src/gallium/drivers/swr/swr_state.cpp

   1 /****************************************************************************
   2  * Copyright (C) 2015 Intel Corporation.   All Rights Reserved.
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   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
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   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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  21  * IN THE SOFTWARE.
  22  ***************************************************************************/
  23
  24 #include "common/os.h"
  25 #include "jit_api.h"
  26 #include "JitManager.h"
  27 #include "state_llvm.h"
  28
  29 #include "gallivm/lp_bld_tgsi.h"
  30 #include "util/u_format.h"
  31
  32 #include "util/u_memory.h"
  33 #include "util/u_inlines.h"
  34 #include "util/u_helpers.h"
  35 #include "util/u_framebuffer.h"
  36
  37 #include "swr_state.h"
  38 #include "swr_context.h"
  39 #include "swr_context_llvm.h"
  40 #include "swr_screen.h"
  41 #include "swr_resource.h"
  42 #include "swr_tex_sample.h"
  43 #include "swr_scratch.h"
  44 #include "swr_shader.h"
  45
  46 /* These should be pulled out into separate files as necessary
  47  * Just initializing everything here to get going. */
  48
  49 static void *
  50 swr_create_blend_state(struct pipe_context *pipe,
  51                        const struct pipe_blend_state *blend)
  52 {
  53    struct swr_blend_state *state = CALLOC_STRUCT(swr_blend_state);
  54
  55    memcpy(&state->pipe, blend, sizeof(*blend));
  56
  57    struct pipe_blend_state *pipe_blend = &state->pipe;
  58
  59    for (int target = 0;
  60         target < std::min(SWR_NUM_RENDERTARGETS, PIPE_MAX_COLOR_BUFS);
  61         target++) {
  62
  63       struct pipe_rt_blend_state *rt_blend = &pipe_blend->rt[target];
  64       SWR_RENDER_TARGET_BLEND_STATE &blendState =
  65          state->blendState.renderTarget[target];
  66       RENDER_TARGET_BLEND_COMPILE_STATE &compileState =
  67          state->compileState[target];
  68
  69       if (target != 0 && !pipe_blend->independent_blend_enable) {
  70          memcpy(&compileState,
  71                 &state->compileState[0],
  72                 sizeof(RENDER_TARGET_BLEND_COMPILE_STATE));
  73          continue;
  74       }
  75
  76       compileState.blendEnable = rt_blend->blend_enable;
  77       if (compileState.blendEnable) {
  78          compileState.sourceAlphaBlendFactor =
  79             swr_convert_blend_factor(rt_blend->alpha_src_factor);
  80          compileState.destAlphaBlendFactor =
  81             swr_convert_blend_factor(rt_blend->alpha_dst_factor);
  82          compileState.sourceBlendFactor =
  83             swr_convert_blend_factor(rt_blend->rgb_src_factor);
  84          compileState.destBlendFactor =
  85             swr_convert_blend_factor(rt_blend->rgb_dst_factor);
  86
  87          compileState.colorBlendFunc =
  88             swr_convert_blend_func(rt_blend->rgb_func);
  89          compileState.alphaBlendFunc =
  90             swr_convert_blend_func(rt_blend->alpha_func);
  91       }
  92       compileState.logicOpEnable = state->pipe.logicop_enable;
  93       if (compileState.logicOpEnable) {
  94          compileState.logicOpFunc =
  95             swr_convert_logic_op(state->pipe.logicop_func);
  96       }
  97
  98       blendState.writeDisableRed =
  99          (rt_blend->colormask & PIPE_MASK_R) ? 0 : 1;
 100       blendState.writeDisableGreen =
 101          (rt_blend->colormask & PIPE_MASK_G) ? 0 : 1;
 102       blendState.writeDisableBlue =
 103          (rt_blend->colormask & PIPE_MASK_B) ? 0 : 1;
 104       blendState.writeDisableAlpha =
 105          (rt_blend->colormask & PIPE_MASK_A) ? 0 : 1;
 106
 107       if (rt_blend->colormask == 0)
 108          compileState.blendEnable = false;
 109    }
 110
 111    return state;
 112 }
 113
 114 static void
 115 swr_bind_blend_state(struct pipe_context *pipe, void *blend)
 116 {
 117    struct swr_context *ctx = swr_context(pipe);
 118
 119    if (ctx->blend == blend)
 120       return;
 121
 122    ctx->blend = (swr_blend_state *)blend;
 123
 124    ctx->dirty |= SWR_NEW_BLEND;
 125 }
 126
 127 static void
 128 swr_delete_blend_state(struct pipe_context *pipe, void *blend)
 129 {
 130    FREE(blend);
 131 }
 132
 133 static void
 134 swr_set_blend_color(struct pipe_context *pipe,
 135                     const struct pipe_blend_color *color)
 136 {
 137    struct swr_context *ctx = swr_context(pipe);
 138
 139    ctx->blend_color = *color;
 140
 141    ctx->dirty |= SWR_NEW_BLEND;
 142 }
 143
 144 static void
 145 swr_set_stencil_ref(struct pipe_context *pipe,
 146                     const struct pipe_stencil_ref *ref)
 147 {
 148    struct swr_context *ctx = swr_context(pipe);
 149
 150    ctx->stencil_ref = *ref;
 151
 152    ctx->dirty |= SWR_NEW_DEPTH_STENCIL_ALPHA;
 153 }
 154
 155 static void *
 156 swr_create_depth_stencil_state(
 157    struct pipe_context *pipe,
 158    const struct pipe_depth_stencil_alpha_state *depth_stencil)
 159 {
 160    struct pipe_depth_stencil_alpha_state *state;
 161
 162    state = (pipe_depth_stencil_alpha_state *)mem_dup(depth_stencil,
 163                                                      sizeof *depth_stencil);
 164
 165    return state;
 166 }
 167
 168 static void
 169 swr_bind_depth_stencil_state(struct pipe_context *pipe, void *depth_stencil)
 170 {
 171    struct swr_context *ctx = swr_context(pipe);
 172
 173    if (ctx->depth_stencil == (pipe_depth_stencil_alpha_state *)depth_stencil)
 174       return;
 175
 176    ctx->depth_stencil = (pipe_depth_stencil_alpha_state *)depth_stencil;
 177
 178    ctx->dirty |= SWR_NEW_DEPTH_STENCIL_ALPHA;
 179 }
 180
 181 static void
 182 swr_delete_depth_stencil_state(struct pipe_context *pipe, void *depth)
 183 {
 184    FREE(depth);
 185 }
 186
 187
 188 static void *
 189 swr_create_rasterizer_state(struct pipe_context *pipe,
 190                             const struct pipe_rasterizer_state *rast)
 191 {
 192    struct pipe_rasterizer_state *state;
 193    state = (pipe_rasterizer_state *)mem_dup(rast, sizeof *rast);
 194
 195    return state;
 196 }
 197
 198 static void
 199 swr_bind_rasterizer_state(struct pipe_context *pipe, void *handle)
 200 {
 201    struct swr_context *ctx = swr_context(pipe);
 202    const struct pipe_rasterizer_state *rasterizer =
 203       (const struct pipe_rasterizer_state *)handle;
 204
 205    if (ctx->rasterizer == (pipe_rasterizer_state *)rasterizer)
 206       return;
 207
 208    ctx->rasterizer = (pipe_rasterizer_state *)rasterizer;
 209
 210    ctx->dirty |= SWR_NEW_RASTERIZER;
 211 }
 212
 213 static void
 214 swr_delete_rasterizer_state(struct pipe_context *pipe, void *rasterizer)
 215 {
 216    FREE(rasterizer);
 217 }
 218
 219
 220 static void *
