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w3m/w3mimg/fb/fb.c

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/* $Id: fb.c,v 1.16 2003/07/13 16:19:10 ukai Exp $ */
/**************************************************************************
fb.c 0.3 Copyright (C) 2002, hito
**************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <limits.h>
#include <errno.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#if defined(__linux__)
#include <linux/fb.h>
#elif defined(__FreeBSD__)
#include <sys/fbio.h>
#endif
#if defined(__FreeBSD__)
#include <sys/types.h>
#include <machine/param.h>
#endif
#include "fb.h"
#define FB_ENV "FRAMEBUFFER"
#if defined(__linux__)
#define FB_DEFDEV "/dev/fb0"
#elif defined(__FreeBSD__)
#define FB_DEFDEV "/dev/ttyv0"
#endif
#define MONO_OFFSET_8BIT 0x40
#define COLORS_MONO_8BIT 0x40
#define MONO_MASK_8BIT 0xFC
#define MONO_SHIFT_8BIT 2
#define COLOR_OFFSET_8BIT 0x80
#define COLORS_8BIT 0x80
#define RED_MASK_8BIT 0xC0
#define GREEN_MASK_8BIT 0xE0
#define BLUE_MASK_8BIT 0xC0
#define RED_SHIFT_8BIT 1
#define GREEN_SHIFT_8BIT 3
#define BLUE_SHIFT_8BIT 6
#define FALSE 0
#define TRUE 1
#define IMAGE_SIZE_MAX 10000
#if defined(__linux__)
static struct fb_cmap *fb_cmap_create(struct fb_fix_screeninfo *,
struct fb_var_screeninfo *);
#elif defined(__FreeBSD__)
static video_color_palette_t *fb_cmap_create(video_info_t *video_info,
video_adapter_info_t *video_adapter_info);
#endif
#if defined(__linux__)
static void fb_cmap_destroy(struct fb_cmap *cmap);
#elif defined(__FreeBSD__)
static void fb_cmap_destroy(video_color_palette_t *cmap);
#endif
#if defined(__linux__)
static int fb_fscrn_get(int fbfp, struct fb_fix_screeninfo *scinfo);
#endif
#if defined(__linux__)
static void *fb_mmap(int fbfp, struct fb_fix_screeninfo *scinfo);
#elif defined(__FreeBSD__)
static void *fb_mmap(int fbfp, video_adapter_info_t *video_adapter_info);
#endif
#if defined(__linux__)
static int fb_munmap(void *buf, struct fb_fix_screeninfo *scinfo);
#elif defined(__FreeBSD__)
static int fb_munmap(void *buf, video_adapter_info_t *video_adapter_info);
#endif
#if defined(__linux__)
static int fb_vscrn_get(int fbfp, struct fb_var_screeninfo *scinfo);
#endif
#if defined(__linux__)
static int fb_cmap_set(int fbfp, struct fb_cmap *cmap);
#elif defined(__FreeBSD__)
static int fb_cmap_set(int fbfp, video_color_palette_t *cmap);
#endif
#if defined(__linux__)
static int fb_cmap_get(int fbfp, struct fb_cmap *cmap);
#elif defined(__FreeBSD__)
static int fb_cmap_get(int fbfp, video_color_palette_t *cmap);
#endif
static int fb_cmap_init(void);
static int fb_get_cmap_index(int r, int g, int b);
static unsigned long fb_get_packed_color(int r, int g, int b);
#if defined(__FreeBSD__)
static int fb_video_mode_get(int fbfp, int *video_mode);
