lcd.h

学习UCGUI的代码。适合于初学者使用。

/*********************************************************************
*                SEGGER MICROCONTROLLER SYSTEME GmbH                 *
*        Solutions for real time microcontroller applications        *
**********************************************************************
*                                                                    *
*        (c) 1996 - 2007  SEGGER Microcontroller Systeme GmbH        *
*                                                                    *
*        Internet: www.segger.com    Support:  [e-mail]    *
*                                                                    *
**********************************************************************

** emWin V4.10 - Graphical user interface for embedded applications **
emWin is protected by international copyright laws.   Knowledge of the
source code may not be used to write a similar product.  This file may
only be used in accordance with a license and should not be re-
distributed in any way. We appreciate your understanding and fairness.
----------------------------------------------------------------------
File        : LCD.h
Purpose     : Declares LCD interface functions
----------------------------------------------------------------------
*/

#ifndef LCD_H
#define LCD_H

#include "GUI_ConfDefaults.h" /* Used for GUI_UNI_PTR */
#include "Global.h"

#if defined(__cplusplus)
extern "C" {     /* Make sure we have C-declarations in C++ programs */
#endif

/*
  ********************************************************************
  *                                                                  *
  *                   Basic type defines                             *
  *                                                                  *
  ********************************************************************

The follwing are defines for types used in the LCD-driver and the
GUI layers on top of that. Since "C" does not provide data types of
fixed length which are identical on all platforms, this is done here.
For most 16/32 controllers, the settings will work fine. However, if
you have similar defines in other sections of your program, you might
want to change or relocate these defines, e.g. in a TYPE.h file.
*/
 
#define I16P I16              /*   signed 16 bits OR MORE ! */
#define U16P U16              /* unsigned 16 bits OR MORE ! */

/*
  ********************************************************************
  *                                                                  *
  *               Settings for windows simulation                    *
  *                                                                  *
  ********************************************************************

Some settings in the configuration may conflict with the values required
in the Simulation. This is why we ignore the target settings for data
types and use the correct settings for the simulation.
(U32 could be defined as long, which would yield a 64 bit type on
the PC)
*/

#ifdef WIN32
  #pragma warning( disable : 4244 )  // Disable warning messages in simulation
  #pragma warning( disable : 4761 )  // Disable warning "integral size mismatch in argument; conversion supplied"
#endif                                      


/*      *************************************************************
        *                                                           *
        *                Constants                                  *
        *                                                           *
        *************************************************************
*/
#define LCD_ERR0 (0x10)
#define LCD_ERR_CONTROLLER_NOT_FOUND (LCD_ERR0+1)
#define LCD_ERR_MEMORY               (LCD_ERR0+2)

/*
      *********************************
      *                               *
      *      Drawing modes            *
      *                               *
      *********************************
*/

#define LCD_DRAWMODE_NORMAL (0)
#define LCD_DRAWMODE_XOR    (1<<0)
#define LCD_DRAWMODE_TRANS  (1<<1)
#define LCD_DRAWMODE_REV    (1<<2)


 
/*      *************************************************************
        *                                                           *
        *                Typedefs                                   *
        *                                                           *
        *************************************************************
*/

typedef int LCD_DRAWMODE;
typedef U32 LCD_COLOR;

 
/********************************************************
*
*     Data structures
*
*********************************************************
*/

typedef struct { I16P x,y; } GUI_POINT;
typedef struct { I16 x0,y0,x1,y1; } LCD_RECT;
/*typedef struct { GUI_POINT P0, P1; } LCD_RECT; */

typedef struct {
  int              NumEntries; 
  char             HasTrans;         
  const LCD_COLOR GUI_UNI_PTR * pPalEntries; 
} LCD_LOGPALETTE; 

/* This is used for the simulation only ! */
typedef struct {
  int x,y;
  unsigned char KeyStat;
} LCD_tMouseState;

