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nanovg_command_buffer.hpp
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#ifndef NANOVG_COMMAND_BUFFER_HPP
#define NANOVG_COMMAND_BUFFER_HPP
#include <cstdint>
#ifndef NCBH_STRING
#include <string>
#define NCBH_STRING std::string
#endif
#ifndef NCBH_VECTOR
#include <vector>
#define NCBH_VECTOR std::vector
#endif
#ifndef NCBH_PAGEQUEUE
#define NCBH_PAGEQUEUE NCBH_VECTOR
#ifndef NCBH_PAGEQUEUE_IS_VECTOR
#define NCBH_PAGEQUEUE_IS_VECTOR 1
#endif
#else
#ifndef NCBH_PAGEQUEUE_IS_VECTOR
#define NCBH_PAGEQUEUE_IS_VECTOR 0
#endif
#endif
#ifndef NCBH_BACKEND_IS_VG_RENDERER
#define NCBH_BACKEND_IS_VG_RENDERER 1
#endif
#ifndef NANOVG_BACKEND
#define NANOVG_BACKEND 1
#endif
#ifndef VGRENDERER_BACKEND
#define VGRENDERER_BACKEND 0
#endif
#ifndef NCBH_ABORT
#define NCBH_ABORT abort();
#endif
#ifndef NCBH_TEMPORARY_ALLOCATOR
#define NCBH_TEMPORARY_ALLOCATOR int
#define NCBH_TEMPORARY_ALLOCATOR_ENABLED 0
#else
#ifndef NCBH_TEMPORARY_ALLOCATOR_ENABLED
#define NCBH_TEMPORARY_ALLOCATOR_ENABLED 1
#endif
#endif
struct sttfont_formatted_text;
struct sttfont_format;
class NanoVgCommandBufferCustomCallbackI;
namespace vg {
struct Context;
struct GradientHandle;
}
struct NVGcontext;
struct NCB_Constants {
static constexpr int32_t NCB_unknown = 0;
// composite
static constexpr int32_t NCB_nvgGlobalCompositeOperation = 1;
static constexpr int32_t NCB_nvgGlobalCompositeBlendFunc = 2;
static constexpr int32_t NCB_nvgGlobalCompositeBlendFuncSeparate = 3;
// state
static constexpr int32_t NCB_nvgSave = 4;
static constexpr int32_t NCB_nvgRestore = 5;
static constexpr int32_t NCB_nvgReset = 6;
// style
static constexpr int32_t NCB_nvgShapeAntiAlias = 7;
static constexpr int32_t NCB_nvgStrokeColor = 8;
static constexpr int32_t NCB_nvgStrokePaint = 9;
static constexpr int32_t NCB_nvgFillColor = 10;
static constexpr int32_t NCB_nvgFillPaint = 11;
static constexpr int32_t NCB_nvgMiterLimit = 12;
static constexpr int32_t NCB_nvgStrokeWidth = 13;
static constexpr int32_t NCB_nvgLineCap = 14;
static constexpr int32_t NCB_nvgLineJoin = 15;
static constexpr int32_t NCB_nvgGlobalAlpha = 16;
// transform
static constexpr int32_t NCB_nvgResetTransform = 17;
static constexpr int32_t NCB_nvgTransform = 18;
static constexpr int32_t NCB_nvgTranslate = 19;
static constexpr int32_t NCB_nvgRotate = 49;
static constexpr int32_t NCB_nvgSkewX = 20;
static constexpr int32_t NCB_nvgSkewY = 21;
static constexpr int32_t NCB_nvgScale = 22;
// scissor
static constexpr int32_t NCB_nvgScissor = 23;
static constexpr int32_t NCB_nvgIntersectScissor = 24;
static constexpr int32_t NCB_nvgResetScissor = 25;
// path
static constexpr int32_t NCB_nvgBeginPath = 26;
static constexpr int32_t NCB_nvgMoveTo = 27;
static constexpr int32_t NCB_nvgLineTo = 28;
static constexpr int32_t NCB_nvgBezierTo = 29;
static constexpr int32_t NCB_nvgQuadTo = 30;
static constexpr int32_t NCB_nvgArcTo = 31;
static constexpr int32_t NCB_nvgClosePath = 32;
// stroke
static constexpr int32_t NCB_nvgPathWinding = 33;
static constexpr int32_t NCB_nvgArc = 34;
static constexpr int32_t NCB_nvgRect = 35;
static constexpr int32_t NCB_nvgRoundedRect = 36;
static constexpr int32_t NCB_nvgEllipse = 37;
static constexpr int32_t NCB_nvgCircle = 38;
static constexpr int32_t NCB_nvgFill = 39;
static constexpr int32_t NCB_nvgStroke = 40;
// text
static constexpr int32_t NCB_nvgFontSize = 41;
static constexpr int32_t NCB_nvgFontBlur = 42;
static constexpr int32_t NCB_nvgTextLetterSpacing = 43;
static constexpr int32_t NCB_nvgTextLineHeight = 44;
static constexpr int32_t NCB_nvgTextAlign = 45;
static constexpr int32_t NCB_nvgFontFaceId = 46;
static constexpr int32_t NCB_nvgText = 47;
static constexpr int32_t NCB_nvgTextBox = 48;
// gradiant
static constexpr int32_t NCB_nvgLinearGradient = 50;
static constexpr int32_t NCB_nvgBoxGradient = 51;
static constexpr int32_t NCB_nvgRadialGradient = 52;
// custom remdering
static constexpr int32_t NCB_submitTriList = 60;
// break
static constexpr int32_t NCB_pause = 1000;
// sdlStbFont Stuff
static constexpr int32_t SDL_STB_PRODUCER_CONSUMER_drawText = 1001;
static constexpr int32_t SDL_STB_PRODUCER_CONSUMER_drawPrerendered = 1002;
static constexpr int32_t SDL_STB_PRODUCER_CONSUMER_drawPrerenderedWColorMod = 1003;
static constexpr int32_t SDL_STB_PRODUCER_CONSUMER_drawTextDirectly = 1004;
static constexpr int32_t SSF_BGFX_SET_SCISSOR = 1004;
static constexpr int32_t SSF_BGFX_CLEAR_SCISSOR = 1005;
// custom engine stuff
};
struct NCBColor {
float r,g,b,a;
inline NCBColor() {}
inline NCBColor(const float _r, const float _g, const float _b, const float _a) : r(_r), g(_g), b(_b), a(_a) {}
#if NANOVG_BACKEND
inline NVGcolor toNVGcolor() const {
return ::nvgRGBAf(r,g,b,a);
}
#endif // NANOVG_BACKEND
#if VGRENDERER_BACKEND
inline vg::Color toVgColor() const {
return vg::color4f(r,g,b,a);
}
#endif // NANOVG_BACKEND
};
