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 <stdbool.h>
  28 #include "nouveau_driver.h"
  29 #include "nouveau_context.h"
  30 #include "nouveau_fbo.h"
  31 #include "nouveau_util.h"
  32 #include "nv_object.xml.h"
  33 #include "nv20_3d.xml.h"
  34 #include "nv04_driver.h"
  35 #include "nv10_driver.h"
  36 #include "nv20_driver.h"
  37
  38 static void
  39 nv20_clear(struct gl_context *ctx, GLbitfield buffers)
  40 {
  41         struct nouveau_channel *chan = context_chan(ctx);
  42         struct nouveau_grobj *kelvin = context_eng3d(ctx);
  43         struct gl_framebuffer *fb = ctx->DrawBuffer;
  44         uint32_t clear = 0;
  45
  46         nouveau_validate_framebuffer(ctx);
  47
  48         if (buffers & BUFFER_BITS_COLOR) {
  49                 struct nouveau_surface *s = &to_nouveau_renderbuffer(
  50                         fb->_ColorDrawBuffers[0])->surface;
  51
  52                 if (ctx->Color.ColorMask[0][RCOMP])
  53                         clear |= NV20_3D_CLEAR_BUFFERS_COLOR_R;
  54                 if (ctx->Color.ColorMask[0][GCOMP])
  55                         clear |= NV20_3D_CLEAR_BUFFERS_COLOR_G;
  56                 if (ctx->Color.ColorMask[0][BCOMP])
  57                         clear |= NV20_3D_CLEAR_BUFFERS_COLOR_B;
  58                 if (ctx->Color.ColorMask[0][ACOMP])
  59                         clear |= NV20_3D_CLEAR_BUFFERS_COLOR_A;
  60
  61                 BEGIN_RING(chan, kelvin, NV20_3D_CLEAR_VALUE, 1);
  62                 OUT_RING(chan, pack_rgba_clamp_f(s->format, ctx->Color.ClearColor.f));
  63
  64                 buffers &= ~BUFFER_BITS_COLOR;
  65         }
  66
  67         if (buffers & (BUFFER_BIT_DEPTH | BUFFER_BIT_STENCIL)) {
  68                 struct nouveau_surface *s = &to_nouveau_renderbuffer(
  69                         fb->Attachment[BUFFER_DEPTH].Renderbuffer)->surface;
  70
  71                 if (buffers & BUFFER_BIT_DEPTH && ctx->Depth.Mask)
  72                         clear |= NV20_3D_CLEAR_BUFFERS_DEPTH;
  73                 if (buffers & BUFFER_BIT_STENCIL && ctx->Stencil.WriteMask[0])
  74                         clear |= NV20_3D_CLEAR_BUFFERS_STENCIL;
  75
  76                 BEGIN_RING(chan, kelvin, NV20_3D_CLEAR_DEPTH_VALUE, 1);
  77                 OUT_RING(chan, pack_zs_f(s->format, ctx->Depth.Clear,
  78                                          ctx->Stencil.Clear));
  79
  80                 buffers &= ~(BUFFER_BIT_DEPTH | BUFFER_BIT_STENCIL);
  81         }
  82
  83         BEGIN_RING(chan, kelvin, NV20_3D_CLEAR_BUFFERS, 1);
  84         OUT_RING(chan, clear);
  85
  86         nouveau_clear(ctx, buffers);
  87 }
  88
  89 static void
  90 nv20_hwctx_init(struct gl_context *ctx)
  91 {
  92         struct nouveau_channel *chan = context_chan(ctx);
  93         struct nouveau_grobj *kelvin = context_eng3d(ctx);
  94         struct nouveau_hw_state *hw = &to_nouveau_context(ctx)->hw;
  95         int i;
  96
  97         BEGIN_RING(chan, kelvin, NV20_3D_DMA_NOTIFY, 1);
  98         OUT_RING  (chan, hw->ntfy->handle);
  99         BEGIN_RING(chan, kelvin, NV20_3D_DMA_TEXTURE0, 2);
 100         OUT_RING  (chan, chan->vram->handle);
 101         OUT_RING  (chan, chan->gart->handle);
