merge w3m-img for framebuffer support

* w3mimg/w3mimg.h: created
* w3mimg/x11/x11_w3mimg.c: created
* w3mimg/fb/fb_w3mimg.c: created
* w3mimgsize.c w3mimgdisplay.c: modified
* configure: modified
* XMakefile: modified
* config.h.dist: updated
From: Fumitoshi UKAI  <ukai@debian.or.jp>

w3m-img for framebuffer support
* http://homepage3.nifty.com/slokar/fb/
* w3mimg/fb/fb.c w3mimg/fb/fb.h
  w3mimg/fb/fb_img.c w3mimg/fb/fb_img.h
  w3mimg/fb/fb_gdkpixbuf.c w3mimg/fb/fb_gdkpixbuf.h
  w3mimg/fb/fb_imlib2.c w3mimg/fb/fb_imlib.h
  w3mimg/fb/readme.txt w3mimg/fb/license.txt: added
From: Hiroshi Kawashima <kei@sm.sony.co.jp>

1 files changed, 600 insertions, 0 deletions

diff --git a/w3mimg/fb/fb.c b/w3mimg/fb/fb.c
new file mode 100644
index 0000000..5ac319b
--- /dev/null
+++ b/w3mimg/fb/fb.c
@@ -0,0 +1,600 @@
+/**************************************************************************
+                fb.c 0.2 Copyright (C) 2002, hito
+ **************************************************************************/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <errno.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <linux/fb.h>
+
+#include "fb.h"
+
+#define FB_ENV		"FRAMEBUFFER"
+#define	FB_DEFDEV	"/dev/fb0"
+
+#define FALSE 0
+#define TRUE  1
+
+static struct fb_cmap* fb_cmap_create(struct fb_fix_screeninfo*, struct fb_var_screeninfo *);
+static void  fb_cmap_destroy(struct fb_cmap *cmap);
+static int   fb_fscrn_get(int fbfp, struct fb_fix_screeninfo *scinfo);
+static void *fb_mmap(int fbfp, struct fb_fix_screeninfo *scinfo);
+static int   fb_munmap(void* buf,struct fb_fix_screeninfo *scinfo);
+static int   fb_vscrn_get(int fbfp, struct fb_var_screeninfo *scinfo);
+
+static struct fb_fix_screeninfo	fscinfo;
+static struct fb_var_screeninfo	vscinfo;
+static struct fb_cmap *cmap = NULL;
+static int is_open = FALSE;
+static int fbfp = -1;
+static unsigned char *buf=NULL;
+
+int fb_open(void){
+  char *fbdev = {FB_DEFDEV};
+
+  if(is_open == TRUE)
+    return 1;
+
+  if(getenv(FB_ENV)){
+    fbdev=getenv(FB_ENV);
+  }
+
+  if((fbfp = open(fbdev,O_RDWR))==-1){
+    fprintf(stderr, "open %s error\n",fbdev);
+    goto ERR_END;
+  }
+
+  if(fb_fscrn_get(fbfp,&fscinfo)){
+    goto ERR_END;
+  }
+
+  if(fb_vscrn_get(fbfp,&vscinfo)){
+    goto ERR_END;
+  }
+
+  if((cmap = fb_cmap_create(&fscinfo,&vscinfo)) == (struct fb_cmap*) -1){
+    goto ERR_END;
+  }
+
+  if(!(buf = fb_mmap(fbfp,&fscinfo))){
+    fprintf(stderr, "Can't allocate memory.\n");
+    goto ERR_END;
+  }
+
+  if(fscinfo.type!=FB_TYPE_PACKED_PIXELS){
+    fprintf(stderr, "This type of framebuffer is not supported.\n");
+    goto ERR_END;
+  }
+
+    /*
+  if(fscinfo.visual == FB_VISUAL_PSEUDOCOLOR){
+    printf("FB_VISUAL_PSEUDOCOLOR\n");
+    if(vscinfo.bits_per_pixel!=8){
+      fprintf(stderr, "未対応フレームバッファ\n");
+      goto ERR_END;
+    }
+
