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mpv/libvo/vo_dga.c
mgraffam efa3b5b6bc Added support to vo_dga to change the video mode to the lowest resolution 
that is larger (or equal to) the video stream. Also, by using the -x and -y
options the user can specify a specific video mode. Changed the
DOCS/AUTHORS file to reflect this patch so that flames get sent to me :)


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@222 b3059339-0415-0410-9bf9-f77b7e298cf2
2001-03-27 04:29:22 +00:00

420 lines
11 KiB
C
Raw Blame History

#define DISP
/*
* video_out_dga.c, X11 interface
*
*
* Copyright ( C ) 2001, Andreas Ackermann. All Rights Reserved.
*
* <acki@acki-netz.de>
*
* note well:
*
* o this is alpha
* o covers only common video card formats
* o works only on intel architectures
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "linux/keycodes.h"
#include "config.h"
#include "video_out.h"
#include "video_out_internal.h"
#include "yuv2rgb.h"
LIBVO_EXTERN( dga )
#include <X11/Xlib.h>
#include <X11/extensions/xf86dga.h>
#include "x11_common.h"
static vo_info_t vo_info =
{
"DGA ( Direct Graphic Access )",
"dga",
"Andreas Ackermann <acki@acki-netz.de>",
""
};
static int vo_dga_width; // bytes per line in framebuffer
static int vo_dga_vp_width; // visible pixels per line in framebuffer
static int vo_dga_vp_height; // visible lines in framebuffer
static int vo_dga_is_running = 0;
static int vo_dga_src_width; // width of video in pixels
static int vo_dga_src_height; // height of video in pixels
static int vo_dga_bpp; // bytes per pixel in framebuffer
static int vo_dga_src_offset=0; // offset in src
static int vo_dga_vp_offset=0; // offset in dest
static int vo_dga_bytes_per_line; // longwords per line to copy
static int vo_dga_src_skip; // bytes to skip after copying one line
// (not supported yet) in src
static int vo_dga_vp_skip; // dto. for dest
static int vo_dga_lines; // num of lines to copy
static int vo_dga_src_format;
static unsigned char *vo_dga_base;
static Display *vo_dga_dpy;
#include "mmx.h"
#if defined (HAVE_SSE) || defined (HAVE_3DNOW)
#define movntq "movntq" // use this for processors that have SSE or 3Dnow
#else
#define movntq "movq" // for MMX-only processors
#endif
#define rep_movsl(dest, src, numwords, d_add, count) \
__asm__ __volatile__( \
" \
xfer: \n\t\
movl %%edx, %%ecx \n\t \
cld\n\t \
rep\n\t \
movsl \n\t\
add %%eax, %%edi \n\t\
dec %%ebx \n\t\
jnz xfer \n\t\
" \
: \
: "a" (d_add), "b" (count), "S" (src), "D" (dest), "d" (numwords) \
: "memory" )
#if 0
: "S" (src), "D" (dest), "c" (numwords) \
movq (%%eax), %%mm0 \n\t \
add $64, %%edx \n\t \
movq 8(%%eax), %%mm1 \n\t \
add $64, %%eax \n\t \
movq -48(%%eax), %%mm2 \n\t \
movq %%mm0, -64(%%edx) \n\t \
movq -40(%%eax), %%mm3 \n\t \
movq %%mm1, -56(%%edx) \n\t \
movq -32(%%eax), %%mm4 \n\t \
movq %%mm2, -48(%%edx) \n\t \
movq -24(%%eax), %%mm5 \n\t \
movq %%mm3, -40(%%edx) \n\t \
movq -16(%%eax), %%mm6 \n\t \
movq %%mm4, -32(%%edx) \n\t \
movq -8(%%eax), %%mm7 \n\t \
movq %%mm5, -24(%%edx) \n\t \
movq %%mm6, -16(%%edx) \n\t \
dec %%ecx \n\t \
movq %%mm7, -8(%%edx) \n\t \
jnz xfer \n\t \
#endif
#define mmx_movsl(dest, src, numwords) \
__asm__ __volatile__( \
" \
\n\t \
xfer: \n\t \
movq (%%eax), %%mm0 \n\t \
add $64, %%edx \n\t \
movq 8(%%eax), %%mm1 \n\t \
add $64, %%eax \n\t \
movq -48(%%eax), %%mm2 \n\t \
movq %%mm0, -64(%%edx) \n\t \
movq -40(%%eax), %%mm3 \n\t \
movq %%mm1, -56(%%edx) \n\t \
movq -32(%%eax), %%mm4 \n\t \
movq %%mm2, -48(%%edx) \n\t \
movq -24(%%eax), %%mm5 \n\t \
movq %%mm3, -40(%%edx) \n\t \
movq -16(%%eax), %%mm6 \n\t \
movq %%mm4, -32(%%edx) \n\t \
movq -8(%%eax), %%mm7 \n\t \
