Mercurial > sdl-ios-xcode
diff src/video/dga/SDL_dgavideo.c @ 1662:782fd950bd46 SDL-1.3
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
WARNING: None of the video drivers have been updated for the new API yet! The API is still under design and very fluid.
The code is now run through a consistent indent format:
indent -i4 -nut -nsc -br -ce
The headers are being converted to automatically generate doxygen documentation.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Sun, 28 May 2006 13:04:16 +0000 |
parents | 14717b52abc0 |
children | 4da1ee79c9af |
line wrap: on
line diff
--- a/src/video/dga/SDL_dgavideo.c Sun May 21 17:27:13 2006 +0000 +++ b/src/video/dga/SDL_dgavideo.c Sun May 28 13:04:16 2006 +0000 @@ -44,1057 +44,1108 @@ /*#define DGA_DEBUG*/ /* Heheh we're using X11 event code */ -extern void X11_SaveScreenSaver(Display *display, int *saved_timeout, BOOL *dpms); -extern void X11_DisableScreenSaver(Display *display); -extern void X11_RestoreScreenSaver(Display *display, int saved_timeout, BOOL dpms); +extern void X11_SaveScreenSaver (Display * display, int *saved_timeout, + BOOL * dpms); +extern void X11_DisableScreenSaver (Display * display); +extern void X11_RestoreScreenSaver (Display * display, int saved_timeout, + BOOL dpms); /* Initialization/Query functions */ -static int DGA_VideoInit(_THIS, SDL_PixelFormat *vformat); -static SDL_Rect **DGA_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags); -static SDL_Surface *DGA_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); -static int DGA_SetColors(_THIS, int firstcolor, int ncolors, - SDL_Color *colors); -static int DGA_SetGammaRamp(_THIS, Uint16 *ramp); -static void DGA_VideoQuit(_THIS); +static int DGA_VideoInit (_THIS, SDL_PixelFormat * vformat); +static SDL_Rect **DGA_ListModes (_THIS, SDL_PixelFormat * format, + Uint32 flags); +static SDL_Surface *DGA_SetVideoMode (_THIS, SDL_Surface * current, int width, + int height, int bpp, Uint32 flags); +static int DGA_SetColors (_THIS, int firstcolor, int ncolors, + SDL_Color * colors); +static int DGA_SetGammaRamp (_THIS, Uint16 * ramp); +static void DGA_VideoQuit (_THIS); /* Hardware surface functions */ -static int DGA_InitHWSurfaces(_THIS, SDL_Surface *screen, Uint8 *base, int size); -static void DGA_FreeHWSurfaces(_THIS); -static int DGA_AllocHWSurface(_THIS, SDL_Surface *surface); -static int DGA_FillHWRect(_THIS, SDL_Surface *dst, SDL_Rect *rect, Uint32 color); -static int DGA_CheckHWBlit(_THIS, SDL_Surface *src, SDL_Surface *dst); -static int DGA_LockHWSurface(_THIS, SDL_Surface *surface); -static void DGA_UnlockHWSurface(_THIS, SDL_Surface *surface); -static void DGA_FreeHWSurface(_THIS, SDL_Surface *surface); -static int DGA_FlipHWSurface(_THIS, SDL_Surface *surface); +static int DGA_InitHWSurfaces (_THIS, SDL_Surface * screen, Uint8 * base, + int size); +static void DGA_FreeHWSurfaces (_THIS); +static int DGA_AllocHWSurface (_THIS, SDL_Surface * surface); +static int DGA_FillHWRect (_THIS, SDL_Surface * dst, SDL_Rect * rect, + Uint32 color); +static int DGA_CheckHWBlit (_THIS, SDL_Surface * src, SDL_Surface * dst); +static int DGA_LockHWSurface (_THIS, SDL_Surface * surface); +static void DGA_UnlockHWSurface (_THIS, SDL_Surface * surface); +static void DGA_FreeHWSurface (_THIS, SDL_Surface * surface); +static int DGA_FlipHWSurface (_THIS, SDL_Surface * surface); /* DGA driver bootstrap functions */ -static int DGA_Available(void) +static int +DGA_Available (void) { - const char *display = NULL; - Display *dpy = NULL; - int available = 0; + const char *display = NULL; + Display *dpy = NULL; + int available = 0; - /* The driver is available is available if the display is local - and the DGA 2.0+ extension is available, and we can map mem. - */ - if ( SDL_X11_LoadSymbols() ) { - if ( (SDL_strncmp(XDisplayName(display), ":", 1) == 0) || - (SDL_strncmp(XDisplayName(display), "unix:", 5) == 0) ) { - dpy = XOpenDisplay(display); - if ( dpy ) { - int events, errors, major, minor; + /* The driver is available is available if the display is local + and the DGA 2.0+ extension is available, and we can map mem. + */ + if (SDL_X11_LoadSymbols ()) { + if ((SDL_strncmp (XDisplayName (display), ":", 1) == 0) || + (SDL_strncmp (XDisplayName (display), "unix:", 5) == 0)) { + dpy = XOpenDisplay (display); + if (dpy) { + int events, errors, major, minor; - if ( SDL_NAME(XDGAQueryExtension)(dpy, &events, &errors) && - SDL_NAME(XDGAQueryVersion)(dpy, &major, &minor) ) { - int screen; + if (SDL_NAME (XDGAQueryExtension) + (dpy, &events, &errors) + && SDL_NAME (XDGAQueryVersion) (dpy, &major, &minor)) { + int screen; - screen = DefaultScreen(dpy); - if ( (major >= 2) && - SDL_NAME(XDGAOpenFramebuffer)(dpy, screen) ) { - available = 1; - SDL_NAME(XDGACloseFramebuffer)(dpy, screen); - } - } - XCloseDisplay(dpy); - } - } - SDL_X11_UnloadSymbols(); - } - return(available); + screen = DefaultScreen (dpy); + if ((major >= 2) && + SDL_NAME (XDGAOpenFramebuffer) (dpy, screen)) { + available = 1; + SDL_NAME (XDGACloseFramebuffer) (dpy, screen); + } + } + XCloseDisplay (dpy); + } + } + SDL_X11_UnloadSymbols (); + } + return (available); } -static void DGA_DeleteDevice(SDL_VideoDevice *device) +static void +DGA_DeleteDevice (SDL_VideoDevice * device) { - if (device != NULL) { - SDL_free(device->hidden); - SDL_free(device); - SDL_X11_UnloadSymbols(); - } + if (device != NULL) { + SDL_free (device->hidden); + SDL_free (device); + SDL_X11_UnloadSymbols (); + } } -static SDL_VideoDevice *DGA_CreateDevice(int devindex) +static SDL_VideoDevice * +DGA_CreateDevice (int devindex) { - SDL_VideoDevice *device = NULL; + SDL_VideoDevice *device = NULL; - /* Initialize all variables that we clean on shutdown */ - if (SDL_X11_LoadSymbols()) { - device = (SDL_VideoDevice *)SDL_malloc(sizeof(SDL_VideoDevice)); - if ( device ) { - SDL_memset(device, 0, (sizeof *device)); - device->hidden = (struct SDL_PrivateVideoData *) - SDL_malloc((sizeof *device->hidden)); - } - if ( (device == NULL) || (device->hidden == NULL) ) { - SDL_OutOfMemory(); - if ( device ) { - SDL_free(device); - } - SDL_X11_UnloadSymbols(); - return(0); - } - SDL_memset(device->hidden, 0, (sizeof *device->hidden)); + /* Initialize all variables that we clean on shutdown */ + if (SDL_X11_LoadSymbols ()) { + device = (SDL_VideoDevice *) SDL_malloc (sizeof (SDL_VideoDevice)); + if (device) { + SDL_memset (device, 0, (sizeof *device)); + device->hidden = (struct SDL_PrivateVideoData *) + SDL_malloc ((sizeof *device->hidden)); + } + if ((device == NULL) || (device->hidden == NULL)) { + SDL_OutOfMemory (); + if (device) { + SDL_free (device); + } + SDL_X11_UnloadSymbols (); + return (0); + } + SDL_memset (device->hidden, 0, (sizeof *device->hidden)); - /* Set the function pointers */ - device->VideoInit = DGA_VideoInit; - device->ListModes = DGA_ListModes; - device->SetVideoMode = DGA_SetVideoMode; - device->SetColors = DGA_SetColors; - device->UpdateRects = NULL; - device->VideoQuit = DGA_VideoQuit; - device->AllocHWSurface = DGA_AllocHWSurface; - device->CheckHWBlit = DGA_CheckHWBlit; - device->FillHWRect = DGA_FillHWRect; - device->SetHWColorKey = NULL; - device->SetHWAlpha = NULL; - device->LockHWSurface = DGA_LockHWSurface; - device->UnlockHWSurface = DGA_UnlockHWSurface; - device->FlipHWSurface = DGA_FlipHWSurface; - device->FreeHWSurface = DGA_FreeHWSurface; - device->SetGammaRamp = DGA_SetGammaRamp; - device->GetGammaRamp = NULL; - device->SetCaption = NULL; - device->SetIcon = NULL; - device->IconifyWindow = NULL; - device->GrabInput = NULL; - device->GetWMInfo = NULL; - device->InitOSKeymap = DGA_InitOSKeymap; - device->PumpEvents = DGA_PumpEvents; + /* Set the function pointers */ + device->VideoInit = DGA_VideoInit; + device->ListModes = DGA_ListModes; + device->SetVideoMode = DGA_SetVideoMode; + device->SetColors = DGA_SetColors; + device->UpdateRects = NULL; + device->VideoQuit = DGA_VideoQuit; + device->AllocHWSurface = DGA_AllocHWSurface; + device->CheckHWBlit = DGA_CheckHWBlit; + device->FillHWRect = DGA_FillHWRect; + device->SetHWColorKey = NULL; + device->SetHWAlpha = NULL; + device->LockHWSurface = DGA_LockHWSurface; + device->UnlockHWSurface = DGA_UnlockHWSurface; + device->FlipHWSurface = DGA_FlipHWSurface; + device->FreeHWSurface = DGA_FreeHWSurface; + device->SetGammaRamp = DGA_SetGammaRamp; + device->GetGammaRamp = NULL; + device->SetCaption = NULL; + device->SetIcon = NULL; + device->IconifyWindow = NULL; + device->GrabInput = NULL; + device->GetWMInfo = NULL; + device->InitOSKeymap = DGA_InitOSKeymap; + device->PumpEvents = DGA_PumpEvents; - device->free = DGA_DeleteDevice; - } + device->free = DGA_DeleteDevice; + } - return device; + return device; } VideoBootStrap DGA_bootstrap = { - "dga", "XFree86 DGA 2.0", - DGA_Available, DGA_CreateDevice + "dga", "XFree86 DGA 2.0", + DGA_Available, DGA_CreateDevice }; -static int DGA_AddMode(_THIS, int bpp, int w, int h) +static int +DGA_AddMode (_THIS, int bpp, int w, int h) { - SDL_Rect *mode; - int index; - int next_mode; + SDL_Rect *mode; + int index; + int next_mode; - /* Check to see if we already have this mode */ - if ( bpp < 8 ) { /* Not supported */ - return(0); - } - index = ((bpp+7)/8)-1; - if ( SDL_nummodes[index] > 0 ) { - mode = SDL_modelist[index][SDL_nummodes[index]-1]; - if ( (mode->w == w) && (mode->h == h) ) { - return(0); - } - } + /* Check to see if we already have this mode */ + if (bpp < 8) { /* Not supported */ + return (0); + } + index = ((bpp + 7) / 8) - 1; + if (SDL_nummodes[index] > 0) { + mode = SDL_modelist[index][SDL_nummodes[index] - 1]; + if ((mode->w == w) && (mode->h == h)) { + return (0); + } + } - /* Set up the new video mode rectangle */ - mode = (SDL_Rect *)SDL_malloc(sizeof *mode); - if ( mode == NULL ) { - SDL_OutOfMemory(); - return(-1); - } - mode->x = 0; - mode->y = 0; - mode->w = w; - mode->h = h; + /* Set up the new video mode rectangle */ + mode = (SDL_Rect *) SDL_malloc (sizeof *mode); + if (mode == NULL) { + SDL_OutOfMemory (); + return (-1); + } + mode->x = 0; + mode->y = 0; + mode->w = w; + mode->h = h; - /* Allocate the new list of modes, and fill in the new mode */ - next_mode = SDL_nummodes[index]; - SDL_modelist[index] = (SDL_Rect **) - SDL_realloc(SDL_modelist[index], (1+next_mode+1)*sizeof(SDL_Rect *)); - if ( SDL_modelist[index] == NULL ) { - SDL_OutOfMemory(); - SDL_nummodes[index] = 0; - SDL_free(mode); - return(-1); - } - SDL_modelist[index][next_mode] = mode; - SDL_modelist[index][next_mode+1] = NULL; - SDL_nummodes[index]++; + /* Allocate the new list of modes, and fill in the new mode */ + next_mode = SDL_nummodes[index]; + SDL_modelist[index] = (SDL_Rect **) + SDL_realloc (SDL_modelist[index], + (1 + next_mode + 1) * sizeof (SDL_Rect *)); + if (SDL_modelist[index] == NULL) { + SDL_OutOfMemory (); + SDL_nummodes[index] = 0; + SDL_free (mode); + return (-1); + } + SDL_modelist[index][next_mode] = mode; + SDL_modelist[index][next_mode + 1] = NULL; + SDL_nummodes[index]++; - return(0); + return (0); } /* This whole function is a hack. :) */ -static Uint32 get_video_size(_THIS) +static Uint32 +get_video_size (_THIS) { - /* This is a non-exported function from libXxf86dga.a */ - extern unsigned char *SDL_NAME(XDGAGetMappedMemory)(int screen); - FILE *proc; - unsigned long mem; - unsigned start, stop; - char line[BUFSIZ]; - Uint32 size; + /* This is a non-exported function from libXxf86dga.a */ + extern unsigned char *SDL_NAME (XDGAGetMappedMemory) (int screen); + FILE *proc; + unsigned long mem; + unsigned start, stop; + char line[BUFSIZ]; + Uint32 size; - mem = (unsigned long)SDL_NAME(XDGAGetMappedMemory)(DGA_Screen); - size = 0; - proc = fopen("/proc/self/maps", "r"); - if ( proc ) { - while ( fgets(line, sizeof(line)-1, proc) ) { - SDL_sscanf(line, "%x-%x", &start, &stop); - if ( start == mem ) { - size = (Uint32)((stop-start)/1024); - break; - } - } - fclose(proc); - } - return(size); + mem = (unsigned long) SDL_NAME (XDGAGetMappedMemory) (DGA_Screen); + size = 0; + proc = fopen ("/proc/self/maps", "r"); + if (proc) { + while (fgets (line, sizeof (line) - 1, proc)) { + SDL_sscanf (line, "%x-%x", &start, &stop); + if (start == mem) { + size = (Uint32) ((stop - start) / 1024); + break; + } + } + fclose (proc); + } + return (size); } #ifdef DGA_DEBUG -static void PrintMode(SDL_NAME(XDGAMode) *mode) +static void +PrintMode (SDL_NAME (XDGAMode) * mode) { - printf("Mode: %s (%dx%d) at %d bpp (%f refresh, %d pitch) num: %d\n", - mode->name, - mode->viewportWidth, mode->viewportHeight, - mode->depth == 24 ? mode->bitsPerPixel : mode->depth, - mode->verticalRefresh, mode->bytesPerScanline, mode->num); - printf("\tRGB: 0x%8.8x 0x%8.8x 0x%8.8x (%d - %s)\n", - mode->redMask, mode->greenMask, mode->blueMask, - mode->visualClass, - mode->visualClass == TrueColor ? "truecolor" : - mode->visualClass == DirectColor ? "directcolor" : - mode->visualClass == PseudoColor ? "pseudocolor" : "unknown"); - printf("\tFlags: "); - if ( mode->flags & XDGAConcurrentAccess ) - printf(" XDGAConcurrentAccess"); - if ( mode->flags & XDGASolidFillRect ) - printf(" XDGASolidFillRect"); - if ( mode->flags & XDGABlitRect ) - printf(" XDGABlitRect"); - if ( mode->flags & XDGABlitTransRect ) - printf(" XDGABlitTransRect"); - if ( mode->flags & XDGAPixmap ) - printf(" XDGAPixmap"); - if ( mode->flags & XDGAInterlaced ) - printf(" XDGAInterlaced"); - if ( mode->flags & XDGADoublescan ) - printf(" XDGADoublescan"); - if ( mode->viewportFlags & XDGAFlipRetrace ) - printf(" XDGAFlipRetrace"); - if ( mode->viewportFlags & XDGAFlipImmediate ) - printf(" XDGAFlipImmediate"); - printf("\n"); + printf ("Mode: %s (%dx%d) at %d bpp (%f refresh, %d pitch) num: %d\n", + mode->name, + mode->viewportWidth, mode->viewportHeight, + mode->depth == 24 ? mode->bitsPerPixel : mode->depth, + mode->verticalRefresh, mode->bytesPerScanline, mode->num); + printf ("\tRGB: 0x%8.8x 0x%8.8x 0x%8.8x (%d - %s)\n", + mode->redMask, mode->greenMask, mode->blueMask, + mode->visualClass, + mode->visualClass == TrueColor ? "truecolor" : + mode->visualClass == DirectColor ? "directcolor" : + mode->visualClass == PseudoColor ? "pseudocolor" : "unknown"); + printf ("\tFlags: "); + if (mode->flags & XDGAConcurrentAccess) + printf (" XDGAConcurrentAccess"); + if (mode->flags & XDGASolidFillRect) + printf (" XDGASolidFillRect"); + if (mode->flags & XDGABlitRect) + printf (" XDGABlitRect"); + if (mode->flags & XDGABlitTransRect) + printf (" XDGABlitTransRect"); + if (mode->flags & XDGAPixmap) + printf (" XDGAPixmap"); + if (mode->flags & XDGAInterlaced) + printf (" XDGAInterlaced"); + if (mode->flags & XDGADoublescan) + printf (" XDGADoublescan"); + if (mode->viewportFlags & XDGAFlipRetrace) + printf (" XDGAFlipRetrace"); + if (mode->viewportFlags & XDGAFlipImmediate) + printf (" XDGAFlipImmediate"); + printf ("\n"); } #endif /* DGA_DEBUG */ -static int cmpmodes(const void *va, const void *vb) +static int +cmpmodes (const void *va, const void *vb) { - const SDL_NAME(XDGAMode) *a = (const SDL_NAME(XDGAMode) *)va; - const SDL_NAME(XDGAMode) *b = (const SDL_NAME(XDGAMode) *)vb; + const SDL_NAME (XDGAMode) * a = (const SDL_NAME (XDGAMode) *) va; + const SDL_NAME (XDGAMode) * b = (const SDL_NAME (XDGAMode) *) vb; - if ( (a->viewportWidth == b->viewportWidth) && - (b->viewportHeight == a->viewportHeight) ) { + if ((a->viewportWidth == b->viewportWidth) && + (b->viewportHeight == a->viewportHeight)) { /* Prefer 32 bpp over 24 bpp, 16 bpp over 15 bpp */ int a_bpp = a->depth == 24 ? a->bitsPerPixel : a->depth; int b_bpp = b->depth == 24 ? b->bitsPerPixel : b->depth; - if ( a_bpp != b_bpp ) { + if (a_bpp != b_bpp) { return b_bpp - a_bpp; } /* Prefer DirectColor visuals, for gamma support */ - if ( a->visualClass == DirectColor && b->visualClass != DirectColor ) + if (a->visualClass == DirectColor && b->visualClass != DirectColor) return -1; - if ( b->visualClass == DirectColor && a->visualClass != DirectColor ) + if (b->visualClass == DirectColor && a->visualClass != DirectColor) return 1; /* Maintain server refresh rate sorting */ return a->num - b->num; - } else if ( a->viewportWidth == b->viewportWidth ) { + } else if (a->viewportWidth == b->viewportWidth) { return b->viewportHeight - a->viewportHeight; } else { return b->viewportWidth - a->viewportWidth; } } -static void UpdateHWInfo(_THIS, SDL_NAME(XDGAMode) *mode) +static void +UpdateHWInfo (_THIS, SDL_NAME (XDGAMode) * mode) { - this->info.wm_available = 0; - this->info.hw_available = 1; - if ( mode->flags & XDGABlitRect ) { - this->info.blit_hw = 1; - } else { - this->info.blit_hw = 0; - } - if ( mode->flags & XDGABlitTransRect ) { - this->info.blit_hw_CC = 1; - } else { - this->info.blit_hw_CC = 0; - } - if ( mode->flags & XDGASolidFillRect ) { - this->info.blit_fill = 1; - } else { - this->info.blit_fill = 0; - } - this->info.video_mem = get_video_size(this); + this->info.wm_available = 0; + this->info.hw_available = 1; + if (mode->flags & XDGABlitRect) { + this->info.blit_hw = 1; + } else { + this->info.blit_hw = 0; + } + if (mode->flags & XDGABlitTransRect) { + this->info.blit_hw_CC = 1; + } else { + this->info.blit_hw_CC = 0; + } + if (mode->flags & XDGASolidFillRect) { + this->info.blit_fill = 1; + } else { + this->info.blit_fill = 0; + } + this->info.video_mem = get_video_size (this); } -static int DGA_VideoInit(_THIS, SDL_PixelFormat *vformat) +static int +DGA_VideoInit (_THIS, SDL_PixelFormat * vformat) { - const char *display; - int event_base, error_base; - int major_version, minor_version; - Visual *visual; - SDL_NAME(XDGAMode) *modes; - int i, num_modes; + const char *display; + int event_base, error_base; + int major_version, minor_version; + Visual *visual; + SDL_NAME (XDGAMode) * modes; + int i, num_modes; - /* Open the X11 display */ - display = NULL; /* Get it from DISPLAY environment variable */ + /* Open the X11 display */ + display = NULL; /* Get it from DISPLAY environment variable */ - DGA_Display = XOpenDisplay(display); - if ( DGA_Display == NULL ) { - SDL_SetError("Couldn't open X11 display"); - return(-1); - } + DGA_Display = XOpenDisplay (display); + if (DGA_Display == NULL) { + SDL_SetError ("Couldn't open X11 display"); + return (-1); + } - /* Check for the DGA extension */ - if ( ! SDL_NAME(XDGAQueryExtension)(DGA_Display, &event_base, &error_base) || - ! SDL_NAME(XDGAQueryVersion)(DGA_Display, &major_version, &minor_version) ) { - SDL_SetError("DGA extension not available"); - XCloseDisplay(DGA_Display); - return(-1); - } - if ( major_version < 2 ) { - SDL_SetError("DGA driver requires DGA 2.0 or newer"); - XCloseDisplay(DGA_Display); - return(-1); - } - DGA_event_base = event_base; + /* Check for the DGA extension */ + if (!SDL_NAME (XDGAQueryExtension) (DGA_Display, &event_base, &error_base) + || !SDL_NAME (XDGAQueryVersion) (DGA_Display, &major_version, + &minor_version)) { + SDL_SetError ("DGA extension not available"); + XCloseDisplay (DGA_Display); + return (-1); + } + if (major_version < 2) { + SDL_SetError ("DGA driver requires DGA 2.0 or newer"); + XCloseDisplay (DGA_Display); + return (-1); + } + DGA_event_base = event_base; - /* Determine the current screen size */ - this->info.current_w = DisplayWidth(DGA_Display, DGA_Screen); - this->info.current_h = DisplayHeight(DGA_Display, DGA_Screen); + /* Determine the current screen size */ + this->info.current_w = DisplayWidth (DGA_Display, DGA_Screen); + this->info.current_h = DisplayHeight (DGA_Display, DGA_Screen); - /* Determine the current screen depth */ - visual = DefaultVisual(DGA_Display, DGA_Screen); - { - XPixmapFormatValues *pix_format; - int i, num_formats; + /* Determine the current screen depth */ + visual = DefaultVisual (DGA_Display, DGA_Screen); + { + XPixmapFormatValues *pix_format; + int i, num_formats; - vformat->BitsPerPixel = DefaultDepth(DGA_Display, DGA_Screen); - pix_format = XListPixmapFormats(DGA_Display, &num_formats); - if ( pix_format == NULL ) { - SDL_SetError("Couldn't determine screen formats"); - XCloseDisplay(DGA_Display); - return(-1); - } - for ( i=0; i<num_formats; ++i ) { - if ( vformat->BitsPerPixel == pix_format[i].depth ) - break; - } - if ( i != num_formats ) - vformat->BitsPerPixel = pix_format[i].bits_per_pixel; - XFree((char *)pix_format); - } - if ( vformat->BitsPerPixel > 8 ) { - vformat->Rmask = visual->red_mask; - vformat->Gmask = visual->green_mask; - vformat->Bmask = visual->blue_mask; - } + vformat->BitsPerPixel = DefaultDepth (DGA_Display, DGA_Screen); + pix_format = XListPixmapFormats (DGA_Display, &num_formats); + if (pix_format == NULL) { + SDL_SetError ("Couldn't determine screen formats"); + XCloseDisplay (DGA_Display); + return (-1); + } + for (i = 0; i < num_formats; ++i) { + if (vformat->BitsPerPixel == pix_format[i].depth) + break; + } + if (i != num_formats) + vformat->BitsPerPixel = pix_format[i].bits_per_pixel; + XFree ((char *) pix_format); + } + if (vformat->BitsPerPixel > 8) { + vformat->Rmask = visual->red_mask; + vformat->Gmask = visual->green_mask; + vformat->Bmask = visual->blue_mask; + } - /* Open access to the framebuffer */ - if ( ! SDL_NAME(XDGAOpenFramebuffer)(DGA_Display, DGA_Screen) ) { - SDL_SetError("Unable to map the video memory"); - XCloseDisplay(DGA_Display); - return(-1); - } + /* Open access to the framebuffer */ + if (!SDL_NAME (XDGAOpenFramebuffer) (DGA_Display, DGA_Screen)) { + SDL_SetError ("Unable to map the video memory"); + XCloseDisplay (DGA_Display); + return (-1); + } - /* Save DPMS and screensaver settings */ - X11_SaveScreenSaver(DGA_Display, &screensaver_timeout, &dpms_enabled); - X11_DisableScreenSaver(DGA_Display); + /* Save DPMS and screensaver settings */ + X11_SaveScreenSaver (DGA_Display, &screensaver_timeout, &dpms_enabled); + X11_DisableScreenSaver (DGA_Display); - /* Query for the list of available video modes */ - modes = SDL_NAME(XDGAQueryModes)(DGA_Display, DGA_Screen, &num_modes); - SDL_qsort(modes, num_modes, sizeof *modes, cmpmodes); - for ( i=0; i<num_modes; ++i ) { - if ( ((modes[i].visualClass == PseudoColor) || - (modes[i].visualClass == DirectColor) || - (modes[i].visualClass == TrueColor)) && - !(modes[i].flags & (XDGAInterlaced|XDGADoublescan)) ) { + /* Query for the list of available video modes */ + modes = SDL_NAME (XDGAQueryModes) (DGA_Display, DGA_Screen, &num_modes); + SDL_qsort (modes, num_modes, sizeof *modes, cmpmodes); + for (i = 0; i < num_modes; ++i) { + if (((modes[i].visualClass == PseudoColor) || + (modes[i].visualClass == DirectColor) || + (modes[i].visualClass == TrueColor)) && + !(modes[i].flags & (XDGAInterlaced | XDGADoublescan))) { #ifdef DGA_DEBUG - PrintMode(&modes[i]); + PrintMode (&modes[i]); #endif - DGA_AddMode(this, modes[i].bitsPerPixel, - modes[i].viewportWidth, - modes[i].viewportHeight); - } - } - UpdateHWInfo(this, modes); - XFree(modes); + DGA_AddMode (this, modes[i].bitsPerPixel, + modes[i].viewportWidth, modes[i].viewportHeight); + } + } + UpdateHWInfo (this, modes); + XFree (modes); - /* Create the hardware surface lock mutex */ - hw_lock = SDL_CreateMutex(); - if ( hw_lock == NULL ) { - SDL_SetError("Unable to create lock mutex"); - DGA_VideoQuit(this); - return(-1); - } - + /* Create the hardware surface lock mutex */ + hw_lock = SDL_CreateMutex (); + if (hw_lock == NULL) { + SDL_SetError ("Unable to create lock mutex"); + DGA_VideoQuit (this); + return (-1); + } #ifdef LOCK_DGA_DISPLAY - /* Create the event lock so we're thread-safe.. :-/ */ - event_lock = SDL_CreateMutex(); + /* Create the event lock so we're thread-safe.. :-/ */ + event_lock = SDL_CreateMutex (); #endif /* LOCK_DGA_DISPLAY */ - /* We're done! */ - return(0); + /* We're done! */ + return (0); } -SDL_Rect **DGA_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags) +SDL_Rect ** +DGA_ListModes (_THIS, SDL_PixelFormat * format, Uint32 flags) { - return(SDL_modelist[((format->BitsPerPixel+7)/8)-1]); + return (SDL_modelist[((format->BitsPerPixel + 7) / 8) - 1]); } /* Various screen update functions available */ -static void DGA_DirectUpdate(_THIS, int numrects, SDL_Rect *rects); +static void DGA_DirectUpdate (_THIS, int numrects, SDL_Rect * rects); -SDL_Surface *DGA_SetVideoMode(_THIS, SDL_Surface *current, - int width, int height, int bpp, Uint32 flags) +SDL_Surface * +DGA_SetVideoMode (_THIS, SDL_Surface * current, + int width, int height, int bpp, Uint32 flags) { - SDL_NAME(XDGAMode) *modes; - int i, num_modes; - SDL_NAME(XDGADevice) *mode; - int screen_len; - Uint8 *surfaces_mem; - int surfaces_len; + SDL_NAME (XDGAMode) * modes; + int i, num_modes; + SDL_NAME (XDGADevice) * mode; + int screen_len; + Uint8 *surfaces_mem; + int surfaces_len; - /* Free any previous colormap */ - if ( DGA_colormap ) { - XFreeColormap(DGA_Display, DGA_colormap); - DGA_colormap = 0; - } + /* Free any previous colormap */ + if (DGA_colormap) { + XFreeColormap (DGA_Display, DGA_colormap); + DGA_colormap = 0; + } - /* Search for a matching video mode */ - modes = SDL_NAME(XDGAQueryModes)(DGA_Display, DGA_Screen, &num_modes); - SDL_qsort(modes, num_modes, sizeof *modes, cmpmodes); - for ( i=0; i<num_modes; ++i ) { - int depth; + /* Search for a matching video mode */ + modes = SDL_NAME (XDGAQueryModes) (DGA_Display, DGA_Screen, &num_modes); + SDL_qsort (modes, num_modes, sizeof *modes, cmpmodes); + for (i = 0; i < num_modes; ++i) { + int depth; - depth = modes[i].depth; - if ( depth == 24 ) { /* Distinguish between 24 and 32 bpp */ - depth = modes[i].bitsPerPixel; - } - if ( (depth == bpp) && - (modes[i].viewportWidth == width) && - (modes[i].viewportHeight == height) && - ((modes[i].visualClass == PseudoColor) || - (modes[i].visualClass == DirectColor) || - (modes[i].visualClass == TrueColor)) && - !(modes[i].flags & (XDGAInterlaced|XDGADoublescan)) ) { - break; - } - } - if ( i == num_modes ) { - SDL_SetError("No matching video mode found"); - return(NULL); - } + depth = modes[i].depth; + if (depth == 24) { /* Distinguish between 24 and 32 bpp */ + depth = modes[i].bitsPerPixel; + } + if ((depth == bpp) && + (modes[i].viewportWidth == width) && + (modes[i].viewportHeight == height) && + ((modes[i].visualClass == PseudoColor) || + (modes[i].visualClass == DirectColor) || + (modes[i].visualClass == TrueColor)) && + !(modes[i].flags & (XDGAInterlaced | XDGADoublescan))) { + break; + } + } + if (i == num_modes) { + SDL_SetError ("No matching video mode found"); + return (NULL); + } #ifdef DGA_DEBUG - PrintMode(&modes[i]); + PrintMode (&modes[i]); #endif - /* Set the video mode */ - mode = SDL_NAME(XDGASetMode)(DGA_Display, DGA_Screen, modes[i].num); - XFree(modes); - if ( mode == NULL ) { - SDL_SetError("Unable to switch to requested mode"); - return(NULL); - } - DGA_visualClass = mode->mode.visualClass; - memory_base = (Uint8 *)mode->data; - memory_pitch = mode->mode.bytesPerScanline; + /* Set the video mode */ + mode = SDL_NAME (XDGASetMode) (DGA_Display, DGA_Screen, modes[i].num); + XFree (modes); + if (mode == NULL) { + SDL_SetError ("Unable to switch to requested mode"); + return (NULL); + } + DGA_visualClass = mode->mode.visualClass; + memory_base = (Uint8 *) mode->data; + memory_pitch = mode->mode.bytesPerScanline; + + /* Set up the new mode framebuffer */ + current->flags = (SDL_FULLSCREEN | SDL_HWSURFACE); + current->w = mode->mode.viewportWidth; + current->h = mode->mode.viewportHeight; + current->pitch = memory_pitch; + current->pixels = memory_base; + if (!SDL_ReallocFormat (current, mode->mode.bitsPerPixel, + mode->mode.redMask, + mode->mode.greenMask, mode->mode.blueMask, 0)) { + return (NULL); + } + screen_len = current->h * current->pitch; - /* Set up the new mode framebuffer */ - current->flags = (SDL_FULLSCREEN|SDL_HWSURFACE); - current->w = mode->mode.viewportWidth; - current->h = mode->mode.viewportHeight; - current->pitch = memory_pitch; - current->pixels = memory_base; - if ( ! SDL_ReallocFormat(current, mode->mode.bitsPerPixel, - mode->mode.redMask, - mode->mode.greenMask, - mode->mode.blueMask, 0) ) { - return(NULL); - } - screen_len = current->h*current->pitch; + /* Create a colormap if necessary */ + if ((DGA_visualClass == PseudoColor) || (DGA_visualClass == DirectColor)) { + DGA_colormap = + SDL_NAME (XDGACreateColormap) (DGA_Display, DGA_Screen, mode, + AllocAll); + if (DGA_visualClass == PseudoColor) { + current->flags |= SDL_HWPALETTE; + } else { + /* Initialize the colormap to the identity mapping */ + SDL_GetGammaRamp (0, 0, 0); + this->screen = current; + DGA_SetGammaRamp (this, this->gamma); + this->screen = NULL; + } + } else { + DGA_colormap = + SDL_NAME (XDGACreateColormap) (DGA_Display, DGA_Screen, mode, + AllocNone); + } + SDL_NAME (XDGAInstallColormap) (DGA_Display, DGA_Screen, DGA_colormap); - /* Create a colormap if necessary */ - if ( (DGA_visualClass == PseudoColor) || - (DGA_visualClass == DirectColor) ) { - DGA_colormap = SDL_NAME(XDGACreateColormap)(DGA_Display, DGA_Screen, - mode, AllocAll); - if ( DGA_visualClass == PseudoColor ) { - current->flags |= SDL_HWPALETTE; - } else { - /* Initialize the colormap to the identity mapping */ - SDL_GetGammaRamp(0, 0, 0); - this->screen = current; - DGA_SetGammaRamp(this, this->gamma); - this->screen = NULL; - } - } else { - DGA_colormap = SDL_NAME(XDGACreateColormap)(DGA_Display, DGA_Screen, - mode, AllocNone); - } - SDL_NAME(XDGAInstallColormap)(DGA_Display, DGA_Screen, DGA_colormap); + /* Update the hardware capabilities */ + UpdateHWInfo (this, &mode->mode); - /* Update the hardware capabilities */ - UpdateHWInfo(this, &mode->mode); - - /* Set up the information for hardware surfaces */ - surfaces_mem = (Uint8 *)current->pixels + screen_len; - surfaces_len = (mode->mode.imageHeight*current->pitch - screen_len); + /* Set up the information for hardware surfaces */ + surfaces_mem = (Uint8 *) current->pixels + screen_len; + surfaces_len = (mode->mode.imageHeight * current->pitch - screen_len); - /* Update for double-buffering, if we can */ - SDL_NAME(XDGASetViewport)(DGA_Display, DGA_Screen, 0, 0, XDGAFlipRetrace); - if ( flags & SDL_DOUBLEBUF ) { - if ( mode->mode.imageHeight >= (current->h*2) ) { - current->flags |= SDL_DOUBLEBUF; - flip_page = 0; - flip_yoffset[0] = 0; - flip_yoffset[1] = current->h; - flip_address[0] = memory_base; - flip_address[1] = memory_base+screen_len; - surfaces_mem += screen_len; - surfaces_len -= screen_len; - } - } + /* Update for double-buffering, if we can */ + SDL_NAME (XDGASetViewport) (DGA_Display, DGA_Screen, 0, 0, + XDGAFlipRetrace); + if (flags & SDL_DOUBLEBUF) { + if (mode->mode.imageHeight >= (current->h * 2)) { + current->flags |= SDL_DOUBLEBUF; + flip_page = 0; + flip_yoffset[0] = 0; + flip_yoffset[1] = current->h; + flip_address[0] = memory_base; + flip_address[1] = memory_base + screen_len; + surfaces_mem += screen_len; + surfaces_len -= screen_len; + } + } - /* Allocate memory tracking for hardware surfaces */ - DGA_FreeHWSurfaces(this); - if ( surfaces_len < 0 ) { - surfaces_len = 0; - } - DGA_InitHWSurfaces(this, current, surfaces_mem, surfaces_len); + /* Allocate memory tracking for hardware surfaces */ + DGA_FreeHWSurfaces (this); + if (surfaces_len < 0) { + surfaces_len = 0; + } + DGA_InitHWSurfaces (this, current, surfaces_mem, surfaces_len); - /* Expose the back buffer as surface memory */ - if ( current->flags & SDL_DOUBLEBUF ) { - this->screen = current; - DGA_FlipHWSurface(this, current); - this->screen = NULL; - } + /* Expose the back buffer as surface memory */ + if (current->flags & SDL_DOUBLEBUF) { + this->screen = current; + DGA_FlipHWSurface (this, current); + this->screen = NULL; + } - /* Set the update rectangle function */ - this->UpdateRects = DGA_DirectUpdate; + /* Set the update rectangle function */ + this->UpdateRects = DGA_DirectUpdate; - /* Enable mouse and keyboard support */ - { long input_mask; - input_mask = (KeyPressMask | KeyReleaseMask); - input_mask |= (ButtonPressMask | ButtonReleaseMask); - input_mask |= PointerMotionMask; - SDL_NAME(XDGASelectInput)(DGA_Display, DGA_Screen, input_mask); - } + /* Enable mouse and keyboard support */ + { + long input_mask; + input_mask = (KeyPressMask | KeyReleaseMask); + input_mask |= (ButtonPressMask | ButtonReleaseMask); + input_mask |= PointerMotionMask; + SDL_NAME (XDGASelectInput) (DGA_Display, DGA_Screen, input_mask); + } - /* We're done */ - return(current); + /* We're done */ + return (current); } #ifdef DGA_DEBUG -static void DGA_DumpHWSurfaces(_THIS) +static void +DGA_DumpHWSurfaces (_THIS) { - vidmem_bucket *bucket; + vidmem_bucket *bucket; - printf("Memory left: %d (%d total)\n", surfaces_memleft, surfaces_memtotal); - printf("\n"); - printf(" Base Size\n"); - for ( bucket=&surfaces; bucket; bucket=bucket->next ) { - printf("Bucket: %p, %d (%s)\n", bucket->base, bucket->size, bucket->used ? "used" : "free"); - if ( bucket->prev ) { - if ( bucket->base != bucket->prev->base+bucket->prev->size ) { - printf("Warning, corrupt bucket list! (prev)\n"); - } - } else { - if ( bucket != &surfaces ) { - printf("Warning, corrupt bucket list! (!prev)\n"); - } - } - if ( bucket->next ) { - if ( bucket->next->base != bucket->base+bucket->size ) { - printf("Warning, corrupt bucket list! (next)\n"); - } - } - } - printf("\n"); + printf ("Memory left: %d (%d total)\n", surfaces_memleft, + surfaces_memtotal); + printf ("\n"); + printf (" Base Size\n"); + for (bucket = &surfaces; bucket; bucket = bucket->next) { + printf ("Bucket: %p, %d (%s)\n", bucket->base, bucket->size, + bucket->used ? "used" : "free"); + if (bucket->prev) { + if (bucket->base != bucket->prev->base + bucket->prev->size) { + printf ("Warning, corrupt bucket list! (prev)\n"); + } + } else { + if (bucket != &surfaces) { + printf ("Warning, corrupt bucket list! (!prev)\n"); + } + } + if (bucket->next) { + if (bucket->next->base != bucket->base + bucket->size) { + printf ("Warning, corrupt bucket list! (next)\n"); + } + } + } + printf ("\n"); } #endif -static int DGA_InitHWSurfaces(_THIS, SDL_Surface *screen, Uint8 *base, int size) +static int +DGA_InitHWSurfaces (_THIS, SDL_Surface * screen, Uint8 * base, int size) { - vidmem_bucket *bucket; + vidmem_bucket *bucket; - surfaces_memtotal = size; - surfaces_memleft = size; + surfaces_memtotal = size; + surfaces_memleft = size; - if ( surfaces_memleft > 0 ) { - bucket = (vidmem_bucket *)SDL_malloc(sizeof(*bucket)); - if ( bucket == NULL ) { - SDL_OutOfMemory(); - return(-1); - } - bucket->prev = &surfaces; - bucket->used = 0; - bucket->dirty = 0; - bucket->base = base; - bucket->size = size; - bucket->next = NULL; - } else { - bucket = NULL; - } + if (surfaces_memleft > 0) { + bucket = (vidmem_bucket *) SDL_malloc (sizeof (*bucket)); + if (bucket == NULL) { + SDL_OutOfMemory (); + return (-1); + } + bucket->prev = &surfaces; + bucket->used = 0; + bucket->dirty = 0; + bucket->base = base; + bucket->size = size; + bucket->next = NULL; + } else { + bucket = NULL; + } - surfaces.prev = NULL; - surfaces.used = 1; - surfaces.dirty = 0; - surfaces.base = screen->pixels; - surfaces.size = (unsigned int)((long)base - (long)surfaces.base); - surfaces.next = bucket; - screen->hwdata = (struct private_hwdata *)&surfaces; - return(0); + surfaces.prev = NULL; + surfaces.used = 1; + surfaces.dirty = 0; + surfaces.base = screen->pixels; + surfaces.size = (unsigned int) ((long) base - (long) surfaces.base); + surfaces.next = bucket; + screen->hwdata = (struct private_hwdata *) &surfaces; + return (0); } -static void DGA_FreeHWSurfaces(_THIS) +static void +DGA_FreeHWSurfaces (_THIS) { - vidmem_bucket *bucket, *freeable; + vidmem_bucket *bucket, *freeable; - bucket = surfaces.next; - while ( bucket ) { - freeable = bucket; - bucket = bucket->next; - SDL_free(freeable); - } - surfaces.next = NULL; + bucket = surfaces.next; + while (bucket) { + freeable = bucket; + bucket = bucket->next; + SDL_free (freeable); + } + surfaces.next = NULL; } -static __inline__ void DGA_AddBusySurface(SDL_Surface *surface) +static __inline__ void +DGA_AddBusySurface (SDL_Surface * surface) { - ((vidmem_bucket *)surface->hwdata)->dirty = 1; + ((vidmem_bucket *) surface->hwdata)->dirty = 1; } -static __inline__ int DGA_IsSurfaceBusy(SDL_Surface *surface) +static __inline__ int +DGA_IsSurfaceBusy (SDL_Surface * surface) { - return ((vidmem_bucket *)surface->hwdata)->dirty; + return ((vidmem_bucket *) surface->hwdata)->dirty; } -static __inline__ void DGA_WaitBusySurfaces(_THIS) +static __inline__ void +DGA_WaitBusySurfaces (_THIS) { - vidmem_bucket *bucket; + vidmem_bucket *bucket; - /* Wait for graphic operations to complete */ - SDL_NAME(XDGASync)(DGA_Display, DGA_Screen); + /* Wait for graphic operations to complete */ + SDL_NAME (XDGASync) (DGA_Display, DGA_Screen); - /* Clear all surface dirty bits */ - for ( bucket=&surfaces; bucket; bucket=bucket->next ) { - bucket->dirty = 0; - } + /* Clear all surface dirty bits */ + for (bucket = &surfaces; bucket; bucket = bucket->next) { + bucket->dirty = 0; + } } -static int DGA_AllocHWSurface(_THIS, SDL_Surface *surface) +static int +DGA_AllocHWSurface (_THIS, SDL_Surface * surface) { - vidmem_bucket *bucket; - int size; - int extra; - int retval = 0; + vidmem_bucket *bucket; + int size; + int extra; + int retval = 0; /* Temporarily, we only allow surfaces the same width as display. Some blitters require the pitch between two hardware surfaces to be the same. Others have interesting alignment restrictions. */ -if ( surface->pitch > SDL_VideoSurface->pitch ) { - SDL_SetError("Surface requested wider than screen"); - return(-1); -} -surface->pitch = SDL_VideoSurface->pitch; - size = surface->h * surface->pitch; + if (surface->pitch > SDL_VideoSurface->pitch) { + SDL_SetError ("Surface requested wider than screen"); + return (-1); + } + surface->pitch = SDL_VideoSurface->pitch; + size = surface->h * surface->pitch; #ifdef DGA_DEBUG - fprintf(stderr, "Allocating bucket of %d bytes\n", size); + fprintf (stderr, "Allocating bucket of %d bytes\n", size); #endif - LOCK_DISPLAY(); + LOCK_DISPLAY (); - /* Quick check for available mem */ - if ( size > surfaces_memleft ) { - SDL_SetError("Not enough video memory"); - retval = -1; - goto done; - } + /* Quick check for available mem */ + if (size > surfaces_memleft) { + SDL_SetError ("Not enough video memory"); + retval = -1; + goto done; + } - /* Search for an empty bucket big enough */ - for ( bucket=&surfaces; bucket; bucket=bucket->next ) { - if ( ! bucket->used && (size <= bucket->size) ) { - break; - } - } - if ( bucket == NULL ) { - SDL_SetError("Video memory too fragmented"); - retval = -1; - goto done; - } + /* Search for an empty bucket big enough */ + for (bucket = &surfaces; bucket; bucket = bucket->next) { + if (!bucket->used && (size <= bucket->size)) { + break; + } + } + if (bucket == NULL) { + SDL_SetError ("Video memory too fragmented"); + retval = -1; + goto done; + } - /* Create a new bucket for left-over memory */ - extra = (bucket->size - size); - if ( extra ) { - vidmem_bucket *newbucket; + /* Create a new bucket for left-over memory */ + extra = (bucket->size - size); + if (extra) { + vidmem_bucket *newbucket; #ifdef DGA_DEBUG - fprintf(stderr, "Adding new free bucket of %d bytes\n", extra); + fprintf (stderr, "Adding new free bucket of %d bytes\n", extra); #endif - newbucket = (vidmem_bucket *)SDL_malloc(sizeof(*newbucket)); - if ( newbucket == NULL ) { - SDL_OutOfMemory(); - retval = -1; - goto done; - } - newbucket->prev = bucket; - newbucket->used = 0; - newbucket->base = bucket->base+size; - newbucket->size = extra; - newbucket->next = bucket->next; - if ( bucket->next ) { - bucket->next->prev = newbucket; - } - bucket->next = newbucket; - } + newbucket = (vidmem_bucket *) SDL_malloc (sizeof (*newbucket)); + if (newbucket == NULL) { + SDL_OutOfMemory (); + retval = -1; + goto done; + } + newbucket->prev = bucket; + newbucket->used = 0; + newbucket->base = bucket->base + size; + newbucket->size = extra; + newbucket->next = bucket->next; + if (bucket->next) { + bucket->next->prev = newbucket; + } + bucket->next = newbucket; + } - /* Set the current bucket values and return it! */ - bucket->used = 1; - bucket->size = size; - bucket->dirty = 0; + /* Set the current bucket values and return it! */ + bucket->used = 1; + bucket->size = size; + bucket->dirty = 0; #ifdef DGA_DEBUG - fprintf(stderr, "Allocated %d bytes at %p\n", bucket->size, bucket->base); + fprintf (stderr, "Allocated %d bytes at %p\n", bucket->size, + bucket->base); #endif - surfaces_memleft -= size; - surface->flags |= SDL_HWSURFACE; - surface->pixels = bucket->base; - surface->hwdata = (struct private_hwdata *)bucket; -done: - UNLOCK_DISPLAY(); - return(retval); + surfaces_memleft -= size; + surface->flags |= SDL_HWSURFACE; + surface->pixels = bucket->base; + surface->hwdata = (struct private_hwdata *) bucket; + done: + UNLOCK_DISPLAY (); + return (retval); } -static void DGA_FreeHWSurface(_THIS, SDL_Surface *surface) +static void +DGA_FreeHWSurface (_THIS, SDL_Surface * surface) { - vidmem_bucket *bucket, *freeable; + vidmem_bucket *bucket, *freeable; - /* Wait for any pending operations involving this surface */ - if ( DGA_IsSurfaceBusy(surface) ) { - LOCK_DISPLAY(); - DGA_WaitBusySurfaces(this); - UNLOCK_DISPLAY(); - } + /* Wait for any pending operations involving this surface */ + if (DGA_IsSurfaceBusy (surface)) { + LOCK_DISPLAY (); + DGA_WaitBusySurfaces (this); + UNLOCK_DISPLAY (); + } - /* Look for the bucket in the current list */ - for ( bucket=&surfaces; bucket; bucket=bucket->next ) { - if ( bucket == (vidmem_bucket *)surface->hwdata ) { - break; - } - } - if ( bucket && bucket->used ) { - /* Add the memory back to the total */ + /* Look for the bucket in the current list */ + for (bucket = &surfaces; bucket; bucket = bucket->next) { + if (bucket == (vidmem_bucket *) surface->hwdata) { + break; + } + } + if (bucket && bucket->used) { + /* Add the memory back to the total */ #ifdef DGA_DEBUG - printf("Freeing bucket of %d bytes\n", bucket->size); + printf ("Freeing bucket of %d bytes\n", bucket->size); #endif - surfaces_memleft += bucket->size; + surfaces_memleft += bucket->size; - /* Can we merge the space with surrounding buckets? */ - bucket->used = 0; - if ( bucket->next && ! bucket->next->used ) { + /* Can we merge the space with surrounding buckets? */ + bucket->used = 0; + if (bucket->next && !bucket->next->used) { #ifdef DGA_DEBUG - printf("Merging with next bucket, for %d total bytes\n", bucket->size+bucket->next->size); + printf ("Merging with next bucket, for %d total bytes\n", + bucket->size + bucket->next->size); #endif - freeable = bucket->next; - bucket->size += bucket->next->size; - bucket->next = bucket->next->next; - if ( bucket->next ) { - bucket->next->prev = bucket; - } - SDL_free(freeable); - } - if ( bucket->prev && ! bucket->prev->used ) { + freeable = bucket->next; + bucket->size += bucket->next->size; + bucket->next = bucket->next->next; + if (bucket->next) { + bucket->next->prev = bucket; + } + SDL_free (freeable); + } + if (bucket->prev && !bucket->prev->used) { #ifdef DGA_DEBUG - printf("Merging with previous bucket, for %d total bytes\n", bucket->prev->size+bucket->size); + printf ("Merging with previous bucket, for %d total bytes\n", + bucket->prev->size + bucket->size); #endif - freeable = bucket; - bucket->prev->size += bucket->size; - bucket->prev->next = bucket->next; - if ( bucket->next ) { - bucket->next->prev = bucket->prev; - } - SDL_free(freeable); - } - } - surface->pixels = NULL; - surface->hwdata = NULL; + freeable = bucket; + bucket->prev->size += bucket->size; + bucket->prev->next = bucket->next; + if (bucket->next) { + bucket->next->prev = bucket->prev; + } + SDL_free (freeable); + } + } + surface->pixels = NULL; + surface->hwdata = NULL; } -static __inline__ void DGA_dst_to_xy(_THIS, SDL_Surface *dst, int *x, int *y) +static __inline__ void +DGA_dst_to_xy (_THIS, SDL_Surface * dst, int *x, int *y) { - *x = (long)((Uint8 *)dst->pixels - memory_base)%memory_pitch; - *y = (long)((Uint8 *)dst->pixels - memory_base)/memory_pitch; + *x = (long) ((Uint8 *) dst->pixels - memory_base) % memory_pitch; + *y = (long) ((Uint8 *) dst->pixels - memory_base) / memory_pitch; } -static int DGA_FillHWRect(_THIS, SDL_Surface *dst, SDL_Rect *rect, Uint32 color) +static int +DGA_FillHWRect (_THIS, SDL_Surface * dst, SDL_Rect * rect, Uint32 color) { - int x, y; - unsigned int w, h; + int x, y; + unsigned int w, h; - /* Don't fill the visible part of the screen, wait until flipped */ - LOCK_DISPLAY(); - if ( was_flipped && (dst == this->screen) ) { - while ( SDL_NAME(XDGAGetViewportStatus)(DGA_Display, DGA_Screen) ) - /* Keep waiting for the hardware ... */ ; - was_flipped = 0; - } - DGA_dst_to_xy(this, dst, &x, &y); - x += rect->x; - y += rect->y; - w = rect->w; - h = rect->h; + /* Don't fill the visible part of the screen, wait until flipped */ + LOCK_DISPLAY (); + if (was_flipped && (dst == this->screen)) { + while (SDL_NAME (XDGAGetViewportStatus) (DGA_Display, DGA_Screen)) + /* Keep waiting for the hardware ... */ ; + was_flipped = 0; + } + DGA_dst_to_xy (this, dst, &x, &y); + x += rect->x; + y += rect->y; + w = rect->w; + h = rect->h; #if 0 - printf("Hardware accelerated rectangle fill: %dx%d at %d,%d\n", w, h, x, y); + printf ("Hardware accelerated rectangle fill: %dx%d at %d,%d\n", w, h, x, + y); #endif - SDL_NAME(XDGAFillRectangle)(DGA_Display, DGA_Screen, x, y, w, h, color); - if ( !(this->screen->flags & SDL_DOUBLEBUF) ) { - XFlush(DGA_Display); - } - DGA_AddBusySurface(dst); - UNLOCK_DISPLAY(); - return(0); + SDL_NAME (XDGAFillRectangle) (DGA_Display, DGA_Screen, x, y, w, h, color); + if (!(this->screen->flags & SDL_DOUBLEBUF)) { + XFlush (DGA_Display); + } + DGA_AddBusySurface (dst); + UNLOCK_DISPLAY (); + return (0); } -static int HWAccelBlit(SDL_Surface *src, SDL_Rect *srcrect, - SDL_Surface *dst, SDL_Rect *dstrect) +static int +HWAccelBlit (SDL_Surface * src, SDL_Rect * srcrect, + SDL_Surface * dst, SDL_Rect * dstrect) { - SDL_VideoDevice *this; - int srcx, srcy; - int dstx, dsty; - unsigned int w, h; + SDL_VideoDevice *this; + int srcx, srcy; + int dstx, dsty; + unsigned int w, h; - this = current_video; - /* Don't blit to the visible part of the screen, wait until flipped */ - LOCK_DISPLAY(); - if ( was_flipped && (dst == this->screen) ) { - while ( SDL_NAME(XDGAGetViewportStatus)(DGA_Display, DGA_Screen) ) - /* Keep waiting for the hardware ... */ ; - was_flipped = 0; - } - DGA_dst_to_xy(this, src, &srcx, &srcy); - srcx += srcrect->x; - srcy += srcrect->y; - DGA_dst_to_xy(this, dst, &dstx, &dsty); - dstx += dstrect->x; - dsty += dstrect->y; - w = srcrect->w; - h = srcrect->h; + this = current_video; + /* Don't blit to the visible part of the screen, wait until flipped */ + LOCK_DISPLAY (); + if (was_flipped && (dst == this->screen)) { + while (SDL_NAME (XDGAGetViewportStatus) (DGA_Display, DGA_Screen)) + /* Keep waiting for the hardware ... */ ; + was_flipped = 0; + } + DGA_dst_to_xy (this, src, &srcx, &srcy); + srcx += srcrect->x; + srcy += srcrect->y; + DGA_dst_to_xy (this, dst, &dstx, &dsty); + dstx += dstrect->x; + dsty += dstrect->y; + w = srcrect->w; + h = srcrect->h; #if 0 - printf("Blitting %dx%d from %d,%d to %d,%d\n", w, h, srcx, srcy, dstx, dsty); + printf ("Blitting %dx%d from %d,%d to %d,%d\n", w, h, srcx, srcy, dstx, + dsty); #endif - if ( (src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY ) { - SDL_NAME(XDGACopyTransparentArea)(DGA_Display, DGA_Screen, - srcx, srcy, w, h, dstx, dsty, src->format->colorkey); - } else { - SDL_NAME(XDGACopyArea)(DGA_Display, DGA_Screen, - srcx, srcy, w, h, dstx, dsty); - } - if ( !(this->screen->flags & SDL_DOUBLEBUF) ) { - XFlush(DGA_Display); - } - DGA_AddBusySurface(src); - DGA_AddBusySurface(dst); - UNLOCK_DISPLAY(); - return(0); + if ((src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY) { + SDL_NAME (XDGACopyTransparentArea) (DGA_Display, DGA_Screen, + srcx, srcy, w, h, dstx, dsty, + src->format->colorkey); + } else { + SDL_NAME (XDGACopyArea) (DGA_Display, DGA_Screen, + srcx, srcy, w, h, dstx, dsty); + } + if (!(this->screen->flags & SDL_DOUBLEBUF)) { + XFlush (DGA_Display); + } + DGA_AddBusySurface (src); + DGA_AddBusySurface (dst); + UNLOCK_DISPLAY (); + return (0); } -static int DGA_CheckHWBlit(_THIS, SDL_Surface *src, SDL_Surface *dst) +static int +DGA_CheckHWBlit (_THIS, SDL_Surface * src, SDL_Surface * dst) { - int accelerated; + int accelerated; - /* Set initial acceleration on */ - src->flags |= SDL_HWACCEL; + /* Set initial acceleration on */ + src->flags |= SDL_HWACCEL; - /* Set the surface attributes */ - if ( (src->flags & SDL_SRCALPHA) == SDL_SRCALPHA ) { - if ( ! this->info.blit_hw_A ) { - src->flags &= ~SDL_HWACCEL; - } - } - if ( (src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY ) { - if ( ! this->info.blit_hw_CC ) { - src->flags &= ~SDL_HWACCEL; - } - } + /* Set the surface attributes */ + if ((src->flags & SDL_SRCALPHA) == SDL_SRCALPHA) { + if (!this->info.blit_hw_A) { + src->flags &= ~SDL_HWACCEL; + } + } + if ((src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY) { + if (!this->info.blit_hw_CC) { + src->flags &= ~SDL_HWACCEL; + } + } - /* Check to see if final surface blit is accelerated */ - accelerated = !!(src->flags & SDL_HWACCEL); - if ( accelerated ) { - src->map->hw_blit = HWAccelBlit; - } - return(accelerated); + /* Check to see if final surface blit is accelerated */ + accelerated = !!