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Fix #479: Provide a suitable malloc function to liq 

liq requires 16 byte alignment, which gdMalloc() doesn't guarantee.
Define and use a new malloc16() function when building with liq.
master
Ken Brown 2018-11-12 13:48:46 -05:00 committed by Mike Frysinger
parent 434b639d53
commit 529c471f7b
1 changed files with 10 additions and 1 deletions
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11
src/gd_topal.c
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@ -1523,6 +1523,15 @@ static void free_truecolor_image_data(gdImagePtr oim)
oim->tpixels = 0;
}
#ifdef HAVE_LIBIMAGEQUANT
/* liq requires 16 byte aligned heap memory */
static void *malloc16(size_t size)
{
void *p;
return posix_memalign(&p, 16, size) == 0 ? p : NULL;
}
#endif
/*
* Module initialization routine for 2-pass color quantization.
*/
@ -1601,7 +1610,7 @@ static int gdImageTrueColorToPaletteBody (gdImagePtr oim, int dither, int colors
#ifdef HAVE_LIBIMAGEQUANT
if (oim->paletteQuantizationMethod == GD_QUANT_DEFAULT ||
oim->paletteQuantizationMethod == GD_QUANT_LIQ) {
liq_attr *attr = liq_attr_create_with_allocator(gdMalloc, gdFree);
liq_attr *attr = liq_attr_create_with_allocator(malloc16, free);
liq_image *image;
liq_result *remap;
int remapped_ok = 0;