src/gallium/drivers/r300/r300_context.c

   1 /*
   2  * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * on the rights to use, copy, modify, merge, publish, distribute, sub
   8  * license, and/or sell copies of the Software, and to permit persons to whom
   9  * the Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  21  * USE OR OTHER DEALINGS IN THE SOFTWARE. */
  22
  23 #include "draw/draw_context.h"
  24
  25 #include "util/u_memory.h"
  26 #include "util/u_sampler.h"
  27 #include "util/u_simple_list.h"
  28 #include "util/u_upload_mgr.h"
  29
  30 #include "r300_cb.h"
  31 #include "r300_context.h"
  32 #include "r300_emit.h"
  33 #include "r300_screen.h"
  34 #include "r300_screen_buffer.h"
  35 #include "r300_state_invariant.h"
  36 #include "r300_winsys.h"
  37
  38 #include <inttypes.h>
  39
  40 static void r300_destroy_context(struct pipe_context* context)
  41 {
  42     struct r300_context* r300 = r300_context(context);
  43     struct r300_query *query, *temp;
  44     struct r300_atom *atom;
  45
  46     if (r300->texkill_sampler) {
  47         pipe_sampler_view_reference(
  48                 (struct pipe_sampler_view**)&r300->texkill_sampler,
  49                 NULL);
  50     }
  51
  52     util_blitter_destroy(r300->blitter);
  53     draw_destroy(r300->draw);
  54
  55     /* Print stats, if enabled. */
  56     if (SCREEN_DBG_ON(r300->screen, DBG_STATS)) {
  57         fprintf(stderr, "r300: Stats for context %p:\n", r300);
  58         fprintf(stderr, "    : Flushes: %" PRIu64 "\n", r300->flush_counter);
  59         foreach(atom, &r300->atom_list) {
  60             fprintf(stderr, "    : %s: %" PRIu64 " emits\n",
  61                 atom->name, atom->counter);
  62         }
  63     }
  64
  65     /* If there are any queries pending or not destroyed, remove them now. */
  66     foreach_s(query, temp, &r300->query_list) {
  67         remove_from_list(query);
  68         FREE(query);
  69     }
  70
  71     u_upload_destroy(r300->upload_vb);
  72     u_upload_destroy(r300->upload_ib);
  73
  74     translate_cache_destroy(r300->tran.translate_cache);
  75
  76     FREE(r300->aa_state.state);
  77     FREE(r300->blend_color_state.state);
  78     FREE(r300->clip_state.state);
  79     FREE(r300->fb_state.state);
  80     FREE(r300->gpu_flush.state);
  81     FREE(r300->rs_block_state.state);
  82     FREE(r300->scissor_state.state);
  83     FREE(r300->textures_state.state);
  84     FREE(r300->vap_invariant_state.state);
  85     FREE(r300->viewport_state.state);
  86     FREE(r300->ztop_state.state);
  87     FREE(r300->fs_constants.state);
  88     FREE(r300->vs_constants.state);
  89     if (!r300->screen->caps.has_tcl) {
  90         FREE(r300->vertex_stream_state.state);
  91     }
  92     FREE(r300);
  93 }
  94
  95 static void r300_flush_cb(void *data)
  96 {
  97     struct r300_context* const cs_context_copy = data;
  98
  99     cs_context_copy->context.flush(&cs_context_copy->context, 0, NULL);
 100 }
 101
 102 #define R300_INIT_ATOM(atomname, atomsize) \
 103     r300->atomname.name = #atomname; \
 104     r300->atomname.state = NULL; \
 105     r300->atomname.size = atomsize; \
 106     r300->atomname.emit = r300_emit_##atomname; \
 107     r300->atomname.dirty = FALSE; \
 108     insert_at_tail(&r300->atom_list, &r300->atomname);
 109
 110 static void r300_setup_atoms(struct r300_context* r300)
 111 {
 112     boolean is_r500 = r300->screen->caps.is_r500;
 113     boolean has_tcl = r300->screen->caps.has_tcl;
 114
 115     /* Create the actual atom list.
 116      *
 117      * Each atom is examined and emitted in the order it appears here, which
 118      * can affect performance and conformance if not handled with care.