struct NCBGradientGenerator {
static constexpr int MODE_LINEAR_GRADIENT = 1;
static constexpr int MODE_BOX_GRADIENT = 2;
static constexpr int MODE_RADIAL_GRADIENT = 3;
int type;
float params[6];
NCBColor icol;
NCBColor ocol;
};
struct nvgw {
// For sttr registering with a namespace
inline static NCBColor nvgRGB(unsigned char r, unsigned char g, unsigned char b) {
return NCBColor(r/255.0,g/255.0,b/255.0,1.0f);
}
inline static NCBColor nvgRGBf(float r, float g, float b) {
return NCBColor(r, g, b, 1.0);
}
inline static NCBColor nvgRGBA(unsigned char r, unsigned char g, unsigned char b, unsigned char a) {
return NCBColor(r/255.0, g/255.0, b/255.0, a/255.0);
}
inline static NCBColor nvgRGBAf(float r, float g, float b, float a) {
return NCBColor(r, g, b, a);
}
inline static NCBColor nvgLerpRGBA(const NCBColor& c0, const NCBColor& c1, float u) {
const float um = 1.0f - u;
return NCBColor(c0.r*um + c1.r*u, c0.g*um + c1.g*u, c0.b*um + c1.b*u, c0.a*um + c1.a*u);
}
inline static NCBColor nvgTransRGBA(const NCBColor& c0, unsigned char a) {
return NCBColor(c0.r, c0.g, c0.b, a/255.0);
}
inline static NCBColor nvgTransRGBAf(const NCBColor& c0, float a) {
return NCBColor(c0.r, c0.g, c0.b, a);
}
static NCBColor nvgHSLA_worker(float h, float s, float l, unsigned char a);
inline static NCBColor nvgHSLA(float h, float s, float l, unsigned char a) {
return nvgHSLA_worker(h, s, l, a);
}
inline static NCBColor nvgHSL(float h, float s, float l) {
return nvgHSLA_worker(h, s, l, 255);
}
#if VGRENDERER_BACKEND
// no AA
static constexpr uint32_t VgStrokeFlag_ButtMiter = vg::StrokeFlags::ButtMiter;
static constexpr uint32_t VgStrokeFlag_ButtRound = vg::StrokeFlags::ButtRound;
static constexpr uint32_t VgStrokeFlag_ButtBevel = vg::StrokeFlags::ButtBevel;
static constexpr uint32_t VgStrokeFlag_RoundMiter = vg::StrokeFlags::RoundMiter;
static constexpr uint32_t VgStrokeFlag_RoundRound = vg::StrokeFlags::RoundRound;
static constexpr uint32_t VgStrokeFlag_RoundBevel = vg::StrokeFlags::RoundBevel;
static constexpr uint32_t VgStrokeFlag_SquareMiter = vg::StrokeFlags::SquareMiter;
static constexpr uint32_t VgStrokeFlag_SquareRound = vg::StrokeFlags::SquareRound;
static constexpr uint32_t VgStrokeFlag_SquareBevel = vg::StrokeFlags::SquareBevel;
// w/ AA
static constexpr uint32_t VgStrokeFlag_ButtMiterAA = vg::StrokeFlags::ButtMiterAA;
static constexpr uint32_t VgStrokeFlag_ButtRoundAA = vg::StrokeFlags::ButtRoundAA;
static constexpr uint32_t VgStrokeFlag_ButtBevelAA = vg::StrokeFlags::ButtBevelAA;
static constexpr uint32_t VgStrokeFlag_RoundMiterAA = vg::StrokeFlags::RoundMiterAA;
static constexpr uint32_t VgStrokeFlag_RoundRoundAA = vg::StrokeFlags::RoundRoundAA;
static constexpr uint32_t VgStrokeFlag_RoundBevelAA = vg::StrokeFlags::RoundBevelAA;
static constexpr uint32_t VgStrokeFlag_SquareMiterAA = vg::StrokeFlags::SquareMiterAA;
static constexpr uint32_t VgStrokeFlag_SquareRoundAA = vg::StrokeFlags::SquareRoundAA;
static constexpr uint32_t VgStrokeFlag_SquareBevelAA = vg::StrokeFlags::SquareBevelAA;
#endif
};
struct ncb_error_handler {
static void error(const char * msg) {
NCBH_ABORT;
}
static void not_found(const char* msg) {
NCBH_ABORT;
}
};
#ifdef SDL_STB_PRODUCER_CONSUMER
#if VGRENDERER_BACKEND
struct VgRendererSSFCustomCallbackWrapper {
struct textCallback {
int commandId;
int lastCommandId;
int nextCommandId;
int textId;
int x,y;
uint8_t r,g,b,a;
};
static void vgCustomCallback(vg::Context* ctx, void* usrPtr, const uint32_t a, const uint32_t b);
};
#endif // VGRENDERER_BACKEND
#endif // SDL_STB_PRODUCER_CONSUMER
class NanoVgCommandBuffer {
public:
struct dispatchState {
int32_t lastCommandId;
int32_t nextCommandId;
int aaEnabled; // 1 = on, 0 = off
int activePaintOrGradiantId; // -1 = disabled
NCBColor activeColour;
float strokeWidth;
int strokeFlags;
inline void initToZero() {
lastCommandId = NCB_Constants::NCB_unknown;;
nextCommandId = NCB_Constants::NCB_unknown;;
aaEnabled = 1;
activePaintOrGradiantId = -1;
activeColour = NCBColor(1.f, 1.f, 1.f, 1.f);
strokeWidth = 1.f;
strokeFlags = nvgw::VgStrokeFlag_ButtMiterAA;
}
};
struct triListBuffer {
float* floats;
uint32_t* colours;
uint16_t* indices;
uint16_t nFloats;
uint16_t nColours;
uint16_t nIndices;
uint32_t allocSz;
void assign(uint8_t* mem, const uint32_t _allocSz) {
floats = (float*) &mem[0];
colours = (uint32_t*) &mem[sizeof(float) * nFloats];
indices = (uint16_t*) &mem[sizeof(float) * nFloats + sizeof(uint32_t) * nColours];
allocSz = _allocSz;
}
};
struct command
{
int32_t functionIdx;
union
{
float (argsFloats) [7];
int32_t (argsInts) [7];
} data;
inline command () {}
inline command (const int32_t _id) : functionIdx(_id) {}
inline explicit command (const int32_t _id, const float f0) : functionIdx(_id) { data.argsFloats[0] = f0; }
inline explicit command (const int32_t _id, const float f0, const float f1) : functionIdx(_id) { data.argsFloats[0] = f0; data.argsFloats[1] = f1; }
