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 /* $XFree86: xc/lib/GL/mesa/src/drv/mga/mgavb.c,v 1.15 2003/03/26 20:43:49 tsi Exp $ */
  28
  29 #include <stdlib.h>
  30 #include "mgacontext.h"
  31 #include "mgavb.h"
  32 #include "mgatris.h"
  33 #include "mgaioctl.h"
  34 #include "mga_xmesa.h"
  35
  36 #include "glheader.h"
  37 #include "mtypes.h"
  38 #include "imports.h"
  39 #include "macros.h"
  40 #include "colormac.h"
  41
  42 #include "tnl/t_context.h"
  43 #include "swrast_setup/swrast_setup.h"
  44 #include "swrast/swrast.h"
  45
  46
  47 #define MGA_TEX1_BIT       0x1
  48 #define MGA_TEX0_BIT       0x2
  49 #define MGA_RGBA_BIT       0x4
  50 #define MGA_SPEC_BIT       0x8
  51 #define MGA_FOG_BIT        0x10
  52 #define MGA_XYZW_BIT       0x20
  53 #define MGA_PTEX_BIT       0x40
  54 #define MGA_MAX_SETUP      0x80
  55
  56 static struct {
  57    void                (*emit)( GLcontext *, GLuint, GLuint, void *, GLuint );
  58    tnl_interp_func              interp;
  59    tnl_copy_pv_func             copy_pv;
  60    GLboolean           (*check_tex_sizes)( GLcontext *ctx );
  61    GLuint               vertex_size;
  62    GLuint               vertex_format;
  63 } setup_tab[MGA_MAX_SETUP];
  64
  65
  66 #define TINY_VERTEX_FORMAT      0
  67 #define NOTEX_VERTEX_FORMAT     0
  68 #define TEX0_VERTEX_FORMAT      (MGA_A|MGA_S|MGA_F)
  69 #define TEX1_VERTEX_FORMAT      (MGA_A|MGA_S|MGA_F|MGA_T2)
  70 #define PROJ_TEX1_VERTEX_FORMAT 0
  71 #define TEX2_VERTEX_FORMAT      0
  72 #define TEX3_VERTEX_FORMAT      0
  73 #define PROJ_TEX3_VERTEX_FORMAT 0
  74
  75 #define DO_XYZW (IND & MGA_XYZW_BIT)
  76 #define DO_RGBA (IND & MGA_RGBA_BIT)
  77 #define DO_SPEC (IND & MGA_SPEC_BIT)
  78 #define DO_FOG  (IND & MGA_FOG_BIT)
  79 #define DO_TEX0 (IND & MGA_TEX0_BIT)
  80 #define DO_TEX1 (IND & MGA_TEX1_BIT)
  81 #define DO_TEX2 0
  82 #define DO_TEX3 0
  83 #define DO_PTEX (IND & MGA_PTEX_BIT)
  84
  85
  86 #define VERTEX mgaVertex
  87 #define VERTEX_COLOR mga_color_t
  88 #define LOCALVARS mgaContextPtr mmesa = MGA_CONTEXT(ctx);
  89 #define GET_VIEWPORT_MAT() mmesa->hw_viewport
  90 #define GET_TEXSOURCE(n)  mmesa->tmu_source[n]
  91 #define GET_VERTEX_FORMAT() mmesa->vertex_format
  92 #define GET_VERTEX_STORE() mmesa->verts
  93 #define GET_VERTEX_SIZE() mmesa->vertex_size * sizeof(GLuint)
  94
  95 #define HAVE_HW_VIEWPORT    0
  96 #define HAVE_HW_DIVIDE      0
  97 #define HAVE_RGBA_COLOR     0
  98 #define HAVE_TINY_VERTICES  0
  99 #define HAVE_NOTEX_VERTICES 0
 100 #define HAVE_TEX0_VERTICES  1
 101 #define HAVE_TEX1_VERTICES  1
 102 #define HAVE_TEX2_VERTICES  0
 103 #define HAVE_TEX3_VERTICES  0
 104 #define HAVE_PTEX_VERTICES  0
 105
 106 #define UNVIEWPORT_VARS                                 \
 107    const GLfloat dx = - mmesa->drawX - SUBPIXEL_X;      \
 108    const GLfloat dy = (mmesa->driDrawable->h +          \
 109                        mmesa->drawY + SUBPIXEL_Y);      \
