src/gallium/frontends/clover/core/format.cpp

   1 //
   2 // Copyright 2012 Francisco Jerez
   3 //
   4 // Permission is hereby granted, free of charge, to any person obtaining a
   5 // copy of this software and associated documentation files (the "Software"),
   6 // to deal in the Software without restriction, including without limitation
   7 // the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8 // and/or sell copies of the Software, and to permit persons to whom the
   9 // Software is furnished to do so, subject to the following conditions:
  10 //
  11 // The above copyright notice and this permission notice shall be included in
  12 // all copies or substantial portions of the Software.
  13 //
  14 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17 // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18 // OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19 // ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20 // OTHER DEALINGS IN THE SOFTWARE.
  21 //
  22
  23 #include "core/format.hpp"
  24 #include "core/memory.hpp"
  25 #include "pipe/p_screen.h"
  26 #include "pipe/p_context.h"
  27
  28 namespace clover {
  29    static const std::map<cl_image_format, pipe_format> formats {
  30       { { CL_BGRA, CL_UNORM_INT8 }, PIPE_FORMAT_B8G8R8A8_UNORM },
  31       { { CL_ARGB, CL_UNORM_INT8 }, PIPE_FORMAT_A8R8G8B8_UNORM },
  32       { { CL_RGB, CL_UNORM_SHORT_565 }, PIPE_FORMAT_B5G6R5_UNORM },
  33       { { CL_LUMINANCE, CL_UNORM_INT8 }, PIPE_FORMAT_L8_UNORM },
  34       { { CL_A, CL_UNORM_INT8 }, PIPE_FORMAT_A8_UNORM },
  35       { { CL_INTENSITY, CL_UNORM_INT8 }, PIPE_FORMAT_I8_UNORM },
  36       { { CL_LUMINANCE, CL_UNORM_INT16 }, PIPE_FORMAT_L16_UNORM },
  37       { { CL_R, CL_FLOAT }, PIPE_FORMAT_R32_FLOAT },
  38       { { CL_RG, CL_FLOAT }, PIPE_FORMAT_R32G32_FLOAT },
  39       { { CL_RGB, CL_FLOAT }, PIPE_FORMAT_R32G32B32_FLOAT },
  40       { { CL_RGBA, CL_FLOAT }, PIPE_FORMAT_R32G32B32A32_FLOAT },
  41       { { CL_R, CL_UNORM_INT16 }, PIPE_FORMAT_R16_UNORM },
  42       { { CL_RG, CL_UNORM_INT16 }, PIPE_FORMAT_R16G16_UNORM },
  43       { { CL_RGB, CL_UNORM_INT16 }, PIPE_FORMAT_R16G16B16_UNORM },
  44       { { CL_RGBA, CL_UNORM_INT16 }, PIPE_FORMAT_R16G16B16A16_UNORM },
  45       { { CL_R, CL_SNORM_INT16 }, PIPE_FORMAT_R16_SNORM },
  46       { { CL_RG, CL_SNORM_INT16 }, PIPE_FORMAT_R16G16_SNORM },
  47       { { CL_RGB, CL_SNORM_INT16 }, PIPE_FORMAT_R16G16B16_SNORM },
  48       { { CL_RGBA, CL_SNORM_INT16 }, PIPE_FORMAT_R16G16B16A16_SNORM },
  49       { { CL_R, CL_UNORM_INT8 }, PIPE_FORMAT_R8_UNORM },
  50       { { CL_RG, CL_UNORM_INT8 }, PIPE_FORMAT_R8G8_UNORM },
  51       { { CL_RGB, CL_UNORM_INT8 }, PIPE_FORMAT_R8G8B8_UNORM },
  52       { { CL_RGBA, CL_UNORM_INT8 }, PIPE_FORMAT_R8G8B8A8_UNORM },
  53       { { CL_R, CL_SNORM_INT8 }, PIPE_FORMAT_R8_SNORM },
  54       { { CL_RG, CL_SNORM_INT8 }, PIPE_FORMAT_R8G8_SNORM },
