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_NUM_OPTION(disable_shader, "SVGA_DISABLE_SHADER", ~0);
  54 DEBUG_GET_ONCE_BOOL_OPTION(no_line_width, "SVGA_NO_LINE_WIDTH", FALSE);
  55 DEBUG_GET_ONCE_BOOL_OPTION(force_hw_line_stipple, "SVGA_FORCE_HW_LINE_STIPPLE", FALSE);
  56
  57 static void svga_destroy( struct pipe_context *pipe )
  58 {
  59    struct svga_context *svga = svga_context( pipe );
  60    unsigned shader, i;
  61
  62    /* free any alternate rasterizer states used for point sprite */
  63    for (i = 0; i < ARRAY_SIZE(svga->rasterizer_no_cull); i++) {
  64       if (svga->rasterizer_no_cull[i]) {
  65          pipe->delete_rasterizer_state(pipe, svga->rasterizer_no_cull[i]);
  66       }
  67    }
  68
  69    /* free HW constant buffers */
  70    for (shader = 0; shader < ARRAY_SIZE(svga->state.hw_draw.constbuf); shader++) {
  71       pipe_resource_reference(&svga->state.hw_draw.constbuf[shader], NULL);
  72    }
  73
  74    pipe->delete_blend_state(pipe, svga->noop_blend);
  75
  76    /* free query gb object */
  77    if (svga->gb_query) {
  78       pipe->destroy_query(pipe, NULL);
  79       svga->gb_query = NULL;
  80    }
  81
  82    util_blitter_destroy(svga->blitter);
  83
  84    svga_cleanup_sampler_state(svga);
  85    svga_cleanup_framebuffer( svga );
  86    svga_cleanup_tss_binding( svga );
  87    svga_cleanup_vertex_state(svga);
  88
  89    svga_destroy_swtnl( svga );
  90    svga_hwtnl_destroy( svga->hwtnl );
  91
  92    svga->swc->destroy(svga->swc);
  93
  94    util_bitmask_destroy(svga->blend_object_id_bm);
  95    util_bitmask_destroy(svga->ds_object_id_bm);
  96    util_bitmask_destroy(svga->input_element_object_id_bm);
  97    util_bitmask_destroy(svga->rast_object_id_bm);
  98    util_bitmask_destroy(svga->sampler_object_id_bm);
  99    util_bitmask_destroy(svga->sampler_view_id_bm);
 100    util_bitmask_destroy(svga->shader_id_bm);
 101    util_bitmask_destroy(svga->surface_view_id_bm);
 102    util_bitmask_destroy(svga->stream_output_id_bm);
 103    util_bitmask_destroy(svga->query_id_bm);
 104    u_upload_destroy(svga->const0_upload);
 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.disable_shader = debug_get_option_disable_shader();
 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    /* Avoid shortcircuiting state with initial value of zero.
 218     */
 219    memset(&svga->state.hw_clear, 0xcd, sizeof(svga->state.hw_clear));
 220    memset(&svga->state.hw_clear.framebuffer, 0x0,
 221           sizeof(svga->state.hw_clear.framebuffer));
 222
 223    memset(&svga->state.hw_draw, 0xcd, sizeof(svga->state.hw_draw));
 224    memset(&svga->state.hw_draw.views, 0x0, sizeof(svga->state.hw_draw.views));
 225    memset(&svga->state.hw_draw.num_samplers, 0,
 226       sizeof(svga->state.hw_draw.num_samplers));
 227    memset(&svga->state.hw_draw.num_sampler_views, 0,
 228       sizeof(svga->state.hw_draw.num_sampler_views));
 229    memset(svga->state.hw_draw.sampler_views, 0,
 230           sizeof(svga->state.hw_draw.sampler_views));
 231    svga->state.hw_draw.num_views = 0;
 232    svga->state.hw_draw.num_rendertargets = 0;
 233    svga->state.hw_draw.dsv = NULL;
 234
 235    /* Initialize the shader pointers */
 236    svga->state.hw_draw.vs = NULL;
 237    svga->state.hw_draw.gs = NULL;
 238    svga->state.hw_draw.fs = NULL;
 239
 240    /* Initialize the currently bound buffer resources */
 241    memset(svga->state.hw_draw.constbuf, 0,
 242           sizeof(svga->state.hw_draw.constbuf));
 243    memset(svga->state.hw_draw.default_constbuf_size, 0,
 244           sizeof(svga->state.hw_draw.default_constbuf_size));
 245    memset(svga->state.hw_draw.enabled_constbufs, 0,
 246           sizeof(svga->state.hw_draw.enabled_constbufs));
 247    svga->state.hw_draw.ib = NULL;
 248    svga->state.hw_draw.num_vbuffers = 0;
 249    memset(svga->state.hw_draw.vbuffers, 0,
 250           sizeof(svga->state.hw_draw.vbuffers));
 251    svga->state.hw_draw.const0_buffer = NULL;
 252    svga->state.hw_draw.const0_handle = NULL;
 253
 254    /* Create a no-operation blend state which we will bind whenever the
 255     * requested blend state is impossible (e.g. due to having an integer
 256     * render target attached).
