xserver randrproto mesa xkeyboard-config git update 25 Feb 2011

1 files changed, 286 insertions, 340 deletions

diff --git a/xorg-server/hw/dmx/glxProxy/render2swap.c b/xorg-server/hw/dmx/glxProxy/render2swap.c
index 34fd19624..81bb501ea 100644
--- a/xorg-server/hw/dmx/glxProxy/render2swap.c
+++ b/xorg-server/hw/dmx/glxProxy/render2swap.c
@@ -1,340 +1,286 @@
-/*

- * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)

- * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.

- *

- * Permission is hereby granted, free of charge, to any person obtaining a

- * copy of this software and associated documentation files (the "Software"),

- * to deal in the Software without restriction, including without limitation

- * the rights to use, copy, modify, merge, publish, distribute, sublicense,

- * and/or sell copies of the Software, and to permit persons to whom the

- * Software is furnished to do so, subject to the following conditions:

- *

- * The above copyright notice including the dates of first publication and

- * either this permission notice or a reference to

- * http://oss.sgi.com/projects/FreeB/

- * shall be included in all copies or substantial portions of the Software.

- *

- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL

- * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,

- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF

- * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

- * SOFTWARE.

- *

- * Except as contained in this notice, the name of Silicon Graphics, Inc.

- * shall not be used in advertising or otherwise to promote the sale, use or

- * other dealings in this Software without prior written authorization from

- * Silicon Graphics, Inc.

- */

-

-#include "glxserver.h"

-#include "unpack.h"

-#include "g_disptab.h"

-

-GLint __glEvalComputeK(GLenum target)

-{

-    switch (target) {

-    case GL_MAP1_VERTEX_4:

-    case GL_MAP1_COLOR_4:

-    case GL_MAP1_TEXTURE_COORD_4:

-    case GL_MAP2_VERTEX_4:

-    case GL_MAP2_COLOR_4:

-    case GL_MAP2_TEXTURE_COORD_4:

-	return 4;

-    case GL_MAP1_VERTEX_3:

-    case GL_MAP1_TEXTURE_COORD_3:

-    case GL_MAP1_NORMAL:

-    case GL_MAP2_VERTEX_3:

-    case GL_MAP2_TEXTURE_COORD_3:

-    case GL_MAP2_NORMAL:

-	return 3;

-    case GL_MAP1_TEXTURE_COORD_2:

-    case GL_MAP2_TEXTURE_COORD_2:

-	return 2;

-    case GL_MAP1_TEXTURE_COORD_1:

-    case GL_MAP2_TEXTURE_COORD_1:

-    case GL_MAP1_INDEX:

-    case GL_MAP2_INDEX:

-	return 1;

-    default:

-	return 0;

-    }

-}

-

-void __glXDispSwap_Map1f(GLbyte *pc)

-{

-    GLint order, k;

-    GLfloat u1, u2, *points;

-    GLenum target;

-    GLint compsize;

-    __GLX_DECLARE_SWAP_VARIABLES;

-    __GLX_DECLARE_SWAP_ARRAY_VARIABLES;

-

-    __GLX_SWAP_INT(pc + 0);

-    __GLX_SWAP_INT(pc + 12);

-    __GLX_SWAP_FLOAT(pc + 4);

-    __GLX_SWAP_FLOAT(pc + 8);

-    

-    target = *(GLenum *)(pc + 0); 

-    order = *(GLint *)(pc + 12);

-    u1 = *(GLfloat *)(pc + 4);

-    u2 = *(GLfloat *)(pc + 8);

-    points = (GLfloat *)(pc + 16);

-    k = __glEvalComputeK(target);

-

-    if (order <= 0 || k < 0) {

-	/* Erroneous command. */

-	compsize = 0;

-    } else {

-	compsize = order * k;

-    }

-    __GLX_SWAP_FLOAT_ARRAY(points, compsize);

-

-}

-

-void __glXDispSwap_Map2f(GLbyte *pc)

