github/mpv
1
Fork 0
mirror of https://github.com/mpv-player/mpv synced 2025-01-09 01:36:25 +01:00
Code Releases Activity

General Timing Formula algorithm from a scratch.

Browse Source 
vo_vesa.c so now adjust the timing to highest possible refresh rate using
the monitor capabilities from a config file.
patch by Rudolf Marek <MAREKR2@cs.felk.cvut.cz>


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@7070 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
arpi 2002-08-22 23:03:51 +00:00
parent 0e6edc2840
commit 4ae1571dda
10 changed files with 552 additions and 78 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
cfg-mplayer.h
View File

@ -6,13 +6,16 @@
extern int use_stdin;
#if defined(HAVE_FBDEV)||defined(HAVE_VESA)
extern char *monitor_hfreq_str;
extern char *monitor_vfreq_str;
extern char *monitor_dotclock_str;
#endif
#ifdef HAVE_FBDEV
extern char *fb_dev_name;
extern char *fb_mode_cfgfile;
extern char *fb_mode_name;
extern char *monitor_hfreq_str;
extern char *monitor_vfreq_str;
extern char *monitor_dotclock_str;
#else
#ifdef HAVE_DIRECTFB
extern char *fb_dev_name;

2
libvo/Makefile
View File

@ -3,7 +3,7 @@ include config.mak
LIBNAME = libvo.a
SRCS=aspect.c aclib.c osd.c font_load.c spuenc.c video_out.c vo_null.c vo_pgm.c vo_md5.c vo_mpegpes.c vo_yuv4mpeg.c $(OPTIONAL_SRCS) sub.c
SRCS=aspect.c aclib.c osd.c font_load.c gtf.c spuenc.c video_out.c vo_null.c vo_pgm.c vo_md5.c vo_mpegpes.c vo_yuv4mpeg.c $(OPTIONAL_SRCS) sub.c
OBJS=$(SRCS:.c=.o)
ifeq ($(VIDIX),yes)

