Added support for GLESv1_CM and GLESv2 client libraries.

CMake/modules/FindGLESv1.cmake

@@ -0,0 +1,16 @@
+# Find GLESv1
+#
+# GLESv1_INCLUDE_DIR
+# GLESv1_LIBRARY
+# GLESv1_FOUND
+
+find_path(GLESv1_INCLUDE_DIR NAMES GLES/gl.h)
+
+set(GLESv1_NAMES ${GLESv1_NAMES} GLESv1_CM)
+find_library(GLESv1_LIBRARY NAMES ${GLESv1_NAMES})
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(GLESv1 DEFAULT_MSG GLESv1_LIBRARY GLESv1_INCLUDE_DIR)
+
+mark_as_advanced(GLESv1_INCLUDE_DIR GLESv1_LIBRARY)
+

CMake/modules/FindGLESv2.cmake

@@ -0,0 +1,16 @@
+# Find GLESv2
+#
+# GLESv2_INCLUDE_DIR
+# GLESv2_LIBRARY
+# GLESv2_FOUND
+
+find_path(GLESv2_INCLUDE_DIR NAMES GLES2/gl2.h)
+
+set(GLESv2_NAMES ${GLESv2_NAMES} GLESv2)
+find_library(GLESv2_LIBRARY NAMES ${GLESv2_NAMES})
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(GLESv2 DEFAULT_MSG GLESv2_LIBRARY GLESv2_INCLUDE_DIR)
+
+mark_as_advanced(GLESv2_INCLUDE_DIR GLESv2_LIBRARY)
+

CMakeLists.txt

@@ -20,6 +20,19 @@ if (NOT APPLE)
 endif()
 
 if (GLFW_USE_EGL)
+    set(GLFW_CLIENT_LIBRARY "opengl" CACHE STRING
+        "The client library to use; one of: opengl, glesv1 or glesv2")
+
+    if (${GLFW_CLIENT_LIBRARY} STREQUAL "opengl")
+        set(_GLFW_USE_OPENGL 1)
+    elseif (${GLFW_CLIENT_LIBRARY} STREQUAL "glesv1")
+        set(_GLFW_USE_GLESV1 1)
+    elseif (${GLFW_CLIENT_LIBRARY} STREQUAL "glesv2")
+        set(_GLFW_USE_GLESV2 1)
+    else()
+        message(FATAL_ERROR "Unsupported client library")
+    endif()
+
     set(CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/CMake/modules)
     find_package(EGL REQUIRED)
 
@@ -27,7 +40,15 @@ if (GLFW_USE_EGL)
     set(GLFW_BUILD_TESTS OFF)
     message(STATUS "NOTE: Examples and tests are disabled for EGL")
 else()
+    set(_GLFW_USE_OPENGL 1)
+endif()
+
+if (_GLFW_USE_OPENGL)
     find_package(OpenGL REQUIRED)
+elseif (_GLFW_USE_GLESV1)
+    find_package(GLESv1 REQUIRED)
+elseif (_GLFW_USE_GLESV2)
+    find_package(GLESv2 REQUIRED)
 endif()
 
 find_package(Threads REQUIRED)
@@ -86,14 +107,10 @@ else()
 endif()
 
 #--------------------------------------------------------------------
-# Set up GLFW for Win32 and WGL on Windows
+# Set up GLFW for Win32
 #--------------------------------------------------------------------
 if (_GLFW_WIN32)
 
-    # Set up library and include paths
-    list(APPEND glfw_INCLUDE_DIRS ${OPENGL_INCLUDE_DIR})
-    list(APPEND glfw_LIBRARIES ${OPENGL_gl_LIBRARY})
-
     if (MSVC)
         option(USE_MSVC_RUNTIME_LIBRARY_DLL "Use MSVC runtime library DLL" ON)
 
@@ -116,6 +133,14 @@ if (_GLFW_WIN32)
     endif()
 endif()
 
+#--------------------------------------------------------------------
+# Set up GLFW for WGL
+#--------------------------------------------------------------------
+if (_GLFW_WGL)
+    list(APPEND glfw_INCLUDE_DIRS ${OPENGL_INCLUDE_DIR})
+    list(APPEND glfw_LIBRARIES ${OPENGL_gl_LIBRARY})
+endif()
+
 #--------------------------------------------------------------------
 # Set up GLFW for Xlib and GLX or EGL on Unix-like systems with X Windows
 #--------------------------------------------------------------------
@@ -123,8 +148,7 @@ if (_GLFW_X11)
 
     find_package(X11 REQUIRED)
 
-    set(GLFW_PKG_LIBS "")
-    set(GLFW_PKG_DEPS "x11")
+    set(GLFW_PKG_DEPS "${GLFW_PKG_DEPS} x11")
 
     # Set up library and include paths
     list(APPEND glfw_INCLUDE_DIRS ${X11_X11_INCLUDE_PATH})
@@ -183,7 +207,6 @@ endif()
 #--------------------------------------------------------------------
 if (_GLFW_GLX)
 
-    # Set up library and include paths
     list(APPEND glfw_INCLUDE_DIRS ${OPENGL_INCLUDE_DIR})
     list(APPEND glfw_LIBRARIES ${OPENGL_gl_LIBRARY})
 
@@ -233,11 +256,10 @@ if (_GLFW_GLX)
 endif()
 
