xorg-server-1.4/GL/glx/render2swap.c

   1 /*
   2 ** License Applicability. Except to the extent portions of this file are
   3 ** made subject to an alternative license as permitted in the SGI Free
   4 ** Software License B, Version 1.1 (the "License"), the contents of this
   5 ** file are subject only to the provisions of the License. You may not use
   6 ** this file except in compliance with the License. You may obtain a copy
   7 ** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
   8 ** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
   9 **
  10 ** http://oss.sgi.com/projects/FreeB
  11 **
  12 ** Note that, as provided in the License, the Software is distributed on an
  13 ** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
  14 ** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
  15 ** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
  16 ** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
  17 **
  18 ** Original Code. The Original Code is: OpenGL Sample Implementation,
  19 ** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
  20 ** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
  21 ** Copyright in any portions created by third parties is as indicated
  22 ** elsewhere herein. All Rights Reserved.
  23 **
  24 ** Additional Notice Provisions: The application programming interfaces
  25 ** established by SGI in conjunction with the Original Code are The
  26 ** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
  27 ** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
  28 ** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
  29 ** Window System(R) (Version 1.3), released October 19, 1998. This software
  30 ** was created using the OpenGL(R) version 1.2.1 Sample Implementation
  31 ** published by SGI, but has not been independently verified as being
  32 ** compliant with the OpenGL(R) version 1.2.1 Specification.
  33 **
  34 */
  35
  36 /* #define NEED_REPLIES */
  37 #ifdef HAVE_DIX_CONFIG_H
  38 #include <dix-config.h>
  39 #endif
  40
  41 #include "glxserver.h"
  42 #include "unpack.h"
  43 #include "indirect_size.h"
  44 #include "indirect_dispatch.h"
  45 #include "glapitable.h"
  46 #include "glapi.h"
  47 #include "glthread.h"
  48 #include "dispatch.h"
  49
  50
  51 void __glXDispSwap_Map1f(GLbyte *pc)
  52 {
  53     GLint order, k;
  54     GLfloat u1, u2, *points;
  55     GLenum target;
  56     GLint compsize;
  57     __GLX_DECLARE_SWAP_VARIABLES;
  58     __GLX_DECLARE_SWAP_ARRAY_VARIABLES;
  59
  60     __GLX_SWAP_INT(pc + 0);
  61     __GLX_SWAP_INT(pc + 12);
  62     __GLX_SWAP_FLOAT(pc + 4);
  63     __GLX_SWAP_FLOAT(pc + 8);
  64
  65     target = *(GLenum *)(pc + 0);
  66     order = *(GLint *)(pc + 12);
  67     u1 = *(GLfloat *)(pc + 4);
  68     u2 = *(GLfloat *)(pc + 8);
  69     points = (GLfloat *)(pc + 16);
  70     k = __glMap1f_size(target);
  71
  72     if (order <= 0 || k < 0) {
  73         /* Erroneous command. */
  74         compsize = 0;
  75     } else {
  76         compsize = order * k;
  77     }
  78     __GLX_SWAP_FLOAT_ARRAY(points, compsize);
  79
  80     CALL_Map1f( GET_DISPATCH(), (target, u1, u2, k, order, points) );
  81 }
  82
  83 void __glXDispSwap_Map2f(GLbyte *pc)
  84 {
  85     GLint uorder, vorder, ustride, vstride, k;
  86     GLfloat u1, u2, v1, v2, *points;
  87     GLenum target;
  88     GLint compsize;
  89     __GLX_DECLARE_SWAP_VARIABLES;
