src/gallium/drivers/nv50/nv50_state.c

   1 /*
   2  * Copyright 2010 Christoph Bumiller
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  18  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
  19  * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  20  * SOFTWARE.
  21  */
  22
  23 #include "pipe/p_defines.h"
  24 #include "util/u_inlines.h"
  25 #include "util/u_transfer.h"
  26
  27 #include "tgsi/tgsi_parse.h"
  28
  29 #include "nv50_stateobj.h"
  30 #include "nv50_context.h"
  31
  32 #include "nv50_3d.xml.h"
  33 #include "nv50_texture.xml.h"
  34
  35 #include "nouveau/nouveau_gldefs.h"
  36
  37 /* Caveats:
  38  *  ! pipe_sampler_state.normalized_coords is ignored - rectangle textures will
  39  *     use non-normalized coordinates, everything else won't
  40  *    (The relevant bit is in the TIC entry and not the TSC entry.)
  41  *
  42  *  ! pipe_sampler_state.seamless_cube_map is ignored - seamless filtering is
  43  *     always activated on NVA0 +
  44  *    (Give me the global bit, otherwise it's not worth the CPU work.)
  45  *
  46  *  ! pipe_sampler_state.border_color is not swizzled according to the texture
  47  *     swizzle in pipe_sampler_view
  48  *    (This will be ugly with indirect independent texture/sampler access,
  49  *     we'd have to emulate the logic in the shader. GL doesn't have that,
  50  *     D3D doesn't have swizzle, if we knew what we were implementing we'd be
  51  *     good.)
  52  *
  53  *  ! pipe_rasterizer_state.line_last_pixel is ignored - it is never drawn
  54  *
  55  *  ! pipe_rasterizer_state.flatshade_first also applies to QUADS
  56  *    (There's a GL query for that, forcing an exception is just ridiculous.)
  57  *
  58  *  ! pipe_rasterizer_state.gl_rasterization_rules is ignored - pixel centers
  59  *     are always at half integer coordinates and the top-left rule applies
  60  *    (There does not seem to be a hardware switch for this.)
  61  *
  62  *  ! pipe_rasterizer_state.sprite_coord_enable is masked with 0xff on NVC0
  63  *    (The hardware only has 8 slots meant for TexCoord and we have to assign
  64  *     in advance to maintain elegant separate shader objects.)
  65  */
  66
  67 static INLINE uint32_t
  68 nv50_colormask(unsigned mask)
  69 {
  70    uint32_t ret = 0;
  71
  72    if (mask & PIPE_MASK_R)
  73       ret |= 0x0001;
  74    if (mask & PIPE_MASK_G)
  75       ret |= 0x0010;
  76    if (mask & PIPE_MASK_B)
  77       ret |= 0x0100;
  78    if (mask & PIPE_MASK_A)
  79       ret |= 0x1000;
  80
  81    return ret;
  82 }
  83
  84 #define NV50_BLEND_FACTOR_CASE(a, b) \
  85    case PIPE_BLENDFACTOR_##a: return NV50_3D_BLEND_FACTOR_##b
  86
  87 static INLINE uint32_t
  88 nv50_blend_fac(unsigned factor)
  89 {
  90    switch (factor) {
  91    NV50_BLEND_FACTOR_CASE(ONE, ONE);
  92    NV50_BLEND_FACTOR_CASE(SRC_COLOR, SRC_COLOR);
  93    NV50_BLEND_FACTOR_CASE(SRC_ALPHA, SRC_ALPHA);
  94    NV50_BLEND_FACTOR_CASE(DST_ALPHA, DST_ALPHA);
  95    NV50_BLEND_FACTOR_CASE(DST_COLOR, DST_COLOR);
  96    NV50_BLEND_FACTOR_CASE(SRC_ALPHA_SATURATE, SRC_ALPHA_SATURATE);
  97    NV50_BLEND_FACTOR_CASE(CONST_COLOR, CONSTANT_COLOR);
  98    NV50_BLEND_FACTOR_CASE(CONST_ALPHA, CONSTANT_ALPHA);
  99    NV50_BLEND_FACTOR_CASE(SRC1_COLOR, SRC1_COLOR);
 100    NV50_BLEND_FACTOR_CASE(SRC1_ALPHA, SRC1_ALPHA);
 101    NV50_BLEND_FACTOR_CASE(ZERO, ZERO);
 102    NV50_BLEND_FACTOR_CASE(INV_SRC_COLOR, ONE_MINUS_SRC_COLOR);
 103    NV50_BLEND_FACTOR_CASE(INV_SRC_ALPHA, ONE_MINUS_SRC_ALPHA);
 104    NV50_BLEND_FACTOR_CASE(INV_DST_ALPHA, ONE_MINUS_DST_ALPHA);
 105    NV50_BLEND_FACTOR_CASE(INV_DST_COLOR, ONE_MINUS_DST_COLOR);
 106    NV50_BLEND_FACTOR_CASE(INV_CONST_COLOR, ONE_MINUS_CONSTANT_COLOR);
 107    NV50_BLEND_FACTOR_CASE(INV_CONST_ALPHA, ONE_MINUS_CONSTANT_ALPHA);
 108    NV50_BLEND_FACTOR_CASE(INV_SRC1_COLOR, ONE_MINUS_SRC1_COLOR);
 109    NV50_BLEND_FACTOR_CASE(INV_SRC1_ALPHA, ONE_MINUS_SRC1_ALPHA);
 110    default:
 111       return NV50_3D_BLEND_FACTOR_ZERO;
 112    }
 113 }
 114
 115 static void *
 116 nv50_blend_state_create(struct pipe_context *pipe,
 117                         const struct pipe_blend_state *cso)
 118 {
 119    struct nv50_blend_stateobj *so = CALLOC_STRUCT(nv50_blend_stateobj);
 120    int i;
 121    boolean emit_common_func = cso->rt[0].blend_enable;
 122    uint32_t ms;
 123
 124    if (nv50_context(pipe)->screen->tesla->grclass >= NVA3_3D) {
 125       SB_BEGIN_3D(so, BLEND_INDEPENDENT, 1);
 126       SB_DATA    (so, cso->independent_blend_enable);
 127    }
 128
 129    so->pipe = *cso;
 130
 131    SB_BEGIN_3D(so, COLOR_MASK_COMMON, 1);
 132    SB_DATA    (so, !cso->independent_blend_enable);
 133
 134    SB_BEGIN_3D(so, BLEND_ENABLE_COMMON, 1);
 135    SB_DATA    (so, !cso->independent_blend_enable);
 136
 137    if (cso->independent_blend_enable) {
 138       SB_BEGIN_3D(so, BLEND_ENABLE(0), 8);
 139       for (i = 0; i < 8; ++i) {
 140          SB_DATA(so, cso->rt[i].blend_enable);
 141          if (cso->rt[i].blend_enable)
 142             emit_common_func = TRUE;
 143       }
 144
 145       if (nv50_context(pipe)->screen->tesla->grclass >= NVA3_3D) {
 146          emit_common_func = FALSE;
 147
 148          for (i = 0; i < 8; ++i) {
 149             if (!cso->rt[i].blend_enable)
 150                continue;
 151             SB_BEGIN_3D_(so, NVA3_3D_IBLEND_EQUATION_RGB(i), 6);
 152             SB_DATA     (so, nvgl_blend_eqn(cso->rt[i].rgb_func));
 153             SB_DATA     (so, nv50_blend_fac(cso->rt[i].rgb_src_factor));
 154             SB_DATA     (so, nv50_blend_fac(cso->rt[i].rgb_dst_factor));
 155             SB_DATA     (so, nvgl_blend_eqn(cso->rt[i].alpha_func));
 156             SB_DATA     (so, nv50_blend_fac(cso->rt[i].alpha_src_factor));
 157             SB_DATA     (so, nv50_blend_fac(cso->rt[i].alpha_dst_factor));
 158          }
 159       }
 160    } else {
 161       SB_BEGIN_3D(so, BLEND_ENABLE(0), 1);
 162       SB_DATA    (so, cso->rt[0].blend_enable);
 163    }
 164
 165    if (emit_common_func) {
 166       SB_BEGIN_3D(so, BLEND_EQUATION_RGB, 5);
 167       SB_DATA    (so, nvgl_blend_eqn(cso->rt[0].rgb_func));
 168       SB_DATA    (so, nv50_blend_fac(cso->rt[0].rgb_src_factor));
 169       SB_DATA    (so, nv50_blend_fac(cso->rt[0].rgb_dst_factor));
 170       SB_DATA    (so, nvgl_blend_eqn(cso->rt[0].alpha_func));
 171       SB_DATA    (so, nv50_blend_fac(cso->rt[0].alpha_src_factor));
 172       SB_BEGIN_3D(so, BLEND_FUNC_DST_ALPHA, 1);
 173       SB_DATA    (so, nv50_blend_fac(cso->rt[0].alpha_dst_factor));
 174    }
 175
 176    if (cso->logicop_enable) {
 177       SB_BEGIN_3D(so, LOGIC_OP_ENABLE, 2);
 178       SB_DATA    (so, 1);
 179       SB_DATA    (so, nvgl_logicop_func(cso->logicop_func));
 180    } else {
 181       SB_BEGIN_3D(so, LOGIC_OP_ENABLE, 1);
 182       SB_DATA    (so, 0);
 183    }
 184
 185    if (cso->independent_blend_enable) {
 186       SB_BEGIN_3D(so, COLOR_MASK(0), 8);
 187       for (i = 0; i < 8; ++i)
 188          SB_DATA(so, nv50_colormask(cso->rt[i].colormask));
 189    } else {
 190       SB_BEGIN_3D(so, COLOR_MASK(0), 1);
 191       SB_DATA    (so, nv50_colormask(cso->rt[0].colormask));
 192    }
 193
 194    ms = 0;
 195    if (cso->alpha_to_coverage)
 196       ms |= NV50_3D_MULTISAMPLE_CTRL_ALPHA_TO_COVERAGE;
 197    if (cso->alpha_to_one)
 198       ms |= NV50_3D_MULTISAMPLE_CTRL_ALPHA_TO_ONE;
 199
 200    SB_BEGIN_3D(so, MULTISAMPLE_CTRL, 1);
 201    SB_DATA    (so, ms);
 202
 203    assert(so->size <= (sizeof(so->state) / sizeof(so->state[0])));
 204    return so;
 205 }
 206
 207 static void
 208 nv50_blend_state_bind(struct pipe_context *pipe, void *hwcso)
 209 {
 210    struct nv50_context *nv50 = nv50_context(pipe);
 211
 212    nv50->blend = hwcso;
 213    nv50->dirty |= NV50_NEW_BLEND;
 214 }
 215
 216 static void
 217 nv50_blend_state_delete(struct pipe_context *pipe, void *hwcso)
 218 {
 219    FREE(hwcso);
 220 }
 221
 222 /* NOTE: ignoring line_last_pixel, using FALSE (set on screen init) */
 223 static void *
 224 nv50_rasterizer_state_create(struct pipe_context *pipe,
 225                              const struct pipe_rasterizer_state *cso)
 226 {
 227    struct nv50_rasterizer_stateobj *so;
 228
 229    so = CALLOC_STRUCT(nv50_rasterizer_stateobj);
 230    if (!so)
 231       return NULL;
 232    so->pipe = *cso;
 233
 234 #ifndef NV50_SCISSORS_CLIPPING
 235    SB_BEGIN_3D(so, SCISSOR_ENABLE(0), 1);
 236    SB_DATA    (so, cso->scissor);
 237 #endif
 238
 239    SB_BEGIN_3D(so, SHADE_MODEL, 1);
 240    SB_DATA    (so, cso->flatshade ? NV50_3D_SHADE_MODEL_FLAT :
 241                                     NV50_3D_SHADE_MODEL_SMOOTH);
 242    SB_BEGIN_3D(so, PROVOKING_VERTEX_LAST, 1);
 243    SB_DATA    (so, !cso->flatshade_first);
 244    SB_BEGIN_3D(so, VERTEX_TWO_SIDE_ENABLE, 1);
 245    SB_DATA    (so, cso->light_twoside);
 246
 247    SB_BEGIN_3D(so, FRAG_COLOR_CLAMP_EN, 1);
 248    SB_DATA    (so, cso->clamp_fragment_color ? 0x11111111 : 0x00000000);
 249
 250    SB_BEGIN_3D(so, MULTISAMPLE_ENABLE, 1);
 251    SB_DATA    (so, cso->multisample);
 252
 253    SB_BEGIN_3D(so, LINE_WIDTH, 1);
 254    SB_DATA    (so, fui(cso->line_width));
 255    SB_BEGIN_3D(so, LINE_SMOOTH_ENABLE, 1);
 256    SB_DATA    (so, cso->line_smooth);
 257
 258    SB_BEGIN_3D(so, LINE_STIPPLE_ENABLE, 1);
 259    if (cso->line_stipple_enable) {
 260       SB_DATA    (so, 1);
 261       SB_BEGIN_3D(so, LINE_STIPPLE, 1);
 262       SB_DATA    (so, (cso->line_stipple_pattern << 8) |
 263                   cso->line_stipple_factor);
 264    } else {
 265       SB_DATA    (so, 0);
 266    }
 267
 268    if (!cso->point_size_per_vertex) {
 269       SB_BEGIN_3D(so, POINT_SIZE, 1);
 270       SB_DATA    (so, fui(cso->point_size));
 271    }
 272    SB_BEGIN_3D(so, POINT_SPRITE_ENABLE, 1);
 273    SB_DATA    (so, cso->point_quad_rasterization);
 274    SB_BEGIN_3D(so, POINT_SMOOTH_ENABLE, 1);
 275    SB_DATA    (so, cso->point_smooth);
 276
 277    SB_BEGIN_3D(so, POLYGON_MODE_FRONT, 3);
 278    SB_DATA    (so, nvgl_polygon_mode(cso->fill_front));
 279    SB_DATA    (so, nvgl_polygon_mode(cso->fill_back));
 280    SB_DATA    (so, cso->poly_smooth);
 281
 282    SB_BEGIN_3D(so, CULL_FACE_ENABLE, 3);
 283    SB_DATA    (so, cso->cull_face != PIPE_FACE_NONE);
 284    SB_DATA    (so, cso->front_ccw ? NV50_3D_FRONT_FACE_CCW :
 285                                     NV50_3D_FRONT_FACE_CW);
 286    switch (cso->cull_face) {
 287    case PIPE_FACE_FRONT_AND_BACK:
 288       SB_DATA(so, NV50_3D_CULL_FACE_FRONT_AND_BACK);
 289       break;
 290    case PIPE_FACE_FRONT:
 291       SB_DATA(so, NV50_3D_CULL_FACE_FRONT);
 292       break;
 293    case PIPE_FACE_BACK:
 294    default:
 295      SB_DATA(so, NV50_3D_CULL_FACE_BACK);
 296      break;
 297    }
 298
 299    SB_BEGIN_3D(so, POLYGON_STIPPLE_ENABLE, 1);
 300    SB_DATA    (so, cso->poly_stipple_enable);
 301    SB_BEGIN_3D(so, POLYGON_OFFSET_POINT_ENABLE, 3);
 302    SB_DATA    (so, cso->offset_point);
 303    SB_DATA    (so, cso->offset_line);
 304    SB_DATA    (so, cso->offset_tri);
 305
 306    if (cso->offset_point || cso->offset_line || cso->offset_tri) {
 307       SB_BEGIN_3D(so, POLYGON_OFFSET_FACTOR, 1);
 308       SB_DATA    (so, fui(cso->offset_scale));
 309       SB_BEGIN_3D(so, POLYGON_OFFSET_UNITS, 1);
 310       SB_DATA    (so, fui(cso->offset_units * 2.0f));
 311    }
 312
 313    assert(so->size <= (sizeof(so->state) / sizeof(so->state[0])));
 314    return (void *)so;
 315 }
 316
 317 static void
 318 nv50_rasterizer_state_bind(struct pipe_context *pipe, void *hwcso)
 319 {
 320    struct nv50_context *nv50 = nv50_context(pipe);
 321
 322    nv50->rast = hwcso;
 323    nv50->dirty |= NV50_NEW_RASTERIZER;
 324 }
 325
 326 static void
 327 nv50_rasterizer_state_delete(struct pipe_context *pipe, void *hwcso)
 328 {
 329    FREE(hwcso);
 330 }
 331
 332 static void *
 333 nv50_zsa_state_create(struct pipe_context *pipe,
