From a9c4868883ae2ac67ac1bd30b94a23c3599644b9 Mon Sep 17 00:00:00 2001
From: Explorer09 <explorer09@gmail.com>
Date: Sat, 3 Feb 2024 14:56:06 +0800
Subject: [PATCH] valueCellIndex() return size_t type

---
 Meter.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/Meter.c b/Meter.c
index dfe06dc8e..99f516f55 100644
--- a/Meter.c
+++ b/Meter.c
@@ -321,7 +321,7 @@ static void GraphMeterMode_reallocateGraphBuffer(Meter* this, const GraphDrawCon
    data->nValues = nValues;
 }
 
-static unsigned int GraphMeterMode_valueCellIndex(unsigned int graphHeight, bool isPercentChart, int deltaExp, unsigned int y, unsigned int* scaleFactor, unsigned int* increment) {
+static size_t GraphMeterMode_valueCellIndex(unsigned int graphHeight, bool isPercentChart, int deltaExp, unsigned int y, unsigned int* scaleFactor, unsigned int* increment) {
    if (scaleFactor)
       *scaleFactor = 1;
 
@@ -334,7 +334,7 @@ static unsigned int GraphMeterMode_valueCellIndex(unsigned int graphHeight, bool
          *increment = 1;
 
       if (y > yTop)
-         return (unsigned int)-1;
+         return (size_t)-1;
 
       return y;
    }
@@ -359,7 +359,7 @@ static unsigned int GraphMeterMode_valueCellIndex(unsigned int graphHeight, bool
       *increment = 2U << deltaExp;
 
    if (y > yTop)
-      return (unsigned int)-1;
+      return (size_t)-1;
 
    // "b" is the "base" offset or the upper bits of offset
    unsigned int b = (y * 2) << deltaExp;
@@ -600,7 +600,7 @@ static void GraphMeterMode_computeColors(Meter* this, const GraphDrawContext* co
    assert((unsigned int)numDots <= graphHeight * 8);
 
    unsigned int increment;
-   unsigned int firstCellIndex = GraphMeterMode_valueCellIndex(graphHeight, isPercentChart, deltaExp, 0, NULL, &increment);
+   size_t firstCellIndex = GraphMeterMode_valueCellIndex(graphHeight, isPercentChart, deltaExp, 0, NULL, &increment);
    assert(firstCellIndex < context->nCellsPerValue);
 
    unsigned int topCell = ((unsigned int)numDots - 1) / 8;
@@ -913,9 +913,9 @@ static void GraphMeterMode_recordNewValue(Meter* this, const GraphDrawContext* c
    }
 
    // Clear cells
-   unsigned int i = ((unsigned int)numDots + 8 - 1) / 8; // Round up
-   i = GraphMeterMode_valueCellIndex(graphHeight, isPercentChart, 0, i, NULL, NULL);
-   if (i != (unsigned int)-1) {
+   unsigned int y = ((unsigned int)numDots + 8 - 1) / 8; // Round up
+   size_t i = GraphMeterMode_valueCellIndex(graphHeight, isPercentChart, 0, y, NULL, NULL);
+   if (i != (size_t)-1) {
       assert(i < nCellsPerValue);
       memset(&valueStart[i], 0, (nCellsPerValue - i) * sizeof(*valueStart));
    }
@@ -1048,8 +1048,8 @@ static int GraphMeterMode_lookupCell(const Meter* this, const GraphDrawContext*
       int deltaExpArg = deltaExp >= UINT16_WIDTH ? UINT16_WIDTH - 1 : deltaExp;
 
       unsigned int scaleFactor;
-      unsigned int i = GraphMeterMode_valueCellIndex(graphHeight, isPercentChart, deltaExpArg, y, &scaleFactor, NULL);
-      if (i == (unsigned int)-1)
+      size_t i = GraphMeterMode_valueCellIndex(graphHeight, isPercentChart, deltaExpArg, y, &scaleFactor, NULL);
+      if (i == (size_t)-1)
          goto cellIsEmpty;
 
       if (deltaExp >= UINT16_WIDTH) {