On Tue, Jul 30, 2013 at 2:06 AM, Thomas Senyk
<[email protected]>wrote:
> On Monday, 29 July, 2013 16:06:17 Rogerio Nunes wrote:
> > On Mon, Jul 29, 2013 at 3:54 PM, Eric Nelson
> >
> > <[email protected]> wrote:
> > > Hi Rogerio,
> > >
> > > On 07/29/2013 12:29 PM, Rogerio Nunes wrote:
> > >> My apologies, Eric.
> > >>
> > >> I misread your email the first time.
> > >>
> > >> I'm trying a clean build now with master-next, but I'm having
> dependency
> > >> issues.
> > >> As soon as I fix this I'll look into glimagesink.
> > >
> > > I had some dependency issues as well, and I had to revert
> > > Abhijit's wayland patch (78936c1994cb2db102bd200123be976a7c051b98)
> > > to get past them.
> > >
> > > For some reason, with that patch, I was seeing the wayland version
> > > of some libraries, so configure failed on gst-plugins-gl.
> >
> > That's exactly the same issue I'm having here... no fb* symbols in
> > libEGL, so configure fails to link...
>
> I wonder if the fb* symbols should actually vanish?
>
> In a wl enabled version I've tested before I had both, wl_* and fb*
> symbols.
> .. and IMO this is the right way, because it enabled you to have opengl-
> based compositors and wayland-egl based clients with the same libraries.
>
>
> Also from a include/define perspective only if EGL_API_FB is set, it makes
> sense to set WL_EGL_PLATFORM.
> quote from eglvivante.h:
>
> ...
> #elif defined(LINUX) && defined(EGL_API_FB) && !defined(__APPLE__)
>
> #if defined(WL_EGL_PLATFORM)
> ...
>
>
> Does anyone know the reason why fb* symbols got removed from libEGL-wl.so?
>
Freescale probides framebuffer based backend implementation for weston,
which run
with libEGL-wl.so. So this does equate to libEGL-wl.so having fb* symbols.
I did check
that a few functions like `fbGetDisplayByIndex` `fbGetDisplayGeometry'
`fbCreateWindow'
are supported over libEGL-wl.so
I used the attached sample code to test fb on the imx6qsaberlite.
arm-none-linux-gnueabi-g++ fb_test.c -o n900gles -lEGL-wl -lGAL-wl
-lgc_wayland_protocol -lwayland-client -lffi -lwayland-server
Note the above never ending list of libs to link to. That where it gets
messy. GAL-wl lib throws in
dependencies over to Wayland client and server library and I ended up
adding them.
Regards,
Abhijit
>
> Greet
> Thomas
>
> >
> > Thanks.
> >
> > > Regards,
> > >
> > >
> > > Eric
> >
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>
#include <stdio.h>
#include <fcntl.h>
#include <linux/fb.h>
#include <sys/mman.h>
#include <errno.h>
#include <unistd.h>
#include <sys/ioctl.h>
#define LINUX
#define EGL_API_FB
#include <EGL/egl.h>
#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>
#include <EGL/eglvivante.h>
int
main( int argc, char *argv[] )
{
int fd;
struct fb_fix_screeninfo finfo;
struct fb_var_screeninfo vinfo;
void *fb;
int w, h;
int i, j;
int size;
int ret;
EGLNativeDisplayType eglNativeDisplay = fbGetDisplayByIndex( 0 );
int Width = 0, Height = 0;
fbGetDisplayGeometry( eglNativeDisplay, &Width, &Height);
printf( "Width = %d \n Height = %d\n", Width, Height);
fb = fbCreateWindow( eglNativeDisplay, 0, 0, Width , Height );
w = Width;
h = Height;
printf( "w %d, h%d\n", w, h );
