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layer.h：源码内容

							/*****************************************************************************
File Name  : layer.h
Description: 5100 LAYER header
COPYRIGHT (C) STMicroelectronics 2004.
*****************************************************************************/
/* Define to prevent recursive inclusion */
#ifndef __LAYER_H
#define __LAYER_H
/* Includes --------------------------------------------------------------- */
#include "stddefs.h"    /* STAPI includes */
#include "stlayer.h"
#include "gendef.h"
/* Exported Types ------------------------------------------------------ */
enum
{
    LAYER_VIDEO,
    LAYER_OSD,
    LAYER_STILL,
    NUM_LAYERS
};
typedef enum 
{
    VPORT_VID,
    VPORT_OSD,
    VPORT_OSD_CURSOR,
    VPORT_STILL,
    NUM_VPORTS
}KB_LayerViewPort;
/* Exported Constants -------------------------------------------------- */
/* Exported Variables -------------------------------------------------- */
extern ST_DeviceName_t  g_KB_LayerDeviceName[NUM_LAYERS];
extern STLAYER_Handle_t g_KB_LayerHandle[NUM_LAYERS];
/* Exported Macros ----------------------------------------------------- */
#define KB_LAYER_BASE_ADDRESS          		0
#define KB_LAYER_BASE_ADDRESS2         		0
#define KB_LAYER_TYPE                  			STLAYER_COMPOSITOR
#define KB_LAYER_DEVICE_BASE_ADDRESS   	0
#define KB_LAYER_MAX_HANDLES           		NUM_LAYERS
#define KB_LAYER_MAX_VIEWPORTS         		NUM_VPORTS
/* Exported Functions -------------------------------------------------- */
ST_ErrorCode_t KB_LayerSetup( void );
ST_ErrorCode_t KB_LayerSetLayerParams(void);
INT32 KB_LayerOpenViewPort(UINT8 Layer,UINT8 Vport,STGXOBJ_Bitmap_t *Bitmap_p,STGXOBJ_Rectangle_t *OutputRectangle_p);
INT32 KB_LayerEnableViewPort(UINT8 cLayer, UINT8 cVport);
INT32 KB_LayerDisableViewPort(UINT8 cVport);
INT32 KB_LayerSetOutParam(UINT8 Layer, UINT8 Vport,STGXOBJ_Rectangle_t *OutputRectangle_p);
INT32 KB_LayerSetViewPortAlpha(STLAYER_ViewPortHandle_t nVPHandle, INT32 nLevel);
#endif /* __LAYER_H */
/* EOF --------------------------------------------------------------------- */

						