void KisCoordinatesConverterTest::testConversion()
{
KisImageSP image;
KisCoordinatesConverter converter;
initImage(&image, &converter);
converter.setImage(image);
converter.setDocumentOffset(QPoint(20,20));
converter.setCanvasWidgetSize(QSize(500,500));
converter.setZoom(1.);
QRectF testRect(100,100,100,100);
QCOMPARE(converter.imageToViewport(testRect), QRectF(80,80,100,100));
QCOMPARE(converter.viewportToImage(testRect), QRectF(120,120,100,100));
QCOMPARE(converter.widgetToViewport(testRect), QRectF(100,100,100,100));
QCOMPARE(converter.viewportToWidget(testRect), QRectF(100,100,100,100));
QCOMPARE(converter.widgetToDocument(testRect), QRectF(1.20,1.20,1,1));
QCOMPARE(converter.documentToWidget(testRect), QRectF(9980,9980,10000,10000));
QCOMPARE(converter.imageToDocument(testRect), QRectF(1,1,1,1));
QCOMPARE(converter.documentToImage(testRect), QRectF(10000,10000,10000,10000));
converter.setZoom(0.5);
QCOMPARE(converter.imageToViewport(testRect), QRectF(30,30,50,50));
QCOMPARE(converter.viewportToImage(testRect), QRectF(240,240,200,200));
QCOMPARE(converter.widgetToViewport(testRect), QRectF(100,100,100,100));
QCOMPARE(converter.viewportToWidget(testRect), QRectF(100,100,100,100));
QCOMPARE(converter.widgetToDocument(testRect), QRectF(2.4,2.4,2,2));
QCOMPARE(converter.documentToWidget(testRect), QRectF(4980,4980,5000,5000));
QCOMPARE(converter.imageToDocument(testRect), QRectF(1,1,1,1));
QCOMPARE(converter.documentToImage(testRect), QRectF(10000,10000,10000,10000));
}
void KisOpenGLCanvas2::drawImage()
{
if (!d->displayShader) {
return;
}
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
KisCoordinatesConverter *converter = coordinatesConverter();
d->displayShader->bind();
QMatrix4x4 projectionMatrix;
projectionMatrix.setToIdentity();
projectionMatrix.ortho(0, width(), height(), 0, NEAR_VAL, FAR_VAL);
// Set view/projection matrices
QMatrix4x4 modelMatrix(coordinatesConverter()->imageToWidgetTransform());
modelMatrix.optimize();
modelMatrix = projectionMatrix * modelMatrix;
d->displayShader->setUniformValue(d->displayShader->location(Uniform::ModelViewProjection), modelMatrix);
QMatrix4x4 textureMatrix;
textureMatrix.setToIdentity();
d->displayShader->setUniformValue(d->displayShader->location(Uniform::TextureMatrix), textureMatrix);
QRectF widgetRect(0,0, width(), height());
QRectF widgetRectInImagePixels = converter->documentToImage(converter->widgetToDocument(widgetRect));
qreal scaleX, scaleY;
converter->imageScale(&scaleX, &scaleY);
d->displayShader->setUniformValue(d->displayShader->location(Uniform::ViewportScale), (GLfloat) scaleX);
d->displayShader->setUniformValue(d->displayShader->location(Uniform::TexelSize), (GLfloat) d->openGLImageTextures->texelSize());
QRect ir = d->openGLImageTextures->storedImageBounds();
QRect wr = widgetRectInImagePixels.toAlignedRect();
if (!d->wrapAroundMode) {
// if we don't want to paint wrapping images, just limit the
// processing area, and the code will handle all the rest
wr &= ir;
}
int firstColumn = d->xToColWithWrapCompensation(wr.left(), ir);
int lastColumn = d->xToColWithWrapCompensation(wr.right(), ir);
int firstRow = d->yToRowWithWrapCompensation(wr.top(), ir);
int lastRow = d->yToRowWithWrapCompensation(wr.bottom(), ir);
int minColumn = d->openGLImageTextures->xToCol(ir.left());
int maxColumn = d->openGLImageTextures->xToCol(ir.right());
int minRow = d->openGLImageTextures->yToRow(ir.top());
int maxRow = d->openGLImageTextures->yToRow(ir.bottom());
