cmake_minimum_required(VERSION 3.16.0)
project(gles-compatibility-layer)

# Build
add_library(gles-compatibility-layer STATIC src/state.c src/passthrough.c src/matrix.c src/draw.c)
target_link_libraries(gles-compatibility-layer m)
target_include_directories(gles-compatibility-layer PUBLIC include)

# Shaders
include(cmake/util.cmake)
embed_resource(gles-compatibility-layer src/shaders/main.vsh)
embed_resource(gles-compatibility-layer src/shaders/main.fsh)

# Warnings
target_compile_options(gles-compatibility-layer PRIVATE -Wall -Wextra -Werror -Wpointer-arith -Wshadow -Wnull-dereference)

# GLFW/SDL
option(GLES_COMPATIBILITY_LAYER_USE_SDL "Use SDL" TRUE)
if(GLES_COMPATIBILITY_LAYER_USE_SDL)
    target_compile_definitions(gles-compatibility-layer PUBLIC GLES_COMPATIBILITY_LAYER_USE_SDL)
endif()

# Dependencies
set(GLES_COMPATIBILITY_LAYER_DEPENDENCY "" CACHE STRING "Compatibility Layer Dependency")
if(NOT GLES_COMPATIBILITY_LAYER_DEPENDENCY)
    if(GLES_COMPATIBILITY_LAYER_USE_SDL)
        find_package(SDL2 REQUIRED)
        target_link_libraries(gles-compatibility-layer SDL2::SDL2)
    else()
        find_package(glfw3 3.3 REQUIRED)
        target_link_libraries(gles-compatibility-layer glfw)
    endif()
else()
    target_link_libraries(gles-compatibility-layer "${GLES_COMPATIBILITY_LAYER_DEPENDENCY}")
endif()