Remove lots of dependencies

1 files changed, 0 insertions, 708 deletions

diff --git a/nanovg/nanovg.h b/nanovg/nanovg.h
deleted file mode 100644
index f32a175..0000000
--- a/nanovg/nanovg.h
+++ /dev/null
@@ -1,708 +0,0 @@
-//
-// Copyright (c) 2013 Mikko Mononen memon@inside.org
-//
-// This software is provided 'as-is', without any express or implied
-// warranty.  In no event will the authors be held liable for any damages
-// arising from the use of this software.
-// Permission is granted to anyone to use this software for any purpose,
-// including commercial applications, and to alter it and redistribute it
-// freely, subject to the following restrictions:
-// 1. The origin of this software must not be misrepresented; you must not
-//    claim that you wrote the original software. If you use this software
-//    in a product, an acknowledgment in the product documentation would be
-//    appreciated but is not required.
-// 2. Altered source versions must be plainly marked as such, and must not be
-//    misrepresented as being the original software.
-// 3. This notice may not be removed or altered from any source distribution.
-//
-
-#ifndef NANOVG_H_F380EB38_CDA3_11EA_AF53_BBD96082A0CB
-#define NANOVG_H_F380EB38_CDA3_11EA_AF53_BBD96082A0CB
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#define NVG_PI 3.14159265358979323846264338327f
-
-#ifdef _MSC_VER
-#pragma warning(push)
-#pragma warning(disable: 4201)  // nonstandard extension used : nameless struct/union
-#endif
-
-typedef struct NVGcontext NVGcontext;
-
-struct NVGcolor {
-	union {
-		float rgba[4];
-		struct {
-			float r,g,b,a;
-		};
-	};
-};
-typedef struct NVGcolor NVGcolor;
-
-struct NVGpaint {
-	float xform[6];
-	float extent[2];
-	float radius;
-	float feather;
-	NVGcolor innerColor;
-	NVGcolor outerColor;
-	int image;
-};
-typedef struct NVGpaint NVGpaint;
-
-enum NVGwinding {
-	NVG_CCW = 1,			// Winding for solid shapes
-	NVG_CW = 2,				// Winding for holes
-};
-
-enum NVGsolidity {
-	NVG_SOLID = 1,			// CCW
-	NVG_HOLE = 2,			// CW
-};
-
-enum NVGlineCap {
-	NVG_BUTT,
-	NVG_ROUND,
-	NVG_SQUARE,
-	NVG_BEVEL,
-	NVG_MITER,
-};
-
-enum NVGalign {
-	// Horizontal align
-	NVG_ALIGN_LEFT 		= 1<<0,	// Default, align text horizontally to left.
-	NVG_ALIGN_CENTER 	= 1<<1,	// Align text horizontally to center.
-	NVG_ALIGN_RIGHT 	= 1<<2,	// Align text horizontally to right.
-	// Vertical align
-	NVG_ALIGN_TOP 		= 1<<3,	// Align text vertically to top.
-	NVG_ALIGN_MIDDLE	= 1<<4,	// Align text vertically to middle.
-	NVG_ALIGN_BOTTOM	= 1<<5,	// Align text vertically to bottom.
-	NVG_ALIGN_BASELINE	= 1<<6, // Default, align text vertically to baseline.
-};
-
-enum NVGblendFactor {
-	NVG_ZERO = 1<<0,
-	NVG_ONE = 1<<1,
-	NVG_SRC_COLOR = 1<<2,
-	NVG_ONE_MINUS_SRC_COLOR = 1<<3,
-	NVG_DST_COLOR = 1<<4,
-	NVG_ONE_MINUS_DST_COLOR = 1<<5,
-	NVG_SRC_ALPHA = 1<<6,
-	NVG_ONE_MINUS_SRC_ALPHA = 1<<7,
-	NVG_DST_ALPHA = 1<<8,
-	NVG_ONE_MINUS_DST_ALPHA = 1<<9,
-	NVG_SRC_ALPHA_SATURATE = 1<<10,
-};
-
-enum NVGcompositeOperation {
-	NVG_SOURCE_OVER,
-	NVG_SOURCE_IN,
-	NVG_SOURCE_OUT,
-	NVG_ATOP,
-	NVG_DESTINATION_OVER,
-	NVG_DESTINATION_IN,
-	NVG_DESTINATION_OUT,
-	NVG_DESTINATION_ATOP,
-	NVG_LIGHTER,
-	NVG_COPY,
-	NVG_XOR,
-};
-
-struct NVGcompositeOperationState {
-	int srcRGB;
-	int dstRGB;
-	int srcAlpha;
-	int dstAlpha;
-};
-typedef struct NVGcompositeOperationState NVGcompositeOperationState;
-
-struct NVGglyphPosition {
-	const char* str;	// Position of the glyph in the input string.
-	float x;			// The x-coordinate of the logical glyph position.
-	float minx, maxx;	// The bounds of the glyph shape.
-};
-typedef struct NVGglyphPosition NVGglyphPosition;
-
-struct NVGtextRow {
-	const char* start;	// Pointer to the input text where the row starts.
-	const char* end;	// Pointer to the input text where the row ends (one past the last character).
-	const char* next;	// Pointer to the beginning of the next row.
-	float width;		// Logical width of the row.
-	float minx, maxx;	// Actual bounds of the row. Logical with and bounds can differ because of kerning and some parts over extending.
-};
-typedef struct NVGtextRow NVGtextRow;
-
-enum NVGimageFlags {
-    NVG_IMAGE_GENERATE_MIPMAPS	= 1<<0,     // Generate mipmaps during creation of the image.
-	NVG_IMAGE_REPEATX			= 1<<1,		// Repeat image in X direction.
-	NVG_IMAGE_REPEATY			= 1<<2,		// Repeat image in Y direction.
-	NVG_IMAGE_FLIPY				= 1<<3,		// Flips (inverses) image in Y direction when rendered.
-	NVG_IMAGE_PREMULTIPLIED		= 1<<4,		// Image data has premultiplied alpha.
-	NVG_IMAGE_NEAREST			= 1<<5,		// Image interpolation is Nearest instead Linear
-};
-
-// Begin drawing a new frame
-// Calls to nanovg drawing API should be wrapped in nvgBeginFrame() & nvgEndFrame()
-// nvgBeginFrame() defines the size of the window to render to in relation currently
-// set viewport (i.e. glViewport on GL backends). Device pixel ration allows to
-// control the rendering on Hi-DPI devices.
-// For example, GLFW returns two dimension for an opened window: window size and
-// frame buffer size. In that case you would set windowWidth/Height to the window size
-// devicePixelRatio to: frameBufferWidth / windowWidth.
-void nvgBeginFrame(NVGcontext* ctx, float windowWidth, float windowHeight, float devicePixelRatio);
-
-// Cancels drawing the current frame.
-void nvgCancelFrame(NVGcontext* ctx);
-
-// Ends drawing flushing remaining render state.
-void nvgEndFrame(NVGcontext* ctx);
-
-//
-// Composite operation
-//
-// The composite operations in NanoVG are modeled after HTML Canvas API, and
-// the blend func is based on OpenGL (see corresponding manuals for more info).
-// The colors in the blending state have premultiplied alpha.
-
-// Sets the composite operation. The op parameter should be one of NVGcompositeOperation.
-void nvgGlobalCompositeOperation(NVGcontext* ctx, int op);
-
-// Sets the composite operation with custom pixel arithmetic. The parameters should be one of NVGblendFactor.
-void nvgGlobalCompositeBlendFunc(NVGcontext* ctx, int sfactor, int dfactor);
-
-// Sets the composite operation with custom pixel arithmetic for RGB and alpha components separately. The parameters should be one of NVGblendFactor.
-void nvgGlobalCompositeBlendFuncSeparate(NVGcontext* ctx, int srcRGB, int dstRGB, int srcAlpha, int dstAlpha);
-
-//
-// Color utils
-//
-// Colors in NanoVG are stored as unsigned ints in ABGR format.
-
-// Returns a color value from red, green, blue values. Alpha will be set to 255 (1.0f).
