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
 123    if (nv50_context(pipe)->screen->tesla->grclass >= NVA3_3D) {
 124       SB_BEGIN_3D(so, BLEND_INDEPENDENT, 1);
 125       SB_DATA    (so, cso->independent_blend_enable);
 126    }
 127
 128    so->pipe = *cso;
 129
 130    SB_BEGIN_3D(so, COLOR_MASK_COMMON, 1);
 131    SB_DATA    (so, !cso->independent_blend_enable);
 132
 133    SB_BEGIN_3D(so, BLEND_ENABLE_COMMON, 1);
 134    SB_DATA    (so, !cso->independent_blend_enable);
 135
 136    if (cso->independent_blend_enable) {
 137       SB_BEGIN_3D(so, BLEND_ENABLE(0), 8);
 138       for (i = 0; i < 8; ++i) {
 139          SB_DATA(so, cso->rt[i].blend_enable);
 140          if (cso->rt[i].blend_enable)
 141             emit_common_func = TRUE;
 142       }
 143
 144       if (nv50_context(pipe)->screen->tesla->grclass >= NVA3_3D) {
 145          emit_common_func = FALSE;
 146
 147          for (i = 0; i < 8; ++i) {
 148             if (!cso->rt[i].blend_enable)
 149                continue;
 150             SB_BEGIN_3D_(so, NVA3_3D_IBLEND_EQUATION_RGB(i), 6);
 151             SB_DATA     (so, nvgl_blend_eqn(cso->rt[i].rgb_func));
 152             SB_DATA     (so, nv50_blend_fac(cso->rt[i].rgb_src_factor));
 153             SB_DATA     (so, nv50_blend_fac(cso->rt[i].rgb_dst_factor));
 154             SB_DATA     (so, nvgl_blend_eqn(cso->rt[i].alpha_func));
 155             SB_DATA     (so, nv50_blend_fac(cso->rt[i].alpha_src_factor));
 156             SB_DATA     (so, nv50_blend_fac(cso->rt[i].alpha_dst_factor));
 157          }
 158       }
 159    } else {
 160       SB_BEGIN_3D(so, BLEND_ENABLE(0), 1);
 161       SB_DATA    (so, cso->rt[0].blend_enable);
 162    }
 163
 164    if (emit_common_func) {
 165       SB_BEGIN_3D(so, BLEND_EQUATION_RGB, 5);
 166       SB_DATA    (so, nvgl_blend_eqn(cso->rt[0].rgb_func));
 167       SB_DATA    (so, nv50_blend_fac(cso->rt[0].rgb_src_factor));
 168       SB_DATA    (so, nv50_blend_fac(cso->rt[0].rgb_dst_factor));
 169       SB_DATA    (so, nvgl_blend_eqn(cso->rt[0].alpha_func));
 170       SB_DATA    (so, nv50_blend_fac(cso->rt[0].alpha_src_factor));
 171       SB_BEGIN_3D(so, BLEND_FUNC_DST_ALPHA, 1);
 172       SB_DATA    (so, nv50_blend_fac(cso->rt[0].alpha_dst_factor));
 173    }
 174
 175    if (cso->logicop_enable) {
 176       SB_BEGIN_3D(so, LOGIC_OP_ENABLE, 2);
 177       SB_DATA    (so, 1);
 178       SB_DATA    (so, nvgl_logicop_func(cso->logicop_func));
 179    } else {
 180       SB_BEGIN_3D(so, LOGIC_OP_ENABLE, 1);
 181       SB_DATA    (so, 0);
 182    }
 183
 184    if (cso->independent_blend_enable) {
 185       SB_BEGIN_3D(so, COLOR_MASK(0), 8);
 186       for (i = 0; i < 8; ++i)
 187          SB_DATA(so, nv50_colormask(cso->rt[i].colormask));
 188    } else {
 189       SB_BEGIN_3D(so, COLOR_MASK(0), 1);
 190       SB_DATA    (so, nv50_colormask(cso->rt[0].colormask));
 191    }
 192
 193    assert(so->size <= (sizeof(so->state) / sizeof(so->state[0])));
 194    return so;
 195 }
 196
 197 static void
 198 nv50_blend_state_bind(struct pipe_context *pipe, void *hwcso)
 199 {
 200    struct nv50_context *nv50 = nv50_context(pipe);
 201
 202    nv50->blend = hwcso;
 203    nv50->dirty |= NV50_NEW_BLEND;
 204 }
 205
 206 static void
 207 nv50_blend_state_delete(struct pipe_context *pipe, void *hwcso)
 208 {
 209    FREE(hwcso);
 210 }
 211
