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    u_upload_disable_persistent(svga->pipe.stream_uploader);
 152
 153    svga->pipe.const_uploader = u_upload_create(&svga->pipe, 128 * 1024,
 154                                                PIPE_BIND_CONSTANT_BUFFER,
 155                                                PIPE_USAGE_STREAM, 0);
 156    if (!svga->pipe.const_uploader)
 157       goto cleanup;
 158
 159    u_upload_disable_persistent(svga->pipe.const_uploader);
 160
 161    svga->swc = svgascreen->sws->context_create(svgascreen->sws);
 162    if (!svga->swc)
 163       goto cleanup;
 164
 165    svga_init_resource_functions(svga);
 166    svga_init_blend_functions(svga);
 167    svga_init_blit_functions(svga);
 168    svga_init_depth_stencil_functions(svga);
 169    svga_init_draw_functions(svga);
 170    svga_init_flush_functions(svga);
 171    svga_init_misc_functions(svga);
 172    svga_init_rasterizer_functions(svga);
 173    svga_init_sampler_functions(svga);
 174    svga_init_fs_functions(svga);
 175    svga_init_vs_functions(svga);
 176    svga_init_gs_functions(svga);
 177    svga_init_vertex_functions(svga);
 178    svga_init_constbuffer_functions(svga);
 179    svga_init_query_functions(svga);
 180    svga_init_surface_functions(svga);
 181    svga_init_stream_output_functions(svga);
 182    svga_init_clear_functions(svga);
 183
 184    /* init misc state */
 185    svga->curr.sample_mask = ~0;
 186
 187    /* debug */
 188    svga->debug.no_swtnl = debug_get_option_no_swtnl();
 189    svga->debug.force_swtnl = debug_get_option_force_swtnl();
 190    svga->debug.use_min_mipmap = debug_get_option_use_min_mipmap();
 191    svga->debug.no_line_width = debug_get_option_no_line_width();
 192    svga->debug.force_hw_line_stipple = debug_get_option_force_hw_line_stipple();
 193
 194    if (!(svga->blend_object_id_bm = util_bitmask_create()))
 195       goto cleanup;
 196
 197    if (!(svga->ds_object_id_bm = util_bitmask_create()))
 198       goto cleanup;
 199
 200    if (!(svga->input_element_object_id_bm = util_bitmask_create()))
 201       goto cleanup;
 202
 203    if (!(svga->rast_object_id_bm = util_bitmask_create()))
 204       goto cleanup;
 205
 206    if (!(svga->sampler_object_id_bm = util_bitmask_create()))
 207       goto cleanup;
 208
 209    if (!(svga->sampler_view_id_bm = util_bitmask_create()))
 210       goto cleanup;
 211
 212    if (!(svga->shader_id_bm = util_bitmask_create()))
 213       goto cleanup;
 214
 215    if (!(svga->surface_view_id_bm = util_bitmask_create()))
 216       goto cleanup;
 217
 218    if (!(svga->stream_output_id_bm = util_bitmask_create()))
 219       goto cleanup;
 220
 221    if (!(svga->query_id_bm = util_bitmask_create()))
 222       goto cleanup;
 223
 224    svga->hwtnl = svga_hwtnl_create(svga);
 225    if (svga->hwtnl == NULL)
 226       goto cleanup;
 227
 228    if (!svga_init_swtnl(svga))
 229       goto cleanup;
 230
 231    ret = svga_emit_initial_state(svga);
 232    if (ret != PIPE_OK)
 233       goto cleanup;
 234
 235    svga->const0_upload = u_upload_create(&svga->pipe,
 236                                          CONST0_UPLOAD_DEFAULT_SIZE,
 237                                          PIPE_BIND_CONSTANT_BUFFER |
 238                                          PIPE_BIND_CUSTOM,
 239                                          PIPE_USAGE_STREAM, 0);
 240    if (!svga->const0_upload)
 241       goto cleanup;
 242
 243    u_upload_disable_persistent(svga->const0_upload);
 244
 245    if (!svga_texture_transfer_map_upload_create(svga))
 246       goto cleanup;
 247
 248    /* Avoid shortcircuiting state with initial value of zero.
