Function avifSampleTransformOperation32bOneOperand

src/sampletransform.c:200–224

}

static int32_t avifSampleTransformOperation32bOneOperand(int32_t operand, uint8_t operator)
{
    switch (operator) {
        case AVIF_SAMPLE_TRANSFORM_NEGATION:
            return avifSampleTransformClamp32b(-(int64_t)operand);
        case AVIF_SAMPLE_TRANSFORM_ABSOLUTE:
            return operand >= 0 ? operand : avifSampleTransformClamp32b(-(int64_t)operand);
        case AVIF_SAMPLE_TRANSFORM_NOT:
            return ~operand;
        case AVIF_SAMPLE_TRANSFORM_BSR: {
            if (operand <= 0) {
                return 0;
            }
            int32_t log2 = 0;
            operand >>= 1;
            for (; operand != 0; ++log2) {
                operand >>= 1;
            }
            return log2;
        }
        default:
            assert(AVIF_FALSE);
    }
    return 0;
}

static int32_t avifSampleTransformOperation32bTwoOperands(int32_t leftOperand, int32_t rightOperand, uint8_t operator)
{