 212 /* NOTE: ignoring line_last_pixel, using FALSE (set on screen init) */
 213 static void *
 214 nv50_rasterizer_state_create(struct pipe_context *pipe,
 215                              const struct pipe_rasterizer_state *cso)
 216 {
 217    struct nv50_rasterizer_stateobj *so;
 218
 219    so = CALLOC_STRUCT(nv50_rasterizer_stateobj);
 220    if (!so)
 221       return NULL;
 222    so->pipe = *cso;
 223
 224 #ifndef NV50_SCISSORS_CLIPPING
 225    SB_BEGIN_3D(so, SCISSOR_ENABLE(0), 1);
 226    SB_DATA    (so, cso->scissor);
 227 #endif
 228
 229    SB_BEGIN_3D(so, SHADE_MODEL, 1);
 230    SB_DATA    (so, cso->flatshade ? NV50_3D_SHADE_MODEL_FLAT :
 231                                     NV50_3D_SHADE_MODEL_SMOOTH);
 232    SB_BEGIN_3D(so, PROVOKING_VERTEX_LAST, 1);
 233    SB_DATA    (so, !cso->flatshade_first);
 234    SB_BEGIN_3D(so, VERTEX_TWO_SIDE_ENABLE, 1);
 235    SB_DATA    (so, cso->light_twoside);
 236
 237    SB_BEGIN_3D(so, FRAG_COLOR_CLAMP_EN, 1);
 238    SB_DATA    (so, cso->clamp_fragment_color ? 0x11111111 : 0x00000000);
 239
 240    SB_BEGIN_3D(so, LINE_WIDTH, 1);
 241    SB_DATA    (so, fui(cso->line_width));
 242    SB_BEGIN_3D(so, LINE_SMOOTH_ENABLE, 1);
 243    SB_DATA    (so, cso->line_smooth);
 244
 245    SB_BEGIN_3D(so, LINE_STIPPLE_ENABLE, 1);
 246    if (cso->line_stipple_enable) {
 247       SB_DATA    (so, 1);
 248       SB_BEGIN_3D(so, LINE_STIPPLE, 1);
 249       SB_DATA    (so, (cso->line_stipple_pattern << 8) |
 250                   cso->line_stipple_factor);
 251    } else {
 252       SB_DATA    (so, 0);
 253    }
 254
 255    if (!cso->point_size_per_vertex) {
 256       SB_BEGIN_3D(so, POINT_SIZE, 1);
 257       SB_DATA    (so, fui(cso->point_size));
 258    }
 259    SB_BEGIN_3D(so, POINT_SPRITE_ENABLE, 1);
 260    SB_DATA    (so, cso->point_quad_rasterization);
 261    SB_BEGIN_3D(so, POINT_SMOOTH_ENABLE, 1);
 262    SB_DATA    (so, cso->point_smooth);
 263
 264    SB_BEGIN_3D(so, POLYGON_MODE_FRONT, 3);
 265    SB_DATA    (so, nvgl_polygon_mode(cso->fill_front));
 266    SB_DATA    (so, nvgl_polygon_mode(cso->fill_back));
 267    SB_DATA    (so, cso->poly_smooth);
 268
 269    SB_BEGIN_3D(so, CULL_FACE_ENABLE, 3);
 270    SB_DATA    (so, cso->cull_face != PIPE_FACE_NONE);
 271    SB_DATA    (so, cso->front_ccw ? NV50_3D_FRONT_FACE_CCW :
 272                                     NV50_3D_FRONT_FACE_CW);
 273    switch (cso->cull_face) {
 274    case PIPE_FACE_FRONT_AND_BACK:
 275       SB_DATA(so, NV50_3D_CULL_FACE_FRONT_AND_BACK);
 276       break;
 277    case PIPE_FACE_FRONT:
 278       SB_DATA(so, NV50_3D_CULL_FACE_FRONT);
 279       break;
 280    case PIPE_FACE_BACK:
 281    default:
 282      SB_DATA(so, NV50_3D_CULL_FACE_BACK);
 283      break;
 284    }
 285
 286    SB_BEGIN_3D(so, POLYGON_STIPPLE_ENABLE, 1);
 287    SB_DATA    (so, cso->poly_stipple_enable);
 288    SB_BEGIN_3D(so, POLYGON_OFFSET_POINT_ENABLE, 3);
 289    SB_DATA    (so, cso->offset_point);
 290    SB_DATA    (so, cso->offset_line);
 291    SB_DATA    (so, cso->offset_tri);
 292
 293    if (cso->offset_point || cso->offset_line || cso->offset_tri) {
 294       SB_BEGIN_3D(so, POLYGON_OFFSET_FACTOR, 1);
 295       SB_DATA    (so, fui(cso->offset_scale));
 296       SB_BEGIN_3D(so, POLYGON_OFFSET_UNITS, 1);
 297       SB_DATA    (so, fui(cso->offset_units * 2.0f));
 298    }
 299
 300    assert(so->size <= (sizeof(so->state) / sizeof(so->state[0])));
