/*

SDL - Simple DirectMedia Layer

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

modify it under the terms of the GNU Library General Public

License as published by the Free Software Foundation; either

version 2 of the License, or (at your option) any later version.

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

Library General Public License for more details.

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

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

Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

Sam Lantinga

slouken@libsdl.org

*/

#ifdef SAVE_RCSID

static char rcsid =

"@(#) $Id$";

#endif

#ifndef _SDL_gemvideo_h

#define _SDL_gemvideo_h

#include "SDL_sysvideo.h"

#include "SDL_mutex.h"

/* Hidden "this" pointer for the video functions */

#define _THIS SDL_VideoDevice *this

/* Functions prototypes */

void GEM_wind_redraw(_THIS, int winhandle, short *inside);

/* Private display data */

#define B2S_C2P_1TO2 (1<<0) /* C2P convert buffer 1 to buffer 2 */

#define B2S_C2P_1TOS (1<<1) /* C2P convert buffer 1 to screen */

#define B2S_VROCPYFM_1TOS (1<<2) /* vro_cpyfm() buffer 1 to screen */

#define B2S_VROCPYFM_2TOS (1<<3) /* vro_cpyfm() buffer 2 to screen */

#define SDL_NUMMODES 1 /* Fullscreen */

struct SDL_PrivateVideoData {

Uint16 buf2scr_ops; /* Operations to get buffer to screen */

void *buffer1; /* Our shadow buffers */

void *buffer2;

/* VDI infos */

short vdi_handle; /* VDI handle */

short full_w, full_h; /* Fullscreen size */

short bpp; /* Colour depth */

short pixelsize; /* Bytes per pixel */

short old_numcolors; /* Number of colors in saved palette */

void *screen; /* Screen address */

Uint32 red, green, blue, alpha; /* Screen components */

Uint32 screensize;

short blit_coords[8]; /* Coordinates for bitblt */

MFDB src_mfdb, dst_mfdb; /* VDI MFDB for bitblt */

Uint16 old_palette[256][3]; /* Saved current palette */

Uint16 cur_palette[256][3]; /* SDL application palette */

/* Function to set/restore palette */

void (*setpalette)(_THIS, Uint16 newpal[256][3]);

short desk_x, desk_y; /* Desktop properties */

short desk_w, desk_h;

short win_handle; /* Our window handle */

int window_type; /* Window type */

const char *title_name; /* Window title */

const char *icon_name; /* Icon title */

short version; /* AES version */

short wfeatures; /* AES window features */

SDL_bool window_fulled; /* Window maximized ? */

SDL_bool mouse_relative; /* Report relative mouse movement */

SDL_bool locked; /* AES locked for fullscreen ? */

SDL_bool fullscreen; /* Fullscreen or windowed mode ? */

};

/* Hidden structure -> variables names */

#define VDI_handle (this->hidden->vdi_handle)

#define VDI_w (this->hidden->full_w)

#define VDI_h (this->hidden->full_h)

#define VDI_bpp (this->hidden->bpp)

#define VDI_pixelsize (this->hidden->pixelsize)

#define VDI_oldnumcolors (this->hidden->old_numcolors)

#define VDI_oldpalette (this->hidden->old_palette)

#define VDI_curpalette (this->hidden->cur_palette)

#define VDI_setpalette (this->hidden->setpalette)

#define VDI_pitch (this->hidden->pitch)

#define VDI_format (this->hidden->format)

#define VDI_screen (this->hidden->screen)

#define VDI_redmask (this->hidden->red)

#define VDI_greenmask (this->hidden->green)

#define VDI_bluemask (this->hidden->blue)

#define VDI_alphamask (this->hidden->alpha)

#define VDI_screensize (this->hidden->screensize)

#define VDI_src_mfdb (this->hidden->src_mfdb)

#define VDI_dst_mfdb (this->hidden->dst_mfdb)

#define VDI_blit_coords (this->hidden->blit_coords)

#define GEM_desk_x (this->hidden->desk_x)

#define GEM_desk_y (this->hidden->desk_y)

#define GEM_desk_w (this->hidden->desk_w)

#define GEM_desk_h (this->hidden->desk_h)

#define GEM_handle (this->hidden->win_handle)

#define GEM_win_type (this->hidden->window_type)

#define GEM_title_name (this->hidden->title_name)

#define GEM_icon_name (this->hidden->icon_name)

#define GEM_version (this->hidden->version)

#define GEM_wfeatures (this->hidden->wfeatures)

#define GEM_win_fulled (this->hidden->window_fulled)

#define GEM_mouse_relative (this->hidden->mouse_relative)

#define GEM_locked (this->hidden->locked)

#define GEM_buffer1 (this->hidden->buffer1)

#define GEM_buffer2 (this->hidden->buffer2)

#define GEM_bufops (this->hidden->buf2scr_ops)

#define VDI_FBMASK(amask, rmask, gmask, bmask) \

VDI_alphamask = (amask); \

VDI_redmask = (rmask); \

VDI_greenmask = (gmask); \

VDI_bluemask = (bmask);

/*

Possible buffer to screen operations:

TC: 8 (chunky),15,16,24,32 bpp

8I: 8 bpp planes

FB: screen framebuffer address available

FS: fullscreen

TC, FB, FS:

- draw to screen

8I, FB, FS:

- draw to buffer 1

- C2P from buffer 1 to screen

TC, !FB, FS:

- draw to buffer 1

- vro_cpyfm() from buffer 1 to screen

8I, !FB, FS:

- draw to buffer 1

- C2P from buffer 1 to buffer 2

- vro_cpyfm() from buffer 2 to screen

TC, FB, !FS:

- draw to buffer 1

- vro_cpyfm() from buffer 1 to screen

8I, FB, !FS:

- draw to buffer 1

- C2P from buffer 1 to buffer 2

- vro_cpyfm() from buffer 2 to screen

TC, !FB, !FS:

- draw to buffer 1

- vro_cpyfm() from buffer 1 to screen

8I, !FB, !FS:

- draw to buffer 1

- C2P from buffer 1 to buffer 2

- vro_cpyfm() from buffer 2 to screen

*/

#endif /* _SDL_gemvideo_h */