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Re: Occlusion queries?

I am showing this code section in the latest headers (glext.h) ...

#if GL_ARB_occlusion_query
#ifdef GL_GLEXT_FUNCTION_POINTERS
typedef void (* glGenQueriesARBProcPtr) (GLsizei n, GLuint *ids);
typedef void (* glDeleteQueriesARBProcPtr) (GLsizei n, const GLuint *ids);
typedef GLboolean (* glIsQueryARBProcPtr) (GLuint id);
typedef void (* glBeginQueryARBProcPtr) (GLenum target, GLuint id);
typedef void (* glEndQueryARBProcPtr) (GLenum target);
typedef void (* glGetQueryivARBProcPtr) (GLenum target, GLenum pname, GLint *params);
typedef void (* glGetQueryObjectivARBProcPtr) (GLuint id, GLenum pname, GLint *params);
typedef void (* glGetQueryObjectuivARBProcPtr) (GLuint id, GLenum pname, GLuint *params);
#else
extern void glGenQueriesARB(GLsizei n, GLuint *ids);
extern void glDeleteQueriesARB(GLsizei n, const GLuint *ids);
extern GLboolean glIsQueryARB(GLuint id);
extern void glBeginQueryARB(GLenum target, GLuint id);
extern void glEndQueryARB(GLenum target);
extern void glGetQueryivARB(GLenum target, GLenum pname, GLint *params);
extern void glGetQueryObjectivARB(GLuint id, GLenum pname, GLint *params);
extern void glGetQueryObjectuivARB(GLuint id, GLenum pname, GLuint *params);
#endif
#endif

Geoff Stahl
3D Software Engineer
Apple

On Apr 27, 2005, at 11:36 AM, Keenan Crane wrote:

Does anyone know what I need to include now to use occlusion queries? About six months ago I could just include:

  #include <OpenGL/gl.h>
  #include <OpenGL/glu.h>
  #include <OpenGL/glext.h>
  #include <GLUT/glut.h>

and could use glBeginQueryARB, glEndQueryARB, etc., but now those show up as undeclared when I compile. Is there a new interface to occlusion queries?

When I do this:

/System/Library/Frameworks/OpenGL.framework kcrane$ grep -ril "BeginQuery" .

I get this:

./Libraries/libGL.dylib
./Versions/A/Libraries/libGL.dylib
./Versions/Current/Libraries/libGL.dylib

which makes me think it just got removed from the headers.



-Keenan

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References: 
 >Occlusion queries? (From: Keenan Crane <email@hidden>)



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