src/mesa/drivers/dri/mga/mgavb.c

   1 /*
   2  * Copyright 2000-2001 VA Linux Systems, Inc.
   3  * All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * on the rights to use, copy, modify, merge, publish, distribute, sub
   9  * license, and/or sell copies of the Software, and to permit persons to whom
  10  * the Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the next
  13  * paragraph) shall be included in all copies or substantial portions of the
  14  * Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
  19  * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  22  * OTHER DEALINGS IN THE SOFTWARE.
  23  *
  24  * Authors:
  25  *    Keith Whitwell <keith@tungstengraphics.com>
  26  */
  27
  28 #include <stdlib.h>
  29 #include "mgacontext.h"
  30 #include "mgavb.h"
  31 #include "mgatris.h"
  32 #include "mgaioctl.h"
  33 #include "mga_xmesa.h"
  34
  35 #include "main/glheader.h"
  36 #include "main/mtypes.h"
  37 #include "main/imports.h"
  38 #include "main/macros.h"
  39 #include "main/colormac.h"
  40
  41 #include "tnl/t_context.h"
  42 #include "swrast_setup/swrast_setup.h"
  43 #include "swrast/swrast.h"
  44
  45
  46 #define MGA_TEX1_BIT       0x1
  47 #define MGA_TEX0_BIT       0x2
  48 #define MGA_RGBA_BIT       0x4
  49 #define MGA_SPEC_BIT       0x8
  50 #define MGA_FOG_BIT        0x10
  51 #define MGA_XYZW_BIT       0x20
  52 #define MGA_PTEX_BIT       0x40
  53 #define MGA_MAX_SETUP      0x80
  54
  55 static struct {
  56    void                (*emit)( GLcontext *, GLuint, GLuint, void *, GLuint );
  57    tnl_interp_func              interp;
  58    tnl_copy_pv_func             copy_pv;
  59    GLboolean           (*check_tex_sizes)( GLcontext *ctx );
  60    GLuint               vertex_size;
  61    GLuint               vertex_format;
  62 } setup_tab[MGA_MAX_SETUP];
  63
  64
  65 #define TINY_VERTEX_FORMAT      0
  66 #define NOTEX_VERTEX_FORMAT     0
  67 #define TEX0_VERTEX_FORMAT      (MGA_A|MGA_S|MGA_F)
  68 #define TEX1_VERTEX_FORMAT      (MGA_A|MGA_S|MGA_F|MGA_T2)
  69 #define PROJ_TEX1_VERTEX_FORMAT 0
  70 #define TEX2_VERTEX_FORMAT      0
  71 #define TEX3_VERTEX_FORMAT      0
  72 #define PROJ_TEX3_VERTEX_FORMAT 0
  73
  74 #define DO_XYZW (IND & MGA_XYZW_BIT)
  75 #define DO_RGBA (IND & MGA_RGBA_BIT)
  76 #define DO_SPEC (IND & MGA_SPEC_BIT)
  77 #define DO_FOG  (IND & MGA_FOG_BIT)
  78 #define DO_TEX0 (IND & MGA_TEX0_BIT)
  79 #define DO_TEX1 (IND & MGA_TEX1_BIT)
  80 #define DO_TEX2 0
  81 #define DO_TEX3 0
  82 #define DO_PTEX (IND & MGA_PTEX_BIT)
  83
  84
  85 #define VERTEX mgaVertex
  86 #define VERTEX_COLOR mga_color_t
  87 #define LOCALVARS mgaContextPtr mmesa = MGA_CONTEXT(ctx);
  88 #define GET_VIEWPORT_MAT() mmesa->hw_viewport
  89 #define GET_TEXSOURCE(n)  mmesa->tmu_source[n]
  90 #define GET_VERTEX_FORMAT() mmesa->vertex_format
  91 #define GET_VERTEX_STORE() mmesa->verts
  92 #define GET_VERTEX_SIZE() mmesa->vertex_size * sizeof(GLuint)
  93
  94 #define HAVE_HW_VIEWPORT    0
  95 #define HAVE_HW_DIVIDE      0
  96 #define HAVE_RGBA_COLOR     0
  97 #define HAVE_TINY_VERTICES  0
  98 #define HAVE_NOTEX_VERTICES 0
  99 #define HAVE_TEX0_VERTICES  1
 100 #define HAVE_TEX1_VERTICES  1
 101 #define HAVE_TEX2_VERTICES  0
 102 #define HAVE_TEX3_VERTICES  0
 103 #define HAVE_PTEX_VERTICES  0
 104
 105 #define UNVIEWPORT_VARS                                 \
 106    const GLfloat dx = - mmesa->drawX - SUBPIXEL_X;      \
 107    const GLfloat dy = (mmesa->driDrawable->h +          \
 108                        mmesa->drawY + SUBPIXEL_Y);      \
 109    const GLfloat sz = 1.0 / mmesa->depth_scale
 110
 111 #define UNVIEWPORT_X(x)    x      + dx;
 112 #define UNVIEWPORT_Y(y)  - y      + dy;
 113 #define UNVIEWPORT_Z(z)    z * sz;
 114
 115 #define PTEX_FALLBACK() FALLBACK(ctx, MGA_FALLBACK_TEXTURE, 1)
 116
 117 #define INTERP_VERTEX setup_tab[mmesa->SetupIndex].interp
 118 #define COPY_PV_VERTEX setup_tab[mmesa->SetupIndex].copy_pv
 119
 120
 121 /***********************************************************************
 122  *         Generate  pv-copying and translation functions              *
 123  ***********************************************************************/
 124
 125 #define TAG(x) mga_##x
 126 #include "tnl_dd/t_dd_vb.c"
 127
 128 /***********************************************************************
 129  *             Generate vertex emit and interp functions               *
 130  ***********************************************************************/
 131
 132
 133 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT)
 134 #define TAG(x) x##_wg
 135 #include "tnl_dd/t_dd_vbtmp.h"
 136
 137 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_SPEC_BIT)
 138 #define TAG(x) x##_wgs
 139 #include "tnl_dd/t_dd_vbtmp.h"
 140
 141 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_TEX0_BIT)
 142 #define TAG(x) x##_wgt0
 143 #include "tnl_dd/t_dd_vbtmp.h"
 144
 145 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
 146 #define TAG(x) x##_wgt0t1
 147 #include "tnl_dd/t_dd_vbtmp.h"
 148
 149 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_TEX0_BIT|MGA_PTEX_BIT)
 150 #define TAG(x) x##_wgpt0
 151 #include "tnl_dd/t_dd_vbtmp.h"
 152
 153 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT)
 154 #define TAG(x) x##_wgst0
 155 #include "tnl_dd/t_dd_vbtmp.h"
 156
 157 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
 158 #define TAG(x) x##_wgst0t1
 159 #include "tnl_dd/t_dd_vbtmp.h"
 160
 161 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT|MGA_PTEX_BIT)
 162 #define TAG(x) x##_wgspt0
 163 #include "tnl_dd/t_dd_vbtmp.h"
 164
 165 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_FOG_BIT)
 166 #define TAG(x) x##_wgf
 167 #include "tnl_dd/t_dd_vbtmp.h"
 168
 169 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_FOG_BIT|MGA_SPEC_BIT)
 170 #define TAG(x) x##_wgfs
 171 #include "tnl_dd/t_dd_vbtmp.h"
 172
 173 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_FOG_BIT|MGA_TEX0_BIT)
 174 #define TAG(x) x##_wgft0
 175 #include "tnl_dd/t_dd_vbtmp.h"
 176
 177 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_FOG_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
