如何将 SDL 与 OGRE 结合使用？

发布于 2024-08-16 05:08:43 字数 848 浏览 10 评论 0原文

当我使用 OGRE 和 SDL （如本文），我似乎在主渲染窗口后面出现第二个窗口时遇到问题。基本上，我使用的代码是这样的：

SDL_init(SDL_INIT_VIDEO);
SDL_Surface *screen = SDL_SetVideoMode(640, 480, 0, SDL_OPENGL);

Ogre::Root *root = new Ogre::Root();
root->restoreConfig();
root->initialise(false);

Ogre::NameValuePairList windowSettings;
windowSettings["currentGLContext"] = Ogre::String("True");
Ogre::RenderWindow *window = root->createRenderWindow("MainRenderWindow", 640, 480, false, &windowSettings);
window->setVisible(true);

问题是，如何摆脱多余的窗口？

为了方便后代，我使用的是 OGRE 1.6.4、Mac OS X 10.6.2 和 SDL 1.2.14。

原文

When I go to use OGRE with SDL (as described in this article), I seem to be having trouble with a second window that appears behind my main render window. Basically, the code I'm using is this:

SDL_init(SDL_INIT_VIDEO);
SDL_Surface *screen = SDL_SetVideoMode(640, 480, 0, SDL_OPENGL);

Ogre::Root *root = new Ogre::Root();
root->restoreConfig();
root->initialise(false);

Ogre::NameValuePairList windowSettings;
windowSettings["currentGLContext"] = Ogre::String("True");
Ogre::RenderWindow *window = root->createRenderWindow("MainRenderWindow", 640, 480, false, &windowSettings);
window->setVisible(true);

The question is, how do I get rid of the extra window?

Just for posterity, I'm using OGRE 1.6.4, Mac OS X 10.6.2, and SDL 1.2.14.

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悲喜皆因你 2024-08-23 05:08:43

我最终自己解决了这个问题。问题最终是 OGRE 的 Mac GL 后端不支持 currentGLContext 选项，因此最好的解决方案是更改为 SDL 1.3（直接来自 Subversion，截至撰写本文时）并使用 currentGLContext >SDL_CreateWindowFrom 调用以开始从 OGRE 创建的窗口获取事件。还应该注意的是，OGRE 窗口需要将 macAPI 设置为 cocoa，否则 SDL 将无法识别窗口句柄。

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水晶透心 2024-08-23 05:08:43

我看到您已经解决了您的问题，但并非所有用户都会满足于将 SDL 降级到 1.3。您可以使用 SDL2 和通过 OGRE SDL_CreateWindow 创建的 SDL2 窗口。代码看起来像这样：

if (SDL_Init(SDL_INIT_VIDEO) != 0) {
    OGRE_EXCEPT(Ogre::Exception::ERR_INTERNAL_ERROR, "Cannot initialize SDL2!",
        "BaseApplication::setup");
}

Ogre::Root *root = new Ogre::Root();
root->restoreConfig();
root->initialise(false);

Ogre::NameValuePairList params; // ogre window / render system params
SDL_Window *sdlWindow = SDL_CreateWindow("myWindow", posX, posY, width, height, vflags);
// see SDL_CreateWindow docs / examples for how to populate posX, posY, width, height, and vflags according to your needs

SDL_SysWMinfo wmInfo;
SDL_VERSION(&wmInfo.version);
if (SDL_GetWindowWMInfo(sdlWindow, &wmInfo) == SDL_FALSE) {
    OGRE_EXCEPT(Ogre::Exception::ERR_INTERNAL_ERROR,
        "Couldn't get WM Info! (SDL2)",
        "BaseApplication::setup");
}

params.insert(std::make_pair("macAPI", "cocoa"));
params.insert(std::make_pair("macAPICocoaUseNSView", "true"));

// grab a string representing the NSWindow pointer
Ogre::String winHandle = Ogre::StringConverter::toString((unsigned long)wmInfo.info.cocoa.window);

// assign the NSWindow pointer to the parentWindowHandle parameter
params.insert(std::make_pair("parentWindowHandle", winHandle));

Ogre::RenderWindow *ogreWindow = root->createRenderWindow("myWindowTitle", width, height, isFullscreen, ¶ms);
// see OGRE documentation on how to populate width, height, and isFullscreen to suit your needs

// create OGRE scene manager, camera, viewports, etc

I see that you already solved your problem, but not all users will be content with downgrading SDL to 1.3. You can use SDL2 and an SDL2 window created via SDL_CreateWindow with OGRE. The code would look something like this:

if (SDL_Init(SDL_INIT_VIDEO) != 0) {
    OGRE_EXCEPT(Ogre::Exception::ERR_INTERNAL_ERROR, "Cannot initialize SDL2!",
        "BaseApplication::setup");
}

Ogre::Root *root = new Ogre::Root();
root->restoreConfig();
root->initialise(false);

Ogre::NameValuePairList params; // ogre window / render system params
SDL_Window *sdlWindow = SDL_CreateWindow("myWindow", posX, posY, width, height, vflags);
// see SDL_CreateWindow docs / examples for how to populate posX, posY, width, height, and vflags according to your needs

SDL_SysWMinfo wmInfo;
SDL_VERSION(&wmInfo.version);
if (SDL_GetWindowWMInfo(sdlWindow, &wmInfo) == SDL_FALSE) {
    OGRE_EXCEPT(Ogre::Exception::ERR_INTERNAL_ERROR,
        "Couldn't get WM Info! (SDL2)",
        "BaseApplication::setup");
}

params.insert(std::make_pair("macAPI", "cocoa"));
params.insert(std::make_pair("macAPICocoaUseNSView", "true"));

// grab a string representing the NSWindow pointer
Ogre::String winHandle = Ogre::StringConverter::toString((unsigned long)wmInfo.info.cocoa.window);

// assign the NSWindow pointer to the parentWindowHandle parameter
params.insert(std::make_pair("parentWindowHandle", winHandle));

Ogre::RenderWindow *ogreWindow = root->createRenderWindow("myWindowTitle", width, height, isFullscreen, ¶ms);
// see OGRE documentation on how to populate width, height, and isFullscreen to suit your needs

// create OGRE scene manager, camera, viewports, etc

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