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_fixedfunc_texture_unit *unit =
  43            &ctx->Texture.FixedFuncUnit[i];
  44         int j;
  45
  46         for (j = 0; j < 4; j++) {
  47                 if (nctx->fallback == HWTNL && (unit->TexGenEnabled & 1 << j)) {
  48                         struct gl_texgen *coord = get_texgen_coord(unit, j);
  49                         float *k = get_texgen_coeff(coord);
  50
  51                         if (k) {
  52                                 BEGIN_NV04(push, NV20_3D(TEX_GEN_COEFF(i, j)), 4);
  53                                 PUSH_DATAp(push, k, 4);
  54                         }
  55
  56                         BEGIN_NV04(push, NV20_3D(TEX_GEN_MODE(i, j)), 1);
  57                         PUSH_DATA (push, nvgl_texgen_mode(coord->Mode));
  58
  59                 } else {
  60                         BEGIN_NV04(push, NV20_3D(TEX_GEN_MODE(i, j)), 1);
  61                         PUSH_DATA (push, 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_pushbuf *push = context_push(ctx);
  72
  73         if (nctx->fallback == HWTNL &&
  74             (ctx->Texture._TexMatEnabled & 1 << i)) {
  75                 BEGIN_NV04(push, NV20_3D(TEX_MATRIX_ENABLE(i)), 1);
  76                 PUSH_DATA (push, 1);
  77
  78                 BEGIN_NV04(push, NV20_3D(TEX_MATRIX(i,0)), 16);
  79                 PUSH_DATAm(push, ctx->TextureMatrixStack[i].Top->m);
  80
  81         } else {
  82                 BEGIN_NV04(push, NV20_3D(TEX_MATRIX_ENABLE(i)), 1);
  83                 PUSH_DATA (push, 0);
  84         }
  85 }
  86
  87 static uint32_t
  88 get_tex_format_pot(struct gl_texture_image *ti)
  89 {
  90         switch (ti->TexFormat) {
  91         case MESA_FORMAT_B8G8R8A8_UNORM:
  92                 return NV20_3D_TEX_FORMAT_FORMAT_A8R8G8B8;
  93
  94         case MESA_FORMAT_B5G5R5A1_UNORM:
  95                 return NV20_3D_TEX_FORMAT_FORMAT_A1R5G5B5;
  96
  97         case MESA_FORMAT_B4G4R4A4_UNORM:
  98                 return NV20_3D_TEX_FORMAT_FORMAT_A4R4G4B4;
  99
 100         case MESA_FORMAT_B8G8R8X8_UNORM:
 101                 return NV20_3D_TEX_FORMAT_FORMAT_X8R8G8B8;
 102
 103         case MESA_FORMAT_B5G6R5_UNORM:
 104                 return NV20_3D_TEX_FORMAT_FORMAT_R5G6B5;
 105
 106         case MESA_FORMAT_A_UNORM8:
 107         case MESA_FORMAT_I_UNORM8:
 108                 return NV20_3D_TEX_FORMAT_FORMAT_I8;
 109
 110         case MESA_FORMAT_L_UNORM8:
 111                 return NV20_3D_TEX_FORMAT_FORMAT_L8;
 112
 113         case MESA_FORMAT_RGB_DXT1:
 114         case MESA_FORMAT_RGBA_DXT1:
 115                 return NV20_3D_TEX_FORMAT_FORMAT_DXT1;
 116
 117         case MESA_FORMAT_RGBA_DXT3:
 118                 return NV20_3D_TEX_FORMAT_FORMAT_DXT3;
 119
 120         case MESA_FORMAT_RGBA_DXT5:
 121                 return NV20_3D_TEX_FORMAT_FORMAT_DXT5;
 122
 123         default:
 124                 assert(0);
 125         }
 126 }
 127
 128 static uint32_t
 129 get_tex_format_rect(struct gl_texture_image *ti)
 130 {
 131         switch (ti->TexFormat) {
 132         case MESA_FORMAT_B8G8R8A8_UNORM:
 133                 return NV20_3D_TEX_FORMAT_FORMAT_A8R8G8B8_RECT;
 134
 135         case MESA_FORMAT_B5G5R5A1_UNORM:
 136                 return NV20_3D_TEX_FORMAT_FORMAT_A1R5G5B5_RECT;
