Initial commit
This commit is contained in:
commit
f40f17a588
|
@ -0,0 +1,91 @@
|
|||
# Created by .ignore support plugin (hsz.mobi)
|
||||
### C template
|
||||
# Prerequisites
|
||||
*.d
|
||||
|
||||
# Object files
|
||||
*.o
|
||||
*.ko
|
||||
*.obj
|
||||
*.elf
|
||||
|
||||
# Linker output
|
||||
*.ilk
|
||||
*.map
|
||||
*.exp
|
||||
|
||||
# Precompiled Headers
|
||||
*.gch
|
||||
*.pch
|
||||
|
||||
# Libraries
|
||||
*.lib
|
||||
*.a
|
||||
*.la
|
||||
*.lo
|
||||
|
||||
# Shared objects (inc. Windows DLLs)
|
||||
*.dll
|
||||
*.so
|
||||
*.so.*
|
||||
*.dylib
|
||||
|
||||
# Executables
|
||||
*.exe
|
||||
*.out
|
||||
*.app
|
||||
*.i*86
|
||||
*.x86_64
|
||||
*.hex
|
||||
|
||||
# Debug files
|
||||
*.dSYM/
|
||||
*.su
|
||||
*.idb
|
||||
*.pdb
|
||||
|
||||
# Kernel Module Compile Results
|
||||
*.mod*
|
||||
*.cmd
|
||||
.tmp_versions/
|
||||
modules.order
|
||||
Module.symvers
|
||||
Mkfile.old
|
||||
dkms.conf
|
||||
|
||||
### C template
|
||||
# Prerequisites
|
||||
|
||||
# Object files
|
||||
|
||||
# Linker output
|
||||
|
||||
# Precompiled Headers
|
||||
|
||||
# Libraries
|
||||
|
||||
# Shared objects (inc. Windows DLLs)
|
||||
|
||||
# Executables
|
||||
|
||||
# Debug files
|
||||
|
||||
# Kernel Module Compile Results
|
||||
|
||||
### CMake template
|
||||
CMakeLists.txt.user
|
||||
CMakeCache.txt
|
||||
CMakeFiles
|
||||
CMakeScripts
|
||||
Testing
|
||||
Makefile
|
||||
cmake_install.cmake
|
||||
install_manifest.txt
|
||||
compile_commands.json
|
||||
CTestTestfile.cmake
|
||||
_deps
|
||||
|
||||
/.idea
|
||||
/cmake-build-debug
|
||||
/cmake-build-release
|
||||
*~
|
|
@ -0,0 +1,19 @@
|
|||
cmake_minimum_required(VERSION 3.14)
|
||||
project(GTKCamera C)
|
||||
|
||||
set(CMAKE_C_STANDARD 11)
|
||||
|
||||
# Use the package PkgConfig to detect GTK+ headers/library files
|
||||
FIND_PACKAGE(PkgConfig REQUIRED)
|
||||
PKG_CHECK_MODULES(GTK3 REQUIRED gtk+-3.0)
|
||||
|
||||
# Setup CMake to use GTK+, tell the compiler where to look for headers
|
||||
# and to the linker where to look for libraries
|
||||
INCLUDE_DIRECTORIES(${GTK3_INCLUDE_DIRS})
|
||||
LINK_DIRECTORIES(${GTK3_LIBRARY_DIRS})
|
||||
|
||||
# Add other flags to the compiler
|
||||
ADD_DEFINITIONS(${GTK3_CFLAGS_OTHER})
|
||||
|
||||
add_executable(GTKCamera main.c)
|
||||
target_link_libraries(GTKCamera ${GTK3_LIBRARIES})
|
|
@ -0,0 +1,3 @@
|
|||
.black {
|
||||
background: #000000;
|
||||
}
|
|
@ -0,0 +1,159 @@
|
|||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<!-- Generated with glade 3.22.1 -->
|
||||
<interface>
|
||||
<requires lib="gtk+" version="3.20"/>
|
||||
<object class="GtkWindow" id="window">
|
||||
<property name="can_focus">False</property>
|
||||
<property name="title" translatable="yes">Camera</property>
|
||||
<child>
|
||||
<placeholder/>
|
||||
</child>
|
||||
<child>
|
||||
<object class="GtkStack" id="main_stack">
|
||||
<property name="visible">True</property>
|
||||
<property name="can_focus">False</property>
|
||||
<child>
|
||||
<object class="GtkBox">
|
||||
<property name="visible">True</property>
|
||||
<property name="can_focus">False</property>
|
||||
<property name="orientation">vertical</property>
|
||||
<child>
|
||||
<object class="GtkBox" id="preview_box">
|
||||
