Imported nx-X11-3.1.0-1.tar.gznx-X11/3.1.0-1

Summary: Imported nx-X11-3.1.0-1.tar.gz
Keywords:

Imported nx-X11-3.1.0-1.tar.gz
into Git repository

1 files changed, 542 insertions, 0 deletions

diff --git a/nx-X11/programs/Xserver/hw/dmx/glxProxy/glxvisuals.c b/nx-X11/programs/Xserver/hw/dmx/glxProxy/glxvisuals.c
new file mode 100644
index 000000000..c20e9551e
--- /dev/null
+++ b/nx-X11/programs/Xserver/hw/dmx/glxProxy/glxvisuals.c
@@ -0,0 +1,542 @@
+/*
+** License Applicability. Except to the extent portions of this file are
+** made subject to an alternative license as permitted in the SGI Free
+** Software License B, Version 1.1 (the "License"), the contents of this
+** file are subject only to the provisions of the License. You may not use
+** this file except in compliance with the License. You may obtain a copy
+** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
+** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
+**
+** http://oss.sgi.com/projects/FreeB
+**
+** Note that, as provided in the License, the Software is distributed on an
+** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
+** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
+** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
+** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
+**
+** Original Code. The Original Code is: OpenGL Sample Implementation,
+** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
+** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
+** Copyright in any portions created by third parties is as indicated
+** elsewhere herein. All Rights Reserved.
+**
+** Additional Notice Provisions: The application programming interfaces
+** established by SGI in conjunction with the Original Code are The
+** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
+** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
+** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
+** Window System(R) (Version 1.3), released October 19, 1998. This software
+** was created using the OpenGL(R) version 1.2.1 Sample Implementation
+** published by SGI, but has not been independently verified as being
+** compliant with the OpenGL(R) version 1.2.1 Specification.
+**
+*/
+
+#ifdef HAVE_DMX_CONFIG_H
+#include <dmx-config.h>
+#endif
+
+#include "dmx.h"
+#include "glxserver.h"
+#include "glxutil.h"
+#include "dmx_glxvisuals.h"
+
+static int                 numConfigs     = 0;
+static __GLXvisualConfig  *visualConfigs  = NULL;
+static void              **visualPrivates = NULL;
+
+int glxVisualsMatch( __GLXvisualConfig *v1, __GLXvisualConfig *v2 )
+{
+      if ( (v1->class == v2->class) &&
+           (v1->rgba == v2->rgba) &&
+	   (v1->redSize == v2->redSize) &&
+	   (v1->greenSize == v2->greenSize) &&
+	   (v1->blueSize == v2->blueSize) &&
+	   (v1->alphaSize == v2->alphaSize) &&
+	   (v1->redMask == v2->redMask) &&
+	   (v1->greenMask == v2->greenMask) &&
+	   (v1->blueMask == v2->blueMask) &&
+	   (v1->alphaMask == v2->alphaMask) &&
+	   (v1->accumRedSize == v2->accumRedSize) &&
+	   (v1->accumGreenSize == v2->accumGreenSize) &&
+	   (v1->accumBlueSize == v2->accumBlueSize) &&
+	   (v1->accumAlphaSize == v2->accumAlphaSize) &&
+	   (v1->doubleBuffer == v2->doubleBuffer) &&
+	   (v1->stereo == v2->stereo) &&
+	   (v1->bufferSize == v2->bufferSize) &&
+	   (v1->depthSize == v2->depthSize) &&
+	   (v1->stencilSize == v2->stencilSize) &&
+	   (v1->auxBuffers == v2->auxBuffers) &&
+	   (v1->level == v2->level) &&
+	   (v1->visualRating == v2->visualRating) &&
