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 "nv20_3d.xml.h"
  32 #include "nouveau_util.h"
  33 #include "nv20_driver.h"
  34
  35 void
  36 nv20_emit_tex_gen(struct gl_context *ctx, int emit)
  37 {
  38         const int i = emit - NOUVEAU_STATE_TEX_GEN0;
  39         struct nouveau_context *nctx = to_nouveau_context(ctx);
  40         struct nouveau_channel *chan = context_chan(ctx);
  41         struct nouveau_grobj *kelvin = context_eng3d(ctx);
  42         struct gl_texture_unit *unit = &ctx->Texture.Unit[i];
  43         int j;
  44
  45         for (j = 0; j < 4; j++) {
  46                 if (nctx->fallback == HWTNL && (unit->TexGenEnabled & 1 << j)) {
  47                         struct gl_texgen *coord = get_texgen_coord(unit, j);
  48                         float *k = get_texgen_coeff(coord);
  49
  50                         if (k) {
  51                                 BEGIN_RING(chan, kelvin,
  52                                            NV20_3D_TEX_GEN_COEFF(i, j), 4);
  53                                 OUT_RINGp(chan, k, 4);
  54                         }
  55
  56                         BEGIN_RING(chan, kelvin, NV20_3D_TEX_GEN_MODE(i, j), 1);
  57                         OUT_RING(chan, nvgl_texgen_mode(coord->Mode));
  58
  59                 } else {
  60                         BEGIN_RING(chan, kelvin, NV20_3D_TEX_GEN_MODE(i, j), 1);
  61                         OUT_RING(chan, 0);
  62                 }
  63         }
  64 }
  65
  66 void
  67 nv20_emit_tex_mat(struct gl_context *ctx, int emit)
  68 {
  69         const int i = emit - NOUVEAU_STATE_TEX_MAT0;
  70         struct nouveau_context *nctx = to_nouveau_context(ctx);
  71         struct nouveau_channel *chan = context_chan(ctx);
  72         struct nouveau_grobj *kelvin = context_eng3d(ctx);
  73
  74         if (nctx->fallback == HWTNL &&
  75             (ctx->Texture._TexMatEnabled & 1 << i)) {
  76                 BEGIN_RING(chan, kelvin, NV20_3D_TEX_MATRIX_ENABLE(i), 1);
  77                 OUT_RING(chan, 1);
  78
  79                 BEGIN_RING(chan, kelvin, NV20_3D_TEX_MATRIX(i,0), 16);
  80                 OUT_RINGm(chan, ctx->TextureMatrixStack[i].Top->m);
  81
  82         } else {
  83                 BEGIN_RING(chan, kelvin, NV20_3D_TEX_MATRIX_ENABLE(i), 1);
  84                 OUT_RING(chan, 0);
  85         }
  86 }
  87
  88 static uint32_t
  89 get_tex_format_pot(struct gl_texture_image *ti)
  90 {
  91         switch (ti->TexFormat) {
  92         case MESA_FORMAT_ARGB8888:
  93                 return NV20_3D_TEX_FORMAT_FORMAT_A8R8G8B8;
  94
  95         case MESA_FORMAT_ARGB1555:
  96                 return NV20_3D_TEX_FORMAT_FORMAT_A1R5G5B5;
  97
  98         case MESA_FORMAT_ARGB4444:
  99                 return NV20_3D_TEX_FORMAT_FORMAT_A4R4G4B4;
 100
 101         case MESA_FORMAT_XRGB8888:
 102                 return NV20_3D_TEX_FORMAT_FORMAT_X8R8G8B8;
 103
 104         case MESA_FORMAT_RGB565:
 105                 return NV20_3D_TEX_FORMAT_FORMAT_R5G6B5;
 106
 107         case MESA_FORMAT_A8:
 108         case MESA_FORMAT_I8:
 109                 return NV20_3D_TEX_FORMAT_FORMAT_I8;
 110
 111         case MESA_FORMAT_L8:
 112                 return NV20_3D_TEX_FORMAT_FORMAT_L8;
 113
 114         case MESA_FORMAT_CI8:
 115                 return NV20_3D_TEX_FORMAT_FORMAT_INDEX8;
 116
 117         default:
 118                 assert(0);
 119         }
 120 }
 121
 122 static uint32_t
 123 get_tex_format_rect(struct gl_texture_image *ti)
 124 {
 125         switch (ti->TexFormat) {
 126         case MESA_FORMAT_ARGB8888:
 127                 return NV20_3D_TEX_FORMAT_FORMAT_A8R8G8B8_RECT;
 128
 129         case MESA_FORMAT_ARGB1555:
 130                 return NV20_3D_TEX_FORMAT_FORMAT_A1R5G5B5_RECT;
 131
 132         case MESA_FORMAT_ARGB4444:
 133                 return NV20_3D_TEX_FORMAT_FORMAT_A4R4G4B4_RECT;
 134
 135         case MESA_FORMAT_XRGB8888:
 136                 return NV20_3D_TEX_FORMAT_FORMAT_R8G8B8_RECT;
 137
 138         case MESA_FORMAT_RGB565:
 139                 return NV20_3D_TEX_FORMAT_FORMAT_R5G6B5_RECT;
 140
 141         case MESA_FORMAT_L8:
 142                 return NV20_3D_TEX_FORMAT_FORMAT_L8_RECT;
 143
 144         case MESA_FORMAT_A8:
 145         case MESA_FORMAT_I8:
 146                 return NV20_3D_TEX_FORMAT_FORMAT_I8_RECT;
 147
 148         default:
 149                 assert(0);
 150         }
 151 }
 152
 153 void
 154 nv20_emit_tex_obj(struct gl_context *ctx, int emit)
 155 {