 178 #define TAG(x) x##_wgft0t1
 179 #include "tnl_dd/t_dd_vbtmp.h"
 180
 181 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_FOG_BIT|MGA_TEX0_BIT|MGA_PTEX_BIT)
 182 #define TAG(x) x##_wgfpt0
 183 #include "tnl_dd/t_dd_vbtmp.h"
 184
 185 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_FOG_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT)
 186 #define TAG(x) x##_wgfst0
 187 #include "tnl_dd/t_dd_vbtmp.h"
 188
 189 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_FOG_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
 190 #define TAG(x) x##_wgfst0t1
 191 #include "tnl_dd/t_dd_vbtmp.h"
 192
 193 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_FOG_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT|MGA_PTEX_BIT)
 194 #define TAG(x) x##_wgfspt0
 195 #include "tnl_dd/t_dd_vbtmp.h"
 196
 197 #define IND (MGA_TEX0_BIT)
 198 #define TAG(x) x##_t0
 199 #include "tnl_dd/t_dd_vbtmp.h"
 200
 201 #define IND (MGA_TEX0_BIT|MGA_TEX1_BIT)
 202 #define TAG(x) x##_t0t1
 203 #include "tnl_dd/t_dd_vbtmp.h"
 204
 205 #define IND (MGA_FOG_BIT)
 206 #define TAG(x) x##_f
 207 #include "tnl_dd/t_dd_vbtmp.h"
 208
 209 #define IND (MGA_FOG_BIT|MGA_TEX0_BIT)
 210 #define TAG(x) x##_ft0
 211 #include "tnl_dd/t_dd_vbtmp.h"
 212
 213 #define IND (MGA_FOG_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
 214 #define TAG(x) x##_ft0t1
 215 #include "tnl_dd/t_dd_vbtmp.h"
 216
 217 #define IND (MGA_RGBA_BIT)
 218 #define TAG(x) x##_g
 219 #include "tnl_dd/t_dd_vbtmp.h"
 220
 221 #define IND (MGA_RGBA_BIT|MGA_SPEC_BIT)
 222 #define TAG(x) x##_gs
 223 #include "tnl_dd/t_dd_vbtmp.h"
 224
 225 #define IND (MGA_RGBA_BIT|MGA_TEX0_BIT)
 226 #define TAG(x) x##_gt0
 227 #include "tnl_dd/t_dd_vbtmp.h"
 228
 229 #define IND (MGA_RGBA_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
 230 #define TAG(x) x##_gt0t1
 231 #include "tnl_dd/t_dd_vbtmp.h"
 232
 233 #define IND (MGA_RGBA_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT)
 234 #define TAG(x) x##_gst0
 235 #include "tnl_dd/t_dd_vbtmp.h"
 236
 237 #define IND (MGA_RGBA_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
 238 #define TAG(x) x##_gst0t1
 239 #include "tnl_dd/t_dd_vbtmp.h"
 240
 241 #define IND (MGA_RGBA_BIT|MGA_FOG_BIT)
 242 #define TAG(x) x##_gf
 243 #include "tnl_dd/t_dd_vbtmp.h"
 244
 245 #define IND (MGA_RGBA_BIT|MGA_FOG_BIT|MGA_SPEC_BIT)
 246 #define TAG(x) x##_gfs
 247 #include "tnl_dd/t_dd_vbtmp.h"
 248
 249 #define IND (MGA_RGBA_BIT|MGA_FOG_BIT|MGA_TEX0_BIT)
 250 #define TAG(x) x##_gft0
 251 #include "tnl_dd/t_dd_vbtmp.h"
 252
 253 #define IND (MGA_RGBA_BIT|MGA_FOG_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
 254 #define TAG(x) x##_gft0t1
 255 #include "tnl_dd/t_dd_vbtmp.h"
 256
 257 #define IND (MGA_RGBA_BIT|MGA_FOG_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT)
 258 #define TAG(x) x##_gfst0
 259 #include "tnl_dd/t_dd_vbtmp.h"
 260
 261 #define IND (MGA_RGBA_BIT|MGA_FOG_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
 262 #define TAG(x) x##_gfst0t1
 263 #include "tnl_dd/t_dd_vbtmp.h"
 264
 265
