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Dump iw4 images

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Jan
2020-10-16 15:57:39 +02:00
parent b8b8e4c267
commit a1c965a4c0
13 changed files with 689 additions and 230 deletions
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121
src/ObjLoading/Image/IwiLoader.cpp
View File

@ -7,6 +7,120 @@ IwiLoader::IwiLoader(MemoryManager* memoryManager)
m_memory_manager = memoryManager;
}
const ImageFormat* IwiLoader::GetFormat8(int8_t format)
{
switch (static_cast<iwi8::IwiFormat>(format))
{
case iwi8::IwiFormat::IMG_FORMAT_BITMAP_RGBA:
return &ImageFormat::FORMAT_R8_G8_B8_A8;
case iwi8::IwiFormat::IMG_FORMAT_BITMAP_RGB:
return &ImageFormat::FORMAT_R8_G8_B8;
case iwi8::IwiFormat::IMG_FORMAT_BITMAP_ALPHA:
return &ImageFormat::FORMAT_A8;
case iwi8::IwiFormat::IMG_FORMAT_DXT1:
return &ImageFormat::FORMAT_BC1;
case iwi8::IwiFormat::IMG_FORMAT_DXT3:
return &ImageFormat::FORMAT_BC2;
case iwi8::IwiFormat::IMG_FORMAT_DXT5:
return &ImageFormat::FORMAT_BC3;
case iwi8::IwiFormat::IMG_FORMAT_DXN:
return &ImageFormat::FORMAT_BC5;
case iwi8::IwiFormat::IMG_FORMAT_BITMAP_LUMINANCE_ALPHA: // used
case iwi8::IwiFormat::IMG_FORMAT_BITMAP_LUMINANCE: // used
case iwi8::IwiFormat::IMG_FORMAT_WAVELET_RGBA: // used
case iwi8::IwiFormat::IMG_FORMAT_WAVELET_RGB: // used
case iwi8::IwiFormat::IMG_FORMAT_WAVELET_LUMINANCE_ALPHA:
case iwi8::IwiFormat::IMG_FORMAT_WAVELET_LUMINANCE:
case iwi8::IwiFormat::IMG_FORMAT_WAVELET_ALPHA:
case iwi8::IwiFormat::IMG_FORMAT_DXT3A_AS_LUMINANCE:
case iwi8::IwiFormat::IMG_FORMAT_DXT5A_AS_LUMINANCE:
case iwi8::IwiFormat::IMG_FORMAT_DXT3A_AS_ALPHA:
case iwi8::IwiFormat::IMG_FORMAT_DXT5A_AS_ALPHA:
case iwi8::IwiFormat::IMG_FORMAT_DXT1_AS_LUMINANCE_ALPHA:
case iwi8::IwiFormat::IMG_FORMAT_DXN_AS_LUMINANCE_ALPHA:
case iwi8::IwiFormat::IMG_FORMAT_DXT1_AS_LUMINANCE:
case iwi8::IwiFormat::IMG_FORMAT_DXT1_AS_ALPHA:
printf("Unsupported IWI format: %i\n", format);
break;
default:
printf("Unknown IWI format: %i\n", format);
break;
}
return nullptr;
}
Texture* IwiLoader::LoadIwi8(FileAPI::IFile* file)
{
iwi8::IwiHeader header{};
if (file->Read(&header, sizeof header, 1) != 1)
return nullptr;
const ImageFormat* format = GetFormat8(header.format);
if (format == nullptr)
return nullptr;
uint16_t width = header.dimensions[0];
uint16_t height = header.dimensions[1];
uint16_t depth = header.dimensions[2];
bool hasMipMaps = !(header.flags & iwi8::IwiFlags::IMG_FLAG_NOMIPMAPS);
Texture* texture;
if ((header.flags & iwi8::IwiFlags::IMG_FLAG_MAPTYPE_MASK) == iwi8::IwiFlags::IMG_FLAG_MAPTYPE_CUBE)
{
texture = m_memory_manager->Create<TextureCube>(format, width, height, hasMipMaps);