  90     __GLX_DECLARE_SWAP_ARRAY_VARIABLES;
  91
  92     __GLX_SWAP_INT(pc + 0);
  93     __GLX_SWAP_INT(pc + 12);
  94     __GLX_SWAP_INT(pc + 24);
  95     __GLX_SWAP_FLOAT(pc + 4);
  96     __GLX_SWAP_FLOAT(pc + 8);
  97     __GLX_SWAP_FLOAT(pc + 16);
  98     __GLX_SWAP_FLOAT(pc + 20);
  99
 100     target = *(GLenum *)(pc + 0);
 101     uorder = *(GLint *)(pc + 12);
 102     vorder = *(GLint *)(pc + 24);
 103     u1 = *(GLfloat *)(pc + 4);
 104     u2 = *(GLfloat *)(pc + 8);
 105     v1 = *(GLfloat *)(pc + 16);
 106     v2 = *(GLfloat *)(pc + 20);
 107     points = (GLfloat *)(pc + 28);
 108
 109     k = __glMap2f_size(target);
 110     ustride = vorder * k;
 111     vstride = k;
 112
 113     if (vorder <= 0 || uorder <= 0 || k < 0) {
 114         /* Erroneous command. */
 115         compsize = 0;
 116     } else {
 117         compsize = uorder * vorder * k;
 118     }
 119     __GLX_SWAP_FLOAT_ARRAY(points, compsize);
 120
 121     CALL_Map2f( GET_DISPATCH(), (target, u1, u2, ustride, uorder, v1, v2, vstride, vorder, points) );
 122 }
 123
 124 void __glXDispSwap_Map1d(GLbyte *pc)
 125 {
 126     GLint order, k, compsize;
 127     GLenum target;
 128     GLdouble u1, u2, *points;
 129     __GLX_DECLARE_SWAP_VARIABLES;
 130     __GLX_DECLARE_SWAP_ARRAY_VARIABLES;
 131
 132     __GLX_SWAP_DOUBLE(pc + 0);
 133     __GLX_SWAP_DOUBLE(pc + 8);
 134     __GLX_SWAP_INT(pc + 16);
 135     __GLX_SWAP_INT(pc + 20);
 136
 137     target = *(GLenum*) (pc + 16);
 138     order = *(GLint*) (pc + 20);
 139     k = __glMap1d_size(target);
 140     if (order <= 0 || k < 0) {
 141         /* Erroneous command. */
 142         compsize = 0;
 143     } else {
 144         compsize = order * k;
 145     }
 146     __GLX_GET_DOUBLE(u1,pc);
 147     __GLX_GET_DOUBLE(u2,pc+8);
 148     __GLX_SWAP_DOUBLE_ARRAY(pc+24, compsize);
 149     pc += 24;
 150
 151 #ifdef __GLX_ALIGN64
 152     if (((unsigned long)pc) & 7) {
 153         /*
 154         ** Copy the doubles up 4 bytes, trashing the command but aligning
 155         ** the data in the process
 156         */
 157         __GLX_MEM_COPY(pc-4, pc, compsize*8);
 158         points = (GLdouble*) (pc - 4);
 159     } else {
 160         points = (GLdouble*) pc;
 161     }
 162 #else
 163     points = (GLdouble*) pc;
 164 #endif
 165     CALL_Map1d( GET_DISPATCH(), (target, u1, u2, k, order, points) );
 166 }
 167
 168 void __glXDispSwap_Map2d(GLbyte *pc)
 169 {
 170     GLdouble u1, u2, v1, v2, *points;
 171     GLint uorder, vorder, ustride, vstride, k, compsize;
 172     GLenum target;
 173     __GLX_DECLARE_SWAP_VARIABLES;
 174     __GLX_DECLARE_SWAP_ARRAY_VARIABLES;
 175
 176     __GLX_SWAP_DOUBLE(pc + 0);
 177     __GLX_SWAP_DOUBLE(pc + 8);
 178     __GLX_SWAP_DOUBLE(pc + 16);
 179     __GLX_SWAP_DOUBLE(pc + 24);
 180     __GLX_SWAP_INT(pc + 32);
 181     __GLX_SWAP_INT(pc + 36);
 182     __GLX_SWAP_INT(pc + 40);
 183
 184     target = *(GLenum *)(pc + 32);
 185     uorder = *(GLint *)(pc + 36);
 186     vorder = *(GLint *)(pc + 40);
 187     k = __glMap2d_size(target);
 188     if (vorder <= 0 || uorder <= 0 || k < 0) {
 189         /* Erroneous command. */
 190         compsize = 0;
 191     } else {
 192         compsize = uorder * vorder * k;
 193     }
 194     __GLX_GET_DOUBLE(u1,pc);
 195     __GLX_GET_DOUBLE(u2,pc+8);
 196     __GLX_GET_DOUBLE(v1,pc+16);
 197     __GLX_GET_DOUBLE(v2,pc+24);
 198     __GLX_SWAP_DOUBLE_ARRAY(pc+44, compsize);
