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 #include "main/samplerobj.h"
  35
  36 void
  37 nv20_emit_tex_gen(struct gl_context *ctx, int emit)
  38 {
  39         const int i = emit - NOUVEAU_STATE_TEX_GEN0;
  40         struct nouveau_context *nctx = to_nouveau_context(ctx);
  41         struct nouveau_pushbuf *push = context_push(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_NV04(push, NV20_3D(TEX_GEN_COEFF(i, j)), 4);
  52                                 PUSH_DATAp(push, k, 4);
  53                         }
  54
  55                         BEGIN_NV04(push, NV20_3D(TEX_GEN_MODE(i, j)), 1);
  56                         PUSH_DATA (push, nvgl_texgen_mode(coord->Mode));
  57
  58                 } else {
  59                         BEGIN_NV04(push, NV20_3D(TEX_GEN_MODE(i, j)), 1);
  60                         PUSH_DATA (push, 0);
  61                 }
  62         }
  63 }
  64
  65 void
  66 nv20_emit_tex_mat(struct gl_context *ctx, int emit)
  67 {
  68         const int i = emit - NOUVEAU_STATE_TEX_MAT0;
  69         struct nouveau_context *nctx = to_nouveau_context(ctx);
  70         struct nouveau_pushbuf *push = context_push(ctx);
  71
  72         if (nctx->fallback == HWTNL &&
  73             (ctx->Texture._TexMatEnabled & 1 << i)) {
  74                 BEGIN_NV04(push, NV20_3D(TEX_MATRIX_ENABLE(i)), 1);
  75                 PUSH_DATA (push, 1);
  76
  77                 BEGIN_NV04(push, NV20_3D(TEX_MATRIX(i,0)), 16);
  78                 PUSH_DATAm(push, ctx->TextureMatrixStack[i].Top->m);
  79
  80         } else {
  81                 BEGIN_NV04(push, NV20_3D(TEX_MATRIX_ENABLE(i)), 1);
  82                 PUSH_DATA (push, 0);
  83         }
  84 }
  85
  86 static uint32_t
  87 get_tex_format_pot(struct gl_texture_image *ti)
  88 {
  89         switch (ti->TexFormat) {
  90         case MESA_FORMAT_B8G8R8A8_UNORM:
  91                 return NV20_3D_TEX_FORMAT_FORMAT_A8R8G8B8;
  92
  93         case MESA_FORMAT_B5G5R5A1_UNORM:
  94                 return NV20_3D_TEX_FORMAT_FORMAT_A1R5G5B5;
  95
  96         case MESA_FORMAT_B4G4R4A4_UNORM:
  97                 return NV20_3D_TEX_FORMAT_FORMAT_A4R4G4B4;
  98
  99         case MESA_FORMAT_B8G8R8X8_UNORM:
 100                 return NV20_3D_TEX_FORMAT_FORMAT_X8R8G8B8;
 101
 102         case MESA_FORMAT_B5G6R5_UNORM:
 103                 return NV20_3D_TEX_FORMAT_FORMAT_R5G6B5;
 104
 105         case MESA_FORMAT_A_UNORM8:
 106         case MESA_FORMAT_I_UNORM8:
 107                 return NV20_3D_TEX_FORMAT_FORMAT_I8;
 108
 109         case MESA_FORMAT_L_UNORM8:
 110                 return NV20_3D_TEX_FORMAT_FORMAT_L8;
 111
 112         case MESA_FORMAT_RGB_DXT1:
 113         case MESA_FORMAT_RGBA_DXT1:
 114                 return NV20_3D_TEX_FORMAT_FORMAT_DXT1;
 115
 116         case MESA_FORMAT_RGBA_DXT3:
 117                 return NV20_3D_TEX_FORMAT_FORMAT_DXT3;
 118
 119         case MESA_FORMAT_RGBA_DXT5:
 120                 return NV20_3D_TEX_FORMAT_FORMAT_DXT5;