+	   (v1->transparentPixel == v2->transparentPixel) &&
+	   (v1->transparentRed == v2->transparentRed) &&
+	   (v1->transparentGreen == v2->transparentGreen) &&
+	   (v1->transparentBlue == v2->transparentBlue) &&
+	   (v1->transparentAlpha == v2->transparentAlpha) &&
+	   (v1->transparentIndex == v2->transparentIndex) &&
+	   (v1->multiSampleSize == v2->multiSampleSize) &&
+	   (v1->nMultiSampleBuffers == v2->nMultiSampleBuffers) &&
+	   (v1->visualSelectGroup == v2->visualSelectGroup)         ) {
+
+	      return(1);
+
+      }
+
+      return(0);
+
+}
+
+VisualID glxMatchGLXVisualInConfigList( __GLXvisualConfig *pGlxVisual, __GLXvisualConfig *configs, int nconfigs )
+{
+    int i;
+
+    for (i=0; i<nconfigs; i++) {
+
+       if (glxVisualsMatch( pGlxVisual, &configs[i] )) {
+
+	  return( configs[i].vid );
+
+       }
+    }
+
+    return(0);
+}
+
+VisualID glxMatchVisualInConfigList( ScreenPtr pScreen, VisualPtr pVisual, __GLXvisualConfig *configs, int nconfigs )
+{
+    __GLXscreenInfo *pGlxScreen;
+    __GLXvisualConfig *pGlxVisual;
+    int i;
+
+    /* check that the glx extension has been initialized */
+    if ( !__glXActiveScreens ) 
+       return(0);
+
+    pGlxScreen = &__glXActiveScreens[pScreen->myNum];
+    pGlxVisual = pGlxScreen->pGlxVisual;
+
+    /* find the glx visual info for pVisual */
+    for (i = 0; i < pGlxScreen->numVisuals; i++, pGlxVisual++) {
+	if (pGlxVisual->vid == pVisual->vid) {
+	    break;
+	}
+    }
+    if (i == pGlxScreen->numVisuals) {
+	/*
+	 * the visual is not supported by glx
+	 */
+        return(0);
+    }
+
+    return( glxMatchGLXVisualInConfigList(pGlxVisual, configs, nconfigs) );
+}
+
+VisualPtr glxMatchVisual( ScreenPtr pScreen, VisualPtr pVisual, ScreenPtr pMatchScreen )
+{
+    __GLXscreenInfo *pGlxScreen2;
+    int j;
+    VisualID vid;
+
+    /* check that the glx extension has been initialized */
+    if ( !__glXActiveScreens ) 
+       return NULL;
+
+    pGlxScreen2 = &__glXActiveScreens[pMatchScreen->myNum];
+
+    vid = glxMatchVisualInConfigList( pScreen, pVisual,
+                                      pGlxScreen2->pGlxVisual,
+				      pGlxScreen2->numVisuals );
+    if (vid) {
+       /*
+    	* find the X visual of the matching glx visual
+	*/
+       for (j=0; j<pMatchScreen->numVisuals; j++) {
+	  if (vid == pMatchScreen->visuals[j].vid) {
+	     return( &pMatchScreen->visuals[j] );
+	  }
+       }
+    }
+
+    return(0);
+}
+
+void glxSetVisualConfigs(int nconfigs, __GLXvisualConfig *configs,
+                 void **privates)
+{
+    numConfigs = nconfigs;
+    visualConfigs = configs;
+    visualPrivates = privates;
+}
+
+static int count_bits(unsigned int n)
+{
+   int bits = 0;
+
+   while (n > 0) {
+      if (n & 1) bits++;
+      n >>= 1;
+   }
+   return bits;
+}
+
+static VisualID FindClosestVisual( VisualPtr pVisual, int rootDepth, 
+                                   DepthPtr pdepth, int ndepths,
+				   VisualPtr pNewVisual, int numNewVisuals)
+{
+   int d, v;
+   VisualPtr vis;
+
+   /*
+    * find the first visual with the same or deeper depth
+    * of the same class.
+    */
+   for (d=0; d<ndepths; d++) {
+      if (pdepth[d].depth >= rootDepth) {
+	 for (v=0; v<pdepth[d].numVids; v++) {
+
+	    /* find the new visual structure */
+	    vis = pNewVisual;
+	    while( pdepth[d].vids[v] != vis->vid ) vis++;
+
+	    if (vis->class == pVisual->class) {
+	       return( pdepth[d].vids[v] );
+	    }
+	 }
+      }
+   }
+
+   /*
+    * did not find any.
+    * try to look for the same class only.
