From 9ff8f29f43067da2aa87d3636711ce47958e1f52 Mon Sep 17 00:00:00 2001 From: Anonymous Maarten Date: Fri, 3 Jun 2022 20:07:43 +0200 Subject: [PATCH] cmake: Add mini-SDL2 CMake project to test SDL2 prefixes --- cmake/test/CMakeLists.txt | 91 +++++++++++++++++++++++++++++++++++++++ cmake/test/main_cli.c | 14 ++++++ cmake/test/main_gui.c | 28 ++++++++++++ 3 files changed, 133 insertions(+) create mode 100644 cmake/test/CMakeLists.txt create mode 100644 cmake/test/main_cli.c create mode 100644 cmake/test/main_gui.c diff --git a/cmake/test/CMakeLists.txt b/cmake/test/CMakeLists.txt new file mode 100644 index 000000000..0cb729d96 --- /dev/null +++ b/cmake/test/CMakeLists.txt @@ -0,0 +1,91 @@ +# This cmake build script is meant for verifying the various CMake configuration script. + +cmake_minimum_required(VERSION 3.12) +project(sdl_test LANGUAGES C) + +cmake_policy(SET CMP0074 NEW) + +# Override CMAKE_FIND_ROOT_PATH_MODE to allow search for SDL2 outside of sysroot +set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE NEVER) + +include(FeatureSummary) + +option(TEST_SHARED "Test linking to shared SDL2 library" ON) +add_feature_info("TEST_SHARED" TEST_SHARED "Test linking with shared library") + +option(TEST_STATIC "Test linking to static SDL2 libary" ON) +add_feature_info("TEST_STATIC" TEST_STATIC "Test linking with static library") + +if(TEST_SHARED) + find_package(SDL2 REQUIRED CONFIG COMPONENTS SDL2) + if(EMSCRIPTEN OR (WIN32 AND NOT WINDOWS_STORE)) + find_package(SDL2 REQUIRED CONFIG COMPONENTS SDL2main) + endif() + add_executable(gui-shared WIN32 main_gui.c) + if(TARGET SDL2::SDL2main) + target_link_libraries(gui-shared PRIVATE SDL2::SDL2main) + endif() + target_link_libraries(gui-shared PRIVATE SDL2::SDL2) + if(WIN32) + add_custom_command(TARGET gui-shared POST_BUILD + COMMAND ${CMAKE_COMMAND} -E copy_if_different "$" "$" + ) + endif() + + add_executable(gui-shared-vars WIN32 main_gui.c) + target_link_libraries(gui-shared-vars PRIVATE ${SDL2_LIBRARIES}) + target_include_directories(gui-shared-vars PRIVATE ${SDL2_INCLUDE_DIRS}) + + add_executable(cli-shared main_cli.c) + target_link_libraries(cli-shared PRIVATE SDL2::SDL2) + if(WIN32) + add_custom_command(TARGET cli-shared POST_BUILD + COMMAND ${CMAKE_COMMAND} -E copy_if_different "$" "$" + ) + endif() + + # SDL2_LIBRARIES does not support creating a cli SDL2 application + # (it is possible that SDL2main is a stub, but we don't know for sure) + if(NOT TARGET SDL2::SDL2main) + add_executable(cli-shared-vars main_cli.c) + target_link_libraries(cli-shared-vars PRIVATE ${SDL2_LIBRARIES}) + target_include_directories(cli-shared-vars PRIVATE ${SDL2_INCLUDE_DIRS}) + endif() +endif() + +if(TEST_STATIC) + find_package(SDL2 REQUIRED CONFIG COMPONENTS SDL2-static) + if(EMSCRIPTEN OR (WIN32 AND NOT WINDOWS_STORE)) + find_package(SDL2 REQUIRED CONFIG COMPONENTS SDL2main) + endif() + add_executable(gui-static WIN32 main_gui.c) + if(TARGET SDL2::SDL2main) + target_link_libraries(gui-static PRIVATE SDL2::SDL2main) + endif() + target_link_libraries(gui-static PRIVATE SDL2::SDL2-static) + + add_executable(gui-static-vars WIN32 main_gui.c) + target_link_libraries(gui-static-vars PRIVATE ${SDL2MAIN_LIBRARY} ${SDL2_STATIC_LIBRARIES}) + target_include_directories(gui-static-vars PRIVATE ${SDL2_INCLUDE_DIRS}) + + add_executable(cli-static main_cli.c) + target_link_libraries(cli-static PRIVATE SDL2::SDL2-static) + + # SDL2_LIBRARIES does not support creating a cli SDL2 application (when SDL2::SDL2main is available) + # (it is possible that SDL2main is a stub, but we don't know for sure) + if(NOT TARGET SDL2::SDL2main) + add_executable(cli-static-vars main_cli.c) + target_link_libraries(cli-static-vars PRIVATE ${SDL2_STATIC_LIBRARIES}) + target_include_directories(cli-static-vars PRIVATE ${SDL2_INCLUDE_DIRS}) + endif() +endif() + +message(STATUS "SDL2_PREFIX: ${SDL2_PREFIX}") +message(STATUS "SDL2_INCLUDE_DIR: ${SDL2_INCLUDE_DIR}") +message(STATUS "SDL2_INCLUDE_DIRS: ${SDL2_INCLUDE_DIRS}") +message(STATUS "SDL2_LIBRARIES: ${SDL2_LIBRARIES}") +message(STATUS "SDL2_STATIC_LIBRARIES: ${SDL2_STATIC_LIBRARIES}") +message(STATUS "SDL2MAIN_LIBRARY: ${SDL2MAIN_LIBRARY}") +message(STATUS "SDL2TEST_LIBRARY: ${SDL2TEST_LIBRARY}") + +feature_summary(WHAT ALL) diff --git a/cmake/test/main_cli.c b/cmake/test/main_cli.c new file mode 100644 index 000000000..f6b083606 --- /dev/null +++ b/cmake/test/main_cli.c @@ -0,0 +1,14 @@ +#define SDL_MAIN_HANDLED +#include "SDL.h" +#include + +int main(int argc, char *argv[]) { + SDL_SetMainReady(); + if (SDL_Init(0) < 0) { + fprintf(stderr, "could not initialize sdl2: %s\n", SDL_GetError()); + return 1; + } + SDL_Delay(100); + SDL_Quit(); + return 0; +} diff --git a/cmake/test/main_gui.c b/cmake/test/main_gui.c new file mode 100644 index 000000000..4ffe9be1c --- /dev/null +++ b/cmake/test/main_gui.c @@ -0,0 +1,28 @@ +#include "SDL.h" +#include + +int main(int argc, char *argv[]) { + SDL_Window *window = NULL; + SDL_Surface *screenSurface = NULL; + if (SDL_Init(SDL_INIT_VIDEO) < 0) { + fprintf(stderr, "could not initialize sdl2: %s\n", SDL_GetError()); + return 1; + } + window = SDL_CreateWindow( + "hello_sdl2", + SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, + 640, 480, + SDL_WINDOW_SHOWN + ); + if (window == NULL) { + fprintf(stderr, "could not create window: %s\n", SDL_GetError()); + return 1; + } + screenSurface = SDL_GetWindowSurface(window); + SDL_FillRect(screenSurface, NULL, SDL_MapRGB(screenSurface->format, 0xff, 0xff, 0xff)); + SDL_UpdateWindowSurface(window); + SDL_Delay(100); + SDL_DestroyWindow(window); + SDL_Quit(); + return 0; +}