 257     *
 258     * XXX: We will probably actually need 16 of these, one for each possible
 259     * RGBA color mask (4 bits).  Then, we would bind the one with a color mask
 260     * matching the blend state it is replacing.
 261     */
 262    {
 263       struct pipe_blend_state noop_tmpl = {0};
 264       unsigned i;
 265
 266       for (i = 0; i < PIPE_MAX_COLOR_BUFS; ++i) {
 267          // Set the color mask to all-ones.  Later this may change.
 268          noop_tmpl.rt[i].colormask = PIPE_MASK_RGBA;
 269       }
 270       svga->noop_blend = svga->pipe.create_blend_state(&svga->pipe, &noop_tmpl);
 271    }
 272
 273    svga->dirty = ~0;
 274
 275    return &svga->pipe;
 276
 277 cleanup:
 278    svga_destroy_swtnl(svga);
 279
 280    if (svga->const0_upload)
 281       u_upload_destroy(svga->const0_upload);
 282    if (svga->hwtnl)
 283       svga_hwtnl_destroy(svga->hwtnl);
 284    if (svga->swc)
 285       svga->swc->destroy(svga->swc);
 286    util_bitmask_destroy(svga->blend_object_id_bm);
 287    util_bitmask_destroy(svga->ds_object_id_bm);
 288    util_bitmask_destroy(svga->input_element_object_id_bm);
 289    util_bitmask_destroy(svga->rast_object_id_bm);
 290    util_bitmask_destroy(svga->sampler_object_id_bm);
 291    util_bitmask_destroy(svga->sampler_view_id_bm);
 292    util_bitmask_destroy(svga->shader_id_bm);
 293    util_bitmask_destroy(svga->surface_view_id_bm);
 294    util_bitmask_destroy(svga->stream_output_id_bm);
 295    util_bitmask_destroy(svga->query_id_bm);
 296    FREE(svga);
 297    return NULL;
 298 }
 299
 300
 301 void svga_context_flush( struct svga_context *svga,
 302                          struct pipe_fence_handle **pfence )
 303 {
 304    struct svga_screen *svgascreen = svga_screen(svga->pipe.screen);
 305    struct pipe_fence_handle *fence = NULL;
 306    uint64_t t0;
 307
 308    SVGA_STATS_TIME_PUSH(svga_sws(svga), SVGA_STATS_TIME_CONTEXTFLUSH);
 309
 310    svga->curr.nr_fbs = 0;
 311
 312    /* Unmap the 0th/default constant buffer.  The u_upload_unmap() function
 313     * will call pipe_context::transfer_flush_region() to indicate the
 314     * region of the buffer which was modified (and needs to be uploaded).
 315     */
 316    if (svga->state.hw_draw.const0_handle) {
 317       assert(svga->state.hw_draw.const0_buffer);
 318       u_upload_unmap(svga->const0_upload);
 319       pipe_resource_reference(&svga->state.hw_draw.const0_buffer, NULL);
 320       svga->state.hw_draw.const0_handle = NULL;
 321    }
 322
 323    /* Ensure that texture dma uploads are processed
 324     * before submitting commands.
