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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26
src/osg/Texture2DArray.cpp
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@@ -225,8 +225,30 @@ void Texture2DArray::apply(State& state) const
// get the texture object for the current contextID.
TextureObject* textureObject = getTextureObject(contextID);
// if we already have an texture object, then
if (textureObject != 0)
if (textureObject && _textureDepth>0)
{
const osg::Image* image = _images[0].get();
if (image && getModifiedCount(0, contextID) != image->getModifiedCount())
{
// compute the internal texture format, this set the _internalFormat to an appropriate value.
computeInternalFormat();
GLsizei new_width, new_height, new_numMipmapLevels;
// compute the dimensions of the texture.
computeRequiredTextureDimensions(state, *image, new_width, new_height, new_numMipmapLevels);
if (!textureObject->match(GL_TEXTURE_2D_ARRAY_EXT, new_numMipmapLevels, _internalFormat, new_width, new_height, 1, _borderWidth))
{
Texture::releaseTextureObject(contextID, _textureObjectBuffer[contextID].get());
_textureObjectBuffer[contextID] = 0;
textureObject = 0;
}
}
}
// if we already have an texture object, then
if (textureObject)
{
// bind texture object
textureObject->bind();