 102         BEGIN_RING(chan, kelvin, NV20_3D_DMA_COLOR, 2);
 103         OUT_RING  (chan, chan->vram->handle);
 104         OUT_RING  (chan, chan->vram->handle);
 105         BEGIN_RING(chan, kelvin, NV20_3D_DMA_VTXBUF0, 2);
 106         OUT_RING(chan, chan->vram->handle);
 107         OUT_RING(chan, chan->gart->handle);
 108
 109         BEGIN_RING(chan, kelvin, NV20_3D_DMA_QUERY, 1);
 110         OUT_RING  (chan, 0);
 111
 112         BEGIN_RING(chan, kelvin, NV20_3D_RT_HORIZ, 2);
 113         OUT_RING  (chan, 0);
 114         OUT_RING  (chan, 0);
 115
 116         BEGIN_RING(chan, kelvin, NV20_3D_VIEWPORT_CLIP_HORIZ(0), 1);
 117         OUT_RING  (chan, 0xfff << 16 | 0x0);
 118         BEGIN_RING(chan, kelvin, NV20_3D_VIEWPORT_CLIP_VERT(0), 1);
 119         OUT_RING  (chan, 0xfff << 16 | 0x0);
 120
 121         for (i = 1; i < NV20_3D_VIEWPORT_CLIP_HORIZ__LEN; i++) {
 122                 BEGIN_RING(chan, kelvin, NV20_3D_VIEWPORT_CLIP_HORIZ(i), 1);
 123                 OUT_RING  (chan, 0);
 124                 BEGIN_RING(chan, kelvin, NV20_3D_VIEWPORT_CLIP_VERT(i), 1);
 125                 OUT_RING  (chan, 0);
 126         }
 127
 128         BEGIN_RING(chan, kelvin, NV20_3D_VIEWPORT_CLIP_MODE, 1);
 129         OUT_RING  (chan, 0);
 130
 131         BEGIN_RING(chan, kelvin, 0x17e0, 3);
 132         OUT_RINGf (chan, 0.0);
 133         OUT_RINGf (chan, 0.0);
 134         OUT_RINGf (chan, 1.0);
 135
 136         if (context_chipset(ctx) >= 0x25) {
 137                 BEGIN_RING(chan, kelvin, NV20_3D_TEX_RCOMP, 1);
 138                 OUT_RING  (chan, NV20_3D_TEX_RCOMP_LEQUAL | 0xdb0);
 139         } else {
 140                 BEGIN_RING(chan, kelvin, 0x1e68, 1);
 141                 OUT_RING  (chan, 0x4b800000); /* 16777216.000000 */
 142                 BEGIN_RING(chan, kelvin, NV20_3D_TEX_RCOMP, 1);
 143                 OUT_RING  (chan, NV20_3D_TEX_RCOMP_LEQUAL);
 144         }
 145
 146         BEGIN_RING(chan, kelvin, 0x290, 1);
 147         OUT_RING  (chan, 0x10 << 16 | 1);
 148         BEGIN_RING(chan, kelvin, 0x9fc, 1);
 149         OUT_RING  (chan, 0);
 150         BEGIN_RING(chan, kelvin, 0x1d80, 1);
 151         OUT_RING  (chan, 1);
 152         BEGIN_RING(chan, kelvin, 0x9f8, 1);
 153         OUT_RING  (chan, 4);
 154         BEGIN_RING(chan, kelvin, 0x17ec, 3);
 155         OUT_RINGf (chan, 0.0);
 156         OUT_RINGf (chan, 1.0);
 157         OUT_RINGf (chan, 0.0);
 158
 159         if (context_chipset(ctx) >= 0x25) {
 160                 BEGIN_RING(chan, kelvin, 0x1d88, 1);
 161                 OUT_RING  (chan, 3);
 162
 163                 BEGIN_RING(chan, kelvin, NV25_3D_DMA_HIERZ, 1);
 164                 OUT_RING  (chan, chan->vram->handle);
 165                 BEGIN_RING(chan, kelvin, NV25_3D_UNK01AC, 1);
 166                 OUT_RING  (chan, chan->vram->handle);
 167         }
 168
 169         BEGIN_RING(chan, kelvin, NV20_3D_DMA_FENCE, 1);
 170         OUT_RING  (chan, 0);
 171
 172         BEGIN_RING(chan, kelvin, 0x1e98, 1);
 173         OUT_RING  (chan, 0);
 174
 175         BEGIN_RING(chan, kelvin, NV01_GRAPH_NOTIFY, 1);
 176         OUT_RING  (chan, 0);
 177
 178         BEGIN_RING(chan, kelvin, 0x120, 3);
 179         OUT_RING  (chan, 0);
 180         OUT_RING  (chan, 1);
