SDL_xbios.c
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/*
SDL - Simple DirectMedia Layer
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Copyright (C) 1997-2012 Sam Lantinga
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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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
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Lesser General Public License for more details.
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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
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Sam Lantinga
slouken@libsdl.org
*/
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#include "SDL_config.h"
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/*
* Xbios SDL video driver
*
* Patrice Mandin
*/
#include <sys/stat.h>
#include <unistd.h>
/* Mint includes */
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#include <mint/cookie.h>
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#include <mint/osbind.h>
#include <mint/falcon.h>
#include "SDL_video.h"
#include "SDL_mouse.h"
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#include "../SDL_sysvideo.h"
#include "../SDL_pixels_c.h"
#include "../../events/SDL_events_c.h"
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#include "../ataricommon/SDL_ataric2p_s.h"
#include "../ataricommon/SDL_atarievents_c.h"
#include "../ataricommon/SDL_atarimxalloc_c.h"
#include "../ataricommon/SDL_atarigl_c.h"
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#include "SDL_xbios.h"
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#include "SDL_xbios_blowup.h"
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#include "SDL_xbios_centscreen.h"
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#include "SDL_xbios_sb3.h"
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#include "SDL_xbios_tveille.h"
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#include "SDL_xbios_milan.h"
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#define XBIOS_VID_DRIVER_NAME "xbios"
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#ifndef C_fVDI
#define C_fVDI 0x66564449L
#endif
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/* Debug print info */
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#if 0
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#define DEBUG_PRINT(what) \
{ \
printf what; \
}
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#define DEBUG_VIDEO_XBIOS 1
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#else
#define DEBUG_PRINT(what)
#undef DEBUG_VIDEO_XBIOS
#endif
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/* Initialization/Query functions */
static int XBIOS_VideoInit(_THIS, SDL_PixelFormat *vformat);
static SDL_Rect **XBIOS_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags);
static SDL_Surface *XBIOS_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags);
static int XBIOS_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors);
static void XBIOS_VideoQuit(_THIS);
/* Hardware surface functions */
static int XBIOS_AllocHWSurface(_THIS, SDL_Surface *surface);
static int XBIOS_LockHWSurface(_THIS, SDL_Surface *surface);
static int XBIOS_FlipHWSurface(_THIS, SDL_Surface *surface);
static void XBIOS_UnlockHWSurface(_THIS, SDL_Surface *surface);
static void XBIOS_FreeHWSurface(_THIS, SDL_Surface *surface);
static void XBIOS_UpdateRects(_THIS, int numrects, SDL_Rect *rects);
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#if SDL_VIDEO_OPENGL
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/* OpenGL functions */
static void XBIOS_GL_SwapBuffers(_THIS);
#endif
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/* Default list of video modes */
static const xbiosmode_t ttmodes[2]={
