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
  39 #include "radeon_winsys.h"
  40
  41 static void r300_destroy_context(struct pipe_context* context)
  42 {
  43     struct r300_context* r300 = r300_context(context);
  44     struct r300_query* query, * temp;
  45
  46     util_blitter_destroy(r300->blitter);
  47     draw_destroy(r300->draw);
  48
  49     /* Free the OQ BO. */
  50     context->screen->buffer_destroy(r300->oqbo);
  51
  52     /* If there are any queries pending or not destroyed, remove them now. */
  53     foreach_s(query, temp, &r300->query_list) {
  54         remove_from_list(query);
  55         FREE(query);
  56     }
  57
  58     u_upload_destroy(r300->upload_vb);
  59     u_upload_destroy(r300->upload_ib);
  60
  61     FREE(r300->blend_color_state.state);
  62     FREE(r300->clip_state.state);
  63     FREE(r300->fb_state.state);
  64     FREE(r300->rs_block_state.state);
  65     FREE(r300->scissor_state.state);
  66     FREE(r300->vertex_format_state.state);
  67     FREE(r300->viewport_state.state);
  68     FREE(r300->ztop_state.state);
  69     FREE(r300);
  70 }
  71
  72 static unsigned int
  73 r300_is_texture_referenced(struct pipe_context *pipe,
  74                            struct pipe_texture *texture,
  75                            unsigned face, unsigned level)
  76 {
  77     return 0;
  78 }
  79
  80 static unsigned int
  81 r300_is_buffer_referenced(struct pipe_context *pipe,
  82                           struct pipe_buffer *buf)
  83 {
  84     /* This only checks to see whether actual hardware buffers are
  85      * referenced. Since we use managed BOs and transfers, it's actually not
  86      * possible for pipe_buffers to ever reference the actual hardware, so
  87      * buffers are never referenced. */
  88     return 0;
  89 }
  90
  91 static void r300_flush_cb(void *data)
  92 {
  93     struct r300_context* const cs_context_copy = data;
  94
  95     cs_context_copy->context.flush(&cs_context_copy->context, 0, NULL);
  96 }
  97
  98 #define R300_INIT_ATOM(atomname, atomsize) \
  99     r300->atomname##_state.name = #atomname; \
 100     r300->atomname##_state.state = NULL; \
 101     r300->atomname##_state.size = atomsize; \
 102     r300->atomname##_state.emit = r300_emit_##atomname##_state; \
 103     r300->atomname##_state.dirty = FALSE; \
 104     insert_at_tail(&r300->atom_list, &r300->atomname##_state);
 105
 106 static void r300_setup_atoms(struct r300_context* r300)
 107 {
 108     /* Create the actual atom list.
 109      *
 110      * Each atom is examined and emitted in the order it appears here, which
 111      * can affect performance and conformance if not handled with care.
 112      *
 113      * Some atoms never change size, others change every emit. This is just
 114      * an upper bound on each atom, to keep the emission machinery from
 115      * underallocating space. */
 116     make_empty_list(&r300->atom_list);
 117     R300_INIT_ATOM(invariant, 71);
 118     R300_INIT_ATOM(ztop, 2);
 119     R300_INIT_ATOM(blend, 8);
 120     R300_INIT_ATOM(blend_color, 3);
 121     R300_INIT_ATOM(clip, 29);
 122     R300_INIT_ATOM(dsa, 8);
 123     R300_INIT_ATOM(fb, 56);
 124     R300_INIT_ATOM(rs, 25);
 125     R300_INIT_ATOM(scissor, 3);
 126     R300_INIT_ATOM(viewport, 9);
 127     R300_INIT_ATOM(rs_block, 21);
 128     R300_INIT_ATOM(vertex_format, 26);
 129
 130     /* Some non-CSO atoms need explicit space to store the state locally. */
 131     r300->fb_state.state = CALLOC_STRUCT(pipe_framebuffer_state);
 132 }
 133
 134 struct pipe_context* r300_create_context(struct pipe_screen* screen,
 135                                          void *priv)
 136 {