 121
 122         default:
 123                 assert(0);
 124         }
 125 }
 126
 127 static uint32_t
 128 get_tex_format_rect(struct gl_texture_image *ti)
 129 {
 130         switch (ti->TexFormat) {
 131         case MESA_FORMAT_B8G8R8A8_UNORM:
 132                 return NV20_3D_TEX_FORMAT_FORMAT_A8R8G8B8_RECT;
 133
 134         case MESA_FORMAT_B5G5R5A1_UNORM:
 135                 return NV20_3D_TEX_FORMAT_FORMAT_A1R5G5B5_RECT;
 136
 137         case MESA_FORMAT_B4G4R4A4_UNORM:
 138                 return NV20_3D_TEX_FORMAT_FORMAT_A4R4G4B4_RECT;
 139
 140         case MESA_FORMAT_B8G8R8X8_UNORM:
 141                 return NV20_3D_TEX_FORMAT_FORMAT_R8G8B8_RECT;
 142
 143         case MESA_FORMAT_B5G6R5_UNORM:
 144                 return NV20_3D_TEX_FORMAT_FORMAT_R5G6B5_RECT;
 145
 146         case MESA_FORMAT_L_UNORM8:
 147                 return NV20_3D_TEX_FORMAT_FORMAT_L8_RECT;
 148
 149         case MESA_FORMAT_A_UNORM8:
 150         case MESA_FORMAT_I_UNORM8:
 151                 return NV20_3D_TEX_FORMAT_FORMAT_I8_RECT;
 152
 153         default:
 154                 assert(0);
 155         }
 156 }
 157
 158 void
 159 nv20_emit_tex_obj(struct gl_context *ctx, int emit)
 160 {
 161         const int i = emit - NOUVEAU_STATE_TEX_OBJ0;
 162         struct nouveau_pushbuf *push = context_push(ctx);
 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         const struct gl_sampler_object *sa;
 168         uint32_t tx_format, tx_filter, tx_wrap, tx_enable;
 169
 170         PUSH_RESET(push, BUFCTX_TEX(i));
 171
 172         if (!ctx->Texture.Unit[i]._Current) {
 173                 BEGIN_NV04(push, NV20_3D(TEX_ENABLE(i)), 1);
 174                 PUSH_DATA (push, 0);
 175
 176                 context_dirty(ctx, TEX_SHADER);
 177                 return;
 178         }
 179
 180         t = ctx->Texture.Unit[i]._Current;
 181         s = &to_nouveau_texture(t)->surfaces[t->BaseLevel];
 182         ti = t->Image[0][t->BaseLevel];
 183         sa = _mesa_get_samplerobj(ctx, i);
 184
 185         if (!nouveau_texture_validate(ctx, t))
 186                 return;
 187
 188         /* Recompute the texturing registers. */
 189         tx_format = ti->DepthLog2 << 28
 190                 | ti->HeightLog2 << 24
 191                 | ti->WidthLog2 << 20
 192                 | NV20_3D_TEX_FORMAT_DIMS_2D
 193                 | NV20_3D_TEX_FORMAT_NO_BORDER
 194                 | 1 << 16;
 195
 196         switch (t->Target) {
 197         case GL_TEXTURE_1D:
 198                 tx_wrap = NV20_3D_TEX_WRAP_R_CLAMP_TO_EDGE
 199                         | NV20_3D_TEX_WRAP_T_CLAMP_TO_EDGE
 200                         | nvgl_wrap_mode_nv20(sa->WrapS) << 0;
 201                 break;
 202
 203         default:
 204                 tx_wrap = nvgl_wrap_mode_nv20(sa->WrapR) << 16
 205                         | nvgl_wrap_mode_nv20(sa->WrapT) << 8
 206                         | nvgl_wrap_mode_nv20(sa->WrapS) << 0;
 207                 break;
