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-rw-r--r--src/glx/x11/singlepix.c415
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diff --git a/src/glx/x11/singlepix.c b/src/glx/x11/singlepix.c
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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"
+
+void glReadPixels(GLint x, GLint y, GLsizei width, GLsizei height,
+ GLenum format, GLenum type, GLvoid *pixels)
+{
+ __GLX_SINGLE_DECLARE_VARIABLES();
+ const __GLXattribute * state;
+ xGLXReadPixelsReply reply;
+ GLubyte *buf;
+
+ if (!dpy) return;
+ __GLX_SINGLE_LOAD_VARIABLES();
+ state = gc->client_state_private;
+
+ /* Send request */
+ __GLX_SINGLE_BEGIN(X_GLsop_ReadPixels,__GLX_PAD(26));
+ __GLX_SINGLE_PUT_LONG(0,x);
+ __GLX_SINGLE_PUT_LONG(4,y);
+ __GLX_SINGLE_PUT_LONG(8,width);
+ __GLX_SINGLE_PUT_LONG(12,height);
+ __GLX_SINGLE_PUT_LONG(16,format);
+ __GLX_SINGLE_PUT_LONG(20,type);
+ __GLX_SINGLE_PUT_CHAR(24,state->storePack.swapEndian);
+ __GLX_SINGLE_PUT_CHAR(25,GL_FALSE);
+ __GLX_SINGLE_READ_XREPLY();
+ compsize = reply.length << 2;
+
+ if (compsize != 0) {
+ /* Allocate a holding buffer to transform the data from */
+ buf = (GLubyte*) Xmalloc(compsize);
+ if (!buf) {
+ /* Throw data away */
+ _XEatData(dpy, compsize);
+ __glXSetError(gc, GL_OUT_OF_MEMORY);
+ } else {
+ /*
+ ** Fetch data into holding buffer. Apply pixel store pack modes
+ ** to put data back into client memory
+ */
+ __GLX_SINGLE_GET_CHAR_ARRAY(buf,compsize);
+ __glEmptyImage(gc, 2, width, height, 1, format, type, buf, pixels);
+ Xfree((char*) buf);
+ }
+ } else {
+ /*
+ ** GL error occurred; don't modify user's buffer.
+ */
+ }
+ __GLX_SINGLE_END();
+}
+
+void glGetTexImage(GLenum target, GLint level, GLenum format, GLenum type,
+ GLvoid *texels)
+{
+ __GLX_SINGLE_DECLARE_VARIABLES();
+ const __GLXattribute * state;
+ xGLXGetTexImageReply reply;
+ GLubyte *buf;
+
+ if (!dpy) return;
+ __GLX_SINGLE_LOAD_VARIABLES();
+ state = gc->client_state_private;
+
+ /* Send request */
+ __GLX_SINGLE_BEGIN(X_GLsop_GetTexImage,__GLX_PAD(17));
+ __GLX_SINGLE_PUT_LONG(0,target);
+ __GLX_SINGLE_PUT_LONG(4,level);
+ __GLX_SINGLE_PUT_LONG(8,format);
+ __GLX_SINGLE_PUT_LONG(12,type);
+ __GLX_SINGLE_PUT_CHAR(16,state->storePack.swapEndian);
+ __GLX_SINGLE_READ_XREPLY();
+ compsize = reply.length << 2;
+
+ if (compsize != 0) {
+ /* Allocate a holding buffer to transform the data from */
+ buf = (GLubyte*) Xmalloc(compsize);
+ if (!buf) {
+ /* Throw data away */
+ _XEatData(dpy, compsize);
+ __glXSetError(gc, GL_OUT_OF_MEMORY);
+ } else {
+ GLint width, height, depth;
+
+ /*
+ ** Fetch data into holding buffer. Apply pixel store pack modes
+ ** to put data back into client memory
+ */
+ width = reply.width;
+ height = reply.height;
+ depth = reply.depth;
+ __GLX_SINGLE_GET_CHAR_ARRAY(buf,compsize);
+ __glEmptyImage(gc, 2, width, height, depth, format, type, buf,
+ texels);
+ Xfree((char*) buf);
+ }
+ } else {
+ /*
+ ** GL error occured, don't modify user's buffer.
