]> sigrok.org Git - pulseview.git/blobdiff - logicsignal.cpp
Add COPYING file (PulseView is GPL, version 2 or later).
[pulseview.git] / logicsignal.cpp
index 67d72bef8b7c741190cad954f84fddd9f42103ed..77ecb2e36416812bb958de8648718337d7f39f82 100644 (file)
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  */
 
-#define GL_GLEXT_PROTOTYPES
-#include <GL/gl.h>
-#include <GL/glext.h>
-
 #include <math.h>
 
+#include "extdef.h"
+
 #include "logicdata.h"
 #include "logicdatasnapshot.h"
 #include "logicsignal.h"
 using namespace boost;
 using namespace std;
 
-const float Log2 = logf(2.0f);
-
 const float LogicSignal::Margin = 10.0f;
-
-const float LogicSignal::EdgeColour[3] =       {0.50f, 0.50f, 0.50f};
-const float LogicSignal::HighColour[3] =       {0.00f, 0.75f, 0.00f};
-const float LogicSignal::LowColour[3] =        {0.75f, 0.00f, 0.00f};
+const float LogicSignal::Oversampling = 2.0f;
+
+const QColor LogicSignal::EdgeColour(0x80, 0x80, 0x80);
+const QColor LogicSignal::HighColour(0x00, 0xC0, 0x00);
+const QColor LogicSignal::LowColour(0xC0, 0x00, 0x00);
+
+const QColor LogicSignal::LogicSignalColours[10] = {
+       QColor(0x16, 0x19, 0x1A),       // Black
+       QColor(0x8F, 0x52, 0x02),       // Brown
+       QColor(0xCC, 0x00, 0x00),       // Red
+       QColor(0xF5, 0x79, 0x00),       // Orange
+       QColor(0xED, 0xD4, 0x00),       // Yellow
+       QColor(0x73, 0xD2, 0x16),       // Green
+       QColor(0x34, 0x65, 0xA4),       // Blue
+       QColor(0x75, 0x50, 0x7B),       // Violet
+       QColor(0x88, 0x8A, 0x85),       // Grey
+       QColor(0xEE, 0xEE, 0xEC),       // White
+};
 
 LogicSignal::LogicSignal(QString name, shared_ptr<LogicData> data,
        int probe_index) :
@@ -48,10 +58,10 @@ LogicSignal::LogicSignal(QString name, shared_ptr<LogicData> data,
        assert(_probe_index >= 0);
 }
 
-void LogicSignal::paint(QGLWidget &widget, const QRect &rect,
-       double scale, double offset)
+void LogicSignal::paint(QPainter &p, const QRect &rect, double scale,
+       double offset)
 {
-       Point2F *vertex;
+       QLineF *line;
 
        vector< pair<int64_t, bool> > edges;
 
@@ -61,7 +71,7 @@ void LogicSignal::paint(QGLWidget &widget, const QRect &rect,
        const float high_offset = rect.top() + Margin;
        const float low_offset = rect.bottom() - Margin;
 
-       const queue< shared_ptr<LogicDataSnapshot> > &snapshots =
+       const deque< shared_ptr<LogicDataSnapshot> > &snapshots =
                _data->get_snapshots();
        if(snapshots.empty())
                return;
@@ -71,98 +81,74 @@ void LogicSignal::paint(QGLWidget &widget, const QRect &rect,
        const double pixels_offset = offset / scale;
        const double samplerate = _data->get_samplerate();
        const double start_time = _data->get_start_time();
-       const int64_t last_sample = (int64_t)snapshot->get_sample_count() - 1;
+       const int64_t last_sample = snapshot->get_sample_count() - 1;
        const double samples_per_pixel = samplerate * scale;
-       const int64_t start = min(max((int64_t)(samplerate * (offset - start_time)),
-               (int64_t)0), last_sample);
-       const int64_t end = min((int64_t)(start + samples_per_pixel * rect.width()),
-               last_sample);
-       const int64_t quantization_length = 1LL << (int64_t)floorf(
-               max(logf(samples_per_pixel / Log2), 0.0f));
+       const double start = samplerate * (offset - start_time);
+       const double end = start + samples_per_pixel * rect.width();
 
-       snapshot->get_subsampled_edges(edges, start, end,
-               quantization_length, _probe_index);
+       snapshot->get_subsampled_edges(edges,
+               min(max((int64_t)floor(start), (int64_t)0), last_sample),
+               min(max((int64_t)ceil(end), (int64_t)0), last_sample),
+               samples_per_pixel / Oversampling, _probe_index);
+       assert(edges.size() >= 2);
 
