[fixed]Compiling Irrlicht on Mac OS X x86_64

[fabietto]

Dear all,

I recently bought a new Apple laptop, where I'm running Snow Leopard. Since the new machine is a 64 bit one, I provided to recompile all the libraries I use against the x86_64 architecture. Some issues arisen with Irrlicht.

First of all, using the XCode project included into the distribution, it's not possible to select straightaway the x86_64 architecture. I had to add it manually to the "valid architectures" list (right click on MacOsX, within the Groups & Files section -> get info -> build tab -> valid architectures).

Second, the compilation returns some errors (and not warnings as I believe would make more sense) because of four instructions where "Cast from void* to GLuint loses precision". These instructions are located into COpenGLSLMaterialRenderer.cpp at lines 138, 139, 141, and 143:

Code: Select all

#if defined(GL_ARB_geometry_shader4) || defined(GL_EXT_geometry_shader4) || defined(GL_NV_geometry_shader4)
		Driver->extGlProgramParameteri((GLuint)Program, GL_GEOMETRY_INPUT_TYPE_EXT, Driver->primitiveTypeToGL(inType));
		Driver->extGlProgramParameteri((GLuint)Program, GL_GEOMETRY_OUTPUT_TYPE_EXT, Driver->primitiveTypeToGL(outType));
		if (verticesOut==0)
			Driver->extGlProgramParameteri((GLuint)Program, GL_GEOMETRY_VERTICES_OUT_EXT, Driver->MaxGeometryVerticesOut);
		else
			Driver->extGlProgramParameteri((GLuint)Program, GL_GEOMETRY_VERTICES_OUT_EXT, core::min_(verticesOut, Driver->MaxGeometryVerticesOut));
#elif defined(GL_NV_geometry_program4)
		if (verticesOut==0)
			Driver->extGlProgramVertexLimit(GL_GEOMETRY_PROGRAM_NV, Driver->MaxGeometryVerticesOut);
		else
			Driver->extGlProgramVertexLimit(GL_GEOMETRY_PROGRAM_NV, core::min_(verticesOut, Driver->MaxGeometryVerticesOut));
#endif

As suggested in a post I found online (http://webcache.googleusercontent.com/s ... ent=safari), I've modified the above code to look like:

Code: Select all

#if defined(GL_ARB_geometry_shader4) || defined(GL_EXT_geometry_shader4) || defined(GL_NV_geometry_shader4)
		Driver->extGlProgramParameteri((long GLuint)Program, GL_GEOMETRY_INPUT_TYPE_EXT, Driver->primitiveTypeToGL(inType));
		Driver->extGlProgramParameteri((long GLuint)Program, GL_GEOMETRY_OUTPUT_TYPE_EXT, Driver->primitiveTypeToGL(outType));
		if (verticesOut==0)
			Driver->extGlProgramParameteri((long GLuint)Program, GL_GEOMETRY_VERTICES_OUT_EXT, Driver->MaxGeometryVerticesOut);
		else
			Driver->extGlProgramParameteri((long GLuint)Program, GL_GEOMETRY_VERTICES_OUT_EXT, core::min_(verticesOut, Driver->MaxGeometryVerticesOut));
#elif defined(GL_NV_geometry_program4)
		if (verticesOut==0)
			Driver->extGlProgramVertexLimit(GL_GEOMETRY_PROGRAM_NV, Driver->MaxGeometryVerticesOut);
		else
			Driver->extGlProgramVertexLimit(GL_GEOMETRY_PROGRAM_NV, core::min_(verticesOut, Driver->MaxGeometryVerticesOut));
#endif

Once these modifications have been made, the library compiles smoothly. I'm not sure the one I've followed is the best solution to the problem, but so far seems to have worked alright.

Cheers,
Fabio

[hybrid]

The code has already been fixed in the SVN/trunk. It just didn't make it into the SDK.

[fabietto]

The code has already been fixed in the SVN/trunk. It just didn't make it into the SDK.

Fair play, I didn't know you already came across this issue. I searched across the forum but I couldn't find any post mentioning this problem.

[voidref]

The issue here is still int he SDK download as of version 1.7.2

[hybrid]

Yes, as mentioned above it will be in the 1.8 release (SVN/trunk), not in the bug fix releases fo the 1.7 branch.

[thatblokeray]

I get four errors when I try to correct the above errors. I've tried to manually fix this but couldn't get far. http://i.imgur.com/7j6O4.png

[hybrid]

Yes, there's still a known bug in the type mix that was introduced there. I think there's a patch on the patch tracker which is thought to fix this.

[dreamwalker]

I just changed the (long GLuint) to (long) and the warning/error seemed to disappear.
Now I have this problem.
http://irrlicht.sourceforge.net/forum/v ... =7&t=45863