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/*
pygame - Python Game Library
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "pygame.h"
#include "doc/camera_doc.h"
#if defined(__unix__)
#include <structmember.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <fcntl.h> /* low-level i/o */
#include <unistd.h>
#include <errno.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sys/mman.h>
#include <sys/ioctl.h>
/* on freebsd there is no asm/types */
#ifdef linux
#include <asm/types.h> /* for videodev2.h */
#endif
#include <linux/videodev2.h>
#elif defined(__APPLE__)
#include <AvailabilityMacros.h>
/* We support OSX 10.6 and below. */
#if __MAC_OS_X_VERSION_MAX_ALLOWED <= 1060
#define PYGAME_MAC_CAMERA_OLD 1
#endif
#endif
#if defined(PYGAME_MAC_CAMERA_OLD)
#include <QuickTime/QuickTime.h>
#include <QuickTime/Movies.h>
#include <QuickTime/ImageCompression.h>
#endif
/* some constants used which are not defined on non-v4l machines. */
#ifndef V4L2_PIX_FMT_RGB24
#define V4L2_PIX_FMT_RGB24 'RGB3'
#endif
#ifndef V4L2_PIX_FMT_RGB444
#define V4L2_PIX_FMT_RGB444 'R444'
#endif
#ifndef V4L2_PIX_FMT_YUYV
#define V4L2_PIX_FMT_YUYV 'YUYV'
#endif
#define CLEAR(x) memset (&(x), 0, sizeof (x))
#define SAT(c) if (c & (~255)) { if (c < 0) c = 0; else c = 255; }
#define SAT2(c) ((c) & (~255) ? ((c) < 0 ? 0 : 255) : (c))
#define DEFAULT_WIDTH 640
#define DEFAULT_HEIGHT 480
#define RGB_OUT 1
#define YUV_OUT 2
#define HSV_OUT 4
#define CAM_V4L 1 /* deprecated. the incomplete support in pygame was removed */
#define CAM_V4L2 2
struct buffer {
void * start;
size_t length;
};
#if defined(__unix__)
typedef struct pgCameraObject {
PyObject_HEAD
char* device_name;
int camera_type;
unsigned long pixelformat;
unsigned int color_out;
struct buffer* buffers;
unsigned int n_buffers;
int width;
int height;
int size;
int hflip;
int vflip;
int brightness;
int fd;
} pgCameraObject;
#elif defined(PYGAME_MAC_CAMERA_OLD)
typedef struct pgCameraObject {
PyObject_HEAD
char* device_name; /* unique name of the device */
OSType pixelformat;
unsigned int color_out;
SeqGrabComponent component; /* A type used by the Sequence Grabber API */
SGChannel channel; /* Channel of the Sequence Grabber */
GWorldPtr gworld; /* Pointer to the struct that holds the data of the captured image */
Rect boundsRect; /* bounds of the image frame */
long size; /* size of the image in our buffer to draw */
int hflip;
int vflip;
short depth;
struct buffer pixels;
//struct buffer tmp_pixels /* place where the flipped image in temporarily stored if hflip or vflip is true.*/
} pgCameraObject;
#else
/* generic definition.
*/
typedef struct pgCameraObject {
PyObject_HEAD
char* device_name;
int camera_type;
unsigned long pixelformat;
unsigned int color_out;
struct buffer* buffers;
unsigned int n_buffers;
int width;
int height;
int size;
int hflip;
int vflip;
int brightness;
int fd;
} pgCameraObject;
#endif
/* internal functions for colorspace conversion */
void colorspace (SDL_Surface *src, SDL_Surface *dst, int cspace);
void rgb24_to_rgb (const void* src, void* dst, int length, SDL_PixelFormat* format);
void rgb444_to_rgb (const void* src, void* dst, int length, SDL_PixelFormat* format);
void rgb_to_yuv (const void* src, void* dst, int length,
unsigned long source, SDL_PixelFormat* format);
void rgb_to_hsv (const void* src, void* dst, int length,
unsigned long source, SDL_PixelFormat* format);
void yuyv_to_rgb (const void* src, void* dst, int length, SDL_PixelFormat* format);
void yuyv_to_yuv (const void* src, void* dst, int length, SDL_PixelFormat* format);
void uyvy_to_rgb (const void* src, void* dst, int length, SDL_PixelFormat* format);
void uyvy_to_yuv (const void* src, void* dst, int length, SDL_PixelFormat* format);
void sbggr8_to_rgb (const void* src, void* dst, int width, int height,
SDL_PixelFormat* format);
void yuv420_to_rgb (const void* src, void* dst, int width, int height,
SDL_PixelFormat* format);
void yuv420_to_yuv (const void* src, void* dst, int width, int height,
SDL_PixelFormat* format);
#if defined(__unix__)
/* internal functions specific to v4l2 */
char** v4l2_list_cameras (int* num_devices);
int v4l2_get_control (int fd, int id, int *value);
int v4l2_set_control (int fd, int id, int value);
PyObject* v4l2_read_raw (pgCameraObject* self);
int v4l2_xioctl (int fd, int request, void *arg);
int v4l2_process_image (pgCameraObject* self, const void *image,
unsigned int buffer_size, SDL_Surface* surf);
int v4l2_query_buffer (pgCameraObject* self);
int v4l2_read_frame (pgCameraObject* self, SDL_Surface* surf);
int v4l2_stop_capturing (pgCameraObject* self);
int v4l2_start_capturing (pgCameraObject* self);
int v4l2_uninit_device (pgCameraObject* self);
int v4l2_init_mmap (pgCameraObject* self);
int v4l2_init_device (pgCameraObject* self);
int v4l2_close_device (pgCameraObject* self);
int v4l2_open_device (pgCameraObject* self);
#elif defined(PYGAME_MAC_CAMERA_OLD)
/* internal functions specific to mac */
char** mac_list_cameras(int* num_devices);
int mac_open_device (pgCameraObject* self);
int mac_init_device(pgCameraObject* self);
int mac_close_device (pgCameraObject* self);
int mac_start_capturing(pgCameraObject* self);
int mac_stop_capturing (pgCameraObject* self);
int mac_get_control(pgCameraObject* self, int id, int* value);
int mac_set_control(pgCameraObject* self, int id, int value);
PyObject* mac_read_raw(pgCameraObject *self);
int mac_read_frame(pgCameraObject* self, SDL_Surface* surf);
int mac_camera_idle(pgCameraObject* self);
int mac_copy_gworld_to_surface(pgCameraObject* self, SDL_Surface* surf);
void flip_image(const void* image, void* flipped_image, int width, int height,
short depth, int hflip, int vflip);
#endif
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