src/mesa/drivers/dri/nouveau/nv10_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 "nv10_driver.h"
  34
  35 #define TX_GEN_MODE(i, j) (NV10TCL_TX_GEN_MODE_S(i) + 4 * (j))
  36 #define TX_GEN_COEFF(i, j) (NV10TCL_TX_GEN_COEFF_S_A(i) + 16 * (j))
  37 #define TX_MATRIX(i) (NV10TCL_TX0_MATRIX(0) + 64 * (i))
  38
  39 void
  40 nv10_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 *celsius = 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, celsius,
  56                                            TX_GEN_COEFF(i, j), 4);
  57                                 OUT_RINGp(chan, k, 4);
  58                         }
  59
  60                         BEGIN_RING(chan, celsius, TX_GEN_MODE(i, j), 1);
  61                         OUT_RING(chan, nvgl_texgen_mode(coord->Mode));
  62
  63                 } else {
  64                         BEGIN_RING(chan, celsius, TX_GEN_MODE(i, j), 1);
  65                         OUT_RING(chan, 0);
  66                 }
  67         }
  68
  69         context_dirty_i(ctx, TEX_MAT, i);
  70 }
  71
  72 void
  73 nv10_emit_tex_mat(GLcontext *ctx, int emit)
  74 {
  75         const int i = emit - NOUVEAU_STATE_TEX_MAT0;
  76         struct nouveau_context *nctx = to_nouveau_context(ctx);
  77         struct nouveau_channel *chan = context_chan(ctx);
  78         struct nouveau_grobj *celsius = context_eng3d(ctx);
  79
  80         if (nctx->fallback == HWTNL &&
  81             ((ctx->Texture._TexMatEnabled & 1 << i) ||
  82              ctx->Texture.Unit[i]._GenFlags)) {
  83                 BEGIN_RING(chan, celsius, NV10TCL_TX_MATRIX_ENABLE(i), 1);
  84                 OUT_RING(chan, 1);
  85
  86                 BEGIN_RING(chan, celsius, TX_MATRIX(i), 16);
  87                 OUT_RINGm(chan, ctx->TextureMatrixStack[i].Top->m);
  88
  89         } else {
  90                 BEGIN_RING(chan, celsius, NV10TCL_TX_MATRIX_ENABLE(i), 1);
  91                 OUT_RING(chan, 0);
  92         }
  93 }
  94
  95 static uint32_t
  96 get_tex_format_pot(struct gl_texture_image *ti)
  97 {
  98         switch (ti->TexFormat) {
  99         case MESA_FORMAT_ARGB8888:
 100                 return NV10TCL_TX_FORMAT_FORMAT_A8R8G8B8;
 101
 102         case MESA_FORMAT_XRGB8888:
 103                 return NV10TCL_TX_FORMAT_FORMAT_X8R8G8B8;
 104
 105         case MESA_FORMAT_ARGB1555:
 106                 return NV10TCL_TX_FORMAT_FORMAT_A1R5G5B5;
 107
 108         case MESA_FORMAT_ARGB4444:
 109                 return NV10TCL_TX_FORMAT_FORMAT_A4R4G4B4;
 110
 111         case MESA_FORMAT_RGB565:
 112                 return NV10TCL_TX_FORMAT_FORMAT_R5G6B5;
 113
 114         case MESA_FORMAT_A8:
 115         case MESA_FORMAT_I8:
 116                 return NV10TCL_TX_FORMAT_FORMAT_A8;
 117
 118         case MESA_FORMAT_L8:
 119                 return NV10TCL_TX_FORMAT_FORMAT_L8;
 120
 121         case MESA_FORMAT_CI8:
 122                 return NV10TCL_TX_FORMAT_FORMAT_INDEX8;
 123
 124         default:
 125                 assert(0);
 126         }
 127 }
 128
 129 static uint32_t
 130 get_tex_format_rect(struct gl_texture_image *ti)
 131 {
 132         switch (ti->TexFormat) {
 133         case MESA_FORMAT_ARGB1555:
 134                 return NV10TCL_TX_FORMAT_FORMAT_A1R5G5B5_RECT;
 135
 136         case MESA_FORMAT_RGB565:
 137                 return NV10TCL_TX_FORMAT_FORMAT_R5G6B5_RECT;
 138
 139         case MESA_FORMAT_ARGB8888:
