RepoMirrors/xonotic
1
0
Fork 0
mirror of https://gitlab.com/xonotic/xonotic synced 2025-01-08 15:09:31 +00:00
Code Issues Packages Projects Releases Wiki Activity
abb34dc9e1
xonotic/misc/tools/ttf2conchars/ttf2conchars.c
xonotic e5832bf2ec initial checkin from nexuiz svn r8756
2010-03-18 14:22:15 +01:00

894 lines
22 KiB
C
Raw Blame History

#include <stdio.h>
#include <errno.h>
#include <stdarg.h>
#include <math.h>
#include "SDL/SDL.h"
#include "SDL/SDL_ttf.h"
#include "SDL/SDL_image.h"
#ifdef _MSC_VER
#define snprintf _snprintf
#pragma message("You are using a broken and outdated compiler. Do not expect this to work.")
#endif
void warn(const char *fmt, ...)
{
va_list list;
int e = errno;
va_start(list, fmt);
vfprintf(stderr, fmt, list);
fputs(": ", stderr);
fputs(strerror(e), stderr);
fputs("\n", stderr);
}
void warnx(const char *fmt, ...)
{
va_list list;
va_start(list, fmt);
vfprintf(stderr, fmt, list);
fputs("\n", stderr);
}
void err(int ex, const char *fmt, ...)
{
va_list list;
int e = errno;
va_start(list, fmt);
vfprintf(stderr, fmt, list);
fputs(": ", stderr);
fputs(strerror(e), stderr);
fputs("\n", stderr);
exit(ex);
}
void errx(int ex, const char *fmt, ...)
{
va_list list;
va_start(list, fmt);
vfprintf(stderr, fmt, list);
fputs("\n", stderr);
exit(ex);
}
void Image_WriteTGABGRA (const char *filename, int width, int height, const unsigned char *data)
{
int y;
unsigned char *buffer, *out;
const unsigned char *in, *end;
FILE *f;
buffer = (unsigned char *)malloc(width*height*4 + 18);
memset (buffer, 0, 18);
buffer[2] = 2; /* uncompressed type */
buffer[12] = (width >> 0) & 0xFF;
buffer[13] = (width >> 8) & 0xFF;
buffer[14] = (height >> 0) & 0xFF;
buffer[15] = (height >> 8) & 0xFF;
for (y = 3;y < width*height*4;y += 4)
if (data[y] < 255)
break;
if (y < width*height*4)
{
/* save the alpha channel */
buffer[16] = 32; /* pixel size */
buffer[17] = 8; /* 8 bits of alpha */
/* flip upside down */
out = buffer + 18;
for (y = height - 1;y >= 0;y--)
{
memcpy(out, data + y * width * 4, width * 4);
out += width*4;
}
}
else
{
/* save only the color channels */
buffer[16] = 24; /* pixel size */
buffer[17] = 0; /* 8 bits of alpha */
/* truncate bgra to bgr and flip upside down */
out = buffer + 18;
for (y = height - 1;y >= 0;y--)
{
in = data + y * width * 4;
end = in + width * 4;
for (;in < end;in += 4)
{
*out++ = in[0];
*out++ = in[1];
*out++ = in[2];
}
}
}
f = fopen(filename, "wb");
if(!f)
err(1, "WriteTGA");
if(fwrite(buffer, out - buffer, 1, f) != 1)
err(1, "WriteTGA");
if(fclose(f))
err(1, "WriteTGA");
free(buffer);
}
/*
* Return the pixel value at (x, y)
* NOTE: The surface must be locked before calling this!
*/
Uint32 getpixel(SDL_Surface *surface, int x, int y)
{
int bpp = surface->format->BytesPerPixel;
/* Here p is the address to the pixel we want to retrieve */
Uint8 *p = (Uint8 *)surface->pixels + y * surface->pitch + x * bpp;
switch(bpp) {
case 1:
return *p;
case 2:
return *(Uint16 *)p;
case 3:
if(SDL_BYTEORDER == SDL_BIG_ENDIAN)
return p[0] << 16 | p[1] << 8 | p[2];
else
return p[0] | p[1] << 8 | p[2] << 16;
case 4:
return *(Uint32 *)p;
default:
return 0; /* shouldn't happen, but avoids warnings */
}
}
/*
* Set the pixel at (x, y) to the given value
* NOTE: The surface must be locked before calling this!
