1 /* 2 Simple DirectMedia Layer 3 Copyright (C) 1997-2020 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 #define SDL_STEP_DEBUG printf("func: %s, line: %d excuted\n", __func__, __LINE__); 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_log.h" 120 121 #endif /* SDL_internal_h_ */ 122 123 /* vi: set ts=4 sw=4 expandtab: */ 124