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/*************************************************************************/
/* context_gl_osx.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. */
/*************************************************************************/
#include "context_gl_osx.h"
#if defined(OPENGL_ENABLED) || defined(GLES_ENABLED)
void ContextGL_OSX::release_current() {
[NSOpenGLContext clearCurrentContext];
}
void ContextGL_OSX::make_current() {
[context makeCurrentContext];
}
void ContextGL_OSX::update() {
[context update];
}
void ContextGL_OSX::set_opacity(GLint p_opacity) {
[context setValues:&p_opacity forParameter:NSOpenGLCPSurfaceOpacity];
}
int ContextGL_OSX::get_window_width() {
return OS::get_singleton()->get_video_mode().width;
}
int ContextGL_OSX::get_window_height() {
return OS::get_singleton()->get_video_mode().height;
}
void ContextGL_OSX::swap_buffers() {
[context flushBuffer];
}
void ContextGL_OSX::set_use_vsync(bool p_use) {
CGLContextObj ctx = CGLGetCurrentContext();
if (ctx) {
GLint swapInterval = p_use ? 1 : 0;
CGLSetParameter(ctx, kCGLCPSwapInterval, &swapInterval);
use_vsync = p_use;
}
}
bool ContextGL_OSX::is_using_vsync() const {
return use_vsync;
}
Error ContextGL_OSX::initialize() {
framework = CFBundleGetBundleWithIdentifier(CFSTR("com.apple.opengl"));
ERR_FAIL_COND_V(!framework, ERR_CANT_CREATE);
unsigned int attributeCount = 0;
// OS X needs non-zero color size, so set reasonable values
int colorBits = 32;
// Fail if a robustness strategy was requested
#define ADD_ATTR(x) \
{ attributes[attributeCount++] = x; }
#define ADD_ATTR2(x, y) \
{ \
ADD_ATTR(x); \
ADD_ATTR(y); \
}
// Arbitrary array size here
NSOpenGLPixelFormatAttribute attributes[40];
ADD_ATTR(NSOpenGLPFADoubleBuffer);
ADD_ATTR(NSOpenGLPFAClosestPolicy);
if (!opengl_3_context) {
ADD_ATTR2(NSOpenGLPFAOpenGLProfile, NSOpenGLProfileVersionLegacy);
} else {
//we now need OpenGL 3 or better, maybe even change this to 3_3Core ?
ADD_ATTR2(NSOpenGLPFAOpenGLProfile, NSOpenGLProfileVersion3_2Core);
}
ADD_ATTR2(NSOpenGLPFAColorSize, colorBits);
/*
if (fbconfig->alphaBits > 0)
ADD_ATTR2(NSOpenGLPFAAlphaSize, fbconfig->alphaBits);
*/
ADD_ATTR2(NSOpenGLPFADepthSