554 lines
		
	
	
		
			17 KiB
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			554 lines
		
	
	
		
			17 KiB
		
	
	
	
		
			C
		
	
	
	
| /*
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|  * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
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|  * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
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|  *
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|  * Permission is hereby granted, free of charge, to any person obtaining a
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|  * copy of this software and associated documentation files (the "Software"),
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|  * to deal in the Software without restriction, including without limitation
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|  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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|  * and/or sell copies of the Software, and to permit persons to whom the
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|  * Software is furnished to do so, subject to the following conditions:
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|  *
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|  * The above copyright notice including the dates of first publication and
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|  * either this permission notice or a reference to
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|  * http://oss.sgi.com/projects/FreeB/
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|  * shall be included in all copies or substantial portions of the Software.
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|  *
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|  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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|  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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|  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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|  * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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|  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
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|  * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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|  * SOFTWARE.
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|  *
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|  * Except as contained in this notice, the name of Silicon Graphics, Inc.
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|  * shall not be used in advertising or otherwise to promote the sale, use or
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|  * other dealings in this Software without prior written authorization from
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|  * Silicon Graphics, Inc.
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|  */
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| 
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| #ifdef HAVE_DIX_CONFIG_H
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| #include <dix-config.h>
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| #endif
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| 
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| #include "glxserver.h"
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| #include "glxext.h"
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| #include "singlesize.h"
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| #include "unpack.h"
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| #include "indirect_size_get.h"
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| #include "indirect_dispatch.h"
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| #include "glapitable.h"
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| #include "glapi.h"
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| #include "glthread.h"
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| #include "dispatch.h"
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| 
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| int
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| __glXDisp_ReadPixels(__GLXclientState * cl, GLbyte * pc)
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| {
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|     GLsizei width, height;
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|     GLenum format, type;
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|     GLboolean swapBytes, lsbFirst;
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|     GLint compsize;
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|     __GLXcontext *cx;
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|     ClientPtr client = cl->client;
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|     int error;
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|     char *answer, answerBuffer[200];
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| 
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|     cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error);
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|     if (!cx) {
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|         return error;
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|     }
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| 
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|     pc += __GLX_SINGLE_HDR_SIZE;
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|     width = *(GLsizei *) (pc + 8);
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|     height = *(GLsizei *) (pc + 12);
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|     format = *(GLenum *) (pc + 16);
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|     type = *(GLenum *) (pc + 20);
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|     swapBytes = *(GLboolean *) (pc + 24);
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|     lsbFirst = *(GLboolean *) (pc + 25);
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|     compsize = __glReadPixels_size(format, type, width, height);
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|     if (compsize < 0)
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|         compsize = 0;
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| 
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|     CALL_PixelStorei(GET_DISPATCH(), (GL_PACK_SWAP_BYTES, swapBytes));
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|     CALL_PixelStorei(GET_DISPATCH(), (GL_PACK_LSB_FIRST, lsbFirst));
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|     __GLX_GET_ANSWER_BUFFER(answer, cl, compsize, 1);
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|     __glXClearErrorOccured();
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|     CALL_ReadPixels(GET_DISPATCH(), (*(GLint *) (pc + 0),
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|                                      *(GLint *) (pc + 4),
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|                                      *(GLsizei *) (pc + 8),
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|                                      *(GLsizei *) (pc + 12),
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|                                      *(GLenum *) (pc + 16),
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|                                      *(GLenum *) (pc + 20), answer));
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| 
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|     if (__glXErrorOccured()) {
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|         __GLX_BEGIN_REPLY(0);
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|         __GLX_SEND_HEADER();
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|     }
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|     else {
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|         __GLX_BEGIN_REPLY(compsize);
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|         __GLX_SEND_HEADER();
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|         __GLX_SEND_VOID_ARRAY(compsize);
