aboutsummaryrefslogtreecommitdiffstats
path: root/distrib/sdl-1.2.15/src/video/directfb/SDL_DirectFB_video.c
diff options
context:
space:
mode:
Diffstat (limited to 'distrib/sdl-1.2.15/src/video/directfb/SDL_DirectFB_video.c')
-rw-r--r--distrib/sdl-1.2.15/src/video/directfb/SDL_DirectFB_video.c1171
1 files changed, 1171 insertions, 0 deletions
diff --git a/distrib/sdl-1.2.15/src/video/directfb/SDL_DirectFB_video.c b/distrib/sdl-1.2.15/src/video/directfb/SDL_DirectFB_video.c
new file mode 100644
index 0000000..f665ec6
--- /dev/null
+++ b/distrib/sdl-1.2.15/src/video/directfb/SDL_DirectFB_video.c
@@ -0,0 +1,1171 @@
+/*
+ SDL - Simple DirectMedia Layer
+ Copyright (C) 1997-2012 Sam Lantinga
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ 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
+
+ Sam Lantinga
+ slouken@libsdl.org
+
+ MGA CRTC2 support by Thomas Jarosch - tomj@simonv.com
+ CRTC2 support is inspired by mplayer's dfbmga driver
+ written by Ville Syrj��<syrjala@sci.fi>
+*/
+#include "SDL_config.h"
+
+/* DirectFB video driver implementation.
+*/
+
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/mman.h>
+
+#include <directfb.h>
+#include <directfb_version.h>
+
+#include "SDL_video.h"
+#include "SDL_mouse.h"
+#include "../SDL_sysvideo.h"
+#include "../SDL_pixels_c.h"
+#include "../../events/SDL_events_c.h"
+#include "SDL_DirectFB_video.h"
+#include "SDL_DirectFB_events.h"
+#include "SDL_DirectFB_yuv.h"
+
+/* The implementation dependent data for the window manager cursor */
+struct WMcursor {
+ int unused;
+};
+
+
+/* Initialization/Query functions */
+static int DirectFB_VideoInit(_THIS, SDL_PixelFormat *vformat);
+static SDL_Rect **DirectFB_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags);
+static SDL_Surface *DirectFB_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags);
+static int DirectFB_SetColors(_THIS, int firstcolor, int ncolors,
+ SDL_Color *colors);
+static void DirectFB_VideoQuit(_THIS);
+
+/* Hardware surface functions */
+static int DirectFB_AllocHWSurface(_THIS, SDL_Surface *surface);
+static int DirectFB_FillHWRect(_THIS, SDL_Surface *dst, SDL_Rect *dstrect, Uint32 color);
+static int DirectFB_LockHWSurface(_THIS, SDL_Surface *surface);
+static void DirectFB_UnlockHWSurface(_THIS, SDL_Surface *surface);
+static void DirectFB_FreeHWSurface(_THIS, SDL_Surface *surface);
+static int DirectFB_CheckHWBlit(_THIS, SDL_Surface *src, SDL_Surface *dst);
+static int DirectFB_HWAccelBlit(SDL_Surface *src, SDL_Rect *srcrect,
+ SDL_Surface *dst, SDL_Rect *dstrect);
+static int DirectFB_SetHWColorKey(_THIS, SDL_Surface *surface, Uint32 key);
+static int DirectFB_SetHWAlpha(_THIS, SDL_Surface *surface, Uint8 alpha);
+static int DirectFB_FlipHWSurface(_THIS, SDL_Surface *surface);
+static int DirectFB_ShowWMCursor(_THIS, WMcursor *cursor);
+
+/* Various screen update functions available */
+static void DirectFB_DirectUpdate(_THIS, int numrects, SDL_Rect *rects);
+static void DirectFB_WindowedUpdate(_THIS, int numrects, SDL_Rect *rects);
+
+/* This is the rect EnumModes2 uses */
+struct DirectFBEnumRect {
+ SDL_Rect r;
+ struct DirectFBEnumRect* next;
+};
+
+static struct DirectFBEnumRect *enumlist = NULL;
+
+
+/* DirectFB driver bootstrap functions */
+
+static int DirectFB_Available(void)
+{
+ return 1;
+}
+
+static void DirectFB_DeleteDevice(SDL_VideoDevice *device)
+{
+ SDL_free(device->hidden);
+ SDL_free(device);
+}
+
+static SDL_VideoDevice *DirectFB_CreateDevice(int devindex)
+{
+ SDL_VideoDevice *device;
+
+ /* Initialize all variables that we clean on shutdown */
+ device = (SDL_VideoDevice *)SDL_malloc(sizeof(SDL_VideoDevice));
+ if (device)
+ {
+ SDL_memset (device, 0, (sizeof *device));
