--User changes

-Add support for multiple GPU devices.
  --These options are present in the command line and in Fractorium.
 -Change scheme of specifying devices from platform,device to just total device index.
  --Single number on the command line.
  --Change from combo boxes for device selection to a table of all devices in Fractorium.
 -Temporal samples defaults to 100 instead of 1000 which was needless overkill.

--Bug fixes
 -EmberAnimate, EmberRender, FractoriumSettings, FinalRenderDialog: Fix wrong order of arguments to Clamp() when assigning thread priority.
 -VariationsDC.h: Fix NVidia OpenCL compilation error in DCTriangleVariation.
 -FractoriumXformsColor.cpp: Checking for null pixmap pointer is not enough, must also check if the underlying buffer is null via call to QPixmap::isNull().

--Code changes
 -Ember.h: Add case for FLAME_MOTION_NONE and default in ApplyFlameMotion().
 -EmberMotion.h: Call base constructor.
 -EmberPch.h: #pragma once only on Windows.
 -EmberToXml.h:
  --Handle different types of exceptions.
  --Add default cases to ToString().
 -Isaac.h: Remove unused variable in constructor.
 -Point.h: Call base constructor in Color().
 -Renderer.h/cpp:
  --Add bool to Alloc() to only allocate memory for the histogram. Needed for multi-GPU.
  --Make CoordMap() return a const ref, not a pointer.
 -SheepTools.h:
  --Use 64-bit types like the rest of the code already does.
  --Fix some comment misspellings.
 -Timing.h: Make BeginTime(), EndTime(), ElapsedTime() and Format() be const functions.
 -Utils.h:
  --Add new functions Equal() and Split().
  --Handle more exception types in ReadFile().
  --Get rid of most legacy blending of C and C++ argument parsing.
 -XmlToEmber.h:
  --Get rid of most legacy blending of C and C++ code from flam3.
  --Remove some unused variables.
 -EmberAnimate:
  --Support multi-GPU processing that alternates full frames between devices.
  --Use OpenCLInfo instead of OpenCLWrapper for --openclinfo option.
  --Remove bucketT template parameter, and hard code float in its place.
  --If a render fails, exit since there is no point in continuing an animation with a missing frame.
  --Pass variables to threaded save better, which most likely fixes a very subtle bug that existed before.
  --Remove some unused variables.
 -EmberGenome, EmberRender:
  --Support multi-GPU processing that alternates full frames between devices.
  --Use OpenCLInfo instead of OpenCLWrapper for --openclinfo option.
  --Remove bucketT template parameter, and hard code float in its place.
 -EmberRender:
  --Support multi-GPU processing that alternates full frames between devices.
  --Use OpenCLInfo instead of OpenCLWrapper for --openclinfo option.
  --Remove bucketT template parameter, and hard code float in its place.
  --Only print values when not rendering with OpenCL, since they're always 0 in that case.
 -EmberCLPch.h:
  --#pragma once only on Windows.
  --#include <atomic>.
 -IterOpenCLKernelCreator.h: Add new kernel for summing two histograms. This is needed for multi-GPU.
 -OpenCLWrapper.h:
  --Move all OpenCL info related code into its own class OpenCLInfo.
  --Add members to cache the values of global memory size and max allocation size.
 -RendererCL.h/cpp:
  --Redesign to accomodate multi-GPU.
  --Constructor now takes a vector of devices.
  --Remove DumpErrorReport() function, it's handled in the base.
  --ClearBuffer(), ReadPoints(), WritePoints(), ReadHist() and WriteHist() now optionally take a device index as a parameter.
  --MakeDmap() override and m_DmapCL member removed because it no longer applies since the histogram is always float since the last commit.
  --Add new function SumDeviceHist() to sum histograms from two devices by first copying to a temporary on the host, then a temporary on the device, then summing.
  --m_Calls member removed, as it's now per-device.
  --OpenCLWrapper removed.
  --m_Seeds member is now a vector of vector of seeds, to accomodate a separate and different array of seeds for each device.
  --Added member m_Devices, a vector of unique_ptr of RendererCLDevice.
 -EmberCommon.h
  --Added Devices() function to convert from a vector of device indices to a vector of platform,device indices.
  --Changed CreateRenderer() to accept a vector of devices to create a single RendererCL which will split work across multiple devices.
  --Added CreateRenderers() function to accept a vector of devices to create multiple RendererCL, each which will render on a single device.
  --Add more comments to some existing functions.
 -EmberCommonPch.h: #pragma once only on Windows.
 -EmberOptions.h:
  --Remove --platform option, it's just sequential device number now with the --device option.
  --Make --out be OPT_USE_RENDER instead of OPT_RENDER_ANIM since it's an error condition when animating. It makes no sense to write all frames to a single image.
  --Add Devices() function to parse comma separated --device option string and return a vector of device indices.
  --Make int and uint types be 64-bit, so intmax_t and size_t.
  --Make better use of macros.
 -JpegUtils.h: Make string parameters to WriteJpeg() and WritePng() be const ref.
 -All project files: Turn off buffer security check option in Visual Studio (/Gs-)
 -deployment.pri: Remove the line OTHER_FILES +=, it's pointless and was causing problems.
 -Ember.pro, EmberCL.pro: Add CONFIG += plugin, otherwise it wouldn't link.
 -EmberCL.pro: Add new files for multi-GPU support.
 -build_all.sh: use -j4 and QMAKE=${QMAKE:/usr/bin/qmake}
 -shared_settings.pri:
  -Add version string.
  -Remove old DESTDIR definitions.
  -Add the following lines or else nothing would build:
   CONFIG(release, debug|release) {
    CONFIG += warn_off
    DESTDIR = ../../../Bin/release
   }

