// dear imgui, v1.73
// (drawing and font code)

/*

Index of this file:

// [SECTION] STB libraries implementation
// [SECTION] Style functions
// [SECTION] ImDrawList
// [SECTION] ImDrawListSplitter
// [SECTION] ImDrawData
// [SECTION] Helpers ShadeVertsXXX functions
// [SECTION] ImFontConfig
// [SECTION] ImFontAtlas
// [SECTION] ImFontAtlas glyph ranges helpers
// [SECTION] ImFontGlyphRangesBuilder
// [SECTION] ImFont
// [SECTION] Internal Render Helpers
// [SECTION] Decompression code
// [SECTION] Default font data (ProggyClean.ttf)

*/

#if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS)
	#define _CRT_SECURE_NO_WARNINGS
#endif

#include "imgui.h"
#ifndef IMGUI_DEFINE_MATH_OPERATORS
	#define IMGUI_DEFINE_MATH_OPERATORS
#endif
#include "imgui_internal.h"

#include <stdio.h>      // vsnprintf, sscanf, printf
#if !defined(alloca)
	#if defined(__GLIBC__) || defined(__sun) || defined(__CYGWIN__) || defined(__APPLE__) || defined(__SWITCH__)
		#include <alloca.h>     // alloca (glibc uses <alloca.h>. Note that Cygwin may have _WIN32 defined, so the order matters here)
	#elif defined(_WIN32)
		#include <malloc.h>     // alloca
		#if !defined(alloca)
			#define alloca _alloca  // for clang with MS Codegen
		#endif
	#else
		#include <stdlib.h>     // alloca
	#endif
#endif

// Visual Studio warnings
#ifdef _MSC_VER
	#pragma warning (disable: 4127) // condition expression is constant
	#pragma warning (disable: 4505) // unreferenced local function has been removed (stb stuff)
	#pragma warning (disable: 4996) // 'This function or variable may be unsafe': strcpy, strdup, sprintf, vsnprintf, sscanf, fopen
#endif

// Clang/GCC warnings with -Weverything
#if defined(__clang__)
	#pragma clang diagnostic ignored "-Wold-style-cast"         // warning : use of old-style cast                              // yes, they are more terse.
	#pragma clang diagnostic ignored "-Wfloat-equal"            // warning : comparing floating point with == or != is unsafe   // storing and comparing against same constants ok.
	#pragma clang diagnostic ignored "-Wglobal-constructors"    // warning : declaration requires a global destructor           // similar to above, not sure what the exact difference is.
	#pragma clang diagnostic ignored "-Wsign-conversion"        // warning : implicit conversion changes signedness             //
	#if __has_warning("-Wzero-as-null-pointer-constant")
		#pragma clang diagnostic ignored "-Wzero-as-null-pointer-constant"  // warning : zero as null pointer constant              // some standard header variations use #define NULL 0
	#endif
	#if __has_warning("-Wcomma")
		#pragma clang diagnostic ignored "-Wcomma"                  // warning : possible misuse of comma operator here             //
	#endif
	#if __has_warning("-Wreserved-id-macro")
		#pragma clang diagnostic ignored "-Wreserved-id-macro"      // warning : macro name is a reserved identifier                //
	#endif
	#if __has_warning("-Wdouble-promotion")
		#pragma clang diagnostic ignored "-Wdouble-promotion"       // warning: implicit conversion from 'float' to 'double' when passing argument to function  // using printf() is a misery with this as C++ va_arg ellipsis changes float to double.
	#endif
#elif defined(__GNUC__)
	#pragma GCC diagnostic ignored "-Wpragmas"                  // warning: unknown option after '#pragma GCC diagnostic' kind
	#pragma GCC diagnostic ignored "-Wunused-function"          // warning: 'xxxx' defined but not used
	#pragma GCC diagnostic ignored "-Wdouble-promotion"         // warning: implicit conversion from 'float' to 'double' when passing argument to function
	#pragma GCC diagnostic ignored "-Wconversion"               // warning: conversion to 'xxxx' from 'xxxx' may alter its value
	#pragma GCC diagnostic ignored "-Wstack-protector"          // warning: stack protector not protecting local variables: variable length buffer
	#pragma GCC diagnostic ignored "-Wclass-memaccess"          // [__GNUC__ >= 8] warning: 'memset/memcpy' clearing/writing an object of type 'xxxx' with no trivial copy-assignment; use assignment or value-initialization instead
#endif

//-------------------------------------------------------------------------
// [SECTION] STB libraries implementation
//-------------------------------------------------------------------------

// Compile time options:
//#define IMGUI_STB_NAMESPACE           ImStb
//#define IMGUI_STB_TRUETYPE_FILENAME   "my_folder/stb_truetype.h"
//#define IMGUI_STB_RECT_PACK_FILENAME  "my_folder/stb_rect_pack.h"
//#define IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION
//#define IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION

#ifdef IMGUI_STB_NAMESPACE
namespace IMGUI_STB_NAMESPACE
{
#endif

#ifdef _MSC_VER
	#pragma warning (push)
	#pragma warning (disable: 4456)                             // declaration of 'xx' hides previous local declaration
#endif

#if defined(__clang__)
	#pragma clang diagnostic push
	#pragma clang diagnostic ignored "-Wunused-function"
	#pragma clang diagnostic ignored "-Wmissing-prototypes"
	#pragma clang diagnostic ignored "-Wimplicit-fallthrough"
	#pragma clang diagnostic ignored "-Wcast-qual"              // warning : cast from 'const xxxx *' to 'xxx *' drops const qualifier //
#endif

#if defined(__GNUC__)
	#pragma GCC diagnostic push
	#pragma GCC diagnostic ignored "-Wtype-limits"              // warning: comparison is always true due to limited range of data type [-Wtype-limits]
	#pragma GCC diagnostic ignored "-Wcast-qual"                // warning: cast from type 'const xxxx *' to type 'xxxx *' casts away qualifiers
#endif

#ifndef STB_RECT_PACK_IMPLEMENTATION                        // in case the user already have an implementation in the _same_ compilation unit (e.g. unity builds)
	#ifndef IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION
		#define STBRP_STATIC
		#define STBRP_ASSERT(x)     IM_ASSERT(x)
		#define STBRP_SORT          ImQsort
		#define STB_RECT_PACK_IMPLEMENTATION
	#endif
	#ifdef IMGUI_STB_RECT_PACK_FILENAME
		#include IMGUI_STB_RECT_PACK_FILENAME
	#else
		#include "imstb_rectpack.h"
	#endif
#endif

#ifndef STB_TRUETYPE_IMPLEMENTATION                         // in case the user already have an implementation in the _same_ compilation unit (e.g. unity builds)
	#ifndef IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION
		#define STBTT_malloc(x,u)   ((void)(u), IM_ALLOC(x))
		#define STBTT_free(x,u)     ((void)(u), IM_FREE(x))
		#define STBTT_assert(x)     IM_ASSERT(x)
		#define STBTT_fmod(x,y)     ImFmod(x,y)
		#define STBTT_sqrt(x)       ImSqrt(x)
		#define STBTT_pow(x,y)      ImPow(x,y)
		#define STBTT_fabs(x)       ImFabs(x)
		#define STBTT_ifloor(x)     ((int)ImFloorStd(x))
		#define STBTT_iceil(x)      ((int)ImCeil(x))
		#define STBTT_STATIC
		#define STB_TRUETYPE_IMPLEMENTATION
	#else
		#define STBTT_DEF extern
	#endif
	#ifdef IMGUI_STB_TRUETYPE_FILENAME
		#include IMGUI_STB_TRUETYPE_FILENAME
	#else
		#include "imstb_truetype.h"
	#endif
#endif

#if defined(__GNUC__)
	#pragma GCC diagnostic pop
#endif

#if defined(__clang__)
	#pragma clang diagnostic pop
#endif

#if defined(_MSC_VER)
	#pragma warning (pop)
#endif

#ifdef IMGUI_STB_NAMESPACE
} // namespace ImStb
using namespace IMGUI_STB_NAMESPACE;
#endif

//-----------------------------------------------------------------------------
// [SECTION] Style functions
//-----------------------------------------------------------------------------

void ImGui::StyleColorsDark( ImGuiStyle* dst )
{
	ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
	ImVec4* colors = style->Colors;

	colors[ImGuiCol_Text]                   = ImVec4( 1.00f, 1.00f, 1.00f, 1.00f );
	colors[ImGuiCol_TextDisabled]           = ImVec4( 0.50f, 0.50f, 0.50f, 1.00f );
	colors[ImGuiCol_WindowBg]               = ImVec4( 0.06f, 0.06f, 0.06f, 0.94f );
	colors[ImGuiCol_ChildBg]                = ImVec4( 0.00f, 0.00f, 0.00f, 0.00f );
	colors[ImGuiCol_PopupBg]                = ImVec4( 0.08f, 0.08f, 0.08f, 0.94f );
	colors[ImGuiCol_Border]                 = ImVec4( 0.43f, 0.43f, 0.50f, 0.50f );
	colors[ImGuiCol_BorderShadow]           = ImVec4( 0.00f, 0.00f, 0.00f, 0.00f );
	colors[ImGuiCol_FrameBg]                = ImVec4( 0.16f, 0.29f, 0.48f, 0.54f );
	colors[ImGuiCol_FrameBgHovered]         = ImVec4( 0.26f, 0.59f, 0.98f, 0.40f );
	colors[ImGuiCol_FrameBgActive]          = ImVec4( 0.26f, 0.59f, 0.98f, 0.67f );
	colors[ImGuiCol_TitleBg]                = ImVec4( 0.04f, 0.04f, 0.04f, 1.00f );
	colors[ImGuiCol_TitleBgActive]          = ImVec4( 0.16f, 0.29f, 0.48f, 1.00f );
	colors[ImGuiCol_TitleBgCollapsed]       = ImVec4( 0.00f, 0.00f, 0.00f, 0.51f );
	colors[ImGuiCol_MenuBarBg]              = ImVec4( 0.14f, 0.14f, 0.14f, 1.00f );
	colors[ImGuiCol_ScrollbarBg]            = ImVec4( 0.02f, 0.02f, 0.02f, 0.53f );
	colors[ImGuiCol_ScrollbarGrab]          = ImVec4( 0.31f, 0.31f, 0.31f, 1.00f );
	colors[ImGuiCol_ScrollbarGrabHovered]   = ImVec4( 0.41f, 0.41f, 0.41f, 1.00f );
	colors[ImGuiCol_ScrollbarGrabActive]    = ImVec4( 0.51f, 0.51f, 0.51f, 1.00f );
	colors[ImGuiCol_CheckMark]              = ImVec4( 0.26f, 0.59f, 0.98f, 1.00f );
	colors[ImGuiCol_SliderGrab]             = ImVec4( 0.24f, 0.52f, 0.88f, 1.00f );
	colors[ImGuiCol_SliderGrabActive]       = ImVec4( 0.26f, 0.59f, 0.98f, 1.00f );
	colors[ImGuiCol_Button]                 = ImVec4( 0.26f, 0.59f, 0.98f, 0.40f );
	colors[ImGuiCol_ButtonHovered]          = ImVec4( 0.26f, 0.59f, 0.98f, 1.00f );
	colors[ImGuiCol_ButtonActive]           = ImVec4( 0.06f, 0.53f, 0.98f, 1.00f );
	colors[ImGuiCol_Header]                 = ImVec4( 0.26f, 0.59f, 0.98f, 0.31f );
	colors[ImGuiCol_HeaderHovered]          = ImVec4( 0.26f, 0.59f, 0.98f, 0.80f );
	colors[ImGuiCol_HeaderActive]           = ImVec4( 0.26f, 0.59f, 0.98f, 1.00f );
	colors[ImGuiCol_Separator]              = colors[ImGuiCol_Border];
	colors[ImGuiCol_SeparatorHovered]       = ImVec4( 0.10f, 0.40f, 0.75f, 0.78f );
	colors[ImGuiCol_SeparatorActive]        = ImVec4( 0.10f, 0.40f, 0.75f, 1.00f );
	colors[ImGuiCol_ResizeGrip]             = ImVec4( 0.26f, 0.59f, 0.98f, 0.25f );
	colors[ImGuiCol_ResizeGripHovered]      = ImVec4( 0.26f, 0.59f, 0.98f, 0.67f );
	colors[ImGuiCol_ResizeGripActive]       = ImVec4( 0.26f, 0.59f, 0.98f, 0.95f );
	colors[ImGuiCol_Tab]                    = ImLerp( colors[ImGuiCol_Header],       colors[ImGuiCol_TitleBgActive], 0.80f );
	colors[ImGuiCol_TabHovered]             = colors[ImGuiCol_HeaderHovered];
	colors[ImGuiCol_TabActive]              = ImLerp( colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f );
	colors[ImGuiCol_TabUnfocused]           = ImLerp( colors[ImGuiCol_Tab],          colors[ImGuiCol_TitleBg], 0.80f );
	colors[ImGuiCol_TabUnfocusedActive]     = ImLerp( colors[ImGuiCol_TabActive],    colors[ImGuiCol_TitleBg], 0.40f );
	colors[ImGuiCol_PlotLines]              = ImVec4( 0.61f, 0.61f, 0.61f, 1.00f );
	colors[ImGuiCol_PlotLinesHovered]       = ImVec4( 1.00f, 0.43f, 0.35f, 1.00f );
	colors[ImGuiCol_PlotHistogram]          = ImVec4( 0.90f, 0.70f, 0.00f, 1.00f );
	colors[ImGuiCol_PlotHistogramHovered]   = ImVec4( 1.00f, 0.60f, 0.00f, 1.00f );
	colors[ImGuiCol_TextSelectedBg]         = ImVec4( 0.26f, 0.59f, 0.98f, 0.35f );
	colors[ImGuiCol_DragDropTarget]         = ImVec4( 1.00f, 1.00f, 0.00f, 0.90f );
	colors[ImGuiCol_NavHighlight]           = ImVec4( 0.26f, 0.59f, 0.98f, 1.00f );
	colors[ImGuiCol_NavWindowingHighlight]  = ImVec4( 1.00f, 1.00f, 1.00f, 0.70f );
	colors[ImGuiCol_NavWindowingDimBg]      = ImVec4( 0.80f, 0.80f, 0.80f, 0.20f );
	colors[ImGuiCol_ModalWindowDimBg]       = ImVec4( 0.80f, 0.80f, 0.80f, 0.35f );
}

void ImGui::StyleColorsClassic( ImGuiStyle* dst )
{
	ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
	ImVec4* colors = style->Colors;

	colors[ImGuiCol_Text]                   = ImVec4( 0.90f, 0.90f, 0.90f, 1.00f );
	colors[ImGuiCol_TextDisabled]           = ImVec4( 0.60f, 0.60f, 0.60f, 1.00f );
	colors[ImGuiCol_WindowBg]               = ImVec4( 0.00f, 0.00f, 0.00f, 0.70f );
	colors[ImGuiCol_ChildBg]                = ImVec4( 0.00f, 0.00f, 0.00f, 0.00f );
	colors[ImGuiCol_PopupBg]                = ImVec4( 0.11f, 0.11f, 0.14f, 0.92f );
	colors[ImGuiCol_Border]                 = ImVec4( 0.50f, 0.50f, 0.50f, 0.50f );
	colors[ImGuiCol_BorderShadow]           = ImVec4( 0.00f, 0.00f, 0.00f, 0.00f );
	colors[ImGuiCol_FrameBg]                = ImVec4( 0.43f, 0.43f, 0.43f, 0.39f );
	colors[ImGuiCol_FrameBgHovered]         = ImVec4( 0.47f, 0.47f, 0.69f, 0.40f );
	colors[ImGuiCol_FrameBgActive]          = ImVec4( 0.42f, 0.41f, 0.64f, 0.69f );
	colors[ImGuiCol_TitleBg]                = ImVec4( 0.27f, 0.27f, 0.54f, 0.83f );
	colors[ImGuiCol_TitleBgActive]          = ImVec4( 0.32f, 0.32f, 0.63f, 0.87f );
	colors[ImGuiCol_TitleBgCollapsed]       = ImVec4( 0.40f, 0.40f, 0.80f, 0.20f );
	colors[ImGuiCol_MenuBarBg]              = ImVec4( 0.40f, 0.40f, 0.55f, 0.80f );
	colors[ImGuiCol_ScrollbarBg]            = ImVec4( 0.20f, 0.25f, 0.30f, 0.60f );
	colors[ImGuiCol_ScrollbarGrab]          = ImVec4( 0.40f, 0.40f, 0.80f, 0.30f );
	colors[ImGuiCol_ScrollbarGrabHovered]   = ImVec4( 0.40f, 0.40f, 0.80f, 0.40f );
	colors[ImGuiCol_ScrollbarGrabActive]    = ImVec4( 0.41f, 0.39f, 0.80f, 0.60f );
	colors[ImGuiCol_CheckMark]              = ImVec4( 0.90f, 0.90f, 0.90f, 0.50f );
	colors[ImGuiCol_SliderGrab]             = ImVec4( 1.00f, 1.00f, 1.00f, 0.30f );
	colors[ImGuiCol_SliderGrabActive]       = ImVec4( 0.41f, 0.39f, 0.80f, 0.60f );
	colors[ImGuiCol_Button]                 = ImVec4( 0.35f, 0.40f, 0.61f, 0.62f );
	colors[ImGuiCol_ButtonHovered]          = ImVec4( 0.40f, 0.48f, 0.71f, 0.79f );
	colors[ImGuiCol_ButtonActive]           = ImVec4( 0.46f, 0.54f, 0.80f, 1.00f );
	colors[ImGuiCol_Header]                 = ImVec4( 0.40f, 0.40f, 0.90f, 0.45f );
	colors[ImGuiCol_HeaderHovered]          = ImVec4( 0.45f, 0.45f, 0.90f, 0.80f );
	colors[ImGuiCol_HeaderActive]           = ImVec4( 0.53f, 0.53f, 0.87f, 0.80f );
	colors[ImGuiCol_Separator]              = ImVec4( 0.50f, 0.50f, 0.50f, 0.60f );
	colors[ImGuiCol_SeparatorHovered]       = ImVec4( 0.60f, 0.60f, 0.70f, 1.00f );
	colors[ImGuiCol_SeparatorActive]        = ImVec4( 0.70f, 0.70f, 0.90f, 1.00f );
	colors[ImGuiCol_ResizeGrip]             = ImVec4( 1.00f, 1.00f, 1.00f, 0.16f );
	colors[ImGuiCol_ResizeGripHovered]      = ImVec4( 0.78f, 0.82f, 1.00f, 0.60f );
	colors[ImGuiCol_ResizeGripActive]       = ImVec4( 0.78f, 0.82f, 1.00f, 0.90f );
	colors[ImGuiCol_Tab]                    = ImLerp( colors[ImGuiCol_Header],       colors[ImGuiCol_TitleBgActive], 0.80f );
	colors[ImGuiCol_TabHovered]             = colors[ImGuiCol_HeaderHovered];
	colors[ImGuiCol_TabActive]              = ImLerp( colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f );
	colors[ImGuiCol_TabUnfocused]           = ImLerp( colors[ImGuiCol_Tab],          colors[ImGuiCol_TitleBg], 0.80f );
	colors[ImGuiCol_TabUnfocusedActive]     = ImLerp( colors[ImGuiCol_TabActive],    colors[ImGuiCol_TitleBg], 0.40f );
	colors[ImGuiCol_PlotLines]              = ImVec4( 1.00f, 1.00f, 1.00f, 1.00f );
	colors[ImGuiCol_PlotLinesHovered]       = ImVec4( 0.90f, 0.70f, 0.00f, 1.00f );
	colors[ImGuiCol_PlotHistogram]          = ImVec4( 0.90f, 0.70f, 0.00f, 1.00f );
	colors[ImGuiCol_PlotHistogramHovered]   = ImVec4( 1.00f, 0.60f, 0.00f, 1.00f );
	colors[ImGuiCol_TextSelectedBg]         = ImVec4( 0.00f, 0.00f, 1.00f, 0.35f );
	colors[ImGuiCol_DragDropTarget]         = ImVec4( 1.00f, 1.00f, 0.00f, 0.90f );
	colors[ImGuiCol_NavHighlight]           = colors[ImGuiCol_HeaderHovered];
	colors[ImGuiCol_NavWindowingHighlight]  = ImVec4( 1.00f, 1.00f, 1.00f, 0.70f );
	colors[ImGuiCol_NavWindowingDimBg]      = ImVec4( 0.80f, 0.80f, 0.80f, 0.20f );
	colors[ImGuiCol_ModalWindowDimBg]       = ImVec4( 0.20f, 0.20f, 0.20f, 0.35f );
}

// Those light colors are better suited with a thicker font than the default one + FrameBorder
void ImGui::StyleColorsLight( ImGuiStyle* dst )
{
	ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
	ImVec4* colors = style->Colors;

	colors[ImGuiCol_Text]                   = ImVec4( 0.00f, 0.00f, 0.00f, 1.00f );
	colors[ImGuiCol_TextDisabled]           = ImVec4( 0.60f, 0.60f, 0.60f, 1.00f );
	colors[ImGuiCol_WindowBg]               = ImVec4( 0.94f, 0.94f, 0.94f, 1.00f );
	colors[ImGuiCol_ChildBg]                = ImVec4( 0.00f, 0.00f, 0.00f, 0.00f );
	colors[ImGuiCol_PopupBg]                = ImVec4( 1.00f, 1.00f, 1.00f, 0.98f );
	colors[ImGuiCol_Border]                 = ImVec4( 0.00f, 0.00f, 0.00f, 0.30f );
	colors[ImGuiCol_BorderShadow]           = ImVec4( 0.00f, 0.00f, 0.00f, 0.00f );
	colors[ImGuiCol_FrameBg]                = ImVec4( 1.00f, 1.00f, 1.00f, 1.00f );
	colors[ImGuiCol_FrameBgHovered]         = ImVec4( 0.26f, 0.59f, 0.98f, 0.40f );
	colors[ImGuiCol_FrameBgActive]          = ImVec4( 0.26f, 0.59f, 0.98f, 0.67f );
	colors[ImGuiCol_TitleBg]                = ImVec4( 0.96f, 0.96f, 0.96f, 1.00f );
	colors[ImGuiCol_TitleBgActive]          = ImVec4( 0.82f, 0.82f, 0.82f, 1.00f );
	colors[ImGuiCol_TitleBgCollapsed]       = ImVec4( 1.00f, 1.00f, 1.00f, 0.51f );
	colors[ImGuiCol_MenuBarBg]              = ImVec4( 0.86f, 0.86f, 0.86f, 1.00f );
	colors[ImGuiCol_ScrollbarBg]            = ImVec4( 0.98f, 0.98f, 0.98f, 0.53f );
	colors[ImGuiCol_ScrollbarGrab]          = ImVec4( 0.69f, 0.69f, 0.69f, 0.80f );
	colors[ImGuiCol_ScrollbarGrabHovered]   = ImVec4( 0.49f, 0.49f, 0.49f, 0.80f );
	colors[ImGuiCol_ScrollbarGrabActive]    = ImVec4( 0.49f, 0.49f, 0.49f, 1.00f );
	colors[ImGuiCol_CheckMark]              = ImVec4( 0.26f, 0.59f, 0.98f, 1.00f );
	colors[ImGuiCol_SliderGrab]             = ImVec4( 0.26f, 0.59f, 0.98f, 0.78f );
	colors[ImGuiCol_SliderGrabActive]       = ImVec4( 0.46f, 0.54f, 0.80f, 0.60f );
	colors[ImGuiCol_Button]                 = ImVec4( 0.26f, 0.59f, 0.98f, 0.40f );
	colors[ImGuiCol_ButtonHovered]          = ImVec4( 0.26f, 0.59f, 0.98f, 1.00f );
	colors[ImGuiCol_ButtonActive]           = ImVec4( 0.06f, 0.53f, 0.98f, 1.00f );
	colors[ImGuiCol_Header]                 = ImVec4( 0.26f, 0.59f, 0.98f, 0.31f );
	colors[ImGuiCol_HeaderHovered]          = ImVec4( 0.26f, 0.59f, 0.98f, 0.80f );
	colors[ImGuiCol_HeaderActive]           = ImVec4( 0.26f, 0.59f, 0.98f, 1.00f );
	colors[ImGuiCol_Separator]              = ImVec4( 0.39f, 0.39f, 0.39f, 0.62f );
	colors[ImGuiCol_SeparatorHovered]       = ImVec4( 0.14f, 0.44f, 0.80f, 0.78f );
	colors[ImGuiCol_SeparatorActive]        = ImVec4( 0.14f, 0.44f, 0.80f, 1.00f );
	colors[ImGuiCol_ResizeGrip]             = ImVec4( 0.80f, 0.80f, 0.80f, 0.56f );
	colors[ImGuiCol_ResizeGripHovered]      = ImVec4( 0.26f, 0.59f, 0.98f, 0.67f );
	colors[ImGuiCol_ResizeGripActive]       = ImVec4( 0.26f, 0.59f, 0.98f, 0.95f );
	colors[ImGuiCol_Tab]                    = ImLerp( colors[ImGuiCol_Header],       colors[ImGuiCol_TitleBgActive], 0.90f );
	colors[ImGuiCol_TabHovered]             = colors[ImGuiCol_HeaderHovered];
	colors[ImGuiCol_TabActive]              = ImLerp( colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f );
	colors[ImGuiCol_TabUnfocused]           = ImLerp( colors[ImGuiCol_Tab],          colors[ImGuiCol_TitleBg], 0.80f );
	colors[ImGuiCol_TabUnfocusedActive]     = ImLerp( colors[ImGuiCol_TabActive],    colors[ImGuiCol_TitleBg], 0.40f );
	colors[ImGuiCol_PlotLines]              = ImVec4( 0.39f, 0.39f, 0.39f, 1.00f );
	colors[ImGuiCol_PlotLinesHovered]       = ImVec4( 1.00f, 0.43f, 0.35f, 1.00f );
	colors[ImGuiCol_PlotHistogram]          = ImVec4( 0.90f, 0.70f, 0.00f, 1.00f );
	colors[ImGuiCol_PlotHistogramHovered]   = ImVec4( 1.00f, 0.45f, 0.00f, 1.00f );
	colors[ImGuiCol_TextSelectedBg]         = ImVec4( 0.26f, 0.59f, 0.98f, 0.35f );
	colors[ImGuiCol_DragDropTarget]         = ImVec4( 0.26f, 0.59f, 0.98f, 0.95f );
	colors[ImGuiCol_NavHighlight]           = colors[ImGuiCol_HeaderHovered];
	colors[ImGuiCol_NavWindowingHighlight]  = ImVec4( 0.70f, 0.70f, 0.70f, 0.70f );
	colors[ImGuiCol_NavWindowingDimBg]      = ImVec4( 0.20f, 0.20f, 0.20f, 0.20f );
	colors[ImGuiCol_ModalWindowDimBg]       = ImVec4( 0.20f, 0.20f, 0.20f, 0.35f );
}