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{TT_LOW,320,480,8, XBIOSMODE_C2P},
{TT_LOW,320,240,8, XBIOSMODE_C2P|XBIOSMODE_DOUBLELINE}
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};
static const xbiosmode_t falconrgbmodes[16]={
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{BPS16|COL80|OVERSCAN|VERTFLAG,768,480,16,0},
{BPS16|COL80|OVERSCAN,768,240,16,0},
{BPS16|COL80|VERTFLAG,640,400,16,0},
{BPS16|COL80,640,200,16,0},
{BPS16|OVERSCAN|VERTFLAG,384,480,16,0},
{BPS16|OVERSCAN,384,240,16,0},
{BPS16|VERTFLAG,320,400,16,0},
{BPS16,320,200,16,0},
{BPS8|COL80|OVERSCAN|VERTFLAG,768,480,8,XBIOSMODE_C2P},
{BPS8|COL80|OVERSCAN,768,240,8,XBIOSMODE_C2P},
{BPS8|COL80|VERTFLAG,640,400,8,XBIOSMODE_C2P},
{BPS8|COL80,640,200,8,XBIOSMODE_C2P},
{BPS8|OVERSCAN|VERTFLAG,384,480,8,XBIOSMODE_C2P},
{BPS8|OVERSCAN,384,240,8,XBIOSMODE_C2P},
{BPS8|VERTFLAG,320,400,8,XBIOSMODE_C2P},
{BPS8,320,200,8,XBIOSMODE_C2P}
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};
static const xbiosmode_t falconvgamodes[6]={
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{BPS16,320,480,16,0},
{BPS16|VERTFLAG,320,240,16,0},
{BPS8|COL80,640,480,8,XBIOSMODE_C2P},
{BPS8|COL80|VERTFLAG,640,240,8,XBIOSMODE_C2P},
{BPS8,320,480,8,XBIOSMODE_C2P},
{BPS8|VERTFLAG,320,240,8,XBIOSMODE_C2P}
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/* Xbios driver bootstrap functions */
static int XBIOS_Available(void)
{
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long cookie_vdo, /*cookie_mil,*/ cookie_hade, cookie_scpn;
long cookie_fvdi;
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const char *envr = SDL_getenv("SDL_VIDEODRIVER");
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/* Milan/Hades Atari clones do not have an Atari video chip */
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if ( /*(Getcookie(C__MIL, &cookie_mil) == C_FOUND) ||*/
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(Getcookie(C_hade, &cookie_hade) == C_FOUND) ) {
return 0;
}
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/* fVDI means graphic card, so no Xbios with it */
if (Getcookie(C_fVDI, &cookie_fvdi) == C_FOUND) {
if (!envr) {
return 0;
}
if (SDL_strcmp(envr, XBIOS_VID_DRIVER_NAME)!=0) {
return 0;
}
/* Except if we force Xbios usage, through env var */
}
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/* Cookie _VDO present ? if not, assume ST machine */
if (Getcookie(C__VDO, &cookie_vdo) != C_FOUND) {
cookie_vdo = VDO_ST << 16;
}
/* Test if we have a monochrome monitor plugged in */
switch( cookie_vdo >>16) {
case VDO_ST:
case VDO_STE:
if ( Getrez() == (ST_HIGH>>8) )
return 0;
break;
case VDO_TT:
if ( (EgetShift() & ES_MODE) == TT_HIGH)
return 0;
break;
case VDO_F30:
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if ( VgetMonitor() == MONITOR_MONO)
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return 0;
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if (Getcookie(C_SCPN, &cookie_scpn) == C_FOUND) {
if (!SDL_XBIOS_SB3Usable((scpn_cookie_t *)cookie_scpn)) {
return 0;
}
}
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case VDO_MILAN:
break;
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default:
return 0;
}
return 1;
}
static void XBIOS_DeleteDevice(SDL_VideoDevice *device)
{
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SDL_free(device->hidden);
SDL_free(device);
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}
static SDL_VideoDevice *XBIOS_CreateDevice(int devindex)
{
SDL_VideoDevice *device;
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long cookie_cvdo;
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/* Initialize all variables that we clean on shutdown */
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device = (SDL_VideoDevice *)SDL_malloc(sizeof(SDL_VideoDevice));
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if ( device ) {