-{

-    GLint uorder, vorder, ustride, vstride, k;

-    GLfloat u1, u2, v1, v2, *points;

-    GLenum target;

-    GLint compsize;

-    __GLX_DECLARE_SWAP_VARIABLES;

-    __GLX_DECLARE_SWAP_ARRAY_VARIABLES;

-

-    __GLX_SWAP_INT(pc + 0);

-    __GLX_SWAP_INT(pc + 12);

-    __GLX_SWAP_INT(pc + 24);

-    __GLX_SWAP_FLOAT(pc + 4);

-    __GLX_SWAP_FLOAT(pc + 8);

-    __GLX_SWAP_FLOAT(pc + 16);

-    __GLX_SWAP_FLOAT(pc + 20);

-    

-    target = *(GLenum *)(pc + 0); 

-    uorder = *(GLint *)(pc + 12);

-    vorder = *(GLint *)(pc + 24);

-    u1 = *(GLfloat *)(pc + 4);

-    u2 = *(GLfloat *)(pc + 8);

-    v1 = *(GLfloat *)(pc + 16);

-    v2 = *(GLfloat *)(pc + 20);

-    points = (GLfloat *)(pc + 28);

-

-    k = __glEvalComputeK(target);

-    ustride = vorder * k;

-    vstride = k;

-

-    if (vorder <= 0 || uorder <= 0 || k < 0) {

-	/* Erroneous command. */

-	compsize = 0;

-    } else {

-	compsize = uorder * vorder * k;

-    }

-    __GLX_SWAP_FLOAT_ARRAY(points, compsize);

-

-}

-

-void __glXDispSwap_Map1d(GLbyte *pc)

-{

-    GLint order, k, compsize;

-    GLenum target;

-    GLdouble u1, u2, *points;

-    __GLX_DECLARE_SWAP_VARIABLES;

-    __GLX_DECLARE_SWAP_ARRAY_VARIABLES;

-

-    __GLX_SWAP_DOUBLE(pc + 0);

-    __GLX_SWAP_DOUBLE(pc + 8);

-    __GLX_SWAP_INT(pc + 16);

-    __GLX_SWAP_INT(pc + 20);

-

-    target = *(GLenum*) (pc + 16);

-    order = *(GLint*) (pc + 20);

-    k = __glEvalComputeK(target);

-    if (order <= 0 || k < 0) {

-	/* Erroneous command. */

-	compsize = 0;

-    } else {

-	compsize = order * k;

-    }

-    __GLX_GET_DOUBLE(u1,pc);

-    __GLX_GET_DOUBLE(u2,pc+8);

-    __GLX_SWAP_DOUBLE_ARRAY(pc+24, compsize);

-    pc += 24;

-

-#ifdef __GLX_ALIGN64

-    if (((unsigned long)pc) & 7) {

-	/*

-	** Copy the doubles up 4 bytes, trashing the command but aligning

-	** the data in the process

-	*/

-	__GLX_MEM_COPY(pc-4, pc, compsize*8);

-	points = (GLdouble*) (pc - 4);

-    } else {

-	points = (GLdouble*) pc;

-    }

-#else

-    points = (GLdouble*) pc;

-#endif

-}

-

-void __glXDispSwap_Map2d(GLbyte *pc)

-{

-    GLdouble u1, u2, v1, v2, *points;

-    GLint uorder, vorder, ustride, vstride, k, compsize;

-    GLenum target;

-    __GLX_DECLARE_SWAP_VARIABLES;

-    __GLX_DECLARE_SWAP_ARRAY_VARIABLES;

-

-    __GLX_SWAP_DOUBLE(pc + 0);

-    __GLX_SWAP_DOUBLE(pc + 8);

-    __GLX_SWAP_DOUBLE(pc + 16);

-    __GLX_SWAP_DOUBLE(pc + 24);

-    __GLX_SWAP_INT(pc + 32);

-    __GLX_SWAP_INT(pc + 36);

-    __GLX_SWAP_INT(pc + 40);