static int fb_video_info_get(int fbfp, video_info_t *video_info);
static int fb_video_adapter_info_get(int fbfp, video_adapter_info_t *video_adapter_info);
#endif
#if defined(__linux__)
static struct fb_fix_screeninfo fscinfo;
static struct fb_var_screeninfo vscinfo;
#elif defined(__FreeBSD__)
static video_info_t video_info;
static video_adapter_info_t video_adapter_info;
#endif
#if defined(__linux__)
static struct fb_cmap *cmap = NULL, *cmap_org = NULL;
#elif defined(__FreeBSD__)
static video_color_palette_t *cmap = NULL, *cmap_org = NULL;
#endif
static int is_open = FALSE;
static int fbfp = -1;
static size_t pixel_size = 0;
static unsigned char *buf = NULL;
int
fb_open(void)
{
char *fbdev = { FB_DEFDEV };
#if defined(__FreeBSD__)
int video_mode;
#endif
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 defined(__linux__)
if (fb_fscrn_get(fbfp, &fscinfo)) {
goto ERR_END;
}
if (fb_vscrn_get(fbfp, &vscinfo)) {
goto ERR_END;
}
#elif defined(__FreeBSD__)
if (fb_video_mode_get(fbfp, &video_mode)) {
goto ERR_END;
}
video_info.vi_mode = video_mode;
if (fb_video_info_get(fbfp, &video_info)) {
goto ERR_END;
}
if (fb_video_adapter_info_get(fbfp, &video_adapter_info)) {
goto ERR_END;
}
if (!(video_info.vi_flags & V_INFO_GRAPHICS) ||
!(video_info.vi_flags & V_INFO_LINEAR)) {
goto ERR_END;
}
#endif
#if defined(__linux__)
if ((cmap = fb_cmap_create(&fscinfo, &vscinfo)) == (struct fb_cmap *)-1) {
goto ERR_END;
}
#elif defined(__FreeBSD__)
if ((cmap = fb_cmap_create(&video_info, &video_adapter_info)) == (video_color_palette_t *)-1) {
goto ERR_END;
}
#endif
#if defined(__linux__)
if (!(buf = fb_mmap(fbfp, &fscinfo))) {
fprintf(stderr, "Can't allocate memory.\n");
goto ERR_END;
}
#elif defined(__FreeBSD__)
if (!(buf = fb_mmap(fbfp, &video_adapter_info))) {
fprintf(stderr, "Can't allocate memory.\n");
goto ERR_END;
}
#endif
#if defined(__linux__)
if (fscinfo.type != FB_TYPE_PACKED_PIXELS) {
fprintf(stderr, "This type of framebuffer is not supported.\n");
goto ERR_END;
}
#elif defined(__FreeBSD__)
if (!(video_info.vi_mem_model == V_INFO_MM_PACKED ||
video_info.vi_mem_model == V_INFO_MM_DIRECT)) {
fprintf(stderr, "This type of framebuffer is not supported.\n");
goto ERR_END;
}
#endif
#if defined(__linux__)
if (fscinfo.visual == FB_VISUAL_PSEUDOCOLOR && vscinfo.bits_per_pixel == 8) {
#elif defined(__FreeBSD__)
if (video_adapter_info.va_flags & V_ADP_PALETTE &&
video_info.vi_mem_model == V_INFO_MM_PACKED &&
video_info.vi_depth == 8) {
#endif
if (fb_cmap_get(fbfp, cmap)) {
fprintf(stderr, "Can't get color map.\n");
fb_cmap_destroy(cmap);
cmap = NULL;
goto ERR_END;
}
if (fb_cmap_init())
goto ERR_END;
pixel_size = 1;
}
#if defined(__linux__)
else if ((fscinfo.visual == FB_VISUAL_TRUECOLOR ||
fscinfo.visual == FB_VISUAL_DIRECTCOLOR) &&
(vscinfo.bits_per_pixel == 15 ||