+ device->hidden = (struct SDL_PrivateVideoData *) malloc (sizeof (*device->hidden));
+ }
+ if (device == NULL || device->hidden == NULL)
+ {
+ SDL_OutOfMemory();
+ if (device)
+ {
+ free (device);
+ }
+ return(0);
+ }
+ SDL_memset (device->hidden, 0, sizeof (*device->hidden));
+
+ /* Set the function pointers */
+ device->VideoInit = DirectFB_VideoInit;
+ device->ListModes = DirectFB_ListModes;
+ device->SetVideoMode = DirectFB_SetVideoMode;
+ device->SetColors = DirectFB_SetColors;
+ device->UpdateRects = NULL;
+ device->CreateYUVOverlay = DirectFB_CreateYUVOverlay;
+ device->VideoQuit = DirectFB_VideoQuit;
+ device->AllocHWSurface = DirectFB_AllocHWSurface;
+ device->CheckHWBlit = DirectFB_CheckHWBlit;
+ device->FillHWRect = DirectFB_FillHWRect;
+ device->SetHWColorKey = DirectFB_SetHWColorKey;
+ device->SetHWAlpha = DirectFB_SetHWAlpha;
+ device->LockHWSurface = DirectFB_LockHWSurface;
+ device->UnlockHWSurface = DirectFB_UnlockHWSurface;
+ device->FlipHWSurface = DirectFB_FlipHWSurface;
+ device->FreeHWSurface = DirectFB_FreeHWSurface;
+ device->ShowWMCursor = DirectFB_ShowWMCursor;
+ device->SetCaption = NULL;
+ device->SetIcon = NULL;
+ device->IconifyWindow = NULL;
+ device->GrabInput = NULL;
+ device->GetWMInfo = NULL;
+ device->InitOSKeymap = DirectFB_InitOSKeymap;
+ device->PumpEvents = DirectFB_PumpEvents;
+
+ device->free = DirectFB_DeleteDevice;
+
+ return device;
+}
+
+VideoBootStrap DirectFB_bootstrap = {
+ "directfb", "DirectFB",
+ DirectFB_Available, DirectFB_CreateDevice
+};
+
+static DFBSurfacePixelFormat GetFormatForBpp (int bpp, IDirectFBDisplayLayer *layer)
+{
+ DFBDisplayLayerConfig dlc;
+ int bytes = (bpp + 7) / 8;
+
+ layer->GetConfiguration (layer, &dlc);
+
+ if (bytes == DFB_BYTES_PER_PIXEL(dlc.pixelformat) && bytes > 1)
+ return dlc.pixelformat;
+
+ switch (bytes)
+ {
+ case 1:
+ return DSPF_LUT8;
+ case 2:
+ return DSPF_RGB16;
+ case 3:
+ return DSPF_RGB24;
+ case 4:
+ return DSPF_RGB32;
+ }
+
+ return DSPF_UNKNOWN;
+}
+
+static DFBEnumerationResult EnumModesCallback (int width,
+ int height,
+ int bpp,
+ void *data)
+{
+ SDL_VideoDevice *this = (SDL_VideoDevice *)data;
+ struct DirectFBEnumRect *enumrect;
+
+ HIDDEN->nummodes++;
+
+ if (enumlist && enumlist->r.w == width && enumlist->r.h == height)
+ return DFENUM_OK;
+
+ enumrect = SDL_calloc(1, sizeof(struct DirectFBEnumRect));
+ if (!enumrect)
+ {
+ SDL_OutOfMemory();
+ return DFENUM_CANCEL;
+ }
+
+ enumrect->r.w = (Uint16)width;
+ enumrect->r.h = (Uint16)height;
+ enumrect->next = enumlist;
+
+ enumlist = enumrect;
+
+ return DFENUM_OK;
+}
+
+struct private_hwdata {
+ IDirectFBSurface *surface;
+ IDirectFBPalette *palette;
+};
+
+void SetDirectFBerror (const char *function, DFBResult code)
+{
+ const char *error = DirectFBErrorString (code);
+
+ if (error)
+ SDL_SetError("%s: %s", function, error);
+ else
+ SDL_SetError("Unknown error code from %s", function);
+}
+
+static DFBSurfacePixelFormat SDLToDFBPixelFormat (SDL_PixelFormat *format)
+{
+ if (format->Rmask && format->Gmask && format->Bmask)
+ {
+ switch (format->BitsPerPixel)
+ {
+ case 8:
+ return DSPF_LUT8;
+
+ case 16:
+ if (format->Rmask == 0xF800 &&
+ format->Gmask == 0x07E0 &&
+ format->Bmask == 0x001F)
+ return DSPF_RGB16;
+ /* fall through */
+
+ case 15:
+ if (format->Rmask == 0x7C00 &&
+ format->Gmask == 0x03E0 &&
+ format->Bmask == 0x001F)
+ return DSPF_ARGB1555;
+ break;
+
+ case 24:
+ if (format->Rmask == 0xFF0000 &&
+ format->Gmask == 0x00FF00 &&
+ format->Bmask == 0x0000FF)
+ return DSPF_RGB24;
+ break;
+
+ case 32:
+ if (format->Rmask == 0xFF0000 &&
+ format->Gmask == 0x00FF00 &&
+ format->Bmask == 0x0000FF)
+ {
+ if (format->Amask == 0xFF000000)
+ return DSPF_ARGB;