 301    return (void *)so;
 302 }
 303
 304 static void
 305 nv50_rasterizer_state_bind(struct pipe_context *pipe, void *hwcso)
 306 {
 307    struct nv50_context *nv50 = nv50_context(pipe);
 308
 309    nv50->rast = hwcso;
 310    nv50->dirty |= NV50_NEW_RASTERIZER;
 311 }
 312
 313 static void
 314 nv50_rasterizer_state_delete(struct pipe_context *pipe, void *hwcso)
 315 {
 316    FREE(hwcso);
 317 }
 318
 319 static void *
 320 nv50_zsa_state_create(struct pipe_context *pipe,
 321                       const struct pipe_depth_stencil_alpha_state *cso)
 322 {
 323    struct nv50_zsa_stateobj *so = CALLOC_STRUCT(nv50_zsa_stateobj);
 324
 325    so->pipe = *cso;
 326
 327    SB_BEGIN_3D(so, DEPTH_WRITE_ENABLE, 1);
 328    SB_DATA    (so, cso->depth.writemask);
 329    SB_BEGIN_3D(so, DEPTH_TEST_ENABLE, 1);
 330    if (cso->depth.enabled) {
 331       SB_DATA    (so, 1);
 332       SB_BEGIN_3D(so, DEPTH_TEST_FUNC, 1);
 333       SB_DATA    (so, nvgl_comparison_op(cso->depth.func));
 334    } else {
 335       SB_DATA    (so, 0);
 336    }
 337
 338    if (cso->stencil[0].enabled) {
 339       SB_BEGIN_3D(so, STENCIL_ENABLE, 5);
 340       SB_DATA    (so, 1);
 341       SB_DATA    (so, nvgl_stencil_op(cso->stencil[0].fail_op));
 342       SB_DATA    (so, nvgl_stencil_op(cso->stencil[0].zfail_op));
 343       SB_DATA    (so, nvgl_stencil_op(cso->stencil[0].zpass_op));
 344       SB_DATA    (so, nvgl_comparison_op(cso->stencil[0].func));
 345       SB_BEGIN_3D(so, STENCIL_FRONT_MASK, 2);
 346       SB_DATA    (so, cso->stencil[0].writemask);
 347       SB_DATA    (so, cso->stencil[0].valuemask);
 348    } else {
 349       SB_BEGIN_3D(so, STENCIL_ENABLE, 1);
 350       SB_DATA    (so, 0);
 351    }
 352
 353    if (cso->stencil[1].enabled) {
 354       assert(cso->stencil[0].enabled);
 355       SB_BEGIN_3D(so, STENCIL_TWO_SIDE_ENABLE, 5);
 356       SB_DATA    (so, 1);
 357       SB_DATA    (so, nvgl_stencil_op(cso->stencil[1].fail_op));
 358       SB_DATA    (so, nvgl_stencil_op(cso->stencil[1].zfail_op));
 359       SB_DATA    (so, nvgl_stencil_op(cso->stencil[1].zpass_op));
 360       SB_DATA    (so, nvgl_comparison_op(cso->stencil[1].func));
 361       SB_BEGIN_3D(so, STENCIL_BACK_MASK, 2);
 362       SB_DATA    (so, cso->stencil[1].writemask);
 363       SB_DATA    (so, cso->stencil[1].valuemask);
 364    } else {
 365       SB_BEGIN_3D(so, STENCIL_TWO_SIDE_ENABLE, 1);
 366       SB_DATA    (so, 0);
 367    }
 368
 369    SB_BEGIN_3D(so, ALPHA_TEST_ENABLE, 1);
 370    if (cso->alpha.enabled) {
 371       SB_DATA    (so, 1);
 372       SB_BEGIN_3D(so, ALPHA_TEST_REF, 2);
 373       SB_DATA    (so, fui(cso->alpha.ref_value));
 374       SB_DATA    (so, nvgl_comparison_op(cso->alpha.func));
 375    } else {
 376       SB_DATA    (so, 0);
 377    }
 378
 379    assert(so->size <= (sizeof(so->state) / sizeof(so->state[0])));
 380    return (void *)so;
 381 }
 382
 383 static void
 384 nv50_zsa_state_bind(struct pipe_context *pipe, void *hwcso)
 385 {
 386    struct nv50_context *nv50 = nv50_context(pipe);
 387
 388    nv50->zsa = hwcso;
 389    nv50->dirty |= NV50_NEW_ZSA;
 390 }
 391
 392 static void
 393 nv50_zsa_state_delete(struct pipe_context *pipe, void *hwcso)
 394 {
 395    FREE(hwcso);
 396 }
 397
 398 /* ====================== SAMPLERS AND TEXTURES ================================
 399  */
 400
 401 #define NV50_TSC_WRAP_CASE(n) \
