src/mesa/drivers/dri/nouveau/nv20_state_tnl.c

   1 /*
   2  * Copyright (C) 2009-2010 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_util.h"
  31 #include "nouveau_class.h"
  32 #include "nv10_driver.h"
  33 #include "nv20_driver.h"
  34
  35 void
  36 nv20_emit_clip_plane(GLcontext *ctx, int emit)
  37 {
  38 }
  39
  40 static inline unsigned
  41 get_material_bitmask(unsigned m)
  42 {
  43         unsigned ret = 0;
  44
  45         if (m & MAT_BIT_FRONT_EMISSION)
  46                 ret |= NV20TCL_COLOR_MATERIAL_FRONT_EMISSION_COL1;
  47         if (m & MAT_BIT_FRONT_AMBIENT)
  48                 ret |= NV20TCL_COLOR_MATERIAL_FRONT_AMBIENT_COL1;
  49         if (m & MAT_BIT_FRONT_DIFFUSE)
  50                 ret |= NV20TCL_COLOR_MATERIAL_FRONT_DIFFUSE_COL1;
  51         if (m & MAT_BIT_FRONT_SPECULAR)
  52                 ret |= NV20TCL_COLOR_MATERIAL_FRONT_SPECULAR_COL1;
  53
  54         if (m & MAT_BIT_BACK_EMISSION)
  55                 ret |= NV20TCL_COLOR_MATERIAL_BACK_EMISSION_COL1;
  56         if (m & MAT_BIT_BACK_AMBIENT)
  57                 ret |= NV20TCL_COLOR_MATERIAL_BACK_AMBIENT_COL1;
  58         if (m & MAT_BIT_BACK_DIFFUSE)
  59                 ret |= NV20TCL_COLOR_MATERIAL_BACK_DIFFUSE_COL1;
  60         if (m & MAT_BIT_BACK_SPECULAR)
  61                 ret |= NV20TCL_COLOR_MATERIAL_BACK_SPECULAR_COL1;
  62
  63         return ret;
  64 }
  65
  66 void
  67 nv20_emit_color_material(GLcontext *ctx, int emit)
  68 {
  69         struct nouveau_channel *chan = context_chan(ctx);
  70         struct nouveau_grobj *kelvin = context_eng3d(ctx);
  71         unsigned mask = get_material_bitmask(ctx->Light.ColorMaterialBitmask);
  72
  73         BEGIN_RING(chan, kelvin, NV20TCL_COLOR_MATERIAL, 1);
  74         OUT_RING(chan, ctx->Light.ColorMaterialEnabled ? mask : 0);
  75 }
  76
  77 static unsigned
  78 get_fog_mode_signed(unsigned mode)
  79 {
  80         switch (mode) {
  81         case GL_LINEAR:
  82                 return NV20TCL_FOG_MODE_LINEAR_SIGNED;
  83         case GL_EXP:
  84                 return NV20TCL_FOG_MODE_EXP_SIGNED;
  85         case GL_EXP2:
  86                 return NV20TCL_FOG_MODE_EXP2_SIGNED;
  87         default:
  88                 assert(0);
  89         }
  90 }
  91
  92 static unsigned
  93 get_fog_mode_unsigned(unsigned mode)
  94 {
  95         switch (mode) {
  96         case GL_LINEAR:
  97                 return NV20TCL_FOG_MODE_LINEAR_UNSIGNED;
  98         case GL_EXP:
  99                 return NV20TCL_FOG_MODE_EXP_UNSIGNED;
 100         case GL_EXP2:
 101                 return NV20TCL_FOG_MODE_EXP2_UNSIGNED;
 102         default:
 103                 assert(0);
 104         }
 105 }
 106
 107 static unsigned
 108 get_fog_source(unsigned source)
 109 {
 110         switch (source) {
 111         case GL_FOG_COORDINATE_EXT:
 112                 return NV20TCL_FOG_COORD_FOG;
 113         case GL_FRAGMENT_DEPTH_EXT:
 114                 return NV20TCL_FOG_COORD_DIST_ORTHOGONAL_ABS;
 115         default:
 116                 assert(0);
 117         }
 118 }
 119
 120 void
 121 nv20_emit_fog(GLcontext *ctx, int emit)
 122 {
 123         struct nouveau_context *nctx = to_nouveau_context(ctx);
 124         struct nouveau_channel *chan = context_chan(ctx);
 125         struct nouveau_grobj *kelvin = context_eng3d(ctx);
 126         struct gl_fog_attrib *f = &ctx->Fog;
 127         unsigned source = nctx->fallback == HWTNL ?
 128                 f->FogCoordinateSource : GL_FOG_COORDINATE_EXT;
 129         float k[3];
 130
 131         nv10_get_fog_coeff(ctx, k);
 132
 133         BEGIN_RING(chan, kelvin, NV20TCL_FOG_MODE, 4);
 134         OUT_RING(chan, (source == GL_FOG_COORDINATE_EXT ?
 135                         get_fog_mode_signed(f->Mode) :
 136                         get_fog_mode_unsigned(f->Mode)));
 137         OUT_RING(chan, get_fog_source(source));
 138         OUT_RING(chan, f->Enabled ? 1 : 0);
 139         OUT_RING(chan, pack_rgba_f(MESA_FORMAT_RGBA8888_REV, f->Color));
 140
 141         BEGIN_RING(chan, kelvin, NV20TCL_FOG_EQUATION_CONSTANT, 3);
 142         OUT_RINGf(chan, k[0]);
 143         OUT_RINGf(chan, k[1]);
 144         OUT_RINGf(chan, k[2]);
 145 }
 146
 147 void
 148 nv20_emit_light_model(GLcontext *ctx, int emit)
 149 {
 150         struct nouveau_channel *chan = context_chan(ctx);
 151         struct nouveau_grobj *kelvin = context_eng3d(ctx);
 152         struct gl_lightmodel *m = &ctx->Light.Model;
 153
 154         BEGIN_RING(chan, kelvin, NV20TCL_SEPARATE_SPECULAR_ENABLE, 1);
 155         OUT_RING(chan, m->ColorControl == GL_SEPARATE_SPECULAR_COLOR ? 1 : 0);
 156
 157         BEGIN_RING(chan, kelvin, NV20TCL_LIGHT_MODEL, 1);
 158         OUT_RING(chan, ((m->LocalViewer ?
 159                          NV20TCL_LIGHT_MODEL_VIEWER_LOCAL :
 160                          NV20TCL_LIGHT_MODEL_VIEWER_NONLOCAL) |
 161                         (NEED_SECONDARY_COLOR(ctx) ?
 162                          NV20TCL_LIGHT_MODEL_SEPARATE_SPECULAR :
 163                          0)));
 164
 165         BEGIN_RING(chan, kelvin, NV20TCL_LIGHT_MODEL_TWO_SIDE_ENABLE, 1);
 166         OUT_RING(chan, ctx->Light.Model.TwoSide ? 1 : 0);
 167 }
 168
 169 void
 170 nv20_emit_light_source(GLcontext *ctx, int emit)
 171 {
 172         const int i = emit - NOUVEAU_STATE_LIGHT_SOURCE0;
 173         struct nouveau_channel *chan = context_chan(ctx);
 174         struct nouveau_grobj *kelvin = context_eng3d(ctx);
 175         struct gl_light *l = &ctx->Light.Light[i];
 176
 177         if (l->_Flags & LIGHT_POSITIONAL) {
 178                 BEGIN_RING(chan, kelvin, NV20TCL_LIGHT_POSITION_X(i), 3);
 179                 OUT_RINGf(chan, l->_Position[0]);
 180                 OUT_RINGf(chan, l->_Position[1]);
 181                 OUT_RINGf(chan, l->_Position[2]);
 182
 183                 BEGIN_RING(chan, kelvin, NV20TCL_LIGHT_ATTENUATION_CONSTANT(i), 3);
 184                 OUT_RINGf(chan, l->ConstantAttenuation);
 185                 OUT_RINGf(chan, l->LinearAttenuation);
 186                 OUT_RINGf(chan, l->QuadraticAttenuation);
 187
 188         } else {
 189                 BEGIN_RING(chan, kelvin, NV20TCL_LIGHT_DIRECTION_X(i), 3);
 190                 OUT_RINGf(chan, l->_VP_inf_norm[0]);
 191                 OUT_RINGf(chan, l->_VP_inf_norm[1]);
 192                 OUT_RINGf(chan, l->_VP_inf_norm[2]);
 193
 194                 BEGIN_RING(chan, kelvin, NV20TCL_LIGHT_HALF_VECTOR_X(i), 3);
 195                 OUT_RINGf(chan, l->_h_inf_norm[0]);
 196                 OUT_RINGf(chan, l->_h_inf_norm[1]);
 197                 OUT_RINGf(chan, l->_h_inf_norm[2]);
 198         }
 199
 200         if (l->_Flags & LIGHT_SPOT) {
 201                 float k[7];
 202
 203                 nv10_get_spot_coeff(l, k);
 204
 205                 BEGIN_RING(chan, kelvin, NV20TCL_LIGHT_SPOT_CUTOFF_A(i), 7);
 206                 OUT_RINGf(chan, k[0]);
 207                 OUT_RINGf(chan, k[1]);
 208                 OUT_RINGf(chan, k[2]);
 209                 OUT_RINGf(chan, k[3]);
 210                 OUT_RINGf(chan, k[4]);
 211                 OUT_RINGf(chan, k[5]);
 212                 OUT_RINGf(chan, k[6]);
