src/mesa/drivers/dri/r300/r300_state.c

   1 /*
   2 Copyright (C) The Weather Channel, Inc.  2002.
   3 Copyright (C) 2004 Nicolai Haehnle.
   4 All Rights Reserved.
   5
   6 The Weather Channel (TM) funded Tungsten Graphics to develop the
   7 initial release of the Radeon 8500 driver under the XFree86 license.
   8 This notice must be preserved.
   9
  10 Permission is hereby granted, free of charge, to any person obtaining
  11 a copy of this software and associated documentation files (the
  12 "Software"), to deal in the Software without restriction, including
  13 without limitation the rights to use, copy, modify, merge, publish,
  14 distribute, sublicense, and/or sell copies of the Software, and to
  15 permit persons to whom the Software is furnished to do so, subject to
  16 the following conditions:
  17
  18 The above copyright notice and this permission notice (including the
  19 next paragraph) shall be included in all copies or substantial
  20 portions of the Software.
  21
  22 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  23 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  24 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  25 IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
  26 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  27 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  28 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  29
  30 **************************************************************************/
  31
  32 /*
  33  * Authors:
  34  *   Nicolai Haehnle <prefect_@gmx.net>
  35  */
  36
  37 #include "glheader.h"
  38 #include "state.h"
  39 #include "imports.h"
  40 #include "enums.h"
  41 #include "macros.h"
  42 #include "context.h"
  43 #include "dd.h"
  44 #include "simple_list.h"
  45
  46 #include "api_arrayelt.h"
  47 #include "swrast/swrast.h"
  48 #include "swrast_setup/swrast_setup.h"
  49 #include "array_cache/acache.h"
  50 #include "tnl/tnl.h"
  51
  52 #include "radeon_ioctl.h"
  53 #include "radeon_state.h"
  54 #include "r300_context.h"
  55 #include "r300_ioctl.h"
  56 #include "r300_state.h"
  57 #include "r300_reg.h"
  58 #include "r300_program.h"
  59 #include "r300_emit.h"
  60 #include "r300_fixed_pipelines.h"
  61
  62 static void r300AlphaFunc(GLcontext * ctx, GLenum func, GLfloat ref)
  63 {
  64         r300ContextPtr rmesa = R300_CONTEXT(ctx);
  65         int pp_misc = rmesa->hw.at.cmd[R300_AT_ALPHA_TEST];
  66         GLubyte refByte;
  67
  68         CLAMPED_FLOAT_TO_UBYTE(refByte, ref);
  69
  70         R300_STATECHANGE(rmesa, at);
  71
  72         pp_misc &= ~(R300_ALPHA_TEST_OP_MASK | R300_REF_ALPHA_MASK);
  73         pp_misc |= (refByte & R300_REF_ALPHA_MASK);
  74
  75         switch (func) {
  76         case GL_NEVER:
  77                 pp_misc |= R300_ALPHA_TEST_FAIL;
  78                 break;
  79         case GL_LESS:
  80                 pp_misc |= R300_ALPHA_TEST_LESS;
  81                 break;
  82         case GL_EQUAL:
  83                 pp_misc |= R300_ALPHA_TEST_EQUAL;
  84                 break;
  85         case GL_LEQUAL:
  86                 pp_misc |= R300_ALPHA_TEST_LEQUAL;
  87                 break;
  88         case GL_GREATER:
  89                 pp_misc |= R300_ALPHA_TEST_GREATER;
  90                 break;
  91         case GL_NOTEQUAL:
  92                 pp_misc |= R300_ALPHA_TEST_NEQUAL;
  93                 break;
  94         case GL_GEQUAL:
  95                 pp_misc |= R300_ALPHA_TEST_GEQUAL;
  96                 break;
  97         case GL_ALWAYS:
  98                 pp_misc |= R300_ALPHA_TEST_PASS;
  99                 break;
 100         }
 101
 102         rmesa->hw.at.cmd[R300_AT_ALPHA_TEST] = pp_misc;
 103 }
 104
 105 static void r300BlendColor(GLcontext * ctx, const GLfloat cf[4])
 106 {
 107         GLubyte color[4];
 108         r300ContextPtr rmesa = R300_CONTEXT(ctx);
 109         fprintf(stderr, "%s:%s is not implemented yet. Fixme !\n", __FILE__, __FUNCTION__);
 110         #if 0
 111         R200_STATECHANGE(rmesa, ctx);
 112         CLAMPED_FLOAT_TO_UBYTE(color[0], cf[0]);
 113         CLAMPED_FLOAT_TO_UBYTE(color[1], cf[1]);
 114         CLAMPED_FLOAT_TO_UBYTE(color[2], cf[2]);
 115         CLAMPED_FLOAT_TO_UBYTE(color[3], cf[3]);
 116         if (rmesa->radeon.radeonScreen->drmSupportsBlendColor)
 117                 rmesa->hw.ctx.cmd[CTX_RB3D_BLENDCOLOR] =
 118                     radeonPackColor(4, color[0], color[1], color[2], color[3]);
 119         #endif
 120 }
 121
 122 /**
 123  * Calculate the hardware blend factor setting.  This same function is used
 124  * for source and destination of both alpha and RGB.
 125  *
 126  * \returns
 127  * The hardware register value for the specified blend factor.  This value
 128  * will need to be shifted into the correct position for either source or
 129  * destination factor.
 130  *
 131  * \todo
 132  * Since the two cases where source and destination are handled differently
 133  * are essentially error cases, they should never happen.  Determine if these
 134  * cases can be removed.
 135  */
 136 static int blend_factor(GLenum factor, GLboolean is_src)
 137 {
 138         int func;
 139
 140         switch (factor) {
 141         case GL_ZERO:
 142                 func = R200_BLEND_GL_ZERO;
 143                 break;
 144         case GL_ONE:
 145                 func = R200_BLEND_GL_ONE;
 146                 break;
 147         case GL_DST_COLOR:
 148                 func = R200_BLEND_GL_DST_COLOR;
 149                 break;
 150         case GL_ONE_MINUS_DST_COLOR:
 151                 func = R200_BLEND_GL_ONE_MINUS_DST_COLOR;
 152                 break;
 153         case GL_SRC_COLOR:
 154                 func = R200_BLEND_GL_SRC_COLOR;
 155                 break;
 156         case GL_ONE_MINUS_SRC_COLOR:
 157                 func = R200_BLEND_GL_ONE_MINUS_SRC_COLOR;
 158                 break;
 159         case GL_SRC_ALPHA:
 160                 func = R200_BLEND_GL_SRC_ALPHA;
 161                 break;
 162         case GL_ONE_MINUS_SRC_ALPHA:
 163                 func = R200_BLEND_GL_ONE_MINUS_SRC_ALPHA;
 164                 break;
 165         case GL_DST_ALPHA:
 166                 func = R200_BLEND_GL_DST_ALPHA;
 167                 break;
 168         case GL_ONE_MINUS_DST_ALPHA:
 169                 func = R200_BLEND_GL_ONE_MINUS_DST_ALPHA;
 170                 break;
 171         case GL_SRC_ALPHA_SATURATE:
 172                 func =
 173                     (is_src) ? R200_BLEND_GL_SRC_ALPHA_SATURATE :
 174                     R200_BLEND_GL_ZERO;
 175                 break;
 176         case GL_CONSTANT_COLOR:
 177                 func = R200_BLEND_GL_CONST_COLOR;
 178                 break;
 179         case GL_ONE_MINUS_CONSTANT_COLOR:
 180                 func = R200_BLEND_GL_ONE_MINUS_CONST_COLOR;
 181                 break;
 182         case GL_CONSTANT_ALPHA:
 183                 func = R200_BLEND_GL_CONST_ALPHA;
 184                 break;
 185         case GL_ONE_MINUS_CONSTANT_ALPHA:
 186                 func = R200_BLEND_GL_ONE_MINUS_CONST_ALPHA;
 187                 break;
 188         default:
 189                 func = (is_src) ? R200_BLEND_GL_ONE : R200_BLEND_GL_ZERO;
 190         }
 191         return func;
 192 }
 193
 194 /**
 195  * Sets both the blend equation and the blend function.
 196  * This is done in a single
 197  * function because some blend equations (i.e., \c GL_MIN and \c GL_MAX)
 198  * change the interpretation of the blend function.
 199  * Also, make sure that blend function and blend equation are set to their default
 200  * value if color blending is not enabled, since at least blend equations GL_MIN
 201  * and GL_FUNC_REVERSE_SUBTRACT will cause wrong results otherwise for
 202  * unknown reasons.