297
libvo/gtf.c Normal file
View File

@ -0,0 +1,297 @@
/*
* Copyright (C) Rudolf Marek <r.marek@sh.cvut.cz> - Aug 2002
*
* You can redistribute this file under terms and conditions
* of GNU General Public licence v2.
*
* GTF calculations formulas are taken from GTF_V1R1.xls
* created by ANDY.MORRISH@NSC.COM
*/
//Version 0.4
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include "gtf.h"
#undef GTF_DEBUG
#ifdef GTF_DEBUG
#define DEBUG_PRINTF(a,b) printf(a,b);
#else
#define DEBUG_PRINTF(a,b)
#endif
static GTF_constants GTF_given_constants = { 3.0,550.0,1,8,1.8,8,40,20,128,600 };
static double round(double v)
{
return floor(v + 0.5);
}
static void GetRoundedConstants(GTF_constants *c)
{
c->Vsync_need = round(GTF_given_constants.Vsync_need);
c->min_Vsync_BP = GTF_given_constants.min_Vsync_BP;
c->min_front_porch = round(GTF_given_constants.min_front_porch);
c->char_cell_granularity = GTF_given_constants.char_cell_granularity;
c->margin_width = GTF_given_constants.margin_width;
c->sync_width = GTF_given_constants.sync_width;
c->c = ((GTF_given_constants.c - GTF_given_constants.j)*(GTF_given_constants.k / 256)) + GTF_given_constants.j;
c->j = GTF_given_constants.j;
c->k = GTF_given_constants.k;
c->m = (GTF_given_constants.k / 256) * GTF_given_constants.m;
}
void GTF_calcTimings(double X,double Y,double freq, int type,
int want_margins, int want_interlace,struct VesaCRTCInfoBlock *result )
{
GTF_constants c;
double RR, margin_top, margin_bottom, margin_left, margin_right;
double estimated_H_period,sync_plus_BP,BP,interlace,V_total_lines_field;
double estimated_V_field_rate,actual_H_period,actual_V_field_freq;
double total_active_pixels, ideal_duty_cycle, blanking_time, H_total_pixels;
double H_freq, pixel_freq,actual_V_frame_freq;
double H_sync_start, H_sync_end, H_back_porch, H_front_porch, H_sync_width;
double V_back_porch, V_front_porch, V_sync_start, V_sync_end,V_sync_width;
double ideal_H_period;
GetRoundedConstants(&c);
pixel_freq = RR = freq;
/* DETERMINE IF 1/2 LINE INTERLACE IS PRESENT */
interlace = 0;
if (want_interlace) {
RR = RR * 2;
Y=Y/2;
interlace = 0.5;
}
result->Flags = 0;
if ((Y==300)||(Y==200)||(Y==240))
{
Y*=2;
result->Flags = VESA_CRTC_DOUBLESCAN; /* TODO: check if mode support */
}
/* DETERMINE NUMBER OF LINES IN V MARGIN */
/* DETERMINE NUMBER OF PIXELS IN H MARGIN [pixels] */
margin_left = margin_right = 0;
margin_top = margin_bottom = 0;
if (want_margins) {
margin_top = margin_bottom = (c.margin_width / 100) * Y;
margin_left = round(( X* c.margin_width/100)/c.char_cell_granularity) \
* c.char_cell_granularity;
margin_right = margin_left;
DEBUG_PRINTF("margin_left_right : %f\n",margin_right)
DEBUG_PRINTF("margin_top_bottom : %f\n",margin_top)
}
/* FIND TOTAL NUMBER OF ACTIVE PIXELS (IMAGE + MARGIN) [pixels] */
total_active_pixels = margin_left + margin_right + X;
DEBUG_PRINTF("total_active_pixels: %f\n",total_active_pixels)
if (type == GTF_PF)
{
ideal_H_period = ((c.c-100)+(sqrt(((100-c.c)*(100-c.c) )+(0.4*c.m*(total_active_pixels + margin_left + margin_right) / freq))))/2/c.m*1000;
DEBUG_PRINTF("ideal_H_period: %f\n",ideal_H_period)
/* FIND IDEAL BLANKING DUTY CYCLE FROM FORMULA [%] */
ideal_duty_cycle = c.c - (c.m * ideal_H_period /1000);
DEBUG_PRINTF("ideal_duty_cycle: %f\n",ideal_duty_cycle)
/* FIND BLANKING TIME (TO NEAREST CHAR CELL) [pixels] */
blanking_time = round(total_active_pixels * ideal_duty_cycle \
/ (100-ideal_duty_cycle) / (2*c.char_cell_granularity)) \
* (2*c.char_cell_granularity);
DEBUG_PRINTF("blanking_time : %f\n",blanking_time )
/* FIND TOTAL NUMBER OF PIXELS IN A LINE [pixels] */
H_total_pixels = total_active_pixels + blanking_time ;
DEBUG_PRINTF("H_total_pixels: %f\n",H_total_pixels)
H_freq = freq / H_total_pixels * 1000;
DEBUG_PRINTF("H_freq: %f\n",H_freq)
actual_H_period = 1000 / H_freq;
DEBUG_PRINTF("actual_H_period: %f\n",actual_H_period)
sync_plus_BP = round(H_freq * c.min_Vsync_BP/1000);
// sync_plus_BP = round( freq / H_total_pixels * c.min_Vsync_BP);
DEBUG_PRINTF("sync_plus_BP: %f\n",sync_plus_BP)
} else if (type == GTF_VF)
{
/* ESTIMATE HORIZ. PERIOD [us] */
estimated_H_period = (( 1/RR ) - c.min_Vsync_BP/1000000 ) / (Y + (2 * margin_top) + c.min_front_porch + interlace) * 1000000;
DEBUG_PRINTF("estimated_H_period: %f\n",estimated_H_period)
/* FIND NUMBER OF LINES IN (SYNC + BACK PORCH) [lines] */
sync_plus_BP = round( c.min_Vsync_BP / estimated_H_period );
DEBUG_PRINTF("sync_plus_BP: %f\n",sync_plus_BP)
} else if (type == GTF_HF)
{
sync_plus_BP = round(freq * c.min_Vsync_BP/1000);
DEBUG_PRINTF("sync_plus_BP: %f\n",sync_plus_BP)
}