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SDL_memset(device, 0, (sizeof *device));
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device->hidden = (struct SDL_PrivateVideoData *)
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SDL_malloc((sizeof *device->hidden));
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device->gl_data = (struct SDL_PrivateGLData *)
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SDL_malloc((sizeof *device->gl_data));
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}
if ( (device == NULL) || (device->hidden == NULL) ) {
SDL_OutOfMemory();
if ( device ) {
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SDL_free(device);
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}
return(0);
}
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SDL_memset(device->hidden, 0, (sizeof *device->hidden));
SDL_memset(device->gl_data, 0, sizeof(*device->gl_data));
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/* Video functions */
device->VideoInit = XBIOS_VideoInit;
device->ListModes = XBIOS_ListModes;
device->SetVideoMode = XBIOS_SetVideoMode;
device->SetColors = XBIOS_SetColors;
device->UpdateRects = NULL;
device->VideoQuit = XBIOS_VideoQuit;
device->AllocHWSurface = XBIOS_AllocHWSurface;
device->LockHWSurface = XBIOS_LockHWSurface;
device->UnlockHWSurface = XBIOS_UnlockHWSurface;
device->FlipHWSurface = XBIOS_FlipHWSurface;
device->FreeHWSurface = XBIOS_FreeHWSurface;
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#if SDL_VIDEO_OPENGL
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/* OpenGL functions */
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device->GL_LoadLibrary = SDL_AtariGL_LoadLibrary;
device->GL_GetProcAddress = SDL_AtariGL_GetProcAddress;
device->GL_GetAttribute = SDL_AtariGL_GetAttribute;
device->GL_MakeCurrent = SDL_AtariGL_MakeCurrent;
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device->GL_SwapBuffers = XBIOS_GL_SwapBuffers;
#endif
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/* Events */
device->InitOSKeymap = Atari_InitOSKeymap;
device->PumpEvents = Atari_PumpEvents;
device->free = XBIOS_DeleteDevice;
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/* Setup device specific functions, default to ST for everything */
if (Getcookie(C__VDO, &cookie_cvdo) != C_FOUND) {
cookie_cvdo = VDO_ST << 16;
}
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SDL_XBIOS_VideoInit_ST(device, cookie_cvdo);
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switch (cookie_cvdo>>16) {
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case VDO_ST:
case VDO_STE:
/* Already done as default */
break;
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case VDO_MILAN:
SDL_XBIOS_VideoInit_Milan(device);
break;
}
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return device;
}
VideoBootStrap XBIOS_bootstrap = {
XBIOS_VID_DRIVER_NAME, "Atari Xbios driver",
XBIOS_Available, XBIOS_CreateDevice
};
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void SDL_XBIOS_AddMode(_THIS, int actually_add, const xbiosmode_t *modeinfo)
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int i = 0;
switch(modeinfo->depth) {
case 15:
case 16:
i = 1;
break;
case 24:
i = 2;
break;
case 32:
i = 3;
break;
}
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if ( actually_add ) {
SDL_Rect saved_rect[2];
xbiosmode_t saved_mode[2];
int b, j;
/* Add the mode, sorted largest to smallest */
b = 0;
j = 0;
while ( (SDL_modelist[i][j]->w > modeinfo->width) ||
(SDL_modelist[i][j]->h > modeinfo->height) ) {
++j;
}
/* Skip modes that are already in our list */
if ( (SDL_modelist[i][j]->w == modeinfo->width) &&
(SDL_modelist[i][j]->h == modeinfo->height) ) {
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return;
}
