diff options
Diffstat (limited to 'apps/plugins/sdl/src/video/fbcon/SDL_fbvideo.c')
-rw-r--r-- | apps/plugins/sdl/src/video/fbcon/SDL_fbvideo.c | 1982 |
1 files changed, 0 insertions, 1982 deletions
diff --git a/apps/plugins/sdl/src/video/fbcon/SDL_fbvideo.c b/apps/plugins/sdl/src/video/fbcon/SDL_fbvideo.c deleted file mode 100644 index 5e5880908d..0000000000 --- a/apps/plugins/sdl/src/video/fbcon/SDL_fbvideo.c +++ /dev/null @@ -1,1982 +0,0 @@ -/* - 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 -*/ -#include "SDL_config.h" - -/* Framebuffer console based SDL video driver implementation. -*/ - -#include <stdio.h> -#include <fcntl.h> -#include <unistd.h> -#include <sys/ioctl.h> -#include <sys/mman.h> - -#ifndef HAVE_GETPAGESIZE -#include <asm/page.h> /* For definition of PAGE_SIZE */ -#endif - -#include <linux/vt.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_fbvideo.h" -#include "SDL_fbmouse_c.h" -#include "SDL_fbevents_c.h" -#include "SDL_fb3dfx.h" -#include "SDL_fbmatrox.h" -#include "SDL_fbriva.h" - -/*#define FBCON_DEBUG*/ - -#if defined(i386) && defined(FB_TYPE_VGA_PLANES) -#define VGA16_FBCON_SUPPORT -#include <sys/io.h> /* For ioperm() */ -#ifndef FB_AUX_VGA_PLANES_VGA4 -#define FB_AUX_VGA_PLANES_VGA4 0 -#endif -/* -static inline void outb (unsigned char value, unsigned short port) -{ - __asm__ __volatile__ ("outb %b0,%w1"::"a" (value), "Nd" (port)); -} -*/ -#endif /* FB_TYPE_VGA_PLANES */ - -/* A list of video resolutions that we query for (sorted largest to smallest) */ -static const SDL_Rect checkres[] = { - { 0, 0, 1600, 1200 }, /* 16 bpp: 0x11E, or 286 */ - { 0, 0, 1408, 1056 }, /* 16 bpp: 0x19A, or 410 */ - { 0, 0, 1280, 1024 }, /* 16 bpp: 0x11A, or 282 */ - { 0, 0, 1152, 864 }, /* 16 bpp: 0x192, or 402 */ - { 0, 0, 1024, 768 }, /* 16 bpp: 0x117, or 279 */ - { 0, 0, 960, 720 }, /* 16 bpp: 0x18A, or 394 */ - { 0, 0, 800, 600 }, /* 16 bpp: 0x114, or 276 */ - { 0, 0, 768, 576 }, /* 16 bpp: 0x182, or 386 */ - { 0, 0, 720, 576 }, /* PAL */ - { 0, 0, 720, 480 }, /* NTSC */ - { 0, 0, 640, 480 }, /* 16 bpp: 0x111, or 273 */ - { 0, 0, 640, 400 }, /* 8 bpp: 0x100, or 256 */ - { 0, 0, 512, 384 }, - { 0, 0, 320, 240 }, - { 0, 0, 320, 200 } -}; -static const struct { - int xres; - int yres; - int pixclock; - int left; - int right; - int upper; - int lower; - int hslen; - int vslen; - int sync; - int vmode; -} vesa_timings[] = { -#ifdef USE_VESA_TIMINGS /* Only tested on Matrox Millenium I */ - { 640, 400, 39771, 48, 16, 39, 8, 96, 2, 2, 0 }, /* 70 Hz */ - { 640, 480, 39683, 48, 16, 33, 10, 96, 2, 0, 0 }, /* 60 Hz */ - { 768, 576, 26101, 144, 16, 28, 6, 112, 4, 0, 0 }, /* 60 Hz */ - { 800, 600, 24038, 144, 24, 28, 8, 112, 6, 0, 0 }, /* 60 Hz */ - { 960, 720, 17686, 144, 24, 28, 8, 112, 4, 0, 0 }, /* 60 Hz */ - { 1024, 768, 15386, 160, 32, 30, 4, 128, 4, 0, 0 }, /* 60 Hz */ - { 1152, 864, 12286, 192, 32, 30, 4, 128, 4, 0, 0 }, /* 60 Hz */ - { 1280, 1024, 9369, 224, 32, 32, 4, 136, 4, 0, 0 }, /* 60 Hz */ - { 1408, 1056, 8214, 256, 40, 32, 5, 144, 5, 0, 0 }, /* 60 Hz */ - { 1600, 1200,/*?*/0, 272, 48, 32, 5, 152, 5, 0, 0 }, /* 60 Hz */ -#else - /* You can generate these timings from your XF86Config file using - the 'modeline2fb' perl script included with the fbset package. - These timings were generated for Matrox Millenium I, 15" monitor. - */ - { 320, 200, 79440, 16, 16, 20, 4, 48, 1, 0, 2 }, /* 70 Hz */ - { 320, 240, 63492, 16, 16, 16, 4, 48, 2, 0, 2 }, /* 72 Hz */ - { 512, 384, 49603, 48, 16, 16, 1, 64, 3, 0, 0 }, /* 78 Hz */ - { 640, 400, 31746, 96, 32, 41, 1, 64, 3, 2, 0 }, /* 85 Hz */ - { 640, 480, 31746, 120, 16, 16, 1, 64, 3, 0, 0 }, /* 75 Hz */ - { 768, 576, 26101, 144, 16, 28, 6, 112, 4, 0, 0 }, /* 60 Hz */ - { 800, 600, 20000, 64, 56, 23, 37, 120, 6, 3, 0 }, /* 72 Hz */ - { 960, 720, 17686, 144, 24, 28, 8, 112, 4, 0, 0 }, /* 60 Hz */ - { 1024, 768, 13333, 144, 24, 29, 3, 136, 6, 0, 0 }, /* 70 Hz */ - { 1152, 864, 12286, 192, 32, 30, 4, 128, 4, 0, 0 }, /* 60 Hz */ - { 1280, 1024, 9369, 224, 32, 32, 4, 136, 4, 0, 0 }, /* 60 Hz */ - { 1408, 1056, 8214, 256, 40, 32, 5, 144, 5, 0, 0 }, /* 60 Hz */ - { 1600, 1200,/*?*/0, 272, 48, 32, 5, 152, 5, 0, 0 }, /* 60 Hz */ -#endif -}; -enum { - FBCON_ROTATE_NONE = 0, - FBCON_ROTATE_CCW = 90, - FBCON_ROTATE_UD = 180, - FBCON_ROTATE_CW = 270 -}; - -#define min(a,b) ((a)<(b)?(a):(b)) - -/* Initialization/Query functions */ -static int FB_VideoInit(_THIS, SDL_PixelFormat *vformat); -static SDL_Rect **FB_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags); -static SDL_Surface *FB_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); -#ifdef VGA16_FBCON_SUPPORT -static SDL_Surface *FB_SetVGA16Mode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); -#endif -static int FB_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors); -static void FB_VideoQuit(_THIS); - -/* Hardware surface functions */ -static int FB_InitHWSurfaces(_THIS, SDL_Surface *screen, char *base, int size); -static void FB_FreeHWSurfaces(_THIS); -static int FB_AllocHWSurface(_THIS, SDL_Surface *surface); -static int FB_LockHWSurface(_THIS, SDL_Surface *surface); -static void FB_UnlockHWSurface(_THIS, SDL_Surface *surface); -static void FB_FreeHWSurface(_THIS, SDL_Surface *surface); -static void FB_WaitVBL(_THIS); -static void FB_WaitIdle(_THIS); -static int FB_FlipHWSurface(_THIS, SDL_Surface *surface); - -/* Internal palette functions */ -static void FB_SavePalette(_THIS, struct fb_fix_screeninfo *finfo, - struct fb_var_screeninfo *vinfo); -static void FB_RestorePalette(_THIS); - -/* Shadow buffer functions */ -static FB_bitBlit FB_blit16; -static FB_bitBlit FB_blit16blocked; - -static int SDL_getpagesize(void) -{ -#ifdef HAVE_GETPAGESIZE - return getpagesize(); -#elif defined(PAGE_SIZE) - return PAGE_SIZE; -#else -#error Can not determine system page size. - return 4096; /* this is what it USED to be in Linux... */ -#endif -} - - -/* Small wrapper for mmap() so we can play nicely with no-mmu hosts - * (non-mmu hosts disallow the MAP_SHARED flag) */ - -static void *do_mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset) -{ - void *ret; - ret = mmap(start, length, prot, flags, fd, offset); - if ( ret == (char *)-1 && (flags & MAP_SHARED) ) { - ret = mmap(start, length, prot, - (flags & ~MAP_SHARED) | MAP_PRIVATE, fd, offset); - } - return ret; -} - -/* FB driver bootstrap functions */ - -static int FB_Available(void) -{ - int console = -1; - /* Added check for /fb/0 (devfs) */ - /* but - use environment variable first... if it fails, still check defaults */ - int idx = 0; - const char *SDL_fbdevs[4] = { NULL, "/dev/fb0", "/dev/fb/0", NULL }; - - SDL_fbdevs[0] = SDL_getenv("SDL_FBDEV"); - if( !SDL_fbdevs[0] ) - idx++; - for( ; SDL_fbdevs[idx]; idx++ ) - { - console = open(SDL_fbdevs[idx], O_RDWR, 0); - if ( console >= 0 ) { - close(console); - break; - } - } - return(console >= 0); -} - -static void FB_DeleteDevice(SDL_VideoDevice *device) -{ - SDL_free(device->hidden); - SDL_free(device); -} - -static SDL_VideoDevice *FB_CreateDevice(int devindex) -{ - SDL_VideoDevice *this; - - /* Initialize all variables that we clean on shutdown */ - this = (SDL_VideoDevice *)SDL_malloc(sizeof(SDL_VideoDevice)); - if ( this ) { - SDL_memset(this, 0, (sizeof *this)); - this->hidden = (struct SDL_PrivateVideoData *) - SDL_malloc((sizeof *this->hidden)); - } - if ( (this == NULL) || (this->hidden == NULL) ) { - SDL_OutOfMemory(); - if ( this ) { - SDL_free(this); - } - return(0); - } - SDL_memset(this->hidden, 0, (sizeof *this->hidden)); - wait_vbl = FB_WaitVBL; - wait_idle = FB_WaitIdle; - mouse_fd = -1; - keyboard_fd = -1; - - /* Set the function pointers */ - this->VideoInit = FB_VideoInit; - this->ListModes = FB_ListModes; - this->SetVideoMode = FB_SetVideoMode; - this->SetColors = FB_SetColors; - this->UpdateRects = NULL; - this->VideoQuit = FB_VideoQuit; - this->AllocHWSurface = FB_AllocHWSurface; - this->CheckHWBlit = NULL; - this->FillHWRect = NULL; - this->SetHWColorKey = NULL; - this->SetHWAlpha = NULL; - this->LockHWSurface = FB_LockHWSurface; - this->UnlockHWSurface = FB_UnlockHWSurface; - this->FlipHWSurface = FB_FlipHWSurface; - this->FreeHWSurface = FB_FreeHWSurface; - this->SetCaption = NULL; - this->SetIcon = NULL; - this->IconifyWindow = NULL; - this->GrabInput = NULL; - this->GetWMInfo = NULL; - this->InitOSKeymap = FB_InitOSKeymap; - this->PumpEvents = FB_PumpEvents; - - this->free = FB_DeleteDevice; - - return this; -} - -VideoBootStrap FBCON_bootstrap = { - "fbcon", "Linux Framebuffer Console", - FB_Available, FB_CreateDevice -}; - -#define FB_MODES_DB "/etc/fb.modes" - -static int read_fbmodes_line(FILE*f, char* line, int length) -{ - int blank; - char* c; - int i; - - blank=0; - /* find a relevant line */ - do - { - if (!fgets(line,length,f)) - return 0; - c=line; - while(((*c=='\t')||(*c==' '))&&(*c!=0)) - c++; - - if ((*c=='\n')||(*c=='#')||(*c==0)) - blank=1; - else - blank=0; - } - while(blank); - /* remove whitespace at the begining of the string */ - i=0; - do - { - line[i]=c[i]; - i++; - } - while(c[i]!=0); - return 1; -} - -static int read_fbmodes_mode(FILE *f, struct fb_var_screeninfo *vinfo) -{ - char line[1024]; - char option[256]; - - /* Find a "geometry" */ - do { - if (read_fbmodes_line(f, line, sizeof(line))==0) - return 0; - if (SDL_strncmp(line,"geometry",8)==0) - break; - } - while(1); - - SDL_sscanf(line, "geometry %d %d %d %d %d", &vinfo->xres, &vinfo->yres, - &vinfo->xres_virtual, &vinfo->yres_virtual, &vinfo->bits_per_pixel); - if (read_fbmodes_line(f, line, sizeof(line))==0) - return 0; - - SDL_sscanf(line, "timings %d %d %d %d %d %d %d", &vinfo->pixclock, - &vinfo->left_margin, &vinfo->right_margin, &vinfo->upper_margin, - &vinfo->lower_margin, &vinfo->hsync_len, &vinfo->vsync_len); - - vinfo->sync=0; - vinfo->vmode=FB_VMODE_NONINTERLACED; - - /* Parse misc options */ - do { - if (read_fbmodes_line(f, line, sizeof(line))==0) - return 0; - - if (SDL_strncmp(line,"hsync",5)==0) { - SDL_sscanf(line,"hsync %s",option); - if (SDL_strncmp(option,"high",4)==0) - vinfo->sync |= FB_SYNC_HOR_HIGH_ACT; - } - else if (SDL_strncmp(line,"vsync",5)==0) { - SDL_sscanf(line,"vsync %s",option); - if (SDL_strncmp(option,"high",4)==0) - vinfo->sync |= FB_SYNC_VERT_HIGH_ACT; - } - else if (SDL_strncmp(line,"csync",5)==0) { - SDL_sscanf(line,"csync %s",option); - if (SDL_strncmp(option,"high",4)==0) - vinfo->sync |= FB_SYNC_COMP_HIGH_ACT; - } - else if (SDL_strncmp(line,"extsync",5)==0) { - SDL_sscanf(line,"extsync %s",option); - if (SDL_strncmp(option,"true",4)==0) - vinfo->sync |= FB_SYNC_EXT; - } - else if (SDL_strncmp(line,"laced",5)==0) { - SDL_sscanf(line,"laced %s",option); - if (SDL_strncmp(option,"true",4)==0) - vinfo->vmode |= FB_VMODE_INTERLACED; - } - else if (SDL_strncmp(line,"double",6)==0) { - SDL_sscanf(line,"double %s",option); - if (SDL_strncmp(option,"true",4)==0) - vinfo->vmode |= FB_VMODE_DOUBLE; - } - } - while(SDL_strncmp(line,"endmode",7)!=0); - - return 1; -} - -static int FB_CheckMode(_THIS, struct fb_var_screeninfo *vinfo, - int index, unsigned int *w, unsigned int *h) -{ - int mode_okay; - - mode_okay = 0; - vinfo->bits_per_pixel = (index+1)*8; - vinfo->xres = *w; - vinfo->xres_virtual = *w; - vinfo->yres = *h; - vinfo->yres_virtual = *h; - vinfo->activate = FB_ACTIVATE_TEST; - if ( ioctl(console_fd, FBIOPUT_VSCREENINFO, vinfo) == 0 ) { -#ifdef FBCON_DEBUG - fprintf(stderr, "Checked mode %dx%d at %d bpp, got mode %dx%d at %d bpp\n", *w, *h, (index+1)*8, vinfo->xres, vinfo->yres, vinfo->bits_per_pixel); -#endif - if ( (((vinfo->bits_per_pixel+7)/8)-1) == index ) { - *w = vinfo->xres; - *h = vinfo->yres; - mode_okay = 1; - } - } - return mode_okay; -} - -static int FB_AddMode(_THIS, int index, unsigned int w, unsigned int h, int check_timings) -{ - SDL_Rect *mode; - int i; - int next_mode; - - /* Check to see if we already have this mode */ - if ( SDL_nummodes[index] > 0 ) { - mode = SDL_modelist[index][SDL_nummodes[index]-1]; - if ( (mode->w == w) && (mode->h == h) ) { -#ifdef FBCON_DEBUG - fprintf(stderr, "We already have mode %dx%d at %d bytes per pixel\n", w, h, index+1); -#endif - return(0); - } - } - - /* Only allow a mode if we have a valid timing for it */ - if ( check_timings ) { - int found_timing = 0; - for ( i=0; i<(sizeof(vesa_timings)/sizeof(vesa_timings[0])); ++i ) { - if ( (w == vesa_timings[i].xres) && - (h == vesa_timings[i].yres) && vesa_timings[i].pixclock ) { - found_timing = 1; - break; - } - } - if ( !found_timing ) { -#ifdef FBCON_DEBUG - fprintf(stderr, "No valid timing line for mode %dx%d\n", w, h); -#endif - 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 = w; - mode->h = h; -#ifdef FBCON_DEBUG - fprintf(stderr, "Adding mode %dx%d at %d bytes per pixel\n", w, h, index+1); -#endif - - /* 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 int cmpmodes(const void *va, const void *vb) -{ - const SDL_Rect *a = *(const SDL_Rect**)va; - const SDL_Rect *b = *(const SDL_Rect**)vb; - if ( a->h == b->h ) - return b->w - a->w; - else - return b->h - a->h; -} - -static void FB_SortModes(_THIS) -{ - int i; - for ( i=0; i<NUM_MODELISTS; ++i ) { - if ( SDL_nummodes[i] > 0 ) { - SDL_qsort(SDL_modelist[i], SDL_nummodes[i], sizeof *SDL_modelist[i], cmpmodes); - } - } -} - -static int FB_VideoInit(_THIS, SDL_PixelFormat *vformat) -{ - const int pagesize = SDL_getpagesize(); - struct fb_fix_screeninfo finfo; - struct fb_var_screeninfo vinfo; - int i, j; - int current_index; - unsigned