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      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, bindings);
    156                }, ctx.devices()))
    157             s.insert(f.first);
    158       }
    159 
    160       return s;
    161    }
    162 }
    163