mirror of https://github.com/encounter/SDL.git
cmake: Add mini-SDL2 CMake project to test SDL2 prefixes
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# This cmake build script is meant for verifying the various CMake configuration script.
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cmake_minimum_required(VERSION 3.12)
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project(sdl_test LANGUAGES C)
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cmake_policy(SET CMP0074 NEW)
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# Override CMAKE_FIND_ROOT_PATH_MODE to allow search for SDL2 outside of sysroot
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set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE NEVER)
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include(FeatureSummary)
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option(TEST_SHARED "Test linking to shared SDL2 library" ON)
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add_feature_info("TEST_SHARED" TEST_SHARED "Test linking with shared library")
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option(TEST_STATIC "Test linking to static SDL2 libary" ON)
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add_feature_info("TEST_STATIC" TEST_STATIC "Test linking with static library")
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if(TEST_SHARED)
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find_package(SDL2 REQUIRED CONFIG COMPONENTS SDL2)
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if(EMSCRIPTEN OR (WIN32 AND NOT WINDOWS_STORE))
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find_package(SDL2 REQUIRED CONFIG COMPONENTS SDL2main)
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endif()
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add_executable(gui-shared WIN32 main_gui.c)
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if(TARGET SDL2::SDL2main)
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target_link_libraries(gui-shared PRIVATE SDL2::SDL2main)
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endif()
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target_link_libraries(gui-shared PRIVATE SDL2::SDL2)
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if(WIN32)
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add_custom_command(TARGET gui-shared POST_BUILD
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COMMAND ${CMAKE_COMMAND} -E copy_if_different "$<TARGET_FILE:SDL2::SDL2>" "$<TARGET_FILE_DIR:gui-shared>"
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)
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endif()
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add_executable(gui-shared-vars WIN32 main_gui.c)
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target_link_libraries(gui-shared-vars PRIVATE ${SDL2_LIBRARIES})
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target_include_directories(gui-shared-vars PRIVATE ${SDL2_INCLUDE_DIRS})
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add_executable(cli-shared main_cli.c)
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target_link_libraries(cli-shared PRIVATE SDL2::SDL2)
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if(WIN32)
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add_custom_command(TARGET cli-shared POST_BUILD
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COMMAND ${CMAKE_COMMAND} -E copy_if_different "$<TARGET_FILE:SDL2::SDL2>" "$<TARGET_FILE_DIR:cli-shared>"
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)
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endif()
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# SDL2_LIBRARIES does not support creating a cli SDL2 application
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# (it is possible that SDL2main is a stub, but we don't know for sure)
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if(NOT TARGET SDL2::SDL2main)
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add_executable(cli-shared-vars main_cli.c)
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target_link_libraries(cli-shared-vars PRIVATE ${SDL2_LIBRARIES})
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target_include_directories(cli-shared-vars PRIVATE ${SDL2_INCLUDE_DIRS})
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endif()
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endif()
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if(TEST_STATIC)
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find_package(SDL2 REQUIRED CONFIG COMPONENTS SDL2-static)
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if(EMSCRIPTEN OR (WIN32 AND NOT WINDOWS_STORE))
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find_package(SDL2 REQUIRED CONFIG COMPONENTS SDL2main)
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endif()
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add_executable(gui-static WIN32 main_gui.c)
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if(TARGET SDL2::SDL2main)
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target_link_libraries(gui-static PRIVATE SDL2::SDL2main)
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endif()
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target_link_libraries(gui-static PRIVATE SDL2::SDL2-static)
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add_executable(gui-static-vars WIN32 main_gui.c)
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target_link_libraries(gui-static-vars PRIVATE ${SDL2MAIN_LIBRARY} ${SDL2_STATIC_LIBRARIES})
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target_include_directories(gui-static-vars PRIVATE ${SDL2_INCLUDE_DIRS})
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add_executable(cli-static main_cli.c)
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target_link_libraries(cli-static PRIVATE SDL2::SDL2-static)
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# SDL2_LIBRARIES does not support creating a cli SDL2 application (when SDL2::SDL2main is available)
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# (it is possible that SDL2main is a stub, but we don't know for sure)
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if(NOT TARGET SDL2::SDL2main)
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add_executable(cli-static-vars main_cli.c)
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target_link_libraries(cli-static-vars PRIVATE ${SDL2_STATIC_LIBRARIES})
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target_include_directories(cli-static-vars PRIVATE ${SDL2_INCLUDE_DIRS})
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endif()
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endif()
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message(STATUS "SDL2_PREFIX: ${SDL2_PREFIX}")
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message(STATUS "SDL2_INCLUDE_DIR: ${SDL2_INCLUDE_DIR}")
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message(STATUS "SDL2_INCLUDE_DIRS: ${SDL2_INCLUDE_DIRS}")
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message(STATUS "SDL2_LIBRARIES: ${SDL2_LIBRARIES}")
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message(STATUS "SDL2_STATIC_LIBRARIES: ${SDL2_STATIC_LIBRARIES}")
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message(STATUS "SDL2MAIN_LIBRARY: ${SDL2MAIN_LIBRARY}")
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message(STATUS "SDL2TEST_LIBRARY: ${SDL2TEST_LIBRARY}")
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feature_summary(WHAT ALL)
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@ -0,0 +1,14 @@
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#define SDL_MAIN_HANDLED
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#include "SDL.h"
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#include <stdio.h>
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int main(int argc, char *argv[]) {
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SDL_SetMainReady();
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if (SDL_Init(0) < 0) {
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fprintf(stderr, "could not initialize sdl2: %s\n", SDL_GetError());
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return 1;
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}
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SDL_Delay(100);
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SDL_Quit();
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return 0;
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}
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#include "SDL.h"
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#include <stdio.h>
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int main(int argc, char *argv[]) {
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SDL_Window *window = NULL;
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SDL_Surface *screenSurface = NULL;
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if (SDL_Init(SDL_INIT_VIDEO) < 0) {
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fprintf(stderr, "could not initialize sdl2: %s\n", SDL_GetError());
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return 1;
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}
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window = SDL_CreateWindow(
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"hello_sdl2",
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SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED,
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640, 480,
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SDL_WINDOW_SHOWN
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);
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if (window == NULL) {
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fprintf(stderr, "could not create window: %s\n", SDL_GetError());
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return 1;
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}
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screenSurface = SDL_GetWindowSurface(window);
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SDL_FillRect(screenSurface, NULL, SDL_MapRGB(screenSurface->format, 0xff, 0xff, 0xff));
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SDL_UpdateWindowSurface(window);
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SDL_Delay(100);
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SDL_DestroyWindow(window);
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SDL_Quit();
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return 0;
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}
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