Replace GLEW with a glLoadGen loader.

This should fix the GL loading errors that occur in some drivers due to
the use of deprecated functions by GLEW. Side benefits are more accurate
auto-completion (deprecated function and symbols don't exist) and faster
pointer loading (less entrypoints to load). In addition it removes an
external library depency, simplifying the build system a bit and
eliminating one set of binary libraries for Windows.

.travis-deps.sh

@@ -6,7 +6,7 @@ set -e
 if [ "$TRAVIS_OS_NAME" = linux -o -z "$TRAVIS_OS_NAME" ]; then
     sudo add-apt-repository ppa:ubuntu-toolchain-r/test -y
     sudo apt-get -qq update
-    sudo apt-get -qq install g++-4.8 xorg-dev libglu1-mesa-dev libglew-dev libxcursor-dev
+    sudo apt-get -qq install g++-4.8 xorg-dev libglu1-mesa-dev libxcursor-dev
     sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-4.8 90
     git clone https://github.com/glfw/glfw.git
     mkdir glfw/build && cd glfw/build
@@ -14,5 +14,5 @@ if [ "$TRAVIS_OS_NAME" = linux -o -z "$TRAVIS_OS_NAME" ]; then
     cd -	
 elif [ "$TRAVIS_OS_NAME" = osx ]; then
     brew tap homebrew/versions
-    brew install glew qt5 glfw3 pkgconfig
+    brew install qt5 glfw3 pkgconfig
 fi

CMakeLists.txt

@@ -19,7 +19,6 @@ list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/externals/cmake-modul
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${CMAKE_SOURCE_DIR}/CMakeTests)
 include(FindX11 REQUIRED)
 find_package(PkgConfig REQUIRED)
-find_package(GLEW REQUIRED)
 find_package(OpenGL REQUIRED)
 pkg_search_module(GLFW REQUIRED glfw3)
 
@@ -33,7 +32,6 @@ ENDIF (APPLE)
 #external includes
 include_directories(${GLFW_INCLUDE_DIRS})
 include_directories(${OPENGL_INCLUDE_DIR})
-include_directories(${GLEW_INCLUDE_PATH})
 
 # workaround for GLFW linking on OSX
 link_directories(${GLFW_LIBRARY_DIRS})

externals/cmake-modules/FindGLEW.cmake

@@ -1,47 +0,0 @@
-#
-# Try to find GLEW library and include path.
-# Once done this will define
-#
-# GLEW_FOUND
-# GLEW_INCLUDE_PATH
-# GLEW_LIBRARY
-#
-
-IF (WIN32)
-    FIND_PATH( GLEW_INCLUDE_PATH GL/glew.h
-        $ENV{PROGRAMFILES}/GLEW/include
-        ${PROJECT_SOURCE_DIR}/src/nvgl/glew/include
-        DOC "The directory where GL/glew.h resides")
-    FIND_LIBRARY( GLEW_LIBRARY
-        NAMES glew GLEW glew32 glew32s
-        PATHS
-        $ENV{PROGRAMFILES}/GLEW/lib
-        ${PROJECT_SOURCE_DIR}/src/nvgl/glew/bin
-        ${PROJECT_SOURCE_DIR}/src/nvgl/glew/lib
-        DOC "The GLEW library")
-ELSE (WIN32)
-    FIND_PATH( GLEW_INCLUDE_PATH GL/glew.h
-        /usr/include
-        /usr/local/include
-        /sw/include
-        /opt/local/include
-        DOC "The directory where GL/glew.h resides")
-    FIND_LIBRARY( GLEW_LIBRARY
-        NAMES GLEW glew
-        PATHS
-        /usr/lib64
-        /usr/lib
-        /usr/local/lib64
-        /usr/local/lib
-        /sw/lib
-        /opt/local/lib
-        DOC "The GLEW library")
-ENDIF (WIN32)
-
-IF (GLEW_INCLUDE_PATH)
-    SET( GLEW_FOUND 1 CACHE STRING "Set to 1 if GLEW is found, 0 otherwise")
-ELSE (GLEW_INCLUDE_PATH)
-    SET( GLEW_FOUND 0 CACHE STRING "Set to 1 if GLEW is found, 0 otherwise")
-ENDIF (GLEW_INCLUDE_PATH)
-
-MARK_AS_ADVANCED( GLEW_FOUND )