 110    const GLfloat sz = 1.0 / mmesa->depth_scale
 111
 112 #define UNVIEWPORT_X(x)    x      + dx;
 113 #define UNVIEWPORT_Y(y)  - y      + dy;
 114 #define UNVIEWPORT_Z(z)    z * sz;
 115
 116 #define PTEX_FALLBACK() FALLBACK(ctx, MGA_FALLBACK_TEXTURE, 1)
 117
 118 #define INTERP_VERTEX setup_tab[mmesa->SetupIndex].interp
 119 #define COPY_PV_VERTEX setup_tab[mmesa->SetupIndex].copy_pv
 120
 121
 122 /***********************************************************************
 123  *         Generate  pv-copying and translation functions              *
 124  ***********************************************************************/
 125
 126 #define TAG(x) mga_##x
 127 #include "tnl_dd/t_dd_vb.c"
 128
 129 /***********************************************************************
 130  *             Generate vertex emit and interp functions               *
 131  ***********************************************************************/
 132
 133
 134 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT)
 135 #define TAG(x) x##_wg
 136 #include "tnl_dd/t_dd_vbtmp.h"
 137
 138 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_SPEC_BIT)
 139 #define TAG(x) x##_wgs
 140 #include "tnl_dd/t_dd_vbtmp.h"
 141
 142 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_TEX0_BIT)
 143 #define TAG(x) x##_wgt0
 144 #include "tnl_dd/t_dd_vbtmp.h"
 145
 146 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
 147 #define TAG(x) x##_wgt0t1
 148 #include "tnl_dd/t_dd_vbtmp.h"
 149
 150 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_TEX0_BIT|MGA_PTEX_BIT)
 151 #define TAG(x) x##_wgpt0
 152 #include "tnl_dd/t_dd_vbtmp.h"
 153
 154 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT)
 155 #define TAG(x) x##_wgst0
 156 #include "tnl_dd/t_dd_vbtmp.h"
 157
 158 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
 159 #define TAG(x) x##_wgst0t1
 160 #include "tnl_dd/t_dd_vbtmp.h"
 161
 162 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT|MGA_PTEX_BIT)
 163 #define TAG(x) x##_wgspt0
 164 #include "tnl_dd/t_dd_vbtmp.h"
 165
 166 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_FOG_BIT)
 167 #define TAG(x) x##_wgf
 168 #include "tnl_dd/t_dd_vbtmp.h"
 169
 170 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_FOG_BIT|MGA_SPEC_BIT)
 171 #define TAG(x) x##_wgfs
 172 #include "tnl_dd/t_dd_vbtmp.h"
 173
 174 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_FOG_BIT|MGA_TEX0_BIT)
 175 #define TAG(x) x##_wgft0
 176 #include "tnl_dd/t_dd_vbtmp.h"
 177
 178 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_FOG_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
 179 #define TAG(x) x##_wgft0t1
 180 #include "tnl_dd/t_dd_vbtmp.h"
 181
 182 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_FOG_BIT|MGA_TEX0_BIT|MGA_PTEX_BIT)
 183 #define TAG(x) x##_wgfpt0
 184 #include "tnl_dd/t_dd_vbtmp.h"
 185
 186 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_FOG_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT)
