xserver git update 9/5/2010

1 files changed, 189 insertions, 200 deletions

diff --git a/xorg-server/glx/xfont.c b/xorg-server/glx/xfont.c
index b8b466d87..9bd432a80 100644
--- a/xorg-server/glx/xfont.c
+++ b/xorg-server/glx/xfont.c
@@ -1,200 +1,189 @@
-/*
- * 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.
- */
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include "glxserver.h"
-#include "glxutil.h"
-#include "unpack.h"
-#include "g_disptab.h"
-#include "glapitable.h"
-#include "glapi.h"
-#include "glthread.h"
-#include "dispatch.h"
-#include "indirect_dispatch.h"
-#include <GL/gl.h>
-#include <pixmapstr.h>
-#include <windowstr.h>
-#include <dixfontstr.h>
-
-extern XID clientErrorValue;	/* imported kludge from dix layer */
-
-/*
-** Make a single GL bitmap from a single X glyph
-*/
-static int __glXMakeBitmapFromGlyph(FontPtr font, CharInfoPtr pci)
-{
-    int i, j;
-    int widthPadded;	/* width of glyph in bytes, as padded by X */
-    int allocBytes;	/* bytes to allocate to store bitmap */
-    int w;		/* width of glyph in bits */
-    int h;		/* height of glyph */
-    register unsigned char *pglyph;
-    register unsigned char *p;
-    unsigned char *allocbuf;
-#define __GL_CHAR_BUF_SIZE 2048
-    unsigned char buf[__GL_CHAR_BUF_SIZE];
-
-    w = GLYPHWIDTHPIXELS(pci);
-    h = GLYPHHEIGHTPIXELS(pci);
-    widthPadded = GLYPHWIDTHBYTESPADDED(pci);
-
-    /*
-    ** Use the local buf if possible, otherwise malloc.
-    */
-    allocBytes = widthPadded * h;
-    if (allocBytes <= __GL_CHAR_BUF_SIZE) {
-	p = buf;
-	allocbuf = 0;
-    } else {
-	p = (unsigned char *) xalloc(allocBytes);
-	if (!p)
-	    return BadAlloc;
-	allocbuf = p;
-    }
-
-    /*
-    ** We have to reverse the picture, top to bottom
-    */
-
-    pglyph = FONTGLYPHBITS(FONTGLYPHS(font), pci) + (h-1)*widthPadded;
-    for (j=0; j < h; j++) {
-	for (i=0; i < widthPadded; i++) {
-	    p[i] = pglyph[i];
-	}
-	pglyph -= widthPadded;
-	p += widthPadded;
-    }
-    CALL_Bitmap( GET_DISPATCH(), (w, h, -pci->metrics.leftSideBearing,
-				  pci->metrics.descent,
-				  pci->metrics.characterWidth, 0, 
-				  allocbuf ? allocbuf : buf) );
-
-    if (allocbuf) {
-	xfree(allocbuf);
-    }
-    return Success;
-#undef __GL_CHAR_BUF_SIZE
-}
-
-/*
-** Create a GL bitmap for each character in the X font.  The bitmap is stored
-** in a display list.
-*/
-
-static int 
-MakeBitmapsFromFont(FontPtr pFont, int first, int count, int list_base)
-{
-    unsigned long   i, nglyphs;
-    CARD8	    chs[2];		/* the font index we are going after */
-    CharInfoPtr	    pci;
-    int rv;				/* return value */
-    int encoding = (FONTLASTROW(pFont) == 0) ? Linear16Bit : TwoD16Bit;
-    
-    CALL_PixelStorei( GET_DISPATCH(), (GL_UNPACK_SWAP_BYTES, FALSE) );
-    CALL_PixelStorei( GET_DISPATCH(), (GL_UNPACK_LSB_FIRST, BITMAP_BIT_ORDER == LSBFirst) );
-    CALL_PixelStorei( GET_DISPATCH(), (GL_UNPACK_ROW_LENGTH, 0) );
-    CALL_PixelStorei( GET_DISPATCH(), (GL_UNPACK_SKIP_ROWS, 0) );
-    CALL_PixelStorei( GET_DISPATCH(), (GL_UNPACK_SKIP_PIXELS, 0) );
-    CALL_PixelStorei( GET_DISPATCH(), (GL_UNPACK_ALIGNMENT, GLYPHPADBYTES) );
-    for (i=0; i < count; i++) {
-	chs[0] = (first + i) >> 8;	/* high byte is first byte */
-	chs[1] = first + i;
-
-	(*pFont->get_glyphs)(pFont, 1, chs, (FontEncoding)encoding, 
-		&nglyphs, &pci);
-
-	/*
-	** Define a display list containing just a glBitmap() call.
-	*/
-	CALL_NewList( GET_DISPATCH(), (list_base + i, GL_COMPILE) );
-	if (nglyphs ) {
-	    rv = __glXMakeBitmapFromGlyph(pFont, pci);
-	    if (rv) {
-		return rv;
-	    }
-	}
-	CALL_EndList( GET_DISPATCH(), () );
-    }
-    return Success;
-}
-
-/************************************************************************/
-
-int __glXDisp_UseXFont(__GLXclientState *cl, GLbyte *pc)
-{
-    ClientPtr client = cl->client;
-    xGLXUseXFontReq *req;
-    FontPtr pFont;
-    GC *pGC;
-    GLuint currentListIndex;
-    __GLXcontext *cx;
-    int error;
-
-    req = (xGLXUseXFontReq *) pc;
-    cx = __glXForceCurrent(cl, req->contextTag, &error);
-    if (!cx) {
-	return error;
-    }
-
-    CALL_GetIntegerv( GET_DISPATCH(), (GL_LIST_INDEX, (GLint*) &currentListIndex) );
-    if (currentListIndex != 0) {
-	/*
-	** A display list is currently being made.  It is an error
-	** to try to make a font during another lists construction.
-	*/
-	client->errorValue = cx->id;
-	return __glXError(GLXBadContextState);
-    }
-
-    /*
-    ** Font can actually be either the ID of a font or the ID of a GC
-    ** containing a font.
-    */
-
-    error = dixLookupResourceByType((pointer *)&pFont,
-				    req->font, RT_FONT,
-				    client, DixReadAccess);
-    if (error != Success) {
-	error = dixLookupResourceByType((pointer *)&pGC,
-					req->font, RT_GC,
-					client, DixReadAccess);
-        if (error != Success) {
-	    client->errorValue = req->font;
-            return error == BadGC ? BadFont : error;
-	}
-	pFont = pGC->font;
-    }
-
-    return MakeBitmapsFromFont(pFont, req->first, req->count,
-				    req->listBase);
-}
+/*

