void PlaneViewer::draw(TRasterP ras, double dpiX, double dpiY, TPalette *pal) {
TPointD rasCenter(ras->getCenterD());
TRaster32P aux(rasterBuffer());
aux->lock();
ras->lock();
glGetDoublev(GL_MODELVIEW_MATRIX, m_matrix);
TAffine viewAff(m_matrix[0], m_matrix[4], m_matrix[12], m_matrix[1],
m_matrix[5], m_matrix[13]);
viewAff = viewAff * TScale(Stage::inch / dpiX, Stage::inch / dpiY) *
TTranslation(-rasCenter);
pushGLWinCoordinates();
aux->clear();
if (pal)
TRop::quickPut(aux, (TRasterCM32P)ras, pal, viewAff);
else
TRop::quickPut(aux, ras, viewAff);
flushRasterBuffer();
popGLCoordinates();
}
void paintGL() override
{
pushGLWorldCoordinates();
drawBackground();
if (m_ras) {
glEnable(GL_BLEND);
glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
//Note GL_ONE instead of GL_SRC_ALPHA: it's needed since the input
//image is supposedly premultiplied - and it works because the
//viewer's background is opaque.
//See tpixelutils.h's overPixT function for comparison.
draw(m_ras);
glDisable(GL_BLEND);
}
popGLCoordinates();
}
void paintGL() override
{
drawBackground();
// Draw original
if (m_img) {
pushGLWorldCoordinates();
glEnable(GL_BLEND);
glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
// Note GL_ONE instead of GL_SRC_ALPHA: it's needed since the input
// image is supposedly premultiplied - and it works because the
// viewer's background is opaque.
// See tpixelutils.h's overPixT function for comparison.
draw(m_img);
glDisable(GL_BLEND);
popGLCoordinates();
} else if (m_xsh) {
// Build reference change affines
// EXPLANATION: RasterPainter receives an affine specifiying the reference change
// from world coordinates to the OpenGL viewport, where (0,0) corresponds to the
// viewport center.
const TAffine &cameraAff = m_xsh->getPlacement(m_xsh->getStageObjectTree()->getCurrentCameraId(), m_row);
TTranslation centeredWidgetToWidgetAff(0.5 * width(), 0.5 * height());
const TAffine &worldToCenteredWigetAff = centeredWidgetToWidgetAff.inv() * viewAff() * cameraAff.inv();
glPushMatrix();
tglMultMatrix(centeredWidgetToWidgetAff);
assert(m_row >= 0);
ImagePainter::VisualSettings vs;
TDimension viewerSize(width(), height());
Stage::RasterPainter painter(viewerSize, worldToCenteredWigetAff, TRect(viewerSize), vs, false);
ToonzScene *scene = TApp::instance()->getCurrentScene()->getScene();
Stage::visit(painter, scene, m_xsh.getPointer(), m_row);
painter.flushRasterImages();
glFlush();
glPopMatrix();
}
// Draw mesh preview
if (m_meshImg) {
glEnable(GL_BLEND);
glEnable(GL_LINE_SMOOTH);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
// Retrieve mesh dpi
TPointD meshDpi;
m_meshImg->getDpi(meshDpi.x, meshDpi.y);
// Push mesh-to-world coordinates change
pushGLWorldCoordinates();
glScaled(Stage::inch / meshDpi.x, Stage::inch / meshDpi.y, 1.0);
glColor4f(0.0, 1.0, 0.0, 0.7); // Translucent green
tglDrawEdges(*m_meshImg);
popGLCoordinates();
glDisable(GL_LINE_SMOOTH);
glDisable(GL_BLEND);
}
}