 203  */
 204 static void r300_set_blend_state(GLcontext * ctx)
 205 {
 206         r300ContextPtr rmesa = R300_CONTEXT(ctx);
 207         #if 0
 208         GLuint cntl = rmesa->hw.ctx.cmd[CTX_RB3D_CNTL] &
 209             ~(R300_ROP_ENABLE | R300_ALPHA_BLEND_ENABLE |
 210               R300_SEPARATE_ALPHA_ENABLE);
 211         #endif
 212
 213         int func = (R200_BLEND_GL_ONE << R200_SRC_BLEND_SHIFT) |
 214             (R200_BLEND_GL_ZERO << R200_DST_BLEND_SHIFT);
 215         int eqn = R200_COMB_FCN_ADD_CLAMP;
 216         int funcA = (R200_BLEND_GL_ONE << R200_SRC_BLEND_SHIFT) |
 217             (R200_BLEND_GL_ZERO << R200_DST_BLEND_SHIFT);
 218         int eqnA = R200_COMB_FCN_ADD_CLAMP;
 219
 220         R300_STATECHANGE(rmesa, bld);
 221
 222         if (rmesa->radeon.radeonScreen->drmSupportsBlendColor) {
 223                 if (ctx->Color._LogicOpEnabled) {
 224                         #if 0
 225                         rmesa->hw.ctx.cmd[CTX_RB3D_CNTL] =
 226                             cntl | R300_ROP_ENABLE;
 227                         #endif
 228                         rmesa->hw.bld.cmd[R300_BLD_ABLEND] = eqn | func;
 229                         rmesa->hw.bld.cmd[R300_BLD_CBLEND] = eqn | func;
 230                         return;
 231                 } else if (ctx->Color.BlendEnabled) {
 232                         #if 0
 233                         rmesa->hw.ctx.cmd[CTX_RB3D_CNTL] =
 234                             cntl | R300_ALPHA_BLEND_ENABLE |
 235                             R300_SEPARATE_ALPHA_ENABLE;
 236                         #endif
 237                 } else {
 238                         #if 0
 239                         rmesa->hw.ctx.cmd[CTX_RB3D_CNTL] = cntl;
 240                         #endif
 241                         rmesa->hw.bld.cmd[R300_BLD_ABLEND] = eqn | func;
 242                         rmesa->hw.bld.cmd[R300_BLD_CBLEND] = eqn | func;
 243                         return;
 244                 }
 245         } else {
 246                 if (ctx->Color._LogicOpEnabled) {
 247                         #if 0
 248                         rmesa->hw.ctx.cmd[CTX_RB3D_CNTL] =
 249                             cntl | R300_ROP_ENABLE;
 250                         rmesa->hw.ctx.cmd[CTX_RB3D_BLENDCNTL] = eqn | func;
 251                         #endif
 252                         return;
 253                 } else if (ctx->Color.BlendEnabled) {
 254                         #if 0
 255                         rmesa->hw.ctx.cmd[CTX_RB3D_CNTL] =
 256                             cntl | R300_ALPHA_BLEND_ENABLE;
 257                         #endif
 258                 } else {
 259                         #if 0
 260                         rmesa->hw.ctx.cmd[CTX_RB3D_CNTL] = cntl;
 261                         rmesa->hw.ctx.cmd[CTX_RB3D_BLENDCNTL] = eqn | func;
 262                         #endif
 263                         return;
 264                 }
 265         }
 266
 267         func =
 268             (blend_factor(ctx->Color.BlendSrcRGB, GL_TRUE) <<
 269              R200_SRC_BLEND_SHIFT) | (blend_factor(ctx->Color.BlendDstRGB,
 270                                                    GL_FALSE) <<
 271                                       R200_DST_BLEND_SHIFT);
 272
 273         switch (ctx->Color.BlendEquationRGB) {
 274         case GL_FUNC_ADD:
 275                 eqn = R300_COMB_FCN_ADD_CLAMP;
 276                 break;
 277
 278         case GL_FUNC_SUBTRACT:
 279                 eqn = R300_COMB_FCN_SUB_CLAMP;
 280                 break;
 281
 282         case GL_FUNC_REVERSE_SUBTRACT:
 283                 eqn = R200_COMB_FCN_RSUB_CLAMP;
 284                 break;
 285
 286         case GL_MIN:
 287                 eqn = R200_COMB_FCN_MIN;
 288                 func = (R200_BLEND_GL_ONE << R200_SRC_BLEND_SHIFT) |
 289                     (R200_BLEND_GL_ONE << R200_DST_BLEND_SHIFT);
 290                 break;
 291
 292         case GL_MAX:
 293                 eqn = R200_COMB_FCN_MAX;
 294                 func = (R200_BLEND_GL_ONE << R200_SRC_BLEND_SHIFT) |
 295                     (R200_BLEND_GL_ONE << R200_DST_BLEND_SHIFT);
 296                 break;
 297
 298         default:
 299                 fprintf(stderr,
 300                         "[%s:%u] Invalid RGB blend equation (0x%04x).\n",
 301                         __func__, __LINE__, ctx->Color.BlendEquationRGB);
 302                 return;
 303         }
 304
 305         if (!rmesa->radeon.radeonScreen->drmSupportsBlendColor) {
 306                 #if 0
 307                 rmesa->hw.ctx.cmd[CTX_RB3D_BLENDCNTL] = eqn | func;
 308                 #endif
 309                 return;
 310         }
 311
 312         funcA =
 313             (blend_factor(ctx->Color.BlendSrcA, GL_TRUE) <<
 314              R200_SRC_BLEND_SHIFT) | (blend_factor(ctx->Color.BlendDstA,
 315                                                    GL_FALSE) <<
 316                                       R200_DST_BLEND_SHIFT);
 317
 318         switch (ctx->Color.BlendEquationA) {
 319         case GL_FUNC_ADD:
 320                 eqnA = R300_COMB_FCN_ADD_CLAMP;
 321                 break;
 322
 323         case GL_FUNC_SUBTRACT:
 324                 eqnA = R300_COMB_FCN_SUB_CLAMP;
 325                 break;
 326
 327         case GL_FUNC_REVERSE_SUBTRACT:
 328                 eqnA = R200_COMB_FCN_RSUB_CLAMP;
 329                 break;
 330
 331         case GL_MIN:
 332                 eqnA = R200_COMB_FCN_MIN;
 333                 funcA = (R200_BLEND_GL_ONE << R200_SRC_BLEND_SHIFT) |
 334                     (R200_BLEND_GL_ONE << R200_DST_BLEND_SHIFT);
 335                 break;
 336
 337         case GL_MAX:
 338                 eqnA = R200_COMB_FCN_MAX;
 339                 funcA = (R200_BLEND_GL_ONE << R200_SRC_BLEND_SHIFT) |
 340                     (R200_BLEND_GL_ONE << R200_DST_BLEND_SHIFT);
 341                 break;
 342
 343         default:
 344                 fprintf(stderr, "[%s:%u] Invalid A blend equation (0x%04x).\n",
 345                         __func__, __LINE__, ctx->Color.BlendEquationA);
 346                 return;
 347         }
 348
 349         rmesa->hw.bld.cmd[R300_BLD_ABLEND] = eqnA | funcA;
 350         rmesa->hw.bld.cmd[R300_BLD_CBLEND] = eqn | func ;
 351         if(rmesa->hw.bld.cmd[R300_BLD_ABLEND] == rmesa->hw.bld.cmd[R300_BLD_CBLEND]){
 352                 rmesa->hw.bld.cmd[R300_BLD_CBLEND] |= R300_BLEND_UNKNOWN | R300_BLEND_ENABLE | R300_BLEND_NO_SEPARATE;
 353                 } else {
 354                 rmesa->hw.bld.cmd[R300_BLD_CBLEND] |= R300_BLEND_UNKNOWN | R300_BLEND_ENABLE;
 355                 }
 356
 357 }
 358
 359 static void r300BlendEquationSeparate(GLcontext * ctx,
 360                                       GLenum modeRGB, GLenum modeA)
 361 {
 362         r300_set_blend_state(ctx);
 363 }
 364
 365 static void r300BlendFuncSeparate(GLcontext * ctx,
 366                                   GLenum sfactorRGB, GLenum dfactorRGB,
 367                                   GLenum sfactorA, GLenum dfactorA)
 368 {
 369         r300_set_blend_state(ctx);
 370 }
 371
 372 /**
 373  * Update our tracked culling state based on Mesa's state.
 374  */
 375 static void r300UpdateCulling(GLcontext* ctx)
 376 {
 377         r300ContextPtr r300 = R300_CONTEXT(ctx);
 378         uint32_t val = 0;
 379
 380         R300_STATECHANGE(r300, cul);
 381         if (ctx->Polygon.CullFlag) {
 382                 if (ctx->Polygon.CullFaceMode == GL_FRONT_AND_BACK)
 383                         val = R300_CULL_FRONT|R300_CULL_BACK;
 384                 else if (ctx->Polygon.CullFaceMode == GL_FRONT)
 385                         val = R300_CULL_FRONT;
 386                 else
 387                         val = R300_CULL_BACK;
 388
 389                 if (ctx->Polygon.FrontFace == GL_CW)
 390                         val |= R300_FRONT_FACE_CW;
 391                 else
 392                         val |= R300_FRONT_FACE_CCW;
 393         }
 394
 395         r300->hw.cul.cmd[R300_CUL_CULL] = val;
 396 }
 397
 398
 399 /**
 400  * Handle glEnable()/glDisable().
 401  *
 402  * \note Mesa already filters redundant calls to glEnable/glDisable.
 403  */
 404 static void r300Enable(GLcontext* ctx, GLenum cap, GLboolean state)
 405 {
 406         r300ContextPtr r300 = R300_CONTEXT(ctx);
 407         uint32_t newval;
 408
 409         if (RADEON_DEBUG & DEBUG_STATE)
 410                 fprintf(stderr, "%s( %s = %s )\n", __FUNCTION__,
 411                         _mesa_lookup_enum_by_nr(cap),
 412                         state ? "GL_TRUE" : "GL_FALSE");
 413
 414         switch (cap) {
 415         case GL_DEPTH_TEST:
 416                 R300_STATECHANGE(r300, zc);
 417
 418                 if (state) {
 419                         if (ctx->Depth.Mask)
 420                                 newval = R300_RB3D_Z_TEST_AND_WRITE;
 421                         else
 422                                 newval = R300_RB3D_Z_TEST;
 423                 } else
 424                         newval = 0;
 425
 426                 r300->hw.zc.cmd[R300_ZC_CNTL_0] = newval;
 427                 break;
 428
 429         case GL_CULL_FACE:
 430                 r300UpdateCulling(ctx);
 431                 break;
 432
 433         default:
 434                 radeonEnable(ctx, cap, state);
 435                 return;
 436         }
 437 }
 438
 439
 440 /**
 441  * Change the culling mode.
 442  *
 443  * \note Mesa already filters redundant calls to this function.
 444  */
 445 static void r300CullFace(GLcontext* ctx, GLenum mode)
 446 {
 447         (void)mode;
 448
 449         r300UpdateCulling(ctx);
 450 }
 451
 452
 453 /**
 454  * Change the polygon orientation.
 455  *
 456  * \note Mesa already filters redundant calls to this function.
 457  */
 458 static void r300FrontFace(GLcontext* ctx, GLenum mode)
 459 {
 460         (void)mode;
 461
 462         r300UpdateCulling(ctx);
 463 }
 464
 465
 466 /**
 467  * Change the depth testing function.
 468  *
 469  * \note Mesa already filters redundant calls to this function.