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/* Insert the new mode */
saved_rect[b] = *SDL_modelist[i][j];
SDL_memcpy(&saved_mode[b], SDL_xbiosmode[i][j], sizeof(xbiosmode_t));
SDL_modelist[i][j]->w = modeinfo->width;
SDL_modelist[i][j]->h = modeinfo->height;
SDL_memcpy(SDL_xbiosmode[i][j], modeinfo, sizeof(xbiosmode_t));
/* Everybody scoot down! */
if ( saved_rect[b].w && saved_rect[b].h ) {
for ( ++j; SDL_modelist[i][j]->w; ++j ) {
saved_rect[!b] = *SDL_modelist[i][j];
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SDL_memcpy(&saved_mode[!b], SDL_xbiosmode[i][j], sizeof(xbiosmode_t));
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*SDL_modelist[i][j] = saved_rect[b];
SDL_memcpy(SDL_xbiosmode[i][j], &saved_mode[b], sizeof(xbiosmode_t));
b = !b;
}
*SDL_modelist[i][j] = saved_rect[b];
SDL_memcpy(SDL_xbiosmode[i][j], &saved_mode[b], sizeof(xbiosmode_t));
}
} else {
++SDL_nummodes[i];
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static void XBIOS_ListTTModes(_THIS, int actually_add)
{
int i;
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for (i=0; i<2; i++) {
SDL_XBIOS_AddMode(this, actually_add, &ttmodes[i]);
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}
static void XBIOS_ListFalconRgbModes(_THIS, int actually_add)
{
int i;
for (i=0; i<16; i++) {
xbiosmode_t modeinfo;
SDL_memcpy(&modeinfo, &falconrgbmodes[i], sizeof(xbiosmode_t));
modeinfo.number &= ~(VGA|PAL);
modeinfo.number |= XBIOS_oldvmode & (VGA|PAL);
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SDL_XBIOS_AddMode(this, actually_add, &modeinfo);
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}
static void XBIOS_ListFalconVgaModes(_THIS, int actually_add)
{
int i;
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for (i=0; i<6; i++) {
xbiosmode_t modeinfo;
SDL_memcpy(&modeinfo, &falconvgamodes[i], sizeof(xbiosmode_t));
modeinfo.number &= ~(VGA|PAL);
modeinfo.number |= XBIOS_oldvmode & (VGA|PAL);
SDL_XBIOS_AddMode(this, actually_add, &modeinfo);
}
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static int XBIOS_VideoInit(_THIS, SDL_PixelFormat *vformat)
{
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long cookie_blow, cookie_scpn, cookie_cnts;
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/* Initialize all variables that we clean on shutdown */
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for ( i=0; i<NUM_MODELISTS; ++i ) {
SDL_nummodes[i] = 0;
SDL_modelist[i] = NULL;
SDL_xbiosmode[i] = NULL;
}
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/* Cookie _VDO present ? if not, assume ST machine */
if (Getcookie(C__VDO, &XBIOS_cvdo) != C_FOUND) {
XBIOS_cvdo = VDO_ST << 16;
}
/* Allocate memory for old palette */
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XBIOS_oldpalette = (void *)SDL_malloc(256*sizeof(long));
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if ( !XBIOS_oldpalette ) {
SDL_SetError("Unable to allocate memory for old palette\n");
return(-1);
}
/* Initialize video mode list */
/* and save current screen status (palette, screen address, video mode) */
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XBIOS_centscreen = SDL_FALSE;
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XBIOS_oldvbase = Physbase();
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/* Determine the current screen size */
this->info.current_w = 0;
this->info.current_h = 0;
/* Determine the screen depth (use default 8-bit depth) */
vformat->BitsPerPixel = 8;
/* First allocate room for needed video modes */
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switch (XBIOS_cvdo >>16) {
case VDO_ST:
case VDO_STE:
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(*XBIOS_saveMode)(this, vformat);
(*XBIOS_listModes)(this, 0);
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break;
case VDO_TT:
