src/gallium/drivers/svga/svga_context.c

   1 /**********************************************************
   2  * Copyright 2008-2009 VMware, Inc.  All rights reserved.
   3  *
   4  * Permission is hereby granted, free of charge, to any person
   5  * obtaining a copy of this software and associated documentation
   6  * files (the "Software"), to deal in the Software without
   7  * restriction, including without limitation the rights to use, copy,
   8  * modify, merge, publish, distribute, sublicense, and/or sell copies
   9  * of the Software, and to permit persons to whom the Software is
  10  * furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice shall be
  13  * included in all copies or substantial portions of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  19  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  20  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  21  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  22  * SOFTWARE.
  23  *
  24  **********************************************************/
  25
  26 #include "svga_cmd.h"
  27
  28 #include "pipe/p_defines.h"
  29 #include "util/u_inlines.h"
  30 #include "pipe/p_screen.h"
  31 #include "util/u_memory.h"
  32 #include "util/u_bitmask.h"
  33 #include "util/u_upload_mgr.h"
  34
  35 #include "svga_context.h"
  36 #include "svga_screen.h"
  37 #include "svga_surface.h"
  38 #include "svga_resource_texture.h"
  39 #include "svga_resource_buffer.h"
  40 #include "svga_resource.h"
  41 #include "svga_winsys.h"
  42 #include "svga_swtnl.h"
  43 #include "svga_draw.h"
  44 #include "svga_debug.h"
  45 #include "svga_state.h"
  46 #include "svga_winsys.h"
  47
  48 #define CONST0_UPLOAD_DEFAULT_SIZE 65536
  49
  50 DEBUG_GET_ONCE_BOOL_OPTION(no_swtnl, "SVGA_NO_SWTNL", FALSE)
  51 DEBUG_GET_ONCE_BOOL_OPTION(force_swtnl, "SVGA_FORCE_SWTNL", FALSE);
  52 DEBUG_GET_ONCE_BOOL_OPTION(use_min_mipmap, "SVGA_USE_MIN_MIPMAP", FALSE);
  53 DEBUG_GET_ONCE_BOOL_OPTION(no_line_width, "SVGA_NO_LINE_WIDTH", FALSE);
  54 DEBUG_GET_ONCE_BOOL_OPTION(force_hw_line_stipple, "SVGA_FORCE_HW_LINE_STIPPLE", FALSE);
  55
  56
  57 static void
  58 svga_destroy(struct pipe_context *pipe)
  59 {
  60    struct svga_context *svga = svga_context(pipe);
  61    unsigned shader, i;
  62
  63    /* free any alternate rasterizer states used for point sprite */
  64    for (i = 0; i < ARRAY_SIZE(svga->rasterizer_no_cull); i++) {
  65       if (svga->rasterizer_no_cull[i]) {
  66          pipe->delete_rasterizer_state(pipe, svga->rasterizer_no_cull[i]);
  67       }
  68    }
  69
  70    /* free depthstencil_disable state */
  71    if (svga->depthstencil_disable) {
  72       pipe->delete_depth_stencil_alpha_state(pipe, svga->depthstencil_disable);
  73    }
  74
  75    /* free HW constant buffers */
  76    for (shader = 0; shader < ARRAY_SIZE(svga->state.hw_draw.constbuf); shader++) {
  77       pipe_resource_reference(&svga->state.hw_draw.constbuf[shader], NULL);
  78    }
  79
  80    pipe->delete_blend_state(pipe, svga->noop_blend);
  81
  82    /* free query gb object */
  83    if (svga->gb_query) {
  84       pipe->destroy_query(pipe, NULL);
  85       svga->gb_query = NULL;
  86    }
  87
  88    util_blitter_destroy(svga->blitter);
  89
  90    svga_cleanup_sampler_state(svga);
  91    svga_cleanup_framebuffer(svga);
  92    svga_cleanup_tss_binding(svga);
  93    svga_cleanup_vertex_state(svga);
  94
  95    svga_destroy_swtnl(svga);
  96    svga_hwtnl_destroy(svga->hwtnl);
  97
  98    svga->swc->destroy(svga->swc);
  99
 100    util_bitmask_destroy(svga->blend_object_id_bm);
 101    util_bitmask_destroy(svga->ds_object_id_bm);
