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 static void svga_destroy( struct pipe_context *pipe )
  57 {
  58    struct svga_context *svga = svga_context( pipe );
  59    unsigned shader, i;
  60
  61    /* free any alternate rasterizer states used for point sprite */
  62    for (i = 0; i < ARRAY_SIZE(svga->rasterizer_no_cull); i++) {
  63       if (svga->rasterizer_no_cull[i]) {
  64          pipe->delete_rasterizer_state(pipe, svga->rasterizer_no_cull[i]);
  65       }
  66    }
  67
  68    /* free HW constant buffers */
  69    for (shader = 0; shader < ARRAY_SIZE(svga->state.hw_draw.constbuf); shader++) {
  70       pipe_resource_reference(&svga->state.hw_draw.constbuf[shader], NULL);
  71    }
  72
  73    pipe->delete_blend_state(pipe, svga->noop_blend);
  74
  75    /* free query gb object */
  76    if (svga->gb_query) {
  77       pipe->destroy_query(pipe, NULL);
  78       svga->gb_query = NULL;
  79    }
  80
  81    util_blitter_destroy(svga->blitter);
  82
  83    svga_cleanup_sampler_state(svga);
  84    svga_cleanup_framebuffer( svga );
  85    svga_cleanup_tss_binding( svga );
  86    svga_cleanup_vertex_state(svga);
  87
  88    svga_destroy_swtnl( svga );
  89    svga_hwtnl_destroy( svga->hwtnl );
  90
  91    svga->swc->destroy(svga->swc);
  92
  93    util_bitmask_destroy(svga->blend_object_id_bm);
  94    util_bitmask_destroy(svga->ds_object_id_bm);
  95    util_bitmask_destroy(svga->input_element_object_id_bm);
  96    util_bitmask_destroy(svga->rast_object_id_bm);
  97    util_bitmask_destroy(svga->sampler_object_id_bm);
  98    util_bitmask_destroy(svga->sampler_view_id_bm);
  99    util_bitmask_destroy(svga->shader_id_bm);
 100    util_bitmask_destroy(svga->surface_view_id_bm);
 101    util_bitmask_destroy(svga->stream_output_id_bm);
 102    util_bitmask_destroy(svga->query_id_bm);
 103    u_upload_destroy(svga->const0_upload);
 104    svga_texture_transfer_map_upload_destroy(svga);
 105
 106    /* free user's constant buffers */
 107    for (shader = 0; shader < PIPE_SHADER_TYPES; ++shader) {
 108       for (i = 0; i < ARRAY_SIZE(svga->curr.constbufs[shader]); ++i) {
 109          pipe_resource_reference(&svga->curr.constbufs[shader][i].buffer, NULL);
 110       }
 111    }
 112
 113    FREE( svga );
 114 }
 115
 116
 117
 118 struct pipe_context *svga_context_create(struct pipe_screen *screen,
 119                                          void *priv, unsigned flags)
 120 {
 121    struct svga_screen *svgascreen = svga_screen(screen);
 122    struct svga_context *svga = NULL;
 123    enum pipe_error ret;
 124
 125    svga = CALLOC_STRUCT(svga_context);
 126    if (!svga)
 127       goto cleanup;
 128
 129    LIST_INITHEAD(&svga->dirty_buffers);
 130
 131    svga->pipe.screen = screen;
 132    svga->pipe.priv = priv;
 133    svga->pipe.destroy = svga_destroy;
 134
 135    svga->swc = svgascreen->sws->context_create(svgascreen->sws);
 136    if (!svga->swc)
 137       goto cleanup;
 138
 139    svga_init_resource_functions(svga);
 140    svga_init_blend_functions(svga);
 141    svga_init_blit_functions(svga);
 142    svga_init_depth_stencil_functions(svga);
 143    svga_init_draw_functions(svga);
 144    svga_init_flush_functions(svga);
 145    svga_init_misc_functions(svga);
 146    svga_init_rasterizer_functions(svga);
 147    svga_init_sampler_functions(svga);
 148    svga_init_fs_functions(svga);
 149    svga_init_vs_functions(svga);
 150    svga_init_gs_functions(svga);
 151    svga_init_vertex_functions(svga);
 152    svga_init_constbuffer_functions(svga);
 153    svga_init_query_functions(svga);
 154    svga_init_surface_functions(svga);
 155    svga_init_stream_output_functions(svga);
 156    svga_init_clear_functions(svga);
 157
 158    /* init misc state */
 159    svga->curr.sample_mask = ~0;
 160
 161    /* debug */
 162    svga->debug.no_swtnl = debug_get_option_no_swtnl();