+ else
+ return DSPF_RGB32;
+ }
+ break;
+ }
+ }
+ else
+ {
+ switch (format->BitsPerPixel)
+ {
+ case 8:
+ return DSPF_LUT8;
+ case 15:
+ return DSPF_ARGB1555;
+ case 16:
+ return DSPF_RGB16;
+ case 24:
+ return DSPF_RGB24;
+ case 32:
+ return DSPF_RGB32;
+ }
+ }
+
+ return DSPF_UNKNOWN;
+}
+
+static SDL_Palette *AllocatePalette(int size)
+{
+ SDL_Palette *palette;
+ SDL_Color *colors;
+
+ palette = SDL_calloc (1, sizeof(SDL_Palette));
+ if (!palette)
+ {
+ SDL_OutOfMemory();
+ return NULL;
+ }
+
+ colors = SDL_calloc (size, sizeof(SDL_Color));
+ if (!colors)
+ {
+ SDL_OutOfMemory();
+ return NULL;
+ }
+
+ palette->ncolors = size;
+ palette->colors = colors;
+
+ return palette;
+}
+
+static int DFBToSDLPixelFormat (DFBSurfacePixelFormat pixelformat, SDL_PixelFormat *format)
+{
+ format->Amask = format->Rmask = format->Gmask = format->Bmask = 0;
+ format->BitsPerPixel = format->BytesPerPixel = 0;
+
+ switch (pixelformat)
+ {
+ case DSPF_A8:
+ format->Amask = 0x000000FF;
+ break;
+
+ case DSPF_ARGB1555:
+ format->Rmask = 0x00007C00;
+ format->Gmask = 0x000003E0;
+ format->Bmask = 0x0000001F;
+ break;
+
+ case DSPF_RGB16:
+ format->Rmask = 0x0000F800;
+ format->Gmask = 0x000007E0;
+ format->Bmask = 0x0000001F;
+ break;
+
+ case DSPF_ARGB:
+ format->Amask = 0; /* apps don't seem to like that: 0xFF000000; */
+ /* fall through */
+ case DSPF_RGB24:
+ case DSPF_RGB32:
+ format->Rmask = 0x00FF0000;
+ format->Gmask = 0x0000FF00;
+ format->Bmask = 0x000000FF;
+ break;
+
+ case DSPF_LUT8:
+ format->Rmask = 0x000000FF;
+ format->Gmask = 0x000000FF;
+ format->Bmask = 0x000000FF;
+
+ if (!format->palette)
+ format->palette = AllocatePalette(256);
+ break;
+
+ default:
+ fprintf (stderr, "SDL_DirectFB: Unsupported pixelformat (0x%08x)!\n", pixelformat);
+ return -1;
+ }
+
+ format->BitsPerPixel = DFB_BYTES_PER_PIXEL(pixelformat) * 8;
+ format->BytesPerPixel = DFB_BYTES_PER_PIXEL(pixelformat);
+
+ return 0;
+}
+
+
+int DirectFB_VideoInit(_THIS, SDL_PixelFormat *vformat)
+{
+ int i;
+ DFBResult ret;
+#if (DIRECTFB_MAJOR_VERSION == 0) && (DIRECTFB_MINOR_VERSION == 9) && (DIRECTFB_MICRO_VERSION < 23)
+ DFBCardCapabilities caps;
+#else
+ DFBGraphicsDeviceDescription caps;
+#endif
+ DFBDisplayLayerConfig dlc;
+ struct DirectFBEnumRect *rect;
+ IDirectFB *dfb = NULL;
+ IDirectFBDisplayLayer *layer = NULL;
+ IDirectFBEventBuffer *events = NULL;
+
+ HIDDEN->c2layer = NULL, HIDDEN->c2frame = NULL;
+ HIDDEN->enable_mga_crtc2 = 0;
+ HIDDEN->mga_crtc2_stretch_overscan = 1;
+
+ ret = DirectFBInit (NULL, NULL);
+ if (ret)
+ {
+ SetDirectFBerror ("DirectFBInit", ret);
+ goto error;
+ }
+
+ ret = DirectFBCreate (&dfb);
+ if (ret)
+ {
+ SetDirectFBerror ("DirectFBCreate", ret);
+ goto error;
+ }
+
+ ret = dfb->GetDisplayLayer (dfb, DLID_PRIMARY, &layer);
+ if (ret)
+ {
+ SetDirectFBerror ("dfb->GetDisplayLayer", ret);
+ goto error;
+ }
+
+ ret = dfb->CreateInputEventBuffer (dfb, DICAPS_ALL, DFB_FALSE, &events);
+ if (ret)
+ {
+ SetDirectFBerror ("dfb->CreateEventBuffer", ret);
+ goto error;
+ }
+
+ layer->EnableCursor (layer, 1);
+
+ /* Query layer configuration to determine the current mode and pixelformat */
+ layer->GetConfiguration (layer, &dlc);
+
+ /* If current format is not supported use LUT8 as the default */
+ if (DFBToSDLPixelFormat (dlc.pixelformat, vformat))
+ DFBToSDLPixelFormat (DSPF_LUT8, vformat);
+
+ /* Enumerate the available fullscreen modes */
+ ret = dfb->EnumVideoModes (dfb, EnumModesCallback, this);
+ if (ret)
+ {
+ SetDirectFBerror ("dfb->EnumVideoModes", ret);
+ goto error;
+ }
+
+ HIDDEN->modelist = SDL_calloc (HIDDEN->nummodes + 1, sizeof(SDL_Rect *));
+ if (!HIDDEN->modelist)
+ {
+ SDL_OutOfMemory();
+ goto error;
+ }
+