//-----------------------------------------------------------------------------
// ImDrawList
//-----------------------------------------------------------------------------

ImDrawListSharedData::ImDrawListSharedData()
{
	Font = NULL;
	FontSize = 0.0f;
	CurveTessellationTol = 0.0f;
	ClipRectFullscreen = ImVec4( -8192.0f, -8192.0f, +8192.0f, +8192.0f );
	InitialFlags = ImDrawListFlags_None;

	// Const data
	for( int i = 0; i < IM_ARRAYSIZE( CircleVtx12 ); i++ )
	{
		const float a = ( ( float )i * 2 * IM_PI ) / ( float )IM_ARRAYSIZE( CircleVtx12 );
		CircleVtx12[i] = ImVec2( ImCos( a ), ImSin( a ) );
	}
}

void ImDrawList::Clear()
{
	CmdBuffer.resize( 0 );
	IdxBuffer.resize( 0 );
	VtxBuffer.resize( 0 );
	Flags = _Data ? _Data->InitialFlags : ImDrawListFlags_None;
	_VtxCurrentOffset = 0;
	_VtxCurrentIdx = 0;
	_VtxWritePtr = NULL;
	_IdxWritePtr = NULL;
	_ClipRectStack.resize( 0 );
	_TextureIdStack.resize( 0 );
	_Path.resize( 0 );
	_Splitter.Clear();
}

void ImDrawList::ClearFreeMemory()
{
	CmdBuffer.clear();
	IdxBuffer.clear();
	VtxBuffer.clear();
	_VtxCurrentIdx = 0;
	_VtxWritePtr = NULL;
	_IdxWritePtr = NULL;
	_ClipRectStack.clear();
	_TextureIdStack.clear();
	_Path.clear();
	_Splitter.ClearFreeMemory();
}

ImDrawList* ImDrawList::CloneOutput() const
{
	ImDrawList* dst = IM_NEW( ImDrawList( _Data ) );
	dst->CmdBuffer = CmdBuffer;
	dst->IdxBuffer = IdxBuffer;
	dst->VtxBuffer = VtxBuffer;
	dst->Flags = Flags;
	return dst;
}

// Using macros because C++ is a terrible language, we want guaranteed inline, no code in header, and no overhead in Debug builds
#define GetCurrentClipRect()    (_ClipRectStack.Size ? _ClipRectStack.Data[_ClipRectStack.Size-1]  : _Data->ClipRectFullscreen)
#define GetCurrentTextureId()   (_TextureIdStack.Size ? _TextureIdStack.Data[_TextureIdStack.Size-1] : (ImTextureID)NULL)

void ImDrawList::AddDrawCmd()
{
	ImDrawCmd draw_cmd;
	draw_cmd.ClipRect = GetCurrentClipRect();
	draw_cmd.TextureId = GetCurrentTextureId();
	draw_cmd.VtxOffset = _VtxCurrentOffset;
	draw_cmd.IdxOffset = IdxBuffer.Size;

	IM_ASSERT( draw_cmd.ClipRect.x <= draw_cmd.ClipRect.z && draw_cmd.ClipRect.y <= draw_cmd.ClipRect.w );
	CmdBuffer.push_back( draw_cmd );
}

void ImDrawList::AddCallback( ImDrawCallback callback, void* callback_data )
{
	ImDrawCmd* current_cmd = CmdBuffer.Size ? &CmdBuffer.back() : NULL;
	if( !current_cmd || current_cmd->ElemCount != 0 || current_cmd->UserCallback != NULL )
	{
		AddDrawCmd();
		current_cmd = &CmdBuffer.back();
	}
	current_cmd->UserCallback = callback;
	current_cmd->UserCallbackData = callback_data;

	AddDrawCmd(); // Force a new command after us (see comment below)
}

// Our scheme may appears a bit unusual, basically we want the most-common calls AddLine AddRect etc. to not have to perform any check so we always have a command ready in the stack.
// The cost of figuring out if a new command has to be added or if we can merge is paid in those Update** functions only.
void ImDrawList::UpdateClipRect()
{
	// If current command is used with different settings we need to add a new command
	const ImVec4 curr_clip_rect = GetCurrentClipRect();
	ImDrawCmd* curr_cmd = CmdBuffer.Size > 0 ? &CmdBuffer.Data[CmdBuffer.Size - 1] : NULL;
	if( !curr_cmd || ( curr_cmd->ElemCount != 0 && memcmp( &curr_cmd->ClipRect, &curr_clip_rect, sizeof( ImVec4 ) ) != 0 ) || curr_cmd->UserCallback != NULL )
	{
		AddDrawCmd();
		return;
	}

	// Try to merge with previous command if it matches, else use current command
	ImDrawCmd* prev_cmd = CmdBuffer.Size > 1 ? curr_cmd - 1 : NULL;
	if( curr_cmd->ElemCount == 0 && prev_cmd && memcmp( &prev_cmd->ClipRect, &curr_clip_rect, sizeof( ImVec4 ) ) == 0 && prev_cmd->TextureId == GetCurrentTextureId() && prev_cmd->UserCallback == NULL )
	{
		CmdBuffer.pop_back();
	}
	else
	{
		curr_cmd->ClipRect = curr_clip_rect;
	}
}

void ImDrawList::UpdateTextureID()
{
	// If current command is used with different settings we need to add a new command
	const ImTextureID curr_texture_id = GetCurrentTextureId();
	ImDrawCmd* curr_cmd = CmdBuffer.Size ? &CmdBuffer.back() : NULL;
	if( !curr_cmd || ( curr_cmd->ElemCount != 0 && curr_cmd->TextureId != curr_texture_id ) || curr_cmd->UserCallback != NULL )
	{
		AddDrawCmd();
		return;
	}

	// Try to merge with previous command if it matches, else use current command
	ImDrawCmd* prev_cmd = CmdBuffer.Size > 1 ? curr_cmd - 1 : NULL;
	if( curr_cmd->ElemCount == 0 && prev_cmd && prev_cmd->TextureId == curr_texture_id && memcmp( &prev_cmd->ClipRect, &GetCurrentClipRect(), sizeof( ImVec4 ) ) == 0 && prev_cmd->UserCallback == NULL )
	{
		CmdBuffer.pop_back();
	}
	else
	{
		curr_cmd->TextureId = curr_texture_id;
	}
}

#undef GetCurrentClipRect
#undef GetCurrentTextureId

// Render-level scissoring. This is passed down to your render function but not used for CPU-side coarse clipping. Prefer using higher-level ImGui::PushClipRect() to affect logic (hit-testing and widget culling)
void ImDrawList::PushClipRect( ImVec2 cr_min, ImVec2 cr_max, bool intersect_with_current_clip_rect )
{
	ImVec4 cr( cr_min.x, cr_min.y, cr_max.x, cr_max.y );
	if( intersect_with_current_clip_rect && _ClipRectStack.Size )
	{
		ImVec4 current = _ClipRectStack.Data[_ClipRectStack.Size - 1];
		if( cr.x < current.x )
		{
			cr.x = current.x;
		}
		if( cr.y < current.y )
		{
			cr.y = current.y;
		}
		if( cr.z > current.z )
		{
			cr.z = current.z;
		}
		if( cr.w > current.w )
		{
			cr.w = current.w;
		}
	}
	cr.z = ImMax( cr.x, cr.z );
	cr.w = ImMax( cr.y, cr.w );

	_ClipRectStack.push_back( cr );
	UpdateClipRect();
}

void ImDrawList::PushClipRectFullScreen()
{
	PushClipRect( ImVec2( _Data->ClipRectFullscreen.x, _Data->ClipRectFullscreen.y ), ImVec2( _Data->ClipRectFullscreen.z, _Data->ClipRectFullscreen.w ) );
}

void ImDrawList::PopClipRect()
{
	IM_ASSERT( _ClipRectStack.Size > 0 );
	_ClipRectStack.pop_back();
	UpdateClipRect();
}

void ImDrawList::PushTextureID( ImTextureID texture_id )
{
	_TextureIdStack.push_back( texture_id );
	UpdateTextureID();
}

void ImDrawList::PopTextureID()
{
	IM_ASSERT( _TextureIdStack.Size > 0 );
	_TextureIdStack.pop_back();
	UpdateTextureID();
}

// NB: this can be called with negative count for removing primitives (as long as the result does not underflow)
void ImDrawList::PrimReserve( int idx_count, int vtx_count )
{
	// Large mesh support (when enabled)
	if( sizeof( ImDrawIdx ) == 2 && ( _VtxCurrentIdx + vtx_count >= ( 1 << 16 ) ) && ( Flags & ImDrawListFlags_AllowVtxOffset ) )
	{
		_VtxCurrentOffset = VtxBuffer.Size;
		_VtxCurrentIdx = 0;
		AddDrawCmd();
	}

	ImDrawCmd& draw_cmd = CmdBuffer.Data[CmdBuffer.Size - 1];
	draw_cmd.ElemCount += idx_count;

	int vtx_buffer_old_size = VtxBuffer.Size;
	VtxBuffer.resize( vtx_buffer_old_size + vtx_count );
	_VtxWritePtr = VtxBuffer.Data + vtx_buffer_old_size;

	int idx_buffer_old_size = IdxBuffer.Size;
	IdxBuffer.resize( idx_buffer_old_size + idx_count );
	_IdxWritePtr = IdxBuffer.Data + idx_buffer_old_size;
}

// Fully unrolled with inline call to keep our debug builds decently fast.
void ImDrawList::PrimRect( const ImVec2& a, const ImVec2& c, ImU32 col )
{
	ImVec2 b( c.x, a.y ), d( a.x, c.y ), uv( _Data->TexUvWhitePixel );
	ImDrawIdx idx = ( ImDrawIdx )_VtxCurrentIdx;
	_IdxWritePtr[0] = idx;
	_IdxWritePtr[1] = ( ImDrawIdx )( idx + 1 );
	_IdxWritePtr[2] = ( ImDrawIdx )( idx + 2 );
	_IdxWritePtr[3] = idx;
	_IdxWritePtr[4] = ( ImDrawIdx )( idx + 2 );
	_IdxWritePtr[5] = ( ImDrawIdx )( idx + 3 );
	_VtxWritePtr[0].pos = a;
	_VtxWritePtr[0].uv = uv;
	_VtxWritePtr[0].col = col;
	_VtxWritePtr[1].pos = b;
	_VtxWritePtr[1].uv = uv;
	_VtxWritePtr[1].col = col;
	_VtxWritePtr[2].pos = c;
	_VtxWritePtr[2].uv = uv;
	_VtxWritePtr[2].col = col;
	_VtxWritePtr[3].pos = d;
	_VtxWritePtr[3].uv = uv;
	_VtxWritePtr[3].col = col;
	_VtxWritePtr += 4;
	_VtxCurrentIdx += 4;
	_IdxWritePtr += 6;
}

void ImDrawList::PrimRectUV( const ImVec2& a, const ImVec2& c, const ImVec2& uv_a, const ImVec2& uv_c, ImU32 col )
{
	ImVec2 b( c.x, a.y ), d( a.x, c.y ), uv_b( uv_c.x, uv_a.y ), uv_d( uv_a.x, uv_c.y );
	ImDrawIdx idx = ( ImDrawIdx )_VtxCurrentIdx;
	_IdxWritePtr[0] = idx;
	_IdxWritePtr[1] = ( ImDrawIdx )( idx + 1 );
	_IdxWritePtr[2] = ( ImDrawIdx )( idx + 2 );
	_IdxWritePtr[3] = idx;
	_IdxWritePtr[4] = ( ImDrawIdx )( idx + 2 );
	_IdxWritePtr[5] = ( ImDrawIdx )( idx + 3 );
	_VtxWritePtr[0].pos = a;
	_VtxWritePtr[0].uv = uv_a;
	_VtxWritePtr[0].col = col;
	_VtxWritePtr[1].pos = b;
	_VtxWritePtr[1].uv = uv_b;
	_VtxWritePtr[1].col = col;
	_VtxWritePtr[2].pos = c;
	_VtxWritePtr[2].uv = uv_c;
	_VtxWritePtr[2].col = col;
	_VtxWritePtr[3].pos = d;
	_VtxWritePtr[3].uv = uv_d;
	_VtxWritePtr[3].col = col;
	_VtxWritePtr += 4;
	_VtxCurrentIdx += 4;
	_IdxWritePtr += 6;
}

void ImDrawList::PrimQuadUV( const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& d, const ImVec2& uv_a, const ImVec2& uv_b, const ImVec2& uv_c, const ImVec2& uv_d, ImU32 col )
{
	ImDrawIdx idx = ( ImDrawIdx )_VtxCurrentIdx;
	_IdxWritePtr[0] = idx;
	_IdxWritePtr[1] = ( ImDrawIdx )( idx + 1 );
	_IdxWritePtr[2] = ( ImDrawIdx )( idx + 2 );
	_IdxWritePtr[3] = idx;
	_IdxWritePtr[4] = ( ImDrawIdx )( idx + 2 );
	_IdxWritePtr[5] = ( ImDrawIdx )( idx + 3 );
	_VtxWritePtr[0].pos = a;
	_VtxWritePtr[0].uv = uv_a;
	_VtxWritePtr[0].col = col;
	_VtxWritePtr[1].pos = b;
	_VtxWritePtr[1].uv = uv_b;
	_VtxWritePtr[1].col = col;
	_VtxWritePtr[2].pos = c;
	_VtxWritePtr[2].uv = uv_c;
	_VtxWritePtr[2].col = col;
	_VtxWritePtr[3].pos = d;
	_VtxWritePtr[3].uv = uv_d;
	_VtxWritePtr[3].col = col;
	_VtxWritePtr += 4;
	_VtxCurrentIdx += 4;
	_IdxWritePtr += 6;
}

// On AddPolyline() and AddConvexPolyFilled() we intentionally avoid using ImVec2 and superflous function calls to optimize debug/non-inlined builds.
// Those macros expects l-values.
#define IM_NORMALIZE2F_OVER_ZERO(VX,VY)     { float d2 = VX*VX + VY*VY; if (d2 > 0.0f) { float inv_len = 1.0f / ImSqrt(d2); VX *= inv_len; VY *= inv_len; } }
#define IM_FIXNORMAL2F(VX,VY)               { float d2 = VX*VX + VY*VY; if (d2 < 0.5f) d2 = 0.5f; float inv_lensq = 1.0f / d2; VX *= inv_lensq; VY *= inv_lensq; }

// TODO: Thickness anti-aliased lines cap are missing their AA fringe.
// We avoid using the ImVec2 math operators here to reduce cost to a minimum for debug/non-inlined builds.
void ImDrawList::AddPolyline( const ImVec2* points, const int points_count, ImU32 col, bool closed, float thickness )
{
	if( points_count < 2 )
	{
		return;
	}

	const ImVec2 uv = _Data->TexUvWhitePixel;

	int count = points_count;
	if( !closed )
	{
		count = points_count - 1;
	}

	const bool thick_line = thickness > 1.0f;
	if( Flags & ImDrawListFlags_AntiAliasedLines )
	{
		// Anti-aliased stroke
		const float AA_SIZE = 1.0f;
		const ImU32 col_trans = col & ~IM_COL32_A_MASK;

		const int idx_count = thick_line ? count * 18 : count * 12;
		const int vtx_count = thick_line ? points_count * 4 : points_count * 3;
		PrimReserve( idx_count, vtx_count );

		// Temporary buffer
		ImVec2* temp_normals = ( ImVec2* )alloca( points_count * ( thick_line ? 5 : 3 ) * sizeof( ImVec2 ) ); //-V630
		ImVec2* temp_points = temp_normals + points_count;

		for( int i1 = 0; i1 < count; i1++ )
		{
			const int i2 = ( i1 + 1 ) == points_count ? 0 : i1 + 1;
			float dx = points[i2].x - points[i1].x;
			float dy = points[i2].y - points[i1].y;
			IM_NORMALIZE2F_OVER_ZERO( dx, dy );
			temp_normals[i1].x = dy;
			temp_normals[i1].y = -dx;
		}
		if( !closed )
		{
			temp_normals[points_count - 1] = temp_normals[points_count - 2];
		}

		if( !thick_line )
		{
			if( !closed )
			{
				temp_points[0] = points[0] + temp_normals[0] * AA_SIZE;
				temp_points[1] = points[0] - temp_normals[0] * AA_SIZE;
				temp_points[( points_count - 1 ) * 2 + 0] = points[points_count - 1] + temp_normals[points_count - 1] * AA_SIZE;
				temp_points[( points_count - 1 ) * 2 + 1] = points[points_count - 1] - temp_normals[points_count - 1] * AA_SIZE;
			}

			// FIXME-OPT: Merge the different loops, possibly remove the temporary buffer.
			unsigned int idx1 = _VtxCurrentIdx;
			for( int i1 = 0; i1 < count; i1++ )
			{
				const int i2 = ( i1 + 1 ) == points_count ? 0 : i1 + 1;
				unsigned int idx2 = ( i1 + 1 ) == points_count ? _VtxCurrentIdx : idx1 + 3;

				// Average normals
				float dm_x = ( temp_normals[i1].x + temp_normals[i2].x ) * 0.5f;
				float dm_y = ( temp_normals[i1].y + temp_normals[i2].y ) * 0.5f;
				IM_FIXNORMAL2F( dm_x, dm_y )
				dm_x *= AA_SIZE;
				dm_y *= AA_SIZE;

				// Add temporary vertexes
				ImVec2* out_vtx = &temp_points[i2 * 2];
				out_vtx[0].x = points[i2].x + dm_x;
				out_vtx[0].y = points[i2].y + dm_y;
				out_vtx[1].x = points[i2].x - dm_x;
				out_vtx[1].y = points[i2].y - dm_y;

				// Add indexes
				_IdxWritePtr[0] = ( ImDrawIdx )( idx2 + 0 );
				_IdxWritePtr[1] = ( ImDrawIdx )( idx1 + 0 );
				_IdxWritePtr[2] = ( ImDrawIdx )( idx1 + 2 );
				_IdxWritePtr[3] = ( ImDrawIdx )( idx1 + 2 );
				_IdxWritePtr[4] = ( ImDrawIdx )( idx2 + 2 );
				_IdxWritePtr[5] = ( ImDrawIdx )( idx2 + 0 );
				_IdxWritePtr[6] = ( ImDrawIdx )( idx2 + 1 );
				_IdxWritePtr[7] = ( ImDrawIdx )( idx1 + 1 );
				_IdxWritePtr[8] = ( ImDrawIdx )( idx1 + 0 );
				_IdxWritePtr[9] = ( ImDrawIdx )( idx1 + 0 );
				_IdxWritePtr[10] = ( ImDrawIdx )( idx2 + 0 );
				_IdxWritePtr[11] = ( ImDrawIdx )( idx2 + 1 );
				_IdxWritePtr += 12;

				idx1 = idx2;
			}

			// Add vertexes
			for( int i = 0; i < points_count; i++ )
			{
				_VtxWritePtr[0].pos = points[i];
				_VtxWritePtr[0].uv = uv;
				_VtxWritePtr[0].col = col;
				_VtxWritePtr[1].pos = temp_points[i * 2 + 0];
				_VtxWritePtr[1].uv = uv;
				_VtxWritePtr[1].col = col_trans;
				_VtxWritePtr[2].pos = temp_points[i * 2 + 1];
				_VtxWritePtr[2].uv = uv;
				_VtxWritePtr[2].col = col_trans;
				_VtxWritePtr += 3;
			}
		}
		else
		{
			const float half_inner_thickness = ( thickness - AA_SIZE ) * 0.5f;
			if( !closed )
			{
				temp_points[0] = points[0] + temp_normals[0] * ( half_inner_thickness + AA_SIZE );
				temp_points[1] = points[0] + temp_normals[0] * ( half_inner_thickness );
				temp_points[2] = points[0] - temp_normals[0] * ( half_inner_thickness );
				temp_points[3] = points[0] - temp_normals[0] * ( half_inner_thickness + AA_SIZE );
				temp_points[( points_count - 1 ) * 4 + 0] = points[points_count - 1] + temp_normals[points_count - 1] * ( half_inner_thickness + AA_SIZE );
				temp_points[( points_count - 1 ) * 4 + 1] = points[points_count - 1] + temp_normals[points_count - 1] * ( half_inner_thickness );
				temp_points[( points_count - 1 ) * 4 + 2] = points[points_count - 1] - temp_normals[points_count - 1] * ( half_inner_thickness );
				temp_points[( points_count - 1 ) * 4 + 3] = points[points_count - 1] - temp_normals[points_count - 1] * ( half_inner_thickness + AA_SIZE );
			}

			// FIXME-OPT: Merge the different loops, possibly remove the temporary buffer.
			unsigned int idx1 = _VtxCurrentIdx;
			for( int i1 = 0; i1 < count; i1++ )
			{
				const int i2 = ( i1 + 1 ) == points_count ? 0 : i1 + 1;
				unsigned int idx2 = ( i1 + 1 ) == points_count ? _VtxCurrentIdx : idx1 + 4;

				// Average normals
				float dm_x = ( temp_normals[i1].x + temp_normals[i2].x ) * 0.5f;
				float dm_y = ( temp_normals[i1].y + temp_normals[i2].y ) * 0.5f;
				IM_FIXNORMAL2F( dm_x, dm_y );
				float dm_out_x = dm_x * ( half_inner_thickness + AA_SIZE );
				float dm_out_y = dm_y * ( half_inner_thickness + AA_SIZE );
				float dm_in_x = dm_x * half_inner_thickness;
				float dm_in_y = dm_y * half_inner_thickness;

				// Add temporary vertexes
				ImVec2* out_vtx = &temp_points[i2 * 4];
				out_vtx[0].x = points[i2].x + dm_out_x;
				out_vtx[0].y = points[i2].y + dm_out_y;
				out_vtx[1].x = points[i2].x + dm_in_x;
				out_vtx[1].y = points[i2].y + dm_in_y;
				out_vtx[2].x = points[i2].x - dm_in_x;
				out_vtx[2].y = points[i2].y - dm_in_y;
				out_vtx[3].x = points[i2].x - dm_out_x;
				out_vtx[3].y = points[i2].y - dm_out_y;

				// Add indexes
				_IdxWritePtr[0]  = ( ImDrawIdx )( idx2 + 1 );
				_IdxWritePtr[1]  = ( ImDrawIdx )( idx1 + 1 );
				_IdxWritePtr[2]  = ( ImDrawIdx )( idx1 + 2 );
				_IdxWritePtr[3]  = ( ImDrawIdx )( idx1 + 2 );
				_IdxWritePtr[4]  = ( ImDrawIdx )( idx2 + 2 );
				_IdxWritePtr[5]  = ( ImDrawIdx )( idx2 + 1 );
				_IdxWritePtr[6]  = ( ImDrawIdx )( idx2 + 1 );
				_IdxWritePtr[7]  = ( ImDrawIdx )( idx1 + 1 );
				_IdxWritePtr[8]  = ( ImDrawIdx )( idx1 + 0 );
				_IdxWritePtr[9]  = ( ImDrawIdx )( idx1 + 0 );
				_IdxWritePtr[10] = ( ImDrawIdx )( idx2 + 0 );
				_IdxWritePtr[11] = ( ImDrawIdx )( idx2 + 1 );
				_IdxWritePtr[12] = ( ImDrawIdx )( idx2 + 2 );
				_IdxWritePtr[13] = ( ImDrawIdx )( idx1 + 2 );
				_IdxWritePtr[14] = ( ImDrawIdx )( idx1 + 3 );
				_IdxWritePtr[15] = ( ImDrawIdx )( idx1 + 3 );
				_IdxWritePtr[16] = ( ImDrawIdx )( idx2 + 3 );
				_IdxWritePtr[17] = ( ImDrawIdx )( idx2 + 2 );
				_IdxWritePtr += 18;

				idx1 = idx2;
			}

			// Add vertexes
			for( int i = 0; i < points_count; i++ )
			{
				_VtxWritePtr[0].pos = temp_points[i * 4 + 0];
				_VtxWritePtr[0].uv = uv;
				_VtxWritePtr[0].col = col_trans;
				_VtxWritePtr[1].pos = temp_points[i * 4 + 1];
				_VtxWritePtr[1].uv = uv;
				_VtxWritePtr[1].col = col;
				_VtxWritePtr[2].pos = temp_points[i * 4 + 2];
				_VtxWritePtr[2].uv = uv;
				_VtxWritePtr[2].col = col;
				_VtxWritePtr[3].pos = temp_points[i * 4 + 3];
				_VtxWritePtr[3].uv = uv;
				_VtxWritePtr[3].col = col_trans;
				_VtxWritePtr += 4;
			}
		}
		_VtxCurrentIdx += ( ImDrawIdx )vtx_count;
	}
	else
	{
		// Non Anti-aliased Stroke
		const int idx_count = count * 6;
		const int vtx_count = count * 4;    // FIXME-OPT: Not sharing edges
		PrimReserve( idx_count, vtx_count );

		for( int i1 = 0; i1 < count; i1++ )
		{
			const int i2 = ( i1 + 1 ) == points_count ? 0 : i1 + 1;
			const ImVec2& p1 = points[i1];
			const ImVec2& p2 = points[i2];

			float dx = p2.x - p1.x;
			float dy = p2.y - p1.y;
			IM_NORMALIZE2F_OVER_ZERO( dx, dy );
			dx *= ( thickness * 0.5f );
			dy *= ( thickness * 0.5f );