 470  */
 471 static void r300DepthFunc(GLcontext* ctx, GLenum func)
 472 {
 473         r300ContextPtr r300 = R300_CONTEXT(ctx);
 474
 475         R300_STATECHANGE(r300, zc);
 476
 477         switch(func) {
 478         case GL_NEVER:
 479                 r300->hw.zc.cmd[R300_ZC_CNTL_1] = R300_Z_TEST_NEVER;
 480                 break;
 481         case GL_LESS:
 482                 r300->hw.zc.cmd[R300_ZC_CNTL_1] = R300_Z_TEST_LESS;
 483                 break;
 484         case GL_EQUAL:
 485                 r300->hw.zc.cmd[R300_ZC_CNTL_1] = R300_Z_TEST_EQUAL;
 486                 break;
 487         case GL_LEQUAL:
 488                 r300->hw.zc.cmd[R300_ZC_CNTL_1] = R300_Z_TEST_LEQUAL;
 489                 break;
 490         case GL_GREATER:
 491                 r300->hw.zc.cmd[R300_ZC_CNTL_1] = R300_Z_TEST_GREATER;
 492                 break;
 493         case GL_NOTEQUAL:
 494                 r300->hw.zc.cmd[R300_ZC_CNTL_1] = R300_Z_TEST_NEQUAL;
 495                 break;
 496         case GL_GEQUAL:
 497                 r300->hw.zc.cmd[R300_ZC_CNTL_1] = R300_Z_TEST_GEQUAL;
 498                 break;
 499         case GL_ALWAYS:
 500                 r300->hw.zc.cmd[R300_ZC_CNTL_1] = R300_Z_TEST_ALWAYS;
 501                 break;
 502         }
 503 }
 504
 505
 506 /**
 507  * Enable/Disable depth writing.
 508  *
 509  * \note Mesa already filters redundant calls to this function.
 510  */
 511 static void r300DepthMask(GLcontext* ctx, GLboolean mask)
 512 {
 513         r300ContextPtr r300 = R300_CONTEXT(ctx);
 514
 515         if (!ctx->Depth.Test)
 516                 return;
 517
 518         R300_STATECHANGE(r300, zc);
 519         r300->hw.zc.cmd[R300_ZC_CNTL_0] = mask
 520                 ? R300_RB3D_Z_TEST_AND_WRITE : R300_RB3D_Z_TEST;
 521 }
 522
 523
 524 /**
 525  * Handle glColorMask()
 526  */
 527 static void r300ColorMask(GLcontext* ctx,
 528                           GLboolean r, GLboolean g, GLboolean b, GLboolean a)
 529 {
 530         r300ContextPtr r300 = R300_CONTEXT(ctx);
 531         int mask = (b << 0) | (g << 1) | (r << 2) | (a << 3);
 532
 533         if (mask != r300->hw.cmk.cmd[R300_CMK_COLORMASK]) {
 534                 R300_STATECHANGE(r300, cmk);
 535                 r300->hw.cmk.cmd[R300_CMK_COLORMASK] = mask;
 536         }
 537 }
 538
 539 /* =============================================================
 540  * Point state
 541  */
 542 static void r300PointSize(GLcontext * ctx, GLfloat size)
 543 {
 544         r300ContextPtr r300 = R300_CONTEXT(ctx);
 545
 546         /* This might need fixing later */
 547         R300_STATECHANGE(r300, vps);
 548         r300->hw.vps.cmd[R300_VPS_POINTSIZE] = r300PackFloat32(1.0);
 549 }
 550
 551 /* =============================================================
 552  * Window position and viewport transformation
 553  */
 554
 555 /*
 556  * To correctly position primitives:
 557  */
 558 #define SUBPIXEL_X 0.125
 559 #define SUBPIXEL_Y 0.125
 560
 561 void r300UpdateWindow(GLcontext * ctx)
 562 {
 563         r300ContextPtr rmesa = R300_CONTEXT(ctx);
 564         __DRIdrawablePrivate *dPriv = rmesa->radeon.dri.drawable;
 565         GLfloat xoffset = dPriv ? (GLfloat) dPriv->x : 0;
 566         GLfloat yoffset = dPriv ? (GLfloat) dPriv->y + dPriv->h : 0;
 567         const GLfloat *v = ctx->Viewport._WindowMap.m;
 568
 569         GLfloat sx = v[MAT_SX];
 570         GLfloat tx = v[MAT_TX] + xoffset + SUBPIXEL_X;
 571         GLfloat sy = -v[MAT_SY];
 572         GLfloat ty = (-v[MAT_TY]) + yoffset + SUBPIXEL_Y;
 573         GLfloat sz = v[MAT_SZ] * rmesa->state.depth.scale;
 574         GLfloat tz = v[MAT_TZ] * rmesa->state.depth.scale;
 575
 576         R300_FIREVERTICES(rmesa);
 577         R300_STATECHANGE(rmesa, vpt);
 578
 579         rmesa->hw.vpt.cmd[R300_VPT_XSCALE]  = r300PackFloat32(sx);
 580         rmesa->hw.vpt.cmd[R300_VPT_XOFFSET] = r300PackFloat32(tx);
 581         rmesa->hw.vpt.cmd[R300_VPT_YSCALE]  = r300PackFloat32(sy);
 582         rmesa->hw.vpt.cmd[R300_VPT_YOFFSET] = r300PackFloat32(ty);
 583         rmesa->hw.vpt.cmd[R300_VPT_ZSCALE]  = r300PackFloat32(sz);
 584         rmesa->hw.vpt.cmd[R300_VPT_ZOFFSET] = r300PackFloat32(tz);
 585 }
 586
 587 static void r300Viewport(GLcontext * ctx, GLint x, GLint y,
 588                          GLsizei width, GLsizei height)
 589 {
 590         /* Don't pipeline viewport changes, conflict with window offset
 591          * setting below.  Could apply deltas to rescue pipelined viewport
 592          * values, or keep the originals hanging around.
 593          */
 594         R200_FIREVERTICES(R200_CONTEXT(ctx));
 595         r300UpdateWindow(ctx);
 596 }
 597
 598 static void r300DepthRange(GLcontext * ctx, GLclampd nearval, GLclampd farval)
 599 {
 600         r300UpdateWindow(ctx);
 601 }
 602
 603 /* Routing and texture-related */
 604
 605 void r300_setup_routing(GLcontext *ctx, GLboolean immediate)
 606 {
 607         int i, count=0,reg=0;
 608         GLuint dw, mask;
 609         TNLcontext *tnl = TNL_CONTEXT(ctx);
 610         struct vertex_buffer *VB = &tnl->vb;
 611         r300ContextPtr r300 = R300_CONTEXT(ctx);
 612
 613
 614         /* Stage 1 - input to VAP */
 615
 616         /* Assign register number automatically, retaining it in rmesa->state.reg */
 617
 618         /* Note: immediate vertex data includes all coordinates.
 619         To save bandwidth use either VBUF or state-based vertex generation */
 620
 621         #define CONFIGURE_AOS(v, o, r, f) \
 622                 {\
 623                 if(immediate){ \
 624                         r300->state.aos[count].element_size=4; \
 625                         r300->state.aos[count].stride=4; \
 626                         r300->state.aos[count].ncomponents=4; \
 627                         } else { \
 628                         r300->state.aos[count].element_size=v->size; \
 629                         r300->state.aos[count].stride=v->size; \
 630                         r300->state.aos[count].ncomponents=v->size; \
 631                         } \
 632                 r300->state.aos[count].offset=o; \
 633                 r300->state.aos[count].reg=reg; \
 634                 r300->state.aos[count].format=(f); \
 635                 r300->state.vap_reg.r=reg; \
 636                 count++; \
 637                 reg++; \
 638                 }
 639
 640                 /* All offsets are 0 - for use by immediate mode.