<property name="visible">True</property>
|
||||
<property name="can_focus">False</property>
|
||||
<property name="orientation">vertical</property>
|
||||
<child>
|
||||
<object class="GtkImage" id="preview">
|
||||
<property name="visible">True</property>
|
||||
<property name="can_focus">False</property>
|
||||
<property name="stock">gtk-missing-image</property>
|
||||
</object>
|
||||
<packing>
|
||||
<property name="expand">True</property>
|
||||
<property name="fill">True</property>
|
||||
<property name="position">0</property>
|
||||
</packing>
|
||||
</child>
|
||||
<style>
|
||||
<class name="black"/>
|
||||
</style>
|
||||
</object>
|
||||
<packing>
|
||||
<property name="expand">True</property>
|
||||
<property name="fill">True</property>
|
||||
<property name="position">0</property>
|
||||
</packing>
|
||||
</child>
|
||||
<child>
|
||||
<object class="GtkBox" id="controls_box">
|
||||
<property name="visible">True</property>
|
||||
<property name="can_focus">False</property>
|
||||
<child>
|
||||
<object class="GtkBox">
|
||||
<property name="visible">True</property>
|
||||
<property name="can_focus">False</property>
|
||||
<property name="margin_top">8</property>
|
||||
<property name="margin_bottom">8</property>
|
||||
<property name="spacing">10</property>
|
||||
<child>
|
||||
<object class="GtkButton">
|
||||
<property name="visible">True</property>
|
||||
<property name="can_focus">True</property>
|
||||
<property name="receives_default">True</property>
|
||||
<child>
|
||||
<object class="GtkImage">
|
||||
<property name="visible">True</property>
|
||||
<property name="can_focus">False</property>
|
||||
<property name="stock">gtk-preferences</property>
|
||||
</object>
|
||||
</child>
|
||||
</object>
|
||||
<packing>
|
||||
<property name="expand">False</property>
|
||||
<property name="fill">True</property>
|
||||
<property name="position">0</property>
|
||||
</packing>
|
||||
</child>
|
||||
<child>
|
||||
<placeholder/>
|
||||
</child>
|
||||
<child>
|
||||
<placeholder/>
|
||||
</child>
|
||||
</object>
|
||||
<packing>
|
||||
<property name="expand">True</property>
|
||||
<property name="fill">True</property>
|
||||
<property name="padding">10</property>
|
||||
<property name="position">0</property>
|
||||
</packing>
|
||||
</child>
|
||||
<child type="center">
|
||||
<object class="GtkButton" id="shutter">
|
||||
<property name="width_request">48</property>
|
||||
<property name="height_request">48</property>
|
||||
<property name="visible">True</property>
|
||||
<property name="can_focus">True</property>
|
||||
<property name="receives_default">True</property>
|
||||
<property name="always_show_image">True</property>
|
||||
<child>
|
||||
<object class="GtkImage">
|
||||
<property name="visible">True</property>
|
||||
<property name="can_focus">False</property>
|
||||
<property name="stock">gtk-cdrom</property>
|
||||
</object>
|
||||
</child>
|
||||
<style>
|
||||
<class name="suggested-action"/>
|
||||
<class name="circular"/>
|
||||
</style>
|
||||
</object>
|
||||
<packing>
|
||||
<property name="expand">False</property>
|
||||
<property name="fill">True</property>
|
||||
<property name="position">2</property>
|
||||
</packing>
|
||||
</child>
|
||||
<child>
|
||||
<object class="GtkBox">
