[852] | 1 | /*
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| 2 | glh - is a platform-indepenedent C++ OpenGL helper library
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| 3 |
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| 4 |
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| 5 | Copyright (c) 2000 Cass Everitt
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| 6 | Copyright (c) 2000 NVIDIA Corporation
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| 7 | All rights reserved.
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| 8 |
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| 9 | Redistribution and use in source and binary forms, with or
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| 10 | without modification, are permitted provided that the following
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| 11 | conditions are met:
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| 12 |
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| 13 | * Redistributions of source code must retain the above
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| 14 | copyright notice, this list of conditions and the following
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| 15 | disclaimer.
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| 16 |
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| 17 | * Redistributions in binary form must reproduce the above
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| 18 | copyright notice, this list of conditions and the following
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| 19 | disclaimer in the documentation and/or other materials
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| 20 | provided with the distribution.
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| 21 |
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| 22 | * The names of contributors to this software may not be used
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| 23 | to endorse or promote products derived from this software
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| 24 | without specific prior written permission.
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| 25 |
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| 26 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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| 27 | ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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| 28 | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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| 29 | FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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| 30 | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 31 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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| 32 | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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| 33 | LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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| 34 | CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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| 35 | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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| 36 | ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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| 37 | POSSIBILITY OF SUCH DAMAGE.
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| 38 |
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| 39 |
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| 40 | Cass Everitt - cass@r3.nu
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| 41 | */
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| 42 |
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| 43 | // This is a file for simple GL helper classes...
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| 44 |
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| 45 | #ifndef GLH_OBS_H
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| 46 | #define GLH_OBS_H
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| 47 |
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| 48 | #ifdef _WIN32
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| 49 | # include <windows.h>
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| 50 | #endif
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| 51 |
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| 52 | #ifdef MACOS
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| 53 | #include <OpenGL/gl.h>
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| 54 | #include <OpenGL/glext.h>
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| 55 | #else
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| 56 | #include <GL/gl.h>
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| 57 | #include <GL/glext.h>
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| 58 | #endif
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| 59 |
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| 60 | #include <glh/glh_extensions.h>
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| 61 |
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| 62 | #include <glh/glh_linear.h>
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| 63 |
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| 64 | namespace glh
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| 65 | {
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| 66 | class display_list
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| 67 | {
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| 68 | public:
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| 69 | // set managed to true if you want the class to cleanup objects in the destructor
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| 70 | display_list(bool managed = false)
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| 71 | : valid(false), manageObjects(managed) {}
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| 72 |
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| 73 | virtual ~display_list()
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| 74 | {
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| 75 | if (manageObjects)
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| 76 | del();
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| 77 | }
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| 78 |
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| 79 | void call_list()