 221 swr_create_sampler_state(struct pipe_context *pipe,
 222                          const struct pipe_sampler_state *sampler)
 223 {
 224    struct pipe_sampler_state *state =
 225       (pipe_sampler_state *)mem_dup(sampler, sizeof *sampler);
 226
 227    return state;
 228 }
 229
 230 static void
 231 swr_bind_sampler_states(struct pipe_context *pipe,
 232                         unsigned shader,
 233                         unsigned start,
 234                         unsigned num,
 235                         void **samplers)
 236 {
 237    struct swr_context *ctx = swr_context(pipe);
 238    unsigned i;
 239
 240    assert(shader < PIPE_SHADER_TYPES);
 241    assert(start + num <= Elements(ctx->samplers[shader]));
 242
 243    /* set the new samplers */
 244    ctx->num_samplers[shader] = num;
 245    for (i = 0; i < num; i++) {
 246       ctx->samplers[shader][start + i] = (pipe_sampler_state *)samplers[i];
 247    }
 248
 249    ctx->dirty |= SWR_NEW_SAMPLER;
 250 }
 251
 252 static void
 253 swr_delete_sampler_state(struct pipe_context *pipe, void *sampler)
 254 {
 255    FREE(sampler);
 256 }
 257
 258
 259 static struct pipe_sampler_view *
 260 swr_create_sampler_view(struct pipe_context *pipe,
 261                         struct pipe_resource *texture,
 262                         const struct pipe_sampler_view *templ)
 263 {
 264    struct pipe_sampler_view *view = CALLOC_STRUCT(pipe_sampler_view);
 265
 266    if (view) {
 267       *view = *templ;
 268       view->reference.count = 1;
 269       view->texture = NULL;
 270       pipe_resource_reference(&view->texture, texture);
 271       view->context = pipe;
 272    }
 273
 274    return view;
 275 }
 276
 277 static void
 278 swr_set_sampler_views(struct pipe_context *pipe,
 279                       unsigned shader,
 280                       unsigned start,
 281                       unsigned num,
 282                       struct pipe_sampler_view **views)
 283 {
 284    struct swr_context *ctx = swr_context(pipe);
 285    uint i;
 286
 287    assert(num <= PIPE_MAX_SHADER_SAMPLER_VIEWS);
 288
 289    assert(shader < PIPE_SHADER_TYPES);
 290    assert(start + num <= Elements(ctx->sampler_views[shader]));
 291
 292    /* set the new sampler views */
 293    ctx->num_sampler_views[shader] = num;
 294    for (i = 0; i < num; i++) {
 295       /* Note: we're using pipe_sampler_view_release() here to work around
 296        * a possible crash when the old view belongs to another context that
 297        * was already destroyed.
 298        */
 299       pipe_sampler_view_release(pipe, &ctx->sampler_views[shader][start + i]);
 300       pipe_sampler_view_reference(&ctx->sampler_views[shader][start + i],
 301                                   views[i]);
 302    }
 303
 304    ctx->dirty |= SWR_NEW_SAMPLER_VIEW;
 305 }
 306
 307 static void
 308 swr_sampler_view_destroy(struct pipe_context *pipe,
 309                          struct pipe_sampler_view *view)
 310 {
 311    pipe_resource_reference(&view->texture, NULL);
 312    FREE(view);
 313 }
 314
 315 static void *
 316 swr_create_vs_state(struct pipe_context *pipe,
 317                     const struct pipe_shader_state *vs)
 318 {
 319    struct swr_vertex_shader *swr_vs =
 320       (swr_vertex_shader *)CALLOC_STRUCT(swr_vertex_shader);
 321    if (!swr_vs)
 322       return NULL;
 323
 324    swr_vs->pipe.tokens = tgsi_dup_tokens(vs->tokens);
 325    swr_vs->pipe.stream_output = vs->stream_output;
 326
 327    lp_build_tgsi_info(vs->tokens, &swr_vs->info);
 328
 329    swr_vs->func = swr_compile_vs(pipe, swr_vs);
 330
 331    swr_vs->soState = {0};
 332
 333    if (swr_vs->pipe.stream_output.num_outputs) {
 334       pipe_stream_output_info *stream_output = &swr_vs->pipe.stream_output;
 335
 336       swr_vs->soState.soEnable = true;
 337       // soState.rasterizerDisable set on state dirty
 338       // soState.streamToRasterizer not used
 339
 340       for (uint32_t i = 0; i < stream_output->num_outputs; i++) {
 341          swr_vs->soState.streamMasks[stream_output->output[i].stream] |=
 342             1 << (stream_output->output[i].register_index - 1);
 343       }
 344       for (uint32_t i = 0; i < MAX_SO_STREAMS; i++) {
 345         swr_vs->soState.streamNumEntries[i] =
 346              _mm_popcnt_u32(swr_vs->soState.streamMasks[i]);
 347        }
 348    }
 349
 350    return swr_vs;
 351 }
 352
 353 static void
 354 swr_bind_vs_state(struct pipe_context *pipe, void *vs)
 355 {
 356    struct swr_context *ctx = swr_context(pipe);
 357
 358    if (ctx->vs == vs)
 359       return;
 360
 361    ctx->vs = (swr_vertex_shader *)vs;
 362    ctx->dirty |= SWR_NEW_VS;
 363 }
 364
 365 static void
 366 swr_delete_vs_state(struct pipe_context *pipe, void *vs)
 367 {
 368    struct swr_vertex_shader *swr_vs = (swr_vertex_shader *)vs;
 369    FREE((void *)swr_vs->pipe.tokens);
 370    FREE(vs);
 371 }
 372
 373 static void *
 374 swr_create_fs_state(struct pipe_context *pipe,
 375                     const struct pipe_shader_state *fs)
 376 {
 377    struct swr_fragment_shader *swr_fs = new swr_fragment_shader;
 378    if (!swr_fs)
 379       return NULL;
 380
 381    swr_fs->pipe.tokens = tgsi_dup_tokens(fs->tokens);
 382
 383    lp_build_tgsi_info(fs->tokens, &swr_fs->info);
 384
 385    return swr_fs;
 386 }
 387
 388
 389 static void
 390 swr_bind_fs_state(struct pipe_context *pipe, void *fs)
 391 {
 392    struct swr_context *ctx = swr_context(pipe);
 393
 394    if (ctx->fs == fs)
 395       return;
 396
 397    ctx->fs = (swr_fragment_shader *)fs;
 398    ctx->dirty |= SWR_NEW_FS;
 399 }
 400
 401 static void
 402 swr_delete_fs_state(struct pipe_context *pipe, void *fs)
 403 {
 404    struct swr_fragment_shader *swr_fs = (swr_fragment_shader *)fs;
 405    FREE((void *)swr_fs->pipe.tokens);
 406    delete swr_fs;
 407 }
 408
 409
 410 static void
 411 swr_set_constant_buffer(struct pipe_context *pipe,
 412                         uint shader,
 413                         uint index,
 414                         struct pipe_constant_buffer *cb)
 415 {
 416    struct swr_context *ctx = swr_context(pipe);
 417    struct pipe_resource *constants = cb ? cb->buffer : NULL;
 418
 419    assert(shader < PIPE_SHADER_TYPES);
 420    assert(index < Elements(ctx->constants[shader]));
 421
 422    /* note: reference counting */
 423    util_copy_constant_buffer(&ctx->constants[shader][index], cb);
 424
 425    if (shader == PIPE_SHADER_VERTEX || shader == PIPE_SHADER_GEOMETRY) {
 426       ctx->dirty |= SWR_NEW_VSCONSTANTS;
 427    } else if (shader == PIPE_SHADER_FRAGMENT) {
 428       ctx->dirty |= SWR_NEW_FSCONSTANTS;
 429    }
 430
 431    if (cb && cb->user_buffer) {
 432       pipe_resource_reference(&constants, NULL);
 433    }
 434 }
 435
 436
 437 static void *
 438 swr_create_vertex_elements_state(struct pipe_context *pipe,
