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SDL_cocoavideo.m
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/*
SDL - Simple DirectMedia Layer
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Copyright (C) 1997-2011 Sam Lantinga
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This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#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 */
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));
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} else {
data = NULL;
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if (!data) {
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SDL_OutOfMemory();
if (device) {
SDL_free(device);
}
return NULL;
}
device->driverdata = data;
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/* Find out what version of Mac OS X we're running */
Gestalt(gestaltSystemVersion, &data->osversion);
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/* Set the function pointers */
device->VideoInit = Cocoa_VideoInit;
device->VideoQuit = Cocoa_VideoQuit;
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device->GetDisplayBounds = Cocoa_GetDisplayBounds;
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device->GetDisplayModes = Cocoa_GetDisplayModes;
device->SetDisplayMode = Cocoa_SetDisplayMode;
device->PumpEvents = Cocoa_PumpEvents;
device->CreateWindow = Cocoa_CreateWindow;
device->CreateWindowFrom = Cocoa_CreateWindowFrom;
device->SetWindowTitle = Cocoa_SetWindowTitle;
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device->SetWindowIcon = Cocoa_SetWindowIcon;
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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;
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device->SetWindowFullscreen = Cocoa_SetWindowFullscreen;
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device->SetWindowGrab = Cocoa_SetWindowGrab;
device->DestroyWindow = Cocoa_DestroyWindow;
device->GetWindowWMInfo = Cocoa_GetWindowWMInfo;
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device->shape_driver.CreateShaper = Cocoa_CreateShaper;
device->shape_driver.SetWindowShape = Cocoa_SetWindowShape;
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;
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;
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
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device->StartTextInput = Cocoa_StartTextInput;
device->StopTextInput = Cocoa_StopTextInput;
device->SetTextInputRect = Cocoa_SetTextInputRect;
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device->SetClipboardText = Cocoa_SetClipboardText;
device->GetClipboardText = Cocoa_GetClipboardText;
device->HasClipboardText = Cocoa_HasClipboardText;
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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);
}
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/* 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;
}
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/*
* 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];
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NSLog(@"%s", msg);
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/*
* !!! 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);
}
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/* vim: set ts=4 sw=4 expandtab: */