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5848b8605Smrg  <title>Mesa Source Tree</title>
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11848b8605Smrg  <h1>The Mesa 3D Graphics Library</h1>
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17848b8605Smrg<h1>Mesa source code tree overview</h1>
18848b8605Smrg
19848b8605Smrg<p>
20848b8605SmrgThis is a brief summary of Mesa's directory tree and what's contained in
21848b8605Smrgeach directory.
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24848b8605Smrg
25848b8605Smrg<ul>
26848b8605Smrg<li><b>docs</b> - Documentation
27848b8605Smrg<li><b>include</b> - Public OpenGL header files
28848b8605Smrg<li><b>src</b>
29848b8605Smrg  <ul>
30848b8605Smrg  <li><b>egl</b> - EGL library sources
31848b8605Smrg    <ul>
32848b8605Smrg    <li><b>docs</b> - EGL documentation
33848b8605Smrg    <li><b>drivers</b> - EGL drivers
34848b8605Smrg    <li><b>main</b> - main EGL library implementation.  This is where all
35848b8605Smrg        the EGL API functions are implemented, like eglCreateContext().
36848b8605Smrg    </ul>
37848b8605Smrg  <li><b>glsl</b> - the GLSL compiler
38848b8605Smrg  <li><b>mapi</b> - Mesa APIs
39848b8605Smrg    <li><b>glapi</b> - OpenGL API dispatch layer.  This is where all the
40848b8605Smrg        GL entrypoints like glClear, glBegin, etc. are generated, as well as
41848b8605Smrg        the GL dispatch table.  All GL function calls jump through the
42848b8605Smrg        dispatch table to functions found in main/.
43848b8605Smrg  <li><b>mesa</b> - Main Mesa sources
44848b8605Smrg    <ul>
45848b8605Smrg    <li><b>main</b> - The core Mesa code (mainly state management)
46848b8605Smrg    <li><b>drivers</b> - Mesa drivers (not used with Gallium)
47848b8605Smrg        <ul>
48848b8605Smrg	<li><b>common</b> - code which may be shared by all drivers
49848b8605Smrg        <li><b>dri</b> - Direct Rendering Infrastructure drivers
50848b8605Smrg           <ul>
51848b8605Smrg	   <li><b>common</b> - code shared by all DRI drivers
52848b8605Smrg	   <li><b>i915</b> - driver for Intel i915/i945
53848b8605Smrg	   <li><b>i965</b> - driver for Intel i965
54848b8605Smrg	   <li><b>radeon</b> - driver for ATI R100
55848b8605Smrg	   <li><b>r200</b> - driver for ATI R200
56848b8605Smrg	   <li>XXX more
57848b8605Smrg           </ul>
58848b8605Smrg        <li><b>x11</b> - Xlib-based software driver
59848b8605Smrg        <li><b>osmesa</b> - off-screen software driver
60848b8605Smrg        <li>XXX more
61848b8605Smrg        </ul>
62848b8605Smrg    <li><b>math</b> - vertex array translation and transformation code
63848b8605Smrg        (not used with Gallium)
64848b8605Smrg    <li><b>program</b> - Vertex/fragment shader and GLSL compiler code
65848b8605Smrg    <li><b>sparc</b> - Assembly code/optimizations for SPARC systems
66848b8605Smrg        (not used with Gallium)
67848b8605Smrg    <li><b>state_tracker</b> - State tracker / driver for Gallium.  This
68848b8605Smrg        is basically a Mesa device driver that speaks to Gallium.  This
69848b8605Smrg        directory may be moved to src/mesa/drivers/gallium at some point.
70848b8605Smrg    <li><b>swrast</b> - Software rasterization module.  For drawing points,
71848b8605Smrg        lines, triangles, bitmaps, images, etc. in software.
72848b8605Smrg        (not used with Gallium)
73848b8605Smrg    <li><b>swrast_setup</b> - Software primitive setup.  Does things like
74848b8605Smrg        polygon culling, glPolygonMode, polygon offset, etc.
75848b8605Smrg        (not used with Gallium)
76848b8605Smrg    <li><b>tnl</b> - Software vertex Transformation 'n Lighting.
77848b8605Smrg        (not used with Gallium)
78848b8605Smrg    <li><b>tnl_dd</b> - TNL code for device drivers.
79848b8605Smrg        (not used with Gallium)
80848b8605Smrg    <li><b>vbo</b> - Vertex Buffer Object code.  All drawing with
81848b8605Smrg        glBegin/glEnd, glDrawArrays, display lists, etc. goes through this
82848b8605Smrg        module.  The results is a well-defined set of vertex arrays which
83848b8605Smrg        are passed to the device driver (or tnl module) for rendering.
