src/video/cocoa/SDL_cocoavideo.m
author Sam Lantinga <slouken@libsdl.org>
Fri, 08 Apr 2011 13:03:26 -0700
changeset 5535 96594ac5fd1a
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child 5544 7bf3c86d8b60
permissions -rw-r--r--
SDL 1.3 is now under the zlib license.
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/*
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  Simple DirectMedia Layer
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  Copyright (C) 1997-2011 Sam Lantinga <slouken@libsdl.org>
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  This software is provided 'as-is', without any express or implied
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  warranty.  In no event will the authors be held liable for any damages
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  arising from the use of this software.
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  Permission is granted to anyone to use this software for any purpose,
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  including commercial applications, and to alter it and redistribute it
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  freely, subject to the following restrictions:
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  1. The origin of this software must not be misrepresented; you must not
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     claim that you wrote the original software. If you use this software
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     in a product, an acknowledgment in the product documentation would be
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     appreciated but is not required.
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  2. Altered source versions must be plainly marked as such, and must not be
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     misrepresented as being the original software.
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  3. This notice may not be removed or altered from any source distribution.
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*/
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#include "SDL_config.h"
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#include "SDL_endian.h"
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#include "SDL_cocoavideo.h"
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#include "SDL_cocoashape.h"
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#include "SDL_assert.h"
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/* Initialization/Query functions */
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static int Cocoa_VideoInit(_THIS);
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static void Cocoa_VideoQuit(_THIS);
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/* Cocoa driver bootstrap functions */
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static int
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Cocoa_Available(void)
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{
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    return (1);
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}
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static void
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Cocoa_DeleteDevice(SDL_VideoDevice * device)
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{
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    SDL_free(device->driverdata);
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    SDL_free(device);
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}
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static SDL_VideoDevice *
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Cocoa_CreateDevice(int devindex)
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{
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    SDL_VideoDevice *device;
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    SDL_VideoData *data;
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    Cocoa_RegisterApp();
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    /* Initialize all variables that we clean on shutdown */
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    device = (SDL_VideoDevice *) SDL_calloc(1, sizeof(SDL_VideoDevice));
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    if (device) {
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        data = (struct SDL_VideoData *) SDL_calloc(1, sizeof(SDL_VideoData));
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    } else {
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        data = NULL;
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    }
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    if (!data) {
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        SDL_OutOfMemory();
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        if (device) {
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            SDL_free(device);
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        }
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        return NULL;
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    }
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    device->driverdata = data;
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    /* Find out what version of Mac OS X we're running */
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    Gestalt(gestaltSystemVersion, &data->osversion);
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    /* Set the function pointers */
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    device->VideoInit = Cocoa_VideoInit;
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    device->VideoQuit = Cocoa_VideoQuit;
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    device->GetDisplayBounds = Cocoa_GetDisplayBounds;
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    device->GetDisplayModes = Cocoa_GetDisplayModes;
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    device->SetDisplayMode = Cocoa_SetDisplayMode;
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    device->PumpEvents = Cocoa_PumpEvents;
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    device->CreateWindow = Cocoa_CreateWindow;
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    device->CreateWindowFrom = Cocoa_CreateWindowFrom;
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    device->SetWindowTitle = Cocoa_SetWindowTitle;
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    device->SetWindowIcon = Cocoa_SetWindowIcon;
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    device->SetWindowPosition = Cocoa_SetWindowPosition;
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    device->SetWindowSize = Cocoa_SetWindowSize;
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    device->ShowWindow = Cocoa_ShowWindow;
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    device->HideWindow = Cocoa_HideWindow;
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    device->RaiseWindow = Cocoa_RaiseWindow;
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    device->MaximizeWindow = Cocoa_MaximizeWindow;
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    device->MinimizeWindow = Cocoa_MinimizeWindow;
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    device->RestoreWindow = Cocoa_RestoreWindow;
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    device->SetWindowFullscreen = Cocoa_SetWindowFullscreen;
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    device->SetWindowGammaRamp = Cocoa_SetWindowGammaRamp;
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    device->GetWindowGammaRamp = Cocoa_GetWindowGammaRamp;
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    device->SetWindowGrab = Cocoa_SetWindowGrab;
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    device->DestroyWindow = Cocoa_DestroyWindow;
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    device->GetWindowWMInfo = Cocoa_GetWindowWMInfo;
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    device->shape_driver.CreateShaper = Cocoa_CreateShaper;
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    device->shape_driver.SetWindowShape = Cocoa_SetWindowShape;
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    device->shape_driver.ResizeWindowShape = Cocoa_ResizeWindowShape;
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#if SDL_VIDEO_OPENGL_CGL
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    device->GL_LoadLibrary = Cocoa_GL_LoadLibrary;
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    device->GL_GetProcAddress = Cocoa_GL_GetProcAddress;
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    device->GL_UnloadLibrary = Cocoa_GL_UnloadLibrary;
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    device->GL_CreateContext = Cocoa_GL_CreateContext;
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    device->GL_MakeCurrent = Cocoa_GL_MakeCurrent;
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    device->GL_SetSwapInterval = Cocoa_GL_SetSwapInterval;
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    device->GL_GetSwapInterval = Cocoa_GL_GetSwapInterval;
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    device->GL_SwapWindow = Cocoa_GL_SwapWindow;
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    device->GL_DeleteContext = Cocoa_GL_DeleteContext;
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#endif
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    device->StartTextInput = Cocoa_StartTextInput;
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    device->StopTextInput = Cocoa_StopTextInput;
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    device->SetTextInputRect = Cocoa_SetTextInputRect;
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    device->SetClipboardText = Cocoa_SetClipboardText;