 439                                  unsigned num_elements,
 440                                  const struct pipe_vertex_element *attribs)
 441 {
 442    struct swr_vertex_element_state *velems;
 443    assert(num_elements <= PIPE_MAX_ATTRIBS);
 444    velems = CALLOC_STRUCT(swr_vertex_element_state);
 445    if (velems) {
 446       velems->fsState.numAttribs = num_elements;
 447       for (unsigned i = 0; i < num_elements; i++) {
 448          // XXX: we should do this keyed on the VS usage info
 449
 450          const struct util_format_description *desc =
 451             util_format_description(attribs[i].src_format);
 452
 453          velems->fsState.layout[i].AlignedByteOffset = attribs[i].src_offset;
 454          velems->fsState.layout[i].Format =
 455             mesa_to_swr_format(attribs[i].src_format);
 456          velems->fsState.layout[i].StreamIndex =
 457             attribs[i].vertex_buffer_index;
 458          velems->fsState.layout[i].InstanceEnable =
 459             attribs[i].instance_divisor != 0;
 460          velems->fsState.layout[i].ComponentControl0 =
 461             desc->channel[0].type != UTIL_FORMAT_TYPE_VOID
 462             ? ComponentControl::StoreSrc
 463             : ComponentControl::Store0;
 464          velems->fsState.layout[i].ComponentControl1 =
 465             desc->channel[1].type != UTIL_FORMAT_TYPE_VOID
 466             ? ComponentControl::StoreSrc
 467             : ComponentControl::Store0;
 468          velems->fsState.layout[i].ComponentControl2 =
 469             desc->channel[2].type != UTIL_FORMAT_TYPE_VOID
 470             ? ComponentControl::StoreSrc
 471             : ComponentControl::Store0;
 472          velems->fsState.layout[i].ComponentControl3 =
 473             desc->channel[3].type != UTIL_FORMAT_TYPE_VOID
 474             ? ComponentControl::StoreSrc
 475             : ComponentControl::Store1Fp;
 476          velems->fsState.layout[i].ComponentPacking = ComponentEnable::XYZW;
 477          velems->fsState.layout[i].InstanceDataStepRate =
 478             attribs[i].instance_divisor;
 479
 480          /* Calculate the pitch of each stream */
 481          const SWR_FORMAT_INFO &swr_desc = GetFormatInfo(
 482             mesa_to_swr_format(attribs[i].src_format));
 483          velems->stream_pitch[attribs[i].vertex_buffer_index] += swr_desc.Bpp;
 484       }
 485    }
 486
 487    return velems;
 488 }
 489
 490 static void
 491 swr_bind_vertex_elements_state(struct pipe_context *pipe, void *velems)
 492 {
 493    struct swr_context *ctx = swr_context(pipe);
 494    struct swr_vertex_element_state *swr_velems =
 495       (struct swr_vertex_element_state *)velems;
 496
 497    ctx->velems = swr_velems;
 498    ctx->dirty |= SWR_NEW_VERTEX;
 499 }
 500
 501 static void
 502 swr_delete_vertex_elements_state(struct pipe_context *pipe, void *velems)
 503 {
 504    /* XXX Need to destroy fetch shader? */
 505    FREE(velems);
 506 }
 507
 508
 509 static void
 510 swr_set_vertex_buffers(struct pipe_context *pipe,
 511                        unsigned start_slot,
 512                        unsigned num_elements,
 513                        const struct pipe_vertex_buffer *buffers)
 514 {
 515    struct swr_context *ctx = swr_context(pipe);
 516
 517    assert(num_elements <= PIPE_MAX_ATTRIBS);
 518
 519    util_set_vertex_buffers_count(ctx->vertex_buffer,
 520                                  &ctx->num_vertex_buffers,
 521                                  buffers,
 522                                  start_slot,
 523                                  num_elements);
 524
 525    ctx->dirty |= SWR_NEW_VERTEX;
 526 }
 527
 528
 529 static void
 530 swr_set_index_buffer(struct pipe_context *pipe,
 531                      const struct pipe_index_buffer *ib)
 532 {
 533    struct swr_context *ctx = swr_context(pipe);
 534
 535    if (ib)
 536       memcpy(&ctx->index_buffer, ib, sizeof(ctx->index_buffer));
 537    else
 538       memset(&ctx->index_buffer, 0, sizeof(ctx->index_buffer));
 539
 540    ctx->dirty |= SWR_NEW_VERTEX;
 541 }
 542
 543 static void
 544 swr_set_polygon_stipple(struct pipe_context *pipe,
 545                         const struct pipe_poly_stipple *stipple)
 546 {
 547    struct swr_context *ctx = swr_context(pipe);
 548
 549    ctx->poly_stipple = *stipple; /* struct copy */
 550    ctx->dirty |= SWR_NEW_STIPPLE;
 551 }
 552
 553 static void
 554 swr_set_clip_state(struct pipe_context *pipe,
 555                    const struct pipe_clip_state *clip)
 556 {
 557    struct swr_context *ctx = swr_context(pipe);
 558
 559    ctx->clip = *clip;
 560    /* XXX Unimplemented, but prevents crash */
 561
 562    ctx->dirty |= SWR_NEW_CLIP;
 563 }
 564
 565
 566 static void
 567 swr_set_scissor_states(struct pipe_context *pipe,
 568                        unsigned start_slot,
 569                        unsigned num_viewports,
 570                        const struct pipe_scissor_state *scissor)
 571 {
 572    struct swr_context *ctx = swr_context(pipe);
 573
 574    ctx->scissor = *scissor;
 575    ctx->dirty |= SWR_NEW_SCISSOR;
 576 }
 577
 578 static void
 579 swr_set_viewport_states(struct pipe_context *pipe,
 580                         unsigned start_slot,
 581                         unsigned num_viewports,
 582                         const struct pipe_viewport_state *vpt)
 583 {
 584    struct swr_context *ctx = swr_context(pipe);
 585
 586    ctx->viewport = *vpt;
 587    ctx->dirty |= SWR_NEW_VIEWPORT;
 588 }
 589
 590
 591 static void
 592 swr_set_framebuffer_state(struct pipe_context *pipe,
 593                           const struct pipe_framebuffer_state *fb)
 594 {
 595    struct swr_context *ctx = swr_context(pipe);
 596
 597    boolean changed = !util_framebuffer_state_equal(&ctx->framebuffer, fb);
 598
 599    assert(fb->width <= KNOB_GUARDBAND_WIDTH);
 600    assert(fb->height <= KNOB_GUARDBAND_HEIGHT);
 601
 602    if (changed) {
 603       unsigned i;
 604       for (i = 0; i < fb->nr_cbufs; ++i)
 605          pipe_surface_reference(&ctx->framebuffer.cbufs[i], fb->cbufs[i]);
 606       for (; i < ctx->framebuffer.nr_cbufs; ++i)
 607          pipe_surface_reference(&ctx->framebuffer.cbufs[i], NULL);
 608
 609       ctx->framebuffer.nr_cbufs = fb->nr_cbufs;
 610
 611       ctx->framebuffer.width = fb->width;
 612       ctx->framebuffer.height = fb->height;
 613
 614       pipe_surface_reference(&ctx->framebuffer.zsbuf, fb->zsbuf);
 615
 616       ctx->dirty |= SWR_NEW_FRAMEBUFFER;
 617    }
 618 }
 619
 620
 621 static void
 622 swr_set_sample_mask(struct pipe_context *pipe, unsigned sample_mask)
 623 {
 624    struct swr_context *ctx = swr_context(pipe);
 625
 626    if (sample_mask != ctx->sample_mask) {
 627       ctx->sample_mask = sample_mask;
 628       ctx->dirty |= SWR_NEW_RASTERIZER;
 629    }
 630 }
 631
 632
 633 void