vscinfo.bits_per_pixel == 16 ||
vscinfo.bits_per_pixel == 24 || vscinfo.bits_per_pixel == 32)) {
pixel_size = (vscinfo.bits_per_pixel + 7) / CHAR_BIT;
#elif defined(__FreeBSD__)
else if (video_info.vi_mem_model == V_INFO_MM_DIRECT &&
(video_info.vi_depth == 15 ||
video_info.vi_depth == 16 ||
video_info.vi_depth == 24 || video_info.vi_depth == 32)) {
pixel_size = (video_info.vi_depth + 7) / CHAR_BIT;
#endif
}
else {
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 (cmap_org != NULL) {
fb_cmap_set(fbfp, cmap_org);
fb_cmap_destroy(cmap_org);
cmap = NULL;
}
if (buf != NULL) {
#if defined(__linux__)
fb_munmap(buf, &fscinfo);
#elif defined(__FreeBSD__)
fb_munmap(buf, &video_adapter_info);
#endif
buf = NULL;
}
if (fbfp >= 0) {
close(fbfp);
}
is_open = FALSE;
}
/*********** fb_image_* ***********/
FB_IMAGE *
fb_image_new(int width, int height)
{
FB_IMAGE *image;
if (is_open != TRUE)
return NULL;
if (width > IMAGE_SIZE_MAX || height > IMAGE_SIZE_MAX || width < 1
|| height < 1)
return NULL;
image = malloc(sizeof(*image));
if (image == NULL)
return NULL;
image->data = calloc(sizeof(*(image->data)), width * height * pixel_size);
if (image->data == NULL) {
free(image);
return NULL;
}
image->num = 1;
image->id = 0;
image->delay = 0;
image->width = width;
image->height = height;
image->rowstride = width * pixel_size;
image->len = width * height * pixel_size;
return image;
}
void
fb_image_free(FB_IMAGE * image)
{
if (image == NULL)
return;
if (image->data != NULL)
free(image->data);
free(image);
}
void
fb_image_pset(FB_IMAGE * image, int x, int y, int r, int g, int b)
{
unsigned long work;
if (image == NULL || is_open != TRUE || x >= image->width
|| y >= image->height)
return;
work = fb_get_packed_color(r, g, b);
memcpy(image->data + image->rowstride * y + pixel_size * x, &work,
pixel_size);
}
void
fb_image_fill(FB_IMAGE * image, int r, int g, int b)
{
unsigned long work;
int offset;
if (image == NULL || is_open != TRUE)
return;
work = fb_get_packed_color(r, g, b);
for (offset = 0; offset < image->len; offset += pixel_size) {
memcpy(image->data + offset, &work, pixel_size);
}
}
int
fb_image_draw(FB_IMAGE * image, int x, int y, int sx, int sy, int width,
int height)
{
int i, offset_fb, offset_img;
if (image == NULL || is_open != TRUE ||
sx > image->width || sy > image->height ||
x > fb_width() || y > fb_height())
return 1;
if (sx + width > image->width)
width = image->width - sx;
if (sy + height > image->height)
height = image->height - sy;
if (x + width > fb_width())
width = fb_width() - x;
if (y + height > fb_height())
height = fb_height() - y;
#if defined(__linux__)
offset_fb = fscinfo.line_length * y + pixel_size * x;
#elif defined(__FreeBSD__)
offset_fb = video_adapter_info.va_line_width * y + pixel_size * x;
#endif
offset_img = image->rowstride * sy + pixel_size * sx;