XBIOS_oldvmode=EgetShift();
switch(XBIOS_oldvmode & ES_MODE) {
case TT_LOW:
XBIOS_oldnumcol=256;
break;
case ST_LOW:
case TT_MED:
XBIOS_oldnumcol=16;
break;
case ST_MED:
XBIOS_oldnumcol=4;
break;
case ST_HIGH:
case TT_HIGH:
XBIOS_oldnumcol=2;
break;
}
if (XBIOS_oldnumcol) {
EgetPalette(0, XBIOS_oldnumcol, XBIOS_oldpalette);
}
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XBIOS_ListTTModes(this, 0);
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break;
case VDO_F30:
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XBIOS_oldvmode=VsetMode(-1);
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XBIOS_oldnumcol= 1<< (1 << (XBIOS_oldvmode & NUMCOLS));
if (XBIOS_oldnumcol > 256) {
XBIOS_oldnumcol = 0;
}
if (XBIOS_oldnumcol) {
VgetRGB(0, XBIOS_oldnumcol, XBIOS_oldpalette);
}
vformat->BitsPerPixel = 16;
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/* ScreenBlaster 3 ? */
if (Getcookie(C_SCPN, &cookie_scpn) == C_FOUND) {
SDL_XBIOS_ListSB3Modes(this, 0, (scpn_cookie_t *)cookie_scpn);
} else
/* Centscreen ? */
if (Getcookie(C_CNTS, &cookie_cnts) == C_FOUND) {
XBIOS_oldvmode = SDL_XBIOS_ListCentscreenModes(this, 0);
XBIOS_centscreen = SDL_TRUE;
} else
/* Standard, with or without Blowup */
{
switch (VgetMonitor())
{
case MONITOR_RGB:
case MONITOR_TV:
XBIOS_ListFalconRgbModes(this, 0);
break;
case MONITOR_VGA:
XBIOS_ListFalconVgaModes(this, 0);
break;
}
if (Getcookie(C_BLOW, &cookie_blow) == C_FOUND) {
SDL_XBIOS_ListBlowupModes(this, 0, (blow_cookie_t *)cookie_blow);
}
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case VDO_MILAN:
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(*XBIOS_saveMode)(this, vformat);
(*XBIOS_listModes)(this, 0);
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break;
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for ( i=0; i<NUM_MODELISTS; ++i ) {
int j;
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SDL_xbiosmode[i] = (xbiosmode_t **)
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SDL_malloc((SDL_nummodes[i]+1)*sizeof(xbiosmode_t *));
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if ( SDL_xbiosmode[i] == NULL ) {
SDL_OutOfMemory();
return(-1);
}
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for ( j=0; j<SDL_nummodes[i]; ++j ) {
SDL_xbiosmode[i][j]=(xbiosmode_t *)SDL_malloc(sizeof(xbiosmode_t));
if ( SDL_xbiosmode[i][j] == NULL ) {
SDL_OutOfMemory();
return(-1);
}
SDL_memset(SDL_xbiosmode[i][j], 0, sizeof(xbiosmode_t));
}
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SDL_xbiosmode[i][j] = NULL;
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SDL_modelist[i] = (SDL_Rect **)
SDL_malloc((SDL_nummodes[i]+1)*sizeof(SDL_Rect *));
if ( SDL_modelist[i] == NULL ) {
SDL_OutOfMemory();
return(-1);
}
for ( j=0; j<SDL_nummodes[i]; ++j ) {
SDL_modelist[i][j]=(SDL_Rect *)SDL_malloc(sizeof(SDL_Rect));
if ( SDL_modelist[i][j] == NULL ) {
SDL_OutOfMemory();
return(-1);
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SDL_memset(SDL_modelist[i][j], 0, sizeof(SDL_Rect));
}
SDL_modelist[i][j] = NULL;
}
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/* Now fill the mode list */
switch (XBIOS_cvdo >>16) {
case VDO_ST:
case VDO_STE:
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(*XBIOS_listModes)(this, 1);
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case VDO_TT:
XBIOS_ListTTModes(this, 1);
break;
case VDO_F30:
/* ScreenBlaster 3 ? */
if (Getcookie(C_SCPN, &cookie_scpn) == C_FOUND) {
SDL_XBIOS_ListSB3Modes(this, 1, (scpn_cookie_t *)cookie_scpn);
} else
/* Centscreen ? */
if (Getcookie(C_CNTS, &cookie_cnts) == C_FOUND) {
XBIOS_oldvmode = SDL_XBIOS_ListCentscreenModes(this, 1);
XBIOS_centscreen = SDL_TRUE;
} else
/* Standard, with or without Blowup */
{
switch (VgetMonitor())
{
case MONITOR_RGB:
case MONITOR_TV:
XBIOS_ListFalconRgbModes(this, 1);
