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 = CALLOC_STRUCT(svga_context);
 134    if (!svga)
 135       goto cleanup;
 136
 137    LIST_INITHEAD(&svga->dirty_buffers);
 138
 139    svga->pipe.screen = screen;
 140    svga->pipe.priv = priv;
 141    svga->pipe.destroy = svga_destroy;
 142    svga->pipe.stream_uploader = u_upload_create(&svga->pipe, 1024 * 1024,
 143                                                 PIPE_BIND_VERTEX_BUFFER |
 144                                                 PIPE_BIND_INDEX_BUFFER,
 145                                                 PIPE_USAGE_STREAM);
 146    if (!svga->pipe.stream_uploader)
 147       goto cleanup;
 148
 149    svga->pipe.const_uploader = u_upload_create(&svga->pipe, 128 * 1024,
 150                                                PIPE_BIND_CONSTANT_BUFFER,
 151                                                PIPE_USAGE_STREAM);
 152    if (!svga->pipe.const_uploader)
 153       goto cleanup;
 154
 155    svga->swc = svgascreen->sws->context_create(svgascreen->sws);
 156    if (!svga->swc)
 157       goto cleanup;
 158
 159    svga_init_resource_functions(svga);
 160    svga_init_blend_functions(svga);
 161    svga_init_blit_functions(svga);
 162    svga_init_depth_stencil_functions(svga);
 163    svga_init_draw_functions(svga);
 164    svga_init_flush_functions(svga);
 165    svga_init_misc_functions(svga);
 166    svga_init_rasterizer_functions(svga);
 167    svga_init_sampler_functions(svga);
 168    svga_init_fs_functions(svga);
 169    svga_init_vs_functions(svga);
 170    svga_init_gs_functions(svga);
 171    svga_init_vertex_functions(svga);
 172    svga_init_constbuffer_functions(svga);
 173    svga_init_query_functions(svga);
 174    svga_init_surface_functions(svga);
 175    svga_init_stream_output_functions(svga);
 176    svga_init_clear_functions(svga);
 177
 178    /* init misc state */
 179    svga->curr.sample_mask = ~0;
 180
 181    /* debug */
 182    svga->debug.no_swtnl = debug_get_option_no_swtnl();
 183    svga->debug.force_swtnl = debug_get_option_force_swtnl();
 184    svga->debug.use_min_mipmap = debug_get_option_use_min_mipmap();
 185    svga->debug.no_line_width = debug_get_option_no_line_width();
 186    svga->debug.force_hw_line_stipple = debug_get_option_force_hw_line_stipple();
 187
 188    if (!(svga->blend_object_id_bm = util_bitmask_create()))
 189       goto cleanup;
 190
 191    if (!(svga->ds_object_id_bm = util_bitmask_create()))
 192       goto cleanup;
 193
 194    if (!(svga->input_element_object_id_bm = util_bitmask_create()))
 195       goto cleanup;
 196
 197    if (!(svga->rast_object_id_bm = util_bitmask_create()))
 198       goto cleanup;
 199
 200    if (!(svga->sampler_object_id_bm = util_bitmask_create()))
 201       goto cleanup;
 202
 203    if (!(svga->sampler_view_id_bm = util_bitmask_create()))
 204       goto cleanup;
 205
 206    if (!(svga->shader_id_bm = util_bitmask_create()))
 207       goto cleanup;
 208
 209    if (!(svga->surface_view_id_bm = util_bitmask_create()))
 210       goto cleanup;
 211
 212    if (!(svga->stream_output_id_bm = util_bitmask_create()))
 213       goto cleanup;
 214
 215    if (!(svga->query_id_bm = util_bitmask_create()))
 216       goto cleanup;
 217
 218    svga->hwtnl = svga_hwtnl_create(svga);
 219    if (svga->hwtnl == NULL)
 220       goto cleanup;
 221
 222    if (!svga_init_swtnl(svga))
 223       goto cleanup;
 224
 225    ret = svga_emit_initial_state(svga);
 226    if (ret != PIPE_OK)
 227       goto cleanup;
 228
 229    svga->const0_upload = u_upload_create(&svga->pipe,
 230                                          CONST0_UPLOAD_DEFAULT_SIZE,
 231                                          PIPE_BIND_CONSTANT_BUFFER,
 232                                          PIPE_USAGE_STREAM);
 233    if (!svga->const0_upload)
 234       goto cleanup;
 235
 236    if (!svga_texture_transfer_map_upload_create(svga))
 237       goto cleanup;
 238
 239    /* Avoid shortcircuiting state with initial value of zero.
