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