break;
case MONITOR_VGA:
XBIOS_ListFalconVgaModes(this, 1);
break;
}
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if (Getcookie(C_BLOW, &cookie_blow) == C_FOUND) {
SDL_XBIOS_ListBlowupModes(this, 1, (blow_cookie_t *)cookie_blow);
}
}
break;
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case VDO_MILAN:
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(*XBIOS_listModes)(this, 1);
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break;
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XBIOS_screens[0]=NULL;
XBIOS_screens[1]=NULL;
XBIOS_shadowscreen=NULL;
/* Update hardware info */
this->info.hw_available = 1;
this->info.video_mem = (Uint32) Atari_SysMalloc(-1L, MX_STRAM);
/* Init chunky to planar routine */
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SDL_Atari_C2pConvert = SDL_Atari_C2pConvert8;
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#if SDL_VIDEO_OPENGL
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SDL_AtariGL_InitPointers(this);
#endif
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/* Disable screensavers */
if (SDL_XBIOS_TveillePresent(this)) {
SDL_XBIOS_TveilleDisable(this);
}
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/* We're done! */
return(0);
}
static SDL_Rect **XBIOS_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags)
{
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return(SDL_modelist[((format->BitsPerPixel+7)/8)-1]);
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}
static void XBIOS_FreeBuffers(_THIS)
{
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(*XBIOS_freeVbuffers)(this);
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if (XBIOS_shadowscreen!=NULL) {
Mfree(XBIOS_shadowscreen);
XBIOS_shadowscreen=NULL;
}
}
static SDL_Surface *XBIOS_SetVideoMode(_THIS, SDL_Surface *current,
int width, int height, int bpp, Uint32 flags)
{
int mode, new_depth;
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int num_buffers;
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xbiosmode_t *new_video_mode;
Uint32 new_screen_size;
Uint32 modeflags;
/* Free current buffers */
XBIOS_FreeBuffers(this);
608
609
/* Try to set the requested linear video mode */
bpp = (bpp+7)/8-1;
610
611
612
613
614
615
616
617
618
619
for ( mode=0; SDL_modelist[bpp][mode]; ++mode ) {
if ( (SDL_modelist[bpp][mode]->w == width) &&
(SDL_modelist[bpp][mode]->h == height) ) {
break;
}
}
if ( SDL_modelist[bpp][mode] == NULL ) {
SDL_SetError("Couldn't find requested mode in list");
return(NULL);
}
620
new_video_mode = SDL_xbiosmode[bpp][mode];
622
modeflags = SDL_FULLSCREEN | SDL_PREALLOC;
623
624
625
626
/* Allocate needed buffers: simple/double buffer and shadow surface */
new_depth = new_video_mode->depth;
if (new_depth == 4) {
627
SDL_Atari_C2pConvert = SDL_Atari_C2pConvert4;
628
new_depth=8;
629
modeflags |= SDL_SWSURFACE|SDL_HWPALETTE;
630
} else if (new_depth == 8) {
631
SDL_Atari_C2pConvert = SDL_Atari_C2pConvert8;
632
modeflags |= SDL_SWSURFACE|SDL_HWPALETTE;
633
634
635
636
637
638
639
} else {
modeflags |= SDL_HWSURFACE;
}
new_screen_size = width * height * ((new_depth)>>3);
new_screen_size += 256; /* To align on a 256 byte adress */
640
if (new_video_mode->flags & XBIOSMODE_C2P) {
641
642
643
XBIOS_shadowscreen = Atari_SysMalloc(new_screen_size, MX_PREFTTRAM);
if (XBIOS_shadowscreen == NULL) {
644
SDL_SetError("Can not allocate %d KB for shadow buffer", new_screen_size>>10);
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646
return (NULL);
}
647
SDL_memset(XBIOS_shadowscreen, 0, new_screen_size);
648
649
650
}
/* Output buffer needs to be twice in size for the software double-line mode */
651
if (new_video_mode->flags & XBIOSMODE_DOUBLELINE) {
652
653
654
new_screen_size <<= 1;
}
655
656
/* Double buffer ? */
num_buffers = 1;
658
#if SDL_VIDEO_OPENGL
