int FULLSCREEN_ToggleFromWimp(_THIS)
{
int width = this->screen->w;
int height = this->screen->h;
int bpp = this->screen->format->BitsPerPixel;
RISCOS_StoreWimpMode();
if (FULLSCREEN_SetMode(width, height, bpp))
{
char *buffer = this->hidden->alloc_bank;
if (riscos_backbuffer == 0) riscos_backbuffer = 1;
FULLSCREEN_SetupBanks(this);
this->hidden->bank[0] = buffer + 60;
if (bpp == 8) this->hidden->bank[0] += 2048;
this->hidden->current_bank = 0;
this->screen->pixels = this->hidden->bank[0];
SDL_memcpy(this->hidden->bank[1], this->hidden->bank[0], width * height * this->screen->format->BytesPerPixel);
FULLSCREEN_SetDeviceMode(this);
return 1;
} else
RISCOS_RestoreWimpMode();
return 0;
}
int FULLSCREEN_ToggleFromWimp(_THIS)
{
int width = this->screen->w;
int height = this->screen->h;
int bpp = this->screen->format->BitsPerPixel;
RISCOS_StoreWimpMode();
if (FULLSCREEN_SetMode(width, height, bpp))
{
char *buffer = this->hidden->alloc_bank; /* This is start of sprite data */
/* Support back buffer mode only */
riscos_backbuffer = 1;
FULLSCREEN_SetupBanks(this);
this->hidden->bank[0] = buffer + 60; /* Start of sprite data */
if (bpp == 8) this->hidden->bank[0] += 2048; /* 8bpp sprite have palette first */
this->hidden->current_bank = 0;
this->screen->pixels = this->hidden->bank[0];
/* Copy back buffer to screen memory */
memcpy(this->hidden->bank[1], this->hidden->bank[0], width * height * this->screen->format->BytesPerPixel);
FULLSCREEN_SetDeviceMode(this);
return 1;
} else
RISCOS_RestoreWimpMode();
return 0;
}
/* Set up video mode */
SDL_Surface *RISCOS_SetVideoMode(_THIS, SDL_Surface *current,
int width, int height, int bpp, Uint32 flags)
{
if (flags & SDL_FULLSCREEN)
{
RISCOS_StoreWimpMode();
/* Dump wimp window on switch to full screen */
if (this->hidden->window_handle) WIMP_DeleteWindow(this);
return FULLSCREEN_SetVideoMode(this, current, width, height, bpp, flags);
} else
{
RISCOS_RestoreWimpMode();
return WIMP_SetVideoMode(this, current, width, height, bpp, flags);
}
}
/* Toggle to window from full screen */
int WIMP_ToggleFromFullScreen(_THIS)
{
int width = this->screen->w;
int height = this->screen->h;
int bpp = this->screen->format->BitsPerPixel;
char *buffer = NULL;
char *old_bank[2];
char *old_alloc_bank;
/* Ensure flags are OK */
this->screen->flags &= ~(SDL_DOUBLEBUF|SDL_HWSURFACE);
if (this->hidden->bank[0] == this->hidden->alloc_bank || riscos_backbuffer == 0)
{
/* Need to create a sprite for the screen and copy the data to it */
char *data;
buffer = WIMP_CreateBuffer(width, height, bpp);
data = buffer + 60; /* Start of sprite data */
if (bpp == 8) data += 2048; /* 8bpp sprite have palette first */
if (buffer == NULL) return 0;
SDL_memcpy(data, this->hidden->bank[0], width * height * this->screen->format->BytesPerPixel);
}
/* else We've switch to full screen before so we already have a sprite */
old_bank[0] = this->hidden->bank[0];
old_bank[1] = this->hidden->bank[1];
old_alloc_bank = this->hidden->alloc_bank;
if (buffer != NULL) this->hidden->alloc_bank = buffer;
this->hidden->bank[1] = this->hidden->alloc_bank;
this->hidden->bank[0] = this->hidden->bank[1] + 60; /* Start of sprite data */
if (bpp == 8) this->hidden->bank[0] += 2048; /* 8bpp sprite have palette first */
this->hidden->current_bank = 0;
this->screen->pixels = this->hidden->bank[0];
RISCOS_RestoreWimpMode();
WIMP_ReadModeInfo(this);
if (WIMP_SetupWindow(this, this->screen))
{
WIMP_SetDeviceMode(this);
WIMP_SetupPlotInfo(this);
if (riscos_backbuffer == 0) riscos_backbuffer = 1;
if (buffer && old_alloc_bank) SDL_free(old_alloc_bank);
return 1;
} else
{
/* Drop back to full screen mode on failure */
this->hidden->bank[0] = old_bank[0];
this->hidden->bank[1] = old_bank[1];
this->hidden->alloc_bank = old_alloc_bank;
if (buffer) SDL_free(buffer);
RISCOS_StoreWimpMode();
FULLSCREEN_SetMode(width, height, bpp);
}
return 0;
}
