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-rw-r--r--bba/main.cc2
-rw-r--r--common/nextpnr.h28
-rw-r--r--gui/fpgaviewwidget.cc500
-rw-r--r--gui/fpgaviewwidget.h228
-rw-r--r--gui/lineshader.cc236
-rw-r--r--gui/lineshader.h209
-rw-r--r--ice40/arch.cc28
-rw-r--r--ice40/gfx.cc6
-rw-r--r--ice40/main.cc4
9 files changed, 659 insertions, 582 deletions
diff --git a/bba/main.cc b/bba/main.cc
index dd0caf1a..263cf39e 100644
--- a/bba/main.cc
+++ b/bba/main.cc
@@ -351,7 +351,7 @@ int main(int argc, char **argv)
break;
case TOK_REF:
if (s.tokenComments[i].empty())
- printf("ref %s %s\n", labelNames[v].c_str());
+ printf("ref %s\n", labelNames[v].c_str());
else
printf("ref %-26s %s\n", labelNames[v].c_str(), s.tokenComments[i].c_str());
break;
diff --git a/common/nextpnr.h b/common/nextpnr.h
index e9e491f4..5e32d5b6 100644
--- a/common/nextpnr.h
+++ b/common/nextpnr.h
@@ -145,21 +145,25 @@ struct GraphicElement
{
enum type_t
{
- G_NONE,
- G_LINE,
- G_ARROW,
- G_BOX,
- G_CIRCLE,
- G_LABEL
- } type = G_NONE;
+ TYPE_NONE,
+ TYPE_LINE,
+ TYPE_ARROW,
+ TYPE_BOX,
+ TYPE_CIRCLE,
+ TYPE_LABEL,
+
+ TYPE_MAX
+ } type = TYPE_NONE;
enum style_t
{
- G_FRAME, // Static "frame". Contrast between G_INACTIVE and G_ACTIVE
- G_HIDDEN, // Only display when object is selected or highlighted
- G_INACTIVE, // Render using low-contrast color
- G_ACTIVE, // Render using high-contast color
- } style = G_FRAME;
+ STYLE_FRAME, // Static "frame". Contrast between STYLE_INACTIVE and STYLE_ACTIVE
+ STYLE_HIDDEN, // Only display when object is selected or highlighted
+ STYLE_INACTIVE, // Render using low-contrast color
+ STYLE_ACTIVE, // Render using high-contast color
+
+ STYLE_MAX
+ } style = STYLE_FRAME;
float x1 = 0, y1 = 0, x2 = 0, y2 = 0, z = 0;
std::string text;
diff --git a/gui/fpgaviewwidget.cc b/gui/fpgaviewwidget.cc
index 7ee2b4f9..ed3a0bce 100644
--- a/gui/fpgaviewwidget.cc
+++ b/gui/fpgaviewwidget.cc
@@ -31,220 +31,11 @@
NEXTPNR_NAMESPACE_BEGIN
-void PolyLine::buildPoint(LineShaderData *building, const QVector2D *prev, const QVector2D *cur,
- const QVector2D *next) const
-{
- // buildPoint emits two vertices per line point, along with normals to move
- // them the right directio when rendering and miter to compensate for
- // bends.
-
- if (cur == nullptr) {
- // BUG
- return;
- }
-
- if (prev == nullptr && next == nullptr) {
- // BUG
- return;
- }
-
- // TODO(q3k): fast path for vertical/horizontal lines?
-
- // TODO(q3k): consider moving some of the linear algebra to the GPU,
- // they're better at this than poor old CPUs.
-
- // Build two unit vectors pointing in the direction of the two segments
- // defined by (prev, cur) and (cur, next)
- QVector2D dprev, dnext;
- if (prev == nullptr) {
- dnext = *next - *cur;
- dprev = dnext;
- } else if (next == nullptr) {
- dprev = *cur - *prev;
- dnext = dprev;
- } else {
- dprev = *cur - *prev;
- dnext = *next - *cur;
- }
- dprev.normalize();
- dnext.normalize();
-
- // Calculate tangent unit vector.
- QVector2D tangent(dprev + dnext);
- tangent.normalize();
-
- // Calculate normal to tangent - this is the line on which the vectors need
- // to be pushed to build a thickened line.
- const QVector2D tangent_normal = QVector2D(-tangent.y(), tangent.x());
-
- // Calculate normal to one of the lines.
- const QVector2D dprev_normal = QVector2D(-dprev.y(), dprev.x());
- // https://people.eecs.berkeley.edu/~sequin/CS184/IMGS/Sweep_PolyLine.jpg
- // (the ^-1 is performed in the shader)
- const float miter = QVector2D::dotProduct(tangent_normal, dprev_normal);
-
- const float x = cur->x();
- const float y = cur->y();
- const float mx = tangent_normal.x();
- const float my = tangent_normal.y();
-
- // Push back 'left' vertex.
- building->vertices.push_back(Vertex2DPOD(x, y));
- building->normals.push_back(Vertex2DPOD(mx, my));
- building->miters.push_back(miter);
-
- // Push back 'right' vertex.
- building->vertices.push_back(Vertex2DPOD(x, y));
- building->normals.push_back(Vertex2DPOD(mx, my));
- building->miters.push_back(-miter);
-}
-
-void PolyLine::build(LineShaderData &target) const
-{
- if (points_.size() < 2) {
- return;
- }
- const QVector2D *first = &points_.front();
- const QVector2D *last = &points_.back();
-
- // Index number of vertices, used to build the index buffer.
- unsigned int startIndex = target.vertices.size();
- unsigned int index = startIndex;
-
- // For every point on the line, call buildPoint with (prev, point, next).
- // If we're building a closed line, prev/next wrap around. Otherwise
- // they are passed as nullptr and buildPoint interprets that accordinglu.
- const QVector2D *prev = nullptr;
-
- // Loop iterator used to ensure next is valid.
- unsigned int i = 0;
- for (const QVector2D &point : points_) {
- const QVector2D *next = nullptr;
- if (++i < points_.size()) {
- next = (&point + 1);
- }
-
- // If the line is closed, wrap around. Otherwise, pass nullptr.
- if (prev == nullptr && closed_) {
- buildPoint(&target, last, &point, next);
- } else if (next == nullptr && closed_) {
- buildPoint(&target, prev, &point, first);
- } else {
- buildPoint(&target, prev, &point, next);
- }
-
- // If we have a prev point relative to cur, build a pair of triangles
- // to render vertices into lines.
- if (prev != nullptr) {
- target.indices.push_back(index);
- target.indices.push_back(index + 1);
- target.indices.push_back(index + 2);
-
- target.indices.push_back(index + 2);
- target.indices.push_back(index + 1);
- target.indices.push_back(index + 3);
-
- index += 2;
- }
- prev = &point;
- }
-
- // If we're closed, build two more vertices that loop the line around.
