Function drawRoundedRect

demo/d3d11/imguiGraph.cpp:153–187

*/

static void drawRoundedRect(float x, float y, float w, float h, float r, float fth, unsigned int col)
{
	const unsigned n = CIRCLE_VERTS / 4;
	float verts[(n + 1) * 4 * 2];
	const float* cverts = g_circleVerts;
	float* v = verts;

	for (unsigned i = 0; i <= n; ++i)
	{
		*v++ = x + w - r + cverts[i * 2] * r;
		*v++ = y + h - r + cverts[i * 2 + 1] * r;
	}

	for (unsigned i = n; i <= n * 2; ++i)
	{
		*v++ = x + r + cverts[i * 2] * r;
		*v++ = y + h - r + cverts[i * 2 + 1] * r;
	}

	for (unsigned i = n * 2; i <= n * 3; ++i)
	{
		*v++ = x + r + cverts[i * 2] * r;
		*v++ = y + r + cverts[i * 2 + 1] * r;
	}

	for (unsigned i = n * 3; i < n * 4; ++i)
	{
		*v++ = x + w - r + cverts[i * 2] * r;
		*v++ = y + r + cverts[i * 2 + 1] * r;
	}
	*v++ = x + w - r + cverts[0] * r;
	*v++ = y + r + cverts[1] * r;

	drawPolygon(verts, (n + 1) * 4, fth, col);
}


static void drawLine(float x0, float y0, float x1, float y1, float r, float fth, unsigned int col)