/*

Simple DirectMedia Layer

Copyright (C) 1997-2011 Sam Lantinga <slouken@libsdl.org>

This software is provided 'as-is', without any express or implied

warranty. In no event will the authors be held liable for any damages

arising from the use of this software.

Permission is granted to anyone to use this software for any purpose,

including commercial applications, and to alter it and redistribute it

freely, subject to the following restrictions:

1. The origin of this software must not be misrepresented; you must not

claim that you wrote the original software. If you use this software

in a product, an acknowledgment in the product documentation would be

appreciated but is not required.

2. Altered source versions must be plainly marked as such, and must not be

misrepresented as being the original software.

3. This notice may not be removed or altered from any source distribution.

*/

#include "SDL_config.h"

#if SDL_VIDEO_DRIVER_COCOA

#include "SDL_cocoavideo.h"

/* !!! FIXME: clean out the pre-10.6 code when it makes sense to do so. */

#define FORCE_OLD_API 0 || (MAC_OS_X_VERSION_MAX_ALLOWED < 1060)

#if FORCE_OLD_API

#undef MAC_OS_X_VERSION_MIN_REQUIRED

#endif

/*

Add methods to get at private members of NSScreen.

Since there is a bug in Apple's screen switching code

that does not update this variable when switching

to fullscreen, we'll set it manually (but only for the

main screen).

*/

@interface NSScreen (NSScreenAccess)

- (void) setFrame:(NSRect)frame;

@end

@implementation NSScreen (NSScreenAccess)

- (void) setFrame:(NSRect)frame;

{

_frame = frame;

}

@end

#endif

static inline BOOL

IS_SNOW_LEOPARD_OR_LATER(_THIS)

{

#if FORCE_OLD_API

return NO;

#else

return ((((SDL_VideoData *) _this->driverdata))->osversion >= 0x1060);

#endif

}

static void

CG_SetError(const char *prefix, CGDisplayErr result)

{

const char *error;

switch (result) {

case kCGErrorFailure:

error = "kCGErrorFailure";

break;

case kCGErrorIllegalArgument:

error = "kCGErrorIllegalArgument";

break;

case kCGErrorInvalidConnection:

error = "kCGErrorInvalidConnection";

break;

case kCGErrorInvalidContext:

error = "kCGErrorInvalidContext";

break;

case kCGErrorCannotComplete:

error = "kCGErrorCannotComplete";

break;

case kCGErrorNameTooLong:

error = "kCGErrorNameTooLong";

break;

case kCGErrorNotImplemented:

error = "kCGErrorNotImplemented";

break;

case kCGErrorRangeCheck:

error = "kCGErrorRangeCheck";

break;

case kCGErrorTypeCheck:

error = "kCGErrorTypeCheck";

break;

case kCGErrorNoCurrentPoint:

error = "kCGErrorNoCurrentPoint";

break;

case kCGErrorInvalidOperation:

error = "kCGErrorInvalidOperation";

break;

case kCGErrorNoneAvailable:

error = "kCGErrorNoneAvailable";

break;

default:

error = "Unknown Error";

break;

}

SDL_SetError("%s: %s", prefix, error);

}

static SDL_bool

{

SDL_DisplayModeData *data;

long width = 0;

long height = 0;

long bpp = 0;

long refreshRate = 0;

data = (SDL_DisplayModeData *) SDL_malloc(sizeof(*data));

if (!data) {

return SDL_FALSE;

}

data->moderef = moderef;

if (IS_SNOW_LEOPARD_OR_LATER(_this)) {

CGDisplayModeRef vidmode = (CGDisplayModeRef) moderef;

CFStringRef fmt = CGDisplayModeCopyPixelEncoding(vidmode);

width = (long) CGDisplayModeGetWidth(vidmode);

height = (long) CGDisplayModeGetHeight(vidmode);

refreshRate = (long) CGDisplayModeGetRefreshRate(vidmode);

if (CFStringCompare(fmt, CFSTR(IO32BitDirectPixels),

kCFCompareCaseInsensitive) == kCFCompareEqualTo) {

bpp = 32;

} else if (CFStringCompare(fmt, CFSTR(IO16BitDirectPixels),

kCFCompareCaseInsensitive) == kCFCompareEqualTo) {

bpp = 16;

} else {

bpp = 0; /* ignore 8-bit and such for now. */

}

CFRelease(fmt);

}

#endif

CFDictionaryRef vidmode = (CFDictionaryRef) moderef;

number = CFDictionaryGetValue(vidmode, kCGDisplayWidth);

CFNumberGetValue(number, kCFNumberLongType, &width);

number = CFDictionaryGetValue(vidmode, kCGDisplayHeight);