 402     case PIPE_TEX_WRAP_##n: return NV50_TSC_WRAP_##n
 403
 404 static INLINE unsigned
 405 nv50_tsc_wrap_mode(unsigned wrap)
 406 {
 407    switch (wrap) {
 408    NV50_TSC_WRAP_CASE(REPEAT);
 409    NV50_TSC_WRAP_CASE(MIRROR_REPEAT);
 410    NV50_TSC_WRAP_CASE(CLAMP_TO_EDGE);
 411    NV50_TSC_WRAP_CASE(CLAMP_TO_BORDER);
 412    NV50_TSC_WRAP_CASE(CLAMP);
 413    NV50_TSC_WRAP_CASE(MIRROR_CLAMP_TO_EDGE);
 414    NV50_TSC_WRAP_CASE(MIRROR_CLAMP_TO_BORDER);
 415    NV50_TSC_WRAP_CASE(MIRROR_CLAMP);
 416    default:
 417        NOUVEAU_ERR("unknown wrap mode: %d\n", wrap);
 418        return NV50_TSC_WRAP_REPEAT;
 419    }
 420 }
 421
 422 void *
 423 nv50_sampler_state_create(struct pipe_context *pipe,
 424                           const struct pipe_sampler_state *cso)
 425 {
 426    struct nv50_tsc_entry *so = CALLOC_STRUCT(nv50_tsc_entry);
 427    float f[2];
 428
 429    so->id = -1;
 430
 431    so->tsc[0] = (0x00026000 |
 432                  (nv50_tsc_wrap_mode(cso->wrap_s) << 0) |
 433                  (nv50_tsc_wrap_mode(cso->wrap_t) << 3) |
 434                  (nv50_tsc_wrap_mode(cso->wrap_r) << 6));
 435
 436    switch (cso->mag_img_filter) {
 437    case PIPE_TEX_FILTER_LINEAR:
 438       so->tsc[1] |= NV50_TSC_1_MAGF_LINEAR;
 439       break;
 440    case PIPE_TEX_FILTER_NEAREST:
 441    default:
 442       so->tsc[1] |= NV50_TSC_1_MAGF_NEAREST;
 443       break;
 444    }
 445
 446    switch (cso->min_img_filter) {
 447    case PIPE_TEX_FILTER_LINEAR:
 448       so->tsc[1] |= NV50_TSC_1_MINF_LINEAR;
 449       break;
 450    case PIPE_TEX_FILTER_NEAREST:
 451    default:
 452       so->tsc[1] |= NV50_TSC_1_MINF_NEAREST;
 453       break;
 454    }
 455
 456    switch (cso->min_mip_filter) {
 457    case PIPE_TEX_MIPFILTER_LINEAR:
 458       so->tsc[1] |= NV50_TSC_1_MIPF_LINEAR;
 459       break;
 460    case PIPE_TEX_MIPFILTER_NEAREST:
 461       so->tsc[1] |= NV50_TSC_1_MIPF_NEAREST;
 462       break;
 463    case PIPE_TEX_MIPFILTER_NONE:
 464    default:
 465       so->tsc[1] |= NV50_TSC_1_MIPF_NONE;
 466       break;
 467    }
 468
 469    if (cso->max_anisotropy >= 16)
 470       so->tsc[0] |= (7 << 20);
 471    else
 472    if (cso->max_anisotropy >= 12)
 473       so->tsc[0] |= (6 << 20);
 474    else {
 475       so->tsc[0] |= (cso->max_anisotropy >> 1) << 20;
 476
 477       if (cso->max_anisotropy >= 4)
 478          so->tsc[1] |= NV50_TSC_1_UNKN_ANISO_35;
 479       else
 480       if (cso->max_anisotropy >= 2)
 481          so->tsc[1] |= NV50_TSC_1_UNKN_ANISO_15;
 482    }
 483
 484    if (cso->compare_mode == PIPE_TEX_COMPARE_R_TO_TEXTURE) {
 485       /* NOTE: must be deactivated for non-shadow textures */
 486       so->tsc[0] |= (1 << 9);
 487       so->tsc[0] |= (nvgl_comparison_op(cso->compare_func) & 0x7) << 10;
 488    }
 489
 490    f[0] = CLAMP(cso->lod_bias, -16.0f, 15.0f);
 491    so->tsc[1] |= ((int)(f[0] * 256.0f) & 0x1fff) << 12;
 492
 493    f[0] = CLAMP(cso->min_lod, 0.0f, 15.0f);
 494    f[1] = CLAMP(cso->max_lod, 0.0f, 15.0f);
 495    so->tsc[2] |=
 496       (((int)(f[1] * 256.0f) & 0xfff) << 12) | ((int)(f[0] * 256.0f) & 0xfff);
 497
 498    so->tsc[4] = fui(cso->border_color[0]);
 499    so->tsc[5] = fui(cso->border_color[1]);
 500    so->tsc[6] = fui(cso->border_color[2]);
 501    so->tsc[7] = fui(cso->border_color[3]);
 502
 503    return (void *)so;
 504 }
 505
 506 static void
