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/*
* SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
* Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
*
* SPDX-License-Identifier: SGI-B-2.0
*/
#include <assert.h>
#include "glxclient.h"
#include "indirect.h"
#include "indirect_vertex_array.h"
/*****************************************************************************/
#ifndef GLX_USE_APPLEGL
static void
do_enable_disable(GLenum array, GLboolean val)
{
struct glx_context *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)
{
struct glx_context *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 = malloc(sizeof(__GLXattribute));
if (sp == NULL) {
__glXSetError(gc, GL_OUT_OF_MEMORY);
return;
}
*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)
{
struct glx_context *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;
}
}
#endif
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