-NVGcolor nvgRGB(unsigned char r, unsigned char g, unsigned char b);
-
-// Returns a color value from red, green, blue values. Alpha will be set to 1.0f.
-NVGcolor nvgRGBf(float r, float g, float b);
-
-
-// Returns a color value from red, green, blue and alpha values.
-NVGcolor nvgRGBA(unsigned char r, unsigned char g, unsigned char b, unsigned char a);
-
-// Returns a color value from red, green, blue and alpha values.
-NVGcolor nvgRGBAf(float r, float g, float b, float a);
-
-
-// Linearly interpolates from color c0 to c1, and returns resulting color value.
-NVGcolor nvgLerpRGBA(NVGcolor c0, NVGcolor c1, float u);
-
-// Sets transparency of a color value.
-NVGcolor nvgTransRGBA(NVGcolor c0, unsigned char a);
-
-// Sets transparency of a color value.
-NVGcolor nvgTransRGBAf(NVGcolor c0, float a);
-
-// Returns color value specified by hue, saturation and lightness.
-// HSL values are all in range [0..1], alpha will be set to 255.
-NVGcolor nvgHSL(float h, float s, float l);
-
-// Returns color value specified by hue, saturation and lightness and alpha.
-// HSL values are all in range [0..1], alpha in range [0..255]
-NVGcolor nvgHSLA(float h, float s, float l, unsigned char a);
-
-//
-// State Handling
-//
-// NanoVG contains state which represents how paths will be rendered.
-// The state contains transform, fill and stroke styles, text and font styles,
-// and scissor clipping.
-
-// Pushes and saves the current render state into a state stack.
-// A matching nvgRestore() must be used to restore the state.
-void nvgSave(NVGcontext* ctx);
-
-// Pops and restores current render state.
-void nvgRestore(NVGcontext* ctx);
-
-// Resets current render state to default values. Does not affect the render state stack.
-void nvgReset(NVGcontext* ctx);
-
-//
-// Render styles
-//
-// Fill and stroke render style can be either a solid color or a paint which is a gradient or a pattern.
-// Solid color is simply defined as a color value, different kinds of paints can be created
-// using nvgLinearGradient(), nvgBoxGradient(), nvgRadialGradient() and nvgImagePattern().
-//
-// Current render style can be saved and restored using nvgSave() and nvgRestore().
-
-// Sets whether to draw antialias for nvgStroke() and nvgFill(). It's enabled by default.
-void nvgShapeAntiAlias(NVGcontext* ctx, int enabled);
-
-// Sets current stroke style to a solid color.
-void nvgStrokeColor(NVGcontext* ctx, NVGcolor color);
-
-// Sets current stroke style to a paint, which can be a one of the gradients or a pattern.
-void nvgStrokePaint(NVGcontext* ctx, NVGpaint paint);
-
-// Sets current fill style to a solid color.
-void nvgFillColor(NVGcontext* ctx, NVGcolor color);
-
-// Sets current fill style to a paint, which can be a one of the gradients or a pattern.
-void nvgFillPaint(NVGcontext* ctx, NVGpaint paint);
-
-// Sets the miter limit of the stroke style.
-// Miter limit controls when a sharp corner is beveled.
-void nvgMiterLimit(NVGcontext* ctx, float limit);
-
-// Sets the stroke width of the stroke style.
-void nvgStrokeWidth(NVGcontext* ctx, float size);
-
-// Sets how the end of the line (cap) is drawn,
-// Can be one of: NVG_BUTT (default), NVG_ROUND, NVG_SQUARE.
-void nvgLineCap(NVGcontext* ctx, int cap);
-
-// Sets how sharp path corners are drawn.
-// Can be one of NVG_MITER (default), NVG_ROUND, NVG_BEVEL.
-void nvgLineJoin(NVGcontext* ctx, int join);
-
-// Sets the transparency applied to all rendered shapes.
-// Already transparent paths will get proportionally more transparent as well.
-void nvgGlobalAlpha(NVGcontext* ctx, float alpha);
-
-//
-// Transforms
-//
-// The paths, gradients, patterns and scissor region are transformed by an transformation
-// matrix at the time when they are passed to the API.
