diff options
Diffstat (limited to 'nx-X11/extras/Mesa/src/glx/x11/clientattrib.c')
| -rw-r--r-- | nx-X11/extras/Mesa/src/glx/x11/clientattrib.c | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/nx-X11/extras/Mesa/src/glx/x11/clientattrib.c b/nx-X11/extras/Mesa/src/glx/x11/clientattrib.c new file mode 100644 index 000000000..bfb263ced --- /dev/null +++ b/nx-X11/extras/Mesa/src/glx/x11/clientattrib.c @@ -0,0 +1,141 @@ +/* $XFree86: xc/lib/GL/glx/clientattrib.c,v 1.5 2001/03/21 16:04:39 dawes Exp $ */ +/* +** 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. +** +*/ + +#include <assert.h> +#include "glxclient.h" +#include "indirect.h" +#include "indirect_vertex_array.h" + +/*****************************************************************************/ + +static void +do_enable_disable(GLenum array, GLboolean val ) +{ + __GLXcontext *gc = __glXGetCurrentContext(); + __GLXattribute * state = (__GLXattribute *)(gc->client_state_private); + unsigned index = 0; + + if ( array == GL_TEXTURE_COORD_ARRAY ) { + index = __glXGetActiveTextureUnit( state ); + } + + if ( ! __glXSetArrayEnable( state, array, index, val ) ) { + __glXSetError(gc, GL_INVALID_ENUM); + } +} + +void __indirect_glEnableClientState(GLenum array) +{ + do_enable_disable( array, GL_TRUE ); +} + +void __indirect_glDisableClientState(GLenum array) +{ + do_enable_disable( array, GL_FALSE ); +} + +/************************************************************************/ + +void __indirect_glPushClientAttrib(GLuint mask) +{ + __GLXcontext *gc = __glXGetCurrentContext(); + __GLXattribute * state = (__GLXattribute *)(gc->client_state_private); + __GLXattribute **spp = gc->attributes.stackPointer, *sp; + + if (spp < &gc->attributes.stack[__GL_CLIENT_ATTRIB_STACK_DEPTH]) { + if (!(sp = *spp)) { + sp = (__GLXattribute *)Xmalloc(sizeof(__GLXattribute)); + *spp = sp; + } + sp->mask = mask; + gc->attributes.stackPointer = spp + 1; + if (mask & GL_CLIENT_PIXEL_STORE_BIT) { + sp->storePack = state->storePack; + sp->storeUnpack = state->storeUnpack; + } + if (mask & GL_CLIENT_VERTEX_ARRAY_BIT) { + __glXPushArrayState( state ); + } + } else { + __glXSetError(gc, GL_STACK_OVERFLOW); + return; + } +} + +void __indirect_glPopClientAttrib(void) +{ + __GLXcontext *gc = __glXGetCurrentContext(); + __GLXattribute * state = (__GLXattribute *)(gc->client_state_private); + __GLXattribute **spp = gc->attributes.stackPointer, *sp; + GLuint mask; + + if (spp > &gc->attributes.stack[0]) { + --spp; + sp = *spp; + assert(sp != 0); + mask = sp->mask; + gc->attributes.stackPointer = spp; + + if (mask & GL_CLIENT_PIXEL_STORE_BIT) { + state->storePack = sp->storePack; + state->storeUnpack = sp->storeUnpack; + } + if (mask & GL_CLIENT_VERTEX_ARRAY_BIT) { + __glXPopArrayState( state ); + } + + sp->mask = 0; + } else { + __glXSetError(gc, GL_STACK_UNDERFLOW); + return; + } +} + +void __glFreeAttributeState(__GLXcontext *gc) +{ + __GLXattribute *sp, **spp; + + for (spp = &gc->attributes.stack[0]; + spp < &gc->attributes.stack[__GL_CLIENT_ATTRIB_STACK_DEPTH]; + spp++) { + sp = *spp; + if (sp) { + XFree((char *)sp); + } else { + break; + } + } +} |