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/* Copyright 2015 Egor Yusov
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* 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 OF ANY PROPRIETARY RIGHTS.
*
* In no event and under no legal theory, whether in tort (including negligence),
* contract, or otherwise, unless required by applicable law (such as deliberate
* and grossly negligent acts) or agreed to in writing, shall any Contributor be
* liable for any damages, including any direct, indirect, special, incidental,
* or consequential damages of any character arising as a result of this License or
* out of the use or inability to use the software (including but not limited to damages
* for loss of goodwill, work stoppage, computer failure or malfunction, or any and
* all other commercial damages or losses), even if such Contributor has been advised
* of the possibility of such damages.
*/
#include "pch.h"
#include "TextureViewParser.h"
#include "TextureParser.h"
#include "SamplerParser.h"
#include "GraphicsUtilities.h"
namespace Diligent
{
const Char* TextureViewParser::TextureViewLibName = "TextureView";
TextureViewParser::TextureViewParser( TextureParser *pTexParser,
SamplerParser *pSamplerParser,
IRenderDevice *pRenderDevice, lua_State *L ) :
EngineObjectParserCommon<ITextureView>( pRenderDevice, L, TextureViewLibName ),
m_TextureLibMetatableName(pTexParser->GetMetatableName()),
m_SamplerLibMetatableName( pSamplerParser->GetMetatableName() ),
m_CreateViewBinding( this, L, m_TextureLibMetatableName.c_str(), "CreateView", &TextureViewParser::CreateView ),
m_GetDefaultViewBinding( this, L, m_TextureLibMetatableName.c_str(), "GetDefaultView", &TextureViewParser::GetDefaultView ),
m_SetSamplerBinding( this, L, m_MetatableRegistryName.c_str(), "SetSampler", &TextureViewParser::SetSampler ),
m_ViewTypeParser( 0, "ViewType", m_ViewTypeEnumMapping )
{
DEFINE_BUFFERED_STRING_BINDER( m_Bindings, STexViewDescWrapper, Name, NameBuffer )
DEFINE_ENUM_ELEMENT_MAPPING( m_ViewTypeEnumMapping, TEXTURE_VIEW_SHADER_RESOURCE );
DEFINE_ENUM_ELEMENT_MAPPING( m_ViewTypeEnumMapping, TEXTURE_VIEW_RENDER_TARGET );
DEFINE_ENUM_ELEMENT_MAPPING( m_ViewTypeEnumMapping, TEXTURE_VIEW_DEPTH_STENCIL );
DEFINE_ENUM_ELEMENT_MAPPING( m_ViewTypeEnumMapping, TEXTURE_VIEW_UNORDERED_ACCESS );
VERIFY( m_ViewTypeEnumMapping.m_Str2ValMap.size() == TEXTURE_VIEW_NUM_VIEWS - 1,
"Unexpected map size. Did you update TEXTURE_VIEW_TYPE enum?" );
VERIFY( m_ViewTypeEnumMapping.m_Val2StrMap.size() == TEXTURE_VIEW_NUM_VIEWS - 1,
"Unexpected map size. Did you update TEXTURE_VIEW_TYPE enum?" );
DEFINE_ENUM_BINDER( m_Bindings, STexViewDescWrapper, ViewType, TEXTURE_VIEW_TYPE, m_ViewTypeEnumMapping );
DEFINE_ENUM_BINDER( m_Bindings, STexViewDescWrapper, TextureType, TEXTURE_TYPE, m_TexTypeEnumMapping );
DEFINE_ENUM_BINDER( m_Bindings, STexViewDescWrapper, Format, TEXTURE_FORMAT, m_TexFormatEnumMapping );
DEFINE_BINDER( m_Bindings, STexViewDescWrapper, MostDetailedMip, Uint32, Validator<Uint32>( "MostDetailedMip", 0, 16384 ) );
DEFINE_BINDER( m_Bindings, STexViewDescWrapper, NumMipLevels, Uint32, Validator<Uint32>( "NumMipLevels", 1, 16384 ) );
// The following two members are in enum
DEFINE_BINDER( m_Bindings, STexViewDescWrapper, FirstArraySlice, Uint32, Validator<Uint32>( "FirstArraySlice", 0, 16384 ) );
DEFINE_BINDER( m_Bindings, STexViewDescWrapper, FirstDepthSlice, Uint32, Validator<Uint32>( "FirstDepthSlice", 0, 16384 ) );
// The following two members are in enum
DEFINE_BINDER( m_Bindings, STexViewDescWrapper, NumArraySlices, Uint32, Validator<Uint32>( "NumArraySlices", 0, 16384 ) );
DEFINE_BINDER( m_Bindings, STexViewDescWrapper, NumDepthSlices, Uint32, Validator<Uint32>( "NumDepthSlices", 0, 16384 ) );
DEFINE_ENUM_ELEMENT_MAPPING( m_UAVAccessFlagEnumMapping, UAV_ACCESS_FLAG_READ );
DEFINE_ENUM_ELEMENT_MAPPING( m_UAVAccessFlagEnumMapping, UAV_ACCESS_FLAG_WRITE );
DEFINE_ENUM_ELEMENT_MAPPING( m_UAVAccessFlagEnumMapping, UAV_ACCESS_FLAG_READ_WRITE );
DEFINE_FLAGS_BINDER( m_Bindings, STexViewDescWrapper, AccessFlags, UAV_ACCESS_FLAG, m_UAVAccessFlagEnumMapping );
};
void TextureViewParser::CreateObj( lua_State *L )
{
INIT_LUA_STACK_TRACKING(L);
auto *pTexture = *GetUserData<ITexture**>( L, 1, m_TextureLibMetatableName.c_str() );
STexViewDescWrapper TextureViewDesc;
ParseLuaTable( L, 2, &TextureViewDesc, m_Bindings );
CHECK_LUA_STACK_HEIGHT();
auto ppTextureView = reinterpret_cast<ITextureView**>(lua_newuserdata( L, sizeof( ITextureView* ) ));
*ppTextureView = nullptr;
pTexture->CreateView( TextureViewDesc, ppTextureView );
if( *ppTextureView == nullptr )
SCRIPT_PARSING_ERROR(L, "Failed to create texture view")
CHECK_LUA_STACK_HEIGHT( +1 );
}
int TextureViewParser::CreateView( lua_State *L )
{
// Note that LuaCreate is a static function.
// However, this pointer to the TextureViewParser object
// is stored in the upvalue. So LuaCreate will call
// TextureViewParser::CreateObj()
return LuaCreate(L);
}
int TextureViewParser::GetDefaultView( lua_State *L )
{
INIT_LUA_STACK_TRACKING( L );
// Texture should be the first argument
auto *pTexture = *GetUserData<ITexture**>( L, 1, m_TextureLibMetatableName.c_str() );
// View type should be the second argument
TEXTURE_VIEW_TYPE ViewType;
m_ViewTypeParser.SetValue( L, 2, &ViewType );
auto pView = pTexture->GetDefaultView( ViewType );
if( !pView )
SCRIPT_PARSING_ERROR( L, "Failed to get default texture view of type ", GetTexViewTypeLiteralName( ViewType ) );
// Push existing object
PushObject(L, pView);
CHECK_LUA_STACK_HEIGHT( +1 );
// Returning one value to Lua
return 1;
}
int TextureViewParser::SetSampler( lua_State *L )
{
auto *pTexView = *GetUserData<ITextureView**>( L, 1, m_MetatableRegistryName.c_str() );
auto *pSampler = *GetUserData<ISampler**>( L, 2, m_SamplerLibMetatableName.c_str() );
pTexView->SetSampler( pSampler );
// Returning nothing
return 0;
}
}
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