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, 3);
  41         BEGIN_RING(chan, eng2d, 0x0110, 1);
  42         OUT_RING  (chan, 0);
  43
  44         FIRE_RING(chan);
  45 }
  46
  47 static void
  48 nv50_destroy(struct pipe_context *pipe)
  49 {
  50         struct nv50_context *nv50 = nv50_context(pipe);
  51
  52         draw_destroy(nv50->draw);
  53         FREE(nv50);
  54 }
  55
  56
  57 static void
  58 nv50_set_edgeflags(struct pipe_context *pipe, const unsigned *bitfield)
  59 {
  60 }
  61
  62 static unsigned int
  63 nv50_is_texture_referenced( struct pipe_context *pipe,
  64                             struct pipe_texture *texture,
  65                             unsigned face, unsigned level)
  66 {
  67    /**
  68     * FIXME: Optimize.
  69     */
  70
  71    return PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE;
  72 }
  73
  74 static unsigned int
  75 nv50_is_buffer_referenced( struct pipe_context *pipe,
  76                            struct pipe_buffer *buf)
  77 {
  78    /**
  79     * FIXME: Optimize.
  80     */
  81
  82    return PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE;
  83 }
  84
  85 struct pipe_context *
  86 nv50_create(struct pipe_screen *pscreen, unsigned pctx_id)
  87 {
  88         struct pipe_winsys *pipe_winsys = pscreen->winsys;
  89         struct nv50_screen *screen = nv50_screen(pscreen);
  90         struct nv50_context *nv50;
  91
  92         nv50 = CALLOC_STRUCT(nv50_context);
  93         if (!nv50)
  94                 return NULL;
  95         nv50->screen = screen;
  96         nv50->pctx_id = pctx_id;
  97
  98         nv50->pipe.winsys = pipe_winsys;
  99         nv50->pipe.screen = pscreen;
 100
 101         nv50->pipe.destroy = nv50_destroy;
 102
 103         nv50->pipe.set_edgeflags = nv50_set_edgeflags;
 104         nv50->pipe.draw_arrays = nv50_draw_arrays;
 105         nv50->pipe.draw_elements = nv50_draw_elements;
 106         nv50->pipe.clear = nv50_clear;
 107
 108         nv50->pipe.flush = nv50_flush;
 109
 110         nv50->pipe.is_texture_referenced = nv50_is_texture_referenced;
 111         nv50->pipe.is_buffer_referenced = nv50_is_buffer_referenced;
 112
 113         screen->base.channel->user_private = nv50;
 114         screen->base.channel->flush_notify = nv50_state_flush_notify;
 115
 116         nv50_init_surface_functions(nv50);
 117         nv50_init_state_functions(nv50);
 118         nv50_init_query_functions(nv50);
 119
 120         nv50->draw = draw_create();
 121         assert(nv50->draw);
 122         draw_set_rasterize_stage(nv50->draw, nv50_draw_render_stage(nv50));
 123
 124         return &nv50->pipe;
 125 }