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 "mgacontext.h"
  30 #include "mgavb.h"
  31 #include "mgatris.h"
  32 #include "mgaioctl.h"
  33 #include "mga_xmesa.h"
  34
  35 #include "glheader.h"
  36 #include "mtypes.h"
  37 #include "imports.h"
  38 #include "macros.h"
  39 #include "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    interp_func          interp;
  58    copy_pv_func         copy_pv;
  59    GLboolean           (*check_tex_sizes)( GLcontext *ctx );
  60    GLuint               vertex_size;
  61    GLuint               vertex_stride_shift;
  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_STRIDE_SHIFT() mmesa->vertex_stride_shift
  94 #define GET_UBYTE_COLOR_STORE() &mmesa->UbyteColor
  95 #define GET_UBYTE_SPEC_COLOR_STORE() &mmesa->UbyteSecondaryColor
  96
  97 #define HAVE_HW_VIEWPORT    0
  98 #define HAVE_HW_DIVIDE      0
  99 #define HAVE_RGBA_COLOR     0
 100 #define HAVE_TINY_VERTICES  0
 101 #define HAVE_NOTEX_VERTICES 0
 102 #define HAVE_TEX0_VERTICES  1
 103 #define HAVE_TEX1_VERTICES  1
 104 #define HAVE_TEX2_VERTICES  0
 105 #define HAVE_TEX3_VERTICES  0
 106 #define HAVE_PTEX_VERTICES  0
 107
 108 #define UNVIEWPORT_VARS                                 \
 109    const GLfloat dx = - mmesa->drawX - SUBPIXEL_X;      \
 110    const GLfloat dy = (mmesa->driDrawable->h +          \
 111                        mmesa->drawY + SUBPIXEL_Y);      \
 112    const GLfloat sz = 1.0 / mmesa->depth_scale
 113
 114 #define UNVIEWPORT_X(x)    x      + dx;
 115 #define UNVIEWPORT_Y(y)  - y      + dy;
 116 #define UNVIEWPORT_Z(z)    z * sz;
 117
 118 #define PTEX_FALLBACK() FALLBACK(ctx, MGA_FALLBACK_TEXTURE, 1)
 119
 120
 121 #define IMPORT_FLOAT_COLORS mga_import_float_colors
 122 #define IMPORT_FLOAT_SPEC_COLORS mga_import_float_spec_colors
 123
 124 #define INTERP_VERTEX setup_tab[MGA_CONTEXT(ctx)->SetupIndex].interp
 125 #define COPY_PV_VERTEX setup_tab[MGA_CONTEXT(ctx)->SetupIndex].copy_pv
 126
 127
 128 /***********************************************************************
 129  *         Generate  pv-copying and translation functions              *
 130  ***********************************************************************/
 131
 132 #define TAG(x) mga_##x
 133 #include "tnl_dd/t_dd_vb.c"
 134
 135 /***********************************************************************
 136  *             Generate vertex emit and interp functions               *
 137  ***********************************************************************/
 138
 139
 140 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT)
 141 #define TAG(x) x##_wg
 142 #include "tnl_dd/t_dd_vbtmp.h"
 143
 144 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_SPEC_BIT)
 145 #define TAG(x) x##_wgs
 146 #include "tnl_dd/t_dd_vbtmp.h"
 147
 148 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_TEX0_BIT)
 149 #define TAG(x) x##_wgt0
 150 #include "tnl_dd/t_dd_vbtmp.h"
 151
 152 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
 153 #define TAG(x) x##_wgt0t1
 154 #include "tnl_dd/t_dd_vbtmp.h"
 155
 156 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_TEX0_BIT|MGA_PTEX_BIT)
 157 #define TAG(x) x##_wgpt0
 158 #include "tnl_dd/t_dd_vbtmp.h"
 159
 160 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT)
 161 #define TAG(x) x##_wgst0
 162 #include "tnl_dd/t_dd_vbtmp.h"
 163
 164 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
 165 #define TAG(x) x##_wgst0t1
