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SDL_cocoavideo.m
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1 /*
2  Simple DirectMedia Layer
3  Copyright (C) 1997-2013 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_config.h"
22 
23 #if SDL_VIDEO_DRIVER_COCOA
24 
25 #if defined(__APPLE__) && defined(__POWERPC__) && !defined(__APPLE_ALTIVEC__)
26 #include <altivec.h>
27 #undef bool
28 #undef vector
29 #undef pixel
30 #endif
31 
32 #include "SDL.h"
33 #include "SDL_endian.h"
34 #include "SDL_cocoavideo.h"
35 #include "SDL_cocoashape.h"
36 #include "SDL_assert.h"
37 
38 /* Initialization/Query functions */
39 static int Cocoa_VideoInit(_THIS);
40 static void Cocoa_VideoQuit(_THIS);
41 
42 /* Cocoa driver bootstrap functions */
43 
44 static int
45 Cocoa_Available(void)
46 {
47  return (1);
48 }
49 
50 static void
51 Cocoa_DeleteDevice(SDL_VideoDevice * device)
52 {
53  SDL_free(device->driverdata);
54  SDL_free(device);
55 }
56 
57 static SDL_VideoDevice *
58 Cocoa_CreateDevice(int devindex)
59 {
60  SDL_VideoDevice *device;
62 
64 
65  /* Initialize all variables that we clean on shutdown */
66  device = (SDL_VideoDevice *) SDL_calloc(1, sizeof(SDL_VideoDevice));
67  if (device) {
68  data = (struct SDL_VideoData *) SDL_calloc(1, sizeof(SDL_VideoData));
69  } else {
70  data = NULL;
71  }
72  if (!data) {
74  SDL_free(device);
75  return NULL;
76  }
77  device->driverdata = data;
78 
79  /* Find out what version of Mac OS X we're running */
80  Gestalt(gestaltSystemVersion, &data->osversion);
81 
82  /* Set the function pointers */
83  device->VideoInit = Cocoa_VideoInit;
84  device->VideoQuit = Cocoa_VideoQuit;
88  device->PumpEvents = Cocoa_PumpEvents;
89 
98  device->ShowWindow = Cocoa_ShowWindow;
99  device->HideWindow = Cocoa_HideWindow;
100  device->RaiseWindow = Cocoa_RaiseWindow;
111 
115 
116 #if SDL_VIDEO_OPENGL_CGL
117  device->GL_LoadLibrary = Cocoa_GL_LoadLibrary;
118  device->GL_GetProcAddress = Cocoa_GL_GetProcAddress;
119  device->GL_UnloadLibrary = Cocoa_GL_UnloadLibrary;
120  device->GL_CreateContext = Cocoa_GL_CreateContext;
121  device->GL_MakeCurrent = Cocoa_GL_MakeCurrent;
122  device->GL_GetDrawableSize = Cocoa_GL_GetDrawableSize;
123  device->GL_SetSwapInterval = Cocoa_GL_SetSwapInterval;
124  device->GL_GetSwapInterval = Cocoa_GL_GetSwapInterval;
125  device->GL_SwapWindow = Cocoa_GL_SwapWindow;
126  device->GL_DeleteContext = Cocoa_GL_DeleteContext;
127 #endif
128 
132 
136 
137  device->free = Cocoa_DeleteDevice;
138 
139  return device;
140 }
141 
142 VideoBootStrap COCOA_bootstrap = {
143  "cocoa", "SDL Cocoa video driver",
144  Cocoa_Available, Cocoa_CreateDevice
145 };
146 
147 
148 int
149 Cocoa_VideoInit(_THIS)
150 {
154  return 0;
155 }
156 
157 void
158 Cocoa_VideoQuit(_THIS)
159 {
163 }
164 
165 /* This function assumes that it's called from within an autorelease pool */
166 NSImage *
168 {
169  SDL_Surface *converted;
170  NSBitmapImageRep *imgrep;
171  Uint8 *pixels;
172  int i;
173  NSImage *img;
174 
175  converted = SDL_ConvertSurfaceFormat(surface,
178 #else
180 #endif
181  0);
182  if (!converted) {
183  return nil;
184  }
185 