+ for (i = 0, rect = enumlist; rect; ++i, rect = rect->next )
+ {
+ HIDDEN->modelist[i] = &rect->r;
+ }
+
+ HIDDEN->modelist[i] = NULL;
+
+
+ /* Query card capabilities to get the video memory size */
+#if (DIRECTFB_MAJOR_VERSION == 0) && (DIRECTFB_MINOR_VERSION == 9) && (DIRECTFB_MICRO_VERSION < 23)
+ dfb->GetCardCapabilities (dfb, &caps);
+#else
+ dfb->GetDeviceDescription (dfb, &caps);
+#endif
+
+ this->info.wm_available = 1;
+ this->info.hw_available = 1;
+ this->info.blit_hw = 1;
+ this->info.blit_hw_CC = 1;
+ this->info.blit_hw_A = 1;
+ this->info.blit_fill = 1;
+ this->info.video_mem = caps.video_memory / 1024;
+ this->info.current_w = dlc.width;
+ this->info.current_h = dlc.height;
+
+ HIDDEN->initialized = 1;
+ HIDDEN->dfb = dfb;
+ HIDDEN->layer = layer;
+ HIDDEN->eventbuffer = events;
+
+ if (SDL_getenv("SDL_DIRECTFB_MGA_CRTC2") != NULL)
+ HIDDEN->enable_mga_crtc2 = 1;
+
+ if (HIDDEN->enable_mga_crtc2)
+ {
+ DFBDisplayLayerConfig dlc;
+ DFBDisplayLayerConfigFlags failed;
+
+ ret = dfb->GetDisplayLayer (dfb, 2, &HIDDEN->c2layer);
+ if (ret)
+ {
+ SetDirectFBerror ("dfb->GetDisplayLayer(CRTC2)", ret);
+ goto error;
+ }
+
+ ret = HIDDEN->layer->SetCooperativeLevel(HIDDEN->layer, DLSCL_EXCLUSIVE);
+ if (ret)
+ {
+ SetDirectFBerror ("layer->SetCooperativeLevel(CRTC2, EXCLUSIVE)", ret);
+ goto error;
+ }
+
+ ret = HIDDEN->c2layer->SetCooperativeLevel(HIDDEN->c2layer, DLSCL_EXCLUSIVE);
+ if (ret)
+ {
+ SetDirectFBerror ("c2layer->SetCooperativeLevel(CRTC2, EXCLUSIVE)", ret);
+ goto error;
+ }
+
+ HIDDEN->c2layer->SetOpacity(HIDDEN->c2layer, 0x0);
+
+ /* Init the surface here as it got a fixed size */
+ dlc.flags = DLCONF_PIXELFORMAT | DLCONF_BUFFERMODE;
+ dlc.buffermode = DLBM_BACKVIDEO;
+ dlc.pixelformat = DSPF_RGB32;
+
+ ret = HIDDEN->c2layer->TestConfiguration( HIDDEN->c2layer, &dlc, &failed );
+ if (ret)
+ {
+ SetDirectFBerror ("c2layer->TestConfiguration", ret);
+ goto error;
+ }
+
+ ret = HIDDEN->c2layer->SetConfiguration( HIDDEN->c2layer, &dlc );
+ if (ret)
+ {
+ SetDirectFBerror ("c2layer->SetConfiguration", ret);
+ goto error;
+ }
+
+ ret = HIDDEN->c2layer->GetSurface( HIDDEN->c2layer, &HIDDEN->c2frame );
+ if (ret)
+ {
+ SetDirectFBerror ("c2layer->GetSurface", ret);
+ goto error;
+ }
+
+ HIDDEN->c2framesize.x = 0;
+ HIDDEN->c2framesize.y = 0;
+ HIDDEN->c2frame->GetSize( HIDDEN->c2frame, &HIDDEN->c2framesize.w, &HIDDEN->c2framesize.h);
+
+ HIDDEN->c2frame->SetBlittingFlags( HIDDEN->c2frame, DSBLIT_NOFX );
+ HIDDEN->c2frame->SetColor( HIDDEN->c2frame, 0, 0, 0, 0xff );
+
+ /* Clear CRTC2 */
+ HIDDEN->c2frame->Clear(HIDDEN->c2frame, 0, 0, 0, 0xff );
+ HIDDEN->c2frame->Flip(HIDDEN->c2frame, NULL, 0 );
+ HIDDEN->c2frame->Clear(HIDDEN->c2frame, 0, 0, 0, 0xff );
+ HIDDEN->c2frame->Flip(HIDDEN->c2frame, NULL, 0 );
+ HIDDEN->c2frame->Clear(HIDDEN->c2frame, 0, 0, 0, 0xff );
+
+ HIDDEN->c2layer->SetOpacity(HIDDEN->c2layer, 0xFF );
+
+ /* Check if overscan is possibly set */
+ if (SDL_getenv("SDL_DIRECTFB_MGA_OVERSCAN") != NULL)
+ {
+ float overscan = 0;
+ if (SDL_sscanf(SDL_getenv("SDL_DIRECTFB_MGA_OVERSCAN"), "%f", &overscan) == 1)
+ if (overscan > 0 && overscan < 2)
+ HIDDEN->mga_crtc2_stretch_overscan = overscan;
+ }
+
+ #ifdef DIRECTFB_CRTC2_DEBUG
+ printf("CRTC2 overscan: %f\n", HIDDEN->mga_crtc2_stretch_overscan);
+ #endif
+ }
+
+ return 0;
+
+ error:
+ if (events)
+ events->Release (events);
+
+ if (HIDDEN->c2frame)
+ HIDDEN->c2frame->Release (HIDDEN->c2frame);
+
+ if (HIDDEN->c2layer)
+ HIDDEN->c2layer->Release (HIDDEN->c2layer);
+
+ if (layer)
+ layer->Release (layer);
+
+ if (dfb)
+ dfb->Release (dfb);
+
+ return -1;
+}
+
+static SDL_Rect **DirectFB_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags)
+{
+ if (flags & SDL_FULLSCREEN)
+ return HIDDEN->modelist;
+ else
+ if (SDLToDFBPixelFormat (format) != DSPF_UNKNOWN)
+ return (SDL_Rect**) -1;
+
+ return NULL;
+}
+
+static SDL_Surface *DirectFB_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags)
+{
+ DFBResult ret;
+ DFBSurfaceDescription dsc;
+ DFBSurfacePixelFormat pixelformat;
+ IDirectFBSurface *surface;
+
+ fprintf (stderr, "SDL DirectFB_SetVideoMode: %dx%d@%d, flags: 0x%08x\n",
+ width, height, bpp, flags);
+
+ flags |= SDL_FULLSCREEN;
+
+ /* Release previous primary surface */
+ if (current->hwdata && current->hwdata->surface)
+ {
+ current->hwdata->surface->Release (current->hwdata->surface);
+ current->hwdata->surface = NULL;
+
+ /* And its palette if present */
+ if (current->hwdata->palette)
+ {
+ current->hwdata->palette->Release (current->hwdata->palette);
+ current->hwdata->palette = NULL;
+ }
+ }
+ else if (!current->hwdata)
+ {
+ /* Allocate the hardware acceleration data */
+ current->hwdata = (struct private_hwdata *) SDL_calloc (1, sizeof(*current->hwdata));
+ if (!current->hwdata)
+ {
+ SDL_OutOfMemory();
+ return NULL;
+ }
+ }
+
+ /* Set cooperative level depending on flag SDL_FULLSCREEN */
+ if (flags & SDL_FULLSCREEN)
+ {
+ ret = HIDDEN->dfb->SetCooperativeLevel (HIDDEN->dfb, DFSCL_FULLSCREEN);
+ if (ret && !HIDDEN->enable_mga_crtc2)
+ {
+ DirectFBError ("dfb->SetCooperativeLevel", ret);
+ flags &= ~SDL_FULLSCREEN;
+ }
+ }
+ else
+ HIDDEN->dfb->SetCooperativeLevel (HIDDEN->dfb, DFSCL_NORMAL);
+
+ /* Set video mode */
+ ret = HIDDEN->dfb->SetVideoMode (HIDDEN->dfb, width, height, bpp);
+ if (ret)
+ {
+ if (flags & SDL_FULLSCREEN)
+ {
+ flags &= ~SDL_FULLSCREEN;
+ HIDDEN->dfb->SetCooperativeLevel (HIDDEN->dfb, DFSCL_NORMAL);
+ ret = HIDDEN->dfb->SetVideoMode (HIDDEN->dfb, width, height, bpp);
+ }
+
+ if (ret)
+ {
+ SetDirectFBerror ("dfb->SetVideoMode", ret);
+ return NULL;
+ }
+ }
+
+ /* Create primary surface */
+ dsc.flags = DSDESC_CAPS | DSDESC_PIXELFORMAT;
+ dsc.caps = DSCAPS_PRIMARY | ((flags & SDL_DOUBLEBUF) ? DSCAPS_FLIPPING : 0);
+ dsc.pixelformat = GetFormatForBpp (bpp, HIDDEN->layer);
+
+ ret = HIDDEN->dfb->CreateSurface (HIDDEN->dfb, &dsc, &surface);
+ if (ret && (flags & SDL_DOUBLEBUF))
+ {
+ /* Try without double buffering */
+ dsc.caps &= ~DSCAPS_FLIPPING;
+ ret = HIDDEN->dfb->CreateSurface (HIDDEN->dfb, &dsc, &surface);
+ }
+ if (ret)
+ {
+ SetDirectFBerror ("dfb->CreateSurface", ret);
+ return NULL;
+ }
+
+ current->w = width;
+ current->h = height;
+ current->flags = SDL_HWSURFACE | SDL_PREALLOC;
+
+ if (flags & SDL_FULLSCREEN)
+ {
+ current->flags |= SDL_FULLSCREEN;
+ this->UpdateRects = DirectFB_DirectUpdate;
+ }
+ else
+ this->UpdateRects = DirectFB_WindowedUpdate;
+
+ if (dsc.caps & DSCAPS_FLIPPING)
+ current->flags |= SDL_DOUBLEBUF;
+
+ surface->GetPixelFormat (surface, &pixelformat);
+
+ DFBToSDLPixelFormat (pixelformat, current->format);
+
+ /* Get the surface palette (if supported) */
+ if (DFB_PIXELFORMAT_IS_INDEXED( pixelformat ))
+ {
+ surface->GetPalette (surface, &current->hwdata->palette);
+
+ current->flags |= SDL_HWPALETTE;
+ }
+
+ current->hwdata->surface = surface;
+
+ /* MGA CRTC2 stuff */
+ if (HIDDEN->enable_mga_crtc2)
+ {
+ /* no stretching if c2ssize == c2framesize */
+ HIDDEN->c2ssize.x = 0, HIDDEN->c2ssize.y = 0;
+ HIDDEN->c2ssize.w = width;
+ HIDDEN->c2ssize.h = height;
+
+ HIDDEN->c2dsize.x = 0, HIDDEN->c2dsize.y = 0;
+ HIDDEN->c2dsize.w = width;
+ HIDDEN->c2dsize.h = height;
+
+ HIDDEN->mga_crtc2_stretch = 0;
+
+ if (SDL_getenv("SDL_DIRECTFB_MGA_STRETCH") != NULL)
+ {
+ /* Normally assume a picture aspect ratio of 4:3 */
+ int zoom_aspect_x = 4, zoom_aspect_y = 3, i, j;
+
+ for (i = 1; i < 20; i++)
+ {
+ for (j = 1; j < 10; j++)
+ {
+ if ((float)width/(float)i*(float)j == height)
+ {
+ zoom_aspect_x = i;
+ zoom_aspect_y = j;
+
+ /* break the loop */
+ i = 21;
+ break;
+ }
+ }
+ }
+
+ #ifdef DIRECTFB_CRTC2_DEBUG
+ printf("Source resolution: X: %d, Y: %d, Aspect ratio: %d:%d\n", width, height, zoom_aspect_x, zoom_aspect_y);
+ printf("CRTC2 resolution: X: %d, Y: %d\n", HIDDEN->c2framesize.w, HIDDEN->c2framesize.h);
+ #endif
+
+ /* don't stretch only slightly smaller/larger images */
+ if ((float)width < (float)HIDDEN->c2framesize.w*0.95 || (float)height < (float)HIDDEN->c2framesize.h*0.95)
+ {
+ while ((float)HIDDEN->c2dsize.w < (float)HIDDEN->c2framesize.w*HIDDEN->mga_crtc2_stretch_overscan && (float)HIDDEN->c2dsize.h < (float)HIDDEN->c2framesize.h*HIDDEN->mga_crtc2_stretch_overscan)
+ {
+ HIDDEN->c2dsize.w+=zoom_aspect_x;
+ HIDDEN->c2dsize.h+=zoom_aspect_y;
+ }
+
+ /* one step down */
+ HIDDEN->c2dsize.w-=zoom_aspect_x;
+ HIDDEN->c2dsize.h-=zoom_aspect_y;
+
+ #ifdef DIRECTFB_CRTC2_DEBUG
+ printf("Stretched resolution: X: %d, Y: %d\n", HIDDEN->c2dsize.w, HIDDEN->c2dsize.h);
+ #endif
+
+ HIDDEN->mga_crtc2_stretch = 1;
+ }
+ else if ((float)width > (float)HIDDEN->c2framesize.w*0.95 || (float)height > (float)HIDDEN->c2framesize.h*0.95)
+ {
+ while ((float)HIDDEN->c2dsize.w > (float)HIDDEN->c2framesize.w*HIDDEN->mga_crtc2_stretch_overscan || (float)HIDDEN->c2dsize.h > (float)HIDDEN->c2framesize.h*HIDDEN->mga_crtc2_stretch_overscan)
+ {
+ HIDDEN->c2dsize.w-=zoom_aspect_x;
+ HIDDEN->c2dsize.h-=zoom_aspect_y;
+ }
+
+ #ifdef DIRECTFB_CRTC2_DEBUG
+ printf("Down-Stretched resolution: X: %d, Y: %d\n", HIDDEN->c2dsize.w, HIDDEN->c2dsize.h);
+ #endif
+
+ HIDDEN->mga_crtc2_stretch = 1;
+ } else {
+ #ifdef DIRECTFB_CRTC2_DEBUG
+ printf("Not stretching image\n");
+ #endif
+ }
+
+ /* Panning */
+ if (HIDDEN->c2framesize.w > HIDDEN->c2dsize.w)
+ HIDDEN->c2dsize.x = (HIDDEN->c2framesize.w - HIDDEN->c2dsize.w) / 2;
+ else
+ HIDDEN->c2dsize.x = (HIDDEN->c2dsize.w - HIDDEN->c2framesize.w) / 2;
+
+ if (HIDDEN->c2framesize.h > HIDDEN->c2dsize.h)
+ HIDDEN->c2dsize.y = (HIDDEN->c2framesize.h - HIDDEN->c2dsize.h) / 2;
+ else
+ HIDDEN->c2dsize.y = (HIDDEN->c2dsize.h - HIDDEN->c2framesize.h) / 2;
+
+ #ifdef DIRECTFB_CRTC2_DEBUG
+ printf("CRTC2 position X: %d, Y: %d\n", HIDDEN->c2dsize.x, HIDDEN->c2dsize.y);
+ #endif
+ }
+ }
+
+ return current;
+}
+
+static int DirectFB_AllocHWSurface(_THIS, SDL_Surface *surface)
+{
+ DFBResult ret;
+ DFBSurfaceDescription dsc;
+
+ /* fprintf(stderr, "SDL: DirectFB_AllocHWSurface (%dx%d@%d, flags: 0x%08x)\n",
+ surface->w, surface->h, surface->format->BitsPerPixel, surface->flags);*/
+
+ if (surface->w < 8 || surface->h < 8)
+ return -1;
+
+ /* fill surface description */
+ dsc.flags = DSDESC_WIDTH | DSDESC_HEIGHT | DSDESC_PIXELFORMAT | DSDESC_CAPS;
+ dsc.width = surface->w;
+ dsc.height = surface->h;
+ dsc.caps = (surface->flags & SDL_DOUBLEBUF) ? DSCAPS_FLIPPING : 0;
+
+ /* find the right pixelformat */
+ dsc.pixelformat = SDLToDFBPixelFormat (surface->format);
+ if (dsc.pixelformat == DSPF_UNKNOWN)
+ return -1;
+
+ /* Allocate the hardware acceleration data */
+ surface->hwdata = (struct private_hwdata *) SDL_calloc (1, sizeof(*surface->hwdata));
+ if (surface->hwdata == NULL)
+ {
+ SDL_OutOfMemory();
+ return -1;
+ }
+
+ /* Create the surface */
+ ret = HIDDEN->dfb->CreateSurface (HIDDEN->dfb, &dsc, &surface->hwdata->surface);
+ if (ret)
+ {
+ SetDirectFBerror ("dfb->CreateSurface", ret);
+ free (surface->hwdata);
+ surface->hwdata = NULL;
+ return -1;
+ }
+
+ surface->flags |= SDL_HWSURFACE | SDL_PREALLOC;
+
+ return 0;
+}
+
+static void DirectFB_FreeHWSurface(_THIS, SDL_Surface *surface)
+{
+ if (surface->hwdata && HIDDEN->initialized)
+ {
+ surface->hwdata->surface->Release (surface->hwdata->surface);
+ free (surface->hwdata);
+ surface->hwdata = NULL;
+ }
+}
+
+static int DirectFB_CheckHWBlit(_THIS, SDL_Surface *src, SDL_Surface *dst)
+{
+ /* fprintf(stderr, "SDL: DirectFB_CheckHWBlit (src->hwdata: %p, dst->hwdata: %p)\n",
+ src->hwdata, dst->hwdata);*/
+
+ if (!src->hwdata || !dst->hwdata)
+ return 0;
+
+ src->flags |= SDL_HWACCEL;
+ src->map->hw_blit = DirectFB_HWAccelBlit;
+
+ return 1;
+}
+
+static int DirectFB_HWAccelBlit(SDL_Surface *src, SDL_Rect *srcrect,
+ SDL_Surface *dst, SDL_Rect *dstrect)
+{
+ DFBSurfaceBlittingFlags flags = DSBLIT_NOFX;
+
+ DFBRectangle sr = { srcrect->x, srcrect->y, srcrect->w, srcrect->h };
+ DFBRectangle dr = { dstrect->x, dstrect->y, dstrect->w, dstrect->h };
+
+ IDirectFBSurface *surface = dst->hwdata->surface;
+
+ if (src->flags & SDL_SRCCOLORKEY)
+ {
+ flags |= DSBLIT_SRC_COLORKEY;
+ DirectFB_SetHWColorKey (NULL, src, src->format->colorkey);
+ }
+
+ if (src->flags & SDL_SRCALPHA)
+ {
+ flags |= DSBLIT_BLEND_COLORALPHA;
+ surface->SetColor (surface, 0xff, 0xff, 0xff, src->format->alpha);
+ }
+
+ surface->SetBlittingFlags (surface, flags);
+
+ if (sr.w == dr.w && sr.h == dr.h)
+ surface->Blit (surface, src->hwdata->surface, &sr, dr.x, dr.y);
+ else
+ surface->StretchBlit (surface, src->hwdata->surface, &sr, &dr);
+
+ return 0;
+}
+
+static int DirectFB_FillHWRect(_THIS, SDL_Surface *dst, SDL_Rect *dstrect, Uint32 color)
+{
+ SDL_PixelFormat *fmt = dst->format;
+ IDirectFBSurface *surface = dst->hwdata->surface;
+
+ /* ugly */
+ surface->SetColor (surface,
+ (color & fmt->Rmask) >> (fmt->Rshift - fmt->Rloss),
+ (color & fmt->Gmask) >> (fmt->Gshift - fmt->Gloss),
+ (color & fmt->Bmask) << (fmt->Bloss - fmt->Bshift), 0xFF);
+ surface->FillRectangle (surface, dstrect->x, dstrect->y, dstrect->w, dstrect->h);
+
+ return 0;
+}
+
+static int DirectFB_SetHWColorKey(_THIS, SDL_Surface *src, Uint32 key)
+{
+ SDL_PixelFormat *fmt = src->format;
+ IDirectFBSurface *surface = src->hwdata->surface;
+
+ if (fmt->BitsPerPixel == 8)
+ surface->SetSrcColorKeyIndex (surface, key);
+ else
+ /* ugly */
+ surface->SetSrcColorKey (surface,
+ (key & fmt->Rmask) >> (fmt->Rshift - fmt->Rloss),
+ (key & fmt->Gmask) >> (fmt->Gshift - fmt->Gloss),
+ (key & fmt->Bmask) << (fmt->Bloss - fmt->Bshift));
+
+ return 0;
+}
+
+static int DirectFB_SetHWAlpha(_THIS, SDL_Surface *surface, Uint8 alpha)
+{
+ return 0;
+}
+
+static int DirectFB_FlipHWSurface(_THIS, SDL_Surface *surface)
+{
+ if (HIDDEN->enable_mga_crtc2)
+ {
+ int rtn = surface->hwdata->surface->Flip (surface->hwdata->surface, NULL, 0);
+ if (HIDDEN->mga_crtc2_stretch)
+ HIDDEN->c2frame->StretchBlit(HIDDEN->c2frame, surface->hwdata->surface, &HIDDEN->c2ssize, &HIDDEN->c2dsize);
+ else
+ HIDDEN->c2frame->Blit(HIDDEN->c2frame, surface->hwdata->surface, NULL, HIDDEN->c2dsize.x, HIDDEN->c2dsize.y);
+
+ HIDDEN->c2frame->Flip(HIDDEN->c2frame, NULL, DSFLIP_WAITFORSYNC);
+ return rtn;
+ }
+ else
+ return surface->hwdata->surface->Flip (surface->hwdata->surface, NULL, DSFLIP_WAITFORSYNC);
+}
+
+static int DirectFB_LockHWSurface(_THIS, SDL_Surface *surface)
+{
+ DFBResult ret;
+ void *data;
+ int pitch;
+
+ ret = surface->hwdata->surface->Lock (surface->hwdata->surface,
+ DSLF_WRITE, &data, &pitch);
+ if (ret)
+ {
+ SetDirectFBerror ("surface->Lock", ret);
+ return -1;
+ }
+
+ surface->pixels = data;
+ surface->pitch = pitch;
+
+ return 0;
+}
+
+static void DirectFB_UnlockHWSurface(_THIS, SDL_Surface *surface)
+{
+ surface->hwdata->surface->Unlock (surface->hwdata->surface);
+ surface->pixels = NULL;
+}
+
+static void DirectFB_DirectUpdate(_THIS, int numrects, SDL_Rect *rects)
+{
