src/mesa/tnl/t_array_import.c

   1 /* $Id: t_array_import.c,v 1.19 2001/12/14 02:51:42 brianp Exp $ */
   2
   3 /*
   4  * Mesa 3-D graphics library
   5  * Version:  3.5
   6  *
   7  * Copyright (C) 1999-2001  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 <keithw@valinux.com>
  28  */
  29
  30 #include "glheader.h"
  31 #include "context.h"
  32 #include "macros.h"
  33 #include "mem.h"
  34 #include "mmath.h"
  35 #include "state.h"
  36 #include "mtypes.h"
  37
  38 #include "array_cache/acache.h"
  39 #include "math/m_translate.h"
  40
  41 #include "t_array_import.h"
  42 #include "t_context.h"
  43 #include "t_imm_debug.h"
  44
  45
  46 static void _tnl_import_vertex( GLcontext *ctx,
  47                                 GLboolean writeable,
  48                                 GLboolean stride )
  49 {
  50    struct gl_client_array *tmp;
  51    GLboolean is_writeable = 0;
  52    struct vertex_arrays *inputs = &TNL_CONTEXT(ctx)->array_inputs;
  53
  54    tmp = _ac_import_vertex(ctx,
  55                            GL_FLOAT,
  56                            stride ? 4*sizeof(GLfloat) : 0,
  57                            0,
  58                            writeable,
  59                            &is_writeable);
  60
  61    inputs->Obj.data = (GLfloat (*)[4]) tmp->Ptr;
  62    inputs->Obj.start = (GLfloat *) tmp->Ptr;
  63    inputs->Obj.stride = tmp->StrideB;
  64    inputs->Obj.size = tmp->Size;
  65    inputs->Obj.flags &= ~(VEC_BAD_STRIDE|VEC_NOT_WRITEABLE);
  66    if (inputs->Obj.stride != 4*sizeof(GLfloat))
  67       inputs->Obj.flags |= VEC_BAD_STRIDE;
  68    if (!is_writeable)
  69       inputs->Obj.flags |= VEC_NOT_WRITEABLE;
  70 }
  71
  72 static void _tnl_import_normal( GLcontext *ctx,
  73                                 GLboolean writeable,
  74                                 GLboolean stride )
  75 {
  76    struct gl_client_array *tmp;
  77    GLboolean is_writeable = 0;
  78    struct vertex_arrays *inputs = &TNL_CONTEXT(ctx)->array_inputs;
  79
  80    tmp = _ac_import_normal(ctx, GL_FLOAT,
  81                            stride ? 3*sizeof(GLfloat) : 0, writeable,
  82                            &is_writeable);
  83
  84    inputs->Normal.data = (GLfloat (*)[3]) tmp->Ptr;
  85    inputs->Normal.start = (GLfloat *) tmp->Ptr;
  86    inputs->Normal.stride = tmp->StrideB;
  87    inputs->Normal.flags &= ~(VEC_BAD_STRIDE|VEC_NOT_WRITEABLE);
  88    if (inputs->Normal.stride != 3*sizeof(GLfloat))
  89       inputs->Normal.flags |= VEC_BAD_STRIDE;
  90    if (!is_writeable)
  91       inputs->Normal.flags |= VEC_NOT_WRITEABLE;
  92 }
  93
  94
  95 static void _tnl_import_color( GLcontext *ctx,
  96                                GLenum type,
  97                                GLboolean writeable,
  98                                GLboolean stride )
  99 {
 100    struct gl_client_array *tmp;
 101    GLboolean is_writeable = 0;
 102    struct vertex_arrays *inputs = &TNL_CONTEXT(ctx)->array_inputs;
 103
 104    tmp = _ac_import_color(ctx,
 105                           type,
 106                           stride ? 4*sizeof(GLfloat) : 0,
 107                           4,
 108                           writeable,
 109                           &is_writeable);
 110
 111    inputs->Color = *tmp;
 112 }
 113
 114
 115 static void _tnl_import_secondarycolor( GLcontext *ctx,
 116                                         GLenum type,
 117                                         GLboolean writeable,
 118                                         GLboolean stride )
 119 {
 120    struct gl_client_array *tmp;
 121    GLboolean is_writeable = 0;
 122    struct vertex_arrays *inputs = &TNL_CONTEXT(ctx)->array_inputs;
 123
 124    tmp = _ac_import_secondarycolor(ctx,
 125                                    type,
 126                                    stride ? 4*sizeof(GLfloat) : 0,
 127                                    4,
 128                                    writeable,
 129                                    &is_writeable);
 130
 131    inputs->SecondaryColor = *tmp;
 132 }
 133
 134 static void _tnl_import_fogcoord( GLcontext *ctx,