- if (closed_) {
- target.indices.push_back(index);
- target.indices.push_back(index + 1);
- target.indices.push_back(startIndex);
-
- target.indices.push_back(startIndex);
- target.indices.push_back(index + 1);
- target.indices.push_back(startIndex + 1);
- }
-}
-
-bool LineShader::compile(void)
-{
- program_ = new QOpenGLShaderProgram(parent_);
- program_->addShaderFromSourceCode(QOpenGLShader::Vertex, vertexShaderSource_);
- program_->addShaderFromSourceCode(QOpenGLShader::Fragment, fragmentShaderSource_);
- if (!program_->link()) {
- printf("could not link program: %s\n", program_->log().toStdString().c_str());
- return false;
- }
-
- if (!vao_.create())
- log_abort();
- vao_.bind();
-
- if (!buffers_.position.create())
- log_abort();
- if (!buffers_.normal.create())
- log_abort();
- if (!buffers_.miter.create())
- log_abort();
- if (!buffers_.index.create())
- log_abort();
-
- attributes_.position = program_->attributeLocation("position");
- attributes_.normal = program_->attributeLocation("normal");
- attributes_.miter = program_->attributeLocation("miter");
- uniforms_.thickness = program_->uniformLocation("thickness");
- uniforms_.projection = program_->uniformLocation("projection");
- uniforms_.color = program_->uniformLocation("color");
-
- vao_.release();
- return true;
-}
-
-void LineShader::draw(const LineShaderData &line, const QColor &color, float thickness, const QMatrix4x4 &projection)
-{
- auto gl = QOpenGLContext::currentContext()->functions();
- if (line.vertices.size() == 0)
- return;
- vao_.bind();
- program_->bind();
-
- buffers_.position.bind();
- buffers_.position.allocate(&line.vertices[0], sizeof(Vertex2DPOD) * line.vertices.size());
-
- buffers_.normal.bind();
- buffers_.normal.allocate(&line.normals[0], sizeof(Vertex2DPOD) * line.normals.size());
-
- buffers_.miter.bind();
- buffers_.miter.allocate(&line.miters[0], sizeof(GLfloat) * line.miters.size());
-
- buffers_.index.bind();
- buffers_.index.allocate(&line.indices[0], sizeof(GLuint) * line.indices.size());
-
- program_->setUniformValue(uniforms_.projection, projection);
- program_->setUniformValue(uniforms_.thickness, thickness);
- program_->setUniformValue(uniforms_.color, color.redF(), color.greenF(), color.blueF(), color.alphaF());
-
- buffers_.position.bind();
- program_->enableAttributeArray("position");
- gl->glVertexAttribPointer(attributes_.position, 2, GL_FLOAT, GL_FALSE, 0, (void *)0);
-
- buffers_.normal.bind();
- program_->enableAttributeArray("normal");
- gl->glVertexAttribPointer(attributes_.normal, 2, GL_FLOAT, GL_FALSE, 0, (void *)0);
-
- buffers_.miter.bind();
- program_->enableAttributeArray("miter");
- gl->glVertexAttribPointer(attributes_.miter, 1, GL_FLOAT, GL_FALSE, 0, (void *)0);
-
- buffers_.index.bind();
- gl->glDrawElements(GL_TRIANGLES, line.indices.size(), GL_UNSIGNED_INT, (void *)0);
-
- program_->disableAttributeArray("miter");
- program_->disableAttributeArray("normal");
- program_->disableAttributeArray("position");
-
- program_->release();
- vao_.release();
-}
-
-FPGAViewWidget::FPGAViewWidget(QWidget *parent)
- : QOpenGLWidget(parent), lineShader_(this), zoom_(500.f), ctx_(nullptr), paintTimer_(this),
- rendererData_(new FPGAViewWidget::RendererData), rendererArgs_(new FPGAViewWidget::RendererArgs)
+FPGAViewWidget::FPGAViewWidget(QWidget *parent) :
+ QOpenGLWidget(parent), ctx_(nullptr), paintTimer_(this),
+ lineShader_(this), zoom_(500.0f),
+ rendererData_(new FPGAViewWidget::RendererData),
+ rendererArgs_(new FPGAViewWidget::RendererArgs)
{
colors_.background = QColor("#000000");
colors_.grid = QColor("#333");
@@ -311,68 +102,49 @@ void FPGAViewWidget::initializeGL()
0.0);
}
-void FPGAViewWidget::drawDecal(LineShaderData &out, const DecalXY &decal)
+void FPGAViewWidget::drawGraphicElement(LineShaderData &out, const GraphicElement &el, float x, float y)
{
const float scale = 1.0;
+
+ if (el.type == GraphicElement::TYPE_BOX) {
+ auto line = PolyLine(true);
+ line.point(x + scale * el.x1, y + scale * el.y1);
+ line.point(x + scale * el.x2, y + scale * el.y1);
+ line.point(x + scale * el.x2, y + scale * el.y2);
+ line.point(x + scale * el.x1, y + scale * el.y2);
+ line.build(out);
+ }
+
+ if (el.type == GraphicElement::TYPE_LINE || el.type == GraphicElement::TYPE_ARROW) {
+ PolyLine(x + scale * el.x1, y + scale * el.y1, x + scale * el.x2, y + scale * el.y2)
+ .build(out);
+ }
+}
+
+void FPGAViewWidget::drawDecal(LineShaderData &out, const DecalXY &decal)
+{
float offsetX = decal.x;
float offsetY = decal.y;
for (auto &el : ctx_->getDecalGraphics(decal.decal)) {
-
- if (el.type == GraphicElement::G_BOX) {
- auto line = PolyLine(true);
- line.point(offsetX + scale * el.x1, offsetY + scale * el.y1);
- line.point(offsetX + scale * el.x2, offsetY + scale * el.y1);
- line.point(offsetX + scale * el.x2, offsetY + scale * el.y2);
- line.point(offsetX + scale * el.x1, offsetY + scale * el.y2);
- line.build(out);
- }
-
- if (el.type == GraphicElement::G_LINE || el.type == GraphicElement::G_ARROW) {
- PolyLine(offsetX + scale * el.x1, offsetY + scale * el.y1, offsetX + scale * el.x2, offsetY + scale * el.y2)
- .build(out);
- }
+ drawGraphicElement(out, el, offsetX, offsetY);
}
}
-void FPGAViewWidget::drawDecal(LineShaderData out[], const DecalXY &decal)
+void FPGAViewWidget::drawArchDecal(LineShaderData out[GraphicElement::STYLE_MAX], const DecalXY &decal)
{
- const float scale = 1.0;
- float offsetX = 0.0, offsetY = 0.0;
+ float offsetX = decal.x;
+ float offsetY = decal.y;
for (auto &el : ctx_->getDecalGraphics(decal.decal)) {
- offsetX = decal.x;
- offsetY = decal.y;
-
- if (el.type == GraphicElement::G_BOX) {
- auto line = PolyLine(true);
- line.point(offsetX + scale * el.x1, offsetY + scale * el.y1);
- line.point(offsetX + scale * el.x2, offsetY + scale * el.y1);
- line.point(offsetX + scale * el.x2, offsetY + scale * el.y2);
- line.point(offsetX + scale * el.x1, offsetY + scale * el.y2);
- switch (el.style) {
- case GraphicElement::G_FRAME:
- case GraphicElement::G_INACTIVE:
- case GraphicElement::G_ACTIVE:
- line.build(out[el.style]);
- break;
- default:
- break;
- }
- }
-
- if (el.type == GraphicElement::G_LINE || el.type == GraphicElement::G_ARROW) {
- auto line = PolyLine(offsetX + scale * el.x1, offsetY + scale * el.y1, offsetX + scale * el.x2,
- offsetY + scale * el.y2);
- switch (el.style) {
- case GraphicElement::G_FRAME:
- case GraphicElement::G_INACTIVE:
- case GraphicElement::G_ACTIVE:
- line.build(out[el.style]);
- break;
- default:
- break;
- }
+ switch (el.style) {
+ case GraphicElement::STYLE_FRAME:
+ case GraphicElement::STYLE_INACTIVE:
+ case GraphicElement::STYLE_ACTIVE:
+ drawGraphicElement(out[el.style], el, offsetX, offsetY);
+ break;
+ default:
+ break;
}
}
}
@@ -402,24 +174,28 @@ void FPGAViewWidget::paintGL()
float thick1Px = mouseToWorldDimensions(1, 0).x();
float thick11Px = mouseToWorldDimensions(1.1, 0).x();
- // Draw grid.