int current_w; - unsigned int current_h; - const char *SDL_fbdev; - const char *rotation; - FILE *modesdb; - - /* Initialize the library */ - SDL_fbdev = SDL_getenv("SDL_FBDEV"); - if ( SDL_fbdev == NULL ) { - SDL_fbdev = "/dev/fb0"; - } - console_fd = open(SDL_fbdev, O_RDWR, 0); - if ( console_fd < 0 ) { - SDL_SetError("Unable to open %s", SDL_fbdev); - return(-1); - } - -#if !SDL_THREADS_DISABLED - /* Create the hardware surface lock mutex */ - hw_lock = SDL_CreateMutex(); - if ( hw_lock == NULL ) { - SDL_SetError("Unable to create lock mutex"); - FB_VideoQuit(this); - return(-1); - } -#endif - - /* Get the type of video hardware */ - if ( ioctl(console_fd, FBIOGET_FSCREENINFO, &finfo) < 0 ) { - SDL_SetError("Couldn't get console hardware info"); - FB_VideoQuit(this); - return(-1); - } - switch (finfo.type) { - case FB_TYPE_PACKED_PIXELS: - /* Supported, no worries.. */ - break; -#ifdef VGA16_FBCON_SUPPORT - case FB_TYPE_VGA_PLANES: - /* VGA16 is supported, but that's it */ - if ( finfo.type_aux == FB_AUX_VGA_PLANES_VGA4 ) { - if ( ioperm(0x3b4, 0x3df - 0x3b4 + 1, 1) < 0 ) { - SDL_SetError("No I/O port permissions"); - FB_VideoQuit(this); - return(-1); - } - this->SetVideoMode = FB_SetVGA16Mode; - break; - } - /* Fall through to unsupported case */ -#endif /* VGA16_FBCON_SUPPORT */ - default: - SDL_SetError("Unsupported console hardware"); - FB_VideoQuit(this); - return(-1); - } - switch (finfo.visual) { - case FB_VISUAL_TRUECOLOR: - case FB_VISUAL_PSEUDOCOLOR: - case FB_VISUAL_STATIC_PSEUDOCOLOR: - case FB_VISUAL_DIRECTCOLOR: - break; - default: - SDL_SetError("Unsupported console hardware"); - FB_VideoQuit(this); - return(-1); - } - - /* Check if the user wants to disable hardware acceleration */ - { const char *fb_accel; - fb_accel = SDL_getenv("SDL_FBACCEL"); - if ( fb_accel ) { - finfo.accel = SDL_atoi(fb_accel); - } - } - - /* Memory map the device, compensating for buggy PPC mmap() */ - mapped_offset = (((long)finfo.smem_start) - - (((long)finfo.smem_start)&~(pagesize-1))); - mapped_memlen = finfo.smem_len+mapped_offset; - mapped_mem = do_mmap(NULL, mapped_memlen, - PROT_READ|PROT_WRITE, MAP_SHARED, console_fd, 0); - if ( mapped_mem == (char *)-1 ) { - SDL_SetError("Unable to memory map the video hardware"); - mapped_mem = NULL; - FB_VideoQuit(this); - return(-1); - } - - /* Determine the current screen depth */ - if ( ioctl(console_fd, FBIOGET_VSCREENINFO, &vinfo) < 0 ) { - SDL_SetError("Couldn't get console pixel format"); - FB_VideoQuit(this); - return(-1); - } - vformat->BitsPerPixel = vinfo.bits_per_pixel; - if ( vformat->BitsPerPixel < 8 ) { - /* Assuming VGA16, we handle this via a shadow framebuffer */ - vformat->BitsPerPixel = 8; - } - for ( i=0; i<vinfo.red.length; ++i ) { - vformat->Rmask <<= 1; - vformat->Rmask |= (0x00000001<<vinfo.red.offset); - } - for ( i=0; i<vinfo.green.length; ++i ) { - vformat->Gmask <<= 1; - vformat->Gmask |= (0x00000001<<vinfo.green.offset); - } - for ( i=0; i<vinfo.blue.length; ++i ) { - vformat->Bmask <<= 1; - vformat->Bmask |= (0x00000001<<vinfo.blue.offset); - } - saved_vinfo = vinfo; - - /* Save hardware palette, if needed */ - FB_SavePalette(this, &finfo, &vinfo); - - /* If the I/O registers are available, memory map them so we - can take advantage of any supported hardware acceleration. - */ - vinfo.accel_flags = 0; /* Temporarily reserve registers */ - ioctl(console_fd, FBIOPUT_VSCREENINFO, &vinfo); - if ( finfo.accel && finfo.mmio_len ) { - mapped_iolen = finfo.mmio_len; - mapped_io = do_mmap(NULL, mapped_iolen, PROT_READ|PROT_WRITE, - MAP_SHARED, console_fd, mapped_memlen); - if ( mapped_io == (char *)-1 ) { - /* Hmm, failed to memory map I/O registers */ - mapped_io = NULL; - } - } - - rotate = FBCON_ROTATE_NONE; - rotation = SDL_getenv("SDL_VIDEO_FBCON_ROTATION"); - if (rotation != NULL) { - if (SDL_strlen(rotation) == 0) { - shadow_fb = 0; - rotate = FBCON_ROTATE_NONE; -#ifdef FBCON_DEBUG - printf("Not rotating, no shadow\n"); -#endif - } else if (!SDL_strcmp(rotation, "NONE")) { - shadow_fb = 1; - rotate = FBCON_ROTATE_NONE; -#ifdef FBCON_DEBUG - printf("Not rotating, but still using shadow\n"); -#endif - } else if (!SDL_strcmp(rotation, "CW")) { - shadow_fb = 1; - rotate = FBCON_ROTATE_CW; -#ifdef FBCON_DEBUG - printf("Rotating screen clockwise\n"); -#endif - } else if (!SDL_strcmp(rotation, "CCW")) { - shadow_fb = 1; - rotate = FBCON_ROTATE_CCW; -#ifdef FBCON_DEBUG - printf("Rotating screen counter clockwise\n"); -#endif - } else if (!SDL_strcmp(rotation, "UD")) { - shadow_fb = 1; - rotate = FBCON_ROTATE_UD; -#ifdef FBCON_DEBUG - printf("Rotating screen upside down\n"); -#endif - } else { - SDL_SetError("\"%s\" is not a valid value for " - "SDL_VIDEO_FBCON_ROTATION", rotation); - return(-1); - } - } - - if (rotate == FBCON_ROTATE_CW || rotate == FBCON_ROTATE_CCW) { - current_w = vinfo.yres; - current_h = vinfo.xres; - } else { - current_w = vinfo.xres; - current_h = vinfo.yres; - } - - /* Query for the list of available video modes */ - current_index = ((vinfo.bits_per_pixel+7)/8)-1; - modesdb = fopen(FB_MODES_DB, "r"); - for ( i=0; i<NUM_MODELISTS; ++i ) { - SDL_nummodes[i] = 0; - SDL_modelist[i] = NULL; - } - if ( SDL_getenv("SDL_FB_BROKEN_MODES") != NULL ) { - FB_AddMode(this, current_index, current_w, current_h, 0); - } else if(modesdb) { - while ( read_fbmodes_mode(modesdb, &vinfo) ) { - for ( i=0; i<NUM_MODELISTS; ++i ) { - unsigned int w, h; - - if (rotate == FBCON_ROTATE_CW || rotate == FBCON_ROTATE_CCW) { - w = vinfo.yres; - h = vinfo.xres; - } else { - w = vinfo.xres; - h = vinfo.yres; - } - /* See if we are querying for the current mode */ - if ( i == current_index ) { - if ( (current_w > w) || (current_h > h) ) { - /* Only check once */ - FB_AddMode(this, i, current_w, current_h, 0); - current_index = -1; - } - } - if ( FB_CheckMode(this, &vinfo, i, &w, &h) ) { - FB_AddMode(this, i, w, h, 0); - } - } - } - fclose(modesdb); - FB_SortModes(this); - } else { - for ( i=0; i<NUM_MODELISTS; ++i ) { - for ( j=0; j<(sizeof(checkres)/sizeof(checkres[0])); ++j ) { - unsigned int w, h; - - if (rotate == FBCON_ROTATE_CW || rotate == FBCON_ROTATE_CCW) { - w = checkres[j].h; - h = checkres[j].w; - } else { - w = checkres[j].w; - h = checkres[j].h; - } - /* See if we are querying for the current mode */ - if ( i == current_index ) { - if ( (current_w > w) || (current_h > h) ) { - /* Only check once */ - FB_AddMode(this, i, current_w, current_h, 0); - current_index = -1; - } - } - if ( FB_CheckMode(this, &vinfo, i, &w, &h) ) { - FB_AddMode(this, i, w, h, 1); - } - } - } - } - - this->info.current_w = current_w; - this->info.current_h = current_h; - this->info.wm_available = 0; - this->info.hw_available = !shadow_fb; - this->info.video_mem = shadow_fb ? 