 634 swr_update_derived(struct swr_context *ctx,
 635                    const struct pipe_draw_info *p_draw_info)
 636 {
 637    /* Any state that requires dirty flags to be re-triggered sets this mask */
 638    /* For example, user_buffer vertex and index buffers. */
 639    unsigned post_update_dirty_flags = 0;
 640
 641    /* Render Targets */
 642    if (ctx->dirty & SWR_NEW_FRAMEBUFFER) {
 643       struct pipe_framebuffer_state *fb = &ctx->framebuffer;
 644       SWR_SURFACE_STATE *new_attachment[SWR_NUM_ATTACHMENTS] = {0};
 645       UINT i;
 646
 647       /* colorbuffer targets */
 648       if (fb->nr_cbufs)
 649          for (i = 0; i < fb->nr_cbufs; ++i)
 650             if (fb->cbufs[i]) {
 651                struct swr_resource *colorBuffer =
 652                   swr_resource(fb->cbufs[i]->texture);
 653                new_attachment[SWR_ATTACHMENT_COLOR0 + i] = &colorBuffer->swr;
 654             }
 655
 656       /* depth/stencil target */
 657       if (fb->zsbuf) {
 658          struct swr_resource *depthStencilBuffer =
 659             swr_resource(fb->zsbuf->texture);
 660          if (depthStencilBuffer->has_depth) {
 661             new_attachment[SWR_ATTACHMENT_DEPTH] = &depthStencilBuffer->swr;
 662
 663             if (depthStencilBuffer->has_stencil)
 664                new_attachment[SWR_ATTACHMENT_STENCIL] =
 665                   &depthStencilBuffer->secondary;
 666
 667          } else if (depthStencilBuffer->has_stencil)
 668             new_attachment[SWR_ATTACHMENT_STENCIL] = &depthStencilBuffer->swr;
 669       }
 670
 671       /* Make the attachment updates */
 672       swr_draw_context *pDC = &ctx->swrDC;
 673       SWR_SURFACE_STATE *renderTargets = pDC->renderTargets;
 674       for (i = 0; i < SWR_NUM_ATTACHMENTS; i++) {
 675          void *new_base = nullptr;
 676          if (new_attachment[i])
 677             new_base = new_attachment[i]->pBaseAddress;
 678
 679          /* StoreTile for changed target */
 680          if (renderTargets[i].pBaseAddress != new_base) {
 681             if (renderTargets[i].pBaseAddress) {
 682                enum SWR_TILE_STATE post_state = (new_attachment[i]
 683                   ? SWR_TILE_INVALID : SWR_TILE_RESOLVED);
 684                swr_store_render_target(ctx, i, post_state);
 685             }
 686
 687             /* Make new attachment */
 688             if (new_attachment[i])
 689                renderTargets[i] = *new_attachment[i];
 690             else
 691                if (renderTargets[i].pBaseAddress)
 692                   renderTargets[i] = {0};
 693          }
 694       }
 695    }
 696
 697    /* Raster state */
 698    if (ctx->dirty & (SWR_NEW_RASTERIZER | SWR_NEW_FRAMEBUFFER)) {
 699       pipe_rasterizer_state *rasterizer = ctx->rasterizer;
 700       pipe_framebuffer_state *fb = &ctx->framebuffer;
 701
 702       SWR_RASTSTATE *rastState = &ctx->derived.rastState;
 703       rastState->cullMode = swr_convert_cull_mode(rasterizer->cull_face);
 704       rastState->frontWinding = rasterizer->front_ccw
 705          ? SWR_FRONTWINDING_CCW
 706          : SWR_FRONTWINDING_CW;
 707       rastState->scissorEnable = rasterizer->scissor;
 708       rastState->pointSize = rasterizer->point_size > 0.0f
 709          ? rasterizer->point_size
 710          : 1.0f;
 711       rastState->lineWidth = rasterizer->line_width > 0.0f
 712          ? rasterizer->line_width
 713          : 1.0f;
 714
 715       rastState->pointParam = rasterizer->point_size_per_vertex;
 716
 717       rastState->pointSpriteEnable = rasterizer->sprite_coord_enable;
 718       rastState->pointSpriteTopOrigin =
 719          rasterizer->sprite_coord_mode == PIPE_SPRITE_COORD_UPPER_LEFT;
 720
 721       /* XXX TODO: Add multisample */
 722       rastState->msaaRastEnable = false;
 723       rastState->rastMode = SWR_MSAA_RASTMODE_OFF_PIXEL;
 724       rastState->sampleCount = SWR_MULTISAMPLE_1X;
 725       rastState->bForcedSampleCount = false;
 726
 727       bool do_offset = false;
 728       switch (rasterizer->fill_front) {
 729       case PIPE_POLYGON_MODE_FILL:
 730          do_offset = rasterizer->offset_tri;
 731          break;
 732       case PIPE_POLYGON_MODE_LINE:
 733          do_offset = rasterizer->offset_line;
 734          break;
 735       case PIPE_POLYGON_MODE_POINT:
 736          do_offset = rasterizer->offset_point;
 737          break;
 738       }
 739
 740       if (do_offset) {
 741          rastState->depthBias = rasterizer->offset_units;
 742          rastState->slopeScaledDepthBias = rasterizer->offset_scale;
 743          rastState->depthBiasClamp = rasterizer->offset_clamp;
 744       } else {
 745          rastState->depthBias = 0;
 746          rastState->slopeScaledDepthBias = 0;
 747          rastState->depthBiasClamp = 0;
 748       }
 749       struct pipe_surface *zb = fb->zsbuf;
 750       if (zb && swr_resource(zb->texture)->has_depth)
 751          rastState->depthFormat = swr_resource(zb->texture)->swr.format;
 752
 753       rastState->depthClipEnable = rasterizer->depth_clip;
 754
 755       SwrSetRastState(ctx->swrContext, rastState);
 756    }
 757
 758    /* Scissor */
 759    if (ctx->dirty & SWR_NEW_SCISSOR) {
 760       pipe_scissor_state *scissor = &ctx->scissor;
 761       BBOX bbox(scissor->miny, scissor->maxy,
 762                 scissor->minx, scissor->maxx);
 763       SwrSetScissorRects(ctx->swrContext, 1, &bbox);
 764    }
 765
 766    /* Viewport */
 767    if (ctx->dirty & (SWR_NEW_VIEWPORT | SWR_NEW_FRAMEBUFFER
 768                      | SWR_NEW_RASTERIZER)) {
 769       pipe_viewport_state *state = &ctx->viewport;
 770       pipe_framebuffer_state *fb = &ctx->framebuffer;
 771       pipe_rasterizer_state *rasterizer = ctx->rasterizer;
 772
 773       SWR_VIEWPORT *vp = &ctx->derived.vp;
 774       SWR_VIEWPORT_MATRIX *vpm = &ctx->derived.vpm;
 775
 776       vp->x = state->translate[0] - state->scale[0];
 777       vp->width = state->translate[0] + state->scale[0];
 778       vp->y = state->translate[1] - fabs(state->scale[1]);
 779       vp->height = state->translate[1] + fabs(state->scale[1]);
 780       if (rasterizer->clip_halfz == 0) {
 781          vp->minZ = state->translate[2] - state->scale[2];
 782          vp->maxZ = state->translate[2] + state->scale[2];
 783       } else {
 784          vp->minZ = state->translate[2];
 785          vp->maxZ = state->translate[2] + state->scale[2];
 786       }
 787
 788       vpm->m00 = state->scale[0];
 789       vpm->m11 = state->scale[1];
 790       vpm->m22 = state->scale[2];
 791       vpm->m30 = state->translate[0];
 792       vpm->m31 = state->translate[1];
 793       vpm->m32 = state->translate[2];
 794
 795       /* Now that the matrix is calculated, clip the view coords to screen
 796        * size.  OpenGL allows for -ve x,y in the viewport.
