docs/sourcetree.html - platform/external/chromium_org/third_party/mesa/src - Git at Google

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 <h1>Mesa source code tree overview</h1>

 <p>
 This is a brief summary of Mesa's directory tree and what's contained in
 each directory.
 </p>


 <ul>
 <li><b>docs</b> - Documentation
 <li><b>include</b> - Public OpenGL header files
 <li><b>src</b>
   <ul>
   <li><b>egl</b> - EGL library sources
     <ul>
     <li><b>docs</b> - EGL documentation
     <li><b>drivers</b> - EGL drivers
     <li><b>glsl</b> - the GLSL compiler
     <li><b>main</b> - main EGL library implementation.  This is where all
         the EGL API functions are implemented, like eglCreateContext().
     </ul>
   <li><b>mesa</b> - Main Mesa sources
     <ul>
     <li><b>glapi</b> - OpenGL API dispatch layer.  This is where all the
         GL entrypoints like glClear, glBegin, etc. are generated, as well as
         the GL dispatch table.  All GL function calls jump through the
         dispatch table to functions found in main/.
     <li><b>main</b> - The core Mesa code (mainly state management)
     <li><b>drivers</b> - Mesa drivers (not used with Gallium)
         <ul>
 	<li><b>common</b> - code which may be shared by all drivers
         <li><b>dri</b> - Direct Rendering Infrastructure drivers
            <ul>
 	   <li><b>common</b> - code shared by all DRI drivers
 	   <li><b>i915</b> - driver for Intel i915/i945
 	   <li><b>i965</b> - driver for Intel i965
 	   <li><b>radeon</b> - driver for ATI R100
 	   <li><b>r200</b> - driver for ATI R200
 	   <li>XXX more
            </ul>
         <li><b>x11</b> - Xlib-based software driver
         <li><b>osmesa</b> - off-screen software driver
 	<li><b>glslcompiler</b> - a stand-alone GLSL compiler driver
         <li>XXX more
         </ul>
     <li><b>es</b> - OpenGL ES overlay, parallelly buildable with the core Mesa
     <li><b>math</b> - vertex array translation and transformation code
         (not used with Gallium)
     <li><b>ppc</b> - Assembly code/optimizations for PPC systems
         (not used with Gallium)
     <li><b>shader</b> - Vertex/fragment shader and GLSL compiler code
     <li><b>sparc</b> - Assembly code/optimizations for SPARC systems
         (not used with Gallium)
     <li><b>state_tracker</b> - State tracker / driver for Gallium.  This
         is basically a Mesa device driver that speaks to Gallium.  This
         directory may be moved to src/mesa/drivers/gallium at some point.
     <li><b>swrast</b> - Software rasterization module.  For drawing points,
         lines, triangles, bitmaps, images, etc. in software.
         (not used with Gallium)
     <li><b>swrast_setup</b> - Software primitive setup.  Does things like
         polygon culling, glPolygonMode, polygon offset, etc.
         (not used with Gallium)
     <li><b>tnl</b> - Software vertex Transformation 'n Lighting.
         (not used with Gallium)
     <li><b>tnl_dd</b> - TNL code for device drivers.
         (not used with Gallium)
     <li><b>vbo</b> - Vertex Buffer Object code.  All drawing with
         glBegin/glEnd, glDrawArrays, display lists, etc. goes through this
         module.  The results is a well-defined set of vertex arrays which
         are passed to the device driver (or tnl module) for rendering.
     <li><b>vf</b> - vertex format conversion (currently unused)
     <li><b>x86</b> - Assembly code/optimizations for 32-bit x86 systems