  55       { { CL_RGB, CL_SNORM_INT8 }, PIPE_FORMAT_R8G8B8_SNORM },
  56       { { CL_RGBA, CL_SNORM_INT8 }, PIPE_FORMAT_R8G8B8A8_SNORM },
  57       { { CL_R, CL_HALF_FLOAT }, PIPE_FORMAT_R16_FLOAT },
  58       { { CL_RG, CL_HALF_FLOAT }, PIPE_FORMAT_R16G16_FLOAT },
  59       { { CL_RGB, CL_HALF_FLOAT }, PIPE_FORMAT_R16G16B16_FLOAT },
  60       { { CL_RGBA, CL_HALF_FLOAT }, PIPE_FORMAT_R16G16B16A16_FLOAT },
  61       { { CL_RGBx, CL_UNORM_SHORT_555 }, PIPE_FORMAT_B5G5R5X1_UNORM },
  62       { { CL_RGBx, CL_UNORM_INT8 }, PIPE_FORMAT_R8G8B8X8_UNORM },
  63       { { CL_A, CL_UNORM_INT16 }, PIPE_FORMAT_A16_UNORM },
  64       { { CL_INTENSITY, CL_UNORM_INT16 }, PIPE_FORMAT_I16_UNORM },
  65       { { CL_LUMINANCE, CL_SNORM_INT8 }, PIPE_FORMAT_L8_SNORM },
  66       { { CL_INTENSITY, CL_SNORM_INT8 }, PIPE_FORMAT_I8_SNORM },
  67       { { CL_A, CL_SNORM_INT16 }, PIPE_FORMAT_A16_SNORM },
  68       { { CL_LUMINANCE, CL_SNORM_INT16 }, PIPE_FORMAT_L16_SNORM },
  69       { { CL_INTENSITY, CL_SNORM_INT16 }, PIPE_FORMAT_I16_SNORM },
  70       { { CL_A, CL_HALF_FLOAT }, PIPE_FORMAT_A16_FLOAT },
  71       { { CL_LUMINANCE, CL_HALF_FLOAT }, PIPE_FORMAT_L16_FLOAT },
  72       { { CL_INTENSITY, CL_HALF_FLOAT }, PIPE_FORMAT_I16_FLOAT },
  73       { { CL_A, CL_FLOAT }, PIPE_FORMAT_A32_FLOAT },
  74       { { CL_LUMINANCE, CL_FLOAT }, PIPE_FORMAT_L32_FLOAT },
  75       { { CL_INTENSITY, CL_FLOAT }, PIPE_FORMAT_I32_FLOAT },
  76       { { CL_RA, CL_UNORM_INT8 }, PIPE_FORMAT_R8A8_UNORM },
  77       { { CL_R, CL_UNSIGNED_INT8 }, PIPE_FORMAT_R8_UINT },
  78       { { CL_RG, CL_UNSIGNED_INT8 }, PIPE_FORMAT_R8G8_UINT },
  79       { { CL_RGB, CL_UNSIGNED_INT8 }, PIPE_FORMAT_R8G8B8_UINT },
  80       { { CL_RGBA, CL_UNSIGNED_INT8 }, PIPE_FORMAT_R8G8B8A8_UINT },
  81       { { CL_R, CL_SIGNED_INT8 }, PIPE_FORMAT_R8_SINT },
  82       { { CL_RG, CL_SIGNED_INT8 }, PIPE_FORMAT_R8G8_SINT },
  83       { { CL_RGB, CL_SIGNED_INT8 }, PIPE_FORMAT_R8G8B8_SINT },
  84       { { CL_RGBA, CL_SIGNED_INT8 }, PIPE_FORMAT_R8G8B8A8_SINT },
  85       { { CL_R, CL_UNSIGNED_INT16 }, PIPE_FORMAT_R16_UINT },
  86       { { CL_RG, CL_UNSIGNED_INT16 }, PIPE_FORMAT_R16G16_UINT },
  87       { { CL_RGB, CL_UNSIGNED_INT16 }, PIPE_FORMAT_R16G16B16_UINT },
  88       { { CL_RGBA, CL_UNSIGNED_INT16 }, PIPE_FORMAT_R16G16B16A16_UINT },
  89       { { CL_R, CL_SIGNED_INT16 }, PIPE_FORMAT_R16_SINT },
  90       { { CL_RG, CL_SIGNED_INT16 }, PIPE_FORMAT_R16G16_SINT },
  91       { { CL_RGB, CL_SIGNED_INT16 }, PIPE_FORMAT_R16G16B16_SINT },
  92       { { CL_RGBA, CL_SIGNED_INT16 }, PIPE_FORMAT_R16G16B16A16_SINT },
  93       { { CL_R, CL_UNSIGNED_INT32 }, PIPE_FORMAT_R32_UINT },
  94       { { CL_RG, CL_UNSIGNED_INT32 }, PIPE_FORMAT_R32G32_UINT },
  95       { { CL_RGB, CL_UNSIGNED_INT32 }, PIPE_FORMAT_R32G32B32_UINT },
  96       { { CL_RGBA, CL_UNSIGNED_INT32 }, PIPE_FORMAT_R32G32B32A32_UINT },