0 : finfo.smem_len/1024; - /* Fill in our hardware acceleration capabilities */ - if ( mapped_io ) { - switch (finfo.accel) { - case FB_ACCEL_MATROX_MGA2064W: - case FB_ACCEL_MATROX_MGA1064SG: - case FB_ACCEL_MATROX_MGA2164W: - case FB_ACCEL_MATROX_MGA2164W_AGP: - case FB_ACCEL_MATROX_MGAG100: - /*case FB_ACCEL_MATROX_MGAG200: G200 acceleration broken! */ - case FB_ACCEL_MATROX_MGAG400: -#ifdef FBACCEL_DEBUG - printf("Matrox hardware accelerator!\n"); -#endif - FB_MatroxAccel(this, finfo.accel); - break; - case FB_ACCEL_3DFX_BANSHEE: -#ifdef FBACCEL_DEBUG - printf("3DFX hardware accelerator!\n"); -#endif - FB_3DfxAccel(this, finfo.accel); - break; - case FB_ACCEL_NV3: - case FB_ACCEL_NV4: -#ifdef FBACCEL_DEBUG - printf("NVidia hardware accelerator!\n"); -#endif - FB_RivaAccel(this, finfo.accel); - break; - default: -#ifdef FBACCEL_DEBUG - printf("Unknown hardware accelerator.\n"); -#endif - break; - } - } - - if (shadow_fb) { - shadow_mem = (char *)SDL_malloc(mapped_memlen); - if (shadow_mem == NULL) { - SDL_SetError("No memory for shadow"); - return (-1); - } - } - - /* Enable mouse and keyboard support */ - if ( FB_OpenKeyboard(this) < 0 ) { - FB_VideoQuit(this); - return(-1); - } - if ( FB_OpenMouse(this) < 0 ) { - const char *sdl_nomouse; - - sdl_nomouse = SDL_getenv("SDL_NOMOUSE"); - if ( ! sdl_nomouse ) { - SDL_SetError("Unable to open mouse"); - FB_VideoQuit(this); - return(-1); - } - } - - /* We're done! */ - return(0); -} - -static SDL_Rect **FB_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags) -{ - return(SDL_modelist[((format->BitsPerPixel+7)/8)-1]); -} - -/* Various screen update functions available */ -static void FB_DirectUpdate(_THIS, int numrects, SDL_Rect *rects); -#ifdef VGA16_FBCON_SUPPORT -static void FB_VGA16Update(_THIS, int numrects, SDL_Rect *rects); -#endif - -#ifdef FBCON_DEBUG -static void print_vinfo(struct fb_var_screeninfo *vinfo) -{ - fprintf(stderr, "Printing vinfo:\n"); - fprintf(stderr, "\txres: %d\n", vinfo->xres); - fprintf(stderr, "\tyres: %d\n", vinfo->yres); - fprintf(stderr, "\txres_virtual: %d\n", vinfo->xres_virtual); - fprintf(stderr, "\tyres_virtual: %d\n", vinfo->yres_virtual); - fprintf(stderr, "\txoffset: %d\n", vinfo->xoffset); - fprintf(stderr, "\tyoffset: %d\n", vinfo->yoffset); - fprintf(stderr, "\tbits_per_pixel: %d\n", vinfo->bits_per_pixel); - fprintf(stderr, "\tgrayscale: %d\n", vinfo->grayscale); - fprintf(stderr, "\tnonstd: %d\n", vinfo->nonstd); - fprintf(stderr, "\tactivate: %d\n", vinfo->activate); - fprintf(stderr, "\theight: %d\n", vinfo->height); - fprintf(stderr, "\twidth: %d\n", vinfo->width); - fprintf(stderr, "\taccel_flags: %d\n", vinfo->accel_flags); - fprintf(stderr, "\tpixclock: %d\n", vinfo->pixclock); - fprintf(stderr, "\tleft_margin: %d\n", vinfo->left_margin); - fprintf(stderr, "\tright_margin: %d\n", vinfo->right_margin); - fprintf(stderr, "\tupper_margin: %d\n", vinfo->upper_margin); - fprintf(stderr, "\tlower_margin: %d\n", vinfo->lower_margin); - fprintf(stderr, "\thsync_len: %d\n", vinfo->hsync_len); - fprintf(stderr, "\tvsync_len: %d\n", vinfo->vsync_len); - fprintf(stderr, "\tsync: %d\n", vinfo->sync); - fprintf(stderr, "\tvmode: %d\n", vinfo->vmode); - fprintf(stderr, "\tred: %d/%d\n", vinfo->red.length, vinfo->red.offset); - fprintf(stderr, "\tgreen: %d/%d\n", vinfo->green.length, vinfo->green.offset); - fprintf(stderr, "\tblue: %d/%d\n", vinfo->blue.length, vinfo->blue.offset); - fprintf(stderr, "\talpha: %d/%d\n", vinfo->transp.length, vinfo->transp.offset); -} -static void print_finfo(struct fb_fix_screeninfo *finfo) -{ - fprintf(stderr, "Printing finfo:\n"); - fprintf(stderr, "\tsmem_start = %p\n", (char *)finfo->smem_start); - fprintf(stderr, "\tsmem_len = %d\n", finfo->smem_len); - fprintf(stderr, "\ttype = %d\n", finfo->type); - fprintf(stderr, "\ttype_aux = %d\n", finfo->type_aux); - fprintf(stderr, "\tvisual = %d\n", finfo->visual); - fprintf(stderr, "\txpanstep = %d\n", finfo->xpanstep); - fprintf(stderr, "\typanstep = %d\n", finfo->ypanstep); - fprintf(stderr, "\tywrapstep = %d\n", finfo->ywrapstep); - fprintf(stderr, "\tline_length = %d\n", finfo->line_length); - fprintf(stderr, "\tmmio_start = %p\n", (char *)finfo->mmio_start); - fprintf(stderr, "\tmmio_len = %d\n", finfo->mmio_len); - fprintf(stderr, "\taccel = %d\n", finfo->accel); -} -#endif - -static int choose_fbmodes_mode(struct fb_var_screeninfo *vinfo) -{ - int matched; - FILE *modesdb; - struct fb_var_screeninfo cinfo; - - matched = 0; - modesdb = fopen(FB_MODES_DB, "r"); - if ( modesdb ) { - /* Parse the mode definition file */ - while ( read_fbmodes_mode(modesdb, &cinfo) ) { - if ( (vinfo->xres == cinfo.xres && vinfo->yres == cinfo.yres) && - (!matched || (vinfo->bits_per_pixel == cinfo.bits_per_pixel)) ) { - vinfo->pixclock = cinfo.pixclock; - vinfo->left_margin = cinfo.left_margin; - vinfo->right_margin = cinfo.right_margin; - vinfo->upper_margin = cinfo.upper_margin; - vinfo->lower_margin = cinfo.lower_margin; - vinfo->hsync_len = cinfo.hsync_len; - vinfo->vsync_len = cinfo.vsync_len; - if ( matched ) { - break; - } - matched = 1; - } - } - fclose(modesdb); - } - return(matched); -} - -static int choose_vesa_mode(struct fb_var_screeninfo *vinfo) -{ - int matched; - int i; - - /* Check for VESA timings */ - matched = 0; - for ( i=0; i<(sizeof(vesa_timings)/sizeof(vesa_timings[0])); ++i ) { - if ( (vinfo->xres == vesa_timings[i].xres) && - (vinfo->yres == vesa_timings[i].yres) ) { -#ifdef FBCON_DEBUG - fprintf(stderr, "Using VESA timings for %dx%d\n", - vinfo->xres, vinfo->yres); -#endif - if ( vesa_timings[i].pixclock ) { - vinfo->pixclock = vesa_timings[i].pixclock; - } - vinfo->left_margin = vesa_timings[i].left; - vinfo->right_margin = vesa_timings[i].right; - vinfo->upper_margin = vesa_timings[i].upper; - vinfo->lower_margin = vesa_timings[i].lower; - vinfo->hsync_len = vesa_timings[i].hslen; - vinfo->vsync_len = vesa_timings[i].vslen; - vinfo->sync = vesa_timings[i].sync; - vinfo->vmode = vesa_timings[i].vmode; - matched = 1; - break; - } - } - return(matched); -} - -#ifdef VGA16_FBCON_SUPPORT -static SDL_Surface *FB_SetVGA16Mode(_THIS, SDL_Surface *current, - int width, int height, int bpp, Uint32 flags) -{ - struct fb_fix_screeninfo finfo; - struct fb_var_screeninfo vinfo; - - /* Set the terminal into graphics mode */ - if ( FB_EnterGraphicsMode(this) < 0 ) { - return(NULL); - } - - /* Restore the original palette */ - FB_RestorePalette(this); - - /* Set the video mode and get the final screen format */ - if ( ioctl(console_fd, FBIOGET_VSCREENINFO, &vinfo) < 0 ) { - SDL_SetError("Couldn't get console screen info"); - return(NULL); - } - cache_vinfo = vinfo; -#ifdef