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_blit.h"
  30 #include "r300_context.h"
  31 #include "r300_emit.h"
  32 #include "r300_flush.h"
  33 #include "r300_query.h"
  34 #include "r300_render.h"
  35 #include "r300_screen.h"
  36 #include "r300_state_invariant.h"
  37 #include "r300_texture.h"
  38 #include "r300_transfer.h"
  39
  40 #include "radeon_winsys.h"
  41
  42 static void r300_destroy_context(struct pipe_context* context)
  43 {
  44     struct r300_context* r300 = r300_context(context);
  45     struct r300_query* query, * temp;
  46
  47     util_blitter_destroy(r300->blitter);
  48     draw_destroy(r300->draw);
  49
  50     /* Free the OQ BO. */
  51     context->screen->buffer_destroy(r300->oqbo);
  52
  53     /* If there are any queries pending or not destroyed, remove them now. */
  54     foreach_s(query, temp, &r300->query_list) {
  55         remove_from_list(query);
  56         FREE(query);
  57     }
  58
  59     u_upload_destroy(r300->upload_vb);
  60     u_upload_destroy(r300->upload_ib);
  61
  62     FREE(r300->blend_color_state.state);
  63     FREE(r300->clip_state.state);
  64     FREE(r300->fb_state.state);
  65     FREE(r300->rs_block_state.state);
  66     FREE(r300->scissor_state.state);
  67     FREE(r300->textures_state.state);
  68     FREE(r300->vap_output_state.state);
  69     FREE(r300->viewport_state.state);
  70     FREE(r300->ztop_state.state);
  71     FREE(r300);
  72 }
  73
  74 static unsigned int
  75 r300_is_texture_referenced(struct pipe_context *pipe,
  76                            struct pipe_texture *texture,
  77                            unsigned face, unsigned level)
  78 {
  79     return 0;
  80 }
  81
  82 static unsigned int
  83 r300_is_buffer_referenced(struct pipe_context *pipe,
  84                           struct pipe_buffer *buf)
  85 {
  86     /* This only checks to see whether actual hardware buffers are
  87      * referenced. Since we use managed BOs and transfers, it's actually not
  88      * possible for pipe_buffers to ever reference the actual hardware, so
  89      * buffers are never referenced.
  90      */
  91
  92     /* XXX: that doesn't make sense given that
  93      * r300_is_texture_referenced is implemented on top of this
  94      * function and hardware can certainly refer to textures
  95      * directly...
  96      */
  97     return 0;
  98 }
  99
 100 static void r300_flush_cb(void *data)
 101 {
 102     struct r300_context* const cs_context_copy = data;
 103
 104     cs_context_copy->context.flush(&cs_context_copy->context, 0, NULL);
 105 }
 106
 107 #define R300_INIT_ATOM(atomname, atomsize) \
 108     r300->atomname.name = #atomname; \
 109     r300->atomname.state = NULL; \
 110     r300->atomname.size = atomsize; \
 111     r300->atomname.emit = r300_emit_##atomname; \
 112     r300->atomname.dirty = FALSE; \
 113     insert_at_tail(&r300->atom_list, &r300->atomname);
 114
 115 static void r300_setup_atoms(struct r300_context* r300)
 116 {
 117     boolean is_r500 = r300_screen(r300->context.screen)->caps->is_r500;
 118     boolean has_tcl = r300_screen(r300->context.screen)->caps->has_tcl;
 119
 120     /* Create the actual atom list.
 121      *
 122      * Each atom is examined and emitted in the order it appears here, which
 123      * can affect performance and conformance if not handled with care.
