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"

#include "SDL_cocoavideo.h"

/*

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

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

GetDisplayMode(CFDictionaryRef moderef, SDL_DisplayMode *mode)

{

SDL_DisplayModeData *data;

CFNumberRef number;

long width, height, bpp, refreshRate;

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

if (!data) {

return SDL_FALSE;

}

data->moderef = moderef;

number = CFDictionaryGetValue(moderef, kCGDisplayWidth);

CFNumberGetValue(number, kCFNumberLongType, &width);

number = CFDictionaryGetValue(moderef, kCGDisplayHeight);

CFNumberGetValue(number, kCFNumberLongType, &height);

number = CFDictionaryGetValue(moderef, kCGDisplayBitsPerPixel);

CFNumberGetValue(number, kCFNumberLongType, &bpp);

number = CFDictionaryGetValue(moderef, kCGDisplayRefreshRate);

CFNumberGetValue(number, kCFNumberLongType, &refreshRate);

switch (bpp) {

case 8:

/* We don't support palettized modes now */

return SDL_FALSE;

break;

case 32:

break;

}

mode->w = width;

mode->h = height;

mode->refresh_rate = refreshRate;

mode->driverdata = data;

return SDL_TRUE;

}

void

Cocoa_InitModes(_THIS)

{

CGDisplayErr result;

CGDirectDisplayID *displays;

CGDisplayCount numDisplays;

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;

CFDictionaryRef moderef;

if (pass == 0) {

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

continue;

}

} else {

if (CGDisplayIsMain(displays[i])) {

continue;

}

}

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

continue;

}

moderef = CGDisplayCurrentMode(displays[i]);

if (!moderef) {

continue;

}

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

if (!displaydata) {

continue;

}

displaydata->display = displays[i];

SDL_zero(display);

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

SDL_free(displaydata);

continue;

}

display.desktop_mode = mode;

display.current_mode = mode;

display.driverdata = displaydata;

SDL_AddVideoDisplay(&display);

}

}

}

int

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

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;

}

static void

AddDisplayMode(const void *moderef, void *context)

{

SDL_DisplayMode mode;

}

void

CFArrayRef modes;

CFRange range;

modes = CGDisplayAvailableModes(data->display);

if (!modes) {

return;

}

range.location = 0;

range.length = CFArrayGetCount(modes);

}

int

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 */

CGDisplaySwitchToMode(displaydata->display, data->moderef);

if (CGDisplayIsMain(displaydata->display)) {

CGReleaseAllDisplays();

} else {

CGDisplayRelease(displaydata->display);

}

if (CGDisplayIsMain(displaydata->display)) {

ShowMenuBar();

}

} else {

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 */

result = CGDisplaySwitchToMode(displaydata->display, data->moderef);

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) {

}

}

}

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