From 484378a2138ac8777dcf66206ae7c1cde217e36f Mon Sep 17 00:00:00 2001
From: lecoanet
Date: Thu, 1 Mar 2007 09:02:45 +0000
Subject: Retrofitted the anti aliased font patch under Windows. It seems to be
 buggy with ATI cards. It has to do with the X11 porting layer, XGetImage more
 precisely.

---
 generic/Image.c | 45 +++++++++++++++++++++++++++++++++++++--------
 1 file changed, 37 insertions(+), 8 deletions(-)

(limited to 'generic')

diff --git a/generic/Image.c b/generic/Image.c
index 0c62211..b354332 100644
--- a/generic/Image.c
+++ b/generic/Image.c
@@ -1135,8 +1135,10 @@ SuckGlyphsFromServer(ZnWInfo    *wi,
 {
   Pixmap        offscreen = 0;
   XImage        *image = NULL;
+#ifdef MAC_OSX_TK
   XColor        *white, *black;
   unsigned long pixel;
+#endif
   GC            xgc = 0;
   unsigned int  height, length, pixwidth;
   unsigned int  i, j, use_max_width;
@@ -1274,16 +1276,29 @@ SuckGlyphsFromServer(ZnWInfo    *wi,
     glyphsPerGrab = (1 << 12) / (8 * maxSpanLength);
   }
   pixwidth = glyphsPerGrab * 8 * maxSpanLength;
+#ifdef MAC_OSX_TK
   offscreen = Tk_GetPixmap(wi->dpy, RootWindowOfScreen(wi->screen),
                            (int) pixwidth, (int) height, Tk_Depth(wi->win));
-  
+#else
+  offscreen = Tk_GetPixmap(wi->dpy, RootWindowOfScreen(wi->screen),
+                           (int) pixwidth, (int) height, 1);
+#endif
   xgc = XCreateGC(wi->dpy, offscreen, 0, NULL);
+#ifdef MAC_OSX_TK
   white = Tk_GetColor(wi->interp, wi->win, "white");
   black = Tk_GetColor(wi->interp, wi->win, "black");
   XSetForeground(wi->dpy, xgc, white->pixel);
   XSetBackground(wi->dpy, xgc, white->pixel);
+#else
+  XSetForeground(wi->dpy, xgc, WhitePixelOfScreen(wi->screen));
+  XSetBackground(wi->dpy, xgc, WhitePixelOfScreen(wi->screen));
+#endif
   XFillRectangle(wi->dpy, offscreen, xgc, 0, 0, pixwidth, height);
+#ifdef MAC_OSX_TK
   XSetForeground(wi->dpy, xgc, black->pixel);
+#else
+  XSetForeground(wi->dpy, xgc, BlackPixelOfScreen(wi->screen));
+#endif
   XSetFont(wi->dpy, xgc, Tk_FontId(txf->tkfont));
 
   numToGrab = 0;
@@ -1304,8 +1319,11 @@ SuckGlyphsFromServer(ZnWInfo    *wi,
     }
 
     if ((numToGrab >= glyphsPerGrab) || (i == txf->num_glyphs - 1)) {
-      image = XGetImage(wi->dpy, offscreen, 0, 0, pixwidth, height, ~0, ZPixmap);
-
+#ifdef MAC_OSX_TK
+      image = XGetImage(wi->dpy, offscreen, 0, 0, pixwidth, height, AllPlanes, ZPixmap);
+#else
+      image = XGetImage(wi->dpy, offscreen, 0, 0, pixwidth, height, 1, XYPixmap);
+#endif
       for (j = 0; j < numToGrab; j++) {
         glyph = grabList[j];
         width = txf->glyph[glyph].width;
@@ -1324,11 +1342,11 @@ SuckGlyphsFromServer(ZnWInfo    *wi,
                each pixel from the image which is not that efficient.  We
                could either do tighter packing in the pixmap or more
                efficient extraction from the image.  Oh well.  */
+#ifdef MAC_OSX_TK
             pixel = XGetPixel(image, (int) (j*maxSpanLength*8) + x, y);
-#if defined(MAC_OSX_TK) || defined(_WIN32)
             *to = 255 - (pixel & 0xFF);
 #else
-            if (pixel == black->pixel) {
+            if (XGetPixel(image, (int) (j*maxSpanLength*8) + x, y) == BlackPixelOfScreen(wi->screen)) {
               *to = 255;
             }
 #endif
@@ -1341,10 +1359,18 @@ SuckGlyphsFromServer(ZnWInfo    *wi,
       numToGrab = 0;
       /* do we need to clear the offscreen pixmap to get more? */
       if (i < txf->num_glyphs - 1) {
+#ifdef MAC_OSX_TK
         XSetForeground(wi->dpy, xgc, white->pixel);
+#else
+        XSetForeground(wi->dpy, xgc, WhitePixelOfScreen(wi->screen));
+#endif
         XFillRectangle(wi->dpy, offscreen, xgc, 0, 0,
                        8 * maxSpanLength * glyphsPerGrab, height);
+#ifdef MAC_OSX_TK
         XSetForeground(wi->dpy, xgc, black->pixel);
+#else
+        XSetForeground(wi->dpy, xgc, BlackPixelOfScreen(wi->screen));
+#endif
       }
     }
     
@@ -1352,8 +1378,10 @@ SuckGlyphsFromServer(ZnWInfo    *wi,
     i++;
   }
 
+#ifdef MAC_OSX_TK
   Tk_FreeColor(black);
   Tk_FreeColor(white);
+#endif
   XFreeGC(wi->dpy, xgc);
   Tk_FreePixmap(wi->dpy, offscreen);
   return;
@@ -1550,10 +1578,11 @@ ZnTexFontTex(ZnTexFontInfo      tfi)
     glBindTexture(GL_TEXTURE_2D, this->texobj);
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
-    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
     glGetError();
-    /*printf("Demande texture de %d x %d\n", txf->tex_width, txf->tex_height);*/
+    //printf("Demande texture de %d x %d pour %s\n",
+      //     txf->tex_width, txf->tex_height, ZnNameOfTexFont(tfi));
     glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, txf->tex_width,
                  txf->tex_height, 0, GL_ALPHA, GL_UNSIGNED_BYTE,
                  txf->teximage);
-- 
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