src/gallium/drivers/nv30/nv30_context.c

   1 #include "draw/draw_context.h"
   2 #include "pipe/p_defines.h"
   3 #include "pipe/internal/p_winsys_screen.h"
   4
   5 #include "nv30_context.h"
   6 #include "nv30_screen.h"
   7
   8 static void
   9 nv30_flush(struct pipe_context *pipe, unsigned flags,
  10            struct pipe_fence_handle **fence)
  11 {
  12         struct nv30_context *nv30 = nv30_context(pipe);
  13
  14         if (flags & PIPE_FLUSH_TEXTURE_CACHE) {
  15                 BEGIN_RING(rankine, 0x1fd8, 1);
  16                 OUT_RING  (2);
  17                 BEGIN_RING(rankine, 0x1fd8, 1);
  18                 OUT_RING  (1);
  19         }
  20
  21         FIRE_RING(fence);
  22 }
  23
  24 static void
  25 nv30_destroy(struct pipe_context *pipe)
  26 {
  27         struct nv30_context *nv30 = nv30_context(pipe);
  28
  29         if (nv30->draw)
  30                 draw_destroy(nv30->draw);
  31         FREE(nv30);
  32 }
  33
  34 static unsigned int
  35 nv30_is_texture_referenced( struct pipe_context *pipe,
  36                             struct pipe_texture *texture,
  37                             unsigned face, unsigned level)
  38 {
  39    /**
  40     * FIXME: Optimize.
  41     */
  42
  43    return PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE;
  44 }
  45
  46 static unsigned int
  47 nv30_is_buffer_referenced( struct pipe_context *pipe,
  48                            struct pipe_buffer *buf)
  49 {
  50    /**
  51     * FIXME: Optimize.
  52     */
  53
  54    return PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE;
  55 }
  56
  57 struct pipe_context *
  58 nv30_create(struct pipe_screen *pscreen, unsigned pctx_id)
  59 {
  60         struct nv30_screen *screen = nv30_screen(pscreen);
  61         struct pipe_winsys *ws = pscreen->winsys;
  62         struct nv30_context *nv30;
  63         struct nouveau_winsys *nvws = screen->nvws;
  64
  65         nv30 = CALLOC(1, sizeof(struct nv30_context));
  66         if (!nv30)
  67                 return NULL;
  68         nv30->screen = screen;
  69         nv30->pctx_id = pctx_id;
  70
  71         nv30->nvws = nvws;
  72
  73         nv30->pipe.winsys = ws;
  74         nv30->pipe.screen = pscreen;
  75         nv30->pipe.destroy = nv30_destroy;
  76         nv30->pipe.draw_arrays = nv30_draw_arrays;
  77         nv30->pipe.draw_elements = nv30_draw_elements;
  78         nv30->pipe.clear = nv30_clear;
  79         nv30->pipe.flush = nv30_flush;
  80
  81         nv30->pipe.is_texture_referenced = nv30_is_texture_referenced;
  82         nv30->pipe.is_buffer_referenced = nv30_is_buffer_referenced;
  83
  84         nv30_init_query_functions(nv30);
  85         nv30_init_surface_functions(nv30);
  86         nv30_init_state_functions(nv30);
  87
  88         /* Create, configure, and install fallback swtnl path */
  89         nv30->draw = draw_create();
  90         draw_wide_point_threshold(nv30->draw, 9999999.0);
  91         draw_wide_line_threshold(nv30->draw, 9999999.0);
  92         draw_enable_line_stipple(nv30->draw, FALSE);
  93         draw_enable_point_sprites(nv30->draw, FALSE);
  94         draw_set_rasterize_stage(nv30->draw, nv30_draw_render_stage(nv30));
  95
  96         return &nv30->pipe;
  97 }
  98