 187 #define TAG(x) x##_wgfst0
 188 #include "tnl_dd/t_dd_vbtmp.h"
 189
 190 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_FOG_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
 191 #define TAG(x) x##_wgfst0t1
 192 #include "tnl_dd/t_dd_vbtmp.h"
 193
 194 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_FOG_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT|MGA_PTEX_BIT)
 195 #define TAG(x) x##_wgfspt0
 196 #include "tnl_dd/t_dd_vbtmp.h"
 197
 198 #define IND (MGA_TEX0_BIT)
 199 #define TAG(x) x##_t0
 200 #include "tnl_dd/t_dd_vbtmp.h"
 201
 202 #define IND (MGA_TEX0_BIT|MGA_TEX1_BIT)
 203 #define TAG(x) x##_t0t1
 204 #include "tnl_dd/t_dd_vbtmp.h"
 205
 206 #define IND (MGA_FOG_BIT)
 207 #define TAG(x) x##_f
 208 #include "tnl_dd/t_dd_vbtmp.h"
 209
 210 #define IND (MGA_FOG_BIT|MGA_TEX0_BIT)
 211 #define TAG(x) x##_ft0
 212 #include "tnl_dd/t_dd_vbtmp.h"
 213
 214 #define IND (MGA_FOG_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
 215 #define TAG(x) x##_ft0t1
 216 #include "tnl_dd/t_dd_vbtmp.h"
 217
 218 #define IND (MGA_RGBA_BIT)
 219 #define TAG(x) x##_g
 220 #include "tnl_dd/t_dd_vbtmp.h"
 221
 222 #define IND (MGA_RGBA_BIT|MGA_SPEC_BIT)
 223 #define TAG(x) x##_gs
 224 #include "tnl_dd/t_dd_vbtmp.h"
 225
 226 #define IND (MGA_RGBA_BIT|MGA_TEX0_BIT)
 227 #define TAG(x) x##_gt0
 228 #include "tnl_dd/t_dd_vbtmp.h"
 229
 230 #define IND (MGA_RGBA_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
 231 #define TAG(x) x##_gt0t1
 232 #include "tnl_dd/t_dd_vbtmp.h"
 233
 234 #define IND (MGA_RGBA_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT)
 235 #define TAG(x) x##_gst0
 236 #include "tnl_dd/t_dd_vbtmp.h"
 237
 238 #define IND (MGA_RGBA_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
 239 #define TAG(x) x##_gst0t1
 240 #include "tnl_dd/t_dd_vbtmp.h"
 241
 242 #define IND (MGA_RGBA_BIT|MGA_FOG_BIT)
 243 #define TAG(x) x##_gf
 244 #include "tnl_dd/t_dd_vbtmp.h"
 245
 246 #define IND (MGA_RGBA_BIT|MGA_FOG_BIT|MGA_SPEC_BIT)
 247 #define TAG(x) x##_gfs
 248 #include "tnl_dd/t_dd_vbtmp.h"
 249
 250 #define IND (MGA_RGBA_BIT|MGA_FOG_BIT|MGA_TEX0_BIT)
 251 #define TAG(x) x##_gft0
 252 #include "tnl_dd/t_dd_vbtmp.h"
 253
 254 #define IND (MGA_RGBA_BIT|MGA_FOG_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
 255 #define TAG(x) x##_gft0t1
 256 #include "tnl_dd/t_dd_vbtmp.h"
 257
 258 #define IND (MGA_RGBA_BIT|MGA_FOG_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT)
 259 #define TAG(x) x##_gfst0
 260 #include "tnl_dd/t_dd_vbtmp.h"
 261
 262 #define IND (MGA_RGBA_BIT|MGA_FOG_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
 263 #define TAG(x) x##_gfst0t1
 264 #include "tnl_dd/t_dd_vbtmp.h"
 265
 266
 267 static void init_setup_tab( void )
 268 {
 269    init_wg();
 270    init_wgs();
 271    init_wgt0();
 272    init_wgt0t1();
 273    init_wgpt0();
 274    init_wgst0();
 275    init_wgst0t1();
 276    init_wgspt0();
 277    init_wgf();
