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![Jérôme Gardou](/assets/img/avatar_default.png)
With this commit, we now use a forked version of MESA which only supports OpenGL 1.1, like the windows implementation does. It exposes : - The same pixel formats - The same set of extensions - Nothing more All of this without taking 10% of your build time. If you need a more modern option, look at the MESA package from Rapps, which is (and must be) maintained outside of this code tree. CORE-7499
625 lines
20 KiB
C
625 lines
20 KiB
C
/* $Id: attrib.c,v 1.9 1997/07/24 01:24:28 brianp Exp $ */
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/*
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* Mesa 3-D graphics library
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* Version: 2.4
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* Copyright (C) 1995-1997 Brian Paul
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/*
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* $Log: attrib.c,v $
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* Revision 1.9 1997/07/24 01:24:28 brianp
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* changed precompiled header symbol from PCH to PC_HEADER
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*
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* Revision 1.8 1997/05/28 03:23:09 brianp
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* added precompiled header (PCH) support
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*
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* Revision 1.7 1997/04/20 19:49:57 brianp
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* replaced abort() calls with gl_problem()
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*
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* Revision 1.6 1997/04/01 04:18:28 brianp
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* removed #include "draw.h"
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*
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* Revision 1.5 1997/01/28 22:13:02 brianp
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* now there's separate state for CI and RGBA logic op enabled
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*
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* Revision 1.4 1996/10/01 03:30:01 brianp
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* added #include "misc.h"
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*
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* Revision 1.3 1996/09/30 23:55:06 brianp
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* call gl_DrawBuffer() when glPopAttrib(GL_COLOR_BUFFER_BIT)
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*
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* Revision 1.2 1996/09/27 01:24:14 brianp
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* removed unused variables
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*
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* Revision 1.1 1996/09/13 01:38:16 brianp
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* Initial revision
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*
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*/
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#ifdef PC_HEADER
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#include "all.h"
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#else
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#include <stdlib.h>
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#include <string.h>
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#include "attrib.h"
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#include "context.h"
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#include "dlist.h"
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#include "macros.h"
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#include "misc.h"
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#include "types.h"
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#endif
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#define MALLOC_STRUCT(T) (struct T *) malloc( sizeof(struct T) )
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static struct gl_attrib_node *new_attrib_node( GLbitfield kind )
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{
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struct gl_attrib_node *an;
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an = (struct gl_attrib_node *) malloc( sizeof(struct gl_attrib_node) );
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if (an) {
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an->kind = kind;
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}
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return an;
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}
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void gl_PushAttrib( GLcontext* ctx, GLbitfield mask )
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{
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struct gl_attrib_node *newnode;
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struct gl_attrib_node *head;
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if (INSIDE_BEGIN_END(ctx)) {
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gl_error( ctx, GL_INVALID_OPERATION, "glPushAttrib" );
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return;
