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SDL_DirectFB_modes.c
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/*
SDL - Simple DirectMedia Layer
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Copyright (C) 1997-2010 Sam Lantinga
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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
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SDL1.3 DirectFB driver by couriersud@arcor.de
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*/
#include "SDL_DirectFB_video.h"
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#include "SDL_DirectFB_modes.h"
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#define DFB_MAX_MODES 200
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struct screen_callback_t
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{
int numscreens;
DFBScreenID screenid[DFB_MAX_SCREENS];
DFBDisplayLayerID gralayer[DFB_MAX_SCREENS];
DFBDisplayLayerID vidlayer[DFB_MAX_SCREENS];
int aux; /* auxiliary integer for callbacks */
};
struct modes_callback_t
{
int nummodes;
SDL_DisplayMode *modelist;
};
static DFBEnumerationResult
EnumModesCallback(int width, int height, int bpp, void *data)
{
struct modes_callback_t *modedata = (struct modes_callback_t *) data;
SDL_DisplayMode mode;
mode.w = width;
mode.h = height;
mode.refresh_rate = 0;
mode.driverdata = NULL;
mode.format = SDL_PIXELFORMAT_UNKNOWN;
if (modedata->nummodes < DFB_MAX_MODES) {
modedata->modelist[modedata->nummodes++] = mode;
}
return DFENUM_OK;
}
static DFBEnumerationResult
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EnumScreensCallback(DFBScreenID screen_id, DFBScreenDescription desc,
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void *callbackdata)
{
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struct screen_callback_t *devdata = (struct screen_callback_t *) callbackdata;
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devdata->screenid[devdata->numscreens++] = screen_id;
return DFENUM_OK;
}
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static DFBEnumerationResult
EnumLayersCallback(DFBDisplayLayerID layer_id, DFBDisplayLayerDescription desc,
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void *callbackdata)
{
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struct screen_callback_t *devdata = (struct screen_callback_t *) callbackdata;
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if (desc.caps & DLCAPS_SURFACE) {
if ((desc.type & DLTF_GRAPHICS) && (desc.type & DLTF_VIDEO)) {
if (devdata->vidlayer[devdata->aux] == -1)
devdata->vidlayer[devdata->aux] = layer_id;
} else if (desc.type & DLTF_GRAPHICS) {
if (devdata->gralayer[devdata->aux] == -1)
devdata->gralayer[devdata->aux] = layer_id;
}
}
return DFENUM_OK;
}
static void
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CheckSetDisplayMode(_THIS, SDL_VideoDisplay * display, DFB_DisplayData * data, SDL_DisplayMode * mode)
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{
SDL_DFB_DEVICEDATA(_this);
DFBDisplayLayerConfig config;
DFBDisplayLayerConfigFlags failed;
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SDL_DFB_CHECKERR(data->layer->SetCooperativeLevel(data->layer,
DLSCL_ADMINISTRATIVE));
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config.width = mode->w;
config.height = mode->h;
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config.pixelformat = DirectFB_SDLToDFBPixelFormat(mode->format);
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config.flags = DLCONF_WIDTH | DLCONF_HEIGHT | DLCONF_PIXELFORMAT;
if (devdata->use_yuv_underlays) {
config.flags |= DLCONF_OPTIONS;
config.options = DLOP_ALPHACHANNEL;
}
failed = 0;
data->layer->TestConfiguration(data->layer, &config, &failed);
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SDL_DFB_CHECKERR(data->layer->SetCooperativeLevel(data->layer,
DLSCL_SHARED));
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if (failed == 0)
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SDL_AddDisplayMode(display, mode);
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SDL_DFB_LOG("Mode %d x %d Added\n", mode->w, mode->h);
}
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SDL_DFB_ERR("Mode %d x %d not available: %x\n", mode->w,
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mode->h, failed);
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return;
error:
return;
}
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void
DirectFB_SetContext(_THIS, SDL_Window *window)
{
#if (DFB_VERSION_ATLEAST(1,0,0))
/* FIXME: does not work on 1.0/1.2 with radeon driver
* the approach did work with the matrox driver
* This has simply no effect.
*/
SDL_VideoDisplay *display = window->display;
DFB_DisplayData *dispdata = (DFB_DisplayData *) display->driverdata;
/* FIXME: should we handle the error */
if (dispdata->vidIDinuse)
SDL_DFB_CHECK(dispdata->vidlayer->SwitchContext(dispdata->vidlayer,
DFB_TRUE));
#endif
}
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void
DirectFB_InitModes(_THIS)
{
SDL_DFB_DEVICEDATA(_this);
IDirectFBDisplayLayer *layer = NULL;
SDL_VideoDisplay display;
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DFB_DisplayData *dispdata = NULL;
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SDL_DisplayMode mode;
DFBGraphicsDeviceDescription caps;
DFBDisplayLayerConfig dlc;
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struct screen_callback_t *screencbdata;
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int tcw[DFB_MAX_SCREENS];
int tch[DFB_MAX_SCREENS];
int i;
DFBResult ret;
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SDL_DFB_ALLOC_CLEAR(screencbdata, sizeof(*screencbdata));
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screencbdata->numscreens = 0;
for (i = 0; i < DFB_MAX_SCREENS; i++) {
screencbdata->gralayer[i] = -1;
screencbdata->vidlayer[i] = -1;
}
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SDL_DFB_CHECKERR(devdata->dfb->EnumScreens(devdata->dfb, &EnumScreensCallback,
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screencbdata));
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for (i = 0; i < screencbdata->numscreens; i++) {
IDirectFBScreen *screen;
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SDL_DFB_CHECKERR(devdata->dfb->GetScreen(devdata->dfb,
screencbdata->screenid
[i], &screen));
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screencbdata->aux = i;
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SDL_DFB_CHECKERR(screen->EnumDisplayLayers(screen, &EnumLayersCallback,
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screencbdata));
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screen->GetSize(screen, &tcw[i], &tch[i]);
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screen->Release(screen);
}
/* Query card capabilities */
devdata->dfb->GetDeviceDescription(devdata->dfb, &caps);
for (i = 0; i < screencbdata->numscreens; i++) {
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SDL_DFB_CHECKERR(devdata->dfb->GetDisplayLayer(devdata->dfb,
screencbdata->gralayer
[i], &layer));
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SDL_DFB_CHECKERR(layer->SetCooperativeLevel(layer,
DLSCL_ADMINISTRATIVE));
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layer->EnableCursor(layer, 1);
SDL_DFB_CHECKERR(layer->SetCursorOpacity(layer, 0xC0));
if (devdata->use_yuv_underlays) {
dlc.flags = DLCONF_PIXELFORMAT | DLCONF_OPTIONS;
dlc.pixelformat = DSPF_ARGB;
dlc.options = DLOP_ALPHACHANNEL;
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ret = layer->SetConfiguration(layer, &dlc);
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if (ret != DFB_OK) {
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/* try AiRGB if the previous failed */
dlc.pixelformat = DSPF_AiRGB;
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SDL_DFB_CHECKERR(layer->SetConfiguration(layer, &dlc));
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}
}
/* Query layer configuration to determine the current mode and pixelformat */
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dlc.flags = DLCONF_ALL;
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SDL_DFB_CHECKERR(layer->GetConfiguration(layer, &dlc));
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mode.format = DirectFB_DFBToSDLPixelFormat(dlc.pixelformat);
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if (mode.format == SDL_PIXELFORMAT_UNKNOWN) {
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SDL_DFB_ERR("Unknown dfb pixelformat %x !\n", dlc.pixelformat);
goto error;
}
mode.w = dlc.width;
mode.h = dlc.height;
mode.refresh_rate = 0;
mode.driverdata = NULL;
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SDL_DFB_ALLOC_CLEAR(dispdata, sizeof(*dispdata));
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dispdata->layer = layer;
dispdata->pixelformat = dlc.pixelformat;
dispdata->cw = tcw[i];
dispdata->ch = tch[i];
/* YUV - Video layer */
dispdata->vidID = screencbdata->vidlayer[i];
dispdata->vidIDinuse = 0;
SDL_zero(display);
display.desktop_mode = mode;
display.current_mode = mode;
display.driverdata = dispdata;
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#if (DFB_VERSION_ATLEAST(1,2,0))
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dlc.flags =
DLCONF_WIDTH | DLCONF_HEIGHT | DLCONF_PIXELFORMAT |
DLCONF_OPTIONS;
ret = layer->SetConfiguration(layer, &dlc);
#endif
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SDL_DFB_CHECKERR(layer->SetCooperativeLevel(layer, DLSCL_SHARED));
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SDL_AddVideoDisplay(&display);
}
SDL_DFB_FREE(screencbdata);
return;
error:
/* FIXME: Cleanup not complete, Free existing displays */
SDL_DFB_FREE(dispdata);
SDL_DFB_RELEASE(layer);
return;
}
void
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DirectFB_GetDisplayModes(_THIS, SDL_VideoDisplay * display)
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{
SDL_DFB_DEVICEDATA(_this);
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DFB_DisplayData *dispdata = (DFB_DisplayData *) display->driverdata;
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SDL_DisplayMode mode;
struct modes_callback_t data;
int i;
data.nummodes = 0;
/* Enumerate the available fullscreen modes */