 213         }
 214 }
 215
 216 #define USE_COLOR_MATERIAL(attr, side)                                  \
 217         (ctx->Light.ColorMaterialEnabled &&                             \
 218          ctx->Light.ColorMaterialBitmask & (1 << MAT_ATTRIB_##attr(side)))
 219
 220 void
 221 nv20_emit_material_ambient(GLcontext *ctx, int emit)
 222 {
 223         const int side = emit - NOUVEAU_STATE_MATERIAL_FRONT_AMBIENT;
 224         struct nouveau_channel *chan = context_chan(ctx);
 225         struct nouveau_grobj *kelvin = context_eng3d(ctx);
 226         float (*mat)[4] = ctx->Light.Material.Attrib;
 227         uint32_t m_scene[] = { NV20TCL_LIGHT_MODEL_FRONT_AMBIENT_R,
 228                                NV20TCL_LIGHT_MODEL_BACK_AMBIENT_R };
 229         uint32_t m_factor[] = { NV20TCL_MATERIAL_FACTOR_FRONT_R,
 230                               NV20TCL_MATERIAL_FACTOR_BACK_R };
 231         float c_scene[3], c_factor[3];
 232         struct gl_light *l;
 233
 234         if (USE_COLOR_MATERIAL(AMBIENT, side)) {
 235                 COPY_3V(c_scene, mat[MAT_ATTRIB_EMISSION(side)]);
 236                 COPY_3V(c_factor, ctx->Light.Model.Ambient);
 237
 238         } else if (USE_COLOR_MATERIAL(EMISSION, side)) {
 239                 SCALE_3V(c_scene, mat[MAT_ATTRIB_AMBIENT(side)],
 240                          ctx->Light.Model.Ambient);
 241                 ASSIGN_3V(c_factor, 1, 1, 1);
 242
 243         } else {
 244                 COPY_3V(c_scene, ctx->Light._BaseColor[side]);
 245                 ZERO_3V(c_factor);
 246         }
 247
 248         BEGIN_RING(chan, kelvin, m_scene[side], 3);
 249         OUT_RINGf(chan, c_scene[0]);
 250         OUT_RINGf(chan, c_scene[1]);
 251         OUT_RINGf(chan, c_scene[2]);
 252
 253         if (ctx->Light.ColorMaterialEnabled) {
 254                 BEGIN_RING(chan, kelvin, m_factor[side], 3);
 255                 OUT_RINGf(chan, c_factor[0]);
 256                 OUT_RINGf(chan, c_factor[1]);
 257                 OUT_RINGf(chan, c_factor[2]);
 258         }
 259
 260         foreach(l, &ctx->Light.EnabledList) {
 261                 const int i = l - ctx->Light.Light;
 262                 uint32_t m_light[] = { NV20TCL_LIGHT_FRONT_AMBIENT_R(i),
 263                                       NV20TCL_LIGHT_BACK_AMBIENT_R(i) };
 264                 float *c_light = (USE_COLOR_MATERIAL(AMBIENT, side) ?
 265                                   l->Ambient :
 266                                   l->_MatAmbient[side]);
 267
 268                 BEGIN_RING(chan, kelvin, m_light[side], 3);
 269                 OUT_RINGf(chan, c_light[0]);
 270                 OUT_RINGf(chan, c_light[1]);
 271                 OUT_RINGf(chan, c_light[2]);
 272         }
 273 }
 274
 275 void
 276 nv20_emit_material_diffuse(GLcontext *ctx, int emit)
 277 {
 278         const int side = emit - NOUVEAU_STATE_MATERIAL_FRONT_DIFFUSE;
 279         struct nouveau_channel *chan = context_chan(ctx);
 280         struct nouveau_grobj *kelvin = context_eng3d(ctx);
 281         GLfloat (*mat)[4] = ctx->Light.Material.Attrib;
 282         uint32_t m_factor[] = { NV20TCL_MATERIAL_FACTOR_FRONT_A,
 283                                 NV20TCL_MATERIAL_FACTOR_BACK_A };
 284         struct gl_light *l;
 285
 286         BEGIN_RING(chan, kelvin, m_factor[side], 1);
 287         OUT_RINGf(chan, mat[MAT_ATTRIB_DIFFUSE(side)][3]);
 288
 289         foreach(l, &ctx->Light.EnabledList) {
 290                 const int i = l - ctx->Light.Light;
 291                 uint32_t m_light[] = { NV20TCL_LIGHT_FRONT_DIFFUSE_R(i),
 292                                        NV20TCL_LIGHT_BACK_DIFFUSE_R(i) };
 293                 float *c_light = (USE_COLOR_MATERIAL(DIFFUSE, side) ?