 641                 Should change later to handle vertex buffers */
 642         CONFIGURE_AOS(VB->ObjPtr, 0, i_coords, AOS_FORMAT_FLOAT);
 643         CONFIGURE_AOS(VB->ColorPtr[0], 0, i_color[0], AOS_FORMAT_FLOAT_COLOR);
 644         for(i=0;i < ctx->Const.MaxTextureUnits;i++)
 645                 if(ctx->Texture.Unit[i].Enabled)
 646                         CONFIGURE_AOS(VB->TexCoordPtr[i], 0, i_tex[i], AOS_FORMAT_FLOAT);
 647
 648         r300->state.aos_count=count;
 649
 650         if (RADEON_DEBUG & DEBUG_STATE)
 651                 fprintf(stderr, "aos_count=%d\n", count);
 652
 653         if(count>R300_MAX_AOS_ARRAYS){
 654                 fprintf(stderr, "Aieee ! AOS array count exceeded !\n");
 655                 exit(-1);
 656                 }
 657
 658         /* Implement AOS */
 659
 660         /* setup INPUT_ROUTE */
 661         R300_STATECHANGE(r300, vir[0]);
 662         for(i=0;i+1<count;i+=2){
 663                 dw=(r300->state.aos[i].ncomponents-1)
 664                 | ((r300->state.aos[i].reg)<<8)
 665                 | (r300->state.aos[i].format<<14)
 666                 | (((r300->state.aos[i+1].ncomponents-1)
 667                 | ((r300->state.aos[i+1].reg)<<8)
 668                 | (r300->state.aos[i+1].format<<14))<<16);
 669
 670                 if(i+2==count){
 671                         dw|=(1<<(13+16));
 672                         }
 673                 r300->hw.vir[0].cmd[R300_VIR_CNTL_0+(i>>1)]=dw;
 674                 }
 675         if(count & 1){
 676                 dw=(r300->state.aos[count-1].ncomponents-1)
 677                 | (r300->state.aos[count-1].format<<14)
 678                 | ((r300->state.aos[count-1].reg)<<8)
 679                 | (1<<13);
 680                 r300->hw.vir[0].cmd[R300_VIR_CNTL_0+(count>>1)]=dw;
 681                 //fprintf(stderr, "vir0 dw=%08x\n", dw);
 682                 }
 683         /* Set the rest of INPUT_ROUTE_0 to 0 */
 684         //for(i=((count+1)>>1); i<8; i++)r300->hw.vir[0].cmd[R300_VIR_CNTL_0+i]=(0x0);
 685         ((drm_r300_cmd_header_t*)r300->hw.vir[0].cmd)->unchecked_state.count = (count+1)>>1;
 686
 687
 688         /* Mesa assumes that all missing components are from (0, 0, 0, 1) */
 689         #define ALL_COMPONENTS ((R300_INPUT_ROUTE_SELECT_X<<R300_INPUT_ROUTE_X_SHIFT) \
 690                 | (R300_INPUT_ROUTE_SELECT_Y<<R300_INPUT_ROUTE_Y_SHIFT) \
 691                 | (R300_INPUT_ROUTE_SELECT_Z<<R300_INPUT_ROUTE_Z_SHIFT) \
 692                 | (R300_INPUT_ROUTE_SELECT_W<<R300_INPUT_ROUTE_W_SHIFT))
 693
 694         #define ALL_DEFAULT ((R300_INPUT_ROUTE_SELECT_ZERO<<R300_INPUT_ROUTE_X_SHIFT) \
 695                 | (R300_INPUT_ROUTE_SELECT_ZERO<<R300_INPUT_ROUTE_Y_SHIFT) \
 696                 | (R300_INPUT_ROUTE_SELECT_ZERO<<R300_INPUT_ROUTE_Z_SHIFT) \
 697                 | (R300_INPUT_ROUTE_SELECT_ONE<<R300_INPUT_ROUTE_W_SHIFT))
 698
 699         R300_STATECHANGE(r300, vir[1]);
 700
 701         for(i=0;i+1<count;i+=2){
 702                 /* do i first.. */
 703                 mask=(1<<(r300->state.aos[i].ncomponents*3))-1;
 704                 dw=(ALL_COMPONENTS & mask)
 705                 | (ALL_DEFAULT & ~mask)
 706                 | R300_INPUT_ROUTE_ENABLE;
 707
 708                 /* i+1 */
 709                 mask=(1<<(r300->state.aos[i+1].ncomponents*3))-1;
 710                 dw|=(
 711                 (ALL_COMPONENTS & mask)
 712                 | (ALL_DEFAULT & ~mask)
 713                 | R300_INPUT_ROUTE_ENABLE
 714                 )<<16;
 715
 716                 r300->hw.vir[1].cmd[R300_VIR_CNTL_0+(i>>1)]=dw;
 717                 }
 718         if(count & 1){
 719                 mask=(1<<(r300->state.aos[count-1].ncomponents*3))-1;
 720                 dw=(ALL_COMPONENTS & mask)
 721                 | (ALL_DEFAULT & ~mask)
 722                 | R300_INPUT_ROUTE_ENABLE;
 723                 r300->hw.vir[1].cmd[R300_VIR_CNTL_0+(count>>1)]=dw;
 724                 //fprintf(stderr, "vir1 dw=%08x\n", dw);
 725                 }
 726         /* Set the rest of INPUT_ROUTE_1 to 0 */
 727         //for(i=((count+1)>>1); i<8; i++)r300->hw.vir[1].cmd[R300_VIR_CNTL_0+i]=0x0;
 728         ((drm_r300_cmd_header_t*)r300->hw.vir[1].cmd)->unchecked_state.count = (count+1)>>1;
 729
 730         /* Set up input_cntl */
 731
 732         R300_STATECHANGE(r300, vic);
 733         r300->hw.vic.cmd[R300_VIC_CNTL_0]=0x5555;  /* Hard coded value, no idea what it means */
 734
 735         r300->hw.vic.cmd[R300_VIC_CNTL_1]=R300_INPUT_CNTL_POS
 736                                         | R300_INPUT_CNTL_COLOR;
 737
 738         for(i=0;i < ctx->Const.MaxTextureUnits;i++)
 739                 if(ctx->Texture.Unit[i].Enabled)
 740                         r300->hw.vic.cmd[R300_VIC_CNTL_1]|=(R300_INPUT_CNTL_TC0<<i);
 741
 742         /* Stage 3: VAP output */
 743         R300_STATECHANGE(r300, vof);
 744         r300->hw.vof.cmd[R300_VOF_CNTL_0]=R300_VAP_OUTPUT_VTX_FMT_0__POS_PRESENT
 745                                         | R300_VAP_OUTPUT_VTX_FMT_0__COLOR_PRESENT;
 746
 747         r300->hw.vof.cmd[R300_VOF_CNTL_1]=0;
 748         for(i=0;i < ctx->Const.MaxTextureUnits;i++)
 749                 if(ctx->Texture.Unit[i].Enabled)
 750                         r300->hw.vof.cmd[R300_VOF_CNTL_1]|=(4<<(3*i));
 751
 752 }
 753
 754 static r300TexObj default_tex_obj={
 755         filter:R300_TX_MAG_FILTER_LINEAR | R300_TX_MIN_FILTER_LINEAR,
 756         pitch: 0x8000,
 757         size: (0xff << R300_TX_WIDTHMASK_SHIFT)
 758               | (0xff << R300_TX_HEIGHTMASK_SHIFT)
 759               | (0x8 << R300_TX_SIZE_SHIFT),
 760         format: 0x88a0c,
 761         offset: 0x0,
 762         unknown4: 0x0,
 763         unknown5: 0x0
 764         };
 765
 766         /* there is probably a system to these value, but, for now,
 767            we just try by hand */
 768
 769 static int inline translate_src(int src)
 770 {
 771         switch (src) {
 772         case GL_TEXTURE:
 773                 return 1;
 774                 break;
 775         case GL_CONSTANT:
 776                 return 2;
 777                 break;
 778         case GL_PRIMARY_COLOR:
 779                 return 3;
 780                 break;
 781         case GL_PREVIOUS:
 782                 return 4;
 783                 break;
 784         case GL_ZERO:
 785                 return 5;
 786                 break;
 787         case GL_ONE:
 788                 return 6;
 789                 break;
 790         default:
 791                 return 0;
 792         }
 793 }
 794
 795 /* I think 357 and 457 are prime numbers.. wiggle them if you get coincidences */
 796 #define FORMAT_HASH(opRGB, srcRGB, modeRGB, opA, srcA, modeA, format, intFormat)        ( \
 797         (\
 798         ((opRGB)<<30) | ((opA)<<28) | \
 799         ((srcRGB)<< 25) | ((srcA)<<22) | \
 800         ((modeRGB)) \
 801         ) \
 802         ^ ((modeA)*357) \
 803         ^ (((format)) *457) \
 804         ^ ((intFormat) * 7) \
 805         )
 806
 807 static GLuint translate_texture_format(GLcontext *ctx, GLint tex_unit, GLuint format, GLint IntFormat)
 808 {
 809         const struct gl_texture_unit *texUnit= &ctx->Texture.Unit[tex_unit];
 810         int i=0; /* number of alpha args .. */
 811
 812         /* Size field in format specific first */
 813         switch(FORMAT_HASH(
 814                 texUnit->_CurrentCombine->OperandRGB[i] -GL_SRC_COLOR,
 815                 translate_src(texUnit->_CurrentCombine->SourceRGB[i]),
 816                 texUnit->_CurrentCombine->ModeRGB,
 817                 texUnit->_CurrentCombine->OperandA[i] -GL_SRC_ALPHA,
 818                 translate_src(texUnit->_CurrentCombine->SourceA[i]),
 819                 texUnit->_CurrentCombine->ModeA,
 820                 format,
 821                 IntFormat
 822                 )){
 823         case FORMAT_HASH(0, 1, 0x2100, 0, 1, 0x2100, 0x00088047, 0x1908):
 824                 /* tested with:
 825                         kfiresaver.kss
 826                         */
 827                 return 0x7a0c; /* kfiresaver.kss */
 828         case FORMAT_HASH(0, 1, 0x2100, 0, 1, 0x2100, 0x00088047, 0x8058):
 829                 /* tested with:
 830                         Quake3demo
 831                         */
 832                 return 0x8a0c; /* Quake3demo -small font on the bottom */
 833         case FORMAT_HASH(0, 1, 0x2100, 0, 1, 0x2100, 0x00077047, 4):
 834                 /* tested with:
 835                         kfiresaver.kss
 836                         */
 837                 return 0x4ba0c;
 838         case FORMAT_HASH(0, 1, 0x2100, 0, 1, 0x2100, 0x00055047, 4):
 839                 /* tested with:
 840                         kfiresaver.kss
 841                         kfountain.kss
 842                         */
 843                 return 0x51a0c;
 844         case FORMAT_HASH(0, 1, 0x2100, 0, 4, 0x1e01, 0x00088047, 3):
 845                 /* tested with
 846                         lesson 06
 847                         lesson 07
 848                         */
 849                 return 0x53a0c;
 850         //case FORMAT_HASH(0, 1, 0x2100, 0, 4, 0x1e01, 0x00055047, 0):
 851                 /* Can't remember what I tested this with..
