Vita port.

Port of https://github.com/Rinnegatamante/flycast-vita.
Credits to @bythos14 for everything concerning the dynarec implementation and page fault handler.

CMakeLists.txt

@@ -23,6 +23,16 @@ if(APPLE)
 	endif()
 endif()
 
+if (VITA)
+	if(NOT DEFINED CMAKE_TOOLCHAIN_FILE)
+		if(DEFINED ENV{VITASDK})
+			set(CMAKE_TOOLCHAIN_FILE "$ENV{VITASDK}/share/vita.toolchain.cmake" CACHE PATH "toolchain file")
+		else()
+			message(FATAL_ERROR "Please define VITASDK to point to your SDK path!")
+		endif()
+	endif()
+endif()
+
 if(LIBRETRO)
 	project(flycast_libretro)
 else()
@@ -111,7 +121,32 @@ endif()
 string(TIMESTAMP BUILD_TIMESTAMP UTC)
 configure_file("${CMAKE_CURRENT_SOURCE_DIR}/core/version.h.in" "${CMAKE_CURRENT_SOURCE_DIR}/core/version.h" @ONLY)
 
-if(NINTENDO_SWITCH)
+if(VITA)
+	include("${VITASDK}/share/vita.cmake" REQUIRED)
+
+	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -I${VITASDK}/arm-vita-eabi/include/SDL2 -Wl,-q,--wrap,memcpy,--wrap,memset,--wrap,malloc,--wrap,memalign,--wrap,free,--wrap,calloc,--wrap,realloc -O3 -DNDEBUG -fno-optimize-sibling-calls -fsigned-char -fno-short-enums -marm")
+	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -I${VITASDK}/arm-vita-eabi/include/SDL2 -Wl,-q,--wrap,malloc,--wrap,memalign,--wrap,free,--wrap,calloc,--wrap,realloc -O3 -DNDEBUG -fno-optimize-sibling-calls -fsigned-char -fno-short-enums -marm")
+
+	set(VITA_APP_NAME "Flycast")
+	set(VITA_TITLEID  "FLYCASTDC")
+	set(VITA_VPKNAME  "Flycast")
+	set(VITA_VERSION  "01.00")
+	set(VITA_MKSFOEX_FLAGS "-d ATTRIBUTE2=12")
+
+	set(USE_VULKAN OFF)
+	set(USE_GLES2 ON)
+	enable_language(ASM)
+
+	add_executable(${PROJECT_NAME} core/emulator.cpp)
+	target_compile_definitions(${PROJECT_NAME} PRIVATE EGL_NO_PLATFORM_SPECIFIC_TYPES)
+	# target_compile_definitions(${PROJECT_NAME} PRIVATE TARGET_NO_EXCEPTIONS)
+	target_compile_definitions(${PROJECT_NAME} PRIVATE VITA _GNU_SOURCE)
+	target_compile_definitions(${PROJECT_NAME} PRIVATE GLES)
+
+	# For proper fseek/ftell definition in external dependency "libchdr", doesn't impact anything else:
+	target_compile_definitions(${PROJECT_NAME} PRIVATE __PS3__)
+
+elseif(NINTENDO_SWITCH)
 	set(USE_VULKAN OFF)
 	enable_language(ASM)
 
@@ -200,9 +235,11 @@ if(WINDOWS_STORE)
 	set(USE_VULKAN OFF)
 endif()
 
-set_target_properties(${PROJECT_NAME} PROPERTIES
-	CXX_EXTENSIONS OFF
-	LINK_FLAGS_RELEASE -s)
+if(NOT VITA)
+	set_target_properties(${PROJECT_NAME} PROPERTIES
+		CXX_EXTENSIONS OFF
+		LINK_FLAGS_RELEASE -s)
+endif()
 if(MSVC)
 	target_compile_options(${PROJECT_NAME} PRIVATE /GR /GS-)
 	if(WINDOWS_STORE)
@@ -400,6 +437,9 @@ if(NOT LIBRETRO)
 		if(USE_HOST_SDL)
 			find_package(SDL2)
 		endif()
+		if(VITA)
+			set(SDL2_FOUND 1)
+		endif()
 		if(NOT SDL2_FOUND)
 			add_subdirectory(core/deps/SDL EXCLUDE_FROM_ALL)
 			set(SDL2_FOUND 1)
@@ -411,7 +451,7 @@ if(NOT LIBRETRO)
 			target_link_libraries(${PROJECT_NAME} PRIVATE SDL2::SDL2main)
 		endif()
 