inline explicit command (const int32_t _id, const float f0, const float f1, const float f2) : functionIdx(_id) { data.argsFloats[0] = f0; data.argsFloats[1] = f1; data.argsFloats[2] = f2; }
inline explicit command (const int32_t _id, const float f0, const float f1, const float f2, const float f3) : functionIdx(_id) { data.argsFloats[0] = f0; data.argsFloats[1] = f1; data.argsFloats[2] = f2; data.argsFloats[3] = f3; }
inline explicit command (const int32_t _id, const float f0, const float f1, const float f2, const float f3, const float f4) : functionIdx(_id) { data.argsFloats[0] = f0; data.argsFloats[1] = f1; data.argsFloats[2] = f2; data.argsFloats[3] = f3; data.argsFloats[4] = f4; }
inline explicit command (const int32_t _id, const float f0, const float f1, const float f2, const float f3, const float f4, const float f5) : functionIdx(_id) { data.argsFloats[0] = f0; data.argsFloats[1] = f1; data.argsFloats[2] = f2; data.argsFloats[3] = f3; data.argsFloats[4] = f4; data.argsFloats[5] = f5; }
inline explicit command (const int32_t _id, const float f0, const float f1, const float f2, const float f3, const float f4, const int i5) : functionIdx(_id) { data.argsFloats[0] = f0; data.argsFloats[1] = f1; data.argsFloats[2] = f2; data.argsFloats[3] = f3; data.argsFloats[4] = f4; data.argsInts[5] = i5; }
inline explicit command (const int32_t _id, const float f0, const float f1, const float f2, const float f3, const int i4) : functionIdx(_id) { data.argsFloats[0] = f0; data.argsFloats[1] = f1; data.argsFloats[2] = f2; data.argsFloats[3] = f3; data.argsInts[4] = i4; }
inline explicit command (const int32_t _id, const int i0) : functionIdx(_id) { data.argsInts[0] = i0; }
inline explicit command (const int32_t _id, const int i0, const float f1, const int i2) : functionIdx(_id) { data.argsInts[0] = i0; data.argsFloats[1] = f1; data.argsInts[2] = i2; }
inline explicit command (const int32_t _id, const int i0, const int i1) : functionIdx(_id) { data.argsInts[0] = i0; data.argsInts[1] = i1; }
inline explicit command (const int32_t _id, const int i0, const int i1, const int i2) : functionIdx(_id) { data.argsInts[0] = i0; data.argsInts[1] = i1; data.argsInts[2] = i2; }
inline explicit command (const int32_t _id, const int i0, const int i1, const int i2, const int i3) : functionIdx(_id) { data.argsInts[0] = i0; data.argsInts[1] = i1; data.argsInts[2] = i2; data.argsInts[3] = i3; }
inline explicit command (const int32_t _id, const int i0, const int i1, const int i2, const int i3, const int i4) : functionIdx(_id) { data.argsInts[0] = i0; data.argsInts[1] = i1; data.argsInts[2] = i2; data.argsInts[3] = i3; data.argsInts[4] = i4; }
inline explicit command (const int32_t _id, const int i0, const int i1, const int i2, const int i3, const int i4, const int i5) : functionIdx(_id) { data.argsInts[0] = i0; data.argsInts[1] = i1; data.argsInts[2] = i2; data.argsInts[3] = i3; data.argsInts[4] = i4; data.argsInts[5] = i5; }
inline explicit command (const int32_t _id, const int i0, const int i1, const int i2, const int i3, const int i4, const int i5, const int i6) : functionIdx(_id) { data.argsInts[0] = i0; data.argsInts[1] = i1; data.argsInts[2] = i2; data.argsInts[3] = i3; data.argsInts[4] = i4; data.argsInts[5] = i5; data.argsInts[6] = i6; }
inline explicit command (const int32_t _id, const float f0, const float f1, const int i2) : functionIdx(_id) { data.argsFloats[0] = f0; data.argsFloats[1] = f1; data.argsInts[2] = i2; }
inline explicit command (const int32_t _id, const float f0, const float f1, const float f2, const int i3) : functionIdx(_id) { data.argsFloats[0] = f0; data.argsFloats[1] = f1; data.argsFloats[2] = f2; data.argsInts[3] = i3; }
};
// TBD - with std-stll integration supply a disposable bump allocator instead of this stuff
// this is not really a hotspot for allocations - its just a few reallocs per frame
NCBH_TEMPORARY_ALLOCATOR* allocator; // A temporary allocator (requires snappertt/stt-stl containers to work)
NCBH_PAGEQUEUE <NanoVgCommandBuffer::command> mCommands;
NCBH_VECTOR <NCBGradientGenerator> mGradientGenerators;
NCBH_VECTOR <NCBH_STRING> mStrings;
NCBH_VECTOR <uint8_t*> mTriLists;
#if VGRENDERER_BACKEND
NCBH_VECTOR <vg::GradientHandle> mGradients;
#endif
#if NANOVG_BACKEND
NCBH_VECTOR <NVGpaint> mPaints;
#endif
#ifdef SDL_STB_PRODUCER_CONSUMER
producer_consumer_font_cache* m_producer_consumer_font_cache;
#if VGRENDERER_BACKEND
NCBH_VECTOR <VgRendererSSFCustomCallbackWrapper::textCallback> mTextCallbacks;
#endif
#endif
NanoVgCommandBufferCustomCallbackI* customCommandHandler;
int pauseCode;
int instructionCounter;
protected:
int addPaintGenerator (NCBGradientGenerator const & paint);
int addString (char const * string, char const * end);
public:
NanoVgCommandBuffer();
~NanoVgCommandBuffer();
void swap (NanoVgCommandBuffer & other);
void clear ();
void discard_internal_state ();