 797        */
 798       vp->x = std::max(vp->x, 0.0f);
 799       vp->y = std::max(vp->y, 0.0f);
 800       vp->width = std::min(vp->width, (float)fb->width);
 801       vp->height = std::min(vp->height, (float)fb->height);
 802
 803       SwrSetViewports(ctx->swrContext, 1, vp, vpm);
 804    }
 805
 806    /* Set vertex & index buffers */
 807    /* (using draw info if called by swr_draw_vbo) */
 808    if (ctx->dirty & SWR_NEW_VERTEX) {
 809       uint32_t size, pitch, max_vertex, partial_inbounds;
 810       const uint8_t *p_data;
 811
 812       /* If being called by swr_draw_vbo, copy draw details */
 813       struct pipe_draw_info info = {0};
 814       if (p_draw_info)
 815          info = *p_draw_info;
 816
 817       /* vertex buffers */
 818       SWR_VERTEX_BUFFER_STATE swrVertexBuffers[PIPE_MAX_ATTRIBS];
 819       for (UINT i = 0; i < ctx->num_vertex_buffers; i++) {
 820          pipe_vertex_buffer *vb = &ctx->vertex_buffer[i];
 821
 822          pitch = vb->stride;
 823          if (!vb->user_buffer) {
 824             /* VBO
 825              * size is based on buffer->width0 rather than info.max_index
 826              * to prevent having to validate VBO on each draw */
 827             size = vb->buffer->width0;
 828             max_vertex = size / pitch;
 829             partial_inbounds = size % pitch;
 830
 831             p_data = (const uint8_t *)swr_resource_data(vb->buffer)
 832                + vb->buffer_offset;
 833          } else {
 834             /* Client buffer
 835              * client memory is one-time use, re-trigger SWR_NEW_VERTEX to
 836              * revalidate on each draw */
 837             post_update_dirty_flags |= SWR_NEW_VERTEX;
 838
 839             if (pitch) {
 840                size = (info.max_index - info.min_index + 1) * pitch;
 841             } else {
 842                /* pitch = 0, means constant value
 843                 * set size to 1 vertex */
 844                size = ctx->velems->stream_pitch[i];
 845             }
 846
 847             max_vertex = info.max_index + 1;
 848             partial_inbounds = 0;
 849
 850             /* Copy only needed vertices to scratch space */
 851             size = AlignUp(size, 4);
 852             const void *ptr = (const uint8_t *) vb->user_buffer
 853                + info.min_index * pitch;
 854             ptr = swr_copy_to_scratch_space(
 855                ctx, &ctx->scratch->vertex_buffer, ptr, size);
 856             p_data = (const uint8_t *)ptr - info.min_index * pitch;
 857          }
 858
 859          swrVertexBuffers[i] = {0};
 860          swrVertexBuffers[i].index = i;
 861          swrVertexBuffers[i].pitch = pitch;
 862          swrVertexBuffers[i].pData = p_data;
 863          swrVertexBuffers[i].size = size;
 864          swrVertexBuffers[i].maxVertex = max_vertex;
 865          swrVertexBuffers[i].partialInboundsSize = partial_inbounds;
 866       }
 867
 868       SwrSetVertexBuffers(
 869          ctx->swrContext, ctx->num_vertex_buffers, swrVertexBuffers);
 870
 871       /* index buffer, if required (info passed in by swr_draw_vbo) */
 872       SWR_FORMAT index_type = R32_UINT; /* Default for non-indexed draws */
 873       if (info.indexed) {
 874          pipe_index_buffer *ib = &ctx->index_buffer;
 875
 876          pitch = ib->index_size ? ib->index_size : sizeof(uint32_t);
 877          index_type = swr_convert_index_type(pitch);
 878
 879          if (!ib->user_buffer) {
 880             /* VBO
 881              * size is based on buffer->width0 rather than info.count
 882              * to prevent having to validate VBO on each draw */
 883             size = ib->buffer->width0;
 884             p_data =
 885                (const uint8_t *)swr_resource_data(ib->buffer) + ib->offset;
 886          } else {
 887             /* Client buffer
 888              * client memory is one-time use, re-trigger SWR_NEW_VERTEX to
 889              * revalidate on each draw */
 890             post_update_dirty_flags |= SWR_NEW_VERTEX;
 891
 892             size = info.count * pitch;
 893             size = AlignUp(size, 4);
 894
 895             /* Copy indices to scratch space */
 896             const void *ptr = ib->user_buffer;
 897             ptr = swr_copy_to_scratch_space(
 898                ctx, &ctx->scratch->index_buffer, ptr, size);
 899             p_data = (const uint8_t *)ptr;
 900          }
 901
 902          SWR_INDEX_BUFFER_STATE swrIndexBuffer;
 903          swrIndexBuffer.format = swr_convert_index_type(ib->index_size);
 904          swrIndexBuffer.pIndices = p_data;
 905          swrIndexBuffer.size = size;
 906
 907          SwrSetIndexBuffer(ctx->swrContext, &swrIndexBuffer);
 908       }
 909
 910       struct swr_vertex_element_state *velems = ctx->velems;
 911       if (velems && velems->fsState.indexType != index_type) {
 912          velems->fsFunc = NULL;
 913          velems->fsState.indexType = index_type;
 914       }
 915    }
 916
 917    /* VertexShader */
 918    if (ctx->dirty & (SWR_NEW_VS | SWR_NEW_FRAMEBUFFER)) {
 919       SwrSetVertexFunc(ctx->swrContext, ctx->vs->func);
 920    }
 921
 922    swr_jit_key key;
 923    if (ctx->dirty & (SWR_NEW_FS | SWR_NEW_SAMPLER | SWR_NEW_SAMPLER_VIEW
 924                      | SWR_NEW_RASTERIZER | SWR_NEW_FRAMEBUFFER)) {
 925       memset(&key, 0, sizeof(key));
 926       swr_generate_fs_key(key, ctx, ctx->fs);
 927       auto search = ctx->fs->map.find(key);
 928       PFN_PIXEL_KERNEL func;
 929       if (search != ctx->fs->map.end()) {
 930          func = search->second;
 931       } else {
 932          func = swr_compile_fs(ctx, key);
 933          ctx->fs->map.insert(std::make_pair(key, func));
 934       }
 935       SWR_PS_STATE psState = {0};
 936       psState.pfnPixelShader = func;
 937       psState.killsPixel = ctx->fs->info.base.uses_kill;
 938       psState.inputCoverage = SWR_INPUT_COVERAGE_NORMAL;
 939       psState.writesODepth = ctx->fs->info.base.writes_z;
 940       psState.usesSourceDepth = ctx->fs->info.base.reads_z;
 941       psState.shadingRate = SWR_SHADING_RATE_PIXEL; // XXX
 942       psState.numRenderTargets = ctx->framebuffer.nr_cbufs;
 943       psState.posOffset = SWR_PS_POSITION_SAMPLE_NONE; // XXX msaa
 944       uint32_t barycentricsMask = 0;
 945 #if 0
 946       // when we switch to mesa-master
 947       if (ctx->fs->info.base.uses_persp_center ||
 948           ctx->fs->info.base.uses_linear_center)
 949          barycentricsMask |= SWR_BARYCENTRIC_PER_PIXEL_MASK;
 950       if (ctx->fs->info.base.uses_persp_centroid ||
 951           ctx->fs->info.base.uses_linear_centroid)
 952          barycentricsMask |= SWR_BARYCENTRIC_CENTROID_MASK;
 953       if (ctx->fs->info.base.uses_persp_sample ||
 954           ctx->fs->info.base.uses_linear_sample)
 955          barycentricsMask |= SWR_BARYCENTRIC_PER_SAMPLE_MASK;
 956 #else
 957       for (unsigned i = 0; i < ctx->fs->info.base.num_inputs; i++) {
 958          switch (ctx->fs->info.base.input_interpolate_loc[i]) {
 959          case TGSI_INTERPOLATE_LOC_CENTER:
 960             barycentricsMask |= SWR_BARYCENTRIC_PER_PIXEL_MASK;
 961             break;
 962          case TGSI_INTERPOLATE_LOC_CENTROID:
 963             barycentricsMask |= SWR_BARYCENTRIC_CENTROID_MASK;
 964             break;
 965          case TGSI_INTERPOLATE_LOC_SAMPLE:
 966             barycentricsMask |= SWR_BARYCENTRIC_PER_SAMPLE_MASK;
 967             break;
 968          }
 969       }
 970 #endif
 971       psState.barycentricsMask = barycentricsMask;
 972       psState.usesUAV = false; // XXX
 973       psState.forceEarlyZ = false;
 974       SwrSetPixelShaderState(ctx->swrContext, &psState);
 975    }
 976
 977    /* JIT sampler state */
 978    if (ctx->dirty & SWR_NEW_SAMPLER) {
 979       swr_draw_context *pDC = &ctx->swrDC;
 980
 981       for (unsigned i = 0; i < key.nr_samplers; i++) {
 982          const struct pipe_sampler_state *sampler =
 983             ctx->samplers[PIPE_SHADER_FRAGMENT][i];
 984
 985          if (sampler) {
 986             pDC->samplersFS[i].min_lod = sampler->min_lod;
 987             pDC->samplersFS[i].max_lod = sampler->max_lod;
 988             pDC->samplersFS[i].lod_bias = sampler->lod_bias;
 989             COPY_4V(pDC->samplersFS[i].border_color, sampler->border_color.f);
 990          }
 991       }
 992    }
 993
 994    /* JIT sampler view state */
 995    if (ctx->dirty & (SWR_NEW_SAMPLER_VIEW | SWR_NEW_FRAMEBUFFER)) {
 996       swr_draw_context *pDC = &ctx->swrDC;
 997
 998       for (unsigned i = 0; i < key.nr_sampler_views; i++) {
 999          struct pipe_sampler_view *view =
1000             ctx->sampler_views[PIPE_SHADER_FRAGMENT][i];
1001
1002          if (view) {
1003             struct pipe_resource *res = view->texture;
1004             struct swr_resource *swr_res = swr_resource(res);
1005             struct swr_jit_texture *jit_tex = &pDC->texturesFS[i];
1006             memset(jit_tex, 0, sizeof(*jit_tex));
1007             jit_tex->width = res->width0;
1008             jit_tex->height = res->height0;
1009             jit_tex->depth = res->depth0;
1010             jit_tex->first_level = view->u.tex.first_level;
1011             jit_tex->last_level = view->u.tex.last_level;
1012             jit_tex->base_ptr = swr_res->swr.pBaseAddress;
1013
1014             for (unsigned level = jit_tex->first_level;
1015                  level <= jit_tex->last_level;
1016                  level++) {
1017                jit_tex->row_stride[level] = swr_res->row_stride[level];
1018                jit_tex->img_stride[level] = swr_res->img_stride[level];
1019                jit_tex->mip_offsets[level] = swr_res->mip_offsets[level];
1020             }
1021          }
1022       }
1023    }
1024
1025    /* VertexShader Constants */
1026    if (ctx->dirty & SWR_NEW_VSCONSTANTS) {
1027       swr_draw_context *pDC = &ctx->swrDC;
1028
1029       for (UINT i = 0; i < PIPE_MAX_CONSTANT_BUFFERS; i++) {
1030          const pipe_constant_buffer *cb =
1031             &ctx->constants[PIPE_SHADER_VERTEX][i];
1032          pDC->num_constantsVS[i] = cb->buffer_size;
1033          if (cb->buffer)
1034             pDC->constantVS[i] =
1035                (const float *)((const BYTE *)cb->buffer + cb->buffer_offset);
1036          else {
1037             /* Need to copy these constants to scratch space */
1038             if (cb->user_buffer && cb->buffer_size) {
1039                const void *ptr =
1040                   ((const BYTE *)cb->user_buffer + cb->buffer_offset);
1041                uint32_t size = AlignUp(cb->buffer_size, 4);
1042                ptr = swr_copy_to_scratch_space(
1043                   ctx, &ctx->scratch->vs_constants, ptr, size);
1044                pDC->constantVS[i] = (const float *)ptr;
1045             }
1046          }
1047       }
1048    }
1049
1050    /* FragmentShader Constants */
1051    if (ctx->dirty & SWR_NEW_FSCONSTANTS) {
1052       swr_draw_context *pDC = &ctx->swrDC;
1053
1054       for (UINT i = 0; i < PIPE_MAX_CONSTANT_BUFFERS; i++) {
1055          const pipe_constant_buffer *cb =
1056             &ctx->constants[PIPE_SHADER_FRAGMENT][i];
1057          pDC->num_constantsFS[i] = cb->buffer_size;
1058          if (cb->buffer)
1059             pDC->constantFS[i] =
1060                (const float *)((const BYTE *)cb->buffer + cb->buffer_offset);
1061          else {
1062             /* Need to copy these constants to scratch space */
1063             if (cb->user_buffer && cb->buffer_size) {
1064                const void *ptr =
1065                   ((const BYTE *)cb->user_buffer + cb->buffer_offset);
1066                uint32_t size = AlignUp(cb->buffer_size, 4);
1067                ptr = swr_copy_to_scratch_space(
1068                   ctx, &ctx->scratch->fs_constants, ptr, size);
1069                pDC->constantFS[i] = (const float *)ptr;
1070             }
1071          }
1072       }
1073    }
1074
1075    /* Depth/stencil state */
1076    if (ctx->dirty & (SWR_NEW_DEPTH_STENCIL_ALPHA | SWR_NEW_FRAMEBUFFER)) {
1077       struct pipe_depth_state *depth = &(ctx->depth_stencil->depth);
1078       struct pipe_stencil_state *stencil = ctx->depth_stencil->stencil;
1079       SWR_DEPTH_STENCIL_STATE depthStencilState = {{0}};