+ // Render grid.
auto grid = LineShaderData();
for (float i = -100.0f; i < 100.0f; i += 1.0f) {
PolyLine(-100.0f, i, 100.0f, i).build(grid);
PolyLine(i, -100.0f, i, 100.0f).build(grid);
}
+ // Draw grid.
lineShader_.draw(grid, colors_.grid, thick1Px, matrix);
rendererDataLock_.lock();
- lineShader_.draw(rendererData_->decals[0], colors_.frame, thick11Px, matrix);
- lineShader_.draw(rendererData_->decals[1], colors_.hidden, thick11Px, matrix);
- lineShader_.draw(rendererData_->decals[2], colors_.inactive, thick11Px, matrix);
- lineShader_.draw(rendererData_->decals[3], colors_.active, thick11Px, matrix);
+ // Render Arch graphics.
+ lineShader_.draw(rendererData_->gfxByStyle[GraphicElement::STYLE_FRAME], colors_.frame, thick11Px, matrix);
+ lineShader_.draw(rendererData_->gfxByStyle[GraphicElement::STYLE_HIDDEN], colors_.hidden, thick11Px, matrix);
+ lineShader_.draw(rendererData_->gfxByStyle[GraphicElement::STYLE_INACTIVE], colors_.inactive, thick11Px, matrix);
+ lineShader_.draw(rendererData_->gfxByStyle[GraphicElement::STYLE_ACTIVE], colors_.active, thick11Px, matrix);
+
+ // Draw highlighted items.
for (int i = 0; i < 8; i++)
- lineShader_.draw(rendererData_->highlighted[i], colors_.highlight[i], thick11Px, matrix);
+ lineShader_.draw(rendererData_->gfxHighlighted[i], colors_.highlight[i], thick11Px, matrix);
- lineShader_.draw(rendererData_->selected, colors_.selected, thick11Px, matrix);
+ lineShader_.draw(rendererData_->gfxSelected, colors_.selected, thick11Px, matrix);
rendererDataLock_.unlock();
}
@@ -430,125 +206,151 @@ void FPGAViewWidget::renderLines(void)
if (ctx_ == nullptr)
return;
- ctx_->lock_ui();
-
- // For now, collapse any decal changes into change of all decals.
- // TODO(q3k): fix this
- bool decalsChanged = false;
- if (ctx_->allUiReload) {
- ctx_->allUiReload = false;
- decalsChanged = true;
- }
- if (ctx_->frameUiReload) {
- ctx_->frameUiReload = false;
- decalsChanged = true;
- }
- if (ctx_->belUiReload.size() > 0) {
- ctx_->belUiReload.clear();
- decalsChanged = true;
- }
- if (ctx_->wireUiReload.size() > 0) {
- ctx_->wireUiReload.clear();
- decalsChanged = true;
- }
- if (ctx_->pipUiReload.size() > 0) {
- ctx_->pipUiReload.clear();
- decalsChanged = true;
- }
- if (ctx_->groupUiReload.size() > 0) {
- ctx_->groupUiReload.clear();
- decalsChanged = true;
- }
-
- // Local copy of decals, taken as fast as possible to not block the P&R.
- std::vector<std::pair<BelId, DecalXY>> belDecals;
+ // Data from Context needed to render all decals.
+ std::vector<DecalXY> belDecals;
std::vector<DecalXY> wireDecals;
std::vector<DecalXY> pipDecals;
std::vector<DecalXY> groupDecals;
-
- if (decalsChanged) {
- for (auto bel : ctx_->getBels()) {
- belDecals.push_back(std::pair<BelId, DecalXY>(bel, ctx_->getBelDecal(bel)));
+ bool decalsChanged = false;
+ {
+ // Take the UI/Normal mutex on the Context, copy over all we need as
+ // fast as we can.
+ std::lock_guard<std::mutex> lock_ui(ctx_->ui_mutex);
+ std::lock_guard<std::mutex> lock(ctx_->mutex);
+
+ // For now, collapse any decal changes into change of all decals.
+ // TODO(q3k): fix this
+ if (ctx_->allUiReload) {
+ ctx_->allUiReload = false;
+ decalsChanged = true;
}
- for (auto wire : ctx_->getWires()) {
- wireDecals.push_back(ctx_->getWireDecal(wire));
+ if (ctx_->frameUiReload) {
+ ctx_->frameUiReload = false;
+ decalsChanged = true;
}
- for (auto pip : ctx_->getPips()) {
- pipDecals.push_back(ctx_->getPipDecal(pip));
+ if (ctx_->belUiReload.size() > 0) {
+ ctx_->belUiReload.clear();
+ decalsChanged = true;
}
- for (auto group : ctx_->getGroups()) {
- groupDecals.push_back(ctx_->getGroupDecal(group));
+ if (ctx_->wireUiReload.size() > 0) {
+ ctx_->wireUiReload.clear();
+ decalsChanged = true;
+ }
+ if (ctx_->pipUiReload.size() > 0) {
+ ctx_->pipUiReload.clear();
+ decalsChanged = true;
+ }
+ if (ctx_->groupUiReload.size() > 0) {
+ ctx_->groupUiReload.clear();
+ decalsChanged = true;
+ }
+
+ // Local copy of decals, taken as fast as possible to not block the P&R.
+ if (decalsChanged) {
+ for (auto bel : ctx_->getBels()) {
+ belDecals.push_back(ctx_->getBelDecal(bel));
+ }
+ for (auto wire : ctx_->getWires()) {
+ wireDecals.push_back(ctx_->getWireDecal(wire));
+ }
+ for (auto pip : ctx_->getPips()) {
+ pipDecals.push_back(ctx_->getPipDecal(pip));
+ }
+ for (auto group : ctx_->getGroups()) {
+ groupDecals.push_back(ctx_->getGroupDecal(group));
+ }
}
}
- ctx_->unlock_ui();
- rendererArgsLock_.lock();
- auto selectedItems = rendererArgs_->selectedItems;
- auto highlightedItems = rendererArgs_->highlightedItems;
- auto highlightedOrSelectedChanged = rendererArgs_->highlightedOrSelectedChanged;
- rendererArgs_->highlightedOrSelectedChanged = false;
- rendererArgsLock_.unlock();
+ // Arguments from the main UI thread on what we should render.
+ std::vector<DecalXY> selectedDecals;
+ std::vector<DecalXY> highlightedDecals[8];
+ bool highlightedOrSelectedChanged;
+ {
+ // Take the renderer arguments lock, copy over all we need.
+ QMutexLocker lock(&rendererArgsLock_);
+ selectedDecals = rendererArgs_->selectedDecals;
+ for (int i = 0; i < 8; i++)
+ highlightedDecals[i] = rendererArgs_->highlightedDecals[i];
+ highlightedOrSelectedChanged = rendererArgs_->highlightedOrSelectedChanged;
+ rendererArgs_->highlightedOrSelectedChanged = false;
+ }
QuadTreeBels::BoundingBox globalBB = QuadTreeBels::BoundingBox(-1000, -1000, 1000, 1000);
+ // Render decals if necessary.
if (decalsChanged) {
auto data = std::unique_ptr<FPGAViewWidget::RendererData>(new FPGAViewWidget::RendererData);
// Draw Bels.
data->qtBels = std::unique_ptr<QuadTreeBels>(new QuadTreeBels(globalBB));
for (auto const &decal : belDecals) {
- drawDecal(data->decals, decal.second);
- commitToQuadtree(data->qtBels.get(), decal.second, decal.first);
+ drawArchDecal(data->gfxByStyle, decal);
}
// Draw Wires.
for (auto const &decal : wireDecals) {
- drawDecal(data->decals, decal);
+ drawArchDecal(data->gfxByStyle, decal);
}
// Draw Pips.
for (auto const &decal : pipDecals) {
- drawDecal(data->decals, decal);
+ drawArchDecal(data->gfxByStyle, decal);
}
// Draw Groups.
for (auto const &decal : groupDecals) {
- drawDecal(data->decals, decal);
+ drawArchDecal(data->gfxByStyle, decal);
}
// Swap over.
