src/video/cocoa/SDL_cocoavideo.m
author Manuel Alfayate Corchete
Sat, 23 Jan 2021 22:47:06 +0100
changeset 14788 592afde63bb7
parent 14640 b2b3343a310d
permissions -rw-r--r--
[KMS/DRM] Bugfix for #5489: Non-FULLSCREEN windows incorrecty use videomode changing to look fullscreen.
     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 #include "../../SDL_internal.h"
    22 
    23 #if SDL_VIDEO_DRIVER_COCOA
    24 
    25 #include "SDL.h"
    26 #include "SDL_endian.h"
    27 #include "SDL_cocoavideo.h"
    28 #include "SDL_cocoashape.h"
    29 #include "SDL_cocoavulkan.h"
    30 #include "SDL_cocoametalview.h"
    31 
    32 /* Initialization/Query functions */
    33 static int Cocoa_VideoInit(_THIS);
    34 static void Cocoa_VideoQuit(_THIS);
    35 
    36 /* Cocoa driver bootstrap functions */
    37 
    38 static void
    39 Cocoa_DeleteDevice(SDL_VideoDevice * device)
    40 {
    41     SDL_free(device->driverdata);
    42     SDL_free(device);
    43 }
    44 
    45 static SDL_VideoDevice *
    46 Cocoa_CreateDevice(int devindex)
    47 {
    48     SDL_VideoDevice *device;
    49     SDL_VideoData *data;
    50 
    51     Cocoa_RegisterApp();
    52 
    53     /* Initialize all variables that we clean on shutdown */
    54     device = (SDL_VideoDevice *) SDL_calloc(1, sizeof(SDL_VideoDevice));
    55     if (device) {
    56         data = (struct SDL_VideoData *) SDL_calloc(1, sizeof(SDL_VideoData));
    57     } else {
    58         data = NULL;
    59     }
    60     if (!data) {
    61         SDL_OutOfMemory();
    62         SDL_free(device);
    63         return NULL;
    64     }
    65     device->driverdata = data;
    66 
    67     /* Set the function pointers */
    68     device->VideoInit = Cocoa_VideoInit;
    69     device->VideoQuit = Cocoa_VideoQuit;
    70     device->GetDisplayBounds = Cocoa_GetDisplayBounds;
    71     device->GetDisplayUsableBounds = Cocoa_GetDisplayUsableBounds;
    72     device->GetDisplayDPI = Cocoa_GetDisplayDPI;
    73     device->GetDisplayModes = Cocoa_GetDisplayModes;
    74     device->SetDisplayMode = Cocoa_SetDisplayMode;
    75     device->PumpEvents = Cocoa_PumpEvents;
    76     device->SuspendScreenSaver = Cocoa_SuspendScreenSaver;
    77 
    78     device->CreateSDLWindow = Cocoa_CreateWindow;
    79     device->CreateSDLWindowFrom = Cocoa_CreateWindowFrom;
    80     device->SetWindowTitle = Cocoa_SetWindowTitle;
    81     device->SetWindowIcon = Cocoa_SetWindowIcon;
    82     device->SetWindowPosition = Cocoa_SetWindowPosition;
    83     device->SetWindowSize = Cocoa_SetWindowSize;
    84     device->SetWindowMinimumSize = Cocoa_SetWindowMinimumSize;
    85     device->SetWindowMaximumSize = Cocoa_SetWindowMaximumSize;
    86     device->SetWindowOpacity = Cocoa_SetWindowOpacity;
    87     device->ShowWindow = Cocoa_ShowWindow;
    88     device->HideWindow = Cocoa_HideWindow;
    89     device->RaiseWindow = Cocoa_RaiseWindow;
    90     device->MaximizeWindow = Cocoa_MaximizeWindow;
    91     device->MinimizeWindow = Cocoa_MinimizeWindow;
    92     device->RestoreWindow = Cocoa_RestoreWindow;
    93     device->SetWindowBordered = Cocoa_SetWindowBordered;
    94     device->SetWindowResizable = Cocoa_SetWindowResizable;
    95     device->SetWindowFullscreen = Cocoa_SetWindowFullscreen;
    96     device->SetWindowGammaRamp = Cocoa_SetWindowGammaRamp;
    97     device->GetWindowGammaRamp = Cocoa_GetWindowGammaRamp;