1080
1081       /* XXX, incomplete.  Need to flesh out stencil & alpha test state
1082       struct pipe_stencil_state *front_stencil =
1083       ctx->depth_stencil.stencil[0];
1084       struct pipe_stencil_state *back_stencil = ctx->depth_stencil.stencil[1];
1085       struct pipe_alpha_state alpha;
1086       */
1087       if (stencil[0].enabled) {
1088          depthStencilState.stencilWriteEnable = 1;
1089          depthStencilState.stencilTestEnable = 1;
1090          depthStencilState.stencilTestFunc =
1091             swr_convert_depth_func(stencil[0].func);
1092
1093          depthStencilState.stencilPassDepthPassOp =
1094             swr_convert_stencil_op(stencil[0].zpass_op);
1095          depthStencilState.stencilPassDepthFailOp =
1096             swr_convert_stencil_op(stencil[0].zfail_op);
1097          depthStencilState.stencilFailOp =
1098             swr_convert_stencil_op(stencil[0].fail_op);
1099          depthStencilState.stencilWriteMask = stencil[0].writemask;
1100          depthStencilState.stencilTestMask = stencil[0].valuemask;
1101          depthStencilState.stencilRefValue = ctx->stencil_ref.ref_value[0];
1102       }
1103       if (stencil[1].enabled) {
1104          depthStencilState.doubleSidedStencilTestEnable = 1;
1105
1106          depthStencilState.backfaceStencilTestFunc =
1107             swr_convert_depth_func(stencil[1].func);
1108
1109          depthStencilState.backfaceStencilPassDepthPassOp =
1110             swr_convert_stencil_op(stencil[1].zpass_op);
1111          depthStencilState.backfaceStencilPassDepthFailOp =
1112             swr_convert_stencil_op(stencil[1].zfail_op);
1113          depthStencilState.backfaceStencilFailOp =
1114             swr_convert_stencil_op(stencil[1].fail_op);
1115          depthStencilState.backfaceStencilWriteMask = stencil[1].writemask;
1116          depthStencilState.backfaceStencilTestMask = stencil[1].valuemask;
1117
1118          depthStencilState.backfaceStencilRefValue =
1119             ctx->stencil_ref.ref_value[1];
1120       }
1121
1122       depthStencilState.depthTestEnable = depth->enabled;
1123       depthStencilState.depthTestFunc = swr_convert_depth_func(depth->func);
1124       depthStencilState.depthWriteEnable = depth->writemask;
1125       SwrSetDepthStencilState(ctx->swrContext, &depthStencilState);
1126    }
1127
1128    /* Blend State */
1129    if (ctx->dirty & (SWR_NEW_BLEND |
1130                      SWR_NEW_FRAMEBUFFER |
1131                      SWR_NEW_DEPTH_STENCIL_ALPHA)) {
1132       struct pipe_framebuffer_state *fb = &ctx->framebuffer;
1133
1134       SWR_BLEND_STATE blendState;
1135       memcpy(&blendState, &ctx->blend->blendState, sizeof(blendState));
1136       blendState.constantColor[0] = ctx->blend_color.color[0];
1137       blendState.constantColor[1] = ctx->blend_color.color[1];
1138       blendState.constantColor[2] = ctx->blend_color.color[2];
1139       blendState.constantColor[3] = ctx->blend_color.color[3];
1140       blendState.alphaTestReference =
1141          *((uint32_t*)&ctx->depth_stencil->alpha.ref_value);
1142
1143       // XXX MSAA
1144       blendState.sampleMask = 0;
1145       blendState.sampleCount = SWR_MULTISAMPLE_1X;
1146
1147       /* If there are no color buffers bound, disable writes on RT0
1148        * and skip loop */
1149       if (fb->nr_cbufs == 0) {
1150          blendState.renderTarget[0].writeDisableRed = 1;
1151          blendState.renderTarget[0].writeDisableGreen = 1;
1152          blendState.renderTarget[0].writeDisableBlue = 1;
1153          blendState.renderTarget[0].writeDisableAlpha = 1;
1154          SwrSetBlendFunc(ctx->swrContext, 0, NULL);
1155       }
1156       else
1157          for (int target = 0;
1158                target < std::min(SWR_NUM_RENDERTARGETS,
1159                                  PIPE_MAX_COLOR_BUFS);
1160                target++) {
1161             if (!fb->cbufs[target])
1162                continue;
1163
1164             struct swr_resource *colorBuffer =
1165                swr_resource(fb->cbufs[target]->texture);
1166
1167             BLEND_COMPILE_STATE compileState;
1168             memset(&compileState, 0, sizeof(compileState));
1169             compileState.format = colorBuffer->swr.format;
1170             memcpy(&compileState.blendState,
1171                    &ctx->blend->compileState[target],
1172                    sizeof(compileState.blendState));
1173
1174             if (compileState.blendState.blendEnable == false &&
1175                 compileState.blendState.logicOpEnable == false) {
1176                SwrSetBlendFunc(ctx->swrContext, target, NULL);
1177                continue;
1178             }
1179
1180             compileState.desc.alphaTestEnable =
1181                ctx->depth_stencil->alpha.enabled;
1182             compileState.desc.independentAlphaBlendEnable =
1183                ctx->blend->pipe.independent_blend_enable;
1184             compileState.desc.alphaToCoverageEnable =
1185                ctx->blend->pipe.alpha_to_coverage;
1186             compileState.desc.sampleMaskEnable = 0; // XXX
1187             compileState.desc.numSamples = 1; // XXX
1188
1189             compileState.alphaTestFunction =
1190                swr_convert_depth_func(ctx->depth_stencil->alpha.func);
1191             compileState.alphaTestFormat = ALPHA_TEST_FLOAT32; // xxx
1192
1193             PFN_BLEND_JIT_FUNC func = NULL;
1194             auto search = ctx->blendJIT->find(compileState);
1195             if (search != ctx->blendJIT->end()) {
1196                func = search->second;
1197             } else {
1198                HANDLE hJitMgr = swr_screen(ctx->pipe.screen)->hJitMgr;
1199                func = JitCompileBlend(hJitMgr, compileState);
1200                debug_printf("BLEND shader %p\n", func);
1201                assert(func && "Error: BlendShader = NULL");
1202
1203                ctx->blendJIT->insert(std::make_pair(compileState, func));
1204             }
1205             SwrSetBlendFunc(ctx->swrContext, target, func);
1206          }
1207
1208       SwrSetBlendState(ctx->swrContext, &blendState);
