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SDL_DirectFB_modes.c
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/*
SDL - Simple DirectMedia Layer
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Copyright (C) 1997-2009 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
*/
#include "SDL_config.h"
#include "SDL_DirectFB_video.h"
#define DFB_MAX_MODES 200
struct scn_callback_t
{
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 int
DFBToSDLPixelFormat(DFBSurfacePixelFormat pixelformat, Uint32 * fmt)
{
switch (pixelformat) {
case DSPF_ALUT44:
*fmt = SDL_PIXELFORMAT_INDEX4LSB;
break;
case DSPF_LUT8:
*fmt = SDL_PIXELFORMAT_INDEX8;
break;
case DSPF_RGB332:
*fmt = SDL_PIXELFORMAT_RGB332;
break;
case DSPF_ARGB4444:
*fmt = SDL_PIXELFORMAT_ARGB4444;
break;
case SDL_PIXELFORMAT_ARGB1555:
*fmt = SDL_PIXELFORMAT_ARGB1555;
break;
case DSPF_RGB16:
*fmt = SDL_PIXELFORMAT_RGB565;
break;
case DSPF_RGB24:
*fmt = SDL_PIXELFORMAT_RGB24;
break;
case DSPF_RGB32:
*fmt = SDL_PIXELFORMAT_RGB888;
break;
case DSPF_ARGB:
*fmt = SDL_PIXELFORMAT_ARGB8888;
break;
case DSPF_YV12:
*fmt = SDL_PIXELFORMAT_YV12;
break; /* Planar mode: Y + V + U (3 planes) */
case DSPF_I420:
*fmt = SDL_PIXELFORMAT_IYUV;
break; /* Planar mode: Y + U + V (3 planes) */
case DSPF_YUY2:
*fmt = SDL_PIXELFORMAT_YUY2;
break; /* Packed mode: Y0+U0+Y1+V0 (1 plane) */
case DSPF_UYVY:
*fmt = SDL_PIXELFORMAT_UYVY;
break; /* Packed mode: U0+Y0+V0+Y1 (1 plane) */
default:
return -1;
}
return 0;
}
static DFBSurfacePixelFormat
SDLToDFBPixelFormat(Uint32 format)
{
switch (format) {
case SDL_PIXELFORMAT_INDEX4LSB:
return DSPF_ALUT44;
case SDL_PIXELFORMAT_INDEX8:
return DSPF_LUT8;
case SDL_PIXELFORMAT_RGB332:
return DSPF_RGB332;
case SDL_PIXELFORMAT_RGB555:
return DSPF_ARGB1555;
case SDL_PIXELFORMAT_ARGB4444:
return DSPF_ARGB4444;
case SDL_PIXELFORMAT_ARGB1555:
return DSPF_ARGB1555;
case SDL_PIXELFORMAT_RGB565:
return DSPF_RGB16;
case SDL_PIXELFORMAT_RGB24:
return DSPF_RGB24;
case SDL_PIXELFORMAT_RGB888:
return DSPF_RGB32;
case SDL_PIXELFORMAT_ARGB8888:
return DSPF_ARGB;
case SDL_PIXELFORMAT_YV12:
return DSPF_YV12; /* Planar mode: Y + V + U (3 planes) */
case SDL_PIXELFORMAT_IYUV:
return DSPF_I420; /* Planar mode: Y + U + V (3 planes) */
case SDL_PIXELFORMAT_YUY2:
return DSPF_YUY2; /* Packed mode: Y0+U0+Y1+V0 (1 plane) */
case SDL_PIXELFORMAT_UYVY:
return DSPF_UYVY; /* Packed mode: U0+Y0+V0+Y1 (1 plane) */
case SDL_PIXELFORMAT_YVYU:
return DSPF_UNKNOWN; /* Packed mode: Y0+V0+Y1+U0 (1 plane) */
case SDL_PIXELFORMAT_INDEX1LSB:
return DSPF_UNKNOWN;
case SDL_PIXELFORMAT_INDEX1MSB:
return DSPF_UNKNOWN;
case SDL_PIXELFORMAT_INDEX4MSB:
return DSPF_UNKNOWN;
case SDL_PIXELFORMAT_RGB444:
return DSPF_UNKNOWN;
case SDL_PIXELFORMAT_BGR24:
return DSPF_UNKNOWN;
case SDL_PIXELFORMAT_BGR888:
return DSPF_UNKNOWN;
case SDL_PIXELFORMAT_RGBA8888:
return DSPF_UNKNOWN;
case SDL_PIXELFORMAT_ABGR8888:
return DSPF_UNKNOWN;
case SDL_PIXELFORMAT_BGRA8888:
return DSPF_UNKNOWN;
case SDL_PIXELFORMAT_ARGB2101010:
return DSPF_UNKNOWN;
default:
return DSPF_UNKNOWN;
}
}
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;
}
SDL_DFB_DEBUG("w %d h %d bpp %d\n", width, height, bpp);
return DFENUM_OK;
}
static DFBEnumerationResult
cbScreens(DFBScreenID screen_id, DFBScreenDescription desc,
void *callbackdata)
{
struct scn_callback_t *devdata = (struct scn_callback_t *) callbackdata;
devdata->screenid[devdata->numscreens++] = screen_id;
return DFENUM_OK;
}
DFBEnumerationResult
cbLayers(DFBDisplayLayerID layer_id, DFBDisplayLayerDescription desc,
void *callbackdata)
{
struct scn_callback_t *devdata = (struct scn_callback_t *) callbackdata;
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
CheckSetDisplayMode(_THIS, DFB_DisplayData * data, SDL_DisplayMode * mode)
{
SDL_DFB_DEVICEDATA(_this);
DFBDisplayLayerConfig config;
DFBDisplayLayerConfigFlags failed;
int ret;
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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;
config.pixelformat = SDLToDFBPixelFormat(mode->format);