- rendererDataLock_.lock();
- rendererData_ = std::move(data);
- rendererDataLock_.unlock();
+ {
+ QMutexLocker lock(&rendererDataLock_);
+
+ // If we're not re-rendering any highlights/selections, let's
+ // copy them over from teh current object.
+ if (!highlightedOrSelectedChanged) {
+ data->gfxSelected = rendererData_->gfxSelected;
+ for (int i = 0; i < 8; i++)
+ data->gfxHighlighted[i] = rendererData_->gfxHighlighted[i];
+ }
+
+ rendererData_ = std::move(data);
+ }
}
- rendererDataLock_.lock();
- if (decalsChanged || highlightedOrSelectedChanged) {
- rendererData_->selected.clear();
- for (auto &decal : selectedItems) {
- drawDecal(rendererData_->selected, decal);
+ if (highlightedOrSelectedChanged) {
+ QMutexLocker locker(&rendererDataLock_);
+
+ // Render selected.
+ rendererData_->gfxSelected.clear();
+ for (auto &decal : selectedDecals) {
+ drawDecal(rendererData_->gfxSelected, decal);
}
+
+ // Render highlighted.
for (int i = 0; i < 8; i++) {
- rendererData_->highlighted[i].clear();
- for (auto &decal : highlightedItems[i]) {
- drawDecal(rendererData_->highlighted[i], decal);
+ rendererData_->gfxHighlighted[i].clear();
+ for (auto &decal : highlightedDecals[i]) {
+ drawDecal(rendererData_->gfxHighlighted[i], decal);
}
}
}
- rendererDataLock_.unlock();
}
void FPGAViewWidget::onSelectedArchItem(std::vector<DecalXY> decals)
{
- rendererArgsLock_.lock();
- rendererArgs_->selectedItems = decals;
- rendererArgs_->highlightedOrSelectedChanged = true;
- rendererArgsLock_.unlock();
+ {
+ QMutexLocker locker(&rendererArgsLock_);
+ rendererArgs_->selectedDecals = decals;
+ rendererArgs_->highlightedOrSelectedChanged = true;
+ }
pokeRenderer();
}
void FPGAViewWidget::onHighlightGroupChanged(std::vector<DecalXY> decals, int group)
{
- rendererArgsLock_.lock();
- rendererArgs_->highlightedItems[group] = decals;
- rendererArgs_->highlightedOrSelectedChanged = true;
- rendererArgsLock_.unlock();
+ {
+ QMutexLocker locker(&rendererArgsLock_);
+ rendererArgs_->highlightedDecals[group] = decals;
+ rendererArgs_->highlightedOrSelectedChanged = true;
+ }
pokeRenderer();
}
@@ -557,7 +359,7 @@ void FPGAViewWidget::resizeGL(int width, int height) {}
void FPGAViewWidget::mousePressEvent(QMouseEvent *event)
{
if (event->buttons() & Qt::RightButton || event->buttons() & Qt::MidButton) {
- lastPos_ = event->pos();
+ lastDragPos_ = event->pos();
}
if (event->buttons() & Qt::LeftButton) {
int x = event->x();
@@ -609,9 +411,9 @@ QVector4D FPGAViewWidget::mouseToWorldDimensions(int x, int y)
void FPGAViewWidget::mouseMoveEvent(QMouseEvent *event)
{
if (event->buttons() & Qt::RightButton || event->buttons() & Qt::MidButton) {
- const int dx = event->x() - lastPos_.x();
- const int dy = event->y() - lastPos_.y();
- lastPos_ = event->pos();
+ const int dx = event->x() - lastDragPos_.x();
+ const int dy = event->y() - lastDragPos_.y();
+ lastDragPos_ = event->pos();
auto world = mouseToWorldDimensions(dx, dy);
viewMove_.translate(world.x(), -world.y());
diff --git a/gui/fpgaviewwidget.h b/gui/fpgaviewwidget.h
index c1165ef3..a360eea7 100644
--- a/gui/fpgaviewwidget.h
+++ b/gui/fpgaviewwidget.h
@@ -34,183 +34,10 @@
#include "nextpnr.h"
#include "quadtree.h"
+#include "lineshader.h"
NEXTPNR_NAMESPACE_BEGIN
-// Vertex2DPOD is a structure of X, Y coordinates that can be passed to OpenGL
-// directly.
-NPNR_PACKED_STRUCT(struct Vertex2DPOD {
- GLfloat x;
- GLfloat y;
-
- Vertex2DPOD(GLfloat X, GLfloat Y) : x(X), y(Y) {}
-});
-
-// LineShaderData is a built set of vertices that can be rendered by the
-// LineShader.
-// Each LineShaderData can have its' own color and thickness.
-struct LineShaderData
-{
- std::vector<Vertex2DPOD> vertices;
- std::vector<Vertex2DPOD> normals;
- std::vector<GLfloat> miters;
- std::vector<GLuint> indices;
-
- LineShaderData(void) {}
-
- void clear(void)
- {
- vertices.clear();
- normals.clear();
- miters.clear();
- indices.clear();
- }
-};
-
-// PolyLine is a set of segments defined by points, that can be built to a
-// ShaderLine for GPU rendering.
-class PolyLine
-{
- private:
- std::vector<QVector2D> points_;
- bool closed_;
-
- void buildPoint(LineShaderData *building, const QVector2D *prev, const QVector2D *cur, const QVector2D *next) const;
-
- public:
- // Create an empty PolyLine.
- PolyLine(bool closed = false) : closed_(closed) {}
-
- // Create a non-closed polyline consisting of one segment.
- PolyLine(float x0, float y0, float x1, float y1) : closed_(false)
- {
- point(x0, y0);
- point(x1, y1);
- }
-
- // Add a point to the PolyLine.
- void point(float x, float y) { points_.push_back(QVector2D(x, y)); }
-
- // Built PolyLine to shader data.
- void build(LineShaderData &target) const;
-
- // Set whether line is closed (ie. a loop).
- void setClosed(bool closed) { closed_ = closed; }
-};
-
-// LineShader is an OpenGL shader program that renders LineShaderData on the
-// GPU.
-// The LineShader expects two vertices per line point. It will push those
-// vertices along the given normal * miter. This is used to 'stretch' the line
-// to be as wide as the given thickness. The normal and miter are calculated
-// by the PolyLine build method in order to construct a constant thickness line
-// with miter edge joints.
-//
-// +------+------+
-//
-// |
-// PolyLine.build()
-// |
-// V
-//
-// ^ ^ ^
-// | | | <--- normal vectors (x2, pointing in the same
-// +/+----+/+----+/+ direction)
-//
-// |
-// vertex shader
-// |
-// V
-//
-// +------+------+ ^ by normal * miter * thickness/2
-// | | |
-// +------+------+ V by normal * miter * thickness/2
-//
-// (miter is flipped for every second vertex generated)
-class LineShader
-{
- private:
- QObject *parent_;
- QOpenGLShaderProgram *program_;
-
- // GL attribute locations.