 119      *
 120      * Some atoms never change size, others change every emit - those have
 121      * the size of 0 here. */
 122     make_empty_list(&r300->atom_list);
 123     /* GB (unpipelined), RB3D (unpipelined), ZB (unpipelined), US, SC. */
 124     R300_INIT_ATOM(gpu_flush, 9);
 125     R300_INIT_ATOM(aa_state, 4);
 126     R300_INIT_ATOM(fb_state, 0);
 127     R300_INIT_ATOM(ztop_state, 2);
 128     /* ZB, FG. */
 129     R300_INIT_ATOM(dsa_state, is_r500 ? 8 : 6);
 130     /* RB3D. */
 131     R300_INIT_ATOM(blend_state, 8);
 132     R300_INIT_ATOM(blend_color_state, is_r500 ? 3 : 2);
 133     /* SC. */
 134     R300_INIT_ATOM(scissor_state, 3);
 135     /* GB, FG, GA, SU, SC, RB3D. */
 136     R300_INIT_ATOM(invariant_state, 22);
 137     /* VAP. */
 138     R300_INIT_ATOM(viewport_state, 9);
 139     R300_INIT_ATOM(pvs_flush, 2);
 140     R300_INIT_ATOM(vap_invariant_state, 9);
 141     R300_INIT_ATOM(vertex_stream_state, 0);
 142     R300_INIT_ATOM(vs_state, 0);
 143     R300_INIT_ATOM(vs_constants, 0);
 144     R300_INIT_ATOM(clip_state, has_tcl ? 5 + (6 * 4) : 2);
 145     /* VAP, RS, GA, GB. */
 146     R300_INIT_ATOM(rs_block_state, 0);
 147     R300_INIT_ATOM(rs_state, 0);
 148     /* US. */
 149     R300_INIT_ATOM(fs, 0);
 150     R300_INIT_ATOM(fs_rc_constant_state, 0);
 151     R300_INIT_ATOM(fs_constants, 0);
 152     /* TX. */
 153     R300_INIT_ATOM(texture_cache_inval, 2);
 154     R300_INIT_ATOM(textures_state, 0);
 155     /* ZB (unpipelined), SU. */
 156     R300_INIT_ATOM(query_start, 4);
 157
 158     /* Replace emission functions for r500. */
 159     if (is_r500) {
 160         r300->fs.emit = r500_emit_fs;
 161         r300->fs_rc_constant_state.emit = r500_emit_fs_rc_constant_state;
 162         r300->fs_constants.emit = r500_emit_fs_constants;
 163     }
 164
 165     /* Some non-CSO atoms need explicit space to store the state locally. */
 166     r300->aa_state.state = CALLOC_STRUCT(r300_aa_state);
 167     r300->blend_color_state.state = CALLOC_STRUCT(r300_blend_color_state);
 168     r300->clip_state.state = CALLOC_STRUCT(r300_clip_state);
 169     r300->fb_state.state = CALLOC_STRUCT(pipe_framebuffer_state);
 170     r300->gpu_flush.state = CALLOC_STRUCT(pipe_framebuffer_state);
 171     r300->rs_block_state.state = CALLOC_STRUCT(r300_rs_block);
 172     r300->scissor_state.state = CALLOC_STRUCT(pipe_scissor_state);
 173     r300->textures_state.state = CALLOC_STRUCT(r300_textures_state);
 174     r300->vap_invariant_state.state = CALLOC_STRUCT(r300_vap_invariant_state);
 175     r300->viewport_state.state = CALLOC_STRUCT(r300_viewport_state);
 176     r300->ztop_state.state = CALLOC_STRUCT(r300_ztop_state);
 177     r300->fs_constants.state = CALLOC_STRUCT(r300_constant_buffer);
 178     r300->vs_constants.state = CALLOC_STRUCT(r300_constant_buffer);
 179     if (!r300->screen->caps.has_tcl) {
 180         r300->vertex_stream_state.state = CALLOC_STRUCT(r300_vertex_stream_state);
 181     }
 182
 183     /* Some non-CSO atoms don't use the state pointer. */
 184     r300->invariant_state.allow_null_state = TRUE;
 185     r300->fs_rc_constant_state.allow_null_state = TRUE;
 186     r300->pvs_flush.allow_null_state = TRUE;
 187     r300->query_start.allow_null_state = TRUE;
 188     r300->texture_cache_inval.allow_null_state = TRUE;
 189
 190     /* Some states must be marked dirty here to properly set up
 191      * hardware in the first command stream. */
 192     r300->invariant_state.dirty = TRUE;
 193     r300->pvs_flush.dirty = TRUE;
 194     r300->vap_invariant_state.dirty = TRUE;
