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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);
+ }
+ }
+}