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 "nv10_3d.xml.h"
  32 #include "nouveau_util.h"
  33 #include "nv10_driver.h"
  34 #include "main/samplerobj.h"
  35
  36 void
  37 nv10_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, NV10_3D(TEX_GEN_COEFF(i, j)), 4);
  52                                 PUSH_DATAp(push, k, 4);
  53                         }
  54
  55                         BEGIN_NV04(push, NV10_3D(TEX_GEN_MODE(i,j)), 1);
  56                         PUSH_DATA (push, nvgl_texgen_mode(coord->Mode));
  57
  58                 } else {
  59                         BEGIN_NV04(push, NV10_3D(TEX_GEN_MODE(i,j)), 1);
  60                         PUSH_DATA (push, 0);
  61                 }
  62         }
  63
  64         context_dirty_i(ctx, TEX_MAT, i);
  65 }
  66
  67 void
  68 nv10_emit_tex_mat(struct gl_context *ctx, int emit)
  69 {
  70         const int i = emit - NOUVEAU_STATE_TEX_MAT0;
  71         struct nouveau_context *nctx = to_nouveau_context(ctx);
  72         struct nouveau_pushbuf *push = context_push(ctx);
  73
  74         if (nctx->fallback == HWTNL &&
  75             ((ctx->Texture._TexMatEnabled & 1 << i) ||
  76              ctx->Texture.Unit[i]._GenFlags)) {
  77                 BEGIN_NV04(push, NV10_3D(TEX_MATRIX_ENABLE(i)), 1);
  78                 PUSH_DATA (push, 1);
  79
  80                 BEGIN_NV04(push, NV10_3D(TEX_MATRIX(i, 0)), 16);
  81                 PUSH_DATAm(push, ctx->TextureMatrixStack[i].Top->m);
  82
  83         } else {
  84                 BEGIN_NV04(push, NV10_3D(TEX_MATRIX_ENABLE(i)), 1);
  85                 PUSH_DATA (push, 0);
  86         }
  87 }
  88
  89 static uint32_t
  90 get_tex_format_pot(struct gl_texture_image *ti)
  91 {
  92         switch (ti->TexFormat) {
  93         case MESA_FORMAT_B8G8R8A8_UNORM:
  94                 return NV10_3D_TEX_FORMAT_FORMAT_A8R8G8B8;
  95
  96         case MESA_FORMAT_B8G8R8X8_UNORM:
  97                 return NV10_3D_TEX_FORMAT_FORMAT_X8R8G8B8;
  98
  99         case MESA_FORMAT_B5G5R5A1_UNORM:
 100                 return NV10_3D_TEX_FORMAT_FORMAT_A1R5G5B5;
 101
 102         case MESA_FORMAT_B4G4R4A4_UNORM:
 103                 return NV10_3D_TEX_FORMAT_FORMAT_A4R4G4B4;
 104
 105         case MESA_FORMAT_B5G6R5_UNORM:
 106                 return NV10_3D_TEX_FORMAT_FORMAT_R5G6B5;
 107
 108         case MESA_FORMAT_A_UNORM8:
 109         case MESA_FORMAT_I_UNORM8:
 110                 return NV10_3D_TEX_FORMAT_FORMAT_I8;
 111
 112         case MESA_FORMAT_L_UNORM8:
 113                 return NV10_3D_TEX_FORMAT_FORMAT_L8;
 114
 115         case MESA_FORMAT_RGB_DXT1:
 116         case MESA_FORMAT_RGBA_DXT1:
 117                 return NV10_3D_TEX_FORMAT_FORMAT_DXT1;
 118
 119         case MESA_FORMAT_RGBA_DXT3:
 120                 return NV10_3D_TEX_FORMAT_FORMAT_DXT3;
 121
 122         case MESA_FORMAT_RGBA_DXT5:
 123                 return NV10_3D_TEX_FORMAT_FORMAT_DXT5;
 124
 125         default:
 126                 assert(0);
 127         }
 128 }
 129
 130 static uint32_t
 131 get_tex_format_rect(struct gl_texture_image *ti)
 132 {
 133         switch (ti->TexFormat) {
 134         case MESA_FORMAT_B5G5R5A1_UNORM:
 135                 return NV10_3D_TEX_FORMAT_FORMAT_A1R5G5B5_RECT;
 136
 137         case MESA_FORMAT_B5G6R5_UNORM:
 138                 return NV10_3D_TEX_FORMAT_FORMAT_R5G6B5_RECT;
 139
 140         case MESA_FORMAT_B8G8R8A8_UNORM:
 141         case MESA_FORMAT_B8G8R8X8_UNORM:
 142                 return NV10_3D_TEX_FORMAT_FORMAT_A8R8G8B8_RECT;
 143
 144         case MESA_FORMAT_A_UNORM8:
 145         case MESA_FORMAT_L_UNORM8:
 146         case MESA_FORMAT_I_UNORM8:
 147                 return NV10_3D_TEX_FORMAT_FORMAT_I8_RECT;
 148
 149         default:
 150                 assert(0);
 151         }
 152 }
 153
 154 void
 155 nv10_emit_tex_obj(struct gl_context *ctx, int emit)
 156 {
 157         const int i = emit - NOUVEAU_STATE_TEX_OBJ0;
 158         struct nouveau_pushbuf *push = context_push(ctx);
 159         const int bo_flags = NOUVEAU_BO_RD | NOUVEAU_BO_GART | NOUVEAU_BO_VRAM;
 160         struct gl_texture_object *t;
 161         struct nouveau_surface *s;
 162         struct gl_texture_image *ti;
 163         const struct gl_sampler_object *sa;
 164         uint32_t tx_format, tx_filter, tx_enable;
 165
 166         PUSH_RESET(push, BUFCTX_TEX(i));
 167
 168         if (!ctx->Texture.Unit[i]._Current) {
 169                 BEGIN_NV04(push, NV10_3D(TEX_ENABLE(i)), 1);
 170                 PUSH_DATA (push, 0);
 171                 return;
 172         }
 173
 174         t = ctx->Texture.Unit[i]._Current;
 175         s = &to_nouveau_texture(t)->surfaces[t->BaseLevel];
 176         ti = t->Image[0][t->BaseLevel];
 177         sa = _mesa_get_samplerobj(ctx, i);
 178
 179         if (!nouveau_texture_validate(ctx, t))
 180                 return;
 181
 182         /* Recompute the texturing registers. */
 183         tx_format = nvgl_wrap_mode(sa->WrapT) << 28
 184                 | nvgl_wrap_mode(sa->WrapS) << 24
 185                 | ti->HeightLog2 << 20
 186                 | ti->WidthLog2 << 16
 187                 | 5 << 4 | 1 << 12;
 188
 189         tx_filter = nvgl_filter_mode(sa->MagFilter) << 28
 190                 | nvgl_filter_mode(sa->MinFilter) << 24;
 191
 192         tx_enable = NV10_3D_TEX_ENABLE_ENABLE
 193                 | log2i(sa->MaxAnisotropy) << 4;
 194
 195         if (t->Target == GL_TEXTURE_RECTANGLE) {
 196                 BEGIN_NV04(push, NV10_3D(TEX_NPOT_PITCH(i)), 1);
 197                 PUSH_DATA (push, s->pitch << 16);
 198                 BEGIN_NV04(push, NV10_3D(TEX_NPOT_SIZE(i)), 1);
 199                 PUSH_DATA (push, align(s->width, 2) << 16 | s->height);
 200
 201                 tx_format |= get_tex_format_rect(ti);
 202         } else {
 203                 tx_format |= get_tex_format_pot(ti);
 204         }
 205
 206         if (sa->MinFilter != GL_NEAREST &&
 207             sa->MinFilter != GL_LINEAR) {
 208                 int lod_min = sa->MinLod;
 209                 int lod_max = MIN2(sa->MaxLod, t->_MaxLambda);
 210                 int lod_bias = sa->LodBias
 211                         + ctx->Texture.Unit[i].LodBias;
 212
 213                 lod_max = CLAMP(lod_max, 0, 15);
 214                 lod_min = CLAMP(lod_min, 0, 15);
 215                 lod_bias = CLAMP(lod_bias, 0, 15);
 216
 217                 tx_format |= NV10_3D_TEX_FORMAT_MIPMAP;
 218                 tx_filter |= lod_bias << 8;
 219                 tx_enable |= lod_min << 26
 220                         | lod_max << 14;
 221         }
 222
 223         /* Write it to the hardware. */
 224         BEGIN_NV04(push, NV10_3D(TEX_FORMAT(i)), 1);
 225         PUSH_MTHD (push, NV10_3D(TEX_FORMAT(i)), BUFCTX_TEX(i),
 226                          s->bo, tx_format, bo_flags | NOUVEAU_BO_OR,
 227                          NV10_3D_TEX_FORMAT_DMA0,
 228                          NV10_3D_TEX_FORMAT_DMA1);
 229
 230         BEGIN_NV04(push, NV10_3D(TEX_OFFSET(i)), 1);
 231         PUSH_MTHDl(push, NV10_3D(TEX_OFFSET(i)), BUFCTX_TEX(i),
 232                          s->bo, s->offset, bo_flags);
 233
 234         BEGIN_NV04(push, NV10_3D(TEX_FILTER(i)), 1);
 235         PUSH_DATA (push, tx_filter);
 236
 237         BEGIN_NV04(push, NV10_3D(TEX_ENABLE(i)), 1);
 238         PUSH_DATA (push, tx_enable);
 239 }
 240