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/**
* @file llmaterial.cpp
* @brief Material definition
*
* $LicenseInfo:firstyear=2006&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#include "linden_common.h"
#include "llmaterial.h"
/**
* Materials cap parameters
*/
#define MATERIALS_CAP_NORMAL_MAP_FIELD "NormMap"
#define MATERIALS_CAP_NORMAL_MAP_OFFSET_X_FIELD "NormOffsetX"
#define MATERIALS_CAP_NORMAL_MAP_OFFSET_Y_FIELD "NormOffsetY"
#define MATERIALS_CAP_NORMAL_MAP_REPEAT_X_FIELD "NormRepeatX"
#define MATERIALS_CAP_NORMAL_MAP_REPEAT_Y_FIELD "NormRepeatY"
#define MATERIALS_CAP_NORMAL_MAP_ROTATION_FIELD "NormRotation"
#define MATERIALS_CAP_SPECULAR_MAP_FIELD "SpecMap"
#define MATERIALS_CAP_SPECULAR_MAP_OFFSET_X_FIELD "SpecOffsetX"
#define MATERIALS_CAP_SPECULAR_MAP_OFFSET_Y_FIELD "SpecOffsetY"
#define MATERIALS_CAP_SPECULAR_MAP_REPEAT_X_FIELD "SpecRepeatX"
#define MATERIALS_CAP_SPECULAR_MAP_REPEAT_Y_FIELD "SpecRepeatY"
#define MATERIALS_CAP_SPECULAR_MAP_ROTATION_FIELD "SpecRotation"
#define MATERIALS_CAP_SPECULAR_COLOR_FIELD "SpecColor"
#define MATERIALS_CAP_SPECULAR_EXP_FIELD "SpecExp"
#define MATERIALS_CAP_ENV_INTENSITY_FIELD "EnvIntensity"
#define MATERIALS_CAP_ALPHA_MASK_CUTOFF_FIELD "AlphaMaskCutoff"
#define MATERIALS_CAP_DIFFUSE_ALPHA_MODE_FIELD "DiffuseAlphaMode"
/**
* Materials constants
*/
const LLColor4U MATERIALS_DEFAULT_SPECULAR_COLOR = LLColor4U(255, 255, 255, 255);
const U8 MATERIALS_DEFAULT_SPECULAR_EXP = 128;
const U8 MATERIALS_DEFAULT_ENV_INTENSITY = 128;
const U8 MATERIALS_DEFAULT_DIFFUSE_ALPHA_MODE = 0;
const U8 MATERIALS_DEFAULT_ALPHA_MASK_CUTOFF = 128;
const F32 MATERIALS_MULTIPLIER = 10000.f;
/**
* Helper functions
*/
template<typename T> T getMaterialField(const LLSD& data, const std::string& field, const LLSD::Type field_type)
{
if ( (data.has(field)) && (field_type == data[field].type()) )
{
return (T)data[field];
}
llerrs << "Missing or mistyped field '" << field << "' in material definition" << llendl;
return (T)LLSD();
}
// GCC didn't like the generic form above for some reason
template<> LLUUID getMaterialField(const LLSD& data, const std::string& field, const LLSD::Type field_type)
{
if ( (data.has(field)) && (field_type == data[field].type()) )
{
return data[field].asUUID();
}
llerrs << "Missing or mistyped field '" << field << "' in material definition" << llendl;
return LLUUID::null;
}
/**
* LLMaterial class
*/
const LLMaterial LLMaterial::null;
LLMaterial::LLMaterial()
: mSpecularLightColor(MATERIALS_DEFAULT_SPECULAR_COLOR)
, mSpecularLightExponent(MATERIALS_DEFAULT_SPECULAR_EXP)
, mEnvironmentIntensity(MATERIALS_DEFAULT_ENV_INTENSITY)
, mDiffuseAlphaMode(MATERIALS_DEFAULT_DIFFUSE_ALPHA_MODE)
, mAlphaMaskCutoff(MATERIALS_DEFAULT_ALPHA_MASK_CUTOFF)
{
}
LLMaterial::LLMaterial(const LLSD& material_data)
{
fromLLSD(material_data);
}
LLSD LLMaterial::asLLSD() const
{
LLSD material_data;
material_data[MATERIALS_CAP_NORMAL_MAP_FIELD] = mNormalID;
material_data[MATERIALS_CAP_NORMAL_MAP_OFFSET_X_FIELD] = llround(mNormalOffsetX * MATERIALS_MULTIPLIER);
material_data[MATERIALS_CAP_NORMAL_MAP_OFFSET_Y_FIELD] = llround(mNormalOffsetY * MATERIALS_MULTIPLIER);
material_data[MATERIALS_CAP_NORMAL_MAP_REPEAT_X_FIELD] = llround(mNormalRepeatX * MATERIALS_MULTIPLIER);
material_data[MATERIALS_CAP_NORMAL_MAP_REPEAT_Y_FIELD] = llround(mNormalRepeatY * MATERIALS_MULTIPLIER);
material_data[MATERIALS_CAP_NORMAL_MAP_ROTATION_FIELD] = llround(mNormalRotation * MATERIALS_MULTIPLIER);
material_data[MATERIALS_CAP_SPECULAR_MAP_FIELD] = mSpecularID;
material_data[MATERIALS_CAP_SPECULAR_MAP_OFFSET_X_FIELD] = llround(mSpecularOffsetX * MATERIALS_MULTIPLIER);
