- More implementations and dependencies for Linux Wayland support

cmake/opengl.cmake

@@ -0,0 +1,48 @@
+# ======================================================================================================================
+#  fennec, a free and open source game engine
+#  Copyright © 2025  Medusa Slockbower
+#
+#  This program is free software: you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation, either version 3 of the License, or
+#  (at your option) any later version.
+#
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License
+#  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+# ======================================================================================================================
+
+find_package(OpenGL)
+
+if(TARGET OpenGL::GL) # Core OpenGL Desktop Profile
+    list(APPEND FENNEC_LINK_LIBRARIES OpenGL::OpenGL)
+    list(APPEND FENNEC_COMPILE_DEFINITIONS FENNEC_GRAPHICS_OPENGL=1)
+
+elseif(TARGET OpenGL::GLES3) # OpenGL for Embedded Systems 3
+    list(APPEND FENNEC_LINK_LIBRARIES OpenGL::GLES3)
+    list(APPEND FENNEC_COMPILE_DEFINITIONS FENNEC_GRAPHICS_GLES3=1)
+
+elseif (TARGET OpenGL::GLES2) # OpenGL for Embedded Systems 2
+    list(APPEND FENNEC_LINK_LIBRARIES OpenGL::GLES2)
+    list(APPEND FENNEC_COMPILE_DEFINITIONS FENNEC_GRAPHICS_GLES2=1)
+
+else()
+    message(FATAL_ERROR "No Suitable OpenGL implementation found.")
+endif()
+
+if(FENNEC_GRAPHICS_WANT_EGL)
+    if(NOT TARGET OpenGL::EGL)
+        message(FATAL_ERROR "EGL Library not found.")
+    endif()
+
+    list(APPEND FENNEC_LINK_LIBRARIES OpenGL::EGL)
+    list(APPEND FENNEC_COMPILE_DEFINITIONS FENNEC_GRAPHICS_EGL=1)
+    list(APPEND FENNEC_EXTRA_SOURCES
+            include/fennec/platform/opengl/egl/context.h
+            include/fennec/platform/opengl/egl/surface.h
+    )
+endif()