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 #include "pipe/internal/p_winsys_screen.h"
  26
  27 #include "nv50_context.h"
  28 #include "nv50_screen.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         struct nouveau_grobj *eng2d = nv50->screen->eng2d;
  37
  38         /* We need this in the ddx for reliable composite, not sure what we're
  39          * actually flushing. We generate all our own flushes with flags = 0. */
  40         WAIT_RING(chan, 2);
  41         BEGIN_RING(chan, eng2d, 0x0110, 1);
  42         OUT_RING  (chan, 0);
  43
  44         if (flags & PIPE_FLUSH_FRAME)
  45                 FIRE_RING(chan);
  46 }
  47
  48 static void
  49 nv50_destroy(struct pipe_context *pipe)
  50 {
  51         struct nv50_context *nv50 = nv50_context(pipe);
  52
  53         draw_destroy(nv50->draw);
  54         FREE(nv50);
  55 }
  56
  57
  58 static void
  59 nv50_set_edgeflags(struct pipe_context *pipe, const unsigned *bitfield)
  60 {
  61 }
  62
  63 static unsigned int
  64 nv50_is_texture_referenced( struct pipe_context *pipe,
  65                             struct pipe_texture *texture,
  66                             unsigned face, unsigned level)
  67 {
  68    /**
  69     * FIXME: Optimize.
  70     */
  71
  72    return PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE;
  73 }
  74
  75 static unsigned int
  76 nv50_is_buffer_referenced( struct pipe_context *pipe,
  77                            struct pipe_buffer *buf)
  78 {
  79    /**
  80     * FIXME: Optimize.
  81     */
  82
  83    return PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE;
  84 }
  85
  86 struct pipe_context *
  87 nv50_create(struct pipe_screen *pscreen, unsigned pctx_id)
  88 {
  89         struct pipe_winsys *pipe_winsys = pscreen->winsys;
  90         struct nv50_screen *screen = nv50_screen(pscreen);
  91         struct nv50_context *nv50;
  92
  93         nv50 = CALLOC_STRUCT(nv50_context);
  94         if (!nv50)
  95                 return NULL;
  96         nv50->screen = screen;
  97         nv50->pctx_id = pctx_id;
  98
  99         nv50->pipe.winsys = pipe_winsys;
 100         nv50->pipe.screen = pscreen;
 101
 102         nv50->pipe.destroy = nv50_destroy;
 103
 104         nv50->pipe.set_edgeflags = nv50_set_edgeflags;
 105         nv50->pipe.draw_arrays = nv50_draw_arrays;
 106         nv50->pipe.draw_elements = nv50_draw_elements;
 107         nv50->pipe.clear = nv50_clear;
 108
 109         nv50->pipe.flush = nv50_flush;
 110
 111         nv50->pipe.is_texture_referenced = nv50_is_texture_referenced;
 112         nv50->pipe.is_buffer_referenced = nv50_is_buffer_referenced;
 113
 114         screen->base.channel->user_private = nv50;
 115         screen->base.channel->flush_notify = nv50_state_flush_notify;
 116
 117         nv50_init_surface_functions(nv50);
 118         nv50_init_state_functions(nv50);
 119         nv50_init_query_functions(nv50);
 120
 121         nv50->draw = draw_create();
 122         assert(nv50->draw);
 123         draw_set_rasterize_stage(nv50->draw, nv50_draw_render_stage(nv50));
 124
 125         return &nv50->pipe;
 126 }