Refactored several variables out of XMesaVisual in favor of identical

fields in __GLcontextModes (the base type).  Removed the need to keep
the XMesaVisualInfo pointer when building inside the X-server.

4 files changed, 100 insertions, 63 deletions

diff --git a/src/mesa/drivers/x11/fakeglx.c b/src/mesa/drivers/x11/fakeglx.c
index a616915f1d9..063cc9c3575 100644
--- a/src/mesa/drivers/x11/fakeglx.c
+++ b/src/mesa/drivers/x11/fakeglx.c
@@ -296,7 +296,7 @@ save_glx_visual( Display *dpy, XVisualInfo *vinfo,
    for (i=0; i<NumVisuals; i++) {
       XMesaVisual v = VisualTable[i];
       if (v->display == dpy
-          && v->level == level
+          && v->mesa_visual.level == level
           && v->ximage_flag == ximageFlag
           && v->mesa_visual.rgbMode == rgbFlag
           && v->mesa_visual.doubleBufferMode == dbFlag
@@ -1559,7 +1559,7 @@ get_config( XMesaVisual xmvis, int attrib, int *value, GLboolean fbconfig )
 	 *value = xmvis->visinfo->depth;
 	 return 0;
       case GLX_LEVEL:
-	 *value = xmvis->level;
+	 *value = xmvis->mesa_visual.level;
 	 return 0;
       case GLX_RGBA:
 	 if (xmvis->mesa_visual.rgbMode) {
@@ -1623,11 +1623,11 @@ get_config( XMesaVisual xmvis, int attrib, int *value, GLboolean fbconfig )
          }
          return 0;
       case GLX_TRANSPARENT_TYPE_EXT:
-         if (xmvis->level==0) {
+         if (xmvis->mesa_visual.level==0) {
             /* normal planes */
             *value = GLX_NONE_EXT;
          }
-         else if (xmvis->level>0) {
+         else if (xmvis->mesa_visual.level>0) {
             /* overlay */
             if (xmvis->mesa_visual.rgbMode) {
                *value = GLX_TRANSPARENT_RGB_EXT;
@@ -1636,7 +1636,7 @@ get_config( XMesaVisual xmvis, int attrib, int *value, GLboolean fbconfig )
                *value = GLX_TRANSPARENT_INDEX_EXT;
             }
          }
-         else if (xmvis->level<0) {
+         else if (xmvis->mesa_visual.level<0) {
             /* underlay */
             *value = GLX_NONE_EXT;
          }
@@ -1668,8 +1668,8 @@ get_config( XMesaVisual xmvis, int attrib, int *value, GLboolean fbconfig )
        */
       case GLX_VISUAL_CAVEAT_EXT:
          /* test for zero, just in case */
-         if (xmvis->VisualCaveat > 0)
-            *value = xmvis->VisualCaveat;
+         if (xmvis->mesa_visual.visualRating > 0)
+            *value = xmvis->mesa_visual.visualRating;
          else
             *value = GLX_NONE_EXT;
          return 0;
diff --git a/src/mesa/drivers/x11/xm_api.c b/src/mesa/drivers/x11/xm_api.c
index 9a852d9e4cc..16963ab71c7 100644
--- a/src/mesa/drivers/x11/xm_api.c
+++ b/src/mesa/drivers/x11/xm_api.c
@@ -81,12 +81,10 @@
 #include "tnl/t_pipeline.h"
 #include "drivers/common/driverfuncs.h"
 
-
-#ifndef GLX_NONE_EXT
-#define GLX_NONE_EXT 0x8000
+#ifdef XFree86Server
+#include <GL/glxtokens.h>
 #endif
 
-
 /*
  * Global X driver lock
  */
@@ -273,8 +271,7 @@ static GLint gamma_adjust( GLfloat gamma, GLint value, GLint max )
 