/* FIND TOTAL NUMBER OF LINES IN VERTICAL FIELD */
V_total_lines_field = sync_plus_BP+interlace+margin_bottom+margin_top+Y+c.min_front_porch;
DEBUG_PRINTF("V_total_lines_field : %f\n",V_total_lines_field )
if (type == GTF_VF)
{
/* ESTIMATE VERTICAL FIELD RATE [hz] */
estimated_V_field_rate = 1 / estimated_H_period / V_total_lines_field * 1000000;
DEBUG_PRINTF(" estimated_V_field_rate: %f\n", estimated_V_field_rate)
/* FIND ACTUAL HORIZONTAL PERIOD [us] */
actual_H_period = estimated_H_period / (RR / estimated_V_field_rate);
DEBUG_PRINTF("actual_H_period: %f\n",actual_H_period)
/* FIND ACTUAL VERTICAL FIELD FREQUENCY [Hz] */
actual_V_field_freq = 1 / actual_H_period / V_total_lines_field * 1000000;
DEBUG_PRINTF("actual_V_field_freq: %f\n",actual_V_field_freq)
/* FIND IDEAL BLANKING DUTY CYCLE FROM FORMULA [%] */
ideal_duty_cycle = c.c - (c.m * actual_H_period /1000);
DEBUG_PRINTF("ideal_duty_cycle: %f\n",ideal_duty_cycle)
//if (type == GTF_VF)
//{
//moved
//}
} else if (type == GTF_HF)
{
/* FIND IDEAL BLANKING DUTY CYCLE FROM FORMULA [%] */
ideal_duty_cycle = c.c - (c.m / freq);
DEBUG_PRINTF("ideal_duty_cycle: %f\n",ideal_duty_cycle)
}
/* FIND BLANKING TIME (TO NEAREST CHAR CELL) [pixels] */
if (!(type == GTF_PF))
{
blanking_time = round(total_active_pixels * ideal_duty_cycle \
/ (100-ideal_duty_cycle) / (2*c.char_cell_granularity)) \
* (2*c.char_cell_granularity);
DEBUG_PRINTF("blanking_time : %f\n",blanking_time )
}
else
// if (type == GTF_PF)
{
actual_V_field_freq = H_freq / V_total_lines_field * 1000;
}
if (type == GTF_HF)
{
/* Hz */
actual_V_field_freq = freq / V_total_lines_field * 1000;
DEBUG_PRINTF("actual_V_field_freq: %f\n",actual_V_field_freq)
}
actual_V_frame_freq = actual_V_field_freq;
/* FIND ACTUAL VERTICAL FRAME FREQUENCY [Hz]*/
if (want_interlace) actual_V_frame_freq = actual_V_field_freq / 2;
DEBUG_PRINTF("actual_V_frame_freq: %f\n",actual_V_frame_freq)
// V_freq = actual_V_frame_freq;
// DEBUG_PRINTF("V_freq %f\n",V_freq)
if (!(type == GTF_PF))
{
/* FIND TOTAL NUMBER OF PIXELS IN A LINE [pixels] */
H_total_pixels = total_active_pixels + blanking_time ;
DEBUG_PRINTF("H_total_pixels: %f\n",H_total_pixels)
if (type == GTF_VF)
{
/* FIND PIXEL FREQUENCY [Mhz] */
pixel_freq = H_total_pixels / actual_H_period ;
DEBUG_PRINTF("pixel_freq: %f\n",pixel_freq)
} else if (type == GTF_HF)
{
/* FIND PIXEL FREQUENCY [Mhz] */
pixel_freq = H_total_pixels * freq / 1000 ;
DEBUG_PRINTF("pixel_freq: %f\n",pixel_freq)
actual_H_period = 1000/freq;
}
/* FIND ACTUAL HORIZONTAL FREQUENCY [KHz] */
H_freq = 1000 / actual_H_period;
DEBUG_PRINTF("H_freq %f\n",H_freq)
}
/* FIND NUMBER OF LINES IN BACK PORCH [lines] */
BP = sync_plus_BP - c.Vsync_need;
DEBUG_PRINTF("BP: %f\n",BP)
/*------------------------------------------------------------------------------------------------*/
/* FIND H SYNC WIDTH (TO NEAREST CHAR CELL) */
H_sync_width = round(c.sync_width/100*H_total_pixels/c.char_cell_granularity)*c.char_cell_granularity;
DEBUG_PRINTF("H_sync_width %f\n",H_sync_width)
/* FIND FRONT H PORCH(TO NEAREST CHAR CELL) */
H_front_porch = (blanking_time/2) - H_sync_width;
DEBUG_PRINTF("H_front_porch %f\n",H_front_porch)
/* FIND BACK H PORCH(TO NEAREST CHAR CELL) */
H_back_porch = H_sync_width + H_front_porch;
DEBUG_PRINTF("H_back_porch%f\n",H_back_porch)
H_sync_start = H_total_pixels - (H_sync_width + H_back_porch);
DEBUG_PRINTF("H_sync_start %f\n",H_sync_start)
H_sync_end = H_total_pixels - H_back_porch;
DEBUG_PRINTF("H_sync_end %f\n",H_sync_end)
V_back_porch = interlace + BP;
DEBUG_PRINTF("V_back_porch%f\n",V_back_porch)
V_front_porch = interlace + c.min_front_porch;
DEBUG_PRINTF("V_front_porch%f\n",V_front_porch)
V_sync_width = c.Vsync_need;
V_sync_start = V_total_lines_field - (V_sync_width + V_back_porch);
DEBUG_PRINTF("V_sync_start %f\n",V_sync_start)
V_sync_end = V_total_lines_field - V_back_porch;
DEBUG_PRINTF("V_sync_end %f\n",V_sync_end)
result->hTotal = H_total_pixels;
result-> hSyncStart = H_sync_start; /* Horizontal sync start in pixels */
result-> hSyncEnd = H_sync_end; /* Horizontal sync end in pixels */
result-> vTotal= V_total_lines_field; /* Vertical total in lines */
result-> vSyncStart = V_sync_start; /* Vertical sync start in lines */
result-> vSyncEnd = V_sync_end; /* Vertical sync end in lines */
result-> Flags = (result->Flags)|VESA_CRTC_HSYNC_NEG; /* Flags (Interlaced, Double Scan etc) */
if (want_interlace)
{
result->Flags = (result->Flags) | VESA_CRTC_INTERLACED;
}
result-> PixelClock = pixel_freq*1000000; /* Pixel clock in units of Hz */
result-> RefreshRate = actual_V_frame_freq*100;/* Refresh rate in units of 0.01 Hz*/
}

