Initialized variables passed to GL functions. Command buffer now only allows initialized variable...

third_party/gles2_book/Chapter_11/Stencil_Test/Stencil_Test.c

 //
 // Book:      OpenGL(R) ES 2.0 Programming Guide
 // Authors:   Aaftab Munshi, Dan Ginsburg, Dave Shreiner
 // ISBN-10:   0321502795
 // ISBN-13:   9780321502797
 // Publisher: Addison-Wesley Professional
 // URLs:      http://safari.informit.com/9780321563835
 //            http://www.opengles-book.com
 //
 
@@ skipping 103 matching lines @@
    STUserData *userData = esContext->userData;
 
 #define NumTests  4
    GLfloat  colors[NumTests][4] = { 
        { 1.0f, 0.0f, 0.0f, 1.0f },
        { 0.0f, 1.0f, 0.0f, 1.0f },
        { 0.0f, 0.0f, 1.0f, 1.0f },
        { 1.0f, 1.0f, 0.0f, 0.0f }
    };
 
-   GLint   numStencilBits;
+   GLint   numStencilBits = 0;
    GLuint  stencilValues[NumTests] = { 
       0x7, // Result of test 0
       0x0, // Result of test 1
       0x2, // Result of test 2
       0xff // Result of test 3.  We need to fill this
            //  value in a run-time
    };
 
    // Set the viewport
    glViewport ( 0, 0, esContext->width, esContext->height );
@@ skipping 108 matching lines @@
 void stShutDown ( ESContext *esContext )
 {
    STUserData *userData = esContext->userData;
 
    // Delete program object
    glDeleteProgram ( userData->programObject );
 
    // Delete vertex buffer objects
    glDeleteBuffers ( 2, userData->vboIds );
 }