void dispatchSingle (NVGcontext * ctx, vg::Context * vgCtx, NanoVgCommandBuffer::command const & c, NanoVgCommandBuffer::dispatchState & mDispatchState);
inline void dispatchSingle (NVGcontext * ctx, vg::Context * vgCtx, NanoVgCommandBuffer::command const & c) { dispatchState s; s.initToZero(); dispatchSingle(ctx, vgCtx, c, s); }
void dispatch (NVGcontext * ctx);
void dispatchVg (vg::Context * ctx);
protected:
void dispatch_worker (NVGcontext * ctx, vg::Context * vgCtx);
public:
static void sttr_register();
// Pauses rendering and sets this->pauseCode to _pauseCode
inline void pause(int _pauseCode) {
mCommands.push_back(command(NCB_Constants::NCB_pause, _pauseCode));
}
// nvg composite
inline void nvgGlobalCompositeOperation(int op) {
mCommands.push_back(command(NCB_Constants::NCB_nvgGlobalCompositeOperation, op));
}
inline void nvgGlobalCompositeBlendFunc(int sfactor, int dfactor) {
mCommands.push_back(command(NCB_Constants::NCB_nvgGlobalCompositeBlendFunc, sfactor, dfactor));
}
inline void nvgGlobalCompositeBlendFuncSeparate(int srcRGB, int dstRGB, int srcAlpha, int dstAlpha) {
mCommands.push_back(command(NCB_Constants::NCB_nvgGlobalCompositeBlendFuncSeparate, srcRGB, dstRGB, srcAlpha, dstAlpha));
}
// nvg state
inline void nvgSave() {
mCommands.push_back(command(NCB_Constants::NCB_nvgSave));
}
inline void nvgRestore() {
mCommands.push_back(command(NCB_Constants::NCB_nvgRestore));
}
inline void nvgReset() {
mCommands.push_back(command(NCB_Constants::NCB_nvgReset));
}
// nvg styles
inline void nvgShapeAntiAlias(int enabled) {
mCommands.push_back(command(NCB_Constants::NCB_nvgShapeAntiAlias, enabled));
}
inline void nvgStrokeColor(const NCBColor& color, const int vgStrokeFlags) {
// note that vg* only has effect with vgrenderer backend
mCommands.push_back(command(NCB_Constants::NCB_nvgStrokeColor, color.r, color.g, color.b, color.a, vgStrokeFlags));
}
inline void nvgStrokePaint(int paintIdx, const int vgStrokeFlags) {
// note that vg* only has effect with vgrenderer backend
mCommands.push_back(command(NCB_Constants::NCB_nvgStrokePaint, paintIdx, vgStrokeFlags));
}
//inline void nvgStrokePaint(const NCBGradientGenerator & constructionInfo) {
// int idx = addPaintGenerator(constructionInfo);
// mCommands.push_back(command(NCB_Constants::NCB_nvgStrokePaint, idx));
// }
inline void nvgFillColor(const NCBColor& color) {
mCommands.push_back(command(NCB_Constants::NCB_nvgFillColor, color.r, color.g, color.b, color.a));
}
//inline void nvgFillPaint(const NCBGradientGenerator & constructionInfo) {
// int idx = addPaintGenerator(constructionInfo);
// mCommands.push_back(command(NCB_Constants::NCB_nvgFillPaint, idx));
// }
inline void nvgFillPaint(int paintIdx) {
mCommands.push_back(command(NCB_Constants::NCB_nvgFillPaint, paintIdx));
}
inline void nvgMiterLimit(float limit) {
mCommands.push_back(command(NCB_Constants::NCB_nvgMiterLimit, limit));
}
inline void nvgStrokeWidth(float size) {
mCommands.push_back(command(NCB_Constants::NCB_nvgStrokeWidth, size));
}
inline void nvgLineCap(int cap) {
mCommands.push_back(command(NCB_Constants::NCB_nvgLineCap, cap));
}
inline void nvgLineJoin(int join) {
mCommands.push_back(command(NCB_Constants::NCB_nvgLineJoin, join));
}
inline void nvgGlobalAlpha(float alpha) {
mCommands.push_back(command(NCB_Constants::NCB_nvgGlobalAlpha, alpha));
}
// nvg transforms
inline void nvgResetTransform() {
mCommands.push_back(command(NCB_Constants::NCB_nvgResetTransform));
}
inline void nvgTransform(float a, float b, float c, float d, float e, float f) {
mCommands.push_back(command(NCB_Constants::NCB_nvgTransform, a, b, c, d, e, f));
}
inline void nvgTranslate(float x, float y) {
mCommands.push_back(command(NCB_Constants::NCB_nvgTranslate, x, y));
}
inline void nvgRotate(float angle) {
mCommands.push_back(command(NCB_Constants::NCB_nvgRotate, angle));
}
inline void nvgSkewX(float angle) {
mCommands.push_back(command(NCB_Constants::NCB_nvgSkewX, angle));
}
inline void nvgSkewY(float angle) {
mCommands.push_back(command(NCB_Constants::NCB_nvgSkewY, angle));
}
inline void nvgScale(float x, float y) {
mCommands.push_back(command(NCB_Constants::NCB_nvgScale, x, y));
}
// nvg scissor
inline void nvgScissor(float x, float y, float w, float h) {
mCommands.push_back(command(NCB_Constants::NCB_nvgScissor, x, y, w, h));
}
inline void nvgIntersectScissor(float x, float y, float w, float h) {
mCommands.push_back(command(NCB_Constants::NCB_nvgIntersectScissor, x, y, w, h));
}
inline void nvgResetScissor() {
mCommands.push_back(command(NCB_Constants::NCB_nvgResetScissor));
}
// nvg path
inline void nvgBeginPath() {
mCommands.push_back(command(NCB_Constants::NCB_nvgBeginPath));
}
inline void nvgMoveTo(float x, float y) {
mCommands.push_back(command(NCB_Constants::NCB_nvgMoveTo, x, y));
}
inline void nvgLineTo(float x, float y) {
mCommands.push_back(command(NCB_Constants::NCB_nvgLineTo, x, y));
}
inline void nvgBezierTo(float c1x, float c1y, float c2x, float c2y, float x, float y) {
