Revert "xfree86: Remove -flippixels"

This reverts commit d1c00c859c except
hw/xfree86/common/xf86str.h that was not used by -flipPixels option.

hw/xfree86/common/xf86.h

@@ -79,6 +79,14 @@ extern _X_EXPORT Bool xf86DRI2Enabled(void);
 
 #define XF86SCRNINFO(p) xf86ScreenToScrn(p)
 
+#define XF86FLIP_PIXELS() \
+	do { \
+	    if (xf86GetFlipPixels()) { \
+		pScreen->whitePixel = (pScreen->whitePixel) ? 0 : 1; \
+		pScreen->blackPixel = (pScreen->blackPixel) ? 0 : 1; \
+	   } \
+	while (0)
+
 #define BOOLTOSTRING(b) ((b) ? "TRUE" : "FALSE")
 
 /* Compatibility functions for pre-input-thread drivers */
@@ -278,6 +286,8 @@ xf86GetWeight(void);
 extern _X_EXPORT Gamma
 xf86GetGamma(void);
 extern _X_EXPORT Bool
+xf86GetFlipPixels(void);
+extern _X_EXPORT Bool
 xf86ServerIsExiting(void);
 extern _X_EXPORT Bool
 xf86ServerIsResetting(void);

hw/xfree86/common/xf86Globals.c

@@ -188,6 +188,7 @@ int xf86FbBpp = -1;
 int xf86Depth = -1;
 rgb xf86Weight = { 0, 0, 0 };
 
+Bool xf86FlipPixels = FALSE;
 Gamma xf86Gamma = { 0.0, 0.0, 0.0 };
 
 Bool xf86AllowMouseOpenFail = FALSE;

hw/xfree86/common/xf86Helper.c

@@ -952,8 +952,14 @@ xf86SetDpi(ScrnInfoPtr pScrn, int x, int y)
 void
 xf86SetBlackWhitePixels(ScreenPtr pScreen)
 {
+    if (xf86FlipPixels) {
+        pScreen->whitePixel = 0;
+        pScreen->blackPixel = 1;
+    }
+    else {
         pScreen->whitePixel = 1;
         pScreen->blackPixel = 0;
+    }
 }
 
 /*
@@ -1394,6 +1400,12 @@ xf86GetGamma(void)
     return xf86Gamma;
 }
 
+Bool
+xf86GetFlipPixels(void)
+{
+    return xf86FlipPixels;
+}
+
 Bool
 xf86ServerIsExiting(void)
 {

hw/xfree86/common/xf86Init.c

@@ -954,6 +954,10 @@ ddxProcessArgument(int argc, char **argv, int i)
         xf86ConfigDir = argv[i + 1];
         return 2;
     }
+    if (!strcmp(argv[i], "-flipPixels")) {
+        xf86FlipPixels = TRUE;
+        return 1;
+    }
 #ifdef XF86VIDMODE
     if (!strcmp(argv[i], "-disableVidMode")) {
         xf86VidModeDisabled = TRUE;
@@ -1233,6 +1237,7 @@ ddxUseMsg(void)
     ErrorF
         ("-pointer name          specify the core pointer InputDevice name\n");
     ErrorF("-nosilk                disable Silken Mouse\n");
+    ErrorF("-flipPixels            swap default black/white Pixel values\n");
 #ifdef XF86VIDMODE
     ErrorF("-disableVidMode        disable mode adjustments with xvidtune\n");
     ErrorF

hw/xfree86/common/xf86Priv.h

@@ -69,6 +69,7 @@ extern _X_EXPORT char *xf86KeyboardName;
 extern _X_EXPORT int xf86FbBpp;
 extern _X_EXPORT int xf86Depth;
 extern _X_EXPORT rgb xf86Weight;
+extern _X_EXPORT Bool xf86FlipPixels;
 extern _X_EXPORT Gamma xf86Gamma;
 
 /* Other parameters */

hw/xfree86/doc/ddxDesign.xml

@@ -1833,6 +1833,7 @@ Some of them are:
     xf86Depth                 -depth from the command line
     xf86Weight                -weight from the command line
     xf86Gamma                 -{r,g,b,}gamma from the command line
+    xf86FlipPixels            -flippixels from the command line
     xf86ProbeOnly             -probeonly from the command line
     defaultColorVisualClass   -cc from the command line
 	</literallayout>
@@ -1893,6 +1894,17 @@ functions:
 
 	</para></blockquote>
 
+      <blockquote><para>
+	  <programlisting>
+    Bool xf86GetFlipPixels();
+	  </programlisting>
+	  <blockquote><para>
+      Returns <constant>TRUE</constant> if <option>-flippixels</option> is
+      present on the command line, and <constant>FALSE</constant> otherwise.
+	    </para></blockquote>
+
+	</para></blockquote>
+
     </sect2>
 
     <sect2>
@@ -6002,6 +6014,19 @@ strongly encouraged to improve the consistency of driver behaviour.
 
 	  </blockquote></para></blockquote>
 
+      <blockquote><para>
+	  <programlisting>
+    void xf86SetBlackWhitePixels(ScrnInfoPtr pScrn);
+	  </programlisting>
+	  <blockquote><para>
+      This functions sets the <structfield>blackPixel</structfield> and
+      <structfield>whitePixel</structfield> fields of the <structname>ScrnInfoRec</structname>
+      according to whether or not the <option>-flipPixels</option> command
+      line options is present.
+	    </para>
+
+	  </blockquote></para></blockquote>
+
       <blockquote><para>
 	  <programlisting>
     const char *xf86GetVisualName(int visual);

hw/xfree86/man/Xorg.man

@@ -171,6 +171,9 @@ bpp framebuffer rather than the (possibly default) 32 bpp framebuffer
 (or vice versa).  Legal values are 1, 8, 16, 24, 32.  Not all drivers
 support all values.
 .TP 8
+.B \-flipPixels
+Swap the default values for the black and white pixels.
+.TP 8
 .BI \-gamma " value"
 Set the gamma correction.
 .I value

hw/xfree86/vgahw/vgaHW.c

@@ -1314,8 +1314,10 @@ vgaHWInit(ScrnInfoPtr scrninfp, DisplayModePtr mode)
     if (depth == 1) {
         /* Initialise the Mono map according to which bit-plane gets used */
 
+        Bool flipPixels = xf86GetFlipPixels();
+
         for (i = 0; i < 16; i++)
-            if ((i & (1 << BIT_PLANE)) != 0)
+            if (((i & (1 << BIT_PLANE)) != 0) != flipPixels)
                 regp->Attribute[i] = WHITE_VALUE;
             else
                 regp->Attribute[i] = BLACK_VALUE;