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3D PDF: Mesh continuation block

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This commit is contained in:
Jakub Melka
2022-09-23 16:16:43 +02:00
parent bb28ccf42c
commit 0064205b15
2 changed files with 190 additions and 0 deletions
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78
Pdf4QtLib/sources/pdf3d_u3d.h
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@ -395,6 +395,9 @@ public:
uint32_t textureLayerCount = 0;
std::vector<uint32_t> textureCoordDimensions;
uint32_t originalShading = 0;
bool hasDiffuseColors() const { return shadingAttributes & 0x00000001; }
bool hasSpecularColors() const { return shadingAttributes & 0x00000002; }
};
struct BoneJoint
@ -427,6 +430,8 @@ public:
const QString& getMeshName() const;
uint32_t getChainIndex() const;
bool isNormalsExcluded() const { return getMeshAttributes() & 0x00000001; }
/* max mesh description */
uint32_t getMeshAttributes() const;
uint32_t getFaceCount() const;
@ -437,6 +442,7 @@ public:
uint32_t getTextureColorCount() const;
uint32_t getShadingCount() const;
const std::vector<ShadingDescription>& getShadingDescription() const;
const ShadingDescription* getShadingDescriptionItem(uint32_t index) const { return index < m_shadingDescription.size() ? &m_shadingDescription[index] : nullptr; }
/* clod description */
uint32_t getMinimumResolution() const;
@ -496,6 +502,56 @@ private:
std::vector<BoneDescription> m_boneDescription;
};
class PDF3D_U3D_CLODBaseMeshContinuationBlock : public PDF3D_U3D_AbstractBlock
{
public:
static constexpr uint32_t ID = 0xFFFFFF3B;
static PDF3D_U3D_AbstractBlockPtr parse(QByteArray data, QByteArray metaData, PDF3D_U3D* object);
struct BaseCornerInfo
{
uint32_t basePositionIndex = 0; // rBasePositionCount
uint32_t baseNormalIndex = 0; // rBaseNormalCount
uint32_t baseDiffuseColorIndex = 0; // rBaseDiffColorCnt
uint32_t baseSpecularColorIndex = 0; // rBaseSpecColorCnt
std::vector<uint32_t> baseTextureCoordIndex; // rBaseTexCoordCnt
};
struct BaseFace
{
uint32_t m_shadingId = 0; // cShading
std::array<BaseCornerInfo, 3> m_corners = { };
};
const QString& getMeshName() const;
uint32_t getChainIndex() const;
private:
enum Context
{
cShading = 1
};
QString m_meshName;
uint32_t m_chainIndex = 0;
/* base mesh description */
uint32_t m_faceCount = 0;
uint32_t m_positionCount = 0;
uint32_t m_normalCount = 0;
uint32_t m_diffuseColorCount = 0;
uint32_t m_specularColorCount = 0;
uint32_t m_textureColorCount = 0;
std::vector<PDF3D_U3D_Vec3> m_basePositions;
std::vector<PDF3D_U3D_Vec3> m_baseNormals;
std::vector<PDF3D_U3D_Vec4> m_baseDiffuseColors;
std::vector<PDF3D_U3D_Vec4> m_baseSpecularColors;
std::vector<PDF3D_U3D_Vec4> m_baseTextureCoords;
std::vector<BaseFace> m_baseFaces;
};
// -------------------------------------------------------------------------------
// PDF3D_U3D
// -------------------------------------------------------------------------------
@ -510,6 +566,8 @@ public:
static PDF3D_U3D parse(QByteArray data);
const PDF3D_U3D_CLODMeshDeclarationBlock* getCLODMeshDeclarationBlock(const QString& meshName) const;
PDF3D_U3D_AbstractBlockPtr parseBlockWithDeclaration(PDF3D_U3D_DataReader& reader);
private:
@ -518,6 +576,7 @@ private:
struct LoadBlockInfo
{
QString typeName;
bool success = false;
uint32_t blockType = 0;
uint32_t dataSize = 0;
@ -593,6 +652,9 @@ public:
void setData(QByteArray data);
static constexpr uint32_t getRangeContext(uint32_t value) { return value + PDF3D_U3D_Constants::S_STATIC_FULL; }
static constexpr uint32_t getStaticContext(uint32_t value) { return value; }
uint8_t readU8();
uint16_t readU16();
uint32_t readU32();
@ -626,6 +688,22 @@ public:
}
}
template<typename T>
std::vector<T> readVectorFloats32(uint32_t count)
{
std::vector<T> result;
result.reserve(count);
for (uint32_t i = 0; i < count; ++i)
{
T value = T();
readFloats32(value);
result.emplace_back(std::move(value));
}
return result;
}
private:
uint32_t readSymbol(uint32_t context);
uint8_t swapBits8(uint8_t source);