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| 80 | { if(valid) glCallList(dlist); }
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| 81 |
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| 82 | void new_list(GLenum mode)
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| 83 | { if(!valid) gen(); glNewList(dlist, mode); }
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| 84 |
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| 85 | void end_list()
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| 86 | { glEndList(); }
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| 87 |
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| 88 | void del()
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| 89 | { if(valid) glDeleteLists(dlist, 1); valid = false; }
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| 90 |
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| 91 | bool is_valid() const { return valid; }
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| 92 |
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| 93 | private:
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| 94 |
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| 95 | void gen() { dlist = glGenLists(1); valid=true; }
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| 96 |
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| 97 | bool valid;
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| 98 | bool manageObjects;
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| 99 | GLuint dlist;
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| 100 | };
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| 101 |
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| 102 | class lazy_build_display_list
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| 103 | {
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| 104 | public:
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| 105 | // set managed to true if you want the class to cleanup objects in the destructor
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| 106 | lazy_build_display_list(void (* builder)() = 0, bool managed = false)
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| 107 | : valid(false), manageObjects(managed), needs_rebuild(true), build_func(builder) {}
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| 108 |
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| 109 | virtual ~lazy_build_display_list()
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| 110 | {
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| 111 | if (manageObjects)
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| 112 | del();
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| 113 | }
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| 114 |
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| 115 | void set_build_func( void (* builder)())
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| 116 | { build_func = builder; }
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| 117 |
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| 118 | void call_list()
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| 119 | {
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| 120 | if(! valid) gen();
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| 121 | if(needs_rebuild) rebuild_list();
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| 122 | glCallList(dlist);
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| 123 | }
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| 124 |
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| 125 | void del()
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| 126 | { if(valid) glDeleteLists(dlist, 1); valid = false; needs_rebuild = true;}
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| 127 |
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| 128 | bool is_valid() const { return valid; }
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| 129 |
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| 130 | // something changed, so rebuild list before next call_list()
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| 131 | void rebuild() { needs_rebuild = true; }
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| 132 |
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| 133 | private:
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| 134 |
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| 135 | void gen() { dlist = glGenLists(1); valid=true; }
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| 136 | void rebuild_list()
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| 137 | {
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| 138 | glNewList(dlist, GL_COMPILE);
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| 139 | if(build_func) (* build_func)(); // call list building routine
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| 140 | glEndList();
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| 141 | }
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| 142 |
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| 143 | bool valid;
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| 144 | bool manageObjects;
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| 145 | bool needs_rebuild;
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| 146 | GLuint dlist;
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| 147 | void (* build_func)();
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| 148 | };
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| 149 |
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| 150 |
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| 151 | class tex_object
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| 152 | {
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| 153 | public:
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| 154 | // set managed to true if you want the class to cleanup objects in the destructor
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| 155 | tex_object(GLenum tgt, bool managed)
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| 156 | : target(tgt), valid(false), manageObjects(managed) {}
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| 157 |
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| 158 | virtual ~tex_object()
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| 159 | {
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| 160 | if (manageObjects)
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| 161 | del();
