src/intel/isl/isl_format.c

   1 /*
   2  * Copyright 2015 Intel Corporation
   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 (including the next
  12  *  paragraph) shall be included in all copies or substantial portions of the
  13  *  Software.
  14  *
  15  *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  *  THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  *  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  21  *  IN THE SOFTWARE.
  22  */
  23
  24 #include <assert.h>
  25
  26 #include "isl.h"
  27
  28 bool
  29 isl_format_has_uint_channel(enum isl_format fmt)
  30 {
  31    const struct isl_format_layout *fmtl = isl_format_get_layout(fmt);
  32
  33    return fmtl->channels.r.type == ISL_UINT ||
  34           fmtl->channels.g.type == ISL_UINT ||
  35           fmtl->channels.b.type == ISL_UINT ||
  36           fmtl->channels.a.type == ISL_UINT ||
  37           fmtl->channels.l.type == ISL_UINT ||
  38           fmtl->channels.i.type == ISL_UINT ||
  39           fmtl->channels.p.type == ISL_UINT;
  40 }
  41
  42 bool
  43 isl_format_has_sint_channel(enum isl_format fmt)
  44 {
  45    const struct isl_format_layout *fmtl = isl_format_get_layout(fmt);
  46
  47    return fmtl->channels.r.type == ISL_SINT ||
  48           fmtl->channels.g.type == ISL_SINT ||
  49           fmtl->channels.b.type == ISL_SINT ||
  50           fmtl->channels.a.type == ISL_SINT ||
  51           fmtl->channels.l.type == ISL_SINT ||
  52           fmtl->channels.i.type == ISL_SINT ||
  53           fmtl->channels.p.type == ISL_SINT;
  54 }
  55
  56 enum isl_format
  57 isl_format_rgb_to_rgba(enum isl_format rgb)
  58 {
  59    assert(isl_format_is_rgb(rgb));
  60
  61    switch (rgb) {
  62    case ISL_FORMAT_R32G32B32_FLOAT:    return ISL_FORMAT_R32G32B32A32_FLOAT;
  63    case ISL_FORMAT_R32G32B32_SINT:     return ISL_FORMAT_R32G32B32A32_SINT;
  64    case ISL_FORMAT_R32G32B32_UINT:     return ISL_FORMAT_R32G32B32A32_UINT;
  65    case ISL_FORMAT_R32G32B32_UNORM:    return ISL_FORMAT_R32G32B32A32_UNORM;
  66    case ISL_FORMAT_R32G32B32_SNORM:    return ISL_FORMAT_R32G32B32A32_SNORM;
  67    case ISL_FORMAT_R32G32B32_SSCALED:  return ISL_FORMAT_R32G32B32A32_SSCALED;
  68    case ISL_FORMAT_R32G32B32_USCALED:  return ISL_FORMAT_R32G32B32A32_USCALED;
  69    case ISL_FORMAT_R32G32B32_SFIXED:   return ISL_FORMAT_R32G32B32A32_SFIXED;
  70    case ISL_FORMAT_R8G8B8_UNORM:       return ISL_FORMAT_R8G8B8A8_UNORM;
  71    case ISL_FORMAT_R8G8B8_SNORM:       return ISL_FORMAT_R8G8B8A8_SNORM;
  72    case ISL_FORMAT_R8G8B8_SSCALED:     return ISL_FORMAT_R8G8B8A8_SSCALED;
  73    case ISL_FORMAT_R8G8B8_USCALED:     return ISL_FORMAT_R8G8B8A8_USCALED;
  74    case ISL_FORMAT_R16G16B16_FLOAT:    return ISL_FORMAT_R16G16B16A16_FLOAT;
  75    case ISL_FORMAT_R16G16B16_UNORM:    return ISL_FORMAT_R16G16B16A16_UNORM;
  76    case ISL_FORMAT_R16G16B16_SNORM:    return ISL_FORMAT_R16G16B16A16_SNORM;
  77    case ISL_FORMAT_R16G16B16_SSCALED:  return ISL_FORMAT_R16G16B16A16_SSCALED;
  78    case ISL_FORMAT_R16G16B16_USCALED:  return ISL_FORMAT_R16G16B16A16_USCALED;
  79    case ISL_FORMAT_R8G8B8_UNORM_SRGB:  return ISL_FORMAT_R8G8B8A8_UNORM_SRGB;
  80    case ISL_FORMAT_R16G16B16_UINT:     return ISL_FORMAT_R16G16B16A16_UINT;
  81    case ISL_FORMAT_R16G16B16_SINT:     return ISL_FORMAT_R16G16B16A16_SINT;
  82    case ISL_FORMAT_R8G8B8_UINT:        return ISL_FORMAT_R8G8B8A8_UINT;
  83    case ISL_FORMAT_R8G8B8_SINT:        return ISL_FORMAT_R8G8B8A8_SINT;
  84    default:
  85       return ISL_FORMAT_UNSUPPORTED;
  86    }
  87 }
  88
  89 enum isl_format
  90 isl_format_rgb_to_rgbx(enum isl_format rgb)
  91 {
  92    assert(isl_format_is_rgb(rgb));
  93
  94    switch (rgb) {
  95    case ISL_FORMAT_R32G32B32_FLOAT:
  96       return ISL_FORMAT_R32G32B32X32_FLOAT;
  97    case ISL_FORMAT_R16G16B16_UNORM:
  98       return ISL_FORMAT_R16G16B16X16_UNORM;
  99    case ISL_FORMAT_R16G16B16_FLOAT:
 100       return ISL_FORMAT_R16G16B16X16_FLOAT;
 101    case ISL_FORMAT_R8G8B8_UNORM:
 102       return ISL_FORMAT_R8G8B8X8_UNORM;
 103    case ISL_FORMAT_R8G8B8_UNORM_SRGB:
 104       return ISL_FORMAT_R8G8B8X8_UNORM_SRGB;
 105    default:
 106       return ISL_FORMAT_UNSUPPORTED;
 107    }
 108 }