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 HW constant buffers */
  71    for (shader = 0; shader < ARRAY_SIZE(svga->state.hw_draw.constbuf); shader++) {
  72       pipe_resource_reference(&svga->state.hw_draw.constbuf[shader], NULL);
  73    }
  74
  75    pipe->delete_blend_state(pipe, svga->noop_blend);
  76
  77    /* free query gb object */
  78    if (svga->gb_query) {
  79       pipe->destroy_query(pipe, NULL);
  80       svga->gb_query = NULL;
  81    }
  82
  83    util_blitter_destroy(svga->blitter);
  84
  85    svga_cleanup_sampler_state(svga);
  86    svga_cleanup_framebuffer(svga);
  87    svga_cleanup_tss_binding(svga);
  88    svga_cleanup_vertex_state(svga);
  89
  90    svga_destroy_swtnl(svga);
  91    svga_hwtnl_destroy(svga->hwtnl);
  92
  93    svga->swc->destroy(svga->swc);
  94
  95    util_bitmask_destroy(svga->blend_object_id_bm);
  96    util_bitmask_destroy(svga->ds_object_id_bm);
  97    util_bitmask_destroy(svga->input_element_object_id_bm);
  98    util_bitmask_destroy(svga->rast_object_id_bm);
  99    util_bitmask_destroy(svga->sampler_object_id_bm);
 100    util_bitmask_destroy(svga->sampler_view_id_bm);
 101    util_bitmask_destroy(svga->shader_id_bm);
 102    util_bitmask_destroy(svga->surface_view_id_bm);
 103    util_bitmask_destroy(svga->stream_output_id_bm);
 104    util_bitmask_destroy(svga->query_id_bm);
 105    u_upload_destroy(svga->const0_upload);
 106    svga_texture_transfer_map_upload_destroy(svga);
 107
 108    /* free user's constant buffers */
 109    for (shader = 0; shader < PIPE_SHADER_TYPES; ++shader) {
 110       for (i = 0; i < ARRAY_SIZE(svga->curr.constbufs[shader]); ++i) {
 111          pipe_resource_reference(&svga->curr.constbufs[shader][i].buffer, NULL);
 112       }
 113    }
 114
 115    FREE(svga);
 116 }
 117
 118
 119 struct pipe_context *
 120 svga_context_create(struct pipe_screen *screen, void *priv, unsigned flags)
 121 {
 122    struct svga_screen *svgascreen = svga_screen(screen);
 123    struct svga_context *svga = NULL;
 124    enum pipe_error ret;
 125
 126    svga = CALLOC_STRUCT(svga_context);
 127    if (!svga)
 128       goto cleanup;
 129
 130    LIST_INITHEAD(&svga->dirty_buffers);
 131
 132    svga->pipe.screen = screen;
 133    svga->pipe.priv = priv;
 134    svga->pipe.destroy = svga_destroy;
 135
 136    svga->swc = svgascreen->sws->context_create(svgascreen->sws);
 137    if (!svga->swc)
 138       goto cleanup;
 139
 140    svga_init_resource_functions(svga);
 141    svga_init_blend_functions(svga);
 142    svga_init_blit_functions(svga);
 143    svga_init_depth_stencil_functions(svga);
 144    svga_init_draw_functions(svga);
 145    svga_init_flush_functions(svga);
 146    svga_init_misc_functions(svga);
 147    svga_init_rasterizer_functions(svga);
 148    svga_init_sampler_functions(svga);
 149    svga_init_fs_functions(svga);
 150    svga_init_vs_functions(svga);
 151    svga_init_gs_functions(svga);
 152    svga_init_vertex_functions(svga);
 153    svga_init_constbuffer_functions(svga);
 154    svga_init_query_functions(svga);
 155    svga_init_surface_functions(svga);
 156    svga_init_stream_output_functions(svga);
 157    svga_init_clear_functions(svga);
 158
 159    /* init misc state */
 160    svga->curr.sample_mask = ~0;
 161
 162    /* debug */
 163    svga->debug.no_swtnl = debug_get_option_no_swtnl();
 164    svga->debug.force_swtnl = debug_get_option_force_swtnl();
 165    svga->debug.use_min_mipmap = debug_get_option_use_min_mipmap();
 166    svga->debug.no_line_width = debug_get_option_no_line_width();
 167    svga->debug.force_hw_line_stipple = debug_get_option_force_hw_line_stipple();
