| 1 | Source Code Tree
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| 2 | ================
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| 3 |
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| 4 | This is a brief summary of Mesa's directory tree and what's contained in
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| 5 | each directory.
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| 6 |
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| 7 | - **docs** - Documentation
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| 8 | - **include** - Public OpenGL header files
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| 9 | - **src**
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| 10 |
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| 11 | - **amd** - AMD-specific sources
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| 12 |
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| 13 | - **addrlib** - common sources for creating images
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| 14 | - **common** - common code between RADV, radeonsi and ACO
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| 15 | - **compiler** - ACO shader compiler
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| 16 | - **llvm** - common code between RADV and radeonsi for compiling
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| 17 | shaders using LLVM
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| 18 | - **registers** - register definitions
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| 19 | - **vulkan** - RADV Vulkan implementation for AMD Southern Island
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| 20 | and newer
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| 21 |
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| 22 | - **compiler** - Common utility sources for different compilers.
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| 23 |
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| 24 | - **glsl** - the GLSL IR and compiler
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| 25 | - **nir** - the NIR IR and compiler
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| 26 | - **spirv** - the SPIR-V compiler
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| 27 |
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| 28 | - **egl** - EGL library sources
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| 29 |
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| 30 | - **drivers** - EGL drivers
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| 31 | - **main** - main EGL library implementation. This is where all
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| 32 | the EGL API functions are implemented, like eglCreateContext().
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| 33 |
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| 34 | - **freedreno** - Adreno-specific sources
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| 35 |
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| 36 | - **fdl** - mipmap layout manager
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| 37 | - **vulkan** - Turnip is a Vulkan implementation for
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| 38 | Qualcomm Adreno
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| 39 |
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| 40 | - **gbm** - Generic Buffer Manager is a memory allocator for
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| 41 | device buffers
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| 42 |
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| 43 | - **intel** - Intel-specific sources
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| 44 |
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| 45 | - **blorp** - BLit Or Resolve Pass is a blit and HiZ resolve framework
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| 46 | - **vulkan** - Anvil is a Vulkan implementation for Intel gen 7
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| 47 | (Ivy Bridge) and newer
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| 48 |
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| 49 | - **mapi** - Mesa APIs
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| 50 |
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| 51 | - **glapi** - OpenGL API dispatch layer. This is where all the GL
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| 52 | entrypoints like glClear, glBegin, etc. are generated, as well as
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| 53 | the GL dispatch table. All GL function calls jump through the
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| 54 | dispatch table to functions found in main/.
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| 55 |
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| 56 | - **mesa** - Main Mesa sources
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| 57 |
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| 58 | - **main** - The core Mesa code (mainly state management)
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| 59 | - **drivers** - Mesa drivers (not used with Gallium)
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| 60 |
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| 61 | - **common** - code which may be shared by all drivers
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| 62 | - **dri** - Direct Rendering Infrastructure drivers
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| 63 |
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| 64 | - **common** - code shared by all DRI drivers
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| 65 | - **i915** - driver for Intel i915/i945
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| 66 | - **i965** - driver for Intel i965
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| 67 | - **nouveau** - driver for nVidia nv04/nv10/nv20
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| 68 | - **radeon** - driver for ATI R100
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| 69 | - **r200** - driver for ATI R200
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| 70 | - **swrast** - software rasterizer driver that uses the
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| 71 | swrast module
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| 72 |
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| 73 | - **x11** - Xlib-based software driver
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| 74 | - **osmesa** - off-screen software driver
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| 75 |
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| 76 | - **math** - vertex array translation and transformation code
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| 77 | (not used with Gallium)
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| 78 | - **program** - Vertex/fragment shader and GLSL compiler code
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| 79 | - **sparc** - Assembly code/optimizations for SPARC systems (not
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| 80 | used with Gallium)
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| 81 | - **state_tracker** - Translator from Mesa to Gallium. This is
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| 82 | basically a Mesa device driver that speaks to Gallium. This
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| 83 | directory may be moved to src/mesa/drivers/gallium at some
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| 84 | point.
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| 85 | - **swrast** - Software rasterization module. For drawing points,
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| 86 | lines, triangles, bitmaps, images, etc. in software. (not used
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| 87 | with Gallium)
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| 88 | - **swrast_setup** - Software primitive setup. Does things like
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| 89 | polygon culling, glPolygonMode, polygon offset, etc. (not used
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| 90 | with Gallium)
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| 91 | - **tnl** - Software vertex Transformation 'n Lighting. (not used
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| 92 | with Gallium)
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| 93 | - **tnl_dd** - TNL code for device drivers. (not used with
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| 94 | Gallium)
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| 95 | - **vbo** - Vertex Buffer Object code. All drawing with
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| 96 | glBegin/glEnd, glDrawArrays, display lists, etc. goes through
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| 97 | this module. The results is a well-defined set of vertex arrays
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| 98 | which are passed to the device driver (or tnl module) for
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| 99 | rendering.
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| 100 | - **x86** - Assembly code/optimizations for 32-bit x86 systems
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| 101 | (not used with Gallium)
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| 102 | - **x86-64** - Assembly code/optimizations for 64-bit x86 systems
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| 103 | (not used with Gallium)
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| 104 |
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| 105 | - **gallium** - Gallium3D source code
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| 106 |
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| 107 | - **include** - Gallium3D header files which define the Gallium3D
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| 108 | interfaces
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| 109 | - **drivers** - Gallium3D device drivers
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| 110 |
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| 111 | - **etnaviv** - Driver for Vivante.
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| 112 | - **freedreno** - Driver for Qualcomm Adreno.
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| 113 | - **i915** - Driver for Intel i915/i945.
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| 114 | - **iris** - Driver for Intel gen 8 (Broadwell) and newer.
