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Merge branch 'CR_1799_v4l2test_Kevin.xie' into 'jh7110-devel'

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CR_1799 v4l2test: Solve blurred screen problem in 45 or 60 fps.

See merge request sdk/buildroot!44
This commit is contained in:
andy.hu
2022-08-19 07:07:58 +00:00
parent 7b57253399 a2d183cea1
commit f1e797a077
4 changed files with 44 additions and 16 deletions
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package/starfive/v4l2_test/v4l2_test.c
+31 -9
View File
@@ -42,6 +42,17 @@ static const enum_value_t g_iomthd_values[] = {
{ IO_METHOD_READ, "READ"}
};
//Only support for using drm mmap dmabuf 0 & 1
typedef struct {
volatile uint8_t readable[2];
volatile uint8_t foreground_index;
} pingpong_buffer_index_t;
static pingpong_buffer_index_t g_pp_index = {
.readable = { 0, 0 },
.foreground_index = 0,
};
typedef struct {
V4l2Param_t v4l2_param;
FBParam_t fb_param;
@@ -61,7 +72,6 @@ ConfigParam_t *gp_cfg_param = NULL;
static int g_drm_buf_next_idx = -1;
static int g_drm_buf_curr_idx = 0;
static int drm_buf_id = 0;
static void alloc_default_config(ConfigParam_t **pp_data)
{
@@ -407,15 +417,15 @@ static int frameRead(void)
struct v4l2_buffer buf;
V4l2Param_t *pv4l2_param = &gp_cfg_param->v4l2_param;
uint8_t *dst = NULL;
int next_index;
int background_index;
if (STF_DISP_FB == gp_cfg_param->disp_type) {
dst = gp_cfg_param->fb_param.screen_buf;
} else if (STF_DISP_DRM == gp_cfg_param->disp_type &&
IO_METHOD_DMABUF != gp_cfg_param->io_mthd) {
background_index = !g_pp_index.foreground_index;
//Get ready to compose the backgound buffer
next_index = (drm_buf_id + 1) % 2;
dst = gp_cfg_param->drm_param.dev_head->bufs[next_index].buf;
dst = gp_cfg_param->drm_param.dev_head->bufs[background_index].buf;
} else {
LOG(STF_LEVEL_LOG, "Not display\n");
}
@@ -450,19 +460,20 @@ static int frameRead(void)
buf.index, gp_cfg_param->v4l2_param.n_buffers);
imageProcess((uint8_t *)(pv4l2_param->pBuffers[buf.index].start), dst, buf.timestamp);
if (STF_DISP_DRM == gp_cfg_param->disp_type) {
drm_buf_id = next_index; // Move background buffer to foreground
g_pp_index.readable[background_index] = 1;
static int first_frame = 1;
if(first_frame) {
drm_dev_t* dev = gp_cfg_param->drm_param.dev_head;
g_pp_index.foreground_index = background_index;
/* First buffer to DRM */
if (drmModeSetCrtc(gp_cfg_param->drm_param.fd,
dev->crtc_id, dev->bufs[drm_buf_id].fb_id,
dev->crtc_id, dev->bufs[g_pp_index.foreground_index].fb_id,
0, 0, &dev->conn_id, 1, &dev->mode)) {
fatal("drmModeSetCrtc() failed");
}
/* First flip */
drmModePageFlip(gp_cfg_param->drm_param.fd,
dev->crtc_id, dev->bufs[drm_buf_id].fb_id,
dev->crtc_id, dev->bufs[g_pp_index.foreground_index].fb_id,
DRM_MODE_PAGE_FLIP_EVENT, dev);
first_frame = 0;
}
@@ -552,12 +563,23 @@ static void page_flip_handler(int fd, unsigned int frame,
DRM_MODE_PAGE_FLIP_EVENT, dev);
}
static uint8_t check_background_buf_readable(void)
{
return g_pp_index.readable[!g_pp_index.foreground_index];
}
static void mmap_page_flip_handler(int fd, unsigned int frame,
unsigned int sec, unsigned int usec,
void *data)
{
if(check_background_buf_readable()) {
//Move background buffer to foreground
g_pp_index.readable[g_pp_index.foreground_index] = 0;
g_pp_index.foreground_index = !g_pp_index.foreground_index;
}
drmModePageFlip(gp_cfg_param->drm_param.fd, gp_cfg_param->drm_param.dev_head->crtc_id,
gp_cfg_param->drm_param.dev_head->bufs[drm_buf_id].fb_id,
gp_cfg_param->drm_param.dev_head->bufs[g_pp_index.foreground_index].fb_id,
DRM_MODE_PAGE_FLIP_EVENT, gp_cfg_param->drm_param.dev_head);
}
@@ -999,7 +1021,7 @@ int main(int argc, char **argv)
}
// prepare and start v4l2 capturing
sft_v4l2_prepare_capturing(&gp_cfg_param->v4l2_param, gp_cfg_param->dmabufs, BUFCOUNT);
sft_v4l2_prepare_capturing(&gp_cfg_param->v4l2_param, gp_cfg_param->dmabufs, gp_cfg_param->disp_type);
sft_v4l2_start_capturing(&(gp_cfg_param->v4l2_param));
// process frames