for (i = 0; i < height; i++) {
memcpy(buf + offset_fb, image->data + offset_img, pixel_size * width);
#if defined(__linux__)
offset_fb += fscinfo.line_length;
#elif defined(__FreeBSD__)
offset_fb += video_adapter_info.va_line_width;
#endif
offset_img += image->rowstride;
}
return 0;
}
void
fb_image_copy(FB_IMAGE * dest, FB_IMAGE * src)
{
if (dest == NULL || src == NULL)
return;
if (dest->len != src->len)
return;
memcpy(dest->data, src->data, src->len);
}
/*********** fb_frame_* ***********/
FB_IMAGE **
fb_frame_new(int w, int h, int n)
{
FB_IMAGE **frame;
int i, error = 0;
if (w > IMAGE_SIZE_MAX || h > IMAGE_SIZE_MAX || w < 1 || h < 1 || n < 1)
return NULL;
frame = malloc(sizeof(*frame) * n);
if (frame == NULL)
return NULL;
for (i = 0; i < n; i++) {
frame[i] = fb_image_new(w, h);
frame[i]->num = n;
frame[i]->id = i;
frame[i]->delay = 1000;
if (frame[i] == NULL)
error = 1;
}
if (error) {
fb_frame_free(frame);
return NULL;
}
return frame;
}
void
fb_frame_free(FB_IMAGE ** frame)
{
int i, n;
if (frame == NULL)
return;
n = frame[0]->num;
for (i = 0; i < n; i++) {
fb_image_free(frame[i]);
}
free(frame);
}
int
fb_width(void)
{
if (is_open != TRUE)
return 0;
#if defined(__linux__)
return vscinfo.xres;
#elif defined(__FreeBSD__)
return video_info.vi_width;
#endif
}
int
fb_height(void)
{
if (is_open != TRUE)
return 0;
#if defined(__linux__)
return vscinfo.yres;
#elif defined(__FreeBSD__)
return video_info.vi_height;
#endif
}
int
fb_clear(int x, int y, int w, int h, int r, int g, int b)
{
int i, offset_fb;
static int rr = -1, gg = -1, bb = -1;
static char *tmp = NULL;
if (is_open != TRUE || x > fb_width() || y > fb_height())
return 1;
if (x < 0)
x = 0;
if (y < 0)
y = 0;
if (x + w > fb_width())
w = fb_width() - x;
if (y + h > fb_height())
h = fb_height() - y;
if (tmp == NULL) {
#if defined(__linux__)
tmp = malloc(fscinfo.line_length);
#elif defined(__FreeBSD__)
tmp = malloc(video_adapter_info.va_line_width);
#endif
if (tmp == NULL)
return 1;
}
if (rr != r || gg != g || bb != b) {
unsigned long work;
int ww = fb_width();
work = fb_get_packed_color(r, g, b);
for (i = 0; i < ww; i++)
memcpy(tmp + pixel_size * i, &work, pixel_size);
rr = r;
gg = g;
bb = b;
}
#if defined(__linux__)
offset_fb = fscinfo.line_length * y + pixel_size * x;
#elif defined(__FreeBSD__)
offset_fb = video_adapter_info.va_line_width * y + pixel_size * x;
#endif
for (i = 0; i < h; i++) {
memcpy(buf + offset_fb, tmp, pixel_size * w);
#if defined(__linux__)
offset_fb += fscinfo.line_length;
#elif defined(__FreeBSD__)
offset_fb += video_adapter_info.va_line_width;
#endif
}
return 0;
}
/********* static functions **************/
static unsigned long
fb_get_packed_color(int r, int g, int b)
{
if (pixel_size == 1) {
return fb_get_cmap_index(r, g, b);
}
else {
#if defined(__linux__)