 278    init_wgfs();
 279    init_wgft0();
 280    init_wgft0t1();
 281    init_wgfpt0();
 282    init_wgfst0();
 283    init_wgfst0t1();
 284    init_wgfspt0();
 285    init_t0();
 286    init_t0t1();
 287    init_f();
 288    init_ft0();
 289    init_ft0t1();
 290    init_g();
 291    init_gs();
 292    init_gt0();
 293    init_gt0t1();
 294    init_gst0();
 295    init_gst0t1();
 296    init_gf();
 297    init_gfs();
 298    init_gft0();
 299    init_gft0t1();
 300    init_gfst0();
 301    init_gfst0t1();
 302 }
 303
 304
 305
 306
 307 void mgaPrintSetupFlags(char *msg, GLuint flags )
 308 {
 309    fprintf(stderr, "%s: %d %s%s%s%s%s%s\n",
 310            msg,
 311            (int)flags,
 312            (flags & MGA_XYZW_BIT)      ? " xyzw," : "",
 313            (flags & MGA_RGBA_BIT)     ? " rgba," : "",
 314            (flags & MGA_SPEC_BIT)     ? " spec," : "",
 315            (flags & MGA_FOG_BIT)      ? " fog," : "",
 316            (flags & MGA_TEX0_BIT)     ? " tex-0," : "",
 317            (flags & MGA_TEX1_BIT)     ? " tex-1," : "");
 318 }
 319
 320
 321 void mgaCheckTexSizes( GLcontext *ctx )
 322 {
 323    mgaContextPtr mmesa = MGA_CONTEXT( ctx );
 324    TNLcontext *tnl = TNL_CONTEXT(ctx);
 325
 326    /*fprintf(stderr, "%s\n", __FUNCTION__);*/
 327
 328    if (!setup_tab[mmesa->SetupIndex].check_tex_sizes(ctx)) {
 329       mmesa->SetupIndex |= MGA_PTEX_BIT;
 330       mmesa->SetupNewInputs = ~0;
 331
 332       if (!mmesa->Fallback &&
 333           !(ctx->_TriangleCaps & (DD_TRI_LIGHT_TWOSIDE|DD_TRI_UNFILLED))) {
 334          tnl->Driver.Render.Interp = setup_tab[mmesa->SetupIndex].interp;
 335          tnl->Driver.Render.CopyPV = setup_tab[mmesa->SetupIndex].copy_pv;
 336       }
 337       if (mmesa->Fallback) {
 338          tnl->Driver.Render.Start(ctx);
 339       }
 340    }
 341 }
 342
 343
 344 void mgaBuildVertices( GLcontext *ctx,
 345                        GLuint start,
 346                        GLuint count,
 347                        GLuint newinputs )
 348 {
 349    mgaContextPtr mmesa = MGA_CONTEXT( ctx );
 350    GLuint stride = mmesa->vertex_size * sizeof(int);
 351    GLubyte *v = ((GLubyte *)mmesa->verts + (start * stride));
 352
 353    newinputs |= mmesa->SetupNewInputs;
 354    mmesa->SetupNewInputs = 0;
 355
 356    if (!newinputs)
 357       return;
 358
 359    if (newinputs & VERT_BIT_POS) {
 360       setup_tab[mmesa->SetupIndex].emit( ctx, start, count, v, stride );
 361    } else {
 362       GLuint ind = 0;
 363
 364       if (newinputs & VERT_BIT_COLOR0)
 365          ind |= MGA_RGBA_BIT;
 366
 367       if (newinputs & VERT_BIT_COLOR1)
 368          ind |= MGA_SPEC_BIT;
 369
 370       if (newinputs & VERT_BIT_TEX0)
 371          ind |= MGA_TEX0_BIT;
 372
 373       if (newinputs & VERT_BIT_TEX1)
 374          ind |= MGA_TEX0_BIT|MGA_TEX1_BIT;
 375
 376       if (newinputs & VERT_BIT_FOG)
 377          ind |= MGA_FOG_BIT;
 378