/*********************************************************************
*
*     Index2Color

  This function needs to be int the public part of the software
  since it is needed by the simulation. Most other driver
  functions are hidden in the private header file.
*/

typedef LCD_COLOR      tLCDDEV_Index2Color  (int Index);
typedef unsigned int   tLCDDEV_Color2Index  (LCD_COLOR Color);
typedef unsigned int   tLCDDEV_GetIndexMask (void);
LCD_COLOR      LCD_L0_Index2Color  (int Index);
LCD_COLOR      LCD_L0_1_Index2Color(int Index);
LCD_COLOR      LCD_L0_2_Index2Color(int Index);
LCD_COLOR      LCD_L0_3_Index2Color(int Index);
LCD_COLOR      LCD_L0_4_Index2Color(int Index);
LCD_COLOR      LCD_L0_5_Index2Color(int Index);
unsigned int   LCD_L0_Color2Index  (LCD_COLOR Color);
unsigned int   LCD_L0_1_Color2Index(LCD_COLOR Color);
unsigned int   LCD_L0_2_Color2Index(LCD_COLOR Color);
unsigned int   LCD_L0_3_Color2Index(LCD_COLOR Color);
unsigned int   LCD_L0_4_Color2Index(LCD_COLOR Color);
unsigned int   LCD_L0_5_Color2Index(LCD_COLOR Color);
unsigned int   LCD_L0_GetIndexMask  (void);
unsigned int   LCD_L0_1_GetIndexMask(void);
unsigned int   LCD_L0_2_GetIndexMask(void);
unsigned int   LCD_L0_3_GetIndexMask(void);
unsigned int   LCD_L0_4_GetIndexMask(void);
unsigned int   LCD_L0_5_GetIndexMask(void);


/*********************************************************************
*
*     Color conversion API tables
*/

typedef struct {
  tLCDDEV_Color2Index*  pfColor2Index;
  tLCDDEV_Index2Color*  pfIndex2Color;
  tLCDDEV_GetIndexMask* pfGetIndexMask;
} LCD_API_COLOR_CONV;

extern const LCD_API_COLOR_CONV LCD_API_ColorConv_1;
extern const LCD_API_COLOR_CONV LCD_API_ColorConv_2;
extern const LCD_API_COLOR_CONV LCD_API_ColorConv_4;
extern const LCD_API_COLOR_CONV LCD_API_ColorConv_8666;

#define GUI_COLOR_CONV_1    &LCD_API_ColorConv_1
#define GUI_COLOR_CONV_2    &LCD_API_ColorConv_2
#define GUI_COLOR_CONV_4    &LCD_API_ColorConv_4
#define GUI_COLOR_CONV_8666 &LCD_API_ColorConv_8666

/*********************************************************************
*
*      LCDDEV function table
*
**********************************************************************

  Below the routines which need to in an LCDDEV routine table are
  defined. All of these routines have to be in the low-level driver
  (LCD_L0) or in the memory device which can be used to replace the
  driver.
  The one exception to this is the SetClipRect routine, which would
  be identical for all drivers and is therefor contained in the
  level above (LCD).
*/
typedef void         tLCDDEV_DrawHLine    (int x0, int y0,  int x1);
typedef void         tLCDDEV_DrawVLine    (int x , int y0,  int y1);
typedef void         tLCDDEV_FillRect     (int x0, int y0, int x1, int y1);
typedef unsigned int tLCDDEV_GetPixelIndex(int x, int y);
typedef void         tLCDDEV_SetPixelIndex(int x, int y, int ColorIndex);
typedef void         tLCDDEV_XorPixel     (int x, int y);
typedef void         tLCDDEV_FillPolygon  (const GUI_POINT* pPoints, int NumPoints, int x0, int y0);
typedef void         tLCDDEV_FillPolygonAA(const GUI_POINT* pPoints, int NumPoints, int x0, int y0);
typedef void         tLCDDEV_GetRect      (LCD_RECT*pRect);
typedef int          tLCDDEV_Init         (void);
typedef void         tLCDDEV_On           (void);
typedef void         tLCDDEV_Off          (void);
typedef void         tLCDDEV_SetLUTEntry  (U8 Pos, LCD_COLOR color);
typedef void *       tLCDDEV_GetDevFunc   (int Index);
typedef void         tLCDDEV_SetOrg       (int x, int y);

