SDL_Surface *VGL_SetVideoMode(_THIS, SDL_Surface *current,
int width, int height, int bpp, Uint32 flags)
{
int mode_found;
int i;
VGLMode **modes;
modes = VGLListModes(bpp, V_INFO_MM_DIRECT | V_INFO_MM_PACKED);
mode_found = 0;
for (i = 0; modes[i] != NULL; i++) {
if ((modes[i]->ModeInfo.Xsize == width) &&
(modes[i]->ModeInfo.Ysize == height) &&
((modes[i]->ModeInfo.Type == VIDBUF8) ||
(modes[i]->ModeInfo.Type == VIDBUF16) ||
(modes[i]->ModeInfo.Type == VIDBUF32))) {
mode_found = 1;
break;
}
}
if (mode_found == 0) {
SDL_SetError("No matching video mode found");
return NULL;
}
if (VGLCurMode != NULL)
VGLEnd();
if (VGLInit(modes[i]->ModeId) != 0) {
SDL_SetError("Unable to switch to requested mode");
return NULL;
}
VGLCurMode = SDL_realloc(VGLCurMode, sizeof(VGLMode));
VGLCurMode->ModeInfo = *VGLDisplay;
VGLCurMode->Depth = modes[i]->Depth;
VGLCurMode->ModeId = modes[i]->ModeId;
VGLCurMode->Rmask = modes[i]->Rmask;
VGLCurMode->Gmask = modes[i]->Gmask;
VGLCurMode->Bmask = modes[i]->Bmask;
if (VGLCurMode->ModeInfo.PixelBytes == 0)
(VGLCurMode->ModeInfo.PixelBytes = 1);
current->w = VGLCurMode->ModeInfo.Xsize;
current->h = VGLCurMode->ModeInfo.Ysize;
current->pixels = VGLCurMode->ModeInfo.Bitmap;
current->pitch = VGLCurMode->ModeInfo.Xsize *
VGLCurMode->ModeInfo.PixelBytes;
current->flags = (SDL_FULLSCREEN | SDL_HWSURFACE);
if (VGLCurMode->ModeInfo.Type == VIDBUF8)
current->flags |= SDL_HWPALETTE;
if (flags & SDL_DOUBLEBUF) {
if (VGLCurMode->ModeInfo.Xsize * 2 <=
VGLCurMode->ModeInfo.VYsize) {
current->flags |= SDL_DOUBLEBUF;
flip_page = 0;
flip_address[0] = (byte *)current->pixels;
flip_address[1] = (byte *)current->pixels +
current->h * current->pitch;
VGL_FlipHWSurface(this, current);
}
}
if (! SDL_ReallocFormat(current, modes[i]->Depth, VGLCurMode->Rmask,
VGLCurMode->Gmask, VGLCurMode->Bmask, 0)) {
return NULL;
}
VGL_UpdateVideoInfo(this);
this->UpdateRects = VGL_DirectUpdate;
return current;
}
SDL_Surface *VGL_SetVideoMode(_THIS, SDL_Surface *current,
int width, int height, int bpp, Uint32 flags)
{
int mode_found;
int i;
VGLMode **modes;
modes = VGLListModes(bpp, V_INFO_MM_DIRECT | V_INFO_MM_PACKED);
mode_found = 0;
for (i = 0; modes[i] != NULL; i++) {
if ((modes[i]->ModeInfo.Xsize == width) &&
(modes[i]->ModeInfo.Ysize == height) &&
((modes[i]->ModeInfo.Type == VIDBUF8) ||
(modes[i]->ModeInfo.Type == VIDBUF16) ||
(modes[i]->ModeInfo.Type == VIDBUF32))) {
mode_found = 1;
break;
}
}
if (mode_found == 0) {
SDL_SetError("No matching video mode found");
return NULL;
}
/* Shutdown previous videomode (if any) */
if (VGLCurMode != NULL)
VGLEnd();
/* Try to set the requested linear video mode */
if (VGLInit(modes[i]->ModeId) != 0) {
SDL_SetError("Unable to switch to requested mode");
return NULL;
}
VGLCurMode = SDL_realloc(VGLCurMode, sizeof(VGLMode));
VGLCurMode->ModeInfo = *VGLDisplay;
VGLCurMode->Depth = modes[i]->Depth;
VGLCurMode->ModeId = modes[i]->ModeId;
VGLCurMode->Rmask = modes[i]->Rmask;
VGLCurMode->Gmask = modes[i]->Gmask;
VGLCurMode->Bmask = modes[i]->Bmask;
/* Workaround a bug in libvgl */
if (VGLCurMode->ModeInfo.PixelBytes == 0)
(VGLCurMode->ModeInfo.PixelBytes = 1);
current->w = VGLCurMode->ModeInfo.Xsize;
current->h = VGLCurMode->ModeInfo.Ysize;
current->pixels = VGLCurMode->ModeInfo.Bitmap;
current->pitch = VGLCurMode->ModeInfo.Xsize *
VGLCurMode->ModeInfo.PixelBytes;
current->flags = (SDL_FULLSCREEN | SDL_HWSURFACE);
/* Check if we are in a pseudo-color mode */
if (VGLCurMode->ModeInfo.Type == VIDBUF8)
current->flags |= SDL_HWPALETTE;
/* Check if we can do doublebuffering */
if (flags & SDL_DOUBLEBUF) {
if (VGLCurMode->ModeInfo.Xsize * 2 <=
