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/*
* SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
* Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice including the dates of first publication and
* either this permission notice or a reference to
* http://oss.sgi.com/projects/FreeB/
* shall be included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Except as contained in this notice, the name of Silicon Graphics, Inc.
* shall not be used in advertising or otherwise to promote the sale, use or
* other dealings in this Software without prior written authorization from
* Silicon Graphics, Inc.
*/
#include "glxserver.h"
#include "unpack.h"
#include "g_disptab.h"
static GLint
__glEvalComputeK(GLenum target)
{
switch (target) {
case GL_MAP1_VERTEX_4:
case GL_MAP1_COLOR_4:
case GL_MAP1_TEXTURE_COORD_4:
case GL_MAP2_VERTEX_4:
case GL_MAP2_COLOR_4:
case GL_MAP2_TEXTURE_COORD_4:
return 4;
case GL_MAP1_VERTEX_3:
case GL_MAP1_TEXTURE_COORD_3:
case GL_MAP1_NORMAL:
case GL_MAP2_VERTEX_3:
case GL_MAP2_TEXTURE_COORD_3:
case GL_MAP2_NORMAL:
return 3;
case GL_MAP1_TEXTURE_COORD_2:
case GL_MAP2_TEXTURE_COORD_2:
return 2;
case GL_MAP1_TEXTURE_COORD_1:
case GL_MAP2_TEXTURE_COORD_1:
case GL_MAP1_INDEX:
case GL_MAP2_INDEX:
return 1;
default:
return 0;
}
}
void
__glXDispSwap_Map1f(GLbyte * pc)
{
GLint order, k;
GLfloat u1, u2, *points;
GLenum target;
GLint compsize;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_DECLARE_SWAP_ARRAY_VARIABLES;
__GLX_SWAP_INT(pc + 0);
__GLX_SWAP_INT(pc + 12);
__GLX_SWAP_FLOAT(pc + 4);
__GLX_SWAP_FLOAT(pc + 8);
target = *(GLenum *) (pc + 0);
order = *(GLint *) (pc + 12);
u1 = *(GLfloat *) (pc + 4);
u2 = *(GLfloat *) (pc + 8);
points = (GLfloat *) (pc + 16);
k = __glEvalComputeK(target);
if (order <= 0 || k < 0) {
/* Erroneous command. */
compsize = 0;
}
else {
compsize = order * k;
}
__GLX_SWAP_FLOAT_ARRAY(points, compsize);
}
void
__glXDispSwap_Map2f(GLbyte * pc)
{
GLint uorder, vorder, ustride, vstride, k;
GLfloat u1, u2, v1, v2, *points;
GLenum target;
GLint compsize;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_DECLARE_SWAP_ARRAY_VARIABLES;
__GLX_SWAP_INT(pc + 0);
__GLX_SWAP_INT(pc + 12);
__GLX_SWAP_INT(pc + 24);
__GLX_SWAP_FLOAT(pc + 4);
__GLX_SWAP_FLOAT(pc + 8);
__GLX_SWAP_FLOAT(pc + 16);
__GLX_SWAP_FLOAT(pc + 20);
target = *(GLenum *) (pc + 0);
uorder = *(GLint *) (pc + 12);
vorder = *(GLint *) (pc + 24);
u1 = *(GLfloat *) (pc + 4);
u2 = *(GLfloat *) (pc + 8);
v1 = *(GLfloat *) (pc + 16);
v2 = *(GLfloat *) (pc + 20);
points = (GLfloat *) (pc + 28);
k = __glEvalComputeK(target);
ustride = vorder * k;
vstride = k;
if (vorder <= 0 || uorder <= 0 || k < 0) {
/* Erroneous command. */
compsize = 0;
}
else {
compsize = uorder * vorder * k;
}
__GLX_SWAP_FLOAT_ARRAY(points, compsize);
}
void
__glXDispSwap_Map1d(GLbyte * pc)
{
GLint order, k, compsize;
GLenum target;
GLdouble u1, u2, *points;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_DECLARE_SWAP_ARRAY_VARIABLES;
__GLX_SWAP_DOUBLE(pc + 0);
__GLX_SWAP_DOUBLE(pc + 8);
__GLX_SWAP_INT(pc + 16);
__GLX_SWAP_INT(pc + 20);
target = *(GLenum *) (pc + 16);