 168
 169    if (!(svga->blend_object_id_bm = util_bitmask_create()))
 170       goto cleanup;
 171
 172    if (!(svga->ds_object_id_bm = util_bitmask_create()))
 173       goto cleanup;
 174
 175    if (!(svga->input_element_object_id_bm = util_bitmask_create()))
 176       goto cleanup;
 177
 178    if (!(svga->rast_object_id_bm = util_bitmask_create()))
 179       goto cleanup;
 180
 181    if (!(svga->sampler_object_id_bm = util_bitmask_create()))
 182       goto cleanup;
 183
 184    if (!(svga->sampler_view_id_bm = util_bitmask_create()))
 185       goto cleanup;
 186
 187    if (!(svga->shader_id_bm = util_bitmask_create()))
 188       goto cleanup;
 189
 190    if (!(svga->surface_view_id_bm = util_bitmask_create()))
 191       goto cleanup;
 192
 193    if (!(svga->stream_output_id_bm = util_bitmask_create()))
 194       goto cleanup;
 195
 196    if (!(svga->query_id_bm = util_bitmask_create()))
 197       goto cleanup;
 198
 199    svga->hwtnl = svga_hwtnl_create(svga);
 200    if (svga->hwtnl == NULL)
 201       goto cleanup;
 202
 203    if (!svga_init_swtnl(svga))
 204       goto cleanup;
 205
 206    ret = svga_emit_initial_state(svga);
 207    if (ret != PIPE_OK)
 208       goto cleanup;
 209
 210    svga->const0_upload = u_upload_create(&svga->pipe,
 211                                          CONST0_UPLOAD_DEFAULT_SIZE,
 212                                          PIPE_BIND_CONSTANT_BUFFER,
 213                                          PIPE_USAGE_STREAM);
 214    if (!svga->const0_upload)
 215       goto cleanup;
 216
 217    if (!svga_texture_transfer_map_upload_create(svga))
 218       goto cleanup;
 219
 220    /* Avoid shortcircuiting state with initial value of zero.
 221     */
 222    memset(&svga->state.hw_clear, 0xcd, sizeof(svga->state.hw_clear));
 223    memset(&svga->state.hw_clear.framebuffer, 0x0,
 224           sizeof(svga->state.hw_clear.framebuffer));
 225
 226    memset(&svga->state.hw_draw, 0xcd, sizeof(svga->state.hw_draw));
 227    memset(&svga->state.hw_draw.views, 0x0, sizeof(svga->state.hw_draw.views));
 228    memset(&svga->state.hw_draw.num_samplers, 0,
 229       sizeof(svga->state.hw_draw.num_samplers));
 230    memset(&svga->state.hw_draw.num_sampler_views, 0,
 231       sizeof(svga->state.hw_draw.num_sampler_views));
 232    memset(svga->state.hw_draw.sampler_views, 0,
 233           sizeof(svga->state.hw_draw.sampler_views));
 234    svga->state.hw_draw.num_views = 0;
 235    svga->state.hw_draw.num_rendertargets = 0;
 236    svga->state.hw_draw.dsv = NULL;
 237
 238    /* Initialize the shader pointers */
 239    svga->state.hw_draw.vs = NULL;
 240    svga->state.hw_draw.gs = NULL;
 241    svga->state.hw_draw.fs = NULL;
 242
 243    /* Initialize the currently bound buffer resources */
 244    memset(svga->state.hw_draw.constbuf, 0,
 245           sizeof(svga->state.hw_draw.constbuf));
 246    memset(svga->state.hw_draw.default_constbuf_size, 0,
 247           sizeof(svga->state.hw_draw.default_constbuf_size));
 248    memset(svga->state.hw_draw.enabled_constbufs, 0,
 249           sizeof(svga->state.hw_draw.enabled_constbufs));
 250    svga->state.hw_draw.ib = NULL;
 251    svga->state.hw_draw.num_vbuffers = 0;
 252    memset(svga->state.hw_draw.vbuffers, 0,
 253           sizeof(svga->state.hw_draw.vbuffers));
 254    svga->state.hw_draw.const0_buffer = NULL;
 255    svga->state.hw_draw.const0_handle = NULL;
 256
 257    /* Create a no-operation blend state which we will bind whenever the
 258     * requested blend state is impossible (e.g. due to having an integer
 259     * render target attached).