printf("MMSFBDev: var screen info ------------\n");
printf(" xres = %d\n", vinfo.xres);
printf(" yres = %d\n", vinfo.yres);
printf(" xres_virtual = %d\n", vinfo.xres_virtual);
printf(" yres_virtual = %d\n", vinfo.yres_virtual);
printf(" xoffset = %d\n", vinfo.xoffset);
printf(" yoffset = %d\n", vinfo.yoffset);
printf(" bits_per_pixel = %d\n", vinfo.bits_per_pixel);
printf(" grayscale = %d\n", vinfo.grayscale);
printf(" red = %d(offs=%d)\n", vinfo.red.length, vinfo.red.offset);
printf(" green = %d(offs=%d)\n", vinfo.green.length, vinfo.green.offset);
printf(" blue = %d(offs=%d)\n", vinfo.blue.length, vinfo.blue.offset);
printf(" transp = %d(offs=%d)\n", vinfo.transp.length, vinfo.transp.offset);
printf(" nonstd = %d\n", vinfo.nonstd);
printf(" activate = %d\n", vinfo.activate);
printf(" height = %d\n", vinfo.height);
printf(" width = %d\n", vinfo.width);
printf(" accel_flags = %d\n", vinfo.accel_flags);
printf(" pixclock = %d\n", vinfo.pixclock);
printf(" left_margin = %d\n", vinfo.left_margin);
printf(" right_margin = %d\n", vinfo.right_margin);
printf(" upper_margin = %d\n", vinfo.upper_margin);
printf(" lower_margin = %d\n", vinfo.lower_margin);
printf(" hsync_len = %d\n", vinfo.hsync_len);
printf(" vsync_len = %d\n", vinfo.vsync_len);
printf(" sync = %d\n", vinfo.sync);
printf(" vmode = %d\n", vinfo.vmode);
printf(" rotate = %d\n", vinfo.rotate);
printf(" accel_flags = %d\n", vinfo.accel_flags);
printf(" reserved[5] = %d, %d, %d, %d, %d\n", vinfo.reserved[0], vinfo.reserved[1], vinfo.reserved[2], vinfo.reserved[3], vinfo.reserved[4]);
printf("MMSFBDev: var screen info ------------\n");
int VFL = vinfo.lower_margin + vinfo.upper_margin + vinfo.vsync_len + vinfo.yres;
int HFL = vinfo.right_margin + vinfo.left_margin + vinfo.hsync_len + vinfo.xres;
printf(" HFL = %d\n", HFL);
printf(" VFL = %d\n", VFL);
if ( HFL > 0 && VFL > 0 && vinfo.pixclock > 0 )
{
float refresh_rate = (1000000.0F * ( 1000000.0F / vinfo.pixclock )) / ( HFL * VFL ) ;
printf(" Refresh Rate = %f\n", refresh_rate);
}
else
{
printf(" Refresh Rate = unknown\n");
}
if ( argc == 2 ) {
#define BUF_SIZE 1280
static unsigned int buf[BUF_SIZE];
for ( i = 0; i < BUF_SIZE; i++ ) {
buf[i] = 0x0000FF00 | (i & 0xFF);
}
for ( i = 0; i < 390; i++ ) {
size += write( fd, buf, BUF_SIZE );
lseek( fd, (2048 - 1280), SEEK_CUR );
lseek( fd, 2, SEEK_CUR ); // for test
}
printf( "write size %d\n", size );
} else if ( argc == 3 ) {
unsigned int *vram;
unsigned int *ip;
size = 2048 * 390 * 4;
// do not use shared
// fb = mmap(0, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0)
;
fb = mmap(0, size, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0);
printf( "get frame buffer -> 0x%08X\n", fb );
if ( fb == (void * ) -1 ) {
printf( "fb mmap error %d (0x%X)\n", errno );
fflush( NULL );
goto err;
}
vram = (unsigned int *) fb;
for ( i = 0; i < 390; i++ ) {
ip = vram;
for ( j = 0; j < 1280; j++ ) {
*ip = 0x00FF0000 | ((i & 0xFF) << 8) | (j & 0xFF
);
ip++;
}
vram += 2048;
}
ret = munmap( fb, 0 );
if ( ret < 0 ) {
printf( "munmap failed %d\n", errno );
}
}
err:
close( fd );
return 0;
}
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