| Geant4 Cross Reference |
1 // Copyright (C) 2010, Guy Barrand. All rights
2 // See the file tools.license for terms.
3
4 #ifndef toolx_sg_gl
5 #define toolx_sg_gl
6
7 #include "../OpenGL"
8
9 #include <tools/platform> //for APPLE TargetCo
10 #include <tools/img>
11
12 #include <ostream>
13 #include <sstream>
14
15 namespace toolx {
16 namespace sg {
17 //namespace gl : no, problem with g4tools.
18
19 inline void gl_clear_errors() {
20 GLenum glerror = ::glGetError();
21 while(glerror!=GL_NO_ERROR) {
22 glerror = ::glGetError();
23 }
24 }
25
26 inline bool gl_dump_if_errors(std::ostream& a_
27 bool retval = false;
28 GLenum glerror = ::glGetError();
29 if(glerror!=GL_NO_ERROR) {
30 a_out << a_head
31 << " we have gl errors :"
32 << std::endl;
33 retval = true;
34 }
35 while(glerror!=GL_NO_ERROR) {
36 //#define GL_NO_ERROR
37 //#define GL_INVALID_ENUM
38 //#define GL_INVALID_VALUE
39 //#define GL_INVALID_OPERATION
40 //#define GL_STACK_OVERFLOW
41 //#define GL_STACK_UNDERFLOW
42 //#define GL_OUT_OF_MEMORY
43
44 //#define GL_INVALID_FRAMEBUFFER_OPERATION
45
46 std::ostringstream oss;
47 oss << "0x" << std::hex << glerror;
48 a_out << oss.str() << std::endl;
49
50 glerror = ::glGetError();
51 }
52 return retval;
53 }
54
55 inline void gl_dump_infos(std::ostream& a_out)
56 std::string gl_version;
57 {const char* _sv = (const char*)::glGetStri
58 if(_sv) gl_version = _sv;}
59
60 std::string gl_vendor;
61 {const char* _sv = (const char*)::glGetStri
62 if(_sv) gl_vendor = _sv;}
63
64 std::string gl_renderer;
65 {const char* _sv = (const char*)::glGetStri
66 if(_sv) gl_renderer = _sv;}
67
68 std::string gl_extensions;
69 {const char* _sv = (const char*)::glGetStri
70 if(_sv) gl_extensions = _sv;}
71
72 GLint gl_texture_size;
73 ::glGetIntegerv(GL_MAX_TEXTURE_SIZE, &gl_t
74
75 //GLint gl_buffer_size;
76 //::glGetIntegerv(GL_BUFFER_SIZE, &gl_buff
77
78 a_out << "toolx::sg::gl::dump_infos :" <<
79 a_out << " GL_VERSION " << gl_version << s
80 a_out << " GL_VENDOR " << gl_vendor << std
81 a_out << " GL_RENDERER " << gl_renderer <<
82 a_out << " GL_EXTENSIONS " << gl_extension
83 a_out << " GL_MAX_TEXTURE_SIZE " << gl_tex
84 //a_out << " GL_BUFFER_SIZE " << gl_buffer
85 }
86
87 inline bool gl_tex_img(std::ostream& a_out,con
88 if(a_img.bpp()==1) {
89 //to pass eiffel-tower.png
90 #if defined(ANDROID) || TARGET_OS_IPHONE
91 tools::img_byte res;
92 if(!a_img.bw2x(3,res)) {
93 a_out << "toolx::sg::gl::tex_img : too
94 return false;
95 }
96 ::glTexImage2D(GL_TEXTURE_2D,0,GL_RGB,re
97 #else
98 ::glTexImage2D(GL_TEXTURE_2D,0,GL_RGB,a_
99 #endif
100 } else if(a_img.bpp()==3) {
101 ::glTexImage2D(GL_TEXTURE_2D,0,GL_RGB,a_
102 } else if(a_img.bpp()==4) {
103 ::glTexImage2D(GL_TEXTURE_2D,0,GL_RGBA,a
104 } else {
105 a_out << "toolx::sg::gl::tex_img : img.b
106 return false;
107 }
108 return true;
109 }
110
111 }}
112
113
114 #endif