/*

*/

#include "SDL_config.h"

#include "SDL_endian.h"

#include "SDL_cocoavideo.h"

#include "SDL_cocoashape.h"

#include "SDL_assert.h"

/* Initialization/Query functions */

static int Cocoa_VideoInit(_THIS);

static void Cocoa_VideoQuit(_THIS);

/* Cocoa driver bootstrap functions */

static int

Cocoa_Available(void)

{

    return (1);

}

static void

Cocoa_DeleteDevice(SDL_VideoDevice * device)

{

    SDL_free(device->driverdata);

    SDL_free(device);

}

static SDL_VideoDevice *

Cocoa_CreateDevice(int devindex)

{

    SDL_VideoDevice *device;

    SDL_VideoData *data;

    Cocoa_RegisterApp();

    /* Initialize all variables that we clean on shutdown */

    device = (SDL_VideoDevice *) SDL_calloc(1, sizeof(SDL_VideoDevice));

    if (device) {

        data = (struct SDL_VideoData *) SDL_calloc(1, sizeof(SDL_VideoData));

    } else {

        data = NULL;

    }

    if (!data) {

        SDL_OutOfMemory();

        if (device) {

            SDL_free(device);

        }

        return NULL;

    }

    device->driverdata = data;

    /* Find out what version of Mac OS X we're running */

    Gestalt(gestaltSystemVersion, &data->osversion);

    /* Set the function pointers */

    device->VideoInit = Cocoa_VideoInit;

    device->VideoQuit = Cocoa_VideoQuit;

    device->GetDisplayBounds = Cocoa_GetDisplayBounds;

    device->GetDisplayModes = Cocoa_GetDisplayModes;

    device->SetDisplayMode = Cocoa_SetDisplayMode;

    device->PumpEvents = Cocoa_PumpEvents;

    device->CreateWindow = Cocoa_CreateWindow;

    device->CreateWindowFrom = Cocoa_CreateWindowFrom;

    device->SetWindowTitle = Cocoa_SetWindowTitle;

    device->SetWindowIcon = Cocoa_SetWindowIcon;

    device->SetWindowPosition = Cocoa_SetWindowPosition;

    device->SetWindowSize = Cocoa_SetWindowSize;

    device->ShowWindow = Cocoa_ShowWindow;

    device->HideWindow = Cocoa_HideWindow;

    device->RaiseWindow = Cocoa_RaiseWindow;

    device->MaximizeWindow = Cocoa_MaximizeWindow;

    device->MinimizeWindow = Cocoa_MinimizeWindow;

    device->RestoreWindow = Cocoa_RestoreWindow;

    device->SetWindowFullscreen = Cocoa_SetWindowFullscreen;

    device->SetWindowGammaRamp = Cocoa_SetWindowGammaRamp;

    device->GetWindowGammaRamp = Cocoa_GetWindowGammaRamp;

    device->SetWindowGrab = Cocoa_SetWindowGrab;

    device->DestroyWindow = Cocoa_DestroyWindow;

    device->GetWindowWMInfo = Cocoa_GetWindowWMInfo;

    device->shape_driver.CreateShaper = Cocoa_CreateShaper;

    device->shape_driver.SetWindowShape = Cocoa_SetWindowShape;

    device->shape_driver.ResizeWindowShape = Cocoa_ResizeWindowShape;

#if SDL_VIDEO_OPENGL_CGL

    device->GL_LoadLibrary = Cocoa_GL_LoadLibrary;

    device->GL_GetProcAddress = Cocoa_GL_GetProcAddress;

    device->GL_UnloadLibrary = Cocoa_GL_UnloadLibrary;

    device->GL_CreateContext = Cocoa_GL_CreateContext;

    device->GL_MakeCurrent = Cocoa_GL_MakeCurrent;

    device->GL_SetSwapInterval = Cocoa_GL_SetSwapInterval;

    device->GL_GetSwapInterval = Cocoa_GL_GetSwapInterval;

    device->GL_SwapWindow = Cocoa_GL_SwapWindow;

    device->GL_DeleteContext = Cocoa_GL_DeleteContext;

