improve speed in software renderer in SDL2.

now it works almost with same speed like SDL1.2

2 files changed, 5 insertions, 15 deletions

diff --git a/src/resources/sdl2softwareimagehelper.cpp b/src/resources/sdl2softwareimagehelper.cpp
index 3511b8298..7c4ff3d5d 100644
--- a/src/resources/sdl2softwareimagehelper.cpp
+++ b/src/resources/sdl2softwareimagehelper.cpp
@@ -40,7 +40,7 @@
 #include "debug.h"
 
 bool SDL2SoftwareImageHelper::mEnableAlphaCache = false;
-SDL_Renderer *SDL2SoftwareImageHelper::mRenderer = nullptr;
+SDL_PixelFormat *SDL2SoftwareImageHelper::mFormat = nullptr;
 
 Image *SDL2SoftwareImageHelper::load(SDL_RWops *const rw, Dye const &dye) const
 {
@@ -137,13 +137,7 @@ Image *SDL2SoftwareImageHelper::_SDLload(SDL_Surface *tmpImage) const
     if (!tmpImage)
         return nullptr;
 
-//    SDL_Texture *const texture = SDL_CreateTextureFromSurface(
-//        mRenderer, tmpImage);
-//    if (!texture)
-//        return nullptr;
-//    SDL_SetTextureBlendMode(texture, SDL_BLENDMODE_BLEND);
-//    return new Image(texture, tmpImage->w, tmpImage->h);
-    SDL_Surface *image = convertTo32Bit(tmpImage);
+    SDL_Surface *image = SDL_ConvertSurface(tmpImage, mFormat, 0);
     return new Image(image, false, nullptr);
 }
 
diff --git a/src/resources/sdl2softwareimagehelper.h b/src/resources/sdl2softwareimagehelper.h
index 877ae9032..907d2242e 100644
--- a/src/resources/sdl2softwareimagehelper.h
+++ b/src/resources/sdl2softwareimagehelper.h
@@ -94,19 +94,15 @@ class SDL2SoftwareImageHelper final : public ImageHelper
                                   SDL_Surface *const dst,
                                   SDL_Rect *const dstrect);
 
-#ifdef USE_SDL2
-        static void setRenderer(SDL_Renderer *const renderer)
-        { mRenderer = renderer; }
-#endif
+        static void setFormat(SDL_PixelFormat *const format)
+        { mFormat = format; }
 
     protected:
         /** SDL_Surface to SDL_Surface Image loader */
         Image *_SDLload(SDL_Surface *tmpImage) const A_WARN_UNUSED;
 
         static bool mEnableAlphaCache;
-#ifdef USE_SDL2
-        static SDL_Renderer *mRenderer;
-#endif
+        static SDL_PixelFormat *mFormat;
 };
 
 #endif  // USE_SDL2