1/*
2 Simple DirectMedia Layer
3 Copyright (C) 1997-2021 Sam Lantinga <slouken@libsdl.org>
4
5 This software is provided 'as-is', without any express or implied
6 warranty. In no event will the authors be held liable for any damages
7 arising from the use of this software.
8
9 Permission is granted to anyone to use this software for any purpose,
10 including commercial applications, and to alter it and redistribute it
11 freely, subject to the following restrictions:
12
13 1. The origin of this software must not be misrepresented; you must not
14 claim that you wrote the original software. If you use this software
15 in a product, an acknowledgment in the product documentation would be
16 appreciated but is not required.
17 2. Altered source versions must be plainly marked as such, and must not be
18 misrepresented as being the original software.
19 3. This notice may not be removed or altered from any source distribution.
20*/
21#ifndef SDL_internal_h_
22#define SDL_internal_h_
23
24/* Many of SDL's features require _GNU_SOURCE on various platforms */
25#ifndef _GNU_SOURCE
26#define _GNU_SOURCE
27#endif
28
29/* This is for a variable-length array at the end of a struct:
30 struct x { int y; char z[SDL_VARIABLE_LENGTH_ARRAY]; };
31 Use this because GCC 2 needs different magic than other compilers. */
32#if (defined(__GNUC__) && (__GNUC__ <= 2)) || defined(__CC_ARM) || defined(__cplusplus)
33#define SDL_VARIABLE_LENGTH_ARRAY 1
34#else
35#define SDL_VARIABLE_LENGTH_ARRAY
36#endif
37
38#define SDL_MAX_SMALL_ALLOC_STACKSIZE 128
39#define SDL_small_alloc(type, count, pisstack) ( (*(pisstack) = ((sizeof(type)*(count)) < SDL_MAX_SMALL_ALLOC_STACKSIZE)), (*(pisstack) ? SDL_stack_alloc(type, count) : (type*)SDL_malloc(sizeof(type)*(count))) )
40#define SDL_small_free(ptr, isstack) if ((isstack)) { SDL_stack_free(ptr); } else { SDL_free(ptr); }
41
42#include "dynapi/SDL_dynapi.h"
43
44#if SDL_DYNAMIC_API
45#include "dynapi/SDL_dynapi_overrides.h"
46/* force DECLSPEC and SDLCALL off...it's all internal symbols now.
47 These will have actual #defines during SDL_dynapi.c only */
48#define DECLSPEC
49#define SDLCALL
50#endif
51
52#include "SDL_config.h"
53
54/* A few #defines to reduce SDL2 footprint.
55 Only effective when library is statically linked.
56 You have to manually edit this file. */
57#ifndef SDL_LEAN_AND_MEAN
58#define SDL_LEAN_AND_MEAN 0
59#endif
60
61/* Optimized functions from 'SDL_blit_0.c'
62 - blit with source BitsPerPixel < 8, palette */
63#ifndef SDL_HAVE_BLIT_0
64#define SDL_HAVE_BLIT_0 !SDL_LEAN_AND_MEAN
65#endif
66
67/* Optimized functions from 'SDL_blit_1.c'
68 - blit with source BytesPerPixel == 1, palette */
69#ifndef SDL_HAVE_BLIT_1
70#define SDL_HAVE_BLIT_1 !SDL_LEAN_AND_MEAN
71#endif
72
73/* Optimized functions from 'SDL_blit_A.c'
74 - blit with 'SDL_BLENDMODE_BLEND' blending mode */
75#ifndef SDL_HAVE_BLIT_A
76#define SDL_HAVE_BLIT_A !SDL_LEAN_AND_MEAN
77#endif
78
79/* Optimized functions from 'SDL_blit_N.c'
80 - blit with COLORKEY mode, or nothing */
81#ifndef SDL_HAVE_BLIT_N
82#define SDL_HAVE_BLIT_N !SDL_LEAN_AND_MEAN
83#endif
84
85/* Optimized functions from 'SDL_blit_N.c'
86 - RGB565 conversion with Lookup tables */
87#ifndef SDL_HAVE_BLIT_N_RGB565
88#define SDL_HAVE_BLIT_N_RGB565 !SDL_LEAN_AND_MEAN
89#endif
90
91/* Optimized functions from 'SDL_blit_AUTO.c'
92 - blit with modulate color, modulate alpha, any blending mode
93 - scaling or not */
94#ifndef SDL_HAVE_BLIT_AUTO
95#define SDL_HAVE_BLIT_AUTO !SDL_LEAN_AND_MEAN
96#endif
97
98/* Run-Length-Encoding
99 - SDL_SetColorKey() called with SDL_RLEACCEL flag */
100#ifndef SDL_HAVE_RLE
101#define SDL_HAVE_RLE !SDL_LEAN_AND_MEAN
102#endif
103
104/* Software SDL_Renderer
105 - creation of software renderer
106 - *not* general blitting functions
107 - {blend,draw}{fillrect,line,point} internal functions */
108#ifndef SDL_VIDEO_RENDER_SW
109#define SDL_VIDEO_RENDER_SW !SDL_LEAN_AND_MEAN
110#endif
111
112/* YUV formats
113 - handling of YUV surfaces
114 - blitting and conversion functions */
115#ifndef SDL_HAVE_YUV
116#define SDL_HAVE_YUV !SDL_LEAN_AND_MEAN
117#endif
118
119#include "SDL_assert.h"
120#include "SDL_log.h"
121
122#endif /* SDL_internal_h_ */
123
124/* vi: set ts=4 sw=4 expandtab: */
125