Added DFB_VERSION_ATLEAST macro

First attempt at replacing MakeSubSurface for pre 1.2.0 ==> Scaling not yet working

--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%403499

src/video/directfb/SDL_DirectFB_events.c

@@ -48,7 +48,7 @@ static int DirectFB_TranslateButton(DFBInputDeviceButtonIdentifier button);
 static void
 DirectFB_SetContext(_THIS, SDL_WindowID id)
 {
-#if (DIRECTFB_MAJOR_VERSION >= 1)
+#if (DFB_VERSION_ATLEAST(1,0,0))
     /* FIXME: does not work on 1.0/1.2 with radeon driver
      *        the approach did work with the matrox driver
      *        This has simply no effect.

src/video/directfb/SDL_DirectFB_modes.c

@@ -335,7 +335,7 @@ DirectFB_InitModes(_THIS)
         display.current_mode = mode;
         display.driverdata = dispdata;
 
-#if (DIRECTFB_MAJOR_VERSION == 1) && (DIRECTFB_MINOR_VERSION >= 2)
+#if (DFB_VERSION_ATLEAST(1,2,0))
         dlc.flags =
             DLCONF_WIDTH | DLCONF_HEIGHT | DLCONF_PIXELFORMAT |
             DLCONF_OPTIONS;
@@ -438,7 +438,7 @@ DirectFB_SetDisplayMode(_THIS, SDL_DisplayMode * mode)
     SDL_DFB_DEBUG("Trace\n");
     config.flags &= ~fail;
     SDL_DFB_CHECKERR(data->layer->SetConfiguration(data->layer, &config));
-#if (DIRECTFB_MAJOR_VERSION == 1) && (DIRECTFB_MINOR_VERSION >= 2)
+#if (DFB_VERSION_ATLEAST(1,2,0))
     /* Need to call this twice ! */
     SDL_DFB_CHECKERR(data->layer->SetConfiguration(data->layer, &config));
 #endif

src/video/directfb/SDL_DirectFB_render.c

@@ -140,7 +140,7 @@ typedef struct
     IDirectFBPalette *palette;
     SDL_VideoDisplay *display;
     SDL_DirtyRectList dirty;
-#if (DIRECTFB_MAJOR_VERSION == 1) && (DIRECTFB_MINOR_VERSION >= 2)
+#if (DFB_VERSION_ATLEAST(1,2,0))
     DFBSurfaceRenderOptions render_options;
 #endif
 } DirectFB_TextureData;
@@ -387,7 +387,7 @@ SDLToDFBPixelFormat(Uint32 format)
     case SDL_PIXELFORMAT_INDEX4MSB:
         return DSPF_UNKNOWN;
     case SDL_PIXELFORMAT_RGB444:
-#if (DIRECTFB_MAJOR_VERSION == 1) && (DIRECTFB_MINOR_VERSION >= 2)
+#if (DFB_VERSION_ATLEAST(1,2,0))
         return DSPF_RGB444;
 #else
         return DSPF_UNKNOWN;
@@ -543,7 +543,7 @@ DirectFB_CreateTexture(SDL_Renderer * renderer, SDL_Texture * texture)
         }
 
     }
-#if (DIRECTFB_MAJOR_VERSION == 1) && (DIRECTFB_MINOR_VERSION >= 2)
+#if (DFB_VERSION_ATLEAST(1,2,0))
     data->render_options = DSRO_NONE;
 #endif
 
@@ -673,7 +673,7 @@ DirectFB_SetTextureBlendMode(SDL_Renderer * renderer, SDL_Texture * texture)
 static int
 DirectFB_SetTextureScaleMode(SDL_Renderer * renderer, SDL_Texture * texture)
 {
-#if (DIRECTFB_MAJOR_VERSION == 1) && (DIRECTFB_MINOR_VERSION >= 2)
+#if (DFB_VERSION_ATLEAST(1,2,0))
 