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|     }
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|     cx->hasUnflushedCommands = GL_FALSE;
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|     return Success;
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| }
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| 
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| int
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| __glXDisp_GetTexImage(__GLXclientState * cl, GLbyte * pc)
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| {
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|     GLint level, compsize;
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|     GLenum format, type, target;
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|     GLboolean swapBytes;
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|     __GLXcontext *cx;
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|     ClientPtr client = cl->client;
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|     int error;
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|     char *answer, answerBuffer[200];
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|     GLint width = 0, height = 0, depth = 1;
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| 
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|     cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error);
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|     if (!cx) {
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|         return error;
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|     }
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| 
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|     pc += __GLX_SINGLE_HDR_SIZE;
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|     level = *(GLint *) (pc + 4);
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|     format = *(GLenum *) (pc + 8);
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|     type = *(GLenum *) (pc + 12);
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|     target = *(GLenum *) (pc + 0);
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|     swapBytes = *(GLboolean *) (pc + 16);
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| 
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|     CALL_GetTexLevelParameteriv(GET_DISPATCH(),
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|                                 (target, level, GL_TEXTURE_WIDTH, &width));
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|     CALL_GetTexLevelParameteriv(GET_DISPATCH(),
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|                                 (target, level, GL_TEXTURE_HEIGHT, &height));
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|     if (target == GL_TEXTURE_3D) {
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|         CALL_GetTexLevelParameteriv(GET_DISPATCH(),
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|                                     (target, level, GL_TEXTURE_DEPTH, &depth));
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|     }
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|     /*
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|      * The three queries above might fail if we're in a state where queries
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|      * are illegal, but then width, height, and depth would still be zero anyway.
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|      */
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|     compsize =
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|         __glGetTexImage_size(target, level, format, type, width, height, depth);
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|     if (compsize < 0)
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|         compsize = 0;
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| 
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|     CALL_PixelStorei(GET_DISPATCH(), (GL_PACK_SWAP_BYTES, swapBytes));
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|     __GLX_GET_ANSWER_BUFFER(answer, cl, compsize, 1);
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|     __glXClearErrorOccured();
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|     CALL_GetTexImage(GET_DISPATCH(), (*(GLenum *) (pc + 0),
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|                                       *(GLint *) (pc + 4),
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|                                       *(GLenum *) (pc + 8),
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|                                       *(GLenum *) (pc + 12), answer));
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| 
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|     if (__glXErrorOccured()) {
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|         __GLX_BEGIN_REPLY(0);
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|         __GLX_SEND_HEADER();
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|     }
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|     else {
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|         __GLX_BEGIN_REPLY(compsize);
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|         ((xGLXGetTexImageReply *) &__glXReply)->width = width;
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|         ((xGLXGetTexImageReply *) &__glXReply)->height = height;
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|         ((xGLXGetTexImageReply *) &__glXReply)->depth = depth;
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|         __GLX_SEND_HEADER();
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|         __GLX_SEND_VOID_ARRAY(compsize);
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|     }
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|     return Success;
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| }
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| 
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| int
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| __glXDisp_GetPolygonStipple(__GLXclientState * cl, GLbyte * pc)
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| {
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|     GLboolean lsbFirst;
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|     __GLXcontext *cx;
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|     ClientPtr client = cl->client;
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|     int error;
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|     GLubyte answerBuffer[200];
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|     char *answer;
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| 
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|     cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error);
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|     if (!cx) {
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|         return error;
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|     }
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| 
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|     pc += __GLX_SINGLE_HDR_SIZE;
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|     lsbFirst = *(GLboolean *) (pc + 0);
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| 
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|     CALL_PixelStorei(GET_DISPATCH(), (GL_PACK_LSB_FIRST, lsbFirst));
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|     __GLX_GET_ANSWER_BUFFER(answer, cl, 128, 1);
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| 
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|     __glXClearErrorOccured();
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|     CALL_GetPolygonStipple(GET_DISPATCH(), ((GLubyte *) answer));
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| 
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|     if (__glXErrorOccured()) {
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|         __GLX_BEGIN_REPLY(0);
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|         __GLX_SEND_HEADER();
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|     }
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|     else {