mCommands.push_back(command(NCB_Constants::NCB_nvgBezierTo, c1x, c1y, c2x, c2y, x, y));
}
inline void nvgQuadTo(float cx, float cy, float x, float y) {
mCommands.push_back(command(NCB_Constants::NCB_nvgQuadTo, cx, cy, x, y));
}
inline void nvgArcTo(float cx, float cy, float x, float y, float radius) {
mCommands.push_back(command(NCB_Constants::NCB_nvgArcTo, cx, cy, x, y, radius));
}
inline void nvgClosePath() {
mCommands.push_back(command(NCB_Constants::NCB_nvgClosePath));
}
inline void nvgPathWinding(int dir) {
mCommands.push_back(command(NCB_Constants::NCB_nvgPathWinding, dir));
}
inline void nvgArc(float cx, float cy, float r, float a0, float a1, int dir) {
mCommands.push_back(command(NCB_Constants::NCB_nvgArc, cx, cy, r, a0, a1, dir));
}
inline void nvgRect(float x, float y, float w, float h) {
mCommands.push_back(command(NCB_Constants::NCB_nvgRect, x, y, w, h));
}
inline void nvgRoundedRect(float x, float y, float w, float h, float r) {
mCommands.push_back(command(NCB_Constants::NCB_nvgRoundedRect, x, y, w, h, r));
}
//inline void nvgRoundedRectVarying(float x, float y, float w, float h, float radTopLeft, float radTopRight, float radBottomRight, float radBottomLeft) {
// abort();
// }
inline void nvgEllipse(float cx, float cy, float rx, float ry) {
mCommands.push_back(command(NCB_Constants::NCB_nvgEllipse, cx, cy, rx, ry));
}
inline void nvgCircle(float cx, float cy, float r) {
mCommands.push_back(command(NCB_Constants::NCB_nvgEllipse, cx, cy, r));
}
inline void nvgFill() {
mCommands.push_back(command(NCB_Constants::NCB_nvgFill));
}
inline void nvgStroke() {
mCommands.push_back(command(NCB_Constants::NCB_nvgStroke));
}
// text
inline void nvgFontSize(float size) {
mCommands.push_back(command(NCB_Constants::NCB_nvgFontSize, size));
}
inline void nvgFontBlur(float blur) {
mCommands.push_back(command(NCB_Constants::NCB_nvgFontBlur, blur));
}
inline void nvgTextLetterSpacing(float spacing) {
mCommands.push_back(command(NCB_Constants::NCB_nvgTextLetterSpacing, spacing));
}
inline void nvgTextLineHeight(float lineHeight) {
mCommands.push_back(command(NCB_Constants::NCB_nvgTextLineHeight, lineHeight));
}
inline void nvgTextAlign(int align) {
mCommands.push_back(command(NCB_Constants::NCB_nvgTextAlign, align));
}
inline void nvgFontFaceId(int font) {
mCommands.push_back(command(NCB_Constants::NCB_nvgFontFaceId, font));
}
//void nvgFontFace(const char* font) { // Don't use this, use nvgFontFaceId instead
// mCommands.push_back(command(NCB_Constants::NCB_nvgFontFace, font));
// }
inline void nvgText(float x, float y, const char* string, const char* end) {
int idx = addString(string, end);
mCommands.push_back(command(NCB_Constants::NCB_nvgText, x, y, idx));
}
inline void nvgTextBox(float x, float y, float breakRowWidth, const char* string, const char* end) {
int idx = addString(string, end);
mCommands.push_back(command(NCB_Constants::NCB_nvgTextBox, x, y, breakRowWidth, idx));
}
int nvgLinearGradient(float sx, float sy, float ex, float ey, const NCBColor& icol, const NCBColor& ocol);
int nvgBoxGradient(float x, float y, float w, float h, float r, float f, const NCBColor& icol, const NCBColor& ocol);
int nvgRadialGradient(float cx, float cy, float inr, float outr, const NCBColor& icol, const NCBColor& ocol);
#ifdef SDL_STB_PRODUCER_CONSUMER
// SDL_STB_PRODUCER_CONSUMER_Font functions to be used with producerConsumerFrontend
// https://github.com/SnapperTT/sdl_stb_font
inline void pushSsfText(const int h) {
mCommands.push_back(command(NCB_Constants::SDL_STB_PRODUCER_CONSUMER_drawText, h));
}
void pushSsfText(const int x, const int y, const NCBH_STRING & s, int* xOut=NULL, int * widthOut=NULL, int* heightOut=NULL);
void pushSsfText(const int x, const int y, const sttfont_formatted_text & s, int* xOut=NULL, int * widthOut=NULL, int* heightOut=NULL);
void pushSsfText(const int x, const int y, const char* c, int* xOut=NULL, int * widthOut=NULL, int* heightOut=NULL);
void pushSsfText(const int x, const int y, const sttfont_format & format, const char* c, int* xOut=NULL, int * widthOut=NULL, int* heightOut=NULL);
void pushSsfText(const int x, const int y, const sttfont_format & format, const NCBH_STRING & s, int* xOut=NULL, int * widthOut=NULL, int* heightOut=NULL);
void pushSsfPrerendered(const int textHandle, const int x, const int y);
void pushSsfPrerenderedWColorMod(const int textHandle, const int x, const int y, const int r, const int g, const int b, const int a);
#endif
#ifdef BGFX
inline void ssfBgfxSetScissor(const float x, const float y, const float w, const float h) {
mCommands.push_back(command(NCB_Constants::SSF_BGFX_SET_SCISSOR, x, y, w, h));
}
inline void ssfBgfxClearScissor() {
mCommands.push_back(command(NCB_Constants::SSF_BGFX_CLEAR_SCISSOR));
}
#endif
// index of mTriLists array is returned
// if floats/colours/indices is not null then they are copied into the allocated buffer.