 240     */
 241    memset(&svga->state.hw_clear, 0xcd, sizeof(svga->state.hw_clear));
 242    memset(&svga->state.hw_clear.framebuffer, 0x0,
 243           sizeof(svga->state.hw_clear.framebuffer));
 244    svga->state.hw_clear.num_rendertargets = 0;
 245    svga->state.hw_clear.dsv = NULL;
 246
 247    memset(&svga->state.hw_draw, 0xcd, sizeof(svga->state.hw_draw));
 248    memset(&svga->state.hw_draw.views, 0x0, sizeof(svga->state.hw_draw.views));
 249    memset(&svga->state.hw_draw.num_samplers, 0,
 250       sizeof(svga->state.hw_draw.num_samplers));
 251    memset(&svga->state.hw_draw.num_sampler_views, 0,
 252       sizeof(svga->state.hw_draw.num_sampler_views));
 253    memset(svga->state.hw_draw.sampler_views, 0,
 254           sizeof(svga->state.hw_draw.sampler_views));
 255    svga->state.hw_draw.num_views = 0;
 256    svga->state.hw_draw.rasterizer_discard = FALSE;
 257
 258    /* Initialize the shader pointers */
 259    svga->state.hw_draw.vs = NULL;
 260    svga->state.hw_draw.gs = NULL;
 261    svga->state.hw_draw.fs = NULL;
 262
 263    /* Initialize the currently bound buffer resources */
 264    memset(svga->state.hw_draw.constbuf, 0,
 265           sizeof(svga->state.hw_draw.constbuf));
 266    memset(svga->state.hw_draw.default_constbuf_size, 0,
 267           sizeof(svga->state.hw_draw.default_constbuf_size));
 268    memset(svga->state.hw_draw.enabled_constbufs, 0,
 269           sizeof(svga->state.hw_draw.enabled_constbufs));
 270    svga->state.hw_draw.ib = NULL;
 271    svga->state.hw_draw.num_vbuffers = 0;
 272    memset(svga->state.hw_draw.vbuffers, 0,
 273           sizeof(svga->state.hw_draw.vbuffers));
 274    svga->state.hw_draw.const0_buffer = NULL;
 275    svga->state.hw_draw.const0_handle = NULL;
 276
 277    /* Create a no-operation blend state which we will bind whenever the
 278     * requested blend state is impossible (e.g. due to having an integer
 279     * render target attached).
 280     *
 281     * XXX: We will probably actually need 16 of these, one for each possible
 282     * RGBA color mask (4 bits).  Then, we would bind the one with a color mask
 283     * matching the blend state it is replacing.
 284     */
 285    {
 286       struct pipe_blend_state noop_tmpl = {0};
 287       unsigned i;
 288
 289       for (i = 0; i < PIPE_MAX_COLOR_BUFS; ++i) {
 290          // Set the color mask to all-ones.  Later this may change.
 291          noop_tmpl.rt[i].colormask = PIPE_MASK_RGBA;
 292       }
 293       svga->noop_blend = svga->pipe.create_blend_state(&svga->pipe, &noop_tmpl);
 294    }
 295
 296    svga->dirty = ~0;
 297    svga->pred.query_id = SVGA3D_INVALID_ID;
 298    svga->disable_rasterizer = FALSE;
 299
 300    return &svga->pipe;
 301
 302 cleanup:
 303    svga_destroy_swtnl(svga);
 304
 305    if (svga->const0_upload)
 306       u_upload_destroy(svga->const0_upload);
 307    if (svga->pipe.const_uploader)
 308       u_upload_destroy(svga->pipe.const_uploader);
 309    if (svga->pipe.stream_uploader)
 310       u_upload_destroy(svga->pipe.stream_uploader);
 311    svga_texture_transfer_map_upload_destroy(svga);
 312    if (svga->hwtnl)
 313       svga_hwtnl_destroy(svga->hwtnl);
 314    if (svga->swc)
 315       svga->swc->destroy(svga->swc);
 316    util_bitmask_destroy(svga->blend_object_id_bm);
 317    util_bitmask_destroy(svga->ds_object_id_bm);
 318    util_bitmask_destroy(svga->input_element_object_id_bm);
 319    util_bitmask_destroy(svga->rast_object_id_bm);
 320    util_bitmask_destroy(svga->sampler_object_id_bm);
 321    util_bitmask_destroy(svga->sampler_view_id_bm);
 322    util_bitmask_destroy(svga->shader_id_bm);
 323    util_bitmask_destroy(svga->surface_view_id_bm);
 324    util_bitmask_destroy(svga->stream_output_id_bm);
 325    util_bitmask_destroy(svga->query_id_bm);
 326    FREE(svga);
 327    return NULL;
 328 }
 329
 330
 331 void
 332 svga_context_flush(struct svga_context *svga,
 333                    struct pipe_fence_handle **pfence)
 334 {
 335    struct svga_screen *svgascreen = svga_screen(svga->pipe.screen);
 336    struct pipe_fence_handle *fence = NULL;
 337    uint64_t t0;
 338
 339    SVGA_STATS_TIME_PUSH(svga_sws(svga), SVGA_STATS_TIME_CONTEXTFLUSH);
 340
 341    svga->curr.nr_fbs = 0;
 342
 343    /* Unmap the 0th/default constant buffer.  The u_upload_unmap() function
 344     * will call pipe_context::transfer_flush_region() to indicate the
 345     * region of the buffer which was modified (and needs to be uploaded).