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| 162 | }
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| 163 |
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| 164 | void bind()
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| 165 | { if(!valid) gen(); glBindTexture(target, texture); }
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| 166 |
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| 167 | // convenience methods
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| 168 |
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| 169 | #ifdef MACOS
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| 170 | void parameter(GLenum pname, int i)
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| 171 | { glTexParameteri(target, pname, i); }
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| 172 | #endif
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| 173 |
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| 174 | void parameter(GLenum pname, GLint i)
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| 175 | { glTexParameteri(target, pname, i); }
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| 176 |
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| 177 | void parameter(GLenum pname, GLfloat f)
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| 178 | { glTexParameterf(target, pname, f); }
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| 179 |
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| 180 | void parameter(GLenum pname, GLint * ip)
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| 181 | { glTexParameteriv(target, pname, ip); }
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| 182 |
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| 183 | void parameter(GLenum pname, GLfloat * fp)
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| 184 | { glTexParameterfv(target, pname, fp); }
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| 185 |
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| 186 | void enable() { glEnable(target); }
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| 187 | void disable() { glDisable(target); }
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| 188 |
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| 189 |
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| 190 | void del()
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| 191 | { if(valid) glDeleteTextures(1, &texture); valid = false; }
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| 192 | bool is_valid() const { return valid; }
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| 193 |
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| 194 | void gen() { glGenTextures(1, &texture); valid=true; }
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| 195 |
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| 196 | GLenum target;
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| 197 | bool valid;
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| 198 | bool manageObjects;
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| 199 | GLuint texture;
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| 200 | };
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| 201 |
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| 202 | class tex_object_1D : public tex_object
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| 203 | { public: tex_object_1D(bool managed = false) : tex_object(GL_TEXTURE_1D, managed) {} };
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| 204 |
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| 205 | class tex_object_2D : public tex_object
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| 206 | { public: tex_object_2D(bool managed = false) : tex_object(GL_TEXTURE_2D, managed) {} };
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| 207 |
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| 208 | class tex_object_3D : public tex_object
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| 209 | { public: tex_object_3D(bool managed = false) : tex_object(GL_TEXTURE_3D, managed) {} };
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| 210 |
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| 211 |
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| 212 | # ifdef GL_ARB_texture_cube_map
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| 213 | class tex_object_cube_map : public tex_object
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| 214 | { public: tex_object_cube_map(bool managed = false) : tex_object(GL_TEXTURE_CUBE_MAP_ARB, managed) {} };
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| 215 | # elif GL_EXT_texture_cube_map
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| 216 | class tex_object_cube_map : public tex_object
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| 217 | { public: tex_object_cube_map(bool managed = false) : tex_object(GL_TEXTURE_CUBE_MAP_EXT, managed) {} };
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| 218 | # endif
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| 219 |
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| 220 | #if defined(GL_EXT_texture_rectangle)
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| 221 | class tex_object_rectangle : public tex_object
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| 222 | { public: tex_object_rectangle(bool managed = false) : tex_object(GL_TEXTURE_RECTANGLE_EXT, managed) {} };
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| 223 | #elif defined(GL_NV_texture_rectangle)
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| 224 | class tex_object_rectangle : public tex_object
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| 225 | { public: tex_object_rectangle(bool managed = false) : tex_object(GL_TEXTURE_RECTANGLE_NV, managed) {} };
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| 226 | #endif
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| 227 |
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| 228 |
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| 229 | # ifdef GL_NV_vertex_program
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| 230 | class vertex_program_base
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| 231 | {
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| 232 | public:
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| 233 | // set managed to true if you want the class to cleanup objects in the destructor
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| 234 | vertex_program_base(GLenum tgt, bool managed)