// otherwise you must access and fill the buffer yourself
// int idx = allocateTriList(...);
// NanoVgCommandBuffer::triListBuffer* b = NVG->getTriList(idx)
// actual drawing of trilists is only supported with vg_renderer backend. If you want this to work with
// nanovg you'll have to patch it yourseslf
int allocateTriList(const float* floats, const uint32_t* colours, const uint16_t* indices, const uint16_t nFloats, const uint16_t nColours, const uint16_t nIndices);
triListBuffer* getTriList(const int index) {
if (unsigned(index) >= mTriLists.size())
return NULL;
return (triListBuffer*) mTriLists[index];
}
inline void submitTriList(const int index) {
mCommands.push_back(command(NCB_Constants::NCB_submitTriList, index));
}
inline void push_custom(command&& c) {
mCommands.push_back(std::move(c));
}
inline void push_custom(const command& c) {
mCommands.push_back(c);
}
void bindAllocator(NCBH_TEMPORARY_ALLOCATOR* _allocator);
};
class NanoVgCommandBufferCustomCallbackI {
public:
virtual inline bool handleCustomCallback(NanoVgCommandBuffer * NVG, NVGcontext * ctx, vg::Context * vgCtx, NanoVgCommandBuffer::command const & c) {
return true;
}
};
#endif
#ifdef NANOVG_COMMAND_BUFFER_IMPL
///////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Start Implementation
NCBColor nvgw::nvgHSLA_worker(float h, float s, float l, unsigned char a) {
float c = (1.0f - fabsf(2.0f * l - 1.0f)) * s; // Chroma
float x = c * (1.0f - fabsf(fmodf(h * 6.0f, 2.0f) - 1.0f));
float m = l - c / 2.0f;
float r1, g1, b1;
if (h < 1.0f / 6.0f) { r1 = c; g1 = x; b1 = 0; }
else if (h < 2.0f / 6.0f) { r1 = x; g1 = c; b1 = 0; }
else if (h < 3.0f / 6.0f) { r1 = 0; g1 = c; b1 = x; }
else if (h < 4.0f / 6.0f) { r1 = 0; g1 = x; b1 = c; }
else if (h < 5.0f / 6.0f) { r1 = x; g1 = 0; b1 = c; }
else { r1 = c; g1 = 0; b1 = x; }
return NCBColor(r1+m, g1+m, b1+m, a/255.0);
}
#ifdef SDL_STB_PRODUCER_CONSUMER
#if VGRENDERER_BACKEND
void VgRendererSSFCustomCallbackWrapper::vgCustomCallback(vg::Context* ctx, void* usrPtr, const uint32_t a, const uint32_t b) {
NanoVgCommandBuffer* NVG = (NanoVgCommandBuffer*) usrPtr;
const textCallback& cb = NVG->mTextCallbacks[a];
producer_consumer_font_cache* pcfc = NVG->m_producer_consumer_font_cache;
//Logger_ldbg("vgCustomCallback: {} {}", cb.commandId, cb.textId);
switch (cb.commandId) {
case NCB_Constants::SDL_STB_PRODUCER_CONSUMER_drawText:
{
if (cb.lastCommandId != NCB_Constants::SDL_STB_PRODUCER_CONSUMER_drawText) {
//Logger_ldbg(" cb.lastCommandId != NCB_Constants::SDL_STB_PRODUCER_CONSUMER_drawText {} {}", cb.lastCommandId, NCB_Constants::SDL_STB_PRODUCER_CONSUMER_drawText);
pcfc->consumer_font_cache->startManuallyBuffering(true); // start batched text rendering
}
pcfc->dispatchSingleText(cb.textId);
//auto& textObj = pcfc->getConsumerState()->text[cb.textId].text;
//if (textObj.mItems.size())
// Logger_ldbg("NCB command [{}, {}, {}] dispatch text: \"{}\" ({}, {}, {}, {}))", cb.lastCommandId, cb.commandId, cb.nextCommandId, textObj.getString(), textObj.mItems[0].format.r, textObj.mItems[0].format.g, textObj.mItems[0].format.b, textObj.mItems[0].format.a);
if (cb.nextCommandId != NCB_Constants::SDL_STB_PRODUCER_CONSUMER_drawText) {
//Logger_ldbg(" cb.nextCommandId != NCB_Constants::SDL_STB_PRODUCER_CONSUMER_drawText {} {}", cb.nextCommandId, NCB_Constants::SDL_STB_PRODUCER_CONSUMER_drawText);
pcfc->consumer_font_cache->endManuallyBuffering(true); // finish batched text rendering
}
}
return;
case NCB_Constants::SDL_STB_PRODUCER_CONSUMER_drawPrerendered:
pcfc->dispatchSinglePrerendered(cb.textId, cb.x, cb.y);
return;
case NCB_Constants::SDL_STB_PRODUCER_CONSUMER_drawPrerenderedWColorMod:
pcfc->dispatchSinglePrerenderedWColorMod(cb.textId, cb.x, cb.y, cb.r, cb.g, cb.b, cb.a);
return;
default:
ncb_error_handler::not_found("unknown vgCustomCallback instruction");
return;
}
}
#endif // VGRENDERER_BACKEND
#endif // SDL_STB_PRODUCER_CONSUMER
NanoVgCommandBuffer::NanoVgCommandBuffer() {
#ifdef SDL_STB_PRODUCER_CONSUMER
m_producer_consumer_font_cache = NULL;
#endif
allocator = 0;
pauseCode = 0;
instructionCounter = 0;
customCommandHandler = NULL;
}
NanoVgCommandBuffer::~NanoVgCommandBuffer() {
clear();
}
int NanoVgCommandBuffer::addPaintGenerator (NCBGradientGenerator const & paint) {
if (mGradientGenerators.size()) {
// easy out - resusue paint if its the same as previous
int sz = mGradientGenerators.size();
int iBegin = sz - 8; // check the last X paints so that we're not creating duplicates
if (iBegin < 0) iBegin = 0;
for (int i = iBegin; i < sz; ++i)
if (memcmp(&mGradientGenerators[i], &paint, sizeof(NCBGradientGenerator)) == 0)
return i;
}
mGradientGenerators.push_back(paint);
return mGradientGenerators.size() - 1;
}
int NanoVgCommandBuffer::addString (char const * string, char const * end) {
if (!string) return -1;
int sz = mStrings.size();
int iBegin = sz - 8;