externals/glew-1.10.0/LICENSE.txt

@@ -1,73 +0,0 @@
-The OpenGL Extension Wrangler Library
-Copyright (C) 2002-2007, Milan Ikits <milan ikits[]ieee org>
-Copyright (C) 2002-2007, Marcelo E. Magallon <mmagallo[]debian org>
-Copyright (C) 2002, Lev Povalahev
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without 
-modification, are permitted provided that the following conditions are met:
-
-* Redistributions of source code must retain the above copyright notice, 
-  this list of conditions and the following disclaimer.
-* Redistributions in binary form must reproduce the above copyright notice, 
-  this list of conditions and the following disclaimer in the documentation 
-  and/or other materials provided with the distribution.
-* The name of the author may be used to endorse or promote products 
-  derived from this software without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
-AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
-LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
-CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
-SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
-CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
-THE POSSIBILITY OF SUCH DAMAGE.
-
-
-Mesa 3-D graphics library
-Version:  7.0
-
-Copyright (C) 1999-2007  Brian Paul   All Rights Reserved.
-
-Permission is hereby granted, free of charge, to any person obtaining a
-copy of this software and associated documentation files (the "Software"),
-to deal in the Software without restriction, including without limitation
-the rights to use, copy, modify, merge, publish, distribute, sublicense,
-and/or sell copies of the Software, and to permit persons to whom the
-Software is furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included
-in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
-BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
-AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-
-Copyright (c) 2007 The Khronos Group Inc.
-
-Permission is hereby granted, free of charge, to any person obtaining a
-copy of this software and/or associated documentation files (the
-"Materials"), to deal in the Materials without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sublicense, and/or sell copies of the Materials, and to
-permit persons to whom the Materials are furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice shall be included
-in all copies or substantial portions of the Materials.
-
-THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
-IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
-CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
-TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
-MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.

externals/glew-1.10.0/README.txt

@@ -1,18 +0,0 @@
-See doc/index.html for more information.
-
-If you downloaded the tarball from the GLEW website, you just need to:
-
-    Unix:
-
-        make
-
-    Windows:
-
-        use the project file in build/vc6/
-
-If you wish to build GLEW from scratch (update the extension data from
-the net or add your own extension information), you need a Unix
-environment (including wget, perl, and GNU make).  The extension data
-is regenerated from the top level source directory with:
-
-        make extensions

externals/glew-1.10.0/TODO.txt

@@ -1,12 +0,0 @@
-Major:
- - add support for windows mini-client drivers
- - add windows installer (msi)
- - separate build of static and shared object files (for mingw and
- cygwin)
- - start designing GLEW 2.0
-
-Minor:
- - make auto scripts work with text mode cygwin mounts
- - add support for all SUN, MTX, and OML extensions
- - make auto/Makefile more robust against auto/core/*~ mistakes
- - web poll on separating glew, glxew and wglew

src/citra/CMakeLists.txt

@@ -10,9 +10,9 @@ endif()
 add_executable(citra ${SRCS} ${HEADERS})
 
 if (APPLE)
-    target_link_libraries(citra core common video_core iconv pthread ${COREFOUNDATION_LIBRARY} ${OPENGL_LIBRARIES} ${GLEW_LIBRARY} ${GLFW_LIBRARIES})
+    target_link_libraries(citra core common video_core iconv pthread ${COREFOUNDATION_LIBRARY} ${OPENGL_LIBRARIES} ${GLFW_LIBRARIES})
 else()
-    target_link_libraries(citra core common video_core GLEW pthread X11 Xxf86vm Xi Xcursor ${OPENGL_LIBRARIES} ${GLFW_LIBRARIES} rt ${X11_Xrandr_LIB} ${X11_xv86vmode_LIB} ${PNG_LIBRARIES})
+    target_link_libraries(citra core common video_core pthread X11 Xxf86vm Xi Xcursor ${OPENGL_LIBRARIES} ${GLFW_LIBRARIES} rt ${X11_Xrandr_LIB} ${X11_xv86vmode_LIB} ${PNG_LIBRARIES})
 endif()
 
 #install(TARGETS citra RUNTIME DESTINATION ${bindir})

src/citra/emu_window/emu_window_glfw.h

@@ -4,7 +4,6 @@
 
 #pragma once
 
-#include <GL/glew.h>
 #include <GLFW/glfw3.h>
 
 #include "common/emu_window.h"

src/citra_qt/CMakeLists.txt

@@ -47,7 +47,7 @@ else()
 	set(RT_LIBRARY rt)
 endif()
 
