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/swrast.h"
  43
  44
  45 #define MGA_TEX1_BIT       0x1
  46 #define MGA_TEX0_BIT       0x2
  47 #define MGA_RGBA_BIT       0x4
  48 #define MGA_SPEC_BIT       0x8
  49 #define MGA_FOG_BIT        0x10
  50 #define MGA_XYZW_BIT       0x20
  51 #define MGA_PTEX_BIT       0x40
  52 #define MGA_MAX_SETUP      0x80
  53
  54 static struct {
  55    void                (*emit)( struct gl_context *, GLuint, GLuint, void *, GLuint );
  56    tnl_interp_func              interp;
  57    tnl_copy_pv_func             copy_pv;
  58    GLboolean           (*check_tex_sizes)( struct gl_context *ctx );
  59    GLuint               vertex_size;
  60    GLuint               vertex_format;
  61 } setup_tab[MGA_MAX_SETUP];
  62
  63
  64 #define TINY_VERTEX_FORMAT      0
  65 #define NOTEX_VERTEX_FORMAT     0
  66 #define TEX0_VERTEX_FORMAT      (MGA_A|MGA_S|MGA_F)
  67 #define TEX1_VERTEX_FORMAT      (MGA_A|MGA_S|MGA_F|MGA_T2)
  68 #define PROJ_TEX1_VERTEX_FORMAT 0
  69 #define TEX2_VERTEX_FORMAT      0
  70 #define TEX3_VERTEX_FORMAT      0
  71 #define PROJ_TEX3_VERTEX_FORMAT 0
  72
  73 #define DO_XYZW (IND & MGA_XYZW_BIT)
  74 #define DO_RGBA (IND & MGA_RGBA_BIT)
  75 #define DO_SPEC (IND & MGA_SPEC_BIT)
  76 #define DO_FOG  (IND & MGA_FOG_BIT)
  77 #define DO_TEX0 (IND & MGA_TEX0_BIT)
  78 #define DO_TEX1 (IND & MGA_TEX1_BIT)
  79 #define DO_TEX2 0
  80 #define DO_TEX3 0
  81 #define DO_PTEX (IND & MGA_PTEX_BIT)
  82
  83
  84 #define VERTEX mgaVertex
  85 #define VERTEX_COLOR mga_color_t
  86 #define LOCALVARS mgaContextPtr mmesa = MGA_CONTEXT(ctx);
  87 #define GET_VIEWPORT_MAT() mmesa->hw_viewport
  88 #define GET_TEXSOURCE(n)  mmesa->tmu_source[n]
  89 #define GET_VERTEX_FORMAT() mmesa->vertex_format
  90 #define GET_VERTEX_STORE() mmesa->verts
  91 #define GET_VERTEX_SIZE() mmesa->vertex_size * sizeof(GLuint)
  92
  93 #define HAVE_HW_VIEWPORT    0
  94 #define HAVE_HW_DIVIDE      0
  95 #define HAVE_RGBA_COLOR     0
  96 #define HAVE_TINY_VERTICES  0
  97 #define HAVE_NOTEX_VERTICES 0
  98 #define HAVE_TEX0_VERTICES  1
  99 #define HAVE_TEX1_VERTICES  1
 100 #define HAVE_TEX2_VERTICES  0
 101 #define HAVE_TEX3_VERTICES  0
 102 #define HAVE_PTEX_VERTICES  0
 103
 104 #define UNVIEWPORT_VARS                                 \
 105    const GLfloat dx = - mmesa->drawX - SUBPIXEL_X;      \
 106    const GLfloat dy = (mmesa->driDrawable->h +          \
 107                        mmesa->drawY + SUBPIXEL_Y);      \
 108    const GLfloat sz = 1.0 / mmesa->depth_scale
 109
 110 #define UNVIEWPORT_X(x)    x      + dx;
 111 #define UNVIEWPORT_Y(y)  - y      + dy;
 112 #define UNVIEWPORT_Z(z)    z * sz;
 113
 114 #define PTEX_FALLBACK() FALLBACK(ctx, MGA_FALLBACK_TEXTURE, 1)
 115
 116 #define INTERP_VERTEX setup_tab[mmesa->SetupIndex].interp
 117 #define COPY_PV_VERTEX setup_tab[mmesa->SetupIndex].copy_pv
 118
 119
 120 /***********************************************************************
 121  *         Generate  pv-copying and translation functions              *
 122  ***********************************************************************/
 123
 124 #define TAG(x) mga_##x
 125 #include "tnl_dd/t_dd_vb.c"
 126
 127 /***********************************************************************
 128  *             Generate vertex emit and interp functions               *
 129  ***********************************************************************/
 130
 131
 132 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT)
 133 #define TAG(x) x##_wg
 134 #include "tnl_dd/t_dd_vbtmp.h"
 135
