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main: Add a placeholder buffer 

In theory, this should allow clients to connect when the output is turned off.
pull/137/head
Andri Yngvason 2022-04-23 12:06:31 +00:00
parent dfc34bbe9d
commit 57f31be52e
1 changed files with 31 additions and 0 deletions
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31
src/main.c
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@ -495,6 +495,20 @@ bool on_auth(const char* username, const char* password, void* ud)
return true;
}
static struct nvnc_fb* create_placeholder_buffer(uint16_t width, uint16_t height)
{
uint16_t stride = width;
struct nvnc_fb* fb = nvnc_fb_new(width, height, DRM_FORMAT_XRGB8888,
stride);
if (!fb)
return NULL;
size_t size = nvnc_fb_get_pixel_size(fb) * height * stride;
memset(nvnc_fb_get_addr(fb), 0x60, size);
return fb;
}
int init_nvnc(struct wayvnc* self, const char* addr, uint16_t port, bool is_unix)
{
self->nvnc = is_unix ? nvnc_open_unix(addr) : nvnc_open(addr, port);
@ -530,6 +544,23 @@ int init_nvnc(struct wayvnc* self, const char* addr, uint16_t port, bool is_unix
nvnc_set_cut_text_receive_fn(self->nvnc, on_client_cut_text);
struct nvnc_fb* placeholder_fb =
create_placeholder_buffer(self->selected_output->width,
self->selected_output->height);
if (!placeholder_fb) {
log_error("Failed to allocate a placeholder buffer\n");
goto failure;
}
struct pixman_region16 damage;
pixman_region_init_rect(&damage, 0, 0,
nvnc_fb_get_width(placeholder_fb),
nvnc_fb_get_height(placeholder_fb));
nvnc_display_feed_buffer(self->nvnc_display, placeholder_fb, &damage);
pixman_region_fini(&damage);
nvnc_fb_unref(placeholder_fb);
return 0;
failure: