// EXTERNAL INCLUDES
#include <dali/devel-api/adaptor-framework/file-stream.h>
+#include <dali/devel-api/adaptor-framework/pixel-buffer.h>
#include <dali/integration-api/debug.h>
+#include <dali/public-api/math/compile-time-math.h>
#include <cstring>
#include <fstream>
-#include "dali/devel-api/adaptor-framework/pixel-buffer.h"
+#include <type_traits>
namespace Dali
{
uint16_t (*mFunc)(uintptr_t&);
};
-const std::string QUAD("quad");
+const char* QUAD("quad");
///@brief Reads a blob from the given stream @a source into @a target, which must have
/// at least @a descriptor.length bytes.
if(descriptor.IsConsecutive())
{
- return !!source.read(reinterpret_cast<char*>(target), descriptor.mLength);
+ return !!source.read(reinterpret_cast<char*>(target), static_cast<std::streamsize>(static_cast<size_t>(descriptor.mLength)));
}
else
{
attribs.push_back({"aNormal", Property::VECTOR3, attribs[0].mNumElements, std::move(buffer)});
}
-void GenerateTangentsWithUvs(MeshDefinition::RawData& raw)
+template<bool useVec3, bool hasUvs, typename T = std::conditional_t<useVec3, Vector3, Vector4>, typename = std::enable_if_t<(std::is_same<T, Vector3>::value || std::is_same<T, Vector4>::value)>>
+bool GenerateTangents(MeshDefinition::RawData& raw)
{
auto& attribs = raw.mAttribs;
- DALI_ASSERT_DEBUG(attribs.size() > 2); // positions, normals, uvs
- IndexProvider getIndex(raw.mIndices.data());
-
- const uint32_t numIndices = raw.mIndices.empty() ? attribs[0].mNumElements : static_cast<uint32_t>(raw.mIndices.size());
-
- auto* positions = reinterpret_cast<const Vector3*>(attribs[0].mData.data());
- auto* uvs = reinterpret_cast<const Vector2*>(attribs[2].mData.data());
-
- std::vector<uint8_t> buffer(attribs[0].mNumElements * sizeof(Vector3));
- auto tangents = reinterpret_cast<Vector3*>(buffer.data());
-
- for(uint32_t i = 0; i < numIndices; i += 3)
+ // Required positions, normals, uvs (if we have). If not, skip generation
+ if(attribs.size() < (2 + static_cast<size_t>(hasUvs)))
{
- uint16_t indices[]{getIndex(), getIndex(), getIndex()};
- Vector3 pos[]{positions[indices[0]], positions[indices[1]], positions[indices[2]]};
- Vector2 uv[]{uvs[indices[0]], uvs[indices[1]], uvs[indices[2]]};
-
- float x0 = pos[1].x - pos[0].x;
- float y0 = pos[1].y - pos[0].y;
- float z0 = pos[1].z - pos[0].z;
+ return false;
+ }
- float x1 = pos[2].x - pos[0].x;
- float y1 = pos[2].y - pos[0].y;
- float z1 = pos[2].z - pos[0].z;
+ std::vector<uint8_t> buffer(attribs[0].mNumElements * sizeof(T));
+ auto tangents = reinterpret_cast<T*>(buffer.data());
- float s0 = uv[1].x - uv[0].x;
- float t0 = uv[1].y - uv[0].y;
+ if constexpr(hasUvs)
+ {
+ IndexProvider getIndex(raw.mIndices.data());
+ const uint32_t numIndices = raw.mIndices.empty() ? attribs[0].mNumElements : static_cast<uint32_t>(raw.mIndices.size());
- float s1 = uv[2].x - uv[0].x;
- float t1 = uv[2].y - uv[0].y;
+ auto* positions = reinterpret_cast<const Vector3*>(attribs[0].mData.data());
+ auto* uvs = reinterpret_cast<const Vector2*>(attribs[2].mData.data());
- float r = 1.f / (s0 * t1 - t0 * s1);
- Vector3 tangent((x0 * t1 - t0 * x1) * r, (y0 * t1 - t0 * y1) * r, (z0 * t1 - t0 * z1) * r);
- tangents[indices[0]] += tangent;
- tangents[indices[1]] += tangent;
- tangents[indices[2]] += tangent;
+ for(uint32_t i = 0; i < numIndices; i += 3)
+ {
+ uint16_t indices[]{getIndex(), getIndex(), getIndex()};
+ Vector3 pos[]{positions[indices[0]], positions[indices[1]], positions[indices[2]]};
+ Vector2 uv[]{uvs[indices[0]], uvs[indices[1]], uvs[indices[2]]};
+
+ float x0 = pos[1].x - pos[0].x;
+ float y0 = pos[1].y - pos[0].y;
+ float z0 = pos[1].z - pos[0].z;
+
+ float x1 = pos[2].x - pos[0].x;
+ float y1 = pos[2].y - pos[0].y;
+ float z1 = pos[2].z - pos[0].z;
+
+ float s0 = uv[1].x - uv[0].x;
+ float t0 = uv[1].y - uv[0].y;
+
+ float s1 = uv[2].x - uv[0].x;
+ float t1 = uv[2].y - uv[0].y;
+
+ float det = (s0 * t1 - t0 * s1);
+ float r = 1.f / ((std::abs(det) < Dali::Epsilon<1000>::value) ? (Dali::Epsilon<1000>::value * (det > 0.0f ? 1.f : -1.f)) : det);
+ Vector3 tangent((x0 * t1 - t0 * x1) * r, (y0 * t1 - t0 * y1) * r, (z0 * t1 - t0 * z1) * r);
+ tangents[indices[0]] += T(tangent);
+ tangents[indices[1]] += T(tangent);
+ tangents[indices[2]] += T(tangent);
+ }
}
auto* normals = reinterpret_cast<const Vector3*>(attribs[1].mData.data());
auto iEnd = normals + attribs[1].mNumElements;
