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Merge pull request #3333 from RichardTea/acloader_enums 

ACLoader: Use Surface type enums
pull/3329/head^2
Kim Kulling 2020-07-23 11:27:07 +02:00 committed by GitHub
parent ac83e3593e a33557be71
commit 52c29612f7
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 48 additions and 19 deletions
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29
code/AssetLib/AC/ACLoader.cpp
View File

@ -471,32 +471,33 @@ aiNode *AC3DImporter::ConvertObjectSection(Object &object,
++node->mNumMeshes;
}
switch ((*it).flags & 0xf) {
switch ((*it).GetType()) {
// closed line
case 0x1:
case Surface::ClosedLine:
needMat[idx].first += (unsigned int)(*it).entries.size();
needMat[idx].second += (unsigned int)(*it).entries.size() << 1u;
break;
// unclosed line
case 0x2:
case Surface::OpenLine:
needMat[idx].first += (unsigned int)(*it).entries.size() - 1;
needMat[idx].second += ((unsigned int)(*it).entries.size() - 1) << 1u;
break;
// triangle strip
case 0x4:
case Surface::TriangleStrip:
needMat[idx].first += (unsigned int)(*it).entries.size() - 2;
needMat[idx].second += ((unsigned int)(*it).entries.size() - 2) * 3;
break;
// 0 == polygon, else unknown
default:
if ((*it).flags & 0xf) {
ASSIMP_LOG_WARN("AC3D: The type flag of a surface is unknown");
(*it).flags &= ~(0xf);
}
// Coerce unknowns to a polygon and warn
ASSIMP_LOG_WARN_F("AC3D: The type flag of a surface is unknown: ", (*it).flags);
(*it).flags &= ~(Surface::Mask);
// fallthrough
// polygon
case Surface::Polygon:
// the number of faces increments by one, the number
// of vertices by surface.numref.
needMat[idx].first++;
@ -552,8 +553,8 @@ aiNode *AC3DImporter::ConvertObjectSection(Object &object,
const Surface &src = *it;
// closed polygon
unsigned int type = (*it).flags & 0xf;
if (!type) {
uint8_t type = (*it).GetType();
if (type == Surface::Polygon) {
aiFace &face = *faces++;
face.mNumIndices = (unsigned int)src.entries.size();
if (0 != face.mNumIndices) {
@ -576,7 +577,7 @@ aiNode *AC3DImporter::ConvertObjectSection(Object &object,
}
}
}
} else if (type == 0x4) {
} else if (type == Surface::TriangleStrip) {
for (unsigned int i = 0; i < (unsigned int)src.entries.size() - 2; ++i) {
const Surface::SurfaceEntry &entry1 = src.entries[i];
const Surface::SurfaceEntry &entry2 = src.entries[i + 1];
@ -640,7 +641,7 @@ aiNode *AC3DImporter::ConvertObjectSection(Object &object,
// either a closed or an unclosed line
unsigned int tmp = (unsigned int)(*it).entries.size();
if (0x2 == type) --tmp;
if (Surface::OpenLine == type) --tmp;
for (unsigned int m = 0; m < tmp; ++m) {
aiFace &face = *faces++;
@ -663,7 +664,7 @@ aiNode *AC3DImporter::ConvertObjectSection(Object &object,
++uv;
}
if (0x1 == type && tmp - 1 == m) {
if (Surface::ClosedLine == type && tmp - 1 == m) {
// if this is a closed line repeat its beginning now
it2 = (*it).entries.begin();
} else

34
code/AssetLib/AC/ACLoader.h
View File

@ -69,7 +69,10 @@ public:
// Represents an AC3D material
struct Material {
Material() :
rgb(0.6f, 0.6f, 0.6f), spec(1.f, 1.f, 1.f), shin(0.f), trans(0.f) {}
rgb(0.6f, 0.6f, 0.6f),
spec(1.f, 1.f, 1.f),
shin(0.f),
trans(0.f) {}
// base color of the material
aiColor3D rgb;
@ -96,18 +99,43 @@ public:
// Represents an AC3D surface
struct Surface {
Surface() :
mat(0), flags(0) {}
mat(0),
flags(0) {}
unsigned int mat, flags;
typedef std::pair<unsigned int, aiVector2D> SurfaceEntry;
std::vector<SurfaceEntry> entries;
// Type is low nibble of flags
enum Type : uint8_t {
Polygon = 0x0,
ClosedLine = 0x1,
OpenLine = 0x2,
TriangleStrip = 0x4, // ACC extension (TORCS and Speed Dreams)
Mask = 0xf,
};
inline constexpr uint8_t GetType() const { return (flags & Mask); }
};
// Represents an AC3D object
struct Object {
Object() :
type(World), name(""), children(), texture(""), texRepeat(1.f, 1.f), texOffset(0.0f, 0.0f), rotation(), translation(), vertices(), surfaces(), numRefs(0), subDiv(0), crease() {}
type(World),
name(""),
children(),
texture(""),
texRepeat(1.f, 1.f),
texOffset(0.0f, 0.0f),
rotation(),
translation(),
vertices(),
surfaces(),
numRefs(0),
subDiv(0),
crease() {}
// Type description
enum Type {