48
libvo/gtf.h Normal file
View File

@ -0,0 +1,48 @@
#ifndef __GTF_H
#define __GTF_H
#include "linux/vbelib.h"
#define GTF_VF 0
#define GTF_HF 1
#define GTF_PF 2
typedef struct {
double Vsync_need; /* Number of lines for vert sync (default 3) */
double min_Vsync_BP; /* Minimum vertical sync + back porch (us) (default 550)*/
double min_front_porch; /* Minimum front porch in lines (default 1) */
double char_cell_granularity; /* Character cell granularity in pixels (default 8) */
double margin_width; /* Top/ bottom MARGIN size as % of height (%) (default 1.8) */
double sync_width; /* Sync width percent of line period ( default 8) */
double c; /* Blanking formula offset (default 40)*/
double j; /* Blanking formula scaling factor weight (default 20)*/
double k; /* Blanking formula scaling factor (default 128)*/
double m; /* Blanking formula gradient (default 600)*/
} GTF_constants;
//#ifndef __VESA_VBELIB_INCLUDED__
// struct VesaCRTCInfoBlock {
// unsigned short hTotal; /* Horizontal total in pixels */
// unsigned short hSyncStart; /* Horizontal sync start in pixels */
// unsigned short hSyncEnd; /* Horizontal sync end in pixels */
// unsigned short vTotal; /* Vertical total in lines */
// unsigned short vSyncStart; /* Vertical sync start in lines */
// unsigned short vSyncEnd; /* Vertical sync end in lines */
// unsigned char Flags; /* Flags (Interlaced, Double Scan etc) */
// unsigned long PixelClock; /* Pixel clock in units of Hz */
// unsigned short RefreshRate;/* Refresh rate in units of 0.01 Hz*/
// unsigned char Reserved[40];/* remainder of CRTCInfoBlock*/
//}__attribute__ ((packed));
//#define VESA_CRTC_DOUBLESCAN 0x01
//#define VESA_CRTC_INTERLACED 0x02
//#define VESA_CRTC_HSYNC_NEG 0x04
//#define VESA_CRTC_VSYNC_NEG 0x08
//#endif
void GTF_calcTimings(double X,double Y,double freq, int type,
int want_margins, int want_interlace,struct VesaCRTCInfoBlock *result);
#endif

