/*
* SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
* Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice including the dates of first publication and
* either this permission notice or a reference to
* http://oss.sgi.com/projects/FreeB/
* shall be included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Except as contained in this notice, the name of Silicon Graphics, Inc.
* shall not be used in advertising or otherwise to promote the sale, use or
* other dealings in this Software without prior written authorization from
* Silicon Graphics, Inc.
*/
#include "glxclient.h"
#include "indirect.h"
#if !defined(__GNUC__)
# define __builtin_expect(x, y) x
#endif
/**
* Send glPixelStore command to the server
*
* \param gc Current GLX context
* \param sop Either \c X_GLsop_PixelStoref or \c X_GLsop_PixelStorei
* \param pname Selector of which pixel parameter is to be set.
* \param param Value that \c pname is set to.
*
* \sa __indirect_glPixelStorei, __indirect_glPixelStoref
*/
static void
send_PixelStore(struct glx_context * gc, unsigned sop, GLenum pname,
const void *param)
{
Display *const dpy = gc->currentDpy;
const GLuint cmdlen = 8;
if (__builtin_expect(dpy != NULL, 1)) {
GLubyte const *pc = __glXSetupSingleRequest(gc, sop, cmdlen);
(void) memcpy((void *) (pc + 0), (void *) (&pname), 4);
(void) memcpy((void *) (pc + 4), param, 4);
UnlockDisplay(dpy);
SyncHandle();
}
return;
}
/*
** Specify parameters that control the storage format of pixel arrays.
*/
void
__indirect_glPixelStoref(GLenum pname, GLfloat param)
{
struct glx_context *gc = __glXGetCurrentContext();
__GLXattribute *state = gc->client_state_private;
Display *dpy = gc->currentDpy;
GLuint a;
if (!dpy)
return;
switch (pname) {
case GL_PACK_ROW_LENGTH:
a = (GLuint) (param + 0.5);
if (((GLint) a) < 0) {
__glXSetError(gc, GL_INVALID_VALUE);
return;
}
state->storePack.rowLength = a;
break;
case GL_PACK_IMAGE_HEIGHT:
a = (GLuint) (param + 0.5);
if (((GLint) a) < 0) {
__glXSetError(gc, GL_INVALID_VALUE);
return;
}
state->storePack.imageHeight = a;
break;
case GL_PACK_SKIP_ROWS:
a = (GLuint) (param + 0.5);
if (((GLint) a) < 0) {
__glXSetError(gc, GL_INVALID_VALUE);
return;
}
state->storePack.skipRows = a;
break;
case GL_PACK_SKIP_PIXELS:
a = (GLuint) (param + 0.5);
if (((GLint) a) < 0) {
__glXSetError(gc, GL_INVALID_VALUE);
return;
}
state->storePack.skipPixels = a;
break;
case GL_PACK_SKIP_IMAGES:
a = (GLuint) (param + 0.5);
if (((GLint) a) < 0) {
__glXSetError(gc, GL_INVALID_VALUE);
return;
}
state->storePack.skipImages = a;
break;
case GL_PACK_ALIGNMENT:
a = (GLint) (param + 0.5);
switch (a) {
case 1:
case 2:
case 4:
case 8:
state->storePack.alignment = a;
break;
default:
__glXSetError(gc, GL_INVALID_VALUE);
return;
}
break;
case GL_PACK_SWAP_BYTES:
state->storePack.swapEndian = (param != 0);
break;
case GL_PACK_LSB_FIRST:
state->storePack.lsbFirst = (param != 0);
break;
case GL_UNPACK_ROW_LENGTH:
a = (GLuint) (param + 0.5);
if (((GLint) a) < 0) {
__glXSetError(gc, GL_INVALID_VALUE);
return;
}
state->storeUnpack.rowLength = a;
break;
case GL_UNPACK_IMAGE_HEIGHT:
a = (GLuint) (param + 0.5);
if (((GLint) a) < 0) {
__glXSetError(gc, GL_INVALID_VALUE);
return;
}
state->storeUnpack.imageHeight = a;
break;
case GL_UNPACK_SKIP_ROWS:
a = (GLuint) (param + 0.5);
if (((GLint) a) < 0) {
__glXSetError(gc, GL_INVALID_VALUE);
return;
}
state->storeUnpack.skipRows = a;
break;
case GL_UNPACK_SKIP_PIXELS:
a = (GLuint) (param + 0.5);
if (((GLint) a) < 0) {
__glXSetError(gc, GL_INVALID_VALUE);
return;
}
state->storeUnpack.skipPixels = a;
break;
case GL_UNPACK_SKIP_IMAGES:
a = (GLuint) (param + 0.5);
if (((GLint) a) < 0) {
__glXSetError(gc, GL_INVALID_VALUE);
return;
}
state->storeUnpack.skipImages = a;
break;
case GL_UNPACK_ALIGNMENT:
a = (GLint) (param + 0.5);
switch (a) {
case 1:
case 2:
case 4:
case 8:
state->storeUnpack.alignment = a;
break;
default:
__glXSetError(gc, GL_INVALID_VALUE);
return;
}
break;
case GL_UNPACK_SWAP_BYTES:
state->storeUnpack.swapEndian = (param != 0);
break;
case GL_UNPACK_LSB_FIRST:
state->storeUnpack.lsbFirst = (param != 0);
break;
/* Group all of the pixel store modes that need to be sent to the
* server here. Care must be used to only send modes to the server that
* won't affect the size of the data sent to or received from the
* server. GL_PACK_INVERT_MESA is safe in this respect, but other,
* future modes may not be.