 346     */
 347    if (svga->state.hw_draw.const0_handle) {
 348       assert(svga->state.hw_draw.const0_buffer);
 349       u_upload_unmap(svga->const0_upload);
 350       pipe_resource_reference(&svga->state.hw_draw.const0_buffer, NULL);
 351       svga->state.hw_draw.const0_handle = NULL;
 352    }
 353
 354    /* Ensure that texture dma uploads are processed
 355     * before submitting commands.
 356     */
 357    svga_context_flush_buffers(svga);
 358
 359    svga->hud.command_buffer_size +=
 360       svga->swc->get_command_buffer_size(svga->swc);
 361
 362    /* Flush pending commands to hardware:
 363     */
 364    t0 = svga_get_time(svga);
 365    svga->swc->flush(svga->swc, &fence);
 366    svga->hud.flush_time += (svga_get_time(svga) - t0);
 367
 368    svga->hud.num_flushes++;
 369
 370    svga_screen_cache_flush(svgascreen, svga, fence);
 371
 372    SVGA3D_ResetLastCommand(svga->swc);
 373
 374    /* To force the re-emission of rendertargets and texture sampler bindings on
 375     * the next command buffer.
 376     */
 377    svga->rebind.flags.rendertargets = TRUE;
 378    svga->rebind.flags.texture_samplers = TRUE;
 379
 380    if (svga_have_gb_objects(svga)) {
 381
 382       svga->rebind.flags.constbufs = TRUE;
 383       svga->rebind.flags.vs = TRUE;
 384       svga->rebind.flags.fs = TRUE;
 385       svga->rebind.flags.gs = TRUE;
 386
 387       if (svga_need_to_rebind_resources(svga)) {
 388          svga->rebind.flags.query = TRUE;
 389       }
 390    }
 391
 392    if (SVGA_DEBUG & DEBUG_SYNC) {
 393       if (fence)
 394          svga->pipe.screen->fence_finish(svga->pipe.screen, NULL, fence,
 395                                           PIPE_TIMEOUT_INFINITE);
 396    }
 397
 398    if (pfence)
 399       svgascreen->sws->fence_reference(svgascreen->sws, pfence, fence);
 400
 401    svgascreen->sws->fence_reference(svgascreen->sws, &fence, NULL);
 402
 403    SVGA_STATS_TIME_POP(svga_sws(svga));
 404 }
 405
 406
 407 /**
 408  * Flush pending commands and wait for completion with a fence.
 409  */
 410 void
 411 svga_context_finish(struct svga_context *svga)
 412 {
 413    struct pipe_screen *screen = svga->pipe.screen;
 414    struct pipe_fence_handle *fence = NULL;
 415
 416    SVGA_STATS_TIME_PUSH(svga_sws(svga), SVGA_STATS_TIME_CONTEXTFINISH);
 417
 418    svga_context_flush(svga, &fence);
 419    screen->fence_finish(screen, NULL, fence, PIPE_TIMEOUT_INFINITE);
 420    screen->fence_reference(screen, &fence, NULL);
 421
 422    SVGA_STATS_TIME_POP(svga_sws(svga));
 423 }
 424
 425
 426 /**
 427  * Emit pending drawing commands to the command buffer.
 428  * If the command buffer overflows, we flush it and retry.
 429  * \sa svga_hwtnl_flush()
 430  */
 431 void
 432 svga_hwtnl_flush_retry(struct svga_context *svga)
 433 {
 434    enum pipe_error ret = PIPE_OK;
 435
 436    ret = svga_hwtnl_flush(svga->hwtnl);
 437    if (ret == PIPE_ERROR_OUT_OF_MEMORY) {
 438       svga_context_flush(svga, NULL);
 439       ret = svga_hwtnl_flush(svga->hwtnl);
 440    }
 441
 442    assert(ret == PIPE_OK);
 443 }
 444
 445
 446 /**
 447  * Flush the primitive queue if this buffer is referred.
 448  *
 449  * Otherwise DMA commands on the referred buffer will be emitted too late.
 450  */
 451 void
 452 svga_hwtnl_flush_buffer(struct svga_context *svga,
 453                         struct pipe_resource *buffer)
 454 {
 455    if (svga_hwtnl_is_buffer_referred(svga->hwtnl, buffer)) {
 456       svga_hwtnl_flush_retry(svga);
 457    }
 458 }
 459
 460
 461 /**
 462  * Emit all operations pending on host surfaces.
 463  */
 464 void
 465 svga_surfaces_flush(struct svga_context *svga)
 466 {
 467    SVGA_STATS_TIME_PUSH(svga_sws(svga), SVGA_STATS_TIME_SURFACEFLUSH);
 468
 469    /* Emit buffered drawing commands.
 470     */
 471    svga_hwtnl_flush_retry(svga);
 472
 473    /* Emit back-copy from render target views to textures.
 474     */
 475    svga_propagate_rendertargets(svga);
 476
 477    SVGA_STATS_TIME_POP(svga_sws(svga));
 478 }
 479
 480
 481 struct svga_winsys_context *
 482 svga_winsys_context(struct pipe_context *pipe)
 483 {
 484    return svga_context(pipe)->swc;
 485 }