+ if (HIDDEN->enable_mga_crtc2)
+ {
+ if (HIDDEN->mga_crtc2_stretch)
+ HIDDEN->c2frame->StretchBlit(HIDDEN->c2frame, this->screen->hwdata->surface, &HIDDEN->c2ssize, &HIDDEN->c2dsize);
+ else
+ HIDDEN->c2frame->Blit(HIDDEN->c2frame, this->screen->hwdata->surface, NULL, HIDDEN->c2dsize.x, HIDDEN->c2dsize.y);
+
+ HIDDEN->c2frame->Flip(HIDDEN->c2frame, NULL, DSFLIP_WAITFORSYNC);
+ }
+}
+
+static void DirectFB_WindowedUpdate(_THIS, int numrects, SDL_Rect *rects)
+{
+ DFBRegion region;
+ int i;
+ int region_valid = 0;
+ IDirectFBSurface *surface = this->screen->hwdata->surface;
+
+ for (i=0; i<numrects; ++i)
+ {
+ int x2, y2;
+
+ if ( ! rects[i].w ) /* Clipped? */
+ continue;
+
+ x2 = rects[i].x + rects[i].w - 1;
+ y2 = rects[i].y + rects[i].h - 1;
+
+ if (region_valid)
+ {
+ if (rects[i].x < region.x1)
+ region.x1 = rects[i].x;
+
+ if (rects[i].y < region.y1)
+ region.y1 = rects[i].y;
+
+ if (x2 > region.x2)
+ region.x2 = x2;
+
+ if (y2 > region.y2)
+ region.y2 = y2;
+ }
+ else
+ {
+ region.x1 = rects[i].x;
+ region.y1 = rects[i].y;
+ region.x2 = x2;
+ region.y2 = y2;
+
+ region_valid = 1;
+ }
+ }
+
+ if (region_valid)
+ {
+ if (HIDDEN->enable_mga_crtc2)
+ {
+ if (HIDDEN->mga_crtc2_stretch)
+ HIDDEN->c2frame->StretchBlit(HIDDEN->c2frame, surface, &HIDDEN->c2ssize, &HIDDEN->c2dsize);
+ else
+ HIDDEN->c2frame->Blit(HIDDEN->c2frame, surface, NULL, HIDDEN->c2dsize.x, HIDDEN->c2dsize.y);
+
+ HIDDEN->c2frame->Flip(HIDDEN->c2frame, NULL, DSFLIP_WAITFORSYNC);
+ }
+ else
+ surface->Flip (surface, &region, DSFLIP_WAITFORSYNC);
+ }
+}
+
+int DirectFB_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors)
+{
+ IDirectFBPalette *palette = this->screen->hwdata->palette;
+
+ if (!palette)
+ return 0;
+
+ if (firstcolor > 255)
+ return 0;
+
+ if (firstcolor + ncolors > 256)
+ ncolors = 256 - firstcolor;
+
+ if (ncolors > 0)
+ {
+ int i;
+ DFBColor entries[ncolors];
+
+ for (i=0; i<ncolors; i++)
+ {
+ entries[i].a = 0xff;
+ entries[i].r = colors[i].r;
+ entries[i].g = colors[i].g;
+ entries[i].b = colors[i].b;
+ }
+
+ palette->SetEntries (palette, entries, ncolors, firstcolor);
+ }
+
+ return 1;
+}
+
+void DirectFB_VideoQuit(_THIS)
+{
+ struct DirectFBEnumRect *rect = enumlist;
+
+ if (this->screen && this->screen->hwdata)
+ {
+ IDirectFBSurface *surface = this->screen->hwdata->surface;
+ IDirectFBPalette *palette = this->screen->hwdata->palette;
+
+ if (palette)
+ palette->Release (palette);
+
+ if (surface)
+ surface->Release (surface);
+
+ this->screen->hwdata->surface = NULL;
+ this->screen->hwdata->palette = NULL;
+ }
+
+ if (HIDDEN->c2frame)
+ {
+ HIDDEN->c2frame->Release (HIDDEN->c2frame);
+ HIDDEN->c2frame = NULL;
+ }
+
+ if (HIDDEN->eventbuffer)
+ {
+ HIDDEN->eventbuffer->Release (HIDDEN->eventbuffer);
+ HIDDEN->eventbuffer = NULL;
+ }
+
+ if (HIDDEN->c2layer)
+ {
+ HIDDEN->c2layer->Release (HIDDEN->c2layer);
+ HIDDEN->c2layer = NULL;
+ }
+
+ if (HIDDEN->layer)
+ {
+ HIDDEN->layer->Release (HIDDEN->layer);
+ HIDDEN->layer = NULL;
+ }
+
+ if (HIDDEN->dfb)
+ {
+ HIDDEN->dfb->Release (HIDDEN->dfb);
+ HIDDEN->dfb = NULL;
+ }
+
+ /* Free video mode list */
+ if (HIDDEN->modelist)
+ {
+ free (HIDDEN->modelist);
+ HIDDEN->modelist = NULL;
+ }
+
+ /* Free mode enumeration list */
+ while (rect)
+ {
+ struct DirectFBEnumRect *next = rect->next;
+ free (rect);
+ rect = next;
+ }
+ enumlist = NULL;
+
+ HIDDEN->initialized = 0;
+}
+
+
+int DirectFB_ShowWMCursor(_THIS, WMcursor *cursor)
+{
+ /* We can only hide or show the default cursor */
+ if ( cursor == NULL )
+ {
+ HIDDEN->layer->SetCursorOpacity(HIDDEN->layer, 0x00);
+ }
+ else
+ {
+ HIDDEN->layer->SetCursorOpacity(HIDDEN->layer, 0xFF);
+ }
+ return 1;
+}
+
+void DirectFB_FinalQuit(void)
+{
+}