int imageColumns = maxColumn - minColumn + 1;
int imageRows = maxRow - minRow + 1;
for (int col = firstColumn; col <= lastColumn; col++) {
for (int row = firstRow; row <= lastRow; row++) {
int effectiveCol = col;
int effectiveRow = row;
QPointF tileWrappingTranslation;
if (effectiveCol > maxColumn || effectiveCol < minColumn) {
int translationStep = floor(qreal(col) / imageColumns);
int originCol = translationStep * imageColumns;
effectiveCol = col - originCol;
tileWrappingTranslation.rx() = translationStep * ir.width();
}
if (effectiveRow > maxRow || effectiveRow < minRow) {
int translationStep = floor(qreal(row) / imageRows);
int originRow = translationStep * imageRows;
effectiveRow = row - originRow;
tileWrappingTranslation.ry() = translationStep * ir.height();
}
KisTextureTile *tile =
d->openGLImageTextures->getTextureTileCR(effectiveCol, effectiveRow);
if (!tile) {
warnUI << "OpenGL: Trying to paint texture tile but it has not been created yet.";
continue;
}
/*
* We create a float rect here to workaround Qt's
* "history reasons" in calculation of right()
* and bottom() coordinates of integer rects.
*/
QRectF textureRect(tile->tileRectInTexturePixels());
QRectF modelRect(tile->tileRectInImagePixels().translated(tileWrappingTranslation.x(), tileWrappingTranslation.y()));
//Setup the geometry for rendering
if (KisOpenGL::hasOpenGL3()) {
rectToVertices(d->vertices, modelRect);
d->quadBuffers[0].bind();
d->quadBuffers[0].write(0, d->vertices, 3 * 6 * sizeof(float));
rectToTexCoords(d->texCoords, textureRect);
d->quadBuffers[1].bind();
d->quadBuffers[1].write(0, d->texCoords, 2 * 6 * sizeof(float));
}
else {
rectToVertices(d->vertices, modelRect);
d->displayShader->enableAttributeArray(PROGRAM_VERTEX_ATTRIBUTE);
d->displayShader->setAttributeArray(PROGRAM_VERTEX_ATTRIBUTE, d->vertices);
rectToTexCoords(d->texCoords, textureRect);
d->displayShader->enableAttributeArray(PROGRAM_TEXCOORD_ATTRIBUTE);
d->displayShader->setAttributeArray(PROGRAM_TEXCOORD_ATTRIBUTE, d->texCoords);
}
if (d->displayFilter) {
glActiveTexture(GL_TEXTURE0 + 1);
glBindTexture(GL_TEXTURE_3D, d->displayFilter->lutTexture());
d->displayShader->setUniformValue(d->displayShader->location(Uniform::Texture1), 1);
}
int currentLodPlane = tile->currentLodPlane();
if (d->displayShader->location(Uniform::FixedLodLevel) >= 0) {
d->displayShader->setUniformValue(d->displayShader->location(Uniform::FixedLodLevel),
(GLfloat) currentLodPlane);
}
glActiveTexture(GL_TEXTURE0);
tile->bindToActiveTexture();
if (currentLodPlane > 0) {
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST);
} else if (SCALE_MORE_OR_EQUAL_TO(scaleX, scaleY, 2.0)) {
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
} else {
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
switch(d->filterMode) {
case KisOpenGL::NearestFilterMode:
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
break;
case KisOpenGL::BilinearFilterMode:
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
break;
case KisOpenGL::TrilinearFilterMode:
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
break;
case KisOpenGL::HighQualityFiltering:
if (SCALE_LESS_THAN(scaleX, scaleY, 0.5)) {
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST);
} else {
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
}
break;
}
}
glDrawArrays(GL_TRIANGLES, 0, 6);
}
}
glBindTexture(GL_TEXTURE_2D, 0);
d->displayShader->release();
glBindBuffer(GL_ARRAY_BUFFER, 0);
}