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| 235 | : valid(false), manageObjects(managed), target(tgt) {}
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| 236 |
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| 237 | virtual ~vertex_program_base()
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| 238 | {
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| 239 | if (manageObjects)
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| 240 | del();
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| 241 | }
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| 242 |
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| 243 | void bind()
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| 244 | { if(!valid) gen(); glBindProgramNV(target, program); }
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| 245 |
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| 246 | void unbind()
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| 247 | { glBindProgramNV(target, 0); }
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| 248 |
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| 249 | void load(GLuint size, const GLubyte * prog_text)
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| 250 | {
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| 251 | if(!valid) gen();
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| 252 | glLoadProgramNV(target, program, size, prog_text);
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| 253 | GLint errpos;
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| 254 | glGetIntegerv(GL_PROGRAM_ERROR_POSITION_NV, &errpos);
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| 255 | if(errpos != -1)
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| 256 | {
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| 257 | fprintf(stderr, "program error:\n");
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| 258 | int bgn = errpos - 10;
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| 259 | bgn < 0 ? 0 : bgn;
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| 260 | const char * c = (const char *)(prog_text + bgn);
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| 261 | for(int i = 0; i < 30; i++)
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| 262 | {
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| 263 | if(bgn+i >= int(size-1))
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| 264 | break;
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| 265 | fprintf(stderr, "%c", *c++);
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| 266 | }
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| 267 | fprintf(stderr, "\n");
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| 268 | }
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| 269 | }
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| 270 |
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| 271 | void load(GLuint size, const char * prog_text)
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| 272 | {
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| 273 | if(!valid) gen();
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| 274 | glLoadProgramNV(target, program, size, (const GLubyte *) prog_text);
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| 275 | GLint errpos;
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| 276 | glGetIntegerv(GL_PROGRAM_ERROR_POSITION_NV, &errpos);
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| 277 | if(errpos != -1)
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| 278 | {
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| 279 | fprintf(stderr, "program error:\n");
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| 280 | int bgn = errpos - 10;
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| 281 | //bgn < 0 ? 0 : bgn;
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| 282 | const char * c = (const char *)(prog_text + bgn);
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| 283 | for(int i = 0; i < 30; i++)
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| 284 | {
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| 285 | if(bgn+i >= int(size-1))
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| 286 | break;
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| 287 | fprintf(stderr, "%c", *c++);
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| 288 | }
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| 289 | fprintf(stderr, "\n");
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| 290 | }
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| 291 | }
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| 292 |
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| 293 | void load(const char * prog_text)
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| 294 | { load((GLuint)strlen(prog_text), prog_text); }
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| 295 |
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| 296 |
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| 297 | void del()
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| 298 | { if(valid) glDeleteProgramsNV(1, &program); valid = false; }
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| 299 |
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| 300 | bool is_valid() const { return valid; }
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| 301 |
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| 302 | private:
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| 303 |
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| 304 | void gen() { glGenProgramsNV(1, &program); valid=true; }
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| 305 |
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| 306 | bool valid;
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| 307 | bool manageObjects;
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| 308 | GLenum target;
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| 309 | GLuint program;
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| 310 | };
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| 311 |
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| 312 | class vertex_program : public vertex_program_base
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| 313 | {
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| 314 | public:
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| 315 | vertex_program(bool managed = false)
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| 316 | : vertex_program_base(GL_VERTEX_PROGRAM_NV, managed) {}
