src/gallium/drivers/nv50/nv50_context.c

   1 /*
   2  * Copyright 2008 Ben Skeggs
   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  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  18  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
  19  * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  20  * SOFTWARE.
  21  */
  22
  23 #include "draw/draw_context.h"
  24 #include "pipe/p_defines.h"
  25
  26 #include "nv50_context.h"
  27 #include "nv50_screen.h"
  28 #include "nv50_resource.h"
  29
  30 static void
  31 nv50_flush(struct pipe_context *pipe, unsigned flags,
  32            struct pipe_fence_handle **fence)
  33 {
  34         struct nv50_context *nv50 = nv50_context(pipe);
  35         struct nouveau_channel *chan = nv50->screen->base.channel;
  36
  37         if (flags & PIPE_FLUSH_TEXTURE_CACHE) {
  38                 BEGIN_RING(chan, nv50->screen->tesla, 0x1338, 1);
  39                 OUT_RING  (chan, 0x20);
  40         }
  41
  42         if (flags & PIPE_FLUSH_FRAME)
  43                 FIRE_RING(chan);
  44 }
  45
  46 static void
  47 nv50_destroy(struct pipe_context *pipe)
  48 {
  49         struct nv50_context *nv50 = nv50_context(pipe);
  50         int i;
  51
  52         for (i = 0; i < nv50->vtxbuf_nr; i++) {
  53            pipe_resource_reference(&nv50->vtxbuf[i].buffer, NULL);
  54         }
  55
  56         for (i = 0; i < 64; i++) {
  57                 if (!nv50->state.hw[i])
  58                         continue;
  59                 so_ref(NULL, &nv50->state.hw[i]);
  60         }
  61
  62         draw_destroy(nv50->draw);
  63
  64         if (nv50->screen->cur_ctx == nv50)
  65                 nv50->screen->cur_ctx = NULL;
  66
  67         FREE(nv50);
  68 }
  69
  70
  71 struct pipe_context *
  72 nv50_create(struct pipe_screen *pscreen, void *priv)
  73 {
  74         struct pipe_winsys *pipe_winsys = pscreen->winsys;
  75         struct nv50_screen *screen = nv50_screen(pscreen);
  76         struct nv50_context *nv50;
  77
  78         nv50 = CALLOC_STRUCT(nv50_context);
  79         if (!nv50)
  80                 return NULL;
  81         nv50->screen = screen;
  82
  83         nv50->pipe.winsys = pipe_winsys;
  84         nv50->pipe.screen = pscreen;
  85         nv50->pipe.priv = priv;
  86
  87         nv50->pipe.destroy = nv50_destroy;
  88
  89         nv50->pipe.draw_vbo = nv50_draw_vbo;
  90         nv50->pipe.clear = nv50_clear;
  91
  92         nv50->pipe.flush = nv50_flush;
  93
  94         screen->base.channel->user_private = nv50;
  95
  96         nv50_init_surface_functions(nv50);
  97         nv50_init_state_functions(nv50);
  98         nv50_init_query_functions(nv50);
  99         nv50_init_resource_functions(&nv50->pipe);
 100
 101         nv50->draw = draw_create(&nv50->pipe);
 102         assert(nv50->draw);
 103         draw_set_rasterize_stage(nv50->draw, nv50_draw_render_stage(nv50));
 104
 105         return &nv50->pipe;
 106 }