From 3d52a86d358f5b1a4b36b80df5d659bce1f5a3a6 Mon Sep 17 00:00:00 2001
From: Holger Schemel <info@artsoft.org>
Date: Sun, 26 Jan 2003 02:08:30 +0100
Subject: [PATCH] rnd-20030126-2-src

---
 src/conftime.h       |  2 +-
 src/init.c           | 15 +++++++++++++
 src/libgame/msdos.c  |  8 +++++++
 src/libgame/msdos.h  |  2 ++
 src/libgame/sdl.c    | 53 +++++++++++++-------------------------------
 src/libgame/sdl.h    |  2 +-
 src/libgame/system.c | 13 +++++++++++
 src/libgame/system.h |  2 ++
 src/libgame/x11.c    | 15 +++++++++++++
 src/libgame/x11.h    |  3 +++
 10 files changed, 76 insertions(+), 39 deletions(-)

diff --git a/src/conftime.h b/src/conftime.h
index ec7ca768..9f661ab5 100644
--- a/src/conftime.h
+++ b/src/conftime.h
@@ -1 +1 @@
-#define COMPILE_DATE_STRING "[2003-01-26 00:14]"
+#define COMPILE_DATE_STRING "[2003-01-26 02:06]"
diff --git a/src/init.c b/src/init.c
index 448a2876..34673f37 100644
--- a/src/init.c
+++ b/src/init.c
@@ -264,6 +264,20 @@ static void ReinitializeGraphics()
 
   /* !!! TEST ONLY !!! */
 
+#if 1
+
+  {
+    Bitmap *tst_bitmap = graphic_info[IMG_SAND].bitmap;
+    Bitmap *tmp_bitmap = ZoomBitmap(tst_bitmap,
+				    tst_bitmap->width / 2,
+				    tst_bitmap->height / 2);
+
+    BlitBitmap(tmp_bitmap, tst_bitmap, 0, 0, 256, 224, 0, 448);
+
+    FreeBitmap(tmp_bitmap);
+  }
+
+#else
 #ifdef TARGET_SDL
 
   {
@@ -285,6 +299,7 @@ static void ReinitializeGraphics()
 	       0, 0, 512, 448,
 	       0, 448, 256, 224);
 
+#endif
 #endif
 }
 
diff --git a/src/libgame/msdos.c b/src/libgame/msdos.c
index 29cc0360..9cd4ddcc 100644
--- a/src/libgame/msdos.c
+++ b/src/libgame/msdos.c
@@ -917,6 +917,14 @@ Pixel AllegroGetPixel(Drawable d, int x, int y)
   return getpixel((BITMAP *)d, x, y);
 }
 
+void AllegroZoomBitmap(Drawable src, Drawable dst,
+		       int src_width, int src_height,
+		       int dst_width, int dst_height)
+{
+  stretch_blit((BITMAP *)src, (BITMAP *)dst,
+	       0, 0, src_width, src_height, 0, 0, dst_width, dst_height);
+}
+
 void MSDOSOpenAudio(void)
 {
   if (allegro_init_audio())
diff --git a/src/libgame/msdos.h b/src/libgame/msdos.h
index 5ddb3eef..e976420e 100644
--- a/src/libgame/msdos.h
+++ b/src/libgame/msdos.h
@@ -747,6 +747,8 @@ void XAutoRepeatOff(Display *);
 void AllegroDrawLine(Drawable, int, int, int, int, Pixel);
 Pixel AllegroGetPixel(Drawable, int, int);
 
+void AllegroZoomBitmap(Drawable, Drawable, int, int, int, int);
+
 void MSDOSOpenAudio(void);
 void MSDOSCloseAudio(void);
 
diff --git a/src/libgame/sdl.c b/src/libgame/sdl.c
index c6f4da02..46e41d78 100644
--- a/src/libgame/sdl.c
+++ b/src/libgame/sdl.c
@@ -829,14 +829,6 @@ void sge_LineRGB(SDL_Surface *Surface, Sint16 x1, Sint16 y1, Sint16 x2,
 /* http://www.ferzkopp.net/Software/SDL_gfx-2.0/index.html                   */
 /* ========================================================================= */
 
-typedef struct
-{
-  Uint8 r;
-  Uint8 g;
-  Uint8 b;
-  Uint8 a;
-} tColorRGBA;
-
 /*
   -----------------------------------------------------------------------------
   32 bit zoomer
@@ -845,6 +837,14 @@ typedef struct
   -----------------------------------------------------------------------------
 */
 
+typedef struct
+{
+  Uint8 r;
+  Uint8 g;
+  Uint8 b;
+  Uint8 a;
+} tColorRGBA;
+
 int zoomSurfaceRGBA(SDL_Surface *src, SDL_Surface *dst)
 {
   int x, y, sx, sy, *sax, *say, *csax, *csay, csx, csy;
@@ -1028,32 +1028,10 @@ int zoomSurfaceY(SDL_Surface * src, SDL_Surface * dst)
   -----------------------------------------------------------------------------
 */
 
