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FORK: Simple Directmedia Layer
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SDL_internal.h (4194B)

      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 
     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: */