284 lines
7.2 KiB
C
284 lines
7.2 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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#include "glxserver.h"
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#include "unpack.h"
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#include "g_disptab.h"
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static GLint
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__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
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__glXDispSwap_Map1f(GLbyte * pc)
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{
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GLint order, k;
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GLfloat *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_DECLARE_SWAP_ARRAY_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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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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}
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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
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__glXDispSwap_Map2f(GLbyte * pc)
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{
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GLint uorder, vorder, k;
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GLfloat *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_DECLARE_SWAP_ARRAY_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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points = (GLfloat *) (pc + 28);
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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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}
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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
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__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;
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__GLX_DECLARE_SWAP_VARIABLES;
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__GLX_DECLARE_SWAP_ARRAY_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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}
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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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}
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#endif
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}
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void
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__glXDispSwap_Map2d(GLbyte * pc)
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{
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GLdouble u1, u2, v1, v2;
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GLint uorder, vorder, k, compsize;
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GLenum target;
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__GLX_DECLARE_SWAP_VARIABLES;
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__GLX_DECLARE_SWAP_ARRAY_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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}
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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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#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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}
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#endif
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}
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void
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__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_DECLARE_SWAP_ARRAY_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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void
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__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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