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+# DFPSR
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+A modern software rendering library for C++14 using SSE/NEON created by David Forsgren Piuva. If you're looking for the latest mainstream fad, look elsewhere. This is a library for quality software meant to be developed over multiple decades and survive your grandchildren with minimal maintenance.
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+
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+## Why use a software renderer when GPUs are so fast?
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+* **Minimal dependency** for minimal support cost. No customer will ever tell you that some shader wouldn't compile on a GPU driver you never even heard of. It's all pure math on the CPU sending calls directly to the system.
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+* **Robust** because it will probably not ruin your system when making a mistake, unlike graphics APIs for the GPU that are prone to blue-screens. There are layers of safety for most API calls and pointer classes have extra tight memory protection in debug mode while leaving no trace in release mode.
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+* **Determinism down to machine precision** means that if it worked on one computer, it will probably work the same on another computer.
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+* **Often faster than the monitor's refresh rate** for isometric graphics with dynamic light. Try the Sandbox SDK example compiled in release mode on Ubuntu to check if it's smooth on your CPU. A quad-core Intel Core I5 should be fast enough in resonable resolutions.
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+* **Low latency for retro 2D graphics** using the CPU's higher frequency for low resolutions. There are no hardware limits other than CPU cycles and memory. Render to textures, apply deferred light filters or write your modified rendering pipeline for custom geometry formats.
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+* **Easy to use GUI system.** Create a window, load the interface from a file and connect a lambda function to a button's click action using only a few lines of procedural code.
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+* **Create your legacy.** Make software that future generations might be able to port, compile and run natively without the need for emulators.
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+
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+## Still a public beta
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+Don't use it for safety-critical projects unless you verify correctness yourself and take all responsibility. Either way, it's probably a lot safer than using OpenGL, OpenCL or Direct3D simply by being a single implementation where bugs will be mostly the same on each platform.
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+
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+## Remaining work
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+* Optimization of 3D rendering is still quite primitive. There's no quad-tree algorithm for quickly skipping large chunks of unseen pixels. There's no depth sorting nor early removal of triangles yet.
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+* The 3D camera system doesn't have a stable API yet.
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+* There's a half finished Ms-Windows port that I haven't given out yet, because accidentally running the 32-bit version on 64-bit Windows may trigger the WoW64 emulator with a 50X speed penalty for CPU operations which is very bad for software rendering of course. Maybe the Windows port can be exclusive for 64 bits to prevent this.
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+
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+## How you can help
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+* Report bugs that you find. (Visual C++ is not supported because it doesn't have C++14 nor C11 extensions)
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+* Port the Window wrapper to more platforms with instructions for compiling and linking.
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+* Create your own GUI components that can be pasted into a project and registered to the class factory.
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+* Develop minimal-dependency open-source games as a complement to the SDK.
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+
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+## Supported CPU hardware
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+* Intel/AMD using SSE2 intrinsics.
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+* ARM using NEON intrinsics.
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+* Unknown Little-Endian systems. (without SIMD vectorization)
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+
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+## Might support if it comes back:
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+* Big endian. Currently mostly used in routers, which aren't nearly powerful enough.
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+
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+## Will never support: (Don't worry power-users, this is a nerdy library meant for Linux geeks, retro gamers and scientists.)
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+* Mobile phones. You can't take a phone application and just release it for a desktop system, because this is why Windows 8 failed. Use the right tool for each task and consider the differences in usability contexts.
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+* Web frontends. The whole point of using this software renderer is the ability to write your own image filters using portable SIMD vectors in C++. A web script that can run native C++ applications is a web script that I would never allow into my browser due to the total lack of security. At least let me scan for viruses and choose whether to trust the source first.
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Dawoodoz