-target_link_libraries(citra-qt core common video_core qhexedit ${ICONV_LIBRARY} ${COREFOUNDATION_LIBRARY} ${QT_LIBRARIES} ${OPENGL_LIBRARIES} ${RT_LIBRARY} ${GLEW_LIBRARY} ${PNG_LIBRARIES})
+target_link_libraries(citra-qt core common video_core qhexedit ${ICONV_LIBRARY} ${COREFOUNDATION_LIBRARY} ${QT_LIBRARIES} ${OPENGL_LIBRARIES} ${RT_LIBRARY} ${PNG_LIBRARIES})
 if(USE_QT5)
     target_link_libraries(citra-qt Qt5::Gui Qt5::Widgets Qt5::OpenGL)
 endif()

src/video_core/CMakeLists.txt

@@ -5,6 +5,7 @@ set(SRCS    clipper.cpp
             utils.cpp
             vertex_shader.cpp
             video_core.cpp
+            renderer_opengl/generated/gl_3_2_core.c
             renderer_opengl/renderer_opengl.cpp
             renderer_opengl/gl_shader_util.cpp
             debug_utils/debug_utils.cpp)
@@ -19,6 +20,7 @@ set(HEADERS clipper.h
             renderer_base.h
             vertex_shader.h
             video_core.h
+            renderer_opengl/generated/gl_3_2_core.h
             renderer_opengl/renderer_opengl.h
             renderer_opengl/gl_shader_util.h
             renderer_opengl/gl_shaders.h

src/video_core/renderer_opengl/generated/Readme.md

@@ -0,0 +1,5 @@
+These file were generated by the [glLoadGen](https://bitbucket.org/alfonse/glloadgen/wiki/Home) OpenGL loader generator and have been checked in as-is. You can re-generate them using version 2.0.2 of glLoadGen and executing the following command:
+
+```
+lua LoadGen.lua -version 3.2 -profile core -indent space 3_2_core
+```

src/video_core/renderer_opengl/gl_shader_util.h

@@ -4,7 +4,7 @@
 
 #pragma once
 
-#include <GL/glew.h>
+#include "generated/gl_3_2_core.h"
 
 namespace ShaderUtil {
 

src/video_core/renderer_opengl/renderer_opengl.cpp

@@ -247,10 +247,9 @@ void RendererOpenGL::SetWindow(EmuWindow* window) {
 void RendererOpenGL::Init() {
     render_window->MakeCurrent();
 
-    GLenum err = glewInit();
-    if (GLEW_OK != err) {
-        ERROR_LOG(RENDER, "Failed to initialize GLEW! Error message: \"%s\". Exiting...",
-                  glewGetErrorString(err));
+    int err = ogl_LoadFunctions();
+    if (ogl_LOAD_SUCCEEDED != err) {
+        ERROR_LOG(RENDER, "Failed to initialize GL functions! Exiting...");
         exit(-1);
     }
 
@@ -265,7 +264,6 @@ void RendererOpenGL::Init() {
 
     // Initialize everything else
     // --------------------------
-
     InitFramebuffer();
 
     NOTICE_LOG(RENDER, "GL_VERSION: %s\n", glGetString(GL_VERSION));

src/video_core/renderer_opengl/renderer_opengl.h

@@ -4,7 +4,7 @@
 
 #pragma once
 
-#include <GL/glew.h>
+#include "generated/gl_3_2_core.h"
 
 #include "common/common.h"
 #include "common/emu_window.h"

src/video_core/video_core.cpp

@@ -30,11 +30,6 @@ void Start() {
 
 /// Initialize the video core
 void Init(EmuWindow* emu_window) {
-
-    // Required in order for GLFW to work on Linux, 
-    // or for GL contexts above 2.x on OS X
-    glewExperimental = GL_TRUE;
-
     g_emu_window = emu_window;
     g_renderer = new RendererOpenGL();
     g_renderer->SetWindow(g_emu_window);

src/video_core/video_core.vcxproj

@@ -20,6 +20,7 @@
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="debug_utils\debug_utils.cpp" />
+    <ClCompile Include="renderer_opengl\generated\gl_3_2_core.c" />
     <ClCompile Include="renderer_opengl\renderer_opengl.cpp" />
     <ClCompile Include="renderer_opengl\gl_shader_util.cpp" />
     <ClCompile Include="clipper.cpp" />
@@ -39,6 +40,7 @@
     <ClInclude Include="primitive_assembly.h" />
     <ClInclude Include="rasterizer.h" />
     <ClInclude Include="renderer_base.h" />
+    <ClInclude Include="renderer_opengl\generated\gl_3_2_core.h" />
     <ClInclude Include="utils.h" />
     <ClInclude Include="vertex_shader.h" />
     <ClInclude Include="video_core.h" />

