SDL  2.0
SDL_cocoavideo.m
Go to the documentation of this file.
1 /*
2  Simple DirectMedia Layer
3  Copyright (C) 1997-2017 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_assert.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 int
39 Cocoa_Available(void)
40 {
41  return (1);
42 }
43 
44 static void
45 Cocoa_DeleteDevice(SDL_VideoDevice * device)
46 {
47  SDL_free(device->driverdata);
48  SDL_free(device);
49 }
50 
51 static SDL_VideoDevice *
52 Cocoa_CreateDevice(int devindex)
53 {
56 
58 
59  /* Initialize all variables that we clean on shutdown */
60  device = (SDL_VideoDevice *) SDL_calloc(1, sizeof(SDL_VideoDevice));
61  if (device) {
62  data = (struct SDL_VideoData *) SDL_calloc(1, sizeof(SDL_VideoData));
63  } else {
64  data = NULL;
65  }
66  if (!data) {
68  SDL_free(device);
69  return NULL;
70  }
71  device->driverdata = data;
72 
73  /* Set the function pointers */
74  device->VideoInit = Cocoa_VideoInit;
75  device->VideoQuit = Cocoa_VideoQuit;
81  device->PumpEvents = Cocoa_PumpEvents;
83 
93  device->ShowWindow = Cocoa_ShowWindow;
94  device->HideWindow = Cocoa_HideWindow;
108 
112 
113 #if SDL_VIDEO_OPENGL_CGL
114  device->GL_LoadLibrary = Cocoa_GL_LoadLibrary;
115  device->GL_GetProcAddress = Cocoa_GL_GetProcAddress;
116  device->GL_UnloadLibrary = Cocoa_GL_UnloadLibrary;
117  device->GL_CreateContext = Cocoa_GL_CreateContext;
118  device->GL_MakeCurrent = Cocoa_GL_MakeCurrent;
119  device->GL_GetDrawableSize = Cocoa_GL_GetDrawableSize;
120  device->GL_SetSwapInterval = Cocoa_GL_SetSwapInterval;
121  device->GL_GetSwapInterval = Cocoa_GL_GetSwapInterval;
122  device->GL_SwapWindow = Cocoa_GL_SwapWindow;
123  device->GL_DeleteContext = Cocoa_GL_DeleteContext;
124 #endif
125 
126 #if SDL_VIDEO_VULKAN
127  device->Vulkan_LoadLibrary = Cocoa_Vulkan_LoadLibrary;
128  device->Vulkan_UnloadLibrary = Cocoa_Vulkan_UnloadLibrary;
129  device->Vulkan_GetInstanceExtensions = Cocoa_Vulkan_GetInstanceExtensions;
130  device->Vulkan_CreateSurface = Cocoa_Vulkan_CreateSurface;
131  device->Vulkan_GetDrawableSize = Cocoa_Vulkan_GetDrawableSize;
132 #endif
133 
137 
141 
142  device->free = Cocoa_DeleteDevice;
143 
144  return device;
145 }
146 
148  "cocoa", "SDL Cocoa video driver",
149  Cocoa_Available, Cocoa_CreateDevice
150 };
151 
152 
153 int
154 Cocoa_VideoInit(_THIS)
155 {
157 
161 
162  data->allow_spaces = ((floor(NSAppKitVersionNumber) > NSAppKitVersionNumber10_6) && SDL_GetHintBoolean(SDL_HINT_VIDEO_MAC_FULLSCREEN_SPACES, SDL_TRUE));
163 
164  /* The IOPM assertion API can disable the screensaver as of 10.7. */
165  data->screensaver_use_iopm = floor(NSAppKitVersionNumber) > NSAppKitVersionNumber10_6;
166 
167  return 0;
168 }
169 
170 void
171 Cocoa_VideoQuit(_THIS)
172 {
176 }
177 
178 /* This function assumes that it's called from within an autorelease pool */
179 NSImage *
181 {
182  SDL_Surface *converted;
183  NSBitmapImageRep *imgrep;
184  Uint8 *pixels;
185  int i;
186  NSImage *img;
187 
188  converted = SDL_ConvertSurfaceFormat(surface, SDL_PIXELFORMAT_RGBA32, 0);
189  if (!converted) {
190  return nil;
191  }
192 
193  imgrep = [[[NSBitmapImageRep alloc] initWithBitmapDataPlanes: NULL
194  pixelsWide: converted->w
195  pixelsHigh: converted->h
