typedef union {
	float f;
	int i;
} fi_type;
static __inline__ int IS_INF_OR_NAN(float x)
{
	fi_type tmp;
	tmp.f = x;
	return !(int)((unsigned int)((tmp.i & 0x7fffffff) - 0x7f800000) >> 31);
}

struct gl_texture_image {
	unsigned int Width;
	unsigned int Height;
	void *Data;
};
struct gl_renderbuffer {
	void (*PutRowRGB) ();
};
typedef struct {
	float attrib[30][4];
} SWvertex;
typedef struct sw_span {
	int x; int y;
	unsigned int end;
	float attrStepX[30][4];
	int intTex[2]; int intTexStep[2];
} SWspan;
static void simple_textured_triangle(const SWvertex * v1)
{
	const SWvertex *v0;
	const SWvertex *v2;
	typedef struct {
		float dx;
		float dy;
		int fsx;
		int fx0;
		int lines;
	} EdgeT;
	EdgeT eMaj;
	EdgeT eTop;
	EdgeT eBot;
	float oneOverArea;
	const SWvertex *vMin;
	const SWvertex *vMid;
	const SWvertex *vMax;
	int vMin_fx;
	int vMin_fy;
	int vMid_fx;
	int vMid_fy;
	int vMax_fx;
	int vMax_fy;
	SWspan span;
	const int fy0 = v0->attrib[0][1];
	const int fy1 = v1->attrib[0][1];
	const 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[0][0]  >=
		0) ? ((vMid->attrib[0][0]  * (float)2048
) +
			 0.5F) : (((vMid->attrib[0][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));
	const 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;
	struct gl_renderbuffer *rb;
	const struct gl_texture_image *texImg;
	const float twidth;
	const int twidth_log2;
	const unsigned char *texture = texImg->Data;
	const int smask = texImg->Width;
	const int tmask = texImg->Height;
	float eMaj_ds = (vMax->attrib[4][0] - vMin->attrib[4][0]) * twidth;
	float eBot_ds;
	span.attrStepX[4][0] =
	    oneOverArea * (eMaj_ds * eBot.dy - eMaj.dy * eBot_ds);
	span.intTexStep[0] = 
	    (((int)
	      ((((span.attrStepX[4][0]) * (float)2048) >=
		0.0F) ? (((span.attrStepX[4][0]) * (float)2048) +
			 0.5F) : (((span.attrStepX[4][0]) * (float)2048) -
				  0.5F))));
	int subTriangle;
	int fxLeftEdge = 0;
	int fxRightEdge = 0;
	int sLeft = 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) {
			const int right = fxRightEdge ;
			span.x = 0;
			if (right <= span.x)
				span.end = 0;
			else
				span.end = right - span.x;
			span.intTex[0] = 0;
			if (span.end > 0 && span.y >= 0) {
				unsigned int i;
				unsigned char rgb[16384][3];
				for (i = 0; i < span.end; i++) 
{
					int s = span.intTex[0];
					int t = span.intTex[1];
					int pos = (t << twidth_log2)  + s;
					rgb[i][0] = texture[pos ];
					span.intTex[0] += span.intTexStep[0];
				}
				rb->PutRowRGB(rgb);
			}
		}
	}
}

void *foo()
{
	return simple_textured_triangle;
}