aboutsummaryrefslogtreecommitdiffstats
path: root/src/quick/scenegraph/qsgbasicimagenode.cpp
diff options
context:
space:
mode:
authorLaszlo Agocs <laszlo.agocs@theqtcompany.com>2016-05-07 13:22:07 +0200
committerLaszlo Agocs <laszlo.agocs@theqtcompany.com>2016-05-07 13:26:27 +0200
commite3716cdf88a09109e368adc4f73fc52ff6325f83 (patch)
treeaae8225ed640befa4a3729e3e11d1e0dd2aaa607 /src/quick/scenegraph/qsgbasicimagenode.cpp
parent6b8a0c932eb60a7839f9d8ae7112c79166e1f49b (diff)
parent69b7ba225007d68e113ee425ad58ce7e186a92c2 (diff)
Merge remote-tracking branch 'origin/dev' into wip/scenegraphng
Diffstat (limited to 'src/quick/scenegraph/qsgbasicimagenode.cpp')
-rw-r--r--src/quick/scenegraph/qsgbasicimagenode.cpp495
1 files changed, 262 insertions, 233 deletions
diff --git a/src/quick/scenegraph/qsgbasicimagenode.cpp b/src/quick/scenegraph/qsgbasicimagenode.cpp
index 0d33e2e24a..36a43b754a 100644
--- a/src/quick/scenegraph/qsgbasicimagenode.cpp
+++ b/src/quick/scenegraph/qsgbasicimagenode.cpp
@@ -200,6 +200,264 @@ static inline void appendQuad(quint16 **indices, quint16 topLeft, quint16 topRig
*(*indices)++ = topLeft;
}
+QSGGeometry *QSGBasicImageNode::updateGeometry(const QRectF &targetRect,
+ const QRectF &innerTargetRect,
+ const QRectF &sourceRect,
+ const QRectF &innerSourceRect,
+ const QRectF &subSourceRect,
+ QSGGeometry *geometry,
+ bool mirror,
+ bool antialiasing)
+{
+ int floorLeft = qFloor(subSourceRect.left());
+ int ceilRight = qCeil(subSourceRect.right());
+ int floorTop = qFloor(subSourceRect.top());
+ int ceilBottom = qCeil(subSourceRect.bottom());
+ int hTiles = ceilRight - floorLeft;
+ int vTiles = ceilBottom - floorTop;
+
+ int hCells = hTiles;
+ int vCells = vTiles;
+ if (innerTargetRect.width() == 0)
+ hCells = 0;
+ if (innerTargetRect.left() != targetRect.left())
+ ++hCells;
+ if (innerTargetRect.right() != targetRect.right())
+ ++hCells;
+ if (innerTargetRect.height() == 0)
+ vCells = 0;
+ if (innerTargetRect.top() != targetRect.top())
+ ++vCells;
+ if (innerTargetRect.bottom() != targetRect.bottom())
+ ++vCells;
+ QVarLengthArray<X, 32> xData(2 * hCells);
+ QVarLengthArray<Y, 32> yData(2 * vCells);
+ X *xs = xData.data();
+ Y *ys = yData.data();
+
+ if (innerTargetRect.left() != targetRect.left()) {
+ xs[0].x = targetRect.left();
+ xs[0].tx = sourceRect.left();
+ xs[1].x = innerTargetRect.left();
+ xs[1].tx = innerSourceRect.left();
+ xs += 2;
+ }
+ if (innerTargetRect.width() != 0) {
+ xs[0].x = innerTargetRect.left();
+ xs[0].tx = innerSourceRect.x() + (subSourceRect.left() - floorLeft) * innerSourceRect.width();
+ ++xs;
+ float b = innerTargetRect.width() / subSourceRect.width();
+ float a = innerTargetRect.x() - subSourceRect.x() * b;
+ for (int i = floorLeft + 1; i <= ceilRight - 1; ++i) {
+ xs[0].x = xs[1].x = a + b * i;
+ xs[0].tx = innerSourceRect.right();
+ xs[1].tx = innerSourceRect.left();
+ xs += 2;
+ }
+ xs[0].x = innerTargetRect.right();
+ xs[0].tx = innerSourceRect.x() + (subSourceRect.right() - ceilRight + 1) * innerSourceRect.width();
