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fennec/cmake/opengl.cmake

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CMake

# ======================================================================================================================
# 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()