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    device->GetClipboardText = Cocoa_GetClipboardText;
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    device->HasClipboardText = Cocoa_HasClipboardText;
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    device->free = Cocoa_DeleteDevice;
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    return device;
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}
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VideoBootStrap COCOA_bootstrap = {
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    "cocoa", "SDL Cocoa video driver",
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    Cocoa_Available, Cocoa_CreateDevice
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};
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int
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Cocoa_VideoInit(_THIS)
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{
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    Cocoa_InitModes(_this);
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    Cocoa_InitKeyboard(_this);
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    Cocoa_InitMouse(_this);
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    return 0;
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}
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void
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Cocoa_VideoQuit(_THIS)
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{
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    Cocoa_QuitModes(_this);
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    Cocoa_QuitKeyboard(_this);
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    Cocoa_QuitMouse(_this);
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}
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5375
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/* This function assumes that it's called from within an autorelease pool */
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NSImage *
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Cocoa_CreateImage(SDL_Surface * surface)
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{
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    SDL_Surface *converted;
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    NSBitmapImageRep *imgrep;
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    Uint8 *pixels;
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    int i;
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    NSImage *img;
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    converted = SDL_ConvertSurfaceFormat(surface, 
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#if SDL_BYTEORDER == SDL_BIG_ENDIAN
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                                         SDL_PIXELFORMAT_RGBA8888,
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#else
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                                         SDL_PIXELFORMAT_ABGR8888,
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#endif
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                                         0);
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    if (!converted) {
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        return nil;
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    }
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    imgrep = [[[NSBitmapImageRep alloc] initWithBitmapDataPlanes: NULL
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                    pixelsWide: converted->w
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                    pixelsHigh: converted->h
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                    bitsPerSample: 8
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                    samplesPerPixel: 4
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                    hasAlpha: YES
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                    isPlanar: NO
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                    colorSpaceName: NSDeviceRGBColorSpace
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                    bytesPerRow: converted->pitch
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                    bitsPerPixel: converted->format->BitsPerPixel] autorelease];
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    if (imgrep == nil) {
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        SDL_FreeSurface(converted);
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        return nil;
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    }
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    /* Copy the pixels */
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    pixels = [imgrep bitmapData];
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    SDL_memcpy(pixels, converted->pixels, converted->h * converted->pitch);
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    SDL_FreeSurface(converted);
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    /* Premultiply the alpha channel */
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    for (i = (converted->h * converted->w); i--; ) {
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        Uint8 alpha = pixels[3];
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        pixels[0] = (Uint8)(((Uint16)pixels[0] * alpha) / 255);
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        pixels[1] = (Uint8)(((Uint16)pixels[1] * alpha) / 255);
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        pixels[2] = (Uint8)(((Uint16)pixels[2] * alpha) / 255);
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        pixels += 4;
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    }
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    img = [[[NSImage alloc] initWithSize: NSMakeSize(surface->w, surface->h)] autorelease];
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    if (img != nil) {
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        [img addRepresentation: imgrep];
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    }
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    return img;
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}
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/*
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 * Mac OS X assertion support.
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 *
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 * This doesn't really have aything to do with the interfaces of the SDL video
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 *  subsystem, but we need to stuff this into an Objective-C source code file.
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 */
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SDL_assert_state
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SDL_PromptAssertion_cocoa(const SDL_assert_data *data)
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   219
{
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   220
    NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
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   222
    NSString *msg = [NSString stringWithFormat:
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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   223
            @"Assertion failure at %s (%s:%d), triggered %u time%s:\n  '%s'",
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   224
                data->function, data->filename, data->linenum,
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   225
                data->trigger_count, (data->trigger_count == 1) ? "" : "s",
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diff changeset
   226
                data->condition];
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   227
3660
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   228
    NSLog(@"%s", msg);
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   229
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   230
    /*
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   231
     * !!! FIXME: this code needs to deal with fullscreen modes:
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   232
     * !!! FIXME:  reset to default desktop, runModal, reset to current?
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   233
     */
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   234
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   235
    NSAlert* alert = [[NSAlert alloc] init];
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   236
    [alert setAlertStyle:NSCriticalAlertStyle];
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   237
    [alert setMessageText:msg];
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   238
    [alert addButtonWithTitle:@"Retry"];
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   239
    [alert addButtonWithTitle:@"Break"];
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   240
    [alert addButtonWithTitle:@"Abort"];
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   241
    [alert addButtonWithTitle:@"Ignore"];
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   242
    [alert addButtonWithTitle:@"Always Ignore"];
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   243
    const NSInteger clicked = [alert runModal];
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   244
    [pool release];
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   245
    return (SDL_assert_state) (clicked - NSAlertFirstButtonReturn);
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   246
}
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   247
1931
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/* vim: set ts=4 sw=4 expandtab: */