 163    svga->debug.force_swtnl = debug_get_option_force_swtnl();
 164    svga->debug.use_min_mipmap = debug_get_option_use_min_mipmap();
 165    svga->debug.no_line_width = debug_get_option_no_line_width();
 166    svga->debug.force_hw_line_stipple = debug_get_option_force_hw_line_stipple();
 167
 168    if (!(svga->blend_object_id_bm = util_bitmask_create()))
 169       goto cleanup;
 170
 171    if (!(svga->ds_object_id_bm = util_bitmask_create()))
 172       goto cleanup;
 173
 174    if (!(svga->input_element_object_id_bm = util_bitmask_create()))
 175       goto cleanup;
 176
 177    if (!(svga->rast_object_id_bm = util_bitmask_create()))
 178       goto cleanup;
 179
 180    if (!(svga->sampler_object_id_bm = util_bitmask_create()))
 181       goto cleanup;
 182
 183    if (!(svga->sampler_view_id_bm = util_bitmask_create()))
 184       goto cleanup;
 185
 186    if (!(svga->shader_id_bm = util_bitmask_create()))
 187       goto cleanup;
 188
 189    if (!(svga->surface_view_id_bm = util_bitmask_create()))
 190       goto cleanup;
 191
 192    if (!(svga->stream_output_id_bm = util_bitmask_create()))
 193       goto cleanup;
 194
 195    if (!(svga->query_id_bm = util_bitmask_create()))
 196       goto cleanup;
 197
 198    svga->hwtnl = svga_hwtnl_create(svga);
 199    if (svga->hwtnl == NULL)
 200       goto cleanup;
 201
 202    if (!svga_init_swtnl(svga))
 203       goto cleanup;
 204
 205    ret = svga_emit_initial_state( svga );
 206    if (ret != PIPE_OK)
 207       goto cleanup;
 208
 209    svga->const0_upload = u_upload_create(&svga->pipe,
 210                                          CONST0_UPLOAD_DEFAULT_SIZE,
 211                                          PIPE_BIND_CONSTANT_BUFFER,
 212                                          PIPE_USAGE_STREAM);
 213    if (!svga->const0_upload)
 214       goto cleanup;
 215
 216    if (!svga_texture_transfer_map_upload_create(svga))
 217       goto cleanup;
 218
 219    /* Avoid shortcircuiting state with initial value of zero.
 220     */
 221    memset(&svga->state.hw_clear, 0xcd, sizeof(svga->state.hw_clear));
 222    memset(&svga->state.hw_clear.framebuffer, 0x0,
 223           sizeof(svga->state.hw_clear.framebuffer));
 224
 225    memset(&svga->state.hw_draw, 0xcd, sizeof(svga->state.hw_draw));
 226    memset(&svga->state.hw_draw.views, 0x0, sizeof(svga->state.hw_draw.views));
 227    memset(&svga->state.hw_draw.num_samplers, 0,
 228       sizeof(svga->state.hw_draw.num_samplers));
 229    memset(&svga->state.hw_draw.num_sampler_views, 0,
 230       sizeof(svga->state.hw_draw.num_sampler_views));
 231    memset(svga->state.hw_draw.sampler_views, 0,
 232           sizeof(svga->state.hw_draw.sampler_views));
 233    svga->state.hw_draw.num_views = 0;
 234    svga->state.hw_draw.num_rendertargets = 0;
 235    svga->state.hw_draw.dsv = NULL;
 236
 237    /* Initialize the shader pointers */
 238    svga->state.hw_draw.vs = NULL;
 239    svga->state.hw_draw.gs = NULL;
 240    svga->state.hw_draw.fs = NULL;
 241
 242    /* Initialize the currently bound buffer resources */
 243    memset(svga->state.hw_draw.constbuf, 0,
 244           sizeof(svga->state.hw_draw.constbuf));
 245    memset(svga->state.hw_draw.default_constbuf_size, 0,
 246           sizeof(svga->state.hw_draw.default_constbuf_size));
 247    memset(svga->state.hw_draw.enabled_constbufs, 0,
 248           sizeof(svga->state.hw_draw.enabled_constbufs));
 249    svga->state.hw_draw.ib = NULL;
 250    svga->state.hw_draw.num_vbuffers = 0;
 251    memset(svga->state.hw_draw.vbuffers, 0,
 252           sizeof(svga->state.hw_draw.vbuffers));
 253    svga->state.hw_draw.const0_buffer = NULL;
 254    svga->state.hw_draw.const0_handle = NULL;
 255
 256    /* Create a no-operation blend state which we will bind whenever the
 257     * requested blend state is impossible (e.g. due to having an integer
 258     * render target attached).