    98     device->SetWindowGrab = Cocoa_SetWindowGrab;
    99     device->DestroyWindow = Cocoa_DestroyWindow;
   100     device->GetWindowWMInfo = Cocoa_GetWindowWMInfo;
   101     device->SetWindowHitTest = Cocoa_SetWindowHitTest;
   102     device->AcceptDragAndDrop = Cocoa_AcceptDragAndDrop;
   103 
   104     device->shape_driver.CreateShaper = Cocoa_CreateShaper;
   105     device->shape_driver.SetWindowShape = Cocoa_SetWindowShape;
   106     device->shape_driver.ResizeWindowShape = Cocoa_ResizeWindowShape;
   107 
   108 #if SDL_VIDEO_OPENGL_CGL
   109     device->GL_LoadLibrary = Cocoa_GL_LoadLibrary;
   110     device->GL_GetProcAddress = Cocoa_GL_GetProcAddress;
   111     device->GL_UnloadLibrary = Cocoa_GL_UnloadLibrary;
   112     device->GL_CreateContext = Cocoa_GL_CreateContext;
   113     device->GL_MakeCurrent = Cocoa_GL_MakeCurrent;
   114     device->GL_GetDrawableSize = Cocoa_GL_GetDrawableSize;
   115     device->GL_SetSwapInterval = Cocoa_GL_SetSwapInterval;
   116     device->GL_GetSwapInterval = Cocoa_GL_GetSwapInterval;
   117     device->GL_SwapWindow = Cocoa_GL_SwapWindow;
   118     device->GL_DeleteContext = Cocoa_GL_DeleteContext;
   119 #elif SDL_VIDEO_OPENGL_EGL
   120     device->GL_LoadLibrary = Cocoa_GLES_LoadLibrary;
   121     device->GL_GetProcAddress = Cocoa_GLES_GetProcAddress;
   122     device->GL_UnloadLibrary = Cocoa_GLES_UnloadLibrary;
   123     device->GL_CreateContext = Cocoa_GLES_CreateContext;
   124     device->GL_MakeCurrent = Cocoa_GLES_MakeCurrent;
   125     device->GL_SetSwapInterval = Cocoa_GLES_SetSwapInterval;
   126     device->GL_GetSwapInterval = Cocoa_GLES_GetSwapInterval;
   127     device->GL_SwapWindow = Cocoa_GLES_SwapWindow;
   128     device->GL_DeleteContext = Cocoa_GLES_DeleteContext;
   129 #endif
   130 
   131 #if SDL_VIDEO_VULKAN
   132     device->Vulkan_LoadLibrary = Cocoa_Vulkan_LoadLibrary;
   133     device->Vulkan_UnloadLibrary = Cocoa_Vulkan_UnloadLibrary;
   134     device->Vulkan_GetInstanceExtensions = Cocoa_Vulkan_GetInstanceExtensions;
   135     device->Vulkan_CreateSurface = Cocoa_Vulkan_CreateSurface;
   136     device->Vulkan_GetDrawableSize = Cocoa_Vulkan_GetDrawableSize;
   137 #endif
   138 
   139 #if SDL_VIDEO_METAL
   140     device->Metal_CreateView = Cocoa_Metal_CreateView;
   141     device->Metal_DestroyView = Cocoa_Metal_DestroyView;
   142     device->Metal_GetLayer = Cocoa_Metal_GetLayer;
   143     device->Metal_GetDrawableSize = Cocoa_Metal_GetDrawableSize;
   144 #endif
   145 
   146     device->StartTextInput = Cocoa_StartTextInput;
   147     device->StopTextInput = Cocoa_StopTextInput;
   148     device->SetTextInputRect = Cocoa_SetTextInputRect;
   149 
   150     device->SetClipboardText = Cocoa_SetClipboardText;
   151     device->GetClipboardText = Cocoa_GetClipboardText;
   152     device->HasClipboardText = Cocoa_HasClipboardText;
   153 
   154     device->free = Cocoa_DeleteDevice;
   155 
   156     return device;
   157 }
   158 
   159 VideoBootStrap COCOA_bootstrap = {
   160     "cocoa", "SDL Cocoa video driver",
   161     Cocoa_CreateDevice
   162 };
   163 
   164 
   165 int
   166 Cocoa_VideoInit(_THIS)
   167 {
   168     SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
   169 
   170     Cocoa_InitModes(_this);
   171     Cocoa_InitKeyboard(_this);
   172     if (Cocoa_InitMouse(_this) < 0) {
   173         return -1;
