#include "dvr_triangle.h"
#include "pipe/dvc_rasterizer.h"

void Triangle::build(const davinci::fVector3& _pixelColor, int32_t canvasWidth, int32_t canvasHeight, bool debug)
{
	pixelColor = _pixelColor;
	pixels.clear();

	//make sure it's cw
	bool ccw = false;
	if ((p2 - p1).crossProduct(p0 - p2).z > 0) {
		ccw = true;
	}

	//build pixel data
	davinci::Rasterizer::drawTriangleLarrabee(canvasWidth, canvasHeight,
		p0.xy(), p1.xy(), p2.xy(),
		[this](std::pair<int32_t, int32_t> pos, const davinci::fVector3& t) 
		{
			pixels.push_back(pos);
		},
		ccw
	);
}