2004-10-25 22:09:16 +01:00
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/* $XFree86: xc/lib/GL/glx/pixelstore.c,v 1.4 2004/01/28 18:11:43 alanh Exp $ */
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/*
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** License Applicability. Except to the extent portions of this file are
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** made subject to an alternative license as permitted in the SGI Free
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** Software License B, Version 1.1 (the "License"), the contents of this
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** file are subject only to the provisions of the License. You may not use
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** this file except in compliance with the License. You may obtain a copy
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** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
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** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
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**
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** http://oss.sgi.com/projects/FreeB
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**
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** Note that, as provided in the License, the Software is distributed on an
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** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
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** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
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** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
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** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
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**
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** Original Code. The Original Code is: OpenGL Sample Implementation,
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** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
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** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
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** Copyright in any portions created by third parties is as indicated
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** elsewhere herein. All Rights Reserved.
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**
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** Additional Notice Provisions: The application programming interfaces
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** established by SGI in conjunction with the Original Code are The
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** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
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** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
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** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
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** Window System(R) (Version 1.3), released October 19, 1998. This software
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** was created using the OpenGL(R) version 1.2.1 Sample Implementation
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** published by SGI, but has not been independently verified as being
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** compliant with the OpenGL(R) version 1.2.1 Specification.
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**
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*/
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#include "glxclient.h"
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/*
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** Specify parameters that control the storage format of pixel arrays.
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*/
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2004-12-01 08:02:50 +00:00
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void __indirect_glPixelStoref(GLenum pname, GLfloat param)
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2004-10-25 22:09:16 +01:00
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{
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__GLXcontext *gc = __glXGetCurrentContext();
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__GLXattribute * state = gc->client_state_private;
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Display *dpy = gc->currentDpy;
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GLuint a;
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if (!dpy) return;
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switch (pname) {
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case GL_PACK_ROW_LENGTH:
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a = (GLuint) (param + 0.5);
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if (((GLint) a) < 0) {
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__glXSetError(gc, GL_INVALID_VALUE);
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return;
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}
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state->storePack.rowLength = a;
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break;
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case GL_PACK_IMAGE_HEIGHT:
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a = (GLuint) (param + 0.5);
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if (((GLint) a) < 0) {
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__glXSetError(gc, GL_INVALID_VALUE);
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return;
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}
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state->storePack.imageHeight = a;
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break;
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case GL_PACK_SKIP_ROWS:
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a = (GLuint) (param + 0.5);
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if (((GLint) a) < 0) {
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__glXSetError(gc, GL_INVALID_VALUE);
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return;
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}
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state->storePack.skipRows = a;
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break;
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case GL_PACK_SKIP_PIXELS:
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a = (GLuint) (param + 0.5);
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if (((GLint) a) < 0) {
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__glXSetError(gc, GL_INVALID_VALUE);
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return;
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}
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state->storePack.skipPixels = a;
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break;
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case GL_PACK_SKIP_IMAGES:
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a = (GLuint) (param + 0.5);
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if (((GLint) a) < 0) {
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__glXSetError(gc, GL_INVALID_VALUE);
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return;
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}
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state->storePack.skipImages = a;
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break;
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case GL_PACK_ALIGNMENT:
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a = (GLint) (param + 0.5);
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switch (a) {
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case 1: case 2: case 4: case 8:
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state->storePack.alignment = a;
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break;
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default:
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__glXSetError(gc, GL_INVALID_VALUE);
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return;
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}
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break;
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case GL_PACK_SWAP_BYTES:
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state->storePack.swapEndian = (param != 0);
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break;
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case GL_PACK_LSB_FIRST:
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state->storePack.lsbFirst = (param != 0);
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break;
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case GL_UNPACK_ROW_LENGTH:
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a = (GLuint) (param + 0.5);
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if (((GLint) a) < 0) {
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__glXSetError(gc, GL_INVALID_VALUE);
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return;
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}
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state->storeUnpack.rowLength = a;
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break;
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case GL_UNPACK_IMAGE_HEIGHT:
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a = (GLuint) (param + 0.5);
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if (((GLint) a) < 0) {
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__glXSetError(gc, GL_INVALID_VALUE);
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return;
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}
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state->storeUnpack.imageHeight = a;
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break;
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case GL_UNPACK_SKIP_ROWS:
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a = (GLuint) (param + 0.5);
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if (((GLint) a) < 0) {
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__glXSetError(gc, GL_INVALID_VALUE);
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return;
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}
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state->storeUnpack.skipRows = a;
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break;
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case GL_UNPACK_SKIP_PIXELS:
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a = (GLuint) (param + 0.5);
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if (((GLint) a) < 0) {
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__glXSetError(gc, GL_INVALID_VALUE);
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return;
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}
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state->storeUnpack.skipPixels = a;
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break;
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case GL_UNPACK_SKIP_IMAGES:
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a = (GLuint) (param + 0.5);
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if (((GLint) a) < 0) {
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__glXSetError(gc, GL_INVALID_VALUE);
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return;
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}
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state->storeUnpack.skipImages = a;
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break;
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case GL_UNPACK_ALIGNMENT:
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a = (GLint) (param + 0.5);
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switch (a) {
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case 1: case 2: case 4: case 8:
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state->storeUnpack.alignment = a;
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break;
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default:
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__glXSetError(gc, GL_INVALID_VALUE);
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return;
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}
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break;
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case GL_UNPACK_SWAP_BYTES:
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state->storeUnpack.swapEndian = (param != 0);
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break;
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case GL_UNPACK_LSB_FIRST:
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state->storeUnpack.lsbFirst = (param != 0);
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break;
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default:
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/*
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** NOTE: there are currently no pixel storage commands that need to
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** be sent to the server. This may change in future versions
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** of the API, however.