- struct
- {
- // original position of line vertex
- GLuint position;
- // normal by which vertex should be translated
- GLuint normal;
- // scalar defining:
- // - how stretched the normal vector should be to
- // compensate for bends
- // - which way the normal should be applied (+1 for one vertex, -1
- // for the other)
- GLuint miter;
- } attributes_;
-
- // GL buffers
- struct
- {
- QOpenGLBuffer position;
- QOpenGLBuffer normal;
- QOpenGLBuffer miter;
- QOpenGLBuffer index;
- } buffers_;
-
- // GL uniform locations.
- struct
- {
- // combines m/v/p matrix to apply
- GLuint projection;
- // desired thickness of line
- GLuint thickness;
- // color of line
- GLuint color;
- } uniforms_;
-
- QOpenGLVertexArrayObject vao_;
-
- public:
- LineShader(QObject *parent) : parent_(parent), program_(nullptr)
- {
- buffers_.position = QOpenGLBuffer(QOpenGLBuffer::VertexBuffer);
- buffers_.position.setUsagePattern(QOpenGLBuffer::StaticDraw);
-
- buffers_.normal = QOpenGLBuffer(QOpenGLBuffer::VertexBuffer);
- buffers_.normal.setUsagePattern(QOpenGLBuffer::StaticDraw);
-
- buffers_.miter = QOpenGLBuffer(QOpenGLBuffer::VertexBuffer);
- buffers_.miter.setUsagePattern(QOpenGLBuffer::StaticDraw);
-
- buffers_.index = QOpenGLBuffer(QOpenGLBuffer::IndexBuffer);
- buffers_.index.setUsagePattern(QOpenGLBuffer::StaticDraw);
- }
-
- static constexpr const char *vertexShaderSource_ =
- "#version 110\n"
- "attribute highp vec2 position;\n"
- "attribute highp vec2 normal;\n"
- "attribute highp float miter;\n"
- "uniform highp float thickness;\n"
- "uniform highp mat4 projection;\n"
- "void main() {\n"
- " vec2 p = position.xy + vec2(normal * thickness/2.0 / miter);\n"
- " gl_Position = projection * vec4(p, 0.0, 1.0);\n"
- "}\n";
-
- static constexpr const char *fragmentShaderSource_ = "#version 110\n"
- "uniform lowp vec4 color;\n"
- "void main() {\n"
- " gl_FragColor = color;\n"
- "}\n";
-
- // Must be called on initialization.
- bool compile(void);
-
- // Render a LineShaderData with a given M/V/P transformation.
- void draw(const LineShaderData &data, const QColor &color, float thickness, const QMatrix4x4 &projection);
-};
-
class PeriodicRunner : public QThread
{
Q_OBJECT
@@ -268,18 +95,17 @@ class FPGAViewWidget : public QOpenGLWidget, protected QOpenGLFunctions
FPGAViewWidget(QWidget *parent = 0);
~FPGAViewWidget();
- QSize minimumSizeHint() const override;
- QSize sizeHint() const override;
-
protected:
+ // Qt callbacks.
void initializeGL() Q_DECL_OVERRIDE;
void paintGL() Q_DECL_OVERRIDE;
void resizeGL(int width, int height) Q_DECL_OVERRIDE;
void mousePressEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
void mouseMoveEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
void wheelEvent(QWheelEvent *event) Q_DECL_OVERRIDE;
- void drawDecal(LineShaderData &data, const DecalXY &decal);
- void drawDecal(LineShaderData out[], const DecalXY &decal);
+ QSize minimumSizeHint() const override;
+ QSize sizeHint() const override;
+
public Q_SLOTS:
void newContext(Context *ctx);
@@ -295,26 +121,13 @@ class FPGAViewWidget : public QOpenGLWidget, protected QOpenGLFunctions
void clickedBel(BelId bel);
private:
- void renderLines(void);
- void zoom(int level);
-
- QPoint lastPos_;
- LineShader lineShader_;
- QMatrix4x4 viewMove_;
- float zoom_;
- QMatrix4x4 getProjection(void);
- QVector4D mouseToWorldCoordinates(int x, int y);
- QVector4D mouseToWorldDimensions(int x, int y);
-
const float zoomNear_ = 1.0f; // do not zoom closer than this
const float zoomFar_ = 10000.0f; // do not zoom further than this
-
const float zoomLvl1_ = 100.0f;
const float zoomLvl2_ = 50.0f;
Context *ctx_;
QTimer paintTimer_;
-
std::unique_ptr<PeriodicRunner> renderRunner_;
using QuadTreeBels = QuadTree<float, BelId>;
@@ -326,12 +139,17 @@ class FPGAViewWidget : public QOpenGLWidget, protected QOpenGLFunctions
float offsetY = decal.y;
for (auto &el : ctx_->getDecalGraphics(decal.decal)) {
- if (el.type == GraphicElement::G_BOX) {
+ if (el.type == GraphicElement::TYPE_BOX) {
tree->insert(typename T::BoundingBox(offsetX + el.x1, offsetY + el.y1, offsetX + el.x2, offsetY + el.y2), bel);
}
}
}
+ QPoint lastDragPos_;
+ LineShader lineShader_;
+ QMatrix4x4 viewMove_;
+ float zoom_;
+
struct
{
QColor background;
@@ -346,23 +164,31 @@ class FPGAViewWidget : public QOpenGLWidget, protected QOpenGLFunctions
struct RendererData
{
- LineShaderData decals[4];
- LineShaderData selected;
- LineShaderData highlighted[8];
+ LineShaderData gfxByStyle[GraphicElement::STYLE_MAX];
+ LineShaderData gfxSelected;
+ LineShaderData gfxHighlighted[8];
std::unique_ptr<QuadTreeBels> qtBels;
};
+ std::unique_ptr<RendererData> rendererData_;
+ QMutex rendererDataLock_;
struct RendererArgs
{
- std::vector<DecalXY> selectedItems;
- std::vector<DecalXY> highlightedItems[8];
+ std::vector<DecalXY> selectedDecals;
+ std::vector<DecalXY> highlightedDecals[8];
bool highlightedOrSelectedChanged;
};
-
- std::unique_ptr<RendererData> rendererData_;
- QMutex rendererDataLock_;
std::unique_ptr<RendererArgs> rendererArgs_;
QMutex rendererArgsLock_;
+
+ void zoom(int level);
+ void renderLines(void);
+ void drawGraphicElement(LineShaderData &out, const GraphicElement &el, float x, float y);
+ void drawDecal(LineShaderData &out, const DecalXY &decal);
+ void drawArchDecal(LineShaderData out[GraphicElement::STYLE_MAX], const DecalXY &decal);
+ QVector4D mouseToWorldCoordinates(int x, int y);
+ QVector4D mouseToWorldDimensions(int x, int y);
+ QMatrix4x4 getProjection(void);
};
NEXTPNR_NAMESPACE_END
diff --git a/gui/lineshader.cc b/gui/lineshader.cc
new file mode 100644
index 00000000..94a7a010
--- /dev/null
+++ b/gui/lineshader.cc
@@ -0,0 +1,236 @@
+/*
+ * nextpnr -- Next Generation Place and Route
+ *
+ * Copyright (C) 2018 Serge Bazanski <q3k@symbioticeda.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ */
+
+#include "log.h"
+#include "lineshader.h"
+
+NEXTPNR_NAMESPACE_BEGIN
+
+void PolyLine::buildPoint(LineShaderData *building, const QVector2D *prev, const QVector2D *cur,
+ const QVector2D *next) const
+{
+ // buildPoint emits two vertices per line point, along with normals to move
+ // them the right directio when rendering and miter to compensate for
+ // bends.