 181         OUT_RING  (chan, 2);
 182
 183         if (context_chipset(ctx) >= 0x25) {
 184                 BEGIN_RING(chan, kelvin, 0x1da4, 1);
 185                 OUT_RING  (chan, 0);
 186         }
 187
 188         BEGIN_RING(chan, kelvin, NV20_3D_RT_HORIZ, 2);
 189         OUT_RING  (chan, 0 << 16 | 0);
 190         OUT_RING  (chan, 0 << 16 | 0);
 191
 192         BEGIN_RING(chan, kelvin, NV20_3D_ALPHA_FUNC_ENABLE, 1);
 193         OUT_RING  (chan, 0);
 194         BEGIN_RING(chan, kelvin, NV20_3D_ALPHA_FUNC_FUNC, 2);
 195         OUT_RING  (chan, NV20_3D_ALPHA_FUNC_FUNC_ALWAYS);
 196         OUT_RING  (chan, 0);
 197
 198         for (i = 0; i < NV20_3D_TEX__LEN; i++) {
 199                 BEGIN_RING(chan, kelvin, NV20_3D_TEX_ENABLE(i), 1);
 200                 OUT_RING  (chan, 0);
 201         }
 202
 203         BEGIN_RING(chan, kelvin, NV20_3D_TEX_SHADER_OP, 1);
 204         OUT_RING  (chan, 0);
 205         BEGIN_RING(chan, kelvin, NV20_3D_TEX_SHADER_CULL_MODE, 1);
 206         OUT_RING  (chan, 0);
 207
 208         BEGIN_RING(chan, kelvin, NV20_3D_RC_IN_ALPHA(0), 4);
 209         OUT_RING  (chan, 0x30d410d0);
 210         OUT_RING  (chan, 0);
 211         OUT_RING  (chan, 0);
 212         OUT_RING  (chan, 0);
 213         BEGIN_RING(chan, kelvin, NV20_3D_RC_OUT_RGB(0), 4);
 214         OUT_RING  (chan, 0x00000c00);
 215         OUT_RING  (chan, 0);
 216         OUT_RING  (chan, 0);
 217         OUT_RING  (chan, 0);
 218         BEGIN_RING(chan, kelvin, NV20_3D_RC_ENABLE, 1);
 219         OUT_RING  (chan, 0x00011101);
 220         BEGIN_RING(chan, kelvin, NV20_3D_RC_FINAL0, 2);
 221         OUT_RING  (chan, 0x130e0300);
 222         OUT_RING  (chan, 0x0c091c80);
 223         BEGIN_RING(chan, kelvin, NV20_3D_RC_OUT_ALPHA(0), 4);
 224         OUT_RING  (chan, 0x00000c00);
 225         OUT_RING  (chan, 0);
 226         OUT_RING  (chan, 0);
 227         OUT_RING  (chan, 0);
 228         BEGIN_RING(chan, kelvin, NV20_3D_RC_IN_RGB(0), 4);
 229         OUT_RING  (chan, 0x20c400c0);
 230         OUT_RING  (chan, 0);
 231         OUT_RING  (chan, 0);
 232         OUT_RING  (chan, 0);
 233         BEGIN_RING(chan, kelvin, NV20_3D_RC_COLOR0, 2);
 234         OUT_RING  (chan, 0);
 235         OUT_RING  (chan, 0);
 236         BEGIN_RING(chan, kelvin, NV20_3D_RC_CONSTANT_COLOR0(0), 4);
 237         OUT_RING  (chan, 0x035125a0);
 238         OUT_RING  (chan, 0);
 239         OUT_RING  (chan, 0x40002000);
 240         OUT_RING  (chan, 0);
 241
 242         BEGIN_RING(chan, kelvin, NV20_3D_MULTISAMPLE_CONTROL, 1);
 243         OUT_RING  (chan, 0xffff0000);
 244         BEGIN_RING(chan, kelvin, NV20_3D_BLEND_FUNC_ENABLE, 1);
 245         OUT_RING  (chan, 0);
 246         BEGIN_RING(chan, kelvin, NV20_3D_DITHER_ENABLE, 1);
 247         OUT_RING  (chan, 0);
 248         BEGIN_RING(chan, kelvin, NV20_3D_STENCIL_ENABLE, 1);
 249         OUT_RING  (chan, 0);
 250         BEGIN_RING(chan, kelvin, NV20_3D_BLEND_FUNC_SRC, 4);
 251         OUT_RING  (chan, NV20_3D_BLEND_FUNC_SRC_ONE);
 252         OUT_RING  (chan, NV20_3D_BLEND_FUNC_DST_ZERO);
 253         OUT_RING  (chan, 0);
 254         OUT_RING  (chan, NV20_3D_BLEND_EQUATION_FUNC_ADD);
 255         BEGIN_RING(chan, kelvin, NV20_3D_STENCIL_MASK, 7);