*/
void putpixel(SDL_Surface *surface, int x, int y, Uint32 pixel)
{
int bpp = surface->format->BytesPerPixel;
/* Here p is the address to the pixel we want to set */
Uint8 *p = (Uint8 *)surface->pixels + y * surface->pitch + x * bpp;
switch(bpp) {
case 1:
*p = pixel;
break;
case 2:
*(Uint16 *)p = pixel;
break;
case 3:
if(SDL_BYTEORDER == SDL_BIG_ENDIAN) {
p[0] = (pixel >> 16) & 0xff;
p[1] = (pixel >> 8) & 0xff;
p[2] = pixel & 0xff;
} else {
p[0] = pixel & 0xff;
p[1] = (pixel >> 8) & 0xff;
p[2] = (pixel >> 16) & 0xff;
}
break;
case 4:
*(Uint32 *)p = pixel;
break;
}
}
#define MIN(a,b) (((a)<(b))?(a):(b))
#define MAX(a,b) (((a)>(b))?(a):(b))
#define BOUND(a,b,c) MAX(a,MIN(b,c))
#define BLURFUNC(d,A,B) A-B*(d)
#define BLURFUNCIMAX(A,B) ceil(sqrt((A)/(B)))
Uint32 getpixelfilter(SDL_Surface *src, SDL_PixelFormat *fmt, int x, int y, double A, double B, double C)
{
double r, g, b, a, f;
Uint8 pr, pg, pb, pa;
int i, j;
int imax = (int) BLURFUNCIMAX(A,B);
/* 1. calculate blackened blurred image */
a = 0;
for(i=-imax; i<=imax; ++i)
if(y+i >= 0 && y+i < src->h)
for(j=-imax; j<=imax; ++j)
if(x+j >= 0 && x+j < src->w)
{
SDL_GetRGBA(getpixel(src, x+j, y+i), src->format, &pr, &pg, &pb, &pa);
f = BLURFUNC(i*i+j*j, A, B);
f = MAX(0, f);
if(C == 0)
a = MAX(a, pa * f);
else
a = a + pa * f;
}
a = MIN(a, 255);
if(C == 0)
{
/* 2. overlap it with the actual image again */
if(y >= 0 && y < src->h && x >= 0 && x < src->w)
{
SDL_GetRGBA(getpixel(src, x, y), src->format, &pr, &pg, &pb, &pa);
f = a + pa - (a * pa) / 255L;
r = pr * pa / f;
g = pg * pa / f;
b = pb * pa / f;
a = f;
}
else
{
r = 0;
g = 0;
b = 0;
a = a;
}
}
else if(C > 0)
r = g = b = MAX(0, 255 - C * (255 - a));
else if(C < 0)
r = g = b = MAX(0, 255 + C * a);
return SDL_MapRGBA(fmt, (unsigned char) r, (unsigned char) g, (unsigned char) b, (unsigned char) a);
}
void blitfilter(SDL_Surface *src, SDL_Surface *dest, int x0, int y0, double A, double B, double C)
{
/* note: x0, y0 is the origin of the UNFILTERED image; it is "transparently" expanded by a BLURFUNCIMAX. */
int x, y, d, xa, ya, xb, yb;
d = (int) BLURFUNCIMAX(A, B);
SDL_LockSurface(src);
SDL_LockSurface(dest);
xa = x0 - d;
ya = y0 - d;
xb = x0 + src->w + d;
yb = y0 + src->h + d;
if(xa < 0) xa = 0;
if(ya < 0) ya = 0;
if(xa >= dest->w) xa = dest->w - 1;
if(ya >= dest->h) ya = dest->h - 1;
for(y = ya; y <= yb; ++y)
for(x = xa; x <= xb; ++x)
putpixel(dest, x, y, getpixelfilter(src, dest->format, x - x0, y - y0, A, B, C));
SDL_UnlockSurface(dest);
SDL_UnlockSurface(src);
}
int mapFont(int d, char *c_)
{
unsigned char *c = (unsigned char *) c_;
if(!d)
return ((*c >= 0x20 && *c <= 0x7E) || (*c >= 0xA0 && *c <= 0xFE)) ? 0 : -1;
if(*c >= 0x20 && *c <= 0x7E)
return 0;
if(*c >= 0xA0 && *c <= 0xAF)
{
*c &= 0x7F;
return 1;
}
if(*c >= 0xB0 && *c <= 0xB9)
{
*c &= 0x7F;
return 2;
}
if(*c >= 0xBA && *c <= 0xDF)
{
*c &= 0x7F;
return 1; /* cool */
}
if(*c >= 0xE0 && *c <= 0xFE)
{
*c &= 0x5F;
return 2; /* lcd */
}
return -1;
}
/**
* @brief Blit a surface onto another and stretch it.