-		if((APPLE OR WIN32) AND TARGET SDL2::SDL2-static)
+		if((APPLE OR WIN32 OR VITA) AND TARGET SDL2::SDL2-static)
 			target_link_libraries(${PROJECT_NAME} PRIVATE SDL2::SDL2-static)
 		elseif(TARGET SDL2::SDL2)
 			target_link_libraries(${PROJECT_NAME} PRIVATE SDL2::SDL2)
@@ -510,6 +550,10 @@ if(NINTENDO_SWITCH AND USE_GLES)
 	target_link_libraries(${PROJECT_NAME} PRIVATE PkgConfig::GLESV2)
 endif()
 
+if(VITA)
+	target_link_libraries(${PROJECT_NAME} PRIVATE vitaGL vitashark SceShaccCg_stub SceShaccCgExt taihen_stub mathneon curl ssl crypto)
+endif()
+
 if(UNIX AND NOT APPLE AND NOT ANDROID)
 	add_definitions(
 		-DFLYCAST_DATADIR="${CMAKE_INSTALL_FULL_DATADIR}/${PROJECT_NAME}/"
@@ -598,7 +642,7 @@ target_compile_definitions(nowide PRIVATE $<$<BOOL:${NINTENDO_SWITCH}>:_DEFAULT_
 target_link_libraries(${PROJECT_NAME} PRIVATE nowide::nowide)
 
 if(NOT MINIUPNP_FOUND)
-	if(NINTENDO_SWITCH)
+	if(NINTENDO_SWITCH OR VITA)
 		target_compile_definitions(${PROJECT_NAME} PRIVATE FEAT_NO_MINIUPNPC)
 	else()
 		option(UPNPC_BUILD_SHARED "Build shared library" OFF)
@@ -615,7 +659,7 @@ if(NOT MINIUPNP_FOUND)
 	endif()
 endif()
 
-if(NOT LIBZIP_FOUND OR NINTENDO_SWITCH)
+if(NOT LIBZIP_FOUND OR NINTENDO_SWITCH OR VITA)
 	option(ENABLE_COMMONCRYPTO "Enable use of CommonCrypto" OFF)
 	option(ENABLE_GNUTLS "Enable use of GnuTLS" OFF)
 	option(ENABLE_MBEDTLS "Enable use of mbed TLS" OFF)
@@ -635,6 +679,32 @@ if(NOT LIBZIP_FOUND OR NINTENDO_SWITCH)
 	target_link_libraries(${PROJECT_NAME} PRIVATE zip)
 endif()
 
+if(VITA)
+	target_link_libraries(${PROJECT_NAME} PRIVATE
+			-Wl,--whole-archive pthread -Wl,--no-whole-archive
+			stdc++
+			SDL2
+			kubridge_stub
+			ScePgf_stub
+			SceHid_stub
+			SceAppMgr_stub
+			SceAppUtil_stub
+			SceAudio_stub
+			SceAudioIn_stub
+			SceDisplay_stub
+			SceKernelDmacMgr_stub
+			SceIme_stub
+			ScePower_stub
+			SceSysmodule_stub
+			SceTouch_stub
+			SceMotion_stub
+			SceCommonDialog_stub
+			SceCtrl_stub
+			SceGxm_stub
+			SceVshBridge_stub
+	)
+endif()
+
 if(WIN32)
 	target_include_directories(${PROJECT_NAME} PRIVATE core/deps/dirent)
 endif()
@@ -1023,6 +1093,12 @@ if(WIN32)
 			core/windows/fault_handler.cpp
 			core/windows/unwind_info.cpp
 			core/windows/win_vmem.cpp)
+elseif(VITA)
+	target_sources(${PROJECT_NAME} PRIVATE
+		core/linux/common.cpp
+		core/linux/unwind_info.cpp
+		core/linux/vita_fault_handler.cpp
+		core/linux/vita_vmem.cpp)
 else()
 	target_sources(${PROJECT_NAME} PRIVATE
 			core/linux/common.cpp
@@ -1702,7 +1778,7 @@ if(NOT LIBRETRO)
 					${CMAKE_CURRENT_BINARY_DIR}/Flycast.app/Contents/Frameworks/libvulkan.dylib)
 			endif()
 		endif()
-	elseif(UNIX OR NINTENDO_SWITCH)
+	elseif(UNIX OR NINTENDO_SWITCH OR VITA)
 		if(NOT BUILD_TESTING)
 			target_sources(${PROJECT_NAME} PRIVATE
 					core/linux-dist/main.cpp)
@@ -1787,6 +1863,19 @@ if(NINTENDO_SWITCH)
 	endif()
 endif()
 
