include/uapi/linux/dvb/osd.h

Source file repositories/reference/linux-study-clean/include/uapi/linux/dvb/osd.h

File Facts

System
Linux kernel
Corpus path
include/uapi/linux/dvb/osd.h
Extension
.h
Size
5234 bytes
Lines
167
Domain
Core OS
Bucket
Core Kernel Interface
Inferred role
Core OS: implementation source
Status
source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef _DVBOSD_H_
#define _DVBOSD_H_

#include <linux/compiler.h>

typedef enum {
	/* All functions return -2 on "not open" */
	OSD_Close = 1,	/* () */
	/*
	 * Disables OSD and releases the buffers
	 * returns 0 on success
	 */
	OSD_Open,	/* (x0,y0,x1,y1,BitPerPixel[2/4/8](color&0x0F),mix[0..15](color&0xF0)) */
	/*
	 * Opens OSD with this size and bit depth
	 * returns 0 on success, -1 on DRAM allocation error, -2 on "already open"
	 */
	OSD_Show,	/* () */
	/*
	 * enables OSD mode
	 * returns 0 on success
	 */
	OSD_Hide,	/* () */
	/*
	 * disables OSD mode
	 * returns 0 on success
	 */
	OSD_Clear,	/* () */
	/*
	 * Sets all pixel to color 0
	 * returns 0 on success
	 */
	OSD_Fill,	/* (color) */
	/*
	 * Sets all pixel to color <col>
	 * returns 0 on success
	 */
	OSD_SetColor,	/* (color,R{x0},G{y0},B{x1},opacity{y1}) */
	/*
	 * set palette entry <num> to <r,g,b>, <mix> and <trans> apply
	 * R,G,B: 0..255
	 * R=Red, G=Green, B=Blue
	 * opacity=0:      pixel opacity 0% (only video pixel shows)
	 * opacity=1..254: pixel opacity as specified in header
	 * opacity=255:    pixel opacity 100% (only OSD pixel shows)
	 * returns 0 on success, -1 on error
	 */
	OSD_SetPalette,	/* (firstcolor{color},lastcolor{x0},data) */
	/*
	 * Set a number of entries in the palette
	 * sets the entries "firstcolor" through "lastcolor" from the array "data"
	 * data has 4 byte for each color:
	 * R,G,B, and a opacity value: 0->transparent, 1..254->mix, 255->pixel
	 */
	OSD_SetTrans,	/* (transparency{color}) */
	/*
	 * Sets transparency of mixed pixel (0..15)
	 * returns 0 on success
	 */
	OSD_SetPixel,	/* (x0,y0,color) */
	/*
	 * sets pixel <x>,<y> to color number <col>
	 * returns 0 on success, -1 on error
	 */
	OSD_GetPixel,	/* (x0,y0) */
	/* returns color number of pixel <x>,<y>,  or -1 */
	OSD_SetRow,	/* (x0,y0,x1,data) */
	/*
	 * fills pixels x0,y through  x1,y with the content of data[]
	 * returns 0 on success, -1 on clipping all pixel (no pixel drawn)
	 */
	OSD_SetBlock,	/* (x0,y0,x1,y1,increment{color},data) */
	/*
	 * fills pixels x0,y0 through  x1,y1 with the content of data[]
	 * inc contains the width of one line in the data block,
	 * inc<=0 uses blockwidth as linewidth
	 * returns 0 on success, -1 on clipping all pixel
	 */
	OSD_FillRow,	/* (x0,y0,x1,color) */
	/*
	 * fills pixels x0,y through  x1,y with the color <col>
	 * returns 0 on success, -1 on clipping all pixel
	 */
	OSD_FillBlock,	/* (x0,y0,x1,y1,color) */
	/*
	 * fills pixels x0,y0 through  x1,y1 with the color <col>
	 * returns 0 on success, -1 on clipping all pixel
	 */
	OSD_Line,	/* (x0,y0,x1,y1,color) */
	/*

Annotation

Implementation Notes