* With a 4.2 gcc you can use -fopenmp :)
* You might want to add some linear fading for scaling up?
*
* @param dst Destination surface
* @param src Source surface, if NULL, the destination surface is used
* @param drec The target area
* @param srec The source area, if NULL, then you suck :P
*/
void StretchBlit(SDL_Surface *dst, SDL_Surface *src, SDL_Rect *drec, SDL_Rect *srec)
{
unsigned int freeSource;
int x, y;
double scaleX;
double scaleY;
if(!src)
src = dst;
freeSource = 0;
if(src == dst) {
/* To avoid copying copied pixels, that would suck :) */
src = SDL_ConvertSurface(dst, dst->format, dst->flags);
freeSource = 1;
}
if(!drec)
drec = &dst->clip_rect;
if(!srec)
srec = &src->clip_rect;
SDL_LockSurface(dst);
SDL_LockSurface(src);
scaleX = (double)srec->w / (double)drec->w;
scaleY = (double)srec->h / (double)drec->h;
for(y = drec->y; y < (drec->y + drec->h); ++y)
{
int dy;
if(y >= dst->h)
break;
dy = y - drec->y;
for(x = drec->x; x < (drec->x + drec->w); ++x)
{
int dx;
double dfromX, dfromY, dtoX, dtoY;
int fromX, fromY, toX, toY;
int i, j;
unsigned int r, g, b, a, ar, ag, ab;
unsigned int count;
if(x >= dst->w)
break;
/* dx, dy relative to the drec start */
dx = x - drec->x;
/* Get the pixel range which represents the current pixel */
/* When scaling down this should be a rectangle :) */
/* Otherwise it's just 1 pixel anyway, from==to then */
dfromX = dx * scaleX;
dfromY = dy * scaleY;
dtoX = (dx+1) * scaleX;
dtoY = (dy+1) * scaleY;
/* The first and last one usually aren't 100% within this space */
fromX = (int)dfromX; dfromX = 1.0 - (dfromX - fromX); /* invert the from percentage */
fromY = (int)dfromY; dfromY = 1.0 - (dfromY - fromY);
toX = (int)dtoX; dtoX -= toX; /* this one is ok */
toY = (int)dtoY; dtoY -= toY;
/* Short explanation:
* FROM is where to START, so when it's 5.7, then 30% of the 5th pixel is to be used
* TO is where it ENDS, so if it's 8.4, then 40% of the 9th pixel is to be used!
