diff options
Diffstat (limited to 'chapters/image.adoc')
| -rw-r--r-- | chapters/image.adoc | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/chapters/image.adoc b/chapters/image.adoc index e098bac..f997992 100644 --- a/chapters/image.adoc +++ b/chapters/image.adoc @@ -55,21 +55,21 @@ None ---- // Ensure image size is supported by GPU APIs and that for integer // implementations, position * stride does not overflow int32_t. -REQUIRE(max(OH,OW,IH,IW) < 16384); +ERROR_IF(max(OH,OW,IH,IW) >= 16384); if (resize_t == float_t) { // The shift attribute is not used for floating point - REQUIRE(shift == 0); + ERROR_IF(shift != 0); } else { // if in_t=int8_t ensure that an int32_t accumulator can be used - REQUIRE(0 < shift && shift <= 11); + ERROR_IF(shift < 1 || shift > 11); // set a consistent lower limit of 1/16 downscale // independent of the shift value to simplify implementations - REQUIRE(0 < stride_x && stride_x < (16 << shift)); - REQUIRE(0 < stride_y && stride_y < (16 << shift)); + ERROR_IF(stride_x <= 0 || stride_x >= (16 << shift)); + ERROR_IF(stride_y <= 0 || 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. - REQUIRE((-16 << shift) < offset_x && offset_x < (16 << shift)); - REQUIRE((-16 << shift) < offset_y && offset_y < (16 << shift)); + ERROR_IF(offset_x <= (-16 << shift) || offset_x >= (16 << shift)); + ERROR_IF(offset_y <= (-16 << shift) || offset_y >= (16 << shift)); } for_each(0 <= n < N, 0 <= oy < OH, 0 <= ox < OW; 0 <= c < C) { unit = (resize_t == float_t) ? 1.0 : (1 << shift); |