Lines Matching defs:check
92 * via png_set_sig_bytes(), and we will only check the remaining bytes
108 /* Read and check the PNG file signature. */
804 // check if the x2_filter is effective: only supports channels 3 or 4
1337 * latter by doing SCALE first. This is ok and allows apps not to check for
1943 if (encoding == P_FILE) /* double check */
3156 /* Double check using the recorded background index */
3658 /* Double check the convoluted logic below. We expect to get here with
3941 /* Add transforms to ensure the correct output format is produced then check
3947 /* Now check the format to see if it was modified. */
4030 /* If 'do_local_background' is set check for the presence of gamma
4205 /* If the *output* is 16-bit then we need to check for a byte-swap on this
4368 /* Check for row_stride overflow. This check is not performed on the
4382 png_uint_32 check;
4389 check = (png_uint_32)(-row_stride);
4392 check = (png_uint_32)row_stride;
4394 /* This verifies 'check', the absolute value of the actual stride
4398 if (image->opaque != NULL && buffer != NULL && check >= png_row_stride)
4400 /* Now check for overflow of the image buffer calculation; this
4417 0xffffffffU/PNG_IMAGE_PIXEL_COMPONENT_SIZE(image->format)/check)