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| 115 | - **lima** - Driver for ARM Mali-400 (Utgard) series.
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| 116 | - **llvmpipe** - Software driver using LLVM for runtime code
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| 117 | generation.
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| 118 | - **nouveau** - Driver for NVIDIA GPUs.
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| 119 | - **panfrost** - Driver for ARM Mali Txxx (Midgard) and
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| 120 | Gxx (Bifrost) GPUs.
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| 121 | - **radeon** - Shared module for the r600 and radeonsi
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| 122 | drivers.
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| 123 | - **r300** - Driver for ATI R300 - R500.
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| 124 | - **r600** - Driver for ATI/AMD R600 - Northern Island (Terascale).
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| 125 | - **radeonsi** - Driver for AMD Southern Island and newer (GCN, RDNA).
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| 126 | - **softpipe** - Software reference driver.
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| 127 | - **svga** - Driver for VMware's SVGA virtual GPU.
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| 128 | - **swr** - Software driver with massively parellel vertex processing.
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| 129 | - **tegra** - Driver for NVIDIA Tegra GPUs.
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| 130 | - **v3d** - Driver for Broadcom VideoCore 5 and newer.
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| 131 | - **vc4** - Driver for Broadcom VideoCore 4.
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| 132 | - **virgl** - Driver for Virtio virtual GPU of QEMU.
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| 133 | - **zink** - Driver that uses Vulkan for rendering.
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| 134 |
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| 135 | - **auxiliary** - Gallium support code
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| 136 |
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| 137 | - **cso_cache** - Constant State Objects Cache. Used to filter
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| 138 | out redundant state changes between frontends and drivers.
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| 139 | - **draw** - Software vertex processing and primitive assembly
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| 140 | module. This includes vertex program execution, clipping,
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| 141 | culling and optional stages for drawing wide lines, stippled
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| 142 | lines, polygon stippling, two-sided lighting, etc. Intended
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| 143 | for use by drivers for hardware that does not have vertex
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| 144 | shaders. Geometry shaders will also be implemented in this
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| 145 | module.
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| 146 | - **gallivm** - LLVM module for Gallium. For LLVM-based
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| 147 | compilation, optimization and code generation for TGSI
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| 148 | shaders. Incomplete.
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| 149 | - **hud** - Heads-Up Display, an overlay showing GPU statistics
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| 150 | - **pipebuffer** - utility module for managing buffers
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| 151 | - **rbug** - Gallium remote debug utility
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| 152 | - **rtasm** - run-time assembly/machine code generation.
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| 153 | Currently there's run-time code generation for x86/SSE,
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| 154 | PowerPC and Cell SPU.
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| 155 | - **tessellator**- used by software drivers to implement
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| 156 | tessellation shaders
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| 157 | - **tgsi** - TG Shader Infrastructure. Code for encoding,
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| 158 | manipulating and interpreting GPU programs.
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| 159 | - **translate** - module for translating vertex data from one
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| 160 | format to another.
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| 161 | - **util** - assorted utilities for arithmetic, hashing,
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| 162 | surface creation, memory management, 2D blitting, simple
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| 163 | rendering, etc.
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| 164 | - **vl** - utility code for video decode/encode
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| 165 | - XXX more
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| 166 |
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| 167 | - **frontends** - These implement various libraries using the
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| 168 | device drivers
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| 169 |
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| 170 | - **clover** - OpenCL frontend
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| 171 | - **dri** - Meta frontend for DRI drivers, see mesa/state_tracker
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| 172 | - **glx** - Meta frontend for GLX
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| 173 | - **hgl** - Haiku OpenGL
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| 174 | - **nine** - D3D9 frontend, see targets/d3dadapter9
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| 175 | - **omx** - OpenMAX Bellagio frontend
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| 176 | - **osmesa** - Off-screen OpenGL rendering library
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| 177 | - **va** - VA-API frontend
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| 178 | - **vdpau** - VDPAU frontend
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| 179 | - **wgl** - Windows WGL frontend
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| 180 | - **xa** - XA frontend
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| 181 | - **xvmc** - XvMC frontend
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| 182 |
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| 183 | - **winsys** - The device drivers are platform-independent, the
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| 184 | winsys connects them to various platforms. There is usually one winsys
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| 185 | per device family, and within the winsys directory there can be
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| 186 | multiple flavors connecting to different platforms.
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| 187 |
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| 188 | - **drm** - Direct Rendering Manager on Linux
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| 189 | - **gdi** - Windows
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| 190 | - **xlib** - indirect rendering on X Window System
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| 191 | - XXX more
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| 192 |
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| 193 | - **targets** - These control how the Gallium code is compiled into
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| 194 | different libraries. Each of these roughly corresponds to one frontend.
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| 195 |
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| 196 | - **d3dadapter9** - d3dadapter9.so for Wine
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| 197 | - **dri** - libgallium_dri.so loaded by libGL.so
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| 198 | - **graw** - raw Gallium interface without a frontend
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| 199 | - XXX more
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| 200 |
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| 201 | - **glx** - The GLX library code for building libGL.so using DRI
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| 202 | drivers.
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| 203 | - **loader** - Used by libGL.so to find and load the appropriate DRI driver.
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| 204 | - **panfrost** - Panfrost-specific sources
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| 205 |
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| 206 | - **bifrost** - shader compiler for the Bifrost generation GPUs
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| 207 | - **lib** - GPU data structures (command stream) support code`
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| 208 | - **midgard** - shader compiler for the Midgard generation GPUs
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| 209 | - **shared** - shared Mali code between Lima and Panfrost
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| 210 | - **util** - shared code between Midgard and Bifrost shader compilers
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| 211 |
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| 212 | - **util** - Various utility codes
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| 213 | - **vulkan** - Common code for Vulkan drivers
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