X-Git-Url: https://git.verplant.org/?a=blobdiff_plain;f=src%2Fvideo%2Fsdl_renderer.cpp;h=56cb6b89918092f339e276ab674cdbfcf1838c88;hb=d427db3e7c37d524e540511dd8cfce6e985bf32b;hp=f4bae637723fc6e025e80560b79b3206eaaf8c91;hpb=20efd7620620892d92b1c7df124c3a0c8df22a82;p=supertux.git

diff --git a/src/video/sdl_renderer.cpp b/src/video/sdl_renderer.cpp
index f4bae6377..56cb6b899 100644
--- a/src/video/sdl_renderer.cpp
+++ b/src/video/sdl_renderer.cpp
@@ -31,35 +31,148 @@
 #include "glutil.hpp"
 #include "sdl_renderer.hpp"
 #include "sdl_texture.hpp"
+#include "sdl_surface_data.hpp"
 #include "drawing_context.hpp"
 #include "drawing_request.hpp"
 #include "surface.hpp"
 #include "font.hpp"
 #include "main.hpp"
 #include "gameconfig.hpp"
+#include "log.hpp"
 #include "texture.hpp"
 #include "texture_manager.hpp"
 #include "obstack/obstackpp.hpp"
 
+namespace
+{
+  SDL_Surface *apply_alpha(SDL_Surface *src, float alpha_factor)
+  {
+    // FIXME: This is really slow
+    assert(src->format->Amask);
+    int alpha = (int) (alpha_factor * 256);
+    SDL_Surface *dst = SDL_CreateRGBSurface(src->flags, src->w, src->h, src->format->BitsPerPixel, src->format->Rmask,  src->format->Gmask, src->format->Bmask, src->format->Amask);
+    int bpp = dst->format->BytesPerPixel;
+    if(SDL_MUSTLOCK(src))
+    {
+      SDL_LockSurface(src);
+    }
+    if(SDL_MUSTLOCK(dst))
+    {
+      SDL_LockSurface(dst);
+    }
+    for(int y = 0;y < dst->h;y++) {
+      for(int x = 0;x < dst->w;x++) {
+        Uint8 *srcpixel = (Uint8 *) src->pixels + y * src->pitch + x * bpp;
+        Uint8 *dstpixel = (Uint8 *) dst->pixels + y * dst->pitch + x * bpp;
+        Uint32 mapped = 0;
+        switch(bpp) {
+          case 1:
+            mapped = *srcpixel;
+            break;
+          case 2:
+            mapped = *(Uint16 *)srcpixel;
+            break;
+          case 3:
+#if SDL_BYTEORDER == SDL_BIG_ENDIAN
+            mapped |= srcpixel[0] << 16;
+            mapped |= srcpixel[1] << 8;
+            mapped |= srcpixel[2] << 0;
+#else
+            mapped |= srcpixel[0] << 0;
+            mapped |= srcpixel[1] << 8;
+            mapped |= srcpixel[2] << 16;
+#endif
+            break;
+          case 4:
+            mapped = *(Uint32 *)srcpixel;
+            break;
+        }
+        Uint8 r, g, b, a;
+        SDL_GetRGBA(mapped, src->format, &r, &g, &b, &a);
+        mapped = SDL_MapRGBA(dst->format, r, g, b, (a * alpha) >> 8);
+        switch(bpp) {
+          case 1:
+            *dstpixel = mapped;
+            break;
+          case 2:
+            *(Uint16 *)dstpixel = mapped;
+            break;
+          case 3:
+#if SDL_BYTEORDER == SDL_BIG_ENDIAN
+            dstpixel[0] = (mapped >> 16) & 0xff;
+            dstpixel[1] = (mapped >> 8) & 0xff;
+            dstpixel[2] = (mapped >> 0) & 0xff;
+#else
+            dstpixel[0] = (mapped >> 0) & 0xff;
+            dstpixel[1] = (mapped >> 8) & 0xff;
+            dstpixel[2] = (mapped >> 16) & 0xff;
+#endif
+            break;
+          case 4:
+            *(Uint32 *)dstpixel = mapped;
+            break;
+        }
+      }
+    }
+    if(SDL_MUSTLOCK(dst))
+    {
+      SDL_UnlockSurface(dst);
+    }
+    if(SDL_MUSTLOCK(src))
+    {
+      SDL_UnlockSurface(src);
+    }
+    return dst;
+  }
+}
+
 namespace SDL
 {
   Renderer::Renderer()
   {
-    int flags = SDL_SWSURFACE;
+    ::Renderer::instance_ = this;
+
+    const SDL_VideoInfo *info = SDL_GetVideoInfo();
+    log_info << "Hardware surfaces are " << (info->hw_available ? "" : "not ") << "available." << std::endl;
+    log_info << "Hardware to hardware blits are " << (info->blit_hw ? "" : "not ") << "accelerated." << std::endl;
+    log_info << "Hardware to hardware blits with colorkey are " << (info->blit_hw_CC ? "" : "not ") << "accelerated." << std::endl;
+    log_info << "Hardware to hardware blits with alpha are " << (info->blit_hw_A ? "" : "not ") << "accelerated." << std::endl;
+    log_info << "Software to hardware blits are " << (info->blit_sw ? "" : "not ") << "accelerated." << std::endl;
+    log_info << "Software to hardware blits with colorkey are " << (info->blit_sw_CC ? "" : "not ") << "accelerated." << std::endl;
+    log_info << "Software to hardware blits with alpha are " << (info->blit_sw_A ? "" : "not ") << "accelerated." << std::endl;
+    log_info << "Color fills are " << (info->blit_fill ? "" : "not ") << "accelerated." << std::endl;
+
+    int flags = SDL_SWSURFACE | SDL_ANYFORMAT;
     if(config->use_fullscreen)
       flags |= SDL_FULLSCREEN;
-    int width = config->screenwidth;
-    int height = config->screenheight;
-    int bpp = 0;
+    
+    int width  = 800; //FIXME: config->screenwidth;
+    int height = 600; //FIXME: config->screenheight;
 