 136 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_SPEC_BIT)
 137 #define TAG(x) x##_wgs
 138 #include "tnl_dd/t_dd_vbtmp.h"
 139
 140 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_TEX0_BIT)
 141 #define TAG(x) x##_wgt0
 142 #include "tnl_dd/t_dd_vbtmp.h"
 143
 144 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
 145 #define TAG(x) x##_wgt0t1
 146 #include "tnl_dd/t_dd_vbtmp.h"
 147
 148 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_TEX0_BIT|MGA_PTEX_BIT)
 149 #define TAG(x) x##_wgpt0
 150 #include "tnl_dd/t_dd_vbtmp.h"
 151
 152 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT)
 153 #define TAG(x) x##_wgst0
 154 #include "tnl_dd/t_dd_vbtmp.h"
 155
 156 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
 157 #define TAG(x) x##_wgst0t1
 158 #include "tnl_dd/t_dd_vbtmp.h"
 159
 160 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT|MGA_PTEX_BIT)
 161 #define TAG(x) x##_wgspt0
 162 #include "tnl_dd/t_dd_vbtmp.h"
 163
 164 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_FOG_BIT)
 165 #define TAG(x) x##_wgf
 166 #include "tnl_dd/t_dd_vbtmp.h"
 167
 168 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_FOG_BIT|MGA_SPEC_BIT)
 169 #define TAG(x) x##_wgfs
 170 #include "tnl_dd/t_dd_vbtmp.h"
 171
 172 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_FOG_BIT|MGA_TEX0_BIT)
 173 #define TAG(x) x##_wgft0
 174 #include "tnl_dd/t_dd_vbtmp.h"
 175
 176 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_FOG_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
 177 #define TAG(x) x##_wgft0t1
 178 #include "tnl_dd/t_dd_vbtmp.h"
 179
 180 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_FOG_BIT|MGA_TEX0_BIT|MGA_PTEX_BIT)
 181 #define TAG(x) x##_wgfpt0
 182 #include "tnl_dd/t_dd_vbtmp.h"
 183
 184 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_FOG_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT)
 185 #define TAG(x) x##_wgfst0
 186 #include "tnl_dd/t_dd_vbtmp.h"
 187
 188 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_FOG_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
 189 #define TAG(x) x##_wgfst0t1
 190 #include "tnl_dd/t_dd_vbtmp.h"
 191
 192 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_FOG_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT|MGA_PTEX_BIT)
 193 #define TAG(x) x##_wgfspt0
 194 #include "tnl_dd/t_dd_vbtmp.h"
 195
 196 #define IND (MGA_TEX0_BIT)
 197 #define TAG(x) x##_t0
 198 #include "tnl_dd/t_dd_vbtmp.h"
 199
 200 #define IND (MGA_TEX0_BIT|MGA_TEX1_BIT)
 201 #define TAG(x) x##_t0t1
 202 #include "tnl_dd/t_dd_vbtmp.h"
 203
 204 #define IND (MGA_FOG_BIT)
 205 #define TAG(x) x##_f
 206 #include "tnl_dd/t_dd_vbtmp.h"
 207
 208 #define IND (MGA_FOG_BIT|MGA_TEX0_BIT)
 209 #define TAG(x) x##_ft0
 210 #include "tnl_dd/t_dd_vbtmp.h"
 211
 212 #define IND (MGA_FOG_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
 213 #define TAG(x) x##_ft0t1
 214 #include "tnl_dd/t_dd_vbtmp.h"
 215
 216 #define IND (MGA_RGBA_BIT)
 217 #define TAG(x) x##_g
 218 #include "tnl_dd/t_dd_vbtmp.h"
 219
 220 #define IND (MGA_RGBA_BIT|MGA_SPEC_BIT)
 221 #define TAG(x) x##_gs
 222 #include "tnl_dd/t_dd_vbtmp.h"
 223
 224 #define IND (MGA_RGBA_BIT|MGA_TEX0_BIT)
 225 #define TAG(x) x##_gt0
 226 #include "tnl_dd/t_dd_vbtmp.h"
 227
 228 #define IND (MGA_RGBA_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
 229 #define TAG(x) x##_gt0t1
 230 #include "tnl_dd/t_dd_vbtmp.h"
 231
 232 #define IND (MGA_RGBA_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT)
 233 #define TAG(x) x##_gst0
 234 #include "tnl_dd/t_dd_vbtmp.h"
 235
 236 #define IND (MGA_RGBA_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
