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_pot(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         case MESA_FORMAT_I8:
  58                 return NV10TCL_TX_FORMAT_FORMAT_A8;
  59
  60         case MESA_FORMAT_L8:
  61                 return NV10TCL_TX_FORMAT_FORMAT_L8;
  62
  63         case MESA_FORMAT_CI8:
  64                 return NV10TCL_TX_FORMAT_FORMAT_INDEX8;
  65
  66         default:
  67                 assert(0);
  68         }
  69 }
  70
  71 static uint32_t
  72 get_tex_format_rect(struct gl_texture_image *ti)
  73 {
  74         switch (ti->TexFormat) {
  75         case MESA_FORMAT_ARGB1555:
  76                 return NV10TCL_TX_FORMAT_FORMAT_A1R5G5B5_RECT;
  77
  78         case MESA_FORMAT_RGB565:
  79                 return NV10TCL_TX_FORMAT_FORMAT_R5G6B5_RECT;
  80
  81         case MESA_FORMAT_ARGB8888:
  82                 return NV10TCL_TX_FORMAT_FORMAT_A8R8G8B8_RECT;
  83
  84         case MESA_FORMAT_A8:
  85         case MESA_FORMAT_L8:
  86         case MESA_FORMAT_I8:
  87                 return NV10TCL_TX_FORMAT_FORMAT_A8_RECT;
  88
  89         default:
  90                 assert(0);
  91         }
  92 }
  93
  94 void
  95 nv10_emit_tex_obj(GLcontext *ctx, int emit)
  96 {
  97         const int i = emit - NOUVEAU_STATE_TEX_OBJ0;
  98         struct nouveau_channel *chan = context_chan(ctx);
  99         struct nouveau_grobj *celsius = context_eng3d(ctx);
 100         struct nouveau_bo_context *bctx = context_bctx_i(ctx, TEXTURE, i);
 101         const int bo_flags = NOUVEAU_BO_RD | NOUVEAU_BO_GART | NOUVEAU_BO_VRAM;
 102         struct gl_texture_object *t;
 103         struct nouveau_surface *s;
 104         struct gl_texture_image *ti;
 105         uint32_t tx_format, tx_filter, tx_enable;
 106
 107         if (!ctx->Texture.Unit[i]._ReallyEnabled) {
 108                 BEGIN_RING(chan, celsius, NV10TCL_TX_ENABLE(i), 1);
 109                 OUT_RING(chan, 0);
 110                 return;
 111         }
 112
 113         t = ctx->Texture.Unit[i]._Current;
 114         s = &to_nouveau_texture(t)->surfaces[t->BaseLevel];
 115         ti = t->Image[0][t->BaseLevel];
 116
 117         if (!nouveau_texture_validate(ctx, t))
 118                 return;
 119
 120         /* Recompute the texturing registers. */
 121         tx_format = nvgl_wrap_mode(t->WrapT) << 28
 122                 | nvgl_wrap_mode(t->WrapS) << 24
 123                 | ti->HeightLog2 << 20
 124                 | ti->WidthLog2 << 16
 125                 | 5 << 4 | 1 << 12;
 126
 127         tx_filter = nvgl_filter_mode(t->MagFilter) << 28
 128                 | nvgl_filter_mode(t->MinFilter) << 24;
 129
 130         tx_enable = NV10TCL_TX_ENABLE_ENABLE
 131                 | log2i(t->MaxAnisotropy) << 4;
 132
 133         if (t->Target == GL_TEXTURE_RECTANGLE) {
 134                 BEGIN_RING(chan, celsius, NV10TCL_TX_NPOT_PITCH(i), 1);
 135                 OUT_RING(chan, s->pitch << 16);
 136                 BEGIN_RING(chan, celsius, NV10TCL_TX_NPOT_SIZE(i), 1);
 137                 OUT_RING(chan, align(s->width, 2) << 16 | s->height);
 138
 139                 tx_format |= get_tex_format_rect(ti);
 140         } else {
 141                 tx_format |= get_tex_format_pot(ti);
 142         }
 143
 144         if (t->MinFilter != GL_NEAREST &&
 145             t->MinFilter != GL_LINEAR) {
 146                 int lod_min = t->MinLod;
 147                 int lod_max = MIN2(t->MaxLod, t->_MaxLambda);
 148                 int lod_bias = t->LodBias
 149                         + ctx->Texture.Unit[i].LodBias;
 150
 151                 lod_max = CLAMP(lod_max, 0, 15);
 152                 lod_min = CLAMP(lod_min, 0, 15);
 153                 lod_bias = CLAMP(lod_bias, 0, 15);
 154
 155                 tx_format |= NV10TCL_TX_FORMAT_MIPMAP;
 156                 tx_filter |= lod_bias << 8;
 157                 tx_enable |= lod_min << 26
 158                         | lod_max << 14;
 159         }
 160
 161         /* Write it to the hardware. */
 162         nouveau_bo_mark(bctx, celsius, NV10TCL_TX_FORMAT(i),
 163                         s->bo, tx_format, 0,
 164                         NV10TCL_TX_FORMAT_DMA0,
 165                         NV10TCL_TX_FORMAT_DMA1,
 166                         bo_flags | NOUVEAU_BO_OR);
 167
 168         nouveau_bo_markl(bctx, celsius, NV10TCL_TX_OFFSET(i),
 169                          s->bo, 0, bo_flags);
 170
 171         BEGIN_RING(chan, celsius, NV10TCL_TX_FILTER(i), 1);
 172         OUT_RING(chan, tx_filter);
 173
 174         BEGIN_RING(chan, celsius, NV10TCL_TX_ENABLE(i), 1);
 175         OUT_RING(chan, tx_enable);
 176 }
 177