 334                       const struct pipe_depth_stencil_alpha_state *cso)
 335 {
 336    struct nv50_zsa_stateobj *so = CALLOC_STRUCT(nv50_zsa_stateobj);
 337
 338    so->pipe = *cso;
 339
 340    SB_BEGIN_3D(so, DEPTH_WRITE_ENABLE, 1);
 341    SB_DATA    (so, cso->depth.writemask);
 342    SB_BEGIN_3D(so, DEPTH_TEST_ENABLE, 1);
 343    if (cso->depth.enabled) {
 344       SB_DATA    (so, 1);
 345       SB_BEGIN_3D(so, DEPTH_TEST_FUNC, 1);
 346       SB_DATA    (so, nvgl_comparison_op(cso->depth.func));
 347    } else {
 348       SB_DATA    (so, 0);
 349    }
 350
 351    if (cso->stencil[0].enabled) {
 352       SB_BEGIN_3D(so, STENCIL_ENABLE, 5);
 353       SB_DATA    (so, 1);
 354       SB_DATA    (so, nvgl_stencil_op(cso->stencil[0].fail_op));
 355       SB_DATA    (so, nvgl_stencil_op(cso->stencil[0].zfail_op));
 356       SB_DATA    (so, nvgl_stencil_op(cso->stencil[0].zpass_op));
 357       SB_DATA    (so, nvgl_comparison_op(cso->stencil[0].func));
 358       SB_BEGIN_3D(so, STENCIL_FRONT_MASK, 2);
 359       SB_DATA    (so, cso->stencil[0].writemask);
 360       SB_DATA    (so, cso->stencil[0].valuemask);
 361    } else {
 362       SB_BEGIN_3D(so, STENCIL_ENABLE, 1);
 363       SB_DATA    (so, 0);
 364    }
 365
 366    if (cso->stencil[1].enabled) {
 367       assert(cso->stencil[0].enabled);
 368       SB_BEGIN_3D(so, STENCIL_TWO_SIDE_ENABLE, 5);
 369       SB_DATA    (so, 1);
 370       SB_DATA    (so, nvgl_stencil_op(cso->stencil[1].fail_op));
 371       SB_DATA    (so, nvgl_stencil_op(cso->stencil[1].zfail_op));
 372       SB_DATA    (so, nvgl_stencil_op(cso->stencil[1].zpass_op));
 373       SB_DATA    (so, nvgl_comparison_op(cso->stencil[1].func));
 374       SB_BEGIN_3D(so, STENCIL_BACK_MASK, 2);
 375       SB_DATA    (so, cso->stencil[1].writemask);
 376       SB_DATA    (so, cso->stencil[1].valuemask);
 377    } else {
 378       SB_BEGIN_3D(so, STENCIL_TWO_SIDE_ENABLE, 1);
 379       SB_DATA    (so, 0);
 380    }
 381
 382    SB_BEGIN_3D(so, ALPHA_TEST_ENABLE, 1);
 383    if (cso->alpha.enabled) {
 384       SB_DATA    (so, 1);
 385       SB_BEGIN_3D(so, ALPHA_TEST_REF, 2);
 386       SB_DATA    (so, fui(cso->alpha.ref_value));
 387       SB_DATA    (so, nvgl_comparison_op(cso->alpha.func));
 388    } else {
 389       SB_DATA    (so, 0);
 390    }
 391
 392    assert(so->size <= (sizeof(so->state) / sizeof(so->state[0])));
 393    return (void *)so;
 394 }
 395
 396 static void
 397 nv50_zsa_state_bind(struct pipe_context *pipe, void *hwcso)
 398 {
 399    struct nv50_context *nv50 = nv50_context(pipe);
 400
 401    nv50->zsa = hwcso;
 402    nv50->dirty |= NV50_NEW_ZSA;
 403 }
 404
 405 static void
 406 nv50_zsa_state_delete(struct pipe_context *pipe, void *hwcso)
 407 {
 408    FREE(hwcso);
 409 }
 410
 411 /* ====================== SAMPLERS AND TEXTURES ================================
 412  */
 413
 414 #define NV50_TSC_WRAP_CASE(n) \
 415     case PIPE_TEX_WRAP_##n: return NV50_TSC_WRAP_##n
 416
 417 static INLINE unsigned
 418 nv50_tsc_wrap_mode(unsigned wrap)
 419 {
 420    switch (wrap) {
 421    NV50_TSC_WRAP_CASE(REPEAT);
 422    NV50_TSC_WRAP_CASE(MIRROR_REPEAT);
 423    NV50_TSC_WRAP_CASE(CLAMP_TO_EDGE);
 424    NV50_TSC_WRAP_CASE(CLAMP_TO_BORDER);
 425    NV50_TSC_WRAP_CASE(CLAMP);
 426    NV50_TSC_WRAP_CASE(MIRROR_CLAMP_TO_EDGE);
 427    NV50_TSC_WRAP_CASE(MIRROR_CLAMP_TO_BORDER);
 428    NV50_TSC_WRAP_CASE(MIRROR_CLAMP);
 429    default:
 430        NOUVEAU_ERR("unknown wrap mode: %d\n", wrap);
 431        return NV50_TSC_WRAP_REPEAT;
 432    }
 433 }
 434
 435 void *
 436 nv50_sampler_state_create(struct pipe_context *pipe,
 437                           const struct pipe_sampler_state *cso)
 438 {
 439    struct nv50_tsc_entry *so = CALLOC_STRUCT(nv50_tsc_entry);
 440    float f[2];
 441
 442    so->id = -1;
 443
 444    so->tsc[0] = (0x00026000 |
 445                  (nv50_tsc_wrap_mode(cso->wrap_s) << 0) |
 446                  (nv50_tsc_wrap_mode(cso->wrap_t) << 3) |
