[Mesa-users] eglInitialize

[Alberich de megres]

I'm using:

- libdrm 2.4.23 with nouveau support
- Mesa from git repo (las update Dec 14th)
- Nvidia NV43 device (Geforce go 6200/6400)
- using nouveau
- kernel 2.6.36 custom with this config:
graphics support
 |-> <M> Direct Rendering Manager
 |-> <M> Low level video output switch controls
 |-> {*} Support for frame buffer devices
                 |->[*] Enable Video Mode Handling Helpers
                 |->[*] Enable Tile blitting support
                 |-> <M> VGA 16-color
                 |-> [*] Vesa VGA graphics
 |-> VGA text console
                 |-> All options built in kernel

modetest says my connector id is 7 so I tried modetest -s 7:1 with this error
DRM_IOCTL_I915_GEM_APERTURE failed: Invalid argument
Assuming 131072Kb available aperture size
May lead to reduced performance or incorrect rendering
get chip id failed; -1
param 4, val: 0
failed to alloc buffer: Invalid argument


Thanks!!

On Fri, Dec 31, 2010 at 3:41 PM, Chia-I Wu <olvaffe at gmail.com> wrote:
> On Fri, Dec 31, 2010 at 10:06 PM, Alberich de megres
> <alberich2k5 at gmail.com> wrote:
>> sorry to repost again,
>> but I attached a screenshoot with what happens to me.
>>
>> With single buffer, just adding glFlush() and a black clear color i
>> get the result I want.
>> But if I change the color, no matter wich, i allways the same get the
>> screen attached (even with the same color)
> I am not sure what goes wrong.  You might want to try modeset from
> libdrm to see if kernel modesetting is working for you (use the -s
> option).  It might also be helpful to list your
> hardware/kernel/mesa/drm versions so that others with a similar
> environment may help.
>
>> thanks!
>>
>> On Fri, Dec 31, 2010 at 12:32 PM, Alberich de megres
>> <alberich2k5 at gmail.com> wrote:
>>> Oh, sorry for the type, i was trying different clear color and at the
>>> end I didn't change it back.
>>>
>>> But on wayland the server doesn't call glFlush. How it render/draws
>>> the background then?
>>>
>>> Also I tried drmModePageFlip, to change buffers, but i cannot get rid
>>> of these wierd things (like lots of thin columns).
>>>
>>> thanks!
>>>
>>> On Fri, Dec 31, 2010 at 10:11 AM, Chia-I Wu <olvaffe at gmail.com> wrote:
>>>> On Thu, Dec 30, 2010 at 2:26 AM, Alberich de megres
>>>> <alberich2k5 at gmail.com> wrote:
>>>>> I found my error, I compiled a kernel and forgot some kms options. So
>>>>> now i can get a DRMDisplay
>>>>>
>>>>> But, now I got a different problem:
>>>>> I can set a mode, using drm. And I set up the minimun so i should be
>>>>> able to clean the backgound (or the buffer) to white and see the
>>>>> screen on white. But what i really get is weird things like lots of
>>>>> columns...
>>>>>
>>>>> Is there some place where i can read about drm+egl? My init code is
>>>>> barely copy+paste from wayland..
>>>>>
>>>>> I attached the code, don't blame me for the code (copy+paste stuff)
>>>>> i'm only trying to understand how drm+egl works so i can create one by
>>>>> my own.
>>>> Since you are rendering to rbo[0], you should use fb_id[0] in
>>>> drmModeSetCrtc.  You also need to call glFlush at the end of
>>>> draw_scene.  The clear color is black, not white as you said.
>>>>
>>>> These should be enough to see the correct result on screen.  But you
>>>> might want to go further to implement double buffering (switch between
>>>> rbo[0] and rbo[1], and flip between fb_id[0] and fb_id[1]).
>>>>
>>>>> thanks!
>>>>>
>>>>>
>>>>> On Mon, Dec 20, 2010 at 1:55 PM, Chia-I Wu <olvaffe at gmail.com> wrote:
>>>>>> On Tue, Dec 14, 2010 at 5:24 PM, Alberich de megres
>>>>>> <alberich2k5 at gmail.com> wrote:
>>>>>>> Hi !!
>>>>>>>
>>>>>>> I got a problem while initializing egl, using the source on git repo:
>>>>>>> git clone git://anongit.freedesktop.org/mesa/mesa
>>>>>>>
>>>>>>> So what i do is first
>>>>>>>
>>>>>>> display = (EGLDisplay) eglGetDRMDisplayMESA(fd);
>>>>>>> if (display == NULL) return -1;
>>>>>>>
>>>>>>> if (!eglInitialize(display, &major, &minor)) {
>>>>>>> ... error check
>>>>>>> }
>>>>>>>
>>>>>>> When I do that i receive a message:
>>>>>>> libEGL warning: failed to create DRM screen
>>>>>>>
>>>>>>> And sometimes i get this other on the same point:
>>>>>>> libEGL warning: failed to create DRM screen
>>>>>>> libEGL warning: EGL-DRI2: malformed or no PCI ID
>>>>>>>
>>>>>>> I tried with both nourveau modeset=1, and radeon modeset=1
>>>>>>>
>>>>>>> I compiled libdrm with the following options:
>>>>>>> ./configure --enable-nouveau-experimental-api --enable-vmwgfx-experimental-api
>>>>>>>
>>>>>>> And mesa with the following:
>>>>>>> ./configure --with-dri-drivers=nouveau --enable-glx-tls
>>>>>>> --with-driver=dri --enable-xcb --disable-glut  --enable-egl
>>>>>>> --enable-gles2 --with-egl-platforms=drm --disable-gallium
>>>>>>>
>>>>>>> Also i tried those recomended on wayland site:
>>>>>>> ./configure  --enable-egl --enable-gles2
>>>>>>>
>>>>>>> Can any one point me some light?
>>>>>> The configure options look fine.  It is not clear what might have gone
>>>>>> wrong.  Can you try again with EGL_LOG_LEVEL=debug set?
>>>>>>
>>>>>>> thanks!
>>>>>>> Albert
>>>>>>> _______________________________________________
>>>>>>> mesa-users mailing list
>>>>>>> mesa-users at lists.freedesktop.org
>>>>>>> http://lists.freedesktop.org/mailman/listinfo/mesa-users
>>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> olv at LunarG.com
>>>>>>
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> olv at LunarG.com
>>>>
>>>
>>
>
>
>
> --
> olv at LunarG.com
>