         (not used with Gallium)
     <li><b>x86-64</b> - Assembly code/optimizations for 64-bit x86 systems
         (not used with Gallium)
     </ul>
   <li><b>gallium</b> - Gallium3D source code
     <ul>
     <li><b>include</b> - Gallium3D header files which define the Gallium3D
         interfaces
     <li><b>drivers</b> - Gallium3D device drivers
       <ul>
       <li><b>i915</b> - Driver for Intel i915/i945.
       <li><b>llvmpipe</b> - Software driver using LLVM for runtime code generation.
       <li><b>nv*</b> - Drivers for NVIDIA GPUs.
       <li><b>radeonsi</b> - Driver for AMD Southern Island.
       <li><b>r300</b> - Driver for ATI R300 - R500.
       <li><b>r600</b> - Driver for ATI/AMD R600 - Northern Island.
       <li><b>softpipe</b> - Software reference driver.
       <li><b>svga</b> - Driver for VMware's SVGA virtual GPU.
       <li><b>trace</b> - Driver for tracing Gallium calls.
       <li>XXX more
       </ul>
     <li><b>auxiliary</b> - Gallium support code
       <ul>
       <li><b>draw</b> - Software vertex processing and primitive assembly
           module.  This includes vertex program execution, clipping, culling
           and optional stages for drawing wide lines, stippled lines,
           polygon stippling, two-sided lighting, etc.
           Intended for use by drivers for hardware that does not have
           vertex shaders.
           Geometry shaders will also be implemented in this module.
       <li><b>cso_cache</b> - Constant State Objects Cache.  Used to filter out
           redundant state changes between state trackers and drivers.
       <li><b>gallivm</b> - LLVM module for Gallium.  For LLVM-based
            compilation, optimization and code generation for TGSI shaders.
            Incomplete.
       <li><b>pipebuffer</b> - utility module for managing buffers
       <li><b>rbug</b> - Gallium remote debug utility
       <li><b>rtasm</b> - run-time assembly/machine code generation.
           Currently there's run-time code generation for x86/SSE, PowerPC
           and Cell SPU.
       <li><b>tgsi</b> - TG Shader Infrastructure.  Code for encoding,
           manipulating and interpretting GPU programs.
       <li><b>translate</b> - module for translating vertex data from one format
           to another.
       <li><b>util</b> - assorted utilities for arithmetic, hashing, surface
           creation, memory management, 2D blitting, simple rendering, etc.
       </ul>
     <li><b>state_trackers</b> -
        <ul>
        <li><b>dri</b> - Meta state tracker for DRI drivers
        <li><b>egl</b> - Meta state tracker for EGL drivers
        <li><b>es</b> - OpenGL ES 1.x and 2.x state trackers
        <li><b>glx</b> - Meta state tracker for GLX
        <li><b>vdpau</b> - VDPAU state tracker
        <li><b>vega</b> - OpenVG 1.x state tracker
        <li><b>wgl</b> -
        <li><b>xorg</b> - Meta state tracker for Xorg video drivers
        </ul>
     <li><b>winsys</b> -
        <ul>
        <li><b>drm</b> -
        <li><b>gdi</b> -
        <li><b>xlib</b> -
        </ul>
     </ul>
   </ul>
   <ul>
   <li><b>glx</b> - The GLX library code for building libGL.  This is used for
          direct rendering drivers.  It will dynamically load one of the
          xxx_dri.so drivers.
   </ul>
 <li><b>progs</b> - OpenGL test and demonstration programs
 <li><b>lib</b> - where the GL libraries are placed
 </ul>