+    if(fb_cmap_get(fbfp,cmap)){
+      fprintf(stderr, "カラーマップ獲得失敗\n");
+      //      fb_cmap_destroy(cmap);
+      goto ERR_END;
+    }
+    //    fb_cmap_disp(cmap);
+
+    if(cmap->len <(LINUX_LOGO_COLORS + LOGO_COLOR_OFFSET)){
+      fprintf(stderr, "色の割付領域が不足しています\n");
+      goto ERR_END;
+    }
+
+    cmap->start = LOGO_COLOR_OFFSET;
+    cmap->len   = LINUX_LOGO_COLORS;
+
+    for(lp = 0; lp < LINUX_LOGO_COLORS; lp++){
+      if(cmap->red){
+	*(cmap->red+lp) = (linux_logo_red[lp]<<CHAR_BIT)+linux_logo_red[lp];
+      }
+      if(cmap->green){
+	*(cmap->green+lp)= (linux_logo_green[lp]<<CHAR_BIT)+linux_logo_green[lp];
+      }
+      if(cmap->blue){
+	*(cmap->blue+lp)= (linux_logo_blue[lp]<<CHAR_BIT)+linux_logo_blue[lp];
+      }
+    }
+    if(fb_cmap_set(fbfp,cmap)){
+      fb_cmap_destroy(cmap);
+      fprintf(stderr, "カラーマップ獲得失敗\n");
+      goto ERR_END;
+    }
+  }
+    */
+
+  if(!(fscinfo.visual == FB_VISUAL_TRUECOLOR &&
+     (vscinfo.bits_per_pixel == 15 ||
+      vscinfo.bits_per_pixel == 16 ||
+      vscinfo.bits_per_pixel == 24 ||
+      vscinfo.bits_per_pixel == 32))){
+    fprintf(stderr,"This type of framebuffer is not supported.\n");
+    goto ERR_END;
+  }
+
+  is_open = TRUE;
+  return 0;
+
+ ERR_END:
+  fb_close();
+  return 1;
+}
+
+void fb_close(void)
+{
+  if(is_open != TRUE)
+    return;
+
+  if(cmap != NULL){
+    fb_cmap_destroy(cmap);
+    cmap = NULL;
+  }
+  if(buf != NULL){
+    fb_munmap(buf,&fscinfo);
+    buf = NULL;
+  }
+
+  if(fbfp >= 0){
+    close(fbfp);
+  }
+
+  is_open = FALSE;
+}
+
+void fb_pset(int x, int y, int r, int g, int b)
+{
+  unsigned long work;
+  int offset;
+  static size_t size = 0;
+
+  if(is_open != TRUE || x >= vscinfo.xres || y >= vscinfo.yres)
+    return;
+
+  if(size == 0)
+    size = (vscinfo.bits_per_pixel + 7) / CHAR_BIT;
+
+  offset = fscinfo.line_length * y + size * x;
+
+  if(offset >= fscinfo.smem_len)
+    return;
+
+  work=
+    ((r >> (CHAR_BIT - vscinfo.red.length  )) << vscinfo.red.offset)+
+    ((g >> (CHAR_BIT - vscinfo.green.length)) << vscinfo.green.offset)+
+    ((b >> (CHAR_BIT - vscinfo.blue.length )) << vscinfo.blue.offset);
+  memcpy(buf + offset, &work, size);
+}
+
+int fb_get_color(int x, int y, int *r, int *g, int *b)
+{
+  unsigned long work = 0;
+  int offset;
+  static size_t size = 0;
+
+  if(is_open != TRUE || x >= vscinfo.xres || y >= vscinfo.yres)
+    return 1;
+
+  if(size == 0)
+    size = (vscinfo.bits_per_pixel + 7) / CHAR_BIT;
+
+  offset = fscinfo.line_length * y + size * x;
+  if(offset >= fscinfo.smem_len)
+    return 1;
+
+  memcpy(&work, buf + offset, size);
+
+  *r = ((work >> vscinfo.red.offset) & (0x000000ff >> (CHAR_BIT - vscinfo.red.length)))
+	      << (CHAR_BIT - vscinfo.red.length);
+  *g = ((work >> vscinfo.green.offset) & (0x000000ff >> (CHAR_BIT - vscinfo.green.length)))
+	      <<(CHAR_BIT - vscinfo.green.length);
