69b79c1a66
Under the terms of version 1.1, "once Covered Code has been published under a particular version of the License, Recipient may, for the duration of the License, continue to use it under the terms of that version, or choose to use such Covered Code under the terms of any subsequent version published by SGI." FreeB 2.0 license refers to "dates of first publication". They are here taken to be 1991-2000, as noted in the original license text: ** 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. Official FreeB 2.0 text: http://oss.sgi.com/projects/FreeB/SGIFreeSWLicB.2.0.pdf As always, this code has not been tested for conformance with the OpenGL specification. OpenGL conformance testing is available from http://khronos.org/ and is required for use of the OpenGL logo in product advertising and promotion.
343 lines
8.4 KiB
C
343 lines
8.4 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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/* #define NEED_REPLIES */
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#include "glxserver.h"
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#include "unpack.h"
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#include "g_disptab.h"
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GLint __glEvalComputeK(GLenum target)
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{
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switch (target) {
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case GL_MAP1_VERTEX_4:
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case GL_MAP1_COLOR_4:
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case GL_MAP1_TEXTURE_COORD_4:
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case GL_MAP2_VERTEX_4:
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case GL_MAP2_COLOR_4:
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case GL_MAP2_TEXTURE_COORD_4:
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return 4;
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case GL_MAP1_VERTEX_3:
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case GL_MAP1_TEXTURE_COORD_3:
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case GL_MAP1_NORMAL:
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case GL_MAP2_VERTEX_3:
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case GL_MAP2_TEXTURE_COORD_3:
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case GL_MAP2_NORMAL:
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return 3;
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case GL_MAP1_TEXTURE_COORD_2:
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case GL_MAP2_TEXTURE_COORD_2:
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return 2;
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case GL_MAP1_TEXTURE_COORD_1:
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case GL_MAP2_TEXTURE_COORD_1:
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case GL_MAP1_INDEX:
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case GL_MAP2_INDEX:
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return 1;
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default:
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return 0;
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}
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}
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void __glXDispSwap_Map1f(GLbyte *pc)
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{
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GLint order, k;
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GLfloat u1, u2, *points;
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GLenum target;
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GLint compsize;
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__GLX_DECLARE_SWAP_VARIABLES;
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__GLX_SWAP_INT(pc + 0);
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__GLX_SWAP_INT(pc + 12);
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__GLX_SWAP_FLOAT(pc + 4);
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__GLX_SWAP_FLOAT(pc + 8);
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target = *(GLenum *)(pc + 0);
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order = *(GLint *)(pc + 12);
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u1 = *(GLfloat *)(pc + 4);
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u2 = *(GLfloat *)(pc + 8);
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points = (GLfloat *)(pc + 16);
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k = __glEvalComputeK(target);
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if (order <= 0 || k < 0) {
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/* Erroneous command. */
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compsize = 0;
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} else {
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compsize = order * k;
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}
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__GLX_SWAP_FLOAT_ARRAY(points, compsize);
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}
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void __glXDispSwap_Map2f(GLbyte *pc)
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{
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GLint uorder, vorder, ustride, vstride, k;
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GLfloat u1, u2, v1, v2, *points;
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GLenum target;
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GLint compsize;
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__GLX_DECLARE_SWAP_VARIABLES;
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__GLX_SWAP_INT(pc + 0);
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__GLX_SWAP_INT(pc + 12);
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__GLX_SWAP_INT(pc + 24);
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__GLX_SWAP_FLOAT(pc + 4);
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__GLX_SWAP_FLOAT(pc + 8);
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__GLX_SWAP_FLOAT(pc + 16);
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__GLX_SWAP_FLOAT(pc + 20);
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target = *(GLenum *)(pc + 0);
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uorder = *(GLint *)(pc + 12);
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vorder = *(GLint *)(pc + 24);
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u1 = *(GLfloat *)(pc + 4);
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u2 = *(GLfloat *)(pc + 8);
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v1 = *(GLfloat *)(pc + 16);
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v2 = *(GLfloat *)(pc + 20);
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points = (GLfloat *)(pc + 28);
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k = __glEvalComputeK(target);
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ustride = vorder * k;
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vstride = k;
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if (vorder <= 0 || uorder <= 0 || k < 0) {
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/* Erroneous command. */
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compsize = 0;
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} else {
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compsize = uorder * vorder * k;
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}
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__GLX_SWAP_FLOAT_ARRAY(points, compsize);
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}
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void __glXDispSwap_Map1d(GLbyte *pc)
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{
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GLint order, k, compsize;
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GLenum target;
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GLdouble u1, u2, *points;
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__GLX_DECLARE_SWAP_VARIABLES;
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__GLX_SWAP_DOUBLE(pc + 0);
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__GLX_SWAP_DOUBLE(pc + 8);
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__GLX_SWAP_INT(pc + 16);
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__GLX_SWAP_INT(pc + 20);
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target = *(GLenum*) (pc + 16);
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order = *(GLint*) (pc + 20);
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k = __glEvalComputeK(target);
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if (order <= 0 || k < 0) {
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/* Erroneous command. */
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compsize = 0;
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} else {
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compsize = order * k;
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}
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__GLX_GET_DOUBLE(u1,pc);
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__GLX_GET_DOUBLE(u2,pc+8);
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__GLX_SWAP_DOUBLE_ARRAY(pc+24, compsize);
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pc += 24;
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#ifdef __GLX_ALIGN64
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if (((unsigned long)pc) & 7) {
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/*
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** Copy the doubles up 4 bytes, trashing the command but aligning
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** the data in the process
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*/
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__GLX_MEM_COPY(pc-4, pc, compsize*8);
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points = (GLdouble*) (pc - 4);
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} else {
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points = (GLdouble*) pc;
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}
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#else
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points = (GLdouble*) pc;
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#endif
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}
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void __glXDispSwap_Map2d(GLbyte *pc)
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{
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GLdouble u1, u2, v1, v2, *points;
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GLint uorder, vorder, ustride, vstride, k, compsize;
