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Add fontatlas and fontspread from Demolitionist development.

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Marisa the Magician 2022-08-22 17:56:31 +02:00
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2
README.md
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@ -8,6 +8,8 @@ Random single-file programs I've written in my spare time for small tasks.
* **dood:** Reads an ENDOOM lump and mirrors every word "down the middle".
* **dtexdupes:** Small tool I've used once or twice to clean up my doom projects of duplicate textures.
* **endoomview:** Renders ENDOOM lumps onto a terminal. Requires an Unicode terminal with 256-color support (not xterm, basically).
* **fontatlas:** Tool used in Demolitionist development, converts json font atlas data to plaintext for easier ZScript parsing.
* **fontspread:** Tool used in Demolitionist development, converts back and forth between "compressed" font atlas texture and a linear spread of all glyphs. Useful for adding gradient effects and others, since all glyphs are properly centered.
* **fmod\_playbank (formerly fuck\_fmod):** Tool for playback of .fsb files.
* **fuzrip:** Tool for awkwardly extracting audio from Creation Engine .fuz voice files.
* **fuzz:** A fancy blocky noise filter using proto-AliceGL designs.

8
cropng.c
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@ -278,6 +278,14 @@ void processpic( const char *fname )
cropy = 0;
croph = h;
}
if ( (cropx >= w) || (cropy >= h) || (cropw <= 0) || (croph <= 0) )
{
printf(" Image crops to zero size, skipping.\n");
free(idata);
if ( plte ) free(plte);
if ( trns ) free(trns);
return;
}
uint8_t *odata = calloc(cropw*croph,pxsize);
uint32_t ow = cropw, oh = croph;
int32_t ox = x-cropx, oy = y-cropy;

89
fontatlas.c Normal file
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@ -0,0 +1,89 @@
/*
fontatlas.c : Convert json data from font texture generator to a
plaintext format that's easier to read from zscript code.
(https://evanw.github.io/font-texture-generator/)
Copyright (c) 2022 Marisa the Magician, UnSX Team
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <stdio.h>
#include <math.h>
#include <jansson.h>
typedef struct
{
int x, y, width, height, xofs, yofs, advance;
} glyph_t;
int main( int argc, char **argv )
{
if ( argc < 2 )
{
fprintf(stderr,"usage: fontatlas <data.json>\n");
return 0;
}
glyph_t glyphs[256] = {{0}};
json_error_t error;
json_t *root = json_load_file(argv[1],0,&error);
if ( !root )
{
fprintf(stderr,"fontatlas: parse error at line %d: %s\n",
error.line,error.text);
return 1;
}
json_t *fontheight = json_object_get(root,"size");
int fonth = json_integer_value(fontheight);
json_t *chars = json_object_get(root,"characters");
const char *key;
json_t *val;
json_object_foreach(chars,key,val)
{
int ch = 0;
if ( key[1] )
{
ch = (key[0]&0b00011111)<<6;
ch |= key[1]&0b00111111;
}
else ch = key[0];
json_t *go = json_object_get(val,"x");
glyphs[ch].x = json_integer_value(go);
go = json_object_get(val,"y");
glyphs[ch].y = json_integer_value(go);
go = json_object_get(val,"width");
glyphs[ch].width = json_integer_value(go);
go = json_object_get(val,"height");
glyphs[ch].height = json_integer_value(go);
go = json_object_get(val,"originX");
glyphs[ch].xofs = json_integer_value(go);
go = json_object_get(val,"originY");
glyphs[ch].yofs = json_integer_value(go);
go = json_object_get(val,"advance");
glyphs[ch].advance = json_integer_value(go);
}
json_decref(root);
glyphs[' '].advance = ceilf(glyphs['m'].advance/4.); // set space width (quarter-em)
printf("%d\n",fonth);
for ( int i=0; i<256; i++ )
printf("%d %d %d %d %d %d %d\n",glyphs[i].x,glyphs[i].y,
glyphs[i].width,glyphs[i].height,glyphs[i].xofs,
glyphs[i].yofs,glyphs[i].advance);
return 0;
}