186  imgrep = [[[NSBitmapImageRep alloc] initWithBitmapDataPlanes: NULL
187  pixelsWide: converted->w
188  pixelsHigh: converted->h
189  bitsPerSample: 8
190  samplesPerPixel: 4
191  hasAlpha: YES
192  isPlanar: NO
193  colorSpaceName: NSDeviceRGBColorSpace
194  bytesPerRow: converted->pitch
195  bitsPerPixel: converted->format->BitsPerPixel] autorelease];
196  if (imgrep == nil) {
197  SDL_FreeSurface(converted);
198  return nil;
199  }
200 
201  /* Copy the pixels */
202  pixels = [imgrep bitmapData];
203  SDL_memcpy(pixels, converted->pixels, converted->h * converted->pitch);
204  SDL_FreeSurface(converted);
205 
206  /* Premultiply the alpha channel */
207  for (i = (surface->h * surface->w); i--; ) {
208  Uint8 alpha = pixels[3];
209  pixels[0] = (Uint8)(((Uint16)pixels[0] * alpha) / 255);
210  pixels[1] = (Uint8)(((Uint16)pixels[1] * alpha) / 255);
211  pixels[2] = (Uint8)(((Uint16)pixels[2] * alpha) / 255);
212  pixels += 4;
213  }
214 
215  img = [[[NSImage alloc] initWithSize: NSMakeSize(surface->w, surface->h)] autorelease];
216  if (img != nil) {
217  [img addRepresentation: imgrep];
218  }
219  return img;
220 }
221 
222 /*
223  * Mac OS X log support.
224  *
225  * This doesn't really have aything to do with the interfaces of the SDL video
226  * subsystem, but we need to stuff this into an Objective-C source code file.
227  */
228 
229 void SDL_NSLog(const char *text)
230 {
231  NSLog(@"%s", text);
232 }
233 
234 #endif /* SDL_VIDEO_DRIVER_COCOA */
235 
236 /* vim: set ts=4 sw=4 expandtab: */
void(* SetWindowMaximumSize)(_THIS, SDL_Window *window)
Definition: SDL_sysvideo.h:190
void(* GetDisplayModes)(_THIS, SDL_VideoDisplay *display)
Definition: SDL_sysvideo.h:169
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:195
void Cocoa_SetTextInputRect(_THIS, SDL_Rect *rect)
void Cocoa_RegisterApp(void)
void Cocoa_InitMouse(_THIS)
SDL_bool(* GetWindowWMInfo)(_THIS, SDL_Window *window, struct SDL_SysWMinfo *info)
Definition: SDL_sysvideo.h:215
DECLSPEC void SDLCALL SDL_FreeSurface(SDL_Surface *surface)
Definition: SDL_surface.c:1053
void(* RaiseWindow)(_THIS, SDL_Window *window)
Definition: SDL_sysvideo.h:193
char * Cocoa_GetClipboardText(_THIS)
int(* SetClipboardText)(_THIS, const char *text)
Definition: SDL_sysvideo.h:254
DECLSPEC void *SDLCALL SDL_calloc(size_t nmemb, size_t size)
void Cocoa_MinimizeWindow(_THIS, SDL_Window *window)
#define NULL
Definition: ftobjs.h:61
void(* HideWindow)(_THIS, SDL_Window *window)
Definition: SDL_sysvideo.h:192
void Cocoa_SetWindowIcon(_THIS, SDL_Window *window, SDL_Surface *icon)
int(* GL_MakeCurrent)(_THIS, SDL_Window *window, SDL_GLContext context)
Definition: SDL_sysvideo.h:226
void Cocoa_SetWindowMaximumSize(_THIS, SDL_Window *window)
int(* GetWindowGammaRamp)(_THIS, SDL_Window *window, Uint16 *ramp)
Definition: SDL_sysvideo.h:200
void(* StopTextInput)(_THIS)
Definition: SDL_sysvideo.h:244
void Cocoa_SetWindowBordered(_THIS, SDL_Window *window, SDL_bool bordered)
int(* GetDisplayBounds)(_THIS, SDL_VideoDisplay *display, SDL_Rect *rect)
Definition: SDL_sysvideo.h:164
EGLSurface surface
Definition: eglext.h:74
A collection of pixels used in software blitting.
