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@ -24,110 +24,6 @@
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USE_GRAPHICSWINDOW()
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#endif
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namespace CursorDecompression
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{
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class MyGraphicsContext {
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public:
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MyGraphicsContext(int w, int h)
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{
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osg::ref_ptr<osg::GraphicsContext::Traits> traits = new osg::GraphicsContext::Traits;
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traits->x = 0;
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traits->y = 0;
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traits->width = w;
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traits->height = h;
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traits->red = 8;
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traits->green = 8;
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traits->blue = 8;
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traits->alpha = 8;
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traits->windowDecoration = false;
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traits->doubleBuffer = false;
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traits->sharedContext = nullptr;
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traits->pbuffer = true;
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osg::GraphicsContext::ScreenIdentifier si;
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si.readDISPLAY();
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if (si.displayNum<0) si.displayNum = 0;
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traits->displayNum = si.displayNum;
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traits->screenNum = si.screenNum;
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traits->hostName = si.hostName;
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_gc = osg::GraphicsContext::createGraphicsContext(traits.get());
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if (!_gc)
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{
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Log(Debug::Warning) << "Failed to create pbuffer, failing back to normal graphics window.";
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traits->pbuffer = false;
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_gc = osg::GraphicsContext::createGraphicsContext(traits.get());
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if (!_gc)
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throw std::runtime_error("Failed to create graphics context for image decompression");
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}
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if (_gc.valid())
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{
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_gc->realize();
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_gc->makeCurrent();
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}
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}
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osg::ref_ptr<osg::GraphicsContext> getContext()
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{
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return _gc;
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}
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bool valid() const { return _gc.valid() && _gc->isRealized(); }
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private:
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osg::ref_ptr<osg::GraphicsContext> _gc;
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};
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SDLUtil::SurfaceUniquePtr softwareDecompress (osg::ref_ptr<osg::Image> source, float rotDegrees)
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{
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int width = source->s();
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int height = source->t();
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bool useAlpha = source->isImageTranslucent();
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osg::ref_ptr<osg::Image> decompressedImage = new osg::Image;
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decompressedImage->setFileName(source->getFileName());
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decompressedImage->allocateImage(width, height, 1, useAlpha ? GL_RGBA : GL_RGB, GL_UNSIGNED_BYTE);
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for (int s=0; s<width; ++s)
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for (int t=0; t<height; ++t)
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decompressedImage->setColor(source->getColor(s,t,0), s,t,0);
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Uint32 redMask = 0x000000ff;
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Uint32 greenMask = 0x0000ff00;
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Uint32 blueMask = 0x00ff0000;
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Uint32 alphaMask = useAlpha ? 0xff000000 : 0;
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SDL_Surface *cursorSurface = SDL_CreateRGBSurfaceFrom(decompressedImage->data(),
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width,
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height,
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decompressedImage->getPixelSizeInBits(),
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decompressedImage->getRowSizeInBytes(),
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redMask,
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greenMask,
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blueMask,
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alphaMask);
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SDL_Surface *targetSurface = SDL_CreateRGBSurface(0, width, height, 32, redMask, greenMask, blueMask, alphaMask);
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SDL_Renderer *renderer = SDL_CreateSoftwareRenderer(targetSurface);
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SDL_RenderClear(renderer);
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SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "1");
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SDL_Texture *cursorTexture = SDL_CreateTextureFromSurface(renderer, cursorSurface);
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SDL_RenderCopyEx(renderer, cursorTexture, nullptr, nullptr, -rotDegrees, nullptr, SDL_FLIP_VERTICAL);
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SDL_DestroyTexture(cursorTexture);
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SDL_FreeSurface(cursorSurface);
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SDL_DestroyRenderer(renderer);
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return SDLUtil::SurfaceUniquePtr(targetSurface, SDL_FreeSurface);
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}
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}
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namespace SDLUtil
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{
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@ -190,13 +86,58 @@ namespace SDLUtil
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#endif
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}
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SDLUtil::SurfaceUniquePtr decompress(osg::ref_ptr<osg::Image> source, float rotDegrees)
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{
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int width = source->s();
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int height = source->t();
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bool useAlpha = source->isImageTranslucent();
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osg::ref_ptr<osg::Image> decompressedImage = new osg::Image;
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decompressedImage->setFileName(source->getFileName());
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decompressedImage->allocateImage(width, height, 1, useAlpha ? GL_RGBA : GL_RGB, GL_UNSIGNED_BYTE);
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for (int s=0; s<width; ++s)
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for (int t=0; t<height; ++t)
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decompressedImage->setColor(source->getColor(s,t,0), s,t,0);
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Uint32 redMask = 0x000000ff;
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Uint32 greenMask = 0x0000ff00;
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Uint32 blueMask = 0x00ff0000;
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Uint32 alphaMask = useAlpha ? 0xff000000 : 0;
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SDL_Surface *cursorSurface = SDL_CreateRGBSurfaceFrom(decompressedImage->data(),
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width,
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height,
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decompressedImage->getPixelSizeInBits(),
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decompressedImage->getRowSizeInBytes(),
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redMask,
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greenMask,
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blueMask,
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alphaMask);
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SDL_Surface *targetSurface = SDL_CreateRGBSurface(0, width, height, 32, redMask, greenMask, blueMask, alphaMask);
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SDL_Renderer *renderer = SDL_CreateSoftwareRenderer(targetSurface);
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SDL_RenderClear(renderer);
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SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "1");
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SDL_Texture *cursorTexture = SDL_CreateTextureFromSurface(renderer, cursorSurface);
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SDL_RenderCopyEx(renderer, cursorTexture, nullptr, nullptr, -rotDegrees, nullptr, SDL_FLIP_VERTICAL);
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SDL_DestroyTexture(cursorTexture);
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SDL_FreeSurface(cursorSurface);
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SDL_DestroyRenderer(renderer);
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return SDLUtil::SurfaceUniquePtr(targetSurface, SDL_FreeSurface);
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}
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void SDLCursorManager::_createCursorFromResource(const std::string& name, int rotDegrees, osg::Image* image, Uint8 hotspot_x, Uint8 hotspot_y)
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{
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if (mCursorMap.find(name) != mCursorMap.end())
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return;
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try {
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auto surface = CursorDecompression::softwareDecompress(image, static_cast<float>(rotDegrees));
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auto surface = decompress(image, static_cast<float>(rotDegrees));
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//set the cursor and store it for later
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SDL_Cursor* curs = SDL_CreateColorCursor(surface.get(), hotspot_x, hotspot_y);
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