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