 166 #include "tnl_dd/t_dd_vbtmp.h"
 167
 168 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT|MGA_PTEX_BIT)
 169 #define TAG(x) x##_wgspt0
 170 #include "tnl_dd/t_dd_vbtmp.h"
 171
 172 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_FOG_BIT)
 173 #define TAG(x) x##_wgf
 174 #include "tnl_dd/t_dd_vbtmp.h"
 175
 176 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_FOG_BIT|MGA_SPEC_BIT)
 177 #define TAG(x) x##_wgfs
 178 #include "tnl_dd/t_dd_vbtmp.h"
 179
 180 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_FOG_BIT|MGA_TEX0_BIT)
 181 #define TAG(x) x##_wgft0
 182 #include "tnl_dd/t_dd_vbtmp.h"
 183
 184 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_FOG_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
 185 #define TAG(x) x##_wgft0t1
 186 #include "tnl_dd/t_dd_vbtmp.h"
 187
 188 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_FOG_BIT|MGA_TEX0_BIT|MGA_PTEX_BIT)
 189 #define TAG(x) x##_wgfpt0
 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)
 193 #define TAG(x) x##_wgfst0
 194 #include "tnl_dd/t_dd_vbtmp.h"
 195
 196 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_FOG_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
 197 #define TAG(x) x##_wgfst0t1
 198 #include "tnl_dd/t_dd_vbtmp.h"
 199
 200 #define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_FOG_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT|MGA_PTEX_BIT)
 201 #define TAG(x) x##_wgfspt0
 202 #include "tnl_dd/t_dd_vbtmp.h"
 203
 204 #define IND (MGA_TEX0_BIT)
 205 #define TAG(x) x##_t0
 206 #include "tnl_dd/t_dd_vbtmp.h"
 207
 208 #define IND (MGA_TEX0_BIT|MGA_TEX1_BIT)
 209 #define TAG(x) x##_t0t1
 210 #include "tnl_dd/t_dd_vbtmp.h"
 211
 212 #define IND (MGA_FOG_BIT)
 213 #define TAG(x) x##_f
 214 #include "tnl_dd/t_dd_vbtmp.h"
 215
 216 #define IND (MGA_FOG_BIT|MGA_TEX0_BIT)
 217 #define TAG(x) x##_ft0
 218 #include "tnl_dd/t_dd_vbtmp.h"
 219
 220 #define IND (MGA_FOG_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
 221 #define TAG(x) x##_ft0t1
 222 #include "tnl_dd/t_dd_vbtmp.h"
 223
 224 #define IND (MGA_RGBA_BIT)
 225 #define TAG(x) x##_g
 226 #include "tnl_dd/t_dd_vbtmp.h"
 227
 228 #define IND (MGA_RGBA_BIT|MGA_SPEC_BIT)
 229 #define TAG(x) x##_gs
 230 #include "tnl_dd/t_dd_vbtmp.h"
 231
 232 #define IND (MGA_RGBA_BIT|MGA_TEX0_BIT)
 233 #define TAG(x) x##_gt0
 234 #include "tnl_dd/t_dd_vbtmp.h"
 235
 236 #define IND (MGA_RGBA_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
 237 #define TAG(x) x##_gt0t1
 238 #include "tnl_dd/t_dd_vbtmp.h"
 239
 240 #define IND (MGA_RGBA_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT)
 241 #define TAG(x) x##_gst0
 242 #include "tnl_dd/t_dd_vbtmp.h"
 243
 244 #define IND (MGA_RGBA_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
 245 #define TAG(x) x##_gst0t1
 246 #include "tnl_dd/t_dd_vbtmp.h"
 247
 248 #define IND (MGA_RGBA_BIT|MGA_FOG_BIT)
 249 #define TAG(x) x##_gf
 250 #include "tnl_dd/t_dd_vbtmp.h"
 251
 252 #define IND (MGA_RGBA_BIT|MGA_FOG_BIT|MGA_SPEC_BIT)
 253 #define TAG(x) x##_gfs
 254 #include "tnl_dd/t_dd_vbtmp.h"
 255
 256 #define IND (MGA_RGBA_BIT|MGA_FOG_BIT|MGA_TEX0_BIT)
 257 #define TAG(x) x##_gft0
 258 #include "tnl_dd/t_dd_vbtmp.h"
 259
 260 #define IND (MGA_RGBA_BIT|MGA_FOG_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
 261 #define TAG(x) x##_gft0t1
 262 #include "tnl_dd/t_dd_vbtmp.h"
 263
 264 #define IND (MGA_RGBA_BIT|MGA_FOG_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT)