 259     *
 260     * XXX: We will probably actually need 16 of these, one for each possible
 261     * RGBA color mask (4 bits).  Then, we would bind the one with a color mask
 262     * matching the blend state it is replacing.
 263     */
 264    {
 265       struct pipe_blend_state noop_tmpl = {0};
 266       unsigned i;
 267
 268       for (i = 0; i < PIPE_MAX_COLOR_BUFS; ++i) {
 269          // Set the color mask to all-ones.  Later this may change.
 270          noop_tmpl.rt[i].colormask = PIPE_MASK_RGBA;
 271       }
 272       svga->noop_blend = svga->pipe.create_blend_state(&svga->pipe, &noop_tmpl);
 273    }
 274
 275    svga->dirty = ~0;
 276
 277    return &svga->pipe;
 278
 279 cleanup:
 280    svga_destroy_swtnl(svga);
 281
 282    if (svga->const0_upload)
 283       u_upload_destroy(svga->const0_upload);
 284    svga_texture_transfer_map_upload_destroy(svga);
 285    if (svga->hwtnl)
 286       svga_hwtnl_destroy(svga->hwtnl);
 287    if (svga->swc)
 288       svga->swc->destroy(svga->swc);
 289    util_bitmask_destroy(svga->blend_object_id_bm);
 290    util_bitmask_destroy(svga->ds_object_id_bm);
 291    util_bitmask_destroy(svga->input_element_object_id_bm);
 292    util_bitmask_destroy(svga->rast_object_id_bm);
 293    util_bitmask_destroy(svga->sampler_object_id_bm);
 294    util_bitmask_destroy(svga->sampler_view_id_bm);
 295    util_bitmask_destroy(svga->shader_id_bm);
 296    util_bitmask_destroy(svga->surface_view_id_bm);
 297    util_bitmask_destroy(svga->stream_output_id_bm);
 298    util_bitmask_destroy(svga->query_id_bm);
 299    FREE(svga);
 300    return NULL;
 301 }
 302
 303
 304 void svga_context_flush( struct svga_context *svga,
 305                          struct pipe_fence_handle **pfence )
 306 {
 307    struct svga_screen *svgascreen = svga_screen(svga->pipe.screen);
 308    struct pipe_fence_handle *fence = NULL;
 309    uint64_t t0;
 310
 311    SVGA_STATS_TIME_PUSH(svga_sws(svga), SVGA_STATS_TIME_CONTEXTFLUSH);
 312
 313    svga->curr.nr_fbs = 0;
 314
 315    /* Unmap the 0th/default constant buffer.  The u_upload_unmap() function
 316     * will call pipe_context::transfer_flush_region() to indicate the
 317     * region of the buffer which was modified (and needs to be uploaded).
 318     */
 319    if (svga->state.hw_draw.const0_handle) {
 320       assert(svga->state.hw_draw.const0_buffer);
 321       u_upload_unmap(svga->const0_upload);
 322       pipe_resource_reference(&svga->state.hw_draw.const0_buffer, NULL);
 323       svga->state.hw_draw.const0_handle = NULL;
 324    }
 325
 326    /* Ensure that texture dma uploads are processed
 327     * before submitting commands.
