Re: [PATCH 09/12] utils: fix implicit float conversions

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 23/04/2020 10:44, Rosen Penev wrote:
> 
> 
>> On Apr 23, 2020, at 1:36 AM, Hans Verkuil <hverkuil@xxxxxxxxx> wrote:
>>
>> On 22/04/2020 02:37, Rosen Penev wrote:
>>> Found with -Wfloat-conversion
>>>
>>> Signed-off-by: Rosen Penev <rosenp@xxxxxxxxx>
>>> ---
>>> utils/cec-ctl/cec-ctl.cpp                   | 4 ++--
>>> utils/cec-ctl/cec-pin.cpp                   | 2 +-
>>> utils/v4l2-compliance/v4l2-test-buffers.cpp | 2 +-
>>> utils/v4l2-ctl/v4l2-ctl-misc.cpp            | 4 ++--
>>> utils/v4l2-ctl/v4l2-ctl-streaming.cpp       | 2 +-
>>> utils/v4l2-ctl/v4l2-ctl-subdev.cpp          | 2 +-
>>> 6 files changed, 8 insertions(+), 8 deletions(-)
>>>
>>> diff --git a/utils/cec-ctl/cec-ctl.cpp b/utils/cec-ctl/cec-ctl.cpp
>>> index f4133494..f0e31aca 100644
>>> --- a/utils/cec-ctl/cec-ctl.cpp
>>> +++ b/utils/cec-ctl/cec-ctl.cpp
>>> @@ -1507,8 +1507,8 @@ static void stress_test_power_cycle(struct node &node, unsigned cnt,
>>>    srandom(seed);
>>>
>>>    for (;;) {
>>> -        unsigned usecs1 = mod_usleep ? random() % mod_usleep : sleep_before_on * 1000000;
>>> -        unsigned usecs2 = mod_usleep ? random() % mod_usleep : sleep_before_off * 1000000;
>>> +        unsigned usecs1 = mod_usleep ? random() % mod_usleep : (unsigned)(sleep_before_on * 1000000);
>>> +        unsigned usecs2 = mod_usleep ? random() % mod_usleep : (unsigned)(sleep_before_off * 1000000);
>>
>> Shouldn't this be static_cast<unsigned>? Same elsewhere.
> Sure, but that’s beyond this patch. It should be unsigned int actually. Implicit int is bad.

Why is that beyond this patch?

I never understood why unsigned int is somehow magically better than unsigned.

In any case, just keep unsigned since that's consistent with the existing practice
in these sources.

