src/gallium/drivers/nv40/nv40_fragtex.c

   1 #include "nv40_context.h"
   2
   3 #define _(m,tf,ts0x,ts0y,ts0z,ts0w,ts1x,ts1y,ts1z,ts1w,sx,sy,sz,sw)            \
   4 {                                                                              \
   5   TRUE,                                                                        \
   6   PIPE_FORMAT_##m,                                                             \
   7   NV40TCL_TEX_FORMAT_FORMAT_##tf,                                              \
   8   (NV40TCL_TEX_SWIZZLE_S0_X_##ts0x | NV40TCL_TEX_SWIZZLE_S0_Y_##ts0y |         \
   9    NV40TCL_TEX_SWIZZLE_S0_Z_##ts0z | NV40TCL_TEX_SWIZZLE_S0_W_##ts0w |         \
  10    NV40TCL_TEX_SWIZZLE_S1_X_##ts1x | NV40TCL_TEX_SWIZZLE_S1_Y_##ts1y |         \
  11    NV40TCL_TEX_SWIZZLE_S1_Z_##ts1z | NV40TCL_TEX_SWIZZLE_S1_W_##ts1w),         \
  12   ((NV40TCL_TEX_FILTER_SIGNED_RED*sx) | (NV40TCL_TEX_FILTER_SIGNED_GREEN*sy) |       \
  13    (NV40TCL_TEX_FILTER_SIGNED_BLUE*sz) | (NV40TCL_TEX_FILTER_SIGNED_ALPHA*sw))       \
  14 }
  15
  16 struct nv40_texture_format {
  17         boolean defined;
  18         uint    pipe;
  19         int     format;
  20         int     swizzle;
  21         int     sign;
  22 };
  23
  24 static struct nv40_texture_format
  25 nv40_texture_formats[] = {
  26         _(X8R8G8B8_UNORM, A8R8G8B8,   S1,   S1,   S1,  ONE, X, Y, Z, W, 0, 0, 0, 0),
  27         _(A8R8G8B8_UNORM, A8R8G8B8,   S1,   S1,   S1,   S1, X, Y, Z, W, 0, 0, 0, 0),
  28         _(A1R5G5B5_UNORM, A1R5G5B5,   S1,   S1,   S1,   S1, X, Y, Z, W, 0, 0, 0, 0),
  29         _(A4R4G4B4_UNORM, A4R4G4B4,   S1,   S1,   S1,   S1, X, Y, Z, W, 0, 0, 0, 0),
  30         _(R5G6B5_UNORM  , R5G6B5  ,   S1,   S1,   S1,  ONE, X, Y, Z, W, 0, 0, 0, 0),
  31         _(L8_UNORM      , L8      ,   S1,   S1,   S1,  ONE, X, X, X, X, 0, 0, 0, 0),
  32         _(A8_UNORM      , L8      , ZERO, ZERO, ZERO,   S1, X, X, X, X, 0, 0, 0, 0),
  33         _(R16_SNORM     , A16     , ZERO, ZERO,   S1,  ONE, X, X, X, Y, 1, 1, 1, 1),
  34         _(I8_UNORM      , L8      ,   S1,   S1,   S1,   S1, X, X, X, X, 0, 0, 0, 0),
  35         _(A8L8_UNORM    , A8L8    ,   S1,   S1,   S1,   S1, X, X, X, Y, 0, 0, 0, 0),
  36         _(Z16_UNORM     , Z16     ,   S1,   S1,   S1,  ONE, X, X, X, X, 0, 0, 0, 0),
  37         _(Z24S8_UNORM   , Z24     ,   S1,   S1,   S1,  ONE, X, X, X, X, 0, 0, 0, 0),
  38         _(DXT1_RGB      , DXT1    ,   S1,   S1,   S1,  ONE, X, Y, Z, W, 0, 0, 0, 0),
  39         _(DXT1_RGBA     , DXT1    ,   S1,   S1,   S1,   S1, X, Y, Z, W, 0, 0, 0, 0),
  40         _(DXT3_RGBA     , DXT3    ,   S1,   S1,   S1,   S1, X, Y, Z, W, 0, 0, 0, 0),
  41         _(DXT5_RGBA     , DXT5    ,   S1,   S1,   S1,   S1, X, Y, Z, W, 0, 0, 0, 0),
  42         {},
  43 };
  44
  45 static struct nv40_texture_format *
  46 nv40_fragtex_format(uint pipe_format)
  47 {
  48         struct nv40_texture_format *tf = nv40_texture_formats;
  49
  50         while (tf->defined) {
  51                 if (tf->pipe == pipe_format)
  52                         return tf;
  53                 tf++;
  54         }
  55
  56         NOUVEAU_ERR("unknown texture format %s\n", pf_name(pipe_format));
  57         return NULL;
  58 }
  59
  60
  61 static struct nouveau_stateobj *
  62 nv40_fragtex_build(struct nv40_context *nv40, int unit)
  63 {
  64         struct nv40_sampler_state *ps = nv40->tex_sampler[unit];
  65         struct nv40_miptree *nv40mt = nv40->tex_miptree[unit];
  66         struct nouveau_bo *bo = nouveau_bo(nv40mt->buffer);
  67         struct pipe_texture *pt = &nv40mt->base;
  68         struct nv40_texture_format *tf;
  69         struct nouveau_stateobj *so;
  70         uint32_t txf, txs, txp;
  71         unsigned tex_flags = NOUVEAU_BO_VRAM | NOUVEAU_BO_GART | NOUVEAU_BO_RD;
  72
