Renamed gles_book_examples to gles2_book to make it shorter and more correct....

third_party/gles_book_examples/Chapter_9/Simple_TextureCubemap/Simple_TextureCubemap.c

Index: third_party/gles_book_examples/Chapter_9/Simple_TextureCubemap/Simple_TextureCubemap.c
===================================================================
--- third_party/gles_book_examples/Chapter_9/Simple_TextureCubemap/Simple_TextureCubemap.c	(revision 35873)
+++ third_party/gles_book_examples/Chapter_9/Simple_TextureCubemap/Simple_TextureCubemap.c	(working copy)
@@ -1,229 +0,0 @@
-//
-// 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
-//
-
-// Simple_TextureCubemap.c
-//
-//    This is a simple example that draws a sphere with a cubemap image applied.
-//
-#include <stdlib.h>
-#include "esUtil.h"
-
-typedef struct
-{
-   // Handle to a program object
-   GLuint programObject;
-
-   // Attribute locations
-   GLint  positionLoc;
-   GLint  normalLoc;
-
-   // Sampler location
-   GLint samplerLoc;
-
-   // Texture handle
-   GLuint textureId;
-
-   // Vertex data
-   int      numIndices;
-   GLfloat *vertices;
-   GLfloat *normals;
-   GLuint  *indices;
-
-} UserData;
-
-///
-// Create a simple cubemap with a 1x1 face with a different
-// color for each face
-GLuint CreateSimpleTextureCubemap( )
-{
-   GLuint textureId;
-   // Six 1x1 RGB faces
-   GLubyte cubePixels[6][3] =
-   {
-      // Face 0 - Red
-      255, 0, 0,
-      // Face 1 - Green,
-      0, 255, 0, 
-      // Face 3 - Blue
-      0, 0, 255,
-      // Face 4 - Yellow
-      255, 255, 0,
-      // Face 5 - Purple
-      255, 0, 255,
-      // Face 6 - White
-      255, 255, 255
-   };
-   
-   // Generate a texture object
-   glGenTextures ( 1, &textureId );
-
-   // Bind the texture object
-   glBindTexture ( GL_TEXTURE_CUBE_MAP, textureId );
-   
-   // Load the cube face - Positive X
-   glTexImage2D ( GL_TEXTURE_CUBE_MAP_POSITIVE_X, 0, GL_RGB, 1, 1, 0, 
-                  GL_RGB, GL_UNSIGNED_BYTE, &cubePixels[0] );
-
-   // Load the cube face - Negative X
-   glTexImage2D ( GL_TEXTURE_CUBE_MAP_NEGATIVE_X, 0, GL_RGB, 1, 1, 0, 
-                  GL_RGB, GL_UNSIGNED_BYTE, &cubePixels[1] );
-
-   // Load the cube face - Positive Y
-   glTexImage2D ( GL_TEXTURE_CUBE_MAP_POSITIVE_Y, 0, GL_RGB, 1, 1, 0, 
-                  GL_RGB, GL_UNSIGNED_BYTE, &cubePixels[2] );
-
-   // Load the cube face - Negative Y
-   glTexImage2D ( GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, 0, GL_RGB, 1, 1, 0, 
-                  GL_RGB, GL_UNSIGNED_BYTE, &cubePixels[3] );
-
-   // Load the cube face - Positive Z
-   glTexImage2D ( GL_TEXTURE_CUBE_MAP_POSITIVE_Z, 0, GL_RGB, 1, 1, 0, 
-                  GL_RGB, GL_UNSIGNED_BYTE, &cubePixels[4] );
-
-   // Load the cube face - Negative Z
-   glTexImage2D ( GL_TEXTURE_CUBE_MAP_NEGATIVE_Z, 0, GL_RGB, 1, 1, 0, 
-                  GL_RGB, GL_UNSIGNED_BYTE, &cubePixels[5] );
-
-   // Set the filtering mode
-   glTexParameteri ( GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER, GL_NEAREST );
-   glTexParameteri ( GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAG_FILTER, GL_NEAREST );
-
-   return textureId;
-
-}
-
-
-///
-// Initialize the shader and program object
-//
-int Init ( ESContext *esContext )
-{
-   UserData *userData = esContext->userData;
-   GLbyte vShaderStr[] =  
-      "attribute vec4 a_position;   \n"
-      "attribute vec3 a_normal;     \n"
-      "varying vec3 v_normal;       \n"
-      "void main()                  \n"
-      "{                            \n"
