blob: b807644b13edca002f61fee49a20e5943d8c1d79 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
|
#if !defined(HANDMADE_H)
/* ========================================================================
$File: $
$Date: $
$Revision: $
$Creator: Casey Muratori $
$Notice: (C) Copyright 2014 by Molly Rocket, Inc. All Rights Reserved. $
======================================================================== */
#include "handmade_platform.h"
#include "handmade_math.h"
struct memory_arena
{
memory_index Size;
u8 *Base;
memory_index Used;
};
void
InitializeArena(memory_arena *Arena, memory_index Size, void *Base)
{
Arena->Size = Size;
Arena->Base = (u8 *)Base;
Arena->Used = 0;
}
#define PushStruct(Arena, type) ((type *)PushSize((Arena), (sizeof(type))))
#define PushArray(Arena, Count, type) (type *)PushSize((Arena), (sizeof(type))*(Count))
void *
PushSize(memory_arena *Arena, memory_index Size)
{
Assert((Arena->Used + Size) < Arena->Size);
void *Result = Arena->Base + Arena->Used;
Arena->Used += Size;
return Result;
}
#include "handmade_intrinsics.h"
struct loaded_bitmap
{
int Width;
int Height;
u32 *Pixels;
};
struct game_state
{
r32 Slope;
r32 Step;
};
#define HANDMADE_H
#endif
|