 379       if (mmesa->SetupIndex & MGA_PTEX_BIT)
 380          ind = ~0;
 381
 382       ind &= mmesa->SetupIndex;
 383
 384       if (ind) {
 385          setup_tab[ind].emit( ctx, start, count, v, stride );
 386       }
 387    }
 388 }
 389
 390
 391 void mgaChooseVertexState( GLcontext *ctx )
 392 {
 393    mgaContextPtr mmesa = MGA_CONTEXT( ctx );
 394    TNLcontext *tnl = TNL_CONTEXT(ctx);
 395    GLuint ind = MGA_XYZW_BIT|MGA_RGBA_BIT;
 396
 397    if (ctx->_TriangleCaps & DD_SEPARATE_SPECULAR)
 398       ind |= MGA_SPEC_BIT;
 399
 400    if (ctx->Fog.Enabled)
 401       ind |= MGA_FOG_BIT;
 402
 403    if (ctx->Texture._EnabledUnits & 0x2) {
 404       /* unit 1 enabled */
 405       if (ctx->Texture._EnabledUnits & 0x1) {
 406          /* unit 0 enabled */
 407          ind |= MGA_TEX1_BIT|MGA_TEX0_BIT;
 408       }
 409       else {
 410          ind |= MGA_TEX0_BIT;
 411       }
 412    }
 413    else if (ctx->Texture._EnabledUnits & 0x1) {
 414       /* unit 0 enabled */
 415       ind |= MGA_TEX0_BIT;
 416    }
 417
 418    mmesa->SetupIndex = ind;
 419
 420    if (ctx->_TriangleCaps & (DD_TRI_LIGHT_TWOSIDE|DD_TRI_UNFILLED)) {
 421       tnl->Driver.Render.Interp = mga_interp_extras;
 422       tnl->Driver.Render.CopyPV = mga_copy_pv_extras;
 423    } else {
 424       tnl->Driver.Render.Interp = setup_tab[ind].interp;
 425       tnl->Driver.Render.CopyPV = setup_tab[ind].copy_pv;
 426    }
 427
 428    if (setup_tab[ind].vertex_format != mmesa->vertex_format) {
 429       FLUSH_BATCH(mmesa);
 430       mmesa->dirty |= MGA_UPLOAD_PIPE;
 431       mmesa->vertex_format = setup_tab[ind].vertex_format;
 432       mmesa->vertex_size = setup_tab[ind].vertex_size;
 433    }
 434 }
 435
 436
 437
 438 void *mga_emit_contiguous_verts( GLcontext *ctx,
 439                                  GLuint start,
 440                                  GLuint count,
 441                                  void *dest)
 442 {
 443    mgaContextPtr mmesa = MGA_CONTEXT(ctx);
 444    GLuint stride = mmesa->vertex_size * 4;
 445    setup_tab[mmesa->SetupIndex].emit( ctx, start, count, dest, stride );
 446    return (void *)((char *)dest + stride * (count - start));
 447 }
 448
 449
 450
 451 void mgaInitVB( GLcontext *ctx )
 452 {
 453    mgaContextPtr mmesa = MGA_CONTEXT(ctx);
 454    GLuint size = TNL_CONTEXT(ctx)->vb.Size;
 455
 456    mmesa->verts = (GLubyte *)ALIGN_MALLOC(size * sizeof(mgaVertex), 32);
 457
 458    {
 459       static int firsttime = 1;
 460       if (firsttime) {
 461          init_setup_tab();
 462          firsttime = 0;
 463       }
 464    }
 465
 466    mmesa->dirty |= MGA_UPLOAD_PIPE;
 467    mmesa->vertex_format = setup_tab[0].vertex_format;
 468    mmesa->vertex_size = setup_tab[0].vertex_size;
 469 }
 470
 471
 472 void mgaFreeVB( GLcontext *ctx )
 473 {
 474    mgaContextPtr mmesa = MGA_CONTEXT(ctx);
 475    if (mmesa->verts) {
 476       ALIGN_FREE(mmesa->verts);
 477       mmesa->verts = 0;
 478    }
 479 }
 480