SDL_DFB_CALLOC(data.modelist, DFB_MAX_MODES, sizeof(SDL_DisplayMode));
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SDL_DFB_CHECKERR(devdata->dfb->EnumVideoModes(devdata->dfb,
EnumModesCallback, &data));
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for (i = 0; i < data.nummodes; ++i) {
mode = data.modelist[i];
mode.format = SDL_PIXELFORMAT_ARGB8888;
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CheckSetDisplayMode(_this, display, dispdata, &mode);
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mode.format = SDL_PIXELFORMAT_RGB888;
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CheckSetDisplayMode(_this, display, dispdata, &mode);
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mode.format = SDL_PIXELFORMAT_RGB24;
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CheckSetDisplayMode(_this, display, dispdata, &mode);
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mode.format = SDL_PIXELFORMAT_RGB565;
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CheckSetDisplayMode(_this, display, dispdata, &mode);
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mode.format = SDL_PIXELFORMAT_INDEX8;
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CheckSetDisplayMode(_this, display, dispdata, &mode);
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SDL_DFB_FREE(data.modelist);
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error:
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return;
}
int
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DirectFB_SetDisplayMode(_THIS, SDL_VideoDisplay * display, SDL_DisplayMode * mode)
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{
/*
* FIXME: video mode switch is currently broken for 1.2.0
*
*/
SDL_DFB_DEVICEDATA(_this);
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DFB_DisplayData *data = (DFB_DisplayData *) display->driverdata;
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DFBDisplayLayerConfig config, rconfig;
DFBDisplayLayerConfigFlags fail = 0;
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SDL_DFB_CHECKERR(data->layer->SetCooperativeLevel(data->layer,
DLSCL_ADMINISTRATIVE));
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SDL_DFB_CHECKERR(data->layer->GetConfiguration(data->layer, &config));
config.flags = DLCONF_WIDTH | DLCONF_HEIGHT;
if (mode->format != SDL_PIXELFORMAT_UNKNOWN) {
config.flags |= DLCONF_PIXELFORMAT;
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config.pixelformat = DirectFB_SDLToDFBPixelFormat(mode->format);
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data->pixelformat = config.pixelformat;
}
config.width = mode->w;
config.height = mode->h;
if (devdata->use_yuv_underlays) {
config.flags |= DLCONF_OPTIONS;
config.options = DLOP_ALPHACHANNEL;
}
data->layer->TestConfiguration(data->layer, &config, &fail);
if (fail &
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(DLCONF_WIDTH | DLCONF_HEIGHT | DLCONF_PIXELFORMAT |
DLCONF_OPTIONS)) {
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SDL_DFB_ERR("Error setting mode %dx%d-%x\n", mode->w, mode->h,
mode->format);
return -1;
}
config.flags &= ~fail;
SDL_DFB_CHECKERR(data->layer->SetConfiguration(data->layer, &config));
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#if (DFB_VERSION_ATLEAST(1,2,0))
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/* Need to call this twice ! */
SDL_DFB_CHECKERR(data->layer->SetConfiguration(data->layer, &config));
#endif
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/* Double check */
SDL_DFB_CHECKERR(data->layer->GetConfiguration(data->layer, &rconfig));
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SDL_DFB_CHECKERR(data->
layer->SetCooperativeLevel(data->layer, DLSCL_SHARED));
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if ((config.width != rconfig.width) || (config.height != rconfig.height)
|| ((mode->format != SDL_PIXELFORMAT_UNKNOWN)
&& (config.pixelformat != rconfig.pixelformat))) {
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SDL_DFB_ERR("Error setting mode %dx%d-%x\n", mode->w, mode->h,
mode->format);
return -1;
}
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data->pixelformat = rconfig.pixelformat;
data->cw = config.width;
data->ch = config.height;
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display->current_mode = *mode;
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return 0;
error:
return -1;
}
void
DirectFB_QuitModes(_THIS)
{
SDL_DisplayMode tmode;
int i;
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for (i = 0; i < _this->num_displays; ++i) {
SDL_VideoDisplay *display = &_this->displays[i];
DFB_DisplayData *dispdata = (DFB_DisplayData *) display->driverdata;
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SDL_GetDesktopDisplayModeForDisplay(display, &tmode);
tmode.format = SDL_PIXELFORMAT_UNKNOWN;
DirectFB_SetDisplayMode(_this, display, &tmode);
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SDL_GetDesktopDisplayModeForDisplay(display, &tmode);
DirectFB_SetDisplayMode(_this, display, &tmode);
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if (dispdata->layer) {
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SDL_DFB_CHECK(dispdata->
layer->SetCooperativeLevel(dispdata->layer,
DLSCL_ADMINISTRATIVE));
SDL_DFB_CHECK(dispdata->
layer->SetCursorOpacity(dispdata->layer, 0x00));
SDL_DFB_CHECK(dispdata->
layer->SetCooperativeLevel(dispdata->layer,
DLSCL_SHARED));
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}
SDL_DFB_RELEASE(dispdata->layer);
SDL_DFB_RELEASE(dispdata->vidlayer);
}
}
/* vi: set ts=4 sw=4 expandtab: */