659
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664
if (flags & SDL_OPENGL) {
if (this->gl_config.double_buffer) {
flags |= SDL_DOUBLEBUF;
}
}
#endif
665
if ((flags & SDL_DOUBLEBUF) && ((XBIOS_cvdo>>16) != VDO_MILAN)) {
666
667
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669
670
num_buffers = 2;
modeflags |= SDL_DOUBLEBUF;
}
/* Allocate buffers */
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if (!(*XBIOS_allocVbuffers)(this, num_buffers, new_screen_size)) {
XBIOS_FreeBuffers(this);
return (NULL);
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680
681
682
/* Allocate the new pixel format for the screen */
if ( ! SDL_ReallocFormat(current, new_depth, 0, 0, 0, 0) ) {
XBIOS_FreeBuffers(this);
SDL_SetError("Couldn't allocate new pixel format for requested mode");
return(NULL);
}
683
684
685
XBIOS_current = new_video_mode;
current->w = width;
current->h = height;
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687
688
689
690
current->pitch = (width * new_depth)>>3;
/* this is for C2P conversion */
XBIOS_pitch = (new_video_mode->width * new_video_mode->depth)>>3;
691
if (new_video_mode->flags & XBIOSMODE_C2P)
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current->pixels = XBIOS_shadowscreen;
else
current->pixels = XBIOS_screens[0];
XBIOS_fbnum = 0;
698
#if SDL_VIDEO_OPENGL
699
if (flags & SDL_OPENGL) {
700
if (!SDL_AtariGL_Init(this, current)) {
701
XBIOS_FreeBuffers(this);
702
703
SDL_SetError("Can not create OpenGL context");
return NULL;
704
705
706
707
708
709
710
711
}
modeflags |= SDL_OPENGL;
}
#endif
current->flags = modeflags;
712
#ifndef DEBUG_VIDEO_XBIOS
713
/* Now set the video mode */
714
if ((XBIOS_cvdo>>16) != VDO_MILAN) {
715
716
Setscreen(-1,XBIOS_screens[0],-1);
}
717
718
719
720
switch(XBIOS_cvdo >> 16) {
case VDO_ST:
case VDO_STE:
721
(*XBIOS_setMode)(this, new_video_mode);
722
723
724
725
726
break;
case VDO_TT:
EsetShift(new_video_mode->number);
break;
case VDO_F30:
727
728
729
if (XBIOS_centscreen) {
SDL_XBIOS_CentscreenSetmode(this, width, height, new_depth);
} else {
730
VsetMode(new_video_mode->number);
733
/* Set hardware palette to black in True Colour */
734
735
736
737
738
739
if (new_depth > 8) {
SDL_memset(F30_palette, 0, sizeof(F30_palette));
VsetRGB(0,256,F30_palette);
}
break;
case VDO_MILAN:
740
(*XBIOS_setMode)(this, new_video_mode);
741
742
743
744
break;
}
Vsync();
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
this->UpdateRects = XBIOS_UpdateRects;
return (current);
}
/* We don't actually allow hardware surfaces other than the main one */
static int XBIOS_AllocHWSurface(_THIS, SDL_Surface *surface)
{
return(-1);
}
static void XBIOS_FreeHWSurface(_THIS, SDL_Surface *surface)
{
return;
}
static int XBIOS_LockHWSurface(_THIS, SDL_Surface *surface)
{
return(0);
}
static void XBIOS_UnlockHWSurface(_THIS, SDL_Surface *surface)
{
return;
}
static void XBIOS_UpdateRects(_THIS, int numrects, SDL_Rect *rects)
{
SDL_Surface *surface;
777
778
surface = this->screen;
779
if (XBIOS_current->flags & XBIOSMODE_C2P) {
780
int i;
781
int doubleline = (XBIOS_current->flags & XBIOSMODE_DOUBLELINE ? 1 : 0);
782
783
784
785
786
787
for (i=0;i<numrects;i++) {
void *source,*destination;
int x1,x2;
x1 = rects[i].x & ~15;
788
789
790
791
x2 = rects[i].x+rects[i].w;
if (x2 & 15) {
x2 = (x2 | 15) +1;
}
792
793
794
795
796
source = surface->pixels;
source += surface->pitch * rects[i].y;
source += x1;
797
destination = XBIOS_screens[XBIOS_fbnum];
798
799
800
801
destination += XBIOS_pitch * rects[i].y;
destination += x1;
/* Convert chunky to planar screen */
802
SDL_Atari_C2pConvert(
803
804
805
806
source,
destination,
x2-x1,
rects[i].h,
808
809
surface->pitch,
XBIOS_pitch
810
811
812
813
);
}
}
814
#ifndef DEBUG_VIDEO_XBIOS
815
(*XBIOS_swapVbuffers)(this);
817
Vsync();
819
820
821
