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vo_drm: support controlling swapchain depth using swapchain-depth option

This commit is contained in:
Anton Kindestam 2019-09-28 11:17:48 +02:00 committed by Jan Ekström
parent 6290420380
commit 0c8eb80e98
1 changed files with 13 additions and 10 deletions
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23
video/out/vo_drm.c
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@ -46,9 +46,6 @@
#define BITS_PER_PIXEL 32
#define USE_MASTER 0
#define BUF_COUNT 4
#define SWAPCHAIN_DEPTH 3
struct framebuffer {
uint32_t width;
uint32_t height;
@ -75,7 +72,9 @@ struct priv {
bool vt_switcher_active;
struct vt_switcher vt_switcher;
struct framebuffer bufs[BUF_COUNT];
int swapchain_depth;
unsigned int buf_count;
struct framebuffer *bufs;
int front_buf;
bool active;
bool waiting_for_flip;
@ -175,13 +174,15 @@ static bool fb_setup_buffers(struct vo *vo)
{
struct priv *p = vo->priv;
p->bufs = talloc_zero_array(p, struct framebuffer, p->buf_count);
p->front_buf = 0;
for (unsigned int i = 0; i < BUF_COUNT; i++) {
for (unsigned int i = 0; i < p->buf_count; i++) {
p->bufs[i].width = p->kms->mode.mode.hdisplay;
p->bufs[i].height = p->kms->mode.mode.vdisplay;
}
for (unsigned int i = 0; i < BUF_COUNT; i++) {
for (unsigned int i = 0; i < p->buf_count; i++) {
if (!fb_setup_single(vo, p->kms->fd, &p->bufs[i])) {
MP_ERR(vo, "Cannot create framebuffer\n");
for (unsigned int j = 0; j < i; j++) {
@ -327,7 +328,7 @@ static int reconfig(struct vo *vo, struct mp_image_params *params)
p->last_input = NULL;
struct framebuffer *buf = p->bufs;
for (unsigned int i = 0; i < BUF_COUNT; i++)
for (unsigned int i = 0; i < p->buf_count; i++)
memset(buf[i].map, 0, buf[i].size);
if (mp_sws_reinit(p->sws) < 0)
@ -365,7 +366,7 @@ static struct framebuffer *get_new_fb(struct vo *vo)
struct priv *p = vo->priv;
p->front_buf++;
p->front_buf %= BUF_COUNT;
p->front_buf %= p->buf_count;
return &p->bufs[p->front_buf];
}
@ -512,7 +513,7 @@ static void flip_page(struct vo *vo)
if (!p->active)
return;
while (drain || p->fb_queue_len > SWAPCHAIN_DEPTH) {
while (drain || p->fb_queue_len > p->swapchain_depth) {
if (p->waiting_for_flip) {
wait_on_flip(vo);
swapchain_step(vo);
@ -539,7 +540,7 @@ static void uninit(struct vo *vo)
}
if (p->kms) {
for (unsigned int i = 0; i < BUF_COUNT; i++)
for (unsigned int i = 0; i < p->buf_count; i++)
fb_destroy(p->kms->fd, &p->bufs[i]);
kms_destroy(p->kms);
p->kms = NULL;
@ -585,6 +586,8 @@ static int preinit(struct vo *vo)
p->imgfmt = IMGFMT_XRGB8888;
}
p->swapchain_depth = vo->opts->swapchain_depth;
p->buf_count = p->swapchain_depth + 1;
if (!fb_setup_buffers(vo)) {
MP_ERR(vo, "Failed to set up buffers.\n");
goto err;