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michal-z / eneida Goto Github PK

Experimental demoscene project using C99 and Direct3D 12. Fully standalone with custom windows, and d3d12 headers. No Windows SDK, libc or Visual Studio dependency. C and HLSL compilers included.

License: MIT License

C 24.28% C++ 75.25% Batchfile 0.29% HLSL 0.18%

c from-scratch no-dependencies graphics proceduralgeneration direct3d12

eneida's Introduction

eneida

Project goals:

Create interesting, real-time animations by writing simple, low-level code.
Explore math, procedural generation techniques and audio programming.
Eventually, create a demoscene production and submit it to a demo party.

Project info:

Code is fully standalone, it compiles by running make.bat on any Windows 10 machine (no Visual Studio or any other software is needed).
No external headers or libs are required (not even system or libc headers).
Only external functions used are LoadLibrary and GetProcAddress. Everything else is loaded at runtime.
Linker (lld), C compiler (clang) and HLSL compiler (dxc) are all included in the build folder.

eneida's People

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lguzzon-scratchbook garettbass

eneida's Issues

Better memcpy

There is really no need to put memset in external asm file. You can put implementation in C file.
For example, here's one way how to implement it:

#pragma function(memset)
void *memset(void *dest, int c, size_t count)
{
    __stosb((unsigned char*)dest, (unsigned char)c, count);
    return dest;
}

This will simply generate "rep stosb" x86 instruction.
Similarly you can do memcpy with __movsb intrinsic.

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