src/gallium/drivers/ilo/ilo_gpe_gen6.h

   1 /*
   2  * Mesa 3-D graphics library
   3  *
   4  * Copyright (C) 2012-2013 LunarG, Inc.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included
  14  * in all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  22  * DEALINGS IN THE SOFTWARE.
  23  *
  24  * Authors:
  25  *    Chia-I Wu <olv@lunarg.com>
  26  */
  27
  28 #ifndef ILO_GPE_GEN6_H
  29 #define ILO_GPE_GEN6_H
  30
  31 #include "genhw/genhw.h"
  32 #include "intel_winsys.h"
  33
  34 #include "ilo_common.h"
  35 #include "ilo_gpe.h"
  36
  37 /**
  38  * Translate winsys tiling to hardware tiling.
  39  */
  40 static inline int
  41 ilo_gpe_gen6_translate_winsys_tiling(enum intel_tiling_mode tiling)
  42 {
  43    switch (tiling) {
  44    case INTEL_TILING_NONE:
  45       return GEN6_TILING_NONE;
  46    case INTEL_TILING_X:
  47       return GEN6_TILING_X;
  48    case INTEL_TILING_Y:
  49       return GEN6_TILING_Y;
  50    default:
  51       assert(!"unknown tiling");
  52       return GEN6_TILING_NONE;
  53    }
  54 }
  55
  56 /**
  57  * Translate a pipe texture target to the matching hardware surface type.
  58  */
  59 static inline int
  60 ilo_gpe_gen6_translate_texture(enum pipe_texture_target target)
  61 {
  62    switch (target) {
  63    case PIPE_BUFFER:
  64       return GEN6_SURFTYPE_BUFFER;
  65    case PIPE_TEXTURE_1D:
  66    case PIPE_TEXTURE_1D_ARRAY:
  67       return GEN6_SURFTYPE_1D;
  68    case PIPE_TEXTURE_2D:
  69    case PIPE_TEXTURE_RECT:
  70    case PIPE_TEXTURE_2D_ARRAY:
  71       return GEN6_SURFTYPE_2D;
  72    case PIPE_TEXTURE_3D:
  73       return GEN6_SURFTYPE_3D;
  74    case PIPE_TEXTURE_CUBE:
  75    case PIPE_TEXTURE_CUBE_ARRAY:
  76       return GEN6_SURFTYPE_CUBE;
  77    default:
  78       assert(!"unknown texture target");
  79       return GEN6_SURFTYPE_BUFFER;
  80    }
  81 }
  82
  83 static inline void
  84 zs_align_surface(const struct ilo_dev_info *dev,
  85                  unsigned align_w, unsigned align_h,
  86                  struct ilo_zs_surface *zs)
  87 {
  88    unsigned mask, shift_w, shift_h;
  89    unsigned width, height;
  90    uint32_t dw3;
  91
  92    ILO_DEV_ASSERT(dev, 6, 7.5);
  93
  94    if (ilo_dev_gen(dev) >= ILO_GEN(7)) {
  95       shift_w = 4;
  96       shift_h = 18;
  97       mask = 0x3fff;
  98    }
  99    else {
 100       shift_w = 6;
 101       shift_h = 19;
 102       mask = 0x1fff;
 103    }
 104
 105    dw3 = zs->payload[2];
 106
 107    /* aligned width and height */
 108    width = align(((dw3 >> shift_w) & mask) + 1, align_w);
 109    height = align(((dw3 >> shift_h) & mask) + 1, align_h);
 110
 111    dw3 = (dw3 & ~((mask << shift_w) | (mask << shift_h))) |
 112       (width - 1) << shift_w |
 113       (height - 1) << shift_h;
 114
 115    zs->payload[2] = dw3;
 116 }
 117
 118 #endif /* ILO_GPE_GEN6_H */