 265 #define TAG(x) x##_gfst0
 266 #include "tnl_dd/t_dd_vbtmp.h"
 267
 268 #define IND (MGA_RGBA_BIT|MGA_FOG_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
 269 #define TAG(x) x##_gfst0t1
 270 #include "tnl_dd/t_dd_vbtmp.h"
 271
 272
 273 static void init_setup_tab( void )
 274 {
 275    init_wg();
 276    init_wgs();
 277    init_wgt0();
 278    init_wgt0t1();
 279    init_wgpt0();
 280    init_wgst0();
 281    init_wgst0t1();
 282    init_wgspt0();
 283    init_wgf();
 284    init_wgfs();
 285    init_wgft0();
 286    init_wgft0t1();
 287    init_wgfpt0();
 288    init_wgfst0();
 289    init_wgfst0t1();
 290    init_wgfspt0();
 291    init_t0();
 292    init_t0t1();
 293    init_f();
 294    init_ft0();
 295    init_ft0t1();
 296    init_g();
 297    init_gs();
 298    init_gt0();
 299    init_gt0t1();
 300    init_gst0();
 301    init_gst0t1();
 302    init_gf();
 303    init_gfs();
 304    init_gft0();
 305    init_gft0t1();
 306    init_gfst0();
 307    init_gfst0t1();
 308 }
 309
 310
 311
 312
 313 void mgaPrintSetupFlags(char *msg, GLuint flags )
 314 {
 315    fprintf(stderr, "%s: %d %s%s%s%s%s%s\n",
 316            msg,
 317            (int)flags,
 318            (flags & MGA_XYZW_BIT)      ? " xyzw," : "",
 319            (flags & MGA_RGBA_BIT)     ? " rgba," : "",
 320            (flags & MGA_SPEC_BIT)     ? " spec," : "",
 321            (flags & MGA_FOG_BIT)      ? " fog," : "",
 322            (flags & MGA_TEX0_BIT)     ? " tex-0," : "",
 323            (flags & MGA_TEX1_BIT)     ? " tex-1," : "");
 324 }
 325
 326
 327 void mgaCheckTexSizes( GLcontext *ctx )
 328 {
 329    mgaContextPtr mmesa = MGA_CONTEXT( ctx );
 330    TNLcontext *tnl = TNL_CONTEXT(ctx);
 331
 332    /*fprintf(stderr, "%s\n", __FUNCTION__);*/
 333
 334    if (!setup_tab[mmesa->SetupIndex].check_tex_sizes(ctx)) {
 335       mmesa->SetupIndex |= MGA_PTEX_BIT;
 336       mmesa->SetupNewInputs = ~0;
 337
 338       if (!mmesa->Fallback &&
 339           !(ctx->_TriangleCaps & (DD_TRI_LIGHT_TWOSIDE|DD_TRI_UNFILLED))) {
 340          tnl->Driver.Render.Interp = setup_tab[mmesa->SetupIndex].interp;
 341          tnl->Driver.Render.CopyPV = setup_tab[mmesa->SetupIndex].copy_pv;
 342       }
 343       if (mmesa->Fallback) {
 344          tnl->Driver.Render.Start(ctx);
 345       }
 346    }
 347 }
 348
 349
 350 void mgaBuildVertices( GLcontext *ctx,
 351                        GLuint start,
 352                        GLuint count,
 353                        GLuint newinputs )
 354 {
 355    mgaContextPtr mmesa = MGA_CONTEXT( ctx );
 356    GLubyte *v = ((GLubyte *)mmesa->verts + (start<<mmesa->vertex_stride_shift));
 357    GLuint stride = 1<<mmesa->vertex_stride_shift;
 358
 359    newinputs |= mmesa->SetupNewInputs;
 360    mmesa->SetupNewInputs = 0;
 361
 362    if (!newinputs)
 363       return;
 364
 365    if (newinputs & VERT_BIT_POS) {
 366       setup_tab[mmesa->SetupIndex].emit( ctx, start, count, v, stride );
 367    } else {
 368       GLuint ind = 0;
 369
 370       if (newinputs & VERT_BIT_COLOR0)
 371          ind |= MGA_RGBA_BIT;
 372
 373       if (newinputs & VERT_BIT_COLOR1)
 374          ind |= MGA_SPEC_BIT;
 375
 376       if (newinputs & VERT_BIT_TEX0)
 377          ind |= MGA_TEX0_BIT;
 378
 379       if (newinputs & VERT_BIT_TEX1)
 380          ind |= MGA_TEX0_BIT|MGA_TEX1_BIT;
 381
 382       if (newinputs & VERT_BIT_FOG)
