src/mesa/drivers/dri/nouveau/nv04_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_texture.h"
  30 #include "nouveau_util.h"
  31 #include "nouveau_gldefs.h"
  32 #include "nouveau_class.h"
  33 #include "nv04_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_A8:
  40         case MESA_FORMAT_L8:
  41         case MESA_FORMAT_I8:
  42                 return NV04_TEXTURED_TRIANGLE_FORMAT_COLOR_Y8;
  43         case MESA_FORMAT_ARGB1555:
  44                 return NV04_TEXTURED_TRIANGLE_FORMAT_COLOR_A1R5G5B5;
  45         case MESA_FORMAT_ARGB4444:
  46                 return NV04_TEXTURED_TRIANGLE_FORMAT_COLOR_A4R4G4B4;
  47         case MESA_FORMAT_RGB565:
  48                 return NV04_TEXTURED_TRIANGLE_FORMAT_COLOR_R5G6B5;
  49         case MESA_FORMAT_ARGB8888:
  50                 return NV04_TEXTURED_TRIANGLE_FORMAT_COLOR_A8R8G8B8;
  51         case MESA_FORMAT_XRGB8888:
  52                 return NV04_TEXTURED_TRIANGLE_FORMAT_COLOR_X8R8G8B8;
  53         default:
  54                 assert(0);
  55         }
  56 }
  57
  58 static inline unsigned
  59 get_wrap_mode(unsigned wrap)
  60 {
  61         switch (wrap) {
  62         case GL_REPEAT:
  63                 return 0x1;
  64         case GL_MIRRORED_REPEAT:
  65                 return 0x2;
  66         case GL_CLAMP:
  67         case GL_CLAMP_TO_EDGE:
  68                 return 0x3;
  69         case GL_CLAMP_TO_BORDER:
  70                 return 0x4;
  71         default:
  72                 assert(0);
  73         }
  74 }
  75
  76 void
  77 nv04_emit_tex_obj(GLcontext *ctx, int emit)
  78 {
  79         const int i = emit - NOUVEAU_STATE_TEX_OBJ0;
  80         struct nouveau_channel *chan = context_chan(ctx);
  81         struct nouveau_grobj *fahrenheit = nv04_context_engine(ctx);
  82         struct nouveau_bo_context *bctx = context_bctx_i(ctx, TEXTURE, i);
  83         const int bo_flags = NOUVEAU_BO_RD | NOUVEAU_BO_GART | NOUVEAU_BO_VRAM;
  84         struct nouveau_surface *s;
  85         uint32_t format = 0xa0, filter = 0x1010;
  86
  87         if (i && !nv04_mtex_engine(fahrenheit))
  88                 return;
  89
  90         if (ctx->Texture.Unit[i]._ReallyEnabled) {
  91                 struct gl_texture_object *t = ctx->Texture.Unit[i]._Current;
  92                 struct gl_texture_image *ti = t->Image[0][t->BaseLevel];
  93                 int lod_max = 1, lod_bias = 0;
  94
  95                 if (!nouveau_texture_validate(ctx, t))
  96                         return;
  97
  98                 s = &to_nouveau_texture(t)->surfaces[t->BaseLevel];
  99
 100                 if (t->MinFilter != GL_NEAREST &&
 101                     t->MinFilter != GL_LINEAR) {
 102                         lod_max = CLAMP(MIN2(t->MaxLod, t->_MaxLambda),
 103                                         0, 15) + 1;
 104
 105                         lod_bias = CLAMP(ctx->Texture.Unit[i].LodBias +
 106                                          t->LodBias, 0, 15);
 107                 }
 108
 109                 format |= get_wrap_mode(t->WrapT) << 28 |
 110                         get_wrap_mode(t->WrapS) << 24 |
 111                         ti->HeightLog2 << 20 |
 112                         ti->WidthLog2 << 16 |
 113                         lod_max << 12 |
 114                         get_tex_format(ti);
 115
 116                 filter |= log2i(t->MaxAnisotropy) << 31 |
 117                         nvgl_filter_mode(t->MagFilter) << 28 |
 118                         log2i(t->MaxAnisotropy) << 27 |
 119                         nvgl_filter_mode(t->MinFilter) << 24 |
 120                         lod_bias << 16;
 121
 122         } else {
 123                 s = &to_nv04_context(ctx)->dummy_texture;
 124
 125                 format |= NV04_TEXTURED_TRIANGLE_FORMAT_ADDRESSU_REPEAT |
 126                         NV04_TEXTURED_TRIANGLE_FORMAT_ADDRESSV_REPEAT |
 127                         1 << 12 |
 128                         NV04_TEXTURED_TRIANGLE_FORMAT_COLOR_A8R8G8B8;
 129
 130                 filter |= NV04_TEXTURED_TRIANGLE_FILTER_MINIFY_NEAREST |
 131                         NV04_TEXTURED_TRIANGLE_FILTER_MAGNIFY_NEAREST;
 132         }
 133
 134         if (nv04_mtex_engine(fahrenheit)) {
 135                 nouveau_bo_markl(bctx, fahrenheit,
 136                                  NV04_MULTITEX_TRIANGLE_OFFSET(i),
 137                                  s->bo, 0, bo_flags);
 138
 139                 nouveau_bo_mark(bctx, fahrenheit,
 140                                 NV04_MULTITEX_TRIANGLE_FORMAT(i),
 141                                 s->bo, format, 0,
 142                                 NV04_MULTITEX_TRIANGLE_FORMAT_DMA_A,
 143                                 NV04_MULTITEX_TRIANGLE_FORMAT_DMA_B,
 144                                 bo_flags | NOUVEAU_BO_OR);
 145
 146                 BEGIN_RING(chan, fahrenheit, NV04_MULTITEX_TRIANGLE_FILTER(i), 1);
 147                 OUT_RING(chan, filter);
 148
 149         } else {
 150                 nouveau_bo_markl(bctx, fahrenheit,
 151                                  NV04_TEXTURED_TRIANGLE_OFFSET,
 152                                  s->bo, 0, bo_flags);
 153
 154                 nouveau_bo_mark(bctx, fahrenheit,
 155                                 NV04_TEXTURED_TRIANGLE_FORMAT,
 156                                 s->bo, format, 0,
 157                                 NV04_TEXTURED_TRIANGLE_FORMAT_DMA_A,
 158                                 NV04_TEXTURED_TRIANGLE_FORMAT_DMA_B,
 159                                 bo_flags | NOUVEAU_BO_OR);
 160
 161                 BEGIN_RING(chan, fahrenheit, NV04_TEXTURED_TRIANGLE_COLORKEY, 1);
 162                 OUT_RING(chan, 0);
 163
 164                 BEGIN_RING(chan, fahrenheit, NV04_TEXTURED_TRIANGLE_FILTER, 1);
 165                 OUT_RING(chan, filter);
 166         }
 167 }