CMake: Add SDL3_mixer

Requires a not-yet-released SDL 3.4.0.

I tried implementing audio with plain SDL and it's too complicated.

3rdParty/SDL3/CMakeLists.txt

@@ -16,7 +16,7 @@ include(functions/FetchContent_ExcludeFromAll_backport)
 include(FetchContent)
 
 FetchContent_Declare(SDL3
-  URL https://github.com/libsdl-org/SDL/releases/download/release-3.2.24/SDL3-3.2.24.tar.gz
-  URL_HASH SHA256=81cc0fc17e5bf2c1754eeca9af9c47a76789ac5efdd165b3b91cbbe4b90bfb76
+  URL https://github.com/libsdl-org/SDL/archive/02c4478f9364ac9ba8c0b157c01e47c2f059552c.tar.gz
+  URL_HASH SHA256=1c8e9369ef6c67b6ca4102cc957846966815de56924b24a8a28feeac344a506a
 )
 FetchContent_MakeAvailable_ExcludeFromAll(SDL3)

3rdParty/SDL3_mixer/CMakeLists.txt

@@ -0,0 +1,33 @@
+include(functions/dependency_options)
+include(functions/FetchContent_ExcludeFromAll_backport)
+include(FetchContent)
+
+if(DEVILUTIONX_STATIC_SDL_MIXER)
+  set(BUILD_SHARED_LIBS OFF)
+else()
+  set(BUILD_SHARED_LIBS ON)
+endif()
+
+set(SDLMIXER_AIFF OFF)
+set(SDLMIXER_WAVE ON)
+set(SDLMIXER_VOC OFF)
+set(SDLMIXER_AU OFF)
+set(SDLMIXER_FLAC_LIBFLAC OFF)
+set(SDLMIXER_FLAC_DRFLAC OFF)
+set(SDLMIXER_GME OFF)
+set(SDLMIXER_MOD_XMP OFF)
+set(SDLMIXER_MP3_DRMP3 ON)
+set(SDLMIXER_MP3_MPG123 OFF)
+set(SDLMIXER_MIDI_FLUIDSYNTH OFF)
+set(SDLMIXER_MIDI_TIMIDITY OFF)
+set(SDLMIXER_OPUS OFF)
+set(SDLMIXER_VORBIS_STB OFF)
+set(SDLMIXER_VORBIS_VORBISFILE OFF)
+set(SDLMIXER_VORBIS_TREMOR OFF)
+set(SDLMIXER_WAVPACK OFF)
+
+FetchContent_Declare_ExcludeFromAll(SDL_mixer
+  URL https://github.com/libsdl-org/SDL_mixer/archive/4b4b05949208ad0a49832ed34f59beeae6d6c2da.tar.gz
+  URL_HASH SHA256=744bbe25e127121a87b070f9211794b38e71db7e6ea497757bf45ac85525a905
+)
+FetchContent_MakeAvailable_ExcludeFromAll(SDL_mixer)

CMake/Dependencies.cmake

@@ -66,7 +66,7 @@ elseif(USE_SDL1)
 elseif(USE_SDL3)
   dependency_options("SDL3" DEVILUTIONX_SYSTEM_SDL3 ON DEVILUTIONX_STATIC_SDL3)
   if(DEVILUTIONX_SYSTEM_SDL3)
-    find_package(SDL3 3.2.0 REQUIRED CONFIG REQUIRED COMPONENTS SDL3)
+    find_package(SDL3 3.4.0 REQUIRED CONFIG REQUIRED COMPONENTS SDL3)
   else()
     add_subdirectory(3rdParty/SDL3)
   endif()
@@ -195,7 +195,24 @@ else()
   add_subdirectory(3rdParty/libfmt)
 endif()
 
-if(NOT NOSOUND AND NOT USE_SDL3)
+if(NOT NOSOUND)
+  if(USE_SDL3)
+    if(NOT DEFINED DEVILUTIONX_SYSTEM_SDL_MIXER)
+      find_package(SDL3_mixer QUIET CONFIG)
+      if(SDL3_mixer_FOUND)
+        message("-- Found SDL3_mixer")
+      else()
+        message("-- Suitable system SDL3_mixer package not found, will use SDL3_mixer from source")
+        set(DEVILUTIONX_SYSTEM_SDL_MIXER OFF)
+      endif()
+    endif()
+    dependency_options("SDL3_mixer" DEVILUTIONX_SYSTEM_SDL_MIXER ON DEVILUTIONX_STATIC_SDL_MIXER)
+    if(DEVILUTIONX_SYSTEM_SDL_MIXER)
+      find_package(SDL3_mixer REQUIRED CONFIG)
+    else()
+      add_subdirectory(3rdParty/SDL3_mixer)
+    endif()
+  else()
     if(NOT DEFINED DEVILUTIONX_SYSTEM_SDL_AUDIOLIB)
       find_package(SDL_audiolib QUIET)
       if(SDL_audiolib_FOUND)
@@ -211,6 +228,7 @@ if(NOT NOSOUND AND NOT USE_SDL3)
     else()
       add_subdirectory(3rdParty/SDL_audiolib)
     endif()
+  endif()
 endif()
 
 if(PACKET_ENCRYPTION)

Source/CMakeLists.txt

@@ -747,7 +747,11 @@ else()
     engine/sound.cpp
     utils/soundsample.cpp
   )
-  if(NOT USE_SDL3)
+  if(USE_SDL3)
+    target_link_dependencies(libdevilutionx_sound PUBLIC
+      SDL3_mixer::SDL3_mixer
+    )
+  else()
     target_sources(libdevilutionx_sound PRIVATE
       utils/push_aulib_decoder.cpp)
     target_link_dependencies(libdevilutionx_sound PUBLIC

Source/diablo.cpp

@@ -9,6 +9,7 @@
 
 #ifdef USE_SDL3
 #include <SDL3/SDL_events.h>
+#include <SDL3/SDL_init.h>
 #include <SDL3/SDL_keycode.h>
 #else
 #include <SDL.h>

Source/engine/dx.cpp

@@ -11,6 +11,7 @@
 #include <SDL3/SDL_rect.h>
 #include <SDL3/SDL_render.h>
 #include <SDL3/SDL_surface.h>
+#include <SDL3/SDL_timer.h>
 #include <SDL3/SDL_video.h>
 #else
 #include <SDL.h>

Source/gamemenu.cpp

@@ -5,6 +5,10 @@
  */
 #include "gamemenu.h"
 
+#ifdef USE_SDL3
+#include <SDL3/SDL_timer.h>
+#endif
+
 #include "cursor.h"
 #include "diablo_msg.hpp"
 #include "engine/backbuffer_state.hpp"