order = *(GLint *) (pc + 20);
k = __glEvalComputeK(target);
if (order <= 0 || k < 0) {
/* Erroneous command. */
compsize = 0;
}
else {
compsize = order * k;
}
__GLX_GET_DOUBLE(u1, pc);
__GLX_GET_DOUBLE(u2, pc + 8);
__GLX_SWAP_DOUBLE_ARRAY(pc + 24, compsize);
pc += 24;
#ifdef __GLX_ALIGN64
if (((unsigned long) pc) & 7) {
/*
** Copy the doubles up 4 bytes, trashing the command but aligning
** the data in the process
*/
__GLX_MEM_COPY(pc - 4, pc, compsize * 8);
points = (GLdouble *) (pc - 4);
}
else {
points = (GLdouble *) pc;
}
#else
points = (GLdouble *) pc;
#endif
}
void
__glXDispSwap_Map2d(GLbyte * pc)
{
GLdouble u1, u2, v1, v2, *points;
GLint uorder, vorder, ustride, vstride, k, compsize;
GLenum target;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_DECLARE_SWAP_ARRAY_VARIABLES;
__GLX_SWAP_DOUBLE(pc + 0);
__GLX_SWAP_DOUBLE(pc + 8);
__GLX_SWAP_DOUBLE(pc + 16);
__GLX_SWAP_DOUBLE(pc + 24);
__GLX_SWAP_INT(pc + 32);
__GLX_SWAP_INT(pc + 36);
__GLX_SWAP_INT(pc + 40);
target = *(GLenum *) (pc + 32);
uorder = *(GLint *) (pc + 36);
vorder = *(GLint *) (pc + 40);
k = __glEvalComputeK(target);
if (vorder <= 0 || uorder <= 0 || k < 0) {
/* Erroneous command. */
compsize = 0;
}
else {
compsize = uorder * vorder * k;
}
__GLX_GET_DOUBLE(u1, pc);
__GLX_GET_DOUBLE(u2, pc + 8);
__GLX_GET_DOUBLE(v1, pc + 16);
__GLX_GET_DOUBLE(v2, pc + 24);
__GLX_SWAP_DOUBLE_ARRAY(pc + 44, compsize);
pc += 44;
ustride = vorder * k;
vstride = k;
#ifdef __GLX_ALIGN64
if (((unsigned long) pc) & 7) {
/*
** Copy the doubles up 4 bytes, trashing the command but aligning
** the data in the process
*/
__GLX_MEM_COPY(pc - 4, pc, compsize * 8);
points = (GLdouble *) (pc - 4);
}
else {
points = (GLdouble *) pc;
}
#else
points = (GLdouble *) pc;
#endif
}
void
__glXDispSwap_CallLists(GLbyte * pc)
{
GLenum type;
GLsizei n;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_DECLARE_SWAP_ARRAY_VARIABLES;
__GLX_SWAP_INT(pc + 4);
__GLX_SWAP_INT(pc + 0);
type = *(GLenum *) (pc + 4);
n = *(GLsizei *) (pc + 0);
switch (type) {
case GL_BYTE:
case GL_UNSIGNED_BYTE:
case GL_2_BYTES:
case GL_3_BYTES:
case GL_4_BYTES:
break;
case GL_SHORT:
case GL_UNSIGNED_SHORT:
__GLX_SWAP_SHORT_ARRAY(pc + 8, n);
break;
case GL_INT:
case GL_UNSIGNED_INT:
__GLX_SWAP_INT_ARRAY(pc + 8, n);
break;
case GL_FLOAT:
__GLX_SWAP_FLOAT_ARRAY(pc + 8, n);
break;
}
}
void
__glXDispSwap_DrawArrays(GLbyte * pc)
{
__GLXdispatchDrawArraysHeader *hdr = (__GLXdispatchDrawArraysHeader *) pc;
__GLXdispatchDrawArraysComponentHeader *compHeader;
int i;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_SWAP_INT(&hdr->numVertexes);
__GLX_SWAP_INT(&hdr->numComponents);
__GLX_SWAP_INT(&hdr->primType);
pc += sizeof(__GLXdispatchDrawArraysHeader);
compHeader = (__GLXdispatchDrawArraysComponentHeader *) pc;
/* compute stride (same for all component arrays) */
for (i = 0; i < hdr->numComponents; i++) {
__GLX_SWAP_INT(&compHeader[i].datatype);
__GLX_SWAP_INT(&compHeader[i].numVals);
__GLX_SWAP_INT(&compHeader[i].component);
}
}
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