 507 nv50_sampler_state_delete(struct pipe_context *pipe, void *hwcso)
 508 {
 509    unsigned s, i;
 510
 511    for (s = 0; s < 3; ++s)
 512       for (i = 0; i < nv50_context(pipe)->num_samplers[s]; ++i)
 513          if (nv50_context(pipe)->samplers[s][i] == hwcso)
 514             nv50_context(pipe)->samplers[s][i] = NULL;
 515
 516    nv50_screen_tsc_free(nv50_context(pipe)->screen, nv50_tsc_entry(hwcso));
 517
 518    FREE(hwcso);
 519 }
 520
 521 static INLINE void
 522 nv50_stage_sampler_states_bind(struct nv50_context *nv50, int s,
 523                                unsigned nr, void **hwcso)
 524 {
 525    unsigned i;
 526
 527    for (i = 0; i < nr; ++i) {
 528       struct nv50_tsc_entry *old = nv50->samplers[s][i];
 529
 530       nv50->samplers[s][i] = nv50_tsc_entry(hwcso[i]);
 531       if (old)
 532          nv50_screen_tsc_unlock(nv50->screen, old);
 533    }
 534    for (; i < nv50->num_samplers[s]; ++i)
 535       if (nv50->samplers[s][i])
 536          nv50_screen_tsc_unlock(nv50->screen, nv50->samplers[s][i]);
 537
 538    nv50->num_samplers[s] = nr;
 539
 540    nv50->dirty |= NV50_NEW_SAMPLERS;
 541 }
 542
 543 static void
 544 nv50_vp_sampler_states_bind(struct pipe_context *pipe, unsigned nr, void **s)
 545 {
 546    nv50_stage_sampler_states_bind(nv50_context(pipe), 0, nr, s);
 547 }
 548
 549 static void
 550 nv50_fp_sampler_states_bind(struct pipe_context *pipe, unsigned nr, void **s)
 551 {
 552    nv50_stage_sampler_states_bind(nv50_context(pipe), 2, nr, s);
 553 }
 554
 555 static void
 556 nv50_gp_sampler_states_bind(struct pipe_context *pipe, unsigned nr, void **s)
 557 {
 558    nv50_stage_sampler_states_bind(nv50_context(pipe), 1, nr, s);
 559 }
 560
 561 /* NOTE: only called when not referenced anywhere, won't be bound */
 562 static void
 563 nv50_sampler_view_destroy(struct pipe_context *pipe,
 564                           struct pipe_sampler_view *view)
 565 {
 566    pipe_resource_reference(&view->texture, NULL);
 567
 568    nv50_screen_tic_free(nv50_context(pipe)->screen, nv50_tic_entry(view));
 569
 570    FREE(nv50_tic_entry(view));
 571 }
 572
 573 static INLINE void
 574 nv50_stage_set_sampler_views(struct nv50_context *nv50, int s,
 575                              unsigned nr,
 576                              struct pipe_sampler_view **views)
 577 {
 578    unsigned i;
 579
 580    for (i = 0; i < nr; ++i) {
 581       struct nv50_tic_entry *old = nv50_tic_entry(nv50->textures[s][i]);
 582       if (old)
 583          nv50_screen_tic_unlock(nv50->screen, old);
 584
 585       pipe_sampler_view_reference(&nv50->textures[s][i], views[i]);
 586    }
 587
 588    for (i = nr; i < nv50->num_textures[s]; ++i) {
 589       struct nv50_tic_entry *old = nv50_tic_entry(nv50->textures[s][i]);
 590       if (!old)
 591          continue;
 592       nv50_screen_tic_unlock(nv50->screen, old);
 593
 594       pipe_sampler_view_reference(&nv50->textures[s][i], NULL);
 595    }
 596
 597    nv50->num_textures[s] = nr;
 598
 599    nv50_bufctx_reset(nv50, NV50_BUFCTX_TEXTURES);
 600
 601    nv50->dirty |= NV50_NEW_TEXTURES;
 602 }
 603
 604 static void
 605 nv50_vp_set_sampler_views(struct pipe_context *pipe,
 606                           unsigned nr,
 607                           struct pipe_sampler_view **views)
 608 {
 609    nv50_stage_set_sampler_views(nv50_context(pipe), 0, nr, views);
 610 }
 611
 612 static void