+    */
+   for (d=0; d<ndepths; d++) {
+      for (v=0; v<pdepth[d].numVids; v++) {
+
+	 /* find the new visual structure */
+      	 vis = pNewVisual;
+	 while( pdepth[d].vids[v] != vis->vid ) vis++;
+
+      	 if (vis->class == pVisual->class) {
+	    return( pdepth[d].vids[v] );
+	 }
+      }
+   }
+
+   /*
+    * if not found - just take the first visual
+    */
+   return( pdepth[0].vids[0] );
+}
+
+Bool glxInitVisuals(int *nvisualp, VisualPtr *visualp,
+			 VisualID *defaultVisp,
+			 int ndepth, DepthPtr pdepth,
+			 int rootDepth)
+{
+    int numRGBconfigs;
+    int numCIconfigs;
+    int numVisuals = *nvisualp;
+    int numNewVisuals;
+    int numNewConfigs;
+    VisualPtr pVisual = *visualp;
+    VisualPtr pVisualNew = NULL;
+    VisualID *orig_vid = NULL;
+    __GLXvisualConfig *glXVisualPtr = NULL;
+    __GLXvisualConfig *pNewVisualConfigs = NULL;
+    void **glXVisualPriv;
+    dmxGlxVisualPrivate **pNewVisualPriv;
+    int found_default;
+    int i, j, k;
+    int numGLXvis = 0;
+    GLint *isGLXvis;
+
+    if (numConfigs > 0)
+        numNewConfigs = numConfigs;
+    else
+        return False;
+
+    MAXSCREENSALLOC(__glXActiveScreens);
+    if (!__glXActiveScreens)
+        return False;
+
+    /* Alloc space for the list of new GLX visuals */
+    pNewVisualConfigs = (__GLXvisualConfig *)
+                     __glXMalloc(numNewConfigs * sizeof(__GLXvisualConfig));
+    if (!pNewVisualConfigs) {
+	return FALSE;
+    }
+
+    /* Alloc space for the list of new GLX visual privates */
+    pNewVisualPriv = (dmxGlxVisualPrivate **) __glXMalloc(numNewConfigs * sizeof(dmxGlxVisualPrivate *));
+    if (!pNewVisualPriv) {
+	__glXFree(pNewVisualConfigs);
+	return FALSE;
+    }
+
+    /* copy driver's visual config info */
+    for (i = 0; i < numConfigs; i++) {
+       pNewVisualConfigs[i] = visualConfigs[i];
+       pNewVisualPriv[i] = (dmxGlxVisualPrivate *)visualPrivates[i];
+    }
+
+#if 1
+    /* FIXME: This is a hack to workaround a hang in xtest caused by a
+     * mismatch between what the front end (i.e., DMX) server calculates
+     * for the visual configs and what the back-end servers have.
+     */
+    {
+	int numTCRGBconfigs = 0;
+	int numDCRGBconfigs = 0;
+
+	numRGBconfigs = 0;
+	numCIconfigs = 0;
+
+	for (i = 0; i < numNewConfigs; i++) {
+	    if (pNewVisualConfigs[i].rgba) {
+		if (pNewVisualConfigs[i].class == TrueColor)
+		    numTCRGBconfigs++;
+		else
+		    numDCRGBconfigs++;
+		numRGBconfigs++;
+	    } else
+		numCIconfigs++;
+	}
+
+	/* Count the total number of visuals to compute */
+	numNewVisuals = 0;
+	for (i = 0; i < numVisuals; i++) {
+	    numNewVisuals +=
+		(pVisual[i].class == TrueColor)   ? numTCRGBconfigs :
+		(pVisual[i].class == DirectColor) ? numDCRGBconfigs :
+						    numCIconfigs;
+	}
+    }
+#else
+    /* Count the number of RGB and CI visual configs */
+    numRGBconfigs = 0;
+    numCIconfigs = 0;
+    for (i = 0; i < numNewConfigs; i++) {
+	if (pNewVisualConfigs[i].rgba)
+	    numRGBconfigs++;
+	else
+	    numCIconfigs++;
+    }
+
+    /* Count the total number of visuals to compute */
+    numNewVisuals = 0;
+    for (i = 0; i < numVisuals; i++) {
+        numNewVisuals +=
+	    (pVisual[i].class == TrueColor || pVisual[i].class == DirectColor)
