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Automatically generate 16to8 bit colors

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This commit is contained in:
Denis Pauk 2023-08-12 13:09:46 +03:00
parent 903272ee09
commit 43e4951f43
3 changed files with 58 additions and 9 deletions
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2
src/client/refresh/files/stb.c
View file

@ -640,7 +640,7 @@ R_FindPic(const char *name, findimage_t find_image)
Com_sprintf(pathname, sizeof(pathname), "pics/%s.pcx", name);
image = find_image(pathname, it_pic);
/* Quake 2 Re Release*/
/* Quake 2 Re-Release */
if (!image)
{
Com_sprintf(pathname, sizeof(pathname), "pics/%s.png", name);

62
src/client/refresh/soft/sw_image.c
View file

@ -691,14 +691,17 @@ R_InitImages (void)
registration_sequence = 1;
image_max = 0;
R_Printf(PRINT_ALL, "%s() Load colormap\n", __func__);
GetPCXPalette (&vid_colormap, (unsigned *)d_8to24table);
vid_alphamap = vid_colormap + 64*256;
d_16to8table = NULL;
ri.FS_LoadFile("pics/16to8.dat", (void **)&table16to8);
if ( !table16to8 )
{
ri.Sys_Error(ERR_FATAL, "%s: Couldn't load pics/16to8.dat", __func__);
// code never returns after ERR_FATAL
return;
R_Printf(PRINT_ALL, "%s: Couldn't load pics/16to8.dat", __func__);
}
d_16to8table = malloc(0x10000);
@ -708,8 +711,57 @@ R_InitImages (void)
// code never returns after ERR_FATAL
return;
}
memcpy(d_16to8table, table16to8, 0x10000);
ri.FS_FreeFile((void *)table16to8);
if (table16to8)
{
// Use predefined convert map
memcpy(d_16to8table, table16to8, 0x10000);
ri.FS_FreeFile((void *)table16to8);
}
else
{
// create new one
unsigned int r, g, b, i;
for (r = 0; r < 32; r++)
{
for (g = 0; g < 64; g++)
{
for (b = 0; b < 32; b++)
{
float diff = 1024;
for (i = 0; i < 256; i ++)
{
int r_c, g_c, b_c;
float curr_diff;
r_c = d_8to24table[i * 4 + 0] - (r << 3);
g_c = d_8to24table[i * 4 + 1] - (g << 2);
b_c = d_8to24table[i * 4 + 2] - (b << 3);
curr_diff = sqrt(
(r_c * r_c) +
(g_c * g_c) +
(b_c * b_c)
);
if (curr_diff < diff)
{
int c;
diff = curr_diff;
c = r | ( g << 5 ) | ( b << 11 );
// set color with minimal difference
d_16to8table[c & 0xFFFF] = i;
}
}
}
}
}
}
R_InitTextures ();
}

3
src/client/refresh/soft/sw_main.c
View file

@ -471,9 +471,6 @@ RE_Init(void)
r_aliasuvscale = 1.0;
GetPCXPalette (&vid_colormap, (unsigned *)d_8to24table);
vid_alphamap = vid_colormap + 64*256;
/* set our "safe" mode */
sw_state.prev_mode = 4;