本文整理汇总了C++中Texture::GetNumMipMapLevels方法的典型用法代码示例。如果您正苦于以下问题：C++ Texture::GetNumMipMapLevels方法的具体用法？C++ Texture::GetNumMipMapLevels怎么用？C++ Texture::GetNumMipMapLevels使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Texture的用法示例。
在下文中一共展示了Texture::GetNumMipMapLevels方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: Save
TEXLoader::IoStatus TEXLoader::Save(const Texture& texture, bool compressed) {
if (texture.GetColorMap(0) == 0) {
return kStatusMissingColormapError;
}
// Calculate log2 of width and height.
int width = 0;
int height = 0;
int log2_width = 0;
int log2_height = 0;
if (texture.IsCubeMap() == false) {
width = texture.GetColorMap(0)->GetWidth();
height = texture.GetColorMap(0)->GetHeight();
} else {
width = texture.GetCubeMapPosX(0)->GetWidth();
height = texture.GetCubeMapPosX(0)->GetHeight();
}
while ((1 << log2_width) < width) {
log2_width++;
}
while ((1 << log2_height) < height) {
log2_height++;
}
// Prepare file header.
FileHeader file_header;
file_header.tex_magic_[0] = 'T';
file_header.tex_magic_[1] = 'T';
file_header.tex_magic_[2] = 'E';
file_header.tex_magic_[3] = 'X';
file_header.version_ = 1;
file_header.data_offset_ = 16; // Size of file header.
file_header.dimension_powers_ = (uint8)((log2_height << 4) | log2_width);
file_header.compression_flag_ = compressed == true ? 1 : 0;
file_header.map_flags_ = 0;
if (texture.IsCubeMap() == false) {
if (texture.GetAlphaMap(0) != 0 ||
texture.GetColorMap(0)->GetBitDepth() == Canvas::kBitdepth32Bit)
file_header.map_flags_ |= kAlphaMap;
if (texture.GetNormalMap(0) != 0)
file_header.map_flags_ |= kNormalMap;
if (texture.GetSpecularMap(0) != 0)
file_header.map_flags_ |= kSpecularMap;
} else {
file_header.map_flags_ = kCubeMap;
}
// Write the file header.
save_file_->WriteData(file_header.tex_magic_, 4);
save_file_->Write(file_header.version_);
save_file_->Write(file_header.data_offset_);
save_file_->Write(file_header.dimension_powers_);
save_file_->Write(file_header.compression_flag_);
save_file_->Write(file_header.map_flags_);
int num_levels = texture.GetNumMipMapLevels();
if (texture.IsCubeMap() == false) {
int i;
for (i = 0; i < num_levels; i++) {
if (texture.GetColorMap(i)->GetBitDepth() != Canvas::kBitdepth24Bit) {
Canvas temp(*texture.GetColorMap(i), true);
temp.ConvertBitDepth(Canvas::kBitdepth24Bit);
if (i < (num_levels - 2) && compressed == true)
WriteJpeg(temp);
else
save_file_->WriteData(temp.GetBuffer(), temp.GetBufferByteSize());
} else {
if (i < (num_levels - 2) && compressed == true)
WriteJpeg(*texture.GetColorMap(i));
else
save_file_->WriteData(texture.GetColorMap(i)->GetBuffer(), texture.GetColorMap(i)->GetBufferByteSize());
}
}
if (texture.GetAlphaMap(0) != 0) {
for (i = 0; i < texture.GetNumMipMapLevels(); i++) {
if (i < (num_levels - 2) && compressed == true)
WriteJpeg(*texture.GetAlphaMap(i));
else
save_file_->WriteData(texture.GetAlphaMap(i)->GetBuffer(), texture.GetAlphaMap(i)->GetBufferByteSize());
}
} else if(texture.GetColorMap(0)->GetBitDepth() == Canvas::kBitdepth32Bit) {
for (i = 0; i < texture.GetNumMipMapLevels(); i++) {
Canvas alpha_map;
texture.GetColorMap(i)->GetAlphaChannel(alpha_map);
if (i < (num_levels - 2) && compressed == true)
WriteJpeg(alpha_map);
else
save_file_->WriteData(alpha_map.GetBuffer(), alpha_map.GetBufferByteSize());
}
}
//.........这里部分代码省略.........