rnd-20030404-1-src

[rocksndiamonds.git] / src / libgame / x11.c

diff --git a/src/libgame/x11.c b/src/libgame/x11.c
index 6f14c37f54d7dc189b605b24ffc5d9152ce8e811..907b9f71f3b3470b11bde6966506a140773e2eed 100644 (file)
--- a/src/libgame/x11.c
+++ b/src/libgame/x11.c
@@ -327,4 +327,90 @@ Bitmap *X11LoadImage(char *filename)
   return new_bitmap;
 }
 
+inline void X11CreateBitmapContent(Bitmap *new_bitmap,
+                                  int width, int height, int depth)
+{
+  Pixmap pixmap;
+
+  if ((pixmap = XCreatePixmap(display, window->drawable, width, height, depth))
+      == None)
+    Error(ERR_EXIT, "cannot create pixmap");
+
+  new_bitmap->drawable = pixmap;
+
+  if (window == NULL)
+    Error(ERR_EXIT, "Window GC needed for Bitmap -- create Window first");
+
+  new_bitmap->gc = window->gc;
+
+  new_bitmap->line_gc[0] = window->line_gc[0];
+  new_bitmap->line_gc[1] = window->line_gc[1];
+}
+
+inline void X11FreeBitmapPointers(Bitmap *bitmap)
+{
+  /* The X11 version seems to have a memory leak here -- although
+     "XFreePixmap()" is called, the corresponding memory seems not
+     to be freed (according to "ps"). The SDL version apparently
+     does not have this problem. */
+
+  if (bitmap->drawable)
+    XFreePixmap(display, bitmap->drawable);
+  if (bitmap->clip_mask)
+    XFreePixmap(display, bitmap->clip_mask);
+  if (bitmap->stored_clip_gc)
+    XFreeGC(display, bitmap->stored_clip_gc);
+  /* the other GCs are only pointers to GCs used elsewhere */
+  bitmap->drawable = None;
+  bitmap->clip_mask = None;
+  bitmap->stored_clip_gc = None;
+}
+
+inline void X11CopyArea(Bitmap *src_bitmap, Bitmap *dst_bitmap,
+                       int src_x, int src_y, int width, int height,
+                       int dst_x, int dst_y, int mask_mode)
+{
+  XCopyArea(display, src_bitmap->drawable, dst_bitmap->drawable,
+           (mask_mode == BLIT_MASKED ? src_bitmap->clip_gc : dst_bitmap->gc),
+           src_x, src_y, width, height, dst_x, dst_y);
+}
+
+inline void X11FillRectangle(Bitmap *bitmap, int x, int y,
+                            int width, int height, Pixel color)
+{
+  XSetForeground(display, bitmap->gc, color);
+  XFillRectangle(display, bitmap->drawable, bitmap->gc, x, y, width, height);
+}
+
+inline Pixel X11GetPixel(Bitmap *bitmap, int x, int y)
+{
+  unsigned long pixel_value;
+  XImage *pixel_image;
+
+  pixel_image = XGetImage(display, bitmap->drawable, x, y, 1, 1,
+                         AllPlanes, ZPixmap);
+  pixel_value = XGetPixel(pixel_image, 0, 0);
+
+  XDestroyImage(pixel_image);
+
+  return pixel_value;
+}
+
+inline Pixel X11GetPixelFromRGB(unsigned int color_r, unsigned int color_g,
+                               unsigned int color_b)
+{
+  XColor xcolor;
+  Pixel pixel;
+
+  xcolor.flags = DoRed | DoGreen | DoBlue;
+  xcolor.red = (color_r << 8);
+  xcolor.green = (color_g << 8);
+  xcolor.blue = (color_b << 8);
+
+  XAllocColor(display, cmap, &xcolor);
+  pixel = xcolor.pixel;
+
+  return pixel;
+}
+
 #endif /* TARGET_X11 */