src/mesa/array_cache/ac_context.c

   1 /* $Id: ac_context.c,v 1.9 2002/10/29 20:28:58 brianp Exp $ */
   2
   3 /*
   4  * Mesa 3-D graphics library
   5  * Version:  4.1
   6  *
   7  * Copyright (C) 1999-2002  Brian Paul   All Rights Reserved.
   8  *
   9  * Permission is hereby granted, free of charge, to any person obtaining a
  10  * copy of this software and associated documentation files (the "Software"),
  11  * to deal in the Software without restriction, including without limitation
  12  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  13  * and/or sell copies of the Software, and to permit persons to whom the
  14  * Software is furnished to do so, subject to the following conditions:
  15  *
  16  * The above copyright notice and this permission notice shall be included
  17  * in all copies or substantial portions of the Software.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  20  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  21  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  22  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  23  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  24  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  * Authors:
  27  *    Keith Whitwell <keith@tungstengraphics.com>
  28  */
  29
  30 #include "glheader.h"
  31 #include "macros.h"
  32 #include "imports.h"
  33 #include "mmath.h"
  34 #include "mtypes.h"
  35
  36 #include "array_cache/ac_context.h"
  37
  38
  39 /*
  40  * Initialize the array fallbacks.  That is, by default the fallback arrays
  41  * point into the current vertex attribute values in ctx->Current.Attrib[]
  42  */
  43 static void _ac_fallbacks_init( GLcontext *ctx )
  44 {
  45    ACcontext *ac = AC_CONTEXT(ctx);
  46    struct gl_client_array *cl;
  47    GLuint i;
  48
  49    cl = &ac->Fallback.Normal;
  50    cl->Size = 3;
  51    cl->Type = GL_FLOAT;
  52    cl->Stride = 0;
  53    cl->StrideB = 0;
  54    cl->Ptr = (void *) ctx->Current.Attrib[VERT_ATTRIB_NORMAL];
  55    cl->Enabled = 1;
  56    cl->Flags = CA_CLIENT_DATA;  /* hack */
  57
  58    cl = &ac->Fallback.Color;
  59    cl->Size = 4;
  60    cl->Type = GL_FLOAT;
  61    cl->Stride = 0;
  62    cl->StrideB = 0;
  63    cl->Ptr = (void *) ctx->Current.Attrib[VERT_ATTRIB_COLOR0];
  64    cl->Enabled = 1;
  65    cl->Flags = CA_CLIENT_DATA;  /* hack */
  66
  67    cl = &ac->Fallback.SecondaryColor;
  68    cl->Size = 3;
  69    cl->Type = GL_FLOAT;
  70    cl->Stride = 0;
  71    cl->StrideB = 0;
  72    cl->Ptr = (void *) ctx->Current.Attrib[VERT_ATTRIB_COLOR1];
  73    cl->Enabled = 1;
  74    cl->Flags = CA_CLIENT_DATA;  /* hack */
  75
  76    cl = &ac->Fallback.FogCoord;
  77    cl->Size = 1;
  78    cl->Type = GL_FLOAT;
  79    cl->Stride = 0;
  80    cl->StrideB = 0;
  81    cl->Ptr = (void *) &ctx->Current.Attrib[VERT_ATTRIB_FOG];
  82    cl->Enabled = 1;
  83    cl->Flags = CA_CLIENT_DATA;  /* hack */
  84
  85    cl = &ac->Fallback.Index;
  86    cl->Size = 1;
  87    cl->Type = GL_UNSIGNED_INT;
  88    cl->Stride = 0;
  89    cl->StrideB = 0;
  90    cl->Ptr = (void *) &ctx->Current.Index;
  91    cl->Enabled = 1;
  92    cl->Flags = CA_CLIENT_DATA;  /* hack */
  93
  94    for (i = 0 ; i < MAX_TEXTURE_UNITS ; i++) {
  95       cl = &ac->Fallback.TexCoord[i];
  96       cl->Size = 4;
  97       cl->Type = GL_FLOAT;
  98       cl->Stride = 0;
  99       cl->StrideB = 0;
 100       cl->Ptr = (void *) ctx->Current.Attrib[VERT_ATTRIB_TEX0 + i];
 101       cl->Enabled = 1;
 102       cl->Flags = CA_CLIENT_DATA;       /* hack */
 103    }
 104
 105    cl = &ac->Fallback.EdgeFlag;
 106    cl->Size = 1;
 107    cl->Type = GL_UNSIGNED_BYTE;
 108    cl->Stride = 0;
 109    cl->StrideB = 0;
 110    cl->Ptr = (void *) &ctx->Current.EdgeFlag;
 111    cl->Enabled = 1;
 112    cl->Flags = CA_CLIENT_DATA;  /* hack */
 113
 114    for (i = 0; i < VERT_ATTRIB_MAX; i++) {
 115       cl = &ac->Fallback.Attrib[i];
 116       cl->Size = 4;
 117       cl->Type = GL_FLOAT;
 118       cl->Stride = 0;
 119       cl->StrideB = 0;
 120       cl->Ptr = (void *) ctx->Current.Attrib[i];
 121       cl->Enabled = 1;
 122       cl->Flags = CA_CLIENT_DATA; /* hack */
 123    }
 124 }
 125
 126
 127 /*
 128  * Initialize the array cache pointers, types, strides, etc.