 137
 138         case MESA_FORMAT_B4G4R4A4_UNORM:
 139                 return NV20_3D_TEX_FORMAT_FORMAT_A4R4G4B4_RECT;
 140
 141         case MESA_FORMAT_B8G8R8X8_UNORM:
 142                 return NV20_3D_TEX_FORMAT_FORMAT_R8G8B8_RECT;
 143
 144         case MESA_FORMAT_B5G6R5_UNORM:
 145                 return NV20_3D_TEX_FORMAT_FORMAT_R5G6B5_RECT;
 146
 147         case MESA_FORMAT_L_UNORM8:
 148                 return NV20_3D_TEX_FORMAT_FORMAT_L8_RECT;
 149
 150         case MESA_FORMAT_A_UNORM8:
 151         case MESA_FORMAT_I_UNORM8:
 152                 return NV20_3D_TEX_FORMAT_FORMAT_I8_RECT;
 153
 154         default:
 155                 assert(0);
 156         }
 157 }
 158
 159 void
 160 nv20_emit_tex_obj(struct gl_context *ctx, int emit)
 161 {
 162         const int i = emit - NOUVEAU_STATE_TEX_OBJ0;
 163         struct nouveau_pushbuf *push = context_push(ctx);
 164         const int bo_flags = NOUVEAU_BO_RD | NOUVEAU_BO_GART | NOUVEAU_BO_VRAM;
 165         struct gl_texture_object *t;
 166         struct nouveau_surface *s;
 167         struct gl_texture_image *ti;
 168         const struct gl_sampler_object *sa;
 169         uint8_t r, g, b, a;
 170         uint32_t tx_format, tx_filter, tx_wrap, tx_bcolor, tx_enable;
 171
 172         PUSH_RESET(push, BUFCTX_TEX(i));
 173
 174         if (!ctx->Texture.Unit[i]._Current) {
 175                 BEGIN_NV04(push, NV20_3D(TEX_ENABLE(i)), 1);
 176                 PUSH_DATA (push, 0);
 177
 178                 context_dirty(ctx, TEX_SHADER);
 179                 return;
 180         }
 181
 182         t = ctx->Texture.Unit[i]._Current;
 183         s = &to_nouveau_texture(t)->surfaces[t->BaseLevel];
 184         ti = t->Image[0][t->BaseLevel];
 185         sa = _mesa_get_samplerobj(ctx, i);
 186
 187         if (!nouveau_texture_validate(ctx, t))
 188                 return;
 189
 190         /* Recompute the texturing registers. */
 191         tx_format = ti->DepthLog2 << 28
 192                 | ti->HeightLog2 << 24
 193                 | ti->WidthLog2 << 20
 194                 | NV20_3D_TEX_FORMAT_DIMS_2D
 195                 | NV20_3D_TEX_FORMAT_NO_BORDER
 196                 | 1 << 16;
 197
 198         switch (t->Target) {
 199         case GL_TEXTURE_1D:
 200                 tx_wrap = NV20_3D_TEX_WRAP_R_CLAMP_TO_EDGE
 201                         | NV20_3D_TEX_WRAP_T_CLAMP_TO_EDGE
 202                         | nvgl_wrap_mode_nv20(sa->WrapS) << 0;
 203                 break;
 204
 205         default:
 206                 tx_wrap = nvgl_wrap_mode_nv20(sa->WrapR) << 16
 207                         | nvgl_wrap_mode_nv20(sa->WrapT) << 8
 208                         | nvgl_wrap_mode_nv20(sa->WrapS) << 0;
 209                 break;
 210         }
 211
 212         tx_filter = nvgl_filter_mode(sa->MagFilter) << 24
 213                 | nvgl_filter_mode(sa->MinFilter) << 16
 214                 | 2 << 12;
 215
 216         r = FLOAT_TO_UBYTE(sa->BorderColor.f[0]);
 217         g = FLOAT_TO_UBYTE(sa->BorderColor.f[1]);
 218         b = FLOAT_TO_UBYTE(sa->BorderColor.f[2]);
 219         a = FLOAT_TO_UBYTE(sa->BorderColor.f[3]);
 220         switch (ti->_BaseFormat) {
 221         case GL_LUMINANCE:
 222                 a = 0xff;
 223                 /* fallthrough */
 224         case GL_LUMINANCE_ALPHA:
 225                 g = b = r;
 226                 break;
 227         case GL_RGB:
 228                 a = 0xff;
 229                 break;
 230         case GL_INTENSITY:
 231                 g = b = a = r;
 232                 break;
 233         case GL_ALPHA:
 234                 r = g = b = 0;
 235                 break;
 236         }
 237         tx_bcolor = b << 0 | g << 8 | r << 16 | a << 24;
 238
 239         tx_enable = NV20_3D_TEX_ENABLE_ENABLE
 240                 | log2i(sa->MaxAnisotropy) << 4;
 241
 242         if (t->Target == GL_TEXTURE_RECTANGLE) {
 243                 BEGIN_NV04(push, NV20_3D(TEX_NPOT_PITCH(i)), 1);
 244                 PUSH_DATA (push, s->pitch << 16);
 245                 BEGIN_NV04(push, NV20_3D(TEX_NPOT_SIZE(i)), 1);
 246                 PUSH_DATA (push, s->width << 16 | s->height);
 247
 248                 tx_format |= get_tex_format_rect(ti);
 249         } else {
 250                 tx_format |= get_tex_format_pot(ti);
 251         }
 252
 253         if (sa->MinFilter != GL_NEAREST &&
 254             sa->MinFilter != GL_LINEAR) {
 255                 int lod_min = sa->MinLod;
 256                 int lod_max = MIN2(sa->MaxLod, t->_MaxLambda);
 257                 int lod_bias = sa->LodBias
 258                         + ctx->Texture.Unit[i].LodBias;
 259
 260                 lod_max = CLAMP(lod_max, 0, 15);
 261                 lod_min = CLAMP(lod_min, 0, 15);
 262                 lod_bias = CLAMP(lod_bias, 0, 15);
 263
 264                 tx_format |= NV20_3D_TEX_FORMAT_MIPMAP;
 265                 tx_filter |= lod_bias << 8;
 266                 tx_enable |= lod_min << 26
 267                         | lod_max << 14;
 268         }
 269
 270         /* Write it to the hardware. */
 271         BEGIN_NV04(push, NV20_3D(TEX_FORMAT(i)), 1);
 272         PUSH_MTHD (push, NV20_3D(TEX_FORMAT(i)), BUFCTX_TEX(i),
 273                          s->bo, tx_format, bo_flags | NOUVEAU_BO_OR,
 274                          NV20_3D_TEX_FORMAT_DMA0,
 275                          NV20_3D_TEX_FORMAT_DMA1);
 276
 277         BEGIN_NV04(push, NV20_3D(TEX_OFFSET(i)), 1);
 278         PUSH_MTHDl(push, NV20_3D(TEX_OFFSET(i)), BUFCTX_TEX(i),
 279                          s->bo, s->offset, bo_flags);
 280
 281         BEGIN_NV04(push, NV20_3D(TEX_WRAP(i)), 1);
 282         PUSH_DATA (push, tx_wrap);
 283
 284         BEGIN_NV04(push, NV20_3D(TEX_FILTER(i)), 1);
 285         PUSH_DATA (push, tx_filter);
 286
 287         BEGIN_NV04(push, NV20_3D(TEX_BORDER_COLOR(i)), 1);
 288         PUSH_DATA (push, tx_bcolor);
 289
 290         BEGIN_NV04(push, NV20_3D(TEX_ENABLE(i)), 1);
 291         PUSH_DATA (push, tx_enable);
 292
 293         context_dirty(ctx, TEX_SHADER);
 294 }
 295
 296 void
 297 nv20_emit_tex_shader(struct gl_context *ctx, int emit)
 298 {
 299         struct nouveau_pushbuf *push = context_push(ctx);
 300         uint32_t tx_shader_op = 0;
 301         int i;
 302
 303         for (i = 0; i < NV20_TEXTURE_UNITS; i++) {
 304                 if (!ctx->Texture.Unit[i]._Current)
 305                         continue;
 306
 307                 tx_shader_op |= NV20_3D_TEX_SHADER_OP_TX0_TEXTURE_2D << 5 * i;
 308         }
 309
 310         BEGIN_NV04(push, NV20_3D(TEX_SHADER_OP), 1);
 311         PUSH_DATA (push, tx_shader_op);
 312 }