 195     r300->texture_cache_inval.dirty = TRUE;
 196     r300->textures_state.dirty = TRUE;
 197 }
 198
 199 /* Not every state tracker calls every driver function before the first draw
 200  * call and we must initialize the command buffers somehow. */
 201 static void r300_init_states(struct pipe_context *pipe)
 202 {
 203     struct r300_context *r300 = r300_context(pipe);
 204     struct pipe_blend_color bc = {{0}};
 205     struct pipe_clip_state cs = {{{0}}};
 206     struct pipe_scissor_state ss = {0};
 207     struct r300_clip_state *clip =
 208             (struct r300_clip_state*)r300->clip_state.state;
 209     struct r300_gpu_flush *gpuflush =
 210             (struct r300_gpu_flush*)r300->gpu_flush.state;
 211     struct r300_vap_invariant_state *vap_invariant =
 212             (struct r300_vap_invariant_state*)r300->vap_invariant_state.state;
 213     CB_LOCALS;
 214
 215     pipe->set_blend_color(pipe, &bc);
 216     pipe->set_scissor_state(pipe, &ss);
 217
 218     /* Initialize the clip state. */
 219     if (r300_context(pipe)->screen->caps.has_tcl) {
 220         pipe->set_clip_state(pipe, &cs);
 221     } else {
 222         BEGIN_CB(clip->cb, 2);
 223         OUT_CB_REG(R300_VAP_CLIP_CNTL, R300_CLIP_DISABLE);
 224         END_CB;
 225     }
 226
 227     /* Initialize the GPU flush. */
 228     {
 229         BEGIN_CB(gpuflush->cb_flush_clean, 6);
 230
 231         /* Flush and free renderbuffer caches. */
 232         OUT_CB_REG(R300_RB3D_DSTCACHE_CTLSTAT,
 233             R300_RB3D_DSTCACHE_CTLSTAT_DC_FREE_FREE_3D_TAGS |
 234             R300_RB3D_DSTCACHE_CTLSTAT_DC_FLUSH_FLUSH_DIRTY_3D);
 235         OUT_CB_REG(R300_ZB_ZCACHE_CTLSTAT,
 236             R300_ZB_ZCACHE_CTLSTAT_ZC_FLUSH_FLUSH_AND_FREE |
 237             R300_ZB_ZCACHE_CTLSTAT_ZC_FREE_FREE);
 238
 239         /* Wait until the GPU is idle.
 240          * This fixes random pixels sometimes appearing probably caused
 241          * by incomplete rendering. */
 242         OUT_CB_REG(RADEON_WAIT_UNTIL, RADEON_WAIT_3D_IDLECLEAN);
 243         END_CB;
 244     }
 245
 246     /* Initialize the VAP invariant state. */
 247     {
 248         BEGIN_CB(vap_invariant->cb, 9);
 249         OUT_CB_REG(VAP_PVS_VTX_TIMEOUT_REG, 0xffff);
 250         OUT_CB_REG_SEQ(R300_VAP_GB_VERT_CLIP_ADJ, 4);
 251         OUT_CB_32F(1.0);
 252         OUT_CB_32F(1.0);
 253         OUT_CB_32F(1.0);
 254         OUT_CB_32F(1.0);
 255         OUT_CB_REG(R300_VAP_PSC_SGN_NORM_CNTL, R300_SGN_NORM_NO_ZERO);
 256         END_CB;
 257     }
 258 }
 259
 260 struct pipe_context* r300_create_context(struct pipe_screen* screen,
 261                                          void *priv)
 262 {
 263     struct r300_context* r300 = CALLOC_STRUCT(r300_context);
 264     struct r300_screen* r300screen = r300_screen(screen);
 265     struct r300_winsys_screen *rws = r300screen->rws;
 266
 267     if (!r300)
 268         return NULL;
 269
 270     r300->rws = rws;
 271     r300->screen = r300screen;
 272
 273     r300->context.winsys = (struct pipe_winsys*)rws;
 274     r300->context.screen = screen;
 275     r300->context.priv = priv;
 276
 277     r300->context.destroy = r300_destroy_context;
 278
 279     if (!r300screen->caps.has_tcl) {
 280         /* Create a Draw. This is used for SW TCL. */
 281         r300->draw = draw_create(&r300->context);
 282         /* Enable our renderer. */
 283         draw_set_rasterize_stage(r300->draw, r300_draw_stage(r300));
 284         /* Enable Draw's clipping. */
 285         draw_set_driver_clipping(r300->draw, FALSE);