     DirectFB_TextureData *data = (DirectFB_TextureData *) texture->driverdata;
 
@@ -847,7 +847,7 @@ DirectFB_RenderLine(SDL_Renderer * renderer, int x1, int y1, int x2, int y2)
 
     PrepareDraw(renderer);
     /* Use antialiasing when available */
-#if (DIRECTFB_MAJOR_VERSION == 1) && (DIRECTFB_MINOR_VERSION >= 2)
+#if (DFB_VERSION_ATLEAST(1,2,0))
     SDL_DFB_CHECKERR(data->surface->SetRenderOptions(data->surface,
                                                      DSRO_ANTIALIAS));
 #endif
@@ -961,7 +961,7 @@ DirectFB_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture,
                                                          data->blitFlags
                                                          | flags));
 
-#if (DIRECTFB_MAJOR_VERSION == 1) && (DIRECTFB_MINOR_VERSION >= 2)
+#if (DFB_VERSION_ATLEAST(1,2,0))
         SDL_DFB_CHECKERR(data->surface->SetRenderOptions(data->surface,
                                                          texturedata->
                                                          render_options));

src/video/directfb/SDL_DirectFB_video.h

@@ -34,13 +34,20 @@
 #define DEBUG 0
 #define LOG_CHANNEL 	stdout
 
-#if (DIRECTFB_MAJOR_VERSION < 1)
-#error "SDL_DIRECTFB: Please compile against libdirectfb version >= 1.0.0"
-#endif
+#define DFB_VERSIONNUM(X, Y, Z)						\
+	((X)*1000 + (Y)*100 + (Z))
+
+#define DFB_COMPILEDVERSION \
+	DFB_VERSIONNUM(DIRECTFB_MAJOR_VERSION, DIRECTFB_MINOR_VERSION, DIRECTFB_MICRO_VERSION)
 
-#if (DIRECTFB_MAJOR_VERSION >= 1) && (DIRECTFB_MINOR_VERSION >= 0) && (DIRECTFB_MICRO_VERSION >= 0 )
-#define SDL_DIRECTFB_OPENGL 1
-#include <directfbgl.h>
+#define DFB_VERSION_ATLEAST(X, Y, Z) \
+	(DFB_COMPILEDVERSION >= DFB_VERSIONNUM(X, Y, Z))
+
+#if (DFB_VERSION_ATLEAST(1,0,0))
+	#define SDL_DIRECTFB_OPENGL 1
+	#include <directfbgl.h>
+#else
+	#error "SDL_DIRECTFB: Please compile against libdirectfb version >= 1.0.0"
 #endif
 
 #if SDL_DIRECTFB_OPENGL

src/video/directfb/SDL_DirectFB_window.c

@@ -420,6 +420,7 @@ DirectFB_AdjustWindowSurface(SDL_Window * window)
     }
 
     if (adjust) {
+#if DFB_VERSION_ATLEAST(1,2,0)
        SDL_DFB_CHECKERR(windata->window->ResizeSurface(windata->window,
                                                         windata->size.w,
                                                         windata->size.h));
@@ -427,6 +428,19 @@ DirectFB_AdjustWindowSurface(SDL_Window * window)
                                                           windata->
                                                           window_surface,
                                                           &windata->client));
+#else
+       /* recreate subsurface */
+       windata->surface->ReleaseSource(windata->surface);
+       windata->window_surface->ReleaseSource(windata->window_surface);
+       SDL_DFB_RELEASE(windata->surface);
+       windata->surface = NULL;
+       SDL_DFB_CHECKERR(windata->window->ResizeSurface(windata->window,
+                                                       windata->size.w,
+                                                       windata->size.h));
+       SDL_DFB_CHECKERR(windata->window_surface->
+                        GetSubSurface(windata->window_surface, &windata->client,
+                                      &windata->surface));
+#endif
        DirectFB_WM_RedrawLayout(window);
     }
   error: