anki-3d-engine/AnKi/Shaders/Include/Common.h

// Copyright (C) 2009-2021, Panagiotis Christopoulos Charitos and contributors.
// All rights reserved.
// Code licensed under the BSD License.
// http://www.anki3d.org/LICENSE

#pragma once

//
// Macros & functions C++
//
#if defined(__cplusplus)

#	include <AnKi/Math.h>

#	define ANKI_BEGIN_NAMESPACE \
		namespace anki \
		{
#	define ANKI_END_NAMESPACE }
#	define ANKI_SHADER_FUNC_INLINE inline

#	define ANKI_SHADER_INOUT(type_) type_&
#	define ANKI_SHADER_IN(type_) const type_&
#	define ANKI_SHADER_OUT(type_) type_&

#	define ANKI_SHADER_STATIC_ASSERT(cond_) static_assert(cond_, "See file")

#	define ANKI_SIZEOF(x) sizeof(x)

ANKI_BEGIN_NAMESPACE
template<typename T>
inline F32 dot(const T& a, const T& b)
{
	return a.dot(b);
}
ANKI_END_NAMESPACE

#	define ANKI_CPP_CODE(x) x

//
// Macros & functions GLSL
//
#else
#	define x() x
#	define y() y
#	define z() z
#	define w() w

#	define xyz() xyz

#	define ANKI_BEGIN_NAMESPACE
#	define ANKI_END_NAMESPACE
#	define ANKI_SHADER_FUNC_INLINE

#	define ANKI_SHADER_INOUT(type_) inout type_
#	define ANKI_SHADER_IN(type_) in type_
#	define ANKI_SHADER_OUT(type_) out type_

#	define ANKI_SHADER_STATIC_ASSERT(cond_)

#	define ANKI_CPP_CODE(x)
#endif

//
// Various
//
ANKI_BEGIN_NAMESPACE

/// The renderer will group drawcalls into instances up to this number.
const U32 MAX_INSTANCE_COUNT = 64u;
const U32 MAX_LOD_COUNT = 3u;

ANKI_END_NAMESPACE