[Mplayer-cvslog] CVS: main/libvo vo_fbdev2.c,NONE,1.1 video_out.c,1.72,1.73
Alex Beregszaszi
alex at mplayerhq.hu
Mon Sep 1 01:00:44 CEST 2003
Update of /cvsroot/mplayer/main/libvo
In directory mail:/var/tmp.root/cvs-serv29920/libvo
Modified Files:
video_out.c
Added Files:
vo_fbdev2.c
Log Message:
vo_fbdev2 written by Joey Parrish with some minor modifications
--- NEW FILE ---
/*
* Video driver for Framebuffer device
* by Joey Parrish <joey at nicewarrior.org>
* (C) 2003
*/
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#include <sys/mman.h>
#include <sys/ioctl.h>
#include <linux/fb.h>
#include "config.h"
#include "video_out.h"
#include "video_out_internal.h"
#include "fastmemcpy.h"
#include "mp_msg.h"
static vo_info_t info = {
"Framebuffer Device",
"fbdev2",
"Joey Parrish <joey at nicewarrior.org>",
""
};
LIBVO_EXTERN(fbdev2)
static void set_bpp(struct fb_var_screeninfo *p, int bpp)
{
p->bits_per_pixel = (bpp + 1) & ~1;
p->red.msb_right = p->green.msb_right = p->blue.msb_right = p->transp.msb_right = 0;
p->transp.offset = p->transp.length = 0;
p->blue.offset = 0;
switch (bpp) {
case 32:
p->transp.offset = 24;
p->transp.length = 8;
case 24:
p->red.offset = 16;
p->red.length = 8;
p->green.offset = 8;
p->green.length = 8;
p->blue.length = 8;
break;
case 16:
p->red.offset = 11;
p->green.length = 6;
p->red.length = 5;
p->green.offset = 5;
p->blue.length = 5;
break;
case 15:
p->red.offset = 10;
p->green.length = 5;
p->red.length = 5;
p->green.offset = 5;
p->blue.length = 5;
break;
}
}
static char *fb_dev_name = NULL; // such as /dev/fb0
static int fb_dev_fd; // handle for fb_dev_name
static uint8_t *frame_buffer = NULL; // mmap'd access to fbdev
static uint8_t *center = NULL; // where to begin writing our image (centered?)
static struct fb_fix_screeninfo fb_finfo; // fixed info
static struct fb_var_screeninfo fb_vinfo; // variable info
static struct fb_var_screeninfo fb_orig_vinfo; // variable info to restore later
static struct fb_cmap fb_oldcmap; // cmap to restore later
static int fb_cmap_changed = 0; // to restore map
static int fb_pixel_size; // 32: 4 24: 3 16: 2 15: 2
static int fb_bpp; // 32: 32 24: 24 16: 16 15: 15
static size_t fb_size; // size of frame_buffer
static int fb_line_len; // length of one line in bytes
static void (*draw_alpha_p)(int w, int h, unsigned char *src,
unsigned char *srca, int stride, unsigned char *dst,
int dstride);
static uint8_t *next_frame = NULL; // for double buffering
static int in_width;
static int in_height;
static int out_width;
static int out_height;
static struct fb_cmap *make_directcolor_cmap(struct fb_var_screeninfo *var)
{
int i, cols, rcols, gcols, bcols;
uint16_t *red, *green, *blue;
struct fb_cmap *cmap;
rcols = 1 << var->red.length;
gcols = 1 << var->green.length;
bcols = 1 << var->blue.length;
/* Make our palette the length of the deepest color */
cols = (rcols > gcols ? rcols : gcols);
cols = (cols > bcols ? cols : bcols);
red = malloc(cols * sizeof(red[0]));
if(!red) {
mp_msg(MSGT_VO, MSGL_ERR, "[fbdev2] Can't allocate red palette with %d entries.\n", cols);
return NULL;
}
for(i=0; i< rcols; i++)
red[i] = (65535/(rcols-1)) * i;
green = malloc(cols * sizeof(green[0]));
if(!green) {
mp_msg(MSGT_VO, MSGL_ERR, "[fbdev2] Can't allocate green palette with %d entries.\n", cols);
free(red);
return NULL;
}
for(i=0; i< gcols; i++)
green[i] = (65535/(gcols-1)) * i;
blue = malloc(cols * sizeof(blue[0]));
if(!blue) {
mp_msg(MSGT_VO, MSGL_ERR, "[fbdev2] Can't allocate blue palette with %d entries.\n", cols);
free(red);
free(green);
return NULL;
}
for(i=0; i< bcols; i++)
blue[i] = (65535/(bcols-1)) * i;
cmap = malloc(sizeof(struct fb_cmap));
if(!cmap) {
mp_msg(MSGT_VO, MSGL_ERR, "[fbdev2] Can't allocate color map\n");
free(red);
free(green);
free(blue);
