src/gallium/drivers/nv40/nv40_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 "nv40_context.h"
   6 #include "nv40_screen.h"
   7
   8 static void
   9 nv40_flush(struct pipe_context *pipe, unsigned flags,
  10            struct pipe_fence_handle **fence)
  11 {
  12         struct nv40_context *nv40 = nv40_context(pipe);
  13
  14         if (flags & PIPE_FLUSH_TEXTURE_CACHE) {
  15                 BEGIN_RING(curie, 0x1fd8, 1);
  16                 OUT_RING  (2);
  17                 BEGIN_RING(curie, 0x1fd8, 1);
  18                 OUT_RING  (1);
  19         }
  20
  21         FIRE_RING(fence);
  22 }
  23
  24 static void
  25 nv40_destroy(struct pipe_context *pipe)
  26 {
  27         struct nv40_context *nv40 = nv40_context(pipe);
  28
  29         if (nv40->draw)
  30                 draw_destroy(nv40->draw);
  31         FREE(nv40);
  32 }
  33
  34 static unsigned int
  35 nv40_is_texture_referenced( struct pipe_context *pipe,
  36                             struct pipe_texture *texture,
  37                             unsigned face, unsigned level)
  38 {
  39    /**
  40     * FIXME: Return the correct result. We can't always return referenced
  41     *        since it causes a double flush within the vbo module.
  42     */
  43 #if 0
  44    return PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE;
  45 #else
  46    return 0;
  47 #endif
  48 }
  49
  50 static unsigned int
  51 nv40_is_buffer_referenced( struct pipe_context *pipe,
  52                            struct pipe_buffer *buf)
  53 {
  54    /**
  55     * FIXME: Return the correct result. We can't always return referenced
  56     *        since it causes a double flush within the vbo module.
  57     */
  58 #if 0
  59    return PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE;
  60 #else
  61    return 0;
  62 #endif
  63 }
  64
  65 struct pipe_context *
  66 nv40_create(struct pipe_screen *pscreen, unsigned pctx_id)
  67 {
  68         struct nv40_screen *screen = nv40_screen(pscreen);
  69         struct pipe_winsys *ws = pscreen->winsys;
  70         struct nv40_context *nv40;
  71         struct nouveau_winsys *nvws = screen->nvws;
  72
  73         nv40 = CALLOC(1, sizeof(struct nv40_context));
  74         if (!nv40)
  75                 return NULL;
  76         nv40->screen = screen;
  77         nv40->pctx_id = pctx_id;
  78
  79         nv40->nvws = nvws;
  80
  81         nv40->pipe.winsys = ws;
  82         nv40->pipe.screen = pscreen;
  83         nv40->pipe.destroy = nv40_destroy;
  84         nv40->pipe.draw_arrays = nv40_draw_arrays;
  85         nv40->pipe.draw_elements = nv40_draw_elements;
  86         nv40->pipe.clear = nv40_clear;
  87         nv40->pipe.flush = nv40_flush;
  88
  89         nv40->pipe.is_texture_referenced = nv40_is_texture_referenced;
  90         nv40->pipe.is_buffer_referenced = nv40_is_buffer_referenced;
  91
  92         nv40_init_query_functions(nv40);
  93         nv40_init_surface_functions(nv40);
  94         nv40_init_state_functions(nv40);
  95
  96         /* Create, configure, and install fallback swtnl path */
  97         nv40->draw = draw_create();
  98         draw_wide_point_threshold(nv40->draw, 9999999.0);
  99         draw_wide_line_threshold(nv40->draw, 9999999.0);
 100         draw_enable_line_stipple(nv40->draw, FALSE);
 101         draw_enable_point_sprites(nv40->draw, FALSE);
 102         draw_set_rasterize_stage(nv40->draw, nv40_draw_render_stage(nv40));
 103
 104         return &nv40->pipe;
 105 }