+ ++xs;
+ }
+ if (innerTargetRect.right() != targetRect.right()) {
+ xs[0].x = innerTargetRect.right();
+ xs[0].tx = innerSourceRect.right();
+ xs[1].x = targetRect.right();
+ xs[1].tx = sourceRect.right();
+ xs += 2;
+ }
+ Q_ASSERT(xs == xData.data() + xData.size());
+ if (mirror) {
+ float leftPlusRight = targetRect.left() + targetRect.right();
+ int count = xData.size();
+ xs = xData.data();
+ for (int i = 0; i < count >> 1; ++i)
+ qSwap(xs[i], xs[count - 1 - i]);
+ for (int i = 0; i < count; ++i)
+ xs[i].x = leftPlusRight - xs[i].x;
+ }
+
+ if (innerTargetRect.top() != targetRect.top()) {
+ ys[0].y = targetRect.top();
+ ys[0].ty = sourceRect.top();
+ ys[1].y = innerTargetRect.top();
+ ys[1].ty = innerSourceRect.top();
+ ys += 2;
+ }
+ if (innerTargetRect.height() != 0) {
+ ys[0].y = innerTargetRect.top();
+ ys[0].ty = innerSourceRect.y() + (subSourceRect.top() - floorTop) * innerSourceRect.height();
+ ++ys;
+ float b = innerTargetRect.height() / subSourceRect.height();
+ float a = innerTargetRect.y() - subSourceRect.y() * b;
+ for (int i = floorTop + 1; i <= ceilBottom - 1; ++i) {
+ ys[0].y = ys[1].y = a + b * i;
+ ys[0].ty = innerSourceRect.bottom();
+ ys[1].ty = innerSourceRect.top();
+ ys += 2;
+ }
+ ys[0].y = innerTargetRect.bottom();
+ ys[0].ty = innerSourceRect.y() + (subSourceRect.bottom() - ceilBottom + 1) * innerSourceRect.height();
+ ++ys;
+ }
+ if (innerTargetRect.bottom() != targetRect.bottom()) {
+ ys[0].y = innerTargetRect.bottom();
+ ys[0].ty = innerSourceRect.bottom();
+ ys[1].y = targetRect.bottom();
+ ys[1].ty = sourceRect.bottom();
+ ys += 2;
+ }
+ Q_ASSERT(ys == yData.data() + yData.size());
+
+ if (antialiasing) {
+ QSGGeometry *g = geometry;
+ Q_ASSERT(g);
+
+ g->allocate(hCells * vCells * 4 + (hCells + vCells - 1) * 4,
+ hCells * vCells * 6 + (hCells + vCells) * 12);
+ g->setDrawingMode(GL_TRIANGLES);
+ SmoothVertex *vertices = reinterpret_cast<SmoothVertex *>(g->vertexData());
+ memset(vertices, 0, g->vertexCount() * g->sizeOfVertex());
+ quint16 *indices = g->indexDataAsUShort();
+
+ // The deltas are how much the fuzziness can reach into the image.
+ // Only the border vertices are moved by the vertex shader, so the fuzziness
+ // can't reach further into the image than the closest interior vertices.
+ float leftDx = xData.at(1).x - xData.at(0).x;
+ float rightDx = xData.at(xData.size() - 1).x - xData.at(xData.size() - 2).x;
+ float topDy = yData.at(1).y - yData.at(0).y;
+ float bottomDy = yData.at(yData.size() - 1).y - yData.at(yData.size() - 2).y;
+
+ float leftDu = xData.at(1).tx - xData.at(0).tx;
+ float rightDu = xData.at(xData.size() - 1).tx - xData.at(xData.size() - 2).tx;
+ float topDv = yData.at(1).ty - yData.at(0).ty;
+ float bottomDv = yData.at(yData.size() - 1).ty - yData.at(yData.size() - 2).ty;
+
+ if (hCells == 1) {
+ leftDx = rightDx *= 0.5f;
+ leftDu = rightDu *= 0.5f;
+ }
+ if (vCells == 1) {
+ topDy = bottomDy *= 0.5f;
+ topDv = bottomDv *= 0.5f;
+ }
+
+ // This delta is how much the fuzziness can reach out from the image.