 135                                   GLboolean writeable,
 136                                   GLboolean stride )
 137 {
 138    struct vertex_arrays *inputs = &TNL_CONTEXT(ctx)->array_inputs;
 139     struct gl_client_array *tmp;
 140    GLboolean is_writeable = 0;
 141
 142    tmp = _ac_import_fogcoord(ctx, GL_FLOAT,
 143                              stride ? sizeof(GLfloat) : 0, writeable,
 144                              &is_writeable);
 145
 146    inputs->FogCoord.data = (GLfloat *) tmp->Ptr;
 147    inputs->FogCoord.start = (GLfloat *) tmp->Ptr;
 148    inputs->FogCoord.stride = tmp->StrideB;
 149    inputs->FogCoord.flags &= ~(VEC_BAD_STRIDE|VEC_NOT_WRITEABLE);
 150    if (inputs->FogCoord.stride != sizeof(GLfloat))
 151       inputs->FogCoord.flags |= VEC_BAD_STRIDE;
 152    if (!is_writeable)
 153       inputs->FogCoord.flags |= VEC_NOT_WRITEABLE;
 154 }
 155
 156 static void _tnl_import_index( GLcontext *ctx,
 157                                GLboolean writeable,
 158                                GLboolean stride )
 159 {
 160    struct vertex_arrays *inputs = &TNL_CONTEXT(ctx)->array_inputs;
 161    struct gl_client_array *tmp;
 162    GLboolean is_writeable = 0;
 163
 164    tmp = _ac_import_index(ctx, GL_UNSIGNED_INT,
 165                           stride ? sizeof(GLuint) : 0, writeable,
 166                           &is_writeable);
 167
 168    inputs->Index.data = (GLuint *) tmp->Ptr;
 169    inputs->Index.start = (GLuint *) tmp->Ptr;
 170    inputs->Index.stride = tmp->StrideB;
 171    inputs->Index.flags &= ~(VEC_BAD_STRIDE|VEC_NOT_WRITEABLE);
 172    if (inputs->Index.stride != sizeof(GLuint))
 173       inputs->Index.flags |= VEC_BAD_STRIDE;
 174    if (!is_writeable)
 175       inputs->Index.flags |= VEC_NOT_WRITEABLE;
 176 }
 177
 178
 179 static void _tnl_import_texcoord( GLcontext *ctx,
 180                                   GLuint i,
 181                                   GLboolean writeable,
 182                                   GLboolean stride )
 183 {
 184    struct vertex_arrays *inputs = &TNL_CONTEXT(ctx)->array_inputs;
 185    struct gl_client_array *tmp;
 186    GLboolean is_writeable = 0;
 187
 188    tmp = _ac_import_texcoord(ctx, i, GL_FLOAT,
 189                              stride ? 4*sizeof(GLfloat) : 0,
 190                              0,
 191                              writeable,
 192                              &is_writeable);
 193
 194    inputs->TexCoord[i].data = (GLfloat (*)[4]) tmp->Ptr;
 195    inputs->TexCoord[i].start = (GLfloat *) tmp->Ptr;
 196    inputs->TexCoord[i].stride = tmp->StrideB;
 197    inputs->TexCoord[i].size = tmp->Size;
 198    inputs->TexCoord[i].flags &= ~(VEC_BAD_STRIDE|VEC_NOT_WRITEABLE);
 199    if (inputs->TexCoord[i].stride != 4*sizeof(GLfloat))
 200       inputs->TexCoord[i].flags |= VEC_BAD_STRIDE;
 201    if (!is_writeable)
 202       inputs->TexCoord[i].flags |= VEC_NOT_WRITEABLE;
 203 }
 204
 205
 206 static void _tnl_import_edgeflag( GLcontext *ctx,
 207                                   GLboolean writeable,
 208                                   GLboolean stride )
 209 {
 210    struct vertex_arrays *inputs = &TNL_CONTEXT(ctx)->array_inputs;
 211    struct gl_client_array *tmp;
 212    GLboolean is_writeable = 0;
 213
 214    tmp = _ac_import_edgeflag(ctx, GL_UNSIGNED_BYTE,
 215                              stride ? sizeof(GLubyte) : 0,
 216                              0,
 217                              &is_writeable);
 218
 219    inputs->EdgeFlag.data = (GLubyte *) tmp->Ptr;
 220    inputs->EdgeFlag.start = (GLubyte *) tmp->Ptr;
 221    inputs->EdgeFlag.stride = tmp->StrideB;
 222    inputs->EdgeFlag.flags &= ~(VEC_BAD_STRIDE|VEC_NOT_WRITEABLE);
 223    if (inputs->EdgeFlag.stride != sizeof(GLubyte))
 224       inputs->EdgeFlag.flags |= VEC_BAD_STRIDE;
 225    if (!is_writeable)
 226       inputs->EdgeFlag.flags |= VEC_NOT_WRITEABLE;
 227 }
 228
 229
 230
 231 /* Callback for VB stages that need to improve the quality of arrays
 232  * bound to the VB.  This is only necessary for client arrays which
 233  * have not been transformed at any point in the pipeline.
 234  */
 235 static void _tnl_upgrade_client_data( GLcontext *ctx,
 236                                       GLuint required,
 237                                       GLuint flags )
 238 {
 239    GLuint i;
 240    struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
 241    GLboolean writeable = (flags & VEC_NOT_WRITEABLE) != 0;
 242    GLboolean stride = (flags & VEC_BAD_STRIDE) != 0;
 243    struct vertex_arrays *inputs = &TNL_CONTEXT(ctx)->array_inputs;
 244    GLuint ca_flags = 0;
 245    (void) inputs;
 246
 247    if (writeable || stride) ca_flags |= CA_CLIENT_DATA;
 248
 249    if ((required & VERT_CLIP) && VB->ClipPtr == VB->ObjPtr)
 250       required |= VERT_OBJ_BIT;
 251
 252 /*     _tnl_print_vert_flags("_tnl_upgrade_client_data", required); */
 253
 254    if ((required & VERT_OBJ_BIT) && (VB->ObjPtr->flags & flags)) {
 255       ASSERT(VB->ObjPtr == &inputs->Obj);
 256       _tnl_import_vertex( ctx, writeable, stride );
 257       VB->importable_data &= ~(VERT_OBJ_BIT|VERT_CLIP);
 258    }
 259
 260    if ((required & VERT_NORMAL_BIT) && (VB->NormalPtr->flags & flags)) {
 261       ASSERT(VB->NormalPtr == &inputs->Normal);
 262       _tnl_import_normal( ctx, writeable, stride );
 263       VB->importable_data &= ~VERT_NORMAL_BIT;
 264    }
 265
 266    if ((required & VERT_COLOR0_BIT) && (VB->ColorPtr[0]->Flags & ca_flags)) {
 267       ASSERT(VB->ColorPtr[0] == &inputs->Color);
 268       _tnl_import_color( ctx, GL_FLOAT, writeable, stride );
 269       VB->importable_data &= ~VERT_COLOR0_BIT;
 270    }
 271
 272    if ((required & VERT_COLOR1_BIT) &&
 273        (VB->SecondaryColorPtr[0]->Flags & ca_flags)) {
 274       ASSERT(VB->SecondaryColorPtr[0] == &inputs->SecondaryColor);
 275       _tnl_import_secondarycolor( ctx, GL_FLOAT, writeable, stride );
 276       VB->importable_data &= ~VERT_COLOR1_BIT;
 277    }
 278
 279    if ((required & VERT_FOG_BIT) && (VB->FogCoordPtr->flags & flags)) {
 280       ASSERT(VB->FogCoordPtr == &inputs->FogCoord);
 281       _tnl_import_fogcoord( ctx, writeable, stride );
 282       VB->importable_data &= ~VERT_FOG_BIT;
 283    }
 284
 285    if ((required & VERT_INDEX_BIT) && (VB->IndexPtr[0]->flags & flags)) {
 286       ASSERT(VB->IndexPtr[0] == &inputs->Index);
 287       _tnl_import_index( ctx, writeable, stride );
 288       VB->importable_data &= ~VERT_INDEX_BIT;
 289    }
 290
 291    if (required & VERT_TEX_ANY)
 292       for (i = 0 ; i < ctx->Const.MaxTextureUnits ; i++)
 293          if ((required & VERT_TEX(i)) && (VB->TexCoordPtr[i]->flags & flags)) {
 294             ASSERT(VB->TexCoordPtr[i] == &inputs->TexCoord[i]);
 295             _tnl_import_texcoord( ctx, i, writeable, stride );
 296             VB->importable_data &= ~VERT_TEX(i);
 297          }
 298
 299 }
 300
 301
 302
 303 void _tnl_vb_bind_arrays( GLcontext *ctx, GLint start, GLsizei count )
 304 {
 305    TNLcontext *tnl = TNL_CONTEXT(ctx);
 306    struct vertex_buffer *VB = &tnl->vb;