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}
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if (ctx->AttribStackDepth>=MAX_ATTRIB_STACK_DEPTH) {
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gl_error( ctx, GL_STACK_OVERFLOW, "glPushAttrib" );
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return;
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}
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/* Build linked list of attribute nodes which save all attribute */
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/* groups specified by the mask. */
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head = NULL;
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if (mask & GL_ACCUM_BUFFER_BIT) {
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struct gl_accum_attrib *attr;
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attr = MALLOC_STRUCT( gl_accum_attrib );
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MEMCPY( attr, &ctx->Accum, sizeof(struct gl_accum_attrib) );
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newnode = new_attrib_node( GL_ACCUM_BUFFER_BIT );
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newnode->data = attr;
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newnode->next = head;
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head = newnode;
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}
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if (mask & GL_COLOR_BUFFER_BIT) {
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struct gl_colorbuffer_attrib *attr;
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attr = MALLOC_STRUCT( gl_colorbuffer_attrib );
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MEMCPY( attr, &ctx->Color, sizeof(struct gl_colorbuffer_attrib) );
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newnode = new_attrib_node( GL_COLOR_BUFFER_BIT );
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newnode->data = attr;
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newnode->next = head;
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head = newnode;
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}
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if (mask & GL_CURRENT_BIT) {
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struct gl_current_attrib *attr;
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attr = MALLOC_STRUCT( gl_current_attrib );
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MEMCPY( attr, &ctx->Current, sizeof(struct gl_current_attrib) );
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newnode = new_attrib_node( GL_CURRENT_BIT );
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newnode->data = attr;
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newnode->next = head;
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head = newnode;
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}
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if (mask & GL_DEPTH_BUFFER_BIT) {
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struct gl_depthbuffer_attrib *attr;
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attr = MALLOC_STRUCT( gl_depthbuffer_attrib );
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MEMCPY( attr, &ctx->Depth, sizeof(struct gl_depthbuffer_attrib) );
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newnode = new_attrib_node( GL_DEPTH_BUFFER_BIT );
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newnode->data = attr;
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newnode->next = head;
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head = newnode;
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}
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if (mask & GL_ENABLE_BIT) {
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struct gl_enable_attrib *attr;
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GLuint i;
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attr = MALLOC_STRUCT( gl_enable_attrib );
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/* Copy enable flags from all other attributes into the enable struct. */
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attr->AlphaTest = ctx->Color.AlphaEnabled;
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attr->AutoNormal = ctx->Eval.AutoNormal;
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attr->Blend = ctx->Color.BlendEnabled;
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for (i=0;i<MAX_CLIP_PLANES;i++) {
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attr->ClipPlane[i] = ctx->Transform.ClipEnabled[i];
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}
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attr->ColorMaterial = ctx->Light.ColorMaterialEnabled;
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attr->CullFace = ctx->Polygon.CullFlag;
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attr->DepthTest = ctx->Depth.Test;
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attr->Dither = ctx->Color.DitherFlag;
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attr->Fog = ctx->Fog.Enabled;
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for (i=0;i<MAX_LIGHTS;i++) {
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attr->Light[i] = ctx->Light.Light[i].Enabled;
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}
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attr->Lighting = ctx->Light.Enabled;