+ float delta = float(qAbs(targetRect.width()) < qAbs(targetRect.height())
+ ? targetRect.width() : targetRect.height()) * 0.5f;
+
+ quint16 index = 0;
+ ys = yData.data();
+ for (int j = 0; j < vCells; ++j, ys += 2) {
+ xs = xData.data();
+ bool isTop = j == 0;
+ bool isBottom = j == vCells - 1;
+ for (int i = 0; i < hCells; ++i, xs += 2) {
+ bool isLeft = i == 0;
+ bool isRight = i == hCells - 1;
+
+ SmoothVertex *v = vertices + index;
+
+ quint16 topLeft = index;
+ for (int k = (isTop || isLeft ? 2 : 1); k--; ++v, ++index) {
+ v->x = xs[0].x;
+ v->u = xs[0].tx;
+ v->y = ys[0].y;
+ v->v = ys[0].ty;
+ }
+
+ quint16 topRight = index;
+ for (int k = (isTop || isRight ? 2 : 1); k--; ++v, ++index) {
+ v->x = xs[1].x;
+ v->u = xs[1].tx;
+ v->y = ys[0].y;
+ v->v = ys[0].ty;
+ }
+
+ quint16 bottomLeft = index;
+ for (int k = (isBottom || isLeft ? 2 : 1); k--; ++v, ++index) {
+ v->x = xs[0].x;
+ v->u = xs[0].tx;
+ v->y = ys[1].y;
+ v->v = ys[1].ty;
+ }
+
+ quint16 bottomRight = index;
+ for (int k = (isBottom || isRight ? 2 : 1); k--; ++v, ++index) {
+ v->x = xs[1].x;
+ v->u = xs[1].tx;
+ v->y = ys[1].y;
+ v->v = ys[1].ty;
+ }
+
+ appendQuad(&indices, topLeft, topRight, bottomLeft, bottomRight);
+
+ if (isTop) {
+ vertices[topLeft].dy = vertices[topRight].dy = topDy;
+ vertices[topLeft].dv = vertices[topRight].dv = topDv;
+ vertices[topLeft + 1].dy = vertices[topRight + 1].dy = -delta;
+ appendQuad(&indices, topLeft + 1, topRight + 1, topLeft, topRight);
+ }
+
+ if (isBottom) {
+ vertices[bottomLeft].dy = vertices[bottomRight].dy = -bottomDy;
+ vertices[bottomLeft].dv = vertices[bottomRight].dv = -bottomDv;
+ vertices[bottomLeft + 1].dy = vertices[bottomRight + 1].dy = delta;
+ appendQuad(&indices, bottomLeft, bottomRight, bottomLeft + 1, bottomRight + 1);
+ }
+
+ if (isLeft) {
+ vertices[topLeft].dx = vertices[bottomLeft].dx = leftDx;
+ vertices[topLeft].du = vertices[bottomLeft].du = leftDu;
+ vertices[topLeft + 1].dx = vertices[bottomLeft + 1].dx = -delta;
+ appendQuad(&indices, topLeft + 1, topLeft, bottomLeft + 1, bottomLeft);
+ }
+
+ if (isRight) {
+ vertices[topRight].dx = vertices[bottomRight].dx = -rightDx;
+ vertices[topRight].du = vertices[bottomRight].du = -rightDu;
+ vertices[topRight + 1].dx = vertices[bottomRight + 1].dx = delta;
+ appendQuad(&indices, topRight, topRight + 1, bottomRight, bottomRight + 1);
+ }
+ }
+ }
+
+ Q_ASSERT(index == g->vertexCount());
+ Q_ASSERT(indices - g->indexCount() == g->indexData());
+ } else {
+ if (!geometry) {
+ geometry = new QSGGeometry(QSGGeometry::defaultAttributes_TexturedPoint2D(),
+ hCells * vCells * 4, hCells * vCells * 6,
+ GL_UNSIGNED_SHORT);
+ } else {
+ geometry->allocate(hCells * vCells * 4, hCells * vCells * 6);
+ }
+ geometry->setDrawingMode(GL_TRIANGLES);