 129  */
 130 static void _ac_cache_init( GLcontext *ctx )
 131 {
 132    ACcontext *ac = AC_CONTEXT(ctx);
 133    struct gl_client_array *cl;
 134    GLuint size = ctx->Const.MaxArrayLockSize + MAX_CLIPPED_VERTICES;
 135    GLuint i;
 136
 137    cl = &ac->Cache.Vertex;
 138    cl->Size = 4;
 139    cl->Type = GL_FLOAT;
 140    cl->Stride = 0;
 141    cl->StrideB = 4 * sizeof(GLfloat);
 142    cl->Ptr = MALLOC( cl->StrideB * size );
 143    cl->Enabled = 1;
 144    cl->Flags = 0;
 145
 146    cl = &ac->Cache.Normal;
 147    cl->Size = 3;
 148    cl->Type = GL_FLOAT;
 149    cl->Stride = 0;
 150    cl->StrideB = 3 * sizeof(GLfloat);
 151    cl->Ptr = MALLOC( cl->StrideB * size );
 152    cl->Enabled = 1;
 153    cl->Flags = 0;
 154
 155    cl = &ac->Cache.Color;
 156    cl->Size = 4;
 157    cl->Type = GL_FLOAT;
 158    cl->Stride = 0;
 159    cl->StrideB = 4 * sizeof(GLfloat);
 160    cl->Ptr = MALLOC( cl->StrideB * size );
 161    cl->Enabled = 1;
 162    cl->Flags = 0;
 163
 164    cl = &ac->Cache.SecondaryColor;
 165    cl->Size = 3;
 166    cl->Type = GL_FLOAT;
 167    cl->Stride = 0;
 168    cl->StrideB = 4 * sizeof(GLfloat);
 169    cl->Ptr = MALLOC( cl->StrideB * size );
 170    cl->Enabled = 1;
 171    cl->Flags = 0;
 172
 173    cl = &ac->Cache.FogCoord;
 174    cl->Size = 1;
 175    cl->Type = GL_FLOAT;
 176    cl->Stride = 0;
 177    cl->StrideB = sizeof(GLfloat);
 178    cl->Ptr = MALLOC( cl->StrideB * size );
 179    cl->Enabled = 1;
 180    cl->Flags = 0;
 181
 182    cl = &ac->Cache.Index;
 183    cl->Size = 1;
 184    cl->Type = GL_UNSIGNED_INT;
 185    cl->Stride = 0;
 186    cl->StrideB = sizeof(GLuint);
 187    cl->Ptr = MALLOC( cl->StrideB * size );
 188    cl->Enabled = 1;
 189    cl->Flags = 0;
 190
 191    for (i = 0; i < MAX_TEXTURE_UNITS; i++) {
 192       cl = &ac->Cache.TexCoord[i];
 193       cl->Size = 4;
 194       cl->Type = GL_FLOAT;
 195       cl->Stride = 0;
 196       cl->StrideB = 4 * sizeof(GLfloat);
 197       cl->Ptr = MALLOC( cl->StrideB * size );
 198       cl->Enabled = 1;
 199       cl->Flags = 0;
 200    }
 201
 202    cl = &ac->Cache.EdgeFlag;
 203    cl->Size = 1;
 204    cl->Type = GL_UNSIGNED_BYTE;
 205    cl->Stride = 0;
 206    cl->StrideB = sizeof(GLubyte);
 207    cl->Ptr = MALLOC( cl->StrideB * size );
 208    cl->Enabled = 1;
 209    cl->Flags = 0;
 210
 211    for (i = 0 ; i < VERT_ATTRIB_MAX; i++) {
 212       cl = &ac->Cache.Attrib[i];
 213       cl->Size = 4;
 214       cl->Type = GL_FLOAT;
 215       cl->Stride = 0;
 216       cl->StrideB = 4 * sizeof(GLfloat);
 217       cl->Ptr = MALLOC( cl->StrideB * size );
 218       cl->Enabled = 1;
 219       cl->Flags = 0;
 220    }
 221 }
 222
 223
 224 /* This storage used to hold translated client data if type or stride
 225  * need to be fixed.
