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
  35 void
  36 nv20_emit_tex_gen(struct gl_context *ctx, int emit)
  37 {
  38         const int i = emit - NOUVEAU_STATE_TEX_GEN0;
  39         struct nouveau_context *nctx = to_nouveau_context(ctx);
  40         struct nouveau_channel *chan = context_chan(ctx);
  41         struct nouveau_grobj *kelvin = context_eng3d(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_RING(chan, kelvin,
  52                                            NV20_3D_TEX_GEN_COEFF(i, j), 4);
  53                                 OUT_RINGp(chan, k, 4);
  54                         }
  55
  56                         BEGIN_RING(chan, kelvin, NV20_3D_TEX_GEN_MODE(i, j), 1);
  57                         OUT_RING(chan, nvgl_texgen_mode(coord->Mode));
  58
  59                 } else {
  60                         BEGIN_RING(chan, kelvin, NV20_3D_TEX_GEN_MODE(i, j), 1);
  61                         OUT_RING(chan, 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_channel *chan = context_chan(ctx);
  72         struct nouveau_grobj *kelvin = context_eng3d(ctx);
  73
  74         if (nctx->fallback == HWTNL &&
  75             (ctx->Texture._TexMatEnabled & 1 << i)) {
  76                 BEGIN_RING(chan, kelvin, NV20_3D_TEX_MATRIX_ENABLE(i), 1);
  77                 OUT_RING(chan, 1);
  78
  79                 BEGIN_RING(chan, kelvin, NV20_3D_TEX_MATRIX(i,0), 16);
  80                 OUT_RINGm(chan, ctx->TextureMatrixStack[i].Top->m);
  81
  82         } else {
  83                 BEGIN_RING(chan, kelvin, NV20_3D_TEX_MATRIX_ENABLE(i), 1);
  84                 OUT_RING(chan, 0);
  85         }
  86 }
  87
  88 static uint32_t
  89 get_tex_format_pot(struct gl_texture_image *ti)
  90 {
  91         switch (ti->TexFormat) {
  92         case MESA_FORMAT_ARGB8888:
  93                 return NV20_3D_TEX_FORMAT_FORMAT_A8R8G8B8;
  94
  95         case MESA_FORMAT_ARGB1555:
  96                 return NV20_3D_TEX_FORMAT_FORMAT_A1R5G5B5;
  97
  98         case MESA_FORMAT_ARGB4444:
  99                 return NV20_3D_TEX_FORMAT_FORMAT_A4R4G4B4;
 100
 101         case MESA_FORMAT_XRGB8888:
 102                 return NV20_3D_TEX_FORMAT_FORMAT_X8R8G8B8;
 103
 104         case MESA_FORMAT_RGB565:
 105                 return NV20_3D_TEX_FORMAT_FORMAT_R5G6B5;
 106
 107         case MESA_FORMAT_A8:
 108         case MESA_FORMAT_I8:
 109                 return NV20_3D_TEX_FORMAT_FORMAT_I8;
 110
 111         case MESA_FORMAT_L8:
 112                 return NV20_3D_TEX_FORMAT_FORMAT_L8;
 113
 114         default:
 115                 assert(0);
 116         }
 117 }
 118
 119 static uint32_t
 120 get_tex_format_rect(struct gl_texture_image *ti)
 121 {
 122         switch (ti->TexFormat) {
 123         case MESA_FORMAT_ARGB8888:
 124                 return NV20_3D_TEX_FORMAT_FORMAT_A8R8G8B8_RECT;
 125
 126         case MESA_FORMAT_ARGB1555:
 127                 return NV20_3D_TEX_FORMAT_FORMAT_A1R5G5B5_RECT;
 128
 129         case MESA_FORMAT_ARGB4444:
 130                 return NV20_3D_TEX_FORMAT_FORMAT_A4R4G4B4_RECT;
 131
 132         case MESA_FORMAT_XRGB8888:
 133                 return NV20_3D_TEX_FORMAT_FORMAT_R8G8B8_RECT;
 134
 135         case MESA_FORMAT_RGB565:
 136                 return NV20_3D_TEX_FORMAT_FORMAT_R5G6B5_RECT;
 137
 138         case MESA_FORMAT_L8:
 139                 return NV20_3D_TEX_FORMAT_FORMAT_L8_RECT;
 140
 141         case MESA_FORMAT_A8:
 142         case MESA_FORMAT_I8:
 143                 return NV20_3D_TEX_FORMAT_FORMAT_I8_RECT;
 144
 145         default:
 146                 assert(0);
 147         }
 148 }
 149
 150 void
 151 nv20_emit_tex_obj(struct gl_context *ctx, int emit)
 152 {
 153         const int i = emit - NOUVEAU_STATE_TEX_OBJ0;
 154         struct nouveau_channel *chan = context_chan(ctx);
 155         struct nouveau_grobj *kelvin = context_eng3d(ctx);
 156         struct nouveau_bo_context *bctx = context_bctx_i(ctx, TEXTURE, i);
 157         const int bo_flags = NOUVEAU_BO_RD | NOUVEAU_BO_GART | NOUVEAU_BO_VRAM;
 158         struct gl_texture_object *t;
 159         struct nouveau_surface *s;