return
((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);
#elif defined(__FreeBSD__)
return
((r >> (CHAR_BIT - video_info.vi_pixel_fsizes[0])) <<
video_info.vi_pixel_fields[0]) +
((g >> (CHAR_BIT - video_info.vi_pixel_fsizes[1])) <<
video_info.vi_pixel_fields[1]) +
((b >> (CHAR_BIT - video_info.vi_pixel_fsizes[2])) <<
video_info.vi_pixel_fields[2]);
#endif
}
}
static int
fb_get_cmap_index(int r, int g, int b)
{
int work;
if ((r & GREEN_MASK_8BIT) == (g & GREEN_MASK_8BIT)
&& (g & GREEN_MASK_8BIT) == (b & GREEN_MASK_8BIT)) {
work = (r >> MONO_SHIFT_8BIT) + MONO_OFFSET_8BIT;
}
else {
work = ((r & RED_MASK_8BIT) >> RED_SHIFT_8BIT)
+ ((g & GREEN_MASK_8BIT) >> GREEN_SHIFT_8BIT)
+ ((b & BLUE_MASK_8BIT) >> BLUE_SHIFT_8BIT)
+ COLOR_OFFSET_8BIT;
}
return work;
}
static int
fb_cmap_init(void)
{
int lp;
if (cmap == NULL)
return 1;
#if defined(__linux__)
if (cmap->len < COLOR_OFFSET_8BIT + COLORS_8BIT) {
fprintf(stderr, "Can't allocate enough color.\n");
return 1;
}
#elif defined(__FreeBSD__)
if (cmap->count < COLOR_OFFSET_8BIT + COLORS_8BIT) {
fprintf(stderr, "Can't allocate enough color.\n");
return 1;
}
#endif
if (cmap_org == NULL) {
#if defined(__linux__)
if ((cmap_org =
fb_cmap_create(&fscinfo, &vscinfo)) == (struct fb_cmap *)-1) {
return 1;
}
#elif defined(__FreeBSD__)
if ((cmap_org =
fb_cmap_create(&video_info, &video_adapter_info)) ==
(video_color_palette_t *)-1) {
return 1;
}
#endif
if (fb_cmap_get(fbfp, cmap_org)) {
fprintf(stderr, "Can't get color map.\n");
fb_cmap_destroy(cmap_org);
cmap_org = NULL;
return 1;
}
}
#if defined(__linux__)
cmap->start = MONO_OFFSET_8BIT;
cmap->len = COLORS_8BIT + COLORS_MONO_8BIT;
#elif defined(__FreeBSD__)
cmap->index = MONO_OFFSET_8BIT;
cmap->count = COLORS_8BIT + COLORS_MONO_8BIT;
#endif
for (lp = 0; lp < COLORS_MONO_8BIT; lp++) {
int c;
c = (lp << (MONO_SHIFT_8BIT + 8)) +
(lp ? (0xFFFF - (MONO_MASK_8BIT << 8)) : 0);
if (cmap->red)
*(cmap->red + lp) = c;
if (cmap->green)
*(cmap->green + lp) = c;
if (cmap->blue)
*(cmap->blue + lp) = c;
}
for (lp = 0; lp < COLORS_8BIT; lp++) {
int r, g, b;
r = lp & (RED_MASK_8BIT >> RED_SHIFT_8BIT);
g = lp & (GREEN_MASK_8BIT >> GREEN_SHIFT_8BIT);
b = lp & (BLUE_MASK_8BIT >> BLUE_SHIFT_8BIT);
if (cmap->red)
*(cmap->red + lp + COLORS_MONO_8BIT)
= (r << (RED_SHIFT_8BIT + 8)) +
(r ? (0xFFFF - (RED_MASK_8BIT << 8)) : 0);
if (cmap->green)
*(cmap->green + lp + COLORS_MONO_8BIT)
= (g << (GREEN_SHIFT_8BIT + 8)) +
(g ? (0xFFFF - (GREEN_MASK_8BIT << 8)) : 0);
if (cmap->blue)
*(cmap->blue + lp + COLORS_MONO_8BIT)
= (b << (BLUE_SHIFT_8BIT + 8)) +
(b ? (0xFFFF - (BLUE_MASK_8BIT << 8)) : 0);
}
if (fb_cmap_set(fbfp, cmap)) {
fb_cmap_destroy(cmap);
cmap = NULL;
fprintf(stderr, "Can't set color map.\n");
return 1;
}
return 0;
}
/*
* (struct fb_cmap) Device independent colormap information.
