Fix "-Wshorten-64-to-32" errors in Apple code

Also rename AndroidCallstack -> AppleCallstack in apple_callstack.cpp

renderdoc/driver/metal/metal_common.cpp

@@ -710,8 +710,8 @@ static uint32_t GetPlaneByteSize(uint32_t width, uint32_t height, uint32_t depth
   MTL::Size planeShape(mipWidth, mipHeight, 0);
   BlockShape blockShape(GetBlockShape(mtlFormat, plane));
 
-  uint32_t widthInBlocks = (planeShape.width + blockShape.width - 1) / blockShape.width;
-  uint32_t heightInBlocks = (planeShape.height + blockShape.height - 1) / blockShape.height;
+  uint32_t widthInBlocks = (uint32_t)(planeShape.width + blockShape.width - 1) / blockShape.width;
+  uint32_t heightInBlocks = (uint32_t)(planeShape.height + blockShape.height - 1) / blockShape.height;
 
   return blockShape.bytes * widthInBlocks * heightInBlocks * mipDepth;
 }

renderdoc/driver/metal/metal_types.cpp

@@ -153,9 +153,9 @@ static bool ValidData(MTL::RenderPassSampleBufferAttachmentDescriptor *descripto
 template <typename MTL_TYPE>
 static void GetWrappedNSArray(rdcarray<typename UnwrapHelper<MTL_TYPE>::Outer *> &to, NS::Array *from)
 {
-  int count = from->count();
+  size_t count = from->count();
   to.resize(count);
-  for(int i = 0; i < count; ++i)
+  for(size_t i = 0; i < count; ++i)
   {
     to[i] = GetWrapped((MTL_TYPE)from->object(i));
   }
@@ -328,19 +328,19 @@ LinkedFunctions::LinkedFunctions(MTL::LinkedFunctions *objc)
   {
     NS::Dictionary *objcGroups = objc->groups();
     NS::Array *keys = objcGroups->keyEnumerator()->allObjects();
-    int countKeys = keys->count();
+    size_t countKeys = keys->count();
 
     groups.resize(countKeys);
-    for(int i = 0; i < countKeys; ++i)
+    for(size_t i = 0; i < countKeys; ++i)
     {
       NS::String *key = (NS::String *)keys->object(i);
       NS::Array *funcs = (NS::Array *)objcGroups->object(key);
-      int countFuncs = funcs->count();
+      size_t countFuncs = funcs->count();
 
       FunctionGroup &funcGroup = groups[i];
       funcGroup.callsite.assign(key->utf8String());
       funcGroup.functions.resize(countFuncs);
-      for(int j = 0; j < countFuncs; ++j)
+      for(size_t j = 0; j < countFuncs; ++j)
       {
         funcGroup.functions[j] = GetWrapped((MTL::Function *)funcs->object(j));
       }
@@ -577,7 +577,7 @@ RenderPassDescriptor::RenderPassDescriptor(MTL::RenderPassDescriptor *objc)
 {
   GETOBJCARRAY(RenderPassColorAttachmentDescriptor, MAX_RENDER_PASS_COLOR_ATTACHMENTS,
                colorAttachments, ValidData);
-  uint32_t count = objc->getSamplePositions(NULL, 0);
+  size_t count = objc->getSamplePositions(NULL, 0);
   if(count)
   {
     samplePositions.resize(count);

renderdoc/os/posix/apple/apple_callstack.cpp

@@ -25,30 +25,30 @@
 #include "common/common.h"
 #include "os/os_specific.h"
 
-class AndroidCallstack : public Callstack::Stackwalk
+class AppleCallstack : public Callstack::Stackwalk
 {
 public:
-  AndroidCallstack()
+  AppleCallstack()
   {
     RDCEraseEl(addrs);
     numLevels = 0;
   }
-  AndroidCallstack(uint64_t *calls, size_t num) { Set(calls, num); }
-  ~AndroidCallstack() {}
+  AppleCallstack(uint64_t *calls, size_t num) { Set(calls, num); }
+  ~AppleCallstack() {}
   void Set(uint64_t *calls, size_t num)
   {
     numLevels = num;
-    for(int i = 0; i < numLevels; i++)
+    for(size_t i = 0; i < numLevels; i++)
       addrs[i] = calls[i];
   }
 
   size_t NumLevels() const { return 0; }
   const uint64_t *GetAddrs() const { return addrs; }
 private:
-  AndroidCallstack(const Callstack::Stackwalk &other);
+  AppleCallstack(const Callstack::Stackwalk &other);
 
   uint64_t addrs[128];
-  int numLevels;
+  size_t numLevels;
 };
 
 namespace Callstack
@@ -59,12 +59,12 @@ void Init()
 
 Stackwalk *Collect()
 {
-  return new AndroidCallstack();
+  return new AppleCallstack();
 }
 
 Stackwalk *Create()
 {
-  return new AndroidCallstack(NULL, 0);
+  return new AppleCallstack(NULL, 0);
 }
 
 bool GetLoadedModules(byte *buf, size_t &size)

renderdoc/os/posix/apple/apple_process.cpp

@@ -90,11 +90,11 @@ int GetIdentPort(pid_t childPid)
   // n*:<PORT>
 
   rdcstr parseResult(result);
-  const size_t len = parseResult.length();
+  const int len = parseResult.count();
   if(parseResult[0] == 'p')
   {
-    size_t tokenStart = 1;
-    size_t i = tokenStart;
+    int tokenStart = 1;
+    int i = tokenStart;
     for(; i < len; i++)
     {
       if(parseResult[i] < '0' || parseResult[i] > '9')
@@ -114,7 +114,7 @@ int GetIdentPort(pid_t childPid)
         const int netStart = parseResult.find(netString, i);
         if(netStart >= 0)
         {
-          tokenStart = netStart + strlen(netString);
+          tokenStart = netStart + (int)strlen(netString);
           i = tokenStart;
           for(; i < len; i++)
           {