-

-    target = *(GLenum *)(pc + 32);

-    uorder = *(GLint *)(pc + 36);

-    vorder = *(GLint *)(pc + 40);

-    k = __glEvalComputeK(target);

-    if (vorder <= 0 || uorder <= 0 || k < 0) {

-	/* Erroneous command. */

-	compsize = 0;

-    } else {

-	compsize = uorder * vorder * k;

-    }

-    __GLX_GET_DOUBLE(u1,pc);

-    __GLX_GET_DOUBLE(u2,pc+8);

-    __GLX_GET_DOUBLE(v1,pc+16);

-    __GLX_GET_DOUBLE(v2,pc+24);

-    __GLX_SWAP_DOUBLE_ARRAY(pc+44, compsize);

-    pc += 44;

-    ustride = vorder * k;

-    vstride = k;

-

-#ifdef __GLX_ALIGN64

-    if (((unsigned long)pc) & 7) {

-	/*

-	** Copy the doubles up 4 bytes, trashing the command but aligning

-	** the data in the process

-	*/

-	__GLX_MEM_COPY(pc-4, pc, compsize*8);

-	points = (GLdouble*) (pc - 4);

-    } else {

-	points = (GLdouble*) pc;

-    }

-#else

-    points = (GLdouble*) pc;

-#endif

-}

-

-void __glXDispSwap_CallLists(GLbyte *pc)

-{

-    GLenum type;

-    GLsizei n;

-    __GLX_DECLARE_SWAP_VARIABLES;

-    __GLX_DECLARE_SWAP_ARRAY_VARIABLES;

-

-    __GLX_SWAP_INT(pc + 4);

-    __GLX_SWAP_INT(pc + 0);

-    type = *(GLenum *)(pc + 4);

-    n = *(GLsizei *)(pc + 0);

-

-    switch (type) {

-      case GL_BYTE:

-      case GL_UNSIGNED_BYTE:

-      case GL_2_BYTES:

-      case GL_3_BYTES:

-      case GL_4_BYTES:

-	break;

-      case GL_SHORT:

-      case GL_UNSIGNED_SHORT:

-	__GLX_SWAP_SHORT_ARRAY(pc+8, n);

-	break;

-      case GL_INT:

-      case GL_UNSIGNED_INT:

-	__GLX_SWAP_INT_ARRAY(pc+8, n);

-	break;

-      case GL_FLOAT:

-	__GLX_SWAP_FLOAT_ARRAY(pc+8, n);

-	break;

-    }

-

-}

-

-static void swapArray(GLint numVals, GLenum datatype,

-                      GLint stride, GLint numVertexes, GLbyte *pc)

-{

-    int i,j;

-    __GLX_DECLARE_SWAP_VARIABLES;

-

-    switch (datatype) {

-      case GL_BYTE:

-      case GL_UNSIGNED_BYTE:

-	/* don't need to swap */

-	return;

-      case GL_SHORT:

-      case GL_UNSIGNED_SHORT:

-	for (i=0; i<numVertexes; i++) {

-	    GLshort *pVal = (GLshort *) pc;

-	    for (j=0; j<numVals; j++) {

-		__GLX_SWAP_SHORT(&pVal[j]);

-	    }

-	    pc += stride;

-	}

-	break;

-      case GL_INT:

-      case GL_UNSIGNED_INT:

-	for (i=0; i<numVertexes; i++) {

-	    GLint *pVal = (GLint *) pc;

-	    for (j=0; j<numVals; j++) {

-		__GLX_SWAP_INT(&pVal[j]);

-	    }

-	    pc += stride;

-	}

-	break;

-      case GL_FLOAT:

-	for (i=0; i<numVertexes; i++) {

-	    GLfloat *pVal = (GLfloat *) pc;

-	    for (j=0; j<numVals; j++) {

-		__GLX_SWAP_FLOAT(&pVal[j]);

-	    }

-	    pc += stride;

-	}

-	break;

-      case GL_DOUBLE:

-	for (i=0; i<numVertexes; i++) {

-	    GLdouble *pVal = (GLdouble *) pc;

-	    for (j=0; j<numVals; j++) {

-		__GLX_SWAP_DOUBLE(&pVal[j]);

-	    }

-	    pc += stride;

-	}

-	break;

-      default:

-	return;

-    }

-}

-

-void __glXDispSwap_DrawArrays(GLbyte *pc)

-{

-    __GLXdispatchDrawArraysHeader *hdr = (__GLXdispatchDrawArraysHeader *)pc;

-    __GLXdispatchDrawArraysComponentHeader *compHeader;

-    int i;

-    __GLX_DECLARE_SWAP_VARIABLES;

-

-    __GLX_SWAP_INT(&hdr->numVertexes);

-    __GLX_SWAP_INT(&hdr->numComponents);

-    __GLX_SWAP_INT(&hdr->primType);

-

-    pc += sizeof(__GLXdispatchDrawArraysHeader);

-    compHeader = (__GLXdispatchDrawArraysComponentHeader *) pc;

-

-    /* compute stride (same for all component arrays) */

-    for (i=0; i<hdr->numComponents; i++) {

-	__GLX_SWAP_INT(&compHeader[i].datatype);

-	__GLX_SWAP_INT(&compHeader[i].numVals);

-	__GLX_SWAP_INT(&compHeader[i].component);

