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OpenMW is an open implementation of the Morrowind engine
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167#include "myguitexture.hpp"
#include <stdexcept>
#include <osg/StateSet>#include <osg/Texture2D>
#include <components/debug/debuglog.hpp>#include <components/resource/imagemanager.hpp>
namespace MyGUIPlatform{
OSGTexture::OSGTexture(const std::string& name, Resource::ImageManager* imageManager) : mName(name) , mImageManager(imageManager) , mFormat(MyGUI::PixelFormat::Unknow) , mUsage(MyGUI::TextureUsage::Default) , mNumElemBytes(0) , mWidth(0) , mHeight(0) { }
OSGTexture::OSGTexture(osg::Texture2D* texture, osg::StateSet* injectState) : mImageManager(nullptr) , mTexture(texture) , mInjectState(injectState) , mFormat(MyGUI::PixelFormat::Unknow) , mUsage(MyGUI::TextureUsage::Default) , mNumElemBytes(0) , mWidth(texture->getTextureWidth()) , mHeight(texture->getTextureHeight()) { }
OSGTexture::~OSGTexture() {}
void OSGTexture::createManual(int width, int height, MyGUI::TextureUsage usage, MyGUI::PixelFormat format) { GLenum glfmt = GL_NONE; size_t numelems = 0; switch (format.getValue()) { case MyGUI::PixelFormat::L8: glfmt = GL_LUMINANCE; numelems = 1; break; case MyGUI::PixelFormat::L8A8: glfmt = GL_LUMINANCE_ALPHA; numelems = 2; break; case MyGUI::PixelFormat::R8G8B8: glfmt = GL_RGB; numelems = 3; break; case MyGUI::PixelFormat::R8G8B8A8: glfmt = GL_RGBA; numelems = 4; break; } if (glfmt == GL_NONE) throw std::runtime_error("Texture format not supported");
mTexture = new osg::Texture2D(); mTexture->setTextureSize(width, height); mTexture->setSourceFormat(glfmt); mTexture->setSourceType(GL_UNSIGNED_BYTE);
mWidth = width; mHeight = height;
mTexture->setFilter(osg::Texture::MIN_FILTER, osg::Texture::LINEAR); mTexture->setFilter(osg::Texture::MAG_FILTER, osg::Texture::LINEAR); mTexture->setWrap(osg::Texture::WRAP_S, osg::Texture::CLAMP_TO_EDGE); mTexture->setWrap(osg::Texture::WRAP_T, osg::Texture::CLAMP_TO_EDGE);
mFormat = format; mUsage = usage; mNumElemBytes = numelems; }
void OSGTexture::destroy() { mTexture = nullptr; mFormat = MyGUI::PixelFormat::Unknow; mUsage = MyGUI::TextureUsage::Default; mNumElemBytes = 0; mWidth = 0; mHeight = 0; }
void OSGTexture::loadFromFile(const std::string& fname) { if (!mImageManager) throw std::runtime_error("No imagemanager set");
osg::ref_ptr<osg::Image> image(mImageManager->getImage(VFS::Path::Normalized(fname))); mTexture = new osg::Texture2D(image); mTexture->setWrap(osg::Texture::WRAP_S, osg::Texture::CLAMP_TO_EDGE); mTexture->setWrap(osg::Texture::WRAP_T, osg::Texture::CLAMP_TO_EDGE); mTexture->setTextureWidth(image->s()); mTexture->setTextureHeight(image->t()); // disable mip-maps mTexture->setFilter(osg::Texture2D::MIN_FILTER, osg::Texture2D::LINEAR);
mWidth = image->s(); mHeight = image->t();
mUsage = MyGUI::TextureUsage::Static; }
void OSGTexture::saveToFile(const std::string& fname) { Log(Debug::Warning) << "Would save image to file " << fname; }
void* OSGTexture::lock(MyGUI::TextureUsage /*access*/) { if (!mTexture.valid()) throw std::runtime_error("Texture is not created"); if (mLockedImage.valid()) throw std::runtime_error("Texture already locked");
mLockedImage = new osg::Image(); mLockedImage->allocateImage(mTexture->getTextureWidth(), mTexture->getTextureHeight(), mTexture->getTextureDepth(), mTexture->getSourceFormat(), mTexture->getSourceType());
return mLockedImage->data(); }
void OSGTexture::unlock() { if (!mLockedImage.valid()) throw std::runtime_error("Texture not locked");
// mTexture might be in use by the draw thread, so create a new texture instead and use that. osg::ref_ptr<osg::Texture2D> newTexture = new osg::Texture2D; newTexture->setTextureSize(getWidth(), getHeight()); newTexture->setSourceFormat(mTexture->getSourceFormat()); newTexture->setSourceType(mTexture->getSourceType()); newTexture->setFilter(osg::Texture::MIN_FILTER, mTexture->getFilter(osg::Texture::MIN_FILTER)); newTexture->setFilter(osg::Texture::MAG_FILTER, mTexture->getFilter(osg::Texture::MAG_FILTER)); newTexture->setWrap(osg::Texture::WRAP_S, mTexture->getWrap(osg::Texture::WRAP_S)); newTexture->setWrap(osg::Texture::WRAP_T, mTexture->getWrap(osg::Texture::WRAP_T)); newTexture->setImage(mLockedImage.get()); // Tell the texture it can get rid of the image for static textures (since // they aren't expected to update much at all). newTexture->setUnRefImageDataAfterApply(mUsage.isValue(MyGUI::TextureUsage::Static) ? true : false);
mTexture = newTexture;
mLockedImage = nullptr; }
// Render-to-texture not currently implemented. MyGUI::IRenderTarget* OSGTexture::getRenderTarget() { return nullptr; }
void OSGTexture::setShader(const std::string& /*shaderName*/) { Log(Debug::Warning) << "OSGTexture::setShader is not implemented"; }}