ScreenPaintData::ScreenPaintData(const ScreenPaintData &other)
: PaintData()
{
translate(other.translation());
setXScale(other.xScale());
setYScale(other.yScale());
setZScale(other.zScale());
setRotationOrigin(other.rotationOrigin());
setRotationAxis(other.rotationAxis());
setRotationAngle(other.rotationAngle());
}
ScreenPaintData::ScreenPaintData(const ScreenPaintData &other)
: PaintData()
, d(new Private())
{
translate(other.translation());
setXScale(other.xScale());
setYScale(other.yScale());
setZScale(other.zScale());
setRotationOrigin(other.rotationOrigin());
setRotationAxis(other.rotationAxis());
setRotationAngle(other.rotationAngle());
d->projectionMatrix = other.d->projectionMatrix;
}
void TrackMouseEffect::paintScreen(int mask, QRegion region, ScreenPaintData& data)
{
effects->paintScreen(mask, region, data); // paint normal screen
if (!m_active)
return;
if ( effects->isOpenGLCompositing() && m_texture[0] && m_texture[1]) {
ShaderBinder binder(ShaderManager::GenericShader);
GLShader *shader(binder.shader());
if (!shader) {
return;
}
QMatrix4x4 modelview;
modelview = shader->getUniformMatrix4x4("modelview");
glEnable(GL_BLEND);
glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
QMatrix4x4 matrix(modelview);
const QPointF p = m_lastRect[0].topLeft() + QPoint(m_lastRect[0].width()/2.0, m_lastRect[0].height()/2.0);
const float x = p.x()*data.xScale() + data.xTranslation();
const float y = p.y()*data.yScale() + data.yTranslation();
for (int i = 0; i < 2; ++i) {
matrix.translate(x, y, 0.0);
matrix.rotate(i ? -2*m_angle : m_angle, 0, 0, 1.0);
matrix.translate(-x, -y, 0.0);
shader->setUniform(GLShader::ModelViewMatrix, matrix);
shader->setUniform(GLShader::Saturation, 1.0);
shader->setUniform(GLShader::ModulationConstant, QVector4D(1.0, 1.0, 1.0, 1.0));
m_texture[i]->bind();
m_texture[i]->render(region, m_lastRect[i]);
m_texture[i]->unbind();
}
glDisable(GL_BLEND);
shader->setUniform(GLShader::ModelViewMatrix, modelview);
}
#ifdef KWIN_HAVE_XRENDER_COMPOSITING
if ( effects->compositingType() == XRenderCompositing && m_picture[0] && m_picture[1]) {
float sine = sin(m_angle);
const float cosine = cos(m_angle);
for (int i = 0; i < 2; ++i) {
if (i) sine = -sine;
const float dx = m_size[i].width()/2.0;
const float dy = m_size[i].height()/2.0;
const xcb_render_picture_t picture = *m_picture[i];
#define DOUBLE_TO_FIXED(d) ((xcb_render_fixed_t) ((d) * 65536))
xcb_render_transform_t xform = {
DOUBLE_TO_FIXED( cosine ), DOUBLE_TO_FIXED( -sine ), DOUBLE_TO_FIXED( dx - cosine*dx + sine*dy ),
DOUBLE_TO_FIXED( sine ), DOUBLE_TO_FIXED( cosine ), DOUBLE_TO_FIXED( dy - sine*dx - cosine*dy ),
DOUBLE_TO_FIXED( 0.0 ), DOUBLE_TO_FIXED( 0.0 ), DOUBLE_TO_FIXED( 1.0 )
};
#undef DOUBLE_TO_FIXED
xcb_render_set_picture_transform(xcbConnection(), picture, xform);
xcb_render_set_picture_filter(xcbConnection(), picture, 8, "bilinear", 0, NULL);
const QRect &rect = m_lastRect[i];
xcb_render_composite(xcbConnection(), XCB_RENDER_PICT_OP_OVER, picture, XCB_RENDER_PICTURE_NONE,
effects->xrenderBufferPicture(), 0, 0, 0, 0,
qRound((rect.x()+rect.width()/2.0)*data.xScale() - rect.width()/2.0 + data.xTranslation()),
qRound((rect.y()+rect.height()/2.0)*data.yScale() - rect.height()/2.0 + data.yTranslation()),
rect.width(), rect.height());
}
}
#endif
if (effects->compositingType() == QPainterCompositing && !m_image[0].isNull() && !m_image[1].isNull()) {
QPainter *painter = effects->scenePainter();
const QPointF p = m_lastRect[0].topLeft() + QPoint(m_lastRect[0].width()/2.0, m_lastRect[0].height()/2.0);
for (int i = 0; i < 2; ++i) {
painter->save();
painter->translate(p.x(), p.y());
painter->rotate(i ? -2*m_angle : m_angle);
painter->translate(-p.x(), -p.y());
painter->drawImage(m_lastRect[i], m_image[i]);
painter->restore();
}
}
}
