src/mesa/drivers/dri/nouveau/nv20_context.c

   1 /*
   2  * Copyright (C) 2009-2010 Francisco Jerez.
   3  * All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining
   6  * a copy of this software and associated documentation files (the
   7  * "Software"), to deal in the Software without restriction, including
   8  * without limitation the rights to use, copy, modify, merge, publish,
   9  * distribute, sublicense, and/or sell copies of the Software, and to
  10  * permit persons to whom the Software is furnished to do so, subject to
  11  * the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the
  14  * next paragraph) shall be included in all copies or substantial
  15  * portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  18  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  20  * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
  21  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  22  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  23  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24  *
  25  */
  26
  27 #include "nouveau_driver.h"
  28 #include "nouveau_context.h"
  29 #include "nouveau_class.h"
  30 #include "nv04_driver.h"
  31 #include "nv10_driver.h"
  32 #include "nv20_driver.h"
  33
  34 static const struct dri_extension nv20_extensions[] = {
  35         { "GL_EXT_texture_rectangle",   NULL },
  36         { NULL,                         NULL }
  37 };
  38
  39 static void
  40 nv20_hwctx_init(GLcontext *ctx)
  41 {
  42         struct nouveau_channel *chan = context_chan(ctx);
  43         struct nouveau_grobj *kelvin = context_eng3d(ctx);
  44         struct nouveau_hw_state *hw = &to_nouveau_context(ctx)->hw;
  45         int i;
  46
  47         BEGIN_RING(chan, kelvin, NV20TCL_DMA_NOTIFY, 1);
  48         OUT_RING  (chan, hw->ntfy->handle);
  49         BEGIN_RING(chan, kelvin, NV20TCL_DMA_TEXTURE0, 2);
  50         OUT_RING  (chan, chan->vram->handle);
  51         OUT_RING  (chan, chan->gart->handle);
  52         BEGIN_RING(chan, kelvin, NV20TCL_DMA_COLOR, 2);
  53         OUT_RING  (chan, chan->vram->handle);
  54         OUT_RING  (chan, chan->vram->handle);
  55         BEGIN_RING(chan, kelvin, NV20TCL_DMA_VTXBUF0, 2);
  56         OUT_RING(chan, chan->vram->handle);
  57         OUT_RING(chan, chan->gart->handle);
  58
  59         BEGIN_RING(chan, kelvin, NV20TCL_DMA_QUERY, 1);
  60         OUT_RING  (chan, 0);
  61
  62         BEGIN_RING(chan, kelvin, NV20TCL_RT_HORIZ, 2);
  63         OUT_RING  (chan, 0);
  64         OUT_RING  (chan, 0);
  65
  66         BEGIN_RING(chan, kelvin, NV20TCL_VIEWPORT_CLIP_HORIZ(0), 1);
  67         OUT_RING  (chan, 0xfff << 16 | 0x0);
  68         BEGIN_RING(chan, kelvin, NV20TCL_VIEWPORT_CLIP_VERT(0), 1);
  69         OUT_RING  (chan, 0xfff << 16 | 0x0);
  70
  71         for (i = 1; i < NV20TCL_VIEWPORT_CLIP_HORIZ__SIZE; i++) {
  72                 BEGIN_RING(chan, kelvin, NV20TCL_VIEWPORT_CLIP_HORIZ(i), 1);
  73                 OUT_RING  (chan, 0);
