FGFS-4.1/OpenSceneGraph
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Added check for image compatibility with existing texture object, releasing the existing texture object in cases when the new image size/pixel format is not compatible.

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This commit is contained in:
Robert Osfield
2009-12-08 17:33:01 +00:00
parent 248386861b
commit 65c6fdd8ca
5 changed files with 113 additions and 9 deletions
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23
src/osg/Texture3D.cpp
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@@ -210,7 +210,28 @@ void Texture3D::apply(State& state) const
// get the texture object for the current contextID.
TextureObject* textureObject = getTextureObject(contextID);
if (textureObject)
{
if (_image.valid() && getModifiedCount(contextID) != _image->getModifiedCount())
{
// compute the internal texture format, this set the _internalFormat to an appropriate value.
computeInternalFormat();
GLsizei new_width, new_height, new_depth, new_numMipmapLevels;
// compute the dimensions of the texture.
computeRequiredTextureDimensions(state, *_image, new_width, new_height, new_depth, new_numMipmapLevels);
if (!textureObject->match(GL_TEXTURE_3D, new_numMipmapLevels, _internalFormat, new_width, new_height, new_depth, _borderWidth))
{
Texture::releaseTextureObject(contextID, _textureObjectBuffer[contextID].get());
_textureObjectBuffer[contextID] = 0;
textureObject = 0;
}
}
}
if (textureObject)
{
// we have a valid image