+	    ? numRGBconfigs : numCIconfigs;
+    }
+#endif
+
+    /* Reset variables for use with the next screen/driver's visual configs */
+    visualConfigs = NULL;
+    numConfigs = 0;
+
+    /* Alloc temp space for the list of orig VisualIDs for each new visual */
+    orig_vid = (VisualID *)__glXMalloc(numNewVisuals * sizeof(VisualID));
+    if (!orig_vid) {
+	__glXFree(pNewVisualPriv);
+	__glXFree(pNewVisualConfigs);
+	return FALSE;
+    }
+
+    /* Alloc space for the list of glXVisuals */
+    glXVisualPtr = (__GLXvisualConfig *)__glXMalloc(numNewVisuals *
+						    sizeof(__GLXvisualConfig));
+    if (!glXVisualPtr) {
+	__glXFree(orig_vid);
+	__glXFree(pNewVisualPriv);
+	__glXFree(pNewVisualConfigs);
+	return FALSE;
+    }
+
+    /* Alloc space for the list of glXVisualPrivates */
+    glXVisualPriv = (void **)__glXMalloc(numNewVisuals * sizeof(void *));
+    if (!glXVisualPriv) {
+	__glXFree(glXVisualPtr);
+	__glXFree(orig_vid);
+	__glXFree(pNewVisualPriv);
+	__glXFree(pNewVisualConfigs);
+	return FALSE;
+    }
+
+    /* Alloc space for the new list of the X server's visuals */
+    pVisualNew = (VisualPtr)__glXMalloc(numNewVisuals * sizeof(VisualRec));
+    if (!pVisualNew) {
+	__glXFree(glXVisualPriv);
+	__glXFree(glXVisualPtr);
+	__glXFree(orig_vid);
+	__glXFree(pNewVisualPriv);
+	__glXFree(pNewVisualConfigs);
+	return FALSE;
+    }
+
+    isGLXvis = (GLint *) __glXMalloc(numNewVisuals * sizeof(GLint));
+    if (!isGLXvis) {
+	__glXFree(glXVisualPriv);
+	__glXFree(glXVisualPtr);
+	__glXFree(orig_vid);
+	__glXFree(pNewVisualPriv);
+	__glXFree(pNewVisualConfigs);
+	__glXFree(pVisualNew);
+	return FALSE;
+    }
+
+    /* Initialize the new visuals */
+    found_default = FALSE;
+    for (i = j = 0; i < numVisuals; i++) {
+
+	for (k = 0; k < numNewConfigs; k++) {
+
+	    int new_depth;
+	    int depth;
+	    int d,v;
+
+	    /* find the depth of the new visual config */
+	    new_depth = pNewVisualPriv[k]->x_visual_depth;
+
+	    /* find the depth of the original visual */
+	    depth = 0;
+	    d = 0;
+	    while( (depth==0) && (d < ndepth) ) {
+	       v = 0;
+	       while( (depth==0) && (v < pdepth[d].numVids) ) {
+		  if (pdepth[d].vids[v] ==  pVisual[i].vid) {
+		     depth = pdepth[d].depth;
+		  }
+		  v++;
+	       }
+	       d++;
+	    }
+
+	    /* check that the visual has the same class and depth 
+	     * as the new config
+             */
+	    if ( pVisual[i].class != pNewVisualPriv[k]->x_visual_class ||
+		  (depth != new_depth) )
+		continue;
+
+	    /* Initialize the new visual */
+	    pVisualNew[j] = pVisual[i];
+	    pVisualNew[j].vid = FakeClientID(0);
+
+	    /* Check for the default visual */
+	    if (!found_default && pVisual[i].vid == *defaultVisp) {
+		*defaultVisp = pVisualNew[j].vid;
+		found_default = TRUE;
+	    }
+
+	    /* Save the old VisualID */
+	    orig_vid[j] = pVisual[i].vid;
+
+	    /* Initialize the glXVisual */
+	    glXVisualPtr[j] = pNewVisualConfigs[k];
+	    glXVisualPtr[j].vid = pVisualNew[j].vid;
+
+	    /*
+	     * If the class is -1, then assume the X visual information
+	     * is identical to what GLX needs, and take them from the X
+	     * visual.  NOTE: if class != -1, then all other fields MUST
+	     * be initialized.
