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_pushbuf *push = context_push(ctx);
  41         struct gl_texture_unit *unit = &ctx->Texture.Unit[i];
  42         int j;
  43
  44         for (j = 0; j < 4; j++) {
  45                 if (nctx->fallback == HWTNL && (unit->TexGenEnabled & 1 << j)) {
  46                         struct gl_texgen *coord = get_texgen_coord(unit, j);
  47                         float *k = get_texgen_coeff(coord);
  48
  49                         if (k) {
  50                                 BEGIN_NV04(push, NV20_3D(TEX_GEN_COEFF(i, j)), 4);
  51                                 PUSH_DATAp(push, k, 4);
  52                         }
  53
  54                         BEGIN_NV04(push, NV20_3D(TEX_GEN_MODE(i, j)), 1);
  55                         PUSH_DATA (push, nvgl_texgen_mode(coord->Mode));
  56
  57                 } else {
  58                         BEGIN_NV04(push, NV20_3D(TEX_GEN_MODE(i, j)), 1);
  59                         PUSH_DATA (push, 0);
  60                 }
  61         }
  62 }
  63
  64 void
  65 nv20_emit_tex_mat(struct gl_context *ctx, int emit)
  66 {
  67         const int i = emit - NOUVEAU_STATE_TEX_MAT0;
  68         struct nouveau_context *nctx = to_nouveau_context(ctx);
  69         struct nouveau_pushbuf *push = context_push(ctx);
  70
  71         if (nctx->fallback == HWTNL &&
  72             (ctx->Texture._TexMatEnabled & 1 << i)) {
  73                 BEGIN_NV04(push, NV20_3D(TEX_MATRIX_ENABLE(i)), 1);
  74                 PUSH_DATA (push, 1);
  75
  76                 BEGIN_NV04(push, NV20_3D(TEX_MATRIX(i,0)), 16);
  77                 PUSH_DATAm(push, ctx->TextureMatrixStack[i].Top->m);
  78
  79         } else {
  80                 BEGIN_NV04(push, NV20_3D(TEX_MATRIX_ENABLE(i)), 1);
  81                 PUSH_DATA (push, 0);
  82         }
  83 }
  84
  85 static uint32_t
  86 get_tex_format_pot(struct gl_texture_image *ti)
  87 {
  88         switch (ti->TexFormat) {
  89         case MESA_FORMAT_ARGB8888:
  90                 return NV20_3D_TEX_FORMAT_FORMAT_A8R8G8B8;
  91
  92         case MESA_FORMAT_ARGB1555:
  93                 return NV20_3D_TEX_FORMAT_FORMAT_A1R5G5B5;
  94
  95         case MESA_FORMAT_ARGB4444:
  96                 return NV20_3D_TEX_FORMAT_FORMAT_A4R4G4B4;
  97
  98         case MESA_FORMAT_XRGB8888:
  99                 return NV20_3D_TEX_FORMAT_FORMAT_X8R8G8B8;
 100
 101         case MESA_FORMAT_RGB565:
 102                 return NV20_3D_TEX_FORMAT_FORMAT_R5G6B5;
 103
 104         case MESA_FORMAT_A8:
 105         case MESA_FORMAT_I8:
 106                 return NV20_3D_TEX_FORMAT_FORMAT_I8;
 107
 108         case MESA_FORMAT_L8:
 109                 return NV20_3D_TEX_FORMAT_FORMAT_L8;
 110
 111         default:
 112                 assert(0);
 113         }
 114 }
 115
 116 static uint32_t
 117 get_tex_format_rect(struct gl_texture_image *ti)
 118 {
 119         switch (ti->TexFormat) {
 120         case MESA_FORMAT_ARGB8888:
 121                 return NV20_3D_TEX_FORMAT_FORMAT_A8R8G8B8_RECT;
 122
 123         case MESA_FORMAT_ARGB1555:
 124                 return NV20_3D_TEX_FORMAT_FORMAT_A1R5G5B5_RECT;
 125
 126         case MESA_FORMAT_ARGB4444:
 127                 return NV20_3D_TEX_FORMAT_FORMAT_A4R4G4B4_RECT;
 128
 129         case MESA_FORMAT_XRGB8888:
 130                 return NV20_3D_TEX_FORMAT_FORMAT_R8G8B8_RECT;
 131
 132         case MESA_FORMAT_RGB565:
 133                 return NV20_3D_TEX_FORMAT_FORMAT_R5G6B5_RECT;
 134
 135         case MESA_FORMAT_L8:
 136                 return NV20_3D_TEX_FORMAT_FORMAT_L8_RECT;
 137
 138         case MESA_FORMAT_A8:
 139         case MESA_FORMAT_I8:
 140                 return NV20_3D_TEX_FORMAT_FORMAT_I8_RECT;
 141
 142         default:
 143                 assert(0);
 144         }
 145 }
 146
 147 void
 148 nv20_emit_tex_obj(struct gl_context *ctx, int emit)
 149 {
 150         const int i = emit - NOUVEAU_STATE_TEX_OBJ0;
 151         struct nouveau_pushbuf *push = context_push(ctx);
 152         const int bo_flags = NOUVEAU_BO_RD | NOUVEAU_BO_GART | NOUVEAU_BO_VRAM;
 153         struct gl_texture_object *t;
 154         struct nouveau_surface *s;