+ * 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.

+ */

+

+#ifdef HAVE_DIX_CONFIG_H

+#include <dix-config.h>

+#endif

+

+#include "glxserver.h"

+#include "glxutil.h"

+#include "unpack.h"

+#include "g_disptab.h"

+#include "glapitable.h"

+#include "glapi.h"

+#include "glthread.h"

+#include "dispatch.h"

+#include "indirect_dispatch.h"

+#include <GL/gl.h>

+#include <pixmapstr.h>

+#include <windowstr.h>

+#include <dixfontstr.h>

+

+extern XID clientErrorValue;	/* imported kludge from dix layer */

+

+/*

+** Make a single GL bitmap from a single X glyph

+*/

+static int __glXMakeBitmapFromGlyph(FontPtr font, CharInfoPtr pci)

+{

+    int i, j;

+    int widthPadded;	/* width of glyph in bytes, as padded by X */

+    int allocBytes;	/* bytes to allocate to store bitmap */

+    int w;		/* width of glyph in bits */

+    int h;		/* height of glyph */

+    register unsigned char *pglyph;

+    register unsigned char *p;

+    unsigned char *allocbuf;

+#define __GL_CHAR_BUF_SIZE 2048

+    unsigned char buf[__GL_CHAR_BUF_SIZE];

+

+    w = GLYPHWIDTHPIXELS(pci);

+    h = GLYPHHEIGHTPIXELS(pci);

+    widthPadded = GLYPHWIDTHBYTESPADDED(pci);

+

+    /*

+    ** Use the local buf if possible, otherwise malloc.