196  bitsPerSample: 8
197  samplesPerPixel: 4
198  hasAlpha: YES
199  isPlanar: NO
200  colorSpaceName: NSDeviceRGBColorSpace
201  bytesPerRow: converted->pitch
202  bitsPerPixel: converted->format->BitsPerPixel] autorelease];
203  if (imgrep == nil) {
204  SDL_FreeSurface(converted);
205  return nil;
206  }
207 
208  /* Copy the pixels */
209  pixels = [imgrep bitmapData];
210  SDL_memcpy(pixels, converted->pixels, converted->h * converted->pitch);
211  SDL_FreeSurface(converted);
212 
213  /* Premultiply the alpha channel */
214  for (i = (surface->h * surface->w); i--; ) {
215  Uint8 alpha = pixels[3];
216  pixels[0] = (Uint8)(((Uint16)pixels[0] * alpha) / 255);
217  pixels[1] = (Uint8)(((Uint16)pixels[1] * alpha) / 255);
218  pixels[2] = (Uint8)(((Uint16)pixels[2] * alpha) / 255);
219  pixels += 4;
220  }
221 
222  img = [[[NSImage alloc] initWithSize: NSMakeSize(surface->w, surface->h)] autorelease];
223  if (img != nil) {
224  [img addRepresentation: imgrep];
225  }
226  return img;
227 }
228 
229 /*
230  * Mac OS X log support.
231  *
232  * This doesn't really have aything to do with the interfaces of the SDL video
233  * subsystem, but we need to stuff this into an Objective-C source code file.
234  */
235 
236 void SDL_NSLog(const char *text)
237 {
238  NSLog(@"%s", text);
239 }
240 
241 #endif /* SDL_VIDEO_DRIVER_COCOA */
242 
243 /* vim: set ts=4 sw=4 expandtab: */
void(* SetWindowMaximumSize)(_THIS, SDL_Window *window)
Definition: SDL_sysvideo.h:217
void(* GetDisplayModes)(_THIS, SDL_VideoDisplay *display)
Definition: SDL_sysvideo.h:196
void Cocoa_GetDisplayModes(_THIS, SDL_VideoDisplay *display)
int Cocoa_CreateWindowFrom(_THIS, SDL_Window *window, const void *data)
void(* MinimizeWindow)(_THIS, SDL_Window *window)
Definition: SDL_sysvideo.h:226
void Cocoa_SetTextInputRect(_THIS, SDL_Rect *rect)
void Cocoa_RegisterApp(void)
void Cocoa_InitMouse(_THIS)
#define SDL_ConvertSurfaceFormat
SDL_bool(* GetWindowWMInfo)(_THIS, SDL_Window *window, struct SDL_SysWMinfo *info)
Definition: SDL_sysvideo.h:247
void(* RaiseWindow)(_THIS, SDL_Window *window)
Definition: SDL_sysvideo.h:224
char * Cocoa_GetClipboardText(_THIS)
int(* SetClipboardText)(_THIS, const char *text)
Definition: SDL_sysvideo.h:297
void Cocoa_MinimizeWindow(_THIS, SDL_Window *window)
int(* GetDisplayDPI)(_THIS, SDL_VideoDisplay *display, float *ddpi, float *hdpi, float *vdpi)
Definition: SDL_sysvideo.h:186
void(* HideWindow)(_THIS, SDL_Window *window)
Definition: SDL_sysvideo.h:223
void Cocoa_SetWindowIcon(_THIS, SDL_Window *window, SDL_Surface *icon)
int(* GL_MakeCurrent)(_THIS, SDL_Window *window, SDL_GLContext context)
Definition: SDL_sysvideo.h:258
void Cocoa_SetWindowMaximumSize(_THIS, SDL_Window *window)
int(* GetWindowGammaRamp)(_THIS, SDL_Window *window, Uint16 *ramp)
Definition: SDL_sysvideo.h:232
void Cocoa_SetWindowResizable(_THIS, SDL_Window *window, SDL_bool resizable)
void(* StopTextInput)(_THIS)
Definition: SDL_sysvideo.h:287
void Cocoa_SetWindowBordered(_THIS, SDL_Window *window, SDL_bool bordered)
int(* GetDisplayBounds)(_THIS, SDL_VideoDisplay *display, SDL_Rect *rect)
Definition: SDL_sysvideo.h:181
EGLSurface surface
Definition: eglext.h:248
A collection of pixels used in software blitting.