(src->flags & SDL_HWACCEL); + if (accelerated) { + src->map->hw_blit = HWAccelBlit; + } + return (accelerated); } -static __inline__ void DGA_WaitFlip(_THIS) +static __inline__ void +DGA_WaitFlip (_THIS) { - if ( was_flipped ) { - while ( SDL_NAME(XDGAGetViewportStatus)(DGA_Display, DGA_Screen) ) - /* Keep waiting for the hardware ... */ ; - was_flipped = 0; - } + if (was_flipped) { + while (SDL_NAME (XDGAGetViewportStatus) (DGA_Display, DGA_Screen)) + /* Keep waiting for the hardware ... */ ; + was_flipped = 0; + } } -static int DGA_LockHWSurface(_THIS, SDL_Surface *surface) +static int +DGA_LockHWSurface (_THIS, SDL_Surface * surface) { - if ( surface == this->screen ) { - SDL_mutexP(hw_lock); - LOCK_DISPLAY(); - if ( DGA_IsSurfaceBusy(surface) ) { - DGA_WaitBusySurfaces(this); - } - DGA_WaitFlip(this); - UNLOCK_DISPLAY(); - } else { - if ( DGA_IsSurfaceBusy(surface) ) { - LOCK_DISPLAY(); - DGA_WaitBusySurfaces(this); - UNLOCK_DISPLAY(); - } - } - return(0); + if (surface == this->screen) { + SDL_mutexP (hw_lock); + LOCK_DISPLAY (); + if (DGA_IsSurfaceBusy (surface)) { + DGA_WaitBusySurfaces (this); + } + DGA_WaitFlip (this); + UNLOCK_DISPLAY (); + } else { + if (DGA_IsSurfaceBusy (surface)) { + LOCK_DISPLAY (); + DGA_WaitBusySurfaces (this); + UNLOCK_DISPLAY (); + } + } + return (0); } -static void DGA_UnlockHWSurface(_THIS, SDL_Surface *surface) +static void +DGA_UnlockHWSurface (_THIS, SDL_Surface * surface) { - if ( surface == this->screen ) { - SDL_mutexV(hw_lock); - } + if (surface == this->screen) { + SDL_mutexV (hw_lock); + } } -static int DGA_FlipHWSurface(_THIS, SDL_Surface *surface) +static int +DGA_FlipHWSurface (_THIS, SDL_Surface * surface) { - /* Wait for vertical retrace and then flip display */ - LOCK_DISPLAY(); - if ( DGA_IsSurfaceBusy(this->screen) ) { - DGA_WaitBusySurfaces(this); - } - DGA_WaitFlip(this); - SDL_NAME(XDGASetViewport)(DGA_Display, DGA_Screen, - 0, flip_yoffset[flip_page], XDGAFlipRetrace); - XFlush(DGA_Display); - UNLOCK_DISPLAY(); - was_flipped = 1; - flip_page = !flip_page; + /* Wait for vertical retrace and then flip display */ + LOCK_DISPLAY (); + if (DGA_IsSurfaceBusy (this->screen)) { + DGA_WaitBusySurfaces (this); + } + DGA_WaitFlip (this); + SDL_NAME (XDGASetViewport) (DGA_Display, DGA_Screen, + 0, flip_yoffset[flip_page], XDGAFlipRetrace); + XFlush (DGA_Display); + UNLOCK_DISPLAY (); + was_flipped = 1; + flip_page = !flip_page; - surface->pixels = flip_address[flip_page]; - return(0); + surface->pixels = flip_address[flip_page]; + return (0); } -static void DGA_DirectUpdate(_THIS, int numrects, SDL_Rect *rects) +static void +DGA_DirectUpdate (_THIS, int numrects, SDL_Rect * rects) { - /* The application is already updating the visible video memory */ - return; + /* The application is already updating the visible video memory */ + return; } -static int DGA_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors) +static int +DGA_SetColors (_THIS, int firstcolor, int ncolors, SDL_Color * colors) { - int i; - XColor *xcmap; + int i; + XColor *xcmap; - /* This happens on initialization */ - if ( ! DGA_colormap ) { - return(0); - } - xcmap = SDL_stack_alloc(XColor, ncolors); - for ( i=0; i<ncolors; ++i ) { - xcmap[i].pixel = firstcolor + i; - xcmap[i].red = (colors[i].r<<8)|colors[i].r; - xcmap[i].green = (colors[i].g<<8)|colors[i].g; - xcmap[i].blue = (colors[i].b<<8)|colors[i].b; - xcmap[i].flags = (DoRed|DoGreen|DoBlue); - } - LOCK_DISPLAY(); - XStoreColors(DGA_Display, DGA_colormap, xcmap, ncolors); - XSync(DGA_Display, False); - UNLOCK_DISPLAY(); - SDL_stack_free(xcmap); + /* This happens on initialization */ + if (!DGA_colormap) { + return (0); + } + xcmap = SDL_stack_alloc (XColor, ncolors); + for (i = 0; i < ncolors; ++i) { + xcmap[i].pixel = firstcolor + i; + xcmap[i].red = (colors[i].r << 8) | colors[i].r; + xcmap[i].green = (colors[i].g << 8) | colors[i].g; + xcmap[i].blue = (colors[i].b << 8) | colors[i].b; + xcmap[i].flags = (DoRed | DoGreen | DoBlue); + } + LOCK_DISPLAY (); + XStoreColors (DGA_Display, DGA_colormap, xcmap, ncolors); + XSync (DGA_Display, False); + UNLOCK_DISPLAY (); + SDL_stack_free (xcmap); - /* That was easy. :) */ - return(1); + /* That was easy. :) */ + return (1); } -int DGA_SetGammaRamp(_THIS, Uint16 *ramp) +int +DGA_SetGammaRamp (_THIS, Uint16 * ramp) { - int i, ncolors; - XColor xcmap[256]; + int i, ncolors; + XColor xcmap[256]; - /* See if actually setting the gamma is supported */ - if ( DGA_visualClass != DirectColor ) { - SDL_SetError("Gamma correction not supported on this visual"); - return(-1); - } + /* See if actually setting the gamma is supported */ + if (DGA_visualClass != DirectColor) { + SDL_SetError ("Gamma correction not supported on this visual"); + return (-1); + } - /* Calculate the appropriate palette for the given gamma ramp */ - if ( this->screen->format->BitsPerPixel <= 16 ) { - ncolors = 64; /* Is this right? */ - } else { - ncolors = 256; - } - for ( i=0; i<ncolors; ++i ) { - Uint8 c = (256 * i / ncolors); - xcmap[i].pixel = SDL_MapRGB(this->screen->format, c, c, c); - xcmap[i].red = ramp[0*256+c]; - xcmap[i].green = ramp[1*256+c]; - xcmap[i].blue = ramp[2*256+c]; - xcmap[i].flags = (DoRed|DoGreen|DoBlue); - } - LOCK_DISPLAY(); - XStoreColors(DGA_Display, DGA_colormap, xcmap, ncolors); - XSync(DGA_Display, False); - UNLOCK_DISPLAY(); - return(0); + /* Calculate the appropriate palette for the given gamma ramp */ + if (this->screen->format->BitsPerPixel <= 16) { + ncolors = 64; /* Is this right? */ + } else { + ncolors = 256; + } + for (i = 0; i < ncolors; ++i) { + Uint8 c = (256 * i / ncolors); + xcmap[i].pixel = SDL_MapRGB (this->screen->format, c, c, c); + xcmap[i].red = ramp[0 * 256 + c]; + xcmap[i].green = ramp[1 * 256 + c]; + xcmap[i].blue = ramp[2 * 256 + c]; + xcmap[i].flags = (DoRed | DoGreen | DoBlue); + } + LOCK_DISPLAY (); + XStoreColors (DGA_Display, DGA_colormap, xcmap, ncolors); + XSync (DGA_Display, False); + UNLOCK_DISPLAY (); + return (0); } -void DGA_VideoQuit(_THIS) +void +DGA_VideoQuit (_THIS) { - int i, j; + int i, j; - if ( DGA_Display ) { - /* Free colormap, if necessary */ - if ( DGA_colormap ) { - XFreeColormap(DGA_Display, DGA_colormap); - DGA_colormap = 0; - } + if (DGA_Display) { + /* Free colormap, if necessary */ + if (DGA_colormap) { + XFreeColormap (DGA_Display, DGA_colormap); + DGA_colormap = 0; + } - /* Unmap memory and reset video mode */ - SDL_NAME(XDGACloseFramebuffer)(DGA_Display, DGA_Screen); - if ( this->screen ) { - /* Tell SDL not to free the pixels */ - DGA_FreeHWSurface(this, this->screen); - } - SDL_NAME(XDGASetMode)(DGA_Display, DGA_Screen, 0); + /* Unmap memory and reset video mode */ + SDL_NAME (XDGACloseFramebuffer) (DGA_Display, DGA_Screen); + if (this->screen) { + /* Tell SDL not to free the pixels */ + DGA_FreeHWSurface (this, this->screen); + } + SDL_NAME (XDGASetMode) (DGA_Display, DGA_Screen, 0); - /* Clear the lock mutex */ - if ( hw_lock != NULL ) { - SDL_DestroyMutex(hw_lock); - hw_lock = NULL; - } + /* Clear the lock mutex */ + if (hw_lock != NULL) { + SDL_DestroyMutex (hw_lock); + hw_lock = NULL; + } #ifdef LOCK_DGA_DISPLAY - if ( event_lock != NULL ) { - SDL_DestroyMutex(event_lock); - event_lock = NULL; - } + if (event_lock != NULL) { + SDL_DestroyMutex (event_lock); + event_lock = NULL; + } #endif /* LOCK_DGA_DISPLAY */ - /* Clean up defined video modes */ - 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; - } - } + /* Clean up defined video modes */ + 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; + } + } - /* Clean up the memory bucket list */ - DGA_FreeHWSurfaces(this); + /* Clean up the memory bucket list */ + DGA_FreeHWSurfaces (this); + + /* Restore DPMS and screensaver settings */ + X11_RestoreScreenSaver (DGA_Display, screensaver_timeout, + dpms_enabled); - /* Restore DPMS and screensaver settings */ - X11_RestoreScreenSaver(DGA_Display, screensaver_timeout, dpms_enabled); + /* Close up the display */ + XCloseDisplay (DGA_Display); + } +} - /* Close up the display */ - XCloseDisplay(DGA_Display); - } -} +/* vi: set ts=4 sw=4 expandtab: */