+
+ if (cur == nullptr) {
+ // BUG
+ return;
+ }
+
+ if (prev == nullptr && next == nullptr) {
+ // BUG
+ return;
+ }
+
+ // TODO(q3k): fast path for vertical/horizontal lines?
+
+ // TODO(q3k): consider moving some of the linear algebra to the GPU,
+ // they're better at this than poor old CPUs.
+
+ // Build two unit vectors pointing in the direction of the two segments
+ // defined by (prev, cur) and (cur, next)
+ QVector2D dprev, dnext;
+ if (prev == nullptr) {
+ dnext = *next - *cur;
+ dprev = dnext;
+ } else if (next == nullptr) {
+ dprev = *cur - *prev;
+ dnext = dprev;
+ } else {
+ dprev = *cur - *prev;
+ dnext = *next - *cur;
+ }
+ dprev.normalize();
+ dnext.normalize();
+
+ // Calculate tangent unit vector.
+ QVector2D tangent(dprev + dnext);
+ tangent.normalize();
+
+ // Calculate normal to tangent - this is the line on which the vectors need
+ // to be pushed to build a thickened line.
+ const QVector2D tangent_normal = QVector2D(-tangent.y(), tangent.x());
+
+ // Calculate normal to one of the lines.
+ const QVector2D dprev_normal = QVector2D(-dprev.y(), dprev.x());
+ // https://people.eecs.berkeley.edu/~sequin/CS184/IMGS/Sweep_PolyLine.jpg
+ // (the ^-1 is performed in the shader)
+ const float miter = QVector2D::dotProduct(tangent_normal, dprev_normal);
+
+ const float x = cur->x();
+ const float y = cur->y();
+ const float mx = tangent_normal.x();
+ const float my = tangent_normal.y();
+
+ // Push back 'left' vertex.
+ building->vertices.push_back(Vertex2DPOD(x, y));
+ building->normals.push_back(Vertex2DPOD(mx, my));
+ building->miters.push_back(miter);
+
+ // Push back 'right' vertex.
+ building->vertices.push_back(Vertex2DPOD(x, y));
+ building->normals.push_back(Vertex2DPOD(mx, my));
+ building->miters.push_back(-miter);
+}
+
+void PolyLine::build(LineShaderData &target) const
+{
+ if (points_.size() < 2) {
+ return;
+ }
+ const QVector2D *first = &points_.front();
+ const QVector2D *last = &points_.back();
+
+ // Index number of vertices, used to build the index buffer.
+ unsigned int startIndex = target.vertices.size();
+ unsigned int index = startIndex;
+
+ // For every point on the line, call buildPoint with (prev, point, next).
+ // If we're building a closed line, prev/next wrap around. Otherwise
+ // they are passed as nullptr and buildPoint interprets that accordinglu.
+ const QVector2D *prev = nullptr;
+
+ // Loop iterator used to ensure next is valid.
+ unsigned int i = 0;
+ for (const QVector2D &point : points_) {
+ const QVector2D *next = nullptr;
+ if (++i < points_.size()) {
+ next = (&point + 1);
+ }
+
+ // If the line is closed, wrap around. Otherwise, pass nullptr.
+ if (prev == nullptr && closed_) {
+ buildPoint(&target, last, &point, next);
+ } else if (next == nullptr && closed_) {
+ buildPoint(&target, prev, &point, first);
+ } else {
+ buildPoint(&target, prev, &point, next);
+ }
+
+ // If we have a prev point relative to cur, build a pair of triangles
+ // to render vertices into lines.
+ if (prev != nullptr) {
+ target.indices.push_back(index);
+ target.indices.push_back(index + 1);
+ target.indices.push_back(index + 2);
+
+ target.indices.push_back(index + 2);
+ target.indices.push_back(index + 1);
+ target.indices.push_back(index + 3);
+
+ index += 2;
+ }
+ prev = &point;
+ }
+
+ // If we're closed, build two more vertices that loop the line around.
+ if (closed_) {
+ target.indices.push_back(index);
+ target.indices.push_back(index + 1);
+ target.indices.push_back(startIndex);
+
+ target.indices.push_back(startIndex);
+ target.indices.push_back(index + 1);
+ target.indices.push_back(startIndex + 1);
+ }
+}
+
+bool LineShader::compile(void)
+{
+ program_ = new QOpenGLShaderProgram(parent_);
+ program_->addShaderFromSourceCode(QOpenGLShader::Vertex, vertexShaderSource_);
+ program_->addShaderFromSourceCode(QOpenGLShader::Fragment, fragmentShaderSource_);
+ if (!program_->link()) {
+ printf("could not link program: %s\n", program_->log().toStdString().c_str());
+ return false;
+ }
+
+ if (!vao_.create())
+ log_abort();
+ vao_.bind();
+
+ if (!buffers_.position.create())
+ log_abort();
+ if (!buffers_.normal.create())
+ log_abort();
+ if (!buffers_.miter.create())
+ log_abort();
+ if (!buffers_.index.create())
+ log_abort();
+
+ attributes_.position = program_->attributeLocation("position");
+ attributes_.normal = program_->attributeLocation("normal");
+ attributes_.miter = program_->attributeLocation("miter");
+ uniforms_.thickness = program_->uniformLocation("thickness");
+ uniforms_.projection = program_->uniformLocation("projection");
+ uniforms_.color = program_->uniformLocation("color");
+
+ vao_.release();
+ return true;
+}
+
+void LineShader::draw(const LineShaderData &line, const QColor &color, float thickness, const QMatrix4x4 &projection)
+{
+ auto gl = QOpenGLContext::currentContext()->functions();
+ if (line.vertices.size() == 0)
+ return;
+ vao_.bind();
+ program_->bind();
+
+ buffers_.position.bind();
+ buffers_.position.allocate(&line.vertices[0], sizeof(Vertex2DPOD) * line.vertices.size());
+
+ buffers_.normal.bind();
+ buffers_.normal.allocate(&line.normals[0], sizeof(Vertex2DPOD) * line.normals.size());
+
+ buffers_.miter.bind();
+ buffers_.miter.allocate(&line.miters[0], sizeof(GLfloat) * line.miters.size());
+
+ buffers_.index.bind();
+ buffers_.index.allocate(&line.indices[0], sizeof(GLuint) * line.indices.size());
+
+ program_->setUniformValue(uniforms_.projection, projection);
+ program_->setUniformValue(uniforms_.thickness, thickness);
+ program_->setUniformValue(uniforms_.color, color.redF(), color.greenF(), color.blueF(), color.alphaF());
+
+ buffers_.position.bind();
+ program_->enableAttributeArray("position");
+ gl->glVertexAttribPointer(attributes_.position, 2, GL_FLOAT, GL_FALSE, 0, (void *)0);
+
+ buffers_.normal.bind();
+ program_->enableAttributeArray("normal");
+ gl->glVertexAttribPointer(attributes_.normal, 2, GL_FLOAT, GL_FALSE, 0, (void *)0);
+
+ buffers_.miter.bind();
+ program_->enableAttributeArray("miter");
+ gl->glVertexAttribPointer(attributes_.miter, 1, GL_FLOAT, GL_FALSE, 0, (void *)0);
+
+ buffers_.index.bind();
+ gl->glDrawElements(GL_TRIANGLES, line.indices.size(), GL_UNSIGNED_INT, (void *)0);
+
+ program_->disableAttributeArray("miter");
+ program_->disableAttributeArray("normal");
+ program_->disableAttributeArray("position");
+
+ program_->release();
+ vao_.release();
+}
+
+NEXTPNR_NAMESPACE_END
diff --git a/gui/lineshader.h b/gui/lineshader.h
new file mode 100644
index 00000000..3f4c4057
--- /dev/null
+++ b/gui/lineshader.h
@@ -0,0 +1,209 @@
+/*
+ * nextpnr -- Next Generation Place and Route
+ *
+ * Copyright (C) 2018 Serge Bazanski <q3k@symbioticeda.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ */
+
+#ifndef LINESHADER_H
+#define LINESHADER_H
+
+#include <QOpenGLBuffer>
+#include <QOpenGLFunctions>
+#include <QOpenGLShaderProgram>
+#include <QOpenGLVertexArrayObject>
+#include <QOpenGLWidget>
+
+#include "nextpnr.h"
+
+NEXTPNR_NAMESPACE_BEGIN
+
+// Vertex2DPOD is a structure of X, Y coordinates that can be passed to OpenGL
+// directly.
