Better to use ++i than i++ (minor optimization)

[kdenlive] / src / colorcorrection / waveformgenerator.cpp

diff --git a/src/colorcorrection/waveformgenerator.cpp b/src/colorcorrection/waveformgenerator.cpp
index a1d2162f8dcf38fd985fdf6186222a16e660a261..8571023f508f863eb7b905776716ecf52803362a 100644 (file)
--- a/src/colorcorrection/waveformgenerator.cpp
+++ b/src/colorcorrection/waveformgenerator.cpp
@@ -57,7 +57,7 @@ QImage WaveformGenerator::calculateWaveform(const QSize &waveformSize, const QIm
         const uint byteCount = iw*ih;
 
         uint waveValues[waveformSize.width()][waveformSize.height()];
-        for (int i = 0; i < waveformSize.width(); i++) {
+        for (int i = 0; i < waveformSize.width(); ++i) {
             for (int j = 0; j < waveformSize.height(); j++) {
                 waveValues[i][j] = 0;
             }
@@ -110,7 +110,7 @@ QImage WaveformGenerator::calculateWaveform(const QSize &waveformSize, const QIm
 
         switch (paintMode) {
         case PaintMode_Green:
-            for (int i = 0; i < waveformSize.width(); i++) {
+            for (int i = 0; i < waveformSize.width(); ++i) {
                 for (int j = 0; j < waveformSize.height(); j++) {
                     // Logarithmic scale. Needs fine tuning by hand, but looks great.
                     wave.setPixel(i, waveformSize.height()-j-1, qRgba(CHOP255(52*log(0.1*gain*waveValues[i][j])),
@@ -121,14 +121,14 @@ QImage WaveformGenerator::calculateWaveform(const QSize &waveformSize, const QIm
             }
             break;
         case PaintMode_Yellow:
-            for (int i = 0; i < waveformSize.width(); i++) {
+            for (int i = 0; i < waveformSize.width(); ++i) {
                 for (int j = 0; j < waveformSize.height(); j++) {
                     wave.setPixel(i, waveformSize.height()-j-1, qRgba(255,242,0,   CHOP255(gain*waveValues[i][j])));
                 }
             }
             break;
         default:
-            for (int i = 0; i < waveformSize.width(); i++) {
+            for (int i = 0; i < waveformSize.width(); ++i) {
                 for (int j = 0; j < waveformSize.height(); j++) {
                     wave.setPixel(i, waveformSize.height()-j-1, qRgba(255,255,255, CHOP255(2*gain*waveValues[i][j])));
                 }
@@ -141,7 +141,7 @@ QImage WaveformGenerator::calculateWaveform(const QSize &waveformSize, const QIm
             QRgb opx;
             davinci.setPen(qRgba(150,255,200,32));
             davinci.setCompositionMode(QPainter::CompositionMode_Overlay);
-            for (uint i = 0; i <= 10; i++) {
+            for (uint i = 0; i <= 10; ++i) {
                 dy = (float)i/10 * (wh-1);
                 for (uint x = 0; x < ww; x++) {
                     opx = wave.pixel(x, dy);