esUtil.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include <GLES2/gl2.h>
#include <EGL/egl.h>
#include "esUtil.h"
#include "esUtil_win.h"

Functions
EGLBoolean	CreateEGLContext (NativeWindowType hWnd, EGLDisplay *eglDisplay, EGLContext *eglContext, EGLSurface *eglSurface, EGLint attribList[])
void ESUTIL_API	esInitContext (ESContext *esContext)
	Initialize ES framework context. This must be called before calling any other functions.
GLboolean ESUTIL_API	esCreateWindow (ESContext *esContext, const char *title, GLint width, GLint height, GLuint flags)
	Create a window with the specified parameters.
void ESUTIL_API	esMainLoop (ESContext *esContext)
	Start the main loop for the OpenGL ES application.
void ESUTIL_API	esRegisterDrawFunc (ESContext *esContext, void(ESCALLBACK *drawFunc)(ESContext *))
	Register a draw callback function to be used to render each frame.
void ESUTIL_API	esRegisterUpdateFunc (ESContext *esContext, void(ESCALLBACK *updateFunc)(ESContext *, float))
	Register an update callback function to be used to update on each time step.
void ESUTIL_API	esRegisterKeyFunc (ESContext *esContext, void(ESCALLBACK *keyFunc)(ESContext *, unsigned char, int, int))
void ESUTIL_API	esLogMessage (const char *formatStr,...)
	Log a message to the debug output for the platform.
char *ESUTIL_API	esLoadTGA (char *fileName, int *width, int *height)
	Loads a 24-bit TGA image from a file.

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Function Documentation

EGLBoolean CreateEGLContext (  NativeWindowType  hWnd, EGLDisplay *  eglDisplay, EGLContext *  eglContext, EGLSurface *  eglSurface, EGLint  attribList[] )

GLboolean ESUTIL_API esCreateWindow (  ESContext *  esContext, const char *  title, GLint  width, GLint  height, GLuint  flags )

Create a window with the specified parameters. Parameters: esContext  Application context title  Name for title bar of window width  Width in pixels of window to create height  Height in pixels of window to create flags  Bitfield for the window creation flags ES_WINDOW_RGB - specifies that the color buffer should have R,G,B channels ES_WINDOW_ALPHA - specifies that the color buffer should have alpha ES_WINDOW_DEPTH - specifies that a depth buffer should be created ES_WINDOW_STENCIL - specifies that a stencil buffer should be created ES_WINDOW_MULTISAMPLE - specifies that a multi-sample buffer should be created Returns: GL_TRUE if window creation is succesful, GL_FALSE otherwise

void ESUTIL_API esInitContext (  ESContext *  esContext  )

Initialize ES framework context. This must be called before calling any other functions. Parameters: esContext  Application context

char* ESUTIL_API esLoadTGA (  char *  fileName, int *  width, int *  height )

Loads a 24-bit TGA image from a file. Parameters: fileName  Name of the file on disk width  Width of loaded image in pixels height  Height of loaded image in pixels Returns: Pointer to loaded image. NULL on failure.

void ESUTIL_API esLogMessage (  const char *  formatStr, ...  )

Log a message to the debug output for the platform. Parameters: formatStr  Format string for error log.

void ESUTIL_API esMainLoop (  ESContext *  esContext  )

Start the main loop for the OpenGL ES application. Parameters: esContext  Application context

void ESUTIL_API esRegisterDrawFunc (  ESContext *  esContext, void(ESCALLBACK *drawFunc  )(ESContext *) )

Register a draw callback function to be used to render each frame. Parameters: esContext  Application context drawFunc  Draw callback function that will be used to render the scene

void ESUTIL_API esRegisterKeyFunc (  ESContext *  esContext, void(ESCALLBACK *keyFunc  )(ESContext *, unsigned char, int, int) )

void ESUTIL_API esRegisterUpdateFunc (  ESContext *  esContext, void(ESCALLBACK *updateFunc  )(ESContext *, float) )

Register an update callback function to be used to update on each time step. Parameters: esContext  Application context updateFunc  Update callback function that will be used to render the scene

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