src/video/directfb/SDL_DirectFB_video.h
author Sylvain Becker <sylvain.becker@gmail.com>
Wed, 23 Oct 2019 09:36:41 +0200
changeset 13167 26581b48aef9
parent 12503 806492103856
permissions -rw-r--r--
Fixed bug 4842 - Redundant condition in MS_ADPCM_Decode and IMA_ADPCM_Decode
(Thanks!)
     1 /*
     2   Simple DirectMedia Layer
     3   Copyright (C) 1997-2019 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 
    22 #include "../../SDL_internal.h"
    23 
    24 #ifndef SDL_DirectFB_video_h_
    25 #define SDL_DirectFB_video_h_
    26 
    27 #include <directfb.h>
    28 #include <directfb_version.h>
    29 
    30 #include "../SDL_sysvideo.h"
    31 #include "SDL_scancode.h"
    32 #include "SDL_render.h"
    33 
    34 #include "SDL_log.h"
    35 
    36 #define DFB_VERSIONNUM(X, Y, Z)                     \
    37     ((X)*1000 + (Y)*100 + (Z))
    38 
    39 #define DFB_COMPILEDVERSION \
    40     DFB_VERSIONNUM(DIRECTFB_MAJOR_VERSION, DIRECTFB_MINOR_VERSION, DIRECTFB_MICRO_VERSION)
    41 
    42 #define DFB_VERSION_ATLEAST(X, Y, Z) \
    43     (DFB_COMPILEDVERSION >= DFB_VERSIONNUM(X, Y, Z))
    44 
    45 #if (DFB_VERSION_ATLEAST(1,0,0))
    46 #ifdef SDL_VIDEO_OPENGL
    47 #define SDL_DIRECTFB_OPENGL 1
    48 #endif
    49 #else
    50 #error "SDL_DIRECTFB: Please compile against libdirectfb version >= 1.0.0"
    51 #endif
    52 
    53 /* Set below to 1 to compile with (old) multi mice/keyboard api. Code left in
    54  * in case we see this again ...
    55  */
    56 
    57 #define USE_MULTI_API   (0)
    58 
    59 /* Support for LUT8/INDEX8 pixel format.
    60  * This is broken in DirectFB 1.4.3. It works in 1.4.0 and 1.4.5
    61  * occurred.
    62  */
    63 
    64 #if (DFB_COMPILEDVERSION == DFB_VERSIONNUM(1, 4, 3))
    65 #define ENABLE_LUT8     (0)
    66 #else
    67 #define ENABLE_LUT8     (1)
    68 #endif
    69 
    70 #define DIRECTFB_DEBUG 1
    71 
    72 #define DFBENV_USE_YUV_UNDERLAY     "SDL_DIRECTFB_YUV_UNDERLAY"     /* Default: off */
    73 #define DFBENV_USE_YUV_DIRECT       "SDL_DIRECTFB_YUV_DIRECT"       /* Default: off */
    74 #define DFBENV_USE_X11_CHECK        "SDL_DIRECTFB_X11_CHECK"        /* Default: on  */
    75 #define DFBENV_USE_LINUX_INPUT      "SDL_DIRECTFB_LINUX_INPUT"      /* Default: on  */
    76 #define DFBENV_USE_WM               "SDL_DIRECTFB_WM"       /* Default: off  */
    77 
    78 #define SDL_DFB_RELEASE(x) do { if ( (x) != NULL ) { SDL_DFB_CHECK(x->Release(x)); x = NULL; } } while (0)
    79 #define SDL_DFB_FREE(x) do { SDL_free((x)); (x) = NULL; } while (0)
    80 #define SDL_DFB_UNLOCK(x) do { if ( (x) != NULL ) { x->Unlock(x); } } while (0)
    81 
    82 #define SDL_DFB_CONTEXT "SDL_DirectFB"
    83 
    84 #define SDL_DFB_ERR(x...) SDL_LogError(SDL_LOG_CATEGORY_ERROR, x)
    85 
    86 #if (DIRECTFB_DEBUG)
    87 #define SDL_DFB_LOG(x...) SDL_LogInfo(SDL_LOG_CATEGORY_VIDEO, x)
    88 
    89 #define SDL_DFB_DEBUG(x...) SDL_LogDebug(SDL_LOG_CATEGORY_VIDEO, x)
    90 
    91 static SDL_INLINE DFBResult sdl_dfb_check(DFBResult ret, const char *src_file, int src_line) {
    92     if (ret != DFB_OK) {
    93         SDL_DFB_LOG("%s (%d):%s", src_file, src_line, DirectFBErrorString (ret) );
    94         SDL_SetError("%s:%s", SDL_DFB_CONTEXT, DirectFBErrorString (ret) );
    95     }
    96     return ret;
    97 }
    98 
    99 #define SDL_DFB_CHECK(x...) do { sdl_dfb_check( x, __FILE__, __LINE__); } while (0)
   100 #define SDL_DFB_CHECKERR(x...) do { if ( sdl_dfb_check( x, __FILE__, __LINE__) != DFB_OK ) goto error; } while (0)
   101 
   102 #else
   103 
   104 #define SDL_DFB_CHECK(x...) x
   105 #define SDL_DFB_CHECKERR(x...) do { if (x != DFB_OK ) goto error; } while (0)
   106 #define SDL_DFB_LOG(x...) do {} while (0)
   107 #define SDL_DFB_DEBUG(x...) do {} while (0)
   108 
   109 #endif
   110 
   111 
   112 #define SDL_DFB_CALLOC(r, n, s) \
   113      do {                                           \
   114           r = SDL_calloc (n, s);                    \
   115           if (!(r)) {                               \
   116                SDL_DFB_ERR("Out of memory");        \
   117                SDL_OutOfMemory();                   \
   118                goto error;                          \
   119           }                                         \
   120      } while (0)
   121 
   122 #define SDL_DFB_ALLOC_CLEAR(r, s) SDL_DFB_CALLOC(r, 1, s)
   123 
   124 /* Private display data */
   125 
   126 #define SDL_DFB_DEVICEDATA(dev)  DFB_DeviceData *devdata = (dev ? (DFB_DeviceData *) ((dev)->driverdata) : NULL)
   127 
   128 #define DFB_MAX_SCREENS 10
   129 
   130 typedef struct _DFB_KeyboardData DFB_KeyboardData;
   131 struct _DFB_KeyboardData
   132 {
   133     const SDL_Scancode  *map;       /* keyboard scancode map */
   134     int             map_size;   /* size of map */
   135     int             map_adjust; /* index adjust */
   136     int             is_generic; /* generic keyboard */
   137     int id;
   138 };
   139 
   140 typedef struct _DFB_DeviceData DFB_DeviceData;
   141 struct _DFB_DeviceData
   142 {
   143     int initialized;
   144 
   145     IDirectFB           *dfb;
   146     int                 num_mice;
   147     int                 mouse_id[0x100];
   148     int                 num_keyboard;
   149     DFB_KeyboardData    keyboard[10];
   150     SDL_Window          *firstwin;
   151 
   152     int                 use_yuv_underlays;
   153     int                 use_yuv_direct;
   154     int                 use_linux_input;
   155     int                 has_own_wm;
   156 
   157 
   158     /* window grab */
   159     SDL_Window          *grabbed_window;
   160 
   161     /* global events */
   162     IDirectFBEventBuffer *events;
   163 };
   164 
   165 Uint32 DirectFB_DFBToSDLPixelFormat(DFBSurfacePixelFormat pixelformat);
   166 DFBSurfacePixelFormat DirectFB_SDLToDFBPixelFormat(Uint32 format);
   167 void DirectFB_SetSupportedPixelFormats(SDL_RendererInfo *ri);
   168 
   169 
   170 #endif /* SDL_DirectFB_video_h_ */