while(normals != iEnd)
{
- *tangents -= *normals * normals->Dot(*tangents);
- tangents->Normalize();
-
- ++tangents;
- ++normals;
- }
- attribs.push_back({"aTangent", Property::VECTOR3, attribs[0].mNumElements, std::move(buffer)});
-}
-
-void GenerateTangents(MeshDefinition::RawData& raw)
-{
- auto& attribs = raw.mAttribs;
- DALI_ASSERT_DEBUG(attribs.size() > 1); // positions, normals
-
- auto* normals = reinterpret_cast<const Vector3*>(attribs[1].mData.data());
-
- std::vector<uint8_t> buffer(attribs[0].mNumElements * sizeof(Vector3));
- auto tangents = reinterpret_cast<Vector3*>(buffer.data());
-
- auto iEnd = normals + attribs[1].mNumElements;
- while(normals != iEnd)
- {
- Vector3 t[]{normals->Cross(Vector3::XAXIS), normals->Cross(Vector3::YAXIS)};
+ Vector3 tangentVec3;
+ if constexpr(hasUvs)
+ {
+ // Calculated by indexs
+ tangentVec3 = Vector3((*tangents).x, (*tangents).y, (*tangents).z);
+ }
+ else
+ {
+ // Only choiced by normal vector. by indexs
+ Vector3 t[]{normals->Cross(Vector3::XAXIS), normals->Cross(Vector3::YAXIS)};
+ tangentVec3 = t[t[1].LengthSquared() > t[0].LengthSquared()];
+ }
- *tangents = t[t[1].LengthSquared() > t[0].LengthSquared()];
- *tangents -= *normals * normals->Dot(*tangents);
- tangents->Normalize();
+ tangentVec3 -= *normals * normals->Dot(tangentVec3);
+ tangentVec3.Normalize();
+ if constexpr(useVec3)
+ {
+ *tangents = tangentVec3;
+ }
+ else
+ {
+ *tangents = Vector4(tangentVec3.x, tangentVec3.y, tangentVec3.z, 1.0f);
+ }
++tangents;
++normals;
}
- attribs.push_back({"aTangent", Property::VECTOR3, attribs[0].mNumElements, std::move(buffer)});
+ attribs.push_back({"aTangent", useVec3 ? Property::VECTOR3 : Property::VECTOR4, attribs[0].mNumElements, std::move(buffer)});
+
+ return true;
}
void CalculateTextureSize(uint32_t totalTextureSize, uint32_t& textureWidth, uint32_t& textureHeight)
const auto numComponents = std::max(min.size(), max.size());
using ClampFn = void (*)(const float*, const float*, uint32_t, float&);
- ClampFn clampFn = min.empty() ? (max.empty() ? static_cast<ClampFn>(nullptr) : [](const float* min, const float* max, uint32_t i, float& value)
- { value = std::min(max[i], value); })
- : (max.empty() ? [](const float* min, const float* max, uint32_t i, float& value)
- { value = std::max(min[i], value); }
- : static_cast<ClampFn>([](const float* min, const float* max, uint32_t i, float& value)
- { value = std::min(std::max(min[i], value), max[i]); }));
+ ClampFn clampFn = min.empty() ? (max.empty() ? static_cast<ClampFn>(nullptr) : [](const float* min, const float* max, uint32_t i, float& value) { value = std::min(max[i], value); })
+ : (max.empty() ? [](const float* min, const float* max, uint32_t i, float& value) { value = std::max(min[i], value); }
+ : static_cast<ClampFn>([](const float* min, const float* max, uint32_t i, float& value) { value = std::min(std::max(min[i], value), max[i]); }));
if(!clampFn)
{
raw.mIndices.resize(indexCount); // NOTE: we need space for uint32_ts initially.
std::string path;
- auto u8s = reinterpret_cast<uint8_t*>(raw.mIndices.data()) + indexCount;
+ auto u8s = reinterpret_cast<uint8_t*>(raw.mIndices.data()) + indexCount;
auto& stream = GetAvailableData(fileStream, meshPath, buffers[mIndices.mBufferIdx], path);
if(!ReadAccessor(mIndices, stream, u8s))
{
"Index buffer length not a multiple of element size");
raw.mIndices.resize(mIndices.mBlob.mLength / sizeof(unsigned short));
-
std::string path;
auto& stream = GetAvailableData(fileStream, meshPath, buffers[mIndices.mBufferIdx], path);
if(!ReadAccessor(mIndices, stream, reinterpret_cast<uint8_t*>(raw.mIndices.data())))
else if(mTangents.mBlob.mLength != 0 && hasNormals && isTriangles)
{
DALI_ASSERT_DEBUG(mTangents.mBlob.mLength == mNormals.mBlob.GetBufferSize());
- hasUvs ? GenerateTangentsWithUvs(raw) : GenerateTangents(raw);
+ static const std::function<bool(RawData&)> GenerateTangentsFunction[2][2] =
+ {
+ {
+ GenerateTangents<false, false>,
+ GenerateTangents<false, true>,
+ },
+ {
+ GenerateTangents<true, false>,
+ GenerateTangents<true, true>,
+ },
+ };
+ const bool generateSuccessed = GenerateTangentsFunction[mTangentType == Property::VECTOR3][hasUvs](raw);
+ if(!generateSuccessed)
+ {
+ DALI_LOG_ERROR("Failed to generate tangents\n");
+ }
}
if(mColors.IsDefined())
projects / platform / core / uifw / dali-toolkit.git / blobdiff