 256         OUT_RING  (chan, 0xff);
 257         OUT_RING  (chan, NV20_3D_STENCIL_FUNC_FUNC_ALWAYS);
 258         OUT_RING  (chan, 0);
 259         OUT_RING  (chan, 0xff);
 260         OUT_RING  (chan, NV20_3D_STENCIL_OP_FAIL_KEEP);
 261         OUT_RING  (chan, NV20_3D_STENCIL_OP_ZFAIL_KEEP);
 262         OUT_RING  (chan, NV20_3D_STENCIL_OP_ZPASS_KEEP);
 263
 264         BEGIN_RING(chan, kelvin, NV20_3D_COLOR_LOGIC_OP_ENABLE, 2);
 265         OUT_RING  (chan, 0);
 266         OUT_RING  (chan, NV20_3D_COLOR_LOGIC_OP_OP_COPY);
 267         BEGIN_RING(chan, kelvin, 0x17cc, 1);
 268         OUT_RING  (chan, 0);
 269         if (context_chipset(ctx) >= 0x25) {
 270                 BEGIN_RING(chan, kelvin, 0x1d84, 1);
 271                 OUT_RING  (chan, 1);
 272         }
 273         BEGIN_RING(chan, kelvin, NV20_3D_LIGHTING_ENABLE, 1);
 274         OUT_RING  (chan, 0);
 275         BEGIN_RING(chan, kelvin, NV20_3D_LIGHT_MODEL, 1);
 276         OUT_RING  (chan, NV20_3D_LIGHT_MODEL_VIEWER_NONLOCAL);
 277         BEGIN_RING(chan, kelvin, NV20_3D_SEPARATE_SPECULAR_ENABLE, 1);
 278         OUT_RING  (chan, 0);
 279         BEGIN_RING(chan, kelvin, NV20_3D_LIGHT_MODEL_TWO_SIDE_ENABLE, 1);
 280         OUT_RING  (chan, 0);
 281         BEGIN_RING(chan, kelvin, NV20_3D_ENABLED_LIGHTS, 1);
 282         OUT_RING  (chan, 0);
 283         BEGIN_RING(chan, kelvin, NV20_3D_NORMALIZE_ENABLE, 1);
 284         OUT_RING  (chan, 0);
 285         BEGIN_RING(chan, kelvin, NV20_3D_POLYGON_STIPPLE_PATTERN(0),
 286                    NV20_3D_POLYGON_STIPPLE_PATTERN__LEN);
 287         for (i = 0; i < NV20_3D_POLYGON_STIPPLE_PATTERN__LEN; i++) {
 288                 OUT_RING(chan, 0xffffffff);
 289         }
 290
 291         BEGIN_RING(chan, kelvin, NV20_3D_POLYGON_OFFSET_POINT_ENABLE, 3);
 292         OUT_RING  (chan, 0);
 293         OUT_RING  (chan, 0);
 294         OUT_RING  (chan, 0);
 295         BEGIN_RING(chan, kelvin, NV20_3D_DEPTH_FUNC, 1);
 296         OUT_RING  (chan, NV20_3D_DEPTH_FUNC_LESS);
 297         BEGIN_RING(chan, kelvin, NV20_3D_DEPTH_WRITE_ENABLE, 1);
 298         OUT_RING  (chan, 0);
 299         BEGIN_RING(chan, kelvin, NV20_3D_DEPTH_TEST_ENABLE, 1);
 300         OUT_RING  (chan, 0);
 301         BEGIN_RING(chan, kelvin, NV20_3D_POLYGON_OFFSET_FACTOR, 2);
 302         OUT_RINGf (chan, 0.0);
 303         OUT_RINGf (chan, 0.0);
 304         BEGIN_RING(chan, kelvin, NV20_3D_DEPTH_CLAMP, 1);
 305         OUT_RING  (chan, 1);
 306         if (context_chipset(ctx) < 0x25) {
 307                 BEGIN_RING(chan, kelvin, 0x1d84, 1);
 308                 OUT_RING  (chan, 3);
 309         }
 310         BEGIN_RING(chan, kelvin, NV20_3D_POINT_SIZE, 1);
 311         if (context_chipset(ctx) >= 0x25)
 312                 OUT_RINGf (chan, 1.0);
 313         else
 314                 OUT_RING  (chan, 8);
 315
 316         if (context_chipset(ctx) >= 0x25) {
 317                 BEGIN_RING(chan, kelvin, NV20_3D_POINT_PARAMETERS_ENABLE, 1);
 318                 OUT_RING  (chan, 0);
 319                 BEGIN_RING(chan, kelvin, 0x0a1c, 1);
 320                 OUT_RING  (chan, 0x800);
 321         } else {
 322                 BEGIN_RING(chan, kelvin, NV20_3D_POINT_PARAMETERS_ENABLE, 2);