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attr->LineSmooth = ctx->Line.SmoothFlag;
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attr->LineStipple = ctx->Line.StippleFlag;
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attr->IndexLogicOp = ctx->Color.IndexLogicOpEnabled;
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attr->ColorLogicOp = ctx->Color.ColorLogicOpEnabled;
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attr->Map1Color4 = ctx->Eval.Map1Color4;
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attr->Map1Index = ctx->Eval.Map1Index;
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attr->Map1Normal = ctx->Eval.Map1Normal;
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attr->Map1TextureCoord1 = ctx->Eval.Map1TextureCoord1;
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attr->Map1TextureCoord2 = ctx->Eval.Map1TextureCoord2;
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attr->Map1TextureCoord3 = ctx->Eval.Map1TextureCoord3;
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attr->Map1TextureCoord4 = ctx->Eval.Map1TextureCoord4;
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attr->Map1Vertex3 = ctx->Eval.Map1Vertex3;
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attr->Map1Vertex4 = ctx->Eval.Map1Vertex4;
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attr->Map2Color4 = ctx->Eval.Map2Color4;
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attr->Map2Index = ctx->Eval.Map2Index;
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attr->Map2Normal = ctx->Eval.Map2Normal;
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attr->Map2TextureCoord1 = ctx->Eval.Map2TextureCoord1;
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attr->Map2TextureCoord2 = ctx->Eval.Map2TextureCoord2;
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attr->Map2TextureCoord3 = ctx->Eval.Map2TextureCoord3;
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attr->Map2TextureCoord4 = ctx->Eval.Map2TextureCoord4;
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attr->Map2Vertex3 = ctx->Eval.Map2Vertex3;
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attr->Map2Vertex4 = ctx->Eval.Map2Vertex4;
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attr->Normalize = ctx->Transform.Normalize;
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attr->PointSmooth = ctx->Point.SmoothFlag;
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attr->PolygonOffsetPoint = ctx->Polygon.OffsetPoint;
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attr->PolygonOffsetLine = ctx->Polygon.OffsetLine;
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attr->PolygonOffsetFill = ctx->Polygon.OffsetFill;
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attr->PolygonSmooth = ctx->Polygon.SmoothFlag;
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attr->PolygonStipple = ctx->Polygon.StippleFlag;
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attr->Scissor = ctx->Scissor.Enabled;
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attr->Stencil = ctx->Stencil.Enabled;
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attr->Texture = ctx->Texture.Enabled;
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attr->TexGen = ctx->Texture.TexGenEnabled;
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newnode = new_attrib_node( GL_ENABLE_BIT );
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newnode->data = attr;
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newnode->next = head;
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head = newnode;
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}
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if (mask & GL_EVAL_BIT) {
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struct gl_eval_attrib *attr;
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attr = MALLOC_STRUCT( gl_eval_attrib );
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MEMCPY( attr, &ctx->Eval, sizeof(struct gl_eval_attrib) );
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newnode = new_attrib_node( GL_EVAL_BIT );
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newnode->data = attr;
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newnode->next = head;
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head = newnode;
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}
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if (mask & GL_FOG_BIT) {
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struct gl_fog_attrib *attr;
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attr = MALLOC_STRUCT( gl_fog_attrib );
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MEMCPY( attr, &ctx->Fog, sizeof(struct gl_fog_attrib) );
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newnode = new_attrib_node( GL_FOG_BIT );
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newnode->data = attr;
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newnode->next = head;
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head = newnode;
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}
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if (mask & GL_HINT_BIT) {
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struct gl_hint_attrib *attr;
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attr = MALLOC_STRUCT( gl_hint_attrib );
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MEMCPY( attr, &ctx->Hint, sizeof(struct gl_hint_attrib) );