 249     */
 250    memset(&svga->state.hw_clear, 0xcd, sizeof(svga->state.hw_clear));
 251    memset(&svga->state.hw_clear.framebuffer, 0x0,
 252           sizeof(svga->state.hw_clear.framebuffer));
 253    svga->state.hw_clear.num_rendertargets = 0;
 254    svga->state.hw_clear.dsv = NULL;
 255
 256    memset(&svga->state.hw_draw, 0xcd, sizeof(svga->state.hw_draw));
 257    memset(&svga->state.hw_draw.views, 0x0, sizeof(svga->state.hw_draw.views));
 258    memset(&svga->state.hw_draw.num_samplers, 0,
 259       sizeof(svga->state.hw_draw.num_samplers));
 260    memset(&svga->state.hw_draw.num_sampler_views, 0,
 261       sizeof(svga->state.hw_draw.num_sampler_views));
 262    memset(svga->state.hw_draw.sampler_views, 0,
 263           sizeof(svga->state.hw_draw.sampler_views));
 264    svga->state.hw_draw.num_views = 0;
 265    svga->state.hw_draw.num_backed_views = 0;
 266    svga->state.hw_draw.rasterizer_discard = FALSE;
 267
 268    /* Initialize the shader pointers */
 269    svga->state.hw_draw.vs = NULL;
 270    svga->state.hw_draw.gs = NULL;
 271    svga->state.hw_draw.fs = NULL;
 272
 273    /* Initialize the currently bound buffer resources */
 274    memset(svga->state.hw_draw.constbuf, 0,
 275           sizeof(svga->state.hw_draw.constbuf));
 276    memset(svga->state.hw_draw.default_constbuf_size, 0,
 277           sizeof(svga->state.hw_draw.default_constbuf_size));
 278    memset(svga->state.hw_draw.enabled_constbufs, 0,
 279           sizeof(svga->state.hw_draw.enabled_constbufs));
 280    svga->state.hw_draw.ib = NULL;
 281    svga->state.hw_draw.num_vbuffers = 0;
 282    memset(svga->state.hw_draw.vbuffers, 0,
 283           sizeof(svga->state.hw_draw.vbuffers));
 284    svga->state.hw_draw.const0_buffer = NULL;
 285    svga->state.hw_draw.const0_handle = NULL;
 286
 287    /* Create a no-operation blend state which we will bind whenever the
 288     * requested blend state is impossible (e.g. due to having an integer
 289     * render target attached).
 290     *
 291     * XXX: We will probably actually need 16 of these, one for each possible
 292     * RGBA color mask (4 bits).  Then, we would bind the one with a color mask
 293     * matching the blend state it is replacing.
 294     */
 295    {
 296       struct pipe_blend_state noop_tmpl = {0};
 297       unsigned i;
 298
 299       for (i = 0; i < PIPE_MAX_COLOR_BUFS; ++i) {
 300          // Set the color mask to all-ones.  Later this may change.
 301          noop_tmpl.rt[i].colormask = PIPE_MASK_RGBA;
 302       }
 303       svga->noop_blend = svga->pipe.create_blend_state(&svga->pipe, &noop_tmpl);
 304    }
 305
 306    svga->dirty = ~0;
 307    svga->pred.query_id = SVGA3D_INVALID_ID;
 308    svga->disable_rasterizer = FALSE;
 309
 310    goto done;
 311
 312 cleanup:
 313    svga_destroy_swtnl(svga);
 314
 315    if (svga->const0_upload)
 316       u_upload_destroy(svga->const0_upload);
 317    if (svga->pipe.const_uploader)
 318       u_upload_destroy(svga->pipe.const_uploader);
 319    if (svga->pipe.stream_uploader)
 320       u_upload_destroy(svga->pipe.stream_uploader);
 321    svga_texture_transfer_map_upload_destroy(svga);
 322    if (svga->hwtnl)
 323       svga_hwtnl_destroy(svga->hwtnl);
 324    if (svga->swc)
 325       svga->swc->destroy(svga->swc);
 326    util_bitmask_destroy(svga->blend_object_id_bm);
 327    util_bitmask_destroy(svga->ds_object_id_bm);
 328    util_bitmask_destroy(svga->input_element_object_id_bm);
 329    util_bitmask_destroy(svga->rast_object_id_bm);
 330    util_bitmask_destroy(svga->sampler_object_id_bm);
 331    util_bitmask_destroy(svga->sampler_view_id_bm);
 332    util_bitmask_destroy(svga->shader_id_bm);
 333    util_bitmask_destroy(svga->surface_view_id_bm);
 334    util_bitmask_destroy(svga->stream_output_id_bm);
 335    util_bitmask_destroy(svga->query_id_bm);
 336    FREE(svga);
 337    svga = NULL;
 338
 339 done:
 340    SVGA_STATS_TIME_POP(svgascreen->sws);
 341    return svga ? &svga->pipe:NULL;
 342 }
 343
 344
 345 void
 346 svga_context_flush(struct svga_context *svga,
 347                    struct pipe_fence_handle **pfence)
 348 {
 349    struct svga_screen *svgascreen = svga_screen(svga->pipe.screen);
 350    struct pipe_fence_handle *fence = NULL;
 351    uint64_t t0;
 352
 353    SVGA_STATS_TIME_PUSH(svga_sws(svga), SVGA_STATS_TIME_CONTEXTFLUSH);
 354
 355    svga->curr.nr_fbs = 0;
 356
 357    /* Unmap the 0th/default constant buffer.  The u_upload_unmap() function
 358     * will call pipe_context::transfer_flush_region() to indicate the
 359     * region of the buffer which was modified (and needs to be uploaded).