 199     pc += 44;
 200     ustride = vorder * k;
 201     vstride = k;
 202
 203 #ifdef __GLX_ALIGN64
 204     if (((unsigned long)pc) & 7) {
 205         /*
 206         ** Copy the doubles up 4 bytes, trashing the command but aligning
 207         ** the data in the process
 208         */
 209         __GLX_MEM_COPY(pc-4, pc, compsize*8);
 210         points = (GLdouble*) (pc - 4);
 211     } else {
 212         points = (GLdouble*) pc;
 213     }
 214 #else
 215     points = (GLdouble*) pc;
 216 #endif
 217     CALL_Map2d( GET_DISPATCH(), (target, u1, u2, ustride, uorder, v1, v2, vstride, vorder, points) );
 218 }
 219
 220 static void swapArray(GLint numVals, GLenum datatype,
 221                       GLint stride, GLint numVertexes, GLbyte *pc)
 222 {
 223     int i,j;
 224     __GLX_DECLARE_SWAP_VARIABLES;
 225
 226     switch (datatype) {
 227       case GL_BYTE:
 228       case GL_UNSIGNED_BYTE:
 229         /* don't need to swap */
 230         return;
 231       case GL_SHORT:
 232       case GL_UNSIGNED_SHORT:
 233         for (i=0; i<numVertexes; i++) {
 234             GLshort *pVal = (GLshort *) pc;
 235             for (j=0; j<numVals; j++) {
 236                 __GLX_SWAP_SHORT(&pVal[j]);
 237             }
 238             pc += stride;
 239         }
 240         break;
 241       case GL_INT:
 242       case GL_UNSIGNED_INT:
 243         for (i=0; i<numVertexes; i++) {
 244             GLint *pVal = (GLint *) pc;
 245             for (j=0; j<numVals; j++) {
 246                 __GLX_SWAP_INT(&pVal[j]);
 247             }
 248             pc += stride;
 249         }
 250         break;
 251       case GL_FLOAT:
 252         for (i=0; i<numVertexes; i++) {
 253             GLfloat *pVal = (GLfloat *) pc;
 254             for (j=0; j<numVals; j++) {
 255                 __GLX_SWAP_FLOAT(&pVal[j]);
 256             }
 257             pc += stride;
 258         }
 259         break;
 260       case GL_DOUBLE:
 261         for (i=0; i<numVertexes; i++) {
 262             GLdouble *pVal = (GLdouble *) pc;
 263             for (j=0; j<numVals; j++) {
 264                 __GLX_SWAP_DOUBLE(&pVal[j]);
 265             }
 266             pc += stride;
 267         }
 268         break;
 269       default:
 270         return;
 271     }
 272 }
 273
 274 void __glXDispSwap_DrawArrays(GLbyte *pc)
 275 {
 276     __GLXdispatchDrawArraysHeader *hdr = (__GLXdispatchDrawArraysHeader *)pc;
 277     __GLXdispatchDrawArraysComponentHeader *compHeader;
 278     GLint numVertexes = hdr->numVertexes;
 279     GLint numComponents = hdr->numComponents;
 280     GLenum primType = hdr->primType;
 281     GLint stride = 0;
 282     int i;
 283     __GLX_DECLARE_SWAP_VARIABLES;
 284
 285     __GLX_SWAP_INT(&numVertexes);
 286     __GLX_SWAP_INT(&numComponents);
 287     __GLX_SWAP_INT(&primType);
 288
 289     pc += sizeof(__GLXdispatchDrawArraysHeader);
 290     compHeader = (__GLXdispatchDrawArraysComponentHeader *) pc;
 291
 292     /* compute stride (same for all component arrays) */
 293     for (i=0; i<numComponents; i++) {
 294         GLenum datatype = compHeader[i].datatype;
 295         GLint numVals = compHeader[i].numVals;
 296         GLenum component = compHeader[i].component;
 297
 298         __GLX_SWAP_INT(&datatype);
 299         __GLX_SWAP_INT(&numVals);
 300         __GLX_SWAP_INT(&component);
 301
 302         stride += __GLX_PAD(numVals * __glXTypeSize(datatype));
