src/gallium/drivers/nv30/nv30_fragtex.c

   1 #include "nv30_context.h"
   2
   3 static INLINE int log2i(int i)
   4 {
   5         int r = 0;
   6
   7         if (i & 0xffff0000) {
   8                 i >>= 16;
   9                 r += 16;
  10         }
  11         if (i & 0x0000ff00) {
  12                 i >>= 8;
  13                 r += 8;
  14         }
  15         if (i & 0x000000f0) {
  16                 i >>= 4;
  17                 r += 4;
  18         }
  19         if (i & 0x0000000c) {
  20                 i >>= 2;
  21                 r += 2;
  22         }
  23         if (i & 0x00000002) {
  24                 r += 1;
  25         }
  26         return r;
  27 }
  28
  29 #define _(m,tf,ts0x,ts0y,ts0z,ts0w,ts1x,ts1y,ts1z,ts1w)                        \
  30 {                                                                              \
  31   TRUE,                                                                        \
  32   PIPE_FORMAT_##m,                                                             \
  33   NV34TCL_TX_FORMAT_FORMAT_##tf,                                               \
  34   (NV34TCL_TX_SWIZZLE_S0_X_##ts0x | NV34TCL_TX_SWIZZLE_S0_Y_##ts0y |           \
  35    NV34TCL_TX_SWIZZLE_S0_Z_##ts0z | NV34TCL_TX_SWIZZLE_S0_W_##ts0w |           \
  36    NV34TCL_TX_SWIZZLE_S1_X_##ts1x | NV34TCL_TX_SWIZZLE_S1_Y_##ts1y |           \
  37    NV34TCL_TX_SWIZZLE_S1_Z_##ts1z | NV34TCL_TX_SWIZZLE_S1_W_##ts1w),           \
  38 }
  39
  40 struct nv30_texture_format {
  41         boolean defined;
  42         uint    pipe;
  43         int     format;
  44         int     swizzle;
  45 };
  46
  47 static struct nv30_texture_format
  48 nv30_texture_formats[] = {
  49         _(A8R8G8B8_UNORM, A8R8G8B8,   S1,   S1,   S1,   S1, X, Y, Z, W),
  50         _(A1R5G5B5_UNORM, A1R5G5B5,   S1,   S1,   S1,   S1, X, Y, Z, W),
  51         _(A4R4G4B4_UNORM, A4R4G4B4,   S1,   S1,   S1,   S1, X, Y, Z, W),
  52         _(R5G6B5_UNORM  , R5G6B5  ,   S1,   S1,   S1,  ONE, X, Y, Z, W),
  53         _(L8_UNORM      , L8      ,   S1,   S1,   S1,  ONE, X, X, X, X),
  54         _(A8_UNORM      , L8      , ZERO, ZERO, ZERO,   S1, X, X, X, X),
  55         _(I8_UNORM      , L8      ,   S1,   S1,   S1,   S1, X, X, X, X),
  56         _(A8L8_UNORM    , A8L8    ,   S1,   S1,   S1,   S1, X, X, X, Y),
  57 //      _(Z16_UNORM     , Z16     ,   S1,   S1,   S1,  ONE, X, X, X, X),
  58 //      _(Z24S8_UNORM   , Z24     ,   S1,   S1,   S1,  ONE, X, X, X, X),
  59         _(DXT1_RGB      , DXT1    ,   S1,   S1,   S1,  ONE, X, Y, Z, W),
  60         _(DXT1_RGBA     , DXT1    ,   S1,   S1,   S1,   S1, X, Y, Z, W),
  61         _(DXT3_RGBA     , DXT3    ,   S1,   S1,   S1,   S1, X, Y, Z, W),
  62         _(DXT5_RGBA     , DXT5    ,   S1,   S1,   S1,   S1, X, Y, Z, W),
  63         {},
  64 };
  65
  66 static struct nv30_texture_format *
  67 nv30_fragtex_format(uint pipe_format)
  68 {
  69         struct nv30_texture_format *tf = nv30_texture_formats;
  70         char fs[128];
  71
  72         while (tf->defined) {
  73                 if (tf->pipe == pipe_format)
  74                         return tf;
  75                 tf++;
  76         }
  77
  78         NOUVEAU_ERR("unknown texture format %s\n", pf_name(pipe_format));
  79         return NULL;
  80 }
  81
  82
  83 static struct nouveau_stateobj *
  84 nv30_fragtex_build(struct nv30_context *nv30, int unit)
  85 {
  86         struct nv30_sampler_state *ps = nv30->tex_sampler[unit];
  87         struct nv30_miptree *nv30mt = nv30->tex_miptree[unit];
  88         struct pipe_texture *pt = &nv30mt->base;
  89         struct nv30_texture_format *tf;
  90         struct nouveau_stateobj *so;
  91         uint32_t txf, txs /*, txp*/;
  92         /*int swizzled = 0;*/ /*XXX: implement in region code? */
  93         unsigned tex_flags = NOUVEAU_BO_VRAM | NOUVEAU_BO_GART | NOUVEAU_BO_RD;
  94
  95         tf = nv30_fragtex_format(pt->format);
  96         if (!tf)
  97                 assert(0);
  98
  99         txf  = tf->format;
 100         txf |= ((pt->last_level>0) ? NV34TCL_TX_FORMAT_MIPMAP : 0);
 101         txf |= log2i(pt->width[0]) << 20;
 102         txf |= log2i(pt->height[0]) << 24;
 103         txf |= log2i(pt->depth[0]) << 28;
 104         txf |= NV34TCL_TX_FORMAT_NO_BORDER | 0x10000;
 105
 106         switch (pt->target) {
 107         case PIPE_TEXTURE_CUBE:
 108                 txf |= NV34TCL_TX_FORMAT_CUBIC;
 109                 /* fall-through */
 110         case PIPE_TEXTURE_2D:
 111                 txf |= NV34TCL_TX_FORMAT_DIMS_2D;
 112                 break;
 113         case PIPE_TEXTURE_3D:
 114                 txf |= NV34TCL_TX_FORMAT_DIMS_3D;
 115                 break;
 116         case PIPE_TEXTURE_1D:
 117                 txf |= NV34TCL_TX_FORMAT_DIMS_1D;
 118                 break;
 119         default:
 120                 NOUVEAU_ERR("Unknown target %d\n", pt->target);
 121                 return NULL;
 122         }
 123
 124         txs = tf->swizzle;
 125
 126         so = so_new(16, 2);
 127         so_method(so, nv30->screen->rankine, NV34TCL_TX_OFFSET(unit), 8);
 128         so_reloc (so, nv30mt->buffer, 0, tex_flags | NOUVEAU_BO_LOW, 0, 0);
 129         so_reloc (so, nv30mt->buffer, txf, tex_flags | NOUVEAU_BO_OR,
 130                   NV34TCL_TX_FORMAT_DMA0, NV34TCL_TX_FORMAT_DMA1);
 131         so_data  (so, ps->wrap);
 132         so_data  (so, NV34TCL_TX_ENABLE_ENABLE | ps->en);
 133         so_data  (so, txs);
 134         so_data  (so, ps->filt | 0x2000 /*voodoo*/);
 135         so_data  (so, (pt->width[0] << NV34TCL_TX_NPOT_SIZE_W_SHIFT) |
 136                        pt->height[0]);
 137         so_data  (so, ps->bcol);
 138
 139         return so;
 140 }
 141
 142 static boolean
 143 nv30_fragtex_validate(struct nv30_context *nv30)
 144 {
 145         struct nv30_fragment_program *fp = nv30->fragprog;
 146         struct nv30_state *state = &nv30->state;
 147         struct nouveau_stateobj *so;
 148         unsigned samplers, unit;
 149
 150         samplers = state->fp_samplers & ~fp->samplers;
 151         while (samplers) {
 152                 unit = ffs(samplers) - 1;
 153                 samplers &= ~(1 << unit);
 154
 155                 so = so_new(2, 0);
 156                 so_method(so, nv30->screen->rankine, NV34TCL_TX_ENABLE(unit), 1);
 157                 so_data  (so, 0);
 158                 so_ref(so, &nv30->state.hw[NV30_STATE_FRAGTEX0 + unit]);
 159                 state->dirty |= (1ULL << (NV30_STATE_FRAGTEX0 + unit));
 160         }
 161
 162         samplers = nv30->dirty_samplers & fp->samplers;
 163         while (samplers) {
 164                 unit = ffs(samplers) - 1;
 165                 samplers &= ~(1 << unit);
 166
 167                 so = nv30_fragtex_build(nv30, unit);
 168                 so_ref(so, &nv30->state.hw[NV30_STATE_FRAGTEX0 + unit]);
 169                 state->dirty |= (1ULL << (NV30_STATE_FRAGTEX0 + unit));
 170         }
 171
 172         nv30->state.fp_samplers = fp->samplers;
 173         return FALSE;
 174 }
 175
 176 struct nv30_state_entry nv30_state_fragtex = {
 177         .validate = nv30_fragtex_validate,
 178         .dirty = {
 179                 .pipe = NV30_NEW_SAMPLER | NV30_NEW_FRAGPROG,
 180                 .hw = 0
 181         }
 182 };