 266 static void init_setup_tab( void )
 267 {
 268    init_wg();
 269    init_wgs();
 270    init_wgt0();
 271    init_wgt0t1();
 272    init_wgpt0();
 273    init_wgst0();
 274    init_wgst0t1();
 275    init_wgspt0();
 276    init_wgf();
 277    init_wgfs();
 278    init_wgft0();
 279    init_wgft0t1();
 280    init_wgfpt0();
 281    init_wgfst0();
 282    init_wgfst0t1();
 283    init_wgfspt0();
 284    init_t0();
 285    init_t0t1();
 286    init_f();
 287    init_ft0();
 288    init_ft0t1();
 289    init_g();
 290    init_gs();
 291    init_gt0();
 292    init_gt0t1();
 293    init_gst0();
 294    init_gst0t1();
 295    init_gf();
 296    init_gfs();
 297    init_gft0();
 298    init_gft0t1();
 299    init_gfst0();
 300    init_gfst0t1();
 301 }
 302
 303
 304
 305
 306 void mgaPrintSetupFlags(char *msg, GLuint flags )
 307 {
 308    fprintf(stderr, "%s: %d %s%s%s%s%s%s\n",
 309            msg,
 310            (int)flags,
 311            (flags & MGA_XYZW_BIT)      ? " xyzw," : "",
 312            (flags & MGA_RGBA_BIT)     ? " rgba," : "",
 313            (flags & MGA_SPEC_BIT)     ? " spec," : "",
 314            (flags & MGA_FOG_BIT)      ? " fog," : "",
 315            (flags & MGA_TEX0_BIT)     ? " tex-0," : "",
 316            (flags & MGA_TEX1_BIT)     ? " tex-1," : "");
 317 }
 318
 319
 320 void mgaCheckTexSizes( GLcontext *ctx )
 321 {
 322    mgaContextPtr mmesa = MGA_CONTEXT( ctx );
 323    TNLcontext *tnl = TNL_CONTEXT(ctx);
 324
 325    /*fprintf(stderr, "%s\n", __FUNCTION__);*/
 326
 327    if (!setup_tab[mmesa->SetupIndex].check_tex_sizes(ctx)) {
 328       mmesa->SetupIndex |= MGA_PTEX_BIT;
 329       mmesa->SetupNewInputs = ~0;
 330
 331       if (!mmesa->Fallback &&
 332           !(ctx->_TriangleCaps & (DD_TRI_LIGHT_TWOSIDE|DD_TRI_UNFILLED))) {
 333          tnl->Driver.Render.Interp = setup_tab[mmesa->SetupIndex].interp;
 334          tnl->Driver.Render.CopyPV = setup_tab[mmesa->SetupIndex].copy_pv;
 335       }
 336       if (mmesa->Fallback) {
 337          tnl->Driver.Render.Start(ctx);
 338       }
 339    }
 340 }
 341
 342
 343 void mgaBuildVertices( GLcontext *ctx,
 344                        GLuint start,
 345                        GLuint count,
 346                        GLuint newinputs )
 347 {
 348    mgaContextPtr mmesa = MGA_CONTEXT( ctx );
 349    GLuint stride = mmesa->vertex_size * sizeof(int);
 350    GLubyte *v = ((GLubyte *)mmesa->verts + (start * stride));
 351
 352    newinputs |= mmesa->SetupNewInputs;
 353    mmesa->SetupNewInputs = 0;
 354
 355    if (!newinputs)
 356       return;
 357
 358    if (newinputs & VERT_BIT_POS) {
 359       setup_tab[mmesa->SetupIndex].emit( ctx, start, count, v, stride );
 360    } else {
 361       GLuint ind = 0;
 362
 363       if (newinputs & VERT_BIT_COLOR0)
 364          ind |= MGA_RGBA_BIT;
 365
 366       if (newinputs & VERT_BIT_COLOR1)
 367          ind |= MGA_SPEC_BIT;
 368
 369       if (newinputs & VERT_BIT_TEX0)
 370          ind |= MGA_TEX0_BIT;
 371
 372       if (newinputs & VERT_BIT_TEX1)
 373          ind |= MGA_TEX0_BIT|MGA_TEX1_BIT;
