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/* $XFree86: xc/lib/GL/glx/singlepix.c,v 1.3 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 "packsingle.h"
#include "indirect.h"
#include "dispatch.h"
#include "glapi.h"
#include "glthread.h"
#include "glapioffsets.h"
#include <GL/glxproto.h>
void __indirect_glGetSeparableFilter(GLenum target, GLenum format, GLenum type,
GLvoid *row, GLvoid *column, GLvoid *span)
{
__GLX_SINGLE_DECLARE_VARIABLES();
const __GLXattribute * state;
xGLXGetSeparableFilterReply reply;
GLubyte *rowBuf, *colBuf;
if (!dpy) return;
__GLX_SINGLE_LOAD_VARIABLES();
state = gc->client_state_private;
/* Send request */
__GLX_SINGLE_BEGIN(X_GLsop_GetSeparableFilter, __GLX_PAD(13));
__GLX_SINGLE_PUT_LONG(0,target);
__GLX_SINGLE_PUT_LONG(4,format);
__GLX_SINGLE_PUT_LONG(8,type);
__GLX_SINGLE_PUT_CHAR(12,state->storePack.swapEndian);
__GLX_SINGLE_READ_XREPLY();
compsize = reply.length << 2;
if (compsize != 0) {
GLint width, height;
GLint widthsize, heightsize;
width = reply.width;
height = reply.height;
widthsize = __glImageSize(width,1,1,format, type, 0);
heightsize = __glImageSize(height,1,1,format, type, 0);
/* Allocate a holding buffer to transform the data from */
rowBuf = (GLubyte*) Xmalloc(widthsize);
if (!rowBuf) {
/* Throw data away */
_XEatData(dpy, compsize);
__glXSetError(gc, GL_OUT_OF_MEMORY);
UnlockDisplay(dpy);
SyncHandle();
return;
} else {
__GLX_SINGLE_GET_CHAR_ARRAY(((char*)rowBuf),widthsize);
__glEmptyImage(gc, 1, width, 1, 1, format, type, rowBuf, row);
Xfree((char*) rowBuf);
}
colBuf = (GLubyte*) Xmalloc(heightsize);
if (!colBuf) {
/* Throw data away */
_XEatData(dpy, compsize - __GLX_PAD(widthsize));
__glXSetError(gc, GL_OUT_OF_MEMORY);
UnlockDisplay(dpy);
SyncHandle();
return;
} else {
__GLX_SINGLE_GET_CHAR_ARRAY(((char*)colBuf),heightsize);
__glEmptyImage(gc, 1, height, 1, 1, format, type, colBuf, column);
Xfree((char*) colBuf);
}
} else {
/*
** don't modify user's buffer.
*/
}
__GLX_SINGLE_END();
}
#define CONCAT(a,b) a ## b
#define NAME(o) CONCAT(gl_dispatch_stub_, o)
void NAME(_gloffset_GetSeparableFilter)(GLenum target, GLenum format, GLenum type,
GLvoid *row, GLvoid *column, GLvoid *span)
{
__GLXcontext * const gc = __glXGetCurrentContext();
if (gc->isDirect) {
CALL_GetSeparableFilter(GET_DISPATCH(),
(target, format, type, row, column, span));
return;
}
else {
Display *const dpy = gc->currentDpy;
const GLuint cmdlen = __GLX_PAD(13);
if (dpy != NULL) {
const __GLXattribute * const state = gc->client_state_private;
xGLXGetSeparableFilterReply reply;
GLubyte const *pc =
__glXSetupVendorRequest(gc, X_GLXVendorPrivateWithReply,
X_GLvop_GetSeparableFilterEXT, cmdlen);
unsigned compsize;
(void) memcpy((void *) (pc + 0), (void *) (&target), 4);
(void) memcpy((void *) (pc + 4), (void *) (&format), 4);
(void) memcpy((void *) (pc + 8), (void *) (&type), 4);
*(int8_t *) (pc + 12) = state->storePack.swapEndian;
(void) _XReply(dpy, (xReply *) & reply, 0, False);
compsize = reply.length << 2;
if (compsize != 0) {
const GLint width = reply.width;
const GLint height = reply.height;
const GLint widthsize =
__glImageSize(width, 1, 1, format, type, 0);
const GLint heightsize =
__glImageSize(height, 1, 1, format, type, 0);
GLubyte * const buf =
(GLubyte*) Xmalloc((widthsize > heightsize) ? widthsize : heightsize);
if (buf == NULL) {
/* Throw data away */
_XEatData(dpy, compsize);
__glXSetError(gc, GL_OUT_OF_MEMORY);
UnlockDisplay(dpy);
SyncHandle();
return;
} else {
int extra;
extra = 4 - (widthsize & 3);
_XRead(dpy, (char *)buf, widthsize);
if (extra < 4) {
_XEatData(dpy, extra);
}
__glEmptyImage(gc, 1, width, 1, 1, format, type, buf,
row);
extra = 4 - (heightsize & 3);
_XRead(dpy, (char *)buf, heightsize);
if (extra < 4) {
_XEatData(dpy, extra);
}
__glEmptyImage(gc, 1, height, 1, 1, format, type, buf,
column);
Xfree((char*) buf);
}
}
}
}
}
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