 852                    try putting return 0 of you see broken textures which
 853                    are not being complained about */
 854                 return 0x53a0c;
 855         case FORMAT_HASH(0, 1, 0x2100, 0, 4, 0x1e01, 0x00099047, 0x8051):
 856         //case FORMAT_HASH(0, 1, 0x2100, 0, 4, 0x1e01, 0x00089047, 0x8058):
 857         case FORMAT_HASH(0, 1, 0x2100, 0, 4, 0x1e01, 0x00077047, 0x8051):
 858                 /* Tested with:
 859                         Quake3demo
 860                         */
 861                 return 0x53a0c;
 862         case  FORMAT_HASH(0, 1, 0x2100, 0, 1, 0x2100, 0x00055045, 0x00008056):
 863         case  FORMAT_HASH(0, 1, 0x2100, 0, 1, 0x2100, 0x00088045, 0x00008056):
 864                 return 0x53a23;
 865         case FORMAT_HASH(0, 1, 0x2100, 0, 4, 0x1e01, 0x00099004, 0x00008050):
 866                 return 0;
 867                 return 0x2a0b;
 868         }
 869         //      return 0x53a0c;
 870
 871         /* Just key on internal format  - useful for quick tryouts*/
 872
 873                 return 0;
 874         #if 1
 875         switch(IntFormat
 876                 ){
 877         case 0x3:
 878                 return 0x53a0c;
 879         case 0x8050:
 880                 return 0x2a0b;
 881         case 0x8056:
 882
 883                 return 0x53a23;
 884         case 0x8058:
 885                 return 0;
 886                 return 0x8a0c;
 887                 //fprintf(stderr, "%08x\n", format);
 888                 /* Tested with:
 889                         Quake3demo
 890                         */
 891                 return 0x53a0c;
 892         default:
 893                 return 0x53a0c;
 894         }
 895         #endif
 896
 897
 898
 899         {
 900                 static int warn_once=1;
 901                 if(warn_once){
 902                         fprintf(stderr, "%s:%s Do not know how to translate texture format - help me !\n",
 903                                 __FILE__, __FUNCTION__);
 904                         warn_once=0;
 905                         }
 906         }
 907                 return 0;
 908 }
 909
 910 void r300_setup_textures(GLcontext *ctx)
 911 {
 912         int i, mtu;
 913         struct r300_tex_obj *t;
 914         r300ContextPtr r300 = R300_CONTEXT(ctx);
 915         int max_texture_unit=-1; /* -1 translates into no setup costs for fields */
 916         struct gl_texture_unit *texUnit;
 917
 918         R300_STATECHANGE(r300, txe);
 919         R300_STATECHANGE(r300, tex.filter);
 920         R300_STATECHANGE(r300, tex.unknown1);
 921         R300_STATECHANGE(r300, tex.size);
 922         R300_STATECHANGE(r300, tex.format);
 923         R300_STATECHANGE(r300, tex.offset);
 924         R300_STATECHANGE(r300, tex.unknown4);
 925         R300_STATECHANGE(r300, tex.unknown5);
 926
 927         r300->state.texture.tc_count=0;
 928
 929         r300->hw.txe.cmd[R300_TXE_ENABLE]=0x0;
 930
 931         mtu = r300->radeon.glCtx->Const.MaxTextureUnits;
 932         if (RADEON_DEBUG & DEBUG_STATE)
 933                 fprintf(stderr, "mtu=%d\n", mtu);
 934
 935         if(mtu>R300_MAX_TEXTURE_UNITS){
 936                 fprintf(stderr, "Aiiee ! mtu=%d is greater than R300_MAX_TEXTURE_UNITS=%d\n",
 937                         mtu, R300_MAX_TEXTURE_UNITS);
 938                 exit(-1);
 939                 }
 940         for(i=0;i<mtu;i++){
 941                 if(ctx->Texture.Unit[i].Enabled){
 942                         t=r300->state.texture.unit[i].texobj;
 943                         r300->state.texture.tc_count++;
 944                         if(t==NULL){
 945                                 fprintf(stderr, "Texture unit %d enabled, but corresponding texobj is NULL, using default object.\n", i);
 946                                 //exit(-1);
 947                                 t=&default_tex_obj;
 948                                 }
 949                         if (RADEON_DEBUG & DEBUG_STATE)
 950                                 fprintf(stderr, "Activating texture unit %d\n", i);
 951                         max_texture_unit=i;
 952                         r300->hw.txe.cmd[R300_TXE_ENABLE]|=(1<<i);
 953
 954                         r300->hw.tex.filter.cmd[R300_TEX_VALUE_0+i]=t->filter;
 955                         r300->hw.tex.unknown1.cmd[R300_TEX_VALUE_0+i]=t->pitch;
 956                         r300->hw.tex.size.cmd[R300_TEX_VALUE_0+i]=t->size;
 957                         r300->hw.tex.format.cmd[R300_TEX_VALUE_0+i]=t->format;
 958                         r300->hw.tex.offset.cmd[R300_TEX_VALUE_0+i]=r300->radeon.radeonScreen->fbLocation+t->offset;
 959                         r300->hw.tex.unknown4.cmd[R300_TEX_VALUE_0+i]=0x0;
 960                         r300->hw.tex.unknown5.cmd[R300_TEX_VALUE_0+i]=0x0;
 961
 962
 963
 964                         /* We don't know how to set this yet */
 965                         //value from r300_lib.c for RGB24
 966                         //r300->hw.tex.format.cmd[R300_TEX_VALUE_0+i]=0x88a0c;
 967                         r300->hw.tex.format.cmd[R300_TEX_VALUE_0+i]=translate_texture_format(ctx, i, t->format, t->base.tObj->Image[0][0]->IntFormat);
 968                         /* Use the code below to quickly find matching texture
 969                            formats. Requires an app that displays the same texture
 970                            repeatedly  */
 971                               #if 1
 972                                 if(r300->hw.tex.format.cmd[R300_TEX_VALUE_0+i]==0){
 973                                         static int fmt=0x0;
 974                                         static int k=0;
 975                                         k++;
 976                                         if(k>400){
 977                                                 k=0;
 978                                                 fmt++;
 979                                                 texUnit = &ctx->Texture.Unit[i];
 980                                                 fprintf(stderr, "Want to set FORMAT_HASH(%d, %d, 0x%04x, %d, %d, 0x%04x, 0x%08x, 0x%08x)\n",
 981                                                         texUnit->_CurrentCombine->OperandRGB[0] -GL_SRC_COLOR,
 982                                                         translate_src(texUnit->_CurrentCombine->SourceRGB[0]),
 983                                                         texUnit->_CurrentCombine->ModeRGB,
 984                                                         texUnit->_CurrentCombine->OperandA[0] -GL_SRC_ALPHA,
 985                                                         translate_src(texUnit->_CurrentCombine->SourceA[0]),
 986                                                         texUnit->_CurrentCombine->ModeA,
 987                                                         t->format,
 988                                                         t->base.tObj->Image[0][0]->IntFormat
 989                                                         );
 990                                                 fprintf(stderr, "Also known: format_x=%08x border_color=%08x cubic_faces=%08x\n", t->format_x, t->pp_border_color, t->pp_cubic_faces);
 991                                                 fprintf(stderr, "\t_ReallyEnabled=%08x EnvMode=%08x IntFormat=%08x\n", texUnit->_ReallyEnabled, texUnit->EnvMode,  t->base.tObj->Image[0][0]->IntFormat);
 992                                                 if(fmt>0xff){
 993                                                         //exit(-1);
 994                                                         fmt=0;
 995                                                         }
 996                                                 //sleep(1);
 997                                                 fprintf(stderr, "Now trying format %08x\n",
 998                                                         0x00a0c | (fmt<<12));
 999                                                 fprintf(stderr, "size=%08x\n", t->size);
1000                                                 }
1001                                         r300->hw.tex.format.cmd[R300_TEX_VALUE_0+i]=0x00a0b | (fmt<<12);
1002                                         //r300->hw.tex.format.cmd[R300_TEX_VALUE_0+i]=0x51a00 | (fmt);
1003                                         //r300->hw.tex.format.cmd[R300_TEX_VALUE_0+i]=0x53a0c | (fmt<<24);
1004                                         }
1005                               #endif
1006
1007                         }
1008
1009                 }
1010         ((drm_r300_cmd_header_t*)r300->hw.tex.filter.cmd)->unchecked_state.count = max_texture_unit+1;
1011         ((drm_r300_cmd_header_t*)r300->hw.tex.unknown1.cmd)->unchecked_state.count = max_texture_unit+1;
1012         ((drm_r300_cmd_header_t*)r300->hw.tex.size.cmd)->unchecked_state.count = max_texture_unit+1;
1013         ((drm_r300_cmd_header_t*)r300->hw.tex.format.cmd)->unchecked_state.count = max_texture_unit+1;
1014         ((drm_r300_cmd_header_t*)r300->hw.tex.offset.cmd)->unchecked_state.count = max_texture_unit+1;
1015         ((drm_r300_cmd_header_t*)r300->hw.tex.unknown4.cmd)->unchecked_state.count = max_texture_unit+1;
1016         ((drm_r300_cmd_header_t*)r300->hw.tex.unknown5.cmd)->unchecked_state.count = max_texture_unit+1;
1017
1018         if (RADEON_DEBUG & DEBUG_STATE)
1019                 fprintf(stderr, "TX_ENABLE: %08x  max_texture_unit=%d\n", r300->hw.txe.cmd[R300_TXE_ENABLE], max_texture_unit);
1020 }
1021
1022 void r300_setup_rs_unit(GLcontext *ctx)
1023 {
1024         r300ContextPtr r300 = R300_CONTEXT(ctx);
1025         int i;
1026
1027         /* This needs to be rewritten - it is a hack at best */
1028
1029         R300_STATECHANGE(r300, ri);
1030         R300_STATECHANGE(r300, rc);
1031         R300_STATECHANGE(r300, rr);
1032
1033         for(i = 1; i <= 8; ++i)
1034                 r300->hw.ri.cmd[i] = 0x00d10000;
1035         r300->hw.ri.cmd[R300_RI_INTERP_1] |= R300_RS_INTERP_1_UNKNOWN;
1036         r300->hw.ri.cmd[R300_RI_INTERP_2] |= R300_RS_INTERP_2_UNKNOWN;