 294                                   l->Diffuse :
 295                                   l->_MatDiffuse[side]);
 296
 297                 BEGIN_RING(chan, kelvin, m_light[side], 3);
 298                 OUT_RINGf(chan, c_light[0]);
 299                 OUT_RINGf(chan, c_light[1]);
 300                 OUT_RINGf(chan, c_light[2]);
 301         }
 302 }
 303
 304 void
 305 nv20_emit_material_specular(GLcontext *ctx, int emit)
 306 {
 307         const int side = emit - NOUVEAU_STATE_MATERIAL_FRONT_SPECULAR;
 308         struct nouveau_channel *chan = context_chan(ctx);
 309         struct nouveau_grobj *kelvin = context_eng3d(ctx);
 310         struct gl_light *l;
 311
 312         foreach(l, &ctx->Light.EnabledList) {
 313                 const int i = l - ctx->Light.Light;
 314                 uint32_t m_light[] = { NV20TCL_LIGHT_FRONT_SPECULAR_R(i),
 315                                        NV20TCL_LIGHT_BACK_SPECULAR_R(i) };
 316                 float *c_light = (USE_COLOR_MATERIAL(SPECULAR, side) ?
 317                                   l->Specular :
 318                                   l->_MatSpecular[side]);
 319
 320                 BEGIN_RING(chan, kelvin, m_light[side], 3);
 321                 OUT_RINGf(chan, c_light[0]);
 322                 OUT_RINGf(chan, c_light[1]);
 323                 OUT_RINGf(chan, c_light[2]);
 324         }
 325 }
 326
 327 void
 328 nv20_emit_material_shininess(GLcontext *ctx, int emit)
 329 {
 330         const int side = emit - NOUVEAU_STATE_MATERIAL_FRONT_SHININESS;
 331         struct nouveau_channel *chan = context_chan(ctx);
 332         struct nouveau_grobj *kelvin = context_eng3d(ctx);
 333         float (*mat)[4] = ctx->Light.Material.Attrib;
 334         uint32_t mthd[] = { NV20TCL_FRONT_MATERIAL_SHININESS(0),
 335                             NV20TCL_BACK_MATERIAL_SHININESS(0) };
 336         float k[6];
 337
 338         nv10_get_shininess_coeff(
 339                 CLAMP(mat[MAT_ATTRIB_SHININESS(side)][0], 0, 1024),
 340                 k);
 341
 342         BEGIN_RING(chan, kelvin, mthd[side], 6);
 343         OUT_RINGf(chan, k[0]);
 344         OUT_RINGf(chan, k[1]);
 345         OUT_RINGf(chan, k[2]);
 346         OUT_RINGf(chan, k[3]);
 347         OUT_RINGf(chan, k[4]);
 348         OUT_RINGf(chan, k[5]);
 349 }
 350
 351 void
 352 nv20_emit_modelview(GLcontext *ctx, int emit)
 353 {
 354         struct nouveau_context *nctx = to_nouveau_context(ctx);
 355         struct nouveau_channel *chan = context_chan(ctx);
 356         struct nouveau_grobj *kelvin = context_eng3d(ctx);
 357         GLmatrix *m = ctx->ModelviewMatrixStack.Top;
 358
 359         if (nctx->fallback != HWTNL)
 360                 return;
 361
 362         if (ctx->Light._NeedEyeCoords || ctx->Fog.Enabled) {
 363                 BEGIN_RING(chan, kelvin, NV20TCL_MODELVIEW0_MATRIX(0), 16);
 364                 OUT_RINGm(chan, m->m);
 365         }
 366
 367         if (ctx->Light.Enabled) {
 368                 int i, j;
 369
 370                 BEGIN_RING(chan, kelvin,
 371                            NV20TCL_INVERSE_MODELVIEW0_MATRIX(0), 12);
 372                 for (i = 0; i < 3; i++)
 373                         for (j = 0; j < 4; j++)
 374                                 OUT_RINGf(chan, m->inv[4*i + j]);
 375         }
 376 }
 377
 378 void
 379 nv20_emit_projection(GLcontext *ctx, int emit)
 380 {
 381         struct nouveau_context *nctx = to_nouveau_context(ctx);
 382         struct nouveau_channel *chan = context_chan(ctx);
 383         struct nouveau_grobj *kelvin = context_eng3d(ctx);
 384         GLmatrix m;
 385
 386         _math_matrix_ctr(&m);
 387         get_viewport_scale(ctx, m.m);
 388
 389         if (nctx->fallback == HWTNL)
 390                 _math_matrix_mul_matrix(&m, &m, &ctx->_ModelProjectMatrix);
 391
 392         BEGIN_RING(chan, kelvin, NV20TCL_PROJECTION_MATRIX(0), 16);
 393         OUT_RINGm(chan, m.m);
 394
 395         _math_matrix_dtr(&m);
 396 }