 #--------------------------------------------------------------------
-# EGL Context
+# Use EGL for context creation
 #--------------------------------------------------------------------
 if (_GLFW_EGL)
 
-    # Set up library and include paths
     list(APPEND glfw_INCLUDE_DIRS ${EGL_INCLUDE_DIR})
     list(APPEND glfw_LIBRARIES ${EGL_LIBRARY})
 
@@ -247,10 +269,24 @@ if (_GLFW_EGL)
         set(GLFW_PKG_DEPS "${GLFW_PKG_DEPS} egl")
     endif()
 
+    if (_GLFW_USE_OPENGL)
+        list(APPEND glfw_LIBRARIES ${OPENGL_gl_LIBRARY})
+        list(APPEND glfw_INCLUDE_DIRS ${OPENGL_INCLUDE_DIR})
+        set(GLFW_PKG_DEPS "${GLFW_PKG_DEPS} gl")
+    elseif (_GLFW_USE_GLESV1)
+        list(APPEND glfw_LIBRARIES ${GLESv1_LIBRARY})
+        list(APPEND glfw_INCLUDE_DIRS ${GLESv1_INCLUDE_DIR})
+        set(GLFW_PKG_DEPS "${GLFW_PKG_DEPS} glesv1_cm")
+    elseif (_GLFW_USE_GLESV2)
+        list(APPEND glfw_LIBRARIES ${GLESv2_LIBRARY})
+        list(APPEND glfw_INCLUDE_DIRS ${GLESv2_INCLUDE_DIR})
+        set(GLFW_PKG_DEPS "${GLFW_PKG_DEPS} glesv2")
+    endif()
+
 endif()
 
 #--------------------------------------------------------------------
-# Set up GLFW for Cocoa and NSOpenGL on Mac OS X
+# Use Cocoa for window creation and NSOpenGL for context creation
 #--------------------------------------------------------------------
 if (_GLFW_COCOA AND _GLFW_NSGL)
         

src/config.h.in

@@ -64,6 +64,13 @@
 // Define this to 1 if glXGetProcAddressEXT is available
 #cmakedefine _GLFW_HAS_GLXGETPROCADDRESSEXT
 
+// Define this to 1 if using OpenGL as the client library
+#cmakedefine _GLFW_USE_OPENGL
+// Define this to 1 if using OpenGL ES 1.1 as the client library
+#cmakedefine _GLFW_USE_GLESV1
+// Define this to 1 if using OpenGL ES 2.0 as the client library
+#cmakedefine _GLFW_USE_GLESV2
+
 // The GLFW version as used by glfwGetVersionString
 #define _GLFW_VERSION_FULL "@GLFW_VERSION_FULL@"
 

src/context.c

@@ -390,6 +390,7 @@ GLboolean _glfwRefreshContextParams(void)
         return GL_FALSE;
     }
 
+#if defined(_GLFW_USE_OPENGL)
     if (window->glMajor > 2)
     {
         // OpenGL 3.0+ uses a different function for extension string retrieval
@@ -472,6 +473,7 @@ GLboolean _glfwRefreshContextParams(void)
                 window->glRobustness = GLFW_NO_RESET_NOTIFICATION;
         }
     }
+#endif // _GLFW_USE_OPENGL
 
     return GL_TRUE;
 }
@@ -659,6 +661,7 @@ GLFWAPI int glfwExtensionSupported(const char* extension)
                 return GL_TRUE;
         }
     }
+#if defined(_GLFW_USE_OPENGL)
     else
     {
         int i;
@@ -677,6 +680,7 @@ GLFWAPI int glfwExtensionSupported(const char* extension)
              }
         }
     }
+#endif // _GLFW_USE_OPENGL
 
     // Check if extension is in the platform-specific string
     return _glfwPlatformExtensionSupported(extension);

src/internal.h

@@ -81,16 +81,24 @@ typedef struct _GLFWmonitor     _GLFWmonitor;
 
 #include "config.h"
 
+#if defined(_GLFW_USE_GLESV1)
+ #define GLFW_INCLUDE_ES1
+#elif defined(_GLFW_USE_GLESV2)
+ #define GLFW_INCLUDE_ES2
+#endif
+
 // Disable the inclusion of the platform glext.h by gl.h to allow proper
 // inclusion of our own, newer glext.h below
 #define GL_GLEXT_LEGACY
 
 #include "../include/GL/glfw3.h"
 
-// This path may need to be changed if you build GLFW using your own setup
-// We ship and use our own copy of glext.h since GLFW uses fairly new
-// extensions and not all operating systems come with an up-to-date version
-#include "../support/GL/glext.h"
+#if defined(_GLFW_USE_OPENGL)
+ // This path may need to be changed if you build GLFW using your own setup
+ // GLFW comes with its own copy of glext.h since it uses fairly new extensions
+ // and not all development environments come with an up-to-date version
+ #include "../support/GL/glext.h"
+#endif
 
 #if defined(_GLFW_COCOA)
  #include "cocoa_platform.h"
@@ -227,7 +235,9 @@ struct _GLFWwindow
     GLboolean           glForward, glDebug;
     int                 glProfile;
     int                 glRobustness;
+#if defined(_GLFW_USE_OPENGL)
     PFNGLGETSTRINGIPROC GetStringi;
+#endif
 
     GLFWwindowposfun     windowPosCallback;
     GLFWwindowsizefun    windowSizeCallback;