if ((surface->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF) {
XBIOS_fbnum ^= 1;
822
if ((XBIOS_current->flags & XBIOSMODE_C2P) == 0) {
823
824
825
surface->pixels=XBIOS_screens[XBIOS_fbnum];
}
}
826
827
828
829
}
static int XBIOS_FlipHWSurface(_THIS, SDL_Surface *surface)
{
830
if (XBIOS_current->flags & XBIOSMODE_C2P) {
831
832
void *destscr;
int destx;
833
int doubleline = (XBIOS_current->flags & XBIOSMODE_DOUBLELINE ? 1 : 0);
834
835
836
/* Center on destination screen */
destscr = XBIOS_screens[XBIOS_fbnum];
837
838
destscr += XBIOS_pitch * ((XBIOS_current->height - surface->h) >> 1);
destx = (XBIOS_current->width - surface->w) >> 1;
839
840
841
destx &= ~15;
destscr += destx;
842
/* Convert chunky to planar screen */
843
SDL_Atari_C2pConvert(
844
845
846
847
surface->pixels,
destscr,
surface->w,
surface->h,
849
850
surface->pitch,
XBIOS_pitch
851
852
853
);
}
854
#ifndef DEBUG_VIDEO_XBIOS
855
(*XBIOS_swapVbuffers)(this);
859
860
if ((surface->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF) {
861
XBIOS_fbnum ^= 1;
862
if ((XBIOS_current->flags & XBIOSMODE_C2P) == 0) {
863
864
surface->pixels=XBIOS_screens[XBIOS_fbnum];
}
865
866
867
868
869
870
871
}
return(0);
}
static int XBIOS_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors)
{
872
#ifndef DEBUG_VIDEO_XBIOS
873
874
875
876
877
878
879
880
881
882
883
int i;
int r,v,b;
switch( XBIOS_cvdo >> 16) {
case VDO_TT:
for(i = 0; i < ncolors; i++)
{
r = colors[i].r;
v = colors[i].g;
b = colors[i].b;
884
TT_palette[i]=((r>>4)<<8)|((v>>4)<<4)|(b>>4);
885
886
887
888
889
890
891
892
893
894
}
EsetPalette(firstcolor,ncolors,TT_palette);
break;
case VDO_F30:
for(i = 0; i < ncolors; i++)
{
r = colors[i].r;
v = colors[i].g;
b = colors[i].b;
895
F30_palette[i]=(r<<16)|(v<<8)|b;
896
897
898
899
}
VsetRGB(firstcolor,ncolors,F30_palette);
break;
}
901
902
903
904
905
906
907
908
909
910
911
912
913
914
return(1);
}
/* Note: If we are terminated, this could be called in the middle of
another SDL video routine -- notably UpdateRects.
*/
static void XBIOS_VideoQuit(_THIS)
{
int i,j;
Atari_ShutdownEvents();
/* Restore video mode and palette */
915
#ifndef DEBUG_VIDEO_XBIOS
916
917
918
switch(XBIOS_cvdo >> 16) {
case VDO_ST:
case VDO_STE:
919
(*XBIOS_restoreMode)(this);
920
921
922
923
924
925
926
927
928
929
break;
case VDO_TT:
Setscreen(-1,XBIOS_oldvbase,-1);
EsetShift(XBIOS_oldvmode);
if (XBIOS_oldnumcol) {
EsetPalette(0, XBIOS_oldnumcol, XBIOS_oldpalette);
}
break;
case VDO_F30:
Setscreen(-1, XBIOS_oldvbase, -1);
930
931
932
if (XBIOS_centscreen) {
SDL_XBIOS_CentscreenRestore(this, XBIOS_oldvmode);
} else {
933
VsetMode(XBIOS_oldvmode);
935
if (XBIOS_oldnumcol) {
936
937
938
939
VsetRGB(0, XBIOS_oldnumcol, XBIOS_oldpalette);
}
break;
case VDO_MILAN:
940
(*XBIOS_restoreMode)(this);
941
942
943
break;
}
Vsync();
946
#if SDL_VIDEO_OPENGL
947
948
949
950
951
if (gl_active) {
SDL_AtariGL_Quit(this, SDL_TRUE);
}
#endif
952
if (XBIOS_oldpalette) {
953
SDL_free(XBIOS_oldpalette);
954
955
956
957
958
XBIOS_oldpalette=NULL;
}
XBIOS_FreeBuffers(this);
/* Free mode list */
959
960
961
962
963
964
965
966
967
968
969
970
for ( i=0; i<NUM_MODELISTS; ++i ) {
if ( SDL_modelist[i] != NULL ) {
for ( j=0; SDL_modelist[i][j]; ++j )
SDL_free(SDL_modelist[i][j]);
SDL_free(SDL_modelist[i]);
SDL_modelist[i] = NULL;
}
if ( SDL_xbiosmode[i] != NULL ) {
for ( j=0; SDL_xbiosmode[i][j]; ++j )
SDL_free(SDL_xbiosmode[i][j]);
SDL_free(SDL_xbiosmode[i]);
SDL_xbiosmode[i] = NULL;
974
this->screen->pixels = NULL;
975
976
977
/* Restore screensavers */
if (SDL_XBIOS_TveillePresent(this)) {
978
SDL_XBIOS_TveilleEnable(this);
982
#if SDL_VIDEO_OPENGL
983
984
985
static void XBIOS_GL_SwapBuffers(_THIS)
{
986
987
988
SDL_AtariGL_SwapBuffers(this);
XBIOS_FlipHWSurface(this, this->screen);
SDL_AtariGL_MakeCurrent(this);