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/*************************************************************************/
/* display_layer.mm */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#import "display_layer.h"
#include "core/os/keyboard.h"
#include "core/project_settings.h"
#include "display_server_iphone.h"
#include "main/main.h"
#include "os_iphone.h"
#include "servers/audio_server.h"
#import <AudioToolbox/AudioServices.h>
#import <GameController/GameController.h>
#import <OpenGLES/EAGL.h>
#import <OpenGLES/ES1/gl.h>
#import <OpenGLES/ES1/glext.h>
#import <QuartzCore/QuartzCore.h>
#import <UIKit/UIKit.h>
@implementation GodotMetalLayer
- (void)initializeDisplayLayer {
#if defined(TARGET_OS_SIMULATOR) && TARGET_OS_SIMULATOR
if (@available(iOS 13, *)) {
// Simulator supports Metal since iOS 13
} else {
NSLog(@"iOS Simulator prior to iOS 13 does not support Metal rendering.");
}
#endif
}
- (void)layoutDisplayLayer {
}
- (void)renderDisplayLayer {
}
@end
@implementation GodotOpenGLLayer {
// The pixel dimensions of the backbuffer
GLint backingWidth;
GLint backingHeight;
EAGLContext *context;
GLuint viewRenderbuffer, viewFramebuffer;
GLuint depthRenderbuffer;
}
- (void)initializeDisplayLayer {
// Get our backing layer
// Configure it so that it is opaque, does not retain the contents of the backbuffer when displayed, and uses RGBA8888 color.
self.opaque = YES;
self.drawableProperties = [NSDictionary
dictionaryWithObjectsAndKeys:[NSNumber numberWithBool:FALSE],
kEAGLDrawablePropertyRetainedBacking,
kEAGLColorFormatRGBA8,
kEAGLDrawablePropertyColorFormat,
nil];
// FIXME: Add Vulkan support via MoltenVK. Add fallback code back?
// Create GL ES 2 context
if (GLOBAL_GET("rendering/quality/driver/driver_name") == "GLES2") {
context = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES2];
NSLog(@"Setting up an OpenGL ES 2.0 context.");
if (!context) {
NSLog(@"Failed to create OpenGL ES 2.0 context!");
return;
}
}
if (![EAGLContext setCurrentContext:context]) {
NSLog(@"Failed to set EAGLContext!");
return;
}
if (![self createFramebuffer]) {
NSLog(@"Failed to create frame buffer!");
return;
}
}
- (void)layoutDisplayLayer {
[EAGLContext setCurrentContext:context];
[self destroyFramebuffer];
[self createFramebuffer];
}
- (void)renderDisplayLayer {
[EAGLContext setCurrentContext:context];
}
- (void)dealloc {
if ([EAGLContext currentContext] == context) {
[EAGLContext setCurrentContext:nil];
}
if (context) {
context = nil;
}
}
- (BOOL)createFramebuffer {
glGenFramebuffersOES(1, &viewFramebuffer);
glGenRenderbuffersOES(1, &viewRenderbuffer);
glBindFramebufferOES(GL_FRAMEBUFFER_OES, viewFramebuffer);
glBindRenderbufferOES(GL_RENDERBUFFER_OES, viewRenderbuffer);
// This call associates the storage for the current render buffer with the EAGLDrawable (our CAself)
// allowing us to draw into a buffer that will later be rendered to screen wherever the layer is (which corresponds with our view).
[context renderbufferStorage:GL_RENDERBUFFER_OES fromDrawable:(id<EAGLDrawable>)self];
glFramebufferRenderbufferOES(GL_FRAMEBUFFER_OES, GL_COLOR_ATTACHMENT0_OES, GL_RENDERBUFFER_OES, viewRenderbuffer);
glGetRenderbufferParameterivOES(GL_RENDERBUFFER_OES, GL_RENDERBUFFER_WIDTH_OES, &backingWidth);
glGetRenderbufferParameterivOES(GL_RENDERBUFFER_OES, GL_RENDERBUFFER_HEIGHT_OES, &backingHeight);
// For this sample, we also need a depth buffer, so we'll create and attach one via another renderbuffer.
glGenRenderbuffersOES(1, &depthRenderbuffer);
glBindRenderbufferOES(GL_RENDERBUFFER_OES, depthRenderbuffer);
glRenderbufferStorageOES(GL_RENDERBUFFER_OES, GL_DEPTH_COMPONENT16_OES, backingWidth, backingHeight);
glFramebufferRenderbufferOES(GL_FRAMEBUFFER_OES, GL_DEPTH_ATTACHMENT_OES, GL_RENDERBUFFER_OES, depthRenderbuffer);
if (glCheckFramebufferStatusOES(GL_FRAMEBUFFER_OES) != GL_FRAMEBUFFER_COMPLETE_OES) {
NSLog(@"failed to make complete framebuffer object %x", glCheckFramebufferStatusOES(GL_FRAMEBUFFER_OES));
return NO;
}
// if (OS::get_singleton()) {
// OS::VideoMode vm;
// vm.fullscreen = true;
// vm.width = backingWidth;
// vm.height = backingHeight;
// vm.resizable = false;
// OS::get_singleton()->set_video_mode(vm);
// OSIPhone::get_singleton()->set_base_framebuffer(viewFramebuffer);
// };
// gl_view_base_fb = viewFramebuffer;
return YES;
}
// Clean up any buffers we have allocated.
- (void)destroyFramebuffer {
glDeleteFramebuffersOES(1, &viewFramebuffer);
viewFramebuffer = 0;
glDeleteRenderbuffersOES(1, &viewRenderbuffer);
viewRenderbuffer = 0;
if (depthRenderbuffer) {
glDeleteRenderbuffersOES(1, &depthRenderbuffer);
depthRenderbuffer = 0;
}
}
@end
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