-

-    }

-

-}

+/*
+ * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
+ * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice including the dates of first publication and
+ * either this permission notice or a reference to
+ * http://oss.sgi.com/projects/FreeB/
+ * shall be included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+ * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * Except as contained in this notice, the name of Silicon Graphics, Inc.
+ * shall not be used in advertising or otherwise to promote the sale, use or
+ * other dealings in this Software without prior written authorization from
+ * Silicon Graphics, Inc.
+ */
+
+#include "glxserver.h"
+#include "unpack.h"
+#include "g_disptab.h"
+
+GLint __glEvalComputeK(GLenum target)
+{
+    switch (target) {
+    case GL_MAP1_VERTEX_4:
+    case GL_MAP1_COLOR_4:
+    case GL_MAP1_TEXTURE_COORD_4:
+    case GL_MAP2_VERTEX_4:
+    case GL_MAP2_COLOR_4:
+    case GL_MAP2_TEXTURE_COORD_4:
+	return 4;
+    case GL_MAP1_VERTEX_3:
+    case GL_MAP1_TEXTURE_COORD_3:
+    case GL_MAP1_NORMAL:
+    case GL_MAP2_VERTEX_3:
+    case GL_MAP2_TEXTURE_COORD_3:
+    case GL_MAP2_NORMAL:
+	return 3;
+    case GL_MAP1_TEXTURE_COORD_2:
+    case GL_MAP2_TEXTURE_COORD_2:
+	return 2;
+    case GL_MAP1_TEXTURE_COORD_1:
+    case GL_MAP2_TEXTURE_COORD_1:
+    case GL_MAP1_INDEX:
+    case GL_MAP2_INDEX:
+	return 1;
+    default:
+	return 0;
+    }
+}
+
+void __glXDispSwap_Map1f(GLbyte *pc)
+{
+    GLint order, k;
+    GLfloat u1, u2, *points;
+    GLenum target;
+    GLint compsize;
+    __GLX_DECLARE_SWAP_VARIABLES;
+    __GLX_DECLARE_SWAP_ARRAY_VARIABLES;
+
+    __GLX_SWAP_INT(pc + 0);
+    __GLX_SWAP_INT(pc + 12);
+    __GLX_SWAP_FLOAT(pc + 4);
+    __GLX_SWAP_FLOAT(pc + 8);
+    
+    target = *(GLenum *)(pc + 0); 
+    order = *(GLint *)(pc + 12);
+    u1 = *(GLfloat *)(pc + 4);
+    u2 = *(GLfloat *)(pc + 8);
+    points = (GLfloat *)(pc + 16);
+    k = __glEvalComputeK(target);
+
+    if (order <= 0 || k < 0) {
+	/* Erroneous command. */
+	compsize = 0;
+    } else {
+	compsize = order * k;
+    }
+    __GLX_SWAP_FLOAT_ARRAY(points, compsize);
+
+}
+
+void __glXDispSwap_Map2f(GLbyte *pc)
+{
+    GLint uorder, vorder, ustride, vstride, k;
+    GLfloat u1, u2, v1, v2, *points;
+    GLenum target;
+    GLint compsize;
+    __GLX_DECLARE_SWAP_VARIABLES;
+    __GLX_DECLARE_SWAP_ARRAY_VARIABLES;
+
+    __GLX_SWAP_INT(pc + 0);
+    __GLX_SWAP_INT(pc + 12);
+    __GLX_SWAP_INT(pc + 24);
+    __GLX_SWAP_FLOAT(pc + 4);
+    __GLX_SWAP_FLOAT(pc + 8);
+    __GLX_SWAP_FLOAT(pc + 16);
+    __GLX_SWAP_FLOAT(pc + 20);
+    
+    target = *(GLenum *)(pc + 0); 
+    uorder = *(GLint *)(pc + 12);
+    vorder = *(GLint *)(pc + 24);
+    u1 = *(GLfloat *)(pc + 4);
+    u2 = *(GLfloat *)(pc + 8);
+    v1 = *(GLfloat *)(pc + 16);
+    v2 = *(GLfloat *)(pc + 20);
+    points = (GLfloat *)(pc + 28);
+
+    k = __glEvalComputeK(target);
+    ustride = vorder * k;
+    vstride = k;
+
+    if (vorder <= 0 || uorder <= 0 || k < 0) {
+	/* Erroneous command. */
+	compsize = 0;
+    } else {
+	compsize = uorder * vorder * k;
+    }
+    __GLX_SWAP_FLOAT_ARRAY(points, compsize);
+
+}
+
+void __glXDispSwap_Map1d(GLbyte *pc)
+{
+    GLint order, k, compsize;
+    GLenum target;
+    GLdouble u1, u2, *points;
+    __GLX_DECLARE_SWAP_VARIABLES;
+    __GLX_DECLARE_SWAP_ARRAY_VARIABLES;
+
+    __GLX_SWAP_DOUBLE(pc + 0);
+    __GLX_SWAP_DOUBLE(pc + 8);
+    __GLX_SWAP_INT(pc + 16);