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)
SDL_AddDisplayMode(_this->current_display, mode);
else
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SDL_DFB_DEBUG("Mode %d x %d not available: %x\n", mode->w,
mode->h, failed);
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return;
error:
return;
}
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;
struct scn_callback_t *screencbdata;
int tcw[DFB_MAX_SCREENS];
int tch[DFB_MAX_SCREENS];
int i;
DFBResult ret;
SDL_DFB_CALLOC(screencbdata, 1, sizeof(*screencbdata));
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, &cbScreens,
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, &cbLayers,
screencbdata));
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screen->GetSize(screen, &tcw[i], &tch[i]);
screen->Release(screen);
}
/* Query card capabilities */
devdata->dfb->GetDeviceDescription(devdata->dfb, &caps);
SDL_DFB_DEBUG("SDL directfb video driver - %s %s\n", __DATE__, __TIME__);
SDL_DFB_DEBUG("Using %s (%s) driver.\n", caps.name, caps.vendor);
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SDL_DFB_DEBUG("Found %d screens\n", screencbdata->numscreens);
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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;
ret = layer->SetConfiguration(layer, &dlc);
if (ret) {
/* try AiRGB if the previous failed */
dlc.pixelformat = DSPF_AiRGB;
ret = layer->SetConfiguration(layer, &dlc);
}
}
/* Query layer configuration to determine the current mode and pixelformat */
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dlc.flags = DLCONF_ALL;
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layer->GetConfiguration(layer, &dlc);
if (DFBToSDLPixelFormat(dlc.pixelformat, &mode.format) != 0) {
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;
SDL_DFB_CALLOC(dispdata, 1, sizeof(*dispdata));
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
DirectFB_GetDisplayModes(_THIS)
{
SDL_DFB_DEVICEDATA(_this);
DFB_DisplayData *dispdata =
(DFB_DisplayData *) SDL_CurrentDisplay.driverdata;
SDL_DisplayMode mode;
struct modes_callback_t data;
int i;
int ret;
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;
CheckSetDisplayMode(_this, dispdata, &mode);
mode.format = SDL_PIXELFORMAT_RGB888;
CheckSetDisplayMode(_this, dispdata, &mode);
mode.format = SDL_PIXELFORMAT_RGB24;
CheckSetDisplayMode(_this, dispdata, &mode);
mode.format = SDL_PIXELFORMAT_RGB565;
CheckSetDisplayMode(_this, dispdata, &mode);
mode.format = SDL_PIXELFORMAT_INDEX8;
CheckSetDisplayMode(_this, dispdata, &mode);
}
SDL_DFB_FREE(data.modelist);
return;
error:
SDL_DFB_FREE(data.modelist);
return;
}
int
DirectFB_SetDisplayMode(_THIS, SDL_DisplayMode * mode)
{
/*
* FIXME: video mode switch is currently broken for 1.2.0
*
*/
SDL_DFB_DEVICEDATA(_this);
DFB_DisplayData *data = (DFB_DisplayData *) SDL_CurrentDisplay.driverdata;
DFBDisplayLayerConfig config, rconfig;
DFBDisplayLayerConfigFlags fail = 0;
DFBResult ret;
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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;
config.pixelformat = SDLToDFBPixelFormat(mode->format);
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;
}
SDL_DFB_DEBUG("Trace\n");
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;
SDL_CurrentDisplay.current_mode = *mode;
return 0;
error:
return -1;
}
void
DirectFB_QuitModes(_THIS)
{
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//DFB_DeviceData *devdata = (DFB_DeviceData *) _this->driverdata;
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SDL_DisplayMode tmode;
DFBResult ret;
int i;
SDL_SelectVideoDisplay(0);
SDL_GetDesktopDisplayMode(&tmode);
tmode.format = SDL_PIXELFORMAT_UNKNOWN;
DirectFB_SetDisplayMode(_this, &tmode);
SDL_GetDesktopDisplayMode(&tmode);
DirectFB_SetDisplayMode(_this, &tmode);
for (i = 0; i < SDL_GetNumVideoDisplays(); i++) {
DFB_DisplayData *dispdata =
(DFB_DisplayData *) _this->displays[i].driverdata;
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: */