (!gfx_column)
gfx_column = 640;
else
gfx_column = 0;
gfx_con.x = gfx_column;
}
}
}
else if (c == '\n')
{
gfx_con.x = gfx_column;
gfx_con.y += 8;
if (gfx_con.y > gfx_ctxt.height - 33)
{
gfx_con.y = 0;
if (!gfx_column)
gfx_column = 640;
else
gfx_column = 0;
gfx_con.x = gfx_column;
}
}
break;
}
}
void gfx_puts(const char *s)
{
if (!s || !gfx_con_init_done || gfx_con.mute)
return;
for (; *s; s++)
gfx_putc(*s);
}
static void _gfx_putn(u32 v, int base, char fill, int fcnt)
{
static const char digits[] = "0123456789ABCDEF";
char *p;
char buf[65];
int c = fcnt;
bool negative = false;
if (base != 10 && base != 16)
return;
// Account for negative numbers.
if (base == 10 && v & 0x80000000)
{
negative = true;
v = (int)v * -1;
c--;
}
p = buf + 64;
*p = 0;
do
{
c--;
*--p = digits[v % base];
v /= base;
} while (v);
if (negative)
*--p = '-';
if (fill != 0)
{
while (c > 0 && p > buf)
{
*--p = fill;
c--;
}
}
gfx_puts(p);
}
void gfx_printf(const char *fmt, ...)
{
if (!gfx_con_init_done || gfx_con.mute)
return;
va_list ap;
int fill, fcnt;
va_start(ap, fmt);
while (*fmt)
{
if (*fmt == '%')
{
fmt++;
fill = 0;
fcnt = 0;
if ((*fmt >= '0' && *fmt <= '9') || *fmt == ' ')
{
fcnt = *fmt;
fmt++;
if (*fmt >= '0' && *fmt <= '9')
{
fill = fcnt;
fcnt = *fmt - '0';
fmt++;
}
else
{
fill = ' ';
fcnt -= '0';
}
}
switch(*fmt)
{
case 'c':
gfx_putc(va_arg(ap, u32));
break;
case 's':
gfx_puts(va_arg(ap, char *));
break;
case 'd':
_gfx_putn(va_arg(ap, u32), 10, fill, fcnt);
break;
case 'p':
case 'P':
case 'x':
case 'X':
_gfx_putn(va_arg(ap, u32), 16, fill, fcnt);
break;
case 'k':
gfx_con.fgcol = va_arg(ap, u32);
break;
case 'K':
gfx_con.bgcol = va_arg(ap, u32);
gfx_con.fillbg = 1;
break;
case '%':
gfx_putc('%');
break;
case '\0':
goto out;
default:
gfx_putc('%');
gfx_putc(*fmt);
break;
}
}
else
gfx_putc(*fmt);
fmt++;
}
out:
va_end(ap);
}
static void _gfx_cputs(u32 color, const char *s)
{
gfx_con.fgcol = color;
gfx_puts(s);
gfx_putc('\n');
gfx_con.fgcol = TXT_CLR_DEFAULT;
}
void gfx_wputs(const char *s) { _gfx_cputs(TXT_CLR_WARNING, s); }
void gfx_eputs(const char *s) { _gfx_cputs(TXT_CLR_ERROR, s); }
void gfx_hexdump(u32 base, const void *buf, u32 len)
{
if (!gfx_con_init_done || gfx_con.mute)
return;
u8 *buff = (u8 *)buf;
u8 prevFontSize = gfx_con.fntsz;
gfx_con.fntsz = 8;
for(u32 i = 0; i < len; i++)
{
if(i % 0x10 == 0)
{
if(i != 0)
{
gfx_puts("| ");
for(u32 j = 0; j < 0x10; j++)
{
u8 c = buff[i - 0x10 + j];
if(c >= 32 && c <= 126)
gfx_putc(c);
else
gfx_putc('.');
}
gfx_putc('\n');
}
gfx_printf("%08x: ", base + i);
}
gfx_printf("%02x ", buff[i]);
if (i == len - 1)