 static int bits_per_pixel( XMesaVisual xmv )
 {
-   XMesaVisualInfo visinfo = xmv->visinfo;
-   const int depth = visinfo->nplanes;
+   const int depth = xmv->nplanes;
    int i;
    for (i = 0; i < screenInfo.numPixmapFormats; i++) {
       if (screenInfo.formats[i].depth == depth)
@@ -1200,26 +1197,25 @@ static GLboolean initialize_visual_and_buffer( int client,
        * being color indexed.  This is weird but might be useful to someone.
        */
       v->dithered_pf = v->undithered_pf = PF_Index;
-      v->index_bits = GET_VISUAL_DEPTH(v);
+      v->mesa_visual.indexBits = GET_VISUAL_DEPTH(v);
    }
    else {
       /* RGB WINDOW:
        * We support RGB rendering into almost any kind of visual.
        */
-      int xclass;
-      xclass = GET_VISUAL_CLASS(v);
-      if (xclass==TrueColor || xclass==DirectColor) {
+      const int xclass = v->mesa_visual.visualType;
+      if (xclass==GLX_TRUE_COLOR || xclass==GLX_DIRECT_COLOR) {
 	 setup_truecolor( v, b, cmap );
       }
-      else if (xclass==StaticGray && GET_VISUAL_DEPTH(v)==1) {
+      else if (xclass==GLX_STATIC_GRAY && GET_VISUAL_DEPTH(v)==1) {
 	 setup_monochrome( v, b );
       }
-      else if (xclass==GrayScale || xclass==StaticGray) {
+      else if (xclass==GLX_GRAY_SCALE || xclass==GLX_STATIC_GRAY) {
          if (!setup_grayscale( client, v, b, cmap )) {
             return GL_FALSE;
          }
       }
-      else if ((xclass==PseudoColor || xclass==StaticColor)
+      else if ((xclass==GLX_PSEUDO_COLOR || xclass==GLX_STATIC_COLOR)
                && GET_VISUAL_DEPTH(v)>=4 && GET_VISUAL_DEPTH(v)<=16) {
 	 if (!setup_dithered_color( client, v, b, cmap )) {
             return GL_FALSE;
@@ -1229,7 +1225,7 @@ static GLboolean initialize_visual_and_buffer( int client,
 	 _mesa_warning(NULL, "XMesa: RGB mode rendering not supported in given visual.");
 	 return GL_FALSE;
       }
-      v->index_bits = 0;
+      v->mesa_visual.indexBits = 0;
 
       if (_mesa_getenv("MESA_NO_DITHER")) {
 	 v->dithered_pf = v->undithered_pf;
@@ -1246,7 +1242,7 @@ static GLboolean initialize_visual_and_buffer( int client,
       _mesa_printf("X/Mesa visual = %p\n", (void *) v);
       _mesa_printf("X/Mesa dithered pf = %u\n", v->dithered_pf);
       _mesa_printf("X/Mesa undithered pf = %u\n", v->undithered_pf);
-      _mesa_printf("X/Mesa level = %d\n", v->level);
+      _mesa_printf("X/Mesa level = %d\n", v->mesa_visual.level);
       _mesa_printf("X/Mesa depth = %d\n", GET_VISUAL_DEPTH(v));
       _mesa_printf("X/Mesa bits per pixel = %d\n", v->BitsPerPixel);
    }
@@ -1410,6 +1406,34 @@ xmesa_color_to_pixel( XMesaContext xmesa, GLubyte r, GLubyte g, GLubyte b, GLuby
 }
 
 
+#define NUM_VISUAL_TYPES   6
+
+/**
+ * Convert an X visual type to a GLX visual type.
+ * 
+ * \param visualType X visual type (i.e., \c TrueColor, \c StaticGray, etc.)
+ *        to be converted.
+ * \return If \c visualType is a valid X visual type, a GLX visual type will
+ *         be returned.  Otherwise \c GLX_NONE will be returned.
+ * 
+ * \note
+ * This code was lifted directly from lib/GL/glx/glcontextmodes.c in the
+ * DRI CVS tree.
+ */
+static GLint
+xmesa_convert_from_x_visual_type( int visualType )
+{
+    static const int glx_visual_types[ NUM_VISUAL_TYPES ] = {
+	GLX_STATIC_GRAY,  GLX_GRAY_SCALE,
+	GLX_STATIC_COLOR, GLX_PSEUDO_COLOR,
+	GLX_TRUE_COLOR,   GLX_DIRECT_COLOR
+    };
+
+    return ( (unsigned) visualType < NUM_VISUAL_TYPES )
+	? glx_visual_types[ visualType ] : GLX_NONE;
+}
+
+
 /**********************************************************************/
 /*****                       Public Functions                     *****/
 /**********************************************************************/
@@ -1435,7 +1459,7 @@ xmesa_color_to_pixel( XMesaContext xmesa, GLubyte r, GLubyte g, GLubyte b, GLuby
  *         accum_alpha_size - requested bits/alpha accum values, or zero
  *         num_samples - number of samples/pixel if multisampling, or zero
  *         level - visual level, usually 0
- *         visualCaveat - ala the GLX extension, usually GLX_NONE_EXT
+ *         visualCaveat - ala the GLX extension, usually GLX_NONE
  * Return;  a new XMesaVisual or 0 if error.
  */
 XMesaVisual XMesaCreateVisual( XMesaDisplay *display,
@@ -1488,9 +1512,7 @@ XMesaVisual XMesaCreateVisual( XMesaDisplay *display,
     * the struct but we may need some of the information contained in it
     * at a later time.
     */
-#ifdef XFree86Server
-   v->visinfo = visinfo;
-#else
+#ifndef XFree86Server
    v->visinfo = (XVisualInfo *) MALLOC(sizeof(*visinfo));
    if(!v->visinfo) {
       FREE(v);
@@ -1499,19 +1521,6 @@ XMesaVisual XMesaCreateVisual( XMesaDisplay *display,
    MEMCPY(v->visinfo, visinfo, sizeof(*visinfo));
 #endif
 