+  *b = ((work >> vscinfo.blue.offset)  & (0x000000ff >> (CHAR_BIT - vscinfo.blue.length)))
+	      << (CHAR_BIT - vscinfo.blue.length);
+  return 0;
+}
+
+void fb_clear(void)
+{
+  if(is_open != TRUE)
+    return;
+
+  memset(buf, 0, (vscinfo.xres * vscinfo.yres * vscinfo.bits_per_pixel) / CHAR_BIT);
+}
+
+int fb_width(void)
+{
+   if(is_open != TRUE)
+    return 0;
+
+   return vscinfo.xres;
+}
+
+int fb_height(void)
+{
+   if(is_open != TRUE)
+    return 0;
+
+   return vscinfo.yres;
+}
+
+void fb_cmap_disp(void)
+{
+  int lp;
+
+  if(is_open != TRUE)
+    return;
+
+  printf("cmap DUMP\n");
+  printf("start		:[%08x]\n", cmap->start);
+  printf("len		:[%08x]\n", cmap->len);
+  printf("red		:[%8p]\n", cmap->red);
+  if(cmap->red){
+    for(lp=0;lp<cmap->len;lp++){
+      if((lp+1)%16==0) printf("%04x\n",*(cmap->red+lp));
+      else printf("%04x ",*(cmap->red+lp));
+    }
+    if(lp%16) printf("\n");
+  }
+  printf("green		:[%8p]\n",cmap->green);
+  if(cmap->green){
+    for(lp=0;lp<cmap->len;lp++){
+      if((lp+1)%16==0) printf("%04x\n",*(cmap->green+lp));
+      else printf("%04x ",*(cmap->green+lp));
+    }
+    if(lp%16) printf("\n");
+  }
+  printf("blue		:[%8p]\n",cmap->blue);
+  if(cmap->blue){
+    for(lp=0;lp<cmap->len;lp++){
+      if((lp+1)%16==0) printf("%04x\n",*(cmap->blue+lp));
+      else printf("%04x ",*(cmap->blue+lp));
+    }
+    if(lp%16) printf("\n");
+  }
+  printf("transp		:[%8p]\n",cmap->transp);
+  if(cmap->transp){
+    for(lp=0;lp<cmap->len;lp++){
+      if((lp+1)%16==0) printf("%04x\n",*(cmap->transp+lp));
+      else printf("%04x ",*(cmap->transp+lp));
+    }
+    if(lp%16) printf("\n");
+  }
+  return;
+}
+
+
+void fb_fscrn_disp(void)
+{
+  if(is_open != TRUE)
+    return;
+
+  printf("scinfo[%8p] DUMP\n",      &fscinfo);
+  printf("id		:[%s]\n",    fscinfo.id);
+  printf("smem_start	:[%08lx]\n", fscinfo.smem_start);
+  printf("smem_len	:[%d]\n",    fscinfo.smem_len);
+  printf("type		:[%d] ",     fscinfo.type);
+  switch(fscinfo.type){
+  case FB_TYPE_PACKED_PIXELS:
+    printf("FB_TYPE_PACKED_PIXELS\n");break;
+  case FB_TYPE_PLANES:
+    printf("FB_TYPE_PLANES\n");break;
+  case FB_TYPE_INTERLEAVED_PLANES:
+    printf("FB_TYPE_INTERLEAVED_PLANES\n");break;
+  case FB_TYPE_TEXT:
+    printf("FB_TYPE_TEXT\n");break;
+  default:printf("Unknown type.\n");
+  }
+  printf("type_aux	:[%d] ",fscinfo.type_aux);
+  switch(fscinfo.type_aux){
+  case FB_AUX_TEXT_MDA:
+    printf("FB_AUX_TEXT_MDA\n");break;
+  case FB_AUX_TEXT_CGA:
+    printf("FB_AUX_TEXT_CGA\n");break;
+  case FB_AUX_TEXT_S3_MMIO:
+    printf("FB_AUX_TEXT_S3_MMIO\n");break;
+  case FB_AUX_TEXT_MGA_STEP16:
+    printf("FB_AUX_TEXT_MGA_STEP16\n");break;
+  case FB_AUX_TEXT_MGA_STEP8:
+    printf("FB_AUX_TEXT_MGA_STEP8\n");break;
+  default:printf("Unknown type_aux.\n");
+  }
+  printf("visual		:[%d] ",fscinfo.visual);