+ */
+ }
+ __GLX_SINGLE_END();
+}
+
+void glGetPolygonStipple(GLubyte *mask)
+{
+ __GLX_SINGLE_DECLARE_VARIABLES();
+ xGLXSingleReply reply;
+ GLubyte buf[128];
+
+ if (!dpy) return;
+
+ __GLX_SINGLE_LOAD_VARIABLES();
+ __GLX_SINGLE_BEGIN(X_GLsop_GetPolygonStipple,__GLX_PAD(1));
+ __GLX_SINGLE_PUT_CHAR(0,GL_FALSE);
+ __GLX_SINGLE_READ_XREPLY();
+ if (reply.length == 32) {
+ __GLX_SINGLE_GET_CHAR_ARRAY(buf,128);
+ __glEmptyImage(gc, 2, 32, 32, 1, GL_COLOR_INDEX, GL_BITMAP, buf, mask);
+ }
+ __GLX_SINGLE_END();
+}
+
+void glGetColorTable(GLenum target, GLenum format, GLenum type, GLvoid *table)
+{
+ __GLX_SINGLE_DECLARE_VARIABLES();
+ const __GLXattribute * state;
+ xGLXGetColorTableReply reply;
+ GLubyte *buf;
+
+ if (!dpy) return;
+ __GLX_SINGLE_LOAD_VARIABLES();
+ state = gc->client_state_private;
+
+ /* Send request */
+ __GLX_SINGLE_BEGIN(X_GLsop_GetColorTable,__GLX_PAD(13));
+ __GLX_SINGLE_PUT_LONG(0,(long)target);
+ __GLX_SINGLE_PUT_LONG(4,(long)format);
+ __GLX_SINGLE_PUT_LONG(8,(long)type);
+ __GLX_SINGLE_PUT_CHAR(12,state->storePack.swapEndian);
+ __GLX_SINGLE_READ_XREPLY();
+ compsize = (long)reply.length << 2;
+
+ if (compsize != 0) {
+ /* Allocate a holding buffer to transform the data from */
+ buf = (GLubyte*)Xmalloc(compsize);
+ if (!buf) {
+ /* Throw data away */
+ _XEatData(dpy, compsize);
+ __glXSetError(gc, GL_OUT_OF_MEMORY);
+ } else {
+ GLint width;
+
+ /*
+ ** Fetch data into holding buffer. Apply pixel store pack modes
+ ** to put data back into client memory
+ */
+ width = (int)reply.width;
+ __GLX_SINGLE_GET_CHAR_ARRAY(((char*)buf),(long)compsize);
+ __glEmptyImage(gc, 1, width, 1, 1, format, type, buf, table);
+ Xfree((char*) buf);
+ }
+ } else {
+ /*
+ ** GL error occured, don't modify user's buffer.
+ */
+ }
+ __GLX_SINGLE_END();
+}
+
+void glGetConvolutionFilter(GLenum target, GLenum format, GLenum type,
+ GLvoid *image)
+{
+ __GLX_SINGLE_DECLARE_VARIABLES();
+ const __GLXattribute * state;
+ xGLXGetConvolutionFilterReply reply;
+ GLubyte *buf;
+
+ if (!dpy) return;
+ __GLX_SINGLE_LOAD_VARIABLES();
+ state = gc->client_state_private;
+
+ /* Send request */
+ __GLX_SINGLE_BEGIN(X_GLsop_GetConvolutionFilter, __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) {
+ /* Allocate a holding buffer to transform the data from */
+ buf = (GLubyte*) Xmalloc(compsize);
+ if (!buf) {
+ /* Throw data away */
+ _XEatData(dpy, compsize);
+ __glXSetError(gc, GL_OUT_OF_MEMORY);
+ } else {
+ GLint width, height;
+
+ /*
+ ** Fetch data into holding buffer. Apply pixel store pack modes
+ ** to put data back into client memory
+ */
+ width = reply.width;
+ height = reply.height;
+ __GLX_SINGLE_GET_CHAR_ARRAY(((char*)buf),compsize);
+ __glEmptyImage(gc, 2, width, height, 1, format, type, buf, image);
+ Xfree((char*) buf);
+ }
+ } else {
+ /*
+ ** GL error occured, don't modify user's buffer.
