diff options
| author | Jonathan Gray <jsg@cvs.openbsd.org> | 2017-08-26 16:59:42 +0000 |
|---|---|---|
| committer | Jonathan Gray <jsg@cvs.openbsd.org> | 2017-08-26 16:59:42 +0000 |
| commit | 81ece42815e80818f160cdd85fab57d65b56ad15 (patch) | |
| tree | 1059ff094da1aa50334115952fcb1cfcbda3acc6 /lib/mesa/docs/codingstyle.html | |
| parent | b0244145d5bb49623d58f6b5cab8143ada692b60 (diff) | |
Revert to Mesa 13.0.6 to hopefully address rendering issues a handful of
people have reported with xpdf/fvwm on ivy bridge with modesetting driver.
Diffstat (limited to 'lib/mesa/docs/codingstyle.html')
| -rw-r--r-- | lib/mesa/docs/codingstyle.html | 142 |
1 files changed, 0 insertions, 142 deletions
diff --git a/lib/mesa/docs/codingstyle.html b/lib/mesa/docs/codingstyle.html deleted file mode 100644 index 7e9f470a1..000000000 --- a/lib/mesa/docs/codingstyle.html +++ /dev/null @@ -1,142 +0,0 @@ -<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> -<html lang="en"> -<head> - <meta http-equiv="content-type" content="text/html; charset=utf-8"> - <title>Coding Style</title> - <link rel="stylesheet" type="text/css" href="mesa.css"> -</head> -<body> - -<div class="header"> - <h1>The Mesa 3D Graphics Library</h1> -</div> - -<iframe src="contents.html"></iframe> -<div class="content"> - -<h1>Coding Style</h1> - -<p> -Mesa is over 20 years old and the coding style has evolved over time. -Some old parts use a style that's a bit out of date. - -Different sections of mesa can use different coding style as set in the local -EditorConfig (.editorconfig) and/or Emacs (.dir-locals.el) file. - -Alternatively the following is applicable. - -If the guidelines below don't cover something, try following the format of -existing, neighboring code. -</p> - -<p> -Basic formatting guidelines -</p> - -<ul> -<li>3-space indentation, no tabs. -<li>Limit lines to 78 or fewer characters. The idea is to prevent line -wrapping in 80-column editors and terminals. There are exceptions, such -as if you're defining a large, static table of information. -<li>Opening braces go on the same line as the if/for/while statement. -For example: -<pre> - if (condition) { - foo; - } else { - bar; - } -</pre> - -<li>Put a space before/after operators. For example, <tt>a = b + c;</tt> -and not <tt>a=b+c;</tt> - -<li>This GNU indent command generally does the right thing for formatting: -<pre> - indent -br -i3 -npcs --no-tabs infile.c -o outfile.c -</pre> - -<li>Use comments wherever you think it would be helpful for other developers. -Several specific cases and style examples follow. Note that we roughly -follow <a href="https://www.stack.nl/~dimitri/doxygen/">Doxygen</a> conventions. -<br> -<br> -Single-line comments: -<pre> - /* null-out pointer to prevent dangling reference below */ - bufferObj = NULL; -</pre> -Or, -<pre> - bufferObj = NULL; /* prevent dangling reference below */ -</pre> -Multi-line comment: -<pre> - /* If this is a new buffer object id, or one which was generated but - * never used before, allocate a buffer object now. - */ -</pre> -We try to quote the OpenGL specification where prudent: -<pre> - /* Page 38 of the PDF of the OpenGL ES 3.0 spec says: - * - * "An INVALID_OPERATION error is generated for any of the following - * conditions: - * - * * <length> is zero." - * - * Additionally, page 94 of the PDF of the OpenGL 4.5 core spec - * (30.10.2014) also says this, so it's no longer allowed for desktop GL, - * either. - */ -</pre> -Function comment example: -<pre> - /** - * Create and initialize a new buffer object. Called via the - * ctx->Driver.CreateObject() driver callback function. - * \param name integer name of the object - * \param type one of GL_FOO, GL_BAR, etc. - * \return pointer to new object or NULL if error - */ - struct gl_object * - _mesa_create_object(GLuint name, GLenum type) - { - /* function body */ - } -</pre> - -<li>Put the function return type and qualifiers on one line and the function -name and parameters on the next, as seen above. This makes it easy to use -<code>grep ^function_name dir/*</code> to find function definitions. Also, -the opening brace goes on the next line by itself (see above.) - -<li>Function names follow various conventions depending on the type of function: -<pre> - glFooBar() - a public GL entry point (in glapi_dispatch.c) - _mesa_FooBar() - the internal immediate mode function - save_FooBar() - retained mode (display list) function in dlist.c - foo_bar() - a static (private) function - _mesa_foo_bar() - an internal non-static Mesa function -</pre> - -<li>Constants, macros and enum names are ALL_UPPERCASE, with _ between -words. -<li>Mesa usually uses camel case for local variables (Ex: "localVarname") -while gallium typically uses underscores (Ex: "local_var_name"). -<li>Global variables are almost never used because Mesa should be thread-safe. - -<li>Booleans. Places that are not directly visible to the GL API -should prefer the use of <tt>bool</tt>, <tt>true</tt>, and -<tt>false</tt> over <tt>GLboolean</tt>, <tt>GL_TRUE</tt>, and -<tt>GL_FALSE</tt>. In C code, this may mean that -<tt>#include <stdbool.h></tt> needs to be added. The -<tt>try_emit_</tt>* methods in src/mesa/program/ir_to_mesa.cpp and -src/mesa/state_tracker/st_glsl_to_tgsi.cpp can serve as examples. - -</ul> -</p> - -</div> -</body> -</html> |