  74                 BEGIN_RING(chan, kelvin, NV20TCL_VIEWPORT_CLIP_VERT(i), 1);
  75                 OUT_RING  (chan, 0);
  76         }
  77
  78         BEGIN_RING(chan, kelvin, NV20TCL_VIEWPORT_CLIP_MODE, 1);
  79         OUT_RING  (chan, 0);
  80
  81         BEGIN_RING(chan, kelvin, 0x17e0, 3);
  82         OUT_RINGf (chan, 0.0);
  83         OUT_RINGf (chan, 0.0);
  84         OUT_RINGf (chan, 1.0);
  85
  86         if (context_chipset(ctx) >= 0x25) {
  87                 BEGIN_RING(chan, kelvin, NV20TCL_TX_RCOMP, 1);
  88                 OUT_RING  (chan, NV20TCL_TX_RCOMP_LEQUAL | 0xdb0);
  89         } else {
  90                 BEGIN_RING(chan, kelvin, 0x1e68, 1);
  91                 OUT_RING  (chan, 0x4b800000); /* 16777216.000000 */
  92                 BEGIN_RING(chan, kelvin, NV20TCL_TX_RCOMP, 1);
  93                 OUT_RING  (chan, NV20TCL_TX_RCOMP_LEQUAL);
  94         }
  95
  96         BEGIN_RING(chan, kelvin, 0x290, 1);
  97         OUT_RING  (chan, 0x10 << 16 | 1);
  98         BEGIN_RING(chan, kelvin, 0x9fc, 1);
  99         OUT_RING  (chan, 0);
 100         BEGIN_RING(chan, kelvin, 0x1d80, 1);
 101         OUT_RING  (chan, 1);
 102         BEGIN_RING(chan, kelvin, 0x9f8, 1);
 103         OUT_RING  (chan, 4);
 104         BEGIN_RING(chan, kelvin, 0x17ec, 3);
 105         OUT_RINGf (chan, 0.0);
 106         OUT_RINGf (chan, 1.0);
 107         OUT_RINGf (chan, 0.0);
 108
 109         if (context_chipset(ctx) >= 0x25) {
 110                 BEGIN_RING(chan, kelvin, 0x1d88, 1);
 111                 OUT_RING  (chan, 3);
 112
 113                 BEGIN_RING(chan, kelvin, NV25TCL_DMA_IN_MEMORY9, 1);
 114                 OUT_RING  (chan, chan->vram->handle);
 115                 BEGIN_RING(chan, kelvin, NV25TCL_DMA_IN_MEMORY8, 1);
 116                 OUT_RING  (chan, chan->vram->handle);
 117         }
 118
 119         BEGIN_RING(chan, kelvin, NV20TCL_DMA_FENCE, 1);
 120         OUT_RING  (chan, 0);
 121
 122         BEGIN_RING(chan, kelvin, 0x1e98, 1);
 123         OUT_RING  (chan, 0);
 124
 125         BEGIN_RING(chan, kelvin, NV20TCL_NOTIFY, 1);
 126         OUT_RING  (chan, 0);
 127
 128         BEGIN_RING(chan, kelvin, 0x120, 3);
 129         OUT_RING  (chan, 0);
 130         OUT_RING  (chan, 1);
 131         OUT_RING  (chan, 2);
 132
 133         if (context_chipset(ctx) >= 0x25) {
 134                 BEGIN_RING(chan, kelvin, 0x022c, 2);
 135                 OUT_RING  (chan, 0x280);
 136                 OUT_RING  (chan, 0x07d28000);
 137
 138                 BEGIN_RING(chan, kelvin, 0x1da4, 1);
 139                 OUT_RING  (chan, 0);
 140         }
 141
 142         BEGIN_RING(chan, kelvin, NV20TCL_RT_HORIZ, 2);
 143         OUT_RING  (chan, 0 << 16 | 0);
 144         OUT_RING  (chan, 0 << 16 | 0);
 145
 146         BEGIN_RING(chan, kelvin, NV20TCL_ALPHA_FUNC_ENABLE, 1);
 147         OUT_RING  (chan, 0);
 148         BEGIN_RING(chan, kelvin, NV20TCL_ALPHA_FUNC_FUNC, 2);
 149         OUT_RING  (chan, NV20TCL_ALPHA_FUNC_FUNC_ALWAYS);
 150         OUT_RING  (chan, 0);
 151
