mirror of https://gitlab.freedesktop.org/mesa/mesa
109 lines
2.7 KiB
C
109 lines
2.7 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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* SPDX-License-Identifier: SGI-B-2.0
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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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#if !defined(GLX_USE_APPLEGL) || defined(GLX_USE_APPLE)
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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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