Added an application framework for demos. Ported hello-triangle example in Op...

third_party/gles_book_examples/Common/Source/esShapes.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
 //
 
 // ESShapes.c
 //
 //    Utility functions for generating shapes
 //
 
 ///
 //  Includes
 //
 #include "esUtil.h"
 #include <stdlib.h>
 #include <math.h>
+#include <string.h>
 
 ///
 // Defines
 //
 #define ES_PI  (3.14159265f)
 
 //////////////////////////////////////////////////////////////////
 //
 //  Private Functions
 //
@@ skipping 11 matching lines @@
 /// \brief Generates geometry for a sphere.  Allocates memory for the vertex data and stores 
 ///        the results in the arrays.  Generate index list for a TRIANGLE_STRIP
 /// \param numSlices The number of slices in the sphere
 /// \param vertices If not NULL, will contain array of float3 positions
 /// \param normals If not NULL, will contain array of float3 normals
 /// \param texCoords If not NULL, will contain array of float2 texCoords
 /// \param indices If not NULL, will contain the array of indices for the triangle strip
 /// \return The number of indices required for rendering the buffers (the number of indices stored in the indices array
 ///         if it is not NULL ) as a GL_TRIANGLE_STRIP
 //
-int ESUTIL_API esGenSphere ( int numSlices, float radius, GLfloat **vertices, GLfloat **normals, 
-                             GLfloat **texCoords, GLuint **indices )
+int esGenSphere ( int numSlices, float radius, GLfloat **vertices, GLfloat **normals, 
+                  GLfloat **texCoords, GLuint **indices )
 {
    int i;
    int j;
    int numParallels = numSlices / 2;
    int numVertices = ( numParallels + 1 ) * ( numSlices + 1 );
    int numIndices = numParallels * numSlices * 6;
    float angleStep = (2.0f * ES_PI) / ((float) numSlices);
 
    // Allocate memory for buffers
    if ( vertices != NULL )
@@ skipping 65 matching lines @@
 /// \brief Generates geometry for a cube.  Allocates memory for the vertex data and stores 
 ///        the results in the arrays.  Generate index list for a TRIANGLES
 /// \param scale The size of the cube, use 1.0 for a unit cube.
 /// \param vertices If not NULL, will contain array of float3 positions
 /// \param normals If not NULL, will contain array of float3 normals
 /// \param texCoords If not NULL, will contain array of float2 texCoords
 /// \param indices If not NULL, will contain the array of indices for the triangle strip
 /// \return The number of indices required for rendering the buffers (the number of indices stored in the indices array
 ///         if it is not NULL ) as a GL_TRIANGLE_STRIP
 //
-int ESUTIL_API esGenCube ( float scale, GLfloat **vertices, GLfloat **normals, 
-                           GLfloat **texCoords, GLuint **indices )
+int esGenCube ( float scale, GLfloat **vertices, GLfloat **normals, 
+                GLfloat **texCoords, GLuint **indices )
 {
    int i;
    int numVertices = 24;
    int numIndices = 36;
    
    GLfloat cubeVerts[] =
    {
       -0.5f, -0.5f, -0.5f,
       -0.5f, -0.5f,  0.5f,
       0.5f, -0.5f,  0.5f,
@@ skipping 118 matching lines @@
          20, 23, 22,
          20, 22, 21
       };
 
       *indices = malloc ( sizeof(GLuint) * numIndices );
       memcpy( *indices, cubeIndices, sizeof( cubeIndices ) );
    }
 
    return numIndices;
 }