 383          ind |= MGA_FOG_BIT;
 384
 385       if (mmesa->SetupIndex & MGA_PTEX_BIT)
 386          ind = ~0;
 387
 388       ind &= mmesa->SetupIndex;
 389
 390       if (ind) {
 391          setup_tab[ind].emit( ctx, start, count, v, stride );
 392       }
 393    }
 394 }
 395
 396
 397 void mgaChooseVertexState( GLcontext *ctx )
 398 {
 399    mgaContextPtr mmesa = MGA_CONTEXT( ctx );
 400    TNLcontext *tnl = TNL_CONTEXT(ctx);
 401    GLuint ind = MGA_XYZW_BIT|MGA_RGBA_BIT;
 402
 403    if (ctx->_TriangleCaps & DD_SEPARATE_SPECULAR)
 404       ind |= MGA_SPEC_BIT;
 405
 406    if (ctx->Fog.Enabled)
 407       ind |= MGA_FOG_BIT;
 408
 409    if (ctx->Texture._EnabledUnits & 0x2) {
 410       /* unit 1 enabled */
 411       if (ctx->Texture._EnabledUnits & 0x1) {
 412          /* unit 0 enabled */
 413          ind |= MGA_TEX1_BIT|MGA_TEX0_BIT;
 414       }
 415       else {
 416          ind |= MGA_TEX0_BIT;
 417       }
 418    }
 419    else if (ctx->Texture._EnabledUnits & 0x1) {
 420       /* unit 0 enabled */
 421       ind |= MGA_TEX0_BIT;
 422    }
 423
 424    mmesa->SetupIndex = ind;
 425
 426    if (ctx->_TriangleCaps & (DD_TRI_LIGHT_TWOSIDE|DD_TRI_UNFILLED)) {
 427       tnl->Driver.Render.Interp = mga_interp_extras;
 428       tnl->Driver.Render.CopyPV = mga_copy_pv_extras;
 429    } else {
 430       tnl->Driver.Render.Interp = setup_tab[ind].interp;
 431       tnl->Driver.Render.CopyPV = setup_tab[ind].copy_pv;
 432    }
 433
 434    if (setup_tab[ind].vertex_format != mmesa->vertex_format) {
 435       FLUSH_BATCH(mmesa);
 436       mmesa->dirty |= MGA_UPLOAD_PIPE;
 437       mmesa->vertex_format = setup_tab[ind].vertex_format;
 438       mmesa->vertex_size = setup_tab[ind].vertex_size;
 439       mmesa->vertex_stride_shift = setup_tab[ind].vertex_stride_shift;
 440    }
 441 }
 442
 443
 444
 445 void mga_emit_contiguous_verts( GLcontext *ctx,
 446                                  GLuint start,
 447                                  GLuint count )
 448 {
 449    mgaContextPtr mmesa = MGA_CONTEXT(ctx);
 450    GLuint vertex_size = mmesa->vertex_size * 4;
 451    GLuint *dest = mgaAllocDmaLow( mmesa, (count-start) * vertex_size);
 452    setup_tab[mmesa->SetupIndex].emit( ctx, start, count, dest, vertex_size );
 453 }
 454
 455
 456
 457 void mgaInitVB( GLcontext *ctx )
 458 {
 459    mgaContextPtr mmesa = MGA_CONTEXT(ctx);
 460    GLuint size = TNL_CONTEXT(ctx)->vb.Size;
 461
 462    mmesa->verts = (GLubyte *)ALIGN_MALLOC(size * sizeof(mgaVertex), 32);
 463
 464    {
 465       static int firsttime = 1;
 466       if (firsttime) {
 467          init_setup_tab();
 468          firsttime = 0;
 469       }
 470    }
 471
 472    mmesa->dirty |= MGA_UPLOAD_PIPE;
 473    mmesa->vertex_format = setup_tab[0].vertex_format;
 474    mmesa->vertex_size = setup_tab[0].vertex_size;
 475    mmesa->vertex_stride_shift = setup_tab[0].vertex_stride_shift;
 476 }
 477
 478
 479 void mgaFreeVB( GLcontext *ctx )
 480 {
 481    mgaContextPtr mmesa = MGA_CONTEXT(ctx);
 482    if (mmesa->verts) {
 483       ALIGN_FREE(mmesa->verts);
 484       mmesa->verts = 0;
 485    }
 486
 487    if (mmesa->UbyteSecondaryColor.Ptr) {
 488       ALIGN_FREE(mmesa->UbyteSecondaryColor.Ptr);
 489       mmesa->UbyteSecondaryColor.Ptr = 0;
 490    }
 491
 492    if (mmesa->UbyteColor.Ptr) {
 493       ALIGN_FREE(mmesa->UbyteColor.Ptr);
 494       mmesa->UbyteColor.Ptr = 0;
 495    }
 496 }
 497