first part of fixes for compilation with SDL2

20 files changed, 102 insertions, 5 deletions

diff --git a/src/client.cpp b/src/client.cpp
index 5551bd312..38fc440f9 100644
--- a/src/client.cpp
+++ b/src/client.cpp
@@ -296,8 +296,13 @@ Client::Client(const Options &options) :
     mState(STATE_CHOOSE_SERVER),
     mOldState(STATE_START),
     mIcon(nullptr),
+#ifdef USE_SDL2
+    mLogicCounterId(0),
+    mSecondsCounterId(0),
+#else
     mLogicCounterId(nullptr),
     mSecondsCounterId(nullptr),
+#endif
     mCaption(),
     mFpsManager(),
     mSkin(nullptr),
@@ -452,11 +457,15 @@ void Client::gameInit()
     atexit(SDL_Quit);
 
     initPacketLimiter();
+#ifndef USE_SDL2
     SDL_EnableUNICODE(1);
+#endif
     applyKeyRepeat();
 
     // disable unused SDL events
+#ifndef USE_SDL2
     SDL_EventState(SDL_VIDEOEXPOSE, SDL_IGNORE);
+#endif
     SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
     SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
 
@@ -575,7 +584,11 @@ void Client::gameInit()
     mIcon = IMG_Load(iconFile.c_str());
     if (mIcon)
     {
+#ifdef USE_SDL2
+        SDL_SetSurfaceAlphaMod(mIcon, 255);
+#else
         SDL_SetAlpha(mIcon, SDL_SRCALPHA, SDL_ALPHA_OPAQUE);
+#endif
         SDL_WM_SetIcon(mIcon, nullptr);
     }
 #endif
@@ -2874,8 +2887,10 @@ void Client::applyVSync()
 
 void Client::applyKeyRepeat()
 {
+#ifndef USE_SDL2
     SDL_EnableKeyRepeat(config.getIntValue("repeateDelay"),
         config.getIntValue("repeateInterval"));
+#endif
 }
 
 void Client::setIsMinimized(const bool n)
diff --git a/src/compoundsprite.cpp b/src/compoundsprite.cpp
index 0d649e48e..d0bf9bc31 100644
--- a/src/compoundsprite.cpp
+++ b/src/compoundsprite.cpp
@@ -31,6 +31,7 @@
 
 #include "map.h"
 #include "sdlgraphics.h"
+#include "sdlshared.h"
 
 #include "resources/image.h"
 #include "resources/imagehelper.h"
@@ -363,7 +364,11 @@ void CompoundSprite::redraw() const
     SDL_Surface *const surfaceA = SDL_CreateRGBSurface(SDL_HWSURFACE,
         BUFFER_WIDTH, BUFFER_HEIGHT, 32, rmask, gmask, bmask, amask);
 
+#ifdef USE_SDL2
+    SDL_SetSurfaceAlphaMod(surface, 255);
+#else
     SDL_SetAlpha(surface, 0, SDL_ALPHA_OPAQUE);
+#endif
     SDL_BlitSurface(surface, nullptr, surfaceA, nullptr);
 
     delete mImage;
diff --git a/src/defaults.cpp b/src/defaults.cpp
index b9a522bff..2aa3e8ad5 100644
--- a/src/defaults.cpp
+++ b/src/defaults.cpp
@@ -271,9 +271,11 @@ DefaultsData* getConfigDefaults()
 #endif
     AddDEF("audioFrequency", 22010);
     AddDEF("audioChannels", 2);
+#ifndef USE_SDL2
     AddDEF("repeateDelay", SDL_DEFAULT_REPEAT_DELAY);
     AddDEF("repeateInterval", SDL_DEFAULT_REPEAT_INTERVAL);
     AddDEF("repeateInterval2", SDL_DEFAULT_REPEAT_DELAY);
+#endif
     AddDEF("compresstextures", 0);
     AddDEF("rectangulartextures", true);
     AddDEF("networksleep", 0);
diff --git a/src/graphics.cpp b/src/graphics.cpp
index 0b4e9be15..51c2c4a24 100644
--- a/src/graphics.cpp
+++ b/src/graphics.cpp
@@ -106,6 +106,11 @@ void Graphics::setMainFlags(const int w, const int h, const int bpp,
 int Graphics::getOpenGLFlags() const
 {
 #ifdef USE_OPENGL
+#ifdef USE_SDL2
+    int displayFlags = SDL_WINDOW_OPENGL;
+    if (mFullscreen)
+        displayFlags |= SDL_WINDOW_FULLSCREEN;
+#else
     int displayFlags = SDL_ANYFORMAT | SDL_OPENGL;
 
     if (mFullscreen)
@@ -126,6 +131,7 @@ int Graphics::getOpenGLFlags() const
         displayFlags |= SDL_NOFRAME;
 
     return displayFlags;
+#endif
 #else
     return 0;
 #endif
@@ -193,6 +199,12 @@ bool Graphics::setOpenGLMode()
 
 int Graphics::getSoftwareFlags() const
 {
+#ifdef USE_SDL2
+    int displayFlags = 0;
+
+    if (mFullscreen)
+        displayFlags |= SDL_FULLSCREEN;
+#else
     int displayFlags = SDL_ANYFORMAT;
 
     if (mFullscreen)
@@ -207,7 +219,7 @@ int Graphics::getSoftwareFlags() const
 
     if (mNoFrame)
         displayFlags |= SDL_NOFRAME;
-
+#endif
     return displayFlags;
 }
 
diff --git a/src/gui/gui.cpp b/src/gui/gui.cpp
index 2a838069b..8d96cfde3 100644
--- a/src/gui/gui.cpp
+++ b/src/gui/gui.cpp
@@ -437,8 +437,13 @@ void Gui::draw()
     int mouseX, mouseY;
     const uint8_t button = SDL_GetMouseState(&mouseX, &mouseY);
 
+#ifdef USE_SDL2
+    if (button & SDL_BUTTON(1) && mMouseCursors && mCustomCursor
+        && mMouseCursorAlpha > 0.0f)
+#else
     if ((SDL_GetAppState() & SDL_APPMOUSEFOCUS || button & SDL_BUTTON(1))
         && mMouseCursors && mCustomCursor && mMouseCursorAlpha > 0.0f)
+#endif
     {
         Graphics *g2 = static_cast<Graphics*>(mGraphics);
         const Image *const image = dragDrop.getItemImage();
diff --git a/src/gui/sdlfont.cpp b/src/gui/sdlfont.cpp
index 2e974f6d8..b1e0092d7 100644
--- a/src/gui/sdlfont.cpp
+++ b/src/gui/sdlfont.cpp
@@ -137,7 +137,11 @@ void SDLTextChunk::generate(TTF_Font *const font, const float alpha)
     sdlCol.b = static_cast<uint8_t>(color.b);
     sdlCol.r = static_cast<uint8_t>(color.r);
     sdlCol.g = static_cast<uint8_t>(color.g);
+#ifdef USE_SDL2
+    sdlCol.a = 0;
+#else
     sdlCol.unused = 0;
+#endif
 
     getSafeUtf8String(text, strBuf);
 
@@ -170,7 +174,11 @@ void SDLTextChunk::generate(TTF_Font *const font, const float alpha)
         sdlCol2.b = static_cast<uint8_t>(color2.b);
         sdlCol2.r = static_cast<uint8_t>(color2.r);
         sdlCol2.g = static_cast<uint8_t>(color2.g);
+#ifdef USE_SDL2
+        sdlCol2.a = 0;
+#else
         sdlCol2.unused = 0;
+#endif
         SDL_Surface *const surface2 = TTF_RenderUTF8_Blended(
             font, strBuf, sdlCol2);
         if (!surface2)
diff --git a/src/gui/viewport.cpp b/src/gui/viewport.cpp
index 34a24e2aa..fe5238e41 100644
--- a/src/gui/viewport.cpp
+++ b/src/gui/viewport.cpp
@@ -31,6 +31,7 @@
 #include "keyboardconfig.h"
 #include "localplayer.h"
 #include "playerinfo.h"
+#include "sdlshared.h"
 #include "textmanager.h"
 
 #include "gui/beingpopup.h"
diff --git a/src/gui/whoisonline.cpp b/src/gui/whoisonline.cpp
index 741e1e771..7036ac7d0 100644
--- a/src/gui/whoisonline.cpp
+++ b/src/gui/whoisonline.cpp
@@ -581,7 +581,12 @@ void WhoIsOnline::download()
             SDL_WaitThread(mThread, nullptr);
 
         mDownloadComplete = false;
+#ifdef USE_SDL2
+        mThread = SDL_CreateThread(WhoIsOnline::downloadThread,
+            "whoisonline", this);
+#else
         mThread = SDL_CreateThread(WhoIsOnline::downloadThread, this);
+#endif
 
         if (mThread == nullptr)
             mDownloadStatus = UPDATE_ERROR;
diff --git a/src/keyboardconfig.h b/src/keyboardconfig.h
index 569ae95b5..0dbf19453 100644
--- a/src/keyboardconfig.h
+++ b/src/keyboardconfig.h
@@ -27,6 +27,7 @@
 #include <SDL_keyboard.h>
 
 #include "inputevent.h"
+#include "sdlshared.h"
 
 #include <map>
 #include <string>
diff --git a/src/net/download.cpp b/src/net/download.cpp
index a8f0e1c0c..f469a3258 100644
--- a/src/net/download.cpp
+++ b/src/net/download.cpp
@@ -169,7 +169,11 @@ bool Download::start()
 {
     logger->log("Starting download: %s", mUrl.c_str());
 
