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Diffstat (limited to 'docs')
| -rw-r--r-- | docs/shading.html | 70 |
1 files changed, 27 insertions, 43 deletions
diff --git a/docs/shading.html b/docs/shading.html index 2cd17c76ac9..b77745fbf37 100644 --- a/docs/shading.html +++ b/docs/shading.html @@ -15,23 +15,46 @@ OpenGL Shading Language</a>. </p> <p> -Last updated on 28 March 2007. +Last updated on 15 December 2008. </p> <p> Contents </p> <ul> +<li><a href="#120">GLSL 1.20 support</a> <li><a href="#unsup">Unsupported Features</a> <li><a href="#notes">Implementation Notes</a> <li><a href="#hints">Programming Hints</a> <li><a href="#standalone">Stand-alone GLSL Compiler</a> <li><a href="#implementation">Compiler Implementation</a> <li><a href="#validation">Compiler Validation</a> -<li><a href="#120">GLSL 1.20 support</a> </ul> + +<a name="120"> +<h2>GLSL 1.20 support</h2> + +<p> +GLSL version 1.20 is supported in Mesa 7.3. +Among the features/differences of GLSL 1.20 are: +<ul> +<li><code>mat2x3, mat2x4</code>, etc. types and functions +<li><code>transpose(), outerProduct(), matrixCompMult()</code> functions +(but untested) +<li>precision qualifiers (lowp, mediump, highp) +<li><code>invariant</code> qualifier +<li><code>array.length()</code> method +<li><code>float[5] a;</code> array syntax +<li><code>centroid</code> qualifier +<li>unsized array constructors +<li>initializers for uniforms +<li>const initializers calling built-in functions +</ul> + + + <a name="unsup"> <h2>Unsupported Features</h2> @@ -41,15 +64,10 @@ in Mesa: </p> <ul> -<li>Dereferencing arrays with non-constant indexes -<li>Comparison of user-defined structs <li>Linking of multiple shaders is not supported <li>gl_ClipVertex -<li>The derivative functions such as dFdx() are not implemented -<li>The inverse trig functions asin(), acos(), and atan() are not implemented <li>The gl_Color and gl_SecondaryColor varying vars are interpolated without perspective correction -<li>Floating point literal suffixes 'f' and 'F' aren't allowed. </ul> <p> @@ -304,11 +322,11 @@ Extra NOP instructions will also be inserted. <h2>Compiler Validation</h2> <p> -A new <a href="http://glean.sf.net" target="_parent">Glean</a> test has +A <a href="http://glean.sf.net" target="_parent">Glean</a> test has been create to exercise the GLSL compiler. </p> <p> -The <em>glsl1</em> test runs over 150 sub-tests to check that the language +The <em>glsl1</em> test runs over 170 sub-tests to check that the language features and built-in functions work properly. This test should be run frequently while working on the compiler to catch regressions. @@ -319,39 +337,5 @@ should be added. </p> - -<a name="120"> -<h2>GLSL 1.20 support</h2> - -<p> -Support for GLSL version 1.20 is underway. Status as follows. -</p> - -<h3>Supported</h3> -<ul> -<li><code>mat2x3, mat2x4</code>, etc. types and functions -<li><code>transpose(), outerProduct(), matrixCompMult()</code> functions -(but untested) -<li>precision qualifiers (lowp, mediump, highp) -</ul> - -<h3>Partially Complete</h3> -<ul> -<li><code>invariant</code> qualifier -</ul> - -<h3>Not Completed</h3> -<ul> -<li><code>array.length()</code> method -<li><code>float[5] a;</code> array syntax -<li><code>centroid</code> qualifier -<li>unsized array constructors -<li>initializers for uniforms -<li>const initializers calling built-in functions -</ul> - - - - </BODY> </HTML> |