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|         __GLX_BEGIN_REPLY(128);
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|         __GLX_SEND_HEADER();
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|         __GLX_SEND_BYTE_ARRAY(128);
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|     }
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|     return Success;
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| }
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| 
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| static int
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| GetSeparableFilter(__GLXclientState * cl, GLbyte * pc, GLXContextTag tag)
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| {
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|     GLint compsize, compsize2;
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|     GLenum format, type, target;
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|     GLboolean swapBytes;
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|     __GLXcontext *cx;
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|     ClientPtr client = cl->client;
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|     int error;
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|     char *answer, answerBuffer[200];
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|     GLint width = 0, height = 0;
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| 
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|     cx = __glXForceCurrent(cl, tag, &error);
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|     if (!cx) {
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|         return error;
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|     }
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| 
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|     format = *(GLenum *) (pc + 4);
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|     type = *(GLenum *) (pc + 8);
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|     target = *(GLenum *) (pc + 0);
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|     swapBytes = *(GLboolean *) (pc + 12);
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| 
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|     /* target must be SEPARABLE_2D, however I guess we can let the GL
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|        barf on this one.... */
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| 
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|     CALL_GetConvolutionParameteriv(GET_DISPATCH(),
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|                                    (target, GL_CONVOLUTION_WIDTH, &width));
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|     CALL_GetConvolutionParameteriv(GET_DISPATCH(),
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|                                    (target, GL_CONVOLUTION_HEIGHT, &height));
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|     /*
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|      * The two queries above might fail if we're in a state where queries
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|      * are illegal, but then width and height would still be zero anyway.
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|      */
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|     compsize = __glGetTexImage_size(target, 1, format, type, width, 1, 1);
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|     compsize2 = __glGetTexImage_size(target, 1, format, type, height, 1, 1);
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| 
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|     if (compsize < 0)
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|         compsize = 0;
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|     if (compsize2 < 0)
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|         compsize2 = 0;
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|     compsize = __GLX_PAD(compsize);
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|     compsize2 = __GLX_PAD(compsize2);
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| 
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|     CALL_PixelStorei(GET_DISPATCH(), (GL_PACK_SWAP_BYTES, swapBytes));
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|     __GLX_GET_ANSWER_BUFFER(answer, cl, compsize + compsize2, 1);
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|     __glXClearErrorOccured();
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|     CALL_GetSeparableFilter(GET_DISPATCH(), (*(GLenum *) (pc + 0),
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|                                              *(GLenum *) (pc + 4),
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|                                              *(GLenum *) (pc + 8),
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|                                              answer, answer + compsize, NULL));
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| 
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|     if (__glXErrorOccured()) {
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|         __GLX_BEGIN_REPLY(0);
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|         __GLX_SEND_HEADER();
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|     }
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|     else {
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|         __GLX_BEGIN_REPLY(compsize + compsize2);
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|         ((xGLXGetSeparableFilterReply *) &__glXReply)->width = width;
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|         ((xGLXGetSeparableFilterReply *) &__glXReply)->height = height;
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|         __GLX_SEND_HEADER();
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|         __GLX_SEND_VOID_ARRAY(compsize + compsize2);
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|     }
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| 
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|     return Success;
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| }
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| 
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| int
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| __glXDisp_GetSeparableFilter(__GLXclientState * cl, GLbyte * pc)
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| {
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|     const GLXContextTag tag = __GLX_GET_SINGLE_CONTEXT_TAG(pc);
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| 
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|     return GetSeparableFilter(cl, pc + __GLX_SINGLE_HDR_SIZE, tag);
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| }
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| 
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| int
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| __glXDisp_GetSeparableFilterEXT(__GLXclientState * cl, GLbyte * pc)
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| {
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|     const GLXContextTag tag = __GLX_GET_VENDPRIV_CONTEXT_TAG(pc);
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| 
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|     return GetSeparableFilter(cl, pc + __GLX_VENDPRIV_HDR_SIZE, tag);
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| }
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| 
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| static int
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| GetConvolutionFilter(__GLXclientState * cl, GLbyte * pc, GLXContextTag tag)
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| {
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|     GLint compsize;
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|     GLenum format, type, target;
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|     GLboolean swapBytes;
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|     __GLXcontext *cx;
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|     ClientPtr client = cl->client;
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|     int error;
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|     char *answer, answerBuffer[200];
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|     GLint width = 0, height = 0;
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| 
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|     cx = __glXForceCurrent(cl, tag, &error);
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|     if (!cx) {
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|         return error;
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|     }
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| 
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|     format = *(GLenum *) (pc + 4);
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|     type = *(GLenum *) (pc + 8);
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|     target = *(GLenum *) (pc + 0);
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|     swapBytes = *(GLboolean *) (pc + 12);
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| 
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|     CALL_GetConvolutionParameteriv(GET_DISPATCH(),
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|                                    (target, GL_CONVOLUTION_WIDTH, &width));
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|     if (target == GL_CONVOLUTION_1D) {
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|         height = 1;
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|     }
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|     else {
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|         CALL_GetConvolutionParameteriv(GET_DISPATCH(),
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|                                        (target, GL_CONVOLUTION_HEIGHT,
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|                                         &height));
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|     }
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|     /*
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|      * The two queries above might fail if we're in a state where queries
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|      * are illegal, but then width and height would still be zero anyway.
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|      */
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|     compsize = __glGetTexImage_size(target, 1, format, type, width, height, 1);
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|     if (compsize < 0)
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|         compsize = 0;
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| 
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|     CALL_PixelStorei(GET_DISPATCH(), (GL_PACK_SWAP_BYTES, swapBytes));
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|     __GLX_GET_ANSWER_BUFFER(answer, cl, compsize, 1);
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|     __glXClearErrorOccured();
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|     CALL_GetConvolutionFilter(GET_DISPATCH(), (*(GLenum *) (pc + 0),
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|                                                *(GLenum *) (pc + 4),
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|                                                *(GLenum *) (pc + 8), answer));
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| 
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|     if (__glXErrorOccured()) {
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|         __GLX_BEGIN_REPLY(0);
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|         __GLX_SEND_HEADER();
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|     }
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|     else {
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|         __GLX_BEGIN_REPLY(compsize);
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|         ((xGLXGetConvolutionFilterReply *) &__glXReply)->width = width;
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|         ((xGLXGetConvolutionFilterReply *) &__glXReply)->height = height;
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|         __GLX_SEND_HEADER();
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|         __GLX_SEND_VOID_ARRAY(compsize);
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|     }
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| 
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|     return Success;
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| }
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| 
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| int
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| __glXDisp_GetConvolutionFilter(__GLXclientState * cl, GLbyte * pc)
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| {
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|     const GLXContextTag tag = __GLX_GET_SINGLE_CONTEXT_TAG(pc);
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| 
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|     return GetConvolutionFilter(cl, pc + __GLX_SINGLE_HDR_SIZE, tag);
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| }
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| 
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| int
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| __glXDisp_GetConvolutionFilterEXT(__GLXclientState * cl, GLbyte * pc)
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| {
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|     const GLXContextTag tag = __GLX_GET_VENDPRIV_CONTEXT_TAG(pc);
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| 
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|     return GetConvolutionFilter(cl, pc + __GLX_VENDPRIV_HDR_SIZE, tag);
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| }
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| 
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| static int
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| GetHistogram(__GLXclientState * cl, GLbyte * pc, GLXContextTag tag)
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| {
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|     GLint compsize;
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|     GLenum format, type, target;
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|     GLboolean swapBytes, reset;
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|     __GLXcontext *cx;
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|     ClientPtr client = cl->client;
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|     int error;
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|     char *answer, answerBuffer[200];
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|     GLint width = 0;
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| 
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|     cx = __glXForceCurrent(cl, tag, &error);
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|     if (!cx) {
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|         return error;
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|     }
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| 
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|     format = *(GLenum *) (pc + 4);
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|     type = *(GLenum *) (pc + 8);
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|     target = *(GLenum *) (pc + 0);
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|     swapBytes = *(GLboolean *) (pc + 12);
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|     reset = *(GLboolean *) (pc + 13);
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| 
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|     CALL_GetHistogramParameteriv(GET_DISPATCH(),
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|                                  (target, GL_HISTOGRAM_WIDTH, &width));
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|     /*
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|      * The one query above might fail if we're in a state where queries
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|      * are illegal, but then width would still be zero anyway.