+#ifdef USE_SDL2
+    mThread = SDL_CreateThread(downloadThread, "download", this);
+#else
     mThread = SDL_CreateThread(downloadThread, this);
+#endif
 
     if (!mThread)
     {
diff --git a/src/net/ea/network.cpp b/src/net/ea/network.cpp
index 5214cf7e4..3bcda3db3 100644
--- a/src/net/ea/network.cpp
+++ b/src/net/ea/network.cpp
@@ -114,7 +114,11 @@ bool Network::connect(ServerInfo server)
     mToSkip = 0;
 
     mState = CONNECTING;
+#ifdef USE_SDL2
+    mWorkerThread = SDL_CreateThread(networkThread, "network", this);
+#else
     mWorkerThread = SDL_CreateThread(networkThread, this);
+#endif
     if (!mWorkerThread)
     {
         setError("Unable to create network worker thread");
diff --git a/src/net/sdltcpnet.cpp b/src/net/sdltcpnet.cpp
index 7b0d2700f..cb6d6145e 100644
--- a/src/net/sdltcpnet.cpp
+++ b/src/net/sdltcpnet.cpp
@@ -75,7 +75,7 @@ int TcpNet::send(const TcpNet::Socket sock, const void *const data,
     return SDLNet_TCP_Send(sock, data, len);
 }
 
-char *TcpNet::getError()
+const char *TcpNet::getError()
 {
     return SDLNet_GetError();
 }
diff --git a/src/net/sdltcpnet.h b/src/net/sdltcpnet.h
index 1d83b04fc..e8772b4bd 100644
--- a/src/net/sdltcpnet.h
+++ b/src/net/sdltcpnet.h
@@ -40,7 +40,7 @@ namespace TcpNet
 
     int send(const TcpNet::Socket sock, const void *const data, const int len);
 
-    char *getError();
+    const char *getError();
 
     int resolveHost(IPaddress *const address, const char *const host,
                     const Uint16 port);
diff --git a/src/resources/atlasmanager.cpp b/src/resources/atlasmanager.cpp
index 1d7147d72..1292baeb7 100644
--- a/src/resources/atlasmanager.cpp
+++ b/src/resources/atlasmanager.cpp
@@ -239,7 +239,11 @@ SDL_Surface *AtlasManager::createSDLAtlas(TextureAtlas *const atlas)
 
         if (image)
         {
+#ifdef USE_SDL2
+            SDL_SetSurfaceAlphaMod(image->mSDLSurface, 255);
+#else
             SDL_SetAlpha(image->mSDLSurface, 0, SDL_ALPHA_OPAQUE);
+#endif
             graphics->drawImage(image, item->x, item->y);
         }
     }
diff --git a/src/resources/image.cpp b/src/resources/image.cpp
index c19d92d2d..f6d80e61e 100644
--- a/src/resources/image.cpp
+++ b/src/resources/image.cpp
@@ -245,8 +245,13 @@ void Image::setAlpha(const float alpha)
         if (!mHasAlphaChannel)
         {
             // Set the alpha value this image is drawn at
+#ifdef USE_SDL2
+            SDL_SetSurfaceAlphaMod(mSDLSurface,
+                static_cast<unsigned char>(255 * mAlpha));
+#else
             SDL_SetAlpha(mSDLSurface, SDL_SRCALPHA,
-                         static_cast<unsigned char>(255 * mAlpha));
+                static_cast<unsigned char>(255 * mAlpha));
+#endif
         }
         else
         {
diff --git a/src/resources/imagehelper.cpp b/src/resources/imagehelper.cpp
index 6a4a47505..cdd1672f6 100644
--- a/src/resources/imagehelper.cpp
+++ b/src/resources/imagehelper.cpp
@@ -62,8 +62,10 @@ SDL_Surface* ImageHelper::convertTo32Bit(SDL_Surface *const tmpImage)
         return nullptr;
     SDL_PixelFormat RGBAFormat;
     RGBAFormat.palette = nullptr;
+#ifndef USE_SDL2
     RGBAFormat.colorkey = 0;
     RGBAFormat.alpha = 0;
+#endif
     RGBAFormat.BitsPerPixel = 32;
     RGBAFormat.BytesPerPixel = 4;
 #if SDL_BYTEORDER == SDL_BIG_ENDIAN
@@ -102,7 +104,9 @@ void ImageHelper::dumpSurfaceFormat(const SDL_Surface *const image) const
     {
         const SDL_PixelFormat * const format = image->format;
         logger->log("Bytes per pixel: %d", format->BytesPerPixel);
+#ifndef USE_SDL2
         logger->log("Alpha: %d", format->alpha);
+#endif
         logger->log("Loss: %02x, %02x, %02x, %02x",
             static_cast<int>(format->Rloss), static_cast<int>(format->Gloss),
             static_cast<int>(format->Bloss), static_cast<int>(format->Aloss));
diff --git a/src/resources/openglimagehelper.cpp b/src/resources/openglimagehelper.cpp
index 1180135a0..6aed74113 100644
--- a/src/resources/openglimagehelper.cpp
+++ b/src/resources/openglimagehelper.cpp
@@ -151,8 +151,12 @@ Image *OpenGLImageHelper::glLoad(SDL_Surface *tmpImage,
                     tmpImage->w, tmpImage->h);
     }
 
