add guMakeBuffer()

glslUtil/glslUtil.c

@@ -263,3 +263,12 @@ cleanup_shader:
 out:
     return 0;
 }
+
+GLuint guMakeBuffer(GLenum target, GLenum usage, const void *ptr, size_t sz)
+{
+    GLuint id;
+    glGenBuffers(1, &id);
+    glBindBuffer(target, id);
+    glBufferData(target, sz, ptr, usage);
+    return id;
+}

glslUtil/glslUtil.h

@@ -34,6 +34,7 @@ char *guGetShaderLog(GLuint id);
 char *guGetProgramLog(GLuint id);
 GLuint guMakeShaderFromFile(GLenum shaderType, const char *fname);
 GLuint guMakeShader(GLenum shaderType, const char *source);
+GLuint guMakeBuffer(GLenum target, GLenum usage, const void *ptr, size_t sz);
 
 #ifdef __cplusplus
 }