src/gallium/drivers/nouveau/nv30/nv30_state.c

   1 /*
   2  * Copyright 2012 Red Hat Inc.
   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 OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  * Authors: Ben Skeggs
  23  *
  24  */
  25
  26 #include "util/format/u_format.h"
  27 #include "util/u_helpers.h"
  28 #include "util/u_inlines.h"
  29
  30 #include "nouveau_gldefs.h"
  31 #include "nv_object.xml.h"
  32 #include "nv30/nv30-40_3d.xml.h"
  33 #include "nv30/nv30_context.h"
  34 #include "nv30/nv30_winsys.h"
  35
  36 #define NV40_3D_MRT_BLEND_ENABLE 0x0000036c
  37
  38 static void *
  39 nv30_blend_state_create(struct pipe_context *pipe,
  40                         const struct pipe_blend_state *cso)
  41 {
  42    struct nouveau_object *eng3d = nv30_context(pipe)->screen->eng3d;
  43    struct nv30_blend_stateobj *so;
  44    uint32_t blend[2], cmask[2];
  45    int i;
  46
  47    so = CALLOC_STRUCT(nv30_blend_stateobj);
  48    if (!so)
  49       return NULL;
  50    so->pipe = *cso;
  51
  52    if (cso->logicop_enable) {
  53       SB_MTHD30(so, COLOR_LOGIC_OP_ENABLE, 2);
  54       SB_DATA  (so, 1);
  55       SB_DATA  (so, nvgl_logicop_func(cso->logicop_func));
  56    } else {
  57       SB_MTHD30(so, COLOR_LOGIC_OP_ENABLE, 1);
  58       SB_DATA  (so, 0);
  59    }
  60
  61    SB_MTHD30(so, DITHER_ENABLE, 1);
  62    SB_DATA  (so, cso->dither);
  63
  64    blend[0] = cso->rt[0].blend_enable;
  65    cmask[0] = !!(cso->rt[0].colormask & PIPE_MASK_A) << 24 |
  66               !!(cso->rt[0].colormask & PIPE_MASK_R) << 16 |
  67               !!(cso->rt[0].colormask & PIPE_MASK_G) <<  8 |
  68               !!(cso->rt[0].colormask & PIPE_MASK_B);
  69    if (cso->independent_blend_enable) {
  70       blend[1] = 0;
  71       cmask[1] = 0;
  72       for (i = 1; i < 4; i++) {
  73          blend[1] |= cso->rt[i].blend_enable << i;
  74          cmask[1] |= !!(cso->rt[i].colormask & PIPE_MASK_A) << (0 + (i * 4)) |
  75                      !!(cso->rt[i].colormask & PIPE_MASK_R) << (1 + (i * 4)) |
  76                      !!(cso->rt[i].colormask & PIPE_MASK_G) << (2 + (i * 4)) |
  77                      !!(cso->rt[i].colormask & PIPE_MASK_B) << (3 + (i * 4));
  78       }
  79    } else {
  80       blend[1]  = 0x0000000e *   (blend[0] & 0x00000001);
  81       cmask[1]  = 0x00001110 * !!(cmask[0] & 0x01000000);
  82       cmask[1] |= 0x00002220 * !!(cmask[0] & 0x00010000);
  83       cmask[1] |= 0x00004440 * !!(cmask[0] & 0x00000100);
  84       cmask[1] |= 0x00008880 * !!(cmask[0] & 0x00000001);
  85    }
  86
  87    if (eng3d->oclass >= NV40_3D_CLASS) {
  88       SB_MTHD40(so, MRT_BLEND_ENABLE, 2);
  89       SB_DATA  (so, blend[1]);
  90       SB_DATA  (so, cmask[1]);
  91    }
  92
  93    if (blend[0] || blend[1]) {
  94       SB_MTHD30(so, BLEND_FUNC_ENABLE, 3);
  95       SB_DATA  (so, blend[0]);
  96       SB_DATA  (so, (nvgl_blend_func(cso->rt[0].alpha_src_factor) << 16) |
  97                      nvgl_blend_func(cso->rt[0].rgb_src_factor));
  98       SB_DATA  (so, (nvgl_blend_func(cso->rt[0].alpha_dst_factor) << 16) |
  99                      nvgl_blend_func(cso->rt[0].rgb_dst_factor));
 100       if (eng3d->oclass < NV40_3D_CLASS) {