 613 nv50_fp_set_sampler_views(struct pipe_context *pipe,
 614                           unsigned nr,
 615                           struct pipe_sampler_view **views)
 616 {
 617    nv50_stage_set_sampler_views(nv50_context(pipe), 2, nr, views);
 618 }
 619
 620 static void
 621 nv50_gp_set_sampler_views(struct pipe_context *pipe,
 622                           unsigned nr,
 623                           struct pipe_sampler_view **views)
 624 {
 625    nv50_stage_set_sampler_views(nv50_context(pipe), 1, nr, views);
 626 }
 627
 628 /* ============================= SHADERS =======================================
 629  */
 630
 631 static void *
 632 nv50_sp_state_create(struct pipe_context *pipe,
 633                      const struct pipe_shader_state *cso, unsigned type)
 634 {
 635    struct nv50_program *prog;
 636
 637    prog = CALLOC_STRUCT(nv50_program);
 638    if (!prog)
 639       return NULL;
 640
 641    prog->type = type;
 642    prog->pipe.tokens = tgsi_dup_tokens(cso->tokens);
 643
 644    return (void *)prog;
 645 }
 646
 647 static void
 648 nv50_sp_state_delete(struct pipe_context *pipe, void *hwcso)
 649 {
 650    struct nv50_program *prog = (struct nv50_program *)hwcso;
 651
 652    nv50_program_destroy(nv50_context(pipe), prog);
 653
 654    FREE((void *)prog->pipe.tokens);
 655    FREE(prog);
 656 }
 657
 658 static void *
 659 nv50_vp_state_create(struct pipe_context *pipe,
 660                      const struct pipe_shader_state *cso)
 661 {
 662    return nv50_sp_state_create(pipe, cso, PIPE_SHADER_VERTEX);
 663 }
 664
 665 static void
 666 nv50_vp_state_bind(struct pipe_context *pipe, void *hwcso)
 667 {
 668     struct nv50_context *nv50 = nv50_context(pipe);
 669
 670     nv50->vertprog = hwcso;
 671     nv50->dirty |= NV50_NEW_VERTPROG;
 672 }
 673
 674 static void *
 675 nv50_fp_state_create(struct pipe_context *pipe,
 676                      const struct pipe_shader_state *cso)
 677 {
 678    return nv50_sp_state_create(pipe, cso, PIPE_SHADER_FRAGMENT);
 679 }
 680
 681 static void
 682 nv50_fp_state_bind(struct pipe_context *pipe, void *hwcso)
 683 {
 684     struct nv50_context *nv50 = nv50_context(pipe);
 685
 686     nv50->fragprog = hwcso;
 687     nv50->dirty |= NV50_NEW_FRAGPROG;
 688 }
 689
 690 static void *
 691 nv50_gp_state_create(struct pipe_context *pipe,
 692                      const struct pipe_shader_state *cso)
 693 {
 694    return nv50_sp_state_create(pipe, cso, PIPE_SHADER_GEOMETRY);
 695 }
 696
 697 static void
 698 nv50_gp_state_bind(struct pipe_context *pipe, void *hwcso)
 699 {
 700     struct nv50_context *nv50 = nv50_context(pipe);
 701
 702     nv50->gmtyprog = hwcso;
 703     nv50->dirty |= NV50_NEW_GMTYPROG;
 704 }
 705
 706 static void
 707 nv50_set_constant_buffer(struct pipe_context *pipe, uint shader, uint index,
 708                          struct pipe_resource *res)
 709 {
 710    struct nv50_context *nv50 = nv50_context(pipe);
 711
 712    if (nv50->constbuf[shader][index])
 713       nv50_bufctx_del_resident(nv50, NV50_BUFCTX_CONSTANT,
 714                                nv04_resource(nv50->constbuf[shader][index]));
 715
 716    pipe_resource_reference(&nv50->constbuf[shader][index], res);
 717
 718    nv50->constbuf_dirty[shader] |= 1 << index;
 719
 720    nv50->dirty |= NV50_NEW_CONSTBUF;
 721 }
 722
 723 /* =============================================================================
