diff options
Diffstat (limited to 'chapters/image.adoc')
| -rw-r--r-- | chapters/image.adoc | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/chapters/image.adoc b/chapters/image.adoc index f997992..b8789ff 100644 --- a/chapters/image.adoc +++ b/chapters/image.adoc @@ -56,16 +56,18 @@ None // Ensure image size is supported by GPU APIs and that for integer // implementations, position * stride does not overflow int32_t. ERROR_IF(max(OH,OW,IH,IW) >= 16384); +ERROR_IF(stride_x <= 0 || stride_y <= 0); if (resize_t == float_t) { // The shift attribute is not used for floating point ERROR_IF(shift != 0); + ERROR_IF(stride_x > IW || stride_y > IH); } else { // if in_t=int8_t ensure that an int32_t accumulator can be used ERROR_IF(shift < 1 || shift > 11); // set a consistent lower limit of 1/16 downscale // independent of the shift value to simplify implementations - ERROR_IF(stride_x <= 0 || stride_x >= (16 << shift)); - ERROR_IF(stride_y <= 0 || stride_y >= (16 << shift)); + ERROR_IF(stride_x >= (16 << shift)); + ERROR_IF(stride_y >= (16 << shift)); // offset range is similarly limited to maximum 16 pixels irrespective // of shift. Both stride and offset fit in int16_t when shift=11. ERROR_IF(offset_x <= (-16 << shift) || offset_x >= (16 << shift)); |