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_simple_list.h"
  27 #include "util/u_upload_mgr.h"
  28
  29 #include "r300_context.h"
  30 #include "r300_emit.h"
  31 #include "r300_screen.h"
  32 #include "r300_screen_buffer.h"
  33 #include "r300_state_invariant.h"
  34 #include "r300_winsys.h"
  35
  36 #include <inttypes.h>
  37
  38 static void r300_destroy_context(struct pipe_context* context)
  39 {
  40     struct r300_context* r300 = r300_context(context);
  41     struct r300_query* query, * temp;
  42     struct r300_atom *atom;
  43
  44     util_blitter_destroy(r300->blitter);
  45     draw_destroy(r300->draw);
  46
  47     /* Print stats, if enabled. */
  48     if (SCREEN_DBG_ON(r300->screen, DBG_STATS)) {
  49         fprintf(stderr, "r300: Stats for context %p:\n", r300);
  50         fprintf(stderr, "    : Flushes: %" PRIu64 "\n", r300->flush_counter);
  51         foreach(atom, &r300->atom_list) {
  52             fprintf(stderr, "    : %s: %" PRIu64 " emits\n",
  53                 atom->name, atom->counter);
  54         }
  55     }
  56
  57     /* Free the OQ BO. */
  58     context->screen->resource_destroy(context->screen, r300->oqbo);
  59
  60     /* If there are any queries pending or not destroyed, remove them now. */
  61     foreach_s(query, temp, &r300->query_list) {
  62         remove_from_list(query);
  63         FREE(query);
  64     }
  65
  66     u_upload_destroy(r300->upload_vb);
  67     u_upload_destroy(r300->upload_ib);
  68
  69     FREE(r300->blend_color_state.state);
  70     FREE(r300->clip_state.state);
  71     FREE(r300->fb_state.state);
  72     FREE(r300->rs_block_state.state);
  73     FREE(r300->scissor_state.state);
  74     FREE(r300->textures_state.state);
  75     FREE(r300->viewport_state.state);
  76     FREE(r300->ztop_state.state);
  77     FREE(r300->fs_constants.state);
  78     FREE(r300->vs_constants.state);
  79     if (!r300->screen->caps.has_tcl) {
  80         FREE(r300->vertex_stream_state.state);
  81     }
  82     FREE(r300);
  83 }
  84
  85 static void r300_flush_cb(void *data)
  86 {
  87     struct r300_context* const cs_context_copy = data;
  88
  89     cs_context_copy->context.flush(&cs_context_copy->context, 0, NULL);
  90 }
  91
  92 #define R300_INIT_ATOM(atomname, atomsize) \
  93     r300->atomname.name = #atomname; \
  94     r300->atomname.state = NULL; \
  95     r300->atomname.size = atomsize; \
  96     r300->atomname.emit = r300_emit_##atomname; \
  97     r300->atomname.dirty = FALSE; \
  98     insert_at_tail(&r300->atom_list, &r300->atomname);
  99
 100 static void r300_setup_atoms(struct r300_context* r300)
 101 {
 102     boolean is_r500 = r300->screen->caps.is_r500;
 103     boolean has_tcl = r300->screen->caps.has_tcl;
 104
 105     /* Create the actual atom list.
 106      *
 107      * Each atom is examined and emitted in the order it appears here, which
 108      * can affect performance and conformance if not handled with care.
 109      *
 110      * Some atoms never change size, others change every emit - those have
 111      * the size of 0 here. */
 112     make_empty_list(&r300->atom_list);
 113     R300_INIT_ATOM(invariant_state, 71);
 114     R300_INIT_ATOM(query_start, 4);
 115     R300_INIT_ATOM(ztop_state, 2);
 116     R300_INIT_ATOM(blend_state, 8);
 117     R300_INIT_ATOM(blend_color_state, is_r500 ? 3 : 2);
 118     R300_INIT_ATOM(clip_state, has_tcl ? 5 + (6 * 4) : 2);
 119     R300_INIT_ATOM(dsa_state, is_r500 ? 8 : 6);
 120     R300_INIT_ATOM(fb_state, 0);
 121     R300_INIT_ATOM(rs_state, 0);
 122     R300_INIT_ATOM(scissor_state, 3);
 123     R300_INIT_ATOM(viewport_state, 9);
 124     R300_INIT_ATOM(rs_block_state, 0);
 125     R300_INIT_ATOM(vertex_stream_state, 0);
 126     R300_INIT_ATOM(pvs_flush, 2);
 127     R300_INIT_ATOM(vs_state, 0);
 128     R300_INIT_ATOM(vs_constants, 0);
 129     R300_INIT_ATOM(texture_cache_inval, 2);
 130     R300_INIT_ATOM(textures_state, 0);
 131     R300_INIT_ATOM(fs, 0);
 132     R300_INIT_ATOM(fs_rc_constant_state, 0);
 133     R300_INIT_ATOM(fs_constants, 0);
 134
 135     /* Replace emission functions for r500. */
 136     if (r300->screen->caps.is_r500) {
 137         r300->fs.emit = r500_emit_fs;
 138         r300->fs_rc_constant_state.emit = r500_emit_fs_rc_constant_state;
 139         r300->fs_constants.emit = r500_emit_fs_constants;
 140     }
 141
 142     /* Some non-CSO atoms need explicit space to store the state locally. */
 143     r300->blend_color_state.state = CALLOC_STRUCT(r300_blend_color_state);
 144     r300->clip_state.state = CALLOC_STRUCT(pipe_clip_state);
