Prepare cmake files

.clang-format

@@ -0,0 +1,90 @@
+---
+AlignConsecutiveMacros: Consecutive
+AlignConsecutiveAssignments: None
+AlignConsecutiveBitFields: None
+AlignConsecutiveDeclarations: None
+AlignEscapedNewlines: Right
+AlignOperands: Align
+AlignTrailingComments: true
+
+AllowAllArgumentsOnNextLine: true
+AllowAllParametersOfDeclarationOnNextLine: true
+AllowShortEnumsOnASingleLine: true
+AllowShortBlocksOnASingleLine: Never
+AllowShortCaseLabelsOnASingleLine: false
+AllowShortFunctionsOnASingleLine: All
+AllowShortIfStatementsOnASingleLine: Never
+AllowShortLoopsOnASingleLine: false
+
+AlwaysBreakAfterDefinitionReturnType: None
+AlwaysBreakAfterReturnType: None
+AlwaysBreakBeforeMultilineStrings: false
+AlwaysBreakTemplateDeclarations: MultiLine
+
+# Custom brace breaking
+BreakBeforeBraces: Custom
+BraceWrapping:
+  AfterCaseLabel: true
+  AfterClass: true
+  AfterControlStatement: Never
+  AfterEnum: true
+  AfterFunction: true
+  AfterNamespace: true
+  AfterObjCDeclaration: true
+  AfterStruct: true
+  AfterUnion: true
+  AfterExternBlock: false
+  BeforeElse: false
+  BeforeWhile: false
+  IndentBraces: false
+  SplitEmptyFunction: true
+  SplitEmptyRecord: true
+
+# Make the closing brace of container literals go to a new line
+Cpp11BracedListStyle: false
+
+# Never format includes
+IncludeBlocks: Preserve
+# clang-format version 4.0 through 12.0:
+#SortIncludes: false
+# clang-format version 13.0+:
+#SortIncludes: Never
+
+# No length limit, in case it breaks macros, you can
+# disable it with /* clang-format off/on */ comments
+ColumnLimit: 0
+
+IndentWidth: 4
+ContinuationIndentWidth: 4
+IndentCaseLabels: false
+IndentCaseBlocks: false
+IndentGotoLabels: true
+IndentPPDirectives: None
+IndentExternBlock: NoIndent
+
+PointerAlignment: Right
+SpaceAfterCStyleCast: false
+SpacesInCStyleCastParentheses: false
+SpacesInConditionalStatement: false
+SpacesInContainerLiterals: true
+SpaceBeforeAssignmentOperators: true
+SpaceBeforeCaseColon: false
+SpaceBeforeParens: ControlStatements
+SpaceAroundPointerQualifiers: Default
+SpaceInEmptyBlock: false
+SpaceInEmptyParentheses: false
+
+UseCRLF: false
+UseTab: Never
+
+ForEachMacros:
+  [
+    "spa_list_for_each",
+    "spa_list_for_each_safe",
+    "wl_list_for_each",
+    "wl_array_for_each",
+    "udev_list_entry_foreach",
+  ]
+
+---
+

CMakeLists.txt

@@ -0,0 +1,43 @@
+cmake_minimum_required(VERSION 3.13)
+project(OpenGX VERSION 0.1)
+
+set(CMAKE_C_STANDARD 11)
+
+set(TARGET opengx)
+
+include(GNUInstallDirs)
+
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(SDL REQUIRED IMPORTED_TARGET sdl2)
+
+add_library(${TARGET} STATIC
+    src/gc_gl.c
+    src/image_DXT.c
+    src/image_DXT.h
+    src/opengx.h
+)
+set_target_properties(${TARGET} PROPERTIES
+    PUBLIC_HEADER src/opengx.h
+)
+
+target_include_directories(${TARGET} PUBLIC
+    ${CMAKE_CURRENT_SOURCE_DIR}/include
+)
+
+target_link_libraries(${TARGET} PUBLIC
+    PkgConfig::SDL
+)
+
+configure_file(opengl.pc.in opengl.pc @ONLY)
+
+install(TARGETS ${TARGET}
+    LIBRARY
+    ARCHIVE
+    RUNTIME
+    PUBLIC_HEADER
+)
+install(DIRECTORY "include/GL" DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}")
+install(FILES ${CMAKE_CURRENT_BINARY_DIR}/opengl.pc
+        DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
+install(FILES OpenGLConfig.cmake
+        DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/OpenGL")

OpenGLConfig.cmake

@@ -0,0 +1,39 @@
+find_path(_OPENGL_gl_gl_INCLUDE_DIR NAMES GL/gl.h)
+find_path(_OPENGL_gl_egl_INCLUDE_DIR NAMES EGL/egl.h)
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(OpenGL
+	REQUIRED_VARS _OPENGL_gl_gl_INCLUDE_DIR
+)
+
+set(_OPENGL_glapi_LIBRARY "opengx")
+set(OPENGL_FOUND ${OpenGL_FOUND})
+set(OPENGL_XMESA_FOUND OFF)
+set(OPENGL_GLU_FOUND OFF)
+set(OPENGL_OpenGL_FOUND ${OpenGL_FOUND})
+set(OpenGL_GLX_FOUND OFF)
+set(OpenGL_EGL_FOUND ${OpenGL_FOUND})
+set(OPENGL_INCLUDE_DIR ${_OPENGL_gl_gl_INCLUDE_DIR})
+set(OPENGL_EGL_INCLUDE_DIRS ${_OPENGL_gl_egl_INCLUDE_DIR})
+set(OPENGL_LIBRARIES ${OPENGL_egl_LIBRARY} ${_OPENGL_glapi_LIBRARY})
+
+set(OPENGL_LIBRARY ${OPENGL_LIBRARIES})
+set(OPENGL_INCLUDE_PATH ${OPENGL_INCLUDE_DIR})
+
+if(OpenGL_FOUND)
+	if(NOT TARGET OpenGL::EGL)
+		add_library(OpenGL::EGL INTERFACE IMPORTED)
+		set_target_properties(OpenGL::EGL PROPERTIES
+			INTERFACE_INCLUDE_DIRECTORIES "${_OPENGL_gl_egl_INCLUDE_DIR}"
+			INTERFACE_LINK_LIBRARIES "${OPENGL_egl_LIBRARY};${_OPENGL_glapi_LIBRARY}"
+		)
+	endif()
+
+	if(NOT TARGET OpenGL::GL)
+		add_library(OpenGL::GL INTERFACE IMPORTED)
+		set_target_properties(OpenGL::GL PROPERTIES
+			INTERFACE_INCLUDE_DIRECTORIES "${_OPENGL_gl_gl_INCLUDE_DIR}"
+			INTERFACE_LINK_LIBRARIES "${OPENGL_egl_LIBRARY};${_OPENGL_glapi_LIBRARY}"
+		)
+	endif()
+endif()

nehe_lessons/lesson07/lesson07.c

@@ -476,7 +476,8 @@ int main( int argc, char **argv )
 	}
 
 	#ifdef GAMECUBE_WII
-	InitializeGLdata();
+	// TODO: this should not be here, SDL will take care of this
+	ogx_initialize();
 	#endif
 
     /* initialize OpenGL */

opengl.pc.in

@@ -0,0 +1,9 @@
+prefix=@CMAKE_INSTALL_PREFIX@
+libdir=${prefix}/lib
+includedir=${prefix}/include
+
+Name: OpenGL
+Description: OpenGL (without GLX) library and headers.
+Version: @PROJECT_VERSION@
+Libs: -L${libdir} -lopengx
+Cflags: -I${includedir}