material_data[MATERIALS_CAP_SPECULAR_MAP_OFFSET_Y_FIELD] = llround(mSpecularOffsetY * MATERIALS_MULTIPLIER);
material_data[MATERIALS_CAP_SPECULAR_MAP_REPEAT_X_FIELD] = llround(mSpecularRepeatX * MATERIALS_MULTIPLIER);
material_data[MATERIALS_CAP_SPECULAR_MAP_REPEAT_Y_FIELD] = llround(mSpecularRepeatY * MATERIALS_MULTIPLIER);
material_data[MATERIALS_CAP_SPECULAR_MAP_ROTATION_FIELD] = llround(mSpecularRotation * MATERIALS_MULTIPLIER);
material_data[MATERIALS_CAP_SPECULAR_COLOR_FIELD] = mSpecularLightColor.getValue();
material_data[MATERIALS_CAP_SPECULAR_EXP_FIELD] = mSpecularLightExponent;
material_data[MATERIALS_CAP_ENV_INTENSITY_FIELD] = mEnvironmentIntensity;
material_data[MATERIALS_CAP_DIFFUSE_ALPHA_MODE_FIELD] = mDiffuseAlphaMode;
material_data[MATERIALS_CAP_ALPHA_MASK_CUTOFF_FIELD] = mAlphaMaskCutoff;
return material_data;
}
void LLMaterial::fromLLSD(const LLSD& material_data)
{
mNormalID = getMaterialField<LLSD::UUID>(material_data, MATERIALS_CAP_NORMAL_MAP_FIELD, LLSD::TypeUUID);
mNormalOffsetX = (F32)getMaterialField<LLSD::Integer>(material_data, MATERIALS_CAP_NORMAL_MAP_OFFSET_X_FIELD, LLSD::TypeInteger) / MATERIALS_MULTIPLIER;
mNormalOffsetY = (F32)getMaterialField<LLSD::Integer>(material_data, MATERIALS_CAP_NORMAL_MAP_OFFSET_Y_FIELD, LLSD::TypeInteger) / MATERIALS_MULTIPLIER;
mNormalRepeatX = (F32)getMaterialField<LLSD::Integer>(material_data, MATERIALS_CAP_NORMAL_MAP_REPEAT_X_FIELD, LLSD::TypeInteger) / MATERIALS_MULTIPLIER;
mNormalRepeatY = (F32)getMaterialField<LLSD::Integer>(material_data, MATERIALS_CAP_NORMAL_MAP_REPEAT_Y_FIELD, LLSD::TypeInteger) / MATERIALS_MULTIPLIER;
mNormalRotation = (F32)getMaterialField<LLSD::Integer>(material_data, MATERIALS_CAP_NORMAL_MAP_ROTATION_FIELD, LLSD::TypeInteger) / MATERIALS_MULTIPLIER;
mSpecularID = getMaterialField<LLSD::UUID>(material_data, MATERIALS_CAP_SPECULAR_MAP_FIELD, LLSD::TypeUUID);
mSpecularOffsetX = (F32)getMaterialField<LLSD::Integer>(material_data, MATERIALS_CAP_SPECULAR_MAP_OFFSET_X_FIELD, LLSD::TypeInteger) / MATERIALS_MULTIPLIER;
mSpecularOffsetY = (F32)getMaterialField<LLSD::Integer>(material_data, MATERIALS_CAP_SPECULAR_MAP_OFFSET_Y_FIELD, LLSD::TypeInteger) / MATERIALS_MULTIPLIER;
mSpecularRepeatX = (F32)getMaterialField<LLSD::Integer>(material_data, MATERIALS_CAP_SPECULAR_MAP_REPEAT_X_FIELD, LLSD::TypeInteger) / MATERIALS_MULTIPLIER;
mSpecularRepeatY = (F32)getMaterialField<LLSD::Integer>(material_data, MATERIALS_CAP_SPECULAR_MAP_REPEAT_Y_FIELD, LLSD::TypeInteger) / MATERIALS_MULTIPLIER;
mSpecularRotation = (F32)getMaterialField<LLSD::Integer>(material_data, MATERIALS_CAP_SPECULAR_MAP_ROTATION_FIELD, LLSD::TypeInteger) / MATERIALS_MULTIPLIER;
mSpecularLightColor.setValue(getMaterialField<LLSD>(material_data, MATERIALS_CAP_SPECULAR_COLOR_FIELD, LLSD::TypeArray));
mSpecularLightExponent = (U8)getMaterialField<LLSD::Integer>(material_data, MATERIALS_CAP_SPECULAR_EXP_FIELD, LLSD::TypeInteger);
mEnvironmentIntensity = (U8)getMaterialField<LLSD::Integer>(material_data, MATERIALS_CAP_ENV_INTENSITY_FIELD, LLSD::TypeInteger);
mDiffuseAlphaMode = (U8)getMaterialField<LLSD::Integer>(material_data, MATERIALS_CAP_DIFFUSE_ALPHA_MODE_FIELD, LLSD::TypeInteger);
mAlphaMaskCutoff = (U8)getMaterialField<LLSD::Integer>(material_data, MATERIALS_CAP_ALPHA_MASK_CUTOFF_FIELD, LLSD::TypeInteger);
}
bool LLMaterial::isNull() const
{
// *TODO: find a better way of defining a 'null' material?
return
(mNormalID.isNull()) && (.0f == mNormalOffsetX) && (.0f == mNormalOffsetY) && (.0f == mNormalRepeatX) && (.0f == mNormalRepeatY) &&
(mSpecularID.isNull()) && (.0f == mSpecularOffsetX) && (.0f == mSpecularOffsetY) && (.0f == mSpecularRepeatX) && (.0f == mSpecularRepeatY);
}
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