VmaDumpVis: Gracefully handle cases where there is nothing to put on the image, e.g. the stats string was generated without detailed map enabled
Message is printed in that case and 1 is returned instead of division by zero error.
Closes #125
diff --git a/tools/VmaDumpVis/VmaDumpVis.py b/tools/VmaDumpVis/VmaDumpVis.py
index f5a38b1..519ee30 100644
--- a/tools/VmaDumpVis/VmaDumpVis.py
+++ b/tools/VmaDumpVis/VmaDumpVis.py
@@ -66,6 +66,20 @@
return newMemTypeData
+def IsDataEmpty():
+ global data
+ for dictMemType in data.values():
+ if 'DedicatedAllocations' in dictMemType and len(dictMemType['DedicatedAllocations']) > 0:
+ return False
+ if 'DefaultPoolBlocks' in dictMemType and len(dictMemType['DefaultPoolBlocks']) > 0:
+ return False
+ if 'CustomPools' in dictMemType:
+ for lBlockList in dictMemType['CustomPools'].values():
+ if len(lBlockList) > 0:
+ return False
+ return True
+
+
# Returns tuple:
# [0] image height : integer
# [1] pixels per byte : float
@@ -204,6 +218,10 @@
for sBlockId, objBlock in objBlocks.items():
ProcessBlock(dstBlockArray, int(sBlockId), objBlock, sAlgorithm)
+if IsDataEmpty():
+ print("There is nothing to put on the image. Please make sure you generated the stats string with detailed map enabled.")
+ exit(1)
+
iImgSizeY, fPixelsPerByte = CalcParams()
img = Image.new('RGB', (IMG_SIZE_X, iImgSizeY), 'white')
