Method debug_text

engine/dlib/src/basis/encoder/basisu_enc.cpp:2055–2105

	}

	void image::debug_text(uint32_t x_ofs, uint32_t y_ofs, uint32_t scale_x, uint32_t scale_y, const color_rgba& fg, const color_rgba* pBG, bool alpha_only, const char* pFmt, ...)
	{
		char buf[2048];

		va_list args;
		va_start(args, pFmt);
#ifdef _WIN32		
		vsprintf_s(buf, sizeof(buf), pFmt, args);
#else
		vsnprintf(buf, sizeof(buf), pFmt, args);
#endif
		va_end(args);

		const char* p = buf;

		const uint32_t orig_x_ofs = x_ofs;

		while (*p)
		{
			uint8_t c = *p++;
			if ((c < 32) || (c > 127))
				c = '.';

			const uint8_t* pGlpyh = &g_debug_font8x8_basic[c - 32][0];

			for (uint32_t y = 0; y < 8; y++)
			{
				uint32_t row_bits = pGlpyh[y];
				for (uint32_t x = 0; x < 8; x++)
				{
					const uint32_t q = row_bits & (1 << x);
										
					const color_rgba* pColor = q ? &fg : pBG;
					if (!pColor)
						continue;

					if (alpha_only)
						fill_box_alpha(x_ofs + x * scale_x, y_ofs + y * scale_y, scale_x, scale_y, *pColor);
					else
						fill_box(x_ofs + x * scale_x, y_ofs + y * scale_y, scale_x, scale_y, *pColor);
				}
			}

			x_ofs += 8 * scale_x;
			if ((x_ofs + 8 * scale_x) > m_width)
			{
				x_ofs = orig_x_ofs;
				y_ofs += 8 * scale_y;
			}
		}
	}
		
} // namespace basisu