			_VtxWritePtr[0].pos.x = p1.x + dy;
			_VtxWritePtr[0].pos.y = p1.y - dx;
			_VtxWritePtr[0].uv = uv;
			_VtxWritePtr[0].col = col;
			_VtxWritePtr[1].pos.x = p2.x + dy;
			_VtxWritePtr[1].pos.y = p2.y - dx;
			_VtxWritePtr[1].uv = uv;
			_VtxWritePtr[1].col = col;
			_VtxWritePtr[2].pos.x = p2.x - dy;
			_VtxWritePtr[2].pos.y = p2.y + dx;
			_VtxWritePtr[2].uv = uv;
			_VtxWritePtr[2].col = col;
			_VtxWritePtr[3].pos.x = p1.x - dy;
			_VtxWritePtr[3].pos.y = p1.y + dx;
			_VtxWritePtr[3].uv = uv;
			_VtxWritePtr[3].col = col;
			_VtxWritePtr += 4;

			_IdxWritePtr[0] = ( ImDrawIdx )( _VtxCurrentIdx );
			_IdxWritePtr[1] = ( ImDrawIdx )( _VtxCurrentIdx + 1 );
			_IdxWritePtr[2] = ( ImDrawIdx )( _VtxCurrentIdx + 2 );
			_IdxWritePtr[3] = ( ImDrawIdx )( _VtxCurrentIdx );
			_IdxWritePtr[4] = ( ImDrawIdx )( _VtxCurrentIdx + 2 );
			_IdxWritePtr[5] = ( ImDrawIdx )( _VtxCurrentIdx + 3 );
			_IdxWritePtr += 6;
			_VtxCurrentIdx += 4;
		}
	}
}

// We intentionally avoid using ImVec2 and its math operators here to reduce cost to a minimum for debug/non-inlined builds.
void ImDrawList::AddConvexPolyFilled( const ImVec2* points, const int points_count, ImU32 col )
{
	if( points_count < 3 )
	{
		return;
	}

	const ImVec2 uv = _Data->TexUvWhitePixel;

	if( Flags & ImDrawListFlags_AntiAliasedFill )
	{
		// Anti-aliased Fill
		const float AA_SIZE = 1.0f;
		const ImU32 col_trans = col & ~IM_COL32_A_MASK;
		const int idx_count = ( points_count - 2 ) * 3 + points_count * 6;
		const int vtx_count = ( points_count * 2 );
		PrimReserve( idx_count, vtx_count );

		// Add indexes for fill
		unsigned int vtx_inner_idx = _VtxCurrentIdx;
		unsigned int vtx_outer_idx = _VtxCurrentIdx + 1;
		for( int i = 2; i < points_count; i++ )
		{
			_IdxWritePtr[0] = ( ImDrawIdx )( vtx_inner_idx );
			_IdxWritePtr[1] = ( ImDrawIdx )( vtx_inner_idx + ( ( i - 1 ) << 1 ) );
			_IdxWritePtr[2] = ( ImDrawIdx )( vtx_inner_idx + ( i << 1 ) );
			_IdxWritePtr += 3;
		}

		// Compute normals
		ImVec2* temp_normals = ( ImVec2* )alloca( points_count * sizeof( ImVec2 ) ); //-V630
		for( int i0 = points_count - 1, i1 = 0; i1 < points_count; i0 = i1++ )
		{
			const ImVec2& p0 = points[i0];
			const ImVec2& p1 = points[i1];
			float dx = p1.x - p0.x;
			float dy = p1.y - p0.y;
			IM_NORMALIZE2F_OVER_ZERO( dx, dy );
			temp_normals[i0].x = dy;
			temp_normals[i0].y = -dx;
		}

		for( int i0 = points_count - 1, i1 = 0; i1 < points_count; i0 = i1++ )
		{
			// Average normals
			const ImVec2& n0 = temp_normals[i0];
			const ImVec2& n1 = temp_normals[i1];
			float dm_x = ( n0.x + n1.x ) * 0.5f;
			float dm_y = ( n0.y + n1.y ) * 0.5f;
			IM_FIXNORMAL2F( dm_x, dm_y );
			dm_x *= AA_SIZE * 0.5f;
			dm_y *= AA_SIZE * 0.5f;

			// Add vertices
			_VtxWritePtr[0].pos.x = ( points[i1].x - dm_x );
			_VtxWritePtr[0].pos.y = ( points[i1].y - dm_y );
			_VtxWritePtr[0].uv = uv;
			_VtxWritePtr[0].col = col;        // Inner
			_VtxWritePtr[1].pos.x = ( points[i1].x + dm_x );
			_VtxWritePtr[1].pos.y = ( points[i1].y + dm_y );
			_VtxWritePtr[1].uv = uv;
			_VtxWritePtr[1].col = col_trans;  // Outer
			_VtxWritePtr += 2;

			// Add indexes for fringes
			_IdxWritePtr[0] = ( ImDrawIdx )( vtx_inner_idx + ( i1 << 1 ) );
			_IdxWritePtr[1] = ( ImDrawIdx )( vtx_inner_idx + ( i0 << 1 ) );
			_IdxWritePtr[2] = ( ImDrawIdx )( vtx_outer_idx + ( i0 << 1 ) );
			_IdxWritePtr[3] = ( ImDrawIdx )( vtx_outer_idx + ( i0 << 1 ) );
			_IdxWritePtr[4] = ( ImDrawIdx )( vtx_outer_idx + ( i1 << 1 ) );
			_IdxWritePtr[5] = ( ImDrawIdx )( vtx_inner_idx + ( i1 << 1 ) );
			_IdxWritePtr += 6;
		}
		_VtxCurrentIdx += ( ImDrawIdx )vtx_count;
	}
	else
	{
		// Non Anti-aliased Fill
		const int idx_count = ( points_count - 2 ) * 3;
		const int vtx_count = points_count;
		PrimReserve( idx_count, vtx_count );
		for( int i = 0; i < vtx_count; i++ )
		{
			_VtxWritePtr[0].pos = points[i];
			_VtxWritePtr[0].uv = uv;
			_VtxWritePtr[0].col = col;
			_VtxWritePtr++;
		}
		for( int i = 2; i < points_count; i++ )
		{
			_IdxWritePtr[0] = ( ImDrawIdx )( _VtxCurrentIdx );
			_IdxWritePtr[1] = ( ImDrawIdx )( _VtxCurrentIdx + i - 1 );
			_IdxWritePtr[2] = ( ImDrawIdx )( _VtxCurrentIdx + i );
			_IdxWritePtr += 3;
		}
		_VtxCurrentIdx += ( ImDrawIdx )vtx_count;
	}
}

void ImDrawList::PathArcToFast( const ImVec2& center, float radius, int a_min_of_12, int a_max_of_12 )
{
	if( radius == 0.0f || a_min_of_12 > a_max_of_12 )
	{
		_Path.push_back( center );
		return;
	}
	_Path.reserve( _Path.Size + ( a_max_of_12 - a_min_of_12 + 1 ) );
	for( int a = a_min_of_12; a <= a_max_of_12; a++ )
	{
		const ImVec2& c = _Data->CircleVtx12[a % IM_ARRAYSIZE( _Data->CircleVtx12 )];
		_Path.push_back( ImVec2( center.x + c.x * radius, center.y + c.y * radius ) );
	}
}

void ImDrawList::PathArcTo( const ImVec2& center, float radius, float a_min, float a_max, int num_segments )
{
	if( radius == 0.0f )
	{
		_Path.push_back( center );
		return;
	}

	// Note that we are adding a point at both a_min and a_max.
	// If you are trying to draw a full closed circle you don't want the overlapping points!
	_Path.reserve( _Path.Size + ( num_segments + 1 ) );
	for( int i = 0; i <= num_segments; i++ )
	{
		const float a = a_min + ( ( float )i / ( float )num_segments ) * ( a_max - a_min );
		_Path.push_back( ImVec2( center.x + ImCos( a ) * radius, center.y + ImSin( a ) * radius ) );
	}
}

static void PathBezierToCasteljau( ImVector<ImVec2>* path, float x1, float y1, float x2, float y2, float x3, float y3, float x4, float y4, float tess_tol, int level )
{
	float dx = x4 - x1;
	float dy = y4 - y1;
	float d2 = ( ( x2 - x4 ) * dy - ( y2 - y4 ) * dx );
	float d3 = ( ( x3 - x4 ) * dy - ( y3 - y4 ) * dx );
	d2 = ( d2 >= 0 ) ? d2 : -d2;
	d3 = ( d3 >= 0 ) ? d3 : -d3;
	if( ( d2 + d3 ) * ( d2 + d3 ) < tess_tol * ( dx * dx + dy * dy ) )
	{
		path->push_back( ImVec2( x4, y4 ) );
	}
	else if( level < 10 )
	{
		float x12 = ( x1 + x2 ) * 0.5f,       y12 = ( y1 + y2 ) * 0.5f;
		float x23 = ( x2 + x3 ) * 0.5f,       y23 = ( y2 + y3 ) * 0.5f;
		float x34 = ( x3 + x4 ) * 0.5f,       y34 = ( y3 + y4 ) * 0.5f;
		float x123 = ( x12 + x23 ) * 0.5f,    y123 = ( y12 + y23 ) * 0.5f;
		float x234 = ( x23 + x34 ) * 0.5f,    y234 = ( y23 + y34 ) * 0.5f;
		float x1234 = ( x123 + x234 ) * 0.5f, y1234 = ( y123 + y234 ) * 0.5f;

		PathBezierToCasteljau( path, x1, y1,        x12, y12,    x123, y123,  x1234, y1234, tess_tol, level + 1 );
		PathBezierToCasteljau( path, x1234, y1234,  x234, y234,  x34, y34,    x4, y4,       tess_tol, level + 1 );
	}
}

void ImDrawList::PathBezierCurveTo( const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, int num_segments )
{
	ImVec2 p1 = _Path.back();
	if( num_segments == 0 )
	{
		// Auto-tessellated
		PathBezierToCasteljau( &_Path, p1.x, p1.y, p2.x, p2.y, p3.x, p3.y, p4.x, p4.y, _Data->CurveTessellationTol, 0 );
	}
	else
	{
		float t_step = 1.0f / ( float )num_segments;
		for( int i_step = 1; i_step <= num_segments; i_step++ )
		{
			float t = t_step * i_step;
			float u = 1.0f - t;
			float w1 = u * u * u;
			float w2 = 3 * u * u * t;
			float w3 = 3 * u * t * t;
			float w4 = t * t * t;
			_Path.push_back( ImVec2( w1 * p1.x + w2 * p2.x + w3 * p3.x + w4 * p4.x, w1 * p1.y + w2 * p2.y + w3 * p3.y + w4 * p4.y ) );
		}
	}
}

void ImDrawList::PathRect( const ImVec2& a, const ImVec2& b, float rounding, ImDrawCornerFlags rounding_corners )
{
	rounding = ImMin( rounding, ImFabs( b.x - a.x ) * ( ( ( rounding_corners & ImDrawCornerFlags_Top )  == ImDrawCornerFlags_Top )  || ( ( rounding_corners & ImDrawCornerFlags_Bot )   == ImDrawCornerFlags_Bot )   ? 0.5f : 1.0f ) - 1.0f );
	rounding = ImMin( rounding, ImFabs( b.y - a.y ) * ( ( ( rounding_corners & ImDrawCornerFlags_Left ) == ImDrawCornerFlags_Left ) || ( ( rounding_corners & ImDrawCornerFlags_Right ) == ImDrawCornerFlags_Right ) ? 0.5f : 1.0f ) - 1.0f );

	if( rounding <= 0.0f || rounding_corners == 0 )
	{
		PathLineTo( a );
		PathLineTo( ImVec2( b.x, a.y ) );
		PathLineTo( b );
		PathLineTo( ImVec2( a.x, b.y ) );
	}
	else
	{
		const float rounding_tl = ( rounding_corners & ImDrawCornerFlags_TopLeft ) ? rounding : 0.0f;
		const float rounding_tr = ( rounding_corners & ImDrawCornerFlags_TopRight ) ? rounding : 0.0f;
		const float rounding_br = ( rounding_corners & ImDrawCornerFlags_BotRight ) ? rounding : 0.0f;
		const float rounding_bl = ( rounding_corners & ImDrawCornerFlags_BotLeft ) ? rounding : 0.0f;
		PathArcToFast( ImVec2( a.x + rounding_tl, a.y + rounding_tl ), rounding_tl, 6, 9 );
		PathArcToFast( ImVec2( b.x - rounding_tr, a.y + rounding_tr ), rounding_tr, 9, 12 );
		PathArcToFast( ImVec2( b.x - rounding_br, b.y - rounding_br ), rounding_br, 0, 3 );
		PathArcToFast( ImVec2( a.x + rounding_bl, b.y - rounding_bl ), rounding_bl, 3, 6 );
	}
}

void ImDrawList::AddLine( const ImVec2& p1, const ImVec2& p2, ImU32 col, float thickness )
{
	if( ( col & IM_COL32_A_MASK ) == 0 )
	{
		return;
	}
	PathLineTo( p1 + ImVec2( 0.5f, 0.5f ) );
	PathLineTo( p2 + ImVec2( 0.5f, 0.5f ) );
	PathStroke( col, false, thickness );
}

// p_min = upper-left, p_max = lower-right
// Note we don't render 1 pixels sized rectangles properly.
void ImDrawList::AddRect( const ImVec2& p_min, const ImVec2& p_max, ImU32 col, float rounding, ImDrawCornerFlags rounding_corners, float thickness )
{
	if( ( col & IM_COL32_A_MASK ) == 0 )
	{
		return;
	}
	if( Flags & ImDrawListFlags_AntiAliasedLines )
	{
		PathRect( p_min + ImVec2( 0.50f, 0.50f ), p_max - ImVec2( 0.50f, 0.50f ), rounding, rounding_corners );
	}
	else
	{
		PathRect( p_min + ImVec2( 0.50f, 0.50f ), p_max - ImVec2( 0.49f, 0.49f ), rounding, rounding_corners );    // Better looking lower-right corner and rounded non-AA shapes.
	}
	PathStroke( col, true, thickness );
}

void ImDrawList::AddRectFilled( const ImVec2& p_min, const ImVec2& p_max, ImU32 col, float rounding, ImDrawCornerFlags rounding_corners )
{
	if( ( col & IM_COL32_A_MASK ) == 0 )
	{
		return;
	}
	if( rounding > 0.0f )
	{
		PathRect( p_min, p_max, rounding, rounding_corners );
		PathFillConvex( col );
	}
	else
	{
		PrimReserve( 6, 4 );
		PrimRect( p_min, p_max, col );
	}
}

// p_min = upper-left, p_max = lower-right
void ImDrawList::AddRectFilledMultiColor( const ImVec2& p_min, const ImVec2& p_max, ImU32 col_upr_left, ImU32 col_upr_right, ImU32 col_bot_right, ImU32 col_bot_left )
{
	if( ( ( col_upr_left | col_upr_right | col_bot_right | col_bot_left ) & IM_COL32_A_MASK ) == 0 )
	{
		return;
	}

	const ImVec2 uv = _Data->TexUvWhitePixel;
	PrimReserve( 6, 4 );
	PrimWriteIdx( ( ImDrawIdx )( _VtxCurrentIdx ) );
	PrimWriteIdx( ( ImDrawIdx )( _VtxCurrentIdx + 1 ) );
	PrimWriteIdx( ( ImDrawIdx )( _VtxCurrentIdx + 2 ) );
	PrimWriteIdx( ( ImDrawIdx )( _VtxCurrentIdx ) );
	PrimWriteIdx( ( ImDrawIdx )( _VtxCurrentIdx + 2 ) );
	PrimWriteIdx( ( ImDrawIdx )( _VtxCurrentIdx + 3 ) );
	PrimWriteVtx( p_min, uv, col_upr_left );
	PrimWriteVtx( ImVec2( p_max.x, p_min.y ), uv, col_upr_right );
	PrimWriteVtx( p_max, uv, col_bot_right );
	PrimWriteVtx( ImVec2( p_min.x, p_max.y ), uv, col_bot_left );
}

void ImDrawList::AddQuad( const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col, float thickness )
{
	if( ( col & IM_COL32_A_MASK ) == 0 )
	{
		return;
	}

	PathLineTo( p1 );
	PathLineTo( p2 );
	PathLineTo( p3 );
	PathLineTo( p4 );
	PathStroke( col, true, thickness );
}

void ImDrawList::AddQuadFilled( const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col )
{
	if( ( col & IM_COL32_A_MASK ) == 0 )
	{
		return;
	}

	PathLineTo( p1 );
	PathLineTo( p2 );
	PathLineTo( p3 );
	PathLineTo( p4 );
	PathFillConvex( col );
}

void ImDrawList::AddTriangle( const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col, float thickness )
{
	if( ( col & IM_COL32_A_MASK ) == 0 )
	{
		return;
	}

	PathLineTo( p1 );
	PathLineTo( p2 );
	PathLineTo( p3 );
	PathStroke( col, true, thickness );
}

void ImDrawList::AddTriangleFilled( const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col )
{
	if( ( col & IM_COL32_A_MASK ) == 0 )
	{
		return;
	}

	PathLineTo( p1 );
	PathLineTo( p2 );
	PathLineTo( p3 );
	PathFillConvex( col );
}

void ImDrawList::AddCircle( const ImVec2& center, float radius, ImU32 col, int num_segments, float thickness )
{
	if( ( col & IM_COL32_A_MASK ) == 0 || num_segments <= 2 )
	{
		return;
	}

	// Because we are filling a closed shape we remove 1 from the count of segments/points
	const float a_max = ( IM_PI * 2.0f ) * ( ( float )num_segments - 1.0f ) / ( float )num_segments;
	PathArcTo( center, radius - 0.5f, 0.0f, a_max, num_segments - 1 );
	PathStroke( col, true, thickness );
}

void ImDrawList::AddCircleFilled( const ImVec2& center, float radius, ImU32 col, int num_segments )
{
	if( ( col & IM_COL32_A_MASK ) == 0 || num_segments <= 2 )
	{
		return;
	}

	// Because we are filling a closed shape we remove 1 from the count of segments/points
	const float a_max = ( IM_PI * 2.0f ) * ( ( float )num_segments - 1.0f ) / ( float )num_segments;
	PathArcTo( center, radius, 0.0f, a_max, num_segments - 1 );
	PathFillConvex( col );
}

void ImDrawList::AddBezierCurve( const ImVec2& pos0, const ImVec2& cp0, const ImVec2& cp1, const ImVec2& pos1, ImU32 col, float thickness, int num_segments )
{
	if( ( col & IM_COL32_A_MASK ) == 0 )
	{
		return;
	}

	PathLineTo( pos0 );
	PathBezierCurveTo( cp0, cp1, pos1, num_segments );
	PathStroke( col, false, thickness );
}

void ImDrawList::AddText( const ImFont* font, float font_size, const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end, float wrap_width, const ImVec4* cpu_fine_clip_rect )
{
	if( ( col & IM_COL32_A_MASK ) == 0 )
	{
		return;
	}

	if( text_end == NULL )
	{
		text_end = text_begin + strlen( text_begin );
	}
	if( text_begin == text_end )
	{
		return;
	}

	// Pull default font/size from the shared ImDrawListSharedData instance
	if( font == NULL )
	{
		font = _Data->Font;
	}
	if( font_size == 0.0f )
	{
		font_size = _Data->FontSize;
	}

	IM_ASSERT( font->ContainerAtlas->TexID == _TextureIdStack.back() ); // Use high-level ImGui::PushFont() or low-level ImDrawList::PushTextureId() to change font.

	ImVec4 clip_rect = _ClipRectStack.back();
	if( cpu_fine_clip_rect )
	{
		clip_rect.x = ImMax( clip_rect.x, cpu_fine_clip_rect->x );
		clip_rect.y = ImMax( clip_rect.y, cpu_fine_clip_rect->y );
		clip_rect.z = ImMin( clip_rect.z, cpu_fine_clip_rect->z );
		clip_rect.w = ImMin( clip_rect.w, cpu_fine_clip_rect->w );
	}
	font->RenderText( this, font_size, pos, col, clip_rect, text_begin, text_end, wrap_width, cpu_fine_clip_rect != NULL );
}

void ImDrawList::AddText( const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end )
{
	AddText( NULL, 0.0f, pos, col, text_begin, text_end );
}

void ImDrawList::AddImage( ImTextureID user_texture_id, const ImVec2& p_min, const ImVec2& p_max, const ImVec2& uv_min, const ImVec2& uv_max, ImU32 col )
{
	if( ( col & IM_COL32_A_MASK ) == 0 )
	{
		return;
	}

	const bool push_texture_id = _TextureIdStack.empty() || user_texture_id != _TextureIdStack.back();
	if( push_texture_id )
	{
		PushTextureID( user_texture_id );
	}

	PrimReserve( 6, 4 );
	PrimRectUV( p_min, p_max, uv_min, uv_max, col );

	if( push_texture_id )
	{
		PopTextureID();
	}
}

void ImDrawList::AddImageQuad( ImTextureID user_texture_id, const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, const ImVec2& uv1, const ImVec2& uv2, const ImVec2& uv3, const ImVec2& uv4, ImU32 col )
{
	if( ( col & IM_COL32_A_MASK ) == 0 )
	{
		return;
	}

	const bool push_texture_id = _TextureIdStack.empty() || user_texture_id != _TextureIdStack.back();
	if( push_texture_id )
	{
		PushTextureID( user_texture_id );
	}

	PrimReserve( 6, 4 );
	PrimQuadUV( p1, p2, p3, p4, uv1, uv2, uv3, uv4, col );

	if( push_texture_id )
	{
		PopTextureID();
	}
}

void ImDrawList::AddImageRounded( ImTextureID user_texture_id, const ImVec2& p_min, const ImVec2& p_max, const ImVec2& uv_min, const ImVec2& uv_max, ImU32 col, float rounding, ImDrawCornerFlags rounding_corners )
{
	if( ( col & IM_COL32_A_MASK ) == 0 )
	{
		return;
	}

	if( rounding <= 0.0f || ( rounding_corners & ImDrawCornerFlags_All ) == 0 )
	{
		AddImage( user_texture_id, p_min, p_max, uv_min, uv_max, col );
		return;
	}

	const bool push_texture_id = _TextureIdStack.empty() || user_texture_id != _TextureIdStack.back();
	if( push_texture_id )
	{
		PushTextureID( user_texture_id );
	}

	int vert_start_idx = VtxBuffer.Size;
	PathRect( p_min, p_max, rounding, rounding_corners );
	PathFillConvex( col );
	int vert_end_idx = VtxBuffer.Size;
	ImGui::ShadeVertsLinearUV( this, vert_start_idx, vert_end_idx, p_min, p_max, uv_min, uv_max, true );

	if( push_texture_id )
	{
		PopTextureID();
	}
}


//-----------------------------------------------------------------------------
// ImDrawListSplitter
//-----------------------------------------------------------------------------
// FIXME: This may be a little confusing, trying to be a little too low-level/optimal instead of just doing vector swap..
//-----------------------------------------------------------------------------

void ImDrawListSplitter::ClearFreeMemory()
{
	for( int i = 0; i < _Channels.Size; i++ )
	{
		if( i == _Current )
		{
			memset( &_Channels[i], 0, sizeof( _Channels[i] ) );    // Current channel is a copy of CmdBuffer/IdxBuffer, don't destruct again
		}
		_Channels[i]._CmdBuffer.clear();
		_Channels[i]._IdxBuffer.clear();
	}
	_Current = 0;
	_Count = 1;
	_Channels.clear();
}

void ImDrawListSplitter::Split( ImDrawList* draw_list, int channels_count )
{
	IM_ASSERT( _Current == 0 && _Count <= 1 );
	int old_channels_count = _Channels.Size;
	if( old_channels_count < channels_count )
	{
		_Channels.resize( channels_count );
	}
	_Count = channels_count;

	// Channels[] (24/32 bytes each) hold storage that we'll swap with draw_list->_CmdBuffer/_IdxBuffer
	// The content of Channels[0] at this point doesn't matter. We clear it to make state tidy in a debugger but we don't strictly need to.
	// When we switch to the next channel, we'll copy draw_list->_CmdBuffer/_IdxBuffer into Channels[0] and then Channels[1] into draw_list->CmdBuffer/_IdxBuffer
	memset( &_Channels[0], 0, sizeof( ImDrawChannel ) );
	for( int i = 1; i < channels_count; i++ )
	{
		if( i >= old_channels_count )
		{
			IM_PLACEMENT_NEW( &_Channels[i] ) ImDrawChannel();
		}
		else
		{
			_Channels[i]._CmdBuffer.resize( 0 );
			_Channels[i]._IdxBuffer.resize( 0 );
		}
		if( _Channels[i]._CmdBuffer.Size == 0 )
		{
			ImDrawCmd draw_cmd;
			draw_cmd.ClipRect = draw_list->_ClipRectStack.back();
			draw_cmd.TextureId = draw_list->_TextureIdStack.back();
			_Channels[i]._CmdBuffer.push_back( draw_cmd );
		}
	}
}

static inline bool CanMergeDrawCommands( ImDrawCmd* a, ImDrawCmd* b )
{
	return memcmp( &a->ClipRect, &b->ClipRect, sizeof( a->ClipRect ) ) == 0 && a->TextureId == b->TextureId && a->VtxOffset == b->VtxOffset && !a->UserCallback && !b->UserCallback;
}

void ImDrawListSplitter::Merge( ImDrawList* draw_list )
{
	// Note that we never use or rely on channels.Size because it is merely a buffer that we never shrink back to 0 to keep all sub-buffers ready for use.
	if( _Count <= 1 )
	{
		return;
	}

	SetCurrentChannel( draw_list, 0 );
	if( draw_list->CmdBuffer.Size != 0 && draw_list->CmdBuffer.back().ElemCount == 0 )
	{
		draw_list->CmdBuffer.pop_back();
	}

	// Calculate our final buffer sizes. Also fix the incorrect IdxOffset values in each command.
	int new_cmd_buffer_count = 0;
	int new_idx_buffer_count = 0;
	ImDrawCmd* last_cmd = ( _Count > 0 && draw_list->CmdBuffer.Size > 0 ) ? &draw_list->CmdBuffer.back() : NULL;
	int idx_offset = last_cmd ? last_cmd->IdxOffset + last_cmd->ElemCount : 0;
	for( int i = 1; i < _Count; i++ )
	{
		ImDrawChannel& ch = _Channels[i];
		if( ch._CmdBuffer.Size > 0 && ch._CmdBuffer.back().ElemCount == 0 )
		{
			ch._CmdBuffer.pop_back();
		}
		if( ch._CmdBuffer.Size > 0 && last_cmd != NULL && CanMergeDrawCommands( last_cmd, &ch._CmdBuffer[0] ) )
		{
			// Merge previous channel last draw command with current channel first draw command if matching.
			last_cmd->ElemCount += ch._CmdBuffer[0].ElemCount;
			idx_offset += ch._CmdBuffer[0].ElemCount;
			ch._CmdBuffer.erase( ch._CmdBuffer.Data );
		}
		if( ch._CmdBuffer.Size > 0 )
		{
			last_cmd = &ch._CmdBuffer.back();
		}
		new_cmd_buffer_count += ch._CmdBuffer.Size;
		new_idx_buffer_count += ch._IdxBuffer.Size;
		for( int cmd_n = 0; cmd_n < ch._CmdBuffer.Size; cmd_n++ )
		{
			ch._CmdBuffer.Data[cmd_n].IdxOffset = idx_offset;
			idx_offset += ch._CmdBuffer.Data[cmd_n].ElemCount;
		}
	}
	draw_list->CmdBuffer.resize( draw_list->CmdBuffer.Size + new_cmd_buffer_count );
	draw_list->IdxBuffer.resize( draw_list->IdxBuffer.Size + new_idx_buffer_count );

	// Write commands and indices in order (they are fairly small structures, we don't copy vertices only indices)
	ImDrawCmd* cmd_write = draw_list->CmdBuffer.Data + draw_list->CmdBuffer.Size - new_cmd_buffer_count;
	ImDrawIdx* idx_write = draw_list->IdxBuffer.Data + draw_list->IdxBuffer.Size - new_idx_buffer_count;
	for( int i = 1; i < _Count; i++ )
	{
		ImDrawChannel& ch = _Channels[i];
		if( int sz = ch._CmdBuffer.Size )
		{
			memcpy( cmd_write, ch._CmdBuffer.Data, sz * sizeof( ImDrawCmd ) );
			cmd_write += sz;
		}
		if( int sz = ch._IdxBuffer.Size )
		{
			memcpy( idx_write, ch._IdxBuffer.Data, sz * sizeof( ImDrawIdx ) );
			idx_write += sz;
		}
	}
	draw_list->_IdxWritePtr = idx_write;
	draw_list->UpdateClipRect(); // We call this instead of AddDrawCmd(), so that empty channels won't produce an extra draw call.
	draw_list->UpdateTextureID();
	_Count = 1;
}

void ImDrawListSplitter::SetCurrentChannel( ImDrawList* draw_list, int idx )
{
	IM_ASSERT( idx >= 0 && idx < _Count );
	if( _Current == idx )
	{
		return;
	}
	// Overwrite ImVector (12/16 bytes), four times. This is merely a silly optimization instead of doing .swap()
	memcpy( &_Channels.Data[_Current]._CmdBuffer, &draw_list->CmdBuffer, sizeof( draw_list->CmdBuffer ) );
	memcpy( &_Channels.Data[_Current]._IdxBuffer, &draw_list->IdxBuffer, sizeof( draw_list->IdxBuffer ) );
	_Current = idx;
	memcpy( &draw_list->CmdBuffer, &_Channels.Data[idx]._CmdBuffer, sizeof( draw_list->CmdBuffer ) );
	memcpy( &draw_list->IdxBuffer, &_Channels.Data[idx]._IdxBuffer, sizeof( draw_list->IdxBuffer ) );
	draw_list->_IdxWritePtr = draw_list->IdxBuffer.Data + draw_list->IdxBuffer.Size;
}

//-----------------------------------------------------------------------------
// [SECTION] ImDrawData
//-----------------------------------------------------------------------------

// For backward compatibility: convert all buffers from indexed to de-indexed, in case you cannot render indexed. Note: this is slow and most likely a waste of resources. Always prefer indexed rendering!
void ImDrawData::DeIndexAllBuffers()
{
	ImVector<ImDrawVert> new_vtx_buffer;
	TotalVtxCount = TotalIdxCount = 0;
	for( int i = 0; i < CmdListsCount; i++ )
	{
		ImDrawList* cmd_list = CmdLists[i];
		if( cmd_list->IdxBuffer.empty() )
		{
			continue;
		}
		new_vtx_buffer.resize( cmd_list->IdxBuffer.Size );
		for( int j = 0; j < cmd_list->IdxBuffer.Size; j++ )
		{
			new_vtx_buffer[j] = cmd_list->VtxBuffer[cmd_list->IdxBuffer[j]];
		}
		cmd_list->VtxBuffer.swap( new_vtx_buffer );
		cmd_list->IdxBuffer.resize( 0 );
		TotalVtxCount += cmd_list->VtxBuffer.Size;
	}
}

// Helper to scale the ClipRect field of each ImDrawCmd.
// Use if your final output buffer is at a different scale than draw_data->DisplaySize,
// or if there is a difference between your window resolution and framebuffer resolution.
void ImDrawData::ScaleClipRects( const ImVec2& fb_scale )
{
	for( int i = 0; i < CmdListsCount; i++ )
	{
		ImDrawList* cmd_list = CmdLists[i];
		for( int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++ )
		{
			ImDrawCmd* cmd = &cmd_list->CmdBuffer[cmd_i];
			cmd->ClipRect = ImVec4( cmd->ClipRect.x * fb_scale.x, cmd->ClipRect.y * fb_scale.y, cmd->ClipRect.z * fb_scale.x, cmd->ClipRect.w * fb_scale.y );
		}
	}
}

//-----------------------------------------------------------------------------
// [SECTION] Helpers ShadeVertsXXX functions
//-----------------------------------------------------------------------------

// Generic linear color gradient, write to RGB fields, leave A untouched.
void ImGui::ShadeVertsLinearColorGradientKeepAlpha( ImDrawList* draw_list, int vert_start_idx, int vert_end_idx, ImVec2 gradient_p0, ImVec2 gradient_p1, ImU32 col0, ImU32 col1 )
{
	ImVec2 gradient_extent = gradient_p1 - gradient_p0;
	float gradient_inv_length2 = 1.0f / ImLengthSqr( gradient_extent );
	ImDrawVert* vert_start = draw_list->VtxBuffer.Data + vert_start_idx;
	ImDrawVert* vert_end = draw_list->VtxBuffer.Data + vert_end_idx;
	for( ImDrawVert* vert = vert_start; vert < vert_end; vert++ )
	{
		float d = ImDot( vert->pos - gradient_p0, gradient_extent );
		float t = ImClamp( d * gradient_inv_length2, 0.0f, 1.0f );
		int r = ImLerp( ( int )( col0 >> IM_COL32_R_SHIFT ) & 0xFF, ( int )( col1 >> IM_COL32_R_SHIFT ) & 0xFF, t );
		int g = ImLerp( ( int )( col0 >> IM_COL32_G_SHIFT ) & 0xFF, ( int )( col1 >> IM_COL32_G_SHIFT ) & 0xFF, t );
		int b = ImLerp( ( int )( col0 >> IM_COL32_B_SHIFT ) & 0xFF, ( int )( col1 >> IM_COL32_B_SHIFT ) & 0xFF, t );
		vert->col = ( r << IM_COL32_R_SHIFT ) | ( g << IM_COL32_G_SHIFT ) | ( b << IM_COL32_B_SHIFT ) | ( vert->col & IM_COL32_A_MASK );
	}
}

// Distribute UV over (a, b) rectangle
void ImGui::ShadeVertsLinearUV( ImDrawList* draw_list, int vert_start_idx, int vert_end_idx, const ImVec2& a, const ImVec2& b, const ImVec2& uv_a, const ImVec2& uv_b, bool clamp )
{
	const ImVec2 size = b - a;
	const ImVec2 uv_size = uv_b - uv_a;
	const ImVec2 scale = ImVec2(
							 size.x != 0.0f ? ( uv_size.x / size.x ) : 0.0f,
							 size.y != 0.0f ? ( uv_size.y / size.y ) : 0.0f );

	ImDrawVert* vert_start = draw_list->VtxBuffer.Data + vert_start_idx;
	ImDrawVert* vert_end = draw_list->VtxBuffer.Data + vert_end_idx;
	if( clamp )
	{
		const ImVec2 min = ImMin( uv_a, uv_b );
		const ImVec2 max = ImMax( uv_a, uv_b );
		for( ImDrawVert* vertex = vert_start; vertex < vert_end; ++vertex )
		{
			vertex->uv = ImClamp( uv_a + ImMul( ImVec2( vertex->pos.x, vertex->pos.y ) - a, scale ), min, max );
		}
	}
	else
	{
		for( ImDrawVert* vertex = vert_start; vertex < vert_end; ++vertex )
		{
			vertex->uv = uv_a + ImMul( ImVec2( vertex->pos.x, vertex->pos.y ) - a, scale );
		}
	}
}

//-----------------------------------------------------------------------------
// [SECTION] ImFontConfig
//-----------------------------------------------------------------------------

ImFontConfig::ImFontConfig()
{
	FontData = NULL;
	FontDataSize = 0;
	FontDataOwnedByAtlas = true;
	FontNo = 0;
	SizePixels = 0.0f;
	OversampleH = 3; // FIXME: 2 may be a better default?
	OversampleV = 1;
	PixelSnapH = false;
	GlyphExtraSpacing = ImVec2( 0.0f, 0.0f );
	GlyphOffset = ImVec2( 0.0f, 0.0f );
	GlyphRanges = NULL;
	GlyphMinAdvanceX = 0.0f;
	GlyphMaxAdvanceX = FLT_MAX;
	MergeMode = false;
	RasterizerFlags = 0x00;
	RasterizerMultiply = 1.0f;
	EllipsisChar = ( ImWchar ) - 1;
	memset( Name, 0, sizeof( Name ) );
	DstFont = NULL;
}

//-----------------------------------------------------------------------------
// [SECTION] ImFontAtlas
//-----------------------------------------------------------------------------

// A work of art lies ahead! (. = white layer, X = black layer, others are blank)
// The white texels on the top left are the ones we'll use everywhere in Dear ImGui to render filled shapes.
const int FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF = 108;
const int FONT_ATLAS_DEFAULT_TEX_DATA_H      = 27;
const unsigned int FONT_ATLAS_DEFAULT_TEX_DATA_ID = 0x80000000;
static const char FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS[FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF * FONT_ATLAS_DEFAULT_TEX_DATA_H + 1] =
{
	"..-         -XXXXXXX-    X    -           X           -XXXXXXX          -          XXXXXXX-     XX          "
	"..-         -X.....X-   X.X   -          X.X          -X.....X          -          X.....X-    X..X         "
	"---         -XXX.XXX-  X...X  -         X...X         -X....X           -           X....X-    X..X         "
	"X           -  X.X  - X.....X -        X.....X        -X...X            -            X...X-    X..X         "
	"XX          -  X.X  -X.......X-       X.......X       -X..X.X           -           X.X..X-    X..X         "
	"X.X         -  X.X  -XXXX.XXXX-       XXXX.XXXX       -X.X X.X          -          X.X X.X-    X..XXX       "
	"X..X        -  X.X  -   X.X   -          X.X          -XX   X.X         -         X.X   XX-    X..X..XXX    "
	"X...X       -  X.X  -   X.X   -    XX    X.X    XX    -      X.X        -        X.X      -    X..X..X..XX  "
	"X....X      -  X.X  -   X.X   -   X.X    X.X    X.X   -       X.X       -       X.X       -    X..X..X..X.X "
	"X.....X     -  X.X  -   X.X   -  X..X    X.X    X..X  -        X.X      -      X.X        -XXX X..X..X..X..X"
	"X......X    -  X.X  -   X.X   - X...XXXXXX.XXXXXX...X -         X.X   XX-XX   X.X         -X..XX........X..X"
	"X.......X   -  X.X  -   X.X   -X.....................X-          X.X X.X-X.X X.X          -X...X...........X"
	"X........X  -  X.X  -   X.X   - X...XXXXXX.XXXXXX...X -           X.X..X-X..X.X           - X..............X"
	"X.........X -XXX.XXX-   X.X   -  X..X    X.X    X..X  -            X...X-X...X            -  X.............X"
	"X..........X-X.....X-   X.X   -   X.X    X.X    X.X   -           X....X-X....X           -  X.............X"
	"X......XXXXX-XXXXXXX-   X.X   -    XX    X.X    XX    -          X.....X-X.....X          -   X............X"
	"X...X..X    ---------   X.X   -          X.X          -          XXXXXXX-XXXXXXX          -   X...........X "
	"X..X X..X   -       -XXXX.XXXX-       XXXX.XXXX       -------------------------------------    X..........X "
	"X.X  X..X   -       -X.......X-       X.......X       -    XX           XX    -           -    X..........X "
	"XX    X..X  -       - X.....X -        X.....X        -   X.X           X.X   -           -     X........X  "
	"      X..X          -  X...X  -         X...X         -  X..X           X..X  -           -     X........X  "
	"       XX           -   X.X   -          X.X          - X...XXXXXXXXXXXXX...X -           -     XXXXXXXXXX  "
	"------------        -    X    -           X           -X.....................X-           ------------------"
	"                    ----------------------------------- X...XXXXXXXXXXXXX...X -                             "
	"                                                      -  X..X           X..X  -                             "
	"                                                      -   X.X           X.X   -                             "
	"                                                      -    XX           XX    -                             "
};

static const ImVec2 FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[ImGuiMouseCursor_COUNT][3] =
{
	// Pos ........ Size ......... Offset ......
	{ ImVec2( 0, 3 ), ImVec2( 12, 19 ), ImVec2( 0, 0 ) }, // ImGuiMouseCursor_Arrow
	{ ImVec2( 13, 0 ), ImVec2( 7, 16 ), ImVec2( 1, 8 ) }, // ImGuiMouseCursor_TextInput
	{ ImVec2( 31, 0 ), ImVec2( 23, 23 ), ImVec2( 11, 11 ) }, // ImGuiMouseCursor_ResizeAll
	{ ImVec2( 21, 0 ), ImVec2( 9, 23 ), ImVec2( 4, 11 ) }, // ImGuiMouseCursor_ResizeNS
	{ ImVec2( 55, 18 ), ImVec2( 23, 9 ), ImVec2( 11, 4 ) }, // ImGuiMouseCursor_ResizeEW
	{ ImVec2( 73, 0 ), ImVec2( 17, 17 ), ImVec2( 8, 8 ) }, // ImGuiMouseCursor_ResizeNESW
	{ ImVec2( 55, 0 ), ImVec2( 17, 17 ), ImVec2( 8, 8 ) }, // ImGuiMouseCursor_ResizeNWSE
	{ ImVec2( 91, 0 ), ImVec2( 17, 22 ), ImVec2( 5, 0 ) }, // ImGuiMouseCursor_Hand
};

ImFontAtlas::ImFontAtlas()
{
	Locked = false;
	Flags = ImFontAtlasFlags_None;
	TexID = ( ImTextureID )NULL;
	TexDesiredWidth = 0;
	TexGlyphPadding = 1;

	TexPixelsAlpha8 = NULL;
	TexPixelsRGBA32 = NULL;
	TexWidth = TexHeight = 0;
	TexUvScale = ImVec2( 0.0f, 0.0f );
	TexUvWhitePixel = ImVec2( 0.0f, 0.0f );
	for( int n = 0; n < IM_ARRAYSIZE( CustomRectIds ); n++ )
	{
		CustomRectIds[n] = -1;
	}
}

ImFontAtlas::~ImFontAtlas()
{
	IM_ASSERT( !Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!" );
	Clear();
}

void    ImFontAtlas::ClearInputData()
{
	IM_ASSERT( !Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!" );
	for( int i = 0; i < ConfigData.Size; i++ )
		if( ConfigData[i].FontData && ConfigData[i].FontDataOwnedByAtlas )
		{
			IM_FREE( ConfigData[i].FontData );
			ConfigData[i].FontData = NULL;
		}

	// When clearing this we lose access to the font name and other information used to build the font.
	for( int i = 0; i < Fonts.Size; i++ )
		if( Fonts[i]->ConfigData >= ConfigData.Data && Fonts[i]->ConfigData < ConfigData.Data + ConfigData.Size )
		{
			Fonts[i]->ConfigData = NULL;
			Fonts[i]->ConfigDataCount = 0;
		}
	ConfigData.clear();
	CustomRects.clear();
	for( int n = 0; n < IM_ARRAYSIZE( CustomRectIds ); n++ )
	{
		CustomRectIds[n] = -1;
	}
}

void    ImFontAtlas::ClearTexData()
{
	IM_ASSERT( !Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!" );
	if( TexPixelsAlpha8 )
	{
		IM_FREE( TexPixelsAlpha8 );
	}
	if( TexPixelsRGBA32 )
	{
		IM_FREE( TexPixelsRGBA32 );
	}
	TexPixelsAlpha8 = NULL;
	TexPixelsRGBA32 = NULL;
}

void    ImFontAtlas::ClearFonts()
{
	IM_ASSERT( !Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!" );
	for( int i = 0; i < Fonts.Size; i++ )
	{
		IM_DELETE( Fonts[i] );
	}
	Fonts.clear();
}

void    ImFontAtlas::Clear()
{
	ClearInputData();
	ClearTexData();
	ClearFonts();
}

void    ImFontAtlas::GetTexDataAsAlpha8( unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel )
{
	// Build atlas on demand
	if( TexPixelsAlpha8 == NULL )
	{
		if( ConfigData.empty() )
		{
			AddFontDefault();
		}
		Build();
	}

	*out_pixels = TexPixelsAlpha8;
	if( out_width )
	{
		*out_width = TexWidth;
	}
	if( out_height )
	{
		*out_height = TexHeight;
	}
	if( out_bytes_per_pixel )
	{
		*out_bytes_per_pixel = 1;
	}
}

void    ImFontAtlas::GetTexDataAsRGBA32( unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel )
{
	// Convert to RGBA32 format on demand
	// Although it is likely to be the most commonly used format, our font rendering is 1 channel / 8 bpp
	if( !TexPixelsRGBA32 )
	{
		unsigned char* pixels = NULL;
		GetTexDataAsAlpha8( &pixels, NULL, NULL );
		if( pixels )
		{
			TexPixelsRGBA32 = ( unsigned int* )IM_ALLOC( ( size_t )TexWidth * ( size_t )TexHeight * 4 );
			const unsigned char* src = pixels;
			unsigned int* dst = TexPixelsRGBA32;
			for( int n = TexWidth * TexHeight; n > 0; n-- )
			{
				*dst++ = IM_COL32( 255, 255, 255, ( unsigned int )( *src++ ) );
			}
		}
	}

	*out_pixels = ( unsigned char* )TexPixelsRGBA32;
	if( out_width )
	{
		*out_width = TexWidth;
	}
	if( out_height )
	{
		*out_height = TexHeight;
	}
	if( out_bytes_per_pixel )
	{
		*out_bytes_per_pixel = 4;
	}
}

ImFont* ImFontAtlas::AddFont( const ImFontConfig* font_cfg )
{
	IM_ASSERT( !Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!" );
	IM_ASSERT( font_cfg->FontData != NULL && font_cfg->FontDataSize > 0 );
	IM_ASSERT( font_cfg->SizePixels > 0.0f );

	// Create new font
	if( !font_cfg->MergeMode )
	{
		Fonts.push_back( IM_NEW( ImFont ) );
	}
	else
	{
		IM_ASSERT( !Fonts.empty() && "Cannot use MergeMode for the first font" );    // When using MergeMode make sure that a font has already been added before. You can use ImGui::GetIO().Fonts->AddFontDefault() to add the default imgui font.
	}

	ConfigData.push_back( *font_cfg );
	ImFontConfig& new_font_cfg = ConfigData.back();
	if( new_font_cfg.DstFont == NULL )
	{
		new_font_cfg.DstFont = Fonts.back();
	}
	if( !new_font_cfg.FontDataOwnedByAtlas )
	{
		new_font_cfg.FontData = IM_ALLOC( new_font_cfg.FontDataSize );
		new_font_cfg.FontDataOwnedByAtlas = true;
		memcpy( new_font_cfg.FontData, font_cfg->FontData, ( size_t )new_font_cfg.FontDataSize );
	}

	if( new_font_cfg.DstFont->EllipsisChar == ( ImWchar ) - 1 )
	{
		new_font_cfg.DstFont->EllipsisChar = font_cfg->EllipsisChar;
	}

	// Invalidate texture
	ClearTexData();
	return new_font_cfg.DstFont;
}

// Default font TTF is compressed with stb_compress then base85 encoded (see misc/fonts/binary_to_compressed_c.cpp for encoder)
static unsigned int stb_decompress_length( const unsigned char* input );
static unsigned int stb_decompress( unsigned char* output, const unsigned char* input, unsigned int length );
static const char*  GetDefaultCompressedFontDataTTFBase85();
static unsigned int Decode85Byte( char c )
{
	return c >= '\\' ? c - 36 : c - 35;
}
static void         Decode85( const unsigned char* src, unsigned char* dst )
{
	while( *src )
	{
		unsigned int tmp = Decode85Byte( src[0] ) + 85 * ( Decode85Byte( src[1] ) + 85 * ( Decode85Byte( src[2] ) + 85 * ( Decode85Byte( src[3] ) + 85 * Decode85Byte( src[4] ) ) ) );
		dst[0] = ( ( tmp >> 0 ) & 0xFF );
		dst[1] = ( ( tmp >> 8 ) & 0xFF );
		dst[2] = ( ( tmp >> 16 ) & 0xFF );
		dst[3] = ( ( tmp >> 24 ) & 0xFF ); // We can't assume little-endianness.
		src += 5;
		dst += 4;
	}
}

// Load embedded ProggyClean.ttf at size 13, disable oversampling
ImFont* ImFontAtlas::AddFontDefault( const ImFontConfig* font_cfg_template )
{
	ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
	if( !font_cfg_template )
	{
		font_cfg.OversampleH = font_cfg.OversampleV = 1;
		font_cfg.PixelSnapH = true;
	}
	if( font_cfg.SizePixels <= 0.0f )
	{
		font_cfg.SizePixels = 13.0f * 1.0f;
	}
	if( font_cfg.Name[0] == '\0' )
	{
		ImFormatString( font_cfg.Name, IM_ARRAYSIZE( font_cfg.Name ), "ProggyClean.ttf, %dpx", ( int )font_cfg.SizePixels );
	}
	font_cfg.EllipsisChar = ( ImWchar )0x0085;

	const char* ttf_compressed_base85 = GetDefaultCompressedFontDataTTFBase85();
	const ImWchar* glyph_ranges = font_cfg.GlyphRanges != NULL ? font_cfg.GlyphRanges : GetGlyphRangesDefault();
	ImFont* font = AddFontFromMemoryCompressedBase85TTF( ttf_compressed_base85, font_cfg.SizePixels, &font_cfg, glyph_ranges );
	font->DisplayOffset.y = 1.0f;
	return font;
}

ImFont* ImFontAtlas::AddFontFromFileTTF( const char* filename, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges )
{
	IM_ASSERT( !Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!" );
	size_t data_size = 0;
	void* data = ImFileLoadToMemory( filename, "rb", &data_size, 0 );
	if( !data )
	{
		IM_ASSERT( 0 ); // Could not load file.
		return NULL;
	}
	ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
	if( font_cfg.Name[0] == '\0' )
	{
		// Store a short copy of filename into into the font name for convenience
		const char* p;
		for( p = filename + strlen( filename ); p > filename && p[-1] != '/' && p[-1] != '\\'; p-- ) {}
		ImFormatString( font_cfg.Name, IM_ARRAYSIZE( font_cfg.Name ), "%s, %.0fpx", p, size_pixels );
	}
	return AddFontFromMemoryTTF( data, ( int )data_size, size_pixels, &font_cfg, glyph_ranges );
}

// NB: Transfer ownership of 'ttf_data' to ImFontAtlas, unless font_cfg_template->FontDataOwnedByAtlas == false. Owned TTF buffer will be deleted after Build().
ImFont* ImFontAtlas::AddFontFromMemoryTTF( void* ttf_data, int ttf_size, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges )
{
	IM_ASSERT( !Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!" );
	ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
	IM_ASSERT( font_cfg.FontData == NULL );
	font_cfg.FontData = ttf_data;
	font_cfg.FontDataSize = ttf_size;
	font_cfg.SizePixels = size_pixels;
	if( glyph_ranges )
	{
		font_cfg.GlyphRanges = glyph_ranges;
	}
	return AddFont( &font_cfg );
}

ImFont* ImFontAtlas::AddFontFromMemoryCompressedTTF( const void* compressed_ttf_data, int compressed_ttf_size, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges )
{
	const unsigned int buf_decompressed_size = stb_decompress_length( ( const unsigned char* )compressed_ttf_data );
	unsigned char* buf_decompressed_data = ( unsigned char* )IM_ALLOC( buf_decompressed_size );
	stb_decompress( buf_decompressed_data, ( const unsigned char* )compressed_ttf_data, ( unsigned int )compressed_ttf_size );

	ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
	IM_ASSERT( font_cfg.FontData == NULL );
	font_cfg.FontDataOwnedByAtlas = true;
	return AddFontFromMemoryTTF( buf_decompressed_data, ( int )buf_decompressed_size, size_pixels, &font_cfg, glyph_ranges );
}

