1 /*****************************************************************************
2 * mac.c: Screen capture module for the Mac.
3 *****************************************************************************
4 * Copyright (C) 2004 VideoLAN
5 * $Id: x11.c 8290 2004-07-26 20:29:24Z gbazin $
7 * Authors: Derk-Jan Hartman <hartman at videolan dot org>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
30 #include <vlc/input.h>
32 #include <Carbon/Carbon.h>
33 #include <ApplicationServices/ApplicationServices.h>
35 typedef int CGSConnectionRef;
36 extern CGError CGSNewConnection(void* unknown, CGSConnectionRef* newConnection);
37 extern CGError CGSReleaseConnection(CGSConnectionRef connection);
43 RGBColor oldForeColor, oldBackColor;
45 CGDirectDisplayID displayID;
46 CGSConnectionRef gConnection;
49 PixMapHandle gDevicePix;
50 GWorldPtr LocalBufferGW;
51 PixMapHandle LocalBufferPix;
54 int screen_InitCapture( demux_t *p_demux )
56 demux_sys_t *p_sys = p_demux->p_sys;
57 screen_data_t *p_data;
58 int i_chroma, i_bbp, i_offset;
60 i_chroma = i_bbp = i_offset = 0;
62 p_sys->p_data = p_data =
63 (screen_data_t *)malloc( sizeof( screen_data_t ) );
65 p_data->gConnection = NULL;
66 p_data->gMainDevice = NULL;
67 p_data->gDevicePix = NULL;
68 p_data->gDeviceState = NULL;
69 p_data->LocalBufferGW = NULL;
70 p_data->LocalBufferPix = NULL;
72 p_data->displayID = CGMainDisplayID();
73 (void) GetMainDevice();
75 if( CGDisplaySamplesPerPixel(p_data->displayID) != 3 )
77 msg_Err( p_demux, "screenformat not supported" );
80 switch( CGDisplaySamplesPerPixel(p_data->displayID) * CGDisplayBitsPerSample(p_data->displayID) )
82 /* TODO figure out 256 colors (who uses it anyways) */
83 case 15: /* TODO this is not RV16, but BGR16 */
84 i_chroma = VLC_FOURCC('R','V','1','6');
90 i_chroma = VLC_FOURCC('R','V','3','2');
95 msg_Err( p_demux, "unknown screen depth: %d", CGDisplaySamplesPerPixel(p_data->displayID) * CGDisplayBitsPerSample(p_data->displayID) );
99 GetBackColor(&p_data->oldBackColor);
100 GetPenState(&p_data->oldState);
101 ForeColor(blackColor);
102 BackColor(whiteColor);
104 p_data->gMainDevice = GetMainDevice();
105 p_data->gDeviceState = HGetState((Handle)p_data->gMainDevice);
106 HLock((Handle)p_data->gMainDevice);
107 p_data->gDevicePix = (**p_data->gMainDevice).gdPMap;
109 NewGWorld(&p_data->LocalBufferGW, (**p_data->gDevicePix).pixelSize, &(**p_data->gDevicePix).bounds, (**p_data->gDevicePix).pmTable, NULL, 0);
110 p_data->LocalBufferPix = GetGWorldPixMap(p_data->LocalBufferGW);
111 LockPixels(p_data->LocalBufferPix);
113 es_format_Init( &p_sys->fmt, VIDEO_ES, i_chroma );
114 p_sys->fmt.video.i_width = CGDisplayPixelsWide(p_data->displayID) + i_offset;
115 p_sys->fmt.video.i_visible_width = CGDisplayPixelsWide(p_data->displayID);
116 p_sys->fmt.video.i_height = CGDisplayPixelsHigh(p_data->displayID);
117 p_sys->fmt.video.i_bits_per_pixel = i_bbp;
119 GetForeColor(&p_data->oldForeColor);
121 HSetState( (Handle)p_data->gMainDevice, p_data->gDeviceState );
122 SetPenState( &p_data->oldState);
123 RGBForeColor( &p_data->oldForeColor );
124 RGBBackColor( &p_data->oldBackColor );
129 int screen_CloseCapture( demux_t *p_demux )
131 screen_data_t *p_data = (screen_data_t *)p_demux->p_sys->p_data;
133 if(p_data->LocalBufferPix) UnlockPixels(p_data->LocalBufferPix); p_data->LocalBufferPix = NULL;
134 if(p_data->LocalBufferGW) DisposeGWorld(p_data->LocalBufferGW); p_data->LocalBufferGW = NULL;
139 block_t *screen_Capture( demux_t *p_demux )
141 demux_sys_t *p_sys = p_demux->p_sys;
142 screen_data_t *p_data = (screen_data_t *)p_sys->p_data;
146 i_size = p_sys->fmt.video.i_height * p_sys->fmt.video.i_width * 32 / 8;
148 if( !( p_block = block_New( p_demux, i_size ) ) )
150 msg_Warn( p_demux, "cannot get block" );
154 GetForeColor(&p_data->oldForeColor);
155 GetBackColor(&p_data->oldBackColor);
156 GetPenState(&p_data->oldState);
157 ForeColor(blackColor);
158 BackColor(whiteColor);
160 assert(CGSNewConnection(NULL, &p_data->gConnection) == kCGErrorSuccess);
161 p_data->gMainDevice = GetMainDevice();
162 p_data->gDeviceState = HGetState((Handle)p_data->gMainDevice);
163 HLock((Handle)p_data->gMainDevice);
164 p_data->gDevicePix = (**p_data->gMainDevice).gdPMap;
166 CopyBits(( BitMap*)*p_data->gDevicePix, (BitMap*)*p_data->LocalBufferPix,
167 &(**p_data->gDevicePix).bounds, &(**p_data->gDevicePix).bounds,
170 HSetState( (Handle)p_data->gMainDevice, p_data->gDeviceState );
171 SetPenState( &p_data->oldState );
172 RGBForeColor( &p_data->oldForeColor );
173 RGBBackColor( &p_data->oldBackColor );
175 assert(CGSReleaseConnection(p_data->gConnection) == kCGErrorSuccess);
176 memcpy( p_block->p_buffer, (**p_data->LocalBufferPix).baseAddr, i_size );