Definition: SDL_surface.h:69
void(* SetWindowGrab)(_THIS, SDL_Window *window, SDL_bool grabbed)
Definition: SDL_sysvideo.h:233
int(* GetDisplayUsableBounds)(_THIS, SDL_VideoDisplay *display, SDL_Rect *rect)
Definition: SDL_sysvideo.h:191
void(* SetWindowIcon)(_THIS, SDL_Window *window, SDL_Surface *icon)
Definition: SDL_sysvideo.h:213
GLint GLenum GLsizei GLsizei GLsizei GLint GLsizei const GLvoid * data
Definition: SDL_opengl.h:1974
void Cocoa_SuspendScreenSaver(_THIS)
void Cocoa_SetWindowTitle(_THIS, SDL_Window *window)
SDL_bool(* Vulkan_CreateSurface)(_THIS, SDL_Window *window, VkInstance instance, VkSurfaceKHR *surface)
Definition: SDL_sysvideo.h:273
void Cocoa_SetWindowPosition(_THIS, SDL_Window *window)
int(* Vulkan_LoadLibrary)(_THIS, const char *path)
Definition: SDL_sysvideo.h:270
void Cocoa_StartTextInput(_THIS)
void(* free)(_THIS)
Definition: SDL_sysvideo.h:390
GLfloat GLfloat GLfloat alpha
int Cocoa_GetDisplayUsableBounds(_THIS, SDL_VideoDisplay *display, SDL_Rect *rect)
#define SDL_GetHintBoolean
void Cocoa_QuitKeyboard(_THIS)
int(* GL_SetSwapInterval)(_THIS, int interval)
Definition: SDL_sysvideo.h:260
static SDL_VideoDevice * _this
Definition: SDL_video.c:121
void Cocoa_RestoreWindow(_THIS, SDL_Window *window)
int Cocoa_SetClipboardText(_THIS, const char *text)
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:50
SDL_bool Cocoa_HasClipboardText(_THIS)
static SDL_AudioDeviceID device
Definition: loopwave.c:37
int Cocoa_SetWindowShape(SDL_WindowShaper *shaper, SDL_Surface *shape, SDL_WindowShapeMode *shape_mode)
void(* GL_UnloadLibrary)(_THIS)
Definition: SDL_sysvideo.h:256
int(* CreateSDLWindowFrom)(_THIS, SDL_Window *window, const void *data)
Definition: SDL_sysvideo.h:211
void Cocoa_ShowWindow(_THIS, SDL_Window *window)
void(* GL_GetDrawableSize)(_THIS, SDL_Window *window, int *w, int *h)
Definition: SDL_sysvideo.h:259
#define SDL_memcpy
void * SDL_calloc(size_t nmemb, size_t size)
GLint GLvoid * img
Definition: SDL_opengl.h:1980
int Cocoa_SetDisplayMode(_THIS, SDL_VideoDisplay *display, SDL_DisplayMode *mode)
NSImage * Cocoa_CreateImage(SDL_Surface *surface)
int(* CreateSDLWindow)(_THIS, SDL_Window *window)
Definition: SDL_sysvideo.h:210
int(* SetWindowShape)(SDL_WindowShaper *shaper, SDL_Surface *shape, SDL_WindowShapeMode *shape_mode)
Definition: SDL_sysvideo.h:61
void * pixels
Definition: SDL_surface.h:75
int(* VideoInit)(_THIS)
Definition: SDL_sysvideo.h:160
