diff options
Diffstat (limited to 'nx-X11/programs/Xserver/hw/nxagent/compext/Png.c')
| -rw-r--r-- | nx-X11/programs/Xserver/hw/nxagent/compext/Png.c | 43 |
1 files changed, 13 insertions, 30 deletions
diff --git a/nx-X11/programs/Xserver/hw/nxagent/compext/Png.c b/nx-X11/programs/Xserver/hw/nxagent/compext/Png.c index e80f3879d..77a1941ea 100644 --- a/nx-X11/programs/Xserver/hw/nxagent/compext/Png.c +++ b/nx-X11/programs/Xserver/hw/nxagent/compext/Png.c @@ -481,47 +481,23 @@ char *PngCompressData(XImage *image, int *compressed_size) return NULL; } + int count; if (color_type == PNG_COLOR_TYPE_PALETTE) { - srcBuf = (CARD8 *) malloc(w * sizeof(CARD8)); - - if (srcBuf == NULL) - { - #ifdef PANIC - fprintf(stderr, "******PngCompressData: PANIC! Cannot allocate [%d] bytes.\n", - (int) (w * sizeof(CARD8))); - #endif - - free(image_index); - - return NULL; - } - - /* - * TODO: Be sure the padded bytes are cleaned. - * It would be better to set to zero the bytes - * that are not aligned to the word boundary - * at the end of the procedure. - */ - - memset(srcBuf, 0, w * sizeof(CARD8)); + count = w; } else { - srcBuf = (CARD8 *) malloc(w * 3 * sizeof(CARD8)); - - /* - * TODO: See above. - */ - - memset(srcBuf, 0, w * 3 * sizeof(CARD8)); + count = 3 * w; } + srcBuf = (CARD8 *) calloc(count, sizeof(CARD8)); + if (srcBuf == NULL) { #ifdef PANIC fprintf(stderr, "******PngCompressData: PANIC! Cannot allocate [%d] bytes.\n", - w * 3); + (int) (count * sizeof(CARD8))); #endif free(pngCompBuf); @@ -530,6 +506,13 @@ char *PngCompressData(XImage *image, int *compressed_size) return NULL; } + /* + * TODO: Be sure the padded bytes are cleaned. + * It would be better to set to zero the bytes + * that are not aligned to the word boundary + * at the end of the procedure. + */ + for (dy = 0; dy < h; dy++) { if (color_type == PNG_COLOR_TYPE_RGB) |