 145     r300->fb_state.state = CALLOC_STRUCT(pipe_framebuffer_state);
 146     r300->rs_block_state.state = CALLOC_STRUCT(r300_rs_block);
 147     r300->scissor_state.state = CALLOC_STRUCT(pipe_scissor_state);
 148     r300->textures_state.state = CALLOC_STRUCT(r300_textures_state);
 149     r300->viewport_state.state = CALLOC_STRUCT(r300_viewport_state);
 150     r300->ztop_state.state = CALLOC_STRUCT(r300_ztop_state);
 151     r300->fs_constants.state = CALLOC_STRUCT(r300_constant_buffer);
 152     r300->vs_constants.state = CALLOC_STRUCT(r300_constant_buffer);
 153     if (!r300->screen->caps.has_tcl) {
 154         r300->vertex_stream_state.state = CALLOC_STRUCT(r300_vertex_stream_state);
 155     }
 156
 157     /* Some non-CSO atoms don't use the state pointer. */
 158     r300->invariant_state.allow_null_state = TRUE;
 159     r300->fs_rc_constant_state.allow_null_state = TRUE;
 160     r300->pvs_flush.allow_null_state = TRUE;
 161     r300->query_start.allow_null_state = TRUE;
 162     r300->texture_cache_inval.allow_null_state = TRUE;
 163 }
 164
 165 struct pipe_context* r300_create_context(struct pipe_screen* screen,
 166                                          void *priv)
 167 {
 168     struct r300_context* r300 = CALLOC_STRUCT(r300_context);
 169     struct r300_screen* r300screen = r300_screen(screen);
 170     struct r300_winsys_screen *rws = r300screen->rws;
 171
 172     if (!r300)
 173         return NULL;
 174
 175     r300->rws = rws;
 176     r300->screen = r300screen;
 177
 178     r300->context.winsys = (struct pipe_winsys*)rws;
 179     r300->context.screen = screen;
 180     r300->context.priv = priv;
 181
 182     r300->context.destroy = r300_destroy_context;
 183
 184     if (!r300screen->caps.has_tcl) {
 185         /* Create a Draw. This is used for SW TCL. */
 186         r300->draw = draw_create(&r300->context);
 187         /* Enable our renderer. */
 188         draw_set_rasterize_stage(r300->draw, r300_draw_stage(r300));
 189         /* Enable Draw's clipping. */
 190         draw_set_driver_clipping(r300->draw, FALSE);
 191         /* Disable converting points/lines to triangles. */
 192         draw_wide_line_threshold(r300->draw, 10000000.f);
 193         draw_wide_point_threshold(r300->draw, 10000000.f);
 194     }
 195
 196     r300_setup_atoms(r300);
 197
 198     /* Open up the OQ BO. */
 199     r300->oqbo = pipe_buffer_create(screen,
 200                                     R300_BIND_OQBO, 4096);
 201     make_empty_list(&r300->query_list);
 202
 203     r300_init_blit_functions(r300);
 204     r300_init_flush_functions(r300);
 205     r300_init_query_functions(r300);
 206     r300_init_render_functions(r300);
 207     r300_init_state_functions(r300);
 208     r300_init_resource_functions(r300);
 209
 210     r300->invariant_state.dirty = TRUE;
 211
 212     rws->set_flush_cb(r300->rws, r300_flush_cb, r300);
 213     r300->dirty_hw++;
 214
 215     r300->blitter = util_blitter_create(&r300->context);
 216
 217     r300->upload_ib = u_upload_create(&r300->context,
 218                                       32 * 1024, 16,
 219                                       PIPE_BIND_INDEX_BUFFER);
 220
 221     if (r300->upload_ib == NULL)
 222         goto no_upload_ib;
 223
 224     r300->upload_vb = u_upload_create(&r300->context,
 225                                       128 * 1024, 16,
 226                                       PIPE_BIND_VERTEX_BUFFER);
 227     if (r300->upload_vb == NULL)
 228         goto no_upload_vb;
 229
 230     return &r300->context;
 231
 232  no_upload_ib:
 233     u_upload_destroy(r300->upload_ib);
 234  no_upload_vb:
 235     FREE(r300);
 236     return NULL;
 237 }
 238
 239 void r300_finish(struct r300_context *r300)
 240 {
 241     struct pipe_framebuffer_state *fb;
 242     unsigned i;
 243
 244     /* This is a preliminary implementation of glFinish.
 245      *
 246      * The ideal implementation should use something like EmitIrqLocked and
 247      * WaitIrq, or better, real fences.
 248      */
 249     if (r300->fb_state.state) {
 250         fb = r300->fb_state.state;
 251
 252         for (i = 0; i < fb->nr_cbufs; i++) {
 253             if (fb->cbufs[i]->texture) {
 254                 r300->rws->buffer_wait(r300->rws,
 255                     r300_texture(fb->cbufs[i]->texture)->buffer);
 256                 return;
 257             }
 258         }
 259         if (fb->zsbuf && fb->zsbuf->texture) {
 260             r300->rws->buffer_wait(r300->rws,
 261                 r300_texture(fb->zsbuf->texture)->buffer);
 262         }
 263     }
 264 }