Regards,

	Hans

>>
>> Regards,
>>
>>    Hans
>>
>>>
>>>        usecs1 += min_usleep;
>>>        usecs2 += min_usleep;
>>> diff --git a/utils/cec-ctl/cec-pin.cpp b/utils/cec-ctl/cec-pin.cpp
>>> index 0322ad5e..10abea37 100644
>>> --- a/utils/cec-ctl/cec-pin.cpp
>>> +++ b/utils/cec-ctl/cec-pin.cpp
>>> @@ -261,7 +261,7 @@ static void cec_pin_rx_data_bit_was_low(__u64 ev_ts, __u64 usecs, __u64 usecs_mi
>>>     * If the low drive starts at the end of a 0 bit, then the actual
>>>     * maximum time that the bus can be low is the two summed.
>>>     */
>>> -    const unsigned max_low_drive = CEC_TIM_LOW_DRIVE_ERROR_MAX +
>>> +    const unsigned max_low_drive = (unsigned)CEC_TIM_LOW_DRIVE_ERROR_MAX +
>>>        CEC_TIM_DATA_BIT_0_LOW_MAX + CEC_TIM_MARGIN;
>>>
>>>    low_usecs = usecs;
>>> diff --git a/utils/v4l2-compliance/v4l2-test-buffers.cpp b/utils/v4l2-compliance/v4l2-test-buffers.cpp
>>> index 93df7034..87c2e523 100644
>>> --- a/utils/v4l2-compliance/v4l2-test-buffers.cpp
>>> +++ b/utils/v4l2-compliance/v4l2-test-buffers.cpp
>>> @@ -2597,7 +2597,7 @@ static void streamFmt(struct node *node, __u32 pixelformat, __u32 w, __u32 h,
>>>    char hz[32] = "";
>>>
>>>    if (!frame_count)
>>> -        frame_count = f ? 1.0 / fract2f(f) : 10;
>>> +        frame_count = f ? (unsigned)(1.0f / fract2f(f)) : 10;
>>>    node->g_fmt(fmt);
>>>    fmt.s_pixelformat(pixelformat);
>>>    fmt.s_width(w);
>>> diff --git a/utils/v4l2-ctl/v4l2-ctl-misc.cpp b/utils/v4l2-ctl/v4l2-ctl-misc.cpp
>>> index cb933217..2851886a 100644
>>> --- a/utils/v4l2-ctl/v4l2-ctl-misc.cpp
>>> +++ b/utils/v4l2-ctl/v4l2-ctl-misc.cpp
>>> @@ -320,7 +320,7 @@ void misc_set(cv4l_fd &_fd)
>>>        parm.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
>>>        parm.parm.capture.timeperframe.numerator = 1000;
>>>        parm.parm.capture.timeperframe.denominator =
>>> -            fps * parm.parm.capture.timeperframe.numerator;
>>> +            (uint32_t)(fps * parm.parm.capture.timeperframe.numerator);
>>>
>>>        if (doioctl(fd, VIDIOC_S_PARM, &parm) == 0) {
>>>            struct v4l2_fract *tf = &parm.parm.capture.timeperframe;
>>> @@ -338,7 +338,7 @@ void misc_set(cv4l_fd &_fd)
>>>        parm.type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
>>>        parm.parm.output.timeperframe.numerator = 1000;
>>>        parm.parm.output.timeperframe.denominator =
>>> -            output_fps * parm.parm.output.timeperframe.numerator;
>>> +            (uint32_t)(output_fps * parm.parm.output.timeperframe.numerator);
>>>
>>>        if (doioctl(fd, VIDIOC_S_PARM, &parm) == 0) {
>>>            struct v4l2_fract *tf = &parm.parm.output.timeperframe;
>>> diff --git a/utils/v4l2-ctl/v4l2-ctl-streaming.cpp b/utils/v4l2-ctl/v4l2-ctl-streaming.cpp
>>> index 066a336a..6981a3cc 100644
>>> --- a/utils/v4l2-ctl/v4l2-ctl-streaming.cpp
>>> +++ b/utils/v4l2-ctl/v4l2-ctl-streaming.cpp
>>> @@ -569,7 +569,7 @@ static void print_concise_buffer(FILE *f, cv4l_buffer &buf, cv4l_fmt &fmt,
>>>    if (!skip_ts && (buf.g_flags() & V4L2_BUF_FLAG_TIMESTAMP_MASK) != V4L2_BUF_FLAG_TIMESTAMP_COPY) {
>>>        double ts = buf.g_timestamp().tv_sec + buf.g_timestamp().tv_usec / 1000000.0;
>>>        fprintf(f, " ts: %.06f", ts);
>>> -        if (last_ts)
>>> +        if (last_ts <= 0.0)
>>>            fprintf(f, " delta: %.03f ms", (ts - last_ts) * 1000.0);
>>>        last_ts = ts;
>>>
>>> diff --git a/utils/v4l2-ctl/v4l2-ctl-subdev.cpp b/utils/v4l2-ctl/v4l2-ctl-subdev.cpp
>>> index 747f1699..f1223084 100644
>>> --- a/utils/v4l2-ctl/v4l2-ctl-subdev.cpp
>>> +++ b/utils/v4l2-ctl/v4l2-ctl-subdev.cpp
>>> @@ -487,7 +487,7 @@ void subdev_set(cv4l_fd &_fd)
>>>            exit(1);
>>>        }
>>>        fival.interval.numerator = 1000;
>>> -        fival.interval.denominator = set_fps * fival.interval.numerator;
>>> +        fival.interval.denominator = (uint32_t)(set_fps * fival.interval.numerator);
>>>        printf("Note: --set-subdev-fps is only for testing.\n"
>>>               "Normally media-ctl is used to configure the video pipeline.\n");
>>>        printf("ioctl: VIDIOC_SUBDEV_S_FRAME_INTERVAL (pad=%u)\n", fival.pad);
>>>
>>




[Index of Archives]     [Linux Input]     [Video for Linux]     [Gstreamer Embedded]     [Mplayer Users]     [Linux USB Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [Yosemite Backpacking]

  Powered by Linux