+if(VITA)
+	vita_create_self(eboot.bin ${PROJECT_NAME} UNSAFE STRIPPED NOASLR)
+	vita_create_vpk(${VITA_VPKNAME}.vpk ${VITA_TITLEID} eboot.bin
+		VERSION ${VITA_VERSION}
+		NAME ${VITA_APP_NAME}
+		FILE ${CMAKE_SOURCE_DIR}/shell/vita/icon0.png sce_sys/icon0.png
+		${CMAKE_SOURCE_DIR}/shell/vita/startup.png sce_sys/livearea/contents/startup.png
+		${CMAKE_SOURCE_DIR}/shell/vita/bg.png sce_sys/livearea/contents/bg.png
+		${CMAKE_SOURCE_DIR}/shell/vita/template.xml sce_sys/livearea/contents/template.xml
+		${VPK_INCLUDES}
+	)
+endif()
+
 if(IOS)
 	install(FILES "${CMAKE_CURRENT_BINARY_DIR}/$<CONFIG>-${CMAKE_OSX_SYSROOT}/Flycast.ipa" TYPE BIN)
 elseif(NINTENDO_SWITCH AND NOT LIBRETRO)

core/build.h

@@ -105,7 +105,7 @@
 #endif
 
 #if !defined(__ANDROID__) && !defined(TARGET_IPHONE) && !defined(TARGET_UWP) \
-	&& !defined(__SWITCH__) && !defined(LIBRETRO) && !defined(__NetBSD__) && !defined(__OpenBSD__)
+	&& !defined(__SWITCH__) && !defined(LIBRETRO) && !defined(__NetBSD__) && !defined(__OpenBSD__) && !defined(__vita__)
 #define NAOMI_MULTIBOARD
 #endif
 

core/cfg/option.cpp

@@ -26,6 +26,9 @@ namespace config {
 
 Option<bool> DynarecEnabled("Dynarec.Enabled", true);
 Option<int> Sh4Clock("Sh4Clock", 200);
+#ifdef __vita__
+Option<int> DynarecSmcChecks("Dynarec.smcChecks", 0);
+#endif
 
 // General
 
@@ -38,8 +41,13 @@ Option<bool> AutoLoadState("Dreamcast.AutoLoadState");
 Option<bool> AutoSaveState("Dreamcast.AutoSaveState");
 Option<int, false> SavestateSlot("Dreamcast.SavestateSlot");
 Option<bool> ForceFreePlay("ForceFreePlay", true);
+#ifdef __vita__
+Option<bool, false> FetchBoxart("FetchBoxart", false);
+Option<bool, false> BoxartDisplayMode("BoxartDisplayMode", false);
+#else
 Option<bool, false> FetchBoxart("FetchBoxart", true);
 Option<bool, false> BoxartDisplayMode("BoxartDisplayMode", true);
+#endif
 
 // Sound
 
@@ -81,6 +89,10 @@ Option<bool> Fog("rend.Fog", true);
 Option<bool> FloatVMUs("rend.FloatVMUs");
 Option<bool> Rotate90("rend.Rotate90");
 Option<bool> PerStripSorting("rend.PerStripSorting");
+#ifdef __vita__
+Option<bool> UseSimpleShaders("rend.UseSimpleShaders", true);
+Option<bool> FastSorting("rend.FastSorting", true);
+#endif
 #ifdef __APPLE__
 Option<bool> DelayFrameSwapping("rend.DelayFrameSwapping", false);
 #else

core/cfg/option.h

@@ -359,6 +359,11 @@ extern Option<bool> DynarecEnabled;
 #ifndef LIBRETRO
 extern Option<int> Sh4Clock;
 #endif
+#ifdef __vita__
+extern Option<int> DynarecSmcChecks;
+extern Option<bool> FastSorting;
+extern Option<bool> UseSimpleShaders;
+#endif
 
 // General
 

core/deps/ggpo/lib/ggpo/ggpo_types.h

@@ -56,7 +56,7 @@ class GGPOException : public std::runtime_error {
  */
 #if defined(_WIN32)
 #  include "platform_windows.h"
-#elif defined(__unix__) || defined(__APPLE__) || defined(__SWITCH__)
+#elif defined(__unix__) || defined(__APPLE__) || defined(__SWITCH__) || defined(__vita__)
 #  include "platform_linux.h"
 #else
 #  error Unsupported platform

core/deps/ggpo/lib/ggpo/platform_linux.cpp

@@ -4,7 +4,7 @@
  * Use of this software is governed by the MIT license that can be found
  * in the LICENSE file.
  */
-#if defined(__unix__) || defined(__APPLE__) || defined(__SWITCH__)
+#if defined(__unix__) || defined(__APPLE__) || defined(__SWITCH__) || defined(__vita__)
 