   CONFIG(debug, debug|release) {
    DESTDIR = ../../../Bin/debug
   }

   QMAKE_POST_LINK += $$quote(cp --update ../../../Data/flam3-palettes.xml $${DESTDIR}$$escape_expand(\n\t))
   LIBS += -L/usr/lib -lpthread
 -AboutDialog.ui: Another futile attempt to make it look correct on Linux.
 -FinalRenderDialog.h/cpp:
  --Add support for multi-GPU.
  --Change from combo boxes for device selection to a table of all devices.
  --Ensure device selection makes sense.
  --Remove "FinalRender" prefix of various function names, it's implied given the context.
 -FinalRenderEmberController.h/cpp:
  --Add support for multi-GPU.
  --Change m_FinishedImageCount to be atomic.
  --Move CancelRender() from the base to FinalRenderEmberController<T>.
  --Refactor RenderComplete() to omit any progress related functionality or image saving since it can be potentially ran in a thread.
  --Consolidate setting various renderer fields into SyncGuiToRenderer().
 -Fractorium.cpp: Allow for resizing of the options dialog to show the entire device table.
 -FractoriumCommon.h: Add various functions to handle a table showing the available OpenCL devices on the system.
 -FractoriumEmberController.h/cpp: Remove m_FinalImageIndex, it's no longer needed.
 -FractoriumRender.cpp: Scale the interactive sub batch count and quality by the number of devices used.
 -FractoriumSettings.h/cpp:
  --Temporal samples defaults to 100 instead of 1000 which was needless overkill.
  --Add multi-GPU support, remove old device,platform pair.
 -FractoriumToolbar.cpp: Disable OpenCL toolbar button if there are no devices present on the system.
 -FractoriumOptionsDialog.h/cpp:
  --Add support for multi-GPU.
  --Consolidate more assignments in DataToGui().
  --Enable/disable CPU/OpenCL items in response to OpenCL checkbox event.
 -Misc: Convert almost everything to size_t for unsigned, intmax_t for signed.

Source/Ember/SheepTools.h

@@ -44,7 +44,7 @@ enum eCrossMode
 /// Most functions in this class perform a particular action and return
 /// a string describing what it did so it can be recorded in an Xml edit doc
 /// to be saved with the ember when converting to Xml.
-/// Since it's members can occupy significant memory space and also have
+/// Since its members can occupy significant memory space and also have
 /// hefty initialization sequences, it's important to declare one instance
 /// and reuse it for the duration of the program instead of creating and deleting
 /// them as local variables.
@@ -186,11 +186,10 @@ public:
 	/// <param name="sym">The type of symmetry to add if random specified. If 0, it will be added randomly.</param>
 	/// <param name="speed">The speed to multiply the pre affine transforms by if the mutate mode is MUTATE_ALL_COEFS, else ignored.</param>
 	/// <returns>A string describing what was done</returns>
-	string Mutate(Ember<T>& ember, eMutateMode mode, vector<eVariationId>& useVars, int sym, T speed)
+	string Mutate(Ember<T>& ember, eMutateMode mode, vector<eVariationId>& useVars, intmax_t sym, T speed)
 	{
 		bool done = false;
 		size_t modXform;
-		char ministr[32];
 		T randSelect;
 		ostringstream os;
 		Ember<T> mutation;
@@ -285,14 +284,13 @@ public:
 		else if (mode == MUTATE_POST_XFORMS)
 		{
 			bool same = (m_Rand.Rand() & 3) > 0;//25% chance of using the same post for all of them.
-			uint b = 1 + m_Rand.Rand() % 6;
+			size_t b = 1 + m_Rand.Rand() % 6;
 
-			sprintf_s(ministr, 32, "(%d%s)", b, same ? " same" : "");
-			os << "mutate post xforms " << ministr;
+			os << "mutate post xforms " << b << (same ? " same" : "");
 
 			for (size_t i = 0; i < ember.TotalXformCount(); i++)
 			{
-				int copy = (i > 0) && same;
+				bool copy = (i > 0) && same;
 				Xform<T>* xform = ember.GetTotalXform(i);
 
 				if (copy)//Copy the post from the first xform to the rest of them.
@@ -605,7 +603,7 @@ public:
 	{
 		vector<eVariationId> useVars;
 
-		Random(ember, useVars, static_cast<int>(m_Rand.Frand<T>(-2, 2)), 0);
+        Random(ember, useVars, static_cast<intmax_t>(m_Rand.Frand<T>(-2, 2)), 0);
 	}
 