+ */
+ }
+ __GLX_SINGLE_END();
+}
+
+void 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);
+ heightsize = __glImageSize(height,1,1,format, type);
+
+ /* 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();
+
+}
+
+void glGetHistogram(GLenum target, GLboolean reset, GLenum format,
+ GLenum type, GLvoid *values)
+{
+ __GLX_SINGLE_DECLARE_VARIABLES();
+ const __GLXattribute * state;
+ xGLXGetHistogramReply reply;
+ GLubyte *buf;
+
+ if (!dpy) return;
+ __GLX_SINGLE_LOAD_VARIABLES();
+ state = gc->client_state_private;
+
+ /* Send request */
+ __GLX_SINGLE_BEGIN(X_GLsop_GetHistogram,__GLX_PAD(14));
+ __GLX_SINGLE_PUT_LONG(0,(long)target);
+ __GLX_SINGLE_PUT_LONG(4,(long)format);
+ __GLX_SINGLE_PUT_LONG(8,(long)type);
+ __GLX_SINGLE_PUT_CHAR(12,state->storePack.swapEndian);
+ __GLX_SINGLE_PUT_CHAR(13,reset);
+ __GLX_SINGLE_READ_XREPLY();
+ compsize = (long)reply.length << 2;
+
+ if (compsize != 0) {
+ /* Allocate a holding buffer to transform the data from */
+ buf = (GLubyte*)Xmalloc(compsize);
+ if (!buf) {
+ /* Throw data away */
+ _XEatData(dpy, compsize);
+ __glXSetError(gc, GL_OUT_OF_MEMORY);
+ } else {
+ GLint width;
+
+ /*
+ ** Fetch data into holding buffer. Apply pixel store pack modes
+ ** to put data back into client memory
+ */
+ width = (int)reply.width;
+ __GLX_SINGLE_GET_CHAR_ARRAY(((char*)buf),(long)compsize);
+ __glEmptyImage(gc, 1, width, 1, 1, format, type, buf, values);
+ Xfree((char*) buf);
+ }
+ } else {
+ /*
+ ** GL error occured, don't modify user's buffer.
+ */
+ }
+ __GLX_SINGLE_END();
+}
+
+void glGetMinmax(GLenum target, GLboolean reset, GLenum format, GLenum type,
+ GLvoid *values)
+{
+ __GLX_SINGLE_DECLARE_VARIABLES();
+ const __GLXattribute * state;
+ xGLXGetMinmaxReply reply;
+ GLubyte *buf;
+
+ if (!dpy) return;
+ __GLX_SINGLE_LOAD_VARIABLES();
+ state = gc->client_state_private;
+
+ /* Send request */
+ __GLX_SINGLE_BEGIN(X_GLsop_GetMinmax,__GLX_PAD(14));
+ __GLX_SINGLE_PUT_LONG(0,(long)target);
+ __GLX_SINGLE_PUT_LONG(4,(long)format);
+ __GLX_SINGLE_PUT_LONG(8,(long)type);
+ __GLX_SINGLE_PUT_CHAR(12,state->storePack.swapEndian);
+ __GLX_SINGLE_PUT_CHAR(13,reset);
+ __GLX_SINGLE_READ_XREPLY();
+ compsize = (long)reply.length << 2;
+
+ if (compsize != 0) {
+ /* Allocate a holding buffer to transform the data from */
+ buf = (GLubyte*)Xmalloc(compsize);
+ if (!buf) {
+ /* Throw data away */
+ _XEatData(dpy, compsize);
+ __glXSetError(gc, GL_OUT_OF_MEMORY);
+ } else {
+ /*
+ ** Fetch data into holding buffer. Apply pixel store pack modes
+ ** to put data back into client memory
+ */
+ __GLX_SINGLE_GET_CHAR_ARRAY(((char*)buf),(long)compsize);
+ __glEmptyImage(gc, 1, 2, 1, 1, format, type, buf, values);
+ Xfree((char*) buf);
+ }
+ } else {
+ /*
+ ** GL error occured, don't modify user's buffer.
+ */
+ }
+ __GLX_SINGLE_END();
+}
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