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.
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