*/
case GL_PACK_INVERT_MESA:
send_PixelStore(gc, X_GLsop_PixelStoref, pname, ¶m);
break;
default:
__glXSetError(gc, GL_INVALID_ENUM);
break;
}
}
void
__indirect_glPixelStorei(GLenum pname, GLint param)
{
struct glx_context *gc = __glXGetCurrentContext();
__GLXattribute *state = gc->client_state_private;
Display *dpy = gc->currentDpy;
if (!dpy)
return;
switch (pname) {
case GL_PACK_ROW_LENGTH:
if (param < 0) {
__glXSetError(gc, GL_INVALID_VALUE);
return;
}
state->storePack.rowLength = param;
break;
case GL_PACK_IMAGE_HEIGHT:
if (param < 0) {
__glXSetError(gc, GL_INVALID_VALUE);
return;
}
state->storePack.imageHeight = param;
break;
case GL_PACK_SKIP_ROWS:
if (param < 0) {
__glXSetError(gc, GL_INVALID_VALUE);
return;
}
state->storePack.skipRows = param;
break;
case GL_PACK_SKIP_PIXELS:
if (param < 0) {
__glXSetError(gc, GL_INVALID_VALUE);
return;
}
state->storePack.skipPixels = param;
break;
case GL_PACK_SKIP_IMAGES:
if (param < 0) {
__glXSetError(gc, GL_INVALID_VALUE);
return;
}
state->storePack.skipImages = param;
break;
case GL_PACK_ALIGNMENT:
switch (param) {
case 1:
case 2:
case 4:
case 8:
state->storePack.alignment = param;
break;
default:
__glXSetError(gc, GL_INVALID_VALUE);
return;
}
break;
case GL_PACK_SWAP_BYTES:
state->storePack.swapEndian = (param != 0);
break;
case GL_PACK_LSB_FIRST:
state->storePack.lsbFirst = (param != 0);
break;
case GL_UNPACK_ROW_LENGTH:
if (param < 0) {
__glXSetError(gc, GL_INVALID_VALUE);
return;
}
state->storeUnpack.rowLength = param;
break;
case GL_UNPACK_IMAGE_HEIGHT:
if (param < 0) {
__glXSetError(gc, GL_INVALID_VALUE);
return;
}
state->storeUnpack.imageHeight = param;
break;
case GL_UNPACK_SKIP_ROWS:
if (param < 0) {
__glXSetError(gc, GL_INVALID_VALUE);
return;
}
state->storeUnpack.skipRows = param;
break;
case GL_UNPACK_SKIP_PIXELS:
if (param < 0) {
__glXSetError(gc, GL_INVALID_VALUE);
return;
}
state->storeUnpack.skipPixels = param;
break;
case GL_UNPACK_SKIP_IMAGES:
if (param < 0) {
__glXSetError(gc, GL_INVALID_VALUE);
return;
}
state->storeUnpack.skipImages = param;
break;
case GL_UNPACK_ALIGNMENT:
switch (param) {
case 1:
case 2:
case 4:
case 8:
state->storeUnpack.alignment = param;
break;
default:
__glXSetError(gc, GL_INVALID_VALUE);
return;
}
break;
case GL_UNPACK_SWAP_BYTES:
state->storeUnpack.swapEndian = (param != 0);
break;
case GL_UNPACK_LSB_FIRST:
state->storeUnpack.lsbFirst = (param != 0);
break;
/* Group all of the pixel store modes that need to be sent to the
* server here. Care must be used to only send modes to the server that
* won't affect the size of the data sent to or received from the
* server. GL_PACK_INVERT_MESA is safe in this respect, but other,
* future modes may not be.
*/
case GL_PACK_INVERT_MESA:
send_PixelStore(gc, X_GLsop_PixelStorei, pname, ¶m);
break;
default:
__glXSetError(gc, GL_INVALID_ENUM);
break;
}
}