static __inline__ int IS_INF_OR_NAN(float x)
{
	union {
		float f;
		int i;
	} tmp;
	tmp.f = x;
	return tmp.i;
}

typedef struct {
	float **attrib;
} SWvertex;
typedef struct sw_span {
	int x;
	int y;
	int end;
	float attrStepX[30][4];
	int intTex[2];
	int intTexStep[2];
} SWspan;
static void simple_textured_triangle( SWvertex * v1)
{
	SWvertex *v0;
	SWvertex *v2;
	typedef struct {
		float dx;
		float dy;
		int fsx;
		int fx0;
		int lines;
	} EdgeT;
	EdgeT eMaj;
	EdgeT eTop;
	EdgeT eBot;
	float oneOverArea;
	SWvertex *vMin;
	SWvertex *vMid;
	SWvertex *vMax;
	int vMin_fx;
	int vMin_fy;
	int vMid_fx;
	int vMid_fy;
	int vMax_fx;
	int vMax_fy;
	SWspan span;
	 int fy0 = v0->attrib[0][1];
	 int fy1 = v1->attrib[0][1];
	 int fy2 = v2->attrib[0][1];
	if (fy1 <= fy2) {
		vMin = v0;
		vMax = v1;
		vMin_fy = fy0;
	}
	vMin_fx = vMin->attrib[0][0];
	vMid_fx = (int)
	      (vMid->attrib[4][0] ? 
((vMid->attrib[4][0] * (float)2048) + 0.5F) : 
((vMid->attrib[4][0] * (float)2048) - 0.5F));
	eMaj.dx = (vMax_fx - vMin_fx) * (1.0F / (float)2048);
	eMaj.dy = (vMax_fy - vMin_fy) * (1.0F / (float)2048);
	eTop.dx = (vMax_fx - vMid_fx) * (1.0F / (float)2048);
	eBot.dy = (vMid_fy - vMin_fy) * (1.0F / (float)2048);
	float area = eMaj.dx * eBot.dy - eBot.dx * eMaj.dy;
	if (IS_INF_OR_NAN(area))
		return;
	oneOverArea = 1.0F / area;
	eBot.fx0 = vMin_fx;
	int scan_from_left_to_right;
	void (*PutRowRGB)();
	char *texture;
	float eMaj_ds = (vMax->attrib[4][0] - vMin->attrib[4][0]);
	float eBot_ds;
	span.attrStepX[4][0] =
	    oneOverArea * (eMaj_ds * eBot.dy - eMaj.dy * eBot_ds);
	span.intTexStep[0] =
	    (int)
	      ((span.attrStepX[4][0] >=
		0.0F) ? span.attrStepX[4][0] :
(span.attrStepX[4][0] * (float)2048) - 0.5F);
	int subTriangle;
	int fxRightEdge = 0;
	for (subTriangle = 0; subTriangle <= 1; subTriangle++) {
		EdgeT *eRight;
		int lines;
		if (subTriangle == 0) {
			if (scan_from_left_to_right) {
				eRight = &eBot;
				lines = eRight->lines;
			} else {
				eRight = &eMaj;
			}
		} else {
			if (scan_from_left_to_right) {
				eRight = &eTop;
			}
			fxRightEdge = eRight->fsx;
		}
		while (lines > 0) {
			span.x = 0;
			if (fxRightEdge <= span.x)
				span.end = 0;
			else
				span.end = fxRightEdge - span.x;
			span.intTex[0] = 0;
			if (span.end > 0 && span.y >= 0) {
				int i;
				char *rgb;
				for (i = 0; i < span.end; i++) {
					rgb[i] = texture[span.intTex[0]];
					span.intTex[0] += span.intTexStep[0];
				}
				PutRowRGB(rgb);
			}
		}
	}
}

void *foo()
{
	return simple_textured_triangle;
}