src/mesa/pipe/nv40/nv40_query.c

   1 #include "pipe/p_context.h"
   2
   3 #include "nv40_context.h"
   4 #include "nv40_dma.h"
   5
   6 static uint
   7 nv40_query_object_find(struct nv40_context *nv40, struct pipe_query_object *q)
   8 {
   9         int id;
  10
  11         for (id = 0; id < nv40->num_query_objects; id++) {
  12                 if (nv40->query_objects[id] == q)
  13                         return id;
  14         }
  15
  16         return -1;
  17 }
  18
  19 static void
  20 nv40_query_begin(struct pipe_context *pipe, struct pipe_query_object *q)
  21 {
  22         struct nv40_context *nv40 = (struct nv40_context *)pipe;
  23         int id;
  24
  25         assert(q->type == PIPE_QUERY_OCCLUSION_COUNTER);
  26
  27         id = nv40_query_object_find(nv40, NULL);
  28         assert(id >= 0);
  29         nv40->query_objects[id] = q;
  30
  31         nv40->nvws->notifier_reset(nv40->query, id);
  32         q->ready = 0;
  33
  34         BEGIN_RING(curie, NV40TCL_QUERY_RESET, 1);
  35         OUT_RING  (1);
  36         BEGIN_RING(curie, NV40TCL_QUERY_UNK17CC, 1);
  37         OUT_RING  (1);
  38 }
  39
  40 static void
  41 nv40_query_update(struct pipe_context *pipe, struct pipe_query_object *q)
  42 {
  43         struct nv40_context *nv40 = (struct nv40_context *)pipe;
  44         int id;
  45
  46         id = nv40_query_object_find(nv40, q);
  47         assert(id >= 0);
  48
  49         if (nv40->nvws->notifier_status(nv40->query, id) == 0) {
  50                 q->ready = 1;
  51                 q->count = nv40->nvws->notifier_retval(nv40->query, id);
  52                 nv40->query_objects[id] = NULL;
  53         }
  54 }
  55
  56 static void
  57 nv40_query_wait(struct pipe_context *pipe, struct pipe_query_object *q)
  58 {
  59         nv40_query_update(pipe, q);
  60         if (!q->ready) {
  61                 struct nv40_context *nv40 = (struct nv40_context *)pipe;
  62                 int id;
  63
  64                 id = nv40_query_object_find(nv40, q);
  65                 assert(id >= 0);
  66
  67                 nv40->nvws->notifier_wait(nv40->query, id, 0, 0);
  68                 nv40_query_update(pipe, q);
  69                 assert(q->ready);
  70         }
  71 }
  72
  73 static void
  74 nv40_query_end(struct pipe_context *pipe, struct pipe_query_object *q)
  75 {
  76         struct nv40_context *nv40 = (struct nv40_context *)pipe;
  77         int id;
  78
  79         id = nv40_query_object_find(nv40, q);
  80         assert(id >= 0);
  81
  82         BEGIN_RING(curie, NV40TCL_QUERY_GET, 1);
  83         OUT_RING  ((0x01 << NV40TCL_QUERY_GET_UNK24_SHIFT) |
  84                    ((id * 32) << NV40TCL_QUERY_GET_OFFSET_SHIFT));
  85         FIRE_RING ();
  86
  87         /*XXX: Some apps spin waiting for GL_QUERY_RESULT_AVAILABLE_ARB.
  88          *     Core mesa won't ask the driver to update the query object's
  89          *     status in this case, so the app waits forever.. fix this some
  90          *     day.
  91          */
  92 #if 0
  93         nv40_query_update(pipe, q);
  94 #else
  95         nv40_query_wait(pipe, q);
  96 #endif
  97 }
  98
  99 void
 100 nv40_init_query_functions(struct nv40_context *nv40)
 101 {
 102         nv40->pipe.begin_query = nv40_query_begin;
 103         nv40->pipe.end_query = nv40_query_end;
 104         nv40->pipe.wait_query = nv40_query_wait;
 105 }