ImFont* ImFontAtlas::AddFontFromMemoryCompressedBase85TTF( const char* compressed_ttf_data_base85, float size_pixels, const ImFontConfig* font_cfg, const ImWchar* glyph_ranges )
{
	int compressed_ttf_size = ( ( ( int )strlen( compressed_ttf_data_base85 ) + 4 ) / 5 ) * 4;
	void* compressed_ttf = IM_ALLOC( ( size_t )compressed_ttf_size );
	Decode85( ( const unsigned char* )compressed_ttf_data_base85, ( unsigned char* )compressed_ttf );
	ImFont* font = AddFontFromMemoryCompressedTTF( compressed_ttf, compressed_ttf_size, size_pixels, font_cfg, glyph_ranges );
	IM_FREE( compressed_ttf );
	return font;
}

int ImFontAtlas::AddCustomRectRegular( unsigned int id, int width, int height )
{
	IM_ASSERT( id >= 0x10000 );
	IM_ASSERT( width > 0 && width <= 0xFFFF );
	IM_ASSERT( height > 0 && height <= 0xFFFF );
	ImFontAtlasCustomRect r;
	r.ID = id;
	r.Width = ( unsigned short )width;
	r.Height = ( unsigned short )height;
	CustomRects.push_back( r );
	return CustomRects.Size - 1; // Return index
}

int ImFontAtlas::AddCustomRectFontGlyph( ImFont* font, ImWchar id, int width, int height, float advance_x, const ImVec2& offset )
{
	IM_ASSERT( font != NULL );
	IM_ASSERT( width > 0 && width <= 0xFFFF );
	IM_ASSERT( height > 0 && height <= 0xFFFF );
	ImFontAtlasCustomRect r;
	r.ID = id;
	r.Width = ( unsigned short )width;
	r.Height = ( unsigned short )height;
	r.GlyphAdvanceX = advance_x;
	r.GlyphOffset = offset;
	r.Font = font;
	CustomRects.push_back( r );
	return CustomRects.Size - 1; // Return index
}

void ImFontAtlas::CalcCustomRectUV( const ImFontAtlasCustomRect* rect, ImVec2* out_uv_min, ImVec2* out_uv_max )
{
	IM_ASSERT( TexWidth > 0 && TexHeight > 0 ); // Font atlas needs to be built before we can calculate UV coordinates
	IM_ASSERT( rect->IsPacked() );              // Make sure the rectangle has been packed
	*out_uv_min = ImVec2( ( float )rect->X * TexUvScale.x, ( float )rect->Y * TexUvScale.y );
	*out_uv_max = ImVec2( ( float )( rect->X + rect->Width ) * TexUvScale.x, ( float )( rect->Y + rect->Height ) * TexUvScale.y );
}

bool ImFontAtlas::GetMouseCursorTexData( ImGuiMouseCursor cursor_type, ImVec2* out_offset, ImVec2* out_size, ImVec2 out_uv_border[2], ImVec2 out_uv_fill[2] )
{
	if( cursor_type <= ImGuiMouseCursor_None || cursor_type >= ImGuiMouseCursor_COUNT )
	{
		return false;
	}
	if( Flags & ImFontAtlasFlags_NoMouseCursors )
	{
		return false;
	}

	IM_ASSERT( CustomRectIds[0] != -1 );
	ImFontAtlasCustomRect& r = CustomRects[CustomRectIds[0]];
	IM_ASSERT( r.ID == FONT_ATLAS_DEFAULT_TEX_DATA_ID );
	ImVec2 pos = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][0] + ImVec2( ( float )r.X, ( float )r.Y );
	ImVec2 size = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][1];
	*out_size = size;
	*out_offset = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][2];
	out_uv_border[0] = ( pos ) * TexUvScale;
	out_uv_border[1] = ( pos + size ) * TexUvScale;
	pos.x += FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF + 1;
	out_uv_fill[0] = ( pos ) * TexUvScale;
	out_uv_fill[1] = ( pos + size ) * TexUvScale;
	return true;
}

bool    ImFontAtlas::Build()
{
	IM_ASSERT( !Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!" );
	return ImFontAtlasBuildWithStbTruetype( this );
}

void    ImFontAtlasBuildMultiplyCalcLookupTable( unsigned char out_table[256], float in_brighten_factor )
{
	for( unsigned int i = 0; i < 256; i++ )
	{
		unsigned int value = ( unsigned int )( i * in_brighten_factor );
		out_table[i] = value > 255 ? 255 : ( value & 0xFF );
	}
}

void    ImFontAtlasBuildMultiplyRectAlpha8( const unsigned char table[256], unsigned char* pixels, int x, int y, int w, int h, int stride )
{
	unsigned char* data = pixels + x + y * stride;
	for( int j = h; j > 0; j--, data += stride )
		for( int i = 0; i < w; i++ )
		{
			data[i] = table[data[i]];
		}
}

// Temporary data for one source font (multiple source fonts can be merged into one destination ImFont)
// (C++03 doesn't allow instancing ImVector<> with function-local types so we declare the type here.)
struct ImFontBuildSrcData
{
	stbtt_fontinfo      FontInfo;
	stbtt_pack_range    PackRange;          // Hold the list of codepoints to pack (essentially points to Codepoints.Data)
	stbrp_rect*         Rects;              // Rectangle to pack. We first fill in their size and the packer will give us their position.
	stbtt_packedchar*   PackedChars;        // Output glyphs
	const ImWchar*      SrcRanges;          // Ranges as requested by user (user is allowed to request too much, e.g. 0x0020..0xFFFF)
	int                 DstIndex;           // Index into atlas->Fonts[] and dst_tmp_array[]
	int                 GlyphsHighest;      // Highest requested codepoint
	int                 GlyphsCount;        // Glyph count (excluding missing glyphs and glyphs already set by an earlier source font)
	ImBoolVector        GlyphsSet;          // Glyph bit map (random access, 1-bit per codepoint. This will be a maximum of 8KB)
	ImVector<int>       GlyphsList;         // Glyph codepoints list (flattened version of GlyphsMap)
};

// Temporary data for one destination ImFont* (multiple source fonts can be merged into one destination ImFont)
struct ImFontBuildDstData
{
	int                 SrcCount;           // Number of source fonts targeting this destination font.
	int                 GlyphsHighest;
	int                 GlyphsCount;
	ImBoolVector        GlyphsSet;          // This is used to resolve collision when multiple sources are merged into a same destination font.
};

static void UnpackBoolVectorToFlatIndexList( const ImBoolVector* in, ImVector<int>* out )
{
	IM_ASSERT( sizeof( in->Storage.Data[0] ) == sizeof( int ) );
	const int* it_begin = in->Storage.begin();
	const int* it_end = in->Storage.end();
	for( const int* it = it_begin; it < it_end; it++ )
		if( int entries_32 = *it )
			for( int bit_n = 0; bit_n < 32; bit_n++ )
				if( entries_32 & ( 1u << bit_n ) )
				{
					out->push_back( ( int )( ( it - it_begin ) << 5 ) + bit_n );
				}
}

bool    ImFontAtlasBuildWithStbTruetype( ImFontAtlas* atlas )
{
	IM_ASSERT( atlas->ConfigData.Size > 0 );

	ImFontAtlasBuildRegisterDefaultCustomRects( atlas );

	// Clear atlas
	atlas->TexID = ( ImTextureID )NULL;
	atlas->TexWidth = atlas->TexHeight = 0;
	atlas->TexUvScale = ImVec2( 0.0f, 0.0f );
	atlas->TexUvWhitePixel = ImVec2( 0.0f, 0.0f );
	atlas->ClearTexData();

	// Temporary storage for building
	ImVector<ImFontBuildSrcData> src_tmp_array;
	ImVector<ImFontBuildDstData> dst_tmp_array;
	src_tmp_array.resize( atlas->ConfigData.Size );
	dst_tmp_array.resize( atlas->Fonts.Size );
	memset( src_tmp_array.Data, 0, ( size_t )src_tmp_array.size_in_bytes() );
	memset( dst_tmp_array.Data, 0, ( size_t )dst_tmp_array.size_in_bytes() );

	// 1. Initialize font loading structure, check font data validity
	for( int src_i = 0; src_i < atlas->ConfigData.Size; src_i++ )
	{
		ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
		ImFontConfig& cfg = atlas->ConfigData[src_i];
		IM_ASSERT( cfg.DstFont && ( !cfg.DstFont->IsLoaded() || cfg.DstFont->ContainerAtlas == atlas ) );

		// Find index from cfg.DstFont (we allow the user to set cfg.DstFont. Also it makes casual debugging nicer than when storing indices)
		src_tmp.DstIndex = -1;
		for( int output_i = 0; output_i < atlas->Fonts.Size && src_tmp.DstIndex == -1; output_i++ )
			if( cfg.DstFont == atlas->Fonts[output_i] )
			{
				src_tmp.DstIndex = output_i;
			}
		IM_ASSERT( src_tmp.DstIndex != -1 ); // cfg.DstFont not pointing within atlas->Fonts[] array?
		if( src_tmp.DstIndex == -1 )
		{
			return false;
		}

		// Initialize helper structure for font loading and verify that the TTF/OTF data is correct
		const int font_offset = stbtt_GetFontOffsetForIndex( ( unsigned char* )cfg.FontData, cfg.FontNo );
		IM_ASSERT( font_offset >= 0 && "FontData is incorrect, or FontNo cannot be found." );
		if( !stbtt_InitFont( &src_tmp.FontInfo, ( unsigned char* )cfg.FontData, font_offset ) )
		{
			return false;
		}

		// Measure highest codepoints
		ImFontBuildDstData& dst_tmp = dst_tmp_array[src_tmp.DstIndex];
		src_tmp.SrcRanges = cfg.GlyphRanges ? cfg.GlyphRanges : atlas->GetGlyphRangesDefault();
		for( const ImWchar* src_range = src_tmp.SrcRanges; src_range[0] && src_range[1]; src_range += 2 )
		{
			src_tmp.GlyphsHighest = ImMax( src_tmp.GlyphsHighest, ( int )src_range[1] );
		}
		dst_tmp.SrcCount++;
		dst_tmp.GlyphsHighest = ImMax( dst_tmp.GlyphsHighest, src_tmp.GlyphsHighest );
	}

	// 2. For every requested codepoint, check for their presence in the font data, and handle redundancy or overlaps between source fonts to avoid unused glyphs.
	int total_glyphs_count = 0;
	for( int src_i = 0; src_i < src_tmp_array.Size; src_i++ )
	{
		ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
		ImFontBuildDstData& dst_tmp = dst_tmp_array[src_tmp.DstIndex];
		src_tmp.GlyphsSet.Resize( src_tmp.GlyphsHighest + 1 );
		if( dst_tmp.GlyphsSet.Storage.empty() )
		{
			dst_tmp.GlyphsSet.Resize( dst_tmp.GlyphsHighest + 1 );
		}

		for( const ImWchar* src_range = src_tmp.SrcRanges; src_range[0] && src_range[1]; src_range += 2 )
			for( int codepoint = src_range[0]; codepoint <= src_range[1]; codepoint++ )
			{
				if( dst_tmp.GlyphsSet.GetBit( codepoint ) ) // Don't overwrite existing glyphs. We could make this an option for MergeMode (e.g. MergeOverwrite==true)
				{
					continue;
				}
				if( !stbtt_FindGlyphIndex( &src_tmp.FontInfo, codepoint ) ) // It is actually in the font?
				{
					continue;
				}

				// Add to avail set/counters
				src_tmp.GlyphsCount++;
				dst_tmp.GlyphsCount++;
				src_tmp.GlyphsSet.SetBit( codepoint, true );
				dst_tmp.GlyphsSet.SetBit( codepoint, true );
				total_glyphs_count++;
			}
	}

	// 3. Unpack our bit map into a flat list (we now have all the Unicode points that we know are requested _and_ available _and_ not overlapping another)
	for( int src_i = 0; src_i < src_tmp_array.Size; src_i++ )
	{
		ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
		src_tmp.GlyphsList.reserve( src_tmp.GlyphsCount );
		UnpackBoolVectorToFlatIndexList( &src_tmp.GlyphsSet, &src_tmp.GlyphsList );
		src_tmp.GlyphsSet.Clear();
		IM_ASSERT( src_tmp.GlyphsList.Size == src_tmp.GlyphsCount );
	}
	for( int dst_i = 0; dst_i < dst_tmp_array.Size; dst_i++ )
	{
		dst_tmp_array[dst_i].GlyphsSet.Clear();
	}
	dst_tmp_array.clear();

	// Allocate packing character data and flag packed characters buffer as non-packed (x0=y0=x1=y1=0)
	// (We technically don't need to zero-clear buf_rects, but let's do it for the sake of sanity)
	ImVector<stbrp_rect> buf_rects;
	ImVector<stbtt_packedchar> buf_packedchars;
	buf_rects.resize( total_glyphs_count );
	buf_packedchars.resize( total_glyphs_count );
	memset( buf_rects.Data, 0, ( size_t )buf_rects.size_in_bytes() );
	memset( buf_packedchars.Data, 0, ( size_t )buf_packedchars.size_in_bytes() );

	// 4. Gather glyphs sizes so we can pack them in our virtual canvas.
	int total_surface = 0;
	int buf_rects_out_n = 0;
	int buf_packedchars_out_n = 0;
	for( int src_i = 0; src_i < src_tmp_array.Size; src_i++ )
	{
		ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
		if( src_tmp.GlyphsCount == 0 )
		{
			continue;
		}

		src_tmp.Rects = &buf_rects[buf_rects_out_n];
		src_tmp.PackedChars = &buf_packedchars[buf_packedchars_out_n];
		buf_rects_out_n += src_tmp.GlyphsCount;
		buf_packedchars_out_n += src_tmp.GlyphsCount;

		// Convert our ranges in the format stb_truetype wants
		ImFontConfig& cfg = atlas->ConfigData[src_i];
		src_tmp.PackRange.font_size = cfg.SizePixels;
		src_tmp.PackRange.first_unicode_codepoint_in_range = 0;
		src_tmp.PackRange.array_of_unicode_codepoints = src_tmp.GlyphsList.Data;
		src_tmp.PackRange.num_chars = src_tmp.GlyphsList.Size;
		src_tmp.PackRange.chardata_for_range = src_tmp.PackedChars;
		src_tmp.PackRange.h_oversample = ( unsigned char )cfg.OversampleH;
		src_tmp.PackRange.v_oversample = ( unsigned char )cfg.OversampleV;

		// Gather the sizes of all rectangles we will need to pack (this loop is based on stbtt_PackFontRangesGatherRects)
		const float scale = ( cfg.SizePixels > 0 ) ? stbtt_ScaleForPixelHeight( &src_tmp.FontInfo, cfg.SizePixels ) : stbtt_ScaleForMappingEmToPixels( &src_tmp.FontInfo, -cfg.SizePixels );
		const int padding = atlas->TexGlyphPadding;
		for( int glyph_i = 0; glyph_i < src_tmp.GlyphsList.Size; glyph_i++ )
		{
			int x0, y0, x1, y1;
			const int glyph_index_in_font = stbtt_FindGlyphIndex( &src_tmp.FontInfo, src_tmp.GlyphsList[glyph_i] );
			IM_ASSERT( glyph_index_in_font != 0 );
			stbtt_GetGlyphBitmapBoxSubpixel( &src_tmp.FontInfo, glyph_index_in_font, scale * cfg.OversampleH, scale * cfg.OversampleV, 0, 0, &x0, &y0, &x1, &y1 );
			src_tmp.Rects[glyph_i].w = ( stbrp_coord )( x1 - x0 + padding + cfg.OversampleH - 1 );
			src_tmp.Rects[glyph_i].h = ( stbrp_coord )( y1 - y0 + padding + cfg.OversampleV - 1 );
			total_surface += src_tmp.Rects[glyph_i].w * src_tmp.Rects[glyph_i].h;
		}
	}

	// We need a width for the skyline algorithm, any width!
	// The exact width doesn't really matter much, but some API/GPU have texture size limitations and increasing width can decrease height.
	// User can override TexDesiredWidth and TexGlyphPadding if they wish, otherwise we use a simple heuristic to select the width based on expected surface.
	const int surface_sqrt = ( int )ImSqrt( ( float )total_surface ) + 1;
	atlas->TexHeight = 0;
	if( atlas->TexDesiredWidth > 0 )
	{
		atlas->TexWidth = atlas->TexDesiredWidth;
	}
	else
	{
		atlas->TexWidth = ( surface_sqrt >= 4096 * 0.7f ) ? 4096 : ( surface_sqrt >= 2048 * 0.7f ) ? 2048 : ( surface_sqrt >= 1024 * 0.7f ) ? 1024 : 512;
	}

	// 5. Start packing
	// Pack our extra data rectangles first, so it will be on the upper-left corner of our texture (UV will have small values).
	const int TEX_HEIGHT_MAX = 1024 * 32;
	stbtt_pack_context spc = {};
	stbtt_PackBegin( &spc, NULL, atlas->TexWidth, TEX_HEIGHT_MAX, 0, atlas->TexGlyphPadding, NULL );
	ImFontAtlasBuildPackCustomRects( atlas, spc.pack_info );

	// 6. Pack each source font. No rendering yet, we are working with rectangles in an infinitely tall texture at this point.
	for( int src_i = 0; src_i < src_tmp_array.Size; src_i++ )
	{
		ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
		if( src_tmp.GlyphsCount == 0 )
		{
			continue;
		}

		stbrp_pack_rects( ( stbrp_context* )spc.pack_info, src_tmp.Rects, src_tmp.GlyphsCount );

		// Extend texture height and mark missing glyphs as non-packed so we won't render them.
		// FIXME: We are not handling packing failure here (would happen if we got off TEX_HEIGHT_MAX or if a single if larger than TexWidth?)
		for( int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++ )
			if( src_tmp.Rects[glyph_i].was_packed )
			{
				atlas->TexHeight = ImMax( atlas->TexHeight, src_tmp.Rects[glyph_i].y + src_tmp.Rects[glyph_i].h );
			}
	}

	// 7. Allocate texture
	atlas->TexHeight = ( atlas->Flags & ImFontAtlasFlags_NoPowerOfTwoHeight ) ? ( atlas->TexHeight + 1 ) : ImUpperPowerOfTwo( atlas->TexHeight );
	atlas->TexUvScale = ImVec2( 1.0f / atlas->TexWidth, 1.0f / atlas->TexHeight );
	atlas->TexPixelsAlpha8 = ( unsigned char* )IM_ALLOC( atlas->TexWidth * atlas->TexHeight );
	memset( atlas->TexPixelsAlpha8, 0, atlas->TexWidth * atlas->TexHeight );
	spc.pixels = atlas->TexPixelsAlpha8;
	spc.height = atlas->TexHeight;

	// 8. Render/rasterize font characters into the texture
	for( int src_i = 0; src_i < src_tmp_array.Size; src_i++ )
	{
		ImFontConfig& cfg = atlas->ConfigData[src_i];
		ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
		if( src_tmp.GlyphsCount == 0 )
		{
			continue;
		}

		stbtt_PackFontRangesRenderIntoRects( &spc, &src_tmp.FontInfo, &src_tmp.PackRange, 1, src_tmp.Rects );

		// Apply multiply operator
		if( cfg.RasterizerMultiply != 1.0f )
		{
			unsigned char multiply_table[256];
			ImFontAtlasBuildMultiplyCalcLookupTable( multiply_table, cfg.RasterizerMultiply );
			stbrp_rect* r = &src_tmp.Rects[0];
			for( int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++, r++ )
				if( r->was_packed )
				{
					ImFontAtlasBuildMultiplyRectAlpha8( multiply_table, atlas->TexPixelsAlpha8, r->x, r->y, r->w, r->h, atlas->TexWidth * 1 );
				}
		}
		src_tmp.Rects = NULL;
	}

	// End packing
	stbtt_PackEnd( &spc );
	buf_rects.clear();

	// 9. Setup ImFont and glyphs for runtime
	for( int src_i = 0; src_i < src_tmp_array.Size; src_i++ )
	{
		ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
		if( src_tmp.GlyphsCount == 0 )
		{
			continue;
		}

		ImFontConfig& cfg = atlas->ConfigData[src_i];
		ImFont* dst_font = cfg.DstFont; // We can have multiple input fonts writing into a same destination font (when using MergeMode=true)

		const float font_scale = stbtt_ScaleForPixelHeight( &src_tmp.FontInfo, cfg.SizePixels );
		int unscaled_ascent, unscaled_descent, unscaled_line_gap;
		stbtt_GetFontVMetrics( &src_tmp.FontInfo, &unscaled_ascent, &unscaled_descent, &unscaled_line_gap );

		const float ascent = ImFloor( unscaled_ascent * font_scale + ( ( unscaled_ascent > 0.0f ) ? +1 : -1 ) );
		const float descent = ImFloor( unscaled_descent * font_scale + ( ( unscaled_descent > 0.0f ) ? +1 : -1 ) );
		ImFontAtlasBuildSetupFont( atlas, dst_font, &cfg, ascent, descent );
		const float font_off_x = cfg.GlyphOffset.x;
		const float font_off_y = cfg.GlyphOffset.y + ( float )( int )( dst_font->Ascent + 0.5f );

		for( int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++ )
		{
			const int codepoint = src_tmp.GlyphsList[glyph_i];
			const stbtt_packedchar& pc = src_tmp.PackedChars[glyph_i];

			const float char_advance_x_org = pc.xadvance;
			const float char_advance_x_mod = ImClamp( char_advance_x_org, cfg.GlyphMinAdvanceX, cfg.GlyphMaxAdvanceX );
			float char_off_x = font_off_x;
			if( char_advance_x_org != char_advance_x_mod )
			{
				char_off_x += cfg.PixelSnapH ? ( float )( int )( ( char_advance_x_mod - char_advance_x_org ) * 0.5f ) : ( char_advance_x_mod - char_advance_x_org ) * 0.5f;
			}

			// Register glyph
			stbtt_aligned_quad q;
			float dummy_x = 0.0f, dummy_y = 0.0f;
			stbtt_GetPackedQuad( src_tmp.PackedChars, atlas->TexWidth, atlas->TexHeight, glyph_i, &dummy_x, &dummy_y, &q, 0 );
			dst_font->AddGlyph( ( ImWchar )codepoint, q.x0 + char_off_x, q.y0 + font_off_y, q.x1 + char_off_x, q.y1 + font_off_y, q.s0, q.t0, q.s1, q.t1, char_advance_x_mod );
		}
	}

	// Cleanup temporary (ImVector doesn't honor destructor)
	for( int src_i = 0; src_i < src_tmp_array.Size; src_i++ )
	{
		src_tmp_array[src_i].~ImFontBuildSrcData();
	}

	ImFontAtlasBuildFinish( atlas );
	return true;
}

void ImFontAtlasBuildRegisterDefaultCustomRects( ImFontAtlas* atlas )
{
	if( atlas->CustomRectIds[0] >= 0 )
	{
		return;
	}
	if( !( atlas->Flags & ImFontAtlasFlags_NoMouseCursors ) )
	{
		atlas->CustomRectIds[0] = atlas->AddCustomRectRegular( FONT_ATLAS_DEFAULT_TEX_DATA_ID, FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF * 2 + 1, FONT_ATLAS_DEFAULT_TEX_DATA_H );
	}
	else
	{
		atlas->CustomRectIds[0] = atlas->AddCustomRectRegular( FONT_ATLAS_DEFAULT_TEX_DATA_ID, 2, 2 );
	}
}

void ImFontAtlasBuildSetupFont( ImFontAtlas* atlas, ImFont* font, ImFontConfig* font_config, float ascent, float descent )
{
	if( !font_config->MergeMode )
	{
		font->ClearOutputData();
		font->FontSize = font_config->SizePixels;
		font->ConfigData = font_config;
		font->ContainerAtlas = atlas;
		font->Ascent = ascent;
		font->Descent = descent;
	}
	font->ConfigDataCount++;
}

void ImFontAtlasBuildPackCustomRects( ImFontAtlas* atlas, void* stbrp_context_opaque )
{
	stbrp_context* pack_context = ( stbrp_context* )stbrp_context_opaque;
	IM_ASSERT( pack_context != NULL );

	ImVector<ImFontAtlasCustomRect>& user_rects = atlas->CustomRects;
	IM_ASSERT( user_rects.Size >= 1 ); // We expect at least the default custom rects to be registered, else something went wrong.

