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video_eq support - applied brightness/contrast patch by Brian J. Murrell

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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@5015 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
arpi 2002-03-10 03:37:26 +00:00
parent bf5be677e2
commit 879062aac0
1 changed files with 45 additions and 0 deletions
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45
libvo/mga_common.c
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@ -29,6 +29,42 @@ static void draw_alpha(int x0,int y0, int w,int h, unsigned char* src, unsigned
}
}
static int mga_set_video_eq( const vidix_video_eq_t *info)
{
uint32_t luma;
float factor = 256.0 / 2000;
luma = ((int)(info->brightness * factor) << 16) +
((int)(info->contrast * factor) & 0xFFFF);
if (ioctl(f,MGA_VID_SET_LUMA,luma)) {
perror("Error in mga_vid_config ioctl()");
printf("Could not set luma values in the kernel module!\n");
return -1;
}
return 0;
}
static int mga_get_video_eq( vidix_video_eq_t *info)
{
uint32_t luma;
float factor = 2000.0 / 256;
if (ioctl(f,MGA_VID_GET_LUMA,&luma)) {
perror("Error in mga_vid_config ioctl()");
printf("Could not get luma values from the kernel module!\n");
return -1;
}
info->brightness = (luma >> 16) * factor;
info->cap |= VEQ_CAP_BRIGHTNESS;
info->contrast = (luma & 0xFFFF) * factor;
info->cap |= VEQ_CAP_CONTRAST;
return 0;
}
//static void
//write_slice_g200(uint8_t *y,uint8_t *cr, uint8_t *cb,uint32_t slice_num)
@ -230,9 +266,18 @@ query_format(uint32_t format)
return 0;
}
static void query_vaa(vo_vaa_t *vaa)
{
memset(vaa,0,sizeof(vo_vaa_t));
vaa->get_video_eq = mga_get_video_eq;
vaa->set_video_eq = mga_set_video_eq;
}
static uint32_t control(uint32_t request, void *data, ...)
{
switch (request) {
case VOCTRL_QUERY_VAA:
query_vaa((vo_vaa_t*)data);
return VO_TRUE;
case VOCTRL_QUERY_FORMAT:
return query_format(*((uint32_t*)data));
case VOCTRL_GET_IMAGE: