win32_handmade.h

#include <windows.h>

#define internal static
#define local_persist static
#define global_variable static

// A struct that returns the buffer we draw to. Pixels are always 32-bits wide, 0xBBGGRRPP.
struct win32_offscreen_buffer
{
    BITMAPINFO Info;
    void *Memory;
    int width;
    int height;
    int pitch;
    int bytesPerPixel;
};

// A struct that returns the size of the window.
struct win32_window_dimension
{
    int width;
    int height;
};

// Stuff relating to sound buffer calculations.
struct win32_sound_output
{
    int samplesPerSecond;
    // Todo: Should runningSampleIndex be in bytes also?
    uint32_t runningSampleIndex;
    int bytesPerSample;
    DWORD secondaryBufferSize;
    float tSine;
    int latencySampleCount;
    DWORD safetyBytes;
    // Todo: Add a bytesPerSecond field to simplify math.
};

struct win32_debug_time_marker
{
    DWORD OutputPlayCursor;
    DWORD OutputWriteCursor;
    DWORD OutputLocation;
    DWORD OutputByteCount;
    DWORD ExpectedFlipPlayCursor;
    DWORD FlipPlayCursor;
    DWORD FlipWriteCursor;
};