 101          SB_MTHD30(so, BLEND_EQUATION, 1);
 102          SB_DATA  (so, nvgl_blend_eqn(cso->rt[0].rgb_func));
 103       } else {
 104          SB_MTHD40(so, BLEND_EQUATION, 1);
 105          SB_DATA  (so, (nvgl_blend_eqn(cso->rt[0].alpha_func) << 16) |
 106                         nvgl_blend_eqn(cso->rt[0].rgb_func));
 107       }
 108    } else {
 109       SB_MTHD30(so, BLEND_FUNC_ENABLE, 1);
 110       SB_DATA  (so, blend[0]);
 111    }
 112
 113    SB_MTHD30(so, COLOR_MASK, 1);
 114    SB_DATA  (so, cmask[0]);
 115    return so;
 116 }
 117
 118 static void
 119 nv30_blend_state_bind(struct pipe_context *pipe, void *hwcso)
 120 {
 121    struct nv30_context *nv30 = nv30_context(pipe);
 122
 123    nv30->blend = hwcso;
 124    nv30->dirty |= NV30_NEW_BLEND;
 125 }
 126
 127 static void
 128 nv30_blend_state_delete(struct pipe_context *pipe, void *hwcso)
 129 {
 130    FREE(hwcso);
 131 }
 132
 133 static void *
 134 nv30_rasterizer_state_create(struct pipe_context *pipe,
 135                              const struct pipe_rasterizer_state *cso)
 136 {
 137    struct nv30_rasterizer_stateobj *so;
 138
 139    so = CALLOC_STRUCT(nv30_rasterizer_stateobj);
 140    if (!so)
 141       return NULL;
 142    so->pipe = *cso;
 143
 144    SB_MTHD30(so, SHADE_MODEL, 1);
 145    SB_DATA  (so, cso->flatshade ? NV30_3D_SHADE_MODEL_FLAT :
 146                                   NV30_3D_SHADE_MODEL_SMOOTH);
 147
 148    SB_MTHD30(so, POLYGON_MODE_FRONT, 6);
 149    SB_DATA  (so, nvgl_polygon_mode(cso->fill_front));
 150    SB_DATA  (so, nvgl_polygon_mode(cso->fill_back));
 151    if (cso->cull_face == PIPE_FACE_FRONT_AND_BACK)
 152       SB_DATA  (so, NV30_3D_CULL_FACE_FRONT_AND_BACK);
 153    else
 154    if (cso->cull_face == PIPE_FACE_FRONT)
 155       SB_DATA  (so, NV30_3D_CULL_FACE_FRONT);
 156    else
 157       SB_DATA  (so, NV30_3D_CULL_FACE_BACK);
 158    SB_DATA  (so, cso->front_ccw ? NV30_3D_FRONT_FACE_CCW :
 159                                   NV30_3D_FRONT_FACE_CW);
 160    SB_DATA  (so, cso->poly_smooth);
 161    SB_DATA  (so, cso->cull_face != PIPE_FACE_NONE);
 162
 163    SB_MTHD30(so, POLYGON_OFFSET_POINT_ENABLE, 3);
 164    SB_DATA  (so, cso->offset_point);
 165    SB_DATA  (so, cso->offset_line);
 166    SB_DATA  (so, cso->offset_tri);
 167    if (cso->offset_point || cso->offset_line || cso->offset_tri) {
 168       SB_MTHD30(so, POLYGON_OFFSET_FACTOR, 2);
 169       SB_DATA  (so, fui(cso->offset_scale));
 170       SB_DATA  (so, fui(cso->offset_units * 2.0));
 171    }
 172
 173    SB_MTHD30(so, LINE_WIDTH, 2);
 174    SB_DATA  (so, (unsigned char)(cso->line_width * 8.0) & 0xff);
 175    SB_DATA  (so, cso->line_smooth);
 176    SB_MTHD30(so, LINE_STIPPLE_ENABLE, 2);
 177    SB_DATA  (so, cso->line_stipple_enable);
 178    SB_DATA  (so, (cso->line_stipple_pattern << 16) |
 179                   cso->line_stipple_factor);
 180
 181    SB_MTHD30(so, VERTEX_TWO_SIDE_ENABLE, 1);
 182    SB_DATA  (so, cso->light_twoside);
 183    SB_MTHD30(so, POLYGON_STIPPLE_ENABLE, 1);
 184    SB_DATA  (so, cso->poly_stipple_enable);
 185    SB_MTHD30(so, POINT_SIZE, 1);
 186    SB_DATA  (so, fui(cso->point_size));
 187    SB_MTHD30(so, FLATSHADE_FIRST, 1);
