src/mesa/drivers/dri/nouveau/nv10_state_tex.c

   1 /*
   2  * Copyright (C) 2009 Francisco Jerez.
   3  * All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining
   6  * a copy of this software and associated documentation files (the
   7  * "Software"), to deal in the Software without restriction, including
   8  * without limitation the rights to use, copy, modify, merge, publish,
   9  * distribute, sublicense, and/or sell copies of the Software, and to
  10  * permit persons to whom the Software is furnished to do so, subject to
  11  * the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the
  14  * next paragraph) shall be included in all copies or substantial
  15  * portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  18  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  20  * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
  21  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  22  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  23  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24  *
  25  */
  26
  27 #include "nouveau_driver.h"
  28 #include "nouveau_context.h"
  29 #include "nouveau_gldefs.h"
  30 #include "nouveau_texture.h"
  31 #include "nouveau_class.h"
  32 #include "nouveau_util.h"
  33 #include "nv10_driver.h"
  34
  35 void
  36 nv10_emit_tex_gen(GLcontext *ctx, int emit)
  37 {
  38 }
  39
  40 static uint32_t
  41 get_tex_format(struct gl_texture_image *ti)
  42 {
  43         switch (ti->TexFormat) {
  44         case MESA_FORMAT_ARGB8888:
  45                 return NV10TCL_TX_FORMAT_FORMAT_A8R8G8B8;
  46
  47         case MESA_FORMAT_ARGB1555:
  48                 return NV10TCL_TX_FORMAT_FORMAT_A1R5G5B5;
  49
  50         case MESA_FORMAT_ARGB4444:
  51                 return NV10TCL_TX_FORMAT_FORMAT_A4R4G4B4;
  52
  53         case MESA_FORMAT_RGB565:
  54                 return NV10TCL_TX_FORMAT_FORMAT_R5G6B5;
  55
  56         case MESA_FORMAT_A8:
  57                 return NV10TCL_TX_FORMAT_FORMAT_A8;
  58
  59         case MESA_FORMAT_L8:
  60                 return NV10TCL_TX_FORMAT_FORMAT_L8;
  61
  62         case MESA_FORMAT_CI8:
  63                 return NV10TCL_TX_FORMAT_FORMAT_INDEX8;
  64
  65         default:
  66                 assert(0);
  67         }
  68 }
  69
  70 void
  71 nv10_emit_tex_obj(GLcontext *ctx, int emit)
  72 {
  73         const int i = emit - NOUVEAU_STATE_TEX_OBJ0;
  74         struct nouveau_channel *chan = context_chan(ctx);
  75         struct nouveau_grobj *celsius = context_eng3d(ctx);
  76         struct nouveau_bo_context *bctx = context_bctx_i(ctx, TEXTURE, i);
  77         const int bo_flags = NOUVEAU_BO_RD | NOUVEAU_BO_GART | NOUVEAU_BO_VRAM;
  78         struct gl_texture_object *t;
  79         struct nouveau_surface *s;
  80         struct gl_texture_image *ti;
  81         uint32_t tx_format, tx_filter, tx_enable;
  82
  83         if (!ctx->Texture.Unit[i]._ReallyEnabled) {
  84                 BEGIN_RING(chan, celsius, NV10TCL_TX_ENABLE(i), 1);
  85                 OUT_RING(chan, 0);
  86                 return;
  87         }
  88
  89         t = ctx->Texture.Unit[i]._Current;
  90         s = &to_nouveau_texture(t)->surfaces[t->BaseLevel];
  91         ti = t->Image[0][t->BaseLevel];
  92
  93         if (!nouveau_texture_validate(ctx, t))
  94                 return;
  95
  96         /* Recompute the texturing registers. */
  97         tx_format = nvgl_wrap_mode(t->WrapT) << 28
  98                 | nvgl_wrap_mode(t->WrapS) << 24
  99                 | ti->HeightLog2 << 20
 100                 | ti->WidthLog2 << 16
 101                 | get_tex_format(ti)
 102                 | 5 << 4 | 1 << 12;
 103
 104         tx_filter = nvgl_filter_mode(t->MagFilter) << 28
 105                 | nvgl_filter_mode(t->MinFilter) << 24;
 106
 107         tx_enable = NV10TCL_TX_ENABLE_ENABLE
 108                 | log2i(t->MaxAnisotropy) << 4;
 109
 110         if (t->MinFilter != GL_NEAREST &&
 111             t->MinFilter != GL_LINEAR) {
 112                 int lod_min = t->MinLod;
 113                 int lod_max = MIN2(t->MaxLod, t->_MaxLambda);
 114                 int lod_bias = t->LodBias
 115                         + ctx->Texture.Unit[i].LodBias;
 116
 117                 lod_max = CLAMP(lod_max, 0, 15);
 118                 lod_min = CLAMP(lod_min, 0, 15);
 119                 lod_bias = CLAMP(lod_bias, 0, 15);
 120
 121                 tx_format |= NV10TCL_TX_FORMAT_MIPMAP;
 122                 tx_filter |= lod_bias << 8;
 123                 tx_enable |= lod_min << 26
 124                         | lod_max << 14;
 125         }
 126
 127         /* Write it to the hardware. */
 128         nouveau_bo_mark(bctx, celsius, NV10TCL_TX_FORMAT(i),
 129                         s->bo, tx_format, 0,
 130                         NV10TCL_TX_FORMAT_DMA0,
 131                         NV10TCL_TX_FORMAT_DMA1,
 132                         bo_flags | NOUVEAU_BO_OR);
 133
 134         nouveau_bo_markl(bctx, celsius, NV10TCL_TX_OFFSET(i),
 135                          s->bo, 0, bo_flags);
 136
 137         BEGIN_RING(chan, celsius, NV10TCL_TX_FILTER(i), 1);
 138         OUT_RING(chan, tx_filter);
 139
 140         BEGIN_RING(chan, celsius, NV10TCL_TX_ENABLE(i), 1);
 141         OUT_RING(chan, tx_enable);
 142 }
 143