 447                  (nv50_tsc_wrap_mode(cso->wrap_r) << 6));
 448
 449    switch (cso->mag_img_filter) {
 450    case PIPE_TEX_FILTER_LINEAR:
 451       so->tsc[1] |= NV50_TSC_1_MAGF_LINEAR;
 452       break;
 453    case PIPE_TEX_FILTER_NEAREST:
 454    default:
 455       so->tsc[1] |= NV50_TSC_1_MAGF_NEAREST;
 456       break;
 457    }
 458
 459    switch (cso->min_img_filter) {
 460    case PIPE_TEX_FILTER_LINEAR:
 461       so->tsc[1] |= NV50_TSC_1_MINF_LINEAR;
 462       break;
 463    case PIPE_TEX_FILTER_NEAREST:
 464    default:
 465       so->tsc[1] |= NV50_TSC_1_MINF_NEAREST;
 466       break;
 467    }
 468
 469    switch (cso->min_mip_filter) {
 470    case PIPE_TEX_MIPFILTER_LINEAR:
 471       so->tsc[1] |= NV50_TSC_1_MIPF_LINEAR;
 472       break;
 473    case PIPE_TEX_MIPFILTER_NEAREST:
 474       so->tsc[1] |= NV50_TSC_1_MIPF_NEAREST;
 475       break;
 476    case PIPE_TEX_MIPFILTER_NONE:
 477    default:
 478       so->tsc[1] |= NV50_TSC_1_MIPF_NONE;
 479       break;
 480    }
 481
 482    if (cso->max_anisotropy >= 16)
 483       so->tsc[0] |= (7 << 20);
 484    else
 485    if (cso->max_anisotropy >= 12)
 486       so->tsc[0] |= (6 << 20);
 487    else {
 488       so->tsc[0] |= (cso->max_anisotropy >> 1) << 20;
 489
 490       if (cso->max_anisotropy >= 4)
 491          so->tsc[1] |= NV50_TSC_1_UNKN_ANISO_35;
 492       else
 493       if (cso->max_anisotropy >= 2)
 494          so->tsc[1] |= NV50_TSC_1_UNKN_ANISO_15;
 495    }
 496
 497    if (cso->compare_mode == PIPE_TEX_COMPARE_R_TO_TEXTURE) {
 498       /* NOTE: must be deactivated for non-shadow textures */
 499       so->tsc[0] |= (1 << 9);
 500       so->tsc[0] |= (nvgl_comparison_op(cso->compare_func) & 0x7) << 10;
 501    }
 502
 503    f[0] = CLAMP(cso->lod_bias, -16.0f, 15.0f);
 504    so->tsc[1] |= ((int)(f[0] * 256.0f) & 0x1fff) << 12;
 505
 506    f[0] = CLAMP(cso->min_lod, 0.0f, 15.0f);
 507    f[1] = CLAMP(cso->max_lod, 0.0f, 15.0f);
 508    so->tsc[2] |=
 509       (((int)(f[1] * 256.0f) & 0xfff) << 12) | ((int)(f[0] * 256.0f) & 0xfff);
 510
 511    so->tsc[4] = fui(cso->border_color[0]);
 512    so->tsc[5] = fui(cso->border_color[1]);
 513    so->tsc[6] = fui(cso->border_color[2]);
 514    so->tsc[7] = fui(cso->border_color[3]);
 515
 516    return (void *)so;
 517 }
 518
 519 static void
 520 nv50_sampler_state_delete(struct pipe_context *pipe, void *hwcso)
 521 {
 522    unsigned s, i;
 523
 524    for (s = 0; s < 3; ++s)
 525       for (i = 0; i < nv50_context(pipe)->num_samplers[s]; ++i)
 526          if (nv50_context(pipe)->samplers[s][i] == hwcso)
 527             nv50_context(pipe)->samplers[s][i] = NULL;
 528
 529    nv50_screen_tsc_free(nv50_context(pipe)->screen, nv50_tsc_entry(hwcso));
 530
 531    FREE(hwcso);
 532 }
 533
 534 static INLINE void
 535 nv50_stage_sampler_states_bind(struct nv50_context *nv50, int s,
 536                                unsigned nr, void **hwcso)
 537 {
 538    unsigned i;
 539
 540    for (i = 0; i < nr; ++i) {
 541       struct nv50_tsc_entry *old = nv50->samplers[s][i];
 542
 543       nv50->samplers[s][i] = nv50_tsc_entry(hwcso[i]);
 544       if (old)
 545          nv50_screen_tsc_unlock(nv50->screen, old);
 546    }
 547    for (; i < nv50->num_samplers[s]; ++i)
 548       if (nv50->samplers[s][i])
 549          nv50_screen_tsc_unlock(nv50->screen, nv50->samplers[s][i]);
 550
 551    nv50->num_samplers[s] = nr;
 552
 553    nv50->dirty |= NV50_NEW_SAMPLERS;
 554 }
 555
 556 static void
 557 nv50_vp_sampler_states_bind(struct pipe_context *pipe, unsigned nr, void **s)
 558 {
 559    nv50_stage_sampler_states_bind(nv50_context(pipe), 0, nr, s);
 560 }
 561
 562 static void
 563 nv50_fp_sampler_states_bind(struct pipe_context *pipe, unsigned nr, void **s)
 564 {
 565    nv50_stage_sampler_states_bind(nv50_context(pipe), 2, nr, s);
 566 }
 567
 568 static void
 569 nv50_gp_sampler_states_bind(struct pipe_context *pipe, unsigned nr, void **s)
 570 {