 102    util_bitmask_destroy(svga->input_element_object_id_bm);
 103    util_bitmask_destroy(svga->rast_object_id_bm);
 104    util_bitmask_destroy(svga->sampler_object_id_bm);
 105    util_bitmask_destroy(svga->sampler_view_id_bm);
 106    util_bitmask_destroy(svga->shader_id_bm);
 107    util_bitmask_destroy(svga->surface_view_id_bm);
 108    util_bitmask_destroy(svga->stream_output_id_bm);
 109    util_bitmask_destroy(svga->query_id_bm);
 110    u_upload_destroy(svga->const0_upload);
 111    u_upload_destroy(svga->pipe.stream_uploader);
 112    u_upload_destroy(svga->pipe.const_uploader);
 113    svga_texture_transfer_map_upload_destroy(svga);
 114
 115    /* free user's constant buffers */
 116    for (shader = 0; shader < PIPE_SHADER_TYPES; ++shader) {
 117       for (i = 0; i < ARRAY_SIZE(svga->curr.constbufs[shader]); ++i) {
 118          pipe_resource_reference(&svga->curr.constbufs[shader][i].buffer, NULL);
 119       }
 120    }
 121
 122    FREE(svga);
 123 }
 124
 125
 126 struct pipe_context *
 127 svga_context_create(struct pipe_screen *screen, void *priv, unsigned flags)
 128 {
 129    struct svga_screen *svgascreen = svga_screen(screen);
 130    struct svga_context *svga = NULL;
 131    enum pipe_error ret;
 132
 133    SVGA_STATS_TIME_PUSH(svgascreen->sws, SVGA_STATS_TIME_CREATECONTEXT);
 134
 135    svga = CALLOC_STRUCT(svga_context);
 136    if (!svga)
 137       goto done;
 138
 139    LIST_INITHEAD(&svga->dirty_buffers);
 140
 141    svga->pipe.screen = screen;
 142    svga->pipe.priv = priv;
 143    svga->pipe.destroy = svga_destroy;
 144    svga->pipe.stream_uploader = u_upload_create(&svga->pipe, 1024 * 1024,
 145                                                 PIPE_BIND_VERTEX_BUFFER |
 146                                                 PIPE_BIND_INDEX_BUFFER,
 147                                                 PIPE_USAGE_STREAM, 0);
 148    if (!svga->pipe.stream_uploader)
 149       goto cleanup;
 150
 151    svga->pipe.const_uploader = u_upload_create(&svga->pipe, 128 * 1024,
 152                                                PIPE_BIND_CONSTANT_BUFFER,
 153                                                PIPE_USAGE_STREAM, 0);
 154    if (!svga->pipe.const_uploader)
 155       goto cleanup;
 156
 157    svga->swc = svgascreen->sws->context_create(svgascreen->sws);
 158    if (!svga->swc)
 159       goto cleanup;
 160
 161    svga_init_resource_functions(svga);
 162    svga_init_blend_functions(svga);
 163    svga_init_blit_functions(svga);
 164    svga_init_depth_stencil_functions(svga);
 165    svga_init_draw_functions(svga);
 166    svga_init_flush_functions(svga);
 167    svga_init_misc_functions(svga);
 168    svga_init_rasterizer_functions(svga);
 169    svga_init_sampler_functions(svga);
 170    svga_init_fs_functions(svga);
 171    svga_init_vs_functions(svga);
 172    svga_init_gs_functions(svga);
 173    svga_init_vertex_functions(svga);
 174    svga_init_constbuffer_functions(svga);
 175    svga_init_query_functions(svga);
 176    svga_init_surface_functions(svga);
 177    svga_init_stream_output_functions(svga);
 178    svga_init_clear_functions(svga);
 179
 180    /* init misc state */
 181    svga->curr.sample_mask = ~0;
 182
 183    /* debug */
 184    svga->debug.no_swtnl = debug_get_option_no_swtnl();
 185    svga->debug.force_swtnl = debug_get_option_force_swtnl();
 186    svga->debug.use_min_mipmap = debug_get_option_use_min_mipmap();
 187    svga->debug.no_line_width = debug_get_option_no_line_width();
 188    svga->debug.force_hw_line_stipple = debug_get_option_force_hw_line_stipple();
 189
 190    if (!(svga->blend_object_id_bm = util_bitmask_create()))
