2004-10-25 22:09:16 +01:00
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/* $XFree86: xc/lib/GL/glx/clientattrib.c,v 1.5 2001/03/21 16:04:39 dawes Exp $ */
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/*
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** License Applicability. Except to the extent portions of this file are
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** made subject to an alternative license as permitted in the SGI Free
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** Software License B, Version 1.1 (the "License"), the contents of this
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** file are subject only to the provisions of the License. You may not use
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** this file except in compliance with the License. You may obtain a copy
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** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
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** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
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**
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** http://oss.sgi.com/projects/FreeB
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**
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** Note that, as provided in the License, the Software is distributed on an
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** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
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** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
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** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
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** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
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**
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** Original Code. The Original Code is: OpenGL Sample Implementation,
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** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
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** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
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** Copyright in any portions created by third parties is as indicated
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** elsewhere herein. All Rights Reserved.
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**
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** Additional Notice Provisions: The application programming interfaces
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** established by SGI in conjunction with the Original Code are The
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** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
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** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
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** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
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** Window System(R) (Version 1.3), released October 19, 1998. This software
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** was created using the OpenGL(R) version 1.2.1 Sample Implementation
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** published by SGI, but has not been independently verified as being
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** compliant with the OpenGL(R) version 1.2.1 Specification.
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**
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*/
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#include <assert.h>
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#include "glxclient.h"
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2005-02-22 22:36:31 +00:00
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#include "indirect_vertex_array.h"
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2004-10-25 22:09:16 +01:00
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/*****************************************************************************/
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2005-02-22 22:36:31 +00:00
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static void
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do_enable_disable(GLenum array, GLboolean val )
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2004-10-25 22:09:16 +01:00
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{
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__GLXcontext *gc = __glXGetCurrentContext();
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__GLXattribute * state = (__GLXattribute *)(gc->client_state_private);
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2005-02-22 22:36:31 +00:00
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unsigned index = 0;
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if ( array == GL_TEXTURE_COORD_ARRAY ) {
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index = __glXGetActiveTextureUnit( state );
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}
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2004-10-25 22:09:16 +01:00
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2005-02-22 22:36:31 +00:00
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if ( ! __glXSetArrayEnable( state, array, index, val ) ) {
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__glXSetError(gc, GL_INVALID_ENUM);
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2004-10-25 22:09:16 +01:00
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}
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}
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2005-02-22 22:36:31 +00:00
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void __indirect_glEnableClientState(GLenum array)
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2004-10-25 22:09:16 +01:00
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{
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2005-02-22 22:36:31 +00:00
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do_enable_disable( array, GL_TRUE );
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}
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2004-10-25 22:09:16 +01:00
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2005-02-22 22:36:31 +00:00
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void __indirect_glDisableClientState(GLenum array)
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{
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do_enable_disable( array, GL_FALSE );
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2004-10-25 22:09:16 +01:00
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}
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/************************************************************************/
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2004-12-01 08:02:50 +00:00
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void __indirect_glPushClientAttrib(GLuint mask)
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2004-10-25 22:09:16 +01:00
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{
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__GLXcontext *gc = __glXGetCurrentContext();
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__GLXattribute * state = (__GLXattribute *)(gc->client_state_private);
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__GLXattribute **spp = gc->attributes.stackPointer, *sp;
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if (spp < &gc->attributes.stack[__GL_CLIENT_ATTRIB_STACK_DEPTH]) {
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if (!(sp = *spp)) {
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sp = (__GLXattribute *)Xmalloc(sizeof(__GLXattribute));
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*spp = sp;
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}
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sp->mask = mask;
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gc->attributes.stackPointer = spp + 1;
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if (mask & GL_CLIENT_PIXEL_STORE_BIT) {
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sp->storePack = state->storePack;
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sp->storeUnpack = state->storeUnpack;
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}
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if (mask & GL_CLIENT_VERTEX_ARRAY_BIT) {
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__glXPushArrayState( state );
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2004-10-25 22:09:16 +01:00
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}
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} else {
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__glXSetError(gc, GL_STACK_OVERFLOW);
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return;
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}
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}
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2004-12-01 08:02:50 +00:00
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void __indirect_glPopClientAttrib(void)
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2004-10-25 22:09:16 +01:00
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{
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__GLXcontext *gc = __glXGetCurrentContext();
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__GLXattribute * state = (__GLXattribute *)(gc->client_state_private);
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__GLXattribute **spp = gc->attributes.stackPointer, *sp;
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GLuint mask;
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if (spp > &gc->attributes.stack[0]) {
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--spp;
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sp = *spp;
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assert(sp != 0);
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mask = sp->mask;
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gc->attributes.stackPointer = spp;
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if (mask & GL_CLIENT_PIXEL_STORE_BIT) {
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state->storePack = sp->storePack;
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state->storeUnpack = sp->storeUnpack;
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}
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if (mask & GL_CLIENT_VERTEX_ARRAY_BIT) {
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2005-02-22 22:36:31 +00:00
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__glXPopArrayState( state );
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2004-10-25 22:09:16 +01:00
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}
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sp->mask = 0;
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} else {
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__glXSetError(gc, GL_STACK_UNDERFLOW);
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return;
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}
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}
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void __glFreeAttributeState(__GLXcontext *gc)
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{
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__GLXattribute *sp, **spp;
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for (spp = &gc->attributes.stack[0];
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spp < &gc->attributes.stack[__GL_CLIENT_ATTRIB_STACK_DEPTH];
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spp++) {
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sp = *spp;
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if (sp) {
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XFree((char *)sp);
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} else {
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break;
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}
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}
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}
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