src/video_core/video_core.vcxproj.filters

@@ -7,6 +7,9 @@
     <Filter Include="debug_utils">
       <UniqueIdentifier>{0ac498e6-bbd8-46e3-9d5f-e816546ab90e}</UniqueIdentifier>
     </Filter>
+    <Filter Include="renderer_opengl\generated">
+      <UniqueIdentifier>{00301d57-24b3-4717-86a4-0073d131eb78}</UniqueIdentifier>
+    </Filter>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="renderer_opengl\renderer_opengl.cpp">
@@ -25,6 +28,9 @@
     <ClCompile Include="debug_utils\debug_utils.cpp">
       <Filter>debug_utils</Filter>
     </ClCompile>
+    <ClCompile Include="renderer_opengl\generated\gl_3_2_core.c">
+      <Filter>renderer_opengl\generated</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="clipper.h" />
@@ -50,6 +56,9 @@
     <ClInclude Include="debug_utils\debug_utils.h">
       <Filter>debug_utils</Filter>
     </ClInclude>
+    <ClInclude Include="renderer_opengl\generated\gl_3_2_core.h">
+      <Filter>renderer_opengl\generated</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <Text Include="CMakeLists.txt" />

vsprops/app.props

@@ -11,7 +11,6 @@
   <ItemDefinitionGroup>
     <PostBuildEvent>
       <Command>xcopy "$(SolutionDir)data" "$(EmuBinDir)" /Y /S /D
-xcopy "$(ExternalsDir)glew-1.10.0\bin\Release\$(PlatformName)\glew32.dll" "$(EmuBinDir)" /Y /S /D
 xcopy "$(ExternalsDir)glfw-3.0.2\lib-msvc100\glfw3.dll" "$(EmuBinDir)" /Y /S /D
 %(Command)</Command>
     </PostBuildEvent>

vsprops/externals.props

@@ -9,14 +9,14 @@
   </PropertyGroup>
   <ItemDefinitionGroup>
     <ClCompile>
-      <AdditionalIncludeDirectories>$(ExternalsDir)glew-1.10.0\include;$(ExternalsDir)glfw-3.0.2\include;$(ExternalsDir)qhexedit;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(ExternalsDir)glfw-3.0.2\include;$(ExternalsDir)qhexedit;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>
       </PreprocessorDefinitions>
     </ClCompile>
     <Lib />
     <Link>
-      <AdditionalLibraryDirectories>$(ExternalsDir)glew-1.10.0\lib\Release\$(PlatformName);$(ExternalsDir)glfw-3.0.2\lib-msvc100;$(ExternalsDir)libjpeg;$(ExternalsDir)sdl-2.0.0\lib\$(PlatformName);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
-      <AdditionalDependencies>glfw3dll.lib;opengl32.lib;glew32.lib;glu32.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalLibraryDirectories>$(ExternalsDir)glfw-3.0.2\lib-msvc100;$(ExternalsDir)libjpeg;$(ExternalsDir)sdl-2.0.0\lib\$(PlatformName);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <AdditionalDependencies>glfw3dll.lib;opengl32.lib;glu32.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <IgnoreSpecificDefaultLibraries>
       </IgnoreSpecificDefaultLibraries>
     </Link>

vsprops/qt.props

@@ -19,7 +19,7 @@
       <QtUicExt>.h</QtUicExt>
     </UIC>
     <MOC>
-      <QtCommandLine>/I"$(SolutionDir)src" /I"$(ExternalsDir)glew-1.6.0\include" /I"$(ExternalsDir)sdl-1.2.15\include" /I"$(ExternalsDir)qhexedit"</QtCommandLine>
+      <QtCommandLine>/I"$(SolutionDir)src" /I"$(ExternalsDir)sdl-1.2.15\include" /I"$(ExternalsDir)qhexedit"</QtCommandLine>
       <QtKeywords>false</QtKeywords>
     </MOC>
     <Link />

vsprops/qt_libs_debug.props

@@ -9,7 +9,7 @@
     </Link>
     <MOC>
       <QtNoDebug>false</QtNoDebug>
-      <QtCommandLine>/I"$(SolutionDir)src" /I"$(ExternalsDir)glew-1.6.0\include" /I"$(ExternalsDir)sdl-1.2.15\include" /I"$(ExternalsDir)qhexedit" /D"_DEBUG"</QtCommandLine>
+      <QtCommandLine>/I"$(SolutionDir)src" /I"$(ExternalsDir)sdl-1.2.15\include" /I"$(ExternalsDir)qhexedit" /D"_DEBUG"</QtCommandLine>
     </MOC>
     <PostBuildEvent>
       <Command>xcopy "$(QtBinaryDir)QtCored4.dll" "$(EmuBinDir)" /Y /S /D