 191       goto cleanup;
 192
 193    if (!(svga->ds_object_id_bm = util_bitmask_create()))
 194       goto cleanup;
 195
 196    if (!(svga->input_element_object_id_bm = util_bitmask_create()))
 197       goto cleanup;
 198
 199    if (!(svga->rast_object_id_bm = util_bitmask_create()))
 200       goto cleanup;
 201
 202    if (!(svga->sampler_object_id_bm = util_bitmask_create()))
 203       goto cleanup;
 204
 205    if (!(svga->sampler_view_id_bm = util_bitmask_create()))
 206       goto cleanup;
 207
 208    if (!(svga->shader_id_bm = util_bitmask_create()))
 209       goto cleanup;
 210
 211    if (!(svga->surface_view_id_bm = util_bitmask_create()))
 212       goto cleanup;
 213
 214    if (!(svga->stream_output_id_bm = util_bitmask_create()))
 215       goto cleanup;
 216
 217    if (!(svga->query_id_bm = util_bitmask_create()))
 218       goto cleanup;
 219
 220    svga->hwtnl = svga_hwtnl_create(svga);
 221    if (svga->hwtnl == NULL)
 222       goto cleanup;
 223
 224    if (!svga_init_swtnl(svga))
 225       goto cleanup;
 226
 227    ret = svga_emit_initial_state(svga);
 228    if (ret != PIPE_OK)
 229       goto cleanup;
 230
 231    svga->const0_upload = u_upload_create(&svga->pipe,
 232                                          CONST0_UPLOAD_DEFAULT_SIZE,
 233                                          PIPE_BIND_CONSTANT_BUFFER,
 234                                          PIPE_USAGE_STREAM, 0);
 235    if (!svga->const0_upload)
 236       goto cleanup;
 237
 238    if (!svga_texture_transfer_map_upload_create(svga))
 239       goto cleanup;
 240
 241    /* Avoid shortcircuiting state with initial value of zero.
 242     */
 243    memset(&svga->state.hw_clear, 0xcd, sizeof(svga->state.hw_clear));
 244    memset(&svga->state.hw_clear.framebuffer, 0x0,
 245           sizeof(svga->state.hw_clear.framebuffer));
 246    svga->state.hw_clear.num_rendertargets = 0;
 247    svga->state.hw_clear.dsv = NULL;
 248
 249    memset(&svga->state.hw_draw, 0xcd, sizeof(svga->state.hw_draw));
 250    memset(&svga->state.hw_draw.views, 0x0, sizeof(svga->state.hw_draw.views));
 251    memset(&svga->state.hw_draw.num_samplers, 0,
 252       sizeof(svga->state.hw_draw.num_samplers));
 253    memset(&svga->state.hw_draw.num_sampler_views, 0,
 254       sizeof(svga->state.hw_draw.num_sampler_views));
 255    memset(svga->state.hw_draw.sampler_views, 0,
 256           sizeof(svga->state.hw_draw.sampler_views));
 257    svga->state.hw_draw.num_views = 0;
 258    svga->state.hw_draw.num_backed_views = 0;
 259    svga->state.hw_draw.rasterizer_discard = FALSE;
 260
 261    /* Initialize the shader pointers */
 262    svga->state.hw_draw.vs = NULL;
 263    svga->state.hw_draw.gs = NULL;
 264    svga->state.hw_draw.fs = NULL;
 265
 266    /* Initialize the currently bound buffer resources */
 267    memset(svga->state.hw_draw.constbuf, 0,
 268           sizeof(svga->state.hw_draw.constbuf));
 269    memset(svga->state.hw_draw.default_constbuf_size, 0,
 270           sizeof(svga->state.hw_draw.default_constbuf_size));
 271    memset(svga->state.hw_draw.enabled_constbufs, 0,
 272           sizeof(svga->state.hw_draw.enabled_constbufs));
 273    svga->state.hw_draw.ib = NULL;
 274    svga->state.hw_draw.num_vbuffers = 0;
 275    memset(svga->state.hw_draw.vbuffers, 0,
 276           sizeof(svga->state.hw_draw.vbuffers));
 277    svga->state.hw_draw.const0_buffer = NULL;
 278    svga->state.hw_draw.const0_handle = NULL;
 279
 280    /* Create a no-operation blend state which we will bind whenever the
 281     * requested blend state is impossible (e.g. due to having an integer
 282     * render target attached).