movq %%mm5, -24(%%edx) \n\t \
movq %%mm6, -16(%%edx) \n\t \
dec %%ecx \n\t \
movq %%mm7, -8(%%edx) \n\t \
jnz xfer \n\t \
\
" \
: \
: "a" (src), "d" (dest), "c" (numwords) \
: "memory" )
// src <= eax
// dst <= edx
// num <= ecx
static uint32_t draw_frame( uint8_t *src[] ){
int vp_skip = vo_dga_vp_skip;
int lpl = vo_dga_bytes_per_line >> 2;
int numlines = vo_dga_lines;
char *s, *d;
if( vo_dga_src_format==IMGFMT_YV12 ){
// We'll never reach this point, because YV12 codecs always calls draw_slice
printf("vo_dga: draw_frame() doesn't support IMGFMT_YV12 (yet?)\n");
}else{
s = *src;
d = (&((char *)vo_dga_base)[vo_dga_vp_offset]);
rep_movsl(d, s, lpl, vo_dga_vp_skip, numlines );
}
return 0;
}
static void check_events(void)
{
int e=vo_x11_check_events(vo_dga_dpy);
}
static void flip_page( void ){
check_events();
// printf("vo_dga: In flippage\n");
}
static uint32_t draw_slice( uint8_t *src[],int stride[],
int w,int h,int x,int y )
{
// printf("vo_dga: draw_slice() not implemented (yet?)\n");
yuv2rgb( vo_dga_base + vo_dga_vp_offset +
(vo_dga_width * y +x) * vo_dga_bpp,
src[0], src[1], src[2],
w,h, vo_dga_width * vo_dga_bpp,
stride[0],stride[1] );
return 0;
return 0;
};
static void Terminate_Display_Process( void ){
printf("vo_dga: Terminating display process\n");
}
static const vo_info_t* get_info( void )
{ return &vo_info; }
static uint32_t query_format( uint32_t format )
{
printf("vo_dga: query_format\n");
if( !vo_init() ) return 0; // Can't open X11
printf("Format: %lx\n", format);
if( format==IMGFMT_YV12 ) return 1;
if( ( format&IMGFMT_BGR_MASK )==IMGFMT_BGR &&
( format&0xFF )==vo_depthonscreen ) return 1;
return 0;
}
static void
uninit(void)
{
vo_dga_is_running = 0;
printf("vo_dga: in uninit\n");
XUngrabPointer (vo_dga_dpy, CurrentTime);
XUngrabKeyboard (vo_dga_dpy, CurrentTime);
XF86DGADirectVideo (vo_dga_dpy, XDefaultScreen(vo_dga_dpy), 0);
XCloseDisplay(vo_dga_dpy);
}
static uint32_t init( uint32_t width, uint32_t height,
uint32_t d_width,uint32_t d_height,
uint32_t fullscreen,char *title,uint32_t format )
{
int bank, ram;
int x_off, y_off;
// needed to change DGA video mode
int modecount,mX, mY, X, Y, i,j;
XDGAMode *modelines=NULL;
XDGADevice *dgadevice;
if( vo_dga_is_running )return -1;
if( !vo_init() ){
printf("vo_dga: vo_init() failed!\n");
return 0;
}
if((vo_dga_dpy = XOpenDisplay(0))==NULL)
{
printf ("vo_dga: Can't open display\n");
return 1;
}
// Code to change the video mode added by Michael Graffam
// mgraffam@idsi.net
if (modelines==NULL)
modelines=XDGAQueryModes(vo_dga_dpy, XDefaultScreen(vo_dga_dpy),&modecount);
mX=modelines[0].imageWidth;
mY=modelines[0].imageHeight;
X=d_width; Y=d_height;
j=0;
for (i=1; i<=modecount; i++)
{
if ( (modelines[i].bitsPerPixel == vo_depthonscreen) &&
(modelines[i].maxViewportX) &&
(modelines[i].viewportWidth >= X) &&
(modelines[i].viewportHeight >= Y) &&
(modelines[i].viewportWidth < mX) &&
(modelines[i].viewportHeight < mY) )
{
mX=modelines[i].viewportWidth;
mY=modelines[i].viewportHeight;
j=i;
}
}
X=(modelines[j].imageWidth-mX)/2;
Y=(modelines[j].imageHeight-mY)/2;
printf("vo_dga: Selected video mode %dx%d for image size %dx%d.\n", mX, mY,width, height);
XF86DGASetViewPort (vo_dga_dpy, XDefaultScreen(vo_dga_dpy), X,Y);
dgadevice=XDGASetMode(vo_dga_dpy, XDefaultScreen(vo_dga_dpy), modelines[j].num);
XDGASync(vo_dga_dpy, XDefaultScreen(vo_dga_dpy));
XFree(modelines);
XFree(dgadevice);
// end mode change code
XF86DGAGetVideo (vo_dga_dpy, XDefaultScreen(vo_dga_dpy),
(char **)&vo_dga_base, &vo_dga_width, &bank, &ram);
vo_dga_vp_width=modelines[j].viewportWidth;
vo_dga_vp_height=modelines[j].viewportHeight;
// do some more checkings here ...