+ QSGGeometry::TexturedPoint2D *vertices = geometry->vertexDataAsTexturedPoint2D();
+ ys = yData.data();
+ for (int j = 0; j < vCells; ++j, ys += 2) {
+ xs = xData.data();
+ for (int i = 0; i < hCells; ++i, xs += 2) {
+ vertices[0].x = vertices[2].x = xs[0].x;
+ vertices[0].tx = vertices[2].tx = xs[0].tx;
+ vertices[1].x = vertices[3].x = xs[1].x;
+ vertices[1].tx = vertices[3].tx = xs[1].tx;
+
+ vertices[0].y = vertices[1].y = ys[0].y;
+ vertices[0].ty = vertices[1].ty = ys[0].ty;
+ vertices[2].y = vertices[3].y = ys[1].y;
+ vertices[2].ty = vertices[3].ty = ys[1].ty;
+
+ vertices += 4;
+ }
+ }
+
+ quint16 *indices = geometry->indexDataAsUShort();
+ for (int i = 0; i < 4 * vCells * hCells; i += 4)
+ appendQuad(&indices, i, i + 1, i + 2, i + 3);
+ }
+ return geometry;
+}
+
void QSGBasicImageNode::updateGeometry()
{
Q_ASSERT(!m_targetRect.isEmpty());
@@ -288,239 +546,10 @@ void QSGBasicImageNode::updateGeometry()
QSGGeometry::updateTexturedRectGeometry(&m_geometry, m_targetRect, sr);
}
} else {
- int hCells = hTiles;
- int vCells = vTiles;
- if (m_innerTargetRect.width() == 0)
- hCells = 0;
- if (m_innerTargetRect.left() != m_targetRect.left())
- ++hCells;
- if (m_innerTargetRect.right() != m_targetRect.right())
- ++hCells;
- if (m_innerTargetRect.height() == 0)
- vCells = 0;
- if (m_innerTargetRect.top() != m_targetRect.top())
- ++vCells;
- if (m_innerTargetRect.bottom() != m_targetRect.bottom())
- ++vCells;
- QVarLengthArray<X, 32> xData(2 * hCells);
- QVarLengthArray<Y, 32> yData(2 * vCells);
- X *xs = xData.data();
- Y *ys = yData.data();
-
- if (m_innerTargetRect.left() != m_targetRect.left()) {
- xs[0].x = m_targetRect.left();
- xs[0].tx = sourceRect.left();
- xs[1].x = m_innerTargetRect.left();
- xs[1].tx = innerSourceRect.left();
- xs += 2;
- }
- if (m_innerTargetRect.width() != 0) {
- xs[0].x = m_innerTargetRect.left();
- xs[0].tx = innerSourceRect.x() + (m_subSourceRect.left() - floorLeft) * innerSourceRect.width();
- ++xs;
- float b = m_innerTargetRect.width() / m_subSourceRect.width();
- float a = m_innerTargetRect.x() - m_subSourceRect.x() * b;
- for (int i = floorLeft + 1; i <= ceilRight - 1; ++i) {
- xs[0].x = xs[1].x = a + b * i;
- xs[0].tx = innerSourceRect.right();
- xs[1].tx = innerSourceRect.left();
- xs += 2;
- }
- xs[0].x = m_innerTargetRect.right();
- xs[0].tx = innerSourceRect.x() + (m_subSourceRect.right() - ceilRight + 1) * innerSourceRect.width();
- ++xs;
- }
- if (m_innerTargetRect.right() != m_targetRect.right()) {
- xs[0].x = m_innerTargetRect.right();
- xs[0].tx = innerSourceRect.right();
- xs[1].x = m_targetRect.right();
- xs[1].tx = sourceRect.right();
- xs += 2;
- }
- Q_ASSERT(xs == xData.data() + xData.size());
- if (m_mirror) {
- float leftPlusRight = m_targetRect.left() + m_targetRect.right();