  73         tf = nv40_fragtex_format(pt->format);
  74         if (!tf)
  75                 assert(0);
  76
  77         txf  = ps->fmt;
  78         txf |= tf->format | 0x8000;
  79         txf |= ((pt->last_level + 1) << NV40TCL_TEX_FORMAT_MIPMAP_COUNT_SHIFT);
  80
  81         if (1) /* XXX */
  82                 txf |= NV40TCL_TEX_FORMAT_NO_BORDER;
  83
  84         switch (pt->target) {
  85         case PIPE_TEXTURE_CUBE:
  86                 txf |= NV40TCL_TEX_FORMAT_CUBIC;
  87                 /* fall-through */
  88         case PIPE_TEXTURE_2D:
  89                 txf |= NV40TCL_TEX_FORMAT_DIMS_2D;
  90                 break;
  91         case PIPE_TEXTURE_3D:
  92                 txf |= NV40TCL_TEX_FORMAT_DIMS_3D;
  93                 break;
  94         case PIPE_TEXTURE_1D:
  95                 txf |= NV40TCL_TEX_FORMAT_DIMS_1D;
  96                 break;
  97         default:
  98                 NOUVEAU_ERR("Unknown target %d\n", pt->target);
  99                 return NULL;
 100         }
 101
 102         if (!(pt->tex_usage & NOUVEAU_TEXTURE_USAGE_LINEAR)) {
 103                 txp = 0;
 104         } else {
 105                 txp  = nv40mt->level[0].pitch;
 106                 txf |= NV40TCL_TEX_FORMAT_LINEAR;
 107         }
 108
 109         txs = tf->swizzle;
 110
 111         so = so_new(16, 2);
 112         so_method(so, nv40->screen->curie, NV40TCL_TEX_OFFSET(unit), 8);
 113         so_reloc (so, bo, 0, tex_flags | NOUVEAU_BO_LOW, 0, 0);
 114         so_reloc (so, bo, txf, tex_flags | NOUVEAU_BO_OR,
 115                       NV40TCL_TEX_FORMAT_DMA0, NV40TCL_TEX_FORMAT_DMA1);
 116         so_data  (so, ps->wrap);
 117         so_data  (so, NV40TCL_TEX_ENABLE_ENABLE | ps->en);
 118         so_data  (so, txs);
 119         so_data  (so, ps->filt | tf->sign | 0x2000 /*voodoo*/);
 120         so_data  (so, (pt->width[0] << NV40TCL_TEX_SIZE0_W_SHIFT) |
 121                        pt->height[0]);
 122         so_data  (so, ps->bcol);
 123         so_method(so, nv40->screen->curie, NV40TCL_TEX_SIZE1(unit), 1);
 124         so_data  (so, (pt->depth[0] << NV40TCL_TEX_SIZE1_DEPTH_SHIFT) | txp);
 125
 126         return so;
 127 }
 128
 129 static boolean
 130 nv40_fragtex_validate(struct nv40_context *nv40)
 131 {
 132         struct nv40_fragment_program *fp = nv40->fragprog;
 133         struct nv40_state *state = &nv40->state;
 134         struct nouveau_stateobj *so;
 135         unsigned samplers, unit;
 136
 137         samplers = state->fp_samplers & ~fp->samplers;
 138         while (samplers) {
 139                 unit = ffs(samplers) - 1;
 140                 samplers &= ~(1 << unit);
 141
 142                 so = so_new(2, 0);
 143                 so_method(so, nv40->screen->curie, NV40TCL_TEX_ENABLE(unit), 1);
 144                 so_data  (so, 0);
 145                 so_ref(so, &nv40->state.hw[NV40_STATE_FRAGTEX0 + unit]);
 146                 state->dirty |= (1ULL << (NV40_STATE_FRAGTEX0 + unit));
 147         }
 148
 149         samplers = nv40->dirty_samplers & fp->samplers;
 150         while (samplers) {
 151                 unit = ffs(samplers) - 1;
 152                 samplers &= ~(1 << unit);
 153
 154                 so = nv40_fragtex_build(nv40, unit);
 155                 so_ref(so, &nv40->state.hw[NV40_STATE_FRAGTEX0 + unit]);
 156                 so_ref(NULL, &so);
 157                 state->dirty |= (1ULL << (NV40_STATE_FRAGTEX0 + unit));
 158         }
 159
 160         nv40->state.fp_samplers = fp->samplers;
 161         return FALSE;
 162 }
 163
 164 struct nv40_state_entry nv40_state_fragtex = {
 165         .validate = nv40_fragtex_validate,
 166         .dirty = {
 167                 .pipe = NV40_NEW_SAMPLER | NV40_NEW_FRAGPROG,
 168                 .hw = 0
 169         }
 170 };
 171