#define SDL_FreeSurface
void Cocoa_QuitMouse(_THIS)
#define _THIS
uint8_t Uint8
Definition: SDL_stdinc.h:157
void Cocoa_PumpEvents(_THIS)
void SDL_free(void *mem)
void(* Vulkan_UnloadLibrary)(_THIS)
Definition: SDL_sysvideo.h:271
int Cocoa_SetWindowGammaRamp(_THIS, SDL_Window *window, const Uint16 *ramp)
void Cocoa_DestroyWindow(_THIS, SDL_Window *window)
#define SDL_HINT_VIDEO_MAC_FULLSCREEN_SPACES
A variable that dictates policy for fullscreen Spaces on Mac OS X.
Definition: SDL_hints.h:664
void Cocoa_RaiseWindow(_THIS, SDL_Window *window)
SDL_bool Cocoa_GetWindowWMInfo(_THIS, SDL_Window *window, struct SDL_SysWMinfo *info)
void(* SetWindowResizable)(_THIS, SDL_Window *window, SDL_bool resizable)
Definition: SDL_sysvideo.h:229
int(* SetWindowGammaRamp)(_THIS, SDL_Window *window, const Uint16 *ramp)
Definition: SDL_sysvideo.h:231
BOOL screensaver_use_iopm
int Cocoa_GetDisplayDPI(_THIS, SDL_VideoDisplay *display, float *ddpi, float *hpdi, float *vdpi)
SDL_WindowShaper * Cocoa_CreateShaper(SDL_Window *window)
void(* SetWindowPosition)(_THIS, SDL_Window *window)
Definition: SDL_sysvideo.h:214
int Cocoa_SetWindowOpacity(_THIS, SDL_Window *window, float opacity)
GLint GLint GLsizei GLsizei GLsizei GLint GLenum GLenum const GLvoid * pixels
Definition: SDL_opengl.h:1572
void(* PumpEvents)(_THIS)
Definition: SDL_sysvideo.h:280
void Cocoa_SetWindowFullscreen(_THIS, SDL_Window *window, SDL_VideoDisplay *display, SDL_bool fullscreen)
void(* SetWindowMinimumSize)(_THIS, SDL_Window *window)
Definition: SDL_sysvideo.h:216
void(* SuspendScreenSaver)(_THIS)
Definition: SDL_sysvideo.h:283
SDL_WindowShaper *(* CreateShaper)(SDL_Window *window)
Definition: SDL_sysvideo.h:60
int(* GL_GetSwapInterval)(_THIS)
Definition: SDL_sysvideo.h:261
#define NULL
Definition: begin_code.h:164
#define SDL_OutOfMemory()
Definition: SDL_error.h:52
void(* GL_DeleteContext)(_THIS, SDL_GLContext context)
Definition: SDL_sysvideo.h:263
void(* MaximizeWindow)(_THIS, SDL_Window *window)
Definition: SDL_sysvideo.h:225
void(* DestroyWindow)(_THIS, SDL_Window *window)
Definition: SDL_sysvideo.h:234
int Cocoa_CreateWindow(_THIS, SDL_Window *window)
int(* GL_SwapWindow)(_THIS, SDL_Window *window)
Definition: SDL_sysvideo.h:262
int Cocoa_GetWindowGammaRamp(_THIS, SDL_Window *window, Uint16 *ramp)
static char text[MAX_TEXT_LENGTH]
Definition: testime.c:47
void(* SetTextInputRect)(_THIS, SDL_Rect *rect)
Definition: SDL_sysvideo.h:288