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*/
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__glXSetError(gc, GL_INVALID_ENUM);
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break;
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}
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}
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2004-12-01 08:02:50 +00:00
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void __indirect_glPixelStorei(GLenum pname, GLint param)
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2004-10-25 22:09:16 +01:00
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{
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__GLXcontext *gc = __glXGetCurrentContext();
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__GLXattribute * state = gc->client_state_private;
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Display *dpy = gc->currentDpy;
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if (!dpy) return;
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switch (pname) {
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case GL_PACK_ROW_LENGTH:
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if (param < 0) {
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__glXSetError(gc, GL_INVALID_VALUE);
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return;
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}
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state->storePack.rowLength = param;
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break;
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case GL_PACK_IMAGE_HEIGHT:
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if (param < 0) {
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__glXSetError(gc, GL_INVALID_VALUE);
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return;
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}
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state->storePack.imageHeight = param;
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break;
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case GL_PACK_SKIP_ROWS:
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if (param < 0) {
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__glXSetError(gc, GL_INVALID_VALUE);
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return;
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}
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state->storePack.skipRows = param;
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break;
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case GL_PACK_SKIP_PIXELS:
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if (param < 0) {
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__glXSetError(gc, GL_INVALID_VALUE);
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return;
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}
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state->storePack.skipPixels = param;
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break;
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case GL_PACK_SKIP_IMAGES:
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if (param < 0) {
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__glXSetError(gc, GL_INVALID_VALUE);
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return;
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}
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state->storePack.skipImages = param;
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break;
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case GL_PACK_ALIGNMENT:
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switch (param) {
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case 1: case 2: case 4: case 8:
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state->storePack.alignment = param;
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break;
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default:
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__glXSetError(gc, GL_INVALID_VALUE);
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return;
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}
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break;
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case GL_PACK_SWAP_BYTES:
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state->storePack.swapEndian = (param != 0);
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break;
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case GL_PACK_LSB_FIRST:
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state->storePack.lsbFirst = (param != 0);
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break;
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case GL_UNPACK_ROW_LENGTH:
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if (param < 0) {
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__glXSetError(gc, GL_INVALID_VALUE);
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return;
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}
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state->storeUnpack.rowLength = param;
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break;
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case GL_UNPACK_IMAGE_HEIGHT:
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if (param < 0) {
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__glXSetError(gc, GL_INVALID_VALUE);
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return;
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}
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state->storeUnpack.imageHeight = param;
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break;
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case GL_UNPACK_SKIP_ROWS:
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if (param < 0) {
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__glXSetError(gc, GL_INVALID_VALUE);
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return;
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}
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state->storeUnpack.skipRows = param;
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break;
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case GL_UNPACK_SKIP_PIXELS:
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if (param < 0) {
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__glXSetError(gc, GL_INVALID_VALUE);
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return;
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}
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state->storeUnpack.skipPixels = param;
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break;
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case GL_UNPACK_SKIP_IMAGES:
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if (param < 0) {
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__glXSetError(gc, GL_INVALID_VALUE);
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return;
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}
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state->storeUnpack.skipImages = param;
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break;
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case GL_UNPACK_ALIGNMENT:
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switch (param) {
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case 1: case 2: case 4: case 8:
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state->storeUnpack.alignment = param;
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break;
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default:
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__glXSetError(gc, GL_INVALID_VALUE);
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return;
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}
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break;
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case GL_UNPACK_SWAP_BYTES:
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state->storeUnpack.swapEndian = (param != 0);
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break;
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case GL_UNPACK_LSB_FIRST:
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state->storeUnpack.lsbFirst = (param != 0);
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break;
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default:
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/*
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** NOTE: there are currently no pixel storage commands that need to
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** be sent to the server. This may change in future versions
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** of the API, however.
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*/
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__glXSetError(gc, GL_INVALID_ENUM);
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break;
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}
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}
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