VGLCurMode->ModeInfo.VYsize) {
current->flags |= SDL_DOUBLEBUF;
flip_page = 0;
flip_address[0] = (byte *)current->pixels;
flip_address[1] = (byte *)current->pixels +
current->h * current->pitch;
VGL_FlipHWSurface(this, current);
}
}
if (! SDL_ReallocFormat(current, modes[i]->Depth, VGLCurMode->Rmask,
VGLCurMode->Gmask, VGLCurMode->Bmask, 0)) {
return NULL;
}
/* Update hardware acceleration info */
VGL_UpdateVideoInfo(this);
/* Set the blit function */
this->UpdateRects = VGL_DirectUpdate;
/* We're done */
return current;
}
int VGL_VideoInit(_THIS, SDL_PixelFormat *vformat)
{
int i;
int total_modes;
VGLMode **modes;
for ( i=0; i<NUM_MODELISTS; ++i ) {
SDL_nummodes[i] = 0;
SDL_modelist[i] = NULL;
}
if (SDL_getenv("SDL_NO_RAWKBD") == NULL) {
if (VGLKeyboardInit(VGL_CODEKEYS) != 0) {
SDL_SetError("Unable to initialize keyboard");
return -1;
}
} else {
warnx("Requiest to put keyboard into a raw mode ignored");
}
if (VGL_initkeymaps(STDIN_FILENO) != 0) {
SDL_SetError("Unable to initialize keymap");
return -1;
}
if (VGL_initmouse(STDIN_FILENO) != 0) {
SDL_SetError("Unable to initialize mouse");
return -1;
}
if (VGLCurMode != NULL) {
this->info.current_w = VGLCurMode->ModeInfo.Xsize;
this->info.current_h = VGLCurMode->ModeInfo.Ysize;
}
if (VGLCurMode != NULL)
vformat->BitsPerPixel = VGLCurMode->Depth;
else
vformat->BitsPerPixel = 16;
total_modes = 0;
modes = VGLListModes(-1, V_INFO_MM_DIRECT | V_INFO_MM_PACKED);
for (i = 0; modes[i] != NULL; i++) {
if ((modes[i]->ModeInfo.Type == VIDBUF8) ||
(modes[i]->ModeInfo.Type == VIDBUF16) ||
(modes[i]->ModeInfo.Type == VIDBUF32)) {
VGL_AddMode(this, modes[i]);
total_modes++;
}
}
if (total_modes == 0) {
SDL_SetError("No linear video modes available");
return -1;
}
VGL_UpdateVideoInfo(this);
hw_lock = SDL_CreateMutex();
if (hw_lock == NULL) {
SDL_SetError("Unable to create lock mutex");
VGL_VideoQuit(this);
return -1;
}
return 0;
}
int VGL_VideoInit(_THIS, SDL_PixelFormat *vformat)
{
int i;
int total_modes;
VGLMode **modes;
/* Initialize all variables that we clean on shutdown */
for ( i=0; i<NUM_MODELISTS; ++i ) {
SDL_nummodes[i] = 0;
SDL_modelist[i] = NULL;
}
/* Enable mouse and keyboard support */
if (SDL_getenv("SDL_NO_RAWKBD") == NULL) {
if (VGLKeyboardInit(VGL_CODEKEYS) != 0) {
SDL_SetError("Unable to initialize keyboard");
return -1;
}
} else {
warnx("Requiest to put keyboard into a raw mode ignored");
}
if (VGL_initkeymaps(STDIN_FILENO) != 0) {
SDL_SetError("Unable to initialize keymap");
return -1;
}
if (VGL_initmouse(STDIN_FILENO) != 0) {
SDL_SetError("Unable to initialize mouse");
return -1;
}
/* Determine the current screen size */
if (VGLCurMode != NULL) {
this->info.current_w = VGLCurMode->ModeInfo.Xsize;
this->info.current_h = VGLCurMode->ModeInfo.Ysize;
}
/* Determine the screen depth */
if (VGLCurMode != NULL)
vformat->BitsPerPixel = VGLCurMode->Depth;
else
vformat->BitsPerPixel = 16; /* Good default */
/* Query for the list of available video modes */
total_modes = 0;
modes = VGLListModes(-1, V_INFO_MM_DIRECT | V_INFO_MM_PACKED);
for (i = 0; modes[i] != NULL; i++) {
if ((modes[i]->ModeInfo.Type == VIDBUF8) ||
(modes[i]->ModeInfo.Type == VIDBUF16) ||
(modes[i]->ModeInfo.Type == VIDBUF32)) {
VGL_AddMode(this, modes[i]);
total_modes++;
}
}
if (total_modes == 0) {
SDL_SetError("No linear video modes available");
return -1;
}
/* Fill in our hardware acceleration capabilities */
VGL_UpdateVideoInfo(this);
/* Create the hardware surface lock mutex */
hw_lock = SDL_CreateMutex();
if (hw_lock == NULL) {
SDL_SetError("Unable to create lock mutex");
VGL_VideoQuit(this);
return -1;
}
/* We're done! */
return 0;
}