 152         for (i = 0; i < NV20TCL_TX_ENABLE__SIZE; i++) {
 153                 BEGIN_RING(chan, kelvin, NV20TCL_TX_ENABLE(i), 1);
 154                 OUT_RING  (chan, 0);
 155         }
 156
 157         BEGIN_RING(chan, kelvin, NV20TCL_TX_SHADER_OP, 1);
 158         OUT_RING  (chan, 0);
 159         BEGIN_RING(chan, kelvin, NV20TCL_TX_SHADER_CULL_MODE, 1);
 160         OUT_RING  (chan, 0);
 161
 162         BEGIN_RING(chan, kelvin, NV20TCL_RC_IN_ALPHA(0), 4);
 163         OUT_RING  (chan, 0x30d410d0);
 164         OUT_RING  (chan, 0);
 165         OUT_RING  (chan, 0);
 166         OUT_RING  (chan, 0);
 167         BEGIN_RING(chan, kelvin, NV20TCL_RC_OUT_RGB(0), 4);
 168         OUT_RING  (chan, 0x00000c00);
 169         OUT_RING  (chan, 0);
 170         OUT_RING  (chan, 0);
 171         OUT_RING  (chan, 0);
 172         BEGIN_RING(chan, kelvin, NV20TCL_RC_ENABLE, 1);
 173         OUT_RING  (chan, 0x00011101);
 174         BEGIN_RING(chan, kelvin, NV20TCL_RC_FINAL0, 2);
 175         OUT_RING  (chan, 0x130e0300);
 176         OUT_RING  (chan, 0x0c091c80);
 177         BEGIN_RING(chan, kelvin, NV20TCL_RC_OUT_ALPHA(0), 4);
 178         OUT_RING  (chan, 0x00000c00);
 179         OUT_RING  (chan, 0);
 180         OUT_RING  (chan, 0);
 181         OUT_RING  (chan, 0);
 182         BEGIN_RING(chan, kelvin, NV20TCL_RC_IN_RGB(0), 4);
 183         OUT_RING  (chan, 0x20c400c0);
 184         OUT_RING  (chan, 0);
 185         OUT_RING  (chan, 0);
 186         OUT_RING  (chan, 0);
 187         BEGIN_RING(chan, kelvin, NV20TCL_RC_COLOR0, 2);
 188         OUT_RING  (chan, 0);
 189         OUT_RING  (chan, 0);
 190         BEGIN_RING(chan, kelvin, NV20TCL_RC_CONSTANT_COLOR0(0), 4);
 191         OUT_RING  (chan, 0x035125a0);
 192         OUT_RING  (chan, 0);
 193         OUT_RING  (chan, 0x40002000);
 194         OUT_RING  (chan, 0);
 195
 196         BEGIN_RING(chan, kelvin, NV20TCL_MULTISAMPLE_CONTROL, 1);
 197         OUT_RING  (chan, 0xffff0000);
 198         BEGIN_RING(chan, kelvin, NV20TCL_BLEND_FUNC_ENABLE, 1);
 199         OUT_RING  (chan, 0);
 200         BEGIN_RING(chan, kelvin, NV20TCL_DITHER_ENABLE, 1);
 201         OUT_RING  (chan, 0);
 202         BEGIN_RING(chan, kelvin, NV20TCL_STENCIL_ENABLE, 1);
 203         OUT_RING  (chan, 0);
 204         BEGIN_RING(chan, kelvin, NV20TCL_BLEND_FUNC_SRC, 4);
 205         OUT_RING  (chan, NV20TCL_BLEND_FUNC_SRC_ONE);
 206         OUT_RING  (chan, NV20TCL_BLEND_FUNC_DST_ZERO);
 207         OUT_RING  (chan, 0);
 208         OUT_RING  (chan, NV20TCL_BLEND_EQUATION_FUNC_ADD);
 209         BEGIN_RING(chan, kelvin, NV20TCL_STENCIL_MASK, 7);
 210         OUT_RING  (chan, 0xff);
 211         OUT_RING  (chan, NV20TCL_STENCIL_FUNC_FUNC_ALWAYS);
 212         OUT_RING  (chan, 0);
 213         OUT_RING  (chan, 0xff);
 214         OUT_RING  (chan, NV20TCL_STENCIL_OP_FAIL_KEEP);
 215         OUT_RING  (chan, NV20TCL_STENCIL_OP_ZFAIL_KEEP);
 216         OUT_RING  (chan, NV20TCL_STENCIL_OP_ZPASS_KEEP);
 217
 218         BEGIN_RING(chan, kelvin, NV20TCL_COLOR_LOGIC_OP_ENABLE, 2);