- int count = xData.size();
- xs = xData.data();
- for (int i = 0; i < count >> 1; ++i)
- qSwap(xs[i], xs[count - 1 - i]);
- for (int i = 0; i < count; ++i)
- xs[i].x = leftPlusRight - xs[i].x;
- }
-
- if (m_innerTargetRect.top() != m_targetRect.top()) {
- ys[0].y = m_targetRect.top();
- ys[0].ty = sourceRect.top();
- ys[1].y = m_innerTargetRect.top();
- ys[1].ty = innerSourceRect.top();
- ys += 2;
- }
- if (m_innerTargetRect.height() != 0) {
- ys[0].y = m_innerTargetRect.top();
- ys[0].ty = innerSourceRect.y() + (m_subSourceRect.top() - floorTop) * innerSourceRect.height();
- ++ys;
- float b = m_innerTargetRect.height() / m_subSourceRect.height();
- float a = m_innerTargetRect.y() - m_subSourceRect.y() * b;
- for (int i = floorTop + 1; i <= ceilBottom - 1; ++i) {
- ys[0].y = ys[1].y = a + b * i;
- ys[0].ty = innerSourceRect.bottom();
- ys[1].ty = innerSourceRect.top();
- ys += 2;
- }
- ys[0].y = m_innerTargetRect.bottom();
- ys[0].ty = innerSourceRect.y() + (m_subSourceRect.bottom() - ceilBottom + 1) * innerSourceRect.height();
- ++ys;
- }
- if (m_innerTargetRect.bottom() != m_targetRect.bottom()) {
- ys[0].y = m_innerTargetRect.bottom();
- ys[0].ty = innerSourceRect.bottom();
- ys[1].y = m_targetRect.bottom();
- ys[1].ty = sourceRect.bottom();
- ys += 2;
- }
- Q_ASSERT(ys == yData.data() + yData.size());
-
- if (m_antialiasing) {
- QSGGeometry *g = geometry();
- Q_ASSERT(g != &m_geometry);
-
- g->allocate(hCells * vCells * 4 + (hCells + vCells - 1) * 4,
- hCells * vCells * 6 + (hCells + vCells) * 12);
- g->setDrawingMode(QSGGeometry::DrawTriangles);
- SmoothVertex *vertices = reinterpret_cast<SmoothVertex *>(g->vertexData());
- memset(vertices, 0, g->vertexCount() * g->sizeOfVertex());
- quint16 *indices = g->indexDataAsUShort();
-
- // The deltas are how much the fuzziness can reach into the image.
- // Only the border vertices are moved by the vertex shader, so the fuzziness
- // can't reach further into the image than the closest interior vertices.
- float leftDx = xData.at(1).x - xData.at(0).x;
- float rightDx = xData.at(xData.size() - 1).x - xData.at(xData.size() - 2).x;
- float topDy = yData.at(1).y - yData.at(0).y;
- float bottomDy = yData.at(yData.size() - 1).y - yData.at(yData.size() - 2).y;
-
- float leftDu = xData.at(1).tx - xData.at(0).tx;
- float rightDu = xData.at(xData.size() - 1).tx - xData.at(xData.size() - 2).tx;
- float topDv = yData.at(1).ty - yData.at(0).ty;
- float bottomDv = yData.at(yData.size() - 1).ty - yData.at(yData.size() - 2).ty;
-
- if (hCells == 1) {
- leftDx = rightDx *= 0.5f;
- leftDu = rightDu *= 0.5f;
- }
- if (vCells == 1) {
- topDy = bottomDy *= 0.5f;
- topDv = bottomDv *= 0.5f;
- }
-
- // This delta is how much the fuzziness can reach out from the image.
