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_MATRIX(i) (NV10TCL_TX0_MATRIX(0) + 64 * (i))
  36
  37 void
  38 nv10_emit_tex_gen(GLcontext *ctx, int emit)
  39 {
  40 }
  41
  42 void
  43 nv10_emit_tex_mat(GLcontext *ctx, int emit)
  44 {
  45         const int i = emit - NOUVEAU_STATE_TEX_MAT0;
  46         struct nouveau_context *nctx = to_nouveau_context(ctx);
  47         struct nouveau_channel *chan = context_chan(ctx);
  48         struct nouveau_grobj *celsius = context_eng3d(ctx);
  49
  50         if (nctx->fallback == HWTNL &&
  51             ((ctx->Texture._TexMatEnabled & 1 << i) ||
  52              ctx->Texture.Unit[i]._GenFlags)) {
  53                 BEGIN_RING(chan, celsius, NV10TCL_TX_MATRIX_ENABLE(i), 1);
  54                 OUT_RING(chan, 1);
  55
  56                 BEGIN_RING(chan, celsius, TX_MATRIX(i), 16);
  57                 OUT_RINGm(chan, ctx->TextureMatrixStack[i].Top->m);
  58
  59         } else {
  60                 BEGIN_RING(chan, celsius, NV10TCL_TX_MATRIX_ENABLE(i), 1);
  61                 OUT_RING(chan, 0);
  62         }
  63 }
  64
  65 static uint32_t
  66 get_tex_format_pot(struct gl_texture_image *ti)
  67 {
  68         switch (ti->TexFormat) {
  69         case MESA_FORMAT_ARGB8888:
  70                 return NV10TCL_TX_FORMAT_FORMAT_A8R8G8B8;
  71
  72         case MESA_FORMAT_XRGB8888:
  73                 return NV10TCL_TX_FORMAT_FORMAT_X8R8G8B8;
  74
  75         case MESA_FORMAT_ARGB1555:
  76                 return NV10TCL_TX_FORMAT_FORMAT_A1R5G5B5;
  77
  78         case MESA_FORMAT_ARGB4444:
  79                 return NV10TCL_TX_FORMAT_FORMAT_A4R4G4B4;
  80
  81         case MESA_FORMAT_RGB565:
  82                 return NV10TCL_TX_FORMAT_FORMAT_R5G6B5;
  83
  84         case MESA_FORMAT_A8:
  85         case MESA_FORMAT_I8:
  86                 return NV10TCL_TX_FORMAT_FORMAT_A8;
  87
  88         case MESA_FORMAT_L8:
  89                 return NV10TCL_TX_FORMAT_FORMAT_L8;
  90
  91         case MESA_FORMAT_CI8:
  92                 return NV10TCL_TX_FORMAT_FORMAT_INDEX8;
  93
  94         default:
  95                 assert(0);
  96         }
  97 }
  98
  99 static uint32_t
 100 get_tex_format_rect(struct gl_texture_image *ti)
 101 {
 102         switch (ti->TexFormat) {
 103         case MESA_FORMAT_ARGB1555:
 104                 return NV10TCL_TX_FORMAT_FORMAT_A1R5G5B5_RECT;
 105
 106         case MESA_FORMAT_RGB565:
 107                 return NV10TCL_TX_FORMAT_FORMAT_R5G6B5_RECT;
 108
 109         case MESA_FORMAT_ARGB8888:
 110         case MESA_FORMAT_XRGB8888:
 111                 return NV10TCL_TX_FORMAT_FORMAT_A8R8G8B8_RECT;
 112
 113         case MESA_FORMAT_A8:
 114         case MESA_FORMAT_L8:
 115         case MESA_FORMAT_I8:
 116                 return NV10TCL_TX_FORMAT_FORMAT_A8_RECT;
 117
 118         default:
 119                 assert(0);
 120         }
 121 }
 122
 123 void
 124 nv10_emit_tex_obj(GLcontext *ctx, int emit)
 125 {
 126         const int i = emit - NOUVEAU_STATE_TEX_OBJ0;
 127         struct nouveau_channel *chan = context_chan(ctx);
 128         struct nouveau_grobj *celsius = context_eng3d(ctx);
