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 #define CONST0_UPLOAD_ALIGNMENT 256
  50
  51 DEBUG_GET_ONCE_BOOL_OPTION(no_swtnl, "SVGA_NO_SWTNL", FALSE)
  52 DEBUG_GET_ONCE_BOOL_OPTION(force_swtnl, "SVGA_FORCE_SWTNL", FALSE);
  53 DEBUG_GET_ONCE_BOOL_OPTION(use_min_mipmap, "SVGA_USE_MIN_MIPMAP", FALSE);
  54 DEBUG_GET_ONCE_NUM_OPTION(disable_shader, "SVGA_DISABLE_SHADER", ~0);
  55 DEBUG_GET_ONCE_BOOL_OPTION(no_line_width, "SVGA_NO_LINE_WIDTH", FALSE);
  56 DEBUG_GET_ONCE_BOOL_OPTION(force_hw_line_stipple, "SVGA_FORCE_HW_LINE_STIPPLE", FALSE);
  57
  58 static void 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 < Elements(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 polygon stipple state */
  71    if (svga->polygon_stipple.sampler) {
  72       pipe->delete_sampler_state(pipe, svga->polygon_stipple.sampler);
  73    }
  74    if (svga->polygon_stipple.sampler_view) {
  75       pipe->sampler_view_destroy(pipe,
  76                                  &svga->polygon_stipple.sampler_view->base);
  77    }
  78    pipe_resource_reference(&svga->polygon_stipple.texture, NULL);
  79
  80    /* free HW constant buffers */
  81    for (shader = 0; shader < Elements(svga->state.hw_draw.constbuf); shader++) {
  82       pipe_resource_reference(&svga->state.hw_draw.constbuf[shader], NULL);
  83    }
  84
  85    pipe->delete_blend_state(pipe, svga->noop_blend);
  86
  87    /* free query gb object */
  88    if (svga->gb_query) {
  89       pipe->destroy_query(pipe, NULL);
  90       svga->gb_query = NULL;
  91    }
  92
  93    util_blitter_destroy(svga->blitter);
  94
  95    svga_cleanup_framebuffer( svga );
  96    svga_cleanup_tss_binding( svga );
  97
  98    svga_cleanup_vertex_state(svga);
  99
 100    svga_destroy_swtnl( svga );
 101    svga_hwtnl_destroy( svga->hwtnl );
 102
 103    svga->swc->destroy(svga->swc);
 104
 105    util_bitmask_destroy(svga->blend_object_id_bm);
 106    util_bitmask_destroy(svga->ds_object_id_bm);
 107    util_bitmask_destroy(svga->input_element_object_id_bm);
 108    util_bitmask_destroy(svga->rast_object_id_bm);
 109    util_bitmask_destroy(svga->sampler_object_id_bm);
 110    util_bitmask_destroy(svga->sampler_view_id_bm);
 111    util_bitmask_destroy(svga->shader_id_bm);
 112    util_bitmask_destroy(svga->surface_view_id_bm);
 113    util_bitmask_destroy(svga->stream_output_id_bm);
 114    util_bitmask_destroy(svga->query_id_bm);
 115    u_upload_destroy(svga->const0_upload);
 116
 117    /* free user's constant buffers */
 118    for (shader = 0; shader < PIPE_SHADER_TYPES; ++shader) {
 119       for (i = 0; i < Elements(svga->curr.constbufs[shader]); ++i) {
 120          pipe_resource_reference(&svga->curr.constbufs[shader][i].buffer, NULL);
 121       }
 122    }
 123
 124    FREE( svga );
 125 }
 126
 127
 128
 129 struct pipe_context *svga_context_create(struct pipe_screen *screen,
 130                                          void *priv, unsigned flags)
 131 {
 132    struct svga_screen *svgascreen = svga_screen(screen);
 133    struct svga_context *svga = NULL;
 134    enum pipe_error ret;
 135
 136    svga = CALLOC_STRUCT(svga_context);
 137    if (!svga)
 138       goto cleanup;
 139
