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/* $XFree86: xc/lib/GL/glx/renderpix.c,v 1.5 2003/09/28 20:15:04 alanh 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.
**
*/
/*
* (C) Copyright IBM Corporation 2005
* 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, sub license,
* 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 and this permission notice (including the next
* paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL
* IBM,
* AND/OR THEIR SUPPLIERS 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.
*/
#include "packrender.h"
#include "indirect.h"
/**
* Send a large image to the server. If necessary, a buffer is allocated
* to hold the unpacked data that is copied from the clients memory.
*
* \param gc Current GLX context
* \param compsize Size, in bytes, of the image portion
* \param dim Number of dimensions of the image
* \param width Width of the image
* \param height Height of the image, must be 1 for 1D images
* \param depth Depth of the image, must be 1 for 1D or 2D images
* \param format Format of the image
* \param type Data type of the image
* \param src Pointer to the image data
* \param pc Pointer to end of the command header
* \param modes Pointer to the pixel unpack data
*
* \todo
* Modify this function so that \c NULL images are sent using
* \c __glXSendLargeChunk instead of __glXSendLargeCommand. Doing this
* will eliminate the need to allocate a buffer for that case.
*
* \bugs
* The \c fastImageUnpack path, which is thankfully never used, is completely
* broken.
*/
void
__glXSendLargeImage(__GLXcontext *gc, GLint compsize, GLint dim,
GLint width, GLint height, GLint depth,
GLenum format, GLenum type, const GLvoid *src,
GLubyte *pc, GLubyte *modes)
{
if ( !gc->fastImageUnpack || (src == NULL) ) {
/* Allocate a temporary holding buffer */
GLubyte *buf = (GLubyte *) Xmalloc(compsize);
if (!buf) {
__glXSetError(gc, GL_OUT_OF_MEMORY);
return;
}
/* Apply pixel store unpack modes to copy data into buf */
if ( src != NULL ) {
(*gc->fillImage)(gc, dim, width, height, depth, format, type,
src, buf, modes);
}
else {
if ( dim < 3 ) {
(void) memcpy( modes, __glXDefaultPixelStore + 4, 20 );
}
else {
(void) memcpy( modes, __glXDefaultPixelStore + 0, 36 );
}
}
/* Send large command */
__glXSendLargeCommand(gc, gc->pc, pc - gc->pc, buf, compsize);
/* Free buffer */
Xfree((char*) buf);
} else {
/* Just send the data straight as is */
__glXSendLargeCommand(gc, gc->pc, pc - gc->pc, pc, compsize);
}
}
/************************************************************************/
/**
* Implement GLX protocol for \c glSeparableFilter2D.
*
* \bugs
* The \c fastImageUnpack path, which is thankfully never used, is completely
* broken.
*/
void __indirect_glSeparableFilter2D(GLenum target, GLenum internalformat,
GLsizei width, GLsizei height, GLenum format,
GLenum type, const GLvoid *row,
const GLvoid *column)
{
__GLX_DECLARE_VARIABLES();
GLuint compsize2, hdrlen, totalhdrlen, image1len, image2len;
__GLX_LOAD_VARIABLES();
compsize = __glImageSize(width, 1, 1, format, type, 0);
compsize2 = __glImageSize(height, 1, 1, format, type, 0);
totalhdrlen = __GLX_PAD(__GLX_CONV_FILT_CMD_HDR_SIZE);
hdrlen = __GLX_PAD(__GLX_CONV_FILT_HDR_SIZE);
image1len = __GLX_PAD(compsize);
image2len = __GLX_PAD(compsize2);
cmdlen = totalhdrlen + image1len + image2len;
if (!gc->currentDpy) return;
if (cmdlen <= gc->maxSmallRenderCommandSize) {
/* Use GLXRender protocol to send small command */
__GLX_BEGIN_VARIABLE_WITH_PIXEL(X_GLrop_SeparableFilter2D, cmdlen);
__GLX_PUT_LONG(0,target);
__GLX_PUT_LONG(4,internalformat);
__GLX_PUT_LONG(8,width);
__GLX_PUT_LONG(12,height);
__GLX_PUT_LONG(16,format);
__GLX_PUT_LONG(20,type);
pc += hdrlen;
if (compsize > 0) {
(*gc->fillImage)(gc, 1, width, 1, 1, format, type,
row, pc, pixelHeaderPC);
pc += image1len;
}
if (compsize2 > 0) {
(*gc->fillImage)(gc, 1, height, 1, 1, format, type,
column, pc, NULL);
pc += image2len;
}
if ((compsize == 0) && (compsize2 == 0)) {
/* Setup default store modes */
(void) memcpy( pixelHeaderPC, __glXDefaultPixelStore + 4, 20 );
}
__GLX_END(0);
} else {
const GLint bufsize = image1len + image2len;
/* Use GLXRenderLarge protocol to send command */
__GLX_BEGIN_VARIABLE_LARGE_WITH_PIXEL(X_GLrop_SeparableFilter2D,cmdlen+4);
__GLX_PUT_LONG(0,target);
__GLX_PUT_LONG(4,internalformat);
__GLX_PUT_LONG(8,width);
__GLX_PUT_LONG(12,height);
__GLX_PUT_LONG(16,format);
__GLX_PUT_LONG(20,type);
pc += hdrlen;
if (!gc->fastImageUnpack) {
/* Allocate a temporary holding buffer */
GLubyte *buf = (GLubyte *) Xmalloc(bufsize);
if (!buf) {
__glXSetError(gc, GL_OUT_OF_MEMORY);
return;
}
(*gc->fillImage)(gc, 1, width, 1, 1, format, type, row, buf, pixelHeaderPC);
(*gc->fillImage)(gc, 1, height, 1, 1, format, type, column,
buf + image1len, pixelHeaderPC);
/* Send large command */
__glXSendLargeCommand(gc, gc->pc, (GLint)(pc - gc->pc), buf, bufsize);
/* Free buffer */
Xfree((char*) buf);
} else {
/* Just send the data straight as is */
__glXSendLargeCommand(gc, gc->pc, (GLint)(pc - gc->pc), pc, bufsize);
}
}
}
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