X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=include%2Fvideo_output.h;h=0035c6aea9249d399253aac87e6ea88a51172770;hb=52d7937c89ef32288f99b79dcefd91dd48ae691a;hp=ed833ea7517c7fc89d17c1c38133bbd656df68a7;hpb=9b4528b5d24fda6f4fb7b1ff0c3c3932879fe54b;p=vlc diff --git a/include/video_output.h b/include/video_output.h index ed833ea751..0035c6aea9 100644 --- a/include/video_output.h +++ b/include/video_output.h @@ -1,109 +1,252 @@ -/******************************************************************************* +/***************************************************************************** * video_output.h : video output thread - * (c)1999 VideoLAN - ******************************************************************************* * This module describes the programming interface for video output threads. * It includes functions allowing to open a new thread, send pictures to a * thread, and destroy a previously oppenned video output thread. - *******************************************************************************/ + ***************************************************************************** + * Copyright (C) 1999, 2000 VideoLAN + * + * Authors: + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA. + *****************************************************************************/ + +/***************************************************************************** + * vout_yuv_convert_t: YUV conversion function + ***************************************************************************** + * This is the prototype common to all conversion functions. The type of p_pic + * will change depending on the processed screen depth. + * Parameters: + * p_vout video output thread + * p_pic picture address + * p_y, p_u, p_v Y,U,V samples addresses + * i_width, i_height Y samples extension + * i_pic_width, i_pic_height picture extension + * i_pic_line_width picture total line width + * i_matrix_coefficients matrix coefficients + * Picture width and source dimensions must be multiples of 16. + *****************************************************************************/ +typedef void (vout_yuv_convert_t)( p_vout_thread_t p_vout, void *p_pic, + yuv_data_t *p_y, yuv_data_t *p_u, yuv_data_t *p_v, + int i_width, int i_height, + int i_pic_width, int i_pic_height, int i_pic_line_width, + int i_matrix_coefficients ); + +/***************************************************************************** + * vout_yuv_t: pre-calculated YUV conversion tables + ***************************************************************************** + * These tables are used by conversion and scaling functions. + *****************************************************************************/ +typedef struct vout_yuv_s +{ + /* conversion functions */ + vout_yuv_convert_t * p_Convert420; /* YUV 4:2:0 converter */ + vout_yuv_convert_t * p_Convert422; /* YUV 4:2:2 converter */ + vout_yuv_convert_t * p_Convert444; /* YUV 4:4:4 converter */ + + /* Pre-calculated conversion tables */ + void * p_base; /* base for all conversion tables */ + union + { + u8 * p_gray8; /* gray 8 bits table */ + u16 * p_gray16; /* gray 16 bits table */ + u32 * p_gray32; /* gray 32 bits table */ + u8 * p_rgb8; /* RGB 8 bits table */ + u16 * p_rgb16; /* RGB 16 bits table */ + u32 * p_rgb32; /* RGB 32 bits table */ + } yuv; + + /* Temporary conversion buffer and offset array */ + void * p_buffer; /* conversion buffer */ + int * p_offset; /* offset array */ +} vout_yuv_t; + +/***************************************************************************** + * vout_buffer_t: rendering buffer + ***************************************************************************** + * This structure stores information about a buffer. Buffers are not completely + * cleared between displays, and modified areas need to be stored. + *****************************************************************************/ +typedef struct vout_buffer_s +{ + /* Picture area */ + int i_pic_x, i_pic_y; /* picture position */ + int i_pic_width, i_pic_height; /* picture size */ + + /* Other areas - only vertical extensions of areas are stored */ + int i_areas; /* number of areas */ + int pi_area_begin[VOUT_MAX_AREAS]; /* beginning of area */ + int pi_area_end[VOUT_MAX_AREAS]; /* end of area */ + + /* Picture data */ + byte_t * p_data; /* memory address */ +} vout_buffer_t; -/******************************************************************************* +/***************************************************************************** * vout_thread_t: video output thread descriptor - ******************************************************************************* + ***************************************************************************** * Any independant video output device, such as an X11 window or a GGI device, - * is represented by a video output thread, and described using following + * is represented by a video output thread, and described using the following * structure. - *******************************************************************************/ + *****************************************************************************/ +typedef int (vout_sys_create_t) ( p_vout_thread_t p_vout, + char *psz_display, + int i_root_window, void *p_data ); +typedef int (vout_sys_init_t) ( p_vout_thread_t p_vout ); +typedef void (vout_sys_end_t) ( p_vout_thread_t p_vout ); +typedef void (vout_sys_destroy_t) ( p_vout_thread_t p_vout ); +typedef int (vout_sys_manage_t) ( p_vout_thread_t p_vout ); +typedef void (vout_sys_display_t) ( p_vout_thread_t p_vout ); + +typedef void (vout_set_palette_t) ( p_vout_thread_t p_vout, u16 *red, + u16 *green, u16 *blue, u16 *transp ); + +typedef int (yuv_sys_init_t) ( p_vout_thread_t p_vout ); +typedef int (yuv_sys_reset_t) ( p_vout_thread_t p_vout ); +typedef void (yuv_sys_end_t) ( p_vout_thread_t p_vout ); + typedef struct vout_thread_s { - /* Thread properties and locks */ - boolean_t b_die; /* `die' flag */ - boolean_t b_error; /* `error' flag */ - boolean_t b_active; /* `active' flag */ - pthread_t thread_id; /* id for pthread functions */ - pthread_mutex_t lock; /* thread lock */ - int * pi_status; /* temporary status flag */ - - /* Common display properties */ - boolean_t b_info; /* print additionnal informations */ - boolean_t b_grayscale; /* color or grayscale display */ - int i_width; /* current output method width */ - int i_height; /* current output method height */ - int i_bytes_per_line;/* bytes per line (including virtual) */ - int i_screen_depth; /* bits per pixel */ - int i_bytes_per_pixel; /* real screen depth */ - float f_x_ratio; /* horizontal display ratio */ - float f_y_ratio; /* vertical display ratio */ - float f_gamma; /* gamma */ - - /* Changed properties values - some of them are treated directly by the - * thread, the over may be ignored or handled by vout_SysManage */ - boolean_t b_gamma_change; /* gamma change indicator */ - int i_new_width; /* new width */ - int i_new_height; /* new height */ - -#ifdef STATS - /* Statistics - these numbers are not supposed to be accurate */ - count_t c_loops; /* number of loops */ - count_t c_idle_loops; /* number of idle loops */ - count_t c_fps_samples; /* picture counts */ - mtime_t fps_sample[ VOUT_FPS_SAMPLES ]; /* FPS samples dates */ -#endif - -#ifdef DEBUG_VIDEO - /* Video debugging informations */ - mtime_t picture_render_time; /* last picture rendering time */ + /* Thread properties and lock */ + boolean_t b_die; /* `die' flag */ + boolean_t b_error; /* `error' flag */ + boolean_t b_active; /* `active' flag */ + vlc_thread_t thread_id; /* id for pthread functions */ + vlc_mutex_t picture_lock; /* picture heap lock */ + vlc_mutex_t subpicture_lock; /* subpicture heap lock */ + vlc_mutex_t change_lock; /* thread change lock */ + int * pi_status; /* temporary status flag */ + p_vout_sys_t p_sys; /* system output method */ + + /* Current display properties */ + u16 i_changes; /* changes made to the thread */ + int i_width; /* current output method width */ + int i_height; /* current output method height */ + int i_bytes_per_line; /* bytes per line (incl. virtual) */ + int i_screen_depth; /* significant bpp: 8, 15, 16 or 24 */ + int i_bytes_per_pixel;/* real screen depth: 1, 2, 3 or 4 */ + float f_gamma; /* gamma */ + + /* Color masks and shifts in RGB mode - masks are set by system + * initialization, shifts are calculated. A pixel color value can be + * obtained using the formula ((value >> rshift) << lshift) */ + u32 i_red_mask; /* red mask */ + u32 i_green_mask; /* green mask */ + u32 i_blue_mask; /* blue mask */ + int i_red_lshift, i_red_rshift; /* red shifts */ + int i_green_lshift, i_green_rshift; /* green shifts */ + int i_blue_lshift, i_blue_rshift; /* blue shifts */ + + /* Useful pre-calculated pixel values - these are not supposed to be + * accurate values, but rather values looking nice, given their usage. */ + u32 i_white_pixel; /* white */ + u32 i_black_pixel; /* black */ + u32 i_gray_pixel; /* gray */ + u32 i_blue_pixel; /* blue */ + + /* Plugins */ + vout_sys_create_t * p_sys_create; /* allocate output method */ + vout_sys_init_t * p_sys_init; /* initialize output method */ + vout_sys_end_t * p_sys_end; /* terminate output method */ + vout_sys_destroy_t * p_sys_destroy; /* destroy output method */ + vout_sys_manage_t * p_sys_manage; /* handle events */ + vout_sys_display_t * p_sys_display; /* display rendered image */ + + vout_set_palette_t * p_set_palette; /* set 8bpp palette */ + + yuv_sys_init_t * p_yuv_init; /* initialize YUV tables */ + yuv_sys_reset_t * p_yuv_reset; /* reset YUV tables */ + yuv_sys_end_t * p_yuv_end; /* free YUV tables */ + + /* Pictures and rendering properties */ + boolean_t b_grayscale; /* color or grayscale display */ + boolean_t b_info; /* print additional information */ + boolean_t b_interface; /* render interface */ + boolean_t b_scale; /* allow picture scaling */ + + /* Idle screens management */ + mtime_t last_display_date; /* last non idle display date */ + mtime_t last_idle_date; /* last idle display date */ + +#ifdef STATS + /* Statistics - these numbers are not supposed to be accurate, but are a + * good indication of the thread status */ + mtime_t render_time; /* last picture render time */ + count_t c_fps_samples; /* picture counts */ + mtime_t p_fps_sample[VOUT_FPS_SAMPLES]; /* FPS samples dates */ #endif - /* Output method */ - p_vout_sys_t p_sys; /* system output method */ - - /* Video heap */ - picture_t p_picture[VOUT_MAX_PICTURES]; /* pictures */ - - /* YUV translation tables - they have to be casted to the appropriate width - * on use. All tables are allocated in the same memory block, based at - * p_trans_base, and shifted depending of the output thread configuration */ - byte_t * p_trans_base; /* base for all translation tables */ - void * p_trans_red; /* regular red */ - void * p_trans_green; /* regular green */ - void * p_trans_blue; /* regular blue */ - void * p_trans_gray; /* regular gray */ - void * p_trans_optimized; /* optimized (all colors) */ -} vout_thread_t; - -/******************************************************************************* - * Prototypes - *******************************************************************************/ -vout_thread_t * vout_CreateThread ( -#ifdef VIDEO_X11 - char *psz_display, Window root_window, -#endif - int i_width, int i_height, int *pi_status - ); - -void vout_DestroyThread ( vout_thread_t *p_vout, int *pi_status ); - -picture_t * vout_CreatePicture ( vout_thread_t *p_vout, int i_type, - int i_width, int i_height, int i_bytes_per_line ); -void vout_DestroyPicture ( vout_thread_t *p_vout, picture_t *p_pic ); -void vout_DisplayPicture ( vout_thread_t *p_vout, picture_t *p_pic ); -void vout_LinkPicture ( vout_thread_t *p_vout, picture_t *p_pic ); -void vout_UnlinkPicture ( vout_thread_t *p_vout, picture_t *p_pic ); - - - - - - - - - - - - + /* Rendering buffers */ + int i_buffer_index; /* buffer index */ + vout_buffer_t p_buffer[2]; /* buffers properties */ + /* Video heap and translation tables */ + picture_t p_picture[VOUT_MAX_PICTURES]; /* pictures */ + subpicture_t p_subpicture[VOUT_MAX_PICTURES]; /* subpictures */ + int i_pictures; /* current heap size */ + vout_yuv_t yuv; /* translation tables */ + /* Bitmap fonts */ + p_vout_font_t p_default_font; /* default font */ + p_vout_font_t p_large_font; /* large font */ + /* Synchronization informations - synchro level is updated by the vout + * thread and read by decoder threads */ + int i_synchro_level; /* trashing level */ +} vout_thread_t; +/* Flags for changes - these flags are set in the i_changes field when another + * thread changed a variable */ +#define VOUT_INFO_CHANGE 0x0001 /* b_info changed */ +#define VOUT_GRAYSCALE_CHANGE 0x0002 /* b_grayscale changed */ +#define VOUT_INTF_CHANGE 0x0004 /* b_interface changed */ +#define VOUT_SCALE_CHANGE 0x0008 /* b_scale changed */ +#define VOUT_SIZE_CHANGE 0x0200 /* size changed */ +#define VOUT_DEPTH_CHANGE 0x0400 /* depth changed */ +#define VOUT_GAMMA_CHANGE 0x0010 /* gamma changed */ +#define VOUT_YUV_CHANGE 0x0800 /* change yuv tables */ +#define VOUT_NODISPLAY_CHANGE 0xff00 /* changes which forbidden display */ + +/***************************************************************************** + * Macros + *****************************************************************************/ + +/* RGB2PIXEL: assemble RGB components to a pixel value, returns a u32 */ +#define RGB2PIXEL( p_vout, i_red, i_green, i_blue ) \ + (((((u32)i_red) >> p_vout->i_red_rshift) << p_vout->i_red_lshift) | \ + ((((u32)i_green) >> p_vout->i_green_rshift) << p_vout->i_green_lshift) | \ + ((((u32)i_blue) >> p_vout->i_blue_rshift) << p_vout->i_blue_lshift)) + + +/***************************************************************************** + * Prototypes + *****************************************************************************/ +vout_thread_t * vout_CreateThread ( char *psz_display, int i_root_window, + int i_width, int i_height, int *pi_status, + int i_method, void *p_data ); +void vout_DestroyThread ( vout_thread_t *p_vout, int *pi_status ); +picture_t * vout_CreatePicture ( vout_thread_t *p_vout, int i_type, + int i_width, int i_height ); +void vout_DestroyPicture ( vout_thread_t *p_vout, picture_t *p_pic ); +void vout_DisplayPicture ( vout_thread_t *p_vout, picture_t *p_pic ); +void vout_DatePicture ( vout_thread_t *p_vout, picture_t *p_pic, mtime_t date ); +void vout_LinkPicture ( vout_thread_t *p_vout, picture_t *p_pic ); +void vout_UnlinkPicture ( vout_thread_t *p_vout, picture_t *p_pic ); +subpicture_t * vout_CreateSubPicture ( vout_thread_t *p_vout, int i_type, int i_size ); +void vout_DestroySubPicture ( vout_thread_t *p_vout, subpicture_t *p_subpic ); +void vout_DisplaySubPicture ( vout_thread_t *p_vout, subpicture_t *p_subpic ); + +void vout_SetBuffers ( vout_thread_t *p_vout, void *p_buf1, void *p_buf2 );