-// The current transformation matrix is a affine matrix:
-//   [sx kx tx]
-//   [ky sy ty]
-//   [ 0  0  1]
-// Where: sx,sy define scaling, kx,ky skewing, and tx,ty translation.
-// The last row is assumed to be 0,0,1 and is not stored.
-//
-// Apart from nvgResetTransform(), each transformation function first creates
-// specific transformation matrix and pre-multiplies the current transformation by it.
-//
-// Current coordinate system (transformation) can be saved and restored using nvgSave() and nvgRestore().
-
-// Resets current transform to a identity matrix.
-void nvgResetTransform(NVGcontext* ctx);
-
-// Premultiplies current coordinate system by specified matrix.
-// The parameters are interpreted as matrix as follows:
-//   [a c e]
-//   [b d f]
-//   [0 0 1]
-void nvgTransform(NVGcontext* ctx, float a, float b, float c, float d, float e, float f);
-
-// Translates current coordinate system.
-void nvgTranslate(NVGcontext* ctx, float x, float y);
-
-// Rotates current coordinate system. Angle is specified in radians.
-void nvgRotate(NVGcontext* ctx, float angle);
-
-// Skews the current coordinate system along X axis. Angle is specified in radians.
-void nvgSkewX(NVGcontext* ctx, float angle);
-
-// Skews the current coordinate system along Y axis. Angle is specified in radians.
-void nvgSkewY(NVGcontext* ctx, float angle);
-
-// Scales the current coordinate system.
-void nvgScale(NVGcontext* ctx, float x, float y);
-
-// Stores the top part (a-f) of the current transformation matrix in to the specified buffer.
-//   [a c e]
-//   [b d f]
-//   [0 0 1]
-// There should be space for 6 floats in the return buffer for the values a-f.
-void nvgCurrentTransform(NVGcontext* ctx, float* xform);
-
-
-// The following functions can be used to make calculations on 2x3 transformation matrices.
-// A 2x3 matrix is represented as float[6].
-
-// Sets the transform to identity matrix.
-void nvgTransformIdentity(float* dst);
-
-// Sets the transform to translation matrix matrix.
-void nvgTransformTranslate(float* dst, float tx, float ty);
-
-// Sets the transform to scale matrix.
-void nvgTransformScale(float* dst, float sx, float sy);
-
-// Sets the transform to rotate matrix. Angle is specified in radians.
-void nvgTransformRotate(float* dst, float a);
-
-// Sets the transform to skew-x matrix. Angle is specified in radians.
-void nvgTransformSkewX(float* dst, float a);
-
-// Sets the transform to skew-y matrix. Angle is specified in radians.
-void nvgTransformSkewY(float* dst, float a);
-
-// Sets the transform to the result of multiplication of two transforms, of A = A*B.
-void nvgTransformMultiply(float* dst, const float* src);
-
-// Sets the transform to the result of multiplication of two transforms, of A = B*A.
-void nvgTransformPremultiply(float* dst, const float* src);
-
-// Sets the destination to inverse of specified transform.
-// Returns 1 if the inverse could be calculated, else 0.
-int nvgTransformInverse(float* dst, const float* src);
-
-// Transform a point by given transform.
-void nvgTransformPoint(float* dstx, float* dsty, const float* xform, float srcx, float srcy);
-
-// Converts degrees to radians and vice versa.
-float nvgDegToRad(float deg);
-float nvgRadToDeg(float rad);
-
-//
-// Images
-//
-// NanoVG allows you to load jpg, png, psd, tga, pic and gif files to be used for rendering.
-// In addition you can upload your own image. The image loading is provided by stb_image.
-// The parameter imageFlags is combination of flags defined in NVGimageFlags.
-
-// Creates image by loading it from the disk from specified file name.
-// Returns handle to the image.
-int nvgCreateImage(NVGcontext* ctx, const char* filename, int imageFlags);
-
-// Creates image by loading it from the specified chunk of memory.
-// Returns handle to the image.
-int nvgCreateImageMem(NVGcontext* ctx, int imageFlags, unsigned char* data, int ndata);
-
-// Creates image from specified image data.
-// Returns handle to the image.
