# ======================================================================================================================
#  fennec, a free and open source game engine
#  Copyright © 2025 - 2026  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(Vulkan COMPONENTS glslang)

# MoltenVK for Apple Products
if(FENNEC_GRAPHICS_WANT_MOLTENVK)
    find_package(Vulkan COMPONENTS MoltenVK)
endif()


# Headers and Loaders
if( TARGET Vulkan::Headers # Base Headers and Meta-Loader
    AND TARGET Vulkan::glslang                     # GLSL Compilation
    AND (NOT FENNEC_GRAPHICS_WANT_MOLTENVK OR TARGET Vulkan::MoltenVK)
)
    # Link & Define Vulkan Libraries
    fennec_add_link_libraries(Vulkan::glslang)
    fennec_add_definitions(FENNEC_GRAPHICS_VULKAN=1)

    # Cmake Definition for Vulkan detection
    set(FENNEC_FOUND_VULKAN TRUE)

    # Add Vulkan Sources
    fennec_add_sources(
        include/fennec/renderers/vulkan/lib/forward.h

        include/fennec/renderers/vulkan/lib/app_info.h
        include/fennec/renderers/vulkan/lib/debug.h
        include/fennec/renderers/vulkan/lib/enum.h
        include/fennec/renderers/vulkan/lib/instance.h
        include/fennec/renderers/vulkan/lib/physical_device.h
        include/fennec/renderers/vulkan/lib/surface.h

        include/fennec/platform/vulkan/volk/volk.h source/platform/vulkan/volk/volk.c

        include/fennec/renderers/vulkan/vkcontext.h source/renderers/vulkan/vkcontext.cpp
        include/fennec/renderers/vulkan/vksurface.h source/renderers/vulkan/vksurface.cpp
    )
else()
    message(WARNING "No Suitable Vulkan implementation found.")
endif()