 237 #define TAG(x) x##_gst0t1
 238 #include "tnl_dd/t_dd_vbtmp.h"
 239
 240 #define IND (MGA_RGBA_BIT|MGA_FOG_BIT)
 241 #define TAG(x) x##_gf
 242 #include "tnl_dd/t_dd_vbtmp.h"
 243
 244 #define IND (MGA_RGBA_BIT|MGA_FOG_BIT|MGA_SPEC_BIT)
 245 #define TAG(x) x##_gfs
 246 #include "tnl_dd/t_dd_vbtmp.h"
 247
 248 #define IND (MGA_RGBA_BIT|MGA_FOG_BIT|MGA_TEX0_BIT)
 249 #define TAG(x) x##_gft0
 250 #include "tnl_dd/t_dd_vbtmp.h"
 251
 252 #define IND (MGA_RGBA_BIT|MGA_FOG_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
 253 #define TAG(x) x##_gft0t1
 254 #include "tnl_dd/t_dd_vbtmp.h"
 255
 256 #define IND (MGA_RGBA_BIT|MGA_FOG_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT)
 257 #define TAG(x) x##_gfst0
 258 #include "tnl_dd/t_dd_vbtmp.h"
 259
 260 #define IND (MGA_RGBA_BIT|MGA_FOG_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
 261 #define TAG(x) x##_gfst0t1
 262 #include "tnl_dd/t_dd_vbtmp.h"
 263
 264
 265 static void init_setup_tab( void )
 266 {
 267    init_wg();
 268    init_wgs();
 269    init_wgt0();
 270    init_wgt0t1();
 271    init_wgpt0();
 272    init_wgst0();
 273    init_wgst0t1();
 274    init_wgspt0();
 275    init_wgf();
 276    init_wgfs();
 277    init_wgft0();
 278    init_wgft0t1();
 279    init_wgfpt0();
 280    init_wgfst0();
 281    init_wgfst0t1();
 282    init_wgfspt0();
 283    init_t0();
 284    init_t0t1();
 285    init_f();
 286    init_ft0();
 287    init_ft0t1();
 288    init_g();
 289    init_gs();
 290    init_gt0();
 291    init_gt0t1();
 292    init_gst0();
 293    init_gst0t1();
 294    init_gf();
 295    init_gfs();
 296    init_gft0();
 297    init_gft0t1();
 298    init_gfst0();
 299    init_gfst0t1();
 300 }
 301
 302
 303
 304
 305 void mgaPrintSetupFlags(char *msg, GLuint flags )
 306 {
 307    fprintf(stderr, "%s: %d %s%s%s%s%s%s\n",
 308            msg,
 309            (int)flags,
 310            (flags & MGA_XYZW_BIT)      ? " xyzw," : "",
 311            (flags & MGA_RGBA_BIT)     ? " rgba," : "",
 312            (flags & MGA_SPEC_BIT)     ? " spec," : "",
 313            (flags & MGA_FOG_BIT)      ? " fog," : "",
 314            (flags & MGA_TEX0_BIT)     ? " tex-0," : "",
 315            (flags & MGA_TEX1_BIT)     ? " tex-1," : "");
 316 }
 317
 318
 319 void mgaCheckTexSizes( struct gl_context *ctx )
 320 {
 321    mgaContextPtr mmesa = MGA_CONTEXT( ctx );
 322    TNLcontext *tnl = TNL_CONTEXT(ctx);
 323
 324    /*fprintf(stderr, "%s\n", __FUNCTION__);*/
 325
 326    if (!setup_tab[mmesa->SetupIndex].check_tex_sizes(ctx)) {
 327       mmesa->SetupIndex |= MGA_PTEX_BIT;
 328       mmesa->SetupNewInputs = ~0;
 329
 330       if (!mmesa->Fallback &&
 331           !(ctx->_TriangleCaps & (DD_TRI_LIGHT_TWOSIDE|DD_TRI_UNFILLED))) {
 332          tnl->Driver.Render.Interp = setup_tab[mmesa->SetupIndex].interp;
 333          tnl->Driver.Render.CopyPV = setup_tab[mmesa->SetupIndex].copy_pv;
 334       }
 335       if (mmesa->Fallback) {
 336          tnl->Driver.Render.Start(ctx);
 337       }
 338    }
 339 }
 340
 341
 342 void mgaBuildVertices( struct gl_context *ctx,
 343                        GLuint start,
 344                        GLuint count,
 345                        GLuint newinputs )
 346 {
 347    mgaContextPtr mmesa = MGA_CONTEXT( ctx );
 348    GLuint stride = mmesa->vertex_size * sizeof(int);
 349    GLubyte *v = ((GLubyte *)mmesa->verts + (start * stride));
 350
 351    newinputs |= mmesa->SetupNewInputs;
 352    mmesa->SetupNewInputs = 0;
 353
 354    if (!newinputs)
 355       return;
 356
 357    if (newinputs & VERT_BIT_POS) {