 188    SB_DATA  (so, cso->flatshade_first);
 189
 190    SB_MTHD30(so, DEPTH_CONTROL, 1);
 191    SB_DATA  (so, cso->depth_clip_near ? 0x00000001 : 0x00000010);
 192    return so;
 193 }
 194
 195 static void
 196 nv30_rasterizer_state_bind(struct pipe_context *pipe, void *hwcso)
 197 {
 198    struct nv30_context *nv30 = nv30_context(pipe);
 199
 200    nv30->rast = hwcso;
 201    nv30->dirty |= NV30_NEW_RASTERIZER;
 202 }
 203
 204 static void
 205 nv30_rasterizer_state_delete(struct pipe_context *pipe, void *hwcso)
 206 {
 207    FREE(hwcso);
 208 }
 209
 210 static void *
 211 nv30_zsa_state_create(struct pipe_context *pipe,
 212                       const struct pipe_depth_stencil_alpha_state *cso)
 213 {
 214    struct nouveau_object *eng3d = nv30_context(pipe)->screen->eng3d;
 215    struct nv30_zsa_stateobj *so;
 216
 217    so = CALLOC_STRUCT(nv30_zsa_stateobj);
 218    if (!so)
 219       return NULL;
 220    so->pipe = *cso;
 221
 222    SB_MTHD30(so, DEPTH_FUNC, 3);
 223    SB_DATA  (so, nvgl_comparison_op(cso->depth.func));
 224    SB_DATA  (so, cso->depth.writemask);
 225    SB_DATA  (so, cso->depth.enabled);
 226
 227    if (eng3d->oclass == NV35_3D_CLASS || eng3d->oclass >= NV40_3D_CLASS) {
 228       SB_MTHD35(so, DEPTH_BOUNDS_TEST_ENABLE, 3);
 229       SB_DATA  (so, cso->depth.bounds_test);
 230       SB_DATA  (so, fui(cso->depth.bounds_min));
 231       SB_DATA  (so, fui(cso->depth.bounds_max));
 232    }
 233
 234    if (cso->stencil[0].enabled) {
 235       SB_MTHD30(so, STENCIL_ENABLE(0), 3);
 236       SB_DATA  (so, 1);
 237       SB_DATA  (so, cso->stencil[0].writemask);
 238       SB_DATA  (so, nvgl_comparison_op(cso->stencil[0].func));
 239       SB_MTHD30(so, STENCIL_FUNC_MASK(0), 4);
 240       SB_DATA  (so, cso->stencil[0].valuemask);
 241       SB_DATA  (so, nvgl_stencil_op(cso->stencil[0].fail_op));
 242       SB_DATA  (so, nvgl_stencil_op(cso->stencil[0].zfail_op));
 243       SB_DATA  (so, nvgl_stencil_op(cso->stencil[0].zpass_op));
 244    } else {
 245       SB_MTHD30(so, STENCIL_ENABLE(0), 2);
 246       SB_DATA  (so, 0);
 247       SB_DATA  (so, 0x000000ff);
 248    }
 249
 250    if (cso->stencil[1].enabled) {
 251       SB_MTHD30(so, STENCIL_ENABLE(1), 3);
 252       SB_DATA  (so, 1);
 253       SB_DATA  (so, cso->stencil[1].writemask);
 254       SB_DATA  (so, nvgl_comparison_op(cso->stencil[1].func));
 255       SB_MTHD30(so, STENCIL_FUNC_MASK(1), 4);
 256       SB_DATA  (so, cso->stencil[1].valuemask);
 257       SB_DATA  (so, nvgl_stencil_op(cso->stencil[1].fail_op));
 258       SB_DATA  (so, nvgl_stencil_op(cso->stencil[1].zfail_op));
 259       SB_DATA  (so, nvgl_stencil_op(cso->stencil[1].zpass_op));
 260    } else {
 261       SB_MTHD30(so, STENCIL_ENABLE(1), 1);
 262       SB_DATA  (so, 0);
 263    }
 264
 265    SB_MTHD30(so, ALPHA_FUNC_ENABLE, 3);
 266    SB_DATA  (so, cso->alpha.enabled ? 1 : 0);
 267    SB_DATA  (so, nvgl_comparison_op(cso->alpha.func));
 268    SB_DATA  (so, float_to_ubyte(cso->alpha.ref_value));
 269
 270    return so;
 271 }
 272
 273 static void
 274 nv30_zsa_state_bind(struct pipe_context *pipe, void *hwcso)
 275 {
 276    struct nv30_context *nv30 = nv30_context(pipe);
 277
 278    nv30->zsa = hwcso;