-#ifdef XFree86Server
-   /* Initialize the depth of the screen */
-   {
-       PixmapFormatRec *format;
-
-       for (format = screenInfo.formats;
-	    format->depth != display->rootDepth;
-	    format++)
-	   ;
-       v->screen_depth = format->bitsPerPixel;
-   }
-#endif
-
    /* check for MESA_GAMMA environment variable */
    gamma = _mesa_getenv("MESA_GAMMA");
    if (gamma) {
@@ -1526,15 +1535,42 @@ XMesaVisual XMesaCreateVisual( XMesaDisplay *display,
    }
 
    v->ximage_flag = ximage_flag;
-   v->level = level;
-   v->VisualCaveat = visualCaveat;
+
+#ifdef XFree86Server
+   /* We could calculate these values by ourselves.  nplanes is either the sum
+    * of the red, green, and blue bits or the number index bits.
+    * ColormapEntries is either (1U << index_bits) or
+    * (1U << max(redBits, greenBits, blueBits)).
+    */
+   v->nplanes = visinfo->nplanes;
+   v->ColormapEntries = visinfo->ColormapEntries;
+
+   v->mesa_visual.redMask = visinfo->redMask;
+   v->mesa_visual.greenMask = visinfo->greenMask;
+   v->mesa_visual.blueMask = visinfo->blueMask;
+   v->mesa_visual.visualID = visinfo->vid;
+   v->mesa_visual.screen = 0; /* FIXME: What should be done here? */
+#else
+   v->mesa_visual.redMask = visinfo->red_mask;
+   v->mesa_visual.greenMask = visinfo->green_mask;
+   v->mesa_visual.blueMask = visinfo->blue_mask;
+   v->mesa_visual.visualID = visinfo->visualid;
+   v->mesa_visual.screen = visinfo->screen;
+#endif
+
+#if defined(XFree86Server) || !(defined(__cplusplus) || defined(c_plusplus))
+   v->mesa_visual.visualType = xmesa_convert_from_x_visual_type(visinfo->class);
+#else
+   v->mesa_visual.visualType = xmesa_convert_from_x_visual_type(visinfo->c_class);
+#endif
+
+   v->mesa_visual.visualRating = visualCaveat;
 
    (void) initialize_visual_and_buffer( 0, v, NULL, rgb_flag, 0, 0 );
 
    {
-      int xclass;
-      xclass = GET_VISUAL_CLASS(v);
-      if (xclass==TrueColor || xclass==DirectColor) {
+      const int xclass = v->mesa_visual.visualType;
+      if (xclass==GLX_TRUE_COLOR || xclass==GLX_DIRECT_COLOR) {
          red_bits   = bitcount(GET_REDMASK(v));
          green_bits = bitcount(GET_GREENMASK(v));
          blue_bits  = bitcount(GET_BLUEMASK(v));
@@ -1561,12 +1597,14 @@ XMesaVisual XMesaCreateVisual( XMesaDisplay *display,
                             rgb_flag, db_flag, stereo_flag,
                             red_bits, green_bits,
                             blue_bits, alpha_bits,
-                            v->index_bits,
+                            v->mesa_visual.indexBits,
                             depth_size,
                             stencil_size,
                             accum_red_size, accum_green_size,
                             accum_blue_size, accum_alpha_size,
                             0 );
+
+   v->mesa_visual.level = level;
    return v;
 }
 