 307    GLuint inputs = tnl->pipeline.inputs;
 308    struct vertex_arrays *tmp = &tnl->array_inputs;
 309    GLuint i;
 310
 311 /*        fprintf(stderr, "%s %d..%d // %d..%d\n", __FUNCTION__, */
 312 /*            start, count, ctx->Array.LockFirst, ctx->Array.LockCount);  */
 313 /*        _tnl_print_vert_flags("    inputs", inputs);  */
 314 /*        _tnl_print_vert_flags("    _Enabled", ctx->Array._Enabled); */
 315 /*        _tnl_print_vert_flags("    importable", inputs & VERT_FIXUP); */
 316
 317    VB->Count = count - start;
 318    VB->FirstClipped = VB->Count;
 319    VB->Elts = 0;
 320    VB->MaterialMask = 0;
 321    VB->Material = 0;
 322    VB->Flag = 0;
 323    VB->Primitive = tnl->tmp_primitive;
 324    VB->PrimitiveLength = tnl->tmp_primitive_length;
 325    VB->import_data = _tnl_upgrade_client_data;
 326    VB->importable_data = inputs & VERT_FIXUP;
 327
 328    if (ctx->Array.LockCount) {
 329       ASSERT(start == (GLint) ctx->Array.LockFirst);
 330       ASSERT(count == (GLint) ctx->Array.LockCount);
 331    }
 332
 333    _ac_import_range( ctx, start, count );
 334
 335    if (inputs & VERT_OBJ_BIT) {
 336       _tnl_import_vertex( ctx, 0, 0 );
 337       tmp->Obj.count = VB->Count;
 338       VB->ObjPtr = &tmp->Obj;
 339    }
 340
 341    if (inputs & VERT_NORMAL_BIT) {
 342       _tnl_import_normal( ctx, 0, 0 );
 343       tmp->Normal.count = VB->Count;
 344       VB->NormalPtr = &tmp->Normal;
 345    }
 346
 347    if (inputs & VERT_COLOR0_BIT) {
 348       _tnl_import_color( ctx, 0, 0, 0 );
 349       VB->ColorPtr[0] = &tmp->Color;
 350       VB->ColorPtr[1] = 0;
 351    }
 352
 353    if (inputs & VERT_TEX_ANY) {
 354       for (i = 0; i < ctx->Const.MaxTextureUnits ; i++) {
 355          if (inputs & VERT_TEX(i)) {
 356             _tnl_import_texcoord( ctx, i, 0, 0 );
 357             tmp->TexCoord[i].count = VB->Count;
 358             VB->TexCoordPtr[i] = &tmp->TexCoord[i];
 359          }
 360       }
 361    }
 362
 363    if (inputs & (VERT_INDEX_BIT|VERT_FOG_BIT|VERT_EDGEFLAG_BIT|VERT_COLOR1_BIT)) {
 364       if (inputs & VERT_INDEX_BIT) {
 365          _tnl_import_index( ctx, 0, 0 );
 366          tmp->Index.count = VB->Count;
 367          VB->IndexPtr[0] = &tmp->Index;
 368          VB->IndexPtr[1] = 0;
 369       }
 370
 371       if (inputs & VERT_FOG_BIT) {
 372          _tnl_import_fogcoord( ctx, 0, 0 );
 373          tmp->FogCoord.count = VB->Count;
 374          VB->FogCoordPtr = &tmp->FogCoord;
 375       }
 376
 377       if (inputs & VERT_EDGEFLAG_BIT) {
 378          _tnl_import_edgeflag( ctx, GL_TRUE, sizeof(GLboolean) );
 379          VB->EdgeFlag = (GLboolean *) tmp->EdgeFlag.data;
 380       }
 381
 382       if (inputs & VERT_COLOR1_BIT) {
 383          _tnl_import_secondarycolor( ctx, 0, 0, 0 );
 384          VB->SecondaryColorPtr[0] = &tmp->SecondaryColor;
 385          VB->SecondaryColorPtr[1] = 0;
 386       }
 387    }
 388 }
 389
 390