 226  */
 227 static void _ac_elts_init( GLcontext *ctx )
 228 {
 229    ACcontext *ac = AC_CONTEXT(ctx);
 230    GLuint size = 1000;
 231
 232    ac->Elts = (GLuint *)MALLOC( sizeof(GLuint) * size );
 233    ac->elt_size = size;
 234 }
 235
 236 static void _ac_raw_init( GLcontext *ctx )
 237 {
 238    ACcontext *ac = AC_CONTEXT(ctx);
 239    GLuint i;
 240
 241    ac->Raw.Color = ac->Fallback.Color;
 242    ac->Raw.EdgeFlag = ac->Fallback.EdgeFlag;
 243    ac->Raw.FogCoord = ac->Fallback.FogCoord;
 244    ac->Raw.Index = ac->Fallback.Index;
 245    ac->Raw.Normal = ac->Fallback.Normal;
 246    ac->Raw.SecondaryColor = ac->Fallback.SecondaryColor;
 247    ac->Raw.Vertex = ctx->Array.Vertex;
 248
 249    ac->IsCached.Color = GL_FALSE;
 250    ac->IsCached.EdgeFlag = GL_FALSE;
 251    ac->IsCached.FogCoord = GL_FALSE;
 252    ac->IsCached.Index = GL_FALSE;
 253    ac->IsCached.Normal = GL_FALSE;
 254    ac->IsCached.SecondaryColor = GL_FALSE;
 255    ac->IsCached.Vertex = GL_FALSE;
 256
 257    for (i = 0 ; i < MAX_TEXTURE_UNITS ; i++) {
 258       ac->Raw.TexCoord[i] = ac->Fallback.TexCoord[i];
 259       ac->IsCached.TexCoord[i] = GL_FALSE;
 260    }
 261
 262    for (i = 0 ; i < VERT_ATTRIB_MAX ; i++) {
 263       ac->Raw.Attrib[i] = ac->Fallback.Attrib[i];
 264       ac->IsCached.Attrib[i] = GL_FALSE;
 265    }
 266 }
 267
 268 GLboolean _ac_CreateContext( GLcontext *ctx )
 269 {
 270    ctx->acache_context = CALLOC(sizeof(ACcontext));
 271    if (ctx->acache_context) {
 272       _ac_cache_init( ctx );
 273       _ac_fallbacks_init( ctx );
 274       _ac_raw_init( ctx );
 275       _ac_elts_init( ctx );
 276       return GL_TRUE;
 277    }
 278    return GL_FALSE;
 279 }
 280
 281 void _ac_DestroyContext( GLcontext *ctx )
 282 {
 283    ACcontext *ac = AC_CONTEXT(ctx);
 284    GLint i;
 285
 286    if (ac->Cache.Vertex.Ptr) FREE( ac->Cache.Vertex.Ptr );
 287    if (ac->Cache.Normal.Ptr) FREE( ac->Cache.Normal.Ptr );
 288    if (ac->Cache.Color.Ptr) FREE( ac->Cache.Color.Ptr );
 289    if (ac->Cache.SecondaryColor.Ptr) FREE( ac->Cache.SecondaryColor.Ptr );
 290    if (ac->Cache.EdgeFlag.Ptr) FREE( ac->Cache.EdgeFlag.Ptr );
 291    if (ac->Cache.Index.Ptr) FREE( ac->Cache.Index.Ptr );
 292    if (ac->Cache.FogCoord.Ptr) FREE( ac->Cache.FogCoord.Ptr );
 293
 294    for (i = 0; i < MAX_TEXTURE_UNITS; i++) {
 295       if (ac->Cache.TexCoord[i].Ptr)
 296          FREE( ac->Cache.TexCoord[i].Ptr );
 297    }
 298
 299    for (i = 0; i < VERT_ATTRIB_MAX; i++) {
 300       if (ac->Cache.Attrib[i].Ptr)
 301          FREE( ac->Cache.Attrib[i].Ptr );
 302    }
 303
 304    if (ac->Elts) FREE( ac->Elts );
 305
 306    /* Free the context structure itself */
 307    FREE(ac);
 308    ctx->acache_context = NULL;
 309 }
 310
 311 void _ac_InvalidateState( GLcontext *ctx, GLuint new_state )
 312 {
 313    AC_CONTEXT(ctx)->NewState |= new_state;
 314    AC_CONTEXT(ctx)->NewArrayState |= ctx->Array.NewState;
 315 }