 155         struct gl_texture_image *ti;
 156         uint32_t tx_format, tx_filter, tx_wrap, tx_enable;
 157
 158         PUSH_RESET(push, BUFCTX_TEX(i));
 159
 160         if (!ctx->Texture.Unit[i]._ReallyEnabled) {
 161                 BEGIN_NV04(push, NV20_3D(TEX_ENABLE(i)), 1);
 162                 PUSH_DATA (push, 0);
 163
 164                 context_dirty(ctx, TEX_SHADER);
 165                 return;
 166         }
 167
 168         t = ctx->Texture.Unit[i]._Current;
 169         s = &to_nouveau_texture(t)->surfaces[t->BaseLevel];
 170         ti = t->Image[0][t->BaseLevel];
 171
 172         if (!nouveau_texture_validate(ctx, t))
 173                 return;
 174
 175         /* Recompute the texturing registers. */
 176         tx_format = ti->DepthLog2 << 28
 177                 | ti->HeightLog2 << 24
 178                 | ti->WidthLog2 << 20
 179                 | NV20_3D_TEX_FORMAT_DIMS_2D
 180                 | NV20_3D_TEX_FORMAT_NO_BORDER
 181                 | 1 << 16;
 182
 183         tx_wrap = nvgl_wrap_mode(t->Sampler.WrapR) << 16
 184                 | nvgl_wrap_mode(t->Sampler.WrapT) << 8
 185                 | nvgl_wrap_mode(t->Sampler.WrapS) << 0;
 186
 187         tx_filter = nvgl_filter_mode(t->Sampler.MagFilter) << 24
 188                 | nvgl_filter_mode(t->Sampler.MinFilter) << 16
 189                 | 2 << 12;
 190
 191         tx_enable = NV20_3D_TEX_ENABLE_ENABLE
 192                 | log2i(t->Sampler.MaxAnisotropy) << 4;
 193
 194         if (t->Target == GL_TEXTURE_RECTANGLE) {
 195                 BEGIN_NV04(push, NV20_3D(TEX_NPOT_PITCH(i)), 1);
 196                 PUSH_DATA (push, s->pitch << 16);
 197                 BEGIN_NV04(push, NV20_3D(TEX_NPOT_SIZE(i)), 1);
 198                 PUSH_DATA (push, s->width << 16 | s->height);
 199
 200                 tx_format |= get_tex_format_rect(ti);
 201         } else {
 202                 tx_format |= get_tex_format_pot(ti);
 203         }
 204
 205         if (t->Sampler.MinFilter != GL_NEAREST &&
 206             t->Sampler.MinFilter != GL_LINEAR) {
 207                 int lod_min = t->Sampler.MinLod;
 208                 int lod_max = MIN2(t->Sampler.MaxLod, t->_MaxLambda);
 209                 int lod_bias = t->Sampler.LodBias
 210                         + ctx->Texture.Unit[i].LodBias;
 211
 212                 lod_max = CLAMP(lod_max, 0, 15);
 213                 lod_min = CLAMP(lod_min, 0, 15);
 214                 lod_bias = CLAMP(lod_bias, 0, 15);
 215
 216                 tx_format |= NV20_3D_TEX_FORMAT_MIPMAP;
 217                 tx_filter |= lod_bias << 8;
 218                 tx_enable |= lod_min << 26
 219                         | lod_max << 14;
 220         }
 221
 222         /* Write it to the hardware. */
 223         BEGIN_NV04(push, NV20_3D(TEX_FORMAT(i)), 1);
 224         PUSH_MTHD (push, NV20_3D(TEX_FORMAT(i)), BUFCTX_TEX(i),
 225                          s->bo, tx_format, bo_flags | NOUVEAU_BO_OR,
 226                          NV20_3D_TEX_FORMAT_DMA0,
 227                          NV20_3D_TEX_FORMAT_DMA1);
 228
 229         BEGIN_NV04(push, NV20_3D(TEX_OFFSET(i)), 1);
 230         PUSH_MTHDl(push, NV20_3D(TEX_OFFSET(i)), BUFCTX_TEX(i),
 231                          s->bo, s->offset, bo_flags);
 232
 233         BEGIN_NV04(push, NV20_3D(TEX_WRAP(i)), 1);
 234         PUSH_DATA (push, tx_wrap);
 235
 236         BEGIN_NV04(push, NV20_3D(TEX_FILTER(i)), 1);
 237         PUSH_DATA (push, tx_filter);
 238
 239         BEGIN_NV04(push, NV20_3D(TEX_ENABLE(i)), 1);
 240         PUSH_DATA (push, tx_enable);
 241
 242         context_dirty(ctx, TEX_SHADER);
 243 }
 244
 245 void
 246 nv20_emit_tex_shader(struct gl_context *ctx, int emit)
 247 {
 248         struct nouveau_pushbuf *push = context_push(ctx);
 249         uint32_t tx_shader_op = 0;
 250         int i;
 251
 252         for (i = 0; i < NV20_TEXTURE_UNITS; i++) {
 253                 if (!ctx->Texture.Unit[i]._ReallyEnabled)
 254                         continue;
 255
 256                 tx_shader_op |= NV20_3D_TEX_SHADER_OP_TX0_TEXTURE_2D << 5 * i;
 257         }
 258
 259         BEGIN_NV04(push, NV20_3D(TEX_SHADER_OP), 1);
 260         PUSH_DATA (push, tx_shader_op);
 261 }