Good GLEW/GLUT search. Sample to show the fonts

I created a simple sample. And I created the cmake stuff to correctly
find and compile with GLUT & GLEW.
I tried to anticipate many situations where GLEW/GLUT install might lead
to a PITA. GLEW_LOCATION and GLUT_LOCATION are welcome to help this
sample to run.

.gitignore

@@ -161,3 +161,6 @@ pip-log.txt
 
 # Mac crap
 .DS_Store
+
+#specific to the project
+cmake_built

CMakeLists.txt

@@ -0,0 +1,65 @@
+cmake_minimum_required(VERSION 2.8)
+
+PROJECT( OpenGLText )
+
+# Specify the list of directories to search for cmake modules.
+set(CMAKE_MODULE_PATH
+    ${CMAKE_CURRENT_SOURCE_DIR}/cmake
+)
+
+set( CMAKE_PROGRAM_PATH "$ENV{PATH}")
+
+if( CMAKE_SIZEOF_VOID_P EQUAL 8 )
+  set (ARCH "x64" CACHE STRING "CPU Architecture")
+else ()
+  set (ARCH "x86" CACHE STRING "CPU Architecture")
+endif()
+
+set(EXECUTABLE_OUTPUT_PATH
+    ${PROJECT_BINARY_DIR}/bin
+    CACHE PATH
+    "Directory where executables will be stored"
+)
+
+if(UNIX) 
+  set(OS "linux")
+  add_definitions(-DLINUX)
+else(UNIX)
+  if(APPLE)
+  else(APPLE)
+    if(WIN32)
+      set(OS "win")
+      add_definitions(-DNOMINMAX)
+    endif(WIN32)
+  endif(APPLE)
+endif(UNIX)
+
+# Macro for adding files close to the executable
+macro(_copy_files_to_target target thefiles)
+    if(WIN32)
+        foreach (FFF ${thefiles} )
+			add_custom_command(
+			    TARGET ${target} POST_BUILD
+			    COMMAND ${CMAKE_COMMAND} -E copy_if_different
+			        "${PROJECT_SOURCE_DIR}/${FFF}"
+			        $<TARGET_FILE_DIR:${target}>
+			        VERBATIM
+			)
+        endforeach()
+    endif()
+
+endmacro()
+
+
+find_package(OpenGL)
+# ===============> GLUT
+find_package(GLUT)
+if(NOT GLUT_FOUND)
+  message(WARNING "Try to set GLUT_LOCATION")
+endif()
+# ===============> GLEW
+if (NOT APPLE)
+  find_package(GLEW REQUIRED)
+endif()
+
+add_subdirectory(example)

OpenGLText.cpp

@@ -51,7 +51,7 @@
 #   include "gl\glew.h"
 //#   include "logging.h"
 
-#include "oglText.h"
+#include "OpenGLText.h"
 #include "tga.h"
 
 #ifndef M_PI

README.md

@@ -56,4 +56,4 @@ __Few comments:__
     * we must link against Freetype library to have it working. This is flexible, of course (becaude we can directly read any .ttf file...), but this is not appropriate for my goal : one might not want to link against freetype library if he targeted Android or iOS...
     * The rendering loop... is not the efficient way to do. Each font is rendered separately. Our approach is to render almost everything in one single drawcall.
 
-The basic idea behing this patch is to allow me to save a tga file made of the character I need with the right size. a binary file will be created, in which structures of Glyphs are stored.
+The basic idea behind this patch is to allow me to save a tga file made of the character I need with the right size. a binary file will be created, in which structures of Glyphs are stored.