 358       setup_tab[mmesa->SetupIndex].emit( ctx, start, count, v, stride );
 359    } else {
 360       GLuint ind = 0;
 361
 362       if (newinputs & VERT_BIT_COLOR0)
 363          ind |= MGA_RGBA_BIT;
 364
 365       if (newinputs & VERT_BIT_COLOR1)
 366          ind |= MGA_SPEC_BIT;
 367
 368       if (newinputs & VERT_BIT_TEX0)
 369          ind |= MGA_TEX0_BIT;
 370
 371       if (newinputs & VERT_BIT_TEX1)
 372          ind |= MGA_TEX0_BIT|MGA_TEX1_BIT;
 373
 374       if (newinputs & VERT_BIT_FOG)
 375          ind |= MGA_FOG_BIT;
 376
 377       if (mmesa->SetupIndex & MGA_PTEX_BIT)
 378          ind = ~0;
 379
 380       ind &= mmesa->SetupIndex;
 381
 382       if (ind) {
 383          setup_tab[ind].emit( ctx, start, count, v, stride );
 384       }
 385    }
 386 }
 387
 388
 389 void mgaChooseVertexState( struct gl_context *ctx )
 390 {
 391    mgaContextPtr mmesa = MGA_CONTEXT( ctx );
 392    TNLcontext *tnl = TNL_CONTEXT(ctx);
 393    GLuint ind = MGA_XYZW_BIT|MGA_RGBA_BIT;
 394
 395    if (ctx->_TriangleCaps & DD_SEPARATE_SPECULAR)
 396       ind |= MGA_SPEC_BIT;
 397
 398    if (ctx->Fog.Enabled)
 399       ind |= MGA_FOG_BIT;
 400
 401    if (ctx->Texture._EnabledUnits & 0x2) {
 402       /* unit 1 enabled */
 403       if (ctx->Texture._EnabledUnits & 0x1) {
 404          /* unit 0 enabled */
 405          ind |= MGA_TEX1_BIT|MGA_TEX0_BIT;
 406       }
 407       else {
 408          ind |= MGA_TEX0_BIT;
 409       }
 410    }
 411    else if (ctx->Texture._EnabledUnits & 0x1) {
 412       /* unit 0 enabled */
 413       ind |= MGA_TEX0_BIT;
 414    }
 415
 416    mmesa->SetupIndex = ind;
 417
 418    if (ctx->_TriangleCaps & (DD_TRI_LIGHT_TWOSIDE|DD_TRI_UNFILLED)) {
 419       tnl->Driver.Render.Interp = mga_interp_extras;
 420       tnl->Driver.Render.CopyPV = mga_copy_pv_extras;
 421    } else {
 422       tnl->Driver.Render.Interp = setup_tab[ind].interp;
 423       tnl->Driver.Render.CopyPV = setup_tab[ind].copy_pv;
 424    }
 425
 426    if (setup_tab[ind].vertex_format != mmesa->vertex_format) {
 427       FLUSH_BATCH(mmesa);
 428       mmesa->dirty |= MGA_UPLOAD_PIPE;
 429       mmesa->vertex_format = setup_tab[ind].vertex_format;
 430       mmesa->vertex_size = setup_tab[ind].vertex_size;
 431    }
 432 }
 433
 434
 435
 436 void *mga_emit_contiguous_verts( struct gl_context *ctx,
 437                                  GLuint start,
 438                                  GLuint count,
 439                                  void *dest)
 440 {
 441    mgaContextPtr mmesa = MGA_CONTEXT(ctx);
 442    GLuint stride = mmesa->vertex_size * 4;
 443    setup_tab[mmesa->SetupIndex].emit( ctx, start, count, dest, stride );
 444    return (void *)((char *)dest + stride * (count - start));
 445 }
 446
 447
 448
 449 void mgaInitVB( struct gl_context *ctx )
 450 {
 451    mgaContextPtr mmesa = MGA_CONTEXT(ctx);
 452    GLuint size = TNL_CONTEXT(ctx)->vb.Size;
 453
 454    mmesa->verts = (GLubyte *)_mesa_align_malloc(size * sizeof(mgaVertex), 32);
 455
 456    {
 457       static int firsttime = 1;
 458       if (firsttime) {
 459          init_setup_tab();
 460          firsttime = 0;
 461       }
 462    }
 463
 464    mmesa->dirty |= MGA_UPLOAD_PIPE;
 465    mmesa->vertex_format = setup_tab[0].vertex_format;
 466    mmesa->vertex_size = setup_tab[0].vertex_size;
 467 }
 468
 469
 470 void mgaFreeVB( struct gl_context *ctx )
 471 {
 472    mgaContextPtr mmesa = MGA_CONTEXT(ctx);
 473    if (mmesa->verts) {
 474       _mesa_align_free(mmesa->verts);
 475       mmesa->verts = 0;
 476    }
 477 }
 478