[Pharo-project] Making GLMorphic plugin work in Pharo
Hi, this is my first mail to the list so hello everybody. I've been trying to make GLMorphic work on pharo and got some useful results. I investigated the plugin that was needed to integrate into the VM and noticed it was really small, so I thought why make this in C if you can implement it directly in smalltalk. Shortly after that I came up with a translation of it (through FFI) so that you can use it with the VM as is. The code isn't something I'd call good, but it works fine (only windows, sorry). If you want to try it, you should do ScriptLoader loadFFI. and then download the GLMorphic-JEP version of GLMorphic package from squeaksource (after GLMorphic-sig? ). I also made some modifications to FFI-Examples, so you may also have to dowonload FF-Examples-JEP from squeakfoundation.org. I'm new to monticello so it wouldn't be strange if nothing got uploaded correctly. Some things work and most looks messed up, specially fonts... try World fullDrawOn: GLDisplayScreen testCanvas. and you'll see. Let me know what you think. Bye! -- Javier Pimás Ciudad de Buenos Aires
2009/7/27 Javier Pimás <elpochodelagente@gmail.com>
Hi, this is my first mail to the list so hello everybody.
I've been trying to make GLMorphic work on pharo and got some useful results. I investigated the plugin that was needed to integrate into the VM and noticed it was really small, so I thought why make this in C if you can implement it directly in smalltalk. Shortly after that I came up with a translation of it (through FFI) so that you can use it with the VM as is. The code isn't something I'd call good, but it works fine (only windows, sorry).
If you want to try it, you should do
ScriptLoader loadFFI.
and then download the GLMorphic-JEP version of GLMorphic package from squeaksource (after GLMorphic-sig? ). I also made some modifications to FFI-Examples, so you may also have to dowonload FF-Examples-JEP from squeakfoundation.org. I'm new to monticello so it wouldn't be strange if nothing got uploaded correctly.
Some things work and most looks messed up, specially fonts... try
World fullDrawOn: GLDisplayScreen testCanvas.
and you'll see.
Let me know what you think.
Hi! Congratulations and welcome! I test it but I got the attached PharoDebug.log
Bye!
-- Javier Pimás Ciudad de Buenos Aires
_______________________________________________ Pharo-project mailing list Pharo-project@lists.gforge.inria.fr http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project
2009/7/27 Javier Pimás <elpochodelagente@gmail.com>:
Hi, this is my first mail to the list so hello everybody.
I've been trying to make GLMorphic work on pharo and got some useful results. I investigated the plugin that was needed to integrate into the VM and noticed it was really small, so I thought why make this in C if you can implement it directly in smalltalk. Shortly after that I came up with a translation of it (through FFI) so that you can use it with the VM as is. The code isn't something I'd call good, but it works fine (only windows, sorry).
Yes, you could implement it purely using FFI, but there's few things, why i decided to make a plugin instead: - you can't access the squeak window handle directly, there is no primitive. Accessing the window handle, as it shown in Win32/FFI examples , using activeWindow() function, is not what i like to be depend on. As well as filling the boring PIXELFORMATDESCRIPTION fields is not very easy in smalltalk... :) But anyways, if you did it, it is good, because now, it could work w/o additional plugin. An initialization & windowing stuff can be ported onto another platforms with a bit of pain, but the rest should work as usual because its OpenGL :)
If you want to try it, you should do
ScriptLoader loadFFI.
and then download the GLMorphic-JEP version of GLMorphic package from squeaksource (after GLMorphic-sig? ). I also made some modifications to FFI-Examples, so you may also have to dowonload FF-Examples-JEP from squeakfoundation.org. I'm new to monticello so it wouldn't be strange if nothing got uploaded correctly.
Some things work and most looks messed up, specially fonts... try
i suspect that the source of mess is texture handling. Especially with font glyphs. I had plans to rewrite the texture/font cache for it, to not use weak finalization. Because i suspect that this is a reason why sometimes textures go wild - because finalization process interrupts UI process in the middle. And this potentially could damade the OpenGL state mechanism, because of out-of-order calls. At time, i implemented it, i was not aware of Squeak's scheduling nuances :)
World fullDrawOn: GLDisplayScreen testCanvas.
and you'll see.
Let me know what you think.
Bye!
-- Javier Pimás Ciudad de Buenos Aires
_______________________________________________ Pharo-project mailing list Pharo-project@lists.gforge.inria.fr http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project
-- Best regards, Igor Stasenko AKA sig.
2009/7/27 Javier Pimás <elpochodelagente@gmail.com>: [snip]
If you want to try it, you should do
ScriptLoader loadFFI.
and then download the GLMorphic-JEP version of GLMorphic package from squeaksource (after GLMorphic-sig? ). I also made some modifications to FFI-Examples, so you may also have to dowonload FF-Examples-JEP from squeakfoundation.org. I'm new to monticello so it wouldn't be strange if nothing got uploaded correctly.
Please, put this into GLMorphic package. Make a separate class & copy the code you need. FFI-Examples is bad place for this. Btw, i'm currently in the middle of writing plugin for binding the OpenVG (http://www.khronos.org/openvg/). And your new additions could be useful, because for tests i wanna use the ShivaVG implementation, which expects a pre-initialized OpenGL rendering context... [snip] -- Best regards, Igor Stasenko AKA sig.
- you can't access the squeak window handle directly, there is no primitive.
Yes, I also found that problem, but there must be a way to find it in some place (or there should be) without writing a plugin.
Please, put this into GLMorphic package. Make a separate class & copy the code you need. FFI-Examples is bad place for this.
Ok I'll change that, and also I'll try to fix the glitches (at least making the fonts respect the ascend so that the characters are placed in the baseline. On Mon, Jul 27, 2009 at 4:34 PM, Igor Stasenko <siguctua@gmail.com> wrote:
2009/7/27 Javier Pimás <elpochodelagente@gmail.com>:
[snip]
If you want to try it, you should do
ScriptLoader loadFFI.
and then download the GLMorphic-JEP version of GLMorphic package from squeaksource (after GLMorphic-sig? ). I also made some modifications to FFI-Examples, so you may also have to dowonload FF-Examples-JEP from squeakfoundation.org. I'm new to monticello so it wouldn't be strange if nothing got uploaded correctly.
Btw, i'm currently in the middle of writing plugin for binding the OpenVG (http://www.khronos.org/openvg/). And your new additions could be useful, because for tests i wanna use the ShivaVG implementation, which expects a pre-initialized OpenGL rendering context...
[snip]
-- Best regards, Igor Stasenko AKA sig.
_______________________________________________ Pharo-project mailing list Pharo-project@lists.gforge.inria.fr http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project
-- Javier Pimás Ciudad de Buenos Aires
Mariano, you can update and test it again now. I moved all the code to GLMorphic package and everything you need should be there. On Mon, Jul 27, 2009 at 6:45 PM, Javier Pimás <elpochodelagente@gmail.com>wrote:
- you can't access the squeak window handle directly, there is no primitive.
Yes, I also found that problem, but there must be a way to find it in some place (or there should be) without writing a plugin.
Please, put this into GLMorphic package. Make a separate class & copy the code you need. FFI-Examples is bad place for this.
Ok I'll change that, and also I'll try to fix the glitches (at least making the fonts respect the ascend so that the characters are placed in the baseline.
On Mon, Jul 27, 2009 at 4:34 PM, Igor Stasenko <siguctua@gmail.com> wrote:
2009/7/27 Javier Pimás <elpochodelagente@gmail.com>:
[snip]
If you want to try it, you should do
ScriptLoader loadFFI.
and then download the GLMorphic-JEP version of GLMorphic package from squeaksource (after GLMorphic-sig? ). I also made some modifications to FFI-Examples, so you may also have to dowonload FF-Examples-JEP from squeakfoundation.org. I'm new to monticello so it wouldn't be strange if nothing got uploaded correctly.
Btw, i'm currently in the middle of writing plugin for binding the OpenVG (http://www.khronos.org/openvg/). And your new additions could be useful, because for tests i wanna use the ShivaVG implementation, which expects a pre-initialized OpenGL rendering context...
[snip]
-- Best regards, Igor Stasenko AKA sig.
_______________________________________________ Pharo-project mailing list Pharo-project@lists.gforge.inria.fr http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project
-- Javier Pimás Ciudad de Buenos Aires
-- Javier Pimás Ciudad de Buenos Aires
Btw the last thing i added is Frame Buffer Object extension (see GLFboBuffer & friends). It is not tested very well, and not integrated with GLCanvas. FBOs, if they are available, can be used to render into texture as if you render on screen. I planned to use it for caching the window contents when you dragging it.. there , of course, many other use cases. -- Best regards, Igor Stasenko AKA sig.
participants (3)
-
Igor Stasenko -
Javier Pimás -
Mariano Martinez Peck