 140         case MESA_FORMAT_XRGB8888:
 141                 return NV10TCL_TX_FORMAT_FORMAT_A8R8G8B8_RECT;
 142
 143         case MESA_FORMAT_A8:
 144         case MESA_FORMAT_L8:
 145         case MESA_FORMAT_I8:
 146                 return NV10TCL_TX_FORMAT_FORMAT_A8_RECT;
 147
 148         default:
 149                 assert(0);
 150         }
 151 }
 152
 153 void
 154 nv10_emit_tex_obj(GLcontext *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 *celsius = 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_enable;
 165
 166         if (!ctx->Texture.Unit[i]._ReallyEnabled) {
 167                 BEGIN_RING(chan, celsius, NV10TCL_TX_ENABLE(i), 1);
 168                 OUT_RING(chan, 0);
 169                 return;
 170         }
 171
 172         t = ctx->Texture.Unit[i]._Current;
 173         s = &to_nouveau_texture(t)->surfaces[t->BaseLevel];
 174         ti = t->Image[0][t->BaseLevel];
 175
 176         if (!nouveau_texture_validate(ctx, t))
 177                 return;
 178
 179         /* Recompute the texturing registers. */
 180         tx_format = nvgl_wrap_mode(t->WrapT) << 28
 181                 | nvgl_wrap_mode(t->WrapS) << 24
 182                 | ti->HeightLog2 << 20
 183                 | ti->WidthLog2 << 16
 184                 | 5 << 4 | 1 << 12;
 185
 186         tx_filter = nvgl_filter_mode(t->MagFilter) << 28
 187                 | nvgl_filter_mode(t->MinFilter) << 24;
 188
 189         tx_enable = NV10TCL_TX_ENABLE_ENABLE
 190                 | log2i(t->MaxAnisotropy) << 4;
 191
 192         if (t->Target == GL_TEXTURE_RECTANGLE) {
 193                 BEGIN_RING(chan, celsius, NV10TCL_TX_NPOT_PITCH(i), 1);
 194                 OUT_RING(chan, s->pitch << 16);
 195                 BEGIN_RING(chan, celsius, NV10TCL_TX_NPOT_SIZE(i), 1);
 196                 OUT_RING(chan, align(s->width, 2) << 16 | s->height);
 197
 198                 tx_format |= get_tex_format_rect(ti);
 199         } else {
 200                 tx_format |= get_tex_format_pot(ti);
 201         }
 202
 203         if (t->MinFilter != GL_NEAREST &&
 204             t->MinFilter != GL_LINEAR) {
 205                 int lod_min = t->MinLod;
 206                 int lod_max = MIN2(t->MaxLod, t->_MaxLambda);
 207                 int lod_bias = t->LodBias
 208                         + ctx->Texture.Unit[i].LodBias;
 209
 210                 lod_max = CLAMP(lod_max, 0, 15);
 211                 lod_min = CLAMP(lod_min, 0, 15);
 212                 lod_bias = CLAMP(lod_bias, 0, 15);
 213
 214                 tx_format |= NV10TCL_TX_FORMAT_MIPMAP;
 215                 tx_filter |= lod_bias << 8;
 216                 tx_enable |= lod_min << 26
 217                         | lod_max << 14;
 218         }
 219
 220         /* Write it to the hardware. */
 221         nouveau_bo_mark(bctx, celsius, NV10TCL_TX_FORMAT(i),
 222                         s->bo, tx_format, 0,
 223                         NV10TCL_TX_FORMAT_DMA0,
 224                         NV10TCL_TX_FORMAT_DMA1,
 225                         bo_flags | NOUVEAU_BO_OR);
 226
 227         nouveau_bo_markl(bctx, celsius, NV10TCL_TX_OFFSET(i),
 228                          s->bo, 0, bo_flags);
 229
 230         BEGIN_RING(chan, celsius, NV10TCL_TX_FILTER(i), 1);
 231         OUT_RING(chan, tx_filter);
 232
 233         BEGIN_RING(chan, celsius, NV10TCL_TX_ENABLE(i), 1);
 234         OUT_RING(chan, tx_enable);
 235 }
 236