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The Socrates Gameboy Advance Development Engine

The SGADE is a development library for the Nintendo Gameboy Advance. It's free for all uses and is distributed without guarantees. For more information visit the SGADE page.

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SoDisplay.h

Go to the documentation of this file.

// ----------------------------------------------------------------------------
// ----------------------------------------------------------------------------

#ifndef SO_DISPLAY_H
#define SO_DISPLAY_H

#ifdef __cplusplus
    extern "C" {
#endif


// ---------------------------------------------------------------------------- //! @{
// ----------------------------------------------------------------------------

// ----------------------------------------------------------------------------
// Includes
// ----------------------------------------------------------------------------

#include "SoSystem.h"

// ----------------------------------------------------------------------------
// Defines
// ----------------------------------------------------------------------------

#define SO_REG_DISP_CNT             (*(volatile u16*)0x4000000) 

#define SO_REG_DISP_STAT            (*(volatile u16*)0x4000004) 

#define SO_REG_SCANLINE_COUNT       (*(volatile u16*)0x4000006) 

#define     SO_REG_DISP_MOSAIC_W        (*(volatile u16*)0x400004C) 

extern u16 SO_REG_DISP_MOSAIC_RW;

// Screen dimensions;                   
#define SO_SCREEN_WIDTH             240                         
#define SO_SCREEN_HALF_WIDTH        (SO_SCREEN_WIDTH / 2)       
#define SO_SCREEN_HEIGHT            160                         
#define SO_SCREEN_HALF_HEIGHT       (SO_SCREEN_HEIGHT / 2)      

// Colors
#define SO_RED                      (SO_5_BITS)                     
#define SO_GREEN                    (SO_5_BITS << 5)                
#define SO_BLUE                     (SO_5_BITS << 10)               
#define SO_WHITE                    (SO_RED | SO_GREEN | SO_BLUE)   
#define SO_BLACK                    0                               
#define SO_YELLOW                   (SO_RED | SO_GREEN)             
#define SO_CYAN                     (SO_BLUE | SO_GREEN)            
#define SO_MAGENTA                  (SO_RED | SO_BLUE)              
#define SO_PURPLE                   SO_MAGENTA                      

// ----------------------------------------------------------------------------
// Macros
// ----------------------------------------------------------------------------

#define SO_RGB( r, g, b )       (((b)<<10)+((g)<<5)+(r))    
#define SO_RGB_GET_R( c )       (((c)&(31    ))    )        
#define SO_RGB_GET_G( c )       (((c)&(31<< 5))>> 5)        
#define SO_RGB_GET_B( c )       (((c)&(31<<10))>>10)        

#define SO_SCREEN_HALF_WIDTH_MULTIPLY( y ) (((y)<<7)-((y)<<3))  

// ----------------------------------------------------------------------------
// Functions
// ----------------------------------------------------------------------------

void SoDisplayInitialize(         void );

void SoDisplayEnable(u32 a_Enable);

void SoDisplaySetMode(u32 a_Mode);
u32  SoDisplayGetMode(void);

u32  SoDisplayGetVCounter(        void );

bool SoDisplayIsInVBlank(         void );
bool SoDisplayIsInHBlank(         void );

void SoDisplayWaitForVBlankStart( void );
void SoDisplayWaitForVBlankEnd(   void );

// ----------------------------------------------------------------------------
// EOF
// ----------------------------------------------------------------------------


#ifdef __cplusplus
} // extern "C"
#endif
    
#endif

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Copyright 2002 by the SGADE authors. See SoLicense.h or Visit the SGADE page for more information.

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