src/gallium/drivers/nv20/nv20_fragtex.c

   1 #include "nv20_context.h"
   2 #include "nouveau/nouveau_util.h"
   3
   4 #define _(m,tf)                                                                \
   5 {                                                                              \
   6   TRUE,                                                                        \
   7   PIPE_FORMAT_##m,                                                             \
   8   NV20TCL_TX_FORMAT_FORMAT_##tf,                                               \
   9 }
  10
  11 struct nv20_texture_format {
  12         boolean defined;
  13         uint    pipe;
  14         int     format;
  15 };
  16
  17 static struct nv20_texture_format
  18 nv20_texture_formats[] = {
  19         _(A8R8G8B8_UNORM, A8R8G8B8),
  20         _(A1R5G5B5_UNORM, A1R5G5B5),
  21         _(A4R4G4B4_UNORM, A4R4G4B4),
  22         _(L8_UNORM      , L8      ),
  23         _(A8_UNORM      , A8      ),
  24         _(A8L8_UNORM    , A8L8    ),
  25 /*      _(RGB_DXT1      , DXT1,   ), */
  26 /*      _(RGBA_DXT1     , DXT1,   ), */
  27 /*      _(RGBA_DXT3     , DXT3,   ), */
  28 /*      _(RGBA_DXT5     , DXT5,   ), */
  29         {},
  30 };
  31
  32 static struct nv20_texture_format *
  33 nv20_fragtex_format(uint pipe_format)
  34 {
  35         struct nv20_texture_format *tf = nv20_texture_formats;
  36
  37         while (tf->defined) {
  38                 if (tf->pipe == pipe_format)
  39                         return tf;
  40                 tf++;
  41         }
  42
  43         return NULL;
  44 }
  45
  46
  47 static void
  48 nv20_fragtex_build(struct nv20_context *nv20, int unit)
  49 {
  50 #if 0
  51         struct nv20_sampler_state *ps = nv20->tex_sampler[unit];
  52         struct nv20_miptree *nv20mt = nv20->tex_miptree[unit];
  53         struct pipe_texture *pt = &nv20mt->base;
  54         struct nv20_texture_format *tf;
  55         uint32_t txf, txs, txp;
  56
  57         tf = nv20_fragtex_format(pt->format);
  58         if (!tf || !tf->defined) {
  59                 NOUVEAU_ERR("Unsupported texture format: 0x%x\n", pt->format);
  60                 return;
  61         }
  62
  63         txf  = tf->format << 8;
  64         txf |= (pt->last_level + 1) << 16;
  65         txf |= log2i(pt->width[0]) << 20;
  66         txf |= log2i(pt->height[0]) << 24;
  67         txf |= log2i(pt->depth[0]) << 28;
  68         txf |= 8;
  69
  70         switch (pt->target) {
  71         case PIPE_TEXTURE_CUBE:
  72                 txf |= NV10TCL_TX_FORMAT_CUBE_MAP;
  73                 /* fall-through */
  74         case PIPE_TEXTURE_2D:
  75                 txf |= (2<<4);
  76                 break;
  77         case PIPE_TEXTURE_1D:
  78                 txf |= (1<<4);
  79                 break;
  80         default:
  81                 NOUVEAU_ERR("Unknown target %d\n", pt->target);
  82                 return;
  83         }
  84
  85         BEGIN_RING(kelvin, NV10TCL_TX_OFFSET(unit), 8);
  86         OUT_RELOCl(nv20mt->buffer, 0, NOUVEAU_BO_VRAM | NOUVEAU_BO_GART | NOUVEAU_BO_RD);
  87         OUT_RELOCd(nv20mt->buffer,txf,NOUVEAU_BO_VRAM | NOUVEAU_BO_GART | NOUVEAU_BO_OR | NOUVEAU_BO_RD, 1/*VRAM*/,2/*TT*/);
  88         OUT_RING  (ps->wrap);
  89         OUT_RING  (0x40000000); /* enable */
  90         OUT_RING  (txs);
  91         OUT_RING  (ps->filt | 0x2000 /* magic */);
  92         OUT_RING  ((pt->width[0] << 16) | pt->height[0]);
  93         OUT_RING  (ps->bcol);
  94 #endif
  95 }
  96
  97 void
  98 nv20_fragtex_bind(struct nv20_context *nv20)
  99 {
 100 #if 0
 101         struct nv20_fragment_program *fp = nv20->fragprog.active;
 102         unsigned samplers, unit;
 103
 104         samplers = nv20->fp_samplers & ~fp->samplers;
 105         while (samplers) {
 106                 unit = ffs(samplers) - 1;
 107                 samplers &= ~(1 << unit);
 108
 109                 BEGIN_RING(kelvin, NV10TCL_TX_ENABLE(unit), 1);
 110                 OUT_RING  (0);
 111         }
 112
 113         samplers = nv20->dirty_samplers & fp->samplers;
 114         while (samplers) {
 115                 unit = ffs(samplers) - 1;
 116                 samplers &= ~(1 << unit);
 117
 118                 nv20_fragtex_build(nv20, unit);
 119         }
 120
 121         nv20->fp_samplers = fp->samplers;
 122 #endif
 123 }
 124