diff options
Diffstat (limited to 'distrib/sdl-1.2.12/src/video/vgl/SDL_vglvideo.c')
| -rw-r--r-- | distrib/sdl-1.2.12/src/video/vgl/SDL_vglvideo.c | 640 |
1 files changed, 0 insertions, 640 deletions
diff --git a/distrib/sdl-1.2.12/src/video/vgl/SDL_vglvideo.c b/distrib/sdl-1.2.12/src/video/vgl/SDL_vglvideo.c deleted file mode 100644 index db25e51..0000000 --- a/distrib/sdl-1.2.12/src/video/vgl/SDL_vglvideo.c +++ /dev/null @@ -1,640 +0,0 @@ -/* - SDL - Simple DirectMedia Layer - Copyright (C) 1997-2006 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 -*/ -#include "SDL_config.h" - -/* libvga based SDL video driver implementation. -*/ - -#include <err.h> -#include <osreldate.h> -#include <unistd.h> -#include <sys/stat.h> - -#include <sys/fbio.h> -#include <sys/consio.h> -#include <sys/kbio.h> -#include <vgl.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_vglvideo.h" -#include "SDL_vglevents_c.h" -#include "SDL_vglmouse_c.h" - - -/* Initialization/Query functions */ -static int VGL_VideoInit(_THIS, SDL_PixelFormat *vformat); -static SDL_Rect **VGL_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags); -static SDL_Surface *VGL_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); -static int VGL_SetColors(_THIS, int firstcolor, int ncolors, - SDL_Color *colors); -static void VGL_VideoQuit(_THIS); - -/* Hardware surface functions */ -static int VGL_AllocHWSurface(_THIS, SDL_Surface *surface); -static int VGL_LockHWSurface(_THIS, SDL_Surface *surface); -static int VGL_FlipHWSurface(_THIS, SDL_Surface *surface); -static void VGL_UnlockHWSurface(_THIS, SDL_Surface *surface); -static void VGL_FreeHWSurface(_THIS, SDL_Surface *surface); - -/* Misc function */ -static VGLMode ** VGLListModes(int depth, int mem_model); -static void VGLWaitRetrace(void); - -/* VGL driver bootstrap functions */ - -static int VGL_Available(void) -{ - /* - * Check to see if we are root and stdin is a - * virtual console. Also try to ensure that - * modes other than 320x200 are available - */ - int console, hires_available, i; - VGLMode **modes; - - console = STDIN_FILENO; - if ( console >= 0 ) { - struct stat sb; - struct vt_mode dummy; - - if ( (fstat(console, &sb) < 0) || - (ioctl(console, VT_GETMODE, &dummy) < 0) ) { - console = -1; - } - } - if (geteuid() != 0 && console == -1) - return 0; - - modes = VGLListModes(8, V_INFO_MM_DIRECT | V_INFO_MM_PACKED); - hires_available = 0; - for (i = 0; modes[i] != NULL; i++) { - if ((modes[i]->ModeInfo.Xsize > 320) && - (modes[i]->ModeInfo.Ysize > 200) && - ((modes[i]->ModeInfo.Type == VIDBUF8) || - (modes[i]->ModeInfo.Type == VIDBUF16) || - (modes[i]->ModeInfo.Type == VIDBUF32))) { - hires_available = 1; - break; - } - } - return hires_available; -} - -static void VGL_DeleteDevice(SDL_VideoDevice *device) -{ - SDL_free(device->hidden); - SDL_free(device); -} - -static SDL_VideoDevice *VGL_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 *) - SDL_malloc((sizeof *device->hidden)); - } - if ( (device == NULL) || (device->hidden == NULL) ) { - SDL_OutOfMemory(); - if ( device ) { - SDL_free(device); - } - return(0); - } - SDL_memset(device->hidden, 0, (sizeof *device->hidden)); - - /* Set the function pointers */ - device->VideoInit = VGL_VideoInit; - device->ListModes = VGL_ListModes; - device->SetVideoMode = VGL_SetVideoMode; - device->SetColors = VGL_SetColors; - device->UpdateRects = NULL; - device->VideoQuit = VGL_VideoQuit; - device->AllocHWSurface = VGL_AllocHWSurface; - device->CheckHWBlit = NULL; - device->FillHWRect = NULL; - device->SetHWColorKey = NULL; - device->SetHWAlpha = NULL; - device->LockHWSurface = VGL_LockHWSurface; - device->UnlockHWSurface = VGL_UnlockHWSurface; - device->FlipHWSurface = VGL_FlipHWSurface; - device->FreeHWSurface = VGL_FreeHWSurface; - device->SetIcon = NULL; - device->SetCaption = NULL; - device->GetWMInfo = NULL; - device->FreeWMCursor = VGL_FreeWMCursor; - device->CreateWMCursor = VGL_CreateWMCursor; - device->ShowWMCursor = VGL_ShowWMCursor; - device->WarpWMCursor = VGL_WarpWMCursor; - device->InitOSKeymap = VGL_InitOSKeymap; - device->PumpEvents = VGL_PumpEvents; - - device->free = VGL_DeleteDevice; - - return device; -} - -VideoBootStrap VGL_bootstrap = { - "vgl", "FreeBSD libVGL", - VGL_Available, VGL_CreateDevice -}; - -static int VGL_AddMode(_THIS, VGLMode *inmode) -{ - SDL_Rect *mode; - - int i, index; - int next_mode; - - /* Check to see if we already have this mode */ - if (inmode->Depth < 8) { /* Not supported */ - return 0; - } - index = ((inmode->Depth + 7) / 8) - 1; - for (i=0; i<SDL_nummodes[index]; ++i) { - mode = SDL_modelist[index][i]; - if ((mode->w == inmode->ModeInfo.Xsize) && - (mode->h == inmode->ModeInfo.Ysize)) - 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 = inmode->ModeInfo.Xsize; - mode->h = inmode->ModeInfo.Ysize; - - /* 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; -} - -static void VGL_UpdateVideoInfo(_THIS) -{ - this->info.wm_available = 0; - this->info.hw_available = 1; - this->info.video_mem = 0; - if (VGLCurMode == NULL) { - return; - } - if (VGLCurMode->ModeInfo.PixelBytes > 0) { - this->info.video_mem = VGLCurMode->ModeInfo.PixelBytes * - VGLCurMode->ModeInfo.Xsize * - VGLCurMode->ModeInfo.Ysize; - } -} - -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; -} - -SDL_Rect **VGL_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags) -{ - return SDL_modelist[((format->BitsPerPixel+7)/8)-1]; -} - -/* Various screen update functions available */ -static void VGL_DirectUpdate(_THIS, int numrects, SDL_Rect *rects); -static void VGL_BankedUpdate(_THIS, int numrects, SDL_Rect *rects); - -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; -} - -/* We don't actually allow hardware surfaces other than the main one */ -static int VGL_AllocHWSurface(_THIS, SDL_Surface *surface) -{ - return -1; -} -static void VGL_FreeHWSurface(_THIS, SDL_Surface *surface) -{ - return; -} - -/* We need to wait for vertical retrace on page flipped displays */ -static int VGL_LockHWSurface(_THIS, SDL_Surface *surface) -{ - if (surface == SDL_VideoSurface) { - SDL_mutexP(hw_lock); - } - return 0; -} -static void VGL_UnlockHWSurface(_THIS, SDL_Surface *surface) -{ - if (surface == SDL_VideoSurface) { - SDL_mutexV(hw_lock); - } -} - -static int VGL_FlipHWSurface(_THIS, SDL_Surface *surface) -{ -// VGLWaitRetrace(); - if (VGLPanScreen(VGLDisplay, 0, flip_page * surface->h) < 0) { - SDL_SetError("VGLPanSreen() failed"); - return -1; - } - - flip_page = !flip_page; - surface->pixels = flip_address[flip_page]; - - return 0; -} - -static void VGL_DirectUpdate(_THIS, int numrects, SDL_Rect *rects) -{ - return; -} - -static void VGL_BankedUpdate(_THIS, int numrects, SDL_Rect *rects) -{ - return; -} - -int VGL_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors) -{ - int i; - - for(i = 0; i < ncolors; i++) { - VGLSetPaletteIndex(firstcolor + i, - colors[i].r>>2, - colors[i].g>>2, - colors[i].b>>2); - } - return 1; -} - -/* Note: If we are terminated, this could be called in the middle of - another SDL video routine -- notably UpdateRects. -*/ -void VGL_VideoQuit(_THIS) -{ - int i, j; - - /* Return the keyboard to the normal state */ - VGLKeyboardEnd(); - - /* Reset the console video mode if we actually initialised one */ - if (VGLCurMode != NULL) { - VGLEnd(); - SDL_free(VGLCurMode); - VGLCurMode = NULL; - } - - /* Clear the lock mutex */ - if (hw_lock != NULL) { - SDL_DestroyMutex(hw_lock); - hw_lock = NULL; - } - - /* Free video mode lists */ - for (i = 0; i < NUM_MODELISTS; i++) { - if (SDL_modelist[i] != NULL) { - for (j = 0; SDL_modelist[i][j] != NULL; ++j) { - SDL_free(SDL_modelist[i][j]); - } - SDL_free(SDL_modelist[i]); - SDL_modelist[i] = NULL; - } - } - - if ( this->screen && (this->screen->flags & SDL_HWSURFACE) ) { - /* Direct screen access, not a memory buffer */ - this->screen->pixels = NULL; - } -} - -#define VGL_RED_INDEX 0 -#define VGL_GREEN_INDEX 1 -#define VGL_BLUE_INDEX 2 - -static VGLMode ** -VGLListModes(int depth, int mem_model) -{ - static VGLMode **modes = NULL; - - VGLBitmap *vminfop; - VGLMode **modesp, *modescp; - video_info_t minfo; - int adptype, i, modenum; - - if (modes == NULL) { - modes = SDL_malloc(sizeof(VGLMode *) * M_VESA_MODE_MAX); - bzero(modes, sizeof(VGLMode *) * M_VESA_MODE_MAX); - } - modesp = modes; - - for (modenum = 0; modenum < M_VESA_MODE_MAX; modenum++) { - minfo.vi_mode = modenum; - if (ioctl(0, CONS_MODEINFO, &minfo) || ioctl(0, CONS_CURRENT, &adptype)) - continue; - if (minfo.vi_mode != modenum) - continue; - if ((minfo.vi_flags & V_INFO_GRAPHICS) == 0) - continue; - if ((mem_model != -1) && ((minfo.vi_mem_model & mem_model) == 0)) - continue; - if ((depth > 1) && (minfo.vi_depth != depth)) - continue; - - /* reallocf can fail */ - if ((*modesp = reallocf(*modesp, sizeof(VGLMode))) == NULL) - return NULL; - modescp = *modesp; - - vminfop = &(modescp->ModeInfo); - bzero(vminfop, sizeof(VGLBitmap)); - - vminfop->Type = NOBUF; - - vminfop->PixelBytes = 1; /* Good default value */ - switch (minfo.vi_mem_model) { - case V_INFO_MM_PLANAR: - /* we can handle EGA/VGA planar modes only */ - if (!(minfo.vi_depth != 4 || minfo.vi_planes != 4 - || (adptype != KD_EGA && adptype != KD_VGA))) - vminfop->Type = VIDBUF4; - break; - case V_INFO_MM_PACKED: - /* we can do only 256 color packed modes */ - if (minfo.vi_depth == 8) - vminfop->Type = VIDBUF8; - break; - case V_INFO_MM_VGAX: - vminfop->Type = VIDBUF8X; - break; -#if defined(__FREEBSD__) && (defined(__DragonFly__) || __FreeBSD_version >= 500000) - case V_INFO_MM_DIRECT: - vminfop->PixelBytes = minfo.vi_pixel_size; - switch (vminfop->PixelBytes) { - case 2: - vminfop->Type = VIDBUF16; - break; -#if notyet - case 3: - vminfop->Type = VIDBUF24; - break; -#endif - case 4: - vminfop->Type = VIDBUF32; - break; - default: - break; - } -#endif - default: - break; - } - if (vminfop->Type == NOBUF) - continue; - - switch (vminfop->Type) { - case VIDBUF16: - case VIDBUF32: - modescp->Rmask = ((1 << minfo.vi_pixel_fsizes[VGL_RED_INDEX]) - 1) << - minfo.vi_pixel_fields[VGL_RED_INDEX]; - modescp->Gmask = ((1 << minfo.vi_pixel_fsizes[VGL_GREEN_INDEX]) - 1) << - minfo.vi_pixel_fields[VGL_GREEN_INDEX]; - modescp->Bmask = ((1 << minfo.vi_pixel_fsizes[VGL_BLUE_INDEX]) - 1) << - minfo.vi_pixel_fields[VGL_BLUE_INDEX]; - break; - - default: - break; - } - - vminfop->Xsize = minfo.vi_width; - vminfop->Ysize = minfo.vi_height; - modescp->Depth = minfo.vi_depth; - - /* XXX */ - if (minfo.vi_mode >= M_VESA_BASE) - modescp->ModeId = _IO('V', minfo.vi_mode - M_VESA_BASE); - else - modescp->ModeId = _IO('S', minfo.vi_mode); - - /* Sort list */ - for (i = 0; modes + i < modesp ; i++) { - if (modes[i]->ModeInfo.Xsize * modes[i]->ModeInfo.Ysize > - vminfop->Xsize * modes[i]->ModeInfo.Ysize) - continue; - if ((modes[i]->ModeInfo.Xsize * modes[i]->ModeInfo.Ysize == - vminfop->Xsize * vminfop->Ysize) && - (modes[i]->Depth >= modescp->Depth)) - continue; - *modesp = modes[i]; - modes[i] = modescp; - modescp = *modesp; - vminfop = &(modescp->ModeInfo); - } - - modesp++; - } - - if (*modesp != NULL) { - SDL_free(*modesp); - *modesp = NULL; - } - - return modes; -} - -static void -VGLWaitRetrace(void) -{ - while (!(inb(0x3DA) & 8)); - while (inb(0x3DA) & 8); -} - |