Move MyGUI texture to a separate file
scrawl
10 years ago
parent
62847f0489
commit
db7fe1952d
@ -0,0 +1,164 @@
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#include "myguitexture.hpp"
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#include <stdexcept>
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#include <iostream>
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#include <osg/Texture2D>
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#include <components/resource/texturemanager.hpp>
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namespace MWGui
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{
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OSGTexture::OSGTexture(const std::string &name, Resource::TextureManager* textureManager)
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: mName(name)
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, mTextureManager(textureManager)
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, mFormat(MyGUI::PixelFormat::Unknow)
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, mUsage(MyGUI::TextureUsage::Default)
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, mNumElemBytes(0)
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{
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}
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OSGTexture::OSGTexture(osg::Texture2D *texture)
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: mTextureManager(NULL)
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, mTexture(texture)
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, mFormat(MyGUI::PixelFormat::Unknow)
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, mUsage(MyGUI::TextureUsage::Default)
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, mNumElemBytes(0)
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{
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}
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OSGTexture::~OSGTexture()
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{
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}
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void OSGTexture::createManual(int width, int height, MyGUI::TextureUsage usage, MyGUI::PixelFormat format)
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{
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GLenum glfmt = GL_NONE;
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size_t numelems = 0;
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switch(format.getValue())
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{
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case MyGUI::PixelFormat::L8:
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glfmt = GL_LUMINANCE;
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numelems = 1;
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break;
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case MyGUI::PixelFormat::L8A8:
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glfmt = GL_LUMINANCE_ALPHA;
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numelems = 2;
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break;
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case MyGUI::PixelFormat::R8G8B8:
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glfmt = GL_RGB;
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numelems = 3;
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break;
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case MyGUI::PixelFormat::R8G8B8A8:
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glfmt = GL_RGBA;
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numelems = 4;
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break;
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}
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if(glfmt == GL_NONE)
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throw std::runtime_error("Texture format not supported");
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mTexture = new osg::Texture2D();
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mTexture->setTextureSize(width, height);
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mTexture->setSourceFormat(glfmt);
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mTexture->setSourceType(GL_UNSIGNED_BYTE);
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mTexture->setFilter(osg::Texture::MIN_FILTER, osg::Texture::LINEAR);
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mTexture->setFilter(osg::Texture::MAG_FILTER, osg::Texture::LINEAR);
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mTexture->setWrap(osg::Texture::WRAP_S, osg::Texture::CLAMP_TO_EDGE);
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mTexture->setWrap(osg::Texture::WRAP_T, osg::Texture::CLAMP_TO_EDGE);
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mFormat = format;
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mUsage = usage;
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mNumElemBytes = numelems;
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}
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void OSGTexture::destroy()
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{
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mTexture = nullptr;
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mFormat = MyGUI::PixelFormat::Unknow;
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mUsage = MyGUI::TextureUsage::Default;
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mNumElemBytes = 0;
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}
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void OSGTexture::loadFromFile(const std::string &fname)
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{
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if (!mTextureManager)
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throw std::runtime_error("No texturemanager set");
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mTexture = mTextureManager->getTexture2D(fname, osg::Texture2D::CLAMP, osg::Texture2D::CLAMP);
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// FIXME
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mFormat = MyGUI::PixelFormat::R8G8B8;
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mUsage = MyGUI::TextureUsage::Static | MyGUI::TextureUsage::Write;
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mNumElemBytes = 3; // FIXME
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}
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void OSGTexture::saveToFile(const std::string &fname)
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{
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std::cerr << "Would save image to file " << fname << std::endl;
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}
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int OSGTexture::getWidth()
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{
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if(!mTexture.valid())
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return 0;
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osg::Image *image = mTexture->getImage();
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if(image) return image->s();
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return mTexture->getTextureWidth();
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}
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int OSGTexture::getHeight()
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{
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if(!mTexture.valid())
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return 0;
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osg::Image *image = mTexture->getImage();
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if(image) return image->t();
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return mTexture->getTextureHeight();
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}
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void *OSGTexture::lock(MyGUI::TextureUsage /*access*/)
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{
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if (!mTexture.valid())
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throw std::runtime_error("Texture is not created");
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if (mLockedImage.valid())
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throw std::runtime_error("Texture already locked");
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mLockedImage = mTexture->getImage();
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if(!mLockedImage.valid())
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{
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mLockedImage = new osg::Image();
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mLockedImage->allocateImage(
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mTexture->getTextureWidth(), mTexture->getTextureHeight(), mTexture->getTextureDepth(),
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mTexture->getSourceFormat(), mTexture->getSourceType()
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);
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}
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return mLockedImage->data();
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}
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void OSGTexture::unlock()
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{
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if (!mLockedImage.valid())
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throw std::runtime_error("Texture not locked");
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// Tell the texture it can get rid of the image for static textures (since
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// they aren't expected to update much at all).
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mTexture->setImage(mLockedImage.get());
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mTexture->setUnRefImageDataAfterApply(mUsage.isValue(MyGUI::TextureUsage::Static) ? true : false);
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mTexture->dirtyTextureObject();
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mLockedImage = nullptr;
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}
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bool OSGTexture::isLocked()
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{
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return mLockedImage.valid();
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}
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// Render-to-texture not currently implemented.
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MyGUI::IRenderTarget* OSGTexture::getRenderTarget()
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{
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return nullptr;
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}
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}
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@ -0,0 +1,64 @@
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#ifndef OPENMW_MWGUI_MYGUITEXTURE_H
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#define OPENMW_MWGUI_MYGUITEXTURE_H
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#include <MyGUI_ITexture.h>
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#include <osg/ref_ptr>
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namespace osg
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{
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class Image;
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class Texture2D;
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}
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namespace Resource
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{
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class TextureManager;
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}
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namespace MWGui
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{
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class OSGTexture : public MyGUI::ITexture {
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std::string mName;
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Resource::TextureManager* mTextureManager;
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osg::ref_ptr<osg::Image> mLockedImage;
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osg::ref_ptr<osg::Texture2D> mTexture;
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MyGUI::PixelFormat mFormat;
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MyGUI::TextureUsage mUsage;
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size_t mNumElemBytes;
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public:
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OSGTexture(const std::string &name, Resource::TextureManager* textureManager);
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OSGTexture(osg::Texture2D* texture);
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virtual ~OSGTexture();
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virtual const std::string& getName() const { return mName; }
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virtual void createManual(int width, int height, MyGUI::TextureUsage usage, MyGUI::PixelFormat format);
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virtual void loadFromFile(const std::string &fname);
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virtual void saveToFile(const std::string &fname);
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virtual void destroy();
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virtual void* lock(MyGUI::TextureUsage access);
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virtual void unlock();
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virtual bool isLocked();
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virtual int getWidth();
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virtual int getHeight();
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virtual MyGUI::PixelFormat getFormat() { return mFormat; }
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virtual MyGUI::TextureUsage getUsage() { return mUsage; }
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virtual size_t getNumElemBytes() { return mNumElemBytes; }
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virtual MyGUI::IRenderTarget *getRenderTarget();
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/*internal:*/
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osg::Texture2D *getTexture() const { return mTexture.get(); }
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};
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}
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#endif
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