+  switch(fscinfo.visual){
+  case FB_VISUAL_MONO01:
+    printf("FB_VISUAL_MONO01\n");break;
+  case FB_VISUAL_MONO10:
+    printf("FB_VISUAL_MONO10\n");break;
+  case FB_VISUAL_TRUECOLOR:
+    printf("FB_VISUAL_TRUECOLOR\n");break;
+  case FB_VISUAL_PSEUDOCOLOR:
+    printf("FB_VISUAL_PSEUDOCOLOR\n");break;
+  case FB_VISUAL_DIRECTCOLOR:
+    printf("FB_VISUAL_DIRECTCOLOR\n");break;
+  case FB_VISUAL_STATIC_PSEUDOCOLOR:
+    printf("FB_VISUAL_STATIC_PSEUDOCOLOR\n");break;
+  default:printf("Unknown Visual mode.\n");
+  }
+  printf("xpanstep	:[%d]\n",fscinfo.xpanstep);
+  printf("ypanstep	:[%d]\n",fscinfo.ypanstep);
+  printf("ywrapstep	:[%d]\n",fscinfo.ywrapstep);
+  printf("line_length	:[%d]\n",fscinfo.line_length);
+  printf("mmio_start	:[%08lx]\n",fscinfo.mmio_start);
+  printf("mmio_len	:[%d]\n",fscinfo.mmio_len);
+  printf("accel		:[%d] ",fscinfo.accel);
+  switch(fscinfo.accel){
+  case FB_ACCEL_NONE:
+    printf("FB_ACCEL_NONE\n");break;
+  case FB_ACCEL_ATARIBLITT:
+    printf("FB_ACCEL_ATARIBLITT\n");break;
+  case FB_ACCEL_AMIGABLITT:
+    printf("FB_ACCEL_AMIGABLITT\n");break;
+  case FB_ACCEL_S3_TRIO64:
+    printf("FB_ACCEL_S3_TRIO64\n");break;
+  case FB_ACCEL_NCR_77C32BLT:
+    printf("FB_ACCEL_NCR_77C32BLT\n");break;
+  case FB_ACCEL_S3_VIRGE:
+    printf("FB_ACCEL_S3_VIRGE\n");break;
+  case FB_ACCEL_ATI_MACH64GX:
+    printf("FB_ACCEL_ATI_MACH64GX\n");break;
+  case FB_ACCEL_DEC_TGA:
+    printf("FB_ACCEL_DEC_TGA\n");break;
+  case FB_ACCEL_ATI_MACH64CT:
+    printf("FB_ACCEL_ATI_MACH64CT\n");break;
+  case FB_ACCEL_ATI_MACH64VT:
+    printf("FB_ACCEL_ATI_MACH64VT\n");break;
+  case FB_ACCEL_ATI_MACH64GT:
+    printf("FB_ACCEL_ATI_MACH64GT\n");break;
+  case FB_ACCEL_SUN_CREATOR:
+    printf("FB_ACCEL_SUN_CREATOR\n");break;
+  case FB_ACCEL_SUN_CGSIX:
+    printf("FB_ACCEL_SUN_CGSIX\n");break;
+  case FB_ACCEL_SUN_LEO:
+    printf("FB_ACCEL_SUN_LEO\n");break;
+  case FB_ACCEL_IMS_TWINTURBO:
+    printf("FB_ACCEL_IMS_TWINTURBO\n");break;
+  case FB_ACCEL_3DLABS_PERMEDIA2:
+    printf("FB_ACCEL_3DLABS_PERMEDIA2\n");break;
+  case FB_ACCEL_MATROX_MGA2064W:
+    printf("FB_ACCEL_MATROX_MGA2064W\n");break;
+  case FB_ACCEL_MATROX_MGA1064SG:
+    printf("FB_ACCEL_MATROX_MGA1064SG\n");break;
+  case FB_ACCEL_MATROX_MGA2164W:
+    printf("FB_ACCEL_MATROX_MGA2164W\n");break;
+  case FB_ACCEL_MATROX_MGA2164W_AGP:
+    printf("FB_ACCEL_MATROX_MGA2164W_AGP\n");break;
+  case FB_ACCEL_MATROX_MGAG100:
+    printf("FB_ACCEL_MATROX_MGAG100\n");break;
+  case FB_ACCEL_MATROX_MGAG200:
+    printf("FB_ACCEL_MATROX_MGAG200\n");break;
+  case FB_ACCEL_SUN_CG14:
+    printf("FB_ACCEL_SUN_CG14\n");break;
+  case FB_ACCEL_SUN_BWTWO:
+    printf("FB_ACCEL_SUN_BWTWO\n");break;
+  case FB_ACCEL_SUN_CGTHREE:
+    printf("FB_ACCEL_SUN_CGTHREE\n");break;
+  case FB_ACCEL_SUN_TCX:
+    printf("FB_ACCEL_SUN_TCX\n");break;
