From: Holger Schemel <info@artsoft.org>
Date: Sun, 26 Jan 2003 03:01:46 +0000 (+0100)
Subject: rnd-20030126-3-src
X-Git-Tag: 3.0.0^2~158
X-Git-Url: https://git.artsoft.org/?a=commitdiff_plain;h=92204d79d159df0be4bd05c4b4e4dabbcaefe805;p=rocksndiamonds.git

rnd-20030126-3-src
---

diff --git a/Makefile b/Makefile
index 03809fd4..ba491935 100644
--- a/Makefile
+++ b/Makefile
@@ -49,8 +49,8 @@ CROSS_PATH_WIN32=/usr/local/cross-tools/i386-mingw32msvc
 SRC_DIR = src
 MAKE_CMD = $(MAKE) -C $(SRC_DIR)
 
-# DEFAULT_TARGET = x11
-DEFAULT_TARGET = sdl
+DEFAULT_TARGET = x11
+# DEFAULT_TARGET = sdl
 
 all:
 	@$(MAKE_CMD) TARGET=$(DEFAULT_TARGET)
diff --git a/src/conftime.h b/src/conftime.h
index 9f661ab5..6ea5bc86 100644
--- a/src/conftime.h
+++ b/src/conftime.h
@@ -1 +1 @@
-#define COMPILE_DATE_STRING "[2003-01-26 02:06]"
+#define COMPILE_DATE_STRING "[2003-01-26 04:01]"
diff --git a/src/init.c b/src/init.c
index 34673f37..27088af6 100644
--- a/src/init.c
+++ b/src/init.c
@@ -263,9 +263,6 @@ static void ReinitializeGraphics()
 
 
   /* !!! TEST ONLY !!! */
-
-#if 1
-
   {
     Bitmap *tst_bitmap = graphic_info[IMG_SAND].bitmap;
     Bitmap *tmp_bitmap = ZoomBitmap(tst_bitmap,
@@ -276,31 +273,6 @@ static void ReinitializeGraphics()
 
     FreeBitmap(tmp_bitmap);
   }
-
-#else
-#ifdef TARGET_SDL
-
-  {
-    Bitmap tmp_bitmap;
-    SDL_Surface *dst = SDLZoomSurface(graphic_info[IMG_SAND].bitmap->surface,
-				      0.5, 0.5);
-    tmp_bitmap.surface = dst;
-
-    BlitBitmap(&tmp_bitmap, graphic_info[IMG_SAND].bitmap,
-	       0, 0, 256, 224, 0, 448);
-
-    SDL_FreeSurface(dst);
-  }
-
-#elif defined(PLATFORM_MSDOS)
-
-  stretch_blit((BITMAP *)(graphic_info[IMG_SAND].bitmap->drawable),
-	       (BITMAP *)(graphic_info[IMG_SAND].bitmap->drawable),
-	       0, 0, 512, 448,
-	       0, 448, 256, 224);
-
-#endif
-#endif
 }
 
 static void ReinitializeSounds()
diff --git a/src/libgame/image.c b/src/libgame/image.c
index 31975e04..f7bf538f 100644
--- a/src/libgame/image.c
+++ b/src/libgame/image.c
@@ -443,8 +443,8 @@ XImageInfo *Image_to_Pixmap(Display *display, int screen, Visual *visual,
   display_bits_per_pixel = bitsPerPixelAtDepth(display, screen, depth);
   display_bytes_per_pixel = (display_bits_per_pixel + 7) / 8;
 
-  ximage = XCreateImage(display, visual, depth, ZPixmap, 0,
-			NULL, image->width, image->height,
+  ximage = XCreateImage(display, visual, depth, ZPixmap,
+			0, NULL, image->width, image->height,
 			8, image->width * display_bytes_per_pixel);
   ximage->data =
     checked_malloc(image->width * image->height * display_bytes_per_pixel);
@@ -565,6 +565,62 @@ XImageInfo *Image_to_Pixmap(Display *display, int screen, Visual *visual,
   return ximageinfo;
 }
 
+/*
+  -----------------------------------------------------------------------------
+  ZoomPixmap
+
+  Important note: The scaling code currently only supports scaling down the
+  image by a power of 2 -- scaling up is currently not supported at all!
+  -----------------------------------------------------------------------------
+*/
+
+void ZoomPixmap(Display *display, GC gc, Pixmap src_pixmap, Pixmap dst_pixmap,
+		int src_width, int src_height,
+		int dst_width, int dst_height)
+{
+  XImage *src_ximage, *dst_ximage;
+  byte *src_ptr, *dst_ptr;
+  int bits_per_pixel;
+  int bytes_per_pixel;
+  int x, y, i;
+  int zoom_factor = src_width / dst_width;	/* currently very limited! */
+  int row_skip, col_skip;
+
+  /* copy source pixmap to temporary image */
+  src_ximage = XGetImage(display, src_pixmap, 0, 0,
+			 src_width, src_height, AllPlanes, ZPixmap);
+
+  bits_per_pixel = src_ximage->bits_per_pixel;
+  bytes_per_pixel = (bits_per_pixel + 7) / 8;
+
+  dst_ximage = XCreateImage(display, visual, src_ximage->depth, ZPixmap,
+			    0, NULL, dst_width, dst_height,
+			    8, dst_width * bytes_per_pixel);
+  dst_ximage->data =
+    checked_malloc(dst_width * dst_height * bytes_per_pixel);
+  dst_ximage->byte_order = src_ximage->byte_order;
+
+  src_ptr = (byte *)src_ximage->data;
+  dst_ptr = (byte *)dst_ximage->data;
+
+  col_skip = (zoom_factor - 1) * bytes_per_pixel;
+  row_skip = col_skip * src_width;
+
+  /* scale image down by scaling factor 'zoom_factor' */
+  for (y=0; y < src_height; y += zoom_factor, src_ptr += row_skip)
+    for (x=0; x < src_width; x += zoom_factor, src_ptr += col_skip)
+      for (i=0; i<bytes_per_pixel; i++)
+	*dst_ptr++ = *src_ptr++;
+
+  /* copy scaled image to destination pixmap */
+  XPutImage(display, dst_pixmap, gc, dst_ximage, 0, 0, 0, 0,
+	    MIN(src_width, dst_width), MIN(src_height, dst_height));
+
+  /* free temporary images */
+  XDestroyImage(src_ximage);
+  XDestroyImage(dst_ximage);
+}
+
 void freeXImage(Image *image, XImageInfo *ximageinfo)
 {
   if (ximageinfo->index != NULL && ximageinfo->no > 0)
diff --git a/src/libgame/image.h b/src/libgame/image.h
index 6b9e6459..d372a468 100644
--- a/src/libgame/image.h
+++ b/src/libgame/image.h
@@ -67,6 +67,9 @@ typedef struct
 Image *newImage(unsigned int, unsigned int, unsigned int);
 void freeImage(Image *);
 void freeXImage(Image *, XImageInfo *);
+
+void ZoomPixmap(Display *, GC, Pixmap, Pixmap, int, int, int, int);
+
 int Read_PCX_to_Pixmap(Display *, Window, GC, char *, Pixmap *, Pixmap *);
 
 #endif /* TARGET_X11 */
diff --git a/src/libgame/x11.c b/src/libgame/x11.c
index d8e51863..6f14c37f 100644
--- a/src/libgame/x11.c
+++ b/src/libgame/x11.c
@@ -232,10 +232,6 @@ 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)
@@ -243,7 +239,10 @@ void X11ZoomBitmap(Bitmap *src_bitmap, Bitmap *dst_bitmap)
 		    src_bitmap->width, src_bitmap->height,
 		    dst_bitmap->width, dst_bitmap->height);
 #else
-  X11NativeZoomBitmap(src_bitmap, dst_bitmap);
+  ZoomPixmap(display, src_bitmap->gc,
+	     src_bitmap->drawable, dst_bitmap->drawable,
+	     src_bitmap->width, src_bitmap->height,
+	     dst_bitmap->width, dst_bitmap->height);
 #endif
 }