@@ -1837,13 +1875,14 @@ XMesaBuffer XMesaCreateWindowBuffer( XMesaVisual v, XMesaWindow w )
 }
 
 
-/*
+/**
  * Create a new XMesaBuffer from an X pixmap.
- * Input:  v - the XMesaVisual
- *         p - the pixmap
- *         cmap - the colormap, may be 0 if using a TrueColor or DirectColor
- *                visual for the pixmap
- * Return:  new XMesaBuffer or NULL if error
+ *
+ * \param v    the XMesaVisual
+ * \param p    the pixmap
+ * \param cmap the colormap, may be 0 if using a \c GLX_TRUE_COLOR or
+ *             \c GLX_DIRECT_COLOR visual for the pixmap
+ * \returns new XMesaBuffer or NULL if error
  */
 XMesaBuffer XMesaCreatePixmapBuffer( XMesaVisual v,
 				     XMesaPixmap p, XMesaColormap cmap )
diff --git a/src/mesa/drivers/x11/xm_dd.c b/src/mesa/drivers/x11/xm_dd.c
index 9f4302b188f..68e56029d24 100644
--- a/src/mesa/drivers/x11/xm_dd.c
+++ b/src/mesa/drivers/x11/xm_dd.c
@@ -48,6 +48,9 @@
 #include "tnl/tnl.h"
 #include "tnl/t_context.h"
 
+#ifdef XFree86Server
+#include <GL/glxtokens.h>
+#endif
 
 /*
  * Return the size (width, height) of the X window for the given GLframebuffer.
@@ -214,10 +217,10 @@ color_mask(GLcontext *ctx,
            GLboolean rmask, GLboolean gmask, GLboolean bmask, GLboolean amask)
 {
    const XMesaContext xmesa = XMESA_CONTEXT(ctx);
-   int xclass = GET_VISUAL_CLASS(xmesa->xm_visual);
+   const int xclass = xmesa->xm_visual->mesa_visual.visualType;
    (void) amask;
 
-   if (xclass == TrueColor || xclass == DirectColor) {
+   if (xclass == GLX_TRUE_COLOR || xclass == GLX_DIRECT_COLOR) {
       unsigned long m;
       if (rmask && gmask && bmask) {
          m = ((unsigned long)~0L);
diff --git a/src/mesa/drivers/x11/xmesaP.h b/src/mesa/drivers/x11/xmesaP.h
index ee1f4add1a4..4a1f49799a0 100644
--- a/src/mesa/drivers/x11/xmesaP.h
+++ b/src/mesa/drivers/x11/xmesaP.h
@@ -86,17 +86,15 @@ enum pixel_format {
 struct xmesa_visual {
    GLvisual mesa_visual;	/* Device independent visual parameters */
    XMesaDisplay *display;	/* The X11 display */
-#ifdef XFree86Server
-   GLint screen_depth;		/* The depth of the screen */
-#else
+#ifndef XFree86Server
    XVisualInfo *vishandle;	/* Only used in fakeglx.c */
-#endif
    XMesaVisualInfo visinfo;	/* X's visual info (pointer to private copy) */
+#else
+   GLint ColormapEntries;
+   GLint nplanes;
+#endif
    GLint BitsPerPixel;		/* True bits per pixel for XImages */
 
-   GLint level;			/* 0=normal, 1=overlay, etc */
-   GLint VisualCaveat;          /* for GLX_EXT_visual_rating extension */
-
    GLboolean ximage_flag;	/* Use XImage for back buffer (not pixmap)? */
 
    enum pixel_format dithered_pf;  /* Pixel format when dithering */
@@ -106,9 +104,6 @@ struct xmesa_visual {
    GLfloat GreenGamma;
    GLfloat BlueGamma;
 
-   GLint rmult, gmult, bmult;	/* Range of color values */
-   GLint index_bits;		/* Bits per pixel in CI mode */
-
    /* For PF_TRUECOLOR */
    GLint rshift, gshift, bshift;/* Pixel color component shifts */
    GLubyte Kernel[16];		/* Dither kernel */