return NULL;
}
cmap->start = 0;
cmap->transp = 0;
cmap->len = cols;
cmap->red = red;
cmap->blue = blue;
cmap->green = green;
cmap->transp = NULL;
return cmap;
}
static int fb_preinit(int reset)
{
static int fb_preinit_done = 0;
static int fb_err = -1;
if (reset) {
fb_preinit_done = 0;
return 0;
}
if (fb_preinit_done)
return fb_err;
fb_preinit_done = 1;
if (!fb_dev_name && !(fb_dev_name = getenv("FRAMEBUFFER")))
fb_dev_name = strdup("/dev/fb0");
mp_msg(MSGT_VO, MSGL_V, "[fbdev2] Using device %s\n", fb_dev_name);
if ((fb_dev_fd = open(fb_dev_name, O_RDWR)) == -1) {
mp_msg(MSGT_VO, MSGL_ERR, "[fbdev2] Can't open %s: %s\n", fb_dev_name, strerror(errno));
goto err_out;
}
if (ioctl(fb_dev_fd, FBIOGET_VSCREENINFO, &fb_vinfo)) {
mp_msg(MSGT_VO, MSGL_ERR, "[fbdev2] Can't get VSCREENINFO: %s\n", strerror(errno));
goto err_out;
}
fb_orig_vinfo = fb_vinfo;
fb_bpp = fb_vinfo.bits_per_pixel;
/* 16 and 15 bpp is reported as 16 bpp */
if (fb_bpp == 16)
fb_bpp = fb_vinfo.red.length + fb_vinfo.green.length +
fb_vinfo.blue.length;
fb_err = 0;
return 0;
err_out:
if (fb_dev_fd >= 0) close(fb_dev_fd);
fb_dev_fd = -1;
fb_err = -1;
return -1;
}
static uint32_t preinit(const char *ignore)
{
return fb_preinit(0);
}
static uint32_t config(uint32_t width, uint32_t height, uint32_t d_width,
uint32_t d_height, uint32_t flags, char *title,
uint32_t format)
{
struct fb_cmap *cmap;
int fs = flags & 0x01;
out_width = width;
out_height = height;
in_width = width;
in_height = height;
if (fs) {
out_width = fb_vinfo.xres;
out_height = fb_vinfo.yres;
}
if (out_width < in_width || out_height < in_height) {
mp_msg(MSGT_VO, MSGL_ERR, "[fbdev2] Screensize is smaller than video size (%dx%d < %dx%d)\n",
out_width, out_height, in_width, in_height);
return 1;
}
switch (fb_bpp) {
case 32: draw_alpha_p = vo_draw_alpha_rgb32; break;
case 24: draw_alpha_p = vo_draw_alpha_rgb24; break;
case 16: draw_alpha_p = vo_draw_alpha_rgb16; break;
case 15: draw_alpha_p = vo_draw_alpha_rgb15; break;
default: return 1;
}
if (vo_config_count == 0) {
if (ioctl(fb_dev_fd, FBIOGET_FSCREENINFO, &fb_finfo)) {
mp_msg(MSGT_VO, MSGL_ERR, "[fbdev2] Can't get FSCREENINFO: %s\n", strerror(errno));
return 1;
}
if (fb_finfo.type != FB_TYPE_PACKED_PIXELS) {
mp_msg(MSGT_VO, MSGL_ERR, "[fbdev2] type %d not supported\n", fb_finfo.type);
return 1;
}
switch (fb_finfo.visual) {
case FB_VISUAL_TRUECOLOR:
break;
case FB_VISUAL_DIRECTCOLOR:
mp_msg(MSGT_VO, MSGL_V, "[fbdev2] creating cmap for directcolor\n");
if (ioctl(fb_dev_fd, FBIOGETCMAP, &fb_oldcmap)) {
mp_msg(MSGT_VO, MSGL_ERR, "[fbdev2] can't get cmap: %s\n", strerror(errno));
return 1;
}
if (!(cmap = make_directcolor_cmap(&fb_vinfo)))
return 1;
if (ioctl(fb_dev_fd, FBIOPUTCMAP, cmap)) {
mp_msg(MSGT_VO, MSGL_ERR, "[fbdev2] can't put cmap: %s\n", strerror(errno));
return 1;
}
fb_cmap_changed = 1;
free(cmap->red);
free(cmap->green);
free(cmap->blue);
free(cmap);
break;
default:
mp_msg(MSGT_VO, MSGL_ERR, "[fbdev2] visual: %d not yet supported\n", fb_finfo.visual);
return 1;
}
fb_size = fb_finfo.smem_len;
fb_line_len = fb_finfo.line_length;
if ((frame_buffer = (uint8_t *) mmap(0, fb_size, PROT_READ | PROT_WRITE, MAP_SHARED, fb_dev_fd, 0)) == (uint8_t *) -1) {
mp_msg(MSGT_VO, MSGL_ERR, "[fbdev2] Can't mmap %s: %s\n", fb_dev_name, strerror(errno));
return 1;
}
}
center = frame_buffer + (out_width - in_width) * fb_pixel_size /
2 + ( (out_height - in_height) / 2 ) * fb_line_len;
#ifndef USE_CONVERT2FB
if (!(next_frame = (uint8_t *) realloc(next_frame, in_width * in_height * fb_pixel_size))) {
mp_msg(MSGT_VO, MSGL_ERR, "[fbdev2] Can't malloc next_frame: %s\n", strerror(errno));
return 1;
}
#endif
if (fs) memset(frame_buffer, '\0', fb_line_len * fb_vinfo.yres);
return 0;
}
static uint32_t query_format(uint32_t format)
{
// open the device, etc.