if( format==IMGFMT_YV12 )
yuv2rgb_init( vo_depthonscreen, MODE_RGB );
vo_dga_src_format = format;
vo_dga_src_width = width;
vo_dga_src_height = height;
vo_dga_bpp = (vo_depthonscreen+7) >> 3;
printf("vo_dga: bytes/line: %d, screen res: %dx%d, depth: %d, base: %08x, bpp: %d\n",
vo_dga_width, vo_dga_vp_width,
vo_dga_vp_height, vo_depthonscreen, vo_dga_base,
vo_dga_bpp);
printf("vo_dga: video res: %dx%d\n", vo_dga_src_width, vo_dga_src_height);
if(vo_dga_src_width > vo_dga_vp_width ||
vo_dga_src_height > vo_dga_vp_height){
printf("vo_dga: Sorry, video larger than viewport is not yet supported!\n");
// ugly, do something nicer in the future ...
return 1;
}
x_off = (vo_dga_vp_width - vo_dga_src_width)>>1;
y_off = (vo_dga_vp_height - vo_dga_src_height)>>1;
vo_dga_bytes_per_line = vo_dga_src_width * vo_dga_bpp; // todo
vo_dga_lines = vo_dga_src_height; // todo
vo_dga_src_offset = 0;
vo_dga_vp_offset = (y_off * vo_dga_width + x_off ) * vo_dga_bpp;
vo_dga_vp_skip = (vo_dga_width - vo_dga_src_width) * vo_dga_bpp; // todo
printf("vo_dga: vp_off=%d, vp_skip=%d, bpl=%d\n",
vo_dga_vp_offset, vo_dga_vp_skip, vo_dga_bytes_per_line);
XF86DGADirectVideo (vo_dga_dpy, XDefaultScreen(vo_dga_dpy),
XF86DGADirectGraphics | XF86DGADirectMouse |
XF86DGADirectKeyb);
XGrabKeyboard (vo_dga_dpy, DefaultRootWindow(vo_dga_dpy), True,
GrabModeAsync,GrabModeAsync, CurrentTime);
XGrabPointer (vo_dga_dpy, DefaultRootWindow(vo_dga_dpy), True,
ButtonPressMask,GrabModeAsync, GrabModeAsync,
None, None, CurrentTime);
// now clear screen
memset(vo_dga_base, 0, vo_dga_width * vo_dga_vp_height * vo_dga_bpp);
vo_dga_is_running = 1;
return 0;
}
#if 0
int vo_dga_query_event(void){
XEvent myevent;
char text[10];
KeySym mykey;
int retval = 0;
int i;
if( vo_dga_is_running ){
if(XPending(vo_dga_dpy)>0)
{
XNextEvent(vo_dga_dpy, &myevent);
switch (myevent.type)
{
case ButtonPress:
/* Reaktion auf Knopfdruck ---> Textausgabe an der
Mauscursorposition */
retval = 'q';
break;
case KeyPress:
/* Reaktion auf Tastendruck --> Testen ob Taste == "q",
falls ja: Programmende */
i=XLookupString(&myevent, text, 10, &mykey, 0);
if (mykey&0xff00 != 0) mykey=mykey&0x00ff + 256;
switch ( mykey )
{
case wsLeft: retval=KEY_LEFT; break;
case wsRight: retval=KEY_RIGHT; break;
case wsUp: retval=KEY_UP; break;
case wsDown: retval=KEY_DOWN; break;
case wsSpace: retval=' '; break;
case wsEscape: retval=KEY_ESC; break;
case wsEnter: retval=KEY_ENTER; break;
case wsq:
case wsQ: retval='q'; break;
case wsp:
case wsP: retval='p'; break;
case wsMinus:
case wsGrayMinus: retval='-'; break;
case wsPlus:
case wsGrayPlus: retval='+'; break;
}
break;
}
}
}
return retval;
}
#endif
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