void(* SetWindowSize)(_THIS, SDL_Window *window)
Definition: SDL_sysvideo.h:215
int(* SetDisplayMode)(_THIS, SDL_VideoDisplay *display, SDL_DisplayMode *mode)
Definition: SDL_sysvideo.h:204
void Cocoa_SetWindowSize(_THIS, SDL_Window *window)
char *(* GetClipboardText)(_THIS)
Definition: SDL_sysvideo.h:298
SDL_GLContext(* GL_CreateContext)(_THIS, SDL_Window *window)
Definition: SDL_sysvideo.h:257
void Cocoa_InitKeyboard(_THIS)
SDL_bool(* Vulkan_GetInstanceExtensions)(_THIS, SDL_Window *window, unsigned *count, const char **names)
Definition: SDL_sysvideo.h:272
int Cocoa_ResizeWindowShape(SDL_Window *window)
void Cocoa_StopTextInput(_THIS)
VideoBootStrap COCOA_bootstrap
void(* Vulkan_GetDrawableSize)(_THIS, SDL_Window *window, int *w, int *h)
Definition: SDL_sysvideo.h:274
int(* GL_LoadLibrary)(_THIS, const char *path)
Definition: SDL_sysvideo.h:254
void(* VideoQuit)(_THIS)
Definition: SDL_sysvideo.h:166
void(* ShowWindow)(_THIS, SDL_Window *window)
Definition: SDL_sysvideo.h:222
uint16_t Uint16
Definition: SDL_stdinc.h:169
SDL_ShapeDriver shape_driver
Definition: SDL_sysvideo.h:244
SDL_bool(* HasClipboardText)(_THIS)
Definition: SDL_sysvideo.h:299
void Cocoa_HideWindow(_THIS, SDL_Window *window)
int Cocoa_GetDisplayBounds(_THIS, SDL_VideoDisplay *display, SDL_Rect *rect)
void(* SetWindowTitle)(_THIS, SDL_Window *window)
Definition: SDL_sysvideo.h:212
void Cocoa_SetWindowGrab(_THIS, SDL_Window *window, SDL_bool grabbed)
void(* SetWindowBordered)(_THIS, SDL_Window *window, SDL_bool bordered)
Definition: SDL_sysvideo.h:228
void(* StartTextInput)(_THIS)
Definition: SDL_sysvideo.h:286
void(* SetWindowFullscreen)(_THIS, SDL_Window *window, SDL_VideoDisplay *display, SDL_bool fullscreen)
Definition: SDL_sysvideo.h:230
void Cocoa_QuitModes(_THIS)
#define floor
Definition: math_private.h:37
void Cocoa_InitModes(_THIS)
void *(* GL_GetProcAddress)(_THIS, const char *proc)
Definition: SDL_sysvideo.h:255
void Cocoa_MaximizeWindow(_THIS, SDL_Window *window)
int(* ResizeWindowShape)(SDL_Window *window)
Definition: SDL_sysvideo.h:62
void(* RestoreWindow)(_THIS, SDL_Window *window)
Definition: SDL_sysvideo.h:227
int(* SetWindowHitTest)(SDL_Window *window, SDL_bool enabled)
Definition: SDL_sysvideo.h:305
int(* SetWindowOpacity)(_THIS, SDL_Window *window, float opacity)
Definition: SDL_sysvideo.h:219
int Cocoa_SetWindowHitTest(SDL_Window *window, SDL_bool enabled)
void Cocoa_SetWindowMinimumSize(_THIS, SDL_Window *window)