-int nvgCreateImageRGBA(NVGcontext* ctx, int w, int h, int imageFlags, const unsigned char* data);
-
-int nvgCreateImageAlpha(NVGcontext* ctx, int w, int h, int imageFlags, const unsigned char* data);
-
-// Updates image data specified by image handle.
-void nvgUpdateImage(NVGcontext* ctx, int image, const unsigned char* data);
-
-// Returns the dimensions of a created image.
-void nvgImageSize(NVGcontext* ctx, int image, int* w, int* h);
-
-// Deletes created image.
-void nvgDeleteImage(NVGcontext* ctx, int image);
-
-//
-// Paints
-//
-// NanoVG supports four types of paints: linear gradient, box gradient, radial gradient and image pattern.
-// These can be used as paints for strokes and fills.
-
-// Creates and returns a linear gradient. Parameters (sx,sy)-(ex,ey) specify the start and end coordinates
-// of the linear gradient, icol specifies the start color and ocol the end color.
-// The gradient is transformed by the current transform when it is passed to nvgFillPaint() or nvgStrokePaint().
-NVGpaint nvgLinearGradient(NVGcontext* ctx, float sx, float sy, float ex, float ey,
-						   NVGcolor icol, NVGcolor ocol);
-
-// Creates and returns a box gradient. Box gradient is a feathered rounded rectangle, it is useful for rendering
-// drop shadows or highlights for boxes. Parameters (x,y) define the top-left corner of the rectangle,
-// (w,h) define the size of the rectangle, r defines the corner radius, and f feather. Feather defines how blurry
-// the border of the rectangle is. Parameter icol specifies the inner color and ocol the outer color of the gradient.
-// The gradient is transformed by the current transform when it is passed to nvgFillPaint() or nvgStrokePaint().
-NVGpaint nvgBoxGradient(NVGcontext* ctx, float x, float y, float w, float h,
-						float r, float f, NVGcolor icol, NVGcolor ocol);
-
-// Creates and returns a radial gradient. Parameters (cx,cy) specify the center, inr and outr specify
-// the inner and outer radius of the gradient, icol specifies the start color and ocol the end color.
-// The gradient is transformed by the current transform when it is passed to nvgFillPaint() or nvgStrokePaint().
-NVGpaint nvgRadialGradient(NVGcontext* ctx, float cx, float cy, float inr, float outr,
-						   NVGcolor icol, NVGcolor ocol);
-
-// Creates and returns an image pattern. Parameters (ox,oy) specify the left-top location of the image pattern,
-// (ex,ey) the size of one image, angle rotation around the top-left corner, image is handle to the image to render.
-// The gradient is transformed by the current transform when it is passed to nvgFillPaint() or nvgStrokePaint().
-NVGpaint nvgImagePattern(NVGcontext* ctx, float ox, float oy, float ex, float ey,
-						 float angle, int image, float alpha);
-
-//
-// Scissoring
-//
-// Scissoring allows you to clip the rendering into a rectangle. This is useful for various
-// user interface cases like rendering a text edit or a timeline.
-
-// Sets the current scissor rectangle.
-// The scissor rectangle is transformed by the current transform.
-void nvgScissor(NVGcontext* ctx, float x, float y, float w, float h);
-
-// Intersects current scissor rectangle with the specified rectangle.
-// The scissor rectangle is transformed by the current transform.
-// Note: in case the rotation of previous scissor rect differs from
-// the current one, the intersection will be done between the specified
-// rectangle and the previous scissor rectangle transformed in the current
-// transform space. The resulting shape is always rectangle.
-void nvgIntersectScissor(NVGcontext* ctx, float x, float y, float w, float h);
-
-// Reset and disables scissoring.
-void nvgResetScissor(NVGcontext* ctx);
-
-//
-// Paths
-//
-// Drawing a new shape starts with nvgBeginPath(), it clears all the currently defined paths.
-// Then you define one or more paths and sub-paths which describe the shape. The are functions
-// to draw common shapes like rectangles and circles, and lower level step-by-step functions,
-// which allow to define a path curve by curve.