82
libvo/video_out.c
View File

@ -201,3 +201,85 @@ void libvo_register_options(void* cfg) {
vo_dxr2_register_options(cfg);
#endif
}
#if defined(HAVE_FBDEV)||defined(HAVE_VESA)
/* Borrowed from vo_fbdev.c
Monitor ranges related functions*/
char *monitor_hfreq_str = NULL;
char *monitor_vfreq_str = NULL;
char *monitor_dotclock_str = NULL;
float range_max(range_t *r)
{
float max = 0;
for (/* NOTHING */; (r->min != -1 && r->max != -1); r++)
if (max < r->max) max = r->max;
return max;
}
int in_range(range_t *r, float f)
{
for (/* NOTHING */; (r->min != -1 && r->max != -1); r++)
if (f >= r->min && f <= r->max)
return 1;
return 0;
}
range_t *str2range(char *s)
{
float tmp_min, tmp_max;
char *endptr = s; // to start the loop
range_t *r = NULL;
int i;
if (!s)
return NULL;
for (i = 0; *endptr; i++) {
if (*s == ',')
goto out_err;
if (!(r = (range_t *) realloc(r, sizeof(*r) * (i + 2)))) {
printf("can't realloc 'r'\n");
return NULL;
}
tmp_min = strtod(s, &endptr);
if (*endptr == 'k' || *endptr == 'K') {
tmp_min *= 1000.0;
endptr++;
} else if (*endptr == 'm' || *endptr == 'M') {
tmp_min *= 1000000.0;
endptr++;
}
if (*endptr == '-') {
tmp_max = strtod(endptr + 1, &endptr);
if (*endptr == 'k' || *endptr == 'K') {
tmp_max *= 1000.0;
endptr++;
} else if (*endptr == 'm' || *endptr == 'M') {
tmp_max *= 1000000.0;
endptr++;
}
if (*endptr != ',' && *endptr)
goto out_err;
} else if (*endptr == ',' || !*endptr) {
tmp_max = tmp_min;
} else
goto out_err;
r[i].min = tmp_min;
r[i].max = tmp_max;
if (r[i].min < 0 || r[i].max < 0)
goto out_err;
s = endptr + 1;
}
r[i].min = r[i].max = -1;
return r;
out_err:
if (r)
free(r);
return NULL;
}
/* Borrowed from vo_fbdev.c END */
#endif

16
libvo/video_out.h
View File

@ -241,4 +241,20 @@ extern float vo_fps;
extern char *vo_subdevice;
#if defined(HAVE_FBDEV)||defined(HAVE_VESA)
typedef struct {
float min;
float max;
} range_t;
extern float range_max(range_t *r);
extern int in_range(range_t *r, float f);
extern range_t *str2range(char *s);
extern char *monitor_hfreq_str;
extern char *monitor_vfreq_str;
extern char *monitor_dotclock_str;
#endif
#endif