-void zoomSurfaceSize(int width, int height, float zoom_x, float zoom_y,
-		     int *dst_width, int *dst_height)
-{
-  const float value_limit = 0.001;
-
-  /* sanity check zoom factors */
-  if (zoom_x < value_limit)
-    zoom_x = value_limit;
-  if (zoom_y < value_limit)
-    zoom_y = value_limit;
-
-  /* calculate target size */
-  *dst_width  = (int) ((float) width  * zoom_x);
-  *dst_height = (int) ((float) height * zoom_y);
-
-  if (*dst_width < 1)
-    *dst_width = 1;
-  if (*dst_height < 1)
-    *dst_height = 1;
-}
-
-SDL_Surface *zoomSurface(SDL_Surface *src, float zoom_x, float zoom_y)
+SDL_Surface *zoomSurface(SDL_Surface *src, int dst_width, int dst_height)
 {
   SDL_Surface *zoom_src = NULL;
   SDL_Surface *zoom_dst = NULL;
-  int dst_width, dst_height;
   boolean is_converted = FALSE;
   boolean is_32bit;
   int i;
@@ -1079,10 +1057,6 @@ SDL_Surface *zoomSurface(SDL_Surface *src, float zoom_x, float zoom_y)
     is_converted = TRUE;
   }
 
-  /* get size of destination surface */
-  zoomSurfaceSize(zoom_src->w, zoom_src->h, zoom_x, zoom_y,
-		  &dst_width, &dst_height);
-
   /* allocate surface to completely contain the zoomed surface */
   if (is_32bit)
   {
@@ -1131,9 +1105,14 @@ SDL_Surface *zoomSurface(SDL_Surface *src, float zoom_x, float zoom_y)
   return zoom_dst;
 }
 
-SDL_Surface *SDLZoomSurface(SDL_Surface *src, float zoom_x, float zoom_y)
+void SDLZoomBitmap(Bitmap *src_bitmap, Bitmap *dst_bitmap)
 {
-  return zoomSurface(src, zoom_x, zoom_y);
+  int dst_width = dst_bitmap->width;
+  int dst_height = dst_bitmap->height;
+
+  SDL_FreeSurface(dst_bitmap->surface);
+
+  dst_bitmap->surface = zoomSurface(src_bitmap->surface, dst_width,dst_height);
 }
 
 
diff --git a/src/libgame/sdl.h b/src/libgame/sdl.h
index 8d9f0941..4b4f34d3 100644
--- a/src/libgame/sdl.h
+++ b/src/libgame/sdl.h
@@ -330,7 +330,7 @@ inline void SDLDrawSimpleLine(Bitmap *, int, int, int, int, unsigned int);
 inline void SDLDrawLine(Bitmap *, int, int, int, int, Uint32);
 inline Pixel SDLGetPixel(Bitmap *, int, int);
 
-SDL_Surface *SDLZoomSurface(SDL_Surface *, float, float);
+void SDLZoomBitmap(Bitmap *, Bitmap *);
 
 Bitmap *SDLLoadImage(char *);
 
diff --git a/src/libgame/system.c b/src/libgame/system.c
index 301cb271..1fbafd78 100644
--- a/src/libgame/system.c
+++ b/src/libgame/system.c
@@ -865,6 +865,19 @@ void ReloadCustomImage(Bitmap *bitmap, char *basename)
   free(new_bitmap);
 }
 
+Bitmap *ZoomBitmap(Bitmap *src_bitmap, int zoom_width, int zoom_height)
+{
+  Bitmap *dst_bitmap = CreateBitmap(zoom_width, zoom_height, DEFAULT_DEPTH);
+
+#if defined(TARGET_SDL)
+  SDLZoomBitmap(src_bitmap, dst_bitmap);
+#else
+  X11ZoomBitmap(src_bitmap, dst_bitmap);
+#endif
+
+  return dst_bitmap;
+}
+
 
 /* ========================================================================= */
 /* audio functions                                                           */
diff --git a/src/libgame/system.h b/src/libgame/system.h
index a08edfc6..086b5afa 100644
--- a/src/libgame/system.h
+++ b/src/libgame/system.h
@@ -651,6 +651,8 @@ Bitmap *LoadImage(char *);
 Bitmap *LoadCustomImage(char *);
 void ReloadCustomImage(Bitmap *, char *);
 
+Bitmap *ZoomBitmap(Bitmap *, int, int);
+
 inline void OpenAudio(void);
 inline void CloseAudio(void);
 inline void SetAudioMode(boolean);
diff --git a/src/libgame/x11.c b/src/libgame/x11.c
index 6c2942d1..d8e51863 100644
--- a/src/libgame/x11.c
+++ b/src/libgame/x11.c
@@ -232,6 +232,21 @@ static DrawWindow *X11InitWindow()
   return new_window;
 }
 
+inline void X11NativeZoomBitmap(Bitmap *src_bitmap, Bitmap *dst_bitmap)
+{
+}
+
+void X11ZoomBitmap(Bitmap *src_bitmap, Bitmap *dst_bitmap)
+{
+#if defined(TARGET_ALLEGRO)
+  AllegroZoomBitmap(src_bitmap->drawable, dst_bitmap->drawable,
+		    src_bitmap->width, src_bitmap->height,
+		    dst_bitmap->width, dst_bitmap->height);
+#else
+  X11NativeZoomBitmap(src_bitmap, dst_bitmap);
+#endif
+}
+
 static void SetImageDimensions(Bitmap *bitmap)
 {
 #if defined(TARGET_ALLEGRO)
diff --git a/src/libgame/x11.h b/src/libgame/x11.h
index c643dc72..3db9bae3 100644
--- a/src/libgame/x11.h
+++ b/src/libgame/x11.h
@@ -304,6 +304,9 @@ struct XY
 
 inline void X11InitVideoDisplay(void);
 inline void X11InitVideoBuffer(DrawBuffer **, DrawWindow **);
+
+void X11ZoomBitmap(Bitmap *, Bitmap *);
+
 Bitmap *X11LoadImage(char *);
 
 #endif /* X11_H */
-- 
2.34.1