diff options
Diffstat (limited to 'libvo/mga_common.c')
-rw-r--r-- | libvo/mga_common.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/libvo/mga_common.c b/libvo/mga_common.c index cbf137374e..e25c331a6d 100644 --- a/libvo/mga_common.c +++ b/libvo/mga_common.c @@ -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: |