|
||||
<property name="visible">True</property>
|
||||
<property name="can_focus">False</property>
|
||||
<property name="margin_top">8</property>
|
||||
<property name="margin_bottom">8</property>
|
||||
<property name="spacing">10</property>
|
||||
<child>
|
||||
<placeholder/>
|
||||
</child>
|
||||
<child>
|
||||
<placeholder/>
|
||||
</child>
|
||||
<child>
|
||||
<placeholder/>
|
||||
</child>
|
||||
</object>
|
||||
<packing>
|
||||
<property name="expand">True</property>
|
||||
<property name="fill">True</property>
|
||||
<property name="padding">10</property>
|
||||
<property name="pack_type">end</property>
|
||||
<property name="position">1</property>
|
||||
</packing>
|
||||
</child>
|
||||
</object>
|
||||
<packing>
|
||||
<property name="expand">False</property>
|
||||
<property name="fill">True</property>
|
||||
<property name="padding">10</property>
|
||||
<property name="position">1</property>
|
||||
</packing>
|
||||
</child>
|
||||
</object>
|
||||
<packing>
|
||||
<property name="name">page0</property>
|
||||
<property name="title" translatable="yes">page0</property>
|
||||
</packing>
|
||||
</child>
|
||||
</object>
|
||||
</child>
|
||||
</object>
|
||||
</interface>
|
|
@ -0,0 +1,435 @@
|
|||
#include <errno.h>
|
||||
#include <fcntl.h>
|
||||
#include <linux/videodev2.h>
|
||||
#include <sys/ioctl.h>
|
||||
#include <sys/mman.h>
|
||||
#include <asm/errno.h>
|
||||
#include <gtk/gtk.h>
|
||||
|
||||
#define CLEAR(x) memset(&(x), 0, sizeof(x))
|
||||
|
||||
enum io_method {
|
||||
IO_METHOD_READ,
|
||||
IO_METHOD_MMAP,
|
||||
IO_METHOD_USERPTR,
|
||||
};
|
||||
|
||||
struct buffer {
|
||||
void *start;
|
||||
size_t length;
|
||||
};
|
||||
|
||||
|
||||
struct buffer *buffers;
|
||||
static unsigned int n_buffers;
|
||||
static char *dev_name;
|
||||
static enum io_method io = IO_METHOD_MMAP;
|
||||
static int force_format_width = 640;
|
||||
static int force_format_height = 480;
|
||||
GObject *preview_image;
|
||||
|
||||
|
||||
static int xioctl(int fd, int request, void *arg) {
|
||||
int r;
|
||||
do r = ioctl(fd, request, arg);
|
||||
while (-1 == r && EINTR == errno);
|
||||
return r;
|
||||
}
|
||||
|
||||
static void errno_exit(const char *s) {
|
||||
fprintf(stderr, "%s error %d, %s\\n", s, errno, strerror(errno));
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
static void start_capturing(int fd) {
|
||||
unsigned int i;
|
||||
enum v4l2_buf_type type;
|
||||
|
||||
switch (io) {
|
||||
case IO_METHOD_READ:
|
||||
/* Nothing to do. */
|
||||
break;
|
||||
|
||||
case IO_METHOD_MMAP:
|
||||
for (i = 0; i < n_buffers; ++i) {
|
||||
struct v4l2_buffer buf;
|
||||
|
||||
CLEAR(buf);
|
||||
buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
||||
buf.memory = V4L2_MEMORY_MMAP;
|
||||
buf.index = i;
|
||||
|
||||
if (-1 == xioctl(fd, VIDIOC_QBUF, &buf))
|
||||
errno_exit("VIDIOC_QBUF");
|
||||
}
|
||||
type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
||||
if (-1 == xioctl(fd, VIDIOC_STREAMON, &type))
|
||||
errno_exit("VIDIOC_STREAMON");
|
||||
break;
|
||||
|
||||
case IO_METHOD_USERPTR:
|
||||
for (i = 0; i < n_buffers; ++i) {
|
||||
struct v4l2_buffer buf;
|
||||
|
||||
CLEAR(buf);
|
||||
buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
||||