if (fb_preinit(0)) return 0;
if ((format & IMGFMT_BGR_MASK) == IMGFMT_BGR) {
int fb_target_bpp = format & 0xff;
set_bpp(&fb_vinfo, fb_target_bpp);
fb_vinfo.xres_virtual = fb_vinfo.xres;
fb_vinfo.yres_virtual = fb_vinfo.yres;
if (ioctl(fb_dev_fd, FBIOPUT_VSCREENINFO, &fb_vinfo)) {
mp_msg(MSGT_VO, MSGL_ERR, "[fbdev2] Can't put VSCREENINFO: %s\n", strerror(errno));
return 0;
}
fb_pixel_size = fb_vinfo.bits_per_pixel / 8;
fb_bpp = fb_vinfo.red.length + fb_vinfo.green.length +
fb_vinfo.blue.length + fb_vinfo.transp.length;
if (fb_bpp == fb_target_bpp)
return VFCAP_CSP_SUPPORTED|VFCAP_CSP_SUPPORTED_BY_HW|VFCAP_ACCEPT_STRIDE;
}
return 0;
}
static void draw_alpha(int x0, int y0, int w, int h, unsigned char *src,
unsigned char *srca, int stride)
{
unsigned char *dst;
int dstride;
#ifdef USE_CONVERT2FB
dst = center + (fb_line_len * y0) + (x0 * fb_pixel_size);
dstride = fb_line_len;
#else
dst = next_frame + (in_width * y0 + x0) * fb_pixel_size;
dstride = in_width * fb_pixel_size;
#endif
(*draw_alpha_p)(w, h, src, srca, stride, dst, dstride);
}
static void draw_osd(void)
{
vo_draw_text(in_width, in_height, draw_alpha);
}
// all csp support stride
static uint32_t draw_frame(uint8_t *src[]) { return 1; }
static uint32_t draw_slice(uint8_t *src[], int stride[], int w, int h, int x, int y)
{
uint8_t *in = src[0];
#ifdef USE_CONVERT2FB
uint8_t *dest = center + (fb_line_len * y) + (x * fb_pixel_size);
int next = fb_line_len;
#else
uint8_t *dest = next_frame + (in_width * y + x) * fb_pixel_size;
int next = in_width * fb_pixel_size;
#endif
int i;
for (i = 0; i < h; i++) {
memcpy(dest, in, w * fb_pixel_size);
dest += next;
in += stride[0];
}
return 0;
}
static void check_events(void)
{
}
static void flip_page(void)
{
#ifndef USE_CONVERT2FB
int i, out_offset = 0, in_offset = 0;
for (i = 0; i < in_height; i++) {
memcpy(center + out_offset, next_frame + in_offset,
in_width * fb_pixel_size);
out_offset += fb_line_len;
in_offset += in_width * fb_pixel_size;
}
#endif
}
static void uninit(void)
{
if (fb_cmap_changed) {
if (ioctl(fb_dev_fd, FBIOPUTCMAP, &fb_oldcmap))
mp_msg(MSGT_VO, MSGL_ERR, "[fbdev2] Can't restore original cmap\n");
fb_cmap_changed = 0;
}
if(next_frame) free(next_frame);
if (fb_dev_fd >= 0) {
if (ioctl(fb_dev_fd, FBIOPUT_VSCREENINFO, &fb_orig_vinfo))
mp_msg(MSGT_VO, MSGL_ERR, "[fbdev2] Can't reset original fb_var_screeninfo: %s\n", strerror(errno));
close(fb_dev_fd);
fb_dev_fd = -1;
}
if(frame_buffer) munmap(frame_buffer, fb_size);
next_frame = frame_buffer = NULL;
fb_preinit(1); // so that later calls to preinit don't fail
}
static uint32_t control(uint32_t request, void *data, ...)
{
switch (request) {
case VOCTRL_QUERY_FORMAT:
return query_format(*((uint32_t*)data));
}
return VO_NOTIMPL;
}
Index: video_out.c
===================================================================
RCS file: /cvsroot/mplayer/main/libvo/video_out.c,v
retrieving revision 1.72
retrieving revision 1.73
diff -u -r1.72 -r1.73
--- video_out.c 24 Aug 2003 18:26:37 -0000 1.72
+++ video_out.c 31 Aug 2003 23:00:39 -0000 1.73
@@ -70,6 +70,7 @@
extern vo_functions_t video_out_md5;
extern vo_functions_t video_out_syncfb;
extern vo_functions_t video_out_fbdev;
+extern vo_functions_t video_out_fbdev2;
extern vo_functions_t video_out_svga;
extern vo_functions_t video_out_png;
extern vo_functions_t video_out_ggi;
@@ -157,6 +158,7 @@
#endif
#ifdef HAVE_FBDEV
&video_out_fbdev,
+ &video_out_fbdev2,
#endif
#ifdef HAVE_SVGALIB
&video_out_svga,
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