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|      */
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|     compsize = __glGetTexImage_size(target, 1, format, type, width, 1, 1);
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|     if (compsize < 0)
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|         compsize = 0;
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| 
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|     CALL_PixelStorei(GET_DISPATCH(), (GL_PACK_SWAP_BYTES, swapBytes));
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|     __GLX_GET_ANSWER_BUFFER(answer, cl, compsize, 1);
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|     __glXClearErrorOccured();
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|     CALL_GetHistogram(GET_DISPATCH(), (target, reset, format, type, answer));
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| 
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|     if (__glXErrorOccured()) {
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|         __GLX_BEGIN_REPLY(0);
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|         __GLX_SEND_HEADER();
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|     }
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|     else {
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|         __GLX_BEGIN_REPLY(compsize);
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|         ((xGLXGetHistogramReply *) &__glXReply)->width = width;
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|         __GLX_SEND_HEADER();
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|         __GLX_SEND_VOID_ARRAY(compsize);
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|     }
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| 
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|     return Success;
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| }
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| 
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| int
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| __glXDisp_GetHistogram(__GLXclientState * cl, GLbyte * pc)
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| {
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|     const GLXContextTag tag = __GLX_GET_SINGLE_CONTEXT_TAG(pc);
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| 
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|     return GetHistogram(cl, pc + __GLX_SINGLE_HDR_SIZE, tag);
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| }
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| 
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| int
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| __glXDisp_GetHistogramEXT(__GLXclientState * cl, GLbyte * pc)
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| {
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|     const GLXContextTag tag = __GLX_GET_VENDPRIV_CONTEXT_TAG(pc);
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| 
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|     return GetHistogram(cl, pc + __GLX_VENDPRIV_HDR_SIZE, tag);
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| }
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| 
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| static int
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| GetMinmax(__GLXclientState * cl, GLbyte * pc, GLXContextTag tag)
 | |
| {
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|     GLint compsize;
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|     GLenum format, type, target;
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|     GLboolean swapBytes, reset;
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|     __GLXcontext *cx;
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|     ClientPtr client = cl->client;
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|     int error;
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|     char *answer, answerBuffer[200];
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| 
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|     cx = __glXForceCurrent(cl, tag, &error);
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|     if (!cx) {
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|         return error;
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|     }
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| 
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|     format = *(GLenum *) (pc + 4);
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|     type = *(GLenum *) (pc + 8);
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|     target = *(GLenum *) (pc + 0);
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|     swapBytes = *(GLboolean *) (pc + 12);
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|     reset = *(GLboolean *) (pc + 13);
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| 
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|     compsize = __glGetTexImage_size(target, 1, format, type, 2, 1, 1);
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|     if (compsize < 0)
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|         compsize = 0;