 140    LIST_INITHEAD(&svga->dirty_buffers);
 141
 142    svga->pipe.screen = screen;
 143    svga->pipe.priv = priv;
 144    svga->pipe.destroy = svga_destroy;
 145    svga->pipe.clear = svga_clear;
 146
 147    svga->swc = svgascreen->sws->context_create(svgascreen->sws);
 148    if (!svga->swc)
 149       goto cleanup;
 150
 151    svga_init_resource_functions(svga);
 152    svga_init_blend_functions(svga);
 153    svga_init_blit_functions(svga);
 154    svga_init_depth_stencil_functions(svga);
 155    svga_init_draw_functions(svga);
 156    svga_init_flush_functions(svga);
 157    svga_init_misc_functions(svga);
 158    svga_init_rasterizer_functions(svga);
 159    svga_init_sampler_functions(svga);
 160    svga_init_fs_functions(svga);
 161    svga_init_vs_functions(svga);
 162    svga_init_gs_functions(svga);
 163    svga_init_vertex_functions(svga);
 164    svga_init_constbuffer_functions(svga);
 165    svga_init_query_functions(svga);
 166    svga_init_surface_functions(svga);
 167    svga_init_stream_output_functions(svga);
 168
 169    /* init misc state */
 170    svga->curr.sample_mask = ~0;
 171
 172    /* debug */
 173    svga->debug.no_swtnl = debug_get_option_no_swtnl();
 174    svga->debug.force_swtnl = debug_get_option_force_swtnl();
 175    svga->debug.use_min_mipmap = debug_get_option_use_min_mipmap();
 176    svga->debug.disable_shader = debug_get_option_disable_shader();
 177    svga->debug.no_line_width = debug_get_option_no_line_width();
 178    svga->debug.force_hw_line_stipple = debug_get_option_force_hw_line_stipple();
 179
 180    if (!(svga->blend_object_id_bm = util_bitmask_create()))
 181       goto cleanup;
 182
 183    if (!(svga->ds_object_id_bm = util_bitmask_create()))
 184       goto cleanup;
 185
 186    if (!(svga->input_element_object_id_bm = util_bitmask_create()))
 187       goto cleanup;
 188
 189    if (!(svga->rast_object_id_bm = util_bitmask_create()))
 190       goto cleanup;
 191
 192    if (!(svga->sampler_object_id_bm = util_bitmask_create()))
 193       goto cleanup;
 194
 195    if (!(svga->sampler_view_id_bm = util_bitmask_create()))
 196       goto cleanup;
 197
 198    if (!(svga->shader_id_bm = util_bitmask_create()))
 199       goto cleanup;
 200
 201    if (!(svga->surface_view_id_bm = util_bitmask_create()))
 202       goto cleanup;
 203
 204    if (!(svga->stream_output_id_bm = util_bitmask_create()))
 205       goto cleanup;
 206
 207    if (!(svga->query_id_bm = util_bitmask_create()))
 208       goto cleanup;
 209
 210    svga->hwtnl = svga_hwtnl_create(svga);
 211    if (svga->hwtnl == NULL)
 212       goto cleanup;
 213
 214    if (!svga_init_swtnl(svga))
 215       goto cleanup;
 216
 217    ret = svga_emit_initial_state( svga );
 218    if (ret != PIPE_OK)
 219       goto cleanup;
 220
 221    svga->const0_upload = u_upload_create(&svga->pipe,
 222                                          CONST0_UPLOAD_DEFAULT_SIZE,
 223                                          CONST0_UPLOAD_ALIGNMENT,
 224                                          PIPE_BIND_CONSTANT_BUFFER);
 225    if (!svga->const0_upload)
 226       goto cleanup;
 227
 228    /* Avoid shortcircuiting state with initial value of zero.
 229     */
 230    memset(&svga->state.hw_clear, 0xcd, sizeof(svga->state.hw_clear));
 231    memset(&svga->state.hw_clear.framebuffer, 0x0,
 232           sizeof(svga->state.hw_clear.framebuffer));
 233
 234    memset(&svga->state.hw_draw, 0xcd, sizeof(svga->state.hw_draw));
 235    memset(&svga->state.hw_draw.views, 0x0, sizeof(svga->state.hw_draw.views));
 236    memset(&svga->state.hw_draw.num_sampler_views, 0,
 237       sizeof(svga->state.hw_draw.num_sampler_views));
 238    svga->state.hw_draw.num_views = 0;
 239
 240    /* Initialize the shader pointers */
 241    svga->state.hw_draw.vs = NULL;
 242    svga->state.hw_draw.gs = NULL;
 243    svga->state.hw_draw.fs = NULL;
 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
 251    /* Create a no-operation blend state which we will bind whenever the
 252     * requested blend state is impossible (e.g. due to having an integer
 253     * render target attached).
 254     *
 255     * XXX: We will probably actually need 16 of these, one for each possible
 256     * RGBA color mask (4 bits).  Then, we would bind the one with a color mask
 257     * matching the blend state it is replacing.
 258     */
 259    {
 260       struct pipe_blend_state noop_tmpl = {0};
 261       unsigned i;
 262
 263       for (i = 0; i < PIPE_MAX_COLOR_BUFS; ++i) {
 264          // Set the color mask to all-ones.  Later this may change.
 265          noop_tmpl.rt[i].colormask = PIPE_MASK_RGBA;
 266       }
 267       svga->noop_blend = svga->pipe.create_blend_state(&svga->pipe, &noop_tmpl);
 268    }
 269
 270    svga->dirty = ~0;
 271
 272    return &svga->pipe;
 273
 274 cleanup:
 275    svga_destroy_swtnl(svga);
 276
 277    if (svga->const0_upload)
 278       u_upload_destroy(svga->const0_upload);
 279    if (svga->hwtnl)
 280       svga_hwtnl_destroy(svga->hwtnl);
 281    if (svga->swc)
 282       svga->swc->destroy(svga->swc);
 283    util_bitmask_destroy(svga->blend_object_id_bm);
 284    util_bitmask_destroy(svga->ds_object_id_bm);
 285    util_bitmask_destroy(svga->input_element_object_id_bm);
 286    util_bitmask_destroy(svga->rast_object_id_bm);
 287    util_bitmask_destroy(svga->sampler_object_id_bm);
 288    util_bitmask_destroy(svga->sampler_view_id_bm);
 289    util_bitmask_destroy(svga->shader_id_bm);
 290    util_bitmask_destroy(svga->surface_view_id_bm);
 291    util_bitmask_destroy(svga->stream_output_id_bm);
 292    util_bitmask_destroy(svga->query_id_bm);
 293    FREE(svga);
 294    return NULL;
 295 }
 296
 297
 298 void svga_context_flush( struct svga_context *svga,
 299                          struct pipe_fence_handle **pfence )
 300 {
 301    struct svga_screen *svgascreen = svga_screen(svga->pipe.screen);
 302    struct pipe_fence_handle *fence = NULL;
 303
 304    svga->curr.nr_fbs = 0;
 305
 306    /* Ensure that texture dma uploads are processed
 307     * before submitting commands.
 308     */
 309    svga_context_flush_buffers(svga);
 310
 311    /* Flush pending commands to hardware:
 312     */
 313    svga->swc->flush(svga->swc, &fence);
 314
 315    svga->hud.num_flushes++;
 316
 317    svga_screen_cache_flush(svgascreen, fence);
 318
 319    /* To force the re-emission of rendertargets and texture sampler bindings on
 320     * the next command buffer.
 321     */
 322    svga->rebind.flags.rendertargets = TRUE;
 323    svga->rebind.flags.texture_samplers = TRUE;
 324
 325    if (svga_have_gb_objects(svga)) {
 326
 327       svga->rebind.flags.constbufs = TRUE;
 328       svga->rebind.flags.vs = TRUE;
 329       svga->rebind.flags.fs = TRUE;
 330       svga->rebind.flags.gs = TRUE;
 331
 332       if (svga_need_to_rebind_resources(svga)) {
 333          svga->rebind.flags.query = TRUE;
 334       }
 335    }
 336
 337    if (SVGA_DEBUG & DEBUG_SYNC) {
 338       if (fence)
 339          svga->pipe.screen->fence_finish( svga->pipe.screen, fence,
 340                                           PIPE_TIMEOUT_INFINITE);
 341    }
 342
 343    if (pfence)
 344       svgascreen->sws->fence_reference(svgascreen->sws, pfence, fence);
 345
 346    svgascreen->sws->fence_reference(svgascreen->sws, &fence, NULL);
 347 }
 348
 349
 350 /**
 351  * Flush pending commands and wait for completion with a fence.
 352  */
 353 void
 354 svga_context_finish(struct svga_context *svga)
 355 {
 356    struct pipe_screen *screen = svga->pipe.screen;
 357    struct pipe_fence_handle *fence = NULL;
 358
 359    svga_context_flush(svga, &fence);
 360    svga->pipe.screen->fence_finish(screen, fence, PIPE_TIMEOUT_INFINITE);
 361    screen->fence_reference(screen, &fence, NULL);
 362 }
 363
 364
 365 /**
 366  * Emit pending drawing commands to the command buffer.
 367  * If the command buffer overflows, we flush it and retry.
 368  * \sa svga_hwtnl_flush()
 369  */
 370 void svga_hwtnl_flush_retry( struct svga_context *svga )
 371 {
 372    enum pipe_error ret = PIPE_OK;
 373
 374    ret = svga_hwtnl_flush( svga->hwtnl );
 375    if (ret == PIPE_ERROR_OUT_OF_MEMORY) {
 376       svga_context_flush( svga, NULL );
 377       ret = svga_hwtnl_flush( svga->hwtnl );
 378    }
 379
 380    assert(ret == PIPE_OK);
 381 }
 382
 383
 384 /**
 385  * Flush the primitive queue if this buffer is referred.
 386  *
 387  * Otherwise DMA commands on the referred buffer will be emitted too late.
 388  */
 389 void svga_hwtnl_flush_buffer( struct svga_context *svga,
 390                               struct pipe_resource *buffer )
 391 {
 392    if (svga_hwtnl_is_buffer_referred(svga->hwtnl, buffer)) {
 393       svga_hwtnl_flush_retry(svga);
 394    }
 395 }
 396
 397
 398 /* Emit all operations pending on host surfaces.
 399  */
 400 void svga_surfaces_flush(struct svga_context *svga)
 401 {
 402    struct svga_screen *svgascreen = svga_screen(svga->pipe.screen);
 403    unsigned i;
 404
 405    /* Emit buffered drawing commands.
 406     */
 407    svga_hwtnl_flush_retry( svga );
 408
 409    /* Emit back-copy from render target view to texture.
 410     */
 411    for (i = 0; i < svgascreen->max_color_buffers; i++) {
 412       if (svga->curr.framebuffer.cbufs[i])
 413          svga_propagate_surface(svga, svga->curr.framebuffer.cbufs[i]);
 414    }
 415
 416    if (svga->curr.framebuffer.zsbuf)
 417       svga_propagate_surface(svga, svga->curr.framebuffer.zsbuf);
 418
 419 }
 420
 421
 422 struct svga_winsys_context *
 423 svga_winsys_context( struct pipe_context *pipe )
 424 {
 425    return svga_context( pipe )->swc;
 426 }