	ImVector<stbrp_rect> pack_rects;
	pack_rects.resize( user_rects.Size );
	memset( pack_rects.Data, 0, ( size_t )pack_rects.size_in_bytes() );
	for( int i = 0; i < user_rects.Size; i++ )
	{
		pack_rects[i].w = user_rects[i].Width;
		pack_rects[i].h = user_rects[i].Height;
	}
	stbrp_pack_rects( pack_context, &pack_rects[0], pack_rects.Size );
	for( int i = 0; i < pack_rects.Size; i++ )
		if( pack_rects[i].was_packed )
		{
			user_rects[i].X = pack_rects[i].x;
			user_rects[i].Y = pack_rects[i].y;
			IM_ASSERT( pack_rects[i].w == user_rects[i].Width && pack_rects[i].h == user_rects[i].Height );
			atlas->TexHeight = ImMax( atlas->TexHeight, pack_rects[i].y + pack_rects[i].h );
		}
}

static void ImFontAtlasBuildRenderDefaultTexData( ImFontAtlas* atlas )
{
	IM_ASSERT( atlas->CustomRectIds[0] >= 0 );
	IM_ASSERT( atlas->TexPixelsAlpha8 != NULL );
	ImFontAtlasCustomRect& r = atlas->CustomRects[atlas->CustomRectIds[0]];
	IM_ASSERT( r.ID == FONT_ATLAS_DEFAULT_TEX_DATA_ID );
	IM_ASSERT( r.IsPacked() );

	const int w = atlas->TexWidth;
	if( !( atlas->Flags & ImFontAtlasFlags_NoMouseCursors ) )
	{
		// Render/copy pixels
		IM_ASSERT( r.Width == FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF * 2 + 1 && r.Height == FONT_ATLAS_DEFAULT_TEX_DATA_H );
		for( int y = 0, n = 0; y < FONT_ATLAS_DEFAULT_TEX_DATA_H; y++ )
			for( int x = 0; x < FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF; x++, n++ )
			{
				const int offset0 = ( int )( r.X + x ) + ( int )( r.Y + y ) * w;
				const int offset1 = offset0 + FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF + 1;
				atlas->TexPixelsAlpha8[offset0] = FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS[n] == '.' ? 0xFF : 0x00;
				atlas->TexPixelsAlpha8[offset1] = FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS[n] == 'X' ? 0xFF : 0x00;
			}
	}
	else
	{
		IM_ASSERT( r.Width == 2 && r.Height == 2 );
		const int offset = ( int )( r.X ) + ( int )( r.Y ) * w;
		atlas->TexPixelsAlpha8[offset] = atlas->TexPixelsAlpha8[offset + 1] = atlas->TexPixelsAlpha8[offset + w] = atlas->TexPixelsAlpha8[offset + w + 1] = 0xFF;
	}
	atlas->TexUvWhitePixel = ImVec2( ( r.X + 0.5f ) * atlas->TexUvScale.x, ( r.Y + 0.5f ) * atlas->TexUvScale.y );
}

void ImFontAtlasBuildFinish( ImFontAtlas* atlas )
{
	// Render into our custom data block
	ImFontAtlasBuildRenderDefaultTexData( atlas );

	// Register custom rectangle glyphs
	for( int i = 0; i < atlas->CustomRects.Size; i++ )
	{
		const ImFontAtlasCustomRect& r = atlas->CustomRects[i];
		if( r.Font == NULL || r.ID > 0x10000 )
		{
			continue;
		}

		IM_ASSERT( r.Font->ContainerAtlas == atlas );
		ImVec2 uv0, uv1;
		atlas->CalcCustomRectUV( &r, &uv0, &uv1 );
		r.Font->AddGlyph( ( ImWchar )r.ID, r.GlyphOffset.x, r.GlyphOffset.y, r.GlyphOffset.x + r.Width, r.GlyphOffset.y + r.Height, uv0.x, uv0.y, uv1.x, uv1.y, r.GlyphAdvanceX );
	}

	// Build all fonts lookup tables
	for( int i = 0; i < atlas->Fonts.Size; i++ )
		if( atlas->Fonts[i]->DirtyLookupTables )
		{
			atlas->Fonts[i]->BuildLookupTable();
		}

	// Ellipsis character is required for rendering elided text. We prefer using U+2026 (horizontal ellipsis).
	// However some old fonts may contain ellipsis at U+0085. Here we auto-detect most suitable ellipsis character.
	// FIXME: Also note that 0x2026 is currently seldomly included in our font ranges. Because of this we are more likely to use three individual dots.
	for( int i = 0; i < atlas->Fonts.size(); i++ )
	{
		ImFont* font = atlas->Fonts[i];
		if( font->EllipsisChar != ( ImWchar ) - 1 )
		{
			continue;
		}
		const ImWchar ellipsis_variants[] = { ( ImWchar )0x2026, ( ImWchar )0x0085 };
		for( int j = 0; j < IM_ARRAYSIZE( ellipsis_variants ); j++ )
			if( font->FindGlyphNoFallback( ellipsis_variants[j] ) != NULL ) // Verify glyph exists
			{
				font->EllipsisChar = ellipsis_variants[j];
				break;
			}
	}
}

// Retrieve list of range (2 int per range, values are inclusive)
const ImWchar*   ImFontAtlas::GetGlyphRangesDefault()
{
	static const ImWchar ranges[] =
	{
		0x0020, 0x00FF, // Basic Latin + Latin Supplement
		0,
	};
	return &ranges[0];
}

const ImWchar*  ImFontAtlas::GetGlyphRangesKorean()
{
	static const ImWchar ranges[] =
	{
		0x0020, 0x00FF, // Basic Latin + Latin Supplement
		0x3131, 0x3163, // Korean alphabets
		0xAC00, 0xD79D, // Korean characters
		0,
	};
	return &ranges[0];
}

const ImWchar*  ImFontAtlas::GetGlyphRangesChineseFull()
{
	static const ImWchar ranges[] =
	{
		0x0020, 0x00FF, // Basic Latin + Latin Supplement
		0x2000, 0x206F, // General Punctuation
		0x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana
		0x31F0, 0x31FF, // Katakana Phonetic Extensions
		0xFF00, 0xFFEF, // Half-width characters
		0x4e00, 0x9FAF, // CJK Ideograms
		0,
	};
	return &ranges[0];
}

static void UnpackAccumulativeOffsetsIntoRanges( int base_codepoint, const short* accumulative_offsets, int accumulative_offsets_count, ImWchar* out_ranges )
{
	for( int n = 0; n < accumulative_offsets_count; n++, out_ranges += 2 )
	{
		out_ranges[0] = out_ranges[1] = ( ImWchar )( base_codepoint + accumulative_offsets[n] );
		base_codepoint += accumulative_offsets[n];
	}
	out_ranges[0] = 0;
}

//-------------------------------------------------------------------------
// [SECTION] ImFontAtlas glyph ranges helpers
//-------------------------------------------------------------------------

const ImWchar*  ImFontAtlas::GetGlyphRangesChineseSimplifiedCommon()
{
	// Store 2500 regularly used characters for Simplified Chinese.
	// Sourced from https://zh.wiktionary.org/wiki/%E9%99%84%E5%BD%95:%E7%8E%B0%E4%BB%A3%E6%B1%89%E8%AF%AD%E5%B8%B8%E7%94%A8%E5%AD%97%E8%A1%A8
	// This table covers 97.97% of all characters used during the month in July, 1987.
	// You can use ImFontGlyphRangesBuilder to create your own ranges derived from this, by merging existing ranges or adding new characters.
	// (Stored as accumulative offsets from the initial unicode codepoint 0x4E00. This encoding is designed to helps us compact the source code size.)
	static const short accumulative_offsets_from_0x4E00[] =
	{
		0, 1, 2, 4, 1, 1, 1, 1, 2, 1, 3, 2, 1, 2, 2, 1, 1, 1, 1, 1, 5, 2, 1, 2, 3, 3, 3, 2, 2, 4, 1, 1, 1, 2, 1, 5, 2, 3, 1, 2, 1, 2, 1, 1, 2, 1, 1, 2, 2, 1, 4, 1, 1, 1, 1, 5, 10, 1, 2, 19, 2, 1, 2, 1, 2, 1, 2, 1, 2,
		1, 5, 1, 6, 3, 2, 1, 2, 2, 1, 1, 1, 4, 8, 5, 1, 1, 4, 1, 1, 3, 1, 2, 1, 5, 1, 2, 1, 1, 1, 10, 1, 1, 5, 2, 4, 6, 1, 4, 2, 2, 2, 12, 2, 1, 1, 6, 1, 1, 1, 4, 1, 1, 4, 6, 5, 1, 4, 2, 2, 4, 10, 7, 1, 1, 4, 2, 4,
		2, 1, 4, 3, 6, 10, 12, 5, 7, 2, 14, 2, 9, 1, 1, 6, 7, 10, 4, 7, 13, 1, 5, 4, 8, 4, 1, 1, 2, 28, 5, 6, 1, 1, 5, 2, 5, 20, 2, 2, 9, 8, 11, 2, 9, 17, 1, 8, 6, 8, 27, 4, 6, 9, 20, 11, 27, 6, 68, 2, 2, 1, 1,
		1, 2, 1, 2, 2, 7, 6, 11, 3, 3, 1, 1, 3, 1, 2, 1, 1, 1, 1, 1, 3, 1, 1, 8, 3, 4, 1, 5, 7, 2, 1, 4, 4, 8, 4, 2, 1, 2, 1, 1, 4, 5, 6, 3, 6, 2, 12, 3, 1, 3, 9, 2, 4, 3, 4, 1, 5, 3, 3, 1, 3, 7, 1, 5, 1, 1, 1, 1, 2,
		3, 4, 5, 2, 3, 2, 6, 1, 1, 2, 1, 7, 1, 7, 3, 4, 5, 15, 2, 2, 1, 5, 3, 22, 19, 2, 1, 1, 1, 1, 2, 5, 1, 1, 1, 6, 1, 1, 12, 8, 2, 9, 18, 22, 4, 1, 1, 5, 1, 16, 1, 2, 7, 10, 15, 1, 1, 6, 2, 4, 1, 2, 4, 1, 6,
		1, 1, 3, 2, 4, 1, 6, 4, 5, 1, 2, 1, 1, 2, 1, 10, 3, 1, 3, 2, 1, 9, 3, 2, 5, 7, 2, 19, 4, 3, 6, 1, 1, 1, 1, 1, 4, 3, 2, 1, 1, 1, 2, 5, 3, 1, 1, 1, 2, 2, 1, 1, 2, 1, 1, 2, 1, 3, 1, 1, 1, 3, 7, 1, 4, 1, 1, 2, 1,
		1, 2, 1, 2, 4, 4, 3, 8, 1, 1, 1, 2, 1, 3, 5, 1, 3, 1, 3, 4, 6, 2, 2, 14, 4, 6, 6, 11, 9, 1, 15, 3, 1, 28, 5, 2, 5, 5, 3, 1, 3, 4, 5, 4, 6, 14, 3, 2, 3, 5, 21, 2, 7, 20, 10, 1, 2, 19, 2, 4, 28, 28, 2, 3,
		2, 1, 14, 4, 1, 26, 28, 42, 12, 40, 3, 52, 79, 5, 14, 17, 3, 2, 2, 11, 3, 4, 6, 3, 1, 8, 2, 23, 4, 5, 8, 10, 4, 2, 7, 3, 5, 1, 1, 6, 3, 1, 2, 2, 2, 5, 28, 1, 1, 7, 7, 20, 5, 3, 29, 3, 17, 26, 1, 8, 4,
		27, 3, 6, 11, 23, 5, 3, 4, 6, 13, 24, 16, 6, 5, 10, 25, 35, 7, 3, 2, 3, 3, 14, 3, 6, 2, 6, 1, 4, 2, 3, 8, 2, 1, 1, 3, 3, 3, 4, 1, 1, 13, 2, 2, 4, 5, 2, 1, 14, 14, 1, 2, 2, 1, 4, 5, 2, 3, 1, 14, 3, 12,
		3, 17, 2, 16, 5, 1, 2, 1, 8, 9, 3, 19, 4, 2, 2, 4, 17, 25, 21, 20, 28, 75, 1, 10, 29, 103, 4, 1, 2, 1, 1, 4, 2, 4, 1, 2, 3, 24, 2, 2, 2, 1, 1, 2, 1, 3, 8, 1, 1, 1, 2, 1, 1, 3, 1, 1, 1, 6, 1, 5, 3, 1, 1,
		1, 3, 4, 1, 1, 5, 2, 1, 5, 6, 13, 9, 16, 1, 1, 1, 1, 3, 2, 3, 2, 4, 5, 2, 5, 2, 2, 3, 7, 13, 7, 2, 2, 1, 1, 1, 1, 2, 3, 3, 2, 1, 6, 4, 9, 2, 1, 14, 2, 14, 2, 1, 18, 3, 4, 14, 4, 11, 41, 15, 23, 15, 23,
		176, 1, 3, 4, 1, 1, 1, 1, 5, 3, 1, 2, 3, 7, 3, 1, 1, 2, 1, 2, 4, 4, 6, 2, 4, 1, 9, 7, 1, 10, 5, 8, 16, 29, 1, 1, 2, 2, 3, 1, 3, 5, 2, 4, 5, 4, 1, 1, 2, 2, 3, 3, 7, 1, 6, 10, 1, 17, 1, 44, 4, 6, 2, 1, 1, 6,
		5, 4, 2, 10, 1, 6, 9, 2, 8, 1, 24, 1, 2, 13, 7, 8, 8, 2, 1, 4, 1, 3, 1, 3, 3, 5, 2, 5, 10, 9, 4, 9, 12, 2, 1, 6, 1, 10, 1, 1, 7, 7, 4, 10, 8, 3, 1, 13, 4, 3, 1, 6, 1, 3, 5, 2, 1, 2, 17, 16, 5, 2, 16, 6,
		1, 4, 2, 1, 3, 3, 6, 8, 5, 11, 11, 1, 3, 3, 2, 4, 6, 10, 9, 5, 7, 4, 7, 4, 7, 1, 1, 4, 2, 1, 3, 6, 8, 7, 1, 6, 11, 5, 5, 3, 24, 9, 4, 2, 7, 13, 5, 1, 8, 82, 16, 61, 1, 1, 1, 4, 2, 2, 16, 10, 3, 8, 1, 1,
		6, 4, 2, 1, 3, 1, 1, 1, 4, 3, 8, 4, 2, 2, 1, 1, 1, 1, 1, 6, 3, 5, 1, 1, 4, 6, 9, 2, 1, 1, 1, 2, 1, 7, 2, 1, 6, 1, 5, 4, 4, 3, 1, 8, 1, 3, 3, 1, 3, 2, 2, 2, 2, 3, 1, 6, 1, 2, 1, 2, 1, 3, 7, 1, 8, 2, 1, 2, 1, 5,
		2, 5, 3, 5, 10, 1, 2, 1, 1, 3, 2, 5, 11, 3, 9, 3, 5, 1, 1, 5, 9, 1, 2, 1, 5, 7, 9, 9, 8, 1, 3, 3, 3, 6, 8, 2, 3, 2, 1, 1, 32, 6, 1, 2, 15, 9, 3, 7, 13, 1, 3, 10, 13, 2, 14, 1, 13, 10, 2, 1, 3, 10, 4, 15,
		2, 15, 15, 10, 1, 3, 9, 6, 9, 32, 25, 26, 47, 7, 3, 2, 3, 1, 6, 3, 4, 3, 2, 8, 5, 4, 1, 9, 4, 2, 2, 19, 10, 6, 2, 3, 8, 1, 2, 2, 4, 2, 1, 9, 4, 4, 4, 6, 4, 8, 9, 2, 3, 1, 1, 1, 1, 3, 5, 5, 1, 3, 8, 4, 6,
		2, 1, 4, 12, 1, 5, 3, 7, 13, 2, 5, 8, 1, 6, 1, 2, 5, 14, 6, 1, 5, 2, 4, 8, 15, 5, 1, 23, 6, 62, 2, 10, 1, 1, 8, 1, 2, 2, 10, 4, 2, 2, 9, 2, 1, 1, 3, 2, 3, 1, 5, 3, 3, 2, 1, 3, 8, 1, 1, 1, 11, 3, 1, 1, 4,
		3, 7, 1, 14, 1, 2, 3, 12, 5, 2, 5, 1, 6, 7, 5, 7, 14, 11, 1, 3, 1, 8, 9, 12, 2, 1, 11, 8, 4, 4, 2, 6, 10, 9, 13, 1, 1, 3, 1, 5, 1, 3, 2, 4, 4, 1, 18, 2, 3, 14, 11, 4, 29, 4, 2, 7, 1, 3, 13, 9, 2, 2, 5,
		3, 5, 20, 7, 16, 8, 5, 72, 34, 6, 4, 22, 12, 12, 28, 45, 36, 9, 7, 39, 9, 191, 1, 1, 1, 4, 11, 8, 4, 9, 2, 3, 22, 1, 1, 1, 1, 4, 17, 1, 7, 7, 1, 11, 31, 10, 2, 4, 8, 2, 3, 2, 1, 4, 2, 16, 4, 32, 2,
		3, 19, 13, 4, 9, 1, 5, 2, 14, 8, 1, 1, 3, 6, 19, 6, 5, 1, 16, 6, 2, 10, 8, 5, 1, 2, 3, 1, 5, 5, 1, 11, 6, 6, 1, 3, 3, 2, 6, 3, 8, 1, 1, 4, 10, 7, 5, 7, 7, 5, 8, 9, 2, 1, 3, 4, 1, 1, 3, 1, 3, 3, 2, 6, 16,
		1, 4, 6, 3, 1, 10, 6, 1, 3, 15, 2, 9, 2, 10, 25, 13, 9, 16, 6, 2, 2, 10, 11, 4, 3, 9, 1, 2, 6, 6, 5, 4, 30, 40, 1, 10, 7, 12, 14, 33, 6, 3, 6, 7, 3, 1, 3, 1, 11, 14, 4, 9, 5, 12, 11, 49, 18, 51, 31,
		140, 31, 2, 2, 1, 5, 1, 8, 1, 10, 1, 4, 4, 3, 24, 1, 10, 1, 3, 6, 6, 16, 3, 4, 5, 2, 1, 4, 2, 57, 10, 6, 22, 2, 22, 3, 7, 22, 6, 10, 11, 36, 18, 16, 33, 36, 2, 5, 5, 1, 1, 1, 4, 10, 1, 4, 13, 2, 7,
		5, 2, 9, 3, 4, 1, 7, 43, 3, 7, 3, 9, 14, 7, 9, 1, 11, 1, 1, 3, 7, 4, 18, 13, 1, 14, 1, 3, 6, 10, 73, 2, 2, 30, 6, 1, 11, 18, 19, 13, 22, 3, 46, 42, 37, 89, 7, 3, 16, 34, 2, 2, 3, 9, 1, 7, 1, 1, 1, 2,
		2, 4, 10, 7, 3, 10, 3, 9, 5, 28, 9, 2, 6, 13, 7, 3, 1, 3, 10, 2, 7, 2, 11, 3, 6, 21, 54, 85, 2, 1, 4, 2, 2, 1, 39, 3, 21, 2, 2, 5, 1, 1, 1, 4, 1, 1, 3, 4, 15, 1, 3, 2, 4, 4, 2, 3, 8, 2, 20, 1, 8, 7, 13,
		4, 1, 26, 6, 2, 9, 34, 4, 21, 52, 10, 4, 4, 1, 5, 12, 2, 11, 1, 7, 2, 30, 12, 44, 2, 30, 1, 1, 3, 6, 16, 9, 17, 39, 82, 2, 2, 24, 7, 1, 7, 3, 16, 9, 14, 44, 2, 1, 2, 1, 2, 3, 5, 2, 4, 1, 6, 7, 5, 3,
		2, 6, 1, 11, 5, 11, 2, 1, 18, 19, 8, 1, 3, 24, 29, 2, 1, 3, 5, 2, 2, 1, 13, 6, 5, 1, 46, 11, 3, 5, 1, 1, 5, 8, 2, 10, 6, 12, 6, 3, 7, 11, 2, 4, 16, 13, 2, 5, 1, 1, 2, 2, 5, 2, 28, 5, 2, 23, 10, 8, 4,
		4, 22, 39, 95, 38, 8, 14, 9, 5, 1, 13, 5, 4, 3, 13, 12, 11, 1, 9, 1, 27, 37, 2, 5, 4, 4, 63, 211, 95, 2, 2, 2, 1, 3, 5, 2, 1, 1, 2, 2, 1, 1, 1, 3, 2, 4, 1, 2, 1, 1, 5, 2, 2, 1, 1, 2, 3, 1, 3, 1, 1, 1,
		3, 1, 4, 2, 1, 3, 6, 1, 1, 3, 7, 15, 5, 3, 2, 5, 3, 9, 11, 4, 2, 22, 1, 6, 3, 8, 7, 1, 4, 28, 4, 16, 3, 3, 25, 4, 4, 27, 27, 1, 4, 1, 2, 2, 7, 1, 3, 5, 2, 28, 8, 2, 14, 1, 8, 6, 16, 25, 3, 3, 3, 14, 3,
		3, 1, 1, 2, 1, 4, 6, 3, 8, 4, 1, 1, 1, 2, 3, 6, 10, 6, 2, 3, 18, 3, 2, 5, 5, 4, 3, 1, 5, 2, 5, 4, 23, 7, 6, 12, 6, 4, 17, 11, 9, 5, 1, 1, 10, 5, 12, 1, 1, 11, 26, 33, 7, 3, 6, 1, 17, 7, 1, 5, 12, 1, 11,
		2, 4, 1, 8, 14, 17, 23, 1, 2, 1, 7, 8, 16, 11, 9, 6, 5, 2, 6, 4, 16, 2, 8, 14, 1, 11, 8, 9, 1, 1, 1, 9, 25, 4, 11, 19, 7, 2, 15, 2, 12, 8, 52, 7, 5, 19, 2, 16, 4, 36, 8, 1, 16, 8, 24, 26, 4, 6, 2, 9,
		5, 4, 36, 3, 28, 12, 25, 15, 37, 27, 17, 12, 59, 38, 5, 32, 127, 1, 2, 9, 17, 14, 4, 1, 2, 1, 1, 8, 11, 50, 4, 14, 2, 19, 16, 4, 17, 5, 4, 5, 26, 12, 45, 2, 23, 45, 104, 30, 12, 8, 3, 10, 2, 2,
		3, 3, 1, 4, 20, 7, 2, 9, 6, 15, 2, 20, 1, 3, 16, 4, 11, 15, 6, 134, 2, 5, 59, 1, 2, 2, 2, 1, 9, 17, 3, 26, 137, 10, 211, 59, 1, 2, 4, 1, 4, 1, 1, 1, 2, 6, 2, 3, 1, 1, 2, 3, 2, 3, 1, 3, 4, 4, 2, 3, 3,
		1, 4, 3, 1, 7, 2, 2, 3, 1, 2, 1, 3, 3, 3, 2, 2, 3, 2, 1, 3, 14, 6, 1, 3, 2, 9, 6, 15, 27, 9, 34, 145, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 2, 2, 3, 1, 2, 1, 1, 1, 2, 3, 5, 8, 3, 5, 2, 4, 1, 3, 2, 2, 2, 12,
		4, 1, 1, 1, 10, 4, 5, 1, 20, 4, 16, 1, 15, 9, 5, 12, 2, 9, 2, 5, 4, 2, 26, 19, 7, 1, 26, 4, 30, 12, 15, 42, 1, 6, 8, 172, 1, 1, 4, 2, 1, 1, 11, 2, 2, 4, 2, 1, 2, 1, 10, 8, 1, 2, 1, 4, 5, 1, 2, 5, 1, 8,
		4, 1, 3, 4, 2, 1, 6, 2, 1, 3, 4, 1, 2, 1, 1, 1, 1, 12, 5, 7, 2, 4, 3, 1, 1, 1, 3, 3, 6, 1, 2, 2, 3, 3, 3, 2, 1, 2, 12, 14, 11, 6, 6, 4, 12, 2, 8, 1, 7, 10, 1, 35, 7, 4, 13, 15, 4, 3, 23, 21, 28, 52, 5,
		26, 5, 6, 1, 7, 10, 2, 7, 53, 3, 2, 1, 1, 1, 2, 163, 532, 1, 10, 11, 1, 3, 3, 4, 8, 2, 8, 6, 2, 2, 23, 22, 4, 2, 2, 4, 2, 1, 3, 1, 3, 3, 5, 9, 8, 2, 1, 2, 8, 1, 10, 2, 12, 21, 20, 15, 105, 2, 3, 1, 1,
		3, 2, 3, 1, 1, 2, 5, 1, 4, 15, 11, 19, 1, 1, 1, 1, 5, 4, 5, 1, 1, 2, 5, 3, 5, 12, 1, 2, 5, 1, 11, 1, 1, 15, 9, 1, 4, 5, 3, 26, 8, 2, 1, 3, 1, 1, 15, 19, 2, 12, 1, 2, 5, 2, 7, 2, 19, 2, 20, 6, 26, 7, 5,
		2, 2, 7, 34, 21, 13, 70, 2, 128, 1, 1, 2, 1, 1, 2, 1, 1, 3, 2, 2, 2, 15, 1, 4, 1, 3, 4, 42, 10, 6, 1, 49, 85, 8, 1, 2, 1, 1, 4, 4, 2, 3, 6, 1, 5, 7, 4, 3, 211, 4, 1, 2, 1, 2, 5, 1, 2, 4, 2, 2, 6, 5, 6,
		10, 3, 4, 48, 100, 6, 2, 16, 296, 5, 27, 387, 2, 2, 3, 7, 16, 8, 5, 38, 15, 39, 21, 9, 10, 3, 7, 59, 13, 27, 21, 47, 5, 21, 6
	};
	static ImWchar base_ranges[] = // not zero-terminated
	{
		0x0020, 0x00FF, // Basic Latin + Latin Supplement
		0x2000, 0x206F, // General Punctuation
		0x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana
		0x31F0, 0x31FF, // Katakana Phonetic Extensions
		0xFF00, 0xFFEF  // Half-width characters
	};
	static ImWchar full_ranges[IM_ARRAYSIZE( base_ranges ) + IM_ARRAYSIZE( accumulative_offsets_from_0x4E00 ) * 2 + 1] = { 0 };
	if( !full_ranges[0] )
	{
		memcpy( full_ranges, base_ranges, sizeof( base_ranges ) );
		UnpackAccumulativeOffsetsIntoRanges( 0x4E00, accumulative_offsets_from_0x4E00, IM_ARRAYSIZE( accumulative_offsets_from_0x4E00 ), full_ranges + IM_ARRAYSIZE( base_ranges ) );
	}
	return &full_ranges[0];
}