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newnode = new_attrib_node( GL_HINT_BIT );
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newnode->data = attr;
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newnode->next = head;
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head = newnode;
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}
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if (mask & GL_LIGHTING_BIT) {
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struct gl_light_attrib *attr;
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attr = MALLOC_STRUCT( gl_light_attrib );
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MEMCPY( attr, &ctx->Light, sizeof(struct gl_light_attrib) );
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newnode = new_attrib_node( GL_LIGHTING_BIT );
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newnode->data = attr;
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newnode->next = head;
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head = newnode;
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}
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if (mask & GL_LINE_BIT) {
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struct gl_line_attrib *attr;
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attr = MALLOC_STRUCT( gl_line_attrib );
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MEMCPY( attr, &ctx->Line, sizeof(struct gl_line_attrib) );
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newnode = new_attrib_node( GL_LINE_BIT );
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newnode->data = attr;
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newnode->next = head;
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head = newnode;
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}
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if (mask & GL_LIST_BIT) {
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struct gl_list_attrib *attr;
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attr = MALLOC_STRUCT( gl_list_attrib );
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MEMCPY( attr, &ctx->List, sizeof(struct gl_list_attrib) );
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newnode = new_attrib_node( GL_LIST_BIT );
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newnode->data = attr;
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newnode->next = head;
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head = newnode;
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}
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if (mask & GL_PIXEL_MODE_BIT) {
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struct gl_pixel_attrib *attr;
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attr = MALLOC_STRUCT( gl_pixel_attrib );
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MEMCPY( attr, &ctx->Pixel, sizeof(struct gl_pixel_attrib) );
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newnode = new_attrib_node( GL_PIXEL_MODE_BIT );
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newnode->data = attr;
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newnode->next = head;
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head = newnode;
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}
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if (mask & GL_POINT_BIT) {
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struct gl_point_attrib *attr;
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attr = MALLOC_STRUCT( gl_point_attrib );
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MEMCPY( attr, &ctx->Point, sizeof(struct gl_point_attrib) );
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newnode = new_attrib_node( GL_POINT_BIT );
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newnode->data = attr;
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newnode->next = head;
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head = newnode;
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}
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if (mask & GL_POLYGON_BIT) {
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struct gl_polygon_attrib *attr;
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attr = MALLOC_STRUCT( gl_polygon_attrib );
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MEMCPY( attr, &ctx->Polygon, sizeof(struct gl_polygon_attrib) );
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newnode = new_attrib_node( GL_POLYGON_BIT );
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newnode->data = attr;
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newnode->next = head;
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head = newnode;
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}
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if (mask & GL_POLYGON_STIPPLE_BIT) {
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GLuint *stipple;
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stipple = (GLuint *) malloc( 32*sizeof(GLuint) );
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MEMCPY( stipple, ctx->PolygonStipple, 32*sizeof(GLuint) );
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newnode = new_attrib_node( GL_POLYGON_STIPPLE_BIT );
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newnode->data = stipple;
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newnode->next = head;
