Atlas - SDL_cocoavideo.m
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[FILE BEGIN]
1/*
2  Simple DirectMedia Layer
3  Copyright (C) 1997-2018 Sam Lantinga <[email protected]>
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 */
33static int Cocoa_VideoInit(_THIS);
34static void Cocoa_VideoQuit(_THIS);
35
36/* Cocoa driver bootstrap functions */
37
38static int
39Cocoa_Available(void)
40{
41    return (1);
42}
43
44static void
45Cocoa_DeleteDevice(SDL_VideoDevice * device)
46{
47    SDL_free(device->driverdata);
48    SDL_free(device);
49}
50
51static SDL_VideoDevice *
52Cocoa_CreateDevice(int devindex)
53{
54    SDL_VideoDevice *device;
55    SDL_VideoData *data;
56
57    Cocoa_RegisterApp();
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) {
67        SDL_OutOfMemory();
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;
76    device->GetDisplayBounds = Cocoa_GetDisplayBounds;
77    device->GetDisplayUsableBounds = Cocoa_GetDisplayUsableBounds;
78    device->GetDisplayDPI = Cocoa_GetDisplayDPI;
79    device->GetDisplayModes = Cocoa_GetDisplayModes;
80    device->SetDisplayMode = Cocoa_SetDisplayMode;
81    device->PumpEvents = Cocoa_PumpEvents;
82    device->SuspendScreenSaver = Cocoa_SuspendScreenSaver;
83
84    device->CreateSDLWindow = Cocoa_CreateWindow;
85    device->CreateSDLWindowFrom = Cocoa_CreateWindowFrom;
86    device->SetWindowTitle = Cocoa_SetWindowTitle;
87    device->SetWindowIcon = Cocoa_SetWindowIcon;
88    device->SetWindowPosition = Cocoa_SetWindowPosition;
89    device->SetWindowSize = Cocoa_SetWindowSize;
90    device->SetWindowMinimumSize = Cocoa_SetWindowMinimumSize;
91    device->SetWindowMaximumSize = Cocoa_SetWindowMaximumSize;
92    device->SetWindowOpacity = Cocoa_SetWindowOpacity;
93    device->ShowWindow = Cocoa_ShowWindow;
94    device->HideWindow = Cocoa_HideWindow;
95    device->RaiseWindow = Cocoa_RaiseWindow;
96    device->MaximizeWindow = Cocoa_MaximizeWindow;
97    device->MinimizeWindow = Cocoa_MinimizeWindow;
98    device->RestoreWindow = Cocoa_RestoreWindow;
99    device->SetWindowBordered = Cocoa_SetWindowBordered;
100    device->SetWindowResizable = Cocoa_SetWindowResizable;
101    device->SetWindowFullscreen = Cocoa_SetWindowFullscreen;
102    device->SetWindowGammaRamp = Cocoa_SetWindowGammaRamp;
103    device->GetWindowGammaRamp = Cocoa_GetWindowGammaRamp;
104    device->SetWindowGrab = Cocoa_SetWindowGrab;
105    device->DestroyWindow = Cocoa_DestroyWindow;
106    device->GetWindowWMInfo = Cocoa_GetWindowWMInfo;
107    device->SetWindowHitTest = Cocoa_SetWindowHitTest;
108    device->AcceptDragAndDrop = Cocoa_AcceptDragAndDrop;
109
110    device->shape_driver.CreateShaper = Cocoa_CreateShaper;
111    device->shape_driver.SetWindowShape = Cocoa_SetWindowShape;
112    device->shape_driver.ResizeWindowShape = Cocoa_ResizeWindowShape;
113
114#if SDL_VIDEO_OPENGL_CGL
115    device->GL_LoadLibrary = Cocoa_GL_LoadLibrary;
116    device->GL_GetProcAddress = Cocoa_GL_GetProcAddress;
117    device->GL_UnloadLibrary = Cocoa_GL_UnloadLibrary;
118    device->GL_CreateContext = Cocoa_GL_CreateContext;
119    device->GL_MakeCurrent = Cocoa_GL_MakeCurrent;
120    device->GL_GetDrawableSize = Cocoa_GL_GetDrawableSize;
121    device->GL_SetSwapInterval = Cocoa_GL_SetSwapInterval;
122    device->GL_GetSwapInterval = Cocoa_GL_GetSwapInterval;
123    device->GL_SwapWindow = Cocoa_GL_SwapWindow;
124    device->GL_DeleteContext = Cocoa_GL_DeleteContext;
125#elif SDL_VIDEO_OPENGL_EGL
126    device->GL_LoadLibrary = Cocoa_GLES_LoadLibrary;
127    device->GL_GetProcAddress = Cocoa_GLES_GetProcAddress;
128    device->GL_UnloadLibrary = Cocoa_GLES_UnloadLibrary;
129    device->GL_CreateContext = Cocoa_GLES_CreateContext;
130    device->GL_MakeCurrent = Cocoa_GLES_MakeCurrent;
131    device->GL_SetSwapInterval = Cocoa_GLES_SetSwapInterval;
132    device->GL_GetSwapInterval = Cocoa_GLES_GetSwapInterval;
133    device->GL_SwapWindow = Cocoa_GLES_SwapWindow;