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| 317 | };
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| 318 |
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| 319 | class vertex_state_program : public vertex_program_base
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| 320 | {
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| 321 | public:
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| 322 | vertex_state_program(bool managed = false)
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| 323 | : vertex_program_base(GL_VERTEX_STATE_PROGRAM_NV, managed) {}
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| 324 | };
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| 325 |
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| 326 | class lazy_load_vertex_program : public vertex_program_base
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| 327 | {
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| 328 | public:
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| 329 | lazy_load_vertex_program(void (*vp_loader)() = 0, bool managed = false)
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| 330 | : vertex_program_base(GL_VERTEX_PROGRAM_NV, managed), needs_load(true), loader(vp_loader) {}
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| 331 |
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| 332 | void bind()
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| 333 | {
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| 334 | vertex_program_base::bind();
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| 335 | if(needs_load && loader)
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| 336 | {
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| 337 | (* loader)();
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| 338 | needs_load = false;
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| 339 | }
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| 340 | }
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| 341 |
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| 342 | void reload() { needs_load = true; }
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| 343 |
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| 344 | private:
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| 345 | bool needs_load;
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| 346 | void (* loader)();
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| 347 | };
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| 348 |
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| 349 |
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| 350 | #endif
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| 351 |
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| 352 | # ifdef GL_ARB_vertex_program
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| 353 | class arb_vertex_program_base
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| 354 | {
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| 355 | public:
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| 356 | // set managed to true if you want the class to cleanup objects in the destructor
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| 357 | arb_vertex_program_base(GLenum tgt, bool managed)
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| 358 | : valid(false), manageObjects(managed), target(tgt) {}
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| 359 |
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| 360 | virtual ~arb_vertex_program_base()
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| 361 | {
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| 362 | if (manageObjects)
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| 363 | del();
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| 364 | }
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| 365 |
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| 366 | void bind()
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| 367 | { if(!valid) gen(); glBindProgramARB(target, program); }
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| 368 |
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| 369 | void unbind()
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| 370 | { glBindProgramARB(target, 0); }
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| 371 |
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| 372 | void load(GLuint size, const GLubyte * prog_text)
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| 373 | {
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| 374 | if(!valid) gen();
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| 375 | bind();
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| 376 | glProgramStringARB(target, GL_PROGRAM_FORMAT_ASCII_ARB, size, prog_text);
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| 377 | GLint errpos;
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| 378 | glGetIntegerv(GL_PROGRAM_ERROR_POSITION_ARB, &errpos);
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| 379 | if(errpos != -1)
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| 380 | {
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| 381 | fprintf(stderr, "program error:\n");
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| 382 | int bgn = errpos - 10;
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| 383 | bgn < 0 ? 0 : bgn;
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| 384 | const char * c = (const char *)(prog_text + bgn);
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| 385 | for(int i = 0; i < 30; i++)
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| 386 | {
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| 387 | if(bgn+i >= int(size-1))
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| 388 | break;
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| 389 | fprintf(stderr, "%c", *c++);
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| 390 | }
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| 391 | fprintf(stderr, "\n");
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| 392 | }
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| 393 | }
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| 394 |
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| 395 | void load(GLuint size, const char * prog_text)
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| 396 | {
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| 397 | if(!valid) gen();
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| 398 | bind();