buf.memory = V4L2_MEMORY_USERPTR;
|
||||
buf.index = i;
|
||||
buf.m.userptr = (unsigned long) buffers[i].start;
|
||||
buf.length = buffers[i].length;
|
||||
|
||||
if (-1 == xioctl(fd, VIDIOC_QBUF, &buf))
|
||||
errno_exit("VIDIOC_QBUF");
|
||||
}
|
||||
type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
||||
if (-1 == xioctl(fd, VIDIOC_STREAMON, &type))
|
||||
errno_exit("VIDIOC_STREAMON");
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static void init_mmap(int fd) {
|
||||
struct v4l2_requestbuffers req;
|
||||
|
||||
CLEAR(req);
|
||||
|
||||
req.count = 4;
|
||||
req.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
||||
req.memory = V4L2_MEMORY_MMAP;
|
||||
|
||||
if (-1 == xioctl(fd, VIDIOC_REQBUFS, &req)) {
|
||||
if (EINVAL == errno) {
|
||||
fprintf(stderr, "%s does not support "
|
||||
"memory mappingn", dev_name);
|
||||
exit(EXIT_FAILURE);
|
||||
} else {
|
||||
errno_exit("VIDIOC_REQBUFS");
|
||||
}
|
||||
}
|
||||
|
||||
if (req.count < 2) {
|
||||
fprintf(stderr, "Insufficient buffer memory on %s\\n",
|
||||
dev_name);
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
buffers = calloc(req.count, sizeof(*buffers));
|
||||
|
||||
if (!buffers) {
|
||||
fprintf(stderr, "Out of memory\\n");
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
for (n_buffers = 0; n_buffers < req.count; ++n_buffers) {
|
||||
struct v4l2_buffer buf;
|
||||
|
||||
CLEAR(buf);
|
||||
|
||||
buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
||||
buf.memory = V4L2_MEMORY_MMAP;
|
||||
buf.index = n_buffers;
|
||||
|
||||
if (-1 == xioctl(fd, VIDIOC_QUERYBUF, &buf))
|
||||
errno_exit("VIDIOC_QUERYBUF");
|
||||
|
||||
buffers[n_buffers].length = buf.length;
|
||||
buffers[n_buffers].start =
|
||||
mmap(NULL /* start anywhere */,
|
||||
buf.length,
|
||||
PROT_READ | PROT_WRITE /* required */,
|
||||
MAP_SHARED /* recommended */,
|
||||
fd, buf.m.offset);
|
||||
|
||||
if (MAP_FAILED == buffers[n_buffers].start)
|
||||
errno_exit("mmap");
|
||||
}
|
||||
}
|
||||
|
||||
static void init_device(int fd) {
|
||||
struct v4l2_capability cap;
|
||||
struct v4l2_cropcap cropcap;
|
||||
struct v4l2_crop crop;
|
||||
struct v4l2_format fmt;
|
||||
unsigned int min;
|
||||
|
||||
if (-1 == xioctl(fd, VIDIOC_QUERYCAP, &cap)) {
|
||||
if (EINVAL == errno) {
|
||||
fprintf(stderr, "%s is no V4L2 device\\n",
|
||||
dev_name);
|
||||
exit(EXIT_FAILURE);
|
||||
} else {
|
||||
errno_exit("VIDIOC_QUERYCAP");
|
||||
}
|
||||
}
|
||||
|
||||
if (!(cap.capabilities & V4L2_CAP_VIDEO_CAPTURE)) {
|
||||
fprintf(stderr, "%s is no video capture device\\n",
|
||||
dev_name);
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
switch (io) {
|
||||
case IO_METHOD_READ:
|
||||
if (!(cap.capabilities & V4L2_CAP_READWRITE)) {
|
||||
fprintf(stderr, "%s does not support read i/o\\n",
|
||||
dev_name);
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
break;
|
||||
|
||||
case IO_METHOD_MMAP:
|
||||
case IO_METHOD_USERPTR:
|
||||
if (!(cap.capabilities & V4L2_CAP_STREAMING)) {
|
||||
fprintf(stderr, "%s does not support streaming i/o\\n",
|
||||
dev_name);
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
|
||||
/* Select video input, video standard and tune here. */
|
||||
|
||||
|
||||
CLEAR(cropcap);
|
||||
|
||||
