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->blend_color_state.state);
  77     FREE(r300->clip_state.state);
  78     FREE(r300->fb_state.state);
  79     FREE(r300->rs_block_state.state);
  80     FREE(r300->scissor_state.state);
  81     FREE(r300->textures_state.state);
  82     FREE(r300->viewport_state.state);
  83     FREE(r300->ztop_state.state);
  84     FREE(r300->fs_constants.state);
  85     FREE(r300->vs_constants.state);
  86     if (!r300->screen->caps.has_tcl) {
  87         FREE(r300->vertex_stream_state.state);
  88     }
  89     FREE(r300);
  90 }
  91
  92 static void r300_flush_cb(void *data)
  93 {
  94     struct r300_context* const cs_context_copy = data;
  95
  96     cs_context_copy->context.flush(&cs_context_copy->context, 0, NULL);
  97 }
  98
  99 #define R300_INIT_ATOM(atomname, atomsize) \
 100     r300->atomname.name = #atomname; \
 101     r300->atomname.state = NULL; \
 102     r300->atomname.size = atomsize; \
 103     r300->atomname.emit = r300_emit_##atomname; \
 104     r300->atomname.dirty = FALSE; \
 105     insert_at_tail(&r300->atom_list, &r300->atomname);
 106
 107 static void r300_setup_atoms(struct r300_context* r300)
 108 {
 109     boolean is_r500 = r300->screen->caps.is_r500;
 110     boolean has_tcl = r300->screen->caps.has_tcl;
 111
 112     /* Create the actual atom list.
 113      *
 114      * Each atom is examined and emitted in the order it appears here, which
 115      * can affect performance and conformance if not handled with care.
 116      *
 117      * Some atoms never change size, others change every emit - those have
 118      * the size of 0 here. */
 119     make_empty_list(&r300->atom_list);
 120     R300_INIT_ATOM(invariant_state, 71);
 121     R300_INIT_ATOM(ztop_state, 2);
 122     R300_INIT_ATOM(query_start, 4);
 123     R300_INIT_ATOM(blend_state, 8);
 124     R300_INIT_ATOM(blend_color_state, is_r500 ? 3 : 2);
 125     R300_INIT_ATOM(clip_state, has_tcl ? 5 + (6 * 4) : 2);
 126     R300_INIT_ATOM(dsa_state, is_r500 ? 8 : 6);
 127     R300_INIT_ATOM(fb_state, 0);
 128     R300_INIT_ATOM(rs_state, 0);
 129     R300_INIT_ATOM(scissor_state, 3);
 130     R300_INIT_ATOM(viewport_state, 9);
 131     R300_INIT_ATOM(rs_block_state, 0);
 132     R300_INIT_ATOM(vertex_stream_state, 0);
 133     R300_INIT_ATOM(pvs_flush, 2);
 134     R300_INIT_ATOM(vs_state, 0);
 135     R300_INIT_ATOM(vs_constants, 0);
 136     R300_INIT_ATOM(texture_cache_inval, 2);
 137     R300_INIT_ATOM(textures_state, 0);
 138     R300_INIT_ATOM(fs, 0);
 139     R300_INIT_ATOM(fs_rc_constant_state, 0);
 140     R300_INIT_ATOM(fs_constants, 0);
 141
 142     /* Replace emission functions for r500. */
 143     if (r300->screen->caps.is_r500) {
 144         r300->fs.emit = r500_emit_fs;
 145         r300->fs_rc_constant_state.emit = r500_emit_fs_rc_constant_state;
 146         r300->fs_constants.emit = r500_emit_fs_constants;
 147     }
 148
 149     /* Some non-CSO atoms need explicit space to store the state locally. */
 150     r300->blend_color_state.state = CALLOC_STRUCT(r300_blend_color_state);
 151     r300->clip_state.state = CALLOC_STRUCT(r300_clip_state);
 152     r300->fb_state.state = CALLOC_STRUCT(pipe_framebuffer_state);
 153     r300->rs_block_state.state = CALLOC_STRUCT(r300_rs_block);
 154     r300->scissor_state.state = CALLOC_STRUCT(pipe_scissor_state);
 155     r300->textures_state.state = CALLOC_STRUCT(r300_textures_state);
 156     r300->viewport_state.state = CALLOC_STRUCT(r300_viewport_state);
 157     r300->ztop_state.state = CALLOC_STRUCT(r300_ztop_state);
 158     r300->fs_constants.state = CALLOC_STRUCT(r300_constant_buffer);
 159     r300->vs_constants.state = CALLOC_STRUCT(r300_constant_buffer);
 160     if (!r300->screen->caps.has_tcl) {
 161         r300->vertex_stream_state.state = CALLOC_STRUCT(r300_vertex_stream_state);
 162     }
 163
 164     /* Some non-CSO atoms don't use the state pointer. */
 165     r300->invariant_state.allow_null_state = TRUE;
 166     r300->fs_rc_constant_state.allow_null_state = TRUE;
 167     r300->pvs_flush.allow_null_state = TRUE;
 168     r300->query_start.allow_null_state = TRUE;
 169     r300->texture_cache_inval.allow_null_state = TRUE;
 170 }
 171
 172 /* Not every state tracker calls every driver function before the first draw
 173  * call and we must initialize the command buffers somehow. */
 174 static void r300_init_states(struct pipe_context *pipe)
 175 {
 176     struct pipe_blend_color bc = {{0}};
 177     struct pipe_clip_state cs = {{{0}}};
 178     struct pipe_scissor_state ss = {0};
 179     struct r300_clip_state *clip =
 180             (struct r300_clip_state*)r300_context(pipe)->clip_state.state;
 181     CB_LOCALS;
 182
 183     pipe->set_blend_color(pipe, &bc);
 184     pipe->set_scissor_state(pipe, &ss);
 185
 186     if (r300_context(pipe)->screen->caps.has_tcl) {
 187         pipe->set_clip_state(pipe, &cs);
 188     } else {
 189         BEGIN_CB(clip->cb, 2);