+    */

+    allocBytes = widthPadded * h;

+    if (allocBytes <= __GL_CHAR_BUF_SIZE) {

+	p = buf;

+	allocbuf = 0;

+    } else {

+	p = (unsigned char *) xalloc(allocBytes);

+	if (!p)

+	    return BadAlloc;

+	allocbuf = p;

+    }

+

+    /*

+    ** We have to reverse the picture, top to bottom

+    */

+

+    pglyph = FONTGLYPHBITS(FONTGLYPHS(font), pci) + (h-1)*widthPadded;

+    for (j=0; j < h; j++) {

+	for (i=0; i < widthPadded; i++) {

+	    p[i] = pglyph[i];

+	}

+	pglyph -= widthPadded;

+	p += widthPadded;

+    }

+    CALL_Bitmap( GET_DISPATCH(), (w, h, -pci->metrics.leftSideBearing,

+				  pci->metrics.descent,

+				  pci->metrics.characterWidth, 0, 

+				  allocbuf ? allocbuf : buf) );

+

+    if (allocbuf) {

+	xfree(allocbuf);

+    }

+    return Success;

+#undef __GL_CHAR_BUF_SIZE

+}

+

+/*

+** Create a GL bitmap for each character in the X font.  The bitmap is stored

+** in a display list.

+*/

+

+static int 

+MakeBitmapsFromFont(FontPtr pFont, int first, int count, int list_base)

+{

+    unsigned long   i, nglyphs;

+    CARD8	    chs[2];		/* the font index we are going after */

+    CharInfoPtr	    pci;

+    int rv;				/* return value */

+    int encoding = (FONTLASTROW(pFont) == 0) ? Linear16Bit : TwoD16Bit;

+    

+    CALL_PixelStorei( GET_DISPATCH(), (GL_UNPACK_SWAP_BYTES, FALSE) );

+    CALL_PixelStorei( GET_DISPATCH(), (GL_UNPACK_LSB_FIRST, BITMAP_BIT_ORDER == LSBFirst) );

+    CALL_PixelStorei( GET_DISPATCH(), (GL_UNPACK_ROW_LENGTH, 0) );

+    CALL_PixelStorei( GET_DISPATCH(), (GL_UNPACK_SKIP_ROWS, 0) );

+    CALL_PixelStorei( GET_DISPATCH(), (GL_UNPACK_SKIP_PIXELS, 0) );

+    CALL_PixelStorei( GET_DISPATCH(), (GL_UNPACK_ALIGNMENT, GLYPHPADBYTES) );

+    for (i=0; i < count; i++) {

+	chs[0] = (first + i) >> 8;	/* high byte is first byte */

+	chs[1] = first + i;

+

+	(*pFont->get_glyphs)(pFont, 1, chs, (FontEncoding)encoding, 

+		&nglyphs, &pci);

+

+	/*

+	** Define a display list containing just a glBitmap() call.

+	*/

+	CALL_NewList( GET_DISPATCH(), (list_base + i, GL_COMPILE) );

+	if (nglyphs ) {

+	    rv = __glXMakeBitmapFromGlyph(pFont, pci);

+	    if (rv) {

+		return rv;

+	    }

+	}

+	CALL_EndList( GET_DISPATCH(), () );

+    }

+    return Success;

+}

+

+/************************************************************************/

+

+int __glXDisp_UseXFont(__GLXclientState *cl, GLbyte *pc)

+{

+    ClientPtr client = cl->client;

+    xGLXUseXFontReq *req;

+    FontPtr pFont;

+    GLuint currentListIndex;

+    __GLXcontext *cx;

+    int error;

+

+    req = (xGLXUseXFontReq *) pc;

+    cx = __glXForceCurrent(cl, req->contextTag, &error);

+    if (!cx) {

+	return error;

+    }

+

+    CALL_GetIntegerv( GET_DISPATCH(), (GL_LIST_INDEX, (GLint*) &currentListIndex) );

+    if (currentListIndex != 0) {

+	/*

+	** A display list is currently being made.  It is an error

+	** to try to make a font during another lists construction.

+	*/

+	client->errorValue = cx->id;

+	return __glXError(GLXBadContextState);

+    }

+

+    /*

+    ** Font can actually be either the ID of a font or the ID of a GC

+    ** containing a font.

+    */

+

+    error = dixLookupFontable(&pFont, req->font, client, DixReadAccess);

+    if (error != Success)

+	return error;

+

+    return MakeBitmapsFromFont(pFont, req->first, req->count,

+				    req->listBase);

+}