 360     */
 361    if (svga->state.hw_draw.const0_handle) {
 362       assert(svga->state.hw_draw.const0_buffer);
 363       u_upload_unmap(svga->const0_upload);
 364       pipe_resource_reference(&svga->state.hw_draw.const0_buffer, NULL);
 365       svga->state.hw_draw.const0_handle = NULL;
 366    }
 367
 368    /* Ensure that texture dma uploads are processed
 369     * before submitting commands.
 370     */
 371    svga_context_flush_buffers(svga);
 372
 373    svga->hud.command_buffer_size +=
 374       svga->swc->get_command_buffer_size(svga->swc);
 375
 376    /* Flush pending commands to hardware:
 377     */
 378    t0 = svga_get_time(svga);
 379    svga->swc->flush(svga->swc, &fence);
 380    svga->hud.flush_time += (svga_get_time(svga) - t0);
 381
 382    svga->hud.num_flushes++;
 383
 384    svga_screen_cache_flush(svgascreen, svga, fence);
 385
 386    SVGA3D_ResetLastCommand(svga->swc);
 387
 388    /* To force the re-emission of rendertargets and texture sampler bindings on
 389     * the next command buffer.
 390     */
 391    svga->rebind.flags.rendertargets = TRUE;
 392    svga->rebind.flags.texture_samplers = TRUE;
 393
 394    if (svga_have_gb_objects(svga)) {
 395
 396       svga->rebind.flags.constbufs = TRUE;
 397       svga->rebind.flags.vs = TRUE;
 398       svga->rebind.flags.fs = TRUE;
 399       svga->rebind.flags.gs = TRUE;
 400
 401       if (svga_need_to_rebind_resources(svga)) {
 402          svga->rebind.flags.query = TRUE;
 403       }
 404    }
 405
 406    if (SVGA_DEBUG & DEBUG_SYNC) {
 407       if (fence)
 408          svga->pipe.screen->fence_finish(svga->pipe.screen, NULL, fence,
 409                                           PIPE_TIMEOUT_INFINITE);
 410    }
 411
 412    if (pfence)
 413       svgascreen->sws->fence_reference(svgascreen->sws, pfence, fence);
 414
 415    svgascreen->sws->fence_reference(svgascreen->sws, &fence, NULL);
 416
 417    SVGA_STATS_TIME_POP(svga_sws(svga));
 418 }
 419
 420
 421 /**
 422  * Flush pending commands and wait for completion with a fence.
 423  */
 424 void
 425 svga_context_finish(struct svga_context *svga)
 426 {
 427    struct pipe_screen *screen = svga->pipe.screen;
 428    struct pipe_fence_handle *fence = NULL;
 429
 430    SVGA_STATS_TIME_PUSH(svga_sws(svga), SVGA_STATS_TIME_CONTEXTFINISH);
 431
 432    svga_context_flush(svga, &fence);
 433    screen->fence_finish(screen, NULL, fence, PIPE_TIMEOUT_INFINITE);
 434    screen->fence_reference(screen, &fence, NULL);
 435
 436    SVGA_STATS_TIME_POP(svga_sws(svga));
 437 }
 438
 439
 440 /**
 441  * Emit pending drawing commands to the command buffer.
 442  * If the command buffer overflows, we flush it and retry.
 443  * \sa svga_hwtnl_flush()
 444  */
 445 void
 446 svga_hwtnl_flush_retry(struct svga_context *svga)
 447 {
 448    enum pipe_error ret = PIPE_OK;
 449
 450    ret = svga_hwtnl_flush(svga->hwtnl);
 451    if (ret == PIPE_ERROR_OUT_OF_MEMORY) {
 452       svga_context_flush(svga, NULL);
 453       ret = svga_hwtnl_flush(svga->hwtnl);
 454    }
 455
 456    assert(ret == PIPE_OK);
 457 }
 458
 459
 460 /**
 461  * Flush the primitive queue if this buffer is referred.
 462  *
 463  * Otherwise DMA commands on the referred buffer will be emitted too late.
 464  */
 465 void
 466 svga_hwtnl_flush_buffer(struct svga_context *svga,
 467                         struct pipe_resource *buffer)
 468 {
 469    if (svga_hwtnl_is_buffer_referred(svga->hwtnl, buffer)) {
 470       svga_hwtnl_flush_retry(svga);
 471    }
 472 }
 473
 474
 475 /**
 476  * Emit all operations pending on host surfaces.
 477  */
 478 void
 479 svga_surfaces_flush(struct svga_context *svga)
 480 {
 481    SVGA_STATS_TIME_PUSH(svga_sws(svga), SVGA_STATS_TIME_SURFACEFLUSH);
 482
 483    /* Emit buffered drawing commands.
 484     */
 485    svga_hwtnl_flush_retry(svga);
 486
 487    /* Emit back-copy from render target views to textures.
 488     */
 489    svga_propagate_rendertargets(svga);
 490
 491    SVGA_STATS_TIME_POP(svga_sws(svga));
 492 }
 493
 494
 495 struct svga_winsys_context *
 496 svga_winsys_context(struct pipe_context *pipe)
 497 {
 498    return svga_context(pipe)->swc;
 499 }