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| 399 | glProgramStringARB(target, GL_PROGRAM_FORMAT_ASCII_ARB, size, prog_text);
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| 400 | GLint errpos;
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| 401 | glGetIntegerv(GL_PROGRAM_ERROR_POSITION_ARB, &errpos);
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| 402 | if(errpos != -1)
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| 403 | {
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| 404 | fprintf(stderr, "program error:\n");
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| 405 | int bgn = errpos - 10;
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| 406 | //bgn < 0 ? 0 : bgn;
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| 407 | const char * c = (const char *)(prog_text + bgn);
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| 408 | for(int i = 0; i < 30; i++)
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| 409 | {
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| 410 | if(bgn+i >= int(size-1))
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| 411 | break;
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| 412 | fprintf(stderr, "%c", *c++);
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| 413 | }
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| 414 | fprintf(stderr, "\n");
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| 415 | }
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| 416 | }
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| 417 |
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| 418 | void load(const char * prog_text)
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| 419 | { load((GLuint)strlen(prog_text), prog_text); }
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| 420 |
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| 421 |
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| 422 | void del() { if(valid) glDeleteProgramsARB(1, &program); valid = false; }
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| 423 |
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| 424 | bool is_valid() const { return valid; }
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| 425 |
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| 426 | private:
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| 427 |
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| 428 | void gen() { glGenProgramsARB(1, &program); valid=true; }
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| 429 |
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| 430 | bool valid;
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| 431 | bool manageObjects;
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| 432 | GLenum target;
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| 433 | GLuint program;
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| 434 | };
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| 435 |
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| 436 | class arb_vertex_program : public arb_vertex_program_base
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| 437 | {
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| 438 | public:
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| 439 | arb_vertex_program(bool managed = false)
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| 440 | : arb_vertex_program_base(GL_VERTEX_PROGRAM_ARB, managed) {}
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| 441 | };
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| 442 |
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| 443 | class lazy_load_arb_vertex_program : public arb_vertex_program_base
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| 444 | {
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| 445 | public:
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| 446 | lazy_load_arb_vertex_program(void (*vp_loader)() = 0, bool managed = false)
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| 447 | : arb_vertex_program_base(GL_VERTEX_PROGRAM_ARB, managed), needs_load(true), loader(vp_loader) {}
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| 448 |
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| 449 | void bind()
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| 450 | {
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| 451 | arb_vertex_program_base::bind();
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| 452 | if(needs_load && loader)
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| 453 | {
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| 454 | (* loader)();
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| 455 | needs_load = false;
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| 456 | }
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| 457 | }
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| 458 |
|
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| 459 | void reload() { needs_load = true; }
|
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| 460 |
|
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| 461 | private:
|
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| 462 | bool needs_load;
|
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| 463 | void (* loader)();
|
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| 464 | };
|
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| 465 |
|
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| 466 | #endif
|
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| 467 |
|
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| 468 | # ifdef GL_NV_fragment_program
|
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| 469 |
|
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| 470 | class fragment_program
|
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| 471 | {
|
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| 472 | public:
|
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| 473 | // set managed to true if you want the class to cleanup objects in the destructor
|
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| 474 | fragment_program(bool managed = false)
|
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| 475 | : valid(false), manageObjects(managed) {}
|
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| 476 |
|
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| 477 | virtual ~fragment_program()
|
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| 478 | {
|
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| 479 | if (manageObjects)