 571    nv50_stage_sampler_states_bind(nv50_context(pipe), 1, nr, s);
 572 }
 573
 574 /* NOTE: only called when not referenced anywhere, won't be bound */
 575 static void
 576 nv50_sampler_view_destroy(struct pipe_context *pipe,
 577                           struct pipe_sampler_view *view)
 578 {
 579    pipe_resource_reference(&view->texture, NULL);
 580
 581    nv50_screen_tic_free(nv50_context(pipe)->screen, nv50_tic_entry(view));
 582
 583    FREE(nv50_tic_entry(view));
 584 }
 585
 586 static INLINE void
 587 nv50_stage_set_sampler_views(struct nv50_context *nv50, int s,
 588                              unsigned nr,
 589                              struct pipe_sampler_view **views)
 590 {
 591    unsigned i;
 592
 593    for (i = 0; i < nr; ++i) {
 594       struct nv50_tic_entry *old = nv50_tic_entry(nv50->textures[s][i]);
 595       if (old)
 596          nv50_screen_tic_unlock(nv50->screen, old);
 597
 598       pipe_sampler_view_reference(&nv50->textures[s][i], views[i]);
 599    }
 600
 601    for (i = nr; i < nv50->num_textures[s]; ++i) {
 602       struct nv50_tic_entry *old = nv50_tic_entry(nv50->textures[s][i]);
 603       if (!old)
 604          continue;
 605       nv50_screen_tic_unlock(nv50->screen, old);
 606
 607       pipe_sampler_view_reference(&nv50->textures[s][i], NULL);
 608    }
 609
 610    nv50->num_textures[s] = nr;
 611
 612    nv50_bufctx_reset(nv50, NV50_BUFCTX_TEXTURES);
 613
 614    nv50->dirty |= NV50_NEW_TEXTURES;
 615 }
 616
 617 static void
 618 nv50_vp_set_sampler_views(struct pipe_context *pipe,
 619                           unsigned nr,
 620                           struct pipe_sampler_view **views)
 621 {
 622    nv50_stage_set_sampler_views(nv50_context(pipe), 0, nr, views);
 623 }
 624
 625 static void
 626 nv50_fp_set_sampler_views(struct pipe_context *pipe,
 627                           unsigned nr,
 628                           struct pipe_sampler_view **views)
 629 {
 630    nv50_stage_set_sampler_views(nv50_context(pipe), 2, nr, views);
 631 }
 632
 633 static void
 634 nv50_gp_set_sampler_views(struct pipe_context *pipe,
 635                           unsigned nr,
 636                           struct pipe_sampler_view **views)
 637 {
 638    nv50_stage_set_sampler_views(nv50_context(pipe), 1, nr, views);
 639 }
 640
 641 /* ============================= SHADERS =======================================
 642  */
 643
 644 static void *
 645 nv50_sp_state_create(struct pipe_context *pipe,
 646                      const struct pipe_shader_state *cso, unsigned type)
 647 {
 648    struct nv50_program *prog;
 649
 650    prog = CALLOC_STRUCT(nv50_program);
 651    if (!prog)
 652       return NULL;
 653
 654    prog->type = type;
 655    prog->pipe.tokens = tgsi_dup_tokens(cso->tokens);
 656
 657    return (void *)prog;
 658 }
 659
 660 static void
 661 nv50_sp_state_delete(struct pipe_context *pipe, void *hwcso)
 662 {
 663    struct nv50_program *prog = (struct nv50_program *)hwcso;
 664
 665    nv50_program_destroy(nv50_context(pipe), prog);
 666
 667    FREE((void *)prog->pipe.tokens);
 668    FREE(prog);
 669 }
 670
 671 static void *
 672 nv50_vp_state_create(struct pipe_context *pipe,
 673                      const struct pipe_shader_state *cso)
 674 {
 675    return nv50_sp_state_create(pipe, cso, PIPE_SHADER_VERTEX);
 676 }
 677
 678 static void
 679 nv50_vp_state_bind(struct pipe_context *pipe, void *hwcso)
 680 {
 681     struct nv50_context *nv50 = nv50_context(pipe);
 682
 683     nv50->vertprog = hwcso;
 684     nv50->dirty |= NV50_NEW_VERTPROG;
 685 }
 686
 687 static void *
 688 nv50_fp_state_create(struct pipe_context *pipe,
 689                      const struct pipe_shader_state *cso)
 690 {
 691    return nv50_sp_state_create(pipe, cso, PIPE_SHADER_FRAGMENT);
 692 }
 693
 694 static void
 695 nv50_fp_state_bind(struct pipe_context *pipe, void *hwcso)
 696 {
 697     struct nv50_context *nv50 = nv50_context(pipe);
 698
 699     nv50->fragprog = hwcso;