*/
/* Now get all the pixels and merge them together... */
count = 0;
r = g = b = a = ar = ag = ab = 0;
/*if(drec->w > 1024)
printf("%i %i - %f %f\n", fromX, toX, dfromX, dtoX);*/
/* when going from one to the next there's usually one */
/* situation where the left pixel has a value of 0.1something and */
/* the right one of 0 */
/* so adjust the values here */
/* otherwise we get lines in the image with the original color */
/* of the left pixel */
if(toX - fromX == 1 && drec->w > srec->w) {
dfromX = 1.0 - dtoX;
++fromX;
}
if(fromX == toX) {
dfromX -= 0.5;
if(dfromX > 0.0) {
--fromX;
dtoX = 1.0-dfromX;
} else {
++toX;
dtoX = -dfromX;
dfromX = 1.0-dtoX;
}
}
if(toY - fromY == 1 && drec->h > srec->h) {
dfromY = 1.0 - dtoY;
++fromY;
}
if(fromY == toY) {
dfromY -= 0.5;
if(dfromY > 0.0) {
--fromY;
dtoY = 1.0-dfromY;
} else {
++toY;
dtoY = -dfromY;
dfromY = 1.0-dtoY;
}
}
for(j = fromY; j <= toY; ++j)
{
if(j < 0)
continue;
if((j+srec->y) >= src->h)
break;
for(i = fromX; i <= toX; ++i)
{
Uint8 pr, pg, pb, pa;
Uint16 par, pag, pab;
double inc = 1;
int iinc;
if(x < 0)
continue;
if((i+srec->x) >= src->w)
break;
SDL_GetRGBA(getpixel(src, i + srec->x, j + srec->y), src->format, &pr, &pg, &pb, &pa);
par = pa * (unsigned int)pr;
pag = pa * (unsigned int)pg;
pab = pa * (unsigned int)pb;
if(i == fromX)
inc *= dfromX;
if(j == fromY)
inc *= dfromY;
if(i == (toX))
inc *= dtoX;
if(j == (toY))
inc *= dtoY;
iinc = (int) (inc * 256);
r += (pr * iinc);
g += (pg * iinc);
b += (pb * iinc);
ar += (par * iinc);
ag += (pag * iinc);
ab += (pab * iinc);
a += (pa * iinc);
/* ++count; */
count += iinc;
}
}
/* printf("COLOR VALUE: %i, %i, %i, %i \t COUNT: %f\n", r, g, b, a, count); */
if(a)
{
r = ar / a;
g = ag / a;
b = ab / a;
a /= count;
}
else
{
r /= count;
g /= count;
b /= count;
a /= count;
}
putpixel(dst, x, y, SDL_MapRGBA(dst->format, (Uint8)r, (Uint8)g, (Uint8)b, (Uint8)a));
}
}
SDL_UnlockSurface(dst);
SDL_UnlockSurface(src);
if(freeSource)
SDL_FreeSurface(src);
}
void StretchDown(SDL_Surface *srfc, int x, int y, int w, int h, int wtarget)
{
/* @"#$ SDL has no StretchBlit */
/* this one is slow, but at least I know how it works */
int r, c;
unsigned int *stretchedline = (unsigned int *) alloca(8 * wtarget * sizeof(unsigned int)); /* ra ga ba r g b a n */
SDL_LockSurface(srfc);
for(r = y; r < y + h; ++r)
{
/* each input pixel is wtarget pixels "worth" */
/* memset(stretchedline, sizeof(stretchedline), 0); */
memset(stretchedline, 0, 8 * wtarget * sizeof(unsigned int));
for(c = 0; c < w * wtarget; ++c)
{
Uint8 pr, pg, pb, pa;
unsigned int *p = &stretchedline[8 * (c / w)];
SDL_GetRGBA(getpixel(srfc, x + c / wtarget, r), srfc->format, &pr, &pg, &pb, &pa);
p[0] += (unsigned int) pr * (unsigned int) pa;
p[1] += (unsigned int) pg * (unsigned int) pa;
p[2] += (unsigned int) pb * (unsigned int) pa;
p[3] += (unsigned int) pr;
p[4] += (unsigned int) pg;
p[5] += (unsigned int) pb;
p[6] += (unsigned int) pa;
p[7] += 1;
}
for(c = 0; c < wtarget; ++c)
{
