-/*******************************************************************************
+/*****************************************************************************
* 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.
- *******************************************************************************
- * Requires:
- * "config.h"
- * "common.h"
- * "mtime.h"
- * "vlc_thread.h"
- * "video.h"
- *******************************************************************************/
-
-/* ?? this over-complicated API and code should be re-designed, with a simple
- * video-stream associated to a window (each window designed to be openned in
- * a parent one and probably without border), and have an api looking like
- * vout_CreateWindow
- * vout_DestroyWindow
- * vout_AddPicture
- * vout_RemovePicture
- * vout_ReservePicture
- * vout_AddReservedPicture
- * vout_Clear
- * vout_Refresh
- *
- * the overlay/transparent, permanent and such stuff should disapear.
- */
-
-/*******************************************************************************
- * vout_stream_t: video stream descriptor
- *******************************************************************************
- * Each video stream has a set of properties, stored in this structure. It is
- * part of vout_thread_t and is not supposed to be used anywhere else.
- *******************************************************************************/
-typedef struct
+ *****************************************************************************
+ * 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 02111-1307, USA.
+ *****************************************************************************/
+
+/*****************************************************************************
+ * vout_yuv_convert_t: YUV convertion function
+ *****************************************************************************
+ * This is the prototype common to all convertion functions. The type of p_pic
+ * will change depending of the screen depth treated.
+ * 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 convertion tables
+ *****************************************************************************
+ * These tables are used by convertion and scaling functions.
+ *****************************************************************************/
+typedef struct vout_yuv_s
{
- int i_status; /* is stream active ? */
- picture_t * p_next_picture; /* next picture to be displayed */
+ /* Convertion 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 convertion 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 convertion buffer and offset array */
+ void * p_buffer; /* convertion buffer */
+ int * p_offset; /* offset array */
+} vout_yuv_t;
+
+/*****************************************************************************
+ * vout_buffer_t: rendering buffer
+ *****************************************************************************
+ * This structure store informations 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 extension */
-#ifdef STATS
- /* Statistics */
- count_t c_pictures; /* total number of pictures added */
- count_t c_rendered_pictures; /* number of rendered pictures */
-#endif
-} vout_stream_t;
+ /* 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 */
-/* Video stream status */
-#define VOUT_INACTIVE_STREAM 0 /* stream is inactive (empty) */
-#define VOUT_ACTIVE_STREAM 1 /* stream is active */
-#define VOUT_ENDING_STREAM 2 /* stream will be destroyed when empty */
-#define VOUT_DESTROYED_STREAM 3 /* stream must be destroyed */
+ /* 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, is represented
- * by a video output thread, and described using following structure.
- *******************************************************************************/
+ *****************************************************************************
+ * Any independant video output device, such as an X11 window or a GGI device,
+ * 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 );
+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 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 */
- vlc_thread_t thread_id; /* id for thread functions */
- vlc_mutex_t streams_lock; /* streams modification lock */
- vlc_mutex_t pictures_lock; /* pictures modification lock */
- int * pi_status; /* temporary status flag */
-
- /* Common display properties */
- int i_width; /* current output method width */
- int i_height; /* current output method height */
- int i_screen_depth; /* bits per pixel */
- int i_bytes_per_pixel; /* real screen depth */
-
- /* Output method */
- struct vout_x11_s * p_x11; /* X11 output method */
-
- /* Video heap */
- int i_max_pictures; /* heap maximal size */
- int i_pictures; /* current heap size */
- picture_t * p_picture; /* pictures */
-
- /* Streams data */
- vout_stream_t p_stream[VOUT_MAX_STREAMS]; /* streams data */
-
-#ifdef STATS
- /* Statistics */
- count_t c_loops; /* number of loops */
- count_t c_idle_loops; /* number of idle loops */
- count_t c_pictures; /* number of pictures added to heap */
- count_t c_rendered_pictures; /* number of pictures rendered */
-#endif
-
- /* Rendering functions - these functions are of vout_render_blank_t and
- * vout_render_line_t, but are not declared here using these types since
- * they require vout_thread_t to be defined */
- void (* RenderRGBBlank) ( struct vout_thread_s *p_vout, pixel_t pixel,
- int i_x, int i_y, int i_width, int i_height );
- void (* RenderPixelBlank) ( struct vout_thread_s *p_vout, pixel_t pixel,
- int i_x, int i_y, int i_width, int i_height );
- void (* RenderRGBLine) ( struct vout_thread_s *p_vout, picture_t *p_pic,
- int i_x, int i_y, int i_pic_x, int i_pic_y,
- int i_width, int i_line_width, int i_ratio );
- void (* RenderPixelLine) ( struct vout_thread_s *p_vout, picture_t *p_pic,
- int i_x, int i_y, int i_pic_x, int i_pic_y,
- int i_width, int i_line_width, int i_ratio );
- void (* RenderRGBMaskLine) ( struct vout_thread_s *p_vout, picture_t *p_pic,
- int i_x, int i_y, int i_pic_x, int i_pic_y,
- int i_width, int i_line_width, int i_ratio );
- void (* RenderPixelMaskLine) ( struct vout_thread_s *p_vout, picture_t *p_pic,
- int i_x, int i_y, int i_pic_x, int i_pic_y,
- int i_width, int i_line_width, int i_ratio );
- /* ?? add YUV types */
-} vout_thread_t;
-
-/*******************************************************************************
- * vout_render_blank_t: blank rendering function
- * vout_render_line_t: rectangle rendering functions
- *******************************************************************************
- * All rendering functions should be of these types - for blank pictures
- * (pictures with uniform color), blank rendering functions are called once. For
- * other pictures, each function is called once for each picture line. Note that
- * the part of the picture sent to the rendering functions is in the output
- * window, since the clipping is done before.