const ImWchar*  ImFontAtlas::GetGlyphRangesJapanese()
{
	// 1946 common ideograms code points for Japanese
	// Sourced from http://theinstructionlimit.com/common-kanji-character-ranges-for-xna-spritefont-rendering
	// FIXME: Source a list of the revised 2136 Joyo Kanji list from 2010 and rebuild this.
	// You can use ImFontGlyphRangesBuilder to create your own ranges derived from this, by merging existing ranges or adding new characters.
	// (Stored as accumulative offsets from the initial unicode codepoint 0x4E00. This encoding is designed to helps us compact the source code size.)
	static const short accumulative_offsets_from_0x4E00[] =
	{
		0, 1, 2, 4, 1, 1, 1, 1, 2, 1, 6, 2, 2, 1, 8, 5, 7, 11, 1, 2, 10, 10, 8, 2, 4, 20, 2, 11, 8, 2, 1, 2, 1, 6, 2, 1, 7, 5, 3, 7, 1, 1, 13, 7, 9, 1, 4, 6, 1, 2, 1, 10, 1, 1, 9, 2, 2, 4, 5, 6, 14, 1, 1, 9, 3, 18,
		5, 4, 2, 2, 10, 7, 1, 1, 1, 3, 2, 4, 3, 23, 2, 10, 12, 2, 14, 2, 4, 13, 1, 6, 10, 3, 1, 7, 13, 6, 4, 13, 5, 2, 3, 17, 2, 2, 5, 7, 6, 4, 1, 7, 14, 16, 6, 13, 9, 15, 1, 1, 7, 16, 4, 7, 1, 19, 9, 2, 7, 15,
		2, 6, 5, 13, 25, 4, 14, 13, 11, 25, 1, 1, 1, 2, 1, 2, 2, 3, 10, 11, 3, 3, 1, 1, 4, 4, 2, 1, 4, 9, 1, 4, 3, 5, 5, 2, 7, 12, 11, 15, 7, 16, 4, 5, 16, 2, 1, 1, 6, 3, 3, 1, 1, 2, 7, 6, 6, 7, 1, 4, 7, 6, 1, 1,
		2, 1, 12, 3, 3, 9, 5, 8, 1, 11, 1, 2, 3, 18, 20, 4, 1, 3, 6, 1, 7, 3, 5, 5, 7, 2, 2, 12, 3, 1, 4, 2, 3, 2, 3, 11, 8, 7, 4, 17, 1, 9, 25, 1, 1, 4, 2, 2, 4, 1, 2, 7, 1, 1, 1, 3, 1, 2, 6, 16, 1, 2, 1, 1, 3, 12,
		20, 2, 5, 20, 8, 7, 6, 2, 1, 1, 1, 1, 6, 2, 1, 2, 10, 1, 1, 6, 1, 3, 1, 2, 1, 4, 1, 12, 4, 1, 3, 1, 1, 1, 1, 1, 10, 4, 7, 5, 13, 1, 15, 1, 1, 30, 11, 9, 1, 15, 38, 14, 1, 32, 17, 20, 1, 9, 31, 2, 21, 9,
		4, 49, 22, 2, 1, 13, 1, 11, 45, 35, 43, 55, 12, 19, 83, 1, 3, 2, 3, 13, 2, 1, 7, 3, 18, 3, 13, 8, 1, 8, 18, 5, 3, 7, 25, 24, 9, 24, 40, 3, 17, 24, 2, 1, 6, 2, 3, 16, 15, 6, 7, 3, 12, 1, 9, 7, 3, 3,
		3, 15, 21, 5, 16, 4, 5, 12, 11, 11, 3, 6, 3, 2, 31, 3, 2, 1, 1, 23, 6, 6, 1, 4, 2, 6, 5, 2, 1, 1, 3, 3, 22, 2, 6, 2, 3, 17, 3, 2, 4, 5, 1, 9, 5, 1, 1, 6, 15, 12, 3, 17, 2, 14, 2, 8, 1, 23, 16, 4, 2, 23,
		8, 15, 23, 20, 12, 25, 19, 47, 11, 21, 65, 46, 4, 3, 1, 5, 6, 1, 2, 5, 26, 2, 1, 1, 3, 11, 1, 1, 1, 2, 1, 2, 3, 1, 1, 10, 2, 3, 1, 1, 1, 3, 6, 3, 2, 2, 6, 6, 9, 2, 2, 2, 6, 2, 5, 10, 2, 4, 1, 2, 1, 2, 2,
		3, 1, 1, 3, 1, 2, 9, 23, 9, 2, 1, 1, 1, 1, 5, 3, 2, 1, 10, 9, 6, 1, 10, 2, 31, 25, 3, 7, 5, 40, 1, 15, 6, 17, 7, 27, 180, 1, 3, 2, 2, 1, 1, 1, 6, 3, 10, 7, 1, 3, 6, 17, 8, 6, 2, 2, 1, 3, 5, 5, 8, 16, 14,
		15, 1, 1, 4, 1, 2, 1, 1, 1, 3, 2, 7, 5, 6, 2, 5, 10, 1, 4, 2, 9, 1, 1, 11, 6, 1, 44, 1, 3, 7, 9, 5, 1, 3, 1, 1, 10, 7, 1, 10, 4, 2, 7, 21, 15, 7, 2, 5, 1, 8, 3, 4, 1, 3, 1, 6, 1, 4, 2, 1, 4, 10, 8, 1, 4, 5,
		1, 5, 10, 2, 7, 1, 10, 1, 1, 3, 4, 11, 10, 29, 4, 7, 3, 5, 2, 3, 33, 5, 2, 19, 3, 1, 4, 2, 6, 31, 11, 1, 3, 3, 3, 1, 8, 10, 9, 12, 11, 12, 8, 3, 14, 8, 6, 11, 1, 4, 41, 3, 1, 2, 7, 13, 1, 5, 6, 2, 6, 12,
		12, 22, 5, 9, 4, 8, 9, 9, 34, 6, 24, 1, 1, 20, 9, 9, 3, 4, 1, 7, 2, 2, 2, 6, 2, 28, 5, 3, 6, 1, 4, 6, 7, 4, 2, 1, 4, 2, 13, 6, 4, 4, 3, 1, 8, 8, 3, 2, 1, 5, 1, 2, 2, 3, 1, 11, 11, 7, 3, 6, 10, 8, 6, 16, 16,
		22, 7, 12, 6, 21, 5, 4, 6, 6, 3, 6, 1, 3, 2, 1, 2, 8, 29, 1, 10, 1, 6, 13, 6, 6, 19, 31, 1, 13, 4, 4, 22, 17, 26, 33, 10, 4, 15, 12, 25, 6, 67, 10, 2, 3, 1, 6, 10, 2, 6, 2, 9, 1, 9, 4, 4, 1, 2, 16, 2,
		5, 9, 2, 3, 8, 1, 8, 3, 9, 4, 8, 6, 4, 8, 11, 3, 2, 1, 1, 3, 26, 1, 7, 5, 1, 11, 1, 5, 3, 5, 2, 13, 6, 39, 5, 1, 5, 2, 11, 6, 10, 5, 1, 15, 5, 3, 6, 19, 21, 22, 2, 4, 1, 6, 1, 8, 1, 4, 8, 2, 4, 2, 2, 9, 2,
		1, 1, 1, 4, 3, 6, 3, 12, 7, 1, 14, 2, 4, 10, 2, 13, 1, 17, 7, 3, 2, 1, 3, 2, 13, 7, 14, 12, 3, 1, 29, 2, 8, 9, 15, 14, 9, 14, 1, 3, 1, 6, 5, 9, 11, 3, 38, 43, 20, 7, 7, 8, 5, 15, 12, 19, 15, 81, 8, 7,
		1, 5, 73, 13, 37, 28, 8, 8, 1, 15, 18, 20, 165, 28, 1, 6, 11, 8, 4, 14, 7, 15, 1, 3, 3, 6, 4, 1, 7, 14, 1, 1, 11, 30, 1, 5, 1, 4, 14, 1, 4, 2, 7, 52, 2, 6, 29, 3, 1, 9, 1, 21, 3, 5, 1, 26, 3, 11, 14,
		11, 1, 17, 5, 1, 2, 1, 3, 2, 8, 1, 2, 9, 12, 1, 1, 2, 3, 8, 3, 24, 12, 7, 7, 5, 17, 3, 3, 3, 1, 23, 10, 4, 4, 6, 3, 1, 16, 17, 22, 3, 10, 21, 16, 16, 6, 4, 10, 2, 1, 1, 2, 8, 8, 6, 5, 3, 3, 3, 39, 25,
		15, 1, 1, 16, 6, 7, 25, 15, 6, 6, 12, 1, 22, 13, 1, 4, 9, 5, 12, 2, 9, 1, 12, 28, 8, 3, 5, 10, 22, 60, 1, 2, 40, 4, 61, 63, 4, 1, 13, 12, 1, 4, 31, 12, 1, 14, 89, 5, 16, 6, 29, 14, 2, 5, 49, 18, 18,
		5, 29, 33, 47, 1, 17, 1, 19, 12, 2, 9, 7, 39, 12, 3, 7, 12, 39, 3, 1, 46, 4, 12, 3, 8, 9, 5, 31, 15, 18, 3, 2, 2, 66, 19, 13, 17, 5, 3, 46, 124, 13, 57, 34, 2, 5, 4, 5, 8, 1, 1, 1, 4, 3, 1, 17, 5,
		3, 5, 3, 1, 8, 5, 6, 3, 27, 3, 26, 7, 12, 7, 2, 17, 3, 7, 18, 78, 16, 4, 36, 1, 2, 1, 6, 2, 1, 39, 17, 7, 4, 13, 4, 4, 4, 1, 10, 4, 2, 4, 6, 3, 10, 1, 19, 1, 26, 2, 4, 33, 2, 73, 47, 7, 3, 8, 2, 4, 15,
		18, 1, 29, 2, 41, 14, 1, 21, 16, 41, 7, 39, 25, 13, 44, 2, 2, 10, 1, 13, 7, 1, 7, 3, 5, 20, 4, 8, 2, 49, 1, 10, 6, 1, 6, 7, 10, 7, 11, 16, 3, 12, 20, 4, 10, 3, 1, 2, 11, 2, 28, 9, 2, 4, 7, 2, 15, 1,
		27, 1, 28, 17, 4, 5, 10, 7, 3, 24, 10, 11, 6, 26, 3, 2, 7, 2, 2, 49, 16, 10, 16, 15, 4, 5, 27, 61, 30, 14, 38, 22, 2, 7, 5, 1, 3, 12, 23, 24, 17, 17, 3, 3, 2, 4, 1, 6, 2, 7, 5, 1, 1, 5, 1, 1, 9, 4,
		1, 3, 6, 1, 8, 2, 8, 4, 14, 3, 5, 11, 4, 1, 3, 32, 1, 19, 4, 1, 13, 11, 5, 2, 1, 8, 6, 8, 1, 6, 5, 13, 3, 23, 11, 5, 3, 16, 3, 9, 10, 1, 24, 3, 198, 52, 4, 2, 2, 5, 14, 5, 4, 22, 5, 20, 4, 11, 6, 41,
		1, 5, 2, 2, 11, 5, 2, 28, 35, 8, 22, 3, 18, 3, 10, 7, 5, 3, 4, 1, 5, 3, 8, 9, 3, 6, 2, 16, 22, 4, 5, 5, 3, 3, 18, 23, 2, 6, 23, 5, 27, 8, 1, 33, 2, 12, 43, 16, 5, 2, 3, 6, 1, 20, 4, 2, 9, 7, 1, 11, 2,
		10, 3, 14, 31, 9, 3, 25, 18, 20, 2, 5, 5, 26, 14, 1, 11, 17, 12, 40, 19, 9, 6, 31, 83, 2, 7, 9, 19, 78, 12, 14, 21, 76, 12, 113, 79, 34, 4, 1, 1, 61, 18, 85, 10, 2, 2, 13, 31, 11, 50, 6, 33, 159,
		179, 6, 6, 7, 4, 4, 2, 4, 2, 5, 8, 7, 20, 32, 22, 1, 3, 10, 6, 7, 28, 5, 10, 9, 2, 77, 19, 13, 2, 5, 1, 4, 4, 7, 4, 13, 3, 9, 31, 17, 3, 26, 2, 6, 6, 5, 4, 1, 7, 11, 3, 4, 2, 1, 6, 2, 20, 4, 1, 9, 2, 6,
		3, 7, 1, 1, 1, 20, 2, 3, 1, 6, 2, 3, 6, 2, 4, 8, 1, 5, 13, 8, 4, 11, 23, 1, 10, 6, 2, 1, 3, 21, 2, 2, 4, 24, 31, 4, 10, 10, 2, 5, 192, 15, 4, 16, 7, 9, 51, 1, 2, 1, 1, 5, 1, 1, 2, 1, 3, 5, 3, 1, 3, 4, 1,
		3, 1, 3, 3, 9, 8, 1, 2, 2, 2, 4, 4, 18, 12, 92, 2, 10, 4, 3, 14, 5, 25, 16, 42, 4, 14, 4, 2, 21, 5, 126, 30, 31, 2, 1, 5, 13, 3, 22, 5, 6, 6, 20, 12, 1, 14, 12, 87, 3, 19, 1, 8, 2, 9, 9, 3, 3, 23, 2,
		3, 7, 6, 3, 1, 2, 3, 9, 1, 3, 1, 6, 3, 2, 1, 3, 11, 3, 1, 6, 10, 3, 2, 3, 1, 2, 1, 5, 1, 1, 11, 3, 6, 4, 1, 7, 2, 1, 2, 5, 5, 34, 4, 14, 18, 4, 19, 7, 5, 8, 2, 6, 79, 1, 5, 2, 14, 8, 2, 9, 2, 1, 36, 28, 16,
		4, 1, 1, 1, 2, 12, 6, 42, 39, 16, 23, 7, 15, 15, 3, 2, 12, 7, 21, 64, 6, 9, 28, 8, 12, 3, 3, 41, 59, 24, 51, 55, 57, 294, 9, 9, 2, 6, 2, 15, 1, 2, 13, 38, 90, 9, 9, 9, 3, 11, 7, 1, 1, 1, 5, 6, 3, 2,
		1, 2, 2, 3, 8, 1, 4, 4, 1, 5, 7, 1, 4, 3, 20, 4, 9, 1, 1, 1, 5, 5, 17, 1, 5, 2, 6, 2, 4, 1, 4, 5, 7, 3, 18, 11, 11, 32, 7, 5, 4, 7, 11, 127, 8, 4, 3, 3, 1, 10, 1, 1, 6, 21, 14, 1, 16, 1, 7, 1, 3, 6, 9, 65,
		51, 4, 3, 13, 3, 10, 1, 1, 12, 9, 21, 110, 3, 19, 24, 1, 1, 10, 62, 4, 1, 29, 42, 78, 28, 20, 18, 82, 6, 3, 15, 6, 84, 58, 253, 15, 155, 264, 15, 21, 9, 14, 7, 58, 40, 39,
	};
	static ImWchar base_ranges[] = // not zero-terminated
	{
		0x0020, 0x00FF, // Basic Latin + Latin Supplement
		0x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana
		0x31F0, 0x31FF, // Katakana Phonetic Extensions
		0xFF00, 0xFFEF  // Half-width characters
	};
	static ImWchar full_ranges[IM_ARRAYSIZE( base_ranges ) + IM_ARRAYSIZE( accumulative_offsets_from_0x4E00 ) * 2 + 1] = { 0 };
	if( !full_ranges[0] )
	{
		memcpy( full_ranges, base_ranges, sizeof( base_ranges ) );
		UnpackAccumulativeOffsetsIntoRanges( 0x4E00, accumulative_offsets_from_0x4E00, IM_ARRAYSIZE( accumulative_offsets_from_0x4E00 ), full_ranges + IM_ARRAYSIZE( base_ranges ) );
	}
	return &full_ranges[0];
}

const ImWchar*  ImFontAtlas::GetGlyphRangesCyrillic()
{
	static const ImWchar ranges[] =
	{
		0x0020, 0x00FF, // Basic Latin + Latin Supplement
		0x0400, 0x052F, // Cyrillic + Cyrillic Supplement
		0x2DE0, 0x2DFF, // Cyrillic Extended-A
		0xA640, 0xA69F, // Cyrillic Extended-B
		0,
	};
	return &ranges[0];
}

const ImWchar*  ImFontAtlas::GetGlyphRangesThai()
{
	static const ImWchar ranges[] =
	{
		0x0020, 0x00FF, // Basic Latin
		0x2010, 0x205E, // Punctuations
		0x0E00, 0x0E7F, // Thai
		0,
	};
	return &ranges[0];
}

const ImWchar*  ImFontAtlas::GetGlyphRangesVietnamese()
{
	static const ImWchar ranges[] =
	{
		0x0020, 0x00FF, // Basic Latin
		0x0102, 0x0103,
		0x0110, 0x0111,
		0x0128, 0x0129,
		0x0168, 0x0169,
		0x01A0, 0x01A1,
		0x01AF, 0x01B0,
		0x1EA0, 0x1EF9,
		0,
	};
	return &ranges[0];
}

//-----------------------------------------------------------------------------
// [SECTION] ImFontGlyphRangesBuilder
//-----------------------------------------------------------------------------

void ImFontGlyphRangesBuilder::AddText( const char* text, const char* text_end )
{
	while( text_end ? ( text < text_end ) : *text )
	{
		unsigned int c = 0;
		int c_len = ImTextCharFromUtf8( &c, text, text_end );
		text += c_len;
		if( c_len == 0 )
		{
			break;
		}
		if( c < 0x10000 )
		{
			AddChar( ( ImWchar )c );
		}
	}
}

void ImFontGlyphRangesBuilder::AddRanges( const ImWchar* ranges )
{
	for( ; ranges[0]; ranges += 2 )
		for( ImWchar c = ranges[0]; c <= ranges[1]; c++ )
		{
			AddChar( c );
		}
}

void ImFontGlyphRangesBuilder::BuildRanges( ImVector<ImWchar>* out_ranges )
{
	int max_codepoint = 0x10000;
	for( int n = 0; n < max_codepoint; n++ )
		if( GetBit( n ) )
		{
			out_ranges->push_back( ( ImWchar )n );
			while( n < max_codepoint - 1 && GetBit( n + 1 ) )
			{
				n++;
			}
			out_ranges->push_back( ( ImWchar )n );
		}
	out_ranges->push_back( 0 );
}

//-----------------------------------------------------------------------------
// [SECTION] ImFont
//-----------------------------------------------------------------------------

ImFont::ImFont()
{
	FontSize = 0.0f;
	FallbackAdvanceX = 0.0f;
	FallbackChar = ( ImWchar )'?';
	EllipsisChar = ( ImWchar ) - 1;
	DisplayOffset = ImVec2( 0.0f, 0.0f );
	FallbackGlyph = NULL;
	ContainerAtlas = NULL;
	ConfigData = NULL;
	ConfigDataCount = 0;
	DirtyLookupTables = false;
	Scale = 1.0f;
	Ascent = Descent = 0.0f;
	MetricsTotalSurface = 0;
}

ImFont::~ImFont()
{
	ClearOutputData();
}

void    ImFont::ClearOutputData()
{
	FontSize = 0.0f;
	FallbackAdvanceX = 0.0f;
	Glyphs.clear();
	IndexAdvanceX.clear();
	IndexLookup.clear();
	FallbackGlyph = NULL;
	ContainerAtlas = NULL;
	DirtyLookupTables = true;
	Ascent = Descent = 0.0f;
	MetricsTotalSurface = 0;
}

void ImFont::BuildLookupTable()
{
	int max_codepoint = 0;
	for( int i = 0; i != Glyphs.Size; i++ )
	{
		max_codepoint = ImMax( max_codepoint, ( int )Glyphs[i].Codepoint );
	}

	IM_ASSERT( Glyphs.Size < 0xFFFF ); // -1 is reserved
	IndexAdvanceX.clear();
	IndexLookup.clear();
	DirtyLookupTables = false;
	GrowIndex( max_codepoint + 1 );
	for( int i = 0; i < Glyphs.Size; i++ )
	{
		int codepoint = ( int )Glyphs[i].Codepoint;
		IndexAdvanceX[codepoint] = Glyphs[i].AdvanceX;
		IndexLookup[codepoint] = ( ImWchar )i;
	}

	// Create a glyph to handle TAB
	// FIXME: Needs proper TAB handling but it needs to be contextualized (or we could arbitrary say that each string starts at "column 0" ?)
	if( FindGlyph( ( ImWchar )' ' ) )
	{
		if( Glyphs.back().Codepoint != '\t' )  // So we can call this function multiple times
		{
			Glyphs.resize( Glyphs.Size + 1 );
		}
		ImFontGlyph& tab_glyph = Glyphs.back();
		tab_glyph = *FindGlyph( ( ImWchar )' ' );
		tab_glyph.Codepoint = '\t';
		tab_glyph.AdvanceX *= IM_TABSIZE;
		IndexAdvanceX[( int )tab_glyph.Codepoint] = ( float )tab_glyph.AdvanceX;
		IndexLookup[( int )tab_glyph.Codepoint] = ( ImWchar )( Glyphs.Size - 1 );
	}

	FallbackGlyph = FindGlyphNoFallback( FallbackChar );
	FallbackAdvanceX = FallbackGlyph ? FallbackGlyph->AdvanceX : 0.0f;
	for( int i = 0; i < max_codepoint + 1; i++ )
		if( IndexAdvanceX[i] < 0.0f )
		{
			IndexAdvanceX[i] = FallbackAdvanceX;
		}
}

void ImFont::SetFallbackChar( ImWchar c )
{
	FallbackChar = c;
	BuildLookupTable();
}

void ImFont::GrowIndex( int new_size )
{
	IM_ASSERT( IndexAdvanceX.Size == IndexLookup.Size );
	if( new_size <= IndexLookup.Size )
	{
		return;
	}
	IndexAdvanceX.resize( new_size, -1.0f );
	IndexLookup.resize( new_size, ( ImWchar ) - 1 );
}

// x0/y0/x1/y1 are offset from the character upper-left layout position, in pixels. Therefore x0/y0 are often fairly close to zero.
// Not to be mistaken with texture coordinates, which are held by u0/v0/u1/v1 in normalized format (0.0..1.0 on each texture axis).
void ImFont::AddGlyph( ImWchar codepoint, float x0, float y0, float x1, float y1, float u0, float v0, float u1, float v1, float advance_x )
{
	Glyphs.resize( Glyphs.Size + 1 );
	ImFontGlyph& glyph = Glyphs.back();
	glyph.Codepoint = ( ImWchar )codepoint;
	glyph.X0 = x0;
	glyph.Y0 = y0;
	glyph.X1 = x1;
	glyph.Y1 = y1;
	glyph.U0 = u0;
	glyph.V0 = v0;
	glyph.U1 = u1;
	glyph.V1 = v1;
	glyph.AdvanceX = advance_x + ConfigData->GlyphExtraSpacing.x;  // Bake spacing into AdvanceX

	if( ConfigData->PixelSnapH )
	{
		glyph.AdvanceX = ( float )( int )( glyph.AdvanceX + 0.5f );
	}

	// Compute rough surface usage metrics (+1 to account for average padding, +0.99 to round)
	DirtyLookupTables = true;
	MetricsTotalSurface += ( int )( ( glyph.U1 - glyph.U0 ) * ContainerAtlas->TexWidth + 1.99f ) * ( int )( ( glyph.V1 - glyph.V0 ) * ContainerAtlas->TexHeight + 1.99f );
}

void ImFont::AddRemapChar( ImWchar dst, ImWchar src, bool overwrite_dst )
{
	IM_ASSERT( IndexLookup.Size > 0 );  // Currently this can only be called AFTER the font has been built, aka after calling ImFontAtlas::GetTexDataAs*() function.
	int index_size = IndexLookup.Size;

	if( dst < index_size && IndexLookup.Data[dst] == ( ImWchar ) - 1 && !overwrite_dst ) // 'dst' already exists
	{
		return;
	}
	if( src >= index_size && dst >= index_size ) // both 'dst' and 'src' don't exist -> no-op
	{
		return;
	}

	GrowIndex( dst + 1 );
	IndexLookup[dst] = ( src < index_size ) ? IndexLookup.Data[src] : ( ImWchar ) - 1;
	IndexAdvanceX[dst] = ( src < index_size ) ? IndexAdvanceX.Data[src] : 1.0f;
}

const ImFontGlyph* ImFont::FindGlyph( ImWchar c ) const
{
	if( c >= IndexLookup.Size )
	{
		return FallbackGlyph;
	}
	const ImWchar i = IndexLookup.Data[c];
	if( i == ( ImWchar ) - 1 )
	{
		return FallbackGlyph;
	}
	return &Glyphs.Data[i];
}

const ImFontGlyph* ImFont::FindGlyphNoFallback( ImWchar c ) const
{
	if( c >= IndexLookup.Size )
	{
		return NULL;
	}
	const ImWchar i = IndexLookup.Data[c];
	if( i == ( ImWchar ) - 1 )
	{
		return NULL;
	}
	return &Glyphs.Data[i];
}

const char* ImFont::CalcWordWrapPositionA( float scale, const char* text, const char* text_end, float wrap_width ) const
{
	// Simple word-wrapping for English, not full-featured. Please submit failing cases!
	// FIXME: Much possible improvements (don't cut things like "word !", "word!!!" but cut within "word,,,,", more sensible support for punctuations, support for Unicode punctuations, etc.)

	// For references, possible wrap point marked with ^
	//  "aaa bbb, ccc,ddd. eee   fff. ggg!"
	//      ^    ^    ^   ^   ^__    ^    ^

	// List of hardcoded separators: .,;!?'"

