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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> | 2008-12-17 13:58:05 -0700 |
| commit | 637f06dcdc2e5b29cbc39445b7141e6a496e1585 (patch) | |
| tree | 56f2125b9fd978e5030d21c6bb16bfc7c2b5c63f | |
| parent | 3be8d6db9e8bfbd1b3ebf9ac382857ad1e6ef753 (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 */ |