void CC3PVRTexture::bindTextureContent( CC3PVRTextureContent* texContent, GLenum target )
{
if (!texContent)
return;
deleteGLTexture(); // Delete any existing texture in the GL engine
_textureID = texContent->getTextureID();
_size = texContent->getSize();
_hasMipmap = texContent->hasMipmap();
_hasPremultipliedAlpha = texContent->hasPremultipliedAlpha();
_isTextureCube = texContent->isTextureCube();
_coverage = CCSizeMake(1.0f, 1.0f); // PVR textures are always POT
_pixelFormat = texContent->getPixelFormat();
_pixelType = texContent->getPixelType();
//LogTrace(@"Bound PVR texture ID %u", _textureID);
// Update the texture parameters depending on whether the PVR file is 2D or cube-map.
setTextureParameters( isTextureCube()
? CC3TextureCube::defaultTextureParameters()
: CC3Texture2D::defaultTextureParameters() );
}
/**
* @brief cwImageTexture::~cwImageTexture
*
* The deconstructor assumes that the current opengl context has
* been set, and this object is being destroyed in the correct thread
*/
cwImageTexture::~cwImageTexture()
{
deleteGLTexture();
}
/**
This upload the results from texture image to the graphics card
*/
void cwImageTexture::updateData() {
if(!isDirty()) { return; }
if(DeleteTexture) {
deleteGLTexture();
TextureDirty = false;
return;
}
if(TextureUploadTask == nullptr) {
TextureDirty = false;
return;
}
if(TextureUploadTask->isRunning()) { return; }
QList<QPair<QByteArray, QSize> > mipmaps = TextureUploadTask->mipmaps();
ScaleTexCoords = TextureUploadTask->scaleTexCoords();
if(mipmaps.empty()) { return; }
QSize firstLevel = mipmaps.first().second;
if(!cwTextureUploadTask::isDivisibleBy4(firstLevel)) {
qDebug() << "Trying to upload an image that isn't divisible by 4. This will crash ANGLE on windows." << LOCATION;
TextureDirty = false;
return;
}
//Load the data into opengl
bind();
//Get the max texture size
GLint maxTextureSize;
glGetIntegerv(GL_MAX_TEXTURE_SIZE, &maxTextureSize);
int trueMipmapLevel = 0;
for(int mipmapLevel = 0; mipmapLevel < mipmaps.size(); mipmapLevel++) {
//Get the mipmap data
QPair<QByteArray, QSize> image = mipmaps.at(mipmapLevel);
QByteArray imageData = image.first;
QSize size = image.second;
if(size.width() < maxTextureSize && size.height() < maxTextureSize) {
glCompressedTexImage2D(GL_TEXTURE_2D, trueMipmapLevel, GL_COMPRESSED_RGB_S3TC_DXT1_EXT,
size.width(), size.height(), 0,
imageData.size(), imageData.data());
trueMipmapLevel++;
#ifdef Q_OS_WIN
//Only upload one texture, because some intel cards, don't support npot dxt1 copression, so we just used nearest
//FIXME: ADD to rendering settings!
break;
#endif //Q_OS_WIN
}
}
release();
deleteLoadNoteTask();
TextureDirty = false;
}