 #include "platform_linux.h"
 #include <time.h>

core/deps/ggpo/lib/ggpo/platform_linux.h

@@ -23,7 +23,7 @@
 #include <netinet/in.h>
 #ifdef __SWITCH__
 #include "nswitch.h"
-#else
+#elif !defined(__vita__)
 #include <netinet/ip.h>
 #endif
 #include <netinet/tcp.h>

core/deps/imgui/backends/imgui_impl_opengl3.cpp

@@ -90,13 +90,17 @@ bool    ImGui_ImplOpenGL3_Init()
 
     // Store GLSL version string so we can refer to it later in case we recreate shaders. Note: GLSL version is NOT the same as GL version. Leave this to NULL if unsure.
     const char* glsl_version;
+#ifdef __vita__
+	glsl_version = "";
+#else
     if (theGLContext.isGLES())
     	glsl_version = "#version 100";		// OpenGL ES 2.0
     else
 #if defined(__APPLE__)
     	glsl_version = "#version 140";		// OpenGL 3.1
 #else
     	glsl_version = "#version 130";		// OpenGL 3.0
+#endif
 #endif
     IM_ASSERT((int)strlen(glsl_version) + 2 < IM_ARRAYSIZE(g_GlslVersionString));
     strcpy(g_GlslVersionString, glsl_version);
@@ -252,8 +256,10 @@ static bool ImGui_ImplOpenGL3_CreateFontsTexture()
     glcache.BindTexture(GL_TEXTURE_2D, g_FontTexture);
     glcache.TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
     glcache.TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+#if !defined(__vita__)
     if (theGLContext.getMajorVersion() >= 3)
     	glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
+#endif
     glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
 
     // Store our identifier
@@ -313,6 +319,43 @@ static bool ImGui_ImplOpenGL3_CreateDeviceObjects()
 {
     // Parse GLSL version string
     int glsl_version = 130;
+#ifdef __vita__
+	const GLchar* vertex_shader_glsl_120 = "";
+
+    const GLchar* vertex_shader_glsl_130 =
+        "uniform float4x4 ProjMtx;\n"
+        "void main(\n"
+		"float2 Position,\n"
+		"float2 UV,\n"
+        "float4 Color,\n"
+        "float2 out Frag_UV : TEXCOORD0,\n"
+        "float4 out Frag_Color : COLOR,\n"
+		"float4 out gl_Position : 	POSITION\n"
+		") {\n"
+        "    Frag_UV = UV;\n"
+        "    Frag_Color = Color;\n"
+        "    gl_Position = mul(float4(Position.xy, 0, 1), ProjMtx);\n"
+        "}\n";
+
+    const GLchar* vertex_shader_glsl_300_es = "";
+
+    const GLchar* vertex_shader_glsl_410_core = "";
+
+    const GLchar* fragment_shader_glsl_120 = "";
+
+    const GLchar* fragment_shader_glsl_130 =
+        "uniform sampler2D tex;\n"
+        "float4 main(\n"
+		"float2 Frag_UV : TEXCOORD0,\n"
+		"float4 Frag_Color : COLOR\n"
+		") {\n"
+        "    return Frag_Color * tex2D(tex, Frag_UV);\n"
+        "}\n";
+
+    const GLchar* fragment_shader_glsl_300_es = "";
+
+    const GLchar* fragment_shader_glsl_410_core = "";
+#else
     sscanf(g_GlslVersionString, "#version %d", &glsl_version);
 
     const GLchar* vertex_shader_glsl_120 =
@@ -414,6 +457,7 @@ static bool ImGui_ImplOpenGL3_CreateDeviceObjects()
         "{\n"
         "    Out_Color = Frag_Color * texture(Texture, Frag_UV.st);\n"
         "}\n";
+#endif
 
     // Select shaders matching our GLSL versions
     const GLchar* vertex_shader = NULL;
@@ -463,7 +507,11 @@ static bool ImGui_ImplOpenGL3_CreateDeviceObjects()
     glDeleteShader(vert_handle);
     glDeleteShader(frag_handle);
 
+#ifdef __vita__
+    g_AttribLocationTex = glGetUniformLocation(g_ShaderHandle, "tex");
+#else
     g_AttribLocationTex = glGetUniformLocation(g_ShaderHandle, "Texture");
+#endif
     g_AttribLocationProjMtx = glGetUniformLocation(g_ShaderHandle, "ProjMtx");
     g_AttribLocationPosition = glGetAttribLocation(g_ShaderHandle, "Position");
     g_AttribLocationUV = glGetAttribLocation(g_ShaderHandle, "UV");