diff options
Diffstat (limited to 'Build/source/libs/gd/libgd-src/src/gdfx.c')
| -rw-r--r-- | Build/source/libs/gd/libgd-src/src/gdfx.c | 39 |
1 files changed, 28 insertions, 11 deletions
diff --git a/Build/source/libs/gd/libgd-src/src/gdfx.c b/Build/source/libs/gd/libgd-src/src/gdfx.c index 13b32fe1c06..f145de04802 100644 --- a/Build/source/libs/gd/libgd-src/src/gdfx.c +++ b/Build/source/libs/gd/libgd-src/src/gdfx.c @@ -25,6 +25,9 @@ #define MAXY(x) MAX4(x[1],x[3],x[5],x[7]) #define MINY(x) MIN4(x[1],x[3],x[5],x[7]) +/* + Function: gdImageStringFTCircle +*/ BGD_DECLARE(char *) gdImageStringFTCircle (gdImagePtr im, int cx, @@ -165,9 +168,15 @@ gdImageStringFTCircle (gdImagePtr im, fclose (out); } #endif /* STEP_PNGS */ + + gdImageDestroy (im1); + /* Ready to produce a circle */ im3 = gdImageSquareToCircle (im2, radius); - gdImageDestroy (im1); + if (im3 == NULL) { + gdImageDestroy(im2); + return 0; + } gdImageDestroy (im2); /* Now blend im3 with the destination. Cheat a little. The source (im3) is white-on-black, so we can use the @@ -248,6 +257,9 @@ main (int argc, char *argv[]) #define SUPERBITS1 1 #define SUPERBITS2 2 +/* + Function: gdImageSquareToCircle +*/ BGD_DECLARE(gdImagePtr) gdImageSquareToCircle (gdImagePtr im, int radius) { @@ -259,6 +271,9 @@ gdImageSquareToCircle (gdImagePtr im, int radius) return 0; } im2 = gdImageCreateTrueColor (radius * 2, radius * 2); + if (!im2) { + return 0; + } /* Supersampling for a nicer result */ c = (im2->sx / 2) * SUPER; for (y = 0; (y < im2->sy * SUPER); y++) { @@ -372,16 +387,18 @@ gdImageSubSharpen (int pc, int c, int nc, float inner_coeff, float } /* - * Sharpen function added on 2003-11-19 - * by Paul Troughton (paul<dot>troughton<at>ieee<dot>org) - * Simple 3x3 convolution kernel - * Makes use of seperability - * Faster, but less flexible, than full-blown unsharp masking - * pct is sharpening percentage, and can be greater than 100 - * Silently does nothing to non-truecolor images - * Silently does nothing for pct<0, as not a useful blurring function - * Leaves transparency/alpha-channel untouched - */ + Function: gdImageSharpen + + Sharpen function added on 2003-11-19 + by Paul Troughton (paul<dot>troughton<at>ieee<dot>org) + Simple 3x3 convolution kernel + Makes use of seperability + Faster, but less flexible, than full-blown unsharp masking + pct is sharpening percentage, and can be greater than 100 + Silently does nothing to non-truecolor images + Silently does nothing for pct<0, as not a useful blurring function + Leaves transparency/alpha-channel untouched +*/ BGD_DECLARE(void) gdImageSharpen (gdImagePtr im, int pct) { |