+	     */
+	    if (glXVisualPtr[j].class == -1) {
+		glXVisualPtr[j].class      = pVisual[i].class;
+		glXVisualPtr[j].redSize    = count_bits(pVisual[i].redMask);
+		glXVisualPtr[j].greenSize  = count_bits(pVisual[i].greenMask);
+		glXVisualPtr[j].blueSize   = count_bits(pVisual[i].blueMask);
+		glXVisualPtr[j].alphaSize  = glXVisualPtr[j].alphaSize;
+		glXVisualPtr[j].redMask    = pVisual[i].redMask;
+		glXVisualPtr[j].greenMask  = pVisual[i].greenMask;
+		glXVisualPtr[j].blueMask   = pVisual[i].blueMask;
+		glXVisualPtr[j].alphaMask  = glXVisualPtr[j].alphaMask;
+		glXVisualPtr[j].bufferSize = rootDepth;
+	    }
+
+	    /* Save the device-dependent private for this visual */
+	    glXVisualPriv[j] = pNewVisualPriv[k];
+
+            isGLXvis[j] = glxMatchGLXVisualInConfigList( &glXVisualPtr[j], 
+	                           dmxScreens[screenInfo.numScreens-1].glxVisuals,
+	                           dmxScreens[screenInfo.numScreens-1].numGlxVisuals );
+	    if (isGLXvis[j]) numGLXvis++;
+
+	    j++;
+	}
+    }
+
+    assert(j <= numNewVisuals);
+    numNewVisuals = j;   /* correct number of new visuals */
+
+    /* Save the GLX visuals in the screen structure */
+    __glXActiveScreens[screenInfo.numScreens-1].numVisuals = numNewVisuals;
+    __glXActiveScreens[screenInfo.numScreens-1].numGLXVisuals = numGLXvis;
+    __glXActiveScreens[screenInfo.numScreens-1].isGLXvis = isGLXvis;
+    __glXActiveScreens[screenInfo.numScreens-1].pGlxVisual = glXVisualPtr;
+
+
+    /* Set up depth's VisualIDs */
+    for (i = 0; i < ndepth; i++) {
+	int numVids = 0;
+	VisualID *pVids = NULL;
+	int k, n = 0;
+
+	/* Count the new number of VisualIDs at this depth */
+	for (j = 0; j < pdepth[i].numVids; j++)
+	    for (k = 0; k < numNewVisuals; k++)
+		if (pdepth[i].vids[j] == orig_vid[k])
+		    numVids++;
+
+	/* Allocate a new list of VisualIDs for this depth */
+	pVids = (VisualID *)__glXMalloc(numVids * sizeof(VisualID));
+
+	/* Initialize the new list of VisualIDs for this depth */
+	for (j = 0; j < pdepth[i].numVids; j++)
+	    for (k = 0; k < numNewVisuals; k++)
+		if (pdepth[i].vids[j] == orig_vid[k])
+		    pVids[n++] = pVisualNew[k].vid;
+
+	/* Update this depth's list of VisualIDs */
+	__glXFree(pdepth[i].vids);
+	pdepth[i].vids = pVids;
+	pdepth[i].numVids = numVids;
+    }
+
+    /*
+     * if the default visual was rejected - need to choose new
+     * default visual !
+     */ 
+    if ( !found_default ) {
+
+       for (i=0; i<numVisuals; i++)
+	  if (pVisual[i].vid == *defaultVisp)
+	     break;
+
+       if (i < numVisuals) {
+	  *defaultVisp = FindClosestVisual( &pVisual[i], rootDepth, pdepth, ndepth, pVisualNew, numNewVisuals );
+       }
+    }
+
+    /* Update the X server's visuals */
+    *nvisualp = numNewVisuals;
+    *visualp = pVisualNew;
+
+    /* Free the old list of the X server's visuals */
+    __glXFree(pVisual);
+
+    /* Clean up temporary allocations */
+    __glXFree(orig_vid);
+    __glXFree(pNewVisualPriv);
+    __glXFree(pNewVisualConfigs);
+
+    /* Free the private list created by DDX HW driver */
+    if (visualPrivates)
+        xfree(visualPrivates);
+    visualPrivates = NULL;
+
+    return TRUE;
+}