 	/// <summary>
@@ -615,7 +613,7 @@ public:
 	/// <param name="useVars">A list of variations to use. If empty, any variation can be used.</param>
 	/// <param name="sym">The symmetry type to use from -2 to 2</param>
 	/// <param name="specXforms">The number of xforms to use. If 0, a quasi random count is used.</param>
-	void Random(Ember<T>& ember, vector<eVariationId>& useVars, int sym, size_t specXforms)
+	void Random(Ember<T>& ember, vector<eVariationId>& useVars, intmax_t sym, size_t specXforms)
 	{
 		bool postid, addfinal = false;
 		int var, samed, multid, samepost;
@@ -806,9 +804,9 @@ public:
 	/// <param name="tries">The number of test renders to try before giving up</param>
 	/// <param name="changePalette">Change palette if true, else keep trying with the same palette.</param>
 	/// <param name="colorResolution">The resolution of the test histogram. This value ^ 3 will be used for the total size. Common value is 10.</param>
-	void ImproveColors(Ember<T>& ember, int tries, bool changePalette, int colorResolution)
+	void ImproveColors(Ember<T>& ember, size_t tries, bool changePalette, size_t colorResolution)
 	{
-		int i;
+		size_t i;
 		T best, b;
 		Ember<T> bestEmber = ember;
 
@@ -847,7 +845,7 @@ public:
 	/// <param name="ember">The ember to render</param>
 	/// <param name="colorResolution">The resolution of the test histogram. This value ^ 3 will be used for the total size. Common value is 10.</param>
 	/// <returns>The number of histogram cells that weren't black</returns>
-	T TryColors(Ember<T>& ember, int colorResolution)
+	T TryColors(Ember<T>& ember, size_t colorResolution)
 	{
 		byte* p;
 		size_t i, hits = 0, res = colorResolution;
@@ -903,7 +901,7 @@ public:
 	}
 
 	/// <summary>
-	/// Change around color coordinates. Optionall change out the entire palette.
+	/// Change around color coordinates. Optionally change out the entire palette.
 	/// </summary>
 	/// <param name="ember">The ember whose xform's color coordinates will be changed</param>
 	/// <param name="changePalette">Change palette if true, else don't</param>
@@ -1071,7 +1069,7 @@ public:
 	/// <param name="result">The result of the spin</param>
 	/// <param name="frame">The frame in the sequence to be stored in the m_Time member of result</param>
 	/// <param name="blend">The interpolation time</param>
-	void Spin(Ember<T>& parent, Ember<T>* templ, Ember<T>& result, int frame, T blend)
+	void Spin(Ember<T>& parent, Ember<T>* templ, Ember<T>& result, size_t frame, T blend)
 	{
 		char temp[50];
 
@@ -1112,7 +1110,7 @@ public:
 	/// <param name="frame">The frame in the sequence to be stored in the m_Time member of result</param>
 	/// <param name="seqFlag">True if embers points to the first or last ember in the entire sequence, else false.</param>
 	/// <param name="blend">The interpolation time</param>
-	void SpinInter(Ember<T>* parents, Ember<T>* templ, Ember<T>& result, int frame, bool seqFlag, T blend)
+	void SpinInter(Ember<T>* parents, Ember<T>* templ, Ember<T>& result, size_t frame, bool seqFlag, T blend)
 	{
 		char temp[50];
 
@@ -1286,8 +1284,8 @@ public:
 		m_Samples.resize(samples);
 		params.m_Count = samples;
 		params.m_Skip = 20;
-		//params.m_OneColDiv2 = m_Renderer->CoordMap()->OneCol() / 2;
-		//params.m_OneRowDiv2 = m_Renderer->CoordMap()->OneRow() / 2;
+		//params.m_OneColDiv2 = m_Renderer->CoordMap().OneCol() / 2;
+		//params.m_OneRowDiv2 = m_Renderer->CoordMap().OneRow() / 2;
 
 		size_t bv = m_Iterator->Iterate(ember, params, m_Samples.data(), m_Rand);//Use a special fuse of 20, all other calls to this will use 15, or 100.
 
@@ -1349,7 +1347,7 @@ public:
 	/// <param name="comment">The comment to include</param>
 	/// <param name="sheepGen">The sheep generation used if > 0. Default: 0.</param>
 	/// <param name="sheepId">The sheep id used if > 0. Default: 0.</param>
-	void SetSpinParams(bool smooth, T stagger, T offsetX, T offsetY, string nick, string url, string id, string comment, int sheepGen, int sheepId)
+	void SetSpinParams(bool smooth, T stagger, T offsetX, T offsetY, const string& nick, const string& url, const string& id, const string& comment, intmax_t sheepGen, intmax_t sheepId)
 	{
 		m_Smooth = smooth;
 		m_SheepGen = sheepGen;
@@ -1365,8 +1363,8 @@ public:
 
 private:
 	bool m_Smooth;
-	int m_SheepGen;
-	int m_SheepId;
+	intmax_t m_SheepGen;
+	intmax_t m_SheepId;
 	T m_Stagger;
 	T m_OffsetX;
 	T m_OffsetY;