Gem osx/x86_64

built '' for osx/x86_64

1 files changed, 100 insertions, 0 deletions

diff --git a/Gem/develop/include/Gem/Utils/GLUtil.h b/Gem/develop/include/Gem/Utils/GLUtil.h
new file mode 100644
index 0000000..c550c07
--- /dev/null
+++ b/Gem/develop/include/Gem/Utils/GLUtil.h
@@ -0,0 +1,100 @@
+/*-----------------------------------------------------------------
+LOG
+    GEM - Graphics Environment for Multimedia
+
+    GemGLUtil.h
+       - contains functions for graphics
+       - part of GEM
+
+    Copyright (c) 1997-2000 Mark Danks. mark@danks.org
+    Copyright (c) Günther Geiger. geiger@epy.co.at
+    Copyright (c) 2001-2011 IOhannes m zmölnig. forum::für::umläute. IEM. zmoelnig@iem.at
+    For information on usage and redistribution, and for a DISCLAIMER OF ALL
+    WARRANTIES, see the file, "GEM.LICENSE.TERMS" in this distribution.
+
+-----------------------------------------------------------------*/
+
+#ifndef _INCLUDE__GEM_UTILS_GLUTIL_H_
+#define _INCLUDE__GEM_UTILS_GLUTIL_H_
+
+#include "Gem/ExportDef.h"
+
+/* for t_symbol/t_atom */
+/* LATER get rid of that (std::string) */
+struct _atom;
+struct _symbol;
+#include <string>
+
+/* for GLenum */
+#include "Gem/GemGL.h"
+#include "Gem/Exception.h"
+
+
+namespace gem {namespace utils {namespace gl {
+GEM_EXTERN extern GLenum	glReportError (bool verbose=true);
+GEM_EXTERN extern int           getGLdefine(const char *name);
+GEM_EXTERN extern int           getGLdefine(const struct _symbol *name);
+GEM_EXTERN extern int           getGLdefine(const struct _atom *name);
+GEM_EXTERN extern int           getGLbitfield(int argc, struct _atom *argv);
+
+
+
+  /* mapping between GLSL-program IDs and float */
+  /* this can also return different IDs for different contexts */
+  class GEM_EXTERN GLuintMap {
+  public:
+    GLuintMap(const std::string&name);
+    virtual ~GLuintMap();
+    GLuint get(float) throw(GemException&);
+    /* map a GLuint to float; if float is 0, the new mapping is created,
+     * else we just update an existing one
+     * updating is especially useful with multiple contexts */
+    float set(GLuint, float f=0);
+
+    void del(float);
+
+
+    /* usage:
+       mapper=GLuintMap("glsl_program");
+       prog=glCreateProgram();
+       progMapped=mapper.set(prog);
+       // for multi-context, you probably want to have a single float map to multiple
+       // programIDs; you add (or update) an existing mapping with:
+       //    progMapped=mapper.set(prog, progMapped));
+       outlet_float(m_out, mapper.get(progMapped));
+
+       // ... somewhere else
+       mapper=GLuintMap("glsl_program");
+       GLuint id = mapper.get(atom_getfloat(ap));
+    */
+
+    /* multi-context:
+         mapper=GLuintMap("glsl_program");
+         float progF=0;
+         switchContext(A);
+         prog=glCreateProgram();
+         progF=mapper.set(prog, progF);
+         print(prog,progF); // "3" "3.1415"
+         switchContext(B);
+         prog=glCreateProgram();
+         progF=mapper.set(prog, progF);
+         print(prog,progF); // "6" "3.1415"
+
+	 // ...somewhere else
+         mapper=GLuintMap("glsl_program");
+         prog=mapper.get(progF);
+         print(prog,progF); // "3" "3.1415"
+         switchContext(B);
+         prog=mapper.get(progF);
+         print(prog,progF); // "6" "3.1415"
+    */
+  private:
+    struct PIMPL;
+    PIMPL*m_pimpl;
+    GLuintMap();
+    GLuintMap&operator=(const GLuintMap&);
+  };
+};};}; /* namespace */
+
+#endif  // for header file
+