if (iBegin < 0) iBegin = 0;
if (end) {
NCBH_STRING str(string, end - string);
for (int i = iBegin; i < sz; ++i)
if (mStrings[i] == str) return i;
mStrings.push_back(str);
}
else {
NCBH_STRING str(string);
for (int i = iBegin; i < sz; ++i)
if (mStrings[i] == str) return i;
mStrings.push_back(str);
}
return mStrings.size() - 1;
}
void NanoVgCommandBuffer::bindAllocator(NCBH_TEMPORARY_ALLOCATOR* _allocator) {
#if NCBH_TEMPORARY_ALLOCATOR_ENABLED
if (allocator)
ncb_error_handler::error("custom allocator already assigned");
allocator = _allocator;
#if NCBH_PAGEQUEUE_IS_VECTOR
mCommands.setAllocator(allocator);
#endif
mGradientGenerators.setAllocator(allocator);
mStrings.setAllocator(allocator);
mTriLists.setAllocator(allocator);
#if VGRENDERER_BACKEND
mGradients.setAllocator(allocator);
#endif
#if NANOVG_BACKEND
mPaints.setAllocator(allocator);
#endif
#ifdef SDL_STB_PRODUCER_CONSUMER
#if VGRENDERER_BACKEND
mTextCallbacks.setAllocator(allocator);
#endif
#endif
#else
ncb_error_handler::error("temporary allocator is not enabled");
#endif
}
void NanoVgCommandBuffer::swap (NanoVgCommandBuffer & other) {
if (bool(allocator) xor bool(other.allocator))
ncb_error_handler::error("cannot swap buffers if only one or the other is using temporary allocators");
#if NCBH_TEMPORARY_ALLOCATOR_ENABLED
auto* p = allocator;
allocator = other.allocator;
other.allocator = p;
mCommands.swap_allocator_pointers(other.mCommands);
mGradientGenerators.swap_allocator_pointers(other.mGradientGenerators);
mStrings.swap_allocator_pointers(other.mStrings);
mTriLists.swap_allocator_pointers(other.mTriLists);
#if VGRENDERER_BACKEND
mGradients.swap_allocator_pointers(other.mGradients);
#ifdef SDL_STB_PRODUCER_CONSUMER
mTextCallbacks.swap_allocator_pointers(other.mTextCallbacks);
#endif
#endif
#if NANOVG_BACKEND
mPaints.swap_allocator_pointers(other.mPaints);
#endif
#else
mCommands.swap(other.mCommands);
mGradientGenerators.swap(other.mGradientGenerators);
mStrings.swap(other.mStrings);
mTriLists.swap(other.mTriLists);
#if VGRENDERER_BACKEND
mGradients.swap(other.mGradients);
#ifdef SDL_STB_PRODUCER_CONSUMER
mTextCallbacks.swap(other.mTextCallbacks);
#endif
#endif
#if NANOVG_BACKEND
mPaints.swap(other.mPaints);
#endif
#endif
}
void NanoVgCommandBuffer::clear () {
mCommands.clear();
mGradientGenerators.clear();
mStrings.clear();
if (!allocator) {
for (uint8_t* ptr : mTriLists)
delete[] ptr;
}
mTriLists.clear();
#if VGRENDERER_BACKEND
mGradients.clear();
#ifdef SDL_STB_PRODUCER_CONSUMER
mTextCallbacks.clear();
#endif
#endif
#if NANOVG_BACKEND
mPaints.clear();
#endif
}
void NanoVgCommandBuffer::discard_internal_state () {
// use this is a custom temporary allocator owns the data
// and you are resetting the allocator
#if NCBH_TEMPORARY_ALLOCATOR_ENABLED
if (!allocator)
ncb_error_handler::error("cannot discard_internal_state if not using a temporary allocator");
#if NCBH_PAGEQUEUE_IS_VECTOR
mCommands.discard_internal_state();
#else
mCommands.clear();
#endif
mGradientGenerators.discard_internal_state();
mStrings.discard_internal_state();
mTriLists.discard_internal_state();
#if VGRENDERER_BACKEND
mGradients.discard_internal_state();
#ifdef SDL_STB_PRODUCER_CONSUMER
mTextCallbacks.discard_internal_state();
#endif
#endif
#if NANOVG_BACKEND
mPaints.discard_internal_state();
#endif
allocator = NULL;
#endif
}
void NanoVgCommandBuffer::dispatchSingle (NVGcontext * ctx, vg::Context * vgCtx, NanoVgCommandBuffer::command const & c, NanoVgCommandBuffer::dispatchState & mDispatchState) {
switch (c.functionIdx) {
// break
// used to pause execution
case NCB_Constants::NCB_pause:
pauseCode = c.data.argsInts[0];
instructionCounter = -1;
return;
// nvg composite
#if NANOVG_BACKEND
case NCB_Constants::NCB_nvgGlobalCompositeOperation:
return ::nvgGlobalCompositeOperation(ctx, c.data.argsInts[0]);
case NCB_Constants::NCB_nvgGlobalCompositeBlendFunc:
return ::nvgGlobalCompositeBlendFunc(ctx, c.data.argsInts[0], c.data.argsInts[1]);
case NCB_Constants::NCB_nvgGlobalCompositeBlendFuncSeparate:
return ::nvgGlobalCompositeBlendFuncSeparate(ctx, c.data.argsInts[0], c.data.argsInts[1], c.data.argsInts[2], c.data.argsInts[3]);
// nvg state
case NCB_Constants::NCB_nvgSave:
return ::nvgSave(ctx);
case NCB_Constants::NCB_nvgRestore:
return ::nvgRestore(ctx);
case NCB_Constants::NCB_nvgReset:
return ::nvgReset(ctx);
// nvg style
case NCB_Constants::NCB_nvgShapeAntiAlias:
return ::nvgShapeAntiAlias(ctx, c.data.argsInts[0]);
case NCB_Constants::NCB_nvgStrokeColor:
return ::nvgStrokeColor(ctx, nvgRGBAf(c.data.argsFloats[0], c.data.argsFloats[1], c.data.argsFloats[2], c.data.argsFloats[3]) );
case NCB_Constants::NCB_nvgStrokePaint:
return ::nvgStrokePaint(ctx, mPaints[c.data.argsInts[0]]);
case NCB_Constants::NCB_nvgFillColor:
return ::nvgFillColor(ctx, nvgRGBAf(c.data.argsFloats[0], c.data.argsFloats[1], c.data.argsFloats[2], c.data.argsFloats[3]) );