   174     }
   175 
   176     data->allow_spaces = ((floor(NSAppKitVersionNumber) > NSAppKitVersionNumber10_6) && SDL_GetHintBoolean(SDL_HINT_VIDEO_MAC_FULLSCREEN_SPACES, SDL_TRUE));
   177 
   178     /* The IOPM assertion API can disable the screensaver as of 10.7. */
   179     data->screensaver_use_iopm = floor(NSAppKitVersionNumber) > NSAppKitVersionNumber10_6;
   180 
   181     data->swaplock = SDL_CreateMutex();
   182     if (!data->swaplock) {
   183         return -1;
   184     }
   185 
   186     return 0;
   187 }
   188 
   189 void
   190 Cocoa_VideoQuit(_THIS)
   191 {
   192     SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
   193     Cocoa_QuitModes(_this);
   194     Cocoa_QuitKeyboard(_this);
   195     Cocoa_QuitMouse(_this);
   196     SDL_DestroyMutex(data->swaplock);
   197     data->swaplock = NULL;
   198 }
   199 
   200 /* This function assumes that it's called from within an autorelease pool */
   201 NSImage *
   202 Cocoa_CreateImage(SDL_Surface * surface)
   203 {
   204     SDL_Surface *converted;
   205     NSBitmapImageRep *imgrep;
   206     Uint8 *pixels;
   207     int i;
   208     NSImage *img;
   209 
   210     converted = SDL_ConvertSurfaceFormat(surface, SDL_PIXELFORMAT_RGBA32, 0);
   211     if (!converted) {
   212         return nil;
   213     }
   214 
   215     imgrep = [[[NSBitmapImageRep alloc] initWithBitmapDataPlanes: NULL
   216                     pixelsWide: converted->w
   217                     pixelsHigh: converted->h
   218                     bitsPerSample: 8
   219                     samplesPerPixel: 4
   220                     hasAlpha: YES
   221                     isPlanar: NO
   222                     colorSpaceName: NSDeviceRGBColorSpace
   223                     bytesPerRow: converted->pitch
   224                     bitsPerPixel: converted->format->BitsPerPixel] autorelease];
   225     if (imgrep == nil) {
   226         SDL_FreeSurface(converted);
   227         return nil;
   228     }
   229 
   230     /* Copy the pixels */
   231     pixels = [imgrep bitmapData];
   232     SDL_memcpy(pixels, converted->pixels, converted->h * converted->pitch);
   233     SDL_FreeSurface(converted);
   234 
   235     /* Premultiply the alpha channel */
   236     for (i = (surface->h * surface->w); i--; ) {
   237         Uint8 alpha = pixels[3];
   238         pixels[0] = (Uint8)(((Uint16)pixels[0] * alpha) / 255);
   239         pixels[1] = (Uint8)(((Uint16)pixels[1] * alpha) / 255);
   240         pixels[2] = (Uint8)(((Uint16)pixels[2] * alpha) / 255);
   241         pixels += 4;
   242     }
   243 
   244     img = [[[NSImage alloc] initWithSize: NSMakeSize(surface->w, surface->h)] autorelease];
   245     if (img != nil) {
   246         [img addRepresentation: imgrep];
   247     }
   248     return img;
   249 }
   250 
   251 /*
   252  * Mac OS X log support.
   253  *
   254  * This doesn't really have aything to do with the interfaces of the SDL video
   255  *  subsystem, but we need to stuff this into an Objective-C source code file.
   256  *
   257  * NOTE: This is copypasted in src/video/uikit/SDL_uikitvideo.m! Be sure both
   258  *  versions remain identical!
   259  */
   260 
   261 void SDL_NSLog(const char *text)
   262 {
   263     NSLog(@"%s", text);
   264 }
   265 
   266 #endif /* SDL_VIDEO_DRIVER_COCOA */
   267 
   268 /* vim: set ts=4 sw=4 expandtab: */