134    device->GL_DeleteContext = Cocoa_GLES_DeleteContext;
135#endif
136
137#if SDL_VIDEO_VULKAN
138    device->Vulkan_LoadLibrary = Cocoa_Vulkan_LoadLibrary;
139    device->Vulkan_UnloadLibrary = Cocoa_Vulkan_UnloadLibrary;
140    device->Vulkan_GetInstanceExtensions = Cocoa_Vulkan_GetInstanceExtensions;
141    device->Vulkan_CreateSurface = Cocoa_Vulkan_CreateSurface;
142    device->Vulkan_GetDrawableSize = Cocoa_Vulkan_GetDrawableSize;
143#endif
144
145    device->StartTextInput = Cocoa_StartTextInput;
146    device->StopTextInput = Cocoa_StopTextInput;
147    device->SetTextInputRect = Cocoa_SetTextInputRect;
148
149    device->SetClipboardText = Cocoa_SetClipboardText;
150    device->GetClipboardText = Cocoa_GetClipboardText;
151    device->HasClipboardText = Cocoa_HasClipboardText;
152
153    device->free = Cocoa_DeleteDevice;
154
155    return device;
156}
157
158VideoBootStrap COCOA_bootstrap = {
159    "cocoa", "SDL Cocoa video driver",
160    Cocoa_Available, Cocoa_CreateDevice
161};
162
163
164int
165Cocoa_VideoInit(_THIS)
166{
167    SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
168
169    Cocoa_InitModes(_this);
170    Cocoa_InitKeyboard(_this);
171    Cocoa_InitMouse(_this);
172
173    data->allow_spaces = ((floor(NSAppKitVersionNumber) > NSAppKitVersionNumber10_6) && SDL_GetHintBoolean(SDL_HINT_VIDEO_MAC_FULLSCREEN_SPACES, SDL_TRUE));
174
175    /* The IOPM assertion API can disable the screensaver as of 10.7. */
176    data->screensaver_use_iopm = floor(NSAppKitVersionNumber) > NSAppKitVersionNumber10_6;
177
178    return 0;
179}
180
181void
182Cocoa_VideoQuit(_THIS)
183{
184    Cocoa_QuitModes(_this);
185    Cocoa_QuitKeyboard(_this);
186    Cocoa_QuitMouse(_this);
187}
188
189/* This function assumes that it's called from within an autorelease pool */
190NSImage *
191Cocoa_CreateImage(SDL_Surface * surface)
192{
193    SDL_Surface *converted;
194    NSBitmapImageRep *imgrep;
195    Uint8 *pixels;
196    int i;
197    NSImage *img;
198
199    converted = SDL_ConvertSurfaceFormat(surface, SDL_PIXELFORMAT_RGBA32, 0);
200    if (!converted) {
201        return nil;
202    }
203
204    imgrep = [[[NSBitmapImageRep alloc] initWithBitmapDataPlanes: NULL
205                    pixelsWide: converted->w
206                    pixelsHigh: converted->h
207                    bitsPerSample: 8
208                    samplesPerPixel: 4
209                    hasAlpha: YES
210                    isPlanar: NO
211                    colorSpaceName: NSDeviceRGBColorSpace
212                    bytesPerRow: converted->pitch
213                    bitsPerPixel: converted->format->BitsPerPixel] autorelease];
214    if (imgrep == nil) {
215        SDL_FreeSurface(converted);
216        return nil;
217    }
218
219    /* Copy the pixels */
220    pixels = [imgrep bitmapData];
221    SDL_memcpy(pixels, converted->pixels, converted->h * converted->pitch);
222    SDL_FreeSurface(converted);
223
224    /* Premultiply the alpha channel */
225    for (i = (surface->h * surface->w); i--; ) {
226        Uint8 alpha = pixels[3];
227        pixels[0] = (Uint8)(((Uint16)pixels[0] * alpha) / 255);
228        pixels[1] = (Uint8)(((Uint16)pixels[1] * alpha) / 255);
229        pixels[2] = (Uint8)(((Uint16)pixels[2] * alpha) / 255);
230        pixels += 4;
231    }
232
233    img = [[[NSImage alloc] initWithSize: NSMakeSize(surface->w, surface->h)] autorelease];
234    if (img != nil) {
235        [img addRepresentation: imgrep];
236    }
237    return img;
238}
239
240/*
241 * Mac OS X log support.
242 *
243 * This doesn't really have aything to do with the interfaces of the SDL video
244 *  subsystem, but we need to stuff this into an Objective-C source code file.
245 */
246
247void SDL_NSLog(const char *text)
248{
249    NSLog(@"%s", text);
250}
251
252#endif /* SDL_VIDEO_DRIVER_COCOA */
253
254/* vim: set ts=4 sw=4 expandtab: */
255
[FILE END]
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