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head = newnode;
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}
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if (mask & GL_SCISSOR_BIT) {
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struct gl_scissor_attrib *attr;
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attr = MALLOC_STRUCT( gl_scissor_attrib );
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MEMCPY( attr, &ctx->Scissor, sizeof(struct gl_scissor_attrib) );
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newnode = new_attrib_node( GL_SCISSOR_BIT );
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newnode->data = attr;
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newnode->next = head;
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head = newnode;
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}
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if (mask & GL_STENCIL_BUFFER_BIT) {
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struct gl_stencil_attrib *attr;
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attr = MALLOC_STRUCT( gl_stencil_attrib );
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MEMCPY( attr, &ctx->Stencil, sizeof(struct gl_stencil_attrib) );
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newnode = new_attrib_node( GL_STENCIL_BUFFER_BIT );
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newnode->data = attr;
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newnode->next = head;
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head = newnode;
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}
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if (mask & GL_TEXTURE_BIT) {
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struct gl_texture_attrib *attr;
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attr = MALLOC_STRUCT( gl_texture_attrib );
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MEMCPY( attr, &ctx->Texture, sizeof(struct gl_texture_attrib) );
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newnode = new_attrib_node( GL_TEXTURE_BIT );
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newnode->data = attr;
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newnode->next = head;
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head = newnode;
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}
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if (mask & GL_TRANSFORM_BIT) {
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struct gl_transform_attrib *attr;
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attr = MALLOC_STRUCT( gl_transform_attrib );
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MEMCPY( attr, &ctx->Transform, sizeof(struct gl_transform_attrib) );
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newnode = new_attrib_node( GL_TRANSFORM_BIT );
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newnode->data = attr;
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newnode->next = head;
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head = newnode;
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}
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if (mask & GL_VIEWPORT_BIT) {
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struct gl_viewport_attrib *attr;
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attr = MALLOC_STRUCT( gl_viewport_attrib );
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MEMCPY( attr, &ctx->Viewport, sizeof(struct gl_viewport_attrib) );
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newnode = new_attrib_node( GL_VIEWPORT_BIT );
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newnode->data = attr;
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newnode->next = head;
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head = newnode;
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}
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/* etc... */
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ctx->AttribStack[ctx->AttribStackDepth] = head;
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ctx->AttribStackDepth++;
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}
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void gl_PopAttrib( GLcontext* ctx )
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{
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struct gl_attrib_node *attr, *next;
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struct gl_enable_attrib *enable;
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GLuint i, oldDrawBuffer;
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if (INSIDE_BEGIN_END(ctx)) {
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gl_error( ctx, GL_INVALID_OPERATION, "glPopAttrib" );
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return;
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}
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if (ctx->AttribStackDepth==0) {
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gl_error( ctx, GL_STACK_UNDERFLOW, "glPopAttrib" );
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return;
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}
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ctx->AttribStackDepth--;
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attr = ctx->AttribStack[ctx->AttribStackDepth];
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while (attr) {