-    screen = SDL_SetVideoMode(width, height, bpp, flags);
+    screen = SDL_SetVideoMode(width, height, 0, flags);
     if(screen == 0) {
       std::stringstream msg;
       msg << "Couldn't set video mode (" << width << "x" << height
-          << "-" << bpp << "bpp): " << SDL_GetError();
+          << "): " << SDL_GetError();
       throw std::runtime_error(msg.str());
     }
 
+    numerator   = 1;
+    denominator = 1;
+    /* FIXME: 
+    float xfactor = (float) config->screenwidth / SCREEN_WIDTH;
+    float yfactor = (float) config->screenheight / SCREEN_HEIGHT;
+    if(xfactor < yfactor)
+    {
+      numerator = config->screenwidth;
+      denominator = SCREEN_WIDTH;
+    }
+    else
+    {
+      numerator = config->screenheight;
+      denominator = SCREEN_HEIGHT;
+    }
+    */
     if(texture_manager == 0)
       texture_manager = new TextureManager();
   }
@@ -73,7 +186,9 @@ namespace SDL
   {
     //FIXME: support parameters request.alpha, request.angle, request.blend
     const Surface* surface = (const Surface*) request.request_data;
-    SDL::Texture *sdltexture = dynamic_cast<Texture *>(surface->get_texture());
+    SDL::Texture *sdltexture = dynamic_cast<SDL::Texture *>(surface->get_texture());
+    SDL::SurfaceData *surface_data = reinterpret_cast<SDL::SurfaceData *>(surface->get_surface_data());
+
     DrawingEffect effect = request.drawing_effect;
     if (surface->get_flipx()) effect = HORIZONTAL_FLIP;
 
@@ -85,49 +200,52 @@ namespace SDL
       return;
     }	
 
-    int ox, oy;
-    if (effect == HORIZONTAL_FLIP)
-    {
-      ox = sdltexture->get_texture_width() - surface->get_x() - surface->get_width();
-    }
-    else
-    {
-      ox = surface->get_x();
-    }
-    if (effect == VERTICAL_FLIP)
-    {
-      oy = sdltexture->get_texture_height() - surface->get_y() - surface->get_height();
-    }
-    else
-    {
-      oy = surface->get_y();
-    }
+    SDL_Rect *src_rect = surface_data->get_src_rect(effect);
+    SDL_Rect dst_rect;
+    dst_rect.x = (int) request.pos.x * numerator / denominator;
+    dst_rect.y = (int) request.pos.y * numerator / denominator;
 