*
* fb_cmap_create() create colormap information
* fb_cmap_destroy() destroy colormap information
* fb_cmap_get() get information
* fb_cmap_set() set information
*/
#define LUT_MAX (256)
#if defined(__linux__)
static struct fb_cmap *
fb_cmap_create(struct fb_fix_screeninfo *fscinfo,
struct fb_var_screeninfo *vscinfo)
#elif defined(__FreeBSD__)
static video_color_palette_t *
fb_cmap_create(video_info_t *video_info,
video_adapter_info_t *video_adapter_info)
#endif
{
#if defined(__linux__)
struct fb_cmap *cmap;
#elif defined(__FreeBSD__)
video_color_palette_t *cmap;
#endif
int cmaplen = LUT_MAX;
/* check the existence of colormap */
#if defined(__linux__)
if (fscinfo->visual == FB_VISUAL_MONO01 ||
fscinfo->visual == FB_VISUAL_MONO10 ||
fscinfo->visual == FB_VISUAL_TRUECOLOR)
return NULL;
#elif defined(__FreeBSD__)
if (!(video_adapter_info->va_flags & V_ADP_PALETTE))
return NULL;
#endif
#if defined(__linux__)
cmap = (struct fb_cmap *)malloc(sizeof(struct fb_cmap));
#elif defined(__FreeBSD__)
cmap = (video_color_palette_t *)malloc(sizeof(video_color_palette_t));
#endif
if (!cmap) {
perror("cmap malloc error\n");
#if defined(__linux__)
return (struct fb_cmap *)-1;
#elif defined(__FreeBSD__)
return (video_color_palette_t *)-1;
#endif
}
#if defined(__linux__)
memset(cmap, 0, sizeof(struct fb_cmap));
#elif defined(__FreeBSD__)
memset(cmap, 0, sizeof(video_color_palette_t));
#endif
#if defined(__FreeBSD__)
if (video_info->vi_mem_model == V_INFO_MM_PACKED) {
cmap->red = (u_char *) malloc(sizeof(u_char) * cmaplen);
if (!cmap->red) {
perror("red lut malloc error\n");
return (video_color_palette_t *)-1;
}
cmap->green = (u_char *) malloc(sizeof(u_char) * cmaplen);
if (!cmap->green) {
perror("green lut malloc error\n");
free(cmap->red);
return (video_color_palette_t *)-1;
}
cmap->blue = (u_char *) malloc(sizeof(u_char) * cmaplen);
if (!cmap->blue) {
perror("blue lut malloc error\n");
free(cmap->red);
free(cmap->green);
return (video_color_palette_t *)-1;
}
cmap->transparent = (u_char *) malloc(sizeof(u_char) * cmaplen);
if (!cmap->transparent) {
perror("transparent lut malloc error\n");
free(cmap->red);
free(cmap->green);
free(cmap->blue);
return (video_color_palette_t *)-1;
}
cmap->count = cmaplen;
return cmap;
}
#endif
/* Allocates memory for a colormap */
#if defined(__linux__)
if (vscinfo->red.length) {
cmap->red = (__u16 *) malloc(sizeof(__u16) * cmaplen);
#elif defined(__FreeBSD__)
if (video_info->vi_pixel_fsizes[0]) {
cmap->red = (u_char *) malloc(sizeof(u_char) * cmaplen);
#endif
if (!cmap->red) {
perror("red lut malloc error\n");
#if defined(__linux__)
return (struct fb_cmap *)-1;
#elif defined(__FreeBSD__)
return (video_color_palette_t *)-1;
#endif
}
}
#if defined(__linux__)
if (vscinfo->green.length) {
cmap->green = (__u16 *) malloc(sizeof(__u16) * cmaplen);
#elif defined(__FreeBSD__)
if (video_info->vi_pixel_fsizes[1]) {
cmap->green = (u_char *) malloc(sizeof(u_char) * cmaplen);
#endif
if (!cmap->green) {
#if defined(__linux__)