- float delta = float(qAbs(m_targetRect.width()) < qAbs(m_targetRect.height())
- ? m_targetRect.width() : m_targetRect.height()) * 0.5f;
-
- quint16 index = 0;
- ys = yData.data();
- for (int j = 0; j < vCells; ++j, ys += 2) {
- xs = xData.data();
- bool isTop = j == 0;
- bool isBottom = j == vCells - 1;
- for (int i = 0; i < hCells; ++i, xs += 2) {
- bool isLeft = i == 0;
- bool isRight = i == hCells - 1;
-
- SmoothVertex *v = vertices + index;
-
- quint16 topLeft = index;
- for (int k = (isTop || isLeft ? 2 : 1); k--; ++v, ++index) {
- v->x = xs[0].x;
- v->u = xs[0].tx;
- v->y = ys[0].y;
- v->v = ys[0].ty;
- }
-
- quint16 topRight = index;
- for (int k = (isTop || isRight ? 2 : 1); k--; ++v, ++index) {
- v->x = xs[1].x;
- v->u = xs[1].tx;
- v->y = ys[0].y;
- v->v = ys[0].ty;
- }
-
- quint16 bottomLeft = index;
- for (int k = (isBottom || isLeft ? 2 : 1); k--; ++v, ++index) {
- v->x = xs[0].x;
- v->u = xs[0].tx;
- v->y = ys[1].y;
- v->v = ys[1].ty;
- }
-
- quint16 bottomRight = index;
- for (int k = (isBottom || isRight ? 2 : 1); k--; ++v, ++index) {
- v->x = xs[1].x;
- v->u = xs[1].tx;
- v->y = ys[1].y;
- v->v = ys[1].ty;
- }
-
- appendQuad(&indices, topLeft, topRight, bottomLeft, bottomRight);
-
- if (isTop) {
- vertices[topLeft].dy = vertices[topRight].dy = topDy;
- vertices[topLeft].dv = vertices[topRight].dv = topDv;
- vertices[topLeft + 1].dy = vertices[topRight + 1].dy = -delta;
- appendQuad(&indices, topLeft + 1, topRight + 1, topLeft, topRight);
- }
-
- if (isBottom) {
- vertices[bottomLeft].dy = vertices[bottomRight].dy = -bottomDy;
- vertices[bottomLeft].dv = vertices[bottomRight].dv = -bottomDv;
- vertices[bottomLeft + 1].dy = vertices[bottomRight + 1].dy = delta;
- appendQuad(&indices, bottomLeft, bottomRight, bottomLeft + 1, bottomRight + 1);
- }
-
- if (isLeft) {
- vertices[topLeft].dx = vertices[bottomLeft].dx = leftDx;
- vertices[topLeft].du = vertices[bottomLeft].du = leftDu;
- vertices[topLeft + 1].dx = vertices[bottomLeft + 1].dx = -delta;
- appendQuad(&indices, topLeft + 1, topLeft, bottomLeft + 1, bottomLeft);
- }
-
- if (isRight) {
- vertices[topRight].dx = vertices[bottomRight].dx = -rightDx;
- vertices[topRight].du = vertices[bottomRight].du = -rightDu;
- vertices[topRight + 1].dx = vertices[bottomRight + 1].dx = delta;
- appendQuad(&indices, topRight, topRight + 1, bottomRight, bottomRight + 1);
- }
- }
- }
-
- Q_ASSERT(index == g->vertexCount());
- Q_ASSERT(indices - g->indexCount() == g->indexData());
- } else {
- m_geometry.allocate(hCells * vCells * 4, hCells * vCells * 6);
- m_geometry.setDrawingMode(QSGGeometry::DrawTriangles);
- QSGGeometry::TexturedPoint2D *vertices = m_geometry.vertexDataAsTexturedPoint2D();
- ys = yData.data();
- for (int j = 0; j < vCells; ++j, ys += 2) {
- xs = xData.data();
- for (int i = 0; i < hCells; ++i, xs += 2) {
- vertices[0].x = vertices[2].x = xs[0].x;
- vertices[0].tx = vertices[2].tx = xs[0].tx;
- vertices[1].x = vertices[3].x = xs[1].x;
- vertices[1].tx = vertices[3].tx = xs[1].tx;
-
- vertices[0].y = vertices[1].y = ys[0].y;
- vertices[0].ty = vertices[1].ty = ys[0].ty;
- vertices[2].y = vertices[3].y = ys[1].y;
- vertices[2].ty = vertices[3].ty = ys[1].ty;
-
- vertices += 4;
- }
- }
-
- quint16 *indices = m_geometry.indexDataAsUShort();
- for (int i = 0; i < 4 * vCells * hCells; i += 4)
- appendQuad(&indices, i, i + 1, i + 2, i + 3);
- }
+ QSGGeometry *g = m_antialiasing ? geometry() : &m_geometry;
+ updateGeometry(m_targetRect, m_innerTargetRect,
+ sourceRect, innerSourceRect, m_subSourceRect,
+ g, m_mirror, m_antialiasing);
}
}
markDirty(DirtyGeometry);