1K Intro

Introduction

This category is dedicated to 1K Intros for Windows 32.

Windows 1K Intros can be setup in C or Aseembler, or a combination of both, with only the few windows calls that are used being linked in. In general writing everything in assembler should give you a little more freedom in pushing/popping your function arguments but in th past quality intros have been written in both languages.

Graphics are usualy done using OpenGL / GLSL, but there are 1K intros out there that have used D3D instead.

Setup (Windows)

• ChangeDisplaySettings(&screenSettings, CDS_FULLSCREEN) - Initialise fullscreen view
• hwnd = CreateWindow((LPCSTR)0xC018, 0, WS_POPUP | WS_VISIBLE | WS_MAXIMIZE, 0, 0, 0, 0, 0, 0, 0, 0) - Setting up a Maximised Window
• GetDC(hwnd) - Get DeviceContext handle
• ChoosePixelFormat(hDC, &pfd) - Set pixelformat describer by pfd to DeviceContext handle
• ShowCursor(NULL) - Hide mousecursor (usually required by compo rules)

Setup (OpenGL)

• glContent = wglCreateContext(hDC) - Create OpenGL context
• wglMakeCurrent(hDC, glContext) - Set OpenGL Context
• shaderProgam = glCreateShaderProgramv(GL_FRAGMENT_SHADER, 1, &shader) - Create and compile GLSL Shader
• glUseProgram(shaderProgram) - Set active shader

Update Loop

• t = GetTickCount() - Optional: Get Current ticks
• glColor3us(t,0,0) / glColor3i(t,0,0) - Parse time via gl_Color (saves importing uniform functions)
• glRects(-1,-1,1,1) - Draw a single quad with current Shader
• SwapBuffers(hDC) - Swap Buffers
• GetAsyncKeyState(VK_ESCAPE) - Checks for escape key (required by compo rules)

Closedown

• ExitProcess(0) - Close down application

Graphics / effect

• Passed time via glColor (no uniforms used)
• GLSL Shadercode

Sound

• Win32 Single Note MIDI
• Win32 MIDI player

• Bytebeat softsynth
• Shader softsynth

Compression

• Microsoft Cabinet decmpression
• Crinkler

Frameworks

• IQ's 1k/4k frameworks
• hitchhikr's 1k framework
• Psycho's 1k/4k framework
• Audl's 1k framework

1K intros for Windows

• TBA