src/gallium/drivers/nv30/nv30_fragtex.c

   1 #include "util/u_format.h"
   2
   3 #include "nvfx_context.h"
   4 #include "nouveau/nouveau_util.h"
   5
   6 #define _(m,tf,ts0x,ts0y,ts0z,ts0w,ts1x,ts1y,ts1z,ts1w)                        \
   7 {                                                                              \
   8   TRUE,                                                                        \
   9   PIPE_FORMAT_##m,                                                             \
  10   NV34TCL_TX_FORMAT_FORMAT_##tf,                                               \
  11   (NV34TCL_TX_SWIZZLE_S0_X_##ts0x | NV34TCL_TX_SWIZZLE_S0_Y_##ts0y |           \
  12    NV34TCL_TX_SWIZZLE_S0_Z_##ts0z | NV34TCL_TX_SWIZZLE_S0_W_##ts0w |           \
  13    NV34TCL_TX_SWIZZLE_S1_X_##ts1x | NV34TCL_TX_SWIZZLE_S1_Y_##ts1y |           \
  14    NV34TCL_TX_SWIZZLE_S1_Z_##ts1z | NV34TCL_TX_SWIZZLE_S1_W_##ts1w)            \
  15 }
  16
  17 struct nv30_texture_format {
  18         boolean defined;
  19         uint    pipe;
  20         int     format;
  21         int     swizzle;
  22 };
  23
  24 static struct nv30_texture_format
  25 nv30_texture_formats[] = {
  26         _(B8G8R8X8_UNORM, A8R8G8B8,   S1,   S1,   S1,  ONE, X, Y, Z, W),
  27         _(B8G8R8A8_UNORM, A8R8G8B8,   S1,   S1,   S1,   S1, X, Y, Z, W),
  28         _(B5G5R5A1_UNORM, A1R5G5B5,   S1,   S1,   S1,   S1, X, Y, Z, W),
  29         _(B4G4R4A4_UNORM, A4R4G4B4,   S1,   S1,   S1,   S1, X, Y, Z, W),
  30         _(B5G6R5_UNORM  , R5G6B5  ,   S1,   S1,   S1,  ONE, X, Y, Z, W),
  31         _(L8_UNORM      , L8      ,   S1,   S1,   S1,  ONE, X, X, X, X),
  32         _(A8_UNORM      , L8      , ZERO, ZERO, ZERO,   S1, X, X, X, X),
  33         _(I8_UNORM      , L8      ,   S1,   S1,   S1,   S1, X, X, X, X),
  34         _(L8A8_UNORM    , A8L8    ,   S1,   S1,   S1,   S1, X, X, X, Y),
  35         _(Z16_UNORM     , R5G6B5  ,   S1,   S1,   S1,  ONE, X, X, X, X),
  36         _(S8Z24_UNORM   , A8R8G8B8,   S1,   S1,   S1,  ONE, X, X, X, X),
  37         _(DXT1_RGB      , DXT1    ,   S1,   S1,   S1,  ONE, X, Y, Z, W),
  38         _(DXT1_RGBA     , DXT1    ,   S1,   S1,   S1,   S1, X, Y, Z, W),
  39         _(DXT3_RGBA     , DXT3    ,   S1,   S1,   S1,   S1, X, Y, Z, W),
  40         _(DXT5_RGBA     , DXT5    ,   S1,   S1,   S1,   S1, X, Y, Z, W),
  41         {},
  42 };
  43
  44 static struct nv30_texture_format *
  45 nv30_fragtex_format(uint pipe_format)
  46 {
  47         struct nv30_texture_format *tf = nv30_texture_formats;
  48
  49         while (tf->defined) {
  50                 if (tf->pipe == pipe_format)
  51                         return tf;
  52                 tf++;
  53         }
  54
  55         NOUVEAU_ERR("unknown texture format %s\n", util_format_name(pipe_format));
  56         return NULL;
  57 }
  58
  59
  60 struct nouveau_stateobj *
  61 nv30_fragtex_build(struct nvfx_context *nvfx, int unit)
  62 {
  63         struct nvfx_sampler_state *ps = nvfx->tex_sampler[unit];
  64         struct nvfx_miptree *nv30mt = nvfx->tex_miptree[unit];
  65         struct pipe_texture *pt = &nv30mt->base;
  66         struct nouveau_bo *bo = nouveau_bo(nv30mt->buffer);
  67         struct nv30_texture_format *tf;
  68         struct nouveau_stateobj *so;
  69         uint32_t txf, txs;
  70         unsigned tex_flags = NOUVEAU_BO_VRAM | NOUVEAU_BO_GART | NOUVEAU_BO_RD;
  71
  72         tf = nv30_fragtex_format(pt->format);
  73         if (!tf)
  74                 return NULL;
  75
  76         txf  = tf->format;
  77         txf |= ((pt->last_level>0) ? NV34TCL_TX_FORMAT_MIPMAP : 0);
  78         txf |= log2i(pt->width0) << NV34TCL_TX_FORMAT_BASE_SIZE_U_SHIFT;
  79         txf |= log2i(pt->height0) << NV34TCL_TX_FORMAT_BASE_SIZE_V_SHIFT;
  80         txf |= log2i(pt->depth0) << NV34TCL_TX_FORMAT_BASE_SIZE_W_SHIFT;
  81         txf |= NV34TCL_TX_FORMAT_NO_BORDER | 0x10000;
  82
  83         switch (pt->target) {
  84         case PIPE_TEXTURE_CUBE:
  85                 txf |= NV34TCL_TX_FORMAT_CUBIC;
  86                 /* fall-through */
  87         case PIPE_TEXTURE_2D:
  88                 txf |= NV34TCL_TX_FORMAT_DIMS_2D;
  89                 break;
  90         case PIPE_TEXTURE_3D:
  91                 txf |= NV34TCL_TX_FORMAT_DIMS_3D;
  92                 break;
  93         case PIPE_TEXTURE_1D:
  94                 txf |= NV34TCL_TX_FORMAT_DIMS_1D;
  95                 break;
  96         default:
  97                 NOUVEAU_ERR("Unknown target %d\n", pt->target);
  98                 return NULL;
  99         }
 100
 101         txs = tf->swizzle;
 102
 103         so = so_new(1, 8, 2);
 104         so_method(so, nvfx->screen->eng3d, NV34TCL_TX_OFFSET(unit), 8);
 105         so_reloc (so, bo, 0, tex_flags | NOUVEAU_BO_LOW, 0, 0);
 106         so_reloc (so, bo, txf, tex_flags | NOUVEAU_BO_OR,
 107                       NV34TCL_TX_FORMAT_DMA0, NV34TCL_TX_FORMAT_DMA1);
 108         so_data  (so, ps->wrap);
 109         so_data  (so, NV34TCL_TX_ENABLE_ENABLE | ps->en);
 110         so_data  (so, txs);
 111         so_data  (so, ps->filt | 0x2000 /*voodoo*/);
 112         so_data  (so, (pt->width0 << NV34TCL_TX_NPOT_SIZE_W_SHIFT) |
 113                        pt->height0);
 114         so_data  (so, ps->bcol);
 115
 116         return so;
 117 }
 118