src/gallium/drivers/nv30/nv30_state_emit.c

   1 #include "nv30_context.h"
   2 #include "nv30_state.h"
   3
   4 static struct nv30_state_entry *render_states[] = {
   5         &nv30_state_framebuffer,
   6         &nv30_state_rasterizer,
   7         &nv30_state_scissor,
   8         &nv30_state_stipple,
   9         &nv30_state_fragprog,
  10         &nv30_state_fragtex,
  11         &nv30_state_vertprog,
  12         &nv30_state_blend,
  13         &nv30_state_blend_colour,
  14         &nv30_state_zsa,
  15         &nv30_state_sr,
  16         &nv30_state_viewport,
  17         &nv30_state_vbo,
  18         NULL
  19 };
  20
  21 static void
  22 nv30_state_do_validate(struct nv30_context *nv30,
  23                        struct nv30_state_entry **states)
  24 {
  25         while (*states) {
  26                 struct nv30_state_entry *e = *states;
  27
  28                 if (nv30->dirty & e->dirty.pipe) {
  29                         if (e->validate(nv30)) {
  30                                 nv30->state.dirty |= (1ULL << e->dirty.hw);
  31                         }
  32                 }
  33
  34                 states++;
  35         }
  36         nv30->dirty = 0;
  37 }
  38
  39 void
  40 nv30_state_emit(struct nv30_context *nv30)
  41 {
  42         struct nouveau_channel *chan = nv30->screen->base.channel;
  43         struct nv30_state *state = &nv30->state;
  44         struct nv30_screen *screen = nv30->screen;
  45         unsigned i;
  46         uint64_t states;
  47
  48         /* XXX: racy!
  49          */
  50         if (nv30 != screen->cur_ctx) {
  51                 for (i = 0; i < NV30_STATE_MAX; i++) {
  52                         if (state->hw[i] && screen->state[i] != state->hw[i])
  53                                 state->dirty |= (1ULL << i);
  54                 }
  55
  56                 screen->cur_ctx = nv30;
  57         }
  58
  59         for (i = 0, states = state->dirty; states; i++) {
  60                 if (!(states & (1ULL << i)))
  61                         continue;
  62                 so_ref (state->hw[i], &nv30->screen->state[i]);
  63                 if (state->hw[i])
  64                         so_emit(chan, nv30->screen->state[i]);
  65                 states &= ~(1ULL << i);
  66         }
  67
  68         state->dirty = 0;
  69 }
  70
  71 void
  72 nv30_state_flush_notify(struct nouveau_channel *chan)
  73 {
  74         struct nv30_context *nv30 = chan->user_private;
  75         struct nv30_state *state = &nv30->state;
  76         unsigned i, samplers;
  77
  78         so_emit_reloc_markers(chan, state->hw[NV30_STATE_FB]);
  79         for (i = 0, samplers = state->fp_samplers; i < 16 && samplers; i++) {
  80                 if (!(samplers & (1 << i)))
  81                         continue;
  82                 so_emit_reloc_markers(chan,
  83                                       state->hw[NV30_STATE_FRAGTEX0+i]);
  84                 samplers &= ~(1ULL << i);
  85         }
  86         so_emit_reloc_markers(chan, state->hw[NV30_STATE_FRAGPROG]);
  87         if (state->hw[NV30_STATE_VTXBUF] /*&& nv30->render_mode == HW*/)
  88                 so_emit_reloc_markers(chan, state->hw[NV30_STATE_VTXBUF]);
  89 }
  90
  91 boolean
  92 nv30_state_validate(struct nv30_context *nv30)
  93 {
  94 #if 0
  95         boolean was_sw = nv30->fallback_swtnl ? TRUE : FALSE;
  96
  97         if (nv30->render_mode != HW) {
  98                 /* Don't even bother trying to go back to hw if none
  99                  * of the states that caused swtnl previously have changed.
 100                  */
 101                 if ((nv30->fallback_swtnl & nv30->dirty)
 102                                 != nv30->fallback_swtnl)
 103                         return FALSE;
 104
 105                 /* Attempt to go to hwtnl again */
 106                 nv30->pipe.flush(&nv30->pipe, 0, NULL);
 107                 nv30->dirty |= (NV30_NEW_VIEWPORT |
 108                                 NV30_NEW_VERTPROG |
 109                                 NV30_NEW_ARRAYS);
 110                 nv30->render_mode = HW;
 111         }
 112 #endif
 113         nv30_state_do_validate(nv30, render_states);
 114 #if 0
 115         if (nv30->fallback_swtnl || nv30->fallback_swrast)
 116                 return FALSE;
 117
 118         if (was_sw)
 119                 NOUVEAU_ERR("swtnl->hw\n");
 120 #endif
 121         return TRUE;
 122 }