 219         OUT_RING  (chan, 0);
 220         OUT_RING  (chan, NV20TCL_COLOR_LOGIC_OP_OP_COPY);
 221         BEGIN_RING(chan, kelvin, 0x17cc, 1);
 222         OUT_RING  (chan, 0);
 223         if (context_chipset(ctx) >= 0x25) {
 224                 BEGIN_RING(chan, kelvin, 0x1d84, 1);
 225                 OUT_RING  (chan, 1);
 226         }
 227         BEGIN_RING(chan, kelvin, NV20TCL_LIGHTING_ENABLE, 1);
 228         OUT_RING  (chan, 0);
 229         BEGIN_RING(chan, kelvin, NV20TCL_LIGHT_MODEL, 1);
 230         OUT_RING  (chan, NV20TCL_LIGHT_MODEL_VIEWER_NONLOCAL);
 231         BEGIN_RING(chan, kelvin, NV20TCL_SEPARATE_SPECULAR_ENABLE, 1);
 232         OUT_RING  (chan, 0);
 233         BEGIN_RING(chan, kelvin, NV20TCL_LIGHT_MODEL_TWO_SIDE_ENABLE, 1);
 234         OUT_RING  (chan, 0);
 235         BEGIN_RING(chan, kelvin, NV20TCL_ENABLED_LIGHTS, 1);
 236         OUT_RING  (chan, 0);
 237         BEGIN_RING(chan, kelvin, NV20TCL_NORMALIZE_ENABLE, 1);
 238         OUT_RING  (chan, 0);
 239         BEGIN_RING(chan, kelvin, NV20TCL_POLYGON_STIPPLE_PATTERN(0),
 240                    NV20TCL_POLYGON_STIPPLE_PATTERN__SIZE);
 241         for (i = 0; i < NV20TCL_POLYGON_STIPPLE_PATTERN__SIZE; i++) {
 242                 OUT_RING(chan, 0xffffffff);
 243         }
 244
 245         BEGIN_RING(chan, kelvin, NV20TCL_POLYGON_OFFSET_POINT_ENABLE, 3);
 246         OUT_RING  (chan, 0);
 247         OUT_RING  (chan, 0);
 248         OUT_RING  (chan, 0);
 249         BEGIN_RING(chan, kelvin, NV20TCL_DEPTH_FUNC, 1);
 250         OUT_RING  (chan, NV20TCL_DEPTH_FUNC_LESS);
 251         BEGIN_RING(chan, kelvin, NV20TCL_DEPTH_WRITE_ENABLE, 1);
 252         OUT_RING  (chan, 0);
 253         BEGIN_RING(chan, kelvin, NV20TCL_DEPTH_TEST_ENABLE, 1);
 254         OUT_RING  (chan, 0);
 255         BEGIN_RING(chan, kelvin, NV20TCL_POLYGON_OFFSET_FACTOR, 2);
 256         OUT_RINGf (chan, 0.0);
 257         OUT_RINGf (chan, 0.0);
 258         BEGIN_RING(chan, kelvin, NV20TCL_DEPTH_UNK17D8, 1);
 259         OUT_RING  (chan, 1);
 260         if (context_chipset(ctx) < 0x25) {
 261                 BEGIN_RING(chan, kelvin, 0x1d84, 1);
 262                 OUT_RING  (chan, 3);
 263         }
 264         BEGIN_RING(chan, kelvin, NV20TCL_POINT_SIZE, 1);
 265         if (context_chipset(ctx) >= 0x25)
 266                 OUT_RINGf (chan, 1.0);
 267         else
 268                 OUT_RING  (chan, 8);
 269
 270         if (context_chipset(ctx) >= 0x25) {
 271                 BEGIN_RING(chan, kelvin, NV20TCL_POINT_PARAMETERS_ENABLE, 1);
 272                 OUT_RING  (chan, 0);
 273                 BEGIN_RING(chan, kelvin, 0x0a1c, 1);
 274                 OUT_RING  (chan, 0x800);
 275         } else {
 276                 BEGIN_RING(chan, kelvin, NV20TCL_POINT_PARAMETERS_ENABLE, 2);
 277                 OUT_RING  (chan, 0);
 278                 OUT_RING  (chan, 0);
 279         }
 280
 281         BEGIN_RING(chan, kelvin, NV20TCL_LINE_WIDTH, 1);
 282         OUT_RING  (chan, 8);