 129         struct nouveau_bo_context *bctx = context_bctx_i(ctx, TEXTURE, i);
 130         const int bo_flags = NOUVEAU_BO_RD | NOUVEAU_BO_GART | NOUVEAU_BO_VRAM;
 131         struct gl_texture_object *t;
 132         struct nouveau_surface *s;
 133         struct gl_texture_image *ti;
 134         uint32_t tx_format, tx_filter, tx_enable;
 135
 136         if (!ctx->Texture.Unit[i]._ReallyEnabled) {
 137                 BEGIN_RING(chan, celsius, NV10TCL_TX_ENABLE(i), 1);
 138                 OUT_RING(chan, 0);
 139                 return;
 140         }
 141
 142         t = ctx->Texture.Unit[i]._Current;
 143         s = &to_nouveau_texture(t)->surfaces[t->BaseLevel];
 144         ti = t->Image[0][t->BaseLevel];
 145
 146         if (!nouveau_texture_validate(ctx, t))
 147                 return;
 148
 149         /* Recompute the texturing registers. */
 150         tx_format = nvgl_wrap_mode(t->WrapT) << 28
 151                 | nvgl_wrap_mode(t->WrapS) << 24
 152                 | ti->HeightLog2 << 20
 153                 | ti->WidthLog2 << 16
 154                 | 5 << 4 | 1 << 12;
 155
 156         tx_filter = nvgl_filter_mode(t->MagFilter) << 28
 157                 | nvgl_filter_mode(t->MinFilter) << 24;
 158
 159         tx_enable = NV10TCL_TX_ENABLE_ENABLE
 160                 | log2i(t->MaxAnisotropy) << 4;
 161
 162         if (t->Target == GL_TEXTURE_RECTANGLE) {
 163                 BEGIN_RING(chan, celsius, NV10TCL_TX_NPOT_PITCH(i), 1);
 164                 OUT_RING(chan, s->pitch << 16);
 165                 BEGIN_RING(chan, celsius, NV10TCL_TX_NPOT_SIZE(i), 1);
 166                 OUT_RING(chan, align(s->width, 2) << 16 | s->height);
 167
 168                 tx_format |= get_tex_format_rect(ti);
 169         } else {
 170                 tx_format |= get_tex_format_pot(ti);
 171         }
 172
 173         if (t->MinFilter != GL_NEAREST &&
 174             t->MinFilter != GL_LINEAR) {
 175                 int lod_min = t->MinLod;
 176                 int lod_max = MIN2(t->MaxLod, t->_MaxLambda);
 177                 int lod_bias = t->LodBias
 178                         + ctx->Texture.Unit[i].LodBias;
 179
 180                 lod_max = CLAMP(lod_max, 0, 15);
 181                 lod_min = CLAMP(lod_min, 0, 15);
 182                 lod_bias = CLAMP(lod_bias, 0, 15);
 183
 184                 tx_format |= NV10TCL_TX_FORMAT_MIPMAP;
 185                 tx_filter |= lod_bias << 8;
 186                 tx_enable |= lod_min << 26
 187                         | lod_max << 14;
 188         }
 189
 190         /* Write it to the hardware. */
 191         nouveau_bo_mark(bctx, celsius, NV10TCL_TX_FORMAT(i),
 192                         s->bo, tx_format, 0,
 193                         NV10TCL_TX_FORMAT_DMA0,
 194                         NV10TCL_TX_FORMAT_DMA1,
 195                         bo_flags | NOUVEAU_BO_OR);
 196
 197         nouveau_bo_markl(bctx, celsius, NV10TCL_TX_OFFSET(i),
 198                          s->bo, 0, bo_flags);
 199
 200         BEGIN_RING(chan, celsius, NV10TCL_TX_FILTER(i), 1);
 201         OUT_RING(chan, tx_filter);
 202
 203         BEGIN_RING(chan, celsius, NV10TCL_TX_ENABLE(i), 1);
 204         OUT_RING(chan, tx_enable);
 205 }
 206