  97       { { CL_R, CL_SIGNED_INT32 }, PIPE_FORMAT_R32_SINT },
  98       { { CL_RG, CL_SIGNED_INT32 }, PIPE_FORMAT_R32G32_SINT },
  99       { { CL_RGB, CL_SIGNED_INT32 }, PIPE_FORMAT_R32G32B32_SINT },
 100       { { CL_RGBA, CL_SIGNED_INT32 }, PIPE_FORMAT_R32G32B32A32_SINT },
 101       { { CL_A, CL_UNSIGNED_INT8 }, PIPE_FORMAT_A8_UINT },
 102       { { CL_INTENSITY, CL_UNSIGNED_INT8 }, PIPE_FORMAT_I8_UINT },
 103       { { CL_LUMINANCE, CL_UNSIGNED_INT8 }, PIPE_FORMAT_L8_UINT },
 104       { { CL_A, CL_SIGNED_INT8 }, PIPE_FORMAT_A8_SINT },
 105       { { CL_INTENSITY, CL_SIGNED_INT8 }, PIPE_FORMAT_I8_SINT },
 106       { { CL_LUMINANCE, CL_SIGNED_INT8 }, PIPE_FORMAT_L8_SINT },
 107       { { CL_A, CL_UNSIGNED_INT16 }, PIPE_FORMAT_A16_UINT },
 108       { { CL_INTENSITY, CL_UNSIGNED_INT16 }, PIPE_FORMAT_I16_UINT },
 109       { { CL_LUMINANCE, CL_UNSIGNED_INT16 }, PIPE_FORMAT_L16_UINT },
 110       { { CL_A, CL_SIGNED_INT16 }, PIPE_FORMAT_A16_SINT },
 111       { { CL_INTENSITY, CL_SIGNED_INT16 }, PIPE_FORMAT_I16_SINT },
 112       { { CL_LUMINANCE, CL_SIGNED_INT16 }, PIPE_FORMAT_L16_SINT },
 113       { { CL_A, CL_UNSIGNED_INT32 }, PIPE_FORMAT_A32_UINT },
 114       { { CL_INTENSITY, CL_UNSIGNED_INT32 }, PIPE_FORMAT_I32_UINT },
 115       { { CL_LUMINANCE, CL_UNSIGNED_INT32 }, PIPE_FORMAT_L32_UINT },
 116       { { CL_A, CL_SIGNED_INT32 }, PIPE_FORMAT_A32_SINT },
 117       { { CL_INTENSITY, CL_SIGNED_INT32 }, PIPE_FORMAT_I32_SINT },
 118       { { CL_LUMINANCE, CL_SIGNED_INT32 }, PIPE_FORMAT_L32_SINT }
 119    };
 120
 121    pipe_texture_target
 122    translate_target(cl_mem_object_type type) {
 123       switch (type) {
 124       case CL_MEM_OBJECT_BUFFER:
 125          return PIPE_BUFFER;
 126       case CL_MEM_OBJECT_IMAGE2D:
 127          return PIPE_TEXTURE_2D;
 128       case CL_MEM_OBJECT_IMAGE3D:
 129          return PIPE_TEXTURE_3D;
 130       default:
 131          throw error(CL_INVALID_VALUE);
 132       }
 133    }
 134
 135    pipe_format
 136    translate_format(const cl_image_format &format) {
 137       auto it = formats.find(format);
 138
 139       if (it == formats.end())
 140          throw error(CL_IMAGE_FORMAT_NOT_SUPPORTED);
 141
 142       return it->second;
 143    }
 144
 145    std::set<cl_image_format>
 146    supported_formats(const context &ctx, cl_mem_object_type type) {
 147       std::set<cl_image_format> s;
 148       pipe_texture_target target = translate_target(type);
 149       unsigned bindings = (PIPE_BIND_SAMPLER_VIEW |
 150                            PIPE_BIND_COMPUTE_RESOURCE);
 151
 152       for (auto f : formats) {
 153          if (all_of([=](const device &dev) {
 154                   return dev.pipe->is_format_supported(
 155                      dev.pipe, f.second, target, 1, 1, bindings);
 156                }, ctx.devices()))
 157             s.insert(f.first);
 158       }
 159
 160       return s;
 161    }
 162 }