        // Paint the edges
-       const unsigned int edge_point_count = (edges.size() - 2) * 2;
-       Point2F *const edge_points = new Point2F[edge_point_count];
-       vertex = edge_points;
-
-       for(vector<LogicDataSnapshot::EdgePair>::const_iterator i = edges.begin() + 1;
-           i != edges.end() - 1; i++)
-       {
-               const int x = (int)((*i).first / samples_per_pixel - pixels_offset) +
-                       rect.left();
-
-               vertex->x = x, vertex->y = high_offset;
-               vertex++;
-               vertex->x = x, vertex->y = low_offset;
-               vertex++;
+       const unsigned int edge_count = edges.size() - 2;
+       QLineF *const edge_lines = new QLineF[edge_count];
+       line = edge_lines;
+
+       for(vector<LogicDataSnapshot::EdgePair>::const_iterator i =
+                       edges.begin() + 1;
+               i != edges.end() - 1; i++) {
+               const int x = (int)((*i).first / samples_per_pixel -
+                       pixels_offset) + rect.left();
+               *line++ = QLineF(x, high_offset, x, low_offset);
        }
 
-       glColor3fv(EdgeColour);
-       paint_lines(edge_points, edge_point_count);
-       delete[] edge_points;
+       p.setPen(EdgeColour);
+       p.drawLines(edge_lines, edge_count);
+       delete[] edge_lines;
 
        // Paint the caps
-       const unsigned int max_cap_point_count = (edges.size() - 1) * 2;
-       Point2F *const cap_points = new Point2F[max_cap_point_count];
+       const unsigned int max_cap_line_count = (edges.size() - 1);
+       QLineF *const cap_lines = new QLineF[max_cap_line_count];
 
-       glColor3fv(HighColour);
-       paint_caps(cap_points, edges, true, samples_per_pixel,
+       p.setPen(HighColour);
+       paint_caps(p, cap_lines, edges, true, samples_per_pixel,
                pixels_offset, rect.left(), high_offset);
-       glColor3fv(LowColour);
-       paint_caps(cap_points, edges, false, samples_per_pixel,
+       p.setPen(LowColour);
+       paint_caps(p, cap_lines, edges, false, samples_per_pixel,
                pixels_offset, rect.left(), low_offset);
 
-       delete[] cap_points;
+       delete[] cap_lines;
 }
 
-int LogicSignal::paint_caps(Point2F *const cap_points,
+int LogicSignal::paint_caps(QPainter &p, QLineF *const lines,
        vector< pair<int64_t, bool> > &edges, bool level,
        double samples_per_pixel, double pixels_offset, int x_offset,
        int y_offset)
 {
-       Point2F *vertex = cap_points;
+       QLineF *line = lines;
 
        for(vector<LogicDataSnapshot::EdgePair>::const_iterator i = edges.begin();
            i != (edges.end() - 1); i++)
-               if((*i).second == level)
-               {
-                       vertex->x = (int)((*i).first / samples_per_pixel -
-                               pixels_offset) + x_offset - 1;
-                       vertex->y = y_offset;
-                       vertex++;
-
-                       vertex->x = (int)((*(i+1)).first / samples_per_pixel -
-                               pixels_offset) + x_offset;
-                       vertex->y = y_offset;
-                       vertex++;
+               if((*i).second == level) {
+                       *line++ = QLineF(
+                               (int)((*i).first / samples_per_pixel -
+                                       pixels_offset) + x_offset, y_offset,
+                               (int)((*(i+1)).first / samples_per_pixel -
+                                       pixels_offset) + x_offset, y_offset);
                }
 
-       paint_lines(cap_points, vertex - cap_points);
+       p.drawLines(lines, line - lines);
 }
 
-void LogicSignal::paint_lines(Point2F *points, int count)
+QColor LogicSignal::get_colour() const
 {
-       GLuint vbo_id;
-
-       assert(points);
-
-       glGenBuffers(1, &vbo_id);
-       glBindBuffer(GL_ARRAY_BUFFER, vbo_id);
-
-       const unsigned int vbo_length = count * sizeof(Point2F);
-       glBufferData(GL_ARRAY_BUFFER, vbo_length, NULL, GL_STATIC_DRAW);
-       glBufferSubData(GL_ARRAY_BUFFER, 0, vbo_length, points);
-
-       glBindBuffer(GL_ARRAY_BUFFER, vbo_id);
-
-       glVertexPointer(2, GL_FLOAT, sizeof(Point2F), 0);
-
-       glEnableClientState(GL_VERTEX_ARRAY);
-       glDrawArrays(GL_LINES,  0,  count);
-       glDisableClientState(GL_VERTEX_ARRAY);
+       return LogicSignalColours[_probe_index % countof(LogicSignalColours)];
+}
 
-       glDeleteBuffers(1, &vbo_id);
+int LogicSignal::get_nominal_offset(const QRect &rect) const
+{
+       return rect.bottom() - Margin;
 }