 286         /* Disable converting points/lines to triangles. */
 287         draw_wide_line_threshold(r300->draw, 10000000.f);
 288         draw_wide_point_threshold(r300->draw, 10000000.f);
 289     }
 290
 291     r300_setup_atoms(r300);
 292
 293     make_empty_list(&r300->query_list);
 294
 295     r300_init_blit_functions(r300);
 296     r300_init_flush_functions(r300);
 297     r300_init_query_functions(r300);
 298     r300_init_render_functions(r300);
 299     r300_init_state_functions(r300);
 300     r300_init_resource_functions(r300);
 301
 302     rws->set_flush_cb(r300->rws, r300_flush_cb, r300);
 303     r300->dirty_hw++;
 304
 305     r300->blitter = util_blitter_create(&r300->context);
 306
 307     r300->upload_ib = u_upload_create(&r300->context,
 308                                       32 * 1024, 16,
 309                                       PIPE_BIND_INDEX_BUFFER);
 310
 311     if (r300->upload_ib == NULL)
 312         goto no_upload_ib;
 313
 314     r300->upload_vb = u_upload_create(&r300->context,
 315                                       128 * 1024, 16,
 316                                       PIPE_BIND_VERTEX_BUFFER);
 317     if (r300->upload_vb == NULL)
 318         goto no_upload_vb;
 319
 320     r300->tran.translate_cache = translate_cache_create();
 321
 322     r300_init_states(&r300->context);
 323
 324     /* The KIL opcode needs the first texture unit to be enabled
 325      * on r3xx-r4xx. In order to calm down the CS checker, we bind this
 326      * dummy texture there. */
 327     if (!r300->screen->caps.is_r500) {
 328         struct pipe_resource *tex;
 329         struct pipe_resource rtempl = {{0}};
 330         struct pipe_sampler_view vtempl = {{0}};
 331
 332         rtempl.target = PIPE_TEXTURE_2D;
 333         rtempl.format = PIPE_FORMAT_I8_UNORM;
 334         rtempl.bind = PIPE_BIND_SAMPLER_VIEW;
 335         rtempl.width0 = 1;
 336         rtempl.height0 = 1;
 337         rtempl.depth0 = 1;
 338         tex = screen->resource_create(screen, &rtempl);
 339
 340         u_sampler_view_default_template(&vtempl, tex, tex->format);
 341
 342         r300->texkill_sampler = (struct r300_sampler_view*)
 343             r300->context.create_sampler_view(&r300->context, tex, &vtempl);
 344
 345         pipe_resource_reference(&tex, NULL);
 346     }
 347
 348     return &r300->context;
 349
 350  no_upload_ib:
 351     u_upload_destroy(r300->upload_ib);
 352  no_upload_vb:
 353     FREE(r300);
 354     return NULL;
 355 }
 356
 357 boolean r300_check_cs(struct r300_context *r300, unsigned size)
 358 {
 359     return size <= r300->rws->get_cs_free_dwords(r300->rws);
 360 }
 361
 362 void r300_finish(struct r300_context *r300)
 363 {
 364     struct pipe_framebuffer_state *fb;
 365     unsigned i;
 366
 367     /* This is a preliminary implementation of glFinish.
 368      *
 369      * The ideal implementation should use something like EmitIrqLocked and
 370      * WaitIrq, or better, real fences.
 371      */
 372     if (r300->fb_state.state) {
 373         fb = r300->fb_state.state;
 374
 375         for (i = 0; i < fb->nr_cbufs; i++) {
 376             if (fb->cbufs[i]->texture) {
 377                 r300->rws->buffer_wait(r300->rws,
 378                     r300_texture(fb->cbufs[i]->texture)->buffer);
 379                 return;
 380             }
 381         }
 382         if (fb->zsbuf && fb->zsbuf->texture) {
 383             r300->rws->buffer_wait(r300->rws,
 384                 r300_texture(fb->zsbuf->texture)->buffer);
 385         }
 386     }
 387 }