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| 
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|     CALL_PixelStorei(GET_DISPATCH(), (GL_PACK_SWAP_BYTES, swapBytes));
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|     __GLX_GET_ANSWER_BUFFER(answer, cl, compsize, 1);
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|     __glXClearErrorOccured();
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|     CALL_GetMinmax(GET_DISPATCH(), (target, reset, format, type, answer));
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| 
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|     if (__glXErrorOccured()) {
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|         __GLX_BEGIN_REPLY(0);
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|         __GLX_SEND_HEADER();
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|     }
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|     else {
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|         __GLX_BEGIN_REPLY(compsize);
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|         __GLX_SEND_HEADER();
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|         __GLX_SEND_VOID_ARRAY(compsize);
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|     }
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| 
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|     return Success;
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| }
 | |
| 
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| int
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| __glXDisp_GetMinmax(__GLXclientState * cl, GLbyte * pc)
 | |
| {
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|     const GLXContextTag tag = __GLX_GET_SINGLE_CONTEXT_TAG(pc);
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| 
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|     return GetMinmax(cl, pc + __GLX_SINGLE_HDR_SIZE, tag);
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| }
 | |
| 
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| int
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| __glXDisp_GetMinmaxEXT(__GLXclientState * cl, GLbyte * pc)
 | |
| {
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|     const GLXContextTag tag = __GLX_GET_VENDPRIV_CONTEXT_TAG(pc);
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| 
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|     return GetMinmax(cl, pc + __GLX_VENDPRIV_HDR_SIZE, tag);
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| }
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| 
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| static int
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| GetColorTable(__GLXclientState * cl, GLbyte * pc, GLXContextTag tag)
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| {
 | |
|     GLint compsize;
 | |
|     GLenum format, type, target;
 | |
|     GLboolean swapBytes;
 | |
|     __GLXcontext *cx;
 | |
|     ClientPtr client = cl->client;
 | |
|     int error;
 | |
|     char *answer, answerBuffer[200];
 | |
|     GLint width = 0;
 | |
| 
 | |
|     cx = __glXForceCurrent(cl, tag, &error);
 | |
|     if (!cx) {
 | |
|         return error;
 | |
|     }
 | |
| 
 | |
|     target = *(GLenum *) (pc + 0);
 | |
|     format = *(GLenum *) (pc + 4);
 | |
|     type = *(GLenum *) (pc + 8);
 | |
|     swapBytes = *(GLboolean *) (pc + 12);
 | |
| 
 | |
|     CALL_GetColorTableParameteriv(GET_DISPATCH(),
 | |
|                                   (target, GL_COLOR_TABLE_WIDTH, &width));
 | |
|     /*
 | |
|      * The one query above might fail if we're in a state where queries
 | |
|      * are illegal, but then width would still be zero anyway.
 | |
|      */
 | |
|     compsize = __glGetTexImage_size(target, 1, format, type, width, 1, 1);
 | |
|     if (compsize < 0)
 | |
|         compsize = 0;
 | |
| 
 | |
|     CALL_PixelStorei(GET_DISPATCH(), (GL_PACK_SWAP_BYTES, swapBytes));
 | |
|     __GLX_GET_ANSWER_BUFFER(answer, cl, compsize, 1);
 | |
|     __glXClearErrorOccured();
 | |
|     CALL_GetColorTable(GET_DISPATCH(), (*(GLenum *) (pc + 0),
 | |
|                                         *(GLenum *) (pc + 4),
 | |
|                                         *(GLenum *) (pc + 8), answer));
 | |
| 
 | |
|     if (__glXErrorOccured()) {
 | |
|         __GLX_BEGIN_REPLY(0);
 | |
|         __GLX_SEND_HEADER();
 | |
|     }
 | |
|     else {
 | |
|         __GLX_BEGIN_REPLY(compsize);
 | |
|         ((xGLXGetColorTableReply *) &__glXReply)->width = width;
 | |
|         __GLX_SEND_HEADER();
 | |
|         __GLX_SEND_VOID_ARRAY(compsize);
 | |
|     }
 | |
| 
 | |
|     return Success;
 | |
| }
 | |
| 
 | |
| int
 | |
| __glXDisp_GetColorTable(__GLXclientState * cl, GLbyte * pc)
 | |
| {
 | |
|     const GLXContextTag tag = __GLX_GET_SINGLE_CONTEXT_TAG(pc);
 | |
| 
 | |
|     return GetColorTable(cl, pc + __GLX_SINGLE_HDR_SIZE, tag);
 | |
| }
 | |
| 
 | |
| int
 | |
| __glXDisp_GetColorTableSGI(__GLXclientState * cl, GLbyte * pc)
 | |
| {
 | |
|     const GLXContextTag tag = __GLX_GET_VENDPRIV_CONTEXT_TAG(pc);
 | |
| 
 | |
|     return GetColorTable(cl, pc + __GLX_VENDPRIV_HDR_SIZE, tag);
 | |
| }
 |