CFNumberGetValue(number, kCFNumberLongType, &height);

number = CFDictionaryGetValue(vidmode, kCGDisplayBitsPerPixel);

CFNumberGetValue(number, kCFNumberLongType, &bpp);

number = CFDictionaryGetValue(vidmode, kCGDisplayRefreshRate);

CFNumberGetValue(number, kCFNumberLongType, &refreshRate);

}

#endif

mode->format = SDL_PIXELFORMAT_UNKNOWN;

switch (bpp) {

case 16:

mode->format = SDL_PIXELFORMAT_ARGB1555;

break;

case 32:

mode->format = SDL_PIXELFORMAT_ARGB8888;

break;

case 8: /* We don't support palettized modes now */

default: /* Totally unrecognizable bit depth. */

return SDL_FALSE;

}

mode->w = width;

mode->h = height;

mode->refresh_rate = refreshRate;

mode->driverdata = data;

return SDL_TRUE;

}

static inline void

Cocoa_ReleaseDisplayMode(_THIS, const void *moderef)

{

/* We don't own moderef unless we use the 10.6+ APIs. */

if (IS_SNOW_LEOPARD_OR_LATER(_this)) {

CGDisplayModeRelease((CGDisplayModeRef) moderef); /* NULL is ok */

}

#endif

}

static inline void

Cocoa_ReleaseDisplayModeList(_THIS, CFArrayRef modelist)

{

/* We don't own modelis unless we use the 10.6+ APIs. */

if (IS_SNOW_LEOPARD_OR_LATER(_this)) {

CFRelease(modelist); /* NULL is ok */

}

#endif

}

void

Cocoa_InitModes(_THIS)

{

CGDisplayErr result;

CGDirectDisplayID *displays;

CGDisplayCount numDisplays;

int pass, i;

result = CGGetOnlineDisplayList(0, NULL, &numDisplays);

if (result != kCGErrorSuccess) {

CG_SetError("CGGetOnlineDisplayList()", result);

return;

}

displays = SDL_stack_alloc(CGDirectDisplayID, numDisplays);

result = CGGetOnlineDisplayList(numDisplays, displays, &numDisplays);

if (result != kCGErrorSuccess) {

CG_SetError("CGGetOnlineDisplayList()", result);

SDL_stack_free(displays);

return;

}

/* Pick up the primary display in the first pass, then get the rest */

for (pass = 0; pass < 2; ++pass) {

for (i = 0; i < numDisplays; ++i) {

SDL_VideoDisplay display;

SDL_DisplayData *displaydata;

SDL_DisplayMode mode;

if (pass == 0) {

if (!CGDisplayIsMain(displays[i])) {

continue;

}

} else {

if (CGDisplayIsMain(displays[i])) {

continue;

}

}

if (CGDisplayMirrorsDisplay(displays[i]) != kCGNullDirectDisplay) {

continue;

}

if (IS_SNOW_LEOPARD_OR_LATER(_this)) {

moderef = CGDisplayCopyDisplayMode(displays[i]);

}

#endif

if (!IS_SNOW_LEOPARD_OR_LATER(_this)) {

moderef = CGDisplayCurrentMode(displays[i]);

}

#endif

if (!moderef) {

continue;

}

displaydata = (SDL_DisplayData *) SDL_malloc(sizeof(*displaydata));

if (!displaydata) {

continue;

}

displaydata->display = displays[i];

SDL_zero(display);

if (!GetDisplayMode (_this, moderef, &mode)) {

Cocoa_ReleaseDisplayMode(_this, moderef);

SDL_free(displaydata);

continue;

}

display.desktop_mode = mode;

display.current_mode = mode;

display.driverdata = displaydata;

SDL_AddVideoDisplay(&display);

}

}

SDL_stack_free(displays);

}

int

Cocoa_GetDisplayBounds(_THIS, SDL_VideoDisplay * display, SDL_Rect * rect)

{

SDL_DisplayData *displaydata = (SDL_DisplayData *) display->driverdata;

CGRect cgrect;

cgrect = CGDisplayBounds(displaydata->display);

rect->x = (int)cgrect.origin.x;

rect->y = (int)cgrect.origin.y;

rect->w = (int)cgrect.size.width;

rect->h = (int)cgrect.size.height;

return 0;

}

void

Cocoa_GetDisplayModes(_THIS, SDL_VideoDisplay * display)

SDL_DisplayData *data = (SDL_DisplayData *) display->driverdata;

CFArrayRef modes = NULL;

if (IS_SNOW_LEOPARD_OR_LATER(_this)) {

modes = CGDisplayCopyAllDisplayModes(data->display, NULL);