-//
-// NanoVG uses even-odd fill rule to draw the shapes. Solid shapes should have counter clockwise
-// winding and holes should have counter clockwise order. To specify winding of a path you can
-// call nvgPathWinding(). This is useful especially for the common shapes, which are drawn CCW.
-//
-// Finally you can fill the path using current fill style by calling nvgFill(), and stroke it
-// with current stroke style by calling nvgStroke().
-//
-// The curve segments and sub-paths are transformed by the current transform.
-
-// Clears the current path and sub-paths.
-void nvgBeginPath(NVGcontext* ctx);
-
-// Starts new sub-path with specified point as first point.
-void nvgMoveTo(NVGcontext* ctx, float x, float y);
-
-// Adds line segment from the last point in the path to the specified point.
-void nvgLineTo(NVGcontext* ctx, float x, float y);
-
-// Adds cubic bezier segment from last point in the path via two control points to the specified point.
-void nvgBezierTo(NVGcontext* ctx, float c1x, float c1y, float c2x, float c2y, float x, float y);
-
-// Adds quadratic bezier segment from last point in the path via a control point to the specified point.
-void nvgQuadTo(NVGcontext* ctx, float cx, float cy, float x, float y);
-
-// Adds an arc segment at the corner defined by the last path point, and two specified points.
-void nvgArcTo(NVGcontext* ctx, float x1, float y1, float x2, float y2, float radius);
-
-// Closes current sub-path with a line segment.
-void nvgClosePath(NVGcontext* ctx);
-
-// Sets the current sub-path winding, see NVGwinding and NVGsolidity.
-void nvgPathWinding(NVGcontext* ctx, int dir);
-
-// Creates new circle arc shaped sub-path. The arc center is at cx,cy, the arc radius is r,
-// and the arc is drawn from angle a0 to a1, and swept in direction dir (NVG_CCW, or NVG_CW).
-// Angles are specified in radians.
-void nvgArc(NVGcontext* ctx, float cx, float cy, float r, float a0, float a1, int dir);
-
-void nvgBarc(NVGcontext* ctx, float cx, float cy, float r, float a0, float a1, int dir, int join);
-
-// Creates new rectangle shaped sub-path.
-void nvgRect(NVGcontext* ctx, float x, float y, float w, float h);
-
-// Creates new rounded rectangle shaped sub-path.
-void nvgRoundedRect(NVGcontext* ctx, float x, float y, float w, float h, float r);
-
-// Creates new rounded rectangle shaped sub-path with varying radii for each corner.
-void nvgRoundedRectVarying(NVGcontext* ctx, float x, float y, float w, float h, float radTopLeft, float radTopRight, float radBottomRight, float radBottomLeft);
-
-// Creates new ellipse shaped sub-path.
-void nvgEllipse(NVGcontext* ctx, float cx, float cy, float rx, float ry);
-
-// Creates new circle shaped sub-path.
-void nvgCircle(NVGcontext* ctx, float cx, float cy, float r);
-
-// Fills the current path with current fill style.
-void nvgFill(NVGcontext* ctx);
-
-// Fills the current path with current stroke style.
-void nvgStroke(NVGcontext* ctx);
-
-
-//
-// Text
-//
-// NanoVG allows you to load .ttf files and use the font to render text.
-//
-// The appearance of the text can be defined by setting the current text style
-// and by specifying the fill color. Common text and font settings such as
-// font size, letter spacing and text align are supported. Font blur allows you
-// to create simple text effects such as drop shadows.
-//
-// At render time the font face can be set based on the font handles or name.
-//
-// Font measure functions return values in local space, the calculations are
-// carried in the same resolution as the final rendering. This is done because
-// the text glyph positions are snapped to the nearest pixels sharp rendering.
-//
-// The local space means that values are not rotated or scale as per the current
-// transformation. For example if you set font size to 12, which would mean that
-// line height is 16, then regardless of the current scaling and rotation, the
-// returned line height is always 16. Some measures may vary because of the scaling
-// since aforementioned pixel snapping.