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switch (attr->kind) {
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case GL_ACCUM_BUFFER_BIT:
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MEMCPY( &ctx->Accum, attr->data, sizeof(struct gl_accum_attrib) );
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break;
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case GL_COLOR_BUFFER_BIT:
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oldDrawBuffer = ctx->Color.DrawBuffer;
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MEMCPY( &ctx->Color, attr->data,
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sizeof(struct gl_colorbuffer_attrib) );
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if (ctx->Color.DrawBuffer != oldDrawBuffer) {
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gl_DrawBuffer(ctx, ctx->Color.DrawBuffer);
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}
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break;
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case GL_CURRENT_BIT:
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MEMCPY( &ctx->Current, attr->data,
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sizeof(struct gl_current_attrib) );
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break;
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case GL_DEPTH_BUFFER_BIT:
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MEMCPY( &ctx->Depth, attr->data,
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sizeof(struct gl_depthbuffer_attrib) );
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break;
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case GL_ENABLE_BIT:
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enable = (struct gl_enable_attrib *) attr->data;
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ctx->Color.AlphaEnabled = enable->AlphaTest;
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ctx->Transform.Normalize = enable->AutoNormal;
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ctx->Color.BlendEnabled = enable->Blend;
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for (i=0;i<MAX_CLIP_PLANES;i++) {
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ctx->Transform.ClipEnabled[i] = enable->ClipPlane[i];
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}
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ctx->Light.ColorMaterialEnabled = enable->ColorMaterial;
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ctx->Polygon.CullFlag = enable->CullFace;
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ctx->Depth.Test = enable->DepthTest;
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ctx->Color.DitherFlag = enable->Dither;
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ctx->Fog.Enabled = enable->Fog;
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ctx->Light.Enabled = enable->Lighting;
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ctx->Line.SmoothFlag = enable->LineSmooth;
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ctx->Line.StippleFlag = enable->LineStipple;
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ctx->Color.IndexLogicOpEnabled = enable->IndexLogicOp;
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ctx->Color.ColorLogicOpEnabled = enable->ColorLogicOp;
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ctx->Eval.Map1Color4 = enable->Map1Color4;
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ctx->Eval.Map1Index = enable->Map1Index;
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ctx->Eval.Map1Normal = enable->Map1Normal;
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ctx->Eval.Map1TextureCoord1 = enable->Map1TextureCoord1;
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ctx->Eval.Map1TextureCoord2 = enable->Map1TextureCoord2;
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ctx->Eval.Map1TextureCoord3 = enable->Map1TextureCoord3;
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ctx->Eval.Map1TextureCoord4 = enable->Map1TextureCoord4;
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ctx->Eval.Map1Vertex3 = enable->Map1Vertex3;
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ctx->Eval.Map1Vertex4 = enable->Map1Vertex4;
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ctx->Eval.Map2Color4 = enable->Map2Color4;
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ctx->Eval.Map2Index = enable->Map2Index;
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ctx->Eval.Map2Normal = enable->Map2Normal;
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ctx->Eval.Map2TextureCoord1 = enable->Map2TextureCoord1;
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ctx->Eval.Map2TextureCoord2 = enable->Map2TextureCoord2;
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ctx->Eval.Map2TextureCoord3 = enable->Map2TextureCoord3;
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ctx->Eval.Map2TextureCoord4 = enable->Map2TextureCoord4;
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ctx->Eval.Map2Vertex3 = enable->Map2Vertex3;
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ctx->Eval.Map2Vertex4 = enable->Map2Vertex4;
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ctx->Transform.Normalize = enable->Normalize;
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ctx->Point.SmoothFlag = enable->PointSmooth;
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ctx->Polygon.OffsetPoint = enable->PolygonOffsetPoint;
