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| author | Brian Paul <brian.paul@tungstengraphics.com> | 2008-12-17 13:58:05 -0700 |
|---|---|---|
| committer | Brian Paul <brian.paul@tungstengraphics.com> | 2008-12-18 14:17:06 -0700 |
| commit | 7d41f10605c9e31b8d427f9f63f6505b187ac637 (patch) | |
| tree | 0cfc4c5886b320a88705ad88de2221fe65d8e72d | |
| parent | 26b5e92c302e0a83e08aa2100b23c10919a97f4a (diff) | |
util: check for frag/vertShader=0 before attaching
| -rw-r--r-- | progs/util/shaderutil.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/progs/util/shaderutil.c b/progs/util/shaderutil.c index 745851395a..2f1c4e38b3 100644 --- a/progs/util/shaderutil.c +++ b/progs/util/shaderutil.c @@ -6,6 +6,7 @@ */ +#include <assert.h> #include <stdio.h> #include <stdlib.h> #include <GL/glut.h> @@ -106,8 +107,12 @@ LinkShaders(GLuint vertShader, GLuint fragShader) { GLuint program = glCreateProgram_func(); - glAttachShader_func(program, fragShader); - glAttachShader_func(program, vertShader); + assert(vertShader || fragShader); + + if (fragShader) + glAttachShader_func(program, fragShader); + if (vertShader) + glAttachShader_func(program, vertShader); glLinkProgram_func(program); /* check link */ |