+NPNR_PACKED_STRUCT(struct Vertex2DPOD {
+ GLfloat x;
+ GLfloat y;
+
+ Vertex2DPOD(GLfloat X, GLfloat Y) : x(X), y(Y) {}
+});
+
+// LineShaderData is a built set of vertices that can be rendered by the
+// LineShader.
+// Each LineShaderData can have its' own color and thickness.
+struct LineShaderData
+{
+ std::vector<Vertex2DPOD> vertices;
+ std::vector<Vertex2DPOD> normals;
+ std::vector<GLfloat> miters;
+ std::vector<GLuint> indices;
+
+ LineShaderData(void) {}
+
+ void clear(void)
+ {
+ vertices.clear();
+ normals.clear();
+ miters.clear();
+ indices.clear();
+ }
+};
+
+// PolyLine is a set of segments defined by points, that can be built to a
+// ShaderLine for GPU rendering.
+class PolyLine
+{
+ private:
+ std::vector<QVector2D> points_;
+ bool closed_;
+
+ void buildPoint(LineShaderData *building, const QVector2D *prev, const QVector2D *cur, const QVector2D *next) const;
+
+ public:
+ // Create an empty PolyLine.
+ PolyLine(bool closed = false) : closed_(closed) {}
+
+ // Create a non-closed polyline consisting of one segment.
+ PolyLine(float x0, float y0, float x1, float y1) : closed_(false)
+ {
+ point(x0, y0);
+ point(x1, y1);
+ }
+
+ // Add a point to the PolyLine.
+ void point(float x, float y) { points_.push_back(QVector2D(x, y)); }
+
+ // Built PolyLine to shader data.
+ void build(LineShaderData &target) const;
+
+ // Set whether line is closed (ie. a loop).
+ void setClosed(bool closed) { closed_ = closed; }
+};
+
+// LineShader is an OpenGL shader program that renders LineShaderData on the
+// GPU.
+// The LineShader expects two vertices per line point. It will push those
+// vertices along the given normal * miter. This is used to 'stretch' the line
+// to be as wide as the given thickness. The normal and miter are calculated
+// by the PolyLine build method in order to construct a constant thickness line
+// with miter edge joints.
+//
+// +------+------+
+//
+// |
+// PolyLine.build()
+// |
+// V
+//
+// ^ ^ ^
+// | | | <--- normal vectors (x2, pointing in the same
+// +/+----+/+----+/+ direction)
+//
+// |
+// vertex shader
+// |
+// V
+//
+// +------+------+ ^ by normal * miter * thickness/2
+// | | |
+// +------+------+ V by normal * miter * thickness/2
+//
+// (miter is flipped for every second vertex generated)
+class LineShader
+{
+ private:
+ QObject *parent_;
+ QOpenGLShaderProgram *program_;
+
+ // GL attribute locations.
+ struct
+ {
+ // original position of line vertex
+ GLuint position;
+ // normal by which vertex should be translated
+ GLuint normal;
+ // scalar defining:
+ // - how stretched the normal vector should be to
+ // compensate for bends
+ // - which way the normal should be applied (+1 for one vertex, -1
+ // for the other)
+ GLuint miter;
+ } attributes_;
+
+ // GL buffers
+ struct
+ {
+ QOpenGLBuffer position;
+ QOpenGLBuffer normal;
+ QOpenGLBuffer miter;
+ QOpenGLBuffer index;
+ } buffers_;
+
+ // GL uniform locations.
+ struct
+ {
+ // combines m/v/p matrix to apply
+ GLuint projection;
+ // desired thickness of line
+ GLuint thickness;
+ // color of line
+ GLuint color;
+ } uniforms_;
+
+ QOpenGLVertexArrayObject vao_;
+
+ public:
+ LineShader(QObject *parent) : parent_(parent), program_(nullptr)
+ {
+ buffers_.position = QOpenGLBuffer(QOpenGLBuffer::VertexBuffer);
+ buffers_.position.setUsagePattern(QOpenGLBuffer::StaticDraw);
+
+ buffers_.normal = QOpenGLBuffer(QOpenGLBuffer::VertexBuffer);
+ buffers_.normal.setUsagePattern(QOpenGLBuffer::StaticDraw);
+
+ buffers_.miter = QOpenGLBuffer(QOpenGLBuffer::VertexBuffer);
+ buffers_.miter.setUsagePattern(QOpenGLBuffer::StaticDraw);
+
+ buffers_.index = QOpenGLBuffer(QOpenGLBuffer::IndexBuffer);
+ buffers_.index.setUsagePattern(QOpenGLBuffer::StaticDraw);
+ }
+
+ static constexpr const char *vertexShaderSource_ =
+ "#version 110\n"
+ "attribute highp vec2 position;\n"
+ "attribute highp vec2 normal;\n"
+ "attribute highp float miter;\n"
+ "uniform highp float thickness;\n"
+ "uniform highp mat4 projection;\n"
+ "void main() {\n"
+ " vec2 p = position.xy + vec2(normal * thickness/2.0 / miter);\n"
+ " gl_Position = projection * vec4(p, 0.0, 1.0);\n"
+ "}\n";
+
+ static constexpr const char *fragmentShaderSource_ = "#version 110\n"
+ "uniform lowp vec4 color;\n"
+ "void main() {\n"
+ " gl_FragColor = color;\n"
+ "}\n";
+
+ // Must be called on initialization.
+ bool compile(void);
+
+ // Render a LineShaderData with a given M/V/P transformation.