+  default:printf("Unknown Visual mode.\n");
+  }
+  return;
+}
+
+void fb_vscrn_disp(void)
+{
+  if(is_open != TRUE)
+    return;
+  printf("vscinfo DUMP\n");
+  printf("xres		:[%d]\n",vscinfo.xres);
+  printf("yres		:[%d]\n",vscinfo.yres);
+  printf("xres_virtual	:[%d]\n",vscinfo.xres_virtual);
+  printf("yres_virtual	:[%d]\n",vscinfo.yres_virtual);
+  printf("xoffset		:[%d]\n",vscinfo.xoffset);
+  printf("yoffset		:[%d]\n",vscinfo.yoffset);
+  printf("bits_per_pixel	:[%d]\n",vscinfo.bits_per_pixel);
+  printf("grayscale	:[%d]\n",vscinfo.grayscale);
+  printf("red.offset	:[%d]\n",vscinfo.red.offset);
+  printf("red.length	:[%d]\n",vscinfo.red.length);
+  printf("red.msb_right	:[%d]\n",vscinfo.red.msb_right);
+  printf("green.offset	:[%d]\n",vscinfo.green.offset);
+  printf("green.length	:[%d]\n",vscinfo.green.length);
+  printf("green.msb_right	:[%d]\n",vscinfo.green.msb_right);
+  printf("blue.offset	:[%d]\n",vscinfo.blue.offset);
+  printf("blue.length	:[%d]\n",vscinfo.blue.length);
+  printf("blue.msb_right	:[%d]\n",vscinfo.blue.msb_right);
+  printf("transp.offset	:[%d]\n",vscinfo.transp.offset);
+  printf("transp.length	:[%d]\n",vscinfo.transp.length);
+  printf("transp.msb_right:[%d]\n",vscinfo.transp.msb_right);
+  printf("nonstd		:[%d]\n",vscinfo.nonstd);
+  printf("activate	:[%d]\n",vscinfo.activate);
+  printf("height		:[%d]\n",vscinfo.height);
+  printf("width		:[%d]\n",vscinfo.width);
+  printf("accel_flags	:[%d]\n",vscinfo.accel_flags);
+  printf("pixclock	:[%d]\n",vscinfo.pixclock);
+  printf("left_margin	:[%d]\n",vscinfo.left_margin);
+  printf("right_margin	:[%d]\n",vscinfo.right_margin);
+  printf("upper_margin	:[%d]\n",vscinfo.upper_margin);
+  printf("lower_margin	:[%d]\n",vscinfo.lower_margin);
+  printf("hsync_len	:[%d]\n",vscinfo.hsync_len);
+  printf("vsync_len	:[%d]\n",vscinfo.vsync_len);
+  printf("sync		:[%d]\n",vscinfo.sync);
+  printf("vmode		:[%d]\n",vscinfo.vmode);
+  return;
+}
+
+/********* static functions **************/
+
+/*
+	(struct fb_cmap)デバイスに依存しないカラーマップ情報
+
+	fb_cmap_create()	新規のカラーマップ情報
+	fb_cmap_destroy()	カラーマップ情報の破棄
+	fb_cmap_disp()		情報の表示
+	fb_cmap_get()		情報の獲得
+	fb_cmap_set()		情報の設定
+*/
+
+#define	LUT_MAX		(256)
+
+static struct fb_cmap* fb_cmap_create(struct fb_fix_screeninfo* fscinfo,
+				struct fb_var_screeninfo *vscinfo)
+{
+	struct	fb_cmap*	cmap;
+	int			cmaplen=LUT_MAX;
+
+	/* カラーマップの存在チェック */
+	if(fscinfo->visual==FB_VISUAL_MONO01 ||
+		fscinfo->visual==FB_VISUAL_MONO10 ||
+		fscinfo->visual==FB_VISUAL_TRUECOLOR) return NULL;
+
+	cmap=(struct fb_cmap*)malloc(sizeof(struct fb_cmap));
+	if(!cmap){
+		perror("cmap malloc error\n");
+		return (struct fb_cmap*)-1;
+	}
+	memset(cmap,0,sizeof(struct fb_cmap));
+
+	/* 各分色が存在しそうだったらカラーマップ用の領域を確保 */
+	if(vscinfo->red.length){
+		cmap->red=(__u16*)malloc(sizeof(__u16)*cmaplen);
+		if(!cmap->red){