}

#endif

if (!IS_SNOW_LEOPARD_OR_LATER(_this)) {

modes = CGDisplayAvailableModes(data->display);

}

#endif

if (modes) {

const CFIndex count = CFArrayGetCount(modes);

CFIndex i;

for (i = 0; i < count; i++) {

const void *moderef = CFArrayGetValueAtIndex(modes, i);

SDL_DisplayMode mode;

if (GetDisplayMode(_this, moderef, &mode)) {

if (IS_SNOW_LEOPARD_OR_LATER(_this)) {

CGDisplayModeRetain((CGDisplayModeRef) moderef);

}

#endif

SDL_AddDisplayMode(display, &mode);

}

}

}

}

static CGError

Cocoa_SwitchMode(_THIS, CGDirectDisplayID display, const void *mode)

if (IS_SNOW_LEOPARD_OR_LATER(_this)) {

return CGDisplaySetDisplayMode(display, (CGDisplayModeRef) mode, NULL);

}

#endif

if (!IS_SNOW_LEOPARD_OR_LATER(_this)) {

return CGDisplaySwitchToMode(display, (CFDictionaryRef) mode);

#endif

return kCGErrorFailure;

}

int

Cocoa_SetDisplayMode(_THIS, SDL_VideoDisplay * display, SDL_DisplayMode * mode)

{

SDL_DisplayData *displaydata = (SDL_DisplayData *) display->driverdata;

SDL_DisplayModeData *data = (SDL_DisplayModeData *) mode->driverdata;

CGDisplayFadeReservationToken fade_token = kCGDisplayFadeReservationInvalidToken;

CGError result;

/* Fade to black to hide resolution-switching flicker */

if (CGAcquireDisplayFadeReservation(5, &fade_token) == kCGErrorSuccess) {

CGDisplayFade(fade_token, 0.3, kCGDisplayBlendNormal, kCGDisplayBlendSolidColor, 0.0, 0.0, 0.0, TRUE);

}

if (data == display->desktop_mode.driverdata) {

/* Restoring desktop mode */

if (CGDisplayIsMain(displaydata->display)) {

CGReleaseAllDisplays();

} else {

CGDisplayRelease(displaydata->display);

}

if (CGDisplayIsMain(displaydata->display)) {

ShowMenuBar();

}

} else {

/* Put up the blanking window (a window above all other windows) */

if (CGDisplayIsMain(displaydata->display)) {

/* If we don't capture all displays, Cocoa tries to rearrange windows... *sigh* */

result = CGCaptureAllDisplays();

} else {

result = CGDisplayCapture(displaydata->display);

}

if (result != kCGErrorSuccess) {

CG_SetError("CGDisplayCapture()", result);

goto ERR_NO_CAPTURE;

}

/* Do the physical switch */

if (result != kCGErrorSuccess) {

CG_SetError("CGDisplaySwitchToMode()", result);

goto ERR_NO_SWITCH;

}

/* Hide the menu bar so it doesn't intercept events */

if (CGDisplayIsMain(displaydata->display)) {

HideMenuBar();

}

}

/* Fade in again (asynchronously) */

if (fade_token != kCGDisplayFadeReservationInvalidToken) {

CGDisplayFade(fade_token, 0.5, kCGDisplayBlendSolidColor, kCGDisplayBlendNormal, 0.0, 0.0, 0.0, FALSE);

CGReleaseDisplayFadeReservation(fade_token);

}

return 0;

/* Since the blanking window covers *all* windows (even force quit) correct recovery is crucial */

ERR_NO_SWITCH:

CGDisplayRelease(displaydata->display);

ERR_NO_CAPTURE:

if (fade_token != kCGDisplayFadeReservationInvalidToken) {

CGDisplayFade (fade_token, 0.5, kCGDisplayBlendSolidColor, kCGDisplayBlendNormal, 0.0, 0.0, 0.0, FALSE);

CGReleaseDisplayFadeReservation(fade_token);

}

return -1;

}

void

Cocoa_QuitModes(_THIS)

{

for (i = 0; i < _this->num_displays; ++i) {

SDL_VideoDisplay *display = &_this->displays[i];

if (display->current_mode.driverdata != display->desktop_mode.driverdata) {

Cocoa_SetDisplayMode(_this, display, &display->desktop_mode);

}

mode = (SDL_DisplayModeData *) display->desktop_mode.driverdata;

Cocoa_ReleaseDisplayMode(_this, mode->moderef);

for (j = 0; j < display->num_display_modes; j++) {

mode = (SDL_DisplayModeData*) display->display_modes[j].driverdata;

Cocoa_ReleaseDisplayMode(_this, mode->moderef);

}

}

ShowMenuBar();

}

#endif /* SDL_VIDEO_DRIVER_COCOA */