unsigned int *p = &stretchedline[8 * c];
if(p[6])
putpixel(srfc, x + c, r, SDL_MapRGBA(srfc->format, p[0] / p[6], p[1] / p[6], p[2] / p[6], p[6] / p[7]));
else
putpixel(srfc, x + c, r, SDL_MapRGBA(srfc->format, p[3] / p[7], p[4] / p[7], p[5] / p[7], p[6] / p[7]));
}
for(c = wtarget; c < w; ++c)
putpixel(srfc, x + c, r, SDL_MapRGBA(srfc->format, 0, 0, 0, 0));
}
SDL_UnlockSurface(srfc);
}
int GetBoundingBox(SDL_Surface *surf, const SDL_Rect *inbox, SDL_Rect *outbox)
{
int bx = -1, by = -1; /* start */
/* int bw = 0, bh = 0; */
int ex = -1, ey = -1; /* end */
int cx, cy;
for(cx = inbox->x; cx < inbox->x + inbox->w; ++cx)
{
for(cy = inbox->y; cy < inbox->y + inbox->h; ++cy)
{
Uint8 pr, pg, pb, pa;
SDL_GetRGBA(getpixel(surf, cx, cy), surf->format, &pr, &pg, &pb, &pa);
/* include colors, or only care about pa? */
if(!pa)
continue;
if(bx < 0) {
bx = ex = cx;
by = ey = cy;
continue;
}
if(cx < bx) /* a pixel more on the left */
bx = cx;
if(cy < by) /* a pixel more above... */
by = cy;
if(cx > ex) /* a pixel on the right */
ex = cx;
if(cy > ey) /* a pixel on the bottom :) */
ey = cy;
}
}
if(ex < 0)
return 0;
outbox->x = bx;
outbox->y = by;
outbox->w = (ex - bx + 1);
outbox->h = (ey - by + 1);
return 1;
}
int main(int argc, char **argv)
{
SDL_Rect in, out;
SDL_Surface *conchars, *conchars0;
SDL_Surface *glyph;
TTF_Font *fonts[3];
SDL_Color white = {255, 255, 255, 255};
Uint32 transparent;
int maxAscent, maxDescent, maxWidth;
int i, j;
int currentSize;
int isfixed;
const char *infilename;
int referenceTop;
int referenceBottom;
int cell;
const char *outfilename;
const char *font0;
const char *font1;
const char *font2;
double A;
double B;
double C;
int differentFonts;
int d;
double f = 0, a = 0;
char widthfilename[512];
int border;
FILE *widthfile;
if(argc != 12)
errx(1, "Usage: %s infile.tga topref bottomref cellheight outfile.tga font.ttf fontCOOL.ttf fontLCD.ttf blurA blurB blurColors\n", argv[0]);
infilename = argv[1];
referenceTop = atoi(argv[2]);
referenceBottom = atoi(argv[3]);
cell = atoi(argv[4]);
outfilename = argv[5];
font0 = argv[6];
font1 = argv[7];
font2 = argv[8];
A = atof(argv[9]);
B = atof(argv[10]);
C = atof(argv[11]);
d = (int) BLURFUNCIMAX(1, B);
fprintf(stderr, "Translating parameters:\nA=%f B=%f (using %d pixels)\n", A, B, (int) BLURFUNCIMAX(1, B));
if(C == 0)
{
B = A * B;
A = A * 1;
}
else
{
for(i=-d; i<=d; ++i)
for(j=-d; j<=d; ++j)
{
f = BLURFUNC(i*i+j*j, 1, B);
f = MAX(0, f);
if(C == 0)
a = MAX(a, f);
else
a = a + f;
}
B = A/a * B;
A = A/a * 1;
}
fprintf(stderr, "A=%f B=%f (using %d pixels)\n", A, B, (int) BLURFUNCIMAX(A, B));
snprintf(widthfilename, sizeof(widthfilename), "%.*s.width", (int)strlen(outfilename) - 4, outfilename);
border=(int) BLURFUNCIMAX(A, B);
if(SDL_Init(0) < 0)
errx(1, "SDL_Init failed");
if(TTF_Init() < 0)
errx(1, "TTF_Init failed: %s", TTF_GetError());
conchars0 = IMG_Load(infilename);
if(!conchars0)
errx(1, "IMG_Load failed: %s", IMG_GetError());
if(conchars0->w != conchars0->h)