 724  */
 725
 726 static void
 727 nv50_set_blend_color(struct pipe_context *pipe,
 728                      const struct pipe_blend_color *bcol)
 729 {
 730    struct nv50_context *nv50 = nv50_context(pipe);
 731
 732    nv50->blend_colour = *bcol;
 733    nv50->dirty |= NV50_NEW_BLEND_COLOUR;
 734 }
 735
 736 static void
 737 nv50_set_stencil_ref(struct pipe_context *pipe,
 738                      const struct pipe_stencil_ref *sr)
 739 {
 740    struct nv50_context *nv50 = nv50_context(pipe);
 741
 742    nv50->stencil_ref = *sr;
 743    nv50->dirty |= NV50_NEW_STENCIL_REF;
 744 }
 745
 746 static void
 747 nv50_set_clip_state(struct pipe_context *pipe,
 748                     const struct pipe_clip_state *clip)
 749 {
 750    struct nv50_context *nv50 = nv50_context(pipe);
 751    const unsigned size = clip->nr * sizeof(clip->ucp[0]);
 752
 753    memcpy(&nv50->clip.ucp[0][0], &clip->ucp[0][0], size);
 754    nv50->clip.nr = clip->nr;
 755
 756    nv50->clip.depth_clamp = clip->depth_clamp;
 757
 758    nv50->dirty |= NV50_NEW_CLIP;
 759 }
 760
 761 static void
 762 nv50_set_sample_mask(struct pipe_context *pipe, unsigned sample_mask)
 763 {
 764    struct nv50_context *nv50 = nv50_context(pipe);
 765
 766    nv50->sample_mask = sample_mask;
 767    nv50->dirty |= NV50_NEW_SAMPLE_MASK;
 768 }
 769
 770
 771 static void
 772 nv50_set_framebuffer_state(struct pipe_context *pipe,
 773                            const struct pipe_framebuffer_state *fb)
 774 {
 775    struct nv50_context *nv50 = nv50_context(pipe);
 776
 777    nv50->framebuffer = *fb;
 778    nv50->dirty |= NV50_NEW_FRAMEBUFFER;
 779 }
 780
 781 static void
 782 nv50_set_polygon_stipple(struct pipe_context *pipe,
 783                          const struct pipe_poly_stipple *stipple)
 784 {
 785    struct nv50_context *nv50 = nv50_context(pipe);
 786
 787    nv50->stipple = *stipple;
 788    nv50->dirty |= NV50_NEW_STIPPLE;
 789 }
 790
 791 static void
 792 nv50_set_scissor_state(struct pipe_context *pipe,
 793                        const struct pipe_scissor_state *scissor)
 794 {
 795    struct nv50_context *nv50 = nv50_context(pipe);
 796
 797    nv50->scissor = *scissor;
 798    nv50->dirty |= NV50_NEW_SCISSOR;
 799 }
 800
 801 static void
 802 nv50_set_viewport_state(struct pipe_context *pipe,
 803                         const struct pipe_viewport_state *vpt)
 804 {
 805    struct nv50_context *nv50 = nv50_context(pipe);
 806
 807    nv50->viewport = *vpt;
 808    nv50->dirty |= NV50_NEW_VIEWPORT;
 809 }
 810
 811 static void
 812 nv50_set_vertex_buffers(struct pipe_context *pipe,
 813                         unsigned count,
 814                         const struct pipe_vertex_buffer *vb)
 815 {
 816    struct nv50_context *nv50 = nv50_context(pipe);
 817    unsigned i;
 818
 819    for (i = 0; i < count; ++i)
 820       pipe_resource_reference(&nv50->vtxbuf[i].buffer, vb[i].buffer);
 821    for (; i < nv50->num_vtxbufs; ++i)
 822       pipe_resource_reference(&nv50->vtxbuf[i].buffer, NULL);
 823
 824    memcpy(nv50->vtxbuf, vb, sizeof(*vb) * count);
 825    nv50->num_vtxbufs = count;
 826
 827    nv50_bufctx_reset(nv50, NV50_BUFCTX_VERTEX);
 828
 829    nv50->dirty |= NV50_NEW_ARRAYS;
 830 }
 831
 832 static void
 833 nv50_set_index_buffer(struct pipe_context *pipe,
 834                       const struct pipe_index_buffer *ib)
 835 {
