src/mesa/drivers/dri/nouveau/nv20_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 "nv20_driver.h"
  34
  35 static uint32_t
  36 get_tex_format_pot(struct gl_texture_image *ti)
  37 {
  38         switch (ti->TexFormat) {
  39         case MESA_FORMAT_ARGB8888:
  40                 return NV20TCL_TX_FORMAT_FORMAT_A8R8G8B8;
  41
  42         case MESA_FORMAT_ARGB1555:
  43                 return NV20TCL_TX_FORMAT_FORMAT_A1R5G5B5;
  44
  45         case MESA_FORMAT_ARGB4444:
  46                 return NV20TCL_TX_FORMAT_FORMAT_A4R4G4B4;
  47
  48         case MESA_FORMAT_RGB565:
  49                 return NV20TCL_TX_FORMAT_FORMAT_R5G6B5;
  50
  51         case MESA_FORMAT_A8:
  52         case MESA_FORMAT_I8:
  53                 return NV20TCL_TX_FORMAT_FORMAT_A8;
  54
  55         case MESA_FORMAT_L8:
  56                 return NV20TCL_TX_FORMAT_FORMAT_L8;
  57
  58         case MESA_FORMAT_CI8:
  59                 return NV20TCL_TX_FORMAT_FORMAT_INDEX8;
  60
  61         default:
  62                 assert(0);
  63         }
  64 }
  65
  66 static uint32_t
  67 get_tex_format_rect(struct gl_texture_image *ti)
  68 {
  69         switch (ti->TexFormat) {
  70         case MESA_FORMAT_ARGB1555:
  71                 return NV20TCL_TX_FORMAT_FORMAT_A1R5G5B5_RECT;
  72
  73         case MESA_FORMAT_RGB565:
  74                 return NV20TCL_TX_FORMAT_FORMAT_R5G6B5_RECT;
  75
  76         case MESA_FORMAT_ARGB8888:
  77                 return NV20TCL_TX_FORMAT_FORMAT_A8R8G8B8_RECT;
  78
  79         case MESA_FORMAT_L8:
  80                 return NV20TCL_TX_FORMAT_FORMAT_L8_RECT;
  81
  82         case MESA_FORMAT_A8:
  83         case MESA_FORMAT_I8:
  84                 return NV20TCL_TX_FORMAT_FORMAT_A8_RECT;
  85
  86         case MESA_FORMAT_ARGB4444:
  87                 return NV20TCL_TX_FORMAT_FORMAT_A4R4G4B4_RECT;
  88
  89         default:
  90                 assert(0);
  91         }
  92 }
  93
  94 void
  95 nv20_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 *kelvin = 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_wrap, tx_enable;
 106
 107         if (!ctx->Texture.Unit[i]._ReallyEnabled) {
 108                 BEGIN_RING(chan, kelvin, NV20TCL_TX_ENABLE(i), 1);
 109                 OUT_RING(chan, 0);
 110
 111                 context_dirty(ctx, TEX_SHADER);
 112                 return;
 113         }
 114
 115         t = ctx->Texture.Unit[i]._Current;
 116         s = &to_nouveau_texture(t)->surfaces[t->BaseLevel];
 117         ti = t->Image[0][t->BaseLevel];
 118
 119         if (!nouveau_texture_validate(ctx, t))
 120                 return;
 121
 122         /* Recompute the texturing registers. */
 123         tx_format = ti->DepthLog2 << 28
 124                 | ti->HeightLog2 << 24
 125                 | ti->WidthLog2 << 20
 126                 | NV20TCL_TX_FORMAT_DIMS_2D
 127                 | NV20TCL_TX_FORMAT_NO_BORDER
 128                 | 1 << 16;
 129
 130         tx_wrap = nvgl_wrap_mode(t->WrapR) << 16
 131                 | nvgl_wrap_mode(t->WrapT) << 8
 132                 | nvgl_wrap_mode(t->WrapS) << 0;
 133
 134         tx_filter = nvgl_filter_mode(t->MagFilter) << 24
 135                 | nvgl_filter_mode(t->MinFilter) << 16;
 136
 137         tx_enable = NV20TCL_TX_ENABLE_ENABLE
 138                 | log2i(t->MaxAnisotropy) << 4;
 139
 140         if (t->Target == GL_TEXTURE_RECTANGLE) {
 141                 BEGIN_RING(chan, kelvin, NV20TCL_TX_NPOT_PITCH(i), 1);
 142                 OUT_RING(chan, s->pitch << 16);
 143                 BEGIN_RING(chan, kelvin, NV20TCL_TX_NPOT_SIZE(i), 1);
 144                 OUT_RING(chan, s->width << 16 | s->height);
 145
 146                 tx_format |= get_tex_format_rect(ti);
 147         } else {
 148                 tx_format |= get_tex_format_pot(ti);
 149         }
 150
 151         if (t->MinFilter != GL_NEAREST &&
 152             t->MinFilter != GL_LINEAR) {
 153                 int lod_min = t->MinLod;
 154                 int lod_max = MIN2(t->MaxLod, t->_MaxLambda);
 155                 int lod_bias = t->LodBias
 156                         + ctx->Texture.Unit[i].LodBias;
 157
 158                 lod_max = CLAMP(lod_max, 0, 15);
 159                 lod_min = CLAMP(lod_min, 0, 15);
 160                 lod_bias = CLAMP(lod_bias, 0, 15);
 161
 162                 tx_format |= NV20TCL_TX_FORMAT_MIPMAP;
 163                 tx_filter |= lod_bias << 8;
 164                 tx_enable |= lod_min << 26
 165                         | lod_max << 14;
 166         }
 167
 168         /* Write it to the hardware. */
 169         nouveau_bo_mark(bctx, kelvin, NV20TCL_TX_FORMAT(i),
 170                         s->bo, tx_format, 0,
 171                         NV20TCL_TX_FORMAT_DMA0,
 172                         NV20TCL_TX_FORMAT_DMA1,
 173                         bo_flags | NOUVEAU_BO_OR);
 174
 175         nouveau_bo_markl(bctx, kelvin, NV20TCL_TX_OFFSET(i),
 176                          s->bo, 0, bo_flags);
 177
 178         BEGIN_RING(chan, kelvin, NV20TCL_TX_WRAP(i), 1);
 179         OUT_RING(chan, tx_wrap);
 180
 181         BEGIN_RING(chan, kelvin, NV20TCL_TX_FILTER(i), 1);
 182         OUT_RING(chan, tx_filter);
 183
 184         BEGIN_RING(chan, kelvin, NV20TCL_TX_ENABLE(i), 1);
 185         OUT_RING(chan, tx_enable);
 186
 187         context_dirty(ctx, TEX_SHADER);
 188 }
 189
 190 void
 191 nv20_emit_tex_shader(GLcontext *ctx, int emit)
 192 {
 193         struct nouveau_channel *chan = context_chan(ctx);
 194         struct nouveau_grobj *kelvin = context_eng3d(ctx);
 195         uint32_t tx_shader_op = 0;
 196         int i;
 197
 198         for (i = 0; i < NV20_TEXTURE_UNITS; i++) {
 199                 if (!ctx->Texture.Unit[i]._ReallyEnabled)
 200                         continue;
 201
 202                 tx_shader_op |= NV20TCL_TX_SHADER_OP_TX0_TEXTURE_2D << 5 * i;
 203         }
 204
 205         BEGIN_RING(chan, kelvin, NV20TCL_TX_SHADER_OP, 1);
 206         OUT_RING(chan, tx_shader_op);
 207 }