1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
|
/*-----------------------------------------------------------------
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 */
#ifdef __EMSCRIPTEN__
#include "Gem/glew.h"
#else
#include "Gem/GemGL.h"
#endif
#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); // throws 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
|