209
fontspread.c Normal file
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@ -0,0 +1,209 @@
/*
fontspread.c : Spread font atlas texture from font texture generator
into a linear texture with all characters one after another, or reverse
the process. This allows applying effects such as gradients with ease.
(https://evanw.github.io/font-texture-generator/)
Copyright (c) 2022 Marisa the Magician, UnSX Team
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <stdint.h>
#include <stdlib.h>
#include <math.h>
#include <jansson.h>
// TODO: use PNGs instead of goddamn raw RGBA8 image data
typedef struct
{
int x, y, width, height, xofs, yofs, advance;
} glyph_t;
uint32_t getpixel( uint32_t *buf, int bw, int bh, int x, int y )
{
if ( (x < 0) || (x >= bw) || (y < 0) || (y >= bh) )
return 0;
return buf[x+y*bw];
}
void putpixel( uint32_t px, uint32_t *buf, int bw, int bh, int x, int y )
{
if ( (x < 0) || (x >= bw) || (y < 0) || (y >= bh) )
return;
buf[x+y*bw] = px;
}
int main( int argc, char **argv )
{
int rev = 0;
int barg = 1;
if ( (argc > 1) && !strcmp(argv[1],"-i") )
{
rev = 1;
barg++;
}
if ( argc < barg+3 )
{
fprintf(stderr,"usage: fontspread [-i] <data.json> <atlas.data> <texture.data>\n");
return 0;
}
glyph_t glyphs[256] = {{0}};
json_error_t error;
json_t *root = json_load_file(argv[barg],0,&error);
if ( !root )
{
fprintf(stderr,"fontspread: parse error at line %d: %s\n",
error.line,error.text);
return 1;
}
json_t *fontheight = json_object_get(root,"size");
int fonth = json_integer_value(fontheight);
json_t *atlaswidth = json_object_get(root,"width");
int atlasw = json_integer_value(atlaswidth);
json_t *atlasheight = json_object_get(root,"height");
int atlash = json_integer_value(atlasheight);
json_t *chars = json_object_get(root,"characters");
const char *key;
json_t *val;
json_object_foreach(chars,key,val)
{
int ch = 0;
if ( key[1] )
{
ch = (key[0]&0b00011111)<<6;
ch |= key[1]&0b00111111;
}
else ch = key[0];
json_t *go = json_object_get(val,"x");
glyphs[ch].x = json_integer_value(go);
go = json_object_get(val,"y");
glyphs[ch].y = json_integer_value(go);
go = json_object_get(val,"width");
glyphs[ch].width = json_integer_value(go);
go = json_object_get(val,"height");
glyphs[ch].height = json_integer_value(go);
go = json_object_get(val,"originX");
glyphs[ch].xofs = json_integer_value(go);
go = json_object_get(val,"originY");
glyphs[ch].yofs = json_integer_value(go);
go = json_object_get(val,"advance");
glyphs[ch].advance = json_integer_value(go);
}
json_decref(root);
int iw = 0, ih = fonth, xx = 0;
for ( int i=0; i<256; i++ )
{
int yy = fonth-glyphs[i].yofs;
if ( yy+glyphs[i].height > ih ) ih = yy+glyphs[i].height;
xx += glyphs[i].width;
iw = xx;
}
printf("Estimated texture dimensions: %dx%d\n",iw,ih);
if ( rev )
{
FILE *f = fopen(argv[barg+2],"rb");
if ( !f )
{
fprintf(stderr,"fontspread: failed to open texture: %s\n",strerror(errno));
return 2;
}
uint32_t *tdata = calloc(iw*ih,sizeof(uint32_t));
int got = fread(tdata,sizeof(uint32_t),iw*ih,f);
if ( got < (iw*ih) )
{
fprintf(stderr,"fontspread: size mismatch in texture, should be %d, got %d\n",iw*ih,got);
free(tdata);
fclose(f);
return 4;
}
fclose(f);
uint32_t *adata = calloc(atlasw*atlash,sizeof(uint32_t));
xx = 0;
for ( int i=0; i<256; i++ )
{
int yy = fonth-glyphs[i].yofs;
for ( int y=0; y<glyphs[i].height; y++ ) for ( int x=0; x<glyphs[i].width; x++ )
{
uint32_t px = getpixel(tdata,iw,ih,xx+x,yy+y);
putpixel(px,adata,atlasw,atlash,glyphs[i].x+x,glyphs[i].y+y);
}
xx += glyphs[i].width;
}
free(tdata);
f = fopen(argv[barg+1],"wb");
if ( !f )
{
fprintf(stderr,"fontspread: failed to open atlas: %s\n",strerror(errno));
free(adata);
return 8;
}
fwrite(adata,sizeof(uint32_t),atlasw*atlash,f);
free(adata);
fclose(f);
return 0;
}
else
{
FILE *f = fopen(argv[barg+1],"rb");
if ( !f )
{
fprintf(stderr,"fontspread: failed to open atlas: %s\n",strerror(errno));
return 2;
}
uint32_t *adata = calloc(atlasw*atlash,sizeof(uint32_t));
int got = fread(adata,sizeof(uint32_t),atlasw*atlash,f);
if ( got < (atlasw*atlash) )
{
fprintf(stderr,"fontspread: size mismatch in atlas, should be %d, got %d\n",atlasw*atlash,got);
free(adata);
fclose(f);
return 4;
}
fclose(f);
uint32_t *tdata = calloc(iw*ih,sizeof(uint32_t));
xx = 0;
for ( int i=0; i<256; i++ )
{
int yy = fonth-glyphs[i].yofs;
for ( int y=0; y<glyphs[i].height; y++ ) for ( int x=0; x<glyphs[i].width; x++ )
{
uint32_t px = getpixel(adata,atlasw,atlash,glyphs[i].x+x,glyphs[i].y+y);
putpixel(px,tdata,iw,ih,xx+x,yy+y);
}
xx += glyphs[i].width;
}
free(adata);
f = fopen(argv[barg+2],"wb");
if ( !f )
{
fprintf(stderr,"fontspread: failed to open texture: %s\n",strerror(errno));
free(tdata);
return 8;
}
fwrite(tdata,sizeof(uint32_t),iw*ih,f);
free(tdata);
fclose(f);
}
return 0;
}