 208         }
 209
 210         tx_filter = nvgl_filter_mode(sa->MagFilter) << 24
 211                 | nvgl_filter_mode(sa->MinFilter) << 16
 212                 | 2 << 12;
 213
 214         tx_enable = NV20_3D_TEX_ENABLE_ENABLE
 215                 | log2i(sa->MaxAnisotropy) << 4;
 216
 217         if (t->Target == GL_TEXTURE_RECTANGLE) {
 218                 BEGIN_NV04(push, NV20_3D(TEX_NPOT_PITCH(i)), 1);
 219                 PUSH_DATA (push, s->pitch << 16);
 220                 BEGIN_NV04(push, NV20_3D(TEX_NPOT_SIZE(i)), 1);
 221                 PUSH_DATA (push, s->width << 16 | s->height);
 222
 223                 tx_format |= get_tex_format_rect(ti);
 224         } else {
 225                 tx_format |= get_tex_format_pot(ti);
 226         }
 227
 228         if (sa->MinFilter != GL_NEAREST &&
 229             sa->MinFilter != GL_LINEAR) {
 230                 int lod_min = sa->MinLod;
 231                 int lod_max = MIN2(sa->MaxLod, t->_MaxLambda);
 232                 int lod_bias = sa->LodBias
 233                         + ctx->Texture.Unit[i].LodBias;
 234
 235                 lod_max = CLAMP(lod_max, 0, 15);
 236                 lod_min = CLAMP(lod_min, 0, 15);
 237                 lod_bias = CLAMP(lod_bias, 0, 15);
 238
 239                 tx_format |= NV20_3D_TEX_FORMAT_MIPMAP;
 240                 tx_filter |= lod_bias << 8;
 241                 tx_enable |= lod_min << 26
 242                         | lod_max << 14;
 243         }
 244
 245         /* Write it to the hardware. */
 246         BEGIN_NV04(push, NV20_3D(TEX_FORMAT(i)), 1);
 247         PUSH_MTHD (push, NV20_3D(TEX_FORMAT(i)), BUFCTX_TEX(i),
 248                          s->bo, tx_format, bo_flags | NOUVEAU_BO_OR,
 249                          NV20_3D_TEX_FORMAT_DMA0,
 250                          NV20_3D_TEX_FORMAT_DMA1);
 251
 252         BEGIN_NV04(push, NV20_3D(TEX_OFFSET(i)), 1);
 253         PUSH_MTHDl(push, NV20_3D(TEX_OFFSET(i)), BUFCTX_TEX(i),
 254                          s->bo, s->offset, bo_flags);
 255
 256         BEGIN_NV04(push, NV20_3D(TEX_WRAP(i)), 1);
 257         PUSH_DATA (push, tx_wrap);
 258
 259         BEGIN_NV04(push, NV20_3D(TEX_FILTER(i)), 1);
 260         PUSH_DATA (push, tx_filter);
 261
 262         BEGIN_NV04(push, NV20_3D(TEX_ENABLE(i)), 1);
 263         PUSH_DATA (push, tx_enable);
 264
 265         context_dirty(ctx, TEX_SHADER);
 266 }
 267
 268 void
 269 nv20_emit_tex_shader(struct gl_context *ctx, int emit)
 270 {
 271         struct nouveau_pushbuf *push = context_push(ctx);
 272         uint32_t tx_shader_op = 0;
 273         int i;
 274
 275         for (i = 0; i < NV20_TEXTURE_UNITS; i++) {
 276                 if (!ctx->Texture.Unit[i]._Current)
 277                         continue;
 278
 279                 tx_shader_op |= NV20_3D_TEX_SHADER_OP_TX0_TEXTURE_2D << 5 * i;
 280         }
 281
 282         BEGIN_NV04(push, NV20_3D(TEX_SHADER_OP), 1);
 283         PUSH_DATA (push, tx_shader_op);
 284 }