-//
-// While this may sound a little odd, the setup allows you to always render the
-// same way regardless of scaling. I.e. following works regardless of scaling:
-//
-//		const char* txt = "Text me up.";
-//		nvgTextBounds(vg, x,y, txt, NULL, bounds);
-//		nvgBeginPath(vg);
-//		nvgRoundedRect(vg, bounds[0],bounds[1], bounds[2]-bounds[0], bounds[3]-bounds[1]);
-//		nvgFill(vg);
-//
-// Note: currently only solid color fill is supported for text.
-
-// Creates font by loading it from the disk from specified file name.
-// Returns handle to the font.
-int nvgCreateFont(NVGcontext* ctx, const char* name, const char* filename);
-
-// fontIndex specifies which font face to load from a .ttf/.ttc file.
-int nvgCreateFontAtIndex(NVGcontext* ctx, const char* name, const char* filename, const int fontIndex);
-
-// Creates font by loading it from the specified memory chunk.
-// Returns handle to the font.
-int nvgCreateFontMem(NVGcontext* ctx, const char* name, unsigned char* data, int ndata, int freeData);
-
-// fontIndex specifies which font face to load from a .ttf/.ttc file.
-int nvgCreateFontMemAtIndex(NVGcontext* ctx, const char* name, unsigned char* data, int ndata, int freeData, const int fontIndex);
-
-// Finds a loaded font of specified name, and returns handle to it, or -1 if the font is not found.
-int nvgFindFont(NVGcontext* ctx, const char* name);
-
-// Adds a fallback font by handle.
-int nvgAddFallbackFontId(NVGcontext* ctx, int baseFont, int fallbackFont);
-
-// Adds a fallback font by name.
-int nvgAddFallbackFont(NVGcontext* ctx, const char* baseFont, const char* fallbackFont);
-
-// Resets fallback fonts by handle.
-void nvgResetFallbackFontsId(NVGcontext* ctx, int baseFont);
-
-// Resets fallback fonts by name.
-void nvgResetFallbackFonts(NVGcontext* ctx, const char* baseFont);
-
-// Sets the font size of current text style.
-void nvgFontSize(NVGcontext* ctx, float size);
-
-// Sets the blur of current text style.
-void nvgFontBlur(NVGcontext* ctx, float blur);
-
-// Sets the letter spacing of current text style.
-void nvgTextLetterSpacing(NVGcontext* ctx, float spacing);
-
-// Sets the proportional line height of current text style. The line height is specified as multiple of font size.
-void nvgTextLineHeight(NVGcontext* ctx, float lineHeight);
-
-// Sets the text align of current text style, see NVGalign for options.
-void nvgTextAlign(NVGcontext* ctx, int align);
-
-// Sets the font face based on specified id of current text style.
-void nvgFontFaceId(NVGcontext* ctx, int font);
-
-// Sets the font face based on specified name of current text style.
-void nvgFontFace(NVGcontext* ctx, const char* font);
-
-// Draws text string at specified location. If end is specified only the sub-string up to the end is drawn.
-float nvgText(NVGcontext* ctx, float x, float y, const char* string, const char* end);
-
-// Draws multi-line text string at specified location wrapped at the specified width. If end is specified only the sub-string up to the end is drawn.
-// White space is stripped at the beginning of the rows, the text is split at word boundaries or when new-line characters are encountered.
-// Words longer than the max width are slit at nearest character (i.e. no hyphenation).
-void nvgTextBox(NVGcontext* ctx, float x, float y, float breakRowWidth, const char* string, const char* end);
-
-// Measures the specified text string. Parameter bounds should be a pointer to float[4],
-// if the bounding box of the text should be returned. The bounds value are [xmin,ymin, xmax,ymax]
-// Returns the horizontal advance of the measured text (i.e. where the next character should drawn).
-// Measured values are returned in local coordinate space.
-float nvgTextBounds(NVGcontext* ctx, float x, float y, const char* string, const char* end, float* bounds);
-
-// Measures the specified multi-text string. Parameter bounds should be a pointer to float[4],
-// if the bounding box of the text should be returned. The bounds value are [xmin,ymin, xmax,ymax]
-// Measured values are returned in local coordinate space.