}
else if ((header.flags & iwi8::IwiFlags::IMG_FLAG_MAPTYPE_MASK) == iwi8::IwiFlags::IMG_FLAG_MAPTYPE_3D)
{
texture = m_memory_manager->Create<Texture3D>(format, width, height, depth, hasMipMaps);
}
else if ((header.flags & iwi8::IwiFlags::IMG_FLAG_MAPTYPE_MASK) == iwi8::IwiFlags::IMG_FLAG_MAPTYPE_2D)
{
texture = m_memory_manager->Create<Texture2D>(format, width, height, hasMipMaps);
}
else if ((header.flags & iwi8::IwiFlags::IMG_FLAG_MAPTYPE_MASK) == iwi8::IwiFlags::IMG_FLAG_MAPTYPE_1D)
{
printf("Iwi has unsupported map type 1D\n");
return nullptr;
}
else
{
printf("Iwi has unsupported map type\n");
return nullptr;
}
texture->Allocate();
size_t currentFileSize = sizeof iwi8::IwiHeader + sizeof IwiVersion;
const int mipMapCount = hasMipMaps ? texture->GetMipMapCount() : 1;
for (int currentMipLevel = mipMapCount - 1; currentMipLevel >= 0; currentMipLevel--)
{
const size_t sizeOfMipLevel = texture->GetSizeOfMipLevel(currentMipLevel) * texture->GetFaceCount();
currentFileSize += sizeOfMipLevel;
if (currentMipLevel < static_cast<int>(_countof(iwi8::IwiHeader::fileSizeForPicmip))
&& currentFileSize != header.fileSizeForPicmip[currentMipLevel])
{
printf("Iwi has invalid file size for picmip %i\n", currentMipLevel);
m_memory_manager->Delete(texture);
return nullptr;
}
if (file->Read(texture->GetBufferForMipLevel(currentMipLevel), 1, sizeOfMipLevel) != sizeOfMipLevel)
{
printf("Unexpected eof of iwi in mip level %i\n", currentMipLevel);
m_memory_manager->Delete(texture);
return nullptr;
}
}
return texture;
}
const ImageFormat* IwiLoader::GetFormat27(int8_t format)
{
switch (static_cast<iwi27::IwiFormat>(format))
@ -65,11 +179,11 @@ Texture* IwiLoader::LoadIwi27(FileAPI::IFile* file)
bool hasMipMaps = !(header.flags & iwi27::IwiFlags::IMG_FLAG_NOMIPMAPS);
Texture* texture;
if(header.flags & iwi27::IwiFlags::IMG_FLAG_CUBEMAP)
if (header.flags & iwi27::IwiFlags::IMG_FLAG_CUBEMAP)
{
texture = m_memory_manager->Create<TextureCube>(format, width, height, hasMipMaps);
}
else if(header.flags & iwi27::IwiFlags::IMG_FLAG_VOLMAP)
else if (header.flags & iwi27::IwiFlags::IMG_FLAG_VOLMAP)
{
texture = m_memory_manager->Create<Texture3D>(format, width, height, depth, hasMipMaps);
}
@ -125,6 +239,9 @@ Texture* IwiLoader::LoadIwi(FileAPI::IFile* file)
switch (iwiVersion.version)
{
case 8:
return LoadIwi8(file);
case 27:
return LoadIwi27(file);

3
src/ObjLoading/Image/IwiLoader.h
View File

@ -8,6 +8,9 @@ class IwiLoader
{
MemoryManager* m_memory_manager;
static const ImageFormat* GetFormat8(int8_t format);
Texture* LoadIwi8(FileAPI::IFile* file);
static const ImageFormat* GetFormat27(int8_t format);
Texture* LoadIwi27(FileAPI::IFile* file);