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 #define TX_GEN_MODE(i, j) (NV20TCL_TX_GEN_MODE_S(i) + 4 * (j))
  36 #define TX_GEN_COEFF(i, j) (NV20TCL_TX_GEN_COEFF_S_A(i) + 16 * (j))
  37 #define TX_MATRIX(i) (NV20TCL_TX0_MATRIX(0) + 64 * (i))
  38
  39 void
  40 nv20_emit_tex_gen(GLcontext *ctx, int emit)
  41 {
  42         const int i = emit - NOUVEAU_STATE_TEX_GEN0;
  43         struct nouveau_context *nctx = to_nouveau_context(ctx);
  44         struct nouveau_channel *chan = context_chan(ctx);
  45         struct nouveau_grobj *kelvin = context_eng3d(ctx);
  46         struct gl_texture_unit *unit = &ctx->Texture.Unit[i];
  47         int j;
  48
  49         for (j = 0; j < 4; j++) {
  50                 if (nctx->fallback == HWTNL && (unit->TexGenEnabled & 1 << j)) {
  51                         struct gl_texgen *coord = get_texgen_coord(unit, j);
  52                         float *k = get_texgen_coeff(coord);
  53
  54                         if (k) {
  55                                 BEGIN_RING(chan, kelvin, TX_GEN_COEFF(i, j), 4);
  56                                 OUT_RINGp(chan, k, 4);
  57                         }
  58
  59                         BEGIN_RING(chan, kelvin, TX_GEN_MODE(i, j), 1);
  60                         OUT_RING(chan, nvgl_texgen_mode(coord->Mode));
  61
  62                 } else {
  63                         BEGIN_RING(chan, kelvin, TX_GEN_MODE(i, j), 1);
  64                         OUT_RING(chan, 0);
  65                 }
  66         }
  67 }
  68
  69 void
  70 nv20_emit_tex_mat(GLcontext *ctx, int emit)
  71 {
  72         const int i = emit - NOUVEAU_STATE_TEX_MAT0;
  73         struct nouveau_context *nctx = to_nouveau_context(ctx);
  74         struct nouveau_channel *chan = context_chan(ctx);
  75         struct nouveau_grobj *kelvin = context_eng3d(ctx);
  76
  77         if (nctx->fallback == HWTNL &&
  78             (ctx->Texture._TexMatEnabled & 1 << i)) {
  79                 BEGIN_RING(chan, kelvin, NV20TCL_TX_MATRIX_ENABLE(i), 1);
  80                 OUT_RING(chan, 1);
  81
  82                 BEGIN_RING(chan, kelvin, TX_MATRIX(i), 16);
  83                 OUT_RINGm(chan, ctx->TextureMatrixStack[i].Top->m);
  84
  85         } else {
  86                 BEGIN_RING(chan, kelvin, NV20TCL_TX_MATRIX_ENABLE(i), 1);
  87                 OUT_RING(chan, 0);
  88         }
  89 }
  90
  91 static uint32_t
  92 get_tex_format_pot(struct gl_texture_image *ti)
  93 {
  94         switch (ti->TexFormat) {
  95         case MESA_FORMAT_ARGB8888:
  96                 return NV20TCL_TX_FORMAT_FORMAT_A8R8G8B8;
  97
  98         case MESA_FORMAT_ARGB1555:
  99                 return NV20TCL_TX_FORMAT_FORMAT_A1R5G5B5;
 100
 101         case MESA_FORMAT_ARGB4444:
 102                 return NV20TCL_TX_FORMAT_FORMAT_A4R4G4B4;
 103
 104         case MESA_FORMAT_XRGB8888:
 105                 return NV20TCL_TX_FORMAT_FORMAT_X8R8G8B8;
 106
 107         case MESA_FORMAT_RGB565:
 108                 return NV20TCL_TX_FORMAT_FORMAT_R5G6B5;
 109
 110         case MESA_FORMAT_A8:
 111         case MESA_FORMAT_I8:
 112                 return NV20TCL_TX_FORMAT_FORMAT_A8;
 113
 114         case MESA_FORMAT_L8:
 115                 return NV20TCL_TX_FORMAT_FORMAT_L8;
 116
 117         case MESA_FORMAT_CI8:
 118                 return NV20TCL_TX_FORMAT_FORMAT_INDEX8;
 119
 120         default:
 121                 assert(0);
 122         }
 123 }
 124
 125 static uint32_t
 126 get_tex_format_rect(struct gl_texture_image *ti)
 127 {
 128         switch (ti->TexFormat) {
 129         case MESA_FORMAT_ARGB8888:
 130                 return NV20TCL_TX_FORMAT_FORMAT_A8R8G8B8_RECT;
 131
 132         case MESA_FORMAT_ARGB1555:
 133                 return NV20TCL_TX_FORMAT_FORMAT_A1R5G5B5_RECT;
 134
 135         case MESA_FORMAT_ARGB4444:
 136                 return NV20TCL_TX_FORMAT_FORMAT_A4R4G4B4_RECT;
 137
 138         case MESA_FORMAT_XRGB8888:
 139                 return NV20TCL_TX_FORMAT_FORMAT_R8G8B8_RECT;
 140
 141         case MESA_FORMAT_RGB565:
 142                 return NV20TCL_TX_FORMAT_FORMAT_R5G6B5_RECT;
 143
 144         case MESA_FORMAT_L8:
 145                 return NV20TCL_TX_FORMAT_FORMAT_L8_RECT;
 146
 147         case MESA_FORMAT_A8:
 148         case MESA_FORMAT_I8:
 149                 return NV20TCL_TX_FORMAT_FORMAT_A8_RECT;
 150
 151         default:
 152                 assert(0);
 153         }
 154 }
 155
 156 void
 157 nv20_emit_tex_obj(GLcontext *ctx, int emit)
