Paul B Mahol <one...@gmail.com> writes:
> On 1/10/12, Maans Rullgaard <m...@mansr.com> wrote:
>> Paul B Mahol <one...@gmail.com> writes:
>>
>>> ---
>>> libswscale/rgb2rgb.c | 13 +++++++++++++
>>> libswscale/rgb2rgb.h | 1 +
>>> libswscale/swscale_unscaled.c | 1 +
>>> 3 files changed, 15 insertions(+), 0 deletions(-)
>>>
>>> diff --git a/libswscale/rgb2rgb.c b/libswscale/rgb2rgb.c
>>> index 0f07e57..4d54ac5 100644
>>> --- a/libswscale/rgb2rgb.c
>>> +++ b/libswscale/rgb2rgb.c
>>> @@ -282,6 +282,19 @@ void rgb15tobgr15(const uint8_t *src, uint8_t *dst,
>>> int src_size)
>>> }
>>> }
>>>
>>> +void rgb12tobgr12(const uint8_t *src, uint8_t *dst, int src_size)
>>> +{
>>> + int i;
>>> + int num_pixels = src_size >> 1;
>>> +
>>> + for (i = 0; i < num_pixels; i++) {
>>> + unsigned br;
>>> + unsigned rgb = ((const uint16_t *)src)[i];
>>> + br = rgb & 0x0F0F;
>>> + ((uint16_t *)dst)[i] = (br >> 8) | (rgb & 0x00F0) | (br << 8);
>>> + }
>>> +}
>>
>> Why so complicated?
>>
>> I also don't like the look of those pointer casts.
>
> I don't follow.
Can someone explain in more convoluted terms what I mean? Perhaps then
there will be something to "follow" for those who like things complicated.
--
Måns Rullgård
m...@mansr.com
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