 323                 OUT_RING  (chan, 0);
 324                 OUT_RING  (chan, 0);
 325         }
 326
 327         BEGIN_RING(chan, kelvin, NV20_3D_LINE_WIDTH, 1);
 328         OUT_RING  (chan, 8);
 329         BEGIN_RING(chan, kelvin, NV20_3D_LINE_SMOOTH_ENABLE, 1);
 330         OUT_RING  (chan, 0);
 331         BEGIN_RING(chan, kelvin, NV20_3D_POLYGON_MODE_FRONT, 2);
 332         OUT_RING  (chan, NV20_3D_POLYGON_MODE_FRONT_FILL);
 333         OUT_RING  (chan, NV20_3D_POLYGON_MODE_BACK_FILL);
 334         BEGIN_RING(chan, kelvin, NV20_3D_CULL_FACE, 2);
 335         OUT_RING  (chan, NV20_3D_CULL_FACE_BACK);
 336         OUT_RING  (chan, NV20_3D_FRONT_FACE_CCW);
 337         BEGIN_RING(chan, kelvin, NV20_3D_POLYGON_SMOOTH_ENABLE, 1);
 338         OUT_RING  (chan, 0);
 339         BEGIN_RING(chan, kelvin, NV20_3D_CULL_FACE_ENABLE, 1);
 340         OUT_RING  (chan, 0);
 341         BEGIN_RING(chan, kelvin, NV20_3D_SHADE_MODEL, 1);
 342         OUT_RING  (chan, NV20_3D_SHADE_MODEL_SMOOTH);
 343         BEGIN_RING(chan, kelvin, NV20_3D_POLYGON_STIPPLE_ENABLE, 1);
 344         OUT_RING  (chan, 0);
 345
 346         BEGIN_RING(chan, kelvin, NV20_3D_TEX_GEN_MODE(0,0),
 347                    4 * NV20_3D_TEX_GEN_MODE__ESIZE);
 348         for (i=0; i < 4 * NV20_3D_TEX_GEN_MODE__LEN; i++)
 349                 OUT_RING(chan, 0);
 350
 351         BEGIN_RING(chan, kelvin, NV20_3D_FOG_COEFF(0), 3);
 352         OUT_RINGf (chan, 1.5);
 353         OUT_RINGf (chan, -0.090168);
 354         OUT_RINGf (chan, 0.0);
 355         BEGIN_RING(chan, kelvin, NV20_3D_FOG_MODE, 2);
 356         OUT_RING  (chan, NV20_3D_FOG_MODE_EXP_SIGNED);
 357         OUT_RING  (chan, NV20_3D_FOG_COORD_FOG);
 358         BEGIN_RING(chan, kelvin, NV20_3D_FOG_ENABLE, 2);
 359         OUT_RING  (chan, 0);
 360         OUT_RING  (chan, 0);
 361
 362         BEGIN_RING(chan, kelvin, NV20_3D_ENGINE, 1);
 363         OUT_RING  (chan, NV20_3D_ENGINE_FIXED);
 364
 365         for (i = 0; i < NV20_3D_TEX_MATRIX_ENABLE__LEN; i++) {
 366                 BEGIN_RING(chan, kelvin, NV20_3D_TEX_MATRIX_ENABLE(i), 1);
 367                 OUT_RING  (chan, 0);
 368         }
 369
 370         BEGIN_RING(chan, kelvin, NV20_3D_VERTEX_ATTR_4F_X(1), 4 * 15);
 371         OUT_RINGf(chan, 1.0);
 372         OUT_RINGf(chan, 0.0);
 373         OUT_RINGf(chan, 0.0);
 374         OUT_RINGf(chan, 1.0);
 375         OUT_RINGf(chan, 0.0);
 376         OUT_RINGf(chan, 0.0);
 377         OUT_RINGf(chan, 1.0);
 378         OUT_RINGf(chan, 1.0);
 379         OUT_RINGf(chan, 1.0);
 380         OUT_RINGf(chan, 1.0);
 381         OUT_RINGf(chan, 1.0);
 382         OUT_RINGf(chan, 1.0);
 383         for (i = 0; i < 12; i++) {
 384                 OUT_RINGf(chan, 0.0);
 385                 OUT_RINGf(chan, 0.0);
 386                 OUT_RINGf(chan, 0.0);
 387                 OUT_RINGf(chan, 1.0);
 388         }
 389
 390         BEGIN_RING(chan, kelvin, NV20_3D_EDGEFLAG_ENABLE, 1);
 391         OUT_RING  (chan, 1);
 392         BEGIN_RING(chan, kelvin, NV20_3D_COLOR_MASK, 1);
 393         OUT_RING (chan, 0x00010101);
 394         BEGIN_RING(chan, kelvin, NV20_3D_CLEAR_VALUE, 1);
 395         OUT_RING (chan, 0);
 396
 397         BEGIN_RING(chan, kelvin, NV20_3D_DEPTH_RANGE_NEAR, 2);
 398         OUT_RINGf (chan, 0.0);
 399         OUT_RINGf (chan, 16777216.0);
 400
 401         BEGIN_RING(chan, kelvin, NV20_3D_VIEWPORT_TRANSLATE_X, 4);
 402         OUT_RINGf (chan, 0.0);
 403         OUT_RINGf (chan, 0.0);
 404         OUT_RINGf (chan, 0.0);
 405         OUT_RINGf (chan, 16777215.0);
 406
 407         BEGIN_RING(chan, kelvin, NV20_3D_VIEWPORT_SCALE_X, 4);
 408         OUT_RINGf (chan, 0.0);
 409         OUT_RINGf (chan, 0.0);
 410         OUT_RINGf (chan, 16777215.0 * 0.5);
 411         OUT_RINGf (chan, 65535.0);
 412
 413         FIRE_RING(chan);
 414 }
 415
 416 static void
 417 nv20_context_destroy(struct gl_context *ctx)
 418 {
 419         struct nouveau_context *nctx = to_nouveau_context(ctx);
 420
 421         nv04_surface_takedown(ctx);
 422         nv20_swtnl_destroy(ctx);
 423         nv20_vbo_destroy(ctx);
 424
 425         nouveau_grobj_free(&nctx->hw.eng3d);
 426
 427         nouveau_context_deinit(ctx);
 428         FREE(ctx);
 429 }
 430
 431 static struct gl_context *
 432 nv20_context_create(struct nouveau_screen *screen, const struct gl_config *visual,
 433                     struct gl_context *share_ctx)
 434 {
 435         struct nouveau_context *nctx;
 436         struct gl_context *ctx;
 437         unsigned kelvin_class;
 438         int ret;
 439
 440         nctx = CALLOC_STRUCT(nouveau_context);
 441         if (!nctx)
 442                 return NULL;
 443
 444         ctx = &nctx->base;
 445
 446         if (!nouveau_context_init(ctx, screen, visual, share_ctx))
 447                 goto fail;
 448
 449         ctx->Extensions.ARB_texture_env_crossbar = true;
 450         ctx->Extensions.ARB_texture_env_combine = true;
 451         ctx->Extensions.ARB_texture_env_dot3 = true;
 452         ctx->Extensions.NV_fog_distance = true;
 453         ctx->Extensions.NV_texture_rectangle = true;
 454
 455         /* GL constants. */
 456         ctx->Const.MaxTextureCoordUnits = NV20_TEXTURE_UNITS;
 457         ctx->Const.MaxTextureImageUnits = NV20_TEXTURE_UNITS;
 458         ctx->Const.MaxTextureUnits = NV20_TEXTURE_UNITS;
 459         ctx->Const.MaxTextureMaxAnisotropy = 8;
 460         ctx->Const.MaxTextureLodBias = 15;
 461         ctx->Driver.Clear = nv20_clear;
 462
 463         /* 2D engine. */
 464         ret = nv04_surface_init(ctx);
 465         if (!ret)
 466                 goto fail;
 467
 468         /* 3D engine. */
 469         if (context_chipset(ctx) >= 0x25)
 470                 kelvin_class = NV25_3D;
 471         else
 472                 kelvin_class = NV20_3D;
 473
 474         ret = nouveau_grobj_alloc(context_chan(ctx), 0xbeef0001, kelvin_class,
 475                                   &nctx->hw.eng3d);
 476         if (ret)
 477                 goto fail;
 478
 479         nv20_hwctx_init(ctx);
 480         nv20_vbo_init(ctx);
 481         nv20_swtnl_init(ctx);
 482
 483         return ctx;
 484
 485 fail:
 486         nv20_context_destroy(ctx);
 487         return NULL;
 488 }
 489
 490 const struct nouveau_driver nv20_driver = {
 491         .context_create = nv20_context_create,
 492         .context_destroy = nv20_context_destroy,
 493         .surface_copy = nv04_surface_copy,