if (vscinfo->red.length)
free(cmap->red);
#elif defined(__FreeBSD__)
if (video_info->vi_pixel_fsizes[0])
free(cmap->red);
#endif
perror("green lut malloc error\n");
#if defined(__linux__)
return (struct fb_cmap *)-1;
#elif defined(__FreeBSD__)
return (video_color_palette_t *)-1;
#endif
}
}
#if defined(__linux__)
if (vscinfo->blue.length) {
cmap->blue = (__u16 *) malloc(sizeof(__u16) * cmaplen);
#elif defined(__FreeBSD__)
if (video_info->vi_pixel_fsizes[2]) {
cmap->blue = (u_char *) malloc(sizeof(u_char) * cmaplen);
#endif
if (!cmap->blue) {
#if defined(__linux__)
if (vscinfo->red.length)
free(cmap->red);
#elif defined(__FreeBSD__)
if (video_info->vi_pixel_fsizes[0])
free(cmap->red);
#endif
#if defined(__linux__)
if (vscinfo->green.length)
free(cmap->green);
#elif defined(__FreeBSD__)
if (video_info->vi_pixel_fsizes[1])
free(cmap->green);
#endif
perror("blue lut malloc error\n");
#if defined(__linux__)
return (struct fb_cmap *)-1;
#elif defined(__FreeBSD__)
return (video_color_palette_t *)-1;
#endif
}
}
#if defined(__linux__)
if (vscinfo->transp.length) {
cmap->transp = (__u16 *) malloc(sizeof(__u16) * cmaplen);
#elif defined(__FreeBSD__)
if (video_info->vi_pixel_fsizes[3]) {
cmap->transparent = (u_char *) malloc(sizeof(u_char) * cmaplen);
#endif
#if defined(__linux__)
if (!cmap->transp) {
#elif defined(__FreeBSD__)
if (!cmap->transparent) {
#endif
#if defined(__linux__)
if (vscinfo->red.length)
free(cmap->red);
#elif defined(__FreeBSD__)
if (video_info->vi_pixel_fsizes[0])
free(cmap->red);
#endif
#if defined(__linux__)
if (vscinfo->green.length)
free(cmap->green);
#elif defined(__FreeBSD__)
if (video_info->vi_pixel_fsizes[1])
free(cmap->green);
#endif
#if defined(__linux__)
if (vscinfo->blue.length)
free(cmap->blue);
perror("transp lut malloc error\n");
#elif defined(__FreeBSD__)
if (video_info->vi_pixel_fsizes[2])
free(cmap->blue);
perror("transparent lut malloc error\n");
#endif
#if defined(__linux__)
return (struct fb_cmap *)-1;
#elif defined(__FreeBSD__)
return (video_color_palette_t *)-1;
#endif
}
}
#if defined(__linux__)
cmap->len = cmaplen;
#elif defined(__FreeBSD__)
cmap->count = cmaplen;
#endif
return cmap;
}
#if defined(__linux__)
static void
fb_cmap_destroy(struct fb_cmap *cmap)
#elif defined(__FreeBSD__)
static void
fb_cmap_destroy(video_color_palette_t *cmap)
#endif
{
if (cmap->red)
free(cmap->red);
if (cmap->green)
free(cmap->green);
if (cmap->blue)
free(cmap->blue);
#if defined(__linux__)
if (cmap->transp)
free(cmap->transp);
#elif defined(__FreeBSD__)
if (cmap->transparent)
free(cmap->transparent);
#endif
free(cmap);
}
#if defined(__linux__)
static int
fb_cmap_get(int fbfp, struct fb_cmap *cmap)
#elif defined(__FreeBSD__)
static int
fb_cmap_get(int fbfp, video_color_palette_t *cmap)
#endif
{
#if defined(__linux__)
if (ioctl(fbfp, FBIOGETCMAP, cmap)) {
perror("ioctl FBIOGETCMAP error\n");
return -1;
}
#elif defined(__FreeBSD__)
if (ioctl(fbfp, FBIO_GETPALETTE, cmap) == -1) {
perror("ioctl FBIO_GETPALETTE error\n");