-    int numerator, denominator;
-    float xfactor = (float) config->screenwidth / SCREEN_WIDTH;
-    float yfactor = (float) config->screenheight / SCREEN_HEIGHT;
-    if(xfactor < yfactor)
-    {
-      numerator = config->screenwidth;
-      denominator = SCREEN_WIDTH;
-    }
-    else
+    Uint8 alpha = 0;
+    if(request.alpha != 1.0)
     {
-      numerator = config->screenheight;
-      denominator = SCREEN_HEIGHT;
+      if(!transform->format->Amask)
+      {
+        if(transform->flags & SDL_SRCALPHA)
+        {
+          alpha = transform->format->alpha;
+        }
+        else
+        {
+          alpha = 255;
+        }
+        SDL_SetAlpha(transform, SDL_SRCALPHA, (Uint8) (request.alpha * alpha));
+      }
+      /*else
+      {
+        transform = apply_alpha(transform, request.alpha);
+      }*/
     }
 
-    SDL_Rect srcRect;
-    srcRect.x = ox * numerator / denominator;
-    srcRect.y = oy * numerator / denominator;
-    srcRect.w = surface->get_width() * numerator / denominator;
-    srcRect.h = surface->get_height() * numerator / denominator;
+    SDL_BlitSurface(transform, src_rect, screen, &dst_rect);
 
-    SDL_Rect dstRect;
-    dstRect.x = (int) request.pos.x * numerator / denominator;
-    dstRect.y = (int) request.pos.y * numerator / denominator;
-
-    SDL_BlitSurface(transform, &srcRect, screen, &dstRect);
+    if(request.alpha != 1.0)
+    {
+      if(!transform->format->Amask)
+      {
+        if(alpha == 255)
+        {
+          SDL_SetAlpha(transform, SDL_RLEACCEL, 0);
+        }
+        else
+        {
+          SDL_SetAlpha(transform, SDL_SRCALPHA | SDL_RLEACCEL, alpha);
+        }
+      }
+      /*else
+      {
+        SDL_FreeSurface(transform);
+      }*/
+    }
   }
 
   void
@@ -137,7 +255,8 @@ namespace SDL
       = (SurfacePartRequest*) request.request_data;
 
     const Surface* surface = surfacepartrequest->surface;
-    SDL::Texture *sdltexture = dynamic_cast<Texture *>(surface->get_texture());
+    SDL::Texture *sdltexture = dynamic_cast<SDL::Texture *>(surface->get_texture());
+
     DrawingEffect effect = request.drawing_effect;
     if (surface->get_flipx()) effect = HORIZONTAL_FLIP;
 
@@ -167,31 +286,57 @@ namespace SDL
       oy = surface->get_y();
     }
 
-    int numerator, denominator;
-    float xfactor = (float) config->screenwidth / SCREEN_WIDTH;
-    float yfactor = (float) config->screenheight / SCREEN_HEIGHT;
-    if(xfactor < yfactor)
-    {
-      numerator = config->screenwidth;
-      denominator = SCREEN_WIDTH;
-    }
-    else
+    SDL_Rect src_rect;
+    src_rect.x = (ox + (int) surfacepartrequest->source.x) * numerator / denominator;
+    src_rect.y = (oy + (int) surfacepartrequest->source.y) * numerator / denominator;
+    src_rect.w = (int) surfacepartrequest->size.x * numerator / denominator;
+    src_rect.h = (int) surfacepartrequest->size.y * numerator / denominator;
+
+    SDL_Rect dst_rect;
+    dst_rect.x = (int) request.pos.x * numerator / denominator;
+    dst_rect.y = (int) request.pos.y * numerator / denominator;
+
+    Uint8 alpha = 0;
+    if(request.alpha != 1.0)
     {
-      numerator = config->screenheight;
-      denominator = SCREEN_HEIGHT;
+      if(!transform->format->Amask)
+      {
+        if(transform->flags & SDL_SRCALPHA)
+        {
+          alpha = transform->format->alpha;
+        }
+        else
+        {
+          alpha = 255;
+        }
+        SDL_SetAlpha(transform, SDL_SRCALPHA, (Uint8) (request.alpha * alpha));
+      }
+      /*else
+      {
+        transform = apply_alpha(transform, request.alpha);
+      }*/
     }
 