79
libvo/vo_fbdev.c
View File

@ -57,6 +57,14 @@ static signed int pre_init_err = -2;
* fb.modes support *
******************************/
extern char *monitor_hfreq_str;
extern char *monitor_vfreq_str;
extern char *monitor_dotclock_str;
static range_t *monitor_hfreq = NULL;
static range_t *monitor_vfreq = NULL;
static range_t *monitor_dotclock = NULL;
typedef struct {
char *name;
uint32_t xres, yres, vxres, vyres, depth;
@ -396,18 +404,6 @@ static float vsf(fb_mode_t *m) //vertical scan frequency
return hsf(m) / vtotal;
}
typedef struct {
float min;
float max;
} range_t;
static int in_range(range_t *r, float f)
{
for (/* NOTHING */; (r->min != -1 && r->max != -1); r++)
if (f >= r->min && f <= r->max)
return 1;
return 0;
}
static int mode_works(fb_mode_t *m, range_t *hfreq, range_t *vfreq,
range_t *dotclock)
@ -558,58 +554,6 @@ static void fb_mode2fb_vinfo(fb_mode_t *m, struct fb_var_screeninfo *v)
v->vmode = m->vmode;
}
static range_t *str2range(char *s)
{
float tmp_min, tmp_max;
char *endptr = s; // to start the loop
range_t *r = NULL;
int i;
if (!s)
return NULL;
for (i = 0; *endptr; i++) {
if (*s == ',')
goto out_err;
if (!(r = (range_t *) realloc(r, sizeof(*r) * (i + 2)))) {
printf("can't realloc 'r'\n");
return NULL;
}
tmp_min = strtod(s, &endptr);
if (*endptr == 'k' || *endptr == 'K') {
tmp_min *= 1000.0;
endptr++;
} else if (*endptr == 'm' || *endptr == 'M') {
tmp_min *= 1000000.0;
endptr++;
}
if (*endptr == '-') {
tmp_max = strtod(endptr + 1, &endptr);
if (*endptr == 'k' || *endptr == 'K') {
tmp_max *= 1000.0;
endptr++;
} else if (*endptr == 'm' || *endptr == 'M') {
tmp_max *= 1000000.0;
endptr++;
}
if (*endptr != ',' && *endptr)
goto out_err;
} else if (*endptr == ',' || !*endptr) {
tmp_max = tmp_min;
} else
goto out_err;
r[i].min = tmp_min;
r[i].max = tmp_max;
if (r[i].min < 0 || r[i].max < 0)
goto out_err;
s = endptr + 1;
}
r[i].min = r[i].max = -1;
return r;
out_err:
if (r)
free(r);
return NULL;
}
/******************************
* vo_fbdev *
@ -619,14 +563,7 @@ out_err:
char *fb_dev_name = NULL;
char *fb_mode_cfgfile = "/etc/fb.modes";
char *fb_mode_name = NULL;
char *monitor_hfreq_str = NULL;
char *monitor_vfreq_str = NULL;
char *monitor_dotclock_str = NULL;
/* fb.modes related variables */
static range_t *monitor_hfreq = NULL;
static range_t *monitor_vfreq = NULL;
static range_t *monitor_dotclock = NULL;
static fb_mode_t *fb_mode = NULL;
/* vt related variables */