1037         r300->hw.ri.cmd[R300_RI_INTERP_3] |= R300_RS_INTERP_3_UNKNOWN;
1038
1039         for(i = 1; i <= 8; ++i)
1040                 r300->hw.rr.cmd[i] = 0;
1041         /* textures enabled ? */
1042         if(r300->state.texture.tc_count>0){
1043
1044                 /* This code only really works with one set of texture coordinates */
1045
1046                 /* The second constant is needed to get glxgears display anything .. */
1047                 r300->hw.rc.cmd[1] = R300_RS_CNTL_0_UNKNOWN_7
1048                                 | R300_RS_CNTL_0_UNKNOWN_18
1049                                 | (r300->state.texture.tc_count<<R300_RS_CNTL_TC_CNT_SHIFT);
1050                 r300->hw.rc.cmd[2] = 0xc0;
1051
1052
1053                 ((drm_r300_cmd_header_t*)r300->hw.rr.cmd)->unchecked_state.count = 1;
1054                 r300->hw.rr.cmd[R300_RR_ROUTE_0] = 0x24008;
1055
1056                 } else {
1057
1058                 /* The second constant is needed to get glxgears display anything .. */
1059                 r300->hw.rc.cmd[1] = R300_RS_CNTL_0_UNKNOWN_7 | R300_RS_CNTL_0_UNKNOWN_18;
1060                 r300->hw.rc.cmd[2] = 0;
1061
1062                 ((drm_r300_cmd_header_t*)r300->hw.rr.cmd)->unchecked_state.count = 1;
1063                 r300->hw.rr.cmd[R300_RR_ROUTE_0] = 0x4000;
1064
1065                 }
1066 }
1067
1068 #define vpucount(ptr) (((drm_r300_cmd_header_t*)(ptr))->vpu.count)
1069
1070 #define bump_vpu_count(ptr, new_count)   do{\
1071         drm_r300_cmd_header_t* _p=((drm_r300_cmd_header_t*)(ptr));\
1072         int _nc=(new_count)/4; \
1073         if(_nc>_p->vpu.count)_p->vpu.count=_nc;\
1074         }while(0)
1075
1076 void static inline setup_vertex_shader_fragment(r300ContextPtr r300, int dest, struct r300_vertex_shader_fragment *vsf)
1077 {
1078         int i;
1079
1080         if(vsf->length==0)return;
1081
1082         if(vsf->length & 0x3){
1083                 fprintf(stderr,"VERTEX_SHADER_FRAGMENT must have length divisible by 4\n");
1084                 exit(-1);
1085                 }
1086
1087         switch((dest>>8) & 0xf){
1088         case 0:
1089                 R300_STATECHANGE(r300, vpi);
1090                 for(i=0;i<vsf->length;i++)
1091                         r300->hw.vpi.cmd[R300_VPI_INSTR_0+i+4*(dest & 0xff)]=(vsf->body.d[i]);
1092                 bump_vpu_count(r300->hw.vpi.cmd, vsf->length+4*(dest & 0xff));
1093                 break;
1094
1095         case 2:
1096                 R300_STATECHANGE(r300, vpp);
1097                 for(i=0;i<vsf->length;i++)
1098                         r300->hw.vpp.cmd[R300_VPP_PARAM_0+i+4*(dest & 0xff)]=(vsf->body.d[i]);
1099                 bump_vpu_count(r300->hw.vpp.cmd, vsf->length+4*(dest & 0xff));
1100                 break;
1101         case 4:
1102                 R300_STATECHANGE(r300, vps);
1103                 for(i=0;i<vsf->length;i++)
1104                         r300->hw.vps.cmd[1+i+4*(dest & 0xff)]=(vsf->body.d[i]);
1105                 bump_vpu_count(r300->hw.vps.cmd, vsf->length+4*(dest & 0xff));
1106                 break;
1107         default:
1108                 fprintf(stderr, "%s:%s don't know how to handle dest %04x\n", __FILE__, __FUNCTION__, dest);
1109                 exit(-1);
1110         }
1111 }
1112
1113
1114 void r300SetupVertexShader(r300ContextPtr rmesa)
1115 {
1116         GLcontext* ctx = rmesa->radeon.glCtx;
1117
1118         /* Reset state, in case we don't use something */
1119         ((drm_r300_cmd_header_t*)rmesa->hw.vpp.cmd)->vpu.count = 0;
1120         ((drm_r300_cmd_header_t*)rmesa->hw.vpi.cmd)->vpu.count = 0;
1121         ((drm_r300_cmd_header_t*)rmesa->hw.vps.cmd)->vpu.count = 0;
1122
1123
1124 /* This needs to be replaced by vertex shader generation code */
1125
1126
1127         /* textures enabled ? */
1128         if(rmesa->state.texture.tc_count>0){
1129                 rmesa->state.vertex_shader=SINGLE_TEXTURE_VERTEX_SHADER;
1130                 } else {
1131                 rmesa->state.vertex_shader=FLAT_COLOR_VERTEX_SHADER;
1132                 }
1133
1134
1135         rmesa->state.vertex_shader.matrix[0].length=16;
1136         memcpy(rmesa->state.vertex_shader.matrix[0].body.f, ctx->_ModelProjectMatrix.m, 16*4);
1137
1138         setup_vertex_shader_fragment(rmesa, VSF_DEST_PROGRAM, &(rmesa->state.vertex_shader.program));
1139
1140         setup_vertex_shader_fragment(rmesa, VSF_DEST_MATRIX0, &(rmesa->state.vertex_shader.matrix[0]));
1141         #if 0
1142         setup_vertex_shader_fragment(rmesa, VSF_DEST_MATRIX1, &(rmesa->state.vertex_shader.matrix[0]));
1143         setup_vertex_shader_fragment(rmesa, VSF_DEST_MATRIX2, &(rmesa->state.vertex_shader.matrix[0]));
1144
1145         setup_vertex_shader_fragment(rmesa, VSF_DEST_VECTOR0, &(rmesa->state.vertex_shader.vector[0]));
1146         setup_vertex_shader_fragment(rmesa, VSF_DEST_VECTOR1, &(rmesa->state.vertex_shader.vector[1]));
1147         #endif
1148
1149         #if 0
1150         setup_vertex_shader_fragment(rmesa, VSF_DEST_UNKNOWN1, &(rmesa->state.vertex_shader.unknown1));
1151         setup_vertex_shader_fragment(rmesa, VSF_DEST_UNKNOWN2, &(rmesa->state.vertex_shader.unknown2));
1152         #endif
1153
1154         R300_STATECHANGE(rmesa, pvs);
1155         rmesa->hw.pvs.cmd[R300_PVS_CNTL_1]=(rmesa->state.vertex_shader.program_start << R300_PVS_CNTL_1_PROGRAM_START_SHIFT)
1156                 | (rmesa->state.vertex_shader.unknown_ptr1 << R300_PVS_CNTL_1_UNKNOWN_SHIFT)
1157                 | (rmesa->state.vertex_shader.program_end << R300_PVS_CNTL_1_PROGRAM_END_SHIFT);
1158         rmesa->hw.pvs.cmd[R300_PVS_CNTL_2]=(rmesa->state.vertex_shader.param_offset << R300_PVS_CNTL_2_PARAM_OFFSET_SHIFT)
1159                 | (rmesa->state.vertex_shader.param_count << R300_PVS_CNTL_2_PARAM_COUNT_SHIFT);
1160         rmesa->hw.pvs.cmd[R300_PVS_CNTL_3]=(rmesa->state.vertex_shader.unknown_ptr2 << R300_PVS_CNTL_3_PROGRAM_UNKNOWN_SHIFT)
1161         | (rmesa->state.vertex_shader.unknown_ptr3 << 0);
1162
1163         /* This is done for vertex shader fragments, but also needs to be done for vap_pvs,
1164         so I leave it as a reminder */
1165         #if 0
1166         reg_start(R300_VAP_PVS_WAITIDLE,0);
1167                 e32(0x00000000);
1168         #endif
1169 }
1170
1171 void r300SetupPixelShader(r300ContextPtr rmesa)
1172 {
1173 int i,k;
1174
1175         /* This needs to be replaced by pixel shader generation code */
1176
1177         /* textures enabled ? */
1178         if(rmesa->state.texture.tc_count>0){
1179                 rmesa->state.pixel_shader=SINGLE_TEXTURE_PIXEL_SHADER;
1180                 } else {
1181                 rmesa->state.pixel_shader=FLAT_COLOR_PIXEL_SHADER;
1182                 }
1183
1184         R300_STATECHANGE(rmesa, fpt);
1185         for(i=0;i<rmesa->state.pixel_shader.program.tex.length;i++)
1186                 rmesa->hw.fpt.cmd[R300_FPT_INSTR_0+i]=rmesa->state.pixel_shader.program.tex.inst[i];
1187         rmesa->hw.fpt.cmd[R300_FPT_CMD_0]=cmducs(R300_PFS_TEXI_0, rmesa->state.pixel_shader.program.tex.length);
1188
1189         #define OUTPUT_FIELD(st, reg, field)  \
1190                 R300_STATECHANGE(rmesa, st); \
1191                 for(i=0;i<rmesa->state.pixel_shader.program.alu.length;i++) \
1192                         rmesa->hw.st.cmd[R300_FPI_INSTR_0+i]=rmesa->state.pixel_shader.program.alu.inst[i].field;\
1193                 rmesa->hw.st.cmd[R300_FPI_CMD_0]=cmducs(reg, rmesa->state.pixel_shader.program.alu.length);
1194
1195         OUTPUT_FIELD(fpi[0], R300_PFS_INSTR0_0, inst0);
1196         OUTPUT_FIELD(fpi[1], R300_PFS_INSTR1_0, inst1);
1197         OUTPUT_FIELD(fpi[2], R300_PFS_INSTR2_0, inst2);
1198         OUTPUT_FIELD(fpi[3], R300_PFS_INSTR3_0, inst3);
1199         #undef OUTPUT_FIELD
1200
1201         R300_STATECHANGE(rmesa, fp);
1202         for(i=0;i<4;i++){
1203                 rmesa->hw.fp.cmd[R300_FP_NODE0+i]=
1204                 (rmesa->state.pixel_shader.program.node[i].alu_offset << R300_PFS_NODE_ALU_OFFSET_SHIFT)
1205                 | (rmesa->state.pixel_shader.program.node[i].alu_end  << R300_PFS_NODE_ALU_END_SHIFT)
1206                 | (rmesa->state.pixel_shader.program.node[i].tex_offset << R300_PFS_NODE_TEX_OFFSET_SHIFT)
1207                 | (rmesa->state.pixel_shader.program.node[i].tex_end  << R300_PFS_NODE_TEX_END_SHIFT)
1208                 | ( (i==3) ? R300_PFS_NODE_LAST_NODE : 0);
1209                 }
1210
1211                 /*  PFS_CNTL_0 */
1212         rmesa->hw.fp.cmd[R300_FP_CNTL0]=
1213                 (rmesa->state.pixel_shader.program.active_nodes-1)
1214                 | (rmesa->state.pixel_shader.program.first_node_has_tex<<3);
1215                 /* PFS_CNTL_1 */
1216         rmesa->hw.fp.cmd[R300_FP_CNTL1]=rmesa->state.pixel_shader.program.temp_register_count;
1217                 /* PFS_CNTL_2 */
1218         rmesa->hw.fp.cmd[R300_FP_CNTL2]=
1219                 (rmesa->state.pixel_shader.program.alu_offset << R300_PFS_CNTL_ALU_OFFSET_SHIFT)
1220                 | (rmesa->state.pixel_shader.program.alu_end << R300_PFS_CNTL_ALU_END_SHIFT)
1221                 | (rmesa->state.pixel_shader.program.tex_offset << R300_PFS_CNTL_TEX_OFFSET_SHIFT)
1222                 | (rmesa->state.pixel_shader.program.tex_end << R300_PFS_CNTL_TEX_END_SHIFT);
1223
1224         R300_STATECHANGE(rmesa, fpp);
1225         for(i=0;i<rmesa->state.pixel_shader.param_length;i++){
1226                 rmesa->hw.fpp.cmd[R300_FPP_PARAM_0+4*i+0]=r300PackFloat32(rmesa->state.pixel_shader.param[i].x);
1227                 rmesa->hw.fpp.cmd[R300_FPP_PARAM_0+4*i+1]=r300PackFloat32(rmesa->state.pixel_shader.param[i].y);
1228                 rmesa->hw.fpp.cmd[R300_FPP_PARAM_0+4*i+2]=r300PackFloat32(rmesa->state.pixel_shader.param[i].z);
1229                 rmesa->hw.fpp.cmd[R300_FPP_PARAM_0+4*i+3]=r300PackFloat32(rmesa->state.pixel_shader.param[i].w);
1230                 }
1231         rmesa->hw.fpp.cmd[R300_FPP_CMD_0]=cmducs(R300_PFS_PARAM_0_X, rmesa->state.pixel_shader.param_length);
1232
1233 }
1234
1235 /**
1236  * Called by Mesa after an internal state update.