 283     *
 284     * XXX: We will probably actually need 16 of these, one for each possible
 285     * RGBA color mask (4 bits).  Then, we would bind the one with a color mask
 286     * matching the blend state it is replacing.
 287     */
 288    {
 289       struct pipe_blend_state noop_tmpl = {0};
 290       unsigned i;
 291
 292       for (i = 0; i < PIPE_MAX_COLOR_BUFS; ++i) {
 293          // Set the color mask to all-ones.  Later this may change.
 294          noop_tmpl.rt[i].colormask = PIPE_MASK_RGBA;
 295       }
 296       svga->noop_blend = svga->pipe.create_blend_state(&svga->pipe, &noop_tmpl);
 297    }
 298
 299    svga->dirty = ~0;
 300    svga->pred.query_id = SVGA3D_INVALID_ID;
 301    svga->disable_rasterizer = FALSE;
 302
 303    goto done;
 304
 305 cleanup:
 306    svga_destroy_swtnl(svga);
 307
 308    if (svga->const0_upload)
 309       u_upload_destroy(svga->const0_upload);
 310    if (svga->pipe.const_uploader)
 311       u_upload_destroy(svga->pipe.const_uploader);
 312    if (svga->pipe.stream_uploader)
 313       u_upload_destroy(svga->pipe.stream_uploader);
 314    svga_texture_transfer_map_upload_destroy(svga);
 315    if (svga->hwtnl)
 316       svga_hwtnl_destroy(svga->hwtnl);
 317    if (svga->swc)
 318       svga->swc->destroy(svga->swc);
 319    util_bitmask_destroy(svga->blend_object_id_bm);
 320    util_bitmask_destroy(svga->ds_object_id_bm);
 321    util_bitmask_destroy(svga->input_element_object_id_bm);
 322    util_bitmask_destroy(svga->rast_object_id_bm);
 323    util_bitmask_destroy(svga->sampler_object_id_bm);
 324    util_bitmask_destroy(svga->sampler_view_id_bm);
 325    util_bitmask_destroy(svga->shader_id_bm);
 326    util_bitmask_destroy(svga->surface_view_id_bm);
 327    util_bitmask_destroy(svga->stream_output_id_bm);
 328    util_bitmask_destroy(svga->query_id_bm);
 329    FREE(svga);
 330    svga = NULL;
 331
 332 done:
 333    SVGA_STATS_TIME_POP(svgascreen->sws);
 334    return svga ? &svga->pipe:NULL;
 335 }
 336
 337
 338 void
 339 svga_context_flush(struct svga_context *svga,
 340                    struct pipe_fence_handle **pfence)
 341 {
 342    struct svga_screen *svgascreen = svga_screen(svga->pipe.screen);
 343    struct pipe_fence_handle *fence = NULL;
 344    uint64_t t0;
 345
 346    SVGA_STATS_TIME_PUSH(svga_sws(svga), SVGA_STATS_TIME_CONTEXTFLUSH);
 347
 348    svga->curr.nr_fbs = 0;
 349
 350    /* Unmap the 0th/default constant buffer.  The u_upload_unmap() function
 351     * will call pipe_context::transfer_flush_region() to indicate the
 352     * region of the buffer which was modified (and needs to be uploaded).
 353     */
 354    if (svga->state.hw_draw.const0_handle) {
 355       assert(svga->state.hw_draw.const0_buffer);
 356       u_upload_unmap(svga->const0_upload);
 357       pipe_resource_reference(&svga->state.hw_draw.const0_buffer, NULL);
 358       svga->state.hw_draw.const0_handle = NULL;
 359    }
 360
 361    /* Ensure that texture dma uploads are processed
 362     * before submitting commands.
 363     */
 364    svga_context_flush_buffers(svga);
 365
 366    svga->hud.command_buffer_size +=
 367       svga->swc->get_command_buffer_size(svga->swc);
 368
 369    /* Flush pending commands to hardware:
 370     */
 371    t0 = svga_get_time(svga);
 372    svga->swc->flush(svga->swc, &fence);
 373    svga->hud.flush_time += (svga_get_time(svga) - t0);
 374
 375    svga->hud.num_flushes++;
 376
 377    svga_screen_cache_flush(svgascreen, svga, fence);
 378
 379    SVGA3D_ResetLastCommand(svga->swc);
 380
 381    /* To force the re-emission of rendertargets and texture sampler bindings on
 382     * the next command buffer.
