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Diffstat (limited to 'indra/llprimitive/llmaterial.cpp')
| -rw-r--r-- | indra/llprimitive/llmaterial.cpp | 227 |
1 files changed, 227 insertions, 0 deletions
diff --git a/indra/llprimitive/llmaterial.cpp b/indra/llprimitive/llmaterial.cpp new file mode 100644 index 0000000000..cf4c645cfd --- /dev/null +++ b/indra/llprimitive/llmaterial.cpp @@ -0,0 +1,227 @@ +/** + * @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" + +const LLColor4U LLMaterial::DEFAULT_SPECULAR_LIGHT_COLOR(255,255,255,255); + +/** + * Materials constants + */ + +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() + : mNormalOffsetX(0.0f) + , mNormalOffsetY(0.0f) + , mNormalRepeatX(1.0f) + , mNormalRepeatY(1.0f) + , mNormalRotation(0.0f) + , mSpecularOffsetX(0.0f) + , mSpecularOffsetY(0.0f) + , mSpecularRepeatX(1.0f) + , mSpecularRepeatY(1.0f) + , mSpecularRotation(0.0f) + , mSpecularLightColor(LLMaterial::DEFAULT_SPECULAR_LIGHT_COLOR) + , mSpecularLightExponent(LLMaterial::DEFAULT_SPECULAR_LIGHT_EXPONENT) + , mEnvironmentIntensity(LLMaterial::DEFAULT_ENV_INTENSITY) + , mDiffuseAlphaMode(LLMaterial::DIFFUSE_ALPHA_MODE_BLEND) + , mAlphaMaskCutoff(0) +{ +} + +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 +{ + return (*this == null); +} + +bool LLMaterial::operator == (const LLMaterial& rhs) const +{ + return + (mNormalID == rhs.mNormalID) && (mNormalOffsetX == rhs.mNormalOffsetX) && (mNormalOffsetY == rhs.mNormalOffsetY) && + (mNormalRepeatX == rhs.mNormalRepeatX) && (mNormalRepeatY == rhs.mNormalRepeatY) && (mNormalRotation == rhs.mNormalRotation) && + (mSpecularID == rhs.mSpecularID) && (mSpecularOffsetX == rhs.mSpecularOffsetX) && (mSpecularOffsetY == rhs.mSpecularOffsetY) && + (mSpecularRepeatX == rhs.mSpecularRepeatX) && (mSpecularRepeatY == rhs.mSpecularRepeatY) && (mSpecularRotation == rhs.mSpecularRotation) && + (mSpecularLightColor == rhs.mSpecularLightColor) && (mSpecularLightExponent == rhs.mSpecularLightExponent) && + (mEnvironmentIntensity == rhs.mEnvironmentIntensity) && (mDiffuseAlphaMode == rhs.mDiffuseAlphaMode) && (mAlphaMaskCutoff == rhs.mAlphaMaskCutoff); +} + +bool LLMaterial::operator != (const LLMaterial& rhs) const +{ + return !(*this == rhs); +} + + +U32 LLMaterial::getShaderMask(U32 alpha_mode) +{ //NEVER incorporate this value into the message system -- this function will vary depending on viewer implementation + U32 ret = 0; + + //two least significant bits are "diffuse alpha mode" + if (alpha_mode != DIFFUSE_ALPHA_MODE_DEFAULT) + { + ret = alpha_mode; + } + else + { + ret = getDiffuseAlphaMode(); + } + + llassert(ret < SHADER_COUNT); + + //next bit is whether or not specular map is present + const U32 SPEC_BIT = 0x4; + + if (getSpecularID().notNull()) + { + ret |= SPEC_BIT; + } + + llassert(ret < SHADER_COUNT); + + //next bit is whether or not normal map is present + const U32 NORM_BIT = 0x8; + if (getNormalID().notNull()) + { + ret |= NORM_BIT; + } + + llassert(ret < SHADER_COUNT); + + return ret; +} + + |