1209    }
1210
1211    if (ctx->dirty & SWR_NEW_STIPPLE) {
1212       /* XXX What to do with this one??? SWR doesn't stipple */
1213    }
1214
1215    if (ctx->dirty & (SWR_NEW_VS | SWR_NEW_SO | SWR_NEW_RASTERIZER)) {
1216       ctx->vs->soState.rasterizerDisable =
1217          ctx->rasterizer->rasterizer_discard;
1218       SwrSetSoState(ctx->swrContext, &ctx->vs->soState);
1219
1220       pipe_stream_output_info *stream_output = &ctx->vs->pipe.stream_output;
1221
1222       for (uint32_t i = 0; i < ctx->num_so_targets; i++) {
1223          SWR_STREAMOUT_BUFFER buffer = {0};
1224          if (!ctx->so_targets[i])
1225             continue;
1226          buffer.enable = true;
1227          buffer.pBuffer =
1228             (uint32_t *)swr_resource_data(ctx->so_targets[i]->buffer);
1229          buffer.bufferSize = ctx->so_targets[i]->buffer_size >> 2;
1230          buffer.pitch = stream_output->stride[i];
1231          buffer.streamOffset = ctx->so_targets[i]->buffer_offset >> 2;
1232
1233          SwrSetSoBuffers(ctx->swrContext, &buffer, i);
1234       }
1235    }
1236
1237    uint32_t linkage = ctx->vs->linkageMask;
1238    if (ctx->rasterizer->sprite_coord_enable)
1239       linkage |= (1 << ctx->vs->info.base.num_outputs);
1240
1241    SwrSetLinkage(ctx->swrContext, linkage, NULL);
1242
1243    // set up frontend state
1244    SWR_FRONTEND_STATE feState = {0};
1245    SwrSetFrontendState(ctx->swrContext, &feState);
1246
1247    // set up backend state
1248    SWR_BACKEND_STATE backendState = {0};
1249    backendState.numAttributes = 1;
1250    backendState.numComponents[0] = 4;
1251    backendState.constantInterpolationMask = ctx->fs->constantMask;
1252    backendState.pointSpriteTexCoordMask = ctx->fs->pointSpriteMask;
1253
1254    SwrSetBackendState(ctx->swrContext, &backendState);
1255
1256    ctx->dirty = post_update_dirty_flags;
1257 }
1258
1259 static struct pipe_stream_output_target *
1260 swr_create_so_target(struct pipe_context *pipe,
1261                      struct pipe_resource *buffer,
1262                      unsigned buffer_offset,
1263                      unsigned buffer_size)
1264 {
1265    struct pipe_stream_output_target *target;
1266
1267    target = CALLOC_STRUCT(pipe_stream_output_target);
1268    if (!target)
1269       return NULL;
1270
1271    target->context = pipe;
1272    target->reference.count = 1;
1273    pipe_resource_reference(&target->buffer, buffer);
1274    target->buffer_offset = buffer_offset;
1275    target->buffer_size = buffer_size;
1276    return target;
1277 }
1278
1279 static void
1280 swr_destroy_so_target(struct pipe_context *pipe,
1281                       struct pipe_stream_output_target *target)
1282 {
1283    pipe_resource_reference(&target->buffer, NULL);
1284    FREE(target);
1285 }
1286
1287 static void
1288 swr_set_so_targets(struct pipe_context *pipe,
1289                    unsigned num_targets,
1290                    struct pipe_stream_output_target **targets,
1291                    const unsigned *offsets)
1292 {
1293    struct swr_context *swr = swr_context(pipe);
1294    uint32_t i;
1295
1296    assert(num_targets < MAX_SO_STREAMS);
1297
1298    for (i = 0; i < num_targets; i++) {
1299       pipe_so_target_reference(
1300          (struct pipe_stream_output_target **)&swr->so_targets[i],
1301          targets[i]);
1302    }
1303
1304    for (/* fall-through */; i < swr->num_so_targets; i++) {
1305       pipe_so_target_reference(
1306          (struct pipe_stream_output_target **)&swr->so_targets[i], NULL);
1307    }
1308
1309    swr->num_so_targets = num_targets;
1310
1311    swr->dirty = SWR_NEW_SO;
1312 }
1313
1314
1315 void
1316 swr_state_init(struct pipe_context *pipe)
1317 {
1318    pipe->create_blend_state = swr_create_blend_state;
1319    pipe->bind_blend_state = swr_bind_blend_state;
1320    pipe->delete_blend_state = swr_delete_blend_state;
1321
1322    pipe->create_depth_stencil_alpha_state = swr_create_depth_stencil_state;
1323    pipe->bind_depth_stencil_alpha_state = swr_bind_depth_stencil_state;
1324    pipe->delete_depth_stencil_alpha_state = swr_delete_depth_stencil_state;
1325
1326    pipe->create_rasterizer_state = swr_create_rasterizer_state;
1327    pipe->bind_rasterizer_state = swr_bind_rasterizer_state;
1328    pipe->delete_rasterizer_state = swr_delete_rasterizer_state;
1329
1330    pipe->create_sampler_state = swr_create_sampler_state;
1331    pipe->bind_sampler_states = swr_bind_sampler_states;
1332    pipe->delete_sampler_state = swr_delete_sampler_state;
1333
1334    pipe->create_sampler_view = swr_create_sampler_view;
1335    pipe->set_sampler_views = swr_set_sampler_views;
1336    pipe->sampler_view_destroy = swr_sampler_view_destroy;
1337
1338    pipe->create_vs_state = swr_create_vs_state;
1339    pipe->bind_vs_state = swr_bind_vs_state;
1340    pipe->delete_vs_state = swr_delete_vs_state;
1341
1342    pipe->create_fs_state = swr_create_fs_state;
1343    pipe->bind_fs_state = swr_bind_fs_state;
1344    pipe->delete_fs_state = swr_delete_fs_state;
1345
1346    pipe->set_constant_buffer = swr_set_constant_buffer;
1347
1348    pipe->create_vertex_elements_state = swr_create_vertex_elements_state;
1349    pipe->bind_vertex_elements_state = swr_bind_vertex_elements_state;
1350    pipe->delete_vertex_elements_state = swr_delete_vertex_elements_state;
1351
1352    pipe->set_vertex_buffers = swr_set_vertex_buffers;
1353    pipe->set_index_buffer = swr_set_index_buffer;
1354
1355    pipe->set_polygon_stipple = swr_set_polygon_stipple;
1356    pipe->set_clip_state = swr_set_clip_state;
1357    pipe->set_scissor_states = swr_set_scissor_states;
1358    pipe->set_viewport_states = swr_set_viewport_states;
1359
1360    pipe->set_framebuffer_state = swr_set_framebuffer_state;
1361
1362    pipe->set_blend_color = swr_set_blend_color;
1363    pipe->set_stencil_ref = swr_set_stencil_ref;
1364
1365    pipe->set_sample_mask = swr_set_sample_mask;
1366
1367    pipe->create_stream_output_target = swr_create_so_target;
1368    pipe->stream_output_target_destroy = swr_destroy_so_target;
1369    pipe->set_stream_output_targets = swr_set_so_targets;
1370 }