-    SDL_Rect srcRect;
-    srcRect.x = (ox + (int) surfacepartrequest->source.x) * numerator / denominator;
-    srcRect.y = (oy + (int) surfacepartrequest->source.y) * numerator / denominator;
-    srcRect.w = (int) surfacepartrequest->size.x * numerator / denominator;
-    srcRect.h = (int) surfacepartrequest->size.y * numerator / denominator;
-
-    SDL_Rect dstRect;
-    dstRect.x = (int) request.pos.x * numerator / denominator;
-    dstRect.y = (int) request.pos.y * numerator / denominator;
+    SDL_BlitSurface(transform, &src_rect, screen, &dst_rect);
 
-    SDL_BlitSurface(transform, &srcRect, screen, &dstRect);
+    if(request.alpha != 1.0)
+    {
+      if(!transform->format->Amask)
+      {
+        if(alpha == 255)
+        {
+          SDL_SetAlpha(transform, SDL_RLEACCEL, 0);
+        }
+        else
+        {
+          SDL_SetAlpha(transform, SDL_SRCALPHA | SDL_RLEACCEL, alpha);
+        }
+      }
+      /*else
+      {
+        SDL_FreeSurface(transform);
+      }*/
+    }
   }
 
   void
@@ -222,7 +367,7 @@ namespace SDL
         SDL_Surface *temp = SDL_CreateRGBSurface(screen->flags, rect.w, rect.h, screen->format->BitsPerPixel, screen->format->Rmask, screen->format->Gmask, screen->format->Bmask, screen->format->Amask);
 
         SDL_FillRect(temp, 0, color);
-        SDL_SetAlpha(temp, SDL_SRCALPHA, a);
+        SDL_SetAlpha(temp, SDL_SRCALPHA | SDL_RLEACCEL, a);
         SDL_BlitSurface(temp, 0, screen, &rect);
         SDL_FreeSurface(temp);
       }
@@ -230,15 +375,6 @@ namespace SDL
   }
 
   void
-  Renderer::draw_text(const DrawingRequest& request)
-  {
-    const TextRequest* textrequest = (TextRequest*) request.request_data;
-
-    textrequest->font->draw(this, textrequest->text, request.pos,
-        textrequest->alignment, request.drawing_effect, request.alpha);
-  }
-
-  void
   Renderer::draw_filled_rect(const DrawingRequest& request)
   {
     const FillRectRequest* fillrectrequest
@@ -260,20 +396,23 @@ namespace SDL
       SDL_Surface *temp = SDL_CreateRGBSurface(screen->flags, rect.w, rect.h, screen->format->BitsPerPixel, screen->format->Rmask, screen->format->Gmask, screen->format->Bmask, screen->format->Amask);
 
       SDL_FillRect(temp, 0, color);
-      SDL_SetAlpha(temp, SDL_SRCALPHA, a);
+      SDL_SetAlpha(temp, SDL_SRCALPHA | SDL_RLEACCEL, a);
       SDL_BlitSurface(temp, 0, screen, &rect);
       SDL_FreeSurface(temp);
     }
   }
 
+  void
+  Renderer::draw_inverse_ellipse(const DrawingRequest&)
+  {
+  }
+
   void 
   Renderer::do_take_screenshot()
   {
     // [Christoph] TODO: Yes, this method also takes care of the actual disk I/O. Split it?
 
-    SDL_Surface *shot_surf;
-    shot_surf = SDL_GetVideoSurface();
-    shot_surf->refcount++;
+    SDL_Surface *screen = SDL_GetVideoSurface();
 
     // save screenshot
     static const std::string writeDir = PHYSFS_getWriteDir();
@@ -289,14 +428,12 @@ namespace SDL
       std::string fileName = oss.str();
       fullFilename = writeDir + dirSep + fileName;
       if (!PHYSFS_exists(fileName.c_str())) {
-        SDL_SaveBMP(shot_surf, fullFilename.c_str());
+        SDL_SaveBMP(screen, fullFilename.c_str());
         log_debug << "Wrote screenshot to \"" << fullFilename << "\"" << std::endl;
-        SDL_FreeSurface(shot_surf);
         return;
       }
     }
     log_warning << "Did not save screenshot, because all files up to \"" << fullFilename << "\" already existed" << std::endl;
-    SDL_FreeSurface(shot_surf);
   }
 
   void
@@ -304,4 +441,10 @@ namespace SDL
   {
     SDL_Flip(screen);
   }
+
+  void
+  Renderer::resize(int, int)
+  {
+    
+  }
 }