 700     nv50->dirty |= NV50_NEW_FRAGPROG;
 701 }
 702
 703 static void *
 704 nv50_gp_state_create(struct pipe_context *pipe,
 705                      const struct pipe_shader_state *cso)
 706 {
 707    return nv50_sp_state_create(pipe, cso, PIPE_SHADER_GEOMETRY);
 708 }
 709
 710 static void
 711 nv50_gp_state_bind(struct pipe_context *pipe, void *hwcso)
 712 {
 713     struct nv50_context *nv50 = nv50_context(pipe);
 714
 715     nv50->gmtyprog = hwcso;
 716     nv50->dirty |= NV50_NEW_GMTYPROG;
 717 }
 718
 719 static void
 720 nv50_set_constant_buffer(struct pipe_context *pipe, uint shader, uint index,
 721                          struct pipe_resource *res)
 722 {
 723    struct nv50_context *nv50 = nv50_context(pipe);
 724
 725    if (nv50->constbuf[shader][index])
 726       nv50_bufctx_del_resident(nv50, NV50_BUFCTX_CONSTANT,
 727                                nv04_resource(nv50->constbuf[shader][index]));
 728
 729    pipe_resource_reference(&nv50->constbuf[shader][index], res);
 730
 731    nv50->constbuf_dirty[shader] |= 1 << index;
 732
 733    nv50->dirty |= NV50_NEW_CONSTBUF;
 734 }
 735
 736 /* =============================================================================
 737  */
 738
 739 static void
 740 nv50_set_blend_color(struct pipe_context *pipe,
 741                      const struct pipe_blend_color *bcol)
 742 {
 743    struct nv50_context *nv50 = nv50_context(pipe);
 744
 745    nv50->blend_colour = *bcol;
 746    nv50->dirty |= NV50_NEW_BLEND_COLOUR;
 747 }
 748
 749 static void
 750 nv50_set_stencil_ref(struct pipe_context *pipe,
 751                      const struct pipe_stencil_ref *sr)
 752 {
 753    struct nv50_context *nv50 = nv50_context(pipe);
 754
 755    nv50->stencil_ref = *sr;
 756    nv50->dirty |= NV50_NEW_STENCIL_REF;
 757 }
 758
 759 static void
 760 nv50_set_clip_state(struct pipe_context *pipe,
 761                     const struct pipe_clip_state *clip)
 762 {
 763    struct nv50_context *nv50 = nv50_context(pipe);
 764    const unsigned size = clip->nr * sizeof(clip->ucp[0]);
 765
 766    memcpy(&nv50->clip.ucp[0][0], &clip->ucp[0][0], size);
 767    nv50->clip.nr = clip->nr;
 768
 769    nv50->clip.depth_clamp = clip->depth_clamp;
 770
 771    nv50->dirty |= NV50_NEW_CLIP;
 772 }
 773
 774 static void
 775 nv50_set_sample_mask(struct pipe_context *pipe, unsigned sample_mask)
 776 {
 777    struct nv50_context *nv50 = nv50_context(pipe);
 778
 779    nv50->sample_mask = sample_mask;
 780    nv50->dirty |= NV50_NEW_SAMPLE_MASK;
 781 }
 782
 783
 784 static void
 785 nv50_set_framebuffer_state(struct pipe_context *pipe,
 786                            const struct pipe_framebuffer_state *fb)
 787 {
 788    struct nv50_context *nv50 = nv50_context(pipe);
 789
 790    nv50->framebuffer = *fb;
 791    nv50->dirty |= NV50_NEW_FRAMEBUFFER;
 792 }
 793
 794 static void
 795 nv50_set_polygon_stipple(struct pipe_context *pipe,
 796                          const struct pipe_poly_stipple *stipple)
 797 {
 798    struct nv50_context *nv50 = nv50_context(pipe);
 799
 800    nv50->stipple = *stipple;
 801    nv50->dirty |= NV50_NEW_STIPPLE;
 802 }
 803
 804 static void
 805 nv50_set_scissor_state(struct pipe_context *pipe,
 806                        const struct pipe_scissor_state *scissor)
 807 {
 808    struct nv50_context *nv50 = nv50_context(pipe);
 809
 810    nv50->scissor = *scissor;
 811    nv50->dirty |= NV50_NEW_SCISSOR;
 812 }
 813
 814 static void
 815 nv50_set_viewport_state(struct pipe_context *pipe,
 816                         const struct pipe_viewport_state *vpt)
 817 {
 818    struct nv50_context *nv50 = nv50_context(pipe);
 819
 820    nv50->viewport = *vpt;
 821    nv50->dirty |= NV50_NEW_VIEWPORT;
 822 }
 823
 824 static void
 825 nv50_set_vertex_buffers(struct pipe_context *pipe,
 826                         unsigned count,
 827                         const struct pipe_vertex_buffer *vb)
 828 {
 829    struct nv50_context *nv50 = nv50_context(pipe);
 830    unsigned i;
