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diff --git a/html/en/drv/gl.html b/html/en/drv/gl.html new file mode 100644 index 0000000..2b94b10 --- /dev/null +++ b/html/en/drv/gl.html @@ -0,0 +1,108 @@ +<!doctype HTML PUBLIC "-//IETF//DTD HTML//EN"> +<html> + +<head> +<meta http-equiv="Content-Language" content="en-us"> +<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> +<title>GL</title> +<link rel="stylesheet" type="text/css" href="../../style.css"> +<style type="text/css"> +.style1 { + margin-top: 0px; +} +</style> +</head> + +<body> + +<h2>GL Driver</h2> + + <p>This driver represents a basic driver for all system-dependent drivers + implemented in the X-Windows system using the <a href="http://www.opengl.org/"> + OpenGL</a> SDK. The implementation uses the OpenGL, GLU and GLX API functions. + For the font support, this driver uses the + <a href="http://homepages.paradise.net.nz/henryj/code/index.html#FTGL">FTGL</a> + API functions, which it was written against the + <a href="http://www.freetype.org/">Free Type</a> library.</p> + +<h3>Behavior of Functions</h3> +<h4>Control </h4> +<ul> + <li><a href="../func/other.html#cdPlay"> + <font face="Courier"><strong>Play</strong></font></a>: does nothing, returns + <font face="Courier">CD_ERROR</font>. </li> +</ul> +<h4>Coordinate System and Clipping </h4> +<ul> + <li> + <a href="../func/coordinates.html#cdUpdateYAxis"> + <font face="Courier"><strong>UpdateYAxis</strong></font></a>: does nothing.</li> + <li> + <strong>Clipping</strong>: only support rectangular areas.</li> + <li> + <b>Complex Regions</b>: not supported.</li> +</ul> +<h4>Primitives</h4> +<ul> + <li><a href="../func/lines.html#cdBegin"> + <font face="Courier"><strong>Begin</strong></font></a>: <strong><tt>CD_PATH</tt></strong> + is simulated.</li> + <li>Floating point primitives are supported.</li> +</ul> +<h4>Client Images</h4> +<ul> + <li>Images are bitmaps, and cannot be directly rotated or scaled.</li> +</ul> +<h4>Attributes </h4> +<ul> + <li> + <a href="../func/lines.html#cdLineStyle"> + <font face="Courier"><strong>LineStyle</strong></font></a>: in <strong><tt> + CD_CUSTOM</tt></strong>, style patterns more than 16 bits are not supported.</li> + <li> + <a href="../func/lines.html#cdLineCap"> + <font face="Courier"><strong>LineCap</strong></font></a>: does nothing.</li> + <li> + <a href="../func/lines.html#cdLineJoin"> + <font face="Courier"><strong>LineJoin</strong></font></a>: does nothing.</li> + <li class="style1"> + <a href="../func/filled.html#cdStipple"><font face="Courier"><strong>Stipple</strong></font></a>: + does nothing. There is no support for patterns more than 16 bits.</li> + <li class="style1"> + <a href="../func/filled.html#cdPattern"><font face="Courier"><strong>Pattern</strong></font></a>: + does nothing.</li> + <li class="style1"> + <a href="../func/filled.html#cdFillMode"><font face="Courier"><strong> + FillMode</strong></font></a>: does nothing.</li> + <li> + <a href="../func/text.html#cdNativeFont"> + <font face="Courier"><strong>NativeFont</strong></font></a>: also accepts the + X-Windows font string format.</li> + <li><a href="../func/text.html#cdFont"> + <font face="Courier"><strong>Font</strong></font></a>: "Courier" is mapped to + "Courier New", "Helvetica" is mapped to "Arial", and "Times" is mapped to + "Times New Roman". Underline and Strikeout are NOT supported.</li> +</ul> +<h4>Colors </h4> +<ul> + <li> + <a href="http://www.tecgraf.puc-rio.br/cd/en/func/color.html#cdPalette"> + <font face="Courier"><strong>Palette</strong></font></a>: does nothing.</li> +</ul> +<h4>Exclusive Attributes</h4> + +<ul> + <li>"<b><font face="Courier">ROTATE</font></b>": allows the usage of 1 + angle and 1 coordinate (x, y), that define a global rotation transformation + centered in the specified coordinate. Use 1 real and 2 integer values inside a + string ("%g %d %d" = angle x y).</li> +</ul> + +<ul> + <li><b><font face="Courier">"GLVERSION": </font></b>returns a string with + the OpenGL version or release number. It is empty if the OpenGL is not available.</li> +</ul> + +</body> + +</html> |