 260     *
 261     * XXX: We will probably actually need 16 of these, one for each possible
 262     * RGBA color mask (4 bits).  Then, we would bind the one with a color mask
 263     * matching the blend state it is replacing.
 264     */
 265    {
 266       struct pipe_blend_state noop_tmpl = {0};
 267       unsigned i;
 268
 269       for (i = 0; i < PIPE_MAX_COLOR_BUFS; ++i) {
 270          // Set the color mask to all-ones.  Later this may change.
 271          noop_tmpl.rt[i].colormask = PIPE_MASK_RGBA;
 272       }
 273       svga->noop_blend = svga->pipe.create_blend_state(&svga->pipe, &noop_tmpl);
 274    }
 275
 276    svga->dirty = ~0;
 277    svga->pred.query_id = SVGA3D_INVALID_ID;
 278
 279    return &svga->pipe;
 280
 281 cleanup:
 282    svga_destroy_swtnl(svga);
 283
 284    if (svga->const0_upload)
 285       u_upload_destroy(svga->const0_upload);
 286    svga_texture_transfer_map_upload_destroy(svga);
 287    if (svga->hwtnl)
 288       svga_hwtnl_destroy(svga->hwtnl);
 289    if (svga->swc)
 290       svga->swc->destroy(svga->swc);
 291    util_bitmask_destroy(svga->blend_object_id_bm);
 292    util_bitmask_destroy(svga->ds_object_id_bm);
 293    util_bitmask_destroy(svga->input_element_object_id_bm);
 294    util_bitmask_destroy(svga->rast_object_id_bm);
 295    util_bitmask_destroy(svga->sampler_object_id_bm);
 296    util_bitmask_destroy(svga->sampler_view_id_bm);
 297    util_bitmask_destroy(svga->shader_id_bm);
 298    util_bitmask_destroy(svga->surface_view_id_bm);
 299    util_bitmask_destroy(svga->stream_output_id_bm);
 300    util_bitmask_destroy(svga->query_id_bm);
 301    FREE(svga);
 302    return NULL;
 303 }
 304
 305
 306 void
 307 svga_context_flush(struct svga_context *svga,
 308                    struct pipe_fence_handle **pfence)
 309 {
 310    struct svga_screen *svgascreen = svga_screen(svga->pipe.screen);
 311    struct pipe_fence_handle *fence = NULL;
 312    uint64_t t0;
 313
 314    SVGA_STATS_TIME_PUSH(svga_sws(svga), SVGA_STATS_TIME_CONTEXTFLUSH);
 315
 316    svga->curr.nr_fbs = 0;
 317
 318    /* Unmap the 0th/default constant buffer.  The u_upload_unmap() function
 319     * will call pipe_context::transfer_flush_region() to indicate the
 320     * region of the buffer which was modified (and needs to be uploaded).
 321     */
 322    if (svga->state.hw_draw.const0_handle) {
 323       assert(svga->state.hw_draw.const0_buffer);
 324       u_upload_unmap(svga->const0_upload);
 325       pipe_resource_reference(&svga->state.hw_draw.const0_buffer, NULL);
 326       svga->state.hw_draw.const0_handle = NULL;
 327    }
 328
 329    /* Ensure that texture dma uploads are processed
 330     * before submitting commands.
 331     */
 332    svga_context_flush_buffers(svga);
 333
 334    svga->hud.command_buffer_size +=
 335       svga->swc->get_command_buffer_size(svga->swc);
 336
 337    /* Flush pending commands to hardware:
 338     */
 339    t0 = svga_get_time(svga);
 340    svga->swc->flush(svga->swc, &fence);
 341    svga->hud.flush_time += (svga_get_time(svga) - t0);
 342
 343    svga->hud.num_flushes++;
 344
 345    svga_screen_cache_flush(svgascreen, fence);
 346
 347    SVGA3D_ResetLastCommand(svga->swc);
 348
 349    /* To force the re-emission of rendertargets and texture sampler bindings on
 350     * the next command buffer.