 494         .surface_fill = nv04_surface_fill,
 495         .emit = (nouveau_state_func[]) {
 496                 nv10_emit_alpha_func,
 497                 nv10_emit_blend_color,
 498                 nv10_emit_blend_equation,
 499                 nv10_emit_blend_func,
 500                 nv20_emit_clip_plane,
 501                 nv20_emit_clip_plane,
 502                 nv20_emit_clip_plane,
 503                 nv20_emit_clip_plane,
 504                 nv20_emit_clip_plane,
 505                 nv20_emit_clip_plane,
 506                 nv10_emit_color_mask,
 507                 nv20_emit_color_material,
 508                 nv10_emit_cull_face,
 509                 nv10_emit_front_face,
 510                 nv10_emit_depth,
 511                 nv10_emit_dither,
 512                 nv20_emit_frag,
 513                 nv20_emit_framebuffer,
 514                 nv20_emit_fog,
 515                 nv10_emit_light_enable,
 516                 nv20_emit_light_model,
 517                 nv20_emit_light_source,
 518                 nv20_emit_light_source,
 519                 nv20_emit_light_source,
 520                 nv20_emit_light_source,
 521                 nv20_emit_light_source,
 522                 nv20_emit_light_source,
 523                 nv20_emit_light_source,
 524                 nv20_emit_light_source,
 525                 nv10_emit_line_stipple,
 526                 nv10_emit_line_mode,
 527                 nv20_emit_logic_opcode,
 528                 nv20_emit_material_ambient,
 529                 nv20_emit_material_ambient,
 530                 nv20_emit_material_diffuse,
 531                 nv20_emit_material_diffuse,
 532                 nv20_emit_material_specular,
 533                 nv20_emit_material_specular,
 534                 nv20_emit_material_shininess,
 535                 nv20_emit_material_shininess,
 536                 nv20_emit_modelview,
 537                 nv20_emit_point_mode,
 538                 nv10_emit_point_parameter,
 539                 nv10_emit_polygon_mode,
 540                 nv10_emit_polygon_offset,
 541                 nv10_emit_polygon_stipple,
 542                 nv20_emit_projection,
 543                 nv10_emit_render_mode,
 544                 nv10_emit_scissor,
 545                 nv10_emit_shade_model,
 546                 nv10_emit_stencil_func,
 547                 nv10_emit_stencil_mask,
 548                 nv10_emit_stencil_op,
 549                 nv20_emit_tex_env,
 550                 nv20_emit_tex_env,
 551                 nv20_emit_tex_env,
 552                 nv20_emit_tex_env,
 553                 nv20_emit_tex_gen,
 554                 nv20_emit_tex_gen,
 555                 nv20_emit_tex_gen,
 556                 nv20_emit_tex_gen,
 557                 nv20_emit_tex_mat,
 558                 nv20_emit_tex_mat,
 559                 nv20_emit_tex_mat,
 560                 nv20_emit_tex_mat,
 561                 nv20_emit_tex_obj,
 562                 nv20_emit_tex_obj,
 563                 nv20_emit_tex_obj,
 564                 nv20_emit_tex_obj,
 565                 nv20_emit_viewport,
 566                 nv20_emit_tex_shader
 567         },
 568         .num_emit = NUM_NV20_STATE,
 569 };