76
libvo/vo_vesa.c
View File

@ -16,7 +16,7 @@
- refresh rate support (need additional info from mplayer)
*/
#include "config.h"
#include "gtf.h"
#include <stdio.h>
#ifdef HAVE_MALLOC_H
#include <malloc.h>
@ -54,6 +54,10 @@ extern vo_functions_t video_out_png;
extern int verbose;
extern char *monitor_hfreq_str;
extern char *monitor_vfreq_str;
extern char *monitor_dotclock_str;
#define MAX_BUFFERS 3
#ifndef max
@ -523,18 +527,69 @@ unsigned fillMultiBuffer( unsigned long vsize, unsigned nbuffs )
return i;
}
static int set_refresh(unsigned x, unsigned y, unsigned mode,struct VesaCRTCInfoBlock *crtc_pass)
{
unsigned pixclk;
float H_freq;
range_t *monitor_hfreq = NULL;
range_t *monitor_vfreq = NULL;
range_t *monitor_dotclock = NULL;
monitor_hfreq = str2range(monitor_hfreq_str);
monitor_vfreq = str2range(monitor_vfreq_str);
monitor_dotclock = str2range(monitor_dotclock_str);
if (!monitor_hfreq || !monitor_vfreq || !monitor_dotclock) {
printf("vo_vesa: you have to specify the capabilities of"
" the monitor. Not changing refresh rate.\n");
return 0;
}
H_freq = range_max(monitor_hfreq)/1000;
// printf("H_freq MAX %f\n",H_freq);
do
{
H_freq -= 0.1;
GTF_calcTimings(x,y,H_freq,GTF_HF,0, 0,crtc_pass);
// printf("PixelCLK %d\n",(unsigned)crtc_pass->PixelClock);
}
while (!in_range(monitor_vfreq,crtc_pass->RefreshRate/100));
pixclk = crtc_pass->PixelClock;
// printf("PIXclk before %d\n",pixclk);
vbeGetPixelClock(&mode,&pixclk);
// printf("PIXclk after %d\n",pixclk);
GTF_calcTimings(x,y,pixclk/1000000,GTF_PF,0,0,crtc_pass);
// printf("Flags: %x\n",(unsigned) crtc_pass->Flags);
/*
printf("hTotal %d\n",crtc_pass->hTotal);
printf("hSyncStart %d\n",crtc_pass->hSyncStart);
printf("hSyncEnd %d\n",crtc_pass->hSyncEnd);
printf("vTotal %d\n",crtc_pass->vTotal);
printf("vSyncStart %d\n",crtc_pass->vSyncStart);
printf("vSyncEnd %d\n",crtc_pass->vSyncEnd);
printf("RR %d\n",crtc_pass->RefreshRate);
printf("PixelCLK %d\n",(unsigned)crtc_pass->PixelClock);*/
return 1;
}
/* fullscreen:
* bit 0 (0x01) means fullscreen (-fs)
* bit 1 (0x02) means mode switching (-vm)
* bit 2 (0x04) enables software scaling (-zoom)
* bit 3 (0x08) enables flipping (-flip) (NK: and for what?)
*/
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,const vo_tune_info_t *info)
{
struct VbeInfoBlock vib;
struct VbeInfoBlock vib;
struct VesaModeInfoBlock vmib;
struct VesaCRTCInfoBlock crtc_pass;
size_t i,num_modes;
uint32_t w,h;
unsigned short *mode_ptr,win_seg;
@ -831,11 +886,26 @@ config(uint32_t width, uint32_t height, uint32_t d_width, uint32_t d_height, uin
PRINT_VBE_ERR("vbeSaveState",err);
return -1;
}
if((err=vbeSetMode(video_mode,NULL)) != VBE_OK)
/* TODO: check for VBE 3, monitor limitation
user might pass refresh value
GTF constants might be read from monitor
for best results
*/
if (((int)(vib.VESAVersion >> 8) & 0xff) > 2) {
if (set_refresh(dstW,dstH,video_mode,&crtc_pass))
video_mode = video_mode | 0x800;
}
;
if ((err=vbeSetMode(video_mode,&crtc_pass)) != VBE_OK)
{
PRINT_VBE_ERR("vbeSetMode",err);
return -1;
}
/* Now we are in video mode!!!*/
/* Below 'return -1' is impossible */
if(verbose)

20
linux/vbelib.c
View File

@ -376,6 +376,26 @@ int vbeGetMode(unsigned *mode)
return retval;
}
int vbeGetPixelClock(unsigned *mode,unsigned *pixel_clock) // in Hz
{
struct LRMI_regs r;
int retval;
memset(&r,0,sizeof(struct LRMI_regs));
r.eax = 0x4f0b;
r.ebx = 0;
r.edx = *mode;
r.ecx = *pixel_clock;
if(!VBE_LRMI_int(0x10,&r)) return VBE_VM86_FAIL;
retval = r.eax & 0xffff;
if(retval == 0x4f)
{
*pixel_clock = r.ecx;
retval = VBE_OK;
}
return retval;
}
int vbeSaveState(void **data)
{
struct LRMI_regs r;

1
linux/vbelib.h
View File

@ -199,6 +199,7 @@ extern int vbeGetControllerInfo(struct VbeInfoBlock *);
extern int vbeGetModeInfo(unsigned mode,struct VesaModeInfoBlock *);
extern int vbeSetMode(unsigned mode,struct VesaCRTCInfoBlock *);
extern int vbeGetMode(unsigned *mode);
extern int vbeGetPixelClock(unsigned *mode,unsigned *pixel_clock);
extern int vbeSaveState(void **data); /* note never copy this data */
extern int vbeRestoreState(void *data);
extern int vbeGetWindow(unsigned *win_num); /* win_A=0 or win_B=1 */