errx(1, "conchars aren't square");
if(conchars0->w % 16)
errx(1, "conchars have bad width");
conchars = SDL_CreateRGBSurface(SDL_SWSURFACE, cell * 16, cell * 16, 32, 0x00ff0000, 0x0000ff00, 0x000000ff, 0xff000000);
in.x = in.y = out.x = out.y = 0;
in.w = in.h = conchars0->w;
out.w = out.h = cell * 16;
StretchBlit(conchars, conchars0, &out, &in);
SDL_FreeSurface(conchars0);
for(currentSize = cell * 2; currentSize; --currentSize)
{
fonts[0] = TTF_OpenFont(font0, currentSize);
if(!fonts[0])
errx(1, "TTF_OpenFont %s failed: %s", font0, TTF_GetError());
if(strcmp(font0, font1) || strcmp(font0, font2))
{
if(*font1)
{
fonts[1] = TTF_OpenFont(font1, currentSize);
if(!fonts[1])
warnx("TTF_OpenFont %s failed: %s", font1, TTF_GetError());
}
else
fonts[1] = NULL;
if(*font2)
{
fonts[2] = TTF_OpenFont(font2, currentSize);
if(!fonts[2])
warnx("TTF_OpenFont %s failed: %s", font2, TTF_GetError());
}
else
fonts[2] = NULL;
differentFonts = 1;
}
else
{
fonts[1] = fonts[2] = fonts[0];
differentFonts = 0;
}
/* maxAscent = MAX(MAX(TTF_FontAscent(fonts[0]), fonts[1] ? TTF_FontAscent(fonts[1]) : 0), fonts[2] ? TTF_FontAscent(fonts[2]) : 0); */
/* maxDescent = -MIN(MIN(TTF_FontDescent(fonts[0]), fonts[1] ? TTF_FontDescent(fonts[1]) : 0), fonts[2] ? TTF_FontDescent(fonts[2]) : 0); */
maxAscent = 0;
maxDescent = 0;
maxWidth = 0;
for(i = 0; i < 256; ++i)
{
char str[2];
int fntid = mapFont(differentFonts, &str[0]);
str[0] = i; str[1] = 0;
if(fntid < 0)
continue;
if(!fonts[fntid])
continue;
glyph = TTF_RenderText_Blended(fonts[fntid], str, white);
if(!glyph)
errx(1, "TTF_RenderText_Blended %d failed: %s", i, TTF_GetError());
if(fntid == 0)
maxWidth = MAX(maxWidth, glyph->w);
in.x = 0;
in.y = 0;
in.w = glyph->w;
in.h = glyph->h;
if(GetBoundingBox(glyph, &in, &out))
{
int baseline = TTF_FontAscent(fonts[fntid]);
int asc = baseline - out.y;
int desc = (out.y + out.h - 1) - baseline;
//fprintf(stderr, "%c: rect %d %d %d %d baseline %d\n", (int)i, out.x, out.y, out.w, out.h, baseline);
//fprintf(stderr, "%c: ascent %d descent %d\n", (int)i, asc, desc);
if(asc > maxAscent)
maxAscent = asc;
if(desc > maxDescent)
maxDescent = desc;
}
SDL_FreeSurface(glyph);
}
maxAscent += 10;
maxDescent += 10;
if(border + maxAscent + 1 + maxDescent + border <= cell)
if(border + maxWidth + border <= cell)
break; /* YEAH */
if(differentFonts)
{
if(fonts[2])
TTF_CloseFont(fonts[2]);
if(fonts[1])
TTF_CloseFont(fonts[1]);
}
TTF_CloseFont(fonts[0]);
}
if(!currentSize)
errx(1, "Sorry, no suitable size found.");
fprintf(stderr, "Using font size %d (%d + 1 + %d)\n", currentSize, maxAscent, maxDescent);
isfixed = TTF_FontFaceIsFixedWidth(fonts[0]);
if(getenv("FORCE_FIXED"))
isfixed = 1;
/* TODO convert conchars to BGRA (so the TGA writer can reliably use it) */
transparent = SDL_MapRGBA(conchars->format, 255, 0, 255, 0);
widthfile = fopen(widthfilename, "w");
if(!widthfile)
err(1, "fopen widthfile");
fprintf(widthfile, "extraspacing %f\n", 0.0);
fprintf(widthfile, "scale %f\n", 1.0);
for(i = 0; i < 256; ++i)