 831
 832    for (i = 0; i < count; ++i)
 833       pipe_resource_reference(&nv50->vtxbuf[i].buffer, vb[i].buffer);
 834    for (; i < nv50->num_vtxbufs; ++i)
 835       pipe_resource_reference(&nv50->vtxbuf[i].buffer, NULL);
 836
 837    memcpy(nv50->vtxbuf, vb, sizeof(*vb) * count);
 838    nv50->num_vtxbufs = count;
 839
 840    nv50_bufctx_reset(nv50, NV50_BUFCTX_VERTEX);
 841
 842    nv50->dirty |= NV50_NEW_ARRAYS;
 843 }
 844
 845 static void
 846 nv50_set_index_buffer(struct pipe_context *pipe,
 847                       const struct pipe_index_buffer *ib)
 848 {
 849    struct nv50_context *nv50 = nv50_context(pipe);
 850
 851    if (ib) {
 852       pipe_resource_reference(&nv50->idxbuf.buffer, ib->buffer);
 853
 854       memcpy(&nv50->idxbuf, ib, sizeof(nv50->idxbuf));
 855    } else {
 856       pipe_resource_reference(&nv50->idxbuf.buffer, NULL);
 857    }
 858 }
 859
 860 static void
 861 nv50_vertex_state_bind(struct pipe_context *pipe, void *hwcso)
 862 {
 863    struct nv50_context *nv50 = nv50_context(pipe);
 864
 865    nv50->vertex = hwcso;
 866    nv50->dirty |= NV50_NEW_VERTEX;
 867 }
 868
 869 void
 870 nv50_init_state_functions(struct nv50_context *nv50)
 871 {
 872    struct pipe_context *pipe = &nv50->base.pipe;
 873
 874    pipe->create_blend_state = nv50_blend_state_create;
 875    pipe->bind_blend_state = nv50_blend_state_bind;
 876    pipe->delete_blend_state = nv50_blend_state_delete;
 877
 878    pipe->create_rasterizer_state = nv50_rasterizer_state_create;
 879    pipe->bind_rasterizer_state = nv50_rasterizer_state_bind;
 880    pipe->delete_rasterizer_state = nv50_rasterizer_state_delete;
 881
 882    pipe->create_depth_stencil_alpha_state = nv50_zsa_state_create;
 883    pipe->bind_depth_stencil_alpha_state = nv50_zsa_state_bind;
 884    pipe->delete_depth_stencil_alpha_state = nv50_zsa_state_delete;
 885
 886    pipe->create_sampler_state = nv50_sampler_state_create;
 887    pipe->delete_sampler_state = nv50_sampler_state_delete;
 888    pipe->bind_vertex_sampler_states   = nv50_vp_sampler_states_bind;
 889    pipe->bind_fragment_sampler_states = nv50_fp_sampler_states_bind;
 890    pipe->bind_geometry_sampler_states = nv50_gp_sampler_states_bind;
 891
 892    pipe->create_sampler_view = nv50_create_sampler_view;
 893    pipe->sampler_view_destroy = nv50_sampler_view_destroy;
 894    pipe->set_vertex_sampler_views   = nv50_vp_set_sampler_views;
 895    pipe->set_fragment_sampler_views = nv50_fp_set_sampler_views;
 896    pipe->set_geometry_sampler_views = nv50_gp_set_sampler_views;
 897
 898    pipe->create_vs_state = nv50_vp_state_create;
 899    pipe->create_fs_state = nv50_fp_state_create;
 900    pipe->create_gs_state = nv50_gp_state_create;
 901    pipe->bind_vs_state = nv50_vp_state_bind;
 902    pipe->bind_fs_state = nv50_fp_state_bind;
 903    pipe->bind_gs_state = nv50_gp_state_bind;
 904    pipe->delete_vs_state = nv50_sp_state_delete;
 905    pipe->delete_fs_state = nv50_sp_state_delete;
 906    pipe->delete_gs_state = nv50_sp_state_delete;
 907
 908    pipe->set_blend_color = nv50_set_blend_color;
 909    pipe->set_stencil_ref = nv50_set_stencil_ref;
 910    pipe->set_clip_state = nv50_set_clip_state;
 911    pipe->set_sample_mask = nv50_set_sample_mask;
 912    pipe->set_constant_buffer = nv50_set_constant_buffer;
 913    pipe->set_framebuffer_state = nv50_set_framebuffer_state;
 914    pipe->set_polygon_stipple = nv50_set_polygon_stipple;
 915    pipe->set_scissor_state = nv50_set_scissor_state;
 916    pipe->set_viewport_state = nv50_set_viewport_state;
 917
 918    pipe->create_vertex_elements_state = nv50_vertex_state_create;
 919    pipe->delete_vertex_elements_state = nv50_vertex_state_delete;
 920    pipe->bind_vertex_elements_state = nv50_vertex_state_bind;
 921
 922    pipe->set_vertex_buffers = nv50_set_vertex_buffers;
 923    pipe->set_index_buffer = nv50_set_index_buffer;
 924
 925    pipe->redefine_user_buffer = u_default_redefine_user_buffer;
 926 }
 927