-      "   gl_Position = a_position; \n"
-      "   v_normal = a_normal;      \n"
-      "}                            \n";
-   
-   GLbyte fShaderStr[] =  
-      "precision mediump float;                            \n"
-      "varying vec3 v_normal;                              \n"
-      "uniform samplerCube s_texture;                      \n"
-      "void main()                                         \n"
-      "{                                                   \n"
-      "  gl_FragColor = textureCube( s_texture, v_normal );\n"
-      "}                                                   \n";
-
-   // Load the shaders and get a linked program object
-   userData->programObject = esLoadProgram ( vShaderStr, fShaderStr );
-
-   // Get the attribute locations
-   userData->positionLoc = glGetAttribLocation ( userData->programObject, "a_position" );
-   userData->normalLoc = glGetAttribLocation ( userData->programObject, "a_normal" );
-   
-   // Get the sampler locations
-   userData->samplerLoc = glGetUniformLocation ( userData->programObject, "s_texture" );
-
-   // Load the texture
-   userData->textureId = CreateSimpleTextureCubemap ();
-
-   // Generate the vertex data
-   userData->numIndices = esGenSphere ( 20, 0.75f, &userData->vertices, &userData->normals, 
-                                        NULL, &userData->indices );
-
-   
-   glClearColor ( 0.0f, 0.0f, 0.0f, 0.0f );
-   return TRUE;
-}
-
-///
-// Draw a triangle using the shader pair created in Init()
-//
-void Draw ( ESContext *esContext )
-{
-   UserData *userData = esContext->userData;
-      
-   // Set the viewport
-   glViewport ( 0, 0, esContext->width, esContext->height );
-   
-   // Clear the color buffer
-   glClear ( GL_COLOR_BUFFER_BIT );
-
-   
-   glCullFace ( GL_BACK );
-   glEnable ( GL_CULL_FACE );
-   
-   // Use the program object
-   glUseProgram ( userData->programObject );
-
-   // Load the vertex position
-   glVertexAttribPointer ( userData->positionLoc, 3, GL_FLOAT, 
-                           GL_FALSE, 0, userData->vertices );
-   // Load the normal
-   glVertexAttribPointer ( userData->normalLoc, 3, GL_FLOAT,
-                           GL_FALSE, 0, userData->normals );
-
-   glEnableVertexAttribArray ( userData->positionLoc );
-   glEnableVertexAttribArray ( userData->normalLoc );
-
-   // Bind the texture
-   glActiveTexture ( GL_TEXTURE0 );
-   glBindTexture ( GL_TEXTURE_CUBE_MAP, userData->textureId );
-
-   // Set the sampler texture unit to 0
-   glUniform1i ( userData->samplerLoc, 0 );
-
-   glDrawElements ( GL_TRIANGLES, userData->numIndices, 
-                    GL_UNSIGNED_INT, userData->indices );
-
-   eglSwapBuffers ( esContext->eglDisplay, esContext->eglSurface );
-}
-
-///
-// Cleanup
-//
-void ShutDown ( ESContext *esContext )
-{
-   UserData *userData = esContext->userData;
-
-   // Delete texture object
-   glDeleteTextures ( 1, &userData->textureId );
-
-   // Delete program object
-   glDeleteProgram ( userData->programObject );
-
-   free ( userData->vertices );
-   free ( userData->normals );
-}
-
-
-int main ( int argc, char *argv[] )
-{
-   ESContext esContext;
-   UserData  userData;
-
-   esInitContext ( &esContext );
-   esContext.userData = &userData;
-
-   esCreateWindow ( &esContext, "Simple Texture Cubemap", 320, 240, ES_WINDOW_RGB );
-   
-   if ( !Init ( &esContext ) )
-      return 0;
-
-   esRegisterDrawFunc ( &esContext, Draw );
-   
-   esMainLoop ( &esContext );
-
-   ShutDown ( &esContext );
-}