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Re: [Mesa3d-users] Mesa sh4-STLinux.
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From: Gabriel Z. <gab...@gm...> - 2009-08-13 14:09:21
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Hi,
here is my simplified directfb+mesa example which i tested on arm based
board and it worked without any problems. If your directfb/mesa is compiled
OK you shouldn't have any problems running it as well. Its simply just a red
triangle rotating in front of white background forever.. I compiled it like
this:
arm-linux-g++ -I/usr/local/arm/include -I/usr/local/arm/include/directfb
-L/usr/local/arm/lib -lGL -lGLU -ldirectfb -lfusion -ldirect -o test
./test.cxx
the standard directfb output was this:
#
./test
~~~~~~~~~~~~~~~~~~~~~~~~~~| DirectFB 1.4.0
|~~~~~~~~~~~~~~~~~~~~~~~~~~
(c) 2001-2009 The world wide DirectFB Open Source
Community
(c) 2000-2004 Convergence (integrated media)
GmbH
----------------------------------------------------------------
(*) DirectFB/Core: Multi Application Core.
(2009-07-17_08:03)
(*) Direct/Memcpy: Using
armasm_memcpy()
(*) Fusion/Init: Builtin Implementation is still experimental!
Crash/Deadlocks might occur!
(*) Fusion/SHM: Using MADV_REMOVE (2.6.29.0 >=
2.6.19.2)
(*) Direct/Thread: Started 'Fusion Dispatch' (562) [MESSAGING OTHER/OTHER
0/0] <8388608>...
(*) Direct/Thread: Started 'VT Switcher' (565) [CRITICAL OTHER/OTHER 0/0]
<8388608>...
(*) Direct/Thread: Started 'VT Flusher' (-1) [DEFAULT OTHER/OTHER 0/0]
<8388608>...
(*) DirectFB/FBDev: Found 's3c2410fb' (ID 0) with frame buffer at
0x33900000, 150k (MMIO 0x00000000, 0k)
(*) DirectFB/Graphics: Generic Software Rasterizer 0.6 (directfb.org)
(*) DirectFB/Core/WM: Default 0.3 (directfb.org)
(*) FBDev/Mode: Setting 240x320
RGB16
(*) FBDev/Mode: Switched to 240x320 (virtual 240x320) at 16 bit (RGB16),
pitch 480
(*) FBDev/Surface: Allocated 240x320 16 bit RGB16 buffer (index 0) at offset
0 and pitch 480.
(*) FBDev/Mode: Setting 240x320
RGB16
(*) FBDev/Mode: Switched to 240x320 (virtual 240x320) at 16 bit (RGB16),
pitch 480
(*) FBDev/Surface: Allocated 240x320 16 bit RGB16 buffer (index 0) at offset
0 and pitch 480.
(*) Direct/Interface: Loaded 'Mesa' implementation of 'IDirectFBGL'.
and finally the source of the test follows:
test.cxx
-------------------------------------------------------------------------------------------------------------------------------
/*
directfb/mesa test example
Written by Gabriel Zabusek <gabriel.zabusek_at_gmail.com>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
#include <unistd.h>
#include <GL/gl.h>
#include <GL/glu.h>
#include <directfb.h>
#include <directfbgl.h>
#include <iostream>
#include <sstream>
#include <string>
using namespace std;
IDirectFB *dfb;
IDirectFBSurface *primary;
IDirectFBGL *primary_gl;
#define DFBCHECK(x...) \
{ \
err =
x; \
if (err != DFB_OK)
{ \
fprintf( stderr, "%s <%d>:\n\t", __FILE__, __LINE__
); \
DirectFBErrorFatal( #x, err
); \
} \
}
static int screen_width, screen_height;
void InitGL(void)
{
glClearColor(0.f, 0.f, 0.f, 0.f);
glClearDepth(1.0);
glDepthFunc(GL_LESS);
glEnable(GL_DEPTH_TEST);
glShadeModel(GL_FLAT);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(45.0f,(GLfloat)screen_width/(GLfloat)screen_height,0.1f,100.0f);
// Calculate The Aspect Ratio Of The Window
glMatrixMode(GL_MODELVIEW);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glLoadIdentity();
}
unsigned int angle_troj = 0;
unsigned int angle_spce = 0;
unsigned int angle_stvo = 0;
void DrawGLScene()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glLoadIdentity();
glPushMatrix();
glTranslatef(-1.5f,0.0f,-10.0f);
angle_troj+=2;
angle_stvo+=4;
glPushMatrix();
glRotatef(angle_troj, 0.f,1.f,0.f);
// draw a triangle
glBegin(GL_POLYGON);
glColor3f(1.f,0.f,0.f);
glVertex3f( 0.0f, 1.0f, 0.0f);
glColor3f(0.f,1.f,0.f);
glVertex3f( 1.0f,-1.0f, 0.0f);
glColor3f(0.f,0.f,1.f);
glVertex3f(-1.0f,-1.0f, 0.0f);
glEnd();
glPopMatrix();
glFlush();
glPopMatrix();
}
int main( int argc, char *argv[] )
{
int quit = 0;
DFBResult err;
DFBSurfaceDescription dsc;
DFBCHECK(DirectFBInit( &argc, &argv ));
DFBCHECK(DirectFBCreate( &dfb ));
dfb->SetCooperativeLevel( dfb, DFSCL_FULLSCREEN );
dsc.flags = DSDESC_CAPS;
dsc.caps = (DFBSurfaceCapabilities)(DSCAPS_PRIMARY | DSCAPS_DOUBLE);
DFBCHECK(dfb->CreateSurface( dfb, &dsc, &primary ));
DFBCHECK(primary->GetSize( primary, &screen_width, &screen_height ));
DFBCHECK(primary->FillRectangle( primary, 0, 0, screen_width,
screen_height ));
primary->Flip( primary, NULL, (DFBSurfaceFlipFlags)0 );
DFBCHECK(primary->GetGL( primary, &primary_gl ));
DFBCHECK(primary_gl->Lock( primary_gl ));
//init GL
InitGL();
DFBCHECK(primary_gl->Unlock( primary_gl ));
while (1) {
DFBCHECK(primary_gl->Lock( primary_gl ));
//draw stuff
DrawGLScene();
DFBCHECK(primary_gl->Unlock( primary_gl ));
primary->Flip( primary, NULL, (DFBSurfaceFlipFlags)0 );
}
primary_gl->Release( primary_gl );
primary->Release( primary );
dfb->Release( dfb );
return 0;
}
Hope this helps you solve your issue!
Have a nice day,
Gabriel Zabusek
On Thu, Aug 13, 2009 at 2:54 PM, Christophe Khamly <wet...@gm...>wrote:
> Hi,
>
> I compiled mesa using directfb under sh4 architechture for my Set-top-box.
> The compilation was completed successfuly. But I tried to run a demo like
> gears, unfortunately nothing is displaying on the screen.
> The directfb layer works fine, I can blit a gif on my TV screen through
> HDMI connection.
> So maybe someone knows where the problem come from?
> Might be caused by swapbuffers?
>
> Thanks for your answers
>
> --
> Christophe KHAMLY
>
>
>
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