src/FcTest_pixelField.h - master - vTech/FcApps

src/FcTest_pixelField.h
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vTech
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03 дек 2025, 17:45
03 дек 2025, 17:45ab8382d
#ifndef _FCTEST_FONT_PIXEL_FIELD_H_
#define _FCTEST_FONT_PIXEL_FIELD_H_

#define STEP 16
#define FSTEP (1 / (STEP))

#include "FcUI_Raster_Primitive.h"


FCDEF float FcStep(float step, float x) {
	return x < step ? 0 : 1;
}

FCDEF float FcFract(float x) {
	return x - (size_t)x;
}

FCDEF float FcClamp(float x, float minVal, float maxVal) {
	return min(max(x, minVal), maxVal);
}

FCDEF float FcSmoothstep(float edge0, float edge1, float x) {
	float t = FcClamp((x - edge0) / (edge1 - edge0), 0.0, 1.0);
	return t * t * (3.0 - 2.0 * t);
}

FCDEF float FcMod(float x, float y) {
	return x - y * floor(x / y);
}

FCDEF FcVec2f_t FcFloor_v2f(FcVec2f_t a) {
	return FcVec2f(floor(a.m[0]), floor(a.m[1]));
}

FCDEF FcVec2f_t FcCeil_v2f(FcVec2f_t a) {
	return FcVec2f(ceil(a.m[0]), ceil(a.m[1]));
}
FCDEF FcVec2i64_t FcCeil_v2i64(FcVec2i64_t a) {
	return FcVec2i64(ceil(a.m[0]), ceil(a.m[1]));
}

FCDEF FcVec2f_t FcMod_v2f(FcVec2f_t x, FcVec2f_t y) {
	return FcVec2f_sub(x, FcVec2f_mul(y, FcFloor_v2f(FcVec2f_div(x, y))));
}
FCDEF FcVec2f_t FcAbs_v2f(FcVec2f_t x) {
	return FcVec2f(abs(x.m[0]), abs(x.m[1]));
}

FCDEF float FcGrid(FcVec2f_t xy, float space, float gridWidth)
{
	FcVec2f_t p = FcVec2f_sub(xy, FcVec2f(.5, .5));
	FcVec2f_t size = FcVec2f(gridWidth, gridWidth);

	float a0 = FcMod(FcVec2f_sub(p, size).m[0], space);
	float a1 = FcMod(FcVec2f_sub(p, size).m[1], space);
	float a2 = FcMod(FcVec2f_add(p, size).m[0], space);
	float a3 = FcMod(FcVec2f_add(p, size).m[1], space);
	float b0 = a3 - a1;
	float b1 = a2 - a0;

	float g = min(b0, b1);
	return FcClamp(g, 0., 1.0);
}

FCDEF void FcTest_Font_pixelField_init(FcUI_Raster_Primitive_pixelPoints_t* pPixelPoints);
FCDEF void FcTest_Font_pixelField_pointOnCurve(FcUI_Raster_Primitive_pixelPoints_t* pVectorField, FcImage_RGBA_t* pImage, size_t mMouseX, size_t mMouseY);
FCDEF void FcTest_Font_pixelField_pointOffCurve(FcUI_Raster_Primitive_pixelPoints_t* pVectorField, FcImage_RGBA_t* pImage, size_t mMouseX, size_t mMouseY);

FCDEF void FcTest_Font_pixelField_init(FcUI_Raster_Primitive_pixelPoints_t* pPixelPoints) {
	FcUI_Raster_Primitive_pixelPoints(pPixelPoints);
}


FCDEF void FcTest_Font_pixelField_pointOnCurve(FcUI_Raster_Primitive_pixelPoints_t* pVectorField, FcImage_RGBA_t* pImage, size_t mMouseX, size_t mMouseY) {
	FcVec2i64_t mData = FcVec2i64((mMouseX % STEP) > 1 ? 1 : 0, (mMouseY % STEP) > 1 ? 1 : 0);

	mData = FcVec2i64_add(FcVec2i64(mMouseX / STEP, mMouseY / STEP), mData);
	mData = FcVec2i64_mul(mData, FcVec2i64(STEP, STEP));
	mData = FcVec2i64_sub(mData, FcVec2i64(STEP / 2, STEP / 2));
	FcUI_Raster_Primitive_addOnPoint_lc2(pVectorField, mData);

}

FCDEF void FcTest_Font_pixelField_pointOffCurve(FcUI_Raster_Primitive_pixelPoints_t* pVectorField, FcImage_RGBA_t* pImage, size_t mMouseX, size_t mMouseY) {
	FcVec2i64_t mData = FcVec2i64((mMouseX % STEP) > 1 ? 1 : 0, (mMouseY % STEP) > 1 ? 1 : 0);

	mData = FcVec2i64_add(FcVec2i64(mMouseX / STEP, mMouseY / STEP), mData);
	mData = FcVec2i64_mul(mData, FcVec2i64(STEP, STEP));
	mData = FcVec2i64_sub(mData, FcVec2i64(STEP / 2, STEP / 2));
	FcUI_Raster_Primitive_addOffPoint_lc2(pVectorField, mData);


}

FCDEF void FcTest_Font_pixelField_draw(FcUI_Raster_Primitive_pixelPoints_t* pVectorField, FcImage_RGBA_t* pImage) {
	FcImage_RGBA_setColor(pImage, 0, 0, 0, 255);
	FcUI_Raster_Primitive_lc2(pImage, pVectorField);
	FcUI_Raster_Primitive_filling_lc2(pImage, pVectorField);
	FcUI_Raster_Primitive_drawPoints_lc2(pImage, pVectorField);
}
#endif //_FCTEST_FONT_PIXEL_FIELD_H_