case NCB_Constants::NCB_nvgFillPaint:
return ::nvgFillPaint(ctx, mPaints[c.data.argsInts[0]]);
case NCB_Constants::NCB_nvgMiterLimit:
return ::nvgMiterLimit(ctx, c.data.argsFloats[0]);
case NCB_Constants::NCB_nvgStrokeWidth:
return ::nvgStrokeWidth(ctx, c.data.argsFloats[0]);
case NCB_Constants::NCB_nvgLineCap:
return ::nvgLineCap(ctx, c.data.argsInts[0]);
case NCB_Constants::NCB_nvgLineJoin:
return ::nvgLineJoin(ctx, c.data.argsInts[0]);
case NCB_Constants::NCB_nvgGlobalAlpha:
return ::nvgGlobalAlpha(ctx, c.data.argsFloats[0]);
// nvg transform
case NCB_Constants::NCB_nvgResetTransform:
return ::nvgResetTransform(ctx);
case NCB_Constants::NCB_nvgTransform:
return ::nvgTransform(ctx, c.data.argsFloats[0], c.data.argsFloats[1], c.data.argsFloats[2], c.data.argsFloats[3], c.data.argsFloats[4], c.data.argsFloats[5]);
case NCB_Constants::NCB_nvgTranslate:
return ::nvgTranslate(ctx, c.data.argsFloats[0], c.data.argsFloats[1]);
case NCB_Constants::NCB_nvgRotate:
return ::nvgRotate(ctx, c.data.argsFloats[0]);
case NCB_Constants::NCB_nvgSkewX:
return ::nvgSkewX(ctx, c.data.argsFloats[0]);
case NCB_Constants::NCB_nvgSkewY:
return ::nvgSkewY(ctx, c.data.argsFloats[0]);
case NCB_Constants::NCB_nvgScale:
return ::nvgScale(ctx, c.data.argsFloats[0], c.data.argsFloats[1]);
// nvg scissor
case NCB_Constants::NCB_nvgScissor:
return ::nvgScissor(ctx, c.data.argsFloats[0], c.data.argsFloats[1], c.data.argsFloats[2], c.data.argsFloats[3]);
case NCB_Constants::NCB_nvgIntersectScissor:
return ::nvgIntersectScissor(ctx, c.data.argsFloats[0], c.data.argsFloats[1], c.data.argsFloats[2], c.data.argsFloats[3]);
case NCB_Constants::NCB_nvgResetScissor:
return ::nvgResetScissor(ctx);
// nvg path
case NCB_Constants::NCB_nvgBeginPath:
return ::nvgBeginPath(ctx);
case NCB_Constants::NCB_nvgMoveTo:
return ::nvgMoveTo(ctx, c.data.argsFloats[0], c.data.argsFloats[1]);
case NCB_Constants::NCB_nvgLineTo:
return ::nvgLineTo(ctx, c.data.argsFloats[0], c.data.argsFloats[1]);
case NCB_Constants::NCB_nvgBezierTo:
return ::nvgBezierTo(ctx, c.data.argsFloats[0], c.data.argsFloats[1], c.data.argsFloats[2], c.data.argsFloats[3], c.data.argsFloats[4], c.data.argsFloats[5]);
case NCB_Constants::NCB_nvgQuadTo:
return ::nvgQuadTo(ctx, c.data.argsFloats[0], c.data.argsFloats[1], c.data.argsFloats[2], c.data.argsFloats[3]);
case NCB_Constants::NCB_nvgArcTo:
return ::nvgArcTo(ctx, c.data.argsFloats[0], c.data.argsFloats[1], c.data.argsFloats[2], c.data.argsFloats[3], c.data.argsFloats[4]);
case NCB_Constants::NCB_nvgClosePath:
return ::nvgClosePath(ctx);
case NCB_Constants::NCB_nvgPathWinding:
return ::nvgPathWinding(ctx, c.data.argsInts[0]);
case NCB_Constants::NCB_nvgArc:
return ::nvgArc(ctx, c.data.argsFloats[0], c.data.argsFloats[1], c.data.argsFloats[2], c.data.argsFloats[3], c.data.argsFloats[4], c.data.argsInts[5]);
case NCB_Constants::NCB_nvgRect:
return ::nvgRect(ctx, c.data.argsFloats[0], c.data.argsFloats[1], c.data.argsFloats[2], c.data.argsFloats[3]);
case NCB_Constants::NCB_nvgRoundedRect:
return ::nvgRoundedRect(ctx, c.data.argsFloats[0], c.data.argsFloats[1], c.data.argsFloats[2], c.data.argsFloats[3], c.data.argsFloats[4]);
//case NCB_Constants::NCB_nvgRoundedRectVarying:
// abort(); // to many args, unused
case NCB_Constants::NCB_nvgEllipse:
return ::nvgEllipse(ctx, c.data.argsFloats[0], c.data.argsFloats[1], c.data.argsFloats[2], c.data.argsFloats[3]);
case NCB_Constants::NCB_nvgCircle:
return ::nvgCircle(ctx, c.data.argsFloats[0], c.data.argsFloats[1], c.data.argsFloats[2]);
case NCB_Constants::NCB_nvgFill:
return ::nvgFill(ctx);
case NCB_Constants::NCB_nvgStroke:
return ::nvgStroke(ctx);
// text
case NCB_Constants::NCB_nvgFontSize:
return ::nvgFontSize(ctx, c.data.argsFloats[0]);
case NCB_Constants::NCB_nvgFontBlur:
return ::nvgFontBlur(ctx, c.data.argsFloats[0]);
case NCB_Constants::NCB_nvgTextLetterSpacing:
return ::nvgTextLetterSpacing(ctx, c.data.argsFloats[0]);
case NCB_Constants::NCB_nvgTextLineHeight:
return ::nvgTextLineHeight(ctx, c.data.argsFloats[0]);
case NCB_Constants::NCB_nvgTextAlign:
return ::nvgTextLineHeight(ctx, c.data.argsInts[0]);
case NCB_Constants::NCB_nvgFontFaceId:
return ::nvgFontFaceId(ctx, c.data.argsInts[0]);
case NCB_Constants::NCB_nvgText:
{
const NCBH_STRING & str = c.data.argsInts[2] >= 0 ? mStrings[c.data.argsInts[2]].c_str() : NCBH_STRING("");
return (void) ::nvgText(ctx, c.data.argsFloats[0], c.data.argsFloats[1], str.c_str(), NULL);
}
case NCB_Constants::NCB_nvgTextBox:
{
const NCBH_STRING & str = c.data.argsInts[3] >= 0 ? mStrings[c.data.argsInts[3]].c_str() : NCBH_STRING("");
return (void) ::nvgTextBox(ctx, c.data.argsFloats[0], c.data.argsFloats[1], c.data.argsFloats[2], str.c_str(), NULL);
}
// gradiants
case NCB_Constants::NCB_nvgLinearGradient:
{
unsigned int idx = c.data.argsInts[0];
if (idx < mGradientGenerators.size())