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