 156         const int i = emit - NOUVEAU_STATE_TEX_OBJ0;
 157         struct nouveau_channel *chan = context_chan(ctx);
 158         struct nouveau_grobj *kelvin = context_eng3d(ctx);
 159         struct nouveau_bo_context *bctx = context_bctx_i(ctx, TEXTURE, i);
 160         const int bo_flags = NOUVEAU_BO_RD | NOUVEAU_BO_GART | NOUVEAU_BO_VRAM;
 161         struct gl_texture_object *t;
 162         struct nouveau_surface *s;
 163         struct gl_texture_image *ti;
 164         uint32_t tx_format, tx_filter, tx_wrap, tx_enable;
 165
 166         if (!ctx->Texture.Unit[i]._ReallyEnabled) {
 167                 BEGIN_RING(chan, kelvin, NV20_3D_TEX_ENABLE(i), 1);
 168                 OUT_RING(chan, 0);
 169
 170                 context_dirty(ctx, TEX_SHADER);
 171                 return;
 172         }
 173
 174         t = ctx->Texture.Unit[i]._Current;
 175         s = &to_nouveau_texture(t)->surfaces[t->BaseLevel];
 176         ti = t->Image[0][t->BaseLevel];
 177
 178         if (!nouveau_texture_validate(ctx, t))
 179                 return;
 180
 181         /* Recompute the texturing registers. */
 182         tx_format = ti->DepthLog2 << 28
 183                 | ti->HeightLog2 << 24
 184                 | ti->WidthLog2 << 20
 185                 | NV20_3D_TEX_FORMAT_DIMS_2D
 186                 | NV20_3D_TEX_FORMAT_NO_BORDER
 187                 | 1 << 16;
 188
 189         tx_wrap = nvgl_wrap_mode(t->WrapR) << 16
 190                 | nvgl_wrap_mode(t->WrapT) << 8
 191                 | nvgl_wrap_mode(t->WrapS) << 0;
 192
 193         tx_filter = nvgl_filter_mode(t->MagFilter) << 24
 194                 | nvgl_filter_mode(t->MinFilter) << 16
 195                 | 2 << 12;
 196
 197         tx_enable = NV20_3D_TEX_ENABLE_ENABLE
 198                 | log2i(t->MaxAnisotropy) << 4;
 199
 200         if (t->Target == GL_TEXTURE_RECTANGLE) {
 201                 BEGIN_RING(chan, kelvin, NV20_3D_TEX_NPOT_PITCH(i), 1);
 202                 OUT_RING(chan, s->pitch << 16);
 203                 BEGIN_RING(chan, kelvin, NV20_3D_TEX_NPOT_SIZE(i), 1);
 204                 OUT_RING(chan, s->width << 16 | s->height);
 205
 206                 tx_format |= get_tex_format_rect(ti);
 207         } else {
 208                 tx_format |= get_tex_format_pot(ti);
 209         }
 210
 211         if (t->MinFilter != GL_NEAREST &&
 212             t->MinFilter != GL_LINEAR) {
 213                 int lod_min = t->MinLod;
 214                 int lod_max = MIN2(t->MaxLod, t->_MaxLambda);
 215                 int lod_bias = t->LodBias
 216                         + ctx->Texture.Unit[i].LodBias;
 217
 218                 lod_max = CLAMP(lod_max, 0, 15);
 219                 lod_min = CLAMP(lod_min, 0, 15);
 220                 lod_bias = CLAMP(lod_bias, 0, 15);
 221
 222                 tx_format |= NV20_3D_TEX_FORMAT_MIPMAP;
 223                 tx_filter |= lod_bias << 8;
 224                 tx_enable |= lod_min << 26
 225                         | lod_max << 14;
 226         }
 227
 228         /* Write it to the hardware. */
 229         nouveau_bo_mark(bctx, kelvin, NV20_3D_TEX_FORMAT(i),
 230                         s->bo, tx_format, 0,
 231                         NV20_3D_TEX_FORMAT_DMA0,
 232                         NV20_3D_TEX_FORMAT_DMA1,
 233                         bo_flags | NOUVEAU_BO_OR);
 234
 235         nouveau_bo_markl(bctx, kelvin, NV20_3D_TEX_OFFSET(i),
 236                          s->bo, s->offset, bo_flags);
 237
 238         BEGIN_RING(chan, kelvin, NV20_3D_TEX_WRAP(i), 1);
 239         OUT_RING(chan, tx_wrap);
 240
 241         BEGIN_RING(chan, kelvin, NV20_3D_TEX_FILTER(i), 1);
 242         OUT_RING(chan, tx_filter);
 243
 244         BEGIN_RING(chan, kelvin, NV20_3D_TEX_ENABLE(i), 1);
 245         OUT_RING(chan, tx_enable);
 246
 247         context_dirty(ctx, TEX_SHADER);
 248 }
 249
 250 void
 251 nv20_emit_tex_shader(struct gl_context *ctx, int emit)
 252 {
 253         struct nouveau_channel *chan = context_chan(ctx);
 254         struct nouveau_grobj *kelvin = context_eng3d(ctx);
 255         uint32_t tx_shader_op = 0;
 256         int i;
 257
 258         for (i = 0; i < NV20_TEXTURE_UNITS; i++) {
 259                 if (!ctx->Texture.Unit[i]._ReallyEnabled)
 260                         continue;
 261
 262                 tx_shader_op |= NV20_3D_TEX_SHADER_OP_TX0_TEXTURE_2D << 5 * i;
 263         }
 264
 265         BEGIN_RING(chan, kelvin, NV20_3D_TEX_SHADER_OP, 1);
 266         OUT_RING(chan, tx_shader_op);
 267 }