+			perror("red lut malloc error\n");
+			return (struct fb_cmap*)-1;
+		}
+	}
+	if(vscinfo->green.length){
+		cmap->green=(__u16*)malloc(sizeof(__u16)*cmaplen);
+		if(!cmap->green){
+			if(vscinfo->red.length) free(cmap->red);
+			perror("green lut malloc error\n");
+			return (struct fb_cmap*)-1;
+		}
+	}
+	if(vscinfo->blue.length){
+		cmap->blue=(__u16*)malloc(sizeof(__u16)*cmaplen);
+		if(!cmap->blue){
+			if(vscinfo->red.length) free(cmap->red);
+			if(vscinfo->green.length) free(cmap->green);
+			perror("blue lut malloc error\n");
+			return (struct fb_cmap*)-1;
+		}
+	}
+	if(vscinfo->transp.length){
+		cmap->transp=(__u16*)malloc(sizeof(__u16)*cmaplen);
+		if(!cmap->transp){
+			if(vscinfo->red.length) free(cmap->red);
+			if(vscinfo->green.length) free(cmap->green);
+			if(vscinfo->blue.length) free(cmap->blue);
+			perror("transp lut malloc error\n");
+			return (struct fb_cmap*)-1;
+		}
+	}
+	cmap->len=cmaplen;
+	return cmap;
+}
+
+static void fb_cmap_destroy(struct fb_cmap* cmap)
+{
+	if(cmap->red) free(cmap->red);
+	if(cmap->green) free(cmap->green);
+	if(cmap->blue) free(cmap->blue);
+	if(cmap->transp) free(cmap->transp);
+	free(cmap);
+}
+
+/*
+static int fb_cmap_get(int fbfp,struct fb_cmap* cmap)
+{
+	if(ioctl(fbfp,FBIOGETCMAP,cmap)){
+		perror("ioctl FBIOGETCMAP error\n");
+		return -1;
+	}
+	return 0;
+}
+
+static int fb_cmap_set(int fbfp,struct fb_cmap* cmap)
+{
+	if(ioctl(fbfp,FBIOPUTCMAP,cmap)){
+		perror("ioctl FBIOPUTCMAP error\n");
+		return -1;
+	}
+	return 0;
+}
+*/
+/*
+	フレームバッファに対するアクセス
+
+	fb_mmap()		フレームバッファのメモリ上へのマップ
+	fb_munmap()		フレームバッファのメモリ上からのアンマップ
+*/
+
+static void *fb_mmap(int fbfp, struct fb_fix_screeninfo* scinfo)
+{
+  void	*buf;
+  if((buf=(unsigned char*)
+      mmap(NULL, scinfo->smem_len, PROT_READ|PROT_WRITE,MAP_SHARED, fbfp, (off_t)0))
+     ==MAP_FAILED){
+    perror("mmap error");
+    return NULL;
+  }
+  return buf;
+}
+
+static int fb_munmap(void* buf,struct fb_fix_screeninfo* scinfo)
+{
+	return munmap(buf,scinfo->smem_len);
+}
+
+/*
+	(struct fb_fix_screeninfo)デバイスに依存しない固定された情報
+
+	fb_fscrn_disp()		情報の表示
+	fb_fscrn_get()		情報の獲得
+*/
+
+
+static int fb_fscrn_get(int fbfp,struct fb_fix_screeninfo* scinfo)
+{
+	if(ioctl(fbfp,FBIOGET_FSCREENINFO,scinfo)){
+		perror("ioctl FBIOGET_FSCREENINFO error\n");
+		return -1;
+	}
+	return 0;
+}
+
+/*
+	(struct fb_var_screeninfo)デバイスに依存しない変更可能な情報
+
+	fb_vscrn_disp()		情報の表示
+	fb_vscrn_get()		情報の獲得
+	fb_vscrn_set()		情報の設定
+*/
+
+
+static int fb_vscrn_get(int fbfp,struct fb_var_screeninfo* scinfo)
+{
+	if(ioctl(fbfp,FBIOGET_VSCREENINFO,scinfo)){
+		perror("ioctl FBIOGET_VSCREENINFO error\n");
+		return -1;
+	}
+	return 0;
+}
+
+/*
+static int fb_vscrn_set(int fbfp,struct fb_var_screeninfo* scinfo)
+{
+	if(ioctl(fbfp,FBIOPUT_VSCREENINFO,scinfo)){
+		perror("ioctl FBIOPUT_VSCREENINFO error\n");
+		return -1;
+	}
+	return 0;
+}
+*/