84848b8605Smrg    <li><b>x86</b> - Assembly code/optimizations for 32-bit x86 systems
85848b8605Smrg        (not used with Gallium)
86848b8605Smrg    <li><b>x86-64</b> - Assembly code/optimizations for 64-bit x86 systems
87848b8605Smrg        (not used with Gallium)
88848b8605Smrg    </ul>
89848b8605Smrg  <li><b>gallium</b> - Gallium3D source code
90848b8605Smrg    <ul>
91848b8605Smrg    <li><b>include</b> - Gallium3D header files which define the Gallium3D
92848b8605Smrg        interfaces
93848b8605Smrg    <li><b>drivers</b> - Gallium3D device drivers
94848b8605Smrg      <ul>
95848b8605Smrg      <li><b>i915</b> - Driver for Intel i915/i945.
96848b8605Smrg      <li><b>llvmpipe</b> - Software driver using LLVM for runtime code generation.
97848b8605Smrg      <li><b>nv*</b> - Drivers for NVIDIA GPUs.
98848b8605Smrg      <li><b>radeonsi</b> - Driver for AMD Southern Island.
99848b8605Smrg      <li><b>r300</b> - Driver for ATI R300 - R500.
100848b8605Smrg      <li><b>r600</b> - Driver for ATI/AMD R600 - Northern Island.
101848b8605Smrg      <li><b>softpipe</b> - Software reference driver.
102848b8605Smrg      <li><b>svga</b> - Driver for VMware's SVGA virtual GPU.
103848b8605Smrg      <li><b>trace</b> - Driver for tracing Gallium calls.
104848b8605Smrg      <li>XXX more
105848b8605Smrg      </ul>
106848b8605Smrg    <li><b>auxiliary</b> - Gallium support code
107848b8605Smrg      <ul>
108848b8605Smrg      <li><b>draw</b> - Software vertex processing and primitive assembly
109848b8605Smrg          module.  This includes vertex program execution, clipping, culling
110848b8605Smrg          and optional stages for drawing wide lines, stippled lines,
111848b8605Smrg          polygon stippling, two-sided lighting, etc.
112848b8605Smrg          Intended for use by drivers for hardware that does not have
113848b8605Smrg          vertex shaders.
114848b8605Smrg          Geometry shaders will also be implemented in this module.
115848b8605Smrg      <li><b>cso_cache</b> - Constant State Objects Cache.  Used to filter out
116848b8605Smrg          redundant state changes between state trackers and drivers.
117848b8605Smrg      <li><b>gallivm</b> - LLVM module for Gallium.  For LLVM-based
118848b8605Smrg           compilation, optimization and code generation for TGSI shaders.
119848b8605Smrg           Incomplete.
120848b8605Smrg      <li><b>pipebuffer</b> - utility module for managing buffers
121848b8605Smrg      <li><b>rbug</b> - Gallium remote debug utility
122848b8605Smrg      <li><b>rtasm</b> - run-time assembly/machine code generation.
123848b8605Smrg          Currently there's run-time code generation for x86/SSE, PowerPC
124848b8605Smrg          and Cell SPU.
125848b8605Smrg      <li><b>tgsi</b> - TG Shader Infrastructure.  Code for encoding,
126848b8605Smrg          manipulating and interpreting GPU programs.
127848b8605Smrg      <li><b>translate</b> - module for translating vertex data from one format
128848b8605Smrg          to another.
129848b8605Smrg      <li><b>util</b> - assorted utilities for arithmetic, hashing, surface
130848b8605Smrg          creation, memory management, 2D blitting, simple rendering, etc.
131848b8605Smrg      </ul>
132848b8605Smrg    <li><b>state_trackers</b> -
133848b8605Smrg       <ul>
134848b8605Smrg       <li><b>clover</b> - OpenCL state tracker
135848b8605Smrg       <li><b>dri</b> - Meta state tracker for DRI drivers
136848b8605Smrg       <li><b>egl</b> - Meta state tracker for EGL drivers
137848b8605Smrg       <li><b>glx</b> - Meta state tracker for GLX
138848b8605Smrg       <li><b>vdpau</b> - VDPAU state tracker
139848b8605Smrg       <li><b>vega</b> - OpenVG 1.x state tracker
140848b8605Smrg       <li><b>wgl</b> -
141848b8605Smrg       <li><b>xorg</b> - Meta state tracker for Xorg video drivers
142848b8605Smrg       <li><b>xvmc</b> - XvMC state tracker
143848b8605Smrg       </ul>
144848b8605Smrg    <li><b>winsys</b> -
145848b8605Smrg       <ul>
146848b8605Smrg       <li><b>drm</b> -
147848b8605Smrg       <li><b>gdi</b> -
148848b8605Smrg       <li><b>xlib</b> -
149848b8605Smrg       </ul>
150848b8605Smrg    </ul>
151848b8605Smrg  </ul>
152848b8605Smrg  <ul>
153848b8605Smrg  <li><b>glx</b> - The GLX library code for building libGL.  This is used for
154848b8605Smrg         direct rendering drivers.  It will dynamically load one of the 
155848b8605Smrg         xxx_dri.so drivers.
156848b8605Smrg  </ul>
157848b8605Smrg<li><b>lib</b> - where the GL libraries are placed
158848b8605Smrg</ul>
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