 325     */
 326    svga_context_flush_buffers(svga);
 327
 328    svga->hud.command_buffer_size +=
 329       svga->swc->get_command_buffer_size(svga->swc);
 330
 331    /* Flush pending commands to hardware:
 332     */
 333    t0 = svga_get_time(svga);
 334    svga->swc->flush(svga->swc, &fence);
 335    svga->hud.flush_time += (svga_get_time(svga) - t0);
 336
 337    svga->hud.num_flushes++;
 338
 339    svga_screen_cache_flush(svgascreen, fence);
 340
 341    /* To force the re-emission of rendertargets and texture sampler bindings on
 342     * the next command buffer.
 343     */
 344    svga->rebind.flags.rendertargets = TRUE;
 345    svga->rebind.flags.texture_samplers = TRUE;
 346
 347    if (svga_have_gb_objects(svga)) {
 348
 349       svga->rebind.flags.constbufs = TRUE;
 350       svga->rebind.flags.vs = TRUE;
 351       svga->rebind.flags.fs = TRUE;
 352       svga->rebind.flags.gs = TRUE;
 353
 354       if (svga_need_to_rebind_resources(svga)) {
 355          svga->rebind.flags.query = TRUE;
 356       }
 357    }
 358
 359    if (SVGA_DEBUG & DEBUG_SYNC) {
 360       if (fence)
 361          svga->pipe.screen->fence_finish( svga->pipe.screen, NULL, fence,
 362                                           PIPE_TIMEOUT_INFINITE);
 363    }
 364
 365    if (pfence)
 366       svgascreen->sws->fence_reference(svgascreen->sws, pfence, fence);
 367
 368    svgascreen->sws->fence_reference(svgascreen->sws, &fence, NULL);
 369
 370    SVGA_STATS_TIME_POP(svga_sws(svga));
 371 }
 372
 373
 374 /**
 375  * Flush pending commands and wait for completion with a fence.
 376  */
 377 void
 378 svga_context_finish(struct svga_context *svga)
 379 {
 380    struct pipe_screen *screen = svga->pipe.screen;
 381    struct pipe_fence_handle *fence = NULL;
 382
 383    svga_context_flush(svga, &fence);
 384    screen->fence_finish(screen, NULL, fence, PIPE_TIMEOUT_INFINITE);
 385    screen->fence_reference(screen, &fence, NULL);
 386 }
 387
 388
 389 /**
 390  * Emit pending drawing commands to the command buffer.
 391  * If the command buffer overflows, we flush it and retry.
 392  * \sa svga_hwtnl_flush()
 393  */
 394 void svga_hwtnl_flush_retry( struct svga_context *svga )
 395 {
 396    enum pipe_error ret = PIPE_OK;
 397
 398    ret = svga_hwtnl_flush( svga->hwtnl );
 399    if (ret == PIPE_ERROR_OUT_OF_MEMORY) {
 400       svga_context_flush( svga, NULL );
 401       ret = svga_hwtnl_flush( svga->hwtnl );
 402    }
 403
 404    assert(ret == PIPE_OK);
 405 }
 406
 407
 408 /**
 409  * Flush the primitive queue if this buffer is referred.
 410  *
 411  * Otherwise DMA commands on the referred buffer will be emitted too late.
 412  */
 413 void svga_hwtnl_flush_buffer( struct svga_context *svga,
 414                               struct pipe_resource *buffer )
 415 {
 416    if (svga_hwtnl_is_buffer_referred(svga->hwtnl, buffer)) {
 417       svga_hwtnl_flush_retry(svga);
 418    }
 419 }
 420
 421
 422 /* Emit all operations pending on host surfaces.
 423  */
 424 void svga_surfaces_flush(struct svga_context *svga)
 425 {
 426    SVGA_STATS_TIME_PUSH(svga_sws(svga), SVGA_STATS_TIME_SURFACEFLUSH);
 427
 428    /* Emit buffered drawing commands.
 429     */
 430    svga_hwtnl_flush_retry( svga );
 431
 432    /* Emit back-copy from render target views to textures.
 433     */
 434    svga_propagate_rendertargets(svga);
 435
 436    SVGA_STATS_TIME_POP(svga_sws(svga));
 437 }
 438
 439
 440 struct svga_winsys_context *
 441 svga_winsys_context( struct pipe_context *pipe )
 442 {
 443    return svga_context( pipe )->swc;
 444 }