{
int ln = len % 0x10 != 0;
u32 k = 0x10 - 1;
if (ln)
{
k = (len & 0xF) - 1;
for (u32 j = 0; j < 0x10 - k; j++)
gfx_puts(" ");
}
gfx_puts("| ");
for(u32 j = 0; j < (ln ? k : k + 1); j++)
{
u8 c = buff[i - k + j];
if(c >= 32 && c <= 126)
gfx_putc(c);
else
gfx_putc('.');
}
gfx_putc('\n');
}
}
gfx_putc('\n');
gfx_con.fntsz = prevFontSize;
}
void gfx_set_pixel(u32 x, u32 y, u32 color)
{
gfx_ctxt.fb[y + (gfx_ctxt.width - x) * gfx_ctxt.stride] = color;
}
void gfx_set_rect_pitch(u32 *fb, const u32 *buf, u32 stride, u32 pos_x, u32 pos_y, u32 pos_x2, u32 pos_y2)
{
u32 *ptr = (u32 *)buf;
u32 line_size = pos_x2 - pos_x + 1;
//ptr = gfx_debug_rect(buf, pos_x, pos_y, pos_x2, pos_y2);
for (u32 y = pos_y; y <= pos_y2; y++)
{
memcpy(&fb[pos_x + y * stride], ptr, line_size * sizeof(u32));
ptr += line_size;
}
}
void gfx_set_rect_land_pitch(u32 *fb, const u32 *buf, u32 stride, u32 pos_x, u32 pos_y, u32 pos_x2, u32 pos_y2)
{
u32 *ptr = (u32 *)buf;
u32 pixels_w = pos_x2 - pos_x + 1;
if (!(pixels_w % 8))
{
for (u32 y = pos_y; y <= pos_y2; y++)
for (u32 x = pos_x; x <= pos_x2; x += 8)
{
u32 *fbx = &fb[x * stride + y];
fbx[0] = *ptr++;
fbx[stride] = *ptr++;
fbx[stride * 2] = *ptr++;
fbx[stride * 3] = *ptr++;
fbx[stride * 4] = *ptr++;
fbx[stride * 5] = *ptr++;
fbx[stride * 6] = *ptr++;
fbx[stride * 7] = *ptr++;
}
}
else
{
for (u32 y = pos_y; y < (pos_y2 + 1); y++)
for (u32 x = pos_x; x < (pos_x2 + 1); x++)
fb[x * stride + y] = *ptr++;
}
}
void gfx_set_rect_land_block(u32 *fb, const u32 *buf, u32 pos_x, u32 pos_y, u32 pos_x2, u32 pos_y2)
{
u32 *ptr = (u32 *)buf;
u32 GOB_address = 0;
u32 addr = 0;
u32 x2 = 0;
// Optimized
u32 image_width_in_gobs = 655360; //1280
for (u32 y = pos_y; y <= pos_y2; y++)
{
for (u32 x = pos_x; x <= pos_x2; x++)
{
GOB_address = (y >> 7) * image_width_in_gobs + ((x >> 4) << 13) + (((y % 128) >> 3) << 9);
x2 = x << 2;
addr = GOB_address
+ (((x2 % 64) >> 5) << 8)
+ (((y % 8) >> 1) << 6)
+ (((x2 % 32) >> 4) << 5)
+ ((y % 2) << 4) + (x2 % 16);
*(u32 *)(fb + (addr >> 2)) = *ptr++;
}
}
// Proper
// u32 block_height = 16;
// u32 image_width_in_gobs = (512 * block_height * 1280 * 4) / 64;
// for (u32 y = pos_y; y <= pos_y2; y++)
// {
// for (int x = pos_x; x <= pos_x2; x++)
// {
// GOB_address = (y / (8 * block_height)) * image_width_in_gobs + ((x * 4 / 64) * 512 * block_height) + ((y % (8 * block_height) / 8) * 512);
// x2 = x << 2;
// addr = GOB_address
// + (((x2 % 64) >> 5) << 8)
// + (((y % 8) >> 1) << 6)
// + (((x2 % 32) >> 4) << 5)
// + ((y % 2) << 4) + (x2 % 16);
// *(u32 *)(gfx_ctxt.fb + (addr >> 2)) = *ptr++;
// }
// }
}