 283         BEGIN_RING(chan, kelvin, NV20TCL_LINE_SMOOTH_ENABLE, 1);
 284         OUT_RING  (chan, 0);
 285         BEGIN_RING(chan, kelvin, NV20TCL_POLYGON_MODE_FRONT, 2);
 286         OUT_RING  (chan, NV20TCL_POLYGON_MODE_FRONT_FILL);
 287         OUT_RING  (chan, NV20TCL_POLYGON_MODE_BACK_FILL);
 288         BEGIN_RING(chan, kelvin, NV20TCL_CULL_FACE, 2);
 289         OUT_RING  (chan, NV20TCL_CULL_FACE_BACK);
 290         OUT_RING  (chan, NV20TCL_FRONT_FACE_CCW);
 291         BEGIN_RING(chan, kelvin, NV20TCL_POLYGON_SMOOTH_ENABLE, 1);
 292         OUT_RING  (chan, 0);
 293         BEGIN_RING(chan, kelvin, NV20TCL_CULL_FACE_ENABLE, 1);
 294         OUT_RING  (chan, 0);
 295         BEGIN_RING(chan, kelvin, NV20TCL_SHADE_MODEL, 1);
 296         OUT_RING  (chan, NV20TCL_SHADE_MODEL_SMOOTH);
 297         BEGIN_RING(chan, kelvin, NV20TCL_POLYGON_STIPPLE_ENABLE, 1);
 298         OUT_RING  (chan, 0);
 299
 300         BEGIN_RING(chan, kelvin, NV20TCL_TX_GEN_MODE_S(0),
 301                    4 * NV20TCL_TX_GEN_MODE_S__SIZE);
 302         for (i=0; i < 4 * NV20TCL_TX_GEN_MODE_S__SIZE; i++)
 303                 OUT_RING(chan, 0);
 304
 305         BEGIN_RING(chan, kelvin, NV20TCL_FOG_EQUATION_CONSTANT, 3);
 306         OUT_RINGf (chan, 1.5);
 307         OUT_RINGf (chan, -0.090168);
 308         OUT_RINGf (chan, 0.0);
 309         BEGIN_RING(chan, kelvin, NV20TCL_FOG_MODE, 2);
 310         OUT_RING  (chan, NV20TCL_FOG_MODE_EXP_SIGNED);
 311         OUT_RING  (chan, NV20TCL_FOG_COORD_FOG);
 312         BEGIN_RING(chan, kelvin, NV20TCL_FOG_ENABLE, 2);
 313         OUT_RING  (chan, 0);
 314         OUT_RING  (chan, 0);
 315
 316         BEGIN_RING(chan, kelvin, NV20TCL_ENGINE, 1);
 317         OUT_RING  (chan, NV20TCL_ENGINE_FIXED);
 318
 319         for (i = 0; i < NV20TCL_TX_MATRIX_ENABLE__SIZE; i++) {
 320                 BEGIN_RING(chan, kelvin, NV20TCL_TX_MATRIX_ENABLE(i), 1);
 321                 OUT_RING  (chan, 0);
 322         }
 323
 324         BEGIN_RING(chan, kelvin, NV20TCL_VTX_ATTR_4F_X(1), 4 * 15);
 325         OUT_RINGf(chan, 1.0);
 326         OUT_RINGf(chan, 0.0);
 327         OUT_RINGf(chan, 0.0);
 328         OUT_RINGf(chan, 1.0);
 329         OUT_RINGf(chan, 0.0);
 330         OUT_RINGf(chan, 0.0);
 331         OUT_RINGf(chan, 1.0);
 332         OUT_RINGf(chan, 1.0);
 333         OUT_RINGf(chan, 1.0);
 334         OUT_RINGf(chan, 1.0);
 335         OUT_RINGf(chan, 1.0);
 336         OUT_RINGf(chan, 1.0);
 337         for (i = 0; i < 12; i++) {
 338                 OUT_RINGf(chan, 0.0);
 339                 OUT_RINGf(chan, 0.0);
 340                 OUT_RINGf(chan, 0.0);
 341                 OUT_RINGf(chan, 1.0);
 342         }
 343
 344         BEGIN_RING(chan, kelvin, NV20TCL_EDGEFLAG_ENABLE, 1);
 345         OUT_RING  (chan, 1);
 346         BEGIN_RING(chan, kelvin, NV20TCL_COLOR_MASK, 1);
 347         OUT_RING (chan, 0x00010101);
 348         BEGIN_RING(chan, kelvin, NV20TCL_CLEAR_VALUE, 1);
 349         OUT_RING (chan, 0);
 350
 351         BEGIN_RING(chan, kelvin, NV20TCL_DEPTH_RANGE_NEAR, 2);