 303     }
 304
 305     pc += numComponents * sizeof(__GLXdispatchDrawArraysComponentHeader);
 306
 307     /* set up component arrays */
 308     for (i=0; i<numComponents; i++) {
 309         GLenum datatype = compHeader[i].datatype;
 310         GLint numVals = compHeader[i].numVals;
 311         GLenum component = compHeader[i].component;
 312
 313         __GLX_SWAP_INT(&datatype);
 314         __GLX_SWAP_INT(&numVals);
 315         __GLX_SWAP_INT(&component);
 316
 317         swapArray(numVals, datatype, stride, numVertexes, pc);
 318
 319         switch (component) {
 320           case GL_VERTEX_ARRAY:
 321             CALL_EnableClientState( GET_DISPATCH(), (GL_VERTEX_ARRAY) );
 322             CALL_VertexPointer( GET_DISPATCH(), (numVals, datatype, stride, pc) );
 323             break;
 324           case GL_NORMAL_ARRAY:
 325             CALL_EnableClientState( GET_DISPATCH(), (GL_NORMAL_ARRAY) );
 326             CALL_NormalPointer( GET_DISPATCH(), (datatype, stride, pc) );
 327             break;
 328           case GL_COLOR_ARRAY:
 329             CALL_EnableClientState( GET_DISPATCH(), (GL_COLOR_ARRAY) );
 330             CALL_ColorPointer( GET_DISPATCH(), (numVals, datatype, stride, pc) );
 331             break;
 332           case GL_INDEX_ARRAY:
 333             CALL_EnableClientState( GET_DISPATCH(), (GL_INDEX_ARRAY) );
 334             CALL_IndexPointer( GET_DISPATCH(), (datatype, stride, pc) );
 335             break;
 336           case GL_TEXTURE_COORD_ARRAY:
 337             CALL_EnableClientState( GET_DISPATCH(), (GL_TEXTURE_COORD_ARRAY) );
 338             CALL_TexCoordPointer( GET_DISPATCH(), (numVals, datatype, stride, pc) );
 339             break;
 340           case GL_EDGE_FLAG_ARRAY:
 341             CALL_EnableClientState( GET_DISPATCH(), (GL_EDGE_FLAG_ARRAY) );
 342             CALL_EdgeFlagPointer( GET_DISPATCH(), (stride, (const GLboolean *)pc) );
 343             break;
 344           case GL_SECONDARY_COLOR_ARRAY:
 345             CALL_EnableClientState( GET_DISPATCH(), (GL_SECONDARY_COLOR_ARRAY) );
 346             CALL_SecondaryColorPointerEXT( GET_DISPATCH(), (numVals, datatype, stride, pc) );
 347             break;
 348           case GL_FOG_COORD_ARRAY:
 349             CALL_EnableClientState( GET_DISPATCH(), (GL_FOG_COORD_ARRAY) );
 350             CALL_FogCoordPointerEXT( GET_DISPATCH(), (datatype, stride, pc) );
 351             break;
 352           default:
 353             break;
 354         }
 355
 356         pc += __GLX_PAD(numVals * __glXTypeSize(datatype));
 357     }
 358
 359     CALL_DrawArrays( GET_DISPATCH(), (primType, 0, numVertexes) );
 360
 361     /* turn off anything we might have turned on */
 362     CALL_DisableClientState( GET_DISPATCH(), (GL_VERTEX_ARRAY) );
 363     CALL_DisableClientState( GET_DISPATCH(), (GL_NORMAL_ARRAY) );
 364     CALL_DisableClientState( GET_DISPATCH(), (GL_COLOR_ARRAY) );
 365     CALL_DisableClientState( GET_DISPATCH(), (GL_INDEX_ARRAY) );
 366     CALL_DisableClientState( GET_DISPATCH(), (GL_TEXTURE_COORD_ARRAY) );
 367     CALL_DisableClientState( GET_DISPATCH(), (GL_EDGE_FLAG_ARRAY) );
 368     CALL_DisableClientState( GET_DISPATCH(), (GL_SECONDARY_COLOR_ARRAY) );
 369     CALL_DisableClientState( GET_DISPATCH(), (GL_FOG_COORD_ARRAY) );
 370 }
 371
 372 void __glXDispSwap_DrawArraysEXT(GLbyte *pc)
 373 {
 374    __glXDispSwap_DrawArrays(pc);
 375 }