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clients/simple-dmabuf-v4l: Add 'weston-direct-display' protocol

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Makes use of weston-direct-display protocol to pass the dmabuf
straight to the display-controller if such a path is possible.

Removes the Y_INVERT flag in case that was passed, and notifies
the user about it, as the weston implementation would force going
through the renderer when passing the Y_INVERT flag, but in the same
time direct-display avoids any GPU import so having them both in the
same time would result into weston refusing the create a buffer.

Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
This commit is contained in:
Marius Vlad 2019-11-21 00:28:31 +02:00 committed by Pekka Paalanen
parent b6d1509d63
commit ab2c72b05c
2 changed files with 29 additions and 3 deletions
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2
clients/meson.build
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@ -81,6 +81,8 @@ simple_clients = [
linux_dmabuf_unstable_v1_protocol_c,
xdg_shell_client_protocol_h,
xdg_shell_protocol_c,
weston_direct_display_client_protocol_h,
weston_direct_display_protocol_c,
fullscreen_shell_unstable_v1_client_protocol_h,
fullscreen_shell_unstable_v1_protocol_c,
],

30
clients/simple-dmabuf-v4l.c
View File

@ -51,11 +51,13 @@
#include "xdg-shell-client-protocol.h"
#include "fullscreen-shell-unstable-v1-client-protocol.h"
#include "linux-dmabuf-unstable-v1-client-protocol.h"
#include "weston-direct-display-client-protocol.h"
#include "shared/helpers.h"
#define CLEAR(x) memset(&(x), 0, sizeof(x))
#define OPT_FLAG_INVERT (1 << 0)
#define OPT_FLAG_DIRECT_DISPLAY (1 << 1)
static void
redraw(void *data, struct wl_callback *callback, uint32_t time);
@ -107,6 +109,7 @@ struct display {
struct xdg_wm_base *wm_base;
struct zwp_fullscreen_shell_v1 *fshell;
struct zwp_linux_dmabuf_v1 *dmabuf;
struct weston_direct_display_v1 *direct_display;
bool requested_format_found;
uint32_t opts;
@ -386,6 +389,17 @@ create_dmabuf_buffer(struct display *display, struct buffer *buffer)
flags |= ZWP_LINUX_BUFFER_PARAMS_V1_FLAGS_Y_INVERT;
params = zwp_linux_dmabuf_v1_create_params(display->dmabuf);
if ((display->opts & OPT_FLAG_DIRECT_DISPLAY) && display->direct_display) {
weston_direct_display_v1_enable(display->direct_display, params);
if (display->opts & OPT_FLAG_INVERT) {
flags &= ~ZWP_LINUX_BUFFER_PARAMS_V1_FLAGS_Y_INVERT;
fprintf(stdout, "dmabuf y-inverted attribute flag was removed"
", as display-direct flag was set\n");
}
}
for (i = 0; i < display->format.num_planes; ++i)
zwp_linux_buffer_params_v1_add(params,
buffer->dmabuf_fds[i],
@ -841,6 +855,9 @@ registry_handle_global(void *data, struct wl_registry *registry,
id, &zwp_linux_dmabuf_v1_interface, 3);
zwp_linux_dmabuf_v1_add_listener(d->dmabuf, &dmabuf_listener,
d);
} else if (strcmp(interface, "weston_direct_display_v1") == 0) {
d->direct_display = wl_registry_bind(registry,
id, &weston_direct_display_v1_interface, 1);
}
}
@ -916,7 +933,7 @@ destroy_display(struct display *display)
static void
usage(const char *argv0)
{
printf("Usage: %s [-v v4l2_device] [-f v4l2_format] [-d drm_format] [-i|--y-invert]\n"
printf("Usage: %s [-v v4l2_device] [-f v4l2_format] [-d drm_format] [-i|--y-invert] [-g|--d-display]\n"
"\n"
"The default V4L2 device is /dev/video0\n"
"\n"
@ -929,7 +946,10 @@ usage(const char *argv0)
"Flags:\n"
"- y-invert force the image to be y-flipped;\n note will be "
"automatically added if we detect if the camera sensor is "
"y-flipped\n", argv0);
"y-flipped\n"
"- d-display skip importing dmabuf-based buffer into the GPU\n "
"and attempt pass the buffer straight to the display controller\n",
argv0);
printf("\n"
"How to set up Vivid the virtual video driver for testing:\n"
@ -973,11 +993,12 @@ main(int argc, char **argv)
{ "v4l2-format", required_argument, NULL, 'f' },
{ "drm-format", required_argument, NULL, 'd' },
{ "y-invert", no_argument, NULL, 'i' },
{ "d-display", no_argument, NULL, 'g' },
{ "help", no_argument, NULL, 'h' },
{ 0, 0, NULL, 0 }
};
while ((c = getopt_long(argc, argv, "hiv:d:f:", long_options,
while ((c = getopt_long(argc, argv, "hiv:d:f:g", long_options,
&opt_index)) != -1) {
switch (c) {
case 'v':
@ -992,6 +1013,9 @@ main(int argc, char **argv)
case 'i':
opts_flags |= OPT_FLAG_INVERT;
break;
case 'g':
opts_flags |= OPT_FLAG_DIRECT_DISPLAY;
break;
default:
case 'h':
usage(argv[0]);