/*

SDL - Simple DirectMedia Layer

This library is free software; you can redistribute it and/or

This library 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

You should have received a copy of the GNU Lesser General Public

License along with this library; if not, write to the Free Software

Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA

Sam Lantinga

slouken@libsdl.org

*/

#ifndef _SDL_gapivideo_h

#define _SDL_gapivideo_h

#include "SDL_mouse.h"

#include "SDL_mutex.h"

/* From gx.h, since it's not really C compliant */

struct GXDisplayProperties {

DWORD cxWidth;

DWORD cyHeight; // notice lack of 'th' in the word height.

long cbxPitch; // number of bytes to move right one x pixel - can be negative.

long cbyPitch; // number of bytes to move down one y pixel - can be negative.

long cBPP; // # of bits in each pixel

DWORD ffFormat; // format flags.

};

struct GXKeyList {

short vkUp; // key for up

POINT ptUp; // x,y position of key/button. Not on screen but in screen coordinates.

short vkDown;

POINT ptDown;

short vkLeft;

POINT ptLeft;

short vkRight;

POINT ptRight;

short vkA;

POINT ptA;

short vkB;

POINT ptB;

short vkC;

POINT ptC;

short vkStart;

POINT ptStart;

};

typedef int (*PFNGXOpenDisplay)(HWND hWnd, DWORD dwFlags);

typedef int (*PFNGXCloseDisplay)();

typedef void* (*PFNGXBeginDraw)();

typedef int (*PFNGXEndDraw)();

typedef int (*PFNGXOpenInput)();

typedef int (*PFNGXCloseInput)();

typedef struct GXDisplayProperties (*PFNGXGetDisplayProperties)();

typedef struct GXKeyList (*PFNGXGetDefaultKeys)(int iOptions);

typedef int (*PFNGXSuspend)();

typedef int (*PFNGXResume)();

typedef int (*PFNGXSetViewport)( DWORD dwTop, DWORD dwHeight, DWORD dwReserved1, DWORD dwReserved2 );

typedef BOOL (*PFNGXIsDisplayDRAMBuffer)();

struct GapiFunc

{

PFNGXOpenDisplay GXOpenDisplay;

PFNGXCloseDisplay GXCloseDisplay;

PFNGXBeginDraw GXBeginDraw;

PFNGXEndDraw GXEndDraw;

PFNGXOpenInput GXOpenInput;

PFNGXCloseInput GXCloseInput;

PFNGXGetDisplayProperties GXGetDisplayProperties;

PFNGXGetDefaultKeys GXGetDefaultKeys;

PFNGXSuspend GXSuspend;

PFNGXResume GXResume;

PFNGXSetViewport GXSetViewport;

PFNGXIsDisplayDRAMBuffer GXIsDisplayDRAMBuffer;

};

#define kfLandscape 0x8 // Screen is rotated 270 degrees

#define kfPalette 0x10 // Pixel values are indexes into a palette

#define kfDirect 0x20 // Pixel values contain actual level information

#define kfDirect555 0x40 // 5 bits each for red, green and blue values in a pixel.

#define kfDirect565 0x80 // 5 red bits, 6 green bits and 5 blue bits per pixel

#define kfDirect888 0x100 // 8 bits each for red, green and blue values in a pixel.

#define kfDirect444 0x200 // 4 red, 4 green, 4 blue

#define kfDirectInverted 0x400

#define GX_FULLSCREEN 0x01 // for OpenDisplay()

#define GX_NORMALKEYS 0x02

#define GX_LANDSCAPEKEYS 0x03

/* GAPI video mode */

typedef enum {

GAPI_NONE = 0,

GAPI_DIRECT_565,

GAPI_DIRECT_555,

GAPI_MONO,

GAPI_PALETTE

} GAPIVideoMode;

typedef unsigned short PIXEL;

/* Private display data

begin with DIB private structure to allow DIB events code sharing

*/

struct GapiInfo {

/* Rotation which has to be applied to the key (arrow keys) and mouse events measured in quarters of a circle

* counter clockwise */

int coordinateTransform;

char hiresFix; /* using hires mode without defining hires resource */

int invert; //TODO this is only written but never read, so it should be removed

#define NUM_MODELISTS 4 /* 8, 16, 24, and 32 bits-per-pixel */

int SDL_nummodes[NUM_MODELISTS];

SDL_Rect **SDL_modelist[NUM_MODELISTS];

// The orientation of the video mode user wants to get

// Probably restricted to UP and RIGHT

int alreadyGXOpened;

int w, h;

// The orientation of GAPI framebuffer.

// Never changes on the same device.

PIXEL *videoMem;

BOOL needUpdate;

struct GXKeyList keyList;

struct GapiFunc gxFunc;

struct GXDisplayProperties gxProperties;

int colorscale;

int dstLineStep; // in bytes

int dstPixelStep; // in bytes

int startOffset; // in bytes

int useVga;

};

#endif /* _SDL_gapivideo_h */