+ void draw(const LineShaderData &data, const QColor &color, float thickness, const QMatrix4x4 &projection);
+};
+
+NEXTPNR_NAMESPACE_END
+
+#endif
diff --git a/ice40/arch.cc b/ice40/arch.cc
index d08463d2..3803f842 100644
--- a/ice40/arch.cc
+++ b/ice40/arch.cc
@@ -654,8 +654,8 @@ std::vector<GraphicElement> Arch::getDecalGraphics(DecalId decal) const
if (type == GroupId::TYPE_FRAME) {
GraphicElement el;
- el.type = GraphicElement::G_LINE;
- el.style = GraphicElement::G_FRAME;
+ el.type = GraphicElement::TYPE_LINE;
+ el.style = GraphicElement::STYLE_FRAME;
el.x1 = x + 0.01, el.x2 = x + 0.02, el.y1 = y + 0.01, el.y2 = y + 0.01;
ret.push_back(el);
@@ -680,8 +680,8 @@ std::vector<GraphicElement> Arch::getDecalGraphics(DecalId decal) const
if (type == GroupId::TYPE_MAIN_SW) {
GraphicElement el;
- el.type = GraphicElement::G_BOX;
- el.style = GraphicElement::G_FRAME;
+ el.type = GraphicElement::TYPE_BOX;
+ el.style = GraphicElement::STYLE_FRAME;
el.x1 = x + main_swbox_x1;
el.x2 = x + main_swbox_x2;
@@ -692,8 +692,8 @@ std::vector<GraphicElement> Arch::getDecalGraphics(DecalId decal) const
if (type == GroupId::TYPE_LOCAL_SW) {
GraphicElement el;
- el.type = GraphicElement::G_BOX;
- el.style = GraphicElement::G_FRAME;
+ el.type = GraphicElement::TYPE_BOX;
+ el.style = GraphicElement::STYLE_FRAME;
el.x1 = x + local_swbox_x1;
el.x2 = x + local_swbox_x2;
@@ -707,7 +707,7 @@ std::vector<GraphicElement> Arch::getDecalGraphics(DecalId decal) const
int n = chip_info->wire_data[decal.index].num_segments;
const WireSegmentPOD *p = chip_info->wire_data[decal.index].segments.get();
- GraphicElement::style_t style = decal.active ? GraphicElement::G_ACTIVE : GraphicElement::G_INACTIVE;
+ GraphicElement::style_t style = decal.active ? GraphicElement::STYLE_ACTIVE : GraphicElement::STYLE_INACTIVE;
for (int i = 0; i < n; i++)
gfxTileWire(ret, p[i].x, p[i].y, GfxTileWireId(p[i].index), style);
@@ -715,7 +715,7 @@ std::vector<GraphicElement> Arch::getDecalGraphics(DecalId decal) const
if (decal.type == DecalId::TYPE_PIP) {
const PipInfoPOD &p = chip_info->pip_data[decal.index];
- GraphicElement::style_t style = decal.active ? GraphicElement::G_ACTIVE : GraphicElement::G_HIDDEN;
+ GraphicElement::style_t style = decal.active ? GraphicElement::STYLE_ACTIVE : GraphicElement::STYLE_HIDDEN;
gfxTilePip(ret, p.x, p.y, GfxTileWireId(p.src_seg), GfxTileWireId(p.dst_seg), style);
}
@@ -727,8 +727,8 @@ std::vector<GraphicElement> Arch::getDecalGraphics(DecalId decal) const
if (bel_type == TYPE_ICESTORM_LC) {
GraphicElement el;
- el.type = GraphicElement::G_BOX;
- el.style = decal.active ? GraphicElement::G_ACTIVE : GraphicElement::G_INACTIVE;
+ el.type = GraphicElement::TYPE_BOX;
+ el.style = decal.active ? GraphicElement::STYLE_ACTIVE : GraphicElement::STYLE_INACTIVE;
el.x1 = chip_info->bel_data[bel.index].x + logic_cell_x1;
el.x2 = chip_info->bel_data[bel.index].x + logic_cell_x2;
el.y1 = chip_info->bel_data[bel.index].y + logic_cell_y1 +
@@ -740,8 +740,8 @@ std::vector<GraphicElement> Arch::getDecalGraphics(DecalId decal) const
if (bel_type == TYPE_SB_IO) {
GraphicElement el;
- el.type = GraphicElement::G_BOX;
- el.style = decal.active ? GraphicElement::G_ACTIVE : GraphicElement::G_INACTIVE;
+ el.type = GraphicElement::TYPE_BOX;
+ el.style = decal.active ? GraphicElement::STYLE_ACTIVE : GraphicElement::STYLE_INACTIVE;
el.x1 = chip_info->bel_data[bel.index].x + logic_cell_x1;
el.x2 = chip_info->bel_data[bel.index].x + logic_cell_x2;
el.y1 = chip_info->bel_data[bel.index].y + logic_cell_y1 +
@@ -754,8 +754,8 @@ std::vector<GraphicElement> Arch::getDecalGraphics(DecalId decal) const
if (bel_type == TYPE_ICESTORM_RAM) {
for (int i = 0; i < 2; i++) {
GraphicElement el;
- el.type = GraphicElement::G_BOX;
- el.style = decal.active ? GraphicElement::G_ACTIVE : GraphicElement::G_INACTIVE;
+ el.type = GraphicElement::TYPE_BOX;
+ el.style = decal.active ? GraphicElement::STYLE_ACTIVE : GraphicElement::STYLE_INACTIVE;
el.x1 = chip_info->bel_data[bel.index].x + logic_cell_x1;
el.x2 = chip_info->bel_data[bel.index].x + logic_cell_x2;
el.y1 = chip_info->bel_data[bel.index].y + logic_cell_y1 + i;
diff --git a/ice40/gfx.cc b/ice40/gfx.cc
index 0a583e8e..0798862a 100644
--- a/ice40/gfx.cc
+++ b/ice40/gfx.cc
@@ -24,7 +24,7 @@ NEXTPNR_NAMESPACE_BEGIN
void gfxTileWire(std::vector<GraphicElement> &g, int x, int y, GfxTileWireId id, GraphicElement::style_t style)
{
GraphicElement el;
- el.type = GraphicElement::G_LINE;
+ el.type = GraphicElement::TYPE_LINE;
el.style = style;
// Horizontal Span-4 Wires
@@ -647,7 +647,7 @@ void pipGfx(std::vector<GraphicElement> &g, int x, int y, float x1, float y1, fl
float ty = 0.5 * (y1 + y2);
GraphicElement el;
- el.type = GraphicElement::G_ARROW;
+ el.type = GraphicElement::TYPE_ARROW;
el.style = style;
if (fabsf(x1 - swx1) < 0.001 && fabsf(x2 - swx1) < 0.001) {
@@ -704,7 +704,7 @@ void gfxTilePip(std::vector<GraphicElement> &g, int x, int y, GfxTileWireId src,
if (src == TILE_WIRE_CARRY_IN && dst == TILE_WIRE_CARRY_IN_MUX) {
GraphicElement el;
- el.type = GraphicElement::G_ARROW;
+ el.type = GraphicElement::TYPE_ARROW;
el.style = style;
el.x1 = x + logic_cell_x1 + 0.005 * 3;
el.x2 = el.x1;
diff --git a/ice40/main.cc b/ice40/main.cc
index 6201831a..32815b26 100644
--- a/ice40/main.cc
+++ b/ice40/main.cc
@@ -52,13 +52,13 @@ void svg_dump_decal(const Context *ctx, const DecalXY &decal)
const std::string style = "stroke=\"black\" stroke-width=\"0.1\" fill=\"none\"";
for (auto &el : ctx->getDecalGraphics(decal.decal)) {
- if (el.type == GraphicElement::G_BOX) {
+ if (el.type == GraphicElement::TYPE_BOX) {
std::cout << "<rect x=\"" << (offset + scale * (decal.x + el.x1)) << "\" y=\""
<< (offset + scale * (decal.y + el.y1)) << "\" height=\"" << (scale * (el.y2 - el.y1))
<< "\" width=\"" << (scale * (el.x2 - el.x1)) << "\" " << style << "/>\n";
}
- if (el.type == GraphicElement::G_LINE) {
+ if (el.type == GraphicElement::TYPE_LINE) {
std::cout << "<line x1=\"" << (offset + scale * (decal.x + el.x1)) << "\" y1=\""
<< (offset + scale * (decal.y + el.y1)) << "\" x2=\"" << (offset + scale * (decal.x + el.x2))
<< "\" y2=\"" << (offset + scale * (decal.y + el.y2)) << "\" " << style << "/>\n";
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-04 05:13:15 +0000