{
int w, h;
int fntid;
SDL_Rect dest;
char str[2]; str[0] = i; str[1] = 0;
if(i && !(i % 16))
fprintf(widthfile, "\n");
fntid = mapFont(differentFonts, &str[0]);
if(fntid < 0 || !fonts[fntid])
{
SDL_Rect src, src2;
int destTop, destBottom;
src.x = cell * (i % 16);
src.y = cell * (i / 16);
src.w = cell;
src.h = cell;
src2.x = 0;
src2.y = 0;
src2.w = cell;
src2.h = cell;
glyph = SDL_CreateRGBSurface(SDL_SWSURFACE, cell, cell, 32, 0x000000ff, 0x0000ff00, 0x00ff0000, 0xff000000);
SDL_FillRect(glyph, &src2, transparent);
/* map: */
/* referenceTop -> (cell - (maxAscent + 1 + maxDescent)) / 2 */
/* referenceBottom -> (cell - (maxAscent + 1 + maxDescent)) / 2 + maxAscent */
destTop = (cell - (maxAscent + 1 + maxDescent)) / 2;
destBottom = (cell - (maxAscent + 1 + maxDescent)) / 2 + maxAscent;
/* map is: */
/* x' = x / cell * h + y */
/* solve: */
/* destTop = referenceTop / cell * h + y */
/* destBottom = referenceBottom / cell * h + y */
dest.x = 0;
dest.y = (int) ((double) (destBottom * referenceTop - destTop * referenceBottom) / (double) (referenceTop - referenceBottom));
dest.h = (int) (cell * (double) (destBottom - destTop) / (double) (referenceBottom - referenceTop));
dest.w = dest.h;
/*
if(dest.y < 0)
dest.y = 0;
if(dest.w > glyph->w)
dest.w = glyph->w;
if(dest.y + dest.h > glyph->h)
dest.h = glyph->h - dest.y;
*/
if(isfixed)
dest.w = border + maxWidth + border;
StretchBlit(glyph, conchars, &dest, &src);
/* SDL_FillRect(conchars, &src, transparent); */
/* SDL_BlitSurface(glyph, &src2, conchars, &src); */
StretchBlit(conchars, glyph, &src, &src2);
SDL_FreeSurface(glyph);
fprintf(widthfile, "%f ", dest.w / (double) cell);
continue;
}
fprintf(stderr, "glyph %d...\n", i);
glyph = TTF_RenderText_Blended(fonts[fntid], str, white);
if(!glyph)
errx(1, "TTF_RenderText_Blended %d failed: %s", i, TTF_GetError());
w = border + glyph->w + border;
h = border + glyph->h + border;
if(w > cell)
warnx("sorry, this font contains a character that is too wide... output will be borked");
dest.x = cell * (i % 16);
dest.y = cell * (i / 16);
dest.w = cell;
dest.h = cell;
SDL_FillRect(conchars, &dest, transparent);
dest.x += border + (isfixed ? ((border + maxWidth + border - w) / 2) : 0);
dest.y += (cell - (maxAscent + 1 + maxDescent)) / 2 + (maxAscent - TTF_FontAscent(fonts[fntid]));
blitfilter(glyph, conchars, dest.x, dest.y, A, B, C);
SDL_FreeSurface(glyph);
if(isfixed && w > border + maxWidth + border)
{
StretchDown(conchars, cell * (i % 16), cell * (i / 16), w, cell, border + maxWidth + border);
fprintf(widthfile, "%f ", (border + maxWidth + border) / (double) cell);
}
else
fprintf(widthfile, "%f ", (isfixed ? border + maxWidth + border : w) / (double) cell);
}
fprintf(widthfile, "\n");
fclose(widthfile);
fprintf(stderr, "Writing...\n");
Image_WriteTGABGRA(outfilename, conchars->w, conchars->h, (unsigned char *) conchars->pixels);
SDL_FreeSurface(conchars);
SDL_Quit();
return 0;
}
Reference in New Issue View Git Blame Copy Permalink