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;
  45         uint64_t states;
  46
  47         /* XXX: racy!
  48          */
  49         if (nv30 != screen->cur_ctx) {
  50                 for (i = 0; i < NV30_STATE_MAX; i++) {
  51                         if (state->hw[i] && screen->state[i] != state->hw[i])
  52                                 state->dirty |= (1ULL << i);
  53                 }
  54
  55                 screen->cur_ctx = nv30;
  56         }
  57
  58         for (i = 0, states = state->dirty; states; i++) {
  59                 if (!(states & (1ULL << i)))
  60                         continue;
  61                 so_ref (state->hw[i], &nv30->screen->state[i]);
  62                 if (state->hw[i])
  63                         so_emit(chan, nv30->screen->state[i]);
  64                 states &= ~(1ULL << i);
  65         }
  66
  67         state->dirty = 0;
  68 }
  69
  70 void
  71 nv30_state_flush_notify(struct nouveau_channel *chan)
  72 {
  73         struct nv30_context *nv30 = chan->user_private;
  74         struct nv30_state *state = &nv30->state;
  75         unsigned i, samplers;
  76
  77         so_emit_reloc_markers(chan, state->hw[NV30_STATE_FB]);
  78         for (i = 0, samplers = state->fp_samplers; i < 16 && samplers; i++) {
  79                 if (!(samplers & (1 << i)))
  80                         continue;
  81                 so_emit_reloc_markers(chan,
  82                                       state->hw[NV30_STATE_FRAGTEX0+i]);
  83                 samplers &= ~(1ULL << i);
  84         }
  85         so_emit_reloc_markers(chan, state->hw[NV30_STATE_FRAGPROG]);
  86         if (state->hw[NV30_STATE_VTXBUF] /*&& nv30->render_mode == HW*/)
  87                 so_emit_reloc_markers(chan, state->hw[NV30_STATE_VTXBUF]);
  88 }
  89
  90 boolean
  91 nv30_state_validate(struct nv30_context *nv30)
  92 {
  93 #if 0
  94         boolean was_sw = nv30->fallback_swtnl ? TRUE : FALSE;
  95
  96         if (nv30->render_mode != HW) {
  97                 /* Don't even bother trying to go back to hw if none
  98                  * of the states that caused swtnl previously have changed.
  99                  */
 100                 if ((nv30->fallback_swtnl & nv30->dirty)
 101                                 != nv30->fallback_swtnl)
 102                         return FALSE;
 103
 104                 /* Attempt to go to hwtnl again */
 105                 nv30->pipe.flush(&nv30->pipe, 0, NULL);
 106                 nv30->dirty |= (NV30_NEW_VIEWPORT |
 107                                 NV30_NEW_VERTPROG |
 108                                 NV30_NEW_ARRAYS);
 109                 nv30->render_mode = HW;
 110         }
 111 #endif
 112         nv30_state_do_validate(nv30, render_states);
 113 #if 0
 114         if (nv30->fallback_swtnl || nv30->fallback_swrast)
 115                 return FALSE;
 116
 117         if (was_sw)
 118                 NOUVEAU_ERR("swtnl->hw\n");
 119 #endif
 120         return TRUE;
 121 }