FBCON_DEBUG - fprintf(stderr, "Printing actual vinfo:\n"); - print_vinfo(&vinfo); -#endif - if ( ! SDL_ReallocFormat(current, bpp, 0, 0, 0, 0) ) { - return(NULL); - } - current->format->palette->ncolors = 16; - - /* Get the fixed information about the console hardware. - This is necessary since finfo.line_length changes. - */ - if ( ioctl(console_fd, FBIOGET_FSCREENINFO, &finfo) < 0 ) { - SDL_SetError("Couldn't get console hardware info"); - return(NULL); - } -#ifdef FBCON_DEBUG - fprintf(stderr, "Printing actual finfo:\n"); - print_finfo(&finfo); -#endif - - /* Save hardware palette, if needed */ - FB_SavePalette(this, &finfo, &vinfo); - - /* Set up the new mode framebuffer */ - current->flags = SDL_FULLSCREEN; - current->w = vinfo.xres; - current->h = vinfo.yres; - current->pitch = current->w; - current->pixels = SDL_malloc(current->h*current->pitch); - - /* Set the update rectangle function */ - this->UpdateRects = FB_VGA16Update; - - /* We're done */ - return(current); -} -#endif /* VGA16_FBCON_SUPPORT */ - -static SDL_Surface *FB_SetVideoMode(_THIS, SDL_Surface *current, - int width, int height, int bpp, Uint32 flags) -{ - struct fb_fix_screeninfo finfo; - struct fb_var_screeninfo vinfo; - int i; - Uint32 Rmask; - Uint32 Gmask; - Uint32 Bmask; - char *surfaces_mem; - int surfaces_len; - - /* Set the terminal into graphics mode */ - if ( FB_EnterGraphicsMode(this) < 0 ) { - return(NULL); - } - - /* Restore the original palette */ - FB_RestorePalette(this); - - /* Set the video mode and get the final screen format */ - if ( ioctl(console_fd, FBIOGET_VSCREENINFO, &vinfo) < 0 ) { - SDL_SetError("Couldn't get console screen info"); - return(NULL); - } -#ifdef FBCON_DEBUG - fprintf(stderr, "Printing original vinfo:\n"); - print_vinfo(&vinfo); -#endif - /* Do not use double buffering with shadow buffer */ - if (shadow_fb) { - flags &= ~SDL_DOUBLEBUF; - } - - if ( (vinfo.xres != width) || (vinfo.yres != height) || - (vinfo.bits_per_pixel != bpp) || (flags & SDL_DOUBLEBUF) ) { - vinfo.activate = FB_ACTIVATE_NOW; - vinfo.accel_flags = 0; - vinfo.bits_per_pixel = bpp; - vinfo.xres = width; - vinfo.xres_virtual = width; - vinfo.yres = height; - if ( flags & SDL_DOUBLEBUF ) { - vinfo.yres_virtual = height*2; - } else { - vinfo.yres_virtual = height; - } - vinfo.xoffset = 0; - vinfo.yoffset = 0; - vinfo.red.length = vinfo.red.offset = 0; - vinfo.green.length = vinfo.green.offset = 0; - vinfo.blue.length = vinfo.blue.offset = 0; - vinfo.transp.length = vinfo.transp.offset = 0; - if ( ! choose_fbmodes_mode(&vinfo) ) { - choose_vesa_mode(&vinfo); - } -#ifdef FBCON_DEBUG - fprintf(stderr, "Printing wanted vinfo:\n"); - print_vinfo(&vinfo); -#endif - if ( !shadow_fb && - ioctl(console_fd, FBIOPUT_VSCREENINFO, &vinfo) < 0 ) { - vinfo.yres_virtual = height; - if ( ioctl(console_fd, FBIOPUT_VSCREENINFO, &vinfo) < 0 ) { - SDL_SetError("Couldn't set console screen info"); - return(NULL); - } - } - } else { - int maxheight; - - /* Figure out how much video memory is available */ - if ( flags & SDL_DOUBLEBUF ) { - maxheight = height*2; - } else { - maxheight = height; - } - if ( vinfo.yres_virtual > maxheight ) { - vinfo.yres_virtual = maxheight; - } - } - cache_vinfo = vinfo; -#ifdef FBCON_DEBUG - fprintf(stderr, "Printing actual vinfo:\n"); - print_vinfo(&vinfo); -#endif - Rmask = 0; - for ( i=0; i<vinfo.red.length; ++i ) { - Rmask <<= 1; - Rmask |= (0x00000001<<vinfo.red.offset); - } - Gmask = 0; - for ( i=0; i<vinfo.green.length; ++i ) { - Gmask <<= 1; - Gmask |= (0x00000001<<vinfo.green.offset); - } - Bmask = 0; - for ( i=0; i<vinfo.blue.length; ++i ) { - Bmask <<= 1; - Bmask |= (0x00000001<<vinfo.blue.offset); - } - if ( ! SDL_ReallocFormat(current, vinfo.bits_per_pixel, - Rmask, Gmask, Bmask, 0) ) { - return(NULL); - } - - /* Get the fixed information about the console hardware. - This is necessary since finfo.line_length changes. - */ - if ( ioctl(console_fd, FBIOGET_FSCREENINFO, &finfo) < 0 ) { - SDL_SetError("Couldn't get console hardware info"); - return(NULL); - } - - /* Save hardware palette, if needed */ - FB_SavePalette(this, &finfo, &vinfo); - - if (shadow_fb) { - if (vinfo.bits_per_pixel == 16) { - blitFunc = (rotate == FBCON_ROTATE_NONE || - rotate == FBCON_ROTATE_UD) ? - FB_blit16 : FB_blit16blocked; - } else { -#ifdef FBCON_DEBUG - fprintf(stderr, "Init vinfo:\n"); - print_vinfo(&vinfo); -#endif - SDL_SetError("Using software buffer, but no blitter " - "function is available for %d bpp.", - vinfo.bits_per_pixel); - return(NULL); - } - } - - /* Set up the new mode framebuffer */ - current->flags &= SDL_FULLSCREEN; - if (shadow_fb) { - current->flags |= SDL_SWSURFACE; - } else { - current->flags |= SDL_HWSURFACE; - } - current->w = vinfo.xres; - current->h = vinfo.yres; - if (shadow_fb) { - current->pitch = current->w * ((vinfo.bits_per_pixel + 7) / 8); - current->pixels = shadow_mem; - physlinebytes = finfo.line_length; - } else { - current->pitch = finfo.line_length; - current->pixels = mapped_mem+mapped_offset; - } - - /* Set up the information for hardware surfaces */ - surfaces_mem = (char *)current->pixels + - vinfo.yres_virtual*current->pitch; - surfaces_len = (shadow_fb) ? - 0 : (mapped_memlen-(surfaces_mem-mapped_mem)); - - FB_FreeHWSurfaces(this); - FB_InitHWSurfaces(this, current, surfaces_mem, surfaces_len); - - /* Let the application know we have a hardware palette */ - switch (finfo.visual) { - case FB_VISUAL_PSEUDOCOLOR: - current->flags |= SDL_HWPALETTE; - break; - default: - break; - } - - /* Update for double-buffering, if we can */ - if ( flags & SDL_DOUBLEBUF ) { - if ( vinfo.yres_virtual == (height*2) ) { - current->flags |= SDL_DOUBLEBUF; - flip_page = 0; - flip_address[0] = (char *)current->pixels; - flip_address[1] = (char *)current->pixels+ - current->h*current->pitch; - this->screen = current; - FB_FlipHWSurface(this, current); - this->screen = NULL; - } - } - - /* Set the update rectangle function */ - this->UpdateRects = FB_DirectUpdate; - - /* We're done */ - return(current); -} - -#ifdef FBCON_DEBUG -void FB_DumpHWSurfaces(_THIS) -{ - vidmem_bucket *bucket; - - printf("Memory left: %d (%d total)\n", surfaces_memleft, surfaces_memtotal); - printf("\n"); - printf(" Base Size\n"); - for ( bucket=&surfaces; bucket; bucket=bucket->next ) { - printf("Bucket: %p, %d (%s)\n", bucket->base, bucket->size, bucket->used ? "used" : "free"); - if ( bucket->prev ) { - if ( bucket->base != bucket->prev->base+bucket->prev->size ) { - printf("Warning, corrupt bucket list! (prev)\n"); - } - } else { - if ( bucket != &surfaces ) { - printf("Warning, corrupt bucket list! (!prev)\n"); - } - } - if ( bucket->next ) { - if ( bucket->next->base != bucket->base+bucket->size ) { - printf("Warning, corrupt bucket list! (next)\n"); - } - } - } - printf("\n"); -} -#endif - -static int FB_InitHWSurfaces(_THIS, SDL_Surface *screen, char *base, int size) -{ - vidmem_bucket *bucket; - - surfaces_memtotal = size; - surfaces_memleft = size; - - if ( surfaces_memleft > 0 ) { - bucket = (vidmem_bucket *)SDL_malloc(sizeof(*bucket)); - if ( bucket == NULL ) { - SDL_OutOfMemory(); - return(-1); - } - bucket->prev = &surfaces; - bucket->used = 0; - bucket->dirty = 0; - bucket->base = base; - bucket->size = size; - bucket->next = NULL; - } else { - bucket = NULL; - } - - surfaces.prev = NULL; - surfaces.used = 1; - surfaces.dirty = 0; - surfaces.base = screen->pixels; - surfaces.size = (unsigned int)((long)base - (long)surfaces.base); - surfaces.next = bucket; - screen->hwdata = (struct private_hwdata *)&surfaces; - return(0); -} -static void FB_FreeHWSurfaces(_THIS) -{ - vidmem_bucket *bucket, *freeable; - - bucket = surfaces.next; - while ( bucket ) { - freeable = bucket; - bucket = bucket->next; - SDL_free(freeable); - } - surfaces.next = NULL; -} - -static int FB_AllocHWSurface(_THIS, SDL_Surface *surface) -{ - vidmem_bucket *bucket; - int size; - int extra; - -/* Temporarily, we only allow surfaces the same width as display. - Some blitters require the pitch between two hardware surfaces - to be the same. Others have interesting alignment restrictions. - Until someone who knows these details looks at the code... -*/ -if ( surface->pitch > SDL_VideoSurface->pitch ) { - SDL_SetError("Surface requested wider than screen"); - return(-1); -} -surface->pitch = SDL_VideoSurface->pitch; - size = surface->h * surface->pitch; -#ifdef FBCON_DEBUG - fprintf(stderr, "Allocating bucket of %d bytes\n", size); -#endif - - /* Quick check for available mem */ - if ( size > surfaces_memleft ) { - SDL_SetError("Not enough video memory"); - return(-1); - } - - /* Search for an empty bucket big enough */ - for ( bucket=&surfaces; bucket; bucket=bucket->next ) { - if ( ! bucket->used && (size <= bucket->size) ) { - break; - } - } - if ( bucket == NULL ) { - SDL_SetError("Video memory too fragmented"); - return(-1); - } - - /* Create a new bucket for left-over memory */ - extra = (bucket->size - size); - if ( extra ) { - vidmem_bucket *newbucket; - -#ifdef FBCON_DEBUG - fprintf(stderr, "Adding new free bucket of %d bytes\n", extra); -#endif - newbucket = (vidmem_bucket *)SDL_malloc(sizeof(*newbucket)); - if ( newbucket == NULL ) { - SDL_OutOfMemory(); - return(-1); - } - newbucket->prev = bucket; - newbucket->used = 0; - newbucket->base = bucket->base+size; - newbucket->size = extra; - newbucket->next = bucket->next; - if ( bucket->next ) { - bucket->next->prev = newbucket; - } - bucket->next = newbucket; - } - - /* Set the current bucket values and return it! */ - bucket->used = 1; - bucket->size = size; - bucket->dirty = 0; -#ifdef FBCON_DEBUG - fprintf(stderr, "Allocated %d bytes at %p\n", bucket->size, bucket->base); -#endif - surfaces_memleft -= size; - surface->flags |= SDL_HWSURFACE; - surface->pixels = bucket->base; - surface->hwdata = (struct private_hwdata *)bucket; - return(0); -} -static void FB_FreeHWSurface(_THIS, SDL_Surface *surface) -{ - vidmem_bucket *bucket, *freeable; - - /* Look for the bucket in the current list */ - for ( bucket=&surfaces; bucket; bucket=bucket->next ) { - if ( bucket == (vidmem_bucket *)surface->hwdata ) { - break; - } - } - if ( bucket && bucket->used ) { - /* Add the memory back to the total */ -#ifdef DGA_DEBUG - printf("Freeing bucket of %d bytes\n", bucket->size); -#endif - surfaces_memleft += bucket->size; - - /* Can we merge the space with surrounding buckets? */ - bucket->used = 0; - if ( bucket->next && ! bucket->next->used ) { -#ifdef DGA_DEBUG - printf("Merging with next bucket, for %d total bytes\n", bucket->size+bucket->next->size); -#endif - freeable = bucket->next; - bucket->size += bucket->next->size; - bucket->next = bucket->next->next; - if ( bucket->next ) { - bucket->next->prev = bucket; - } - SDL_free(freeable); - } - if ( bucket->prev && ! bucket->prev->used ) { -#ifdef DGA_DEBUG - printf("Merging with previous bucket, for %d total bytes\n", bucket->prev->size+bucket->size); -#endif - freeable = bucket; - bucket->prev->size += bucket->size; - bucket->prev->next = bucket->next; - if ( bucket->next ) { - bucket->next->prev = bucket->prev; - } - SDL_free(freeable); - } - } - surface->pixels = NULL; - surface->hwdata = NULL; -} - -static int FB_LockHWSurface(_THIS, SDL_Surface *surface) -{ - if ( switched_away ) { - return -2; /* no hardware access */ - } - if ( surface == this->screen ) { - SDL_mutexP(hw_lock); - if ( FB_IsSurfaceBusy(surface) ) { - FB_WaitBusySurfaces(this); - } - } else { - if ( FB_IsSurfaceBusy(surface) ) { - FB_WaitBusySurfaces(this); - } - } - return(0); -} -static void FB_UnlockHWSurface(_THIS, SDL_Surface *surface) -{ - if ( surface == this->screen ) { - SDL_mutexV(hw_lock); - } -} - -static void FB_WaitVBL(_THIS) -{ -#ifdef FBIOWAITRETRACE /* Heheh, this didn't make it into the main kernel */ - ioctl(console_fd, FBIOWAITRETRACE, 0); -#endif - return; -} - -static void FB_WaitIdle(_THIS) -{ - return; -} - -static int FB_FlipHWSurface(_THIS, SDL_Surface *surface) -{ - if ( switched_away ) { - return -2; /* no hardware access */ - } - - /* Wait for vertical retrace and then flip display */ - cache_vinfo.yoffset = flip_page*surface->h; - if ( FB_IsSurfaceBusy(this->screen) ) { - FB_WaitBusySurfaces(this); - } - wait_vbl(this); - if ( ioctl(console_fd, FBIOPAN_DISPLAY, &cache_vinfo) < 0 ) { - SDL_SetError("ioctl(FBIOPAN_DISPLAY) failed"); - return(-1); - } - flip_page = !flip_page; - - surface->pixels = flip_address[flip_page]; - return(0); -} - -static void FB_blit16(Uint8 *byte_src_pos, int src_right_delta, int src_down_delta, - Uint8 *byte_dst_pos, int dst_linebytes, int width, int height) -{ - int w; - Uint16 *src_pos = (Uint16 *)byte_src_pos; - Uint16 *dst_pos = (Uint16 *)byte_dst_pos; - - while (height) { - Uint16 *src = src_pos; - Uint16 *dst = dst_pos; - for (w = width; w != 0; w--) { - *dst = *src; - src += src_right_delta; - dst++; - } - dst_pos = (Uint16 *)((Uint8 *)dst_pos + dst_linebytes); - src_pos += src_down_delta; - height--; - } -} - -#define BLOCKSIZE_W 32 -#define BLOCKSIZE_H 32 - -static void FB_blit16blocked(Uint8 *byte_src_pos, int src_right_delta, int src_down_delta, - Uint8 *byte_dst_pos, int dst_linebytes, int width, int height) -{ - int w; - Uint16 *src_pos = (Uint16 *)byte_src_pos; - Uint16 *dst_pos = (Uint16 *)byte_dst_pos; - - while (height > 0) { - Uint16 *src = src_pos; - Uint16 *dst = dst_pos; - for (w = width; w > 0; w -= BLOCKSIZE_W) { - FB_blit16((Uint8 *)src, - src_right_delta, - src_down_delta, - (Uint8 *)dst, - dst_linebytes, - min(w, BLOCKSIZE_W), - min(height, BLOCKSIZE_H)); - src += src_right_delta * BLOCKSIZE_W; - dst += BLOCKSIZE_W; - } - dst_pos = (Uint16 *)((Uint8 *)dst_pos + dst_linebytes * BLOCKSIZE_H); - src_pos += src_down_delta * BLOCKSIZE_H; - height -= BLOCKSIZE_H; - } -} - -static void FB_DirectUpdate(_THIS, int numrects, SDL_Rect *rects) -{ - int width = cache_vinfo.xres; - int height = cache_vinfo.yres; - int bytes_per_pixel = (cache_vinfo.bits_per_pixel + 7) / 8; - int i; - - if (!shadow_fb) { - /* The application is already updating the visible video memory */ - return; - } - - if (cache_vinfo.bits_per_pixel != 16) { - SDL_SetError("Shadow copy only implemented for 16 bpp"); - return; - } - - for (i = 0; i < numrects; i++) { - int x1, y1, x2, y2; - int scr_x1, scr_y1, scr_x2, scr_y2; - int sha_x1, sha_y1; - int shadow_right_delta; /* Address change when moving right in dest */ - int shadow_down_delta; /* Address change when moving down in dest */ - char *src_start; - char *dst_start; - - x1 = rects[i].x; - y1 = rects[i].y; - x2 = x1 + rects[i].w; - y2 = y1 + rects[i].h; - - if (x1 < 0) { - x1 = 0; - } else if (x1 > width) { - x1 = width; - } - if (x2 < 0) { - x2 = 0; - } else if (x2 > width) { - x2 = width; - } - if (y1 < 0) { - y1 = 0; - } else if (y1 > height) { - y1 = height; - } - if (y2 < 0) { - y2 = 0; - } else if (y2 > height) { - y2 = height; - } - if (x2 <= x1 || y2 <= y1) { - continue; - } - - switch (rotate) { - case FBCON_ROTATE_NONE: - sha_x1 = scr_x1 = x1; - sha_y1 = scr_y1 = y1; - scr_x2 = x2; - scr_y2 = y2; - shadow_right_delta = 1; - shadow_down_delta = width; - break; - case FBCON_ROTATE_CCW: - scr_x1 = y1; - scr_y1 = width - x2; - scr_x2 = y2; - scr_y2 = width - x1; - sha_x1 = x2 - 1; - sha_y1 = y1; - shadow_right_delta = width; - shadow_down_delta = -1; - break; - case FBCON_ROTATE_UD: - scr_x1 = width - x2; - scr_y1 = height - y2; - scr_x2 = width - x1; - scr_y2 = height - y1; - sha_x1 = x2 - 1; - sha_y1 = y2 - 1; - shadow_right_delta = -1; - shadow_down_delta = -width; - break; - case FBCON_ROTATE_CW: - scr_x1 = height - y2; - scr_y1 = x1; - scr_x2 = height - y1; - scr_y2 = x2; - sha_x1 = x1; - sha_y1 = y2 - 1; - shadow_right_delta = -width; - shadow_down_delta = 1; - break; - default: - SDL_SetError("Unknown rotation"); - return; - } - - src_start = shadow_mem + - (sha_y1 * width + sha_x1) * bytes_per_pixel; - dst_start = mapped_mem + mapped_offset + scr_y1 * physlinebytes + - scr_x1 * bytes_per_pixel; - - blitFunc((Uint8 *) src_start, - shadow_right_delta, - shadow_down_delta, - (Uint8 *) dst_start, - physlinebytes, - scr_x2 - scr_x1, - scr_y2 - scr_y1); - } -} - -#ifdef VGA16_FBCON_SUPPORT -/* Code adapted with thanks from the XFree86 VGA16 driver! :) */ -#define writeGr(index, value) \ -outb(index, 0x3CE); \ -outb(value, 0x3CF); -#define writeSeq(index, value) \ -outb(index, 0x3C4); \ -outb(value, 0x3C5); - -static void FB_VGA16Update(_THIS, int numrects, SDL_Rect *rects) -{ - SDL_Surface *screen; - int width, height, FBPitch, left, i, j, SRCPitch, phase; - register Uint32 m; - Uint8 s1, s2, s3, s4; - Uint32 *src, *srcPtr; - Uint8 *dst, *dstPtr; - - if ( switched_away ) { - return; /* no hardware access */ - } - - screen = this->screen; - FBPitch = screen->w >> 3; - SRCPitch = screen->pitch >> 2; - - writeGr(0x03, 0x00); - writeGr(0x05, 0x00); - writeGr(0x01, 0x00); - writeGr(0x08, 0xFF); - - while(numrects--) { - left = rects->x & ~7; - width = (rects->w + 7) >> 3; - height = rects->h; - src = (Uint32*)screen->pixels + (rects->y * SRCPitch) + (left >> 2); - dst = (Uint8*)mapped_mem + (rects->y * FBPitch) + (left >> 3); - - if((phase = (long)dst & 3L)) { - phase = 4 - phase; - if(phase > width) phase = width; - width -= phase; - } - - while(height--) { - writeSeq(0x02, 1 << 0); - dstPtr = dst; - srcPtr = src; - i = width; - j = phase; - while(j--) { - m = (srcPtr[1] & 0x01010101) | ((srcPtr[0] & 0x01010101) << 4); - *dstPtr++ = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); - srcPtr += 2; - } - while(i >= 4) { - m = (srcPtr[1] & 0x01010101) | ((srcPtr[0] & 0x01010101) << 4); - s1 = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); - m = (srcPtr[3] & 0x01010101) | ((srcPtr[2] & 0x01010101) << 4); - s2 = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); - m = (srcPtr[5] & 0x01010101) | ((srcPtr[4] & 0x01010101) << 4); - s3 = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); - m = (srcPtr[7] & 0x01010101) | ((srcPtr[6] & 0x01010101) << 4); - s4 = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); - *((Uint32*)dstPtr) = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24); - srcPtr += 8; - dstPtr += 4; - i -= 4; - } - while(i--) { - m = (srcPtr[1] & 0x01010101) | ((srcPtr[0] & 0x01010101) << 4); - *dstPtr++ = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); - srcPtr += 2; - } - - writeSeq(0x02, 1 << 1); - dstPtr = dst; - srcPtr = src; - i = width; - j = phase; - while(j--) { - m = (srcPtr[1] & 0x02020202) | ((srcPtr[0] & 0x02020202) << 4); - *dstPtr++ = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); - srcPtr += 2; - } - while(i >= 4) { - m = (srcPtr[1] & 0x02020202) | ((srcPtr[0] & 0x02020202) << 4); - s1 = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); - m = (srcPtr[3] & 0x02020202) | ((srcPtr[2] & 0x02020202) << 4); - s2 = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); - m = (srcPtr[5] & 0x02020202) | ((srcPtr[4] & 0x02020202) << 4); - s3 = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); - m = (srcPtr[7] & 0x02020202) | ((srcPtr[6] & 0x02020202) << 4); - s4 = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); - *((Uint32*)dstPtr) = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24); - srcPtr += 8; - dstPtr += 4; - i -= 4; - } - while(i--) { - m = (srcPtr[1] & 0x02020202) | ((srcPtr[0] & 0x02020202) << 4); - *dstPtr++ = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); - srcPtr += 2; - } - - writeSeq(0x02, 1 << 2); - dstPtr = dst; - srcPtr = src; - i = width; - j = phase; - while(j--) { - m = (srcPtr[1] & 0x04040404) | ((srcPtr[0] & 0x04040404) << 4); - *dstPtr++ = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); - srcPtr += 2; - } - while(i >= 4) { - m = (srcPtr[1] & 0x04040404) | ((srcPtr[0] & 0x04040404) << 4); - s1 = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); - m = (srcPtr[3] & 0x04040404) | ((srcPtr[2] & 0x04040404) << 4); - s2 = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); - m = (srcPtr[5] & 0x04040404) | ((srcPtr[4] & 0x04040404) << 4); - s3 = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); - m = (srcPtr[7] & 0x04040404) | ((srcPtr[6] & 0x04040404) << 4); - s4 = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); - *((Uint32*)dstPtr) = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24); - srcPtr += 8; - dstPtr += 4; - i -= 4; - } - while(i--) { - m = (srcPtr[1] & 0x04040404) | ((srcPtr[0] & 0x04040404) << 4); - *dstPtr++ = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); - srcPtr += 2; - } - - writeSeq(0x02, 1 << 3); - dstPtr = dst; - srcPtr = src; - i = width; - j = phase; - while(j--) { - m = (srcPtr[1] & 0x08080808) | ((srcPtr[0] & 0x08080808) << 4); - *dstPtr++ = (m >> 27) | (m >> 18) | (m >> 9) | m; - srcPtr += 2; - } - while(i >= 4) { - m = (srcPtr[1] & 0x08080808) | ((srcPtr[0] & 0x08080808) << 4); - s1 = (m >> 27) | (m >> 18) | (m >> 9) | m; - m = (srcPtr[3] & 0x08080808) | ((srcPtr[2] & 0x08080808) << 4); - s2 = (m >> 27) | (m >> 18) | (m >> 9) | m; - m = (srcPtr[5] & 0x08080808) | ((srcPtr[4] & 0x08080808) << 4); - s3 = (m >> 27) | (m >> 18) | (m >> 9) | m; - m = (srcPtr[7] & 0x08080808) | ((srcPtr[6] & 0x08080808) << 4); - s4 = (m >> 27) | (m >> 18) | (m >> 9) | m; - *((Uint32*)dstPtr) = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24); - srcPtr += 8; - dstPtr += 4; - i -= 4; - } - while(i--) { - m = (srcPtr[1] & 0x08080808) | ((srcPtr[0] & 0x08080808) << 4); - *dstPtr++ = (m >> 27) | (m >> 18) | (m >> 9) | m; - srcPtr += 2; - } - - dst += FBPitch; - src += SRCPitch; - } - rects++; - } -} -#endif /* VGA16_FBCON_SUPPORT */ - -void FB_SavePaletteTo(_THIS, int palette_len, __u16 *area) -{ - struct fb_cmap cmap; - - cmap.start = 0; - cmap.len = palette_len; - cmap.red = &area[0*palette_len]; - cmap.green = &area[1*palette_len]; - cmap.blue = &area[2*palette_len]; - cmap.transp = NULL; - ioctl(console_fd, FBIOGETCMAP, &cmap); -} - -void FB_RestorePaletteFrom(_THIS, int palette_len, __u16 *area) -{ - struct fb_cmap cmap; - - cmap.start = 0; - cmap.len = palette_len; - cmap.red = &area[0*palette_len]; - cmap.green = &area[1*palette_len]; - cmap.blue = &area[2*palette_len]; - cmap.transp = NULL; - ioctl(console_fd, FBIOPUTCMAP, &cmap); -} - -static void FB_SavePalette(_THIS, struct fb_fix_screeninfo *finfo, - struct fb_var_screeninfo *vinfo) -{ - int i; - - /* Save hardware palette, if needed */ - if ( finfo->visual == FB_VISUAL_PSEUDOCOLOR ) { - saved_cmaplen = 1<<vinfo->bits_per_pixel; - saved_cmap=(__u16 *)SDL_malloc(3*saved_cmaplen*sizeof(*saved_cmap)); - if ( saved_cmap != NULL ) { - FB_SavePaletteTo(this, saved_cmaplen, saved_cmap); - } - } - - /* Added support for FB_VISUAL_DIRECTCOLOR. - With this mode pixel information is passed through the palette... - Neat fading and gamma correction effects can be had by simply - fooling around with the palette instead of changing the pixel - values themselves... Very neat! - - Adam Meyerowitz 1/19/2000 - ameyerow@optonline.com - */ - if ( finfo->visual == FB_VISUAL_DIRECTCOLOR ) { - __u16 new_entries[3*256]; - - /* Save the colormap */ - saved_cmaplen = 256; - saved_cmap=(__u16 *)SDL_malloc(3*saved_cmaplen*sizeof(*saved_cmap)); - if ( saved_cmap != NULL ) { - FB_SavePaletteTo(this, saved_cmaplen, saved_cmap); - } - - /* Allocate new identity colormap */ - for ( i=0; i<256; ++i ) { - new_entries[(0*256)+i] = - new_entries[(1*256)+i] = - new_entries[(2*256)+i] = (i<<8)|i; - } - FB_RestorePaletteFrom(this, 256, new_entries); - } -} - -static void FB_RestorePalette(_THIS) -{ - /* Restore the original palette */ - if ( saved_cmap ) { - FB_RestorePaletteFrom(this, saved_cmaplen, saved_cmap); - SDL_free(saved_cmap); - saved_cmap = NULL; - } -} - -static int FB_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors) -{ - int i; - __u16 r[256]; - __u16 g[256]; - __u16 b[256]; - struct fb_cmap cmap; - - /* Set up the colormap */ - for (i = 0; i < ncolors; i++) { - r[i] = colors[i].r << 8; - g[i] = colors[i].g << 8; - b[i] = colors[i].b << 8; - } - cmap.start = firstcolor; - cmap.len = ncolors; - cmap.red = r; - cmap.green = g; - cmap.blue = b; - cmap.transp = NULL; - - if( (ioctl(console_fd, FBIOPUTCMAP, &cmap) < 0) || - !(this->screen->flags & SDL_HWPALETTE) ) { - colors = this->screen->format->palette->colors; - ncolors = this->screen->format->palette->ncolors; - cmap.start = 0; - cmap.len = ncolors; - SDL_memset(r, 0, sizeof(r)); - SDL_memset(g, 0, sizeof(g)); - SDL_memset(b, 0, sizeof(b)); - if ( ioctl(console_fd, FBIOGETCMAP, &cmap) == 0 ) { - for ( i=ncolors-1; i>=0; --i ) { - colors[i].r = (r[i]>>8); - colors[i].g = (g[i]>>8); - colors[i].b = (b[i]>>8); - } - } - return(0); - } - return(1); -} - -/* Note: If we are terminated, this could be called in the middle of - another SDL video routine -- notably UpdateRects. -*/ -static void FB_VideoQuit(_THIS) -{ - int i, j; - - if ( this->screen ) { - /* Clear screen and tell SDL not to free the pixels */ - - const char *dontClearPixels = SDL_getenv("SDL_FBCON_DONT_CLEAR"); - - /* If the framebuffer is not to be cleared, make sure that we won't - * display the previous frame when disabling double buffering. */ - if ( dontClearPixels && flip_page == 0 ) { - SDL_memcpy(flip_address[0], flip_address[1], this->screen->pitch * this->screen->h); - } - - if ( !dontClearPixels && this->screen->pixels && FB_InGraphicsMode(this) ) { -#if defined(__powerpc__) || defined(__ia64__) /* SIGBUS when using SDL_memset() ?? */ - Uint8 *rowp = (Uint8 *)this->screen->pixels; - int left = this->screen->pitch*this->screen->h; - while ( left-- ) { *rowp++ = 0; } -#else - SDL_memset(this->screen->pixels,0,this->screen->h*this->screen->pitch); -#endif - } - /* This test fails when using the VGA16 shadow memory */ - if ( ((char *)this->screen->pixels >= mapped_mem) && - ((char *)this->screen->pixels < (mapped_mem+mapped_memlen)) ) { - this->screen->pixels = NULL; - } - } - - /* Clear the lock mutex */ - if ( hw_lock ) { - SDL_DestroyMutex(hw_lock); - hw_lock = NULL; - } - - /* Clean up defined video modes */ - for ( i=0; i<NUM_MODELISTS; ++i ) { - if ( SDL_modelist[i] != NULL ) { - for ( j=0; SDL_modelist[i][j]; ++j ) { - SDL_free(SDL_modelist[i][j]); - } - SDL_free(SDL_modelist[i]); - SDL_modelist[i] = NULL; - } - } - - /* Clean up the memory bucket list */ - FB_FreeHWSurfaces(this); - - /* Close console and input file descriptors */ - if ( console_fd > 0 ) { - /* Unmap the video framebuffer and I/O registers */ - if ( mapped_mem ) { - munmap(mapped_mem, mapped_memlen); - mapped_mem = NULL; - } - if ( mapped_io ) { - munmap(mapped_io, mapped_iolen); - mapped_io = NULL; - } - - /* Restore the original video mode and palette */ - if ( FB_InGraphicsMode(this) ) { - FB_RestorePalette(this); - ioctl(console_fd, FBIOPUT_VSCREENINFO, &saved_vinfo); - } - - /* We're all done with the framebuffer */ - close(console_fd); - console_fd = -1; - } - FB_CloseMouse(this); - FB_CloseKeyboard(this); -} |