1237  */
1238 static void r300InvalidateState(GLcontext * ctx, GLuint new_state)
1239 {
1240         r300ContextPtr r300 = R300_CONTEXT(ctx);
1241
1242         _swrast_InvalidateState(ctx, new_state);
1243         _swsetup_InvalidateState(ctx, new_state);
1244         _ac_InvalidateState(ctx, new_state);
1245         _tnl_InvalidateState(ctx, new_state);
1246         _ae_invalidate_state(ctx, new_state);
1247
1248         /* Go inefficiency! */
1249         r300ResetHwState(r300);
1250 }
1251
1252
1253 /**
1254  * Completely recalculates hardware state based on the Mesa state.
1255  */
1256 void r300ResetHwState(r300ContextPtr r300)
1257 {
1258         GLcontext* ctx = r300->radeon.glCtx;
1259         int i;
1260
1261         if (RADEON_DEBUG & DEBUG_STATE)
1262                 fprintf(stderr, "%s\n", __FUNCTION__);
1263
1264         r300UpdateWindow(ctx);
1265
1266         r300ColorMask(ctx,
1267                 ctx->Color.ColorMask[RCOMP],
1268                 ctx->Color.ColorMask[GCOMP],
1269                 ctx->Color.ColorMask[BCOMP],
1270                 ctx->Color.ColorMask[ACOMP]);
1271
1272         r300Enable(ctx, GL_DEPTH_TEST, ctx->Depth.Test);
1273         r300DepthMask(ctx, ctx->Depth.Mask);
1274         r300DepthFunc(ctx, ctx->Depth.Func);
1275
1276         r300UpdateCulling(ctx);
1277
1278         r300_setup_routing(ctx, GL_TRUE);
1279
1280         r300UpdateTextureState(ctx);
1281         r300_setup_textures(ctx);
1282         r300_setup_rs_unit(ctx);
1283
1284         r300SetupVertexShader(r300);
1285         r300SetupPixelShader(r300);
1286
1287         r300_set_blend_state(ctx);
1288         r300AlphaFunc(ctx, ctx->Color.AlphaFunc, ctx->Color.AlphaRef);
1289
1290 //BEGIN: TODO
1291         r300->hw.unk2080.cmd[1] = 0x0030045A;
1292
1293         r300->hw.ovf.cmd[R300_OVF_FMT_0] = 0x00000003;
1294         r300->hw.ovf.cmd[R300_OVF_FMT_1] = 0x00000000;
1295
1296         r300->hw.vte.cmd[1] = R300_VPORT_X_SCALE_ENA
1297                                 | R300_VPORT_X_OFFSET_ENA
1298                                 | R300_VPORT_Y_SCALE_ENA
1299                                 | R300_VPORT_Y_OFFSET_ENA
1300                                 | R300_VPORT_Z_SCALE_ENA
1301                                 | R300_VPORT_Z_OFFSET_ENA
1302                                 | R300_VTX_W0_FMT;
1303         r300->hw.vte.cmd[2] = 0x00000008;
1304
1305         r300->hw.unk2134.cmd[1] = 0x00FFFFFF;
1306         r300->hw.unk2134.cmd[2] = 0x00000000;
1307
1308         r300->hw.unk2140.cmd[1] = 0x00000000;
1309
1310         #if 0 /* Done in setup routing */
1311         ((drm_r300_cmd_header_t*)r300->hw.vir[0].cmd)->unchecked_state.count = 1;
1312         r300->hw.vir[0].cmd[1] = 0x21030003;
1313
1314         ((drm_r300_cmd_header_t*)r300->hw.vir[1].cmd)->unchecked_state.count = 1;
1315         r300->hw.vir[1].cmd[1] = 0xF688F688;
1316
1317         r300->hw.vic.cmd[R300_VIR_CNTL_0] = 0x00000001;
1318         r300->hw.vic.cmd[R300_VIR_CNTL_1] = 0x00000405;
1319         #endif
1320
1321         r300->hw.unk21DC.cmd[1] = 0xAAAAAAAA;
1322
1323         r300->hw.unk221C.cmd[1] = R300_221C_NORMAL;
1324
1325         r300->hw.unk2220.cmd[1] = r300PackFloat32(1.0);
1326         r300->hw.unk2220.cmd[2] = r300PackFloat32(1.0);
1327         r300->hw.unk2220.cmd[3] = r300PackFloat32(1.0);
1328         r300->hw.unk2220.cmd[4] = r300PackFloat32(1.0);
1329
1330         if (GET_CHIP(r300->radeon.radeonScreen) == RADEON_CHIP_R300)
1331                 r300->hw.unk2288.cmd[1] = R300_2288_R300;
1332         else
1333                 r300->hw.unk2288.cmd[1] = R300_2288_RV350;
1334
1335         #if 0
1336         r300->hw.vof.cmd[R300_VOF_CNTL_0] = R300_VAP_OUTPUT_VTX_FMT_0__POS_PRESENT
1337                                 | R300_VAP_OUTPUT_VTX_FMT_0__COLOR_PRESENT;
1338         r300->hw.vof.cmd[R300_VOF_CNTL_1] = 0; /* no textures */
1339
1340
1341         r300->hw.pvs.cmd[R300_PVS_CNTL_1] = 0;
1342         r300->hw.pvs.cmd[R300_PVS_CNTL_2] = 0;
1343         r300->hw.pvs.cmd[R300_PVS_CNTL_3] = 0;
1344         #endif
1345
1346         r300->hw.gb_enable.cmd[1] = R300_GB_POINT_STUFF_ENABLE
1347                 | R300_GB_LINE_STUFF_ENABLE
1348                 | R300_GB_TRIANGLE_STUFF_ENABLE;
1349
1350         r300->hw.gb_misc.cmd[R300_GB_MISC_MSPOS_0] = 0x66666666;
1351         r300->hw.gb_misc.cmd[R300_GB_MISC_MSPOS_1] = 0x06666666;
1352         if (GET_CHIP(r300->radeon.radeonScreen) == RADEON_CHIP_R300)
1353                 r300->hw.gb_misc.cmd[R300_GB_MISC_TILE_CONFIG] = R300_GB_TILE_ENABLE
1354                                                         | R300_GB_TILE_PIPE_COUNT_R300
1355                                                         | R300_GB_TILE_SIZE_16;
1356         else
1357                 r300->hw.gb_misc.cmd[R300_GB_MISC_TILE_CONFIG] = R300_GB_TILE_ENABLE
1358                                                         | R300_GB_TILE_PIPE_COUNT_RV300
1359                                                         | R300_GB_TILE_SIZE_16;
1360         r300->hw.gb_misc.cmd[R300_GB_MISC_SELECT] = 0x00000000;
1361         r300->hw.gb_misc.cmd[R300_GB_MISC_AA_CONFIG] = 0x00000000; /* No antialiasing */
1362
1363         //r300->hw.txe.cmd[R300_TXE_ENABLE] = 0;
1364
1365         r300->hw.unk4200.cmd[1] = r300PackFloat32(0.0);
1366         r300->hw.unk4200.cmd[2] = r300PackFloat32(0.0);
1367         r300->hw.unk4200.cmd[3] = r300PackFloat32(1.0);
1368         r300->hw.unk4200.cmd[4] = r300PackFloat32(1.0);
1369
1370         r300->hw.unk4214.cmd[1] = 0x00050005;
1371
1372         r300->hw.ps.cmd[R300_PS_POINTSIZE] = (6 << R300_POINTSIZE_X_SHIFT) |
1373                                              (6 << R300_POINTSIZE_Y_SHIFT);
1374
1375         r300->hw.unk4230.cmd[1] = 0x01800000;
1376         r300->hw.unk4230.cmd[2] = 0x00020006;
1377         r300->hw.unk4230.cmd[3] = r300PackFloat32(1.0 / 192.0);
1378
1379         r300->hw.unk4260.cmd[1] = 0;
1380         r300->hw.unk4260.cmd[2] = r300PackFloat32(0.0);
1381         r300->hw.unk4260.cmd[3] = r300PackFloat32(1.0);
1382
1383         r300->hw.unk4274.cmd[1] = 0x00000002;
1384         r300->hw.unk4274.cmd[2] = 0x0003AAAA;
1385         r300->hw.unk4274.cmd[3] = 0x00000000;
1386         r300->hw.unk4274.cmd[4] = 0x00000000;
1387
1388         r300->hw.unk4288.cmd[1] = 0x00000000;
1389         r300->hw.unk4288.cmd[2] = 0x00000001;
1390         r300->hw.unk4288.cmd[3] = 0x00000000;
1391         r300->hw.unk4288.cmd[4] = 0x00000000;
1392         r300->hw.unk4288.cmd[5] = 0x00000000;
1393
1394         r300->hw.unk42A0.cmd[1] = 0x00000000;
1395
1396         r300->hw.unk42B4.cmd[1] = 0x00000000;
1397
1398         r300->hw.unk42C0.cmd[1] = 0x4B7FFFFF;
1399         r300->hw.unk42C0.cmd[2] = 0x00000000;
1400
1401
1402         r300->hw.unk43A4.cmd[1] = 0x0000001C;
