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/*
* Copyright 2015 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#include <assert.h>
#include "isl.h"
static inline bool
isl_format_has_channel_type(enum isl_format fmt, enum isl_base_type type)
{
const struct isl_format_layout *fmtl = isl_format_get_layout(fmt);
return fmtl->channels.r.type == type ||
fmtl->channels.g.type == type ||
fmtl->channels.b.type == type ||
fmtl->channels.a.type == type ||
fmtl->channels.l.type == type ||
fmtl->channels.i.type == type ||
fmtl->channels.p.type == type;
}
bool
isl_format_has_unorm_channel(enum isl_format fmt)
{
return isl_format_has_channel_type(fmt, ISL_UNORM);
}
bool
isl_format_has_snorm_channel(enum isl_format fmt)
{
return isl_format_has_channel_type(fmt, ISL_SNORM);
}
bool
isl_format_has_ufloat_channel(enum isl_format fmt)
{
return isl_format_has_channel_type(fmt, ISL_UFLOAT);
}
bool
isl_format_has_sfloat_channel(enum isl_format fmt)
{
return isl_format_has_channel_type(fmt, ISL_SFLOAT);
}
bool
isl_format_has_uint_channel(enum isl_format fmt)
{
return isl_format_has_channel_type(fmt, ISL_UINT);
}
bool
isl_format_has_sint_channel(enum isl_format fmt)
{
return isl_format_has_channel_type(fmt, ISL_SINT);
}
unsigned
isl_format_get_num_channels(enum isl_format fmt)
{
const struct isl_format_layout *fmtl = isl_format_get_layout(fmt);
assert(fmtl->channels.p.bits == 0);
return (fmtl->channels.r.bits > 0) +
(fmtl->channels.g.bits > 0) +
(fmtl->channels.b.bits > 0) +
(fmtl->channels.a.bits > 0) +
(fmtl->channels.l.bits > 0) +
(fmtl->channels.i.bits > 0);
}
enum isl_format
isl_format_rgb_to_rgba(enum isl_format rgb)
{
assert(isl_format_is_rgb(rgb));
switch (rgb) {
case ISL_FORMAT_R32G32B32_FLOAT: return ISL_FORMAT_R32G32B32A32_FLOAT;
case ISL_FORMAT_R32G32B32_SINT: return ISL_FORMAT_R32G32B32A32_SINT;
case ISL_FORMAT_R32G32B32_UINT: return ISL_FORMAT_R32G32B32A32_UINT;
case ISL_FORMAT_R32G32B32_UNORM: return ISL_FORMAT_R32G32B32A32_UNORM;
case ISL_FORMAT_R32G32B32_SNORM: return ISL_FORMAT_R32G32B32A32_SNORM;
case ISL_FORMAT_R32G32B32_SSCALED: return ISL_FORMAT_R32G32B32A32_SSCALED;
case ISL_FORMAT_R32G32B32_USCALED: return ISL_FORMAT_R32G32B32A32_USCALED;
case ISL_FORMAT_R32G32B32_SFIXED: return ISL_FORMAT_R32G32B32A32_SFIXED;
case ISL_FORMAT_R8G8B8_UNORM: return ISL_FORMAT_R8G8B8A8_UNORM;
case ISL_FORMAT_R8G8B8_SNORM: return ISL_FORMAT_R8G8B8A8_SNORM;
case ISL_FORMAT_R8G8B8_SSCALED: return ISL_FORMAT_R8G8B8A8_SSCALED;
case ISL_FORMAT_R8G8B8_USCALED: return ISL_FORMAT_R8G8B8A8_USCALED;
case ISL_FORMAT_R16G16B16_FLOAT: return ISL_FORMAT_R16G16B16A16_FLOAT;
case ISL_FORMAT_R16G16B16_UNORM: return ISL_FORMAT_R16G16B16A16_UNORM;
case ISL_FORMAT_R16G16B16_SNORM: return ISL_FORMAT_R16G16B16A16_SNORM;
case ISL_FORMAT_R16G16B16_SSCALED: return ISL_FORMAT_R16G16B16A16_SSCALED;
case ISL_FORMAT_R16G16B16_USCALED: return ISL_FORMAT_R16G16B16A16_USCALED;
case ISL_FORMAT_R8G8B8_UNORM_SRGB: return ISL_FORMAT_R8G8B8A8_UNORM_SRGB;
case ISL_FORMAT_R16G16B16_UINT: return ISL_FORMAT_R16G16B16A16_UINT;
case ISL_FORMAT_R16G16B16_SINT: return ISL_FORMAT_R16G16B16A16_SINT;
case ISL_FORMAT_R8G8B8_UINT: return ISL_FORMAT_R8G8B8A8_UINT;
case ISL_FORMAT_R8G8B8_SINT: return ISL_FORMAT_R8G8B8A8_SINT;
default:
return ISL_FORMAT_UNSUPPORTED;
}
}
enum isl_format
isl_format_rgb_to_rgbx(enum isl_format rgb)
{
assert(isl_format_is_rgb(rgb));
switch (rgb) {
case ISL_FORMAT_R32G32B32_FLOAT:
return ISL_FORMAT_R32G32B32X32_FLOAT;
case ISL_FORMAT_R16G16B16_UNORM:
return ISL_FORMAT_R16G16B16X16_UNORM;
case ISL_FORMAT_R16G16B16_FLOAT:
return ISL_FORMAT_R16G16B16X16_FLOAT;
case ISL_FORMAT_R8G8B8_UNORM:
return ISL_FORMAT_R8G8B8X8_UNORM;
case ISL_FORMAT_R8G8B8_UNORM_SRGB:
return ISL_FORMAT_R8G8B8X8_UNORM_SRGB;
default:
return ISL_FORMAT_UNSUPPORTED;
}
}
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