本文整理汇总了C++中DataPtr::GetSize方法的典型用法代码示例。如果您正苦于以下问题：C++ DataPtr::GetSize方法的具体用法？C++ DataPtr::GetSize怎么用？C++ DataPtr::GetSize使用的例子？那么, 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DataPtr的用法示例。
在下文中一共展示了DataPtr::GetSize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: Create
ResourceStatus OpenGLTextureFactory::Create(OpenGLTexture &resource, DataPtr data)
{
s_assert(data != nullptr);
auto &config = resource.Config;
resource.Target = GLEnumFromTextureType(config.Type);
OpenGLRenderer::Get().ResetTexture();
glGenTextures(1, &resource.TextureID);
glActiveTexture(GL_TEXTURE0);
glBindTexture(resource.Target, resource.TextureID);
s_assert(resource.TextureID != 0);
s_assert(config.MipMapCount == 1 || !(IsTextureFilterModeUseMipmap(config.FilterModeMin) || IsTextureFilterModeUseMipmap(config.FilterModeMag)));
glTexParameteri(resource.Target, GL_TEXTURE_MIN_FILTER, GLEnumFromTextureFilterMode(config.FilterModeMin));
glTexParameteri(resource.Target, GL_TEXTURE_MAG_FILTER, GLEnumFromTextureFilterMode(config.FilterModeMag));
s_assert(config.Type != TextureType::TEXTURE_CUBE || (config.WrapModeS == TextureWrapMode::CLAMP_TO_EDGE && config.WrapModeT == TextureWrapMode::CLAMP_TO_EDGE && config.WrapModeR == TextureWrapMode::CLAMP_TO_EDGE));
glTexParameteri(resource.Target, GL_TEXTURE_WRAP_S, GLEnumFromTextureWrapMode(config.WrapModeS));
glTexParameteri(resource.Target, GL_TEXTURE_WRAP_T, GLEnumFromTextureWrapMode(config.WrapModeT));
glTexParameteri(resource.Target, GL_TEXTURE_WRAP_R, GLEnumFromTextureWrapMode(config.WrapModeR));
auto faceCount = config.Type == TextureType::TEXTURE_CUBE ? GraphicsConfig::CubeTextureFaceCount : 1;
auto isCompressed = IsCompressedPixelFormat(config.ColorFormat);
auto internalFormat = GLEnumFromPixelFormatAsInternal(config.ColorFormat);
auto layout = isCompressed ? 0 : GLEnumFromPixelFormatAsLayout(config.ColorFormat);
auto format = GLEnumFromPixelFormatAsFormat(config.ColorFormat);
for (auto faceIndex = 0; faceIndex < faceCount; ++faceIndex)
{
auto realTarget = resource.Target;
if (config.Type == TextureType::TEXTURE_CUBE)
{
switch (faceIndex)
{
case 0: realTarget = GL_TEXTURE_CUBE_MAP_POSITIVE_X; break;
case 1: realTarget = GL_TEXTURE_CUBE_MAP_NEGATIVE_X; break;
case 2: realTarget = GL_TEXTURE_CUBE_MAP_POSITIVE_Y; break;
case 3: realTarget = GL_TEXTURE_CUBE_MAP_NEGATIVE_Y; break;
case 4: realTarget = GL_TEXTURE_CUBE_MAP_POSITIVE_Z; break;
default: realTarget = GL_TEXTURE_CUBE_MAP_NEGATIVE_Z; break;
}
}
for (auto mipMapIndex = 0; mipMapIndex < config.MipMapCount; ++mipMapIndex)
{
s_assert(config.DataSize[faceIndex][mipMapIndex] > 0);
auto width = config.Width >> mipMapIndex;
auto height = config.Height >> mipMapIndex;
if (width == 0) width = 1;
if (height == 0) height = 1;
if (isCompressed)
{
s_assert(config.DataOffset[faceIndex][mipMapIndex] + config.DataSize[faceIndex][mipMapIndex] <= data->GetSize());
glCompressedTexImage2D(realTarget, mipMapIndex, internalFormat, width, height, 0, config.DataSize[faceIndex][mipMapIndex], data->GetBuffer(config.DataOffset[faceIndex][mipMapIndex]));
}
else
{
s_assert(config.DataOffset[faceIndex][mipMapIndex] + SizeOfPixelFormat(config.ColorFormat) * width * height <= data->GetSize());
glTexImage2D(realTarget, mipMapIndex, internalFormat, width, height, 0, format, layout, data->GetBuffer(config.DataOffset[faceIndex][mipMapIndex]));
}
}
}
return ResourceStatus::COMPLETED;
}