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	<!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>Mesa Source Tree</title>
	<link rel="stylesheet" type="text/css" href="mesa.css">
	</head>
	<body>

	<h1>Mesa source code tree overview</h1>

	<p>
	This is a brief summary of Mesa's directory tree and what's contained in
	each directory.
	</p>


	<ul>
	<li><b>docs</b> - Documentation
	<li><b>include</b> - Public OpenGL header files
	<li><b>src</b>
	<ul>
	<li><b>egl</b> - EGL library sources
	<ul>
	<li><b>docs</b> - EGL documentation
	<li><b>drivers</b> - EGL drivers
	<li><b>glsl</b> - the GLSL compiler
	<li><b>main</b> - main EGL library implementation. This is where all
	the EGL API functions are implemented, like eglCreateContext().
	</ul>
	<li><b>mesa</b> - Main Mesa sources
	<ul>
	<li><b>glapi</b> - OpenGL API dispatch layer. This is where all the
	GL entrypoints like glClear, glBegin, etc. are generated, as well as
	the GL dispatch table. All GL function calls jump through the
	dispatch table to functions found in main/.
	<li><b>main</b> - The core Mesa code (mainly state management)
	<li><b>drivers</b> - Mesa drivers (not used with Gallium)
	<ul>
	<li><b>common</b> - code which may be shared by all drivers
	<li><b>dri</b> - Direct Rendering Infrastructure drivers
	<ul>
	<li><b>common</b> - code shared by all DRI drivers
	<li><b>i915</b> - driver for Intel i915/i945
	<li><b>i965</b> - driver for Intel i965
	<li><b>radeon</b> - driver for ATI R100
	<li><b>r200</b> - driver for ATI R200
	<li>XXX more
	</ul>
	<li><b>x11</b> - Xlib-based software driver
	<li><b>osmesa</b> - off-screen software driver
	<li><b>glslcompiler</b> - a stand-alone GLSL compiler driver
	<li>XXX more
	</ul>
	<li><b>es</b> - OpenGL ES overlay, parallelly buildable with the core Mesa
	<li><b>math</b> - vertex array translation and transformation code
	(not used with Gallium)
	<li><b>ppc</b> - Assembly code/optimizations for PPC systems
	(not used with Gallium)
	<li><b>shader</b> - Vertex/fragment shader and GLSL compiler code
	<li><b>sparc</b> - Assembly code/optimizations for SPARC systems
	(not used with Gallium)
	<li><b>state_tracker</b> - State tracker / driver for Gallium. This
	is basically a Mesa device driver that speaks to Gallium. This
	directory may be moved to src/mesa/drivers/gallium at some point.
	<li><b>swrast</b> - Software rasterization module. For drawing points,
	lines, triangles, bitmaps, images, etc. in software.
	(not used with Gallium)
	<li><b>swrast_setup</b> - Software primitive setup. Does things like
	polygon culling, glPolygonMode, polygon offset, etc.
	(not used with Gallium)
	<li><b>tnl</b> - Software vertex Transformation 'n Lighting.
	(not used with Gallium)
	<li><b>tnl_dd</b> - TNL code for device drivers.
	(not used with Gallium)
	<li><b>vbo</b> - Vertex Buffer Object code. All drawing with
	glBegin/glEnd, glDrawArrays, display lists, etc. goes through this
	module. The results is a well-defined set of vertex arrays which
	are passed to the device driver (or tnl module) for rendering.
	<li><b>vf</b> - vertex format conversion (currently unused)
	<li><b>x86</b> - Assembly code/optimizations for 32-bit x86 systems
	(not used with Gallium)
	<li><b>x86-64</b> - Assembly code/optimizations for 64-bit x86 systems
	(not used with Gallium)
	</ul>
	<li><b>gallium</b> - Gallium3D source code
	<ul>
	<li><b>include</b> - Gallium3D header files which define the Gallium3D
	interfaces
	<li><b>drivers</b> - Gallium3D device drivers
	<ul>
	<li><b>i915</b> - Driver for Intel i915/i945.
	<li><b>llvmpipe</b> - Software driver using LLVM for runtime code generation.
	<li><b>nv*</b> - Drivers for NVIDIA GPUs.
	<li><b>radeonsi</b> - Driver for AMD Southern Island.
	<li><b>r300</b> - Driver for ATI R300 - R500.
	<li><b>r600</b> - Driver for ATI/AMD R600 - Northern Island.
	<li><b>softpipe</b> - Software reference driver.
	<li><b>svga</b> - Driver for VMware's SVGA virtual GPU.
	<li><b>trace</b> - Driver for tracing Gallium calls.
	<li>XXX more
	</ul>
	<li><b>auxiliary</b> - Gallium support code
	<ul>
	<li><b>draw</b> - Software vertex processing and primitive assembly
	module. This includes vertex program execution, clipping, culling
	and optional stages for drawing wide lines, stippled lines,
	polygon stippling, two-sided lighting, etc.
	Intended for use by drivers for hardware that does not have
	vertex shaders.
	Geometry shaders will also be implemented in this module.
	<li><b>cso_cache</b> - Constant State Objects Cache. Used to filter out
	redundant state changes between state trackers and drivers.
	<li><b>gallivm</b> - LLVM module for Gallium. For LLVM-based
	compilation, optimization and code generation for TGSI shaders.
	Incomplete.
	<li><b>pipebuffer</b> - utility module for managing buffers
	<li><b>rbug</b> - Gallium remote debug utility
	<li><b>rtasm</b> - run-time assembly/machine code generation.
	Currently there's run-time code generation for x86/SSE, PowerPC
	and Cell SPU.
	<li><b>tgsi</b> - TG Shader Infrastructure. Code for encoding,
	manipulating and interpretting GPU programs.
	<li><b>translate</b> - module for translating vertex data from one format
	to another.
	<li><b>util</b> - assorted utilities for arithmetic, hashing, surface
	creation, memory management, 2D blitting, simple rendering, etc.
	</ul>
	<li><b>state_trackers</b> -
	<ul>
	<li><b>dri</b> - Meta state tracker for DRI drivers
	<li><b>egl</b> - Meta state tracker for EGL drivers
	<li><b>es</b> - OpenGL ES 1.x and 2.x state trackers
	<li><b>glx</b> - Meta state tracker for GLX
	<li><b>vdpau</b> - VDPAU state tracker
	<li><b>vega</b> - OpenVG 1.x state tracker
	<li><b>wgl</b> -
	<li><b>xorg</b> - Meta state tracker for Xorg video drivers
	</ul>
	<li><b>winsys</b> -
	<ul>
	<li><b>drm</b> -
	<li><b>gdi</b> -
	<li><b>xlib</b> -
	</ul>
	</ul>
	</ul>
	<ul>
	<li><b>glx</b> - The GLX library code for building libGL. This is used for
	direct rendering drivers. It will dynamically load one of the
	xxx_dri.so drivers.
	</ul>
	<li><b>progs</b> - OpenGL test and demonstration programs
	<li><b>lib</b> - where the GL libraries are placed
	</ul>


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