 190         OUT_CB_REG(R300_VAP_CLIP_CNTL, R300_CLIP_DISABLE);
 191         END_CB;
 192     }
 193 }
 194
 195 struct pipe_context* r300_create_context(struct pipe_screen* screen,
 196                                          void *priv)
 197 {
 198     struct r300_context* r300 = CALLOC_STRUCT(r300_context);
 199     struct r300_screen* r300screen = r300_screen(screen);
 200     struct r300_winsys_screen *rws = r300screen->rws;
 201
 202     if (!r300)
 203         return NULL;
 204
 205     r300->rws = rws;
 206     r300->screen = r300screen;
 207
 208     r300->context.winsys = (struct pipe_winsys*)rws;
 209     r300->context.screen = screen;
 210     r300->context.priv = priv;
 211
 212     r300->context.destroy = r300_destroy_context;
 213
 214     if (!r300screen->caps.has_tcl) {
 215         /* Create a Draw. This is used for SW TCL. */
 216         r300->draw = draw_create(&r300->context);
 217         /* Enable our renderer. */
 218         draw_set_rasterize_stage(r300->draw, r300_draw_stage(r300));
 219         /* Enable Draw's clipping. */
 220         draw_set_driver_clipping(r300->draw, FALSE);
 221         /* Disable converting points/lines to triangles. */
 222         draw_wide_line_threshold(r300->draw, 10000000.f);
 223         draw_wide_point_threshold(r300->draw, 10000000.f);
 224     }
 225
 226     r300_setup_atoms(r300);
 227
 228     make_empty_list(&r300->query_list);
 229
 230     r300_init_blit_functions(r300);
 231     r300_init_flush_functions(r300);
 232     r300_init_query_functions(r300);
 233     r300_init_render_functions(r300);
 234     r300_init_state_functions(r300);
 235     r300_init_resource_functions(r300);
 236
 237     r300->invariant_state.dirty = TRUE;
 238
 239     rws->set_flush_cb(r300->rws, r300_flush_cb, r300);
 240     r300->dirty_hw++;
 241
 242     r300->blitter = util_blitter_create(&r300->context);
 243
 244     r300->upload_ib = u_upload_create(&r300->context,
 245                                       32 * 1024, 16,
 246                                       PIPE_BIND_INDEX_BUFFER);
 247
 248     if (r300->upload_ib == NULL)
 249         goto no_upload_ib;
 250
 251     r300->upload_vb = u_upload_create(&r300->context,
 252                                       128 * 1024, 16,
 253                                       PIPE_BIND_VERTEX_BUFFER);
 254     if (r300->upload_vb == NULL)
 255         goto no_upload_vb;
 256
 257     r300->tran.translate_cache = translate_cache_create();
 258
 259     r300_init_states(&r300->context);
 260
 261     /* The KIL opcode needs the first texture unit to be enabled
 262      * on r3xx-r4xx. In order to calm down the CS checker, we bind this
 263      * dummy texture there. */
 264     if (!r300->screen->caps.is_r500) {
 265         struct pipe_resource *tex;
 266         struct pipe_resource rtempl = {{0}};
 267         struct pipe_sampler_view vtempl = {{0}};
 268
 269         rtempl.target = PIPE_TEXTURE_2D;
 270         rtempl.format = PIPE_FORMAT_I8_UNORM;
 271         rtempl.bind = PIPE_BIND_SAMPLER_VIEW;
 272         rtempl.width0 = 1;
 273         rtempl.height0 = 1;
 274         rtempl.depth0 = 1;
 275         tex = screen->resource_create(screen, &rtempl);
 276
 277         u_sampler_view_default_template(&vtempl, tex, tex->format);
 278
 279         r300->texkill_sampler = (struct r300_sampler_view*)
 280             r300->context.create_sampler_view(&r300->context, tex, &vtempl);
 281
 282         pipe_resource_reference(&tex, NULL);
 283
 284         /* This will make sure that the dummy texture is set up
 285          * from the beginning even if an application does not use
 286          * textures. */
 287         r300->textures_state.dirty = TRUE;
 288     }
 289
 290     return &r300->context;
 291
 292  no_upload_ib:
 293     u_upload_destroy(r300->upload_ib);
 294  no_upload_vb:
 295     FREE(r300);
 296     return NULL;
 297 }
 298
 299 boolean r300_check_cs(struct r300_context *r300, unsigned size)
 300 {
 301     return size <= r300->rws->get_cs_free_dwords(r300->rws);
 302 }
 303
 304 void r300_finish(struct r300_context *r300)
 305 {
 306     struct pipe_framebuffer_state *fb;
 307     unsigned i;
 308
 309     /* This is a preliminary implementation of glFinish.
 310      *
 311      * The ideal implementation should use something like EmitIrqLocked and
 312      * WaitIrq, or better, real fences.
 313      */
 314     if (r300->fb_state.state) {
 315         fb = r300->fb_state.state;
 316
 317         for (i = 0; i < fb->nr_cbufs; i++) {
 318             if (fb->cbufs[i]->texture) {
 319                 r300->rws->buffer_wait(r300->rws,
 320                     r300_texture(fb->cbufs[i]->texture)->buffer);
 321                 return;
 322             }
 323         }
 324         if (fb->zsbuf && fb->zsbuf->texture) {
 325             r300->rws->buffer_wait(r300->rws,
 326                 r300_texture(fb->zsbuf->texture)->buffer);
 327         }
 328     }
 329 }