-void nvgTextBoxBounds(NVGcontext* ctx, float x, float y, float breakRowWidth, const char* string, const char* end, float* bounds);
-
-// Calculates the glyph x positions of the specified text. If end is specified only the sub-string will be used.
-// Measured values are returned in local coordinate space.
-int nvgTextGlyphPositions(NVGcontext* ctx, float x, float y, const char* string, const char* end, NVGglyphPosition* positions, int maxPositions);
-
-// Returns the vertical metrics based on the current text style.
-// Measured values are returned in local coordinate space.
-void nvgTextMetrics(NVGcontext* ctx, float* ascender, float* descender, float* lineh);
-
-// Breaks the specified text into lines. If end is specified only the sub-string will be used.
-// White space is stripped at the beginning of the rows, the text is split at word boundaries or when new-line characters are encountered.
-// Words longer than the max width are slit at nearest character (i.e. no hyphenation).
-int nvgTextBreakLines(NVGcontext* ctx, const char* string, const char* end, float breakRowWidth, NVGtextRow* rows, int maxRows);
-
-//
-// Internal Render API
-//
-enum NVGtexture {
-	NVG_TEXTURE_ALPHA = 0x01,
-	NVG_TEXTURE_RGBA = 0x02,
-};
-
-struct NVGscissor {
-	float xform[6];
-	float extent[2];
-};
-typedef struct NVGscissor NVGscissor;
-
-struct NVGvertex {
-	float x,y,u,v;
-};
-typedef struct NVGvertex NVGvertex;
-
-struct NVGpath {
-	int first;
-	int count;
-	unsigned char closed;
-	int nbevel;
-	NVGvertex* fill;
-	int nfill;
-	NVGvertex* stroke;
-	int nstroke;
-	int winding;
-	int convex;
-};
-typedef struct NVGpath NVGpath;
-
-struct NVGparams {
-	void* userPtr;
-	int edgeAntiAlias;
-	int (*renderCreate)(void* uptr);
-	int (*renderCreateTexture)(void* uptr, int type, int w, int h, int imageFlags, const unsigned char* data);
-	int (*renderDeleteTexture)(void* uptr, int image);
-	int (*renderUpdateTexture)(void* uptr, int image, int x, int y, int w, int h, const unsigned char* data);
-	int (*renderGetTextureSize)(void* uptr, int image, int* w, int* h);
-	void (*renderViewport)(void* uptr, float width, float height, float devicePixelRatio);
-	void (*renderCancel)(void* uptr);
-	void (*renderFlush)(void* uptr);
-	void (*renderFill)(void* uptr, NVGpaint* paint, NVGcompositeOperationState compositeOperation, NVGscissor* scissor, float fringe, const float* bounds, const NVGpath* paths, int npaths);
-	void (*renderStroke)(void* uptr, NVGpaint* paint, NVGcompositeOperationState compositeOperation, NVGscissor* scissor, float fringe, float strokeWidth, const NVGpath* paths, int npaths);
-	void (*renderTriangles)(void* uptr, NVGpaint* paint, NVGcompositeOperationState compositeOperation, NVGscissor* scissor, const NVGvertex* verts, int nverts, float fringe);
-	void (*renderDelete)(void* uptr);
-};
-typedef struct NVGparams NVGparams;
-
-// Constructor and destructor, called by the render back-end.
-NVGcontext* nvgCreateInternal(NVGparams* params);
-void nvgDeleteInternal(NVGcontext* ctx);
-
-NVGparams* nvgInternalParams(NVGcontext* ctx);
-
-// Debug function to dump cached path data.
-void nvgDebugDumpPathCache(NVGcontext* ctx);
-
-#if defined(__ANDROID__)
-#include <stdio.h>
-#include <android/asset_manager.h>
-void nvgSetAndroidAssetManager(AAssetManager * manager);
-FILE * android_fopen(const char* fname, const char* mode);
-#endif
-
-#ifdef _MSC_VER
-#pragma warning(pop)
-#endif
-
-#define NVG_NOTUSED(v) for (;;) { (void)(1 ? (void)0 : ( (void)(v) ) ); break; }
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif // NANOVG_H_F380EB38_CDA3_11EA_AF53_BBD96082A0CB