 124      *
 125      * Some atoms never change size, others change every emit - those have
 126      * the size of 0 here. */
 127     make_empty_list(&r300->atom_list);
 128     R300_INIT_ATOM(invariant_state, 71);
 129     R300_INIT_ATOM(ztop_state, 2);
 130     R300_INIT_ATOM(blend_state, 8);
 131     R300_INIT_ATOM(blend_color_state, is_r500 ? 3 : 2);
 132     R300_INIT_ATOM(clip_state, has_tcl ? 5 + (6 * 4) : 2);
 133     R300_INIT_ATOM(dsa_state, is_r500 ? 8 : 6);
 134     R300_INIT_ATOM(fb_state, 0);
 135     R300_INIT_ATOM(rs_state, 0);
 136     R300_INIT_ATOM(scissor_state, 3);
 137     R300_INIT_ATOM(viewport_state, 9);
 138     R300_INIT_ATOM(rs_block_state, 0);
 139     R300_INIT_ATOM(vertex_stream_state, 0);
 140     R300_INIT_ATOM(vap_output_state, 6);
 141     R300_INIT_ATOM(pvs_flush, 2);
 142     R300_INIT_ATOM(vs_state, 0);
 143     R300_INIT_ATOM(texture_cache_inval, 2);
 144     R300_INIT_ATOM(textures_state, 0);
 145
 146     /* Some non-CSO atoms need explicit space to store the state locally. */
 147     r300->blend_color_state.state = CALLOC_STRUCT(r300_blend_color_state);
 148     r300->clip_state.state = CALLOC_STRUCT(pipe_clip_state);
 149     r300->fb_state.state = CALLOC_STRUCT(pipe_framebuffer_state);
 150     r300->rs_block_state.state = CALLOC_STRUCT(r300_rs_block);
 151     r300->scissor_state.state = CALLOC_STRUCT(pipe_scissor_state);
 152     r300->textures_state.state = CALLOC_STRUCT(r300_textures_state);
 153     r300->vap_output_state.state = CALLOC_STRUCT(r300_vap_output_state);
 154     r300->viewport_state.state = CALLOC_STRUCT(r300_viewport_state);
 155     r300->ztop_state.state = CALLOC_STRUCT(r300_ztop_state);
 156 }
 157
 158 struct pipe_context* r300_create_context(struct pipe_screen* screen,
 159                                          void *priv)
 160 {
 161     struct r300_context* r300 = CALLOC_STRUCT(r300_context);
 162     struct r300_screen* r300screen = r300_screen(screen);
 163     struct r300_winsys_screen *rws = r300screen->rws;
 164
 165     if (!r300)
 166         return NULL;
 167
 168     r300->rws = rws;
 169
 170     r300->context.winsys = (struct pipe_winsys*)rws;
 171     r300->context.screen = screen;
 172     r300->context.priv = priv;
 173
 174     r300->context.destroy = r300_destroy_context;
 175
 176     r300->context.clear = r300_clear;
 177     r300->context.surface_copy = r300_surface_copy;
 178     r300->context.surface_fill = r300_surface_fill;
 179
 180     if (r300screen->caps->has_tcl) {
 181         r300->context.draw_arrays = r300_draw_arrays;
 182         r300->context.draw_elements = r300_draw_elements;
 183         r300->context.draw_range_elements = r300_draw_range_elements;
 184     } else {
 185         r300->context.draw_arrays = r300_swtcl_draw_arrays;
 186         r300->context.draw_elements = r300_draw_elements;
 187         r300->context.draw_range_elements = r300_swtcl_draw_range_elements;
 188
 189         /* Create a Draw. This is used for SW TCL. */
 190         r300->draw = draw_create();
 191         /* Enable our renderer. */
 192         draw_set_rasterize_stage(r300->draw, r300_draw_stage(r300));
 193         /* Enable Draw's clipping. */
 194         draw_set_driver_clipping(r300->draw, FALSE);
 195         /* Force Draw to never do viewport transform, since we can do
 196          * transform in hardware, always. */
 197         draw_set_viewport_state(r300->draw, &r300_viewport_identity);
 198     }
 199
 200     r300->context.is_texture_referenced = r300_is_texture_referenced;
 201     r300->context.is_buffer_referenced = r300_is_buffer_referenced;
 202
 203     r300_setup_atoms(r300);
 204
 205     /* Open up the OQ BO. */
 206     r300->oqbo = screen->buffer_create(screen, 4096,
 207             PIPE_BUFFER_USAGE_VERTEX, 4096);
 208     make_empty_list(&r300->query_list);
 209
 210     r300_init_flush_functions(r300);
 211
 212     r300_init_query_functions(r300);
 213
 214     r300_init_transfer_functions(r300);
 215
 216     r300_init_state_functions(r300);
 217
 218     r300->invariant_state.dirty = TRUE;
 219
 220     rws->set_flush_cb(r300->rws, r300_flush_cb, r300);
 221     r300->dirty_hw++;
 222
 223     r300->blitter = util_blitter_create(&r300->context);
 224
 225     r300->upload_ib = u_upload_create(screen,
 226                                       32 * 1024, 16,
 227                                       PIPE_BUFFER_USAGE_INDEX);
 228
 229     if (r300->upload_ib == NULL)
 230         goto no_upload_ib;
 231
 232     r300->upload_vb = u_upload_create(screen,
 233                                       128 * 1024, 16,
 234                                       PIPE_BUFFER_USAGE_VERTEX);
 235     if (r300->upload_vb == NULL)
 236         goto no_upload_vb;
 237
 238     return &r300->context;
 239
 240  no_upload_ib:
 241     u_upload_destroy(r300->upload_ib);
 242  no_upload_vb:
 243     FREE(r300);
 244     return NULL;
 245 }