Definition: SDL_surface.h:69
DECLSPEC void SDLCALL SDL_free(void *mem)
void(* SetWindowGrab)(_THIS, SDL_Window *window, SDL_bool grabbed)
Definition: SDL_sysvideo.h:201
void(* SetWindowIcon)(_THIS, SDL_Window *window, SDL_Surface *icon)
Definition: SDL_sysvideo.h:186
void Cocoa_SetWindowTitle(_THIS, SDL_Window *window)
int(* CreateWindowFrom)(_THIS, SDL_Window *window, const void *data)
Definition: SDL_sysvideo.h:184
void Cocoa_SetWindowPosition(_THIS, SDL_Window *window)
void Cocoa_StartTextInput(_THIS)
void(* free)(_THIS)
Definition: SDL_sysvideo.h:327
void Cocoa_QuitKeyboard(_THIS)
int(* GL_SetSwapInterval)(_THIS, int interval)
Definition: SDL_sysvideo.h:228
static SDL_VideoDevice * _this
Definition: SDL_video.c:92
void Cocoa_RestoreWindow(_THIS, SDL_Window *window)
int Cocoa_SetClipboardText(_THIS, const char *text)
SDL_bool Cocoa_HasClipboardText(_THIS)
int(* CreateWindow)(_THIS, SDL_Window *window)
Definition: SDL_sysvideo.h:183
int Cocoa_SetWindowShape(SDL_WindowShaper *shaper, SDL_Surface *shape, SDL_WindowShapeMode *shape_mode)
void(* GL_UnloadLibrary)(_THIS)
Definition: SDL_sysvideo.h:224
void Cocoa_ShowWindow(_THIS, SDL_Window *window)
void(* GL_GetDrawableSize)(_THIS, SDL_Window *window, int *w, int *h)
Definition: SDL_sysvideo.h:227
int Cocoa_SetDisplayMode(_THIS, SDL_VideoDisplay *display, SDL_DisplayMode *mode)
NSImage * Cocoa_CreateImage(SDL_Surface *surface)
GLint GLenum GLsizei GLsizei GLsizei GLint GLsizei const GLvoid * data
Definition: gl2ext.h:848
int(* SetWindowShape)(SDL_WindowShaper *shaper, SDL_Surface *shape, SDL_WindowShapeMode *shape_mode)
Definition: SDL_sysvideo.h:59
void * pixels
Definition: SDL_surface.h:75
int(* VideoInit)(_THIS)
Definition: SDL_sysvideo.h:148
void Cocoa_QuitMouse(_THIS)
#define _THIS
void Cocoa_PumpEvents(_THIS)
int Cocoa_SetWindowGammaRamp(_THIS, SDL_Window *window, const Uint16 *ramp)
void Cocoa_DestroyWindow(_THIS, SDL_Window *window)
void Cocoa_RaiseWindow(_THIS, SDL_Window *window)
SDL_bool Cocoa_GetWindowWMInfo(_THIS, SDL_Window *window, struct SDL_SysWMinfo *info)
int(* SetWindowGammaRamp)(_THIS, SDL_Window *window, const Uint16 *ramp)
Definition: SDL_sysvideo.h:199
SDL_WindowShaper * Cocoa_CreateShaper(SDL_Window *window)
void(* SetWindowPosition)(_THIS, SDL_Window *window)
Definition: SDL_sysvideo.h:187
GLclampf GLclampf GLclampf alpha
Definition: glew.h:1506
void(* PumpEvents)(_THIS)
Definition: SDL_sysvideo.h:237
void Cocoa_SetWindowFullscreen(_THIS, SDL_Window *window, SDL_VideoDisplay *display, SDL_bool fullscreen)
void(* SetWindowMinimumSize)(_THIS, SDL_Window *window)
Definition: SDL_sysvideo.h:189
DECLSPEC SDL_Surface *SDLCALL SDL_ConvertSurfaceFormat(SDL_Surface *src, Uint32 pixel_format, Uint32 flags)
Definition: SDL_surface.c:928
SDL_WindowShaper *(* CreateShaper)(SDL_Window *window)
Definition: SDL_sysvideo.h:58