 160         struct gl_texture_image *ti;
 161         uint32_t tx_format, tx_filter, tx_wrap, tx_enable;
 162
 163         if (!ctx->Texture.Unit[i]._ReallyEnabled) {
 164                 BEGIN_RING(chan, kelvin, NV20_3D_TEX_ENABLE(i), 1);
 165                 OUT_RING(chan, 0);
 166
 167                 context_dirty(ctx, TEX_SHADER);
 168                 return;
 169         }
 170
 171         t = ctx->Texture.Unit[i]._Current;
 172         s = &to_nouveau_texture(t)->surfaces[t->BaseLevel];
 173         ti = t->Image[0][t->BaseLevel];
 174
 175         if (!nouveau_texture_validate(ctx, t))
 176                 return;
 177
 178         /* Recompute the texturing registers. */
 179         tx_format = ti->DepthLog2 << 28
 180                 | ti->HeightLog2 << 24
 181                 | ti->WidthLog2 << 20
 182                 | NV20_3D_TEX_FORMAT_DIMS_2D
 183                 | NV20_3D_TEX_FORMAT_NO_BORDER
 184                 | 1 << 16;
 185
 186         tx_wrap = nvgl_wrap_mode(t->Sampler.WrapR) << 16
 187                 | nvgl_wrap_mode(t->Sampler.WrapT) << 8
 188                 | nvgl_wrap_mode(t->Sampler.WrapS) << 0;
 189
 190         tx_filter = nvgl_filter_mode(t->Sampler.MagFilter) << 24
 191                 | nvgl_filter_mode(t->Sampler.MinFilter) << 16
 192                 | 2 << 12;
 193
 194         tx_enable = NV20_3D_TEX_ENABLE_ENABLE
 195                 | log2i(t->Sampler.MaxAnisotropy) << 4;
 196
 197         if (t->Target == GL_TEXTURE_RECTANGLE) {
 198                 BEGIN_RING(chan, kelvin, NV20_3D_TEX_NPOT_PITCH(i), 1);
 199                 OUT_RING(chan, s->pitch << 16);
 200                 BEGIN_RING(chan, kelvin, NV20_3D_TEX_NPOT_SIZE(i), 1);
 201                 OUT_RING(chan, s->width << 16 | s->height);
 202
 203                 tx_format |= get_tex_format_rect(ti);
 204         } else {
 205                 tx_format |= get_tex_format_pot(ti);
 206         }
 207
 208         if (t->Sampler.MinFilter != GL_NEAREST &&
 209             t->Sampler.MinFilter != GL_LINEAR) {
 210                 int lod_min = t->Sampler.MinLod;
 211                 int lod_max = MIN2(t->Sampler.MaxLod, t->_MaxLambda);
 212                 int lod_bias = t->Sampler.LodBias
 213                         + ctx->Texture.Unit[i].LodBias;
 214
 215                 lod_max = CLAMP(lod_max, 0, 15);
 216                 lod_min = CLAMP(lod_min, 0, 15);
 217                 lod_bias = CLAMP(lod_bias, 0, 15);
 218
 219                 tx_format |= NV20_3D_TEX_FORMAT_MIPMAP;
 220                 tx_filter |= lod_bias << 8;
 221                 tx_enable |= lod_min << 26
 222                         | lod_max << 14;
 223         }
 224
 225         /* Write it to the hardware. */
 226         nouveau_bo_mark(bctx, kelvin, NV20_3D_TEX_FORMAT(i),
 227                         s->bo, tx_format, 0,
 228                         NV20_3D_TEX_FORMAT_DMA0,
 229                         NV20_3D_TEX_FORMAT_DMA1,
 230                         bo_flags | NOUVEAU_BO_OR);
 231
 232         nouveau_bo_markl(bctx, kelvin, NV20_3D_TEX_OFFSET(i),
 233                          s->bo, s->offset, bo_flags);
 234
 235         BEGIN_RING(chan, kelvin, NV20_3D_TEX_WRAP(i), 1);
 236         OUT_RING(chan, tx_wrap);
 237
 238         BEGIN_RING(chan, kelvin, NV20_3D_TEX_FILTER(i), 1);
 239         OUT_RING(chan, tx_filter);
 240
 241         BEGIN_RING(chan, kelvin, NV20_3D_TEX_ENABLE(i), 1);
 242         OUT_RING(chan, tx_enable);
 243
 244         context_dirty(ctx, TEX_SHADER);
 245 }
 246
 247 void
 248 nv20_emit_tex_shader(struct gl_context *ctx, int emit)
 249 {
 250         struct nouveau_channel *chan = context_chan(ctx);
 251         struct nouveau_grobj *kelvin = context_eng3d(ctx);
 252         uint32_t tx_shader_op = 0;
 253         int i;
 254
 255         for (i = 0; i < NV20_TEXTURE_UNITS; i++) {
 256                 if (!ctx->Texture.Unit[i]._ReallyEnabled)
 257                         continue;
 258
 259                 tx_shader_op |= NV20_3D_TEX_SHADER_OP_TX0_TEXTURE_2D << 5 * i;
 260         }
 261
 262         BEGIN_RING(chan, kelvin, NV20_3D_TEX_SHADER_OP, 1);
 263         OUT_RING(chan, tx_shader_op);
 264 }