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ctx->Polygon.OffsetLine = enable->PolygonOffsetLine;
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ctx->Polygon.OffsetFill = enable->PolygonOffsetFill;
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ctx->Polygon.OffsetAny = ctx->Polygon.OffsetPoint ||
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ctx->Polygon.OffsetLine ||
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ctx->Polygon.OffsetFill;
|
|
ctx->Polygon.SmoothFlag = enable->PolygonSmooth;
|
|
ctx->Polygon.StippleFlag = enable->PolygonStipple;
|
|
ctx->Scissor.Enabled = enable->Scissor;
|
|
ctx->Stencil.Enabled = enable->Stencil;
|
|
ctx->Texture.Enabled = enable->Texture;
|
|
ctx->Texture.TexGenEnabled = enable->TexGen;
|
|
break;
|
|
case GL_EVAL_BIT:
|
|
MEMCPY( &ctx->Eval, attr->data, sizeof(struct gl_eval_attrib) );
|
|
break;
|
|
case GL_FOG_BIT:
|
|
MEMCPY( &ctx->Fog, attr->data, sizeof(struct gl_fog_attrib) );
|
|
break;
|
|
case GL_HINT_BIT:
|
|
MEMCPY( &ctx->Hint, attr->data, sizeof(struct gl_hint_attrib) );
|
|
break;
|
|
case GL_LIGHTING_BIT:
|
|
MEMCPY( &ctx->Light, attr->data, sizeof(struct gl_light_attrib) );
|
|
break;
|
|
case GL_LINE_BIT:
|
|
MEMCPY( &ctx->Line, attr->data, sizeof(struct gl_line_attrib) );
|
|
break;
|
|
case GL_LIST_BIT:
|
|
MEMCPY( &ctx->List, attr->data, sizeof(struct gl_list_attrib) );
|
|
break;
|
|
case GL_PIXEL_MODE_BIT:
|
|
MEMCPY( &ctx->Pixel, attr->data, sizeof(struct gl_pixel_attrib) );
|
|
break;
|
|
case GL_POINT_BIT:
|
|
MEMCPY( &ctx->Point, attr->data, sizeof(struct gl_point_attrib) );
|
|
break;
|
|
case GL_POLYGON_BIT:
|
|
MEMCPY( &ctx->Polygon, attr->data,
|
|
sizeof(struct gl_polygon_attrib) );
|
|
break;
|
|
case GL_POLYGON_STIPPLE_BIT:
|
|
MEMCPY( ctx->PolygonStipple, attr->data, 32*sizeof(GLuint) );
|
|
break;
|
|
case GL_SCISSOR_BIT:
|
|
MEMCPY( &ctx->Scissor, attr->data,
|
|
sizeof(struct gl_scissor_attrib) );
|
|
break;
|
|
case GL_STENCIL_BUFFER_BIT:
|
|
MEMCPY( &ctx->Stencil, attr->data,
|
|
sizeof(struct gl_stencil_attrib) );
|
|
break;
|
|
case GL_TRANSFORM_BIT:
|
|
MEMCPY( &ctx->Transform, attr->data,
|
|
sizeof(struct gl_transform_attrib) );
|
|
break;
|
|
case GL_TEXTURE_BIT:
|
|
MEMCPY( &ctx->Texture, attr->data,
|
|
sizeof(struct gl_texture_attrib) );
|
|
break;
|
|
case GL_VIEWPORT_BIT:
|
|
MEMCPY( &ctx->Viewport, attr->data,
|
|
sizeof(struct gl_viewport_attrib) );
|
|
break;
|
|
default:
|
|
gl_problem( ctx, "Bad attrib flag in PopAttrib");
|
|
break;
|
|
}
|
|
|
|
next = attr->next;
|
|
free( (void *) attr->data );
|
|
free( (void *) attr );
|
|
attr = next;
|
|
}
|
|
|
|
ctx->NewState = NEW_ALL;
|
|
}
|
|
|
|
|
|
#define GL_CLIENT_PACK_BIT (1<<20)
|
|
#define GL_CLIENT_UNPACK_BIT (1<<21)
|
|
|
|
|
|
void gl_PushClientAttrib( GLcontext *ctx, GLbitfield mask )
|
|
{
|
|
struct gl_attrib_node *newnode;
|
|
struct gl_attrib_node *head;
|
|
|
|
if (INSIDE_BEGIN_END(ctx)) {
|
|
gl_error( ctx, GL_INVALID_OPERATION, "glPushClientAttrib" );
|
|
return;
|
|
}
|
|
|
|
if (ctx->ClientAttribStackDepth>=MAX_CLIENT_ATTRIB_STACK_DEPTH) {
|
|
gl_error( ctx, GL_STACK_OVERFLOW, "glPushClientAttrib" );
|
|
return;
|
|
}
|
|
|
|
/* Build linked list of attribute nodes which save all attribute */
|
|
/* groups specified by the mask. */
|
|
head = NULL;
|
|
|
|
if (mask & GL_CLIENT_PIXEL_STORE_BIT) {
|
|
struct gl_pixelstore_attrib *attr;
|
|
/* packing attribs */
|
|
attr = MALLOC_STRUCT( gl_pixelstore_attrib );
|
|
MEMCPY( attr, &ctx->Pack, sizeof(struct gl_pixelstore_attrib) );
|
|
newnode = new_attrib_node( GL_CLIENT_PACK_BIT );
|
|
newnode->data = attr;
|
|
newnode->next = head;
|
|
head = newnode;
|
|
/* unpacking attribs */
|
|
attr = MALLOC_STRUCT( gl_pixelstore_attrib );
|
|
MEMCPY( attr, &ctx->Unpack, sizeof(struct gl_pixelstore_attrib) );
|
|
newnode = new_attrib_node( GL_CLIENT_UNPACK_BIT );
|
|
newnode->data = attr;
|
|
newnode->next = head;
|
|
head = newnode;
|
|
}
|
|
if (mask & GL_CLIENT_VERTEX_ARRAY_BIT) {
|
|
struct gl_array_attrib *attr;
|
|
attr = MALLOC_STRUCT( gl_array_attrib );
|
|
MEMCPY( attr, &ctx->Array, sizeof(struct gl_array_attrib) );
|
|
newnode = new_attrib_node( GL_CLIENT_VERTEX_ARRAY_BIT );
|
|
newnode->data = attr;
|
|
newnode->next = head;
|
|
head = newnode;
|
|
}
|
|
|
|
/* etc... */
|
|
|
|
ctx->ClientAttribStack[ctx->ClientAttribStackDepth] = head;
|
|
ctx->ClientAttribStackDepth++;
|
|
}
|
|
|
|
|
|
|
|
|
|
void gl_PopClientAttrib( GLcontext *ctx )
|
|
{
|
|
struct gl_attrib_node *attr, *next;
|
|
|
|
if (INSIDE_BEGIN_END(ctx)) {
|
|
gl_error( ctx, GL_INVALID_OPERATION, "glPopClientAttrib" );
|
|
return;
|
|
}
|
|
|
|
if (ctx->ClientAttribStackDepth==0) {
|
|
gl_error( ctx, GL_STACK_UNDERFLOW, "glPopClientAttrib" );
|
|
return;
|
|
}
|
|
|
|
ctx->ClientAttribStackDepth--;
|
|
attr = ctx->ClientAttribStack[ctx->ClientAttribStackDepth];
|
|
|
|
while (attr) {
|
|
switch (attr->kind) {
|
|
case GL_CLIENT_PACK_BIT:
|
|
MEMCPY( &ctx->Pack, attr->data,
|
|
sizeof(struct gl_pixelstore_attrib) );
|
|
break;
|
|
case GL_CLIENT_UNPACK_BIT:
|
|
MEMCPY( &ctx->Unpack, attr->data,
|
|
sizeof(struct gl_pixelstore_attrib) );
|
|
break;
|
|
case GL_CLIENT_VERTEX_ARRAY_BIT:
|
|
MEMCPY( &ctx->Array, attr->data,
|
|
sizeof(struct gl_array_attrib) );
|
|
break;
|
|
default:
|
|
gl_problem( ctx, "Bad attrib flag in PopClientAttrib");
|
|
break;
|
|
}
|
|
|
|
next = attr->next;
|
|
free( (void *) attr->data );
|
|
free( (void *) attr );
|
|
attr = next;
|
|
}
|
|
|
|
ctx->NewState = NEW_ALL;
|
|
}
|
|
|