- * p_vout is the calling thread
- * pixel is the color or pixel value of the rectange to be drawn
- * p_pic is the picture to be rendered
- * i_x, i_y is the absolute position in output window
- * i_pic_x is the first pixel to be drawn in the picture
- * i_pic_y is the line of the picture to be drawn
- * i_width is the width of the area to be rendered in the picture (not in the
- * output window), except for blank pictures, where it is the absolute size
- * of the area to be rendered
- * i_height is the height og the area to be rendered
- * i_line_width is the number of time the line must be copied
- * i_ratio is the horizontal display ratio
- *******************************************************************************/
-typedef void (vout_render_blank_t)( vout_thread_t *p_vout, pixel_t pixel,
- int i_x, int i_y, int i_width, int i_height );
-typedef void (vout_render_line_t) ( vout_thread_t *p_vout, picture_t *p_pic,
- int i_x, int i_y, int i_pic_x, int i_pic_y,
- int i_width, int i_line_width, int i_ratio );
-
-/*******************************************************************************
- * Prototypes
- *******************************************************************************/
-vout_thread_t * vout_CreateThread ( video_cfg_t *p_cfg, int *pi_status );
-void vout_DestroyThread ( vout_thread_t *p_vout, int *pi_status );
+ /* 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 */
+ void * p_vout_plugin; /* video output plugin */
+ 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; /* sets 8bpp palette */
+
+ /* Pictures and rendering properties */
+ boolean_t b_grayscale; /* color or grayscale display */
+ boolean_t b_info; /* print additionnal informations */
+ 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 */
-picture_t * vout_DisplayPicture ( vout_thread_t *p_vout, picture_t *p_pic );
-picture_t * vout_DisplayPictureCopy ( vout_thread_t *p_vout, picture_t *p_pic );
-picture_t * vout_DisplayPictureReplicate ( vout_thread_t *p_vout, picture_t *p_pic );
-picture_t * vout_DisplayReservedPicture ( vout_thread_t *p_vout, picture_t *p_pic );
-
-picture_t * vout_CreateReservedPicture ( vout_thread_t *p_vout, video_cfg_t *p_cfg );
-picture_t * vout_ReservePicture ( vout_thread_t *p_vout, picture_t *p_pic );
-picture_t * vout_ReservePictureCopy ( vout_thread_t *p_vout, picture_t *p_pic );
-picture_t * vout_ReservePictureReplicate ( vout_thread_t *p_vout, picture_t *p_pic );
-void vout_RemovePicture ( vout_thread_t *p_vout, picture_t *p_pic );
-
-void vout_RefreshPermanentPicture ( vout_thread_t *p_vout, picture_t *p_pic,
- mtime_t displa_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 );
-
-int vout_CreateStream ( vout_thread_t *p_vout );
-void vout_EndStream ( vout_thread_t *p_vout, int i_stream );
-void vout_DestroyStream ( vout_thread_t *p_vout, int i_stream );
-
-#ifdef DEBUG
-void vout_PrintHeap ( vout_thread_t *p_vout, char *psz_str );
+#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
+ /* Rendering buffers */
+ int i_buffer_index; /* buffer index */
+ vout_buffer_t p_buffer[2]; /* buffers properties */
+ /* Videos 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 */
+ /* Synchronisation 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 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 );
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