int(* GL_GetSwapInterval)(_THIS)
Definition: SDL_sysvideo.h:229
GLint GLvoid * img
Definition: glew.h:1371
#define SDL_OutOfMemory()
Definition: SDL_error.h:52
void(* GL_DeleteContext)(_THIS, SDL_GLContext context)
Definition: SDL_sysvideo.h:231
void(* MaximizeWindow)(_THIS, SDL_Window *window)
Definition: SDL_sysvideo.h:194
GLint GLenum GLsizei GLsizei GLsizei GLint GLenum GLenum const GLvoid * pixels
Definition: gl2ext.h:845
void(* DestroyWindow)(_THIS, SDL_Window *window)
Definition: SDL_sysvideo.h:202
int Cocoa_CreateWindow(_THIS, SDL_Window *window)
int Cocoa_GetWindowGammaRamp(_THIS, SDL_Window *window, Uint16 *ramp)
void(* SetTextInputRect)(_THIS, SDL_Rect *rect)
Definition: SDL_sysvideo.h:245
DECLSPEC void *SDLCALL SDL_memcpy(void *dst, const void *src, size_t len)
Definition: SDL_string.c:293
void(* SetWindowSize)(_THIS, SDL_Window *window)
Definition: SDL_sysvideo.h:188
int(* SetDisplayMode)(_THIS, SDL_VideoDisplay *display, SDL_DisplayMode *mode)
Definition: SDL_sysvideo.h:177
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:129
void Cocoa_SetWindowSize(_THIS, SDL_Window *window)
#define SDL_BIG_ENDIAN
Definition: SDL_endian.h:38
char *(* GetClipboardText)(_THIS)
Definition: SDL_sysvideo.h:255
SDL_GLContext(* GL_CreateContext)(_THIS, SDL_Window *window)
Definition: SDL_sysvideo.h:225
void Cocoa_InitKeyboard(_THIS)
int Cocoa_ResizeWindowShape(SDL_Window *window)
void Cocoa_StopTextInput(_THIS)
int(* GL_LoadLibrary)(_THIS, const char *path)
Definition: SDL_sysvideo.h:222
void(* GL_SwapWindow)(_THIS, SDL_Window *window)
Definition: SDL_sysvideo.h:230
void(* VideoQuit)(_THIS)
Definition: SDL_sysvideo.h:154
void(* ShowWindow)(_THIS, SDL_Window *window)
Definition: SDL_sysvideo.h:191
SDL_ShapeDriver shape_driver
Definition: SDL_sysvideo.h:212
uint16_t Uint16
An unsigned 16-bit integer type.
Definition: SDL_stdinc.h:137
SDL_bool(* HasClipboardText)(_THIS)
Definition: SDL_sysvideo.h:256
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:185
void Cocoa_SetWindowGrab(_THIS, SDL_Window *window, SDL_bool grabbed)
void(* SetWindowBordered)(_THIS, SDL_Window *window, SDL_bool bordered)
Definition: SDL_sysvideo.h:197
void(* StartTextInput)(_THIS)
Definition: SDL_sysvideo.h:243
int i
Definition: pngrutil.c:1377
void(* SetWindowFullscreen)(_THIS, SDL_Window *window, SDL_VideoDisplay *display, SDL_bool fullscreen)
Definition: SDL_sysvideo.h:198
void Cocoa_QuitModes(_THIS)
void Cocoa_InitModes(_THIS)
#define SDL_BYTEORDER
void *(* GL_GetProcAddress)(_THIS, const char *proc)
Definition: SDL_sysvideo.h:223
void Cocoa_MaximizeWindow(_THIS, SDL_Window *window)
int(* ResizeWindowShape)(SDL_Window *window)
Definition: SDL_sysvideo.h:60
void(* RestoreWindow)(_THIS, SDL_Window *window)
Definition: SDL_sysvideo.h:196
void Cocoa_SetWindowMinimumSize(_THIS, SDL_Window *window)