+    __GLX_SWAP_INT(pc + 20);
+
+    target = *(GLenum*) (pc + 16);
+    order = *(GLint*) (pc + 20);
+    k = __glEvalComputeK(target);
+    if (order <= 0 || k < 0) {
+	/* Erroneous command. */
+	compsize = 0;
+    } else {
+	compsize = order * k;
+    }
+    __GLX_GET_DOUBLE(u1,pc);
+    __GLX_GET_DOUBLE(u2,pc+8);
+    __GLX_SWAP_DOUBLE_ARRAY(pc+24, compsize);
+    pc += 24;
+
+#ifdef __GLX_ALIGN64
+    if (((unsigned long)pc) & 7) {
+	/*
+	** Copy the doubles up 4 bytes, trashing the command but aligning
+	** the data in the process
+	*/
+	__GLX_MEM_COPY(pc-4, pc, compsize*8);
+	points = (GLdouble*) (pc - 4);
+    } else {
+	points = (GLdouble*) pc;
+    }
+#else
+    points = (GLdouble*) pc;
+#endif
+}
+
+void __glXDispSwap_Map2d(GLbyte *pc)
+{
+    GLdouble u1, u2, v1, v2, *points;
+    GLint uorder, vorder, ustride, vstride, k, compsize;
+    GLenum target;
+    __GLX_DECLARE_SWAP_VARIABLES;
+    __GLX_DECLARE_SWAP_ARRAY_VARIABLES;
+
+    __GLX_SWAP_DOUBLE(pc + 0);
+    __GLX_SWAP_DOUBLE(pc + 8);
+    __GLX_SWAP_DOUBLE(pc + 16);
+    __GLX_SWAP_DOUBLE(pc + 24);
+    __GLX_SWAP_INT(pc + 32);
+    __GLX_SWAP_INT(pc + 36);
+    __GLX_SWAP_INT(pc + 40);
+
+    target = *(GLenum *)(pc + 32);
+    uorder = *(GLint *)(pc + 36);
+    vorder = *(GLint *)(pc + 40);
+    k = __glEvalComputeK(target);
+    if (vorder <= 0 || uorder <= 0 || k < 0) {
+	/* Erroneous command. */
+	compsize = 0;
+    } else {
+	compsize = uorder * vorder * k;
+    }
+    __GLX_GET_DOUBLE(u1,pc);
+    __GLX_GET_DOUBLE(u2,pc+8);
+    __GLX_GET_DOUBLE(v1,pc+16);
+    __GLX_GET_DOUBLE(v2,pc+24);
+    __GLX_SWAP_DOUBLE_ARRAY(pc+44, compsize);
+    pc += 44;
+    ustride = vorder * k;
+    vstride = k;
+
+#ifdef __GLX_ALIGN64
+    if (((unsigned long)pc) & 7) {
+	/*
+	** Copy the doubles up 4 bytes, trashing the command but aligning
+	** the data in the process
+	*/
+	__GLX_MEM_COPY(pc-4, pc, compsize*8);
+	points = (GLdouble*) (pc - 4);
+    } else {
+	points = (GLdouble*) pc;
+    }
+#else
+    points = (GLdouble*) pc;
+#endif
+}
+
+void __glXDispSwap_CallLists(GLbyte *pc)
+{
+    GLenum type;
+    GLsizei n;
+    __GLX_DECLARE_SWAP_VARIABLES;
+    __GLX_DECLARE_SWAP_ARRAY_VARIABLES;
+
+    __GLX_SWAP_INT(pc + 4);
+    __GLX_SWAP_INT(pc + 0);
+    type = *(GLenum *)(pc + 4);
+    n = *(GLsizei *)(pc + 0);
+
+    switch (type) {
+      case GL_BYTE:
+      case GL_UNSIGNED_BYTE:
+      case GL_2_BYTES:
+      case GL_3_BYTES:
+      case GL_4_BYTES:
+	break;
+      case GL_SHORT:
+      case GL_UNSIGNED_SHORT:
+	__GLX_SWAP_SHORT_ARRAY(pc+8, n);
+	break;
+      case GL_INT:
+      case GL_UNSIGNED_INT:
+	__GLX_SWAP_INT_ARRAY(pc+8, n);
+	break;
+      case GL_FLOAT:
+	__GLX_SWAP_FLOAT_ARRAY(pc+8, n);
+	break;
+    }
+
+}
+
+void __glXDispSwap_DrawArrays(GLbyte *pc)
+{
+    __GLXdispatchDrawArraysHeader *hdr = (__GLXdispatchDrawArraysHeader *)pc;
+    __GLXdispatchDrawArraysComponentHeader *compHeader;
+    int i;
+    __GLX_DECLARE_SWAP_VARIABLES;
+
+    __GLX_SWAP_INT(&hdr->numVertexes);
+    __GLX_SWAP_INT(&hdr->numComponents);
+    __GLX_SWAP_INT(&hdr->primType);
+
+    pc += sizeof(__GLXdispatchDrawArraysHeader);
+    compHeader = (__GLXdispatchDrawArraysComponentHeader *) pc;
+
+    /* compute stride (same for all component arrays) */
+    for (i=0; i<hdr->numComponents; i++) {
+	__GLX_SWAP_INT(&compHeader[i].datatype);
+	__GLX_SWAP_INT(&compHeader[i].numVals);
+	__GLX_SWAP_INT(&compHeader[i].component);
+
+    }
+
+}