cmake/FindGLEW.cmake

@@ -0,0 +1,134 @@
+#
+
+# Try to find GLEW library and include path.
+# Once done this will define
+#
+# GLEW_FOUND
+# GLEW_INCLUDE_DIR
+# GLEW_LIBRARY
+# GLEW_SOURCE
+#
+
+include(FindPackageHandleStandardArgs)
+
+if (WIN32)
+    find_path( GLEW_INCLUDE_DIR
+        NAMES
+            GL/glew.h
+        PATHS
+            ${GLEW_LOCATION}/include
+            $ENV{GLEW_LOCATION}/include
+            $ENV{PROGRAMFILES}/GLEW/include
+            ${PROJECT_SOURCE_DIR}/extern/glew/include
+            DOC "The directory where GL/glew.h resides" )
+    find_file( GLEW_SOURCE
+        NAMES
+            glew.c
+        PATHS
+            ${GLEW_LOCATION}/src
+            $ENV{GLEW_LOCATION}/src
+            $ENV{PROGRAMFILES}/GLEW/src
+            ${PROJECT_SOURCE_DIR}/extern/glew/src
+            DOC "The directory where GL/glew.c resides" )
+    if(ARCH STREQUAL "x86")
+      find_library( GLEW_LIBRARY
+          NAMES
+              glew GLEW glew32s glew32
+          PATHS
+              ${GLEW_LOCATION}/lib
+              ${GLEW_LOCATION}/lib/x86
+              ${GLEW_LOCATION}/lib/win32
+              $ENV{GLEW_LOCATION}/lib
+              $ENV{GLEW_LOCATION}/lib/x86
+              $ENV{GLEW_LOCATION}/lib/win32
+              $ENV{PROGRAMFILES}/GLEW/lib
+              $ENV{PROGRAMFILES}/GLEW/lib/x86
+              $ENV{PROGRAMFILES}/GLEW/lib/win32
+              ${PROJECT_SOURCE_DIR}/extern/glew/bin
+              ${PROJECT_SOURCE_DIR}/extern/glew/lib
+              ${PROJECT_SOURCE_DIR}/extern/glew/lib/x86
+              ${PROJECT_SOURCE_DIR}/extern/glew/lib/win32
+              DOC "The GLEW library")
+    else()
+      find_library( GLEW_LIBRARY
+          NAMES
+              glew GLEW glew32s glew32
+          PATHS
+              ${GLEW_LOCATION}/lib/x64
+              $ENV{GLEW_LOCATION}/lib/x64
+              $ENV{PROGRAMFILES}/GLEW/lib/x64
+              ${PROJECT_SOURCE_DIR}/extern/glew/bin
+              ${PROJECT_SOURCE_DIR}/extern/glew/lib/x64
+              ${GLEW_LOCATION}/lib
+              $ENV{GLEW_LOCATION}/lib
+              $ENV{PROGRAMFILES}/GLEW/lib
+              ${PROJECT_SOURCE_DIR}/extern/glew/lib
+              DOC "The GLEW library")
+    endif()
+endif ()
+
+if (${CMAKE_HOST_UNIX})
+    find_path( GLEW_INCLUDE_DIR
+        NAMES
+            GL/glew.h
+        PATHS
+            ${GLEW_LOCATION}/include
+            $ENV{GLEW_LOCATION}/include
+            /usr/include
+            /usr/local/include
+            /sw/include
+            /opt/local/include
+            NO_DEFAULT_PATH
+            DOC "The directory where GL/glew.h resides"
+    )
+    find_library( GLEW_LIBRARY
+        NAMES
+            GLEW glew
+        PATHS
+            ${GLEW_LOCATION}/lib
+            $ENV{GLEW_LOCATION}/lib
+            /usr/lib64
+            /usr/lib
+            /usr/local/lib64
+            /usr/local/lib
+            /sw/lib
+            /opt/local/lib
+            NO_DEFAULT_PATH
+            DOC "The GLEW library")
+endif ()
+
+if (GLEW_INCLUDE_DIR AND EXISTS "${GLEW_INCLUDE_DIR}/GL/glew.h")
+
+   file(STRINGS "${GLEW_INCLUDE_DIR}/GL/glew.h" GLEW_4_2 REGEX "^#define GL_VERSION_4_2.*$")
+   if (GLEW_4_2)
+       SET(OPENGL_4_2_FOUND TRUE)
+   else ()
+       message(WARNING
+       "glew-1.7.0 or newer needed for supporting OpenGL 4.2 dependent features"
+       )
+   endif ()
+
+   file(STRINGS "${GLEW_INCLUDE_DIR}/GL/glew.h" GLEW_4_3 REGEX "^#define GL_VERSION_4_3.*$")
+   if (GLEW_4_3)
+       SET(OPENGL_4_3_FOUND TRUE)
+   else ()
+       message(WARNING
+       "glew-1.9.0 or newer needed for supporting OpenGL 4.3 dependent features"
+       )
+   endif ()
+
+endif ()
+
+if(GLEW_SOURCE)
+find_package_handle_standard_args(GLEW DEFAULT_MSG
+    GLEW_INCLUDE_DIR
+    GLEW_SOURCE
+)
+else()
+find_package_handle_standard_args(GLEW DEFAULT_MSG
+    GLEW_INCLUDE_DIR
+    GLEW_LIBRARY
+)
+endif()
+
+mark_as_advanced( GLEW_FOUND )