1403         r300->hw.unk43A4.cmd[2] = 0x2DA49525;
1404
1405         r300->hw.unk43E8.cmd[1] = 0x00FFFFFF;
1406
1407         #if 0
1408         r300->hw.fp.cmd[R300_FP_CNTL0] = 0;
1409         r300->hw.fp.cmd[R300_FP_CNTL1] = 0;
1410         r300->hw.fp.cmd[R300_FP_CNTL2] = 0;
1411         r300->hw.fp.cmd[R300_FP_NODE0] = 0;
1412         r300->hw.fp.cmd[R300_FP_NODE1] = 0;
1413         r300->hw.fp.cmd[R300_FP_NODE2] = 0;
1414         r300->hw.fp.cmd[R300_FP_NODE3] = 0;
1415         #endif
1416
1417         r300->hw.unk46A4.cmd[1] = 0x00001B01;
1418         r300->hw.unk46A4.cmd[2] = 0x00001B0F;
1419         r300->hw.unk46A4.cmd[3] = 0x00001B0F;
1420         r300->hw.unk46A4.cmd[4] = 0x00001B0F;
1421         r300->hw.unk46A4.cmd[5] = 0x00000001;
1422
1423         #if 0
1424         for(i = 1; i <= 64; ++i) {
1425                 /* create NOP instructions */
1426                 r300->hw.fpi[0].cmd[i] = FP_INSTRC(MAD, FP_ARGC(SRC0C_XYZ), FP_ARGC(ONE), FP_ARGC(ZERO));
1427                 r300->hw.fpi[1].cmd[i] = FP_SELC(0,XYZ,NO,FP_TMP(0),0,0);
1428                 r300->hw.fpi[2].cmd[i] = FP_INSTRA(MAD, FP_ARGA(SRC0A), FP_ARGA(ONE), FP_ARGA(ZERO));
1429                 r300->hw.fpi[3].cmd[i] = FP_SELA(0,W,NO,FP_TMP(0),0,0);
1430         }
1431         #endif
1432
1433         r300->hw.unk4BC0.cmd[1] = 0;
1434
1435         r300->hw.unk4BC8.cmd[1] = 0;
1436         r300->hw.unk4BC8.cmd[2] = 0;
1437         r300->hw.unk4BC8.cmd[3] = 0;
1438
1439         #if 0
1440         r300->hw.at.cmd[R300_AT_ALPHA_TEST] = 0;
1441         #endif
1442
1443         r300->hw.unk4BD8.cmd[1] = 0;
1444
1445         r300->hw.unk4E00.cmd[1] = 0;
1446
1447         #if 0
1448         r300->hw.bld.cmd[R300_BLD_CBLEND] = 0;
1449         r300->hw.bld.cmd[R300_BLD_ABLEND] = 0;
1450         #endif
1451
1452         r300->hw.unk4E10.cmd[1] = 0;
1453         r300->hw.unk4E10.cmd[2] = 0;
1454         r300->hw.unk4E10.cmd[3] = 0;
1455
1456         r300->hw.cb.cmd[R300_CB_OFFSET] =
1457                 r300->radeon.radeonScreen->backOffset +
1458                 r300->radeon.radeonScreen->fbLocation;
1459         r300->hw.cb.cmd[R300_CB_PITCH] = r300->radeon.radeonScreen->backPitch
1460                 | R300_COLOR_UNKNOWN_22_23;
1461
1462         r300->hw.unk4E50.cmd[1] = 0;
1463         r300->hw.unk4E50.cmd[2] = 0;
1464         r300->hw.unk4E50.cmd[3] = 0;
1465         r300->hw.unk4E50.cmd[4] = 0;
1466         r300->hw.unk4E50.cmd[5] = 0;
1467         r300->hw.unk4E50.cmd[6] = 0;
1468         r300->hw.unk4E50.cmd[7] = 0;
1469         r300->hw.unk4E50.cmd[8] = 0;
1470         r300->hw.unk4E50.cmd[9] = 0;
1471
1472         r300->hw.unk4E88.cmd[1] = 0;
1473
1474         r300->hw.unk4EA0.cmd[1] = 0x00000000;
1475         r300->hw.unk4EA0.cmd[2] = 0xffffffff;
1476
1477         r300->hw.unk4F08.cmd[1] = 0x00FFFF00;
1478
1479         r300->hw.unk4F10.cmd[1] = 0x00000002; // depthbuffer format?
1480         r300->hw.unk4F10.cmd[2] = 0x00000000;
1481         r300->hw.unk4F10.cmd[3] = 0x00000003;
1482         r300->hw.unk4F10.cmd[4] = 0x00000000;
1483
1484         r300->hw.zb.cmd[R300_ZB_OFFSET] =
1485                 r300->radeon.radeonScreen->depthOffset +
1486                 r300->radeon.radeonScreen->fbLocation;
1487         r300->hw.zb.cmd[R300_ZB_PITCH] = r300->radeon.radeonScreen->depthPitch;
1488
1489         r300->hw.unk4F28.cmd[1] = 0;
1490
1491         r300->hw.unk4F30.cmd[1] = 0;
1492         r300->hw.unk4F30.cmd[2] = 0;
1493
1494         r300->hw.unk4F44.cmd[1] = 0;
1495
1496         r300->hw.unk4F54.cmd[1] = 0;
1497
1498         #if 0
1499         ((drm_r300_cmd_header_t*)r300->hw.vpi.cmd)->vpu.count = 0;
1500         for(i = 1; i < R300_VPI_CMDSIZE; i += 4) {
1501                 /* MOV t0, t0 */
1502                 r300->hw.vpi.cmd[i+0] = VP_OUT(ADD,TMP,0,XYZW);
1503                 r300->hw.vpi.cmd[i+1] = VP_IN(TMP,0);
1504                 r300->hw.vpi.cmd[i+2] = VP_ZERO();
1505                 r300->hw.vpi.cmd[i+3] = VP_ZERO();
1506         }
1507
1508         ((drm_r300_cmd_header_t*)r300->hw.vpp.cmd)->vpu.count = 0;
1509         for(i = 1; i < R300_VPP_CMDSIZE; ++i)
1510                 r300->hw.vpp.cmd[i] = 0;
1511         #endif
1512
1513         r300->hw.vps.cmd[R300_VPS_ZERO_0] = 0;
1514         r300->hw.vps.cmd[R300_VPS_ZERO_1] = 0;
1515         r300->hw.vps.cmd[R300_VPS_POINTSIZE] = r300PackFloat32(1.0);
1516         r300->hw.vps.cmd[R300_VPS_ZERO_3] = 0;
1517
1518 //END: TODO
1519
1520         r300->hw.all_dirty = GL_TRUE;
1521 }
1522
1523
1524
1525 /**
1526  * Calculate initial hardware state and register state functions.
1527  * Assumes that the command buffer and state atoms have been
1528  * initialized already.
1529  */
1530 void r300InitState(r300ContextPtr r300)
1531 {
1532         GLcontext *ctx = r300->radeon.glCtx;
1533         GLuint depth_fmt;
1534
1535         radeonInitState(&r300->radeon);
1536
1537         switch (ctx->Visual.depthBits) {
1538         case 16:
1539                 r300->state.depth.scale = 1.0 / (GLfloat) 0xffff;
1540                 depth_fmt = R200_DEPTH_FORMAT_16BIT_INT_Z;
1541                 //r300->state.stencil.clear = 0x00000000;
1542                 break;
1543         case 24:
1544                 r300->state.depth.scale = 1.0 / (GLfloat) 0xffffff;
1545                 depth_fmt = R200_DEPTH_FORMAT_24BIT_INT_Z;
1546                 //r300->state.stencil.clear = 0xff000000;
1547                 break;
1548         default:
1549                 fprintf(stderr, "Error: Unsupported depth %d... exiting\n",
1550                         ctx->Visual.depthBits);
1551                 exit(-1);
1552         }
1553
1554         memset(&(r300->state.texture), 0, sizeof(r300->state.texture));
1555
1556         r300ResetHwState(r300);
1557 }
1558
1559
1560
1561 /**
1562  * Initialize driver's state callback functions
1563  */
1564 void r300InitStateFuncs(struct dd_function_table* functions)
1565 {
1566         radeonInitStateFuncs(functions);
1567
1568         functions->UpdateState = r300InvalidateState;
1569         //functions->AlphaFunc = r300AlphaFunc;
1570         functions->BlendColor = r300BlendColor;
1571         functions->BlendEquationSeparate = r300BlendEquationSeparate;
1572         functions->BlendFuncSeparate = r300BlendFuncSeparate;
1573         functions->Enable = r300Enable;
1574         functions->ColorMask = r300ColorMask;
1575         functions->DepthFunc = r300DepthFunc;
1576         functions->DepthMask = r300DepthMask;
1577         functions->CullFace = r300CullFace;
1578         functions->FrontFace = r300FrontFace;
1579
1580         /* Viewport related */
1581         functions->Viewport = r300Viewport;
1582         functions->DepthRange = r300DepthRange;
1583         functions->PointSize = r300PointSize;
1584 }
1585