 328     */
 329    svga_context_flush_buffers(svga);
 330
 331    svga->hud.command_buffer_size +=
 332       svga->swc->get_command_buffer_size(svga->swc);
 333
 334    /* Flush pending commands to hardware:
 335     */
 336    t0 = svga_get_time(svga);
 337    svga->swc->flush(svga->swc, &fence);
 338    svga->hud.flush_time += (svga_get_time(svga) - t0);
 339
 340    svga->hud.num_flushes++;
 341
 342    svga_screen_cache_flush(svgascreen, fence);
 343
 344    SVGA3D_ResetLastCommand(svga->swc);
 345
 346    /* To force the re-emission of rendertargets and texture sampler bindings on
 347     * the next command buffer.
 348     */
 349    svga->rebind.flags.rendertargets = TRUE;
 350    svga->rebind.flags.texture_samplers = TRUE;
 351
 352    if (svga_have_gb_objects(svga)) {
 353
 354       svga->rebind.flags.constbufs = TRUE;
 355       svga->rebind.flags.vs = TRUE;
 356       svga->rebind.flags.fs = TRUE;
 357       svga->rebind.flags.gs = TRUE;
 358
 359       if (svga_need_to_rebind_resources(svga)) {
 360          svga->rebind.flags.query = TRUE;
 361       }
 362    }
 363
 364    if (SVGA_DEBUG & DEBUG_SYNC) {
 365       if (fence)
 366          svga->pipe.screen->fence_finish( svga->pipe.screen, NULL, fence,
 367                                           PIPE_TIMEOUT_INFINITE);
 368    }
 369
 370    if (pfence)
 371       svgascreen->sws->fence_reference(svgascreen->sws, pfence, fence);
 372
 373    svgascreen->sws->fence_reference(svgascreen->sws, &fence, NULL);
 374
 375    SVGA_STATS_TIME_POP(svga_sws(svga));
 376 }
 377
 378
 379 /**
 380  * Flush pending commands and wait for completion with a fence.
 381  */
 382 void
 383 svga_context_finish(struct svga_context *svga)
 384 {
 385    struct pipe_screen *screen = svga->pipe.screen;
 386    struct pipe_fence_handle *fence = NULL;
 387
 388    svga_context_flush(svga, &fence);
 389    screen->fence_finish(screen, NULL, fence, PIPE_TIMEOUT_INFINITE);
 390    screen->fence_reference(screen, &fence, NULL);
 391 }
 392
 393
 394 /**
 395  * Emit pending drawing commands to the command buffer.
 396  * If the command buffer overflows, we flush it and retry.
 397  * \sa svga_hwtnl_flush()
 398  */
 399 void svga_hwtnl_flush_retry( struct svga_context *svga )
 400 {
 401    enum pipe_error ret = PIPE_OK;
 402
 403    ret = svga_hwtnl_flush( svga->hwtnl );
 404    if (ret == PIPE_ERROR_OUT_OF_MEMORY) {
 405       svga_context_flush( svga, NULL );
 406       ret = svga_hwtnl_flush( svga->hwtnl );
 407    }
 408
 409    assert(ret == PIPE_OK);
 410 }
 411
 412
 413 /**
 414  * Flush the primitive queue if this buffer is referred.
 415  *
 416  * Otherwise DMA commands on the referred buffer will be emitted too late.
 417  */
 418 void svga_hwtnl_flush_buffer( struct svga_context *svga,
 419                               struct pipe_resource *buffer )
 420 {
 421    if (svga_hwtnl_is_buffer_referred(svga->hwtnl, buffer)) {
 422       svga_hwtnl_flush_retry(svga);
 423    }
 424 }
 425
 426
 427 /* Emit all operations pending on host surfaces.
 428  */
 429 void svga_surfaces_flush(struct svga_context *svga)
 430 {
 431    SVGA_STATS_TIME_PUSH(svga_sws(svga), SVGA_STATS_TIME_SURFACEFLUSH);
 432
 433    /* Emit buffered drawing commands.
 434     */
 435    svga_hwtnl_flush_retry( svga );
 436
 437    /* Emit back-copy from render target views to textures.
 438     */
 439    svga_propagate_rendertargets(svga);
 440
 441    SVGA_STATS_TIME_POP(svga_sws(svga));
 442 }
 443
 444
 445 struct svga_winsys_context *
 446 svga_winsys_context( struct pipe_context *pipe )
 447 {
 448    return svga_context( pipe )->swc;
 449 }