	// Skip extra blanks after a line returns (that includes not counting them in width computation)
	// e.g. "Hello    world" --> "Hello" "World"

	// Cut words that cannot possibly fit within one line.
	// e.g.: "The tropical fish" with ~5 characters worth of width --> "The tr" "opical" "fish"

	float line_width = 0.0f;
	float word_width = 0.0f;
	float blank_width = 0.0f;
	wrap_width /= scale; // We work with unscaled widths to avoid scaling every characters

	const char* word_end = text;
	const char* prev_word_end = NULL;
	bool inside_word = true;

	const char* s = text;
	while( s < text_end )
	{
		unsigned int c = ( unsigned int ) * s;
		const char* next_s;
		if( c < 0x80 )
		{
			next_s = s + 1;
		}
		else
		{
			next_s = s + ImTextCharFromUtf8( &c, s, text_end );
		}
		if( c == 0 )
		{
			break;
		}

		if( c < 32 )
		{
			if( c == '\n' )
			{
				line_width = word_width = blank_width = 0.0f;
				inside_word = true;
				s = next_s;
				continue;
			}
			if( c == '\r' )
			{
				s = next_s;
				continue;
			}
		}

		const float char_width = ( ( int )c < IndexAdvanceX.Size ? IndexAdvanceX.Data[c] : FallbackAdvanceX );
		if( ImCharIsBlankW( c ) )
		{
			if( inside_word )
			{
				line_width += blank_width;
				blank_width = 0.0f;
				word_end = s;
			}
			blank_width += char_width;
			inside_word = false;
		}
		else
		{
			word_width += char_width;
			if( inside_word )
			{
				word_end = next_s;
			}
			else
			{
				prev_word_end = word_end;
				line_width += word_width + blank_width;
				word_width = blank_width = 0.0f;
			}

			// Allow wrapping after punctuation.
			inside_word = !( c == '.' || c == ',' || c == ';' || c == '!' || c == '?' || c == '\"' );
		}

		// We ignore blank width at the end of the line (they can be skipped)
		if( line_width + word_width > wrap_width )
		{
			// Words that cannot possibly fit within an entire line will be cut anywhere.
			if( word_width < wrap_width )
			{
				s = prev_word_end ? prev_word_end : word_end;
			}
			break;
		}

		s = next_s;
	}

	return s;
}

ImVec2 ImFont::CalcTextSizeA( float size, float max_width, float wrap_width, const char* text_begin, const char* text_end, const char** remaining ) const
{
	if( !text_end )
	{
		text_end = text_begin + strlen( text_begin );    // FIXME-OPT: Need to avoid this.
	}

	const float line_height = size;
	const float scale = size / FontSize;

	ImVec2 text_size = ImVec2( 0, 0 );
	float line_width = 0.0f;

	const bool word_wrap_enabled = ( wrap_width > 0.0f );
	const char* word_wrap_eol = NULL;

	const char* s = text_begin;
	while( s < text_end )
	{
		if( word_wrap_enabled )
		{
			// Calculate how far we can render. Requires two passes on the string data but keeps the code simple and not intrusive for what's essentially an uncommon feature.
			if( !word_wrap_eol )
			{
				word_wrap_eol = CalcWordWrapPositionA( scale, s, text_end, wrap_width - line_width );
				if( word_wrap_eol == s ) // Wrap_width is too small to fit anything. Force displaying 1 character to minimize the height discontinuity.
				{
					word_wrap_eol++;    // +1 may not be a character start point in UTF-8 but it's ok because we use s >= word_wrap_eol below
				}
			}

			if( s >= word_wrap_eol )
			{
				if( text_size.x < line_width )
				{
					text_size.x = line_width;
				}
				text_size.y += line_height;
				line_width = 0.0f;
				word_wrap_eol = NULL;

				// Wrapping skips upcoming blanks
				while( s < text_end )
				{
					const char c = *s;
					if( ImCharIsBlankA( c ) )
					{
						s++;
					}
					else if( c == '\n' )
					{
						s++;
						break;
					}
					else
					{
						break;
					}
				}
				continue;
			}
		}

		// Decode and advance source
		const char* prev_s = s;
		unsigned int c = ( unsigned int ) * s;
		if( c < 0x80 )
		{
			s += 1;
		}
		else
		{
			s += ImTextCharFromUtf8( &c, s, text_end );
			if( c == 0 ) // Malformed UTF-8?
			{
				break;
			}
		}

		if( c < 32 )
		{
			if( c == '\n' )
			{
				text_size.x = ImMax( text_size.x, line_width );
				text_size.y += line_height;
				line_width = 0.0f;
				continue;
			}
			if( c == '\r' )
			{
				continue;
			}
		}

		const float char_width = ( ( int )c < IndexAdvanceX.Size ? IndexAdvanceX.Data[c] : FallbackAdvanceX ) * scale;
		if( line_width + char_width >= max_width )
		{
			s = prev_s;
			break;
		}

		line_width += char_width;
	}

	if( text_size.x < line_width )
	{
		text_size.x = line_width;
	}

	if( line_width > 0 || text_size.y == 0.0f )
	{
		text_size.y += line_height;
	}

	if( remaining )
	{
		*remaining = s;
	}

	return text_size;
}

void ImFont::RenderChar( ImDrawList* draw_list, float size, ImVec2 pos, ImU32 col, ImWchar c ) const
{
	if( c == ' ' || c == '\t' || c == '\n' || c == '\r' ) // Match behavior of RenderText(), those 4 codepoints are hard-coded.
	{
		return;
	}
	if( const ImFontGlyph* glyph = FindGlyph( c ) )
	{
		float scale = ( size >= 0.0f ) ? ( size / FontSize ) : 1.0f;
		pos.x = ( float )( int )pos.x + DisplayOffset.x;
		pos.y = ( float )( int )pos.y + DisplayOffset.y;
		draw_list->PrimReserve( 6, 4 );
		draw_list->PrimRectUV( ImVec2( pos.x + glyph->X0 * scale, pos.y + glyph->Y0 * scale ), ImVec2( pos.x + glyph->X1 * scale, pos.y + glyph->Y1 * scale ), ImVec2( glyph->U0, glyph->V0 ), ImVec2( glyph->U1, glyph->V1 ), col );
	}
}

void ImFont::RenderText( ImDrawList* draw_list, float size, ImVec2 pos, ImU32 col, const ImVec4& clip_rect, const char* text_begin, const char* text_end, float wrap_width, bool cpu_fine_clip ) const
{
	if( !text_end )
	{
		text_end = text_begin + strlen( text_begin );    // ImGui:: functions generally already provides a valid text_end, so this is merely to handle direct calls.
	}

	// Align to be pixel perfect
	pos.x = ( float )( int )pos.x + DisplayOffset.x;
	pos.y = ( float )( int )pos.y + DisplayOffset.y;
	float x = pos.x;
	float y = pos.y;
	if( y > clip_rect.w )
	{
		return;
	}

	const float scale = size / FontSize;
	const float line_height = FontSize * scale;
	const bool word_wrap_enabled = ( wrap_width > 0.0f );
	const char* word_wrap_eol = NULL;

	// Fast-forward to first visible line
	const char* s = text_begin;
	if( y + line_height < clip_rect.y && !word_wrap_enabled )
		while( y + line_height < clip_rect.y && s < text_end )
		{
			s = ( const char* )memchr( s, '\n', text_end - s );
			s = s ? s + 1 : text_end;
			y += line_height;
		}

	// For large text, scan for the last visible line in order to avoid over-reserving in the call to PrimReserve()
	// Note that very large horizontal line will still be affected by the issue (e.g. a one megabyte string buffer without a newline will likely crash atm)
	if( text_end - s > 10000 && !word_wrap_enabled )
	{
		const char* s_end = s;
		float y_end = y;
		while( y_end < clip_rect.w && s_end < text_end )
		{
			s_end = ( const char* )memchr( s_end, '\n', text_end - s_end );
			s_end = s_end ? s_end + 1 : text_end;
			y_end += line_height;
		}
		text_end = s_end;
	}
	if( s == text_end )
	{
		return;
	}

	// Reserve vertices for remaining worse case (over-reserving is useful and easily amortized)
	const int vtx_count_max = ( int )( text_end - s ) * 4;
	const int idx_count_max = ( int )( text_end - s ) * 6;
	const int idx_expected_size = draw_list->IdxBuffer.Size + idx_count_max;
	draw_list->PrimReserve( idx_count_max, vtx_count_max );

	ImDrawVert* vtx_write = draw_list->_VtxWritePtr;
	ImDrawIdx* idx_write = draw_list->_IdxWritePtr;
	unsigned int vtx_current_idx = draw_list->_VtxCurrentIdx;

	while( s < text_end )
	{
		if( word_wrap_enabled )
		{
			// Calculate how far we can render. Requires two passes on the string data but keeps the code simple and not intrusive for what's essentially an uncommon feature.
			if( !word_wrap_eol )
			{
				word_wrap_eol = CalcWordWrapPositionA( scale, s, text_end, wrap_width - ( x - pos.x ) );
				if( word_wrap_eol == s ) // Wrap_width is too small to fit anything. Force displaying 1 character to minimize the height discontinuity.
				{
					word_wrap_eol++;    // +1 may not be a character start point in UTF-8 but it's ok because we use s >= word_wrap_eol below
				}
			}

			if( s >= word_wrap_eol )
			{
				x = pos.x;
				y += line_height;
				word_wrap_eol = NULL;

				// Wrapping skips upcoming blanks
				while( s < text_end )
				{
					const char c = *s;
					if( ImCharIsBlankA( c ) )
					{
						s++;
					}
					else if( c == '\n' )
					{
						s++;
						break;
					}
					else
					{
						break;
					}
				}
				continue;
			}
		}

		// Decode and advance source
		unsigned int c = ( unsigned int ) * s;
		if( c < 0x80 )
		{
			s += 1;
		}
		else
		{
			s += ImTextCharFromUtf8( &c, s, text_end );
			if( c == 0 ) // Malformed UTF-8?
			{
				break;
			}
		}

		if( c < 32 )
		{
			if( c == '\n' )
			{
				x = pos.x;
				y += line_height;
				if( y > clip_rect.w )
				{
					break;    // break out of main loop
				}
				continue;
			}
			if( c == '\r' )
			{
				continue;
			}
		}

		float char_width = 0.0f;
		if( const ImFontGlyph* glyph = FindGlyph( ( ImWchar )c ) )
		{
			char_width = glyph->AdvanceX * scale;

			// Arbitrarily assume that both space and tabs are empty glyphs as an optimization
			if( c != ' ' && c != '\t' )
			{
				// We don't do a second finer clipping test on the Y axis as we've already skipped anything before clip_rect.y and exit once we pass clip_rect.w
				float x1 = x + glyph->X0 * scale;
				float x2 = x + glyph->X1 * scale;
				float y1 = y + glyph->Y0 * scale;
				float y2 = y + glyph->Y1 * scale;
				if( x1 <= clip_rect.z && x2 >= clip_rect.x )
				{
					// Render a character
					float u1 = glyph->U0;
					float v1 = glyph->V0;
					float u2 = glyph->U1;
					float v2 = glyph->V1;

					// CPU side clipping used to fit text in their frame when the frame is too small. Only does clipping for axis aligned quads.
					if( cpu_fine_clip )
					{
						if( x1 < clip_rect.x )
						{
							u1 = u1 + ( 1.0f - ( x2 - clip_rect.x ) / ( x2 - x1 ) ) * ( u2 - u1 );
							x1 = clip_rect.x;
						}
						if( y1 < clip_rect.y )
						{
							v1 = v1 + ( 1.0f - ( y2 - clip_rect.y ) / ( y2 - y1 ) ) * ( v2 - v1 );
							y1 = clip_rect.y;
						}
						if( x2 > clip_rect.z )
						{
							u2 = u1 + ( ( clip_rect.z - x1 ) / ( x2 - x1 ) ) * ( u2 - u1 );
							x2 = clip_rect.z;
						}
						if( y2 > clip_rect.w )
						{
							v2 = v1 + ( ( clip_rect.w - y1 ) / ( y2 - y1 ) ) * ( v2 - v1 );
							y2 = clip_rect.w;
						}
						if( y1 >= y2 )
						{
							x += char_width;
							continue;
						}
					}

					// We are NOT calling PrimRectUV() here because non-inlined causes too much overhead in a debug builds. Inlined here:
					{
						idx_write[0] = ( ImDrawIdx )( vtx_current_idx );
						idx_write[1] = ( ImDrawIdx )( vtx_current_idx + 1 );
						idx_write[2] = ( ImDrawIdx )( vtx_current_idx + 2 );
						idx_write[3] = ( ImDrawIdx )( vtx_current_idx );
						idx_write[4] = ( ImDrawIdx )( vtx_current_idx + 2 );
						idx_write[5] = ( ImDrawIdx )( vtx_current_idx + 3 );
						vtx_write[0].pos.x = x1;
						vtx_write[0].pos.y = y1;
						vtx_write[0].col = col;
						vtx_write[0].uv.x = u1;
						vtx_write[0].uv.y = v1;
						vtx_write[1].pos.x = x2;
						vtx_write[1].pos.y = y1;
						vtx_write[1].col = col;
						vtx_write[1].uv.x = u2;
						vtx_write[1].uv.y = v1;
						vtx_write[2].pos.x = x2;
						vtx_write[2].pos.y = y2;
						vtx_write[2].col = col;
						vtx_write[2].uv.x = u2;
						vtx_write[2].uv.y = v2;
						vtx_write[3].pos.x = x1;
						vtx_write[3].pos.y = y2;
						vtx_write[3].col = col;
						vtx_write[3].uv.x = u1;
						vtx_write[3].uv.y = v2;
						vtx_write += 4;
						vtx_current_idx += 4;
						idx_write += 6;
					}
				}
			}
		}

		x += char_width;
	}

	// Give back unused vertices
	draw_list->VtxBuffer.resize( ( int )( vtx_write - draw_list->VtxBuffer.Data ) );
	draw_list->IdxBuffer.resize( ( int )( idx_write - draw_list->IdxBuffer.Data ) );
	draw_list->CmdBuffer[draw_list->CmdBuffer.Size - 1].ElemCount -= ( idx_expected_size - draw_list->IdxBuffer.Size );
	draw_list->_VtxWritePtr = vtx_write;
	draw_list->_IdxWritePtr = idx_write;
	draw_list->_VtxCurrentIdx = vtx_current_idx;
}

//-----------------------------------------------------------------------------
// [SECTION] Internal Render Helpers
// (progressively moved from imgui.cpp to here when they are redesigned to stop accessing ImGui global state)
//-----------------------------------------------------------------------------
// - RenderMouseCursor()
// - RenderArrowPointingAt()
// - RenderRectFilledRangeH()
//-----------------------------------------------------------------------------

void ImGui::RenderMouseCursor( ImDrawList* draw_list, ImVec2 pos, float scale, ImGuiMouseCursor mouse_cursor, ImU32 col_fill, ImU32 col_border, ImU32 col_shadow )
{
	if( mouse_cursor == ImGuiMouseCursor_None )
	{
		return;
	}
	IM_ASSERT( mouse_cursor > ImGuiMouseCursor_None && mouse_cursor < ImGuiMouseCursor_COUNT );

	ImFontAtlas* font_atlas = draw_list->_Data->Font->ContainerAtlas;
	ImVec2 offset, size, uv[4];
	if( font_atlas->GetMouseCursorTexData( mouse_cursor, &offset, &size, &uv[0], &uv[2] ) )
	{
		pos -= offset;
		const ImTextureID tex_id = font_atlas->TexID;
		draw_list->PushTextureID( tex_id );
		draw_list->AddImage( tex_id, pos + ImVec2( 1, 0 )*scale, pos + ImVec2( 1, 0 )*scale + size * scale, uv[2], uv[3], col_shadow );
		draw_list->AddImage( tex_id, pos + ImVec2( 2, 0 )*scale, pos + ImVec2( 2, 0 )*scale + size * scale, uv[2], uv[3], col_shadow );
		draw_list->AddImage( tex_id, pos,                     pos + size * scale,                     uv[2], uv[3], col_border );
		draw_list->AddImage( tex_id, pos,                     pos + size * scale,                     uv[0], uv[1], col_fill );
		draw_list->PopTextureID();
	}
}

// Render an arrow. 'pos' is position of the arrow tip. half_sz.x is length from base to tip. half_sz.y is length on each side.
void ImGui::RenderArrowPointingAt( ImDrawList* draw_list, ImVec2 pos, ImVec2 half_sz, ImGuiDir direction, ImU32 col )
{
	switch( direction )
	{
		case ImGuiDir_Left:
			draw_list->AddTriangleFilled( ImVec2( pos.x + half_sz.x, pos.y - half_sz.y ), ImVec2( pos.x + half_sz.x, pos.y + half_sz.y ), pos, col );
			return;
		case ImGuiDir_Right:
			draw_list->AddTriangleFilled( ImVec2( pos.x - half_sz.x, pos.y + half_sz.y ), ImVec2( pos.x - half_sz.x, pos.y - half_sz.y ), pos, col );
			return;
		case ImGuiDir_Up:
			draw_list->AddTriangleFilled( ImVec2( pos.x + half_sz.x, pos.y + half_sz.y ), ImVec2( pos.x - half_sz.x, pos.y + half_sz.y ), pos, col );
			return;
		case ImGuiDir_Down:
			draw_list->AddTriangleFilled( ImVec2( pos.x - half_sz.x, pos.y - half_sz.y ), ImVec2( pos.x + half_sz.x, pos.y - half_sz.y ), pos, col );
			return;
		case ImGuiDir_None:
		case ImGuiDir_COUNT:
			break; // Fix warnings
	}
}

static inline float ImAcos01( float x )
{
	if( x <= 0.0f )
	{
		return IM_PI * 0.5f;
	}
	if( x >= 1.0f )
	{
		return 0.0f;
	}
	return ImAcos( x );
	//return (-0.69813170079773212f * x * x - 0.87266462599716477f) * x + 1.5707963267948966f; // Cheap approximation, may be enough for what we do.
}

// FIXME: Cleanup and move code to ImDrawList.
void ImGui::RenderRectFilledRangeH( ImDrawList* draw_list, const ImRect& rect, ImU32 col, float x_start_norm, float x_end_norm, float rounding )
{
	if( x_end_norm == x_start_norm )
	{
		return;
	}
	if( x_start_norm > x_end_norm )
	{
		ImSwap( x_start_norm, x_end_norm );
	}

	ImVec2 p0 = ImVec2( ImLerp( rect.Min.x, rect.Max.x, x_start_norm ), rect.Min.y );
	ImVec2 p1 = ImVec2( ImLerp( rect.Min.x, rect.Max.x, x_end_norm ), rect.Max.y );
	if( rounding == 0.0f )
	{
		draw_list->AddRectFilled( p0, p1, col, 0.0f );
		return;
	}

	rounding = ImClamp( ImMin( ( rect.Max.x - rect.Min.x ) * 0.5f, ( rect.Max.y - rect.Min.y ) * 0.5f ) - 1.0f, 0.0f, rounding );
	const float inv_rounding = 1.0f / rounding;
	const float arc0_b = ImAcos01( 1.0f - ( p0.x - rect.Min.x ) * inv_rounding );
	const float arc0_e = ImAcos01( 1.0f - ( p1.x - rect.Min.x ) * inv_rounding );
	const float half_pi = IM_PI * 0.5f; // We will == compare to this because we know this is the exact value ImAcos01 can return.
	const float x0 = ImMax( p0.x, rect.Min.x + rounding );
	if( arc0_b == arc0_e )
	{
		draw_list->PathLineTo( ImVec2( x0, p1.y ) );
		draw_list->PathLineTo( ImVec2( x0, p0.y ) );
	}
	else if( arc0_b == 0.0f && arc0_e == half_pi )
	{
		draw_list->PathArcToFast( ImVec2( x0, p1.y - rounding ), rounding, 3, 6 ); // BL
		draw_list->PathArcToFast( ImVec2( x0, p0.y + rounding ), rounding, 6, 9 ); // TR
	}
	else
	{
		draw_list->PathArcTo( ImVec2( x0, p1.y - rounding ), rounding, IM_PI - arc0_e, IM_PI - arc0_b, 3 ); // BL
		draw_list->PathArcTo( ImVec2( x0, p0.y + rounding ), rounding, IM_PI + arc0_b, IM_PI + arc0_e, 3 ); // TR
	}
	if( p1.x > rect.Min.x + rounding )
	{
		const float arc1_b = ImAcos01( 1.0f - ( rect.Max.x - p1.x ) * inv_rounding );
		const float arc1_e = ImAcos01( 1.0f - ( rect.Max.x - p0.x ) * inv_rounding );
		const float x1 = ImMin( p1.x, rect.Max.x - rounding );
		if( arc1_b == arc1_e )
		{
			draw_list->PathLineTo( ImVec2( x1, p0.y ) );
			draw_list->PathLineTo( ImVec2( x1, p1.y ) );
		}
		else if( arc1_b == 0.0f && arc1_e == half_pi )
		{
			draw_list->PathArcToFast( ImVec2( x1, p0.y + rounding ), rounding, 9, 12 ); // TR
			draw_list->PathArcToFast( ImVec2( x1, p1.y - rounding ), rounding, 0, 3 ); // BR
		}
		else
		{
			draw_list->PathArcTo( ImVec2( x1, p0.y + rounding ), rounding, -arc1_e, -arc1_b, 3 ); // TR
			draw_list->PathArcTo( ImVec2( x1, p1.y - rounding ), rounding, +arc1_b, +arc1_e, 3 ); // BR
		}
	}
	draw_list->PathFillConvex( col );
}

//-----------------------------------------------------------------------------
// [SECTION] Decompression code
//-----------------------------------------------------------------------------
// Compressed with stb_compress() then converted to a C array and encoded as base85.
// Use the program in misc/fonts/binary_to_compressed_c.cpp to create the array from a TTF file.
// The purpose of encoding as base85 instead of "0x00,0x01,..." style is only save on _source code_ size.
// Decompression from stb.h (public domain) by Sean Barrett https://github.com/nothings/stb/blob/master/stb.h
//-----------------------------------------------------------------------------

static unsigned int stb_decompress_length( const unsigned char* input )
{
	return ( input[8] << 24 ) + ( input[9] << 16 ) + ( input[10] << 8 ) + input[11];
}

static unsigned char* stb__barrier_out_e, *stb__barrier_out_b;
static const unsigned char* stb__barrier_in_b;
static unsigned char* stb__dout;
static void stb__match( const unsigned char* data, unsigned int length )
{
	// INVERSE of memmove... write each byte before copying the next...
	IM_ASSERT( stb__dout + length <= stb__barrier_out_e );
	if( stb__dout + length > stb__barrier_out_e )
	{
		stb__dout += length;
		return;
	}
	if( data < stb__barrier_out_b )
	{
		stb__dout = stb__barrier_out_e + 1;
		return;
	}
	while( length-- )
	{
		*stb__dout++ = *data++;
	}
}

static void stb__lit( const unsigned char* data, unsigned int length )
{
	IM_ASSERT( stb__dout + length <= stb__barrier_out_e );
	if( stb__dout + length > stb__barrier_out_e )
	{
		stb__dout += length;
		return;
	}
	if( data < stb__barrier_in_b )
	{
		stb__dout = stb__barrier_out_e + 1;
		return;
	}
	memcpy( stb__dout, data, length );
	stb__dout += length;
}

#define stb__in2(x)   ((i[x] << 8) + i[(x)+1])
#define stb__in3(x)   ((i[x] << 16) + stb__in2((x)+1))
#define stb__in4(x)   ((i[x] << 24) + stb__in3((x)+1))

static const unsigned char* stb_decompress_token( const unsigned char* i )
{
	if( *i >= 0x20 )  // use fewer if's for cases that expand small
	{
		if( *i >= 0x80 )
		{
			stb__match( stb__dout - i[1] - 1, i[0] - 0x80 + 1 ), i += 2;
		}
		else if( *i >= 0x40 )
		{
			stb__match( stb__dout - ( stb__in2( 0 ) - 0x4000 + 1 ), i[2] + 1 ), i += 3;
		}
		else /* *i >= 0x20 */
		{
			stb__lit( i + 1, i[0] - 0x20 + 1 ), i += 1 + ( i[0] - 0x20 + 1 );
		}
	}
	else     // more ifs for cases that expand large, since overhead is amortized
	{
		if( *i >= 0x18 )
		{
			stb__match( stb__dout - ( stb__in3( 0 ) - 0x180000 + 1 ), i[3] + 1 ), i += 4;
		}
		else if( *i >= 0x10 )
		{
			stb__match( stb__dout - ( stb__in3( 0 ) - 0x100000 + 1 ), stb__in2( 3 ) + 1 ), i += 5;
		}
		else if( *i >= 0x08 )
		{
			stb__lit( i + 2, stb__in2( 0 ) - 0x0800 + 1 ), i += 2 + ( stb__in2( 0 ) - 0x0800 + 1 );
		}
		else if( *i == 0x07 )
		{
			stb__lit( i + 3, stb__in2( 1 ) + 1 ), i += 3 + ( stb__in2( 1 ) + 1 );
		}
		else if( *i == 0x06 )
		{
			stb__match( stb__dout - ( stb__in3( 1 ) + 1 ), i[4] + 1 ), i += 5;
		}
		else if( *i == 0x04 )
		{
			stb__match( stb__dout - ( stb__in3( 1 ) + 1 ), stb__in2( 4 ) + 1 ), i += 6;
		}
	}
	return i;
}

static unsigned int stb_adler32( unsigned int adler32, unsigned char* buffer, unsigned int buflen )
{
	const unsigned long ADLER_MOD = 65521;
	unsigned long s1 = adler32 & 0xffff, s2 = adler32 >> 16;
	unsigned long blocklen, i;

	blocklen = buflen % 5552;
	while( buflen )
	{
		for( i = 0; i + 7 < blocklen; i += 8 )
		{
			s1 += buffer[0], s2 += s1;
			s1 += buffer[1], s2 += s1;
			s1 += buffer[2], s2 += s1;
			s1 += buffer[3], s2 += s1;
			s1 += buffer[4], s2 += s1;
			s1 += buffer[5], s2 += s1;
			s1 += buffer[6], s2 += s1;
			s1 += buffer[7], s2 += s1;

			buffer += 8;
		}

		for( ; i < blocklen; ++i )
		{
			s1 += *buffer++, s2 += s1;
		}

		s1 %= ADLER_MOD, s2 %= ADLER_MOD;
		buflen -= blocklen;
		blocklen = 5552;
	}
	return ( unsigned int )( s2 << 16 ) + ( unsigned int )s1;
}

static unsigned int stb_decompress( unsigned char* output, const unsigned char* i, unsigned int /*length*/ )
{
	unsigned int olen;
	if( stb__in4( 0 ) != 0x57bC0000 )
	{
		return 0;
	}
	if( stb__in4( 4 ) != 0 )
	{
		return 0;    // error! stream is > 4GB
	}
	olen = stb_decompress_length( i );
	stb__barrier_in_b = i;
	stb__barrier_out_e = output + olen;
	stb__barrier_out_b = output;
	i += 16;

	stb__dout = output;
	for( ;; )
	{
		const unsigned char* old_i = i;
		i = stb_decompress_token( i );
		if( i == old_i )
		{
			if( *i == 0x05 && i[1] == 0xfa )
			{
				IM_ASSERT( stb__dout == output + olen );
				if( stb__dout != output + olen )
				{
					return 0;
				}
				if( stb_adler32( 1, output, olen ) != ( unsigned int ) stb__in4( 2 ) )
				{
					return 0;
				}
				return olen;
			}
			else
			{
				IM_ASSERT( 0 ); /* NOTREACHED */
				return 0;
			}
		}
		IM_ASSERT( stb__dout <= output + olen );
		if( stb__dout > output + olen )
		{
			return 0;
		}
	}
}

//-----------------------------------------------------------------------------
// [SECTION] Default font data (ProggyClean.ttf)
//-----------------------------------------------------------------------------
// ProggyClean.ttf
// Copyright (c) 2004, 2005 Tristan Grimmer
// MIT license (see License.txt in http://www.upperbounds.net/download/ProggyClean.ttf.zip)
// Download and more information at http://upperbounds.net
//-----------------------------------------------------------------------------
// File: 'ProggyClean.ttf' (41208 bytes)
// Exported using misc/fonts/binary_to_compressed_c.cpp (with compression + base85 string encoding).
// The purpose of encoding as base85 instead of "0x00,0x01,..." style is only save on _source code_ size.
//-----------------------------------------------------------------------------
static const char proggy_clean_ttf_compressed_data_base85[11980 + 1] =
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static const char* GetDefaultCompressedFontDataTTFBase85()
{
	return proggy_clean_ttf_compressed_data_base85;
}