 279    nv30->dirty |= NV30_NEW_ZSA;
 280 }
 281
 282 static void
 283 nv30_zsa_state_delete(struct pipe_context *pipe, void *hwcso)
 284 {
 285    FREE(hwcso);
 286 }
 287
 288 static void
 289 nv30_set_blend_color(struct pipe_context *pipe,
 290                      const struct pipe_blend_color *bcol)
 291 {
 292     struct nv30_context *nv30 = nv30_context(pipe);
 293
 294     nv30->blend_colour = *bcol;
 295     nv30->dirty |= NV30_NEW_BLEND_COLOUR;
 296 }
 297
 298 static void
 299 nv30_set_stencil_ref(struct pipe_context *pipe,
 300                      const struct pipe_stencil_ref *sr)
 301 {
 302     struct nv30_context *nv30 = nv30_context(pipe);
 303
 304     nv30->stencil_ref = *sr;
 305     nv30->dirty |= NV30_NEW_STENCIL_REF;
 306 }
 307
 308 static void
 309 nv30_set_clip_state(struct pipe_context *pipe,
 310                     const struct pipe_clip_state *clip)
 311 {
 312     struct nv30_context *nv30 = nv30_context(pipe);
 313
 314     memcpy(nv30->clip.ucp, clip->ucp, sizeof(clip->ucp));
 315
 316     nv30->dirty |= NV30_NEW_CLIP;
 317 }
 318
 319 static void
 320 nv30_set_sample_mask(struct pipe_context *pipe, unsigned sample_mask)
 321 {
 322     struct nv30_context *nv30 = nv30_context(pipe);
 323
 324     nv30->sample_mask = sample_mask;
 325     nv30->dirty |= NV30_NEW_SAMPLE_MASK;
 326 }
 327
 328 static void
 329 nv30_set_constant_buffer(struct pipe_context *pipe,
 330                          enum pipe_shader_type shader, uint index,
 331                          const struct pipe_constant_buffer *cb)
 332 {
 333    struct nv30_context *nv30 = nv30_context(pipe);
 334    struct pipe_resource *buf = cb ? cb->buffer : NULL;
 335    unsigned size;
 336
 337    if (cb && cb->user_buffer) {
 338       buf = nouveau_user_buffer_create(pipe->screen, (void*)cb->user_buffer,
 339                                        cb->buffer_size,
 340                                        PIPE_BIND_CONSTANT_BUFFER);
 341    }
 342
 343    size = 0;
 344    if (buf)
 345       size = buf->width0 / (4 * sizeof(float));
 346
 347    if (shader == PIPE_SHADER_VERTEX) {
 348       pipe_resource_reference(&nv30->vertprog.constbuf, buf);
 349       nv30->vertprog.constbuf_nr = size;
 350       nv30->dirty |= NV30_NEW_VERTCONST;
 351    } else
 352    if (shader == PIPE_SHADER_FRAGMENT) {
 353       pipe_resource_reference(&nv30->fragprog.constbuf, buf);
 354       nv30->fragprog.constbuf_nr = size;
 355       nv30->dirty |= NV30_NEW_FRAGCONST;
 356    }
 357
 358    if (cb && cb->user_buffer) {
 359       pipe_resource_reference(&buf, NULL);
 360    }
 361 }
 362
 363 static void
 364 nv30_set_framebuffer_state(struct pipe_context *pipe,
 365                            const struct pipe_framebuffer_state *fb)
 366 {
 367     struct nv30_context *nv30 = nv30_context(pipe);
 368
 369     nouveau_bufctx_reset(nv30->bufctx, BUFCTX_FB);
 370
 371     nv30->framebuffer = *fb;
 372     nv30->dirty |= NV30_NEW_FRAMEBUFFER;
 373
 374    /* Hardware can't handle different swizzled-ness or different blocksizes
 375     * for zs and cbufs. If both are supplied and something doesn't match,
 376     * blank out the zs for now so that at least *some* rendering can occur.