 137     struct r300_context* r300 = CALLOC_STRUCT(r300_context);
 138     struct r300_screen* r300screen = r300_screen(screen);
 139     struct r300_winsys_screen *rws = r300screen->rws;
 140
 141     if (!r300)
 142         return NULL;
 143
 144     r300->rws = rws;
 145
 146     r300->context.winsys = (struct pipe_winsys*)rws;
 147     r300->context.screen = screen;
 148     r300->context.priv = priv;
 149
 150     r300->context.destroy = r300_destroy_context;
 151
 152     r300->context.clear = r300_clear;
 153     r300->context.surface_copy = r300_surface_copy;
 154     r300->context.surface_fill = r300_surface_fill;
 155
 156     if (r300screen->caps->has_tcl) {
 157         r300->context.draw_arrays = r300_draw_arrays;
 158         r300->context.draw_elements = r300_draw_elements;
 159         r300->context.draw_range_elements = r300_draw_range_elements;
 160     } else {
 161         r300->context.draw_arrays = r300_swtcl_draw_arrays;
 162         r300->context.draw_elements = r300_draw_elements;
 163         r300->context.draw_range_elements = r300_swtcl_draw_range_elements;
 164
 165         /* Create a Draw. This is used for SW TCL. */
 166         r300->draw = draw_create();
 167         /* Enable our renderer. */
 168         draw_set_rasterize_stage(r300->draw, r300_draw_stage(r300));
 169         /* Enable Draw's clipping. */
 170         draw_set_driver_clipping(r300->draw, FALSE);
 171         /* Force Draw to never do viewport transform, since we can do
 172          * transform in hardware, always. */
 173         draw_set_viewport_state(r300->draw, &r300_viewport_identity);
 174     }
 175
 176     r300->context.is_texture_referenced = r300_is_texture_referenced;
 177     r300->context.is_buffer_referenced = r300_is_buffer_referenced;
 178
 179     r300_setup_atoms(r300);
 180
 181     r300->blend_color_state.state = CALLOC_STRUCT(r300_blend_color_state);
 182     r300->clip_state.state = CALLOC_STRUCT(pipe_clip_state);
 183     r300->rs_block_state.state = CALLOC_STRUCT(r300_rs_block);
 184     r300->scissor_state.state = CALLOC_STRUCT(pipe_scissor_state);
 185     r300->vertex_format_state.state = CALLOC_STRUCT(r300_vertex_info);
 186     r300->viewport_state.state = CALLOC_STRUCT(r300_viewport_state);
 187     r300->ztop_state.state = CALLOC_STRUCT(r300_ztop_state);
 188
 189     /* Open up the OQ BO. */
 190     r300->oqbo = screen->buffer_create(screen, 4096,
 191             PIPE_BUFFER_USAGE_VERTEX, 4096);
 192     make_empty_list(&r300->query_list);
 193
 194     r300_init_flush_functions(r300);
 195
 196     r300_init_query_functions(r300);
 197
 198     /* r300_init_surface_functions(r300); */
 199
 200     r300_init_state_functions(r300);
 201
 202     r300->invariant_state.dirty = TRUE;
 203
 204     rws->set_flush_cb(r300->rws, r300_flush_cb, r300);
 205     r300->dirty_state = R300_NEW_KITCHEN_SINK;
 206     r300->dirty_hw++;
 207
 208     r300->blitter = util_blitter_create(&r300->context);
 209
 210     r300->upload_ib = u_upload_create(screen,
 211                                       32 * 1024, 16,
 212                                       PIPE_BUFFER_USAGE_INDEX);
 213
 214     if (r300->upload_ib == NULL)
 215         goto no_upload_ib;
 216
 217     r300->upload_vb = u_upload_create(screen,
 218                                       128 * 1024, 16,
 219                                       PIPE_BUFFER_USAGE_VERTEX);
 220     if (r300->upload_vb == NULL)
 221         goto no_upload_vb;
 222
 223     return &r300->context;
 224
 225     //    u_upload_destroy(r300->upload_vb);
 226  no_upload_ib:
 227     u_upload_destroy(r300->upload_ib);
 228  no_upload_vb:
 229     FREE(r300);
 230     return NULL;
 231 }