+#ifdef USE_SDL2
+    SDL_SetSurfaceAlphaMod(tmpImage, 255);
+#else
     // Make sure the alpha channel is not used, but copied to destination
     SDL_SetAlpha(tmpImage, 0, SDL_ALPHA_OPAQUE);
+#endif
 
     // Determine 32-bit masks based on byte order
     uint32_t rmask, gmask, bmask, amask;
diff --git a/src/resources/sdlimagehelper.cpp b/src/resources/sdlimagehelper.cpp
index ab0b0663b..8f9d8b396 100644
--- a/src/resources/sdlimagehelper.cpp
+++ b/src/resources/sdlimagehelper.cpp
@@ -51,8 +51,10 @@ Image *SDLImageHelper::load(SDL_RWops *const rw, Dye const &dye) const
     rgba.palette = nullptr;
     rgba.BitsPerPixel = 32;
     rgba.BytesPerPixel = 4;
+#ifndef USE_SDL2
     rgba.colorkey = 0;
     rgba.alpha = 255;
+#endif
 
 #if SDL_BYTEORDER == SDL_BIG_ENDIAN
     rgba.Rmask = 0x000000FF;
@@ -117,6 +119,10 @@ Image *SDLImageHelper::createTextSurface(SDL_Surface *const tmpImage,
 
     Image *img;
     bool hasAlpha = false;
+#ifdef USE_SDL2
+    uint8_t *alphaChannel = nullptr;
+    SDL_Surface *image = SDLDuplicateSurface(tmpImage);
+#else
     const int sz = tmpImage->w * tmpImage->h;
 
     // The alpha channel to be filled with alpha values
@@ -170,6 +176,7 @@ Image *SDLImageHelper::createTextSurface(SDL_Surface *const tmpImage,
         delete [] alphaChannel;
         return nullptr;
     }
+#endif
 
     img = new Image(image, hasAlpha, alphaChannel);
     img->mAlpha = alpha;
@@ -190,6 +197,10 @@ Image *SDLImageHelper::_SDLload(SDL_Surface *tmpImage) const
         return nullptr;
 
     bool hasAlpha = false;
+#ifdef USE_SDL2
+    uint8_t *alphaChannel = nullptr;
+    SDL_Surface *image = tmpImage;
+#else
     bool converted = false;
 
     if (tmpImage->format->BitsPerPixel != 32)
@@ -269,7 +280,7 @@ Image *SDLImageHelper::_SDLload(SDL_Surface *tmpImage) const
 
     if (converted)
         SDL_FreeSurface(tmpImage);
-
+#endif
     return new Image(image, hasAlpha, alphaChannel);
 }
 
diff --git a/src/resources/sdlmusic.cpp b/src/resources/sdlmusic.cpp
index 5cadbd620..5f18d30d6 100644
--- a/src/resources/sdlmusic.cpp
+++ b/src/resources/sdlmusic.cpp
@@ -39,7 +39,11 @@ SDLMusic::~SDLMusic()
 
 Resource *SDLMusic::load(SDL_RWops *const rw)
 {
+#ifdef USE_SDL2
+    if (Mix_Music *const music = Mix_LoadMUS_RW(rw, 1))
+#else
     if (Mix_Music *const music = Mix_LoadMUS_RW(rw))
+#endif
     {
         return new SDLMusic(music);
     }
diff --git a/src/utils/copynpaste.cpp b/src/utils/copynpaste.cpp
index b2d241f16..1d4297fd5 100644
--- a/src/utils/copynpaste.cpp
+++ b/src/utils/copynpaste.cpp
@@ -339,6 +339,8 @@ static char* getSelection(Display *const dpy, Window us, Atom selection)
 
 bool retrieveBuffer(std::string& text, size_t& pos)
 {
+// +++ need use SDL_GetWindowWMInfo
+#ifndef USE_SDL2
     SDL_SysWMinfo info;
 
     SDL_VERSION(&info.version);
@@ -376,6 +378,7 @@ bool retrieveBuffer(std::string& text, size_t& pos)
             return true;
         }
     }
+#endif
     return false;
 }