 374
 375       if (newinputs & VERT_BIT_FOG)
 376          ind |= MGA_FOG_BIT;
 377
 378       if (mmesa->SetupIndex & MGA_PTEX_BIT)
 379          ind = ~0;
 380
 381       ind &= mmesa->SetupIndex;
 382
 383       if (ind) {
 384          setup_tab[ind].emit( ctx, start, count, v, stride );
 385       }
 386    }
 387 }
 388
 389
 390 void mgaChooseVertexState( GLcontext *ctx )
 391 {
 392    mgaContextPtr mmesa = MGA_CONTEXT( ctx );
 393    TNLcontext *tnl = TNL_CONTEXT(ctx);
 394    GLuint ind = MGA_XYZW_BIT|MGA_RGBA_BIT;
 395
 396    if (ctx->_TriangleCaps & DD_SEPARATE_SPECULAR)
 397       ind |= MGA_SPEC_BIT;
 398
 399    if (ctx->Fog.Enabled)
 400       ind |= MGA_FOG_BIT;
 401
 402    if (ctx->Texture._EnabledUnits & 0x2) {
 403       /* unit 1 enabled */
 404       if (ctx->Texture._EnabledUnits & 0x1) {
 405          /* unit 0 enabled */
 406          ind |= MGA_TEX1_BIT|MGA_TEX0_BIT;
 407       }
 408       else {
 409          ind |= MGA_TEX0_BIT;
 410       }
 411    }
 412    else if (ctx->Texture._EnabledUnits & 0x1) {
 413       /* unit 0 enabled */
 414       ind |= MGA_TEX0_BIT;
 415    }
 416
 417    mmesa->SetupIndex = ind;
 418
 419    if (ctx->_TriangleCaps & (DD_TRI_LIGHT_TWOSIDE|DD_TRI_UNFILLED)) {
 420       tnl->Driver.Render.Interp = mga_interp_extras;
 421       tnl->Driver.Render.CopyPV = mga_copy_pv_extras;
 422    } else {
 423       tnl->Driver.Render.Interp = setup_tab[ind].interp;
 424       tnl->Driver.Render.CopyPV = setup_tab[ind].copy_pv;
 425    }
 426
 427    if (setup_tab[ind].vertex_format != mmesa->vertex_format) {
 428       FLUSH_BATCH(mmesa);
 429       mmesa->dirty |= MGA_UPLOAD_PIPE;
 430       mmesa->vertex_format = setup_tab[ind].vertex_format;
 431       mmesa->vertex_size = setup_tab[ind].vertex_size;
 432    }
 433 }
 434
 435
 436
 437 void *mga_emit_contiguous_verts( GLcontext *ctx,
 438                                  GLuint start,
 439                                  GLuint count,
 440                                  void *dest)
 441 {
 442    mgaContextPtr mmesa = MGA_CONTEXT(ctx);
 443    GLuint stride = mmesa->vertex_size * 4;
 444    setup_tab[mmesa->SetupIndex].emit( ctx, start, count, dest, stride );
 445    return (void *)((char *)dest + stride * (count - start));
 446 }
 447
 448
 449
 450 void mgaInitVB( GLcontext *ctx )
 451 {
 452    mgaContextPtr mmesa = MGA_CONTEXT(ctx);
 453    GLuint size = TNL_CONTEXT(ctx)->vb.Size;
 454
 455    mmesa->verts = (GLubyte *)ALIGN_MALLOC(size * sizeof(mgaVertex), 32);
 456
 457    {
 458       static int firsttime = 1;
 459       if (firsttime) {
 460          init_setup_tab();
 461          firsttime = 0;
 462       }
 463    }
 464
 465    mmesa->dirty |= MGA_UPLOAD_PIPE;
 466    mmesa->vertex_format = setup_tab[0].vertex_format;
 467    mmesa->vertex_size = setup_tab[0].vertex_size;
 468 }
 469
 470
 471 void mgaFreeVB( GLcontext *ctx )
 472 {
 473    mgaContextPtr mmesa = MGA_CONTEXT(ctx);
 474    if (mmesa->verts) {
 475       ALIGN_FREE(mmesa->verts);
 476       mmesa->verts = 0;
 477    }
 478 }
 479