#endif

    device->StartTextInput = Cocoa_StartTextInput;

    device->StopTextInput = Cocoa_StopTextInput;

    device->SetTextInputRect = Cocoa_SetTextInputRect;

    device->SetClipboardText = Cocoa_SetClipboardText;

    device->GetClipboardText = Cocoa_GetClipboardText;

    device->HasClipboardText = Cocoa_HasClipboardText;

    device->free = Cocoa_DeleteDevice;

    return device;

}

VideoBootStrap COCOA_bootstrap = {

    "cocoa", "SDL Cocoa video driver",

    Cocoa_Available, Cocoa_CreateDevice

};

int

Cocoa_VideoInit(_THIS)

{

    Cocoa_InitModes(_this);

    Cocoa_InitKeyboard(_this);

    Cocoa_InitMouse(_this);

    return 0;

}

void

Cocoa_VideoQuit(_THIS)

{

    Cocoa_QuitModes(_this);

    Cocoa_QuitKeyboard(_this);

    Cocoa_QuitMouse(_this);

}

/* This function assumes that it's called from within an autorelease pool */

NSImage *

Cocoa_CreateImage(SDL_Surface * surface)

{

    SDL_Surface *converted;

    NSBitmapImageRep *imgrep;

    Uint8 *pixels;

    int i;

    NSImage *img;

    converted = SDL_ConvertSurfaceFormat(surface, 

#if SDL_BYTEORDER == SDL_BIG_ENDIAN

                                         SDL_PIXELFORMAT_RGBA8888,

#else

                                         SDL_PIXELFORMAT_ABGR8888,

#endif

                                         0);

    if (!converted) {

        return nil;

    }

    imgrep = [[[NSBitmapImageRep alloc] initWithBitmapDataPlanes: NULL

                    pixelsWide: converted->w

                    pixelsHigh: converted->h

                    bitsPerSample: 8

                    samplesPerPixel: 4

                    hasAlpha: YES

                    isPlanar: NO

                    colorSpaceName: NSDeviceRGBColorSpace

                    bytesPerRow: converted->pitch

                    bitsPerPixel: converted->format->BitsPerPixel] autorelease];

    if (imgrep == nil) {

        SDL_FreeSurface(converted);

        return nil;

    }

    /* Copy the pixels */

    pixels = [imgrep bitmapData];

    SDL_memcpy(pixels, converted->pixels, converted->h * converted->pitch);

    SDL_FreeSurface(converted);

    /* Premultiply the alpha channel */

    for (i = (converted->h * converted->w); i--; ) {

        Uint8 alpha = pixels[3];

        pixels[0] = (Uint8)(((Uint16)pixels[0] * alpha) / 255);

        pixels[1] = (Uint8)(((Uint16)pixels[1] * alpha) / 255);

        pixels[2] = (Uint8)(((Uint16)pixels[2] * alpha) / 255);

        pixels += 4;

    }

    img = [[[NSImage alloc] initWithSize: NSMakeSize(surface->w, surface->h)] autorelease];

    if (img != nil) {

        [img addRepresentation: imgrep];

    }

    return img;

}

/*

 * Mac OS X assertion support.

 *

 * This doesn't really have aything to do with the interfaces of the SDL video

 *  subsystem, but we need to stuff this into an Objective-C source code file.

 */

SDL_assert_state

SDL_PromptAssertion_cocoa(const SDL_assert_data *data)

{

    NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];

    NSString *msg = [NSString stringWithFormat:

            @"Assertion failure at %s (%s:%d), triggered %u time%s:\n  '%s'",

                data->function, data->filename, data->linenum,

                data->trigger_count, (data->trigger_count == 1) ? "" : "s",

                data->condition];

    NSLog(@"%s", msg);

    /*

     * !!! FIXME: this code needs to deal with fullscreen modes:

     * !!! FIXME:  reset to default desktop, runModal, reset to current?

     */

    NSAlert* alert = [[NSAlert alloc] init];

    [alert setAlertStyle:NSCriticalAlertStyle];

    [alert setMessageText:msg];

    [alert addButtonWithTitle:@"Retry"];

    [alert addButtonWithTitle:@"Break"];

    [alert addButtonWithTitle:@"Abort"];

    [alert addButtonWithTitle:@"Ignore"];

    [alert addButtonWithTitle:@"Always Ignore"];

    const NSInteger clicked = [alert runModal];

    [pool release];

    return (SDL_assert_state) (clicked - NSAlertFirstButtonReturn);

}

/* vim: set ts=4 sw=4 expandtab: */