 158 {
 159         const int i = emit - NOUVEAU_STATE_TEX_OBJ0;
 160         struct nouveau_channel *chan = context_chan(ctx);
 161         struct nouveau_grobj *kelvin = context_eng3d(ctx);
 162         struct nouveau_bo_context *bctx = context_bctx_i(ctx, TEXTURE, i);
 163         const int bo_flags = NOUVEAU_BO_RD | NOUVEAU_BO_GART | NOUVEAU_BO_VRAM;
 164         struct gl_texture_object *t;
 165         struct nouveau_surface *s;
 166         struct gl_texture_image *ti;
 167         uint32_t tx_format, tx_filter, tx_wrap, tx_enable;
 168
 169         if (!ctx->Texture.Unit[i]._ReallyEnabled) {
 170                 BEGIN_RING(chan, kelvin, NV20TCL_TX_ENABLE(i), 1);
 171                 OUT_RING(chan, 0);
 172
 173                 context_dirty(ctx, TEX_SHADER);
 174                 return;
 175         }
 176
 177         t = ctx->Texture.Unit[i]._Current;
 178         s = &to_nouveau_texture(t)->surfaces[t->BaseLevel];
 179         ti = t->Image[0][t->BaseLevel];
 180
 181         if (!nouveau_texture_validate(ctx, t))
 182                 return;
 183
 184         /* Recompute the texturing registers. */
 185         tx_format = ti->DepthLog2 << 28
 186                 | ti->HeightLog2 << 24
 187                 | ti->WidthLog2 << 20
 188                 | NV20TCL_TX_FORMAT_DIMS_2D
 189                 | NV20TCL_TX_FORMAT_NO_BORDER
 190                 | 1 << 16;
 191
 192         tx_wrap = nvgl_wrap_mode(t->WrapR) << 16
 193                 | nvgl_wrap_mode(t->WrapT) << 8
 194                 | nvgl_wrap_mode(t->WrapS) << 0;
 195
 196         tx_filter = nvgl_filter_mode(t->MagFilter) << 24
 197                 | nvgl_filter_mode(t->MinFilter) << 16;
 198
 199         tx_enable = NV20TCL_TX_ENABLE_ENABLE
 200                 | log2i(t->MaxAnisotropy) << 4;
 201
 202         if (t->Target == GL_TEXTURE_RECTANGLE) {
 203                 BEGIN_RING(chan, kelvin, NV20TCL_TX_NPOT_PITCH(i), 1);
 204                 OUT_RING(chan, s->pitch << 16);
 205                 BEGIN_RING(chan, kelvin, NV20TCL_TX_NPOT_SIZE(i), 1);
 206                 OUT_RING(chan, s->width << 16 | s->height);
 207
 208                 tx_format |= get_tex_format_rect(ti);
 209         } else {
 210                 tx_format |= get_tex_format_pot(ti);
 211         }
 212
 213         if (t->MinFilter != GL_NEAREST &&
 214             t->MinFilter != GL_LINEAR) {
 215                 int lod_min = t->MinLod;
 216                 int lod_max = MIN2(t->MaxLod, t->_MaxLambda);
 217                 int lod_bias = t->LodBias
 218                         + ctx->Texture.Unit[i].LodBias;
 219
 220                 lod_max = CLAMP(lod_max, 0, 15);
 221                 lod_min = CLAMP(lod_min, 0, 15);
 222                 lod_bias = CLAMP(lod_bias, 0, 15);
 223
 224                 tx_format |= NV20TCL_TX_FORMAT_MIPMAP;
 225                 tx_filter |= lod_bias << 8;
 226                 tx_enable |= lod_min << 26
 227                         | lod_max << 14;
 228         }
 229
 230         /* Write it to the hardware. */
 231         nouveau_bo_mark(bctx, kelvin, NV20TCL_TX_FORMAT(i),
 232                         s->bo, tx_format, 0,
 233                         NV20TCL_TX_FORMAT_DMA0,
 234                         NV20TCL_TX_FORMAT_DMA1,
 235                         bo_flags | NOUVEAU_BO_OR);
 236
 237         nouveau_bo_markl(bctx, kelvin, NV20TCL_TX_OFFSET(i),
 238                          s->bo, 0, bo_flags);
 239
 240         BEGIN_RING(chan, kelvin, NV20TCL_TX_WRAP(i), 1);
 241         OUT_RING(chan, tx_wrap);
 242
 243         BEGIN_RING(chan, kelvin, NV20TCL_TX_FILTER(i), 1);
 244         OUT_RING(chan, tx_filter);
 245
 246         BEGIN_RING(chan, kelvin, NV20TCL_TX_ENABLE(i), 1);
 247         OUT_RING(chan, tx_enable);
 248
 249         context_dirty(ctx, TEX_SHADER);
 250 }
 251
 252 void
 253 nv20_emit_tex_shader(GLcontext *ctx, int emit)
 254 {
 255         struct nouveau_channel *chan = context_chan(ctx);
 256         struct nouveau_grobj *kelvin = context_eng3d(ctx);
 257         uint32_t tx_shader_op = 0;
 258         int i;
 259
 260         for (i = 0; i < NV20_TEXTURE_UNITS; i++) {
 261                 if (!ctx->Texture.Unit[i]._ReallyEnabled)
 262                         continue;
 263
 264                 tx_shader_op |= NV20TCL_TX_SHADER_OP_TX0_TEXTURE_2D << 5 * i;
 265         }
 266
 267         BEGIN_RING(chan, kelvin, NV20TCL_TX_SHADER_OP, 1);
 268         OUT_RING(chan, tx_shader_op);
 269 }