cropcap.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
||||
|
||||
if (0 == xioctl(fd, VIDIOC_CROPCAP, &cropcap)) {
|
||||
crop.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
||||
crop.c = cropcap.defrect; /* reset to default */
|
||||
|
||||
if (-1 == xioctl(fd, VIDIOC_S_CROP, &crop)) {
|
||||
switch (errno) {
|
||||
case EINVAL:
|
||||
/* Cropping not supported. */
|
||||
break;
|
||||
default:
|
||||
/* Errors ignored. */
|
||||
break;
|
||||
}
|
||||
}
|
||||
} else {
|
||||
/* Errors ignored. */
|
||||
}
|
||||
|
||||
|
||||
CLEAR(fmt);
|
||||
|
||||
fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
||||
if (force_format_width > 0) {
|
||||
fmt.fmt.pix.width = force_format_width;
|
||||
fmt.fmt.pix.height = force_format_height;
|
||||
fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_RGB24;
|
||||
fmt.fmt.pix.field = V4L2_FIELD_INTERLACED;
|
||||
printf("Requesting a cooler format!\n");
|
||||
|
||||
if (-1 == xioctl(fd, VIDIOC_S_FMT, &fmt))
|
||||
errno_exit("VIDIOC_S_FMT");
|
||||
|
||||
/* Note VIDIOC_S_FMT may change width and height. */
|
||||
} else {
|
||||
/* Preserve original settings as set by v4l2-ctl for example */
|
||||
if (-1 == xioctl(fd, VIDIOC_G_FMT, &fmt))
|
||||
errno_exit("VIDIOC_G_FMT");
|
||||
}
|
||||
|
||||
/* Buggy driver paranoia. */
|
||||
min = fmt.fmt.pix.width * 2;
|
||||
if (fmt.fmt.pix.bytesperline < min)
|
||||
fmt.fmt.pix.bytesperline = min;
|
||||
min = fmt.fmt.pix.bytesperline * fmt.fmt.pix.height;
|
||||
if (fmt.fmt.pix.sizeimage < min)
|
||||
fmt.fmt.pix.sizeimage = min;
|
||||
|
||||
switch (io) {
|
||||
case IO_METHOD_READ:
|
||||
//init_read(fmt.fmt.pix.sizeimage);
|
||||
break;
|
||||
|
||||
case IO_METHOD_MMAP:
|
||||
init_mmap(fd);
|
||||
break;
|
||||
|
||||
case IO_METHOD_USERPTR:
|
||||
//init_userp(fmt.fmt.pix.sizeimage);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static void process_image(const void *p, int size) {
|
||||
GdkPixbuf *pixbuf;
|
||||
pixbuf = gdk_pixbuf_new_from_data(p, GDK_COLORSPACE_RGB, FALSE, 8, 640, 480, 2 * 640, NULL, NULL);
|
||||
gtk_image_set_from_pixbuf(preview_image, pixbuf);
|
||||
}
|
||||
|
||||
static int read_frame(int fd) {
|
||||
struct v4l2_buffer buf;
|
||||
unsigned int i;
|
||||
|
||||
switch (io) {
|
||||
case IO_METHOD_READ:
|
||||
if (-1 == read(fd, buffers[0].start, buffers[0].length)) {
|
||||
switch (errno) {
|
||||
case EAGAIN:
|
||||
return 0;
|
||||
|
||||
case EIO:
|
||||
/* Could ignore EIO, see spec. */
|
||||
|
||||
/* fall through */
|
||||
|
||||
default:
|
||||
errno_exit("read");
|
||||
}
|
||||
}
|
||||
|
||||
process_image(buffers[0].start, buffers[0].length);
|
||||
break;
|
||||
|
||||
case IO_METHOD_MMAP:
|
||||
CLEAR(buf);
|
||||
|
||||
buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
||||
buf.memory = V4L2_MEMORY_MMAP;
|
||||
|
||||
if (-1 == xioctl(fd, VIDIOC_DQBUF, &buf)) {
|
||||
switch (errno) {
|
||||
case EAGAIN:
|
||||
return 0;
|
||||
|
||||
case EIO:
|
||||
/* Could ignore EIO, see spec. */
|
||||
|
||||
/* fall through */
|
||||
|
||||
default:
|
||||
errno_exit("VIDIOC_DQBUF");
|
||||
}
|
||||
}
|
||||
|
||||
//assert(buf.index < n_buffers);
|
||||
|
||||
process_image(buffers[buf.index].start, buf.bytesused);
|
||||
|
||||