|
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| 480 | del();
|
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| 481 | }
|
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| 482 |
|
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| 483 | void bind()
|
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| 484 | { if(!valid) gen(); glBindProgramNV(GL_FRAGMENT_PROGRAM_NV, program); }
|
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| 485 |
|
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| 486 | void load(GLuint size, const GLubyte * prog_text)
|
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| 487 | {
|
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| 488 | if(!valid) gen();
|
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| 489 | glLoadProgramNV(GL_FRAGMENT_PROGRAM_NV, program, size, prog_text);
|
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| 490 | GLint errpos;
|
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| 491 | glGetIntegerv(GL_PROGRAM_ERROR_POSITION_NV, &errpos);
|
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| 492 | if(errpos != -1)
|
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| 493 | {
|
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| 494 | fprintf(stderr, "program error:\n");
|
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| 495 | int bgn = errpos - 10;
|
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| 496 | bgn < 0 ? 0 : bgn;
|
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| 497 | const char * c = (const char *)(prog_text + bgn);
|
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| 498 | for(int i = 0; i < 30; i++)
|
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| 499 | {
|
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| 500 | if(bgn+i >= int(size-1))
|
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| 501 | break;
|
---|
| 502 | fprintf(stderr, "%c", *c++);
|
---|
| 503 | }
|
---|
| 504 | fprintf(stderr, "\n");
|
---|
| 505 | }
|
---|
| 506 | }
|
---|
| 507 |
|
---|
| 508 | void load(GLuint size, const char * prog_text)
|
---|
| 509 | {
|
---|
| 510 | if(!valid) gen();
|
---|
| 511 | glLoadProgramNV(GL_FRAGMENT_PROGRAM_NV, program, size, (const GLubyte *) prog_text);
|
---|
| 512 | GLint errpos;
|
---|
| 513 | glGetIntegerv(GL_PROGRAM_ERROR_POSITION_NV, &errpos);
|
---|
| 514 | if(errpos != -1)
|
---|
| 515 | {
|
---|
| 516 | fprintf(stderr, "program error:\n");
|
---|
| 517 | int bgn = errpos - 10;
|
---|
| 518 |
|
---|
| 519 | const char * c = (const char *)(prog_text + bgn);
|
---|
| 520 | for(int i = 0; i < 30; i++)
|
---|
| 521 | {
|
---|
| 522 | if(bgn+i >= int(size-1))
|
---|
| 523 | break;
|
---|
| 524 | fprintf(stderr, "%c", *c++);
|
---|
| 525 | }
|
---|
| 526 | fprintf(stderr, "\n");
|
---|
| 527 | }
|
---|
| 528 | }
|
---|
| 529 |
|
---|
| 530 | void load(const char * prog_text)
|
---|
| 531 | { load((GLuint)strlen(prog_text), prog_text); }
|
---|
| 532 |
|
---|
| 533 | void del()
|
---|
| 534 | { if(valid) glDeleteProgramsNV(1, &program); valid = false; }
|
---|
| 535 |
|
---|
| 536 | bool is_valid() const { return valid; }
|
---|
| 537 |
|
---|
| 538 | GLuint program;
|
---|
| 539 | private:
|
---|
| 540 |
|
---|
| 541 | void gen() { glGenProgramsNV(1, &program); valid=true; }
|
---|
| 542 |
|
---|
| 543 | bool valid;
|
---|
| 544 | bool manageObjects;
|
---|
| 545 | };
|
---|
| 546 |
|
---|
| 547 |
|
---|
| 548 | #endif
|
---|
| 549 |
|
---|
| 550 | #ifdef GL_ARB_fragment_program
|
---|
| 551 |
|
---|
| 552 | class arb_fragment_program
|
---|
| 553 | {
|
---|
| 554 | public:
|
---|
| 555 | // set managed to true if you want the class to cleanup objects in the destructor
|
---|
| 556 | arb_fragment_program(bool managed = false)
|
---|
| 557 | : valid(false), manageObjects(managed) {}
|
---|
| 558 |
|
---|
| 559 | virtual ~arb_fragment_program()
|
---|
| 560 | {
|
---|
| 561 | if (manageObjects)
|
---|
| 562 | del();
|
---|
| 563 | }
|
---|
| 564 |
|
---|
| 565 | void bind()
|
---|
| 566 | { if(!valid) gen(); glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, program); }
|
---|
| 567 |
|
---|
| 568 | void load(GLuint size, const GLubyte * prog_text)
|
---|
| 569 | {
|
---|
| 570 | if(!valid) gen();
|
---|
| 571 | glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB, size, prog_text);
|
---|
| 572 | //glLoadProgramNV(GL_FRAGMENT_PROGRAM_NV, program, size, prog_text);
|
---|
| 573 |
|
---|
| 574 | GLint errpos;
|
---|
| 575 | glGetIntegerv(GL_PROGRAM_ERROR_POSITION_ARB, &errpos);
|
---|
| 576 | if(errpos != -1)
|
---|
| 577 | {
|
---|
| 578 | fprintf(stderr, "program error:\n");
|
---|
| 579 | int bgn = errpos - 10;
|
---|
| 580 | bgn < 0 ? 0 : bgn;
|
---|
| 581 | const char * c = (const char *)(prog_text + bgn);
|
---|
| 582 | for(int i = 0; i < 30; i++)
|
---|
| 583 | {
|
---|
| 584 | if(bgn+i >= int(size-1))
|
---|
| 585 | break;
|
---|
| 586 | fprintf(stderr, "%c", *c++);
|
---|
| 587 | }
|
---|
| 588 | fprintf(stderr, "\n");
|
---|
| 589 | }
|
---|
| 590 | }
|
---|
| 591 |
|
---|
| 592 | void load(GLuint size, const char * prog_text)
|
---|
| 593 | {
|
---|
| 594 | if(!valid) gen();
|
---|
| 595 | glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB, size, prog_text);
|
---|
| 596 | //glLoadProgramNV(GL_FRAGMENT_PROGRAM_NV, program, size, (const GLubyte *) prog_text);
|
---|
| 597 | GLint errpos;
|
---|
| 598 | glGetIntegerv(GL_PROGRAM_ERROR_POSITION_ARB, &errpos);
|
---|
| 599 | if(errpos != -1)
|
---|
| 600 | {
|
---|
| 601 | fprintf(stderr, "program error:\n");
|
---|
| 602 | int bgn = errpos - 10;
|
---|
| 603 |
|
---|
| 604 | const char * c = (const char *)(prog_text + bgn);
|
---|
| 605 | for(int i = 0; i < 30; i++)
|
---|
| 606 | {
|
---|
| 607 | if(bgn+i >= int(size-1))
|
---|
| 608 | break;
|
---|
| 609 | fprintf(stderr, "%c", *c++);
|
---|
| 610 | }
|
---|
| 611 | fprintf(stderr, "\n");
|
---|
| 612 | }
|
---|
| 613 | }
|
---|
| 614 |
|
---|
| 615 | void load(const char * prog_text)
|
---|
| 616 | { load((GLuint)strlen(prog_text), prog_text); }
|
---|
| 617 |
|
---|
| 618 | void del()
|
---|
| 619 | { if(valid) glDeleteProgramsARB(1, &program); valid = false; }
|
---|
| 620 |
|
---|
| 621 | bool is_valid() const { return valid; }
|
---|
| 622 |
|
---|
| 623 | GLuint program;
|
---|
| 624 | private:
|
---|
| 625 |
|
---|
| 626 | void gen() { glGenProgramsARB(1, &program); valid=true; }
|
---|
| 627 |
|
---|
| 628 | bool valid;
|
---|
| 629 | bool manageObjects;
|
---|
| 630 | };
|
---|
| 631 |
|
---|
| 632 |
|
---|
| 633 | #endif
|
---|
| 634 |
|
---|
| 635 | }
|
---|
| 636 | #endif
|
---|