 352         OUT_RINGf (chan, 0.0);
 353         OUT_RINGf (chan, 16777216.0);
 354
 355         BEGIN_RING(chan, kelvin, NV20TCL_VIEWPORT_TRANSLATE_X, 4);
 356         OUT_RINGf (chan, 0.0);
 357         OUT_RINGf (chan, 0.0);
 358         OUT_RINGf (chan, 0.0);
 359         OUT_RINGf (chan, 16777215.0);
 360
 361         BEGIN_RING(chan, kelvin, NV20TCL_VIEWPORT_SCALE_X, 4);
 362         OUT_RINGf (chan, 0.0);
 363         OUT_RINGf (chan, 0.0);
 364         OUT_RINGf (chan, 16777215.0 * 0.5);
 365         OUT_RINGf (chan, 65535.0);
 366
 367         FIRE_RING(chan);
 368 }
 369
 370 static void
 371 nv20_context_destroy(GLcontext *ctx)
 372 {
 373         struct nouveau_context *nctx = to_nouveau_context(ctx);
 374
 375         nv04_surface_takedown(ctx);
 376         nv20_render_destroy(ctx);
 377
 378         nouveau_grobj_free(&nctx->hw.eng3d);
 379
 380         nouveau_context_deinit(ctx);
 381         FREE(ctx);
 382 }
 383
 384 static GLcontext *
 385 nv20_context_create(struct nouveau_screen *screen, const GLvisual *visual,
 386                     GLcontext *share_ctx)
 387 {
 388         struct nouveau_context *nctx;
 389         GLcontext *ctx;
 390         unsigned kelvin_class;
 391         int ret;
 392
 393         nctx = CALLOC_STRUCT(nouveau_context);
 394         if (!nctx)
 395                 return NULL;
 396
 397         ctx = &nctx->base;
 398
 399         if (!nouveau_context_init(ctx, screen, visual, share_ctx))
 400                 goto fail;
 401
 402         driInitExtensions(ctx, nv20_extensions, GL_FALSE);
 403
 404         /* GL constants. */
 405         ctx->Const.MaxTextureCoordUnits = NV20_TEXTURE_UNITS;
 406         ctx->Const.MaxTextureImageUnits = NV20_TEXTURE_UNITS;
 407         ctx->Const.MaxTextureUnits = NV20_TEXTURE_UNITS;
 408         ctx->Const.MaxTextureMaxAnisotropy = 8;
 409         ctx->Const.MaxTextureLodBias = 15;
 410
 411         /* 2D engine. */
 412         ret = nv04_surface_init(ctx);
 413         if (!ret)
 414                 goto fail;
 415
 416         /* 3D engine. */
 417         if (context_chipset(ctx) >= 0x25)
 418                 kelvin_class = NV25TCL;
 419         else
 420                 kelvin_class = NV20TCL;
 421
 422         ret = nouveau_grobj_alloc(context_chan(ctx), 0xbeef0001, kelvin_class,
 423                                   &nctx->hw.eng3d);
 424         if (ret)
 425                 goto fail;
 426
 427         nv20_hwctx_init(ctx);
 428         nv20_render_init(ctx);
 429
 430         return ctx;
 431
 432 fail:
 433         nv20_context_destroy(ctx);
 434         return NULL;
 435 }
 436
 437 const struct nouveau_driver nv20_driver = {
 438         .context_create = nv20_context_create,
 439         .context_destroy = nv20_context_destroy,
 440         .surface_copy = nv04_surface_copy,
 441         .surface_fill = nv04_surface_fill,
 442         .emit = (nouveau_state_func[]) {
 443                 nv10_emit_alpha_func,
 444                 nv10_emit_blend_color,