/*********************************************************************
*
*     Memory device API tables
*/
#if GUI_COMPILER_SUPPORTS_FP
  typedef struct tLCDDEV_APIList_struct tLCDDEV_APIList;
#endif

typedef void tLCDDEV_DrawBitmap   (int x0, int y0, int xsize, int ysize,
                       int BitsPerPixel, int BytesPerLine,
                       const U8 GUI_UNI_PTR * pData, int Diff,
                       const void* pTrans);   /* Really LCD_PIXELINDEX, but is void to avoid compiler warnings*/

struct tLCDDEV_APIList_struct {
  tLCDDEV_Color2Index*        pfColor2Index;
  tLCDDEV_Index2Color*        pfIndex2Color;
  tLCDDEV_GetIndexMask*       pfGetIndexMask;
  tLCDDEV_DrawBitmap*         pfDrawBitmap;
  tLCDDEV_DrawHLine*          pfDrawHLine;
  tLCDDEV_DrawVLine*          pfDrawVLine;
  tLCDDEV_FillRect*           pfFillRect;
  tLCDDEV_GetPixelIndex*      pfGetPixelIndex;
  tLCDDEV_GetRect*            pfGetRect;
  tLCDDEV_SetPixelIndex*      pfSetPixelIndex;
  tLCDDEV_XorPixel*           pfXorPixel;
  tLCDDEV_SetLUTEntry*        pfSetLUTEntry;
  tLCDDEV_GetDevFunc*         pfGetDevFunc;
  #if GUI_SUPPORT_MEMDEV
    tLCDDEV_FillPolygon*      pfFillPolygon;
    tLCDDEV_FillPolygonAA*    pfFillPolygonAA;
    const tLCDDEV_APIList*    pMemDevAPI;
    unsigned                  BitsPerPixel;
  #endif
};
#if GUI_COMPILER_SUPPORTS_FP
  extern const struct tLCDDEV_APIList_struct GUI_MEMDEV__APIList1;
  extern const struct tLCDDEV_APIList_struct GUI_MEMDEV__APIList8;
  extern const struct tLCDDEV_APIList_struct GUI_MEMDEV__APIList16;
  extern const struct tLCDDEV_APIList_struct GUI_MEMDEV__APIList32;

  #define GUI_MEMDEV_APILIST_1  &GUI_MEMDEV__APIList1
  #define GUI_MEMDEV_APILIST_8  &GUI_MEMDEV__APIList8
  #define GUI_MEMDEV_APILIST_16 &GUI_MEMDEV__APIList16
  #define GUI_MEMDEV_APILIST_32 &GUI_MEMDEV__APIList32
#endif

/*      *************************************************************
        *                                                           *
        *                   Defines                                 *
        *                                                           *
        *    for device capabilities                                *
        *                                                           *
        *************************************************************

The following is the list of device capabilities which can, but do
not have to be implemented in the driver. This way the driver can be
enhanced in the future without affecting the driver interface,
keeping older drivers compatible.
More DevCaps can always be added in the future, as older drivers
are guaranteed to return 0 for all unimplemented features or queries.

The values below define the legal parameters to the LCD_GetDeviceCaps
and the LCD_GetpCapFunc routines.
*/

#define LCD_DEVCAP_NUMCOLORS    0x0     /* Quest number of colors
                                           which LCD can display */
#define LCD_DEVCAP_XSIZE        0x1     /* Quest horiz. res. of display */