| Source Code Tree |
| ================ |
| |
| This is a brief summary of Mesa's directory tree and what's contained in |
| each directory. |
| |
| - **docs** - Documentation |
| - **include** - Public OpenGL header files |
| - **src** |
| |
| - **amd** - AMD-specific sources |
| |
| - **addrlib** - common sources for creating images |
| - **common** - common code between RADV, radeonsi and ACO |
| - **compiler** - ACO shader compiler |
| - **llvm** - common code between RADV and radeonsi for compiling |
| shaders using LLVM |
| - **registers** - register definitions |
| - **vulkan** - RADV Vulkan implementation for AMD Southern Island |
| and newer |
| |
| - **compiler** - Common utility sources for different compilers. |
| |
| - **glsl** - the GLSL IR and compiler |
| - **nir** - the NIR IR and compiler |
| - **spirv** - the SPIR-V compiler |
| |
| - **egl** - EGL library sources |
| |
| - **drivers** - EGL drivers |
| - **main** - main EGL library implementation. This is where all |
| the EGL API functions are implemented, like eglCreateContext(). |
| |
| - **mapi** - Mesa APIs |
| - **glapi** - 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/. |
| - **mesa** - Main Mesa sources |
| |
| - **main** - The core Mesa code (mainly state management) |
| - **drivers** - Mesa drivers (not used with Gallium) |
| |
| - **common** - code which may be shared by all drivers |
| - **dri** - Direct Rendering Infrastructure drivers |
| |
| - **common** - code shared by all DRI drivers |
| - **i915** - driver for Intel i915/i945 |
| - **i965** - driver for Intel i965 |
| - **radeon** - driver for ATI R100 |
| - **r200** - driver for ATI R200 |
| - XXX more |
| |
| - **x11** - Xlib-based software driver |
| - **osmesa** - off-screen software driver |
| - XXX more |
| |
| - **math** - vertex array translation and transformation code |
| (not used with Gallium) |
| - **program** - Vertex/fragment shader and GLSL compiler code |
| - **sparc** - Assembly code/optimizations for SPARC systems (not |
| used with Gallium) |
| - **state_tracker** - Translator from Mesa to 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. |
| - **swrast** - Software rasterization module. For drawing points, |
| lines, triangles, bitmaps, images, etc. in software. (not used |
| with Gallium) |
| - **swrast_setup** - Software primitive setup. Does things like |
| polygon culling, glPolygonMode, polygon offset, etc. (not used |
| with Gallium) |
| - **tnl** - Software vertex Transformation 'n Lighting. (not used |
| with Gallium) |
| - **tnl_dd** - TNL code for device drivers. (not used with |
| Gallium) |
| - **vbo** - 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. |
| - **x86** - Assembly code/optimizations for 32-bit x86 systems |
| (not used with Gallium) |
| - **x86-64** - Assembly code/optimizations for 64-bit x86 systems |
| (not used with Gallium) |
| |
| - **gallium** - Gallium3D source code |
| |
| - **include** - Gallium3D header files which define the Gallium3D |
| interfaces |
| - **drivers** - Gallium3D device drivers |
| |
| - **i915** - Driver for Intel i915/i945. |
| - **llvmpipe** - Software driver using LLVM for runtime code |
| generation. |
| - **nouveau** - Driver for NVIDIA GPUs. |
| - **radeon** - Shared module for the r600 and radeonsi |
| drivers. |
| - **radeonsi** - Driver for AMD Southern Island. |
| - **r300** - Driver for ATI R300 - R500. |
| - **r600** - Driver for ATI/AMD R600 - Northern Island. |
| - **softpipe** - Software reference driver. |
| - **svga** - Driver for VMware's SVGA virtual GPU. |
| - **trace** - Driver for tracing Gallium calls. |
| - XXX more |
| |
| - **auxiliary** - Gallium support code |
| |
| - **draw** - 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. |
| - **cso_cache** - Constant State Objects Cache. Used to filter |
| out redundant state changes between frontends and drivers. |
| - **gallivm** - LLVM module for Gallium. For LLVM-based |
| compilation, optimization and code generation for TGSI |
| shaders. Incomplete. |
| - **pipebuffer** - utility module for managing buffers |
| - **rbug** - Gallium remote debug utility |
| - **rtasm** - run-time assembly/machine code generation. |
| Currently there's run-time code generation for x86/SSE, |
| PowerPC and Cell SPU. |
| - **tgsi** - TG Shader Infrastructure. Code for encoding, |
| manipulating and interpreting GPU programs. |
| - **translate** - module for translating vertex data from one |
| format to another. |
| - **util** - assorted utilities for arithmetic, hashing, |
| surface creation, memory management, 2D blitting, simple |
| rendering, etc. |
| - XXX more |
| |
| - **frontends** - |
| |
| - **clover** - OpenCL frontend |
| - **dri** - Meta frontend for DRI drivers |
| - **glx** - Meta frontend for GLX |
| - **wgl** - Windows WGL frontend |
| - **xa** - XA frontend |
| - **xvmc** - XvMC frontend |
| - **vdpau** - VDPAU frontend |
| - **va** - VA-API frontend |
| - **omx_bellagio** - OpenMAX Bellagio frontend |
| |
| - **winsys** - |
| |
| - **drm** - |
| - **gdi** - |
| - **xlib** - |
| |
| - **glx** - The GLX library code for building libGL using DRI |
| drivers. |
| |
| - **lib** - hardlinks to most binaries as produced by the build system. |
| These (shortcuts) are used for development purposes in conjunction |
| with LD_LIBRARY_PATH and/or LIBGL_DRIVERS_PATH. |