 445                 nv10_emit_blend_equation,
 446                 nv10_emit_blend_func,
 447                 nv20_emit_clip_plane,
 448                 nv20_emit_clip_plane,
 449                 nv20_emit_clip_plane,
 450                 nv20_emit_clip_plane,
 451                 nv20_emit_clip_plane,
 452                 nv20_emit_clip_plane,
 453                 nv10_emit_color_mask,
 454                 nv20_emit_color_material,
 455                 nv10_emit_cull_face,
 456                 nv10_emit_front_face,
 457                 nv10_emit_depth,
 458                 nv10_emit_dither,
 459                 nv20_emit_frag,
 460                 nv20_emit_framebuffer,
 461                 nv20_emit_fog,
 462                 nv10_emit_light_enable,
 463                 nv20_emit_light_model,
 464                 nv20_emit_light_source,
 465                 nv20_emit_light_source,
 466                 nv20_emit_light_source,
 467                 nv20_emit_light_source,
 468                 nv20_emit_light_source,
 469                 nv20_emit_light_source,
 470                 nv20_emit_light_source,
 471                 nv20_emit_light_source,
 472                 nv10_emit_line_stipple,
 473                 nv10_emit_line_mode,
 474                 nv20_emit_logic_opcode,
 475                 nv20_emit_material_ambient,
 476                 nv20_emit_material_ambient,
 477                 nv20_emit_material_diffuse,
 478                 nv20_emit_material_diffuse,
 479                 nv20_emit_material_specular,
 480                 nv20_emit_material_specular,
 481                 nv20_emit_material_shininess,
 482                 nv20_emit_material_shininess,
 483                 nv20_emit_modelview,
 484                 nv20_emit_point_mode,
 485                 nv10_emit_point_parameter,
 486                 nv10_emit_polygon_mode,
 487                 nv10_emit_polygon_offset,
 488                 nv10_emit_polygon_stipple,
 489                 nv20_emit_projection,
 490                 nv10_emit_render_mode,
 491                 nv10_emit_scissor,
 492                 nv10_emit_shade_model,
 493                 nv10_emit_stencil_func,
 494                 nv10_emit_stencil_mask,
 495                 nv10_emit_stencil_op,
 496                 nv20_emit_tex_env,
 497                 nv20_emit_tex_env,
 498                 nv20_emit_tex_env,
 499                 nv20_emit_tex_env,
 500                 nv20_emit_tex_gen,
 501                 nv20_emit_tex_gen,
 502                 nv20_emit_tex_gen,
 503                 nv20_emit_tex_gen,
 504                 nv20_emit_tex_mat,
 505                 nv20_emit_tex_mat,
 506                 nv20_emit_tex_mat,
 507                 nv20_emit_tex_mat,
 508                 nv20_emit_tex_obj,
 509                 nv20_emit_tex_obj,
 510                 nv20_emit_tex_obj,
 511                 nv20_emit_tex_obj,
 512                 nv20_emit_viewport,
 513                 nv20_emit_tex_shader
 514         },
 515         .num_emit = NUM_NV20_STATE,
 516 };