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SDL_gemvideo.h
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SDL_gemvideo.h
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2004 Sam Lantinga
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 */
Uint16 pitch; /* Line length */
Uint16 format; /* Screen format */
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 */
/* GEM infos */
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 refresh_name; /* Change window title ? */
SDL_bool window_fulled; /* Window maximized ? */
SDL_bool mouse_relative; /* Report relative mouse movement */
SDL_bool locked; /* AES locked for fullscreen ? */
SDL_bool lock_redraw; /* Prevent redraw till buffers are setup */
short message[8]; /* To self-send an AES message */
SDL_bool fullscreen; /* Fullscreen or windowed mode ? */
SDL_Rect *SDL_modelist[SDL_NUMMODES+1]; /* Mode list */
SDL_Surface *icon; /* The icon */
};
/* 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_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_refresh_name (this->hidden->refresh_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_lock_redraw (this->hidden->lock_redraw)
#define GEM_message (this->hidden->message)
#define SDL_modelist (this->hidden->SDL_modelist)
#define GEM_icon (this->hidden->icon)
#define GEM_fullscreen (this->hidden->fullscreen)
#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 */