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 "nouveau_class.h"
  32 #include "nouveau_util.h"
  33 #include "nv20_driver.h"
  34
  35 static uint32_t
  36 get_tex_format(struct gl_texture_image *ti)
  37 {
  38         switch (ti->TexFormat) {
  39         case MESA_FORMAT_ARGB8888:
  40                 return NV20TCL_TX_FORMAT_FORMAT_A8R8G8B8;
  41
  42         case MESA_FORMAT_ARGB1555:
  43                 return NV20TCL_TX_FORMAT_FORMAT_A1R5G5B5;
  44
  45         case MESA_FORMAT_ARGB4444:
  46                 return NV20TCL_TX_FORMAT_FORMAT_A4R4G4B4;
  47
  48         case MESA_FORMAT_RGB565:
  49                 return NV20TCL_TX_FORMAT_FORMAT_R5G6B5;
  50
  51         case MESA_FORMAT_A8:
  52                 return NV20TCL_TX_FORMAT_FORMAT_A8;
  53
  54         case MESA_FORMAT_L8:
  55                 return NV20TCL_TX_FORMAT_FORMAT_L8;
  56
  57         case MESA_FORMAT_CI8:
  58                 return NV20TCL_TX_FORMAT_FORMAT_INDEX8;
  59
  60         default:
  61                 assert(0);
  62         }
  63 }
  64
  65 void
  66 nv20_emit_tex_obj(GLcontext *ctx, int emit)
  67 {
  68         const int i = emit - NOUVEAU_STATE_TEX_OBJ0;
  69         struct nouveau_channel *chan = context_chan(ctx);
  70         struct nouveau_grobj *kelvin = context_eng3d(ctx);
  71         struct nouveau_bo_context *bctx = context_bctx_i(ctx, TEXTURE, i);
  72         const int bo_flags = NOUVEAU_BO_RD | NOUVEAU_BO_GART | NOUVEAU_BO_VRAM;
  73         struct gl_texture_object *t;
  74         struct nouveau_surface *s;
  75         struct gl_texture_image *ti;
  76         uint32_t tx_format, tx_filter, tx_wrap, tx_enable;
  77
  78         if (!ctx->Texture.Unit[i]._ReallyEnabled) {
  79                 BEGIN_RING(chan, kelvin, NV20TCL_TX_ENABLE(i), 1);
  80                 OUT_RING(chan, 0);
  81
  82                 context_dirty(ctx, TEX_SHADER);
  83                 return;
  84         }
  85
  86         t = ctx->Texture.Unit[i]._Current;
  87         s = &to_nouveau_texture(t)->surfaces[t->BaseLevel];
  88         ti = t->Image[0][t->BaseLevel];
  89
  90         if (!nouveau_texture_validate(ctx, t))
  91                 return;
  92
  93         /* Recompute the texturing registers. */
  94         tx_format = ti->DepthLog2 << 28
  95                 | ti->HeightLog2 << 24
  96                 | ti->WidthLog2 << 20
  97                 | get_tex_format(ti)
  98                 | NV20TCL_TX_FORMAT_DIMS_2D
  99                 | NV20TCL_TX_FORMAT_NO_BORDER
 100                 | 1 << 16;
 101
 102         tx_wrap = nvgl_wrap_mode(t->WrapR) << 16
 103                 | nvgl_wrap_mode(t->WrapT) << 8
 104                 | nvgl_wrap_mode(t->WrapS) << 0;
 105
 106         tx_filter = nvgl_filter_mode(t->MagFilter) << 24
 107                 | nvgl_filter_mode(t->MinFilter) << 16;
 108
 109         tx_enable = NV20TCL_TX_ENABLE_ENABLE
 110                 | log2i(t->MaxAnisotropy) << 4;
 111
 112         if (t->MinFilter != GL_NEAREST &&
 113             t->MinFilter != GL_LINEAR) {
 114                 int lod_min = t->MinLod;
 115                 int lod_max = MIN2(t->MaxLod, t->_MaxLambda);
 116                 int lod_bias = t->LodBias
 117                         + ctx->Texture.Unit[i].LodBias;
 118
 119                 lod_max = CLAMP(lod_max, 0, 15);
 120                 lod_min = CLAMP(lod_min, 0, 15);
 121                 lod_bias = CLAMP(lod_bias, 0, 15);
 122
 123                 tx_format |= NV20TCL_TX_FORMAT_MIPMAP;
 124                 tx_filter |= lod_bias << 8;
 125                 tx_enable |= lod_min << 26
 126                         | lod_max << 14;
 127         }
 128
 129         /* Write it to the hardware. */
 130         nouveau_bo_mark(bctx, kelvin, NV20TCL_TX_FORMAT(i),
 131                         s->bo, tx_format, 0,
 132                         NV20TCL_TX_FORMAT_DMA0,
 133                         NV20TCL_TX_FORMAT_DMA1,
 134                         bo_flags | NOUVEAU_BO_OR);
 135
 136         nouveau_bo_markl(bctx, kelvin, NV20TCL_TX_OFFSET(i),
 137                          s->bo, 0, bo_flags);
 138
 139         BEGIN_RING(chan, kelvin, NV20TCL_TX_WRAP(i), 1);
 140         OUT_RING(chan, tx_wrap);
 141
 142         BEGIN_RING(chan, kelvin, NV20TCL_TX_FILTER(i), 1);
 143         OUT_RING(chan, tx_filter);
 144
 145         BEGIN_RING(chan, kelvin, NV20TCL_TX_ENABLE(i), 1);
 146         OUT_RING(chan, tx_enable);
 147
 148         context_dirty(ctx, TEX_SHADER);
 149 }
 150
 151 void
 152 nv20_emit_tex_shader(GLcontext *ctx, int emit)
 153 {
 154         struct nouveau_channel *chan = context_chan(ctx);
 155         struct nouveau_grobj *kelvin = context_eng3d(ctx);
 156         uint32_t tx_shader_op = 0;
 157         int i;
 158
 159         for (i = 0; i < NV20_TEXTURE_UNITS; i++) {
 160                 if (!ctx->Texture.Unit[i]._ReallyEnabled)
 161                         continue;
 162
 163                 tx_shader_op |= NV20TCL_TX_SHADER_OP_TX0_TEXTURE_2D << 5 * i;
 164         }
 165
 166         BEGIN_RING(chan, kelvin, NV20TCL_TX_SHADER_OP, 1);
 167         OUT_RING(chan, tx_shader_op);
 168 }