132 lines
4.0 KiB
C
132 lines
4.0 KiB
C
/*
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* SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
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* Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice including the dates of first publication and
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* either this permission notice or a reference to
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* http://oss.sgi.com/projects/FreeB/
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* shall be included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
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* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* Except as contained in this notice, the name of Silicon Graphics, Inc.
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* shall not be used in advertising or otherwise to promote the sale, use or
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* other dealings in this Software without prior written authorization from
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* Silicon Graphics, Inc.
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*/
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#include <assert.h>
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#include "glxclient.h"
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#include "indirect.h"
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#include "indirect_vertex_array.h"
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/*****************************************************************************/
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#ifndef GLX_USE_APPLEGL
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static void
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do_enable_disable(GLenum array, GLboolean val)
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{
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struct glx_context *gc = __glXGetCurrentContext();
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__GLXattribute *state = (__GLXattribute *) (gc->client_state_private);
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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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if (!__glXSetArrayEnable(state, array, index, val)) {
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__glXSetError(gc, GL_INVALID_ENUM);
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}
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}
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void
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__indirect_glEnableClientState(GLenum array)
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{
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do_enable_disable(array, GL_TRUE);
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}
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void
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__indirect_glDisableClientState(GLenum array)
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{
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do_enable_disable(array, GL_FALSE);
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}
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/************************************************************************/
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void
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__indirect_glPushClientAttrib(GLuint mask)
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{
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struct glx_context *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 = malloc(sizeof(__GLXattribute));
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if (sp == NULL) {
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__glXSetError(gc, GL_OUT_OF_MEMORY);
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return;
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}
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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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}
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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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void
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__indirect_glPopClientAttrib(void)
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{
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struct glx_context *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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__glXPopArrayState(state);
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}
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sp->mask = 0;
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}
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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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#endif
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