 383     */
 384    svga->rebind.flags.rendertargets = TRUE;
 385    svga->rebind.flags.texture_samplers = TRUE;
 386
 387    if (svga_have_gb_objects(svga)) {
 388
 389       svga->rebind.flags.constbufs = TRUE;
 390       svga->rebind.flags.vs = TRUE;
 391       svga->rebind.flags.fs = TRUE;
 392       svga->rebind.flags.gs = TRUE;
 393
 394       if (svga_need_to_rebind_resources(svga)) {
 395          svga->rebind.flags.query = TRUE;
 396       }
 397    }
 398
 399    if (SVGA_DEBUG & DEBUG_SYNC) {
 400       if (fence)
 401          svga->pipe.screen->fence_finish(svga->pipe.screen, NULL, fence,
 402                                           PIPE_TIMEOUT_INFINITE);
 403    }
 404
 405    if (pfence)
 406       svgascreen->sws->fence_reference(svgascreen->sws, pfence, fence);
 407
 408    svgascreen->sws->fence_reference(svgascreen->sws, &fence, NULL);
 409
 410    SVGA_STATS_TIME_POP(svga_sws(svga));
 411 }
 412
 413
 414 /**
 415  * Flush pending commands and wait for completion with a fence.
 416  */
 417 void
 418 svga_context_finish(struct svga_context *svga)
 419 {
 420    struct pipe_screen *screen = svga->pipe.screen;
 421    struct pipe_fence_handle *fence = NULL;
 422
 423    SVGA_STATS_TIME_PUSH(svga_sws(svga), SVGA_STATS_TIME_CONTEXTFINISH);
 424
 425    svga_context_flush(svga, &fence);
 426    screen->fence_finish(screen, NULL, fence, PIPE_TIMEOUT_INFINITE);
 427    screen->fence_reference(screen, &fence, NULL);
 428
 429    SVGA_STATS_TIME_POP(svga_sws(svga));
 430 }
 431
 432
 433 /**
 434  * Emit pending drawing commands to the command buffer.
 435  * If the command buffer overflows, we flush it and retry.
 436  * \sa svga_hwtnl_flush()
 437  */
 438 void
 439 svga_hwtnl_flush_retry(struct svga_context *svga)
 440 {
 441    enum pipe_error ret = PIPE_OK;
 442
 443    ret = svga_hwtnl_flush(svga->hwtnl);
 444    if (ret == PIPE_ERROR_OUT_OF_MEMORY) {
 445       svga_context_flush(svga, NULL);
 446       ret = svga_hwtnl_flush(svga->hwtnl);
 447    }
 448
 449    assert(ret == PIPE_OK);
 450 }
 451
 452
 453 /**
 454  * Flush the primitive queue if this buffer is referred.
 455  *
 456  * Otherwise DMA commands on the referred buffer will be emitted too late.
 457  */
 458 void
 459 svga_hwtnl_flush_buffer(struct svga_context *svga,
 460                         struct pipe_resource *buffer)
 461 {
 462    if (svga_hwtnl_is_buffer_referred(svga->hwtnl, buffer)) {
 463       svga_hwtnl_flush_retry(svga);
 464    }
 465 }
 466
 467
 468 /**
 469  * Emit all operations pending on host surfaces.
 470  */
 471 void
 472 svga_surfaces_flush(struct svga_context *svga)
 473 {
 474    SVGA_STATS_TIME_PUSH(svga_sws(svga), SVGA_STATS_TIME_SURFACEFLUSH);
 475
 476    /* Emit buffered drawing commands.
 477     */
 478    svga_hwtnl_flush_retry(svga);
 479
 480    /* Emit back-copy from render target views to textures.
 481     */
 482    svga_propagate_rendertargets(svga);
 483
 484    SVGA_STATS_TIME_POP(svga_sws(svga));
 485 }
 486
 487
 488 struct svga_winsys_context *
 489 svga_winsys_context(struct pipe_context *pipe)
 490 {
 491    return svga_context(pipe)->swc;
 492 }