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GLenum target;
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__GLX_DECLARE_SWAP_VARIABLES;
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__GLX_SWAP_DOUBLE(pc + 0);
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__GLX_SWAP_DOUBLE(pc + 8);
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__GLX_SWAP_DOUBLE(pc + 16);
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__GLX_SWAP_DOUBLE(pc + 24);
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__GLX_SWAP_INT(pc + 32);
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__GLX_SWAP_INT(pc + 36);
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__GLX_SWAP_INT(pc + 40);
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target = *(GLenum *)(pc + 32);
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uorder = *(GLint *)(pc + 36);
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vorder = *(GLint *)(pc + 40);
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k = __glEvalComputeK(target);
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if (vorder <= 0 || uorder <= 0 || k < 0) {
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/* Erroneous command. */
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compsize = 0;
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} else {
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compsize = uorder * vorder * k;
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}
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__GLX_GET_DOUBLE(u1,pc);
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__GLX_GET_DOUBLE(u2,pc+8);
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__GLX_GET_DOUBLE(v1,pc+16);
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__GLX_GET_DOUBLE(v2,pc+24);
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__GLX_SWAP_DOUBLE_ARRAY(pc+44, compsize);
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pc += 44;
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ustride = vorder * k;
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vstride = k;
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#ifdef __GLX_ALIGN64
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if (((unsigned long)pc) & 7) {
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/*
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** Copy the doubles up 4 bytes, trashing the command but aligning
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** the data in the process
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*/
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__GLX_MEM_COPY(pc-4, pc, compsize*8);
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points = (GLdouble*) (pc - 4);
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} else {
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points = (GLdouble*) pc;
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}
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#else
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points = (GLdouble*) pc;
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#endif
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}
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void __glXDispSwap_CallLists(GLbyte *pc)
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{
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GLenum type;
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GLsizei n;
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__GLX_DECLARE_SWAP_VARIABLES;
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__GLX_SWAP_INT(pc + 4);
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__GLX_SWAP_INT(pc + 0);
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type = *(GLenum *)(pc + 4);
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n = *(GLsizei *)(pc + 0);
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switch (type) {
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case GL_BYTE:
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case GL_UNSIGNED_BYTE:
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case GL_2_BYTES:
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case GL_3_BYTES:
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case GL_4_BYTES:
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break;
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case GL_SHORT:
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case GL_UNSIGNED_SHORT:
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__GLX_SWAP_SHORT_ARRAY(pc+8, n);
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break;
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case GL_INT:
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case GL_UNSIGNED_INT:
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__GLX_SWAP_INT_ARRAY(pc+8, n);
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break;
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case GL_FLOAT:
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__GLX_SWAP_FLOAT_ARRAY(pc+8, n);
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break;
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}
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}
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static void swapArray(GLint numVals, GLenum datatype,
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GLint stride, GLint numVertexes, GLbyte *pc)
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{
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int i,j;
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__GLX_DECLARE_SWAP_VARIABLES;
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switch (datatype) {
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case GL_BYTE:
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case GL_UNSIGNED_BYTE:
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/* don't need to swap */
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return;
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case GL_SHORT:
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case GL_UNSIGNED_SHORT:
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for (i=0; i<numVertexes; i++) {
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GLshort *pVal = (GLshort *) pc;
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for (j=0; j<numVals; j++) {
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__GLX_SWAP_SHORT(&pVal[j]);
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}
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pc += stride;
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}
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break;
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case GL_INT:
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case GL_UNSIGNED_INT:
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for (i=0; i<numVertexes; i++) {
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GLint *pVal = (GLint *) pc;
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for (j=0; j<numVals; j++) {
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__GLX_SWAP_INT(&pVal[j]);
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}
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pc += stride;
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}
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break;
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case GL_FLOAT:
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for (i=0; i<numVertexes; i++) {
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GLfloat *pVal = (GLfloat *) pc;
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for (j=0; j<numVals; j++) {
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__GLX_SWAP_FLOAT(&pVal[j]);
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}
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pc += stride;
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}
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break;
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case GL_DOUBLE:
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for (i=0; i<numVertexes; i++) {
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GLdouble *pVal = (GLdouble *) pc;
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for (j=0; j<numVals; j++) {
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__GLX_SWAP_DOUBLE(&pVal[j]);
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}
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pc += stride;
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}
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break;
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default:
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return;
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}
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}
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void __glXDispSwap_DrawArrays(GLbyte *pc)
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{
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__GLXdispatchDrawArraysHeader *hdr = (__GLXdispatchDrawArraysHeader *)pc;
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__GLXdispatchDrawArraysComponentHeader *compHeader;
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int i;
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__GLX_DECLARE_SWAP_VARIABLES;
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__GLX_SWAP_INT(&hdr->numVertexes);
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__GLX_SWAP_INT(&hdr->numComponents);
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__GLX_SWAP_INT(&hdr->primType);
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pc += sizeof(__GLXdispatchDrawArraysHeader);
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compHeader = (__GLXdispatchDrawArraysComponentHeader *) pc;
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/* compute stride (same for all component arrays) */
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for (i=0; i<hdr->numComponents; i++) {
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__GLX_SWAP_INT(&compHeader[i].datatype);
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__GLX_SWAP_INT(&compHeader[i].numVals);
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__GLX_SWAP_INT(&compHeader[i].component);
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}
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}
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void __glXDispSwap_DrawArraysEXT(GLbyte *pc)
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{
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#ifdef XXX_STUB
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#endif /*XXX_STUB*/
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}
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