if (-1 == xioctl(fd, VIDIOC_QBUF, &buf))
|
||||
errno_exit("VIDIOC_QBUF");
|
||||
break;
|
||||
|
||||
case IO_METHOD_USERPTR:
|
||||
CLEAR(buf);
|
||||
|
||||
buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
||||
buf.memory = V4L2_MEMORY_USERPTR;
|
||||
|
||||
if (-1 == xioctl(fd, VIDIOC_DQBUF, &buf)) {
|
||||
switch (errno) {
|
||||
case EAGAIN:
|
||||
return 0;
|
||||
|
||||
case EIO:
|
||||
/* Could ignore EIO, see spec. */
|
||||
|
||||
/* fall through */
|
||||
|
||||
default:
|
||||
errno_exit("VIDIOC_DQBUF");
|
||||
}
|
||||
}
|
||||
|
||||
for (i = 0; i < n_buffers; ++i)
|
||||
if (buf.m.userptr == (unsigned long) buffers[i].start
|
||||
&& buf.length == buffers[i].length)
|
||||
break;
|
||||
|
||||
//assert(i < n_buffers);
|
||||
|
||||
process_image((void *) buf.m.userptr, buf.bytesused);
|
||||
|
||||
if (-1 == xioctl(fd, VIDIOC_QBUF, &buf))
|
||||
errno_exit("VIDIOC_QBUF");
|
||||
break;
|
||||
}
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
static void get_frame(int fd) {
|
||||
for (;;) {
|
||||
fd_set fds;
|
||||
struct timeval tv;
|
||||
int r;
|
||||
|
||||
FD_ZERO(&fds);
|
||||
FD_SET(fd, &fds);
|
||||
|
||||
/* Timeout. */
|
||||
tv.tv_sec = 2;
|
||||
tv.tv_usec = 0;
|
||||
|
||||
r = select(fd + 1, &fds, NULL, NULL, &tv);
|
||||
|
||||
if (-1 == r) {
|
||||
if (EINTR == errno)
|
||||
continue;
|
||||
errno_exit("select");
|
||||
}
|
||||
|
||||
if (0 == r) {
|
||||
fprintf(stderr, "select timeout\\n");
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
if (read_frame(fd))
|
||||
break;
|
||||
/* EAGAIN - continue select loop. */
|
||||
}
|
||||
}
|
||||
|
||||
int main(int argc,
|
||||
char *argv[]) {
|
||||
GtkBuilder *builder;
|
||||
GObject *window;
|
||||
GObject *preview_box;
|
||||
GError *error = NULL;
|
||||
|
||||
gtk_init(&argc, &argv);
|
||||
|
||||
/* Construct a GtkBuilder instance and load our UI description */
|
||||
builder = gtk_builder_new();
|
||||
if (gtk_builder_add_from_file(builder, "camera.glade", &error) == 0) {
|
||||
g_printerr("Error loading file: %s\n", error->message);
|
||||
g_clear_error(&error);
|
||||
return 1;
|
||||
}
|
||||
|
||||
/* Connect signal handlers to the constructed widgets. */
|
||||
window = gtk_builder_get_object(builder, "window");
|
||||
preview_box = gtk_builder_get_object(builder, "preview_box");
|
||||
preview_image = gtk_builder_get_object(builder, "preview");
|
||||
g_signal_connect (window, "destroy", G_CALLBACK(gtk_main_quit), NULL);
|
||||
|
||||
/* Load the css */
|
||||
GtkCssProvider *provider = gtk_css_provider_new();
|
||||
gtk_css_provider_load_from_path(provider, "camera.css", NULL);
|
||||
GtkStyleContext *context;
|
||||
context = gtk_widget_get_style_context(preview_box);
|
||||
gtk_style_context_add_provider(context, GTK_STYLE_PROVIDER(provider), GTK_STYLE_PROVIDER_PRIORITY_USER);
|
||||
|
||||
/* Grab a frame from the camera */
|
||||
int fd;
|
||||
fd = open("/dev/video0", O_RDWR);
|
||||
if (fd == -1) {
|
||||
g_printerr("Error opening video device: /dev/video0\n");
|
||||
return 1;
|
||||
}
|
||||
init_device(fd);
|
||||
start_capturing(fd);
|
||||
get_frame(fd);
|
||||
|
||||
/* Show application */
|
||||
gtk_widget_show(window);
|
||||
gtk_main();
|
||||
|
||||
return 0;
|
||||
}
|
Loading…
Reference in New Issue