 377     */
 378     if (fb->nr_cbufs > 0 && fb->zsbuf) {
 379        struct nv30_miptree *color_mt = nv30_miptree(fb->cbufs[0]->texture);
 380        struct nv30_miptree *zeta_mt = nv30_miptree(fb->zsbuf->texture);
 381
 382        if (color_mt->swizzled != zeta_mt->swizzled ||
 383            (color_mt->swizzled &&
 384             (util_format_get_blocksize(fb->zsbuf->format) > 2) !=
 385             (util_format_get_blocksize(fb->cbufs[0]->format) > 2))) {
 386           nv30->framebuffer.zsbuf = NULL;
 387           debug_printf("Mismatched color and zeta formats, ignoring zeta.\n");
 388        }
 389     }
 390 }
 391
 392 static void
 393 nv30_set_polygon_stipple(struct pipe_context *pipe,
 394                          const struct pipe_poly_stipple *stipple)
 395 {
 396     struct nv30_context *nv30 = nv30_context(pipe);
 397
 398     nv30->stipple = *stipple;
 399     nv30->dirty |= NV30_NEW_STIPPLE;
 400 }
 401
 402 static void
 403 nv30_set_scissor_states(struct pipe_context *pipe,
 404                         unsigned start_slot,
 405                         unsigned num_viewports,
 406                         const struct pipe_scissor_state *scissor)
 407 {
 408     struct nv30_context *nv30 = nv30_context(pipe);
 409
 410     nv30->scissor = *scissor;
 411     nv30->dirty |= NV30_NEW_SCISSOR;
 412 }
 413
 414 static void
 415 nv30_set_viewport_states(struct pipe_context *pipe,
 416                          unsigned start_slot,
 417                          unsigned num_viewports,
 418                          const struct pipe_viewport_state *vpt)
 419 {
 420     struct nv30_context *nv30 = nv30_context(pipe);
 421
 422     nv30->viewport = *vpt;
 423     nv30->dirty |= NV30_NEW_VIEWPORT;
 424 }
 425
 426 static void
 427 nv30_set_vertex_buffers(struct pipe_context *pipe,
 428                         unsigned start_slot, unsigned count,
 429                         const struct pipe_vertex_buffer *vb)
 430 {
 431     struct nv30_context *nv30 = nv30_context(pipe);
 432
 433     nouveau_bufctx_reset(nv30->bufctx, BUFCTX_VTXBUF);
 434
 435     util_set_vertex_buffers_count(nv30->vtxbuf, &nv30->num_vtxbufs,
 436                                   vb, start_slot, count);
 437
 438     nv30->dirty |= NV30_NEW_ARRAYS;
 439 }
 440
 441 void
 442 nv30_state_init(struct pipe_context *pipe)
 443 {
 444    pipe->create_blend_state = nv30_blend_state_create;
 445    pipe->bind_blend_state = nv30_blend_state_bind;
 446    pipe->delete_blend_state = nv30_blend_state_delete;
 447
 448    pipe->create_rasterizer_state = nv30_rasterizer_state_create;
 449    pipe->bind_rasterizer_state = nv30_rasterizer_state_bind;
 450    pipe->delete_rasterizer_state = nv30_rasterizer_state_delete;
 451
 452    pipe->create_depth_stencil_alpha_state = nv30_zsa_state_create;
 453    pipe->bind_depth_stencil_alpha_state = nv30_zsa_state_bind;
 454    pipe->delete_depth_stencil_alpha_state = nv30_zsa_state_delete;
 455
 456    pipe->set_blend_color = nv30_set_blend_color;
 457    pipe->set_stencil_ref = nv30_set_stencil_ref;
 458    pipe->set_clip_state = nv30_set_clip_state;
 459    pipe->set_sample_mask = nv30_set_sample_mask;
 460    pipe->set_constant_buffer = nv30_set_constant_buffer;
 461    pipe->set_framebuffer_state = nv30_set_framebuffer_state;
 462    pipe->set_polygon_stipple = nv30_set_polygon_stipple;
 463    pipe->set_scissor_states = nv30_set_scissor_states;
 464    pipe->set_viewport_states = nv30_set_viewport_states;
 465
 466    pipe->set_vertex_buffers = nv30_set_vertex_buffers;
 467 }