 351     */
 352    svga->rebind.flags.rendertargets = TRUE;
 353    svga->rebind.flags.texture_samplers = TRUE;
 354
 355    if (svga_have_gb_objects(svga)) {
 356
 357       svga->rebind.flags.constbufs = TRUE;
 358       svga->rebind.flags.vs = TRUE;
 359       svga->rebind.flags.fs = TRUE;
 360       svga->rebind.flags.gs = TRUE;
 361
 362       if (svga_need_to_rebind_resources(svga)) {
 363          svga->rebind.flags.query = TRUE;
 364       }
 365    }
 366
 367    if (SVGA_DEBUG & DEBUG_SYNC) {
 368       if (fence)
 369          svga->pipe.screen->fence_finish(svga->pipe.screen, NULL, fence,
 370                                           PIPE_TIMEOUT_INFINITE);
 371    }
 372
 373    if (pfence)
 374       svgascreen->sws->fence_reference(svgascreen->sws, pfence, fence);
 375
 376    svgascreen->sws->fence_reference(svgascreen->sws, &fence, NULL);
 377
 378    SVGA_STATS_TIME_POP(svga_sws(svga));
 379 }
 380
 381
 382 /**
 383  * Flush pending commands and wait for completion with a fence.
 384  */
 385 void
 386 svga_context_finish(struct svga_context *svga)
 387 {
 388    struct pipe_screen *screen = svga->pipe.screen;
 389    struct pipe_fence_handle *fence = NULL;
 390
 391    SVGA_STATS_TIME_PUSH(svga_sws(svga), SVGA_STATS_TIME_CONTEXTFINISH);
 392
 393    svga_context_flush(svga, &fence);
 394    screen->fence_finish(screen, NULL, fence, PIPE_TIMEOUT_INFINITE);
 395    screen->fence_reference(screen, &fence, NULL);
 396
 397    SVGA_STATS_TIME_POP(svga_sws(svga));
 398 }
 399
 400
 401 /**
 402  * Emit pending drawing commands to the command buffer.
 403  * If the command buffer overflows, we flush it and retry.
 404  * \sa svga_hwtnl_flush()
 405  */
 406 void
 407 svga_hwtnl_flush_retry(struct svga_context *svga)
 408 {
 409    enum pipe_error ret = PIPE_OK;
 410
 411    ret = svga_hwtnl_flush(svga->hwtnl);
 412    if (ret == PIPE_ERROR_OUT_OF_MEMORY) {
 413       svga_context_flush(svga, NULL);
 414       ret = svga_hwtnl_flush(svga->hwtnl);
 415    }
 416
 417    assert(ret == PIPE_OK);
 418 }
 419
 420
 421 /**
 422  * Flush the primitive queue if this buffer is referred.
 423  *
 424  * Otherwise DMA commands on the referred buffer will be emitted too late.
 425  */
 426 void
 427 svga_hwtnl_flush_buffer(struct svga_context *svga,
 428                         struct pipe_resource *buffer)
 429 {
 430    if (svga_hwtnl_is_buffer_referred(svga->hwtnl, buffer)) {
 431       svga_hwtnl_flush_retry(svga);
 432    }
 433 }
 434
 435
 436 /**
 437  * Emit all operations pending on host surfaces.
 438  */
 439 void
 440 svga_surfaces_flush(struct svga_context *svga)
 441 {
 442    SVGA_STATS_TIME_PUSH(svga_sws(svga), SVGA_STATS_TIME_SURFACEFLUSH);
 443
 444    /* Emit buffered drawing commands.
 445     */
 446    svga_hwtnl_flush_retry(svga);
 447
 448    /* Emit back-copy from render target views to textures.
 449     */
 450    svga_propagate_rendertargets(svga);
 451
 452    SVGA_STATS_TIME_POP(svga_sws(svga));
 453 }
 454
 455
 456 struct svga_winsys_context *
 457 svga_winsys_context(struct pipe_context *pipe)
 458 {
 459    return svga_context(pipe)->swc;
 460 }