struct buffer *
disp_get_vid_buffer(struct display *disp)
{
struct buffer *buf = NULL;
if (!list_is_empty(&disp->unlocked)) {
buf = list_last_entry(&disp->unlocked, struct buffer, unlocked);
list_del(&buf->unlocked);
/* barrier.. if we are using GPU blitting, we need to make sure
* that the GPU is finished:
*/
omap_bo_cpu_prep(buf->bo[0], OMAP_GEM_WRITE);
omap_bo_cpu_fini(buf->bo[0], OMAP_GEM_WRITE);
}
void *
capture_loop(void *arg)
{
struct thr_data *data = (struct thr_data *)arg;
struct display *disp = data->disp;
struct v4l2 *v4l2 = data->v4l2;
uint32_t fourcc = data->fourcc;
uint32_t width = data->width, height = data->height;
struct buffer **buffers, *capt, *alg, **alg_bufs;
int ret, i;
int *src, *dst;
int w, h;
buffers = disp_get_vid_buffers(disp, NBUF, fourcc, width, height);
if (!buffers) {
return NULL;
}
alg_bufs = disp_get_vid_buffers(disp, 1, fourcc, width, height);
alg = alg_bufs[0];
ret = v4l2_reqbufs(v4l2, buffers, NBUF);
if (ret) {
return NULL;
}
for (i = 0; i < NBUF; i++) {
v4l2_qbuf(v4l2, buffers[i]);
}
ret = v4l2_streamon(v4l2);
if (ret) {
return NULL;
}
for (i = 1; i < CNT; i++) {
capt = v4l2_dqbuf(v4l2);
src = omap_bo_map(capt->bo[0]);
dst = omap_bo_map(alg->bo[0]);
//printf("debug: %p %p\n", src, dst);
omap_bo_cpu_prep(capt->bo[0], OMAP_GEM_READ);
omap_bo_cpu_prep(alg->bo[0], OMAP_GEM_WRITE);
//printf("bufers prepared\n");
/*
for (h=0; h<720; h++)
for(w=0;w<1280 / 2;w++)
dst[h * 1280 / 2 + w] = src[h * 1280 / 2 + 1280 / 2 - w];
*/
printf("Calling get Image");
//getImage(dst);
//printf("Mirrrored\n");
omap_bo_cpu_fini(capt->bo[0], OMAP_GEM_READ);
omap_bo_cpu_fini(alg->bo[0], OMAP_GEM_WRITE);
ret = disp_post_vid_buffer(disp, alg,
0, 0, width, height);
//printf("Alg buffer posted\n");
ret = disp_post_vid_buffer(disp, capt,
0, 0, width, height);
if (ret) {
ERROR("Post buffer failed");
return NULL;
}
v4l2_qbuf(v4l2, capt);
}
v4l2_streamoff(v4l2);
MSG("Ok!");
return disp;
}