return -1;
}
#endif
return 0;
}
#if defined(__linux__)
static int
fb_cmap_set(int fbfp, struct fb_cmap *cmap)
#elif defined(__FreeBSD__)
static int
fb_cmap_set(int fbfp, video_color_palette_t *cmap)
#endif
{
#if defined(__linux__)
if (ioctl(fbfp, FBIOPUTCMAP, cmap)) {
perror("ioctl FBIOPUTCMAP error\n");
return -1;
}
#elif defined(__FreeBSD__)
if (ioctl(fbfp, FBIO_SETPALETTE, cmap) == -1) {
perror("ioctl FBIO_SETPALETTE error\n");
return -1;
}
#endif
return 0;
}
/*
* access to framebuffer
*
* fb_mmap() map from framebuffer into memory
* fb_munmap() deletes the mappings
*/
#if defined(__linux__)
static void *
fb_mmap(int fbfp, struct fb_fix_screeninfo *scinfo)
#elif defined(__FreeBSD__)
static void *
fb_mmap(int fbfp, video_adapter_info_t *video_adapter_info)
#endif
{
void *buf;
#if defined(__linux__)
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;
}
#elif defined(__FreeBSD__)
size_t mmap_offset;
size_t mmap_length;
mmap_offset = (size_t)(video_adapter_info->va_window) & (PAGE_MASK);
mmap_length = (size_t)(video_adapter_info->va_window_size +
mmap_offset + PAGE_MASK) & (~PAGE_MASK);
if ((buf = (unsigned char *)
mmap(NULL, mmap_length, PROT_READ | PROT_WRITE, MAP_SHARED, fbfp,
(off_t) 0))
== MAP_FAILED) {
perror("mmap error");
return NULL;
}
#endif
return buf;
}
#if defined(__linux__)
static int
fb_munmap(void *buf, struct fb_fix_screeninfo *scinfo)
#elif defined(__FreeBSD__)
static int
fb_munmap(void *buf, video_adapter_info_t *video_adapter_info)
#endif
{
#if defined(__linux__)
return munmap(buf, scinfo->smem_len);
#elif defined(__FreeBSD__)
size_t mmap_offset;
size_t mmap_length;
mmap_offset = (size_t)(video_adapter_info->va_window) & (PAGE_MASK);
mmap_length = (size_t)(video_adapter_info->va_window_size +
mmap_offset + PAGE_MASK) & (~PAGE_MASK);
return munmap((void *)((u_long)buf & (~PAGE_MASK)), mmap_length);
#endif
}
/*
* (struct fb_fix_screeninfo) device independent fixed information
*
* fb_fscrn_get() get information
*/
#if defined(__linux__)
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;
}
#endif
/*
* (struct fb_var_screeninfo) device independent variable information
*
* fb_vscrn_get() get information
*/
#if defined(__linux__)
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;
}
#endif
#if defined(__FreeBSD__)
static int
fb_video_mode_get(int fbfp, int *video_mode)
{
if (ioctl(fbfp, FBIO_GETMODE, video_mode) == -1) {
perror("ioctl FBIO_GETMODE error\n");
return -1;
}
return 0;
}
#endif
#if defined(__FreeBSD__)
static int
fb_video_info_get(int fbfp, video_info_t *video_info)
{
if (ioctl(fbfp, FBIO_MODEINFO, video_info) == -1) {
perror("ioctl FBIO_MODEINFO error\n");
return -1;
}
return 0;
}
#endif
#if defined(__FreeBSD__)
static int
fb_video_adapter_info_get(int fbfp, video_adapter_info_t *video_adapter_info)
{
if (ioctl(fbfp, FBIO_ADPINFO, video_adapter_info) == -1) {
perror("ioctl FBIO_ADPINFO error\n");
return -1;
}
return 0;
}
#endif
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