Re: LuaJIT - When using FFI, trace aborts due to "symbol not in cache"

[Benjamin Segovia <segovia.benjamin@...>]

I am not sure of your answer. The bindings work (i.e. I can call the
GL functions from luaJIT using the FFI) but the JIT compiler is not
able to generate the trace as far as I understand. It aborts upon the
call to glClear

On Sun, May 1, 2011 at 4:41 AM, Dimiter "malkia" Stanev
<malkia@gmail.com> wrote:
> Hi Benjamin,
>
> I have some FFI bindings for OpenGL, and they work for me: OSX (32-bit,
> 64-bit), Windows (32-bit, 64-bit) and Ubuntu 11.04 linux (and probably othes
> - again 32-bit and 64-bit).
>
> http://github.com/malkia/ufo - it comes with precompiled luajit, and few
> other dlls (glfw, anttweakbar, and zeromq).
>
> Thanks,
> Dimiter "malkia" Stanev
>
> On 4/30/11 9:07 PM, Benjamin Segovia wrote:
>>
>> Hello all,
>>
>> I am experimenting luaJIT and its FFI. Unfortunately, while trying to
>> process a rather big loop, the trace aborts on the first C function
>> call done via the FFI.
>>
>> Here, I load openGL symbols in "gl" via the FFI. When glClear (see
>> pasted code) is called, trace aborts with error "symbol not in cache"
>>
>> here is the code:
>>
>> function render_system:render()
>>   gl.glClear(gl.GL_COLOR_BUFFER_BIT)
>>
>>   -- all squares first
>>   local sq = self.render_world.square
>>   gl.glBegin(gl.GL_QUADS)
>>     for _,square in pairs(sq) do
>>       local c = square.color
>>       local p = square.center
>>       local s = square.size
>>       gl.glColor3f(c[1],c[2],c[3])
>>       gl.glVertex3f(p[1]+s[1], p[2]+s[2], p[3]+s[3])
>>       gl.glVertex3f(p[1]+s[1], p[2]-s[2], p[3]+s[3])
>>       gl.glVertex3f(p[1]-s[1], p[2]-s[2], p[3]+s[3])
>>       gl.glVertex3f(p[1]-s[1], p[2]+s[2], p[3]+s[3])
>>     end
>>   gl.glEnd()
>> end
>>
>> AM I doing something wrong? Or is it the normal behaviour?
>>
>> I just fetched the last luaJIT version from git HEAD.
>>
>> Thanks!
>> Ben
>>
>>
>
>
>