 836    struct nv50_context *nv50 = nv50_context(pipe);
 837
 838    if (ib) {
 839       pipe_resource_reference(&nv50->idxbuf.buffer, ib->buffer);
 840
 841       memcpy(&nv50->idxbuf, ib, sizeof(nv50->idxbuf));
 842    } else {
 843       pipe_resource_reference(&nv50->idxbuf.buffer, NULL);
 844    }
 845 }
 846
 847 static void
 848 nv50_vertex_state_bind(struct pipe_context *pipe, void *hwcso)
 849 {
 850    struct nv50_context *nv50 = nv50_context(pipe);
 851
 852    nv50->vertex = hwcso;
 853    nv50->dirty |= NV50_NEW_VERTEX;
 854 }
 855
 856 void
 857 nv50_init_state_functions(struct nv50_context *nv50)
 858 {
 859    struct pipe_context *pipe = &nv50->base.pipe;
 860
 861    pipe->create_blend_state = nv50_blend_state_create;
 862    pipe->bind_blend_state = nv50_blend_state_bind;
 863    pipe->delete_blend_state = nv50_blend_state_delete;
 864
 865    pipe->create_rasterizer_state = nv50_rasterizer_state_create;
 866    pipe->bind_rasterizer_state = nv50_rasterizer_state_bind;
 867    pipe->delete_rasterizer_state = nv50_rasterizer_state_delete;
 868
 869    pipe->create_depth_stencil_alpha_state = nv50_zsa_state_create;
 870    pipe->bind_depth_stencil_alpha_state = nv50_zsa_state_bind;
 871    pipe->delete_depth_stencil_alpha_state = nv50_zsa_state_delete;
 872
 873    pipe->create_sampler_state = nv50_sampler_state_create;
 874    pipe->delete_sampler_state = nv50_sampler_state_delete;
 875    pipe->bind_vertex_sampler_states   = nv50_vp_sampler_states_bind;
 876    pipe->bind_fragment_sampler_states = nv50_fp_sampler_states_bind;
 877    pipe->bind_geometry_sampler_states = nv50_gp_sampler_states_bind;
 878
 879    pipe->create_sampler_view = nv50_create_sampler_view;
 880    pipe->sampler_view_destroy = nv50_sampler_view_destroy;
 881    pipe->set_vertex_sampler_views   = nv50_vp_set_sampler_views;
 882    pipe->set_fragment_sampler_views = nv50_fp_set_sampler_views;
 883    pipe->set_geometry_sampler_views = nv50_gp_set_sampler_views;
 884
 885    pipe->create_vs_state = nv50_vp_state_create;
 886    pipe->create_fs_state = nv50_fp_state_create;
 887    pipe->create_gs_state = nv50_gp_state_create;
 888    pipe->bind_vs_state = nv50_vp_state_bind;
 889    pipe->bind_fs_state = nv50_fp_state_bind;
 890    pipe->bind_gs_state = nv50_gp_state_bind;
 891    pipe->delete_vs_state = nv50_sp_state_delete;
 892    pipe->delete_fs_state = nv50_sp_state_delete;
 893    pipe->delete_gs_state = nv50_sp_state_delete;
 894
 895    pipe->set_blend_color = nv50_set_blend_color;
 896    pipe->set_stencil_ref = nv50_set_stencil_ref;
 897    pipe->set_clip_state = nv50_set_clip_state;
 898    pipe->set_sample_mask = nv50_set_sample_mask;
 899    pipe->set_constant_buffer = nv50_set_constant_buffer;
 900    pipe->set_framebuffer_state = nv50_set_framebuffer_state;
 901    pipe->set_polygon_stipple = nv50_set_polygon_stipple;
 902    pipe->set_scissor_state = nv50_set_scissor_state;
 903    pipe->set_viewport_state = nv50_set_viewport_state;
 904
 905    pipe->create_vertex_elements_state = nv50_vertex_state_create;
 906    pipe->delete_vertex_elements_state = nv50_vertex_state_delete;
 907    pipe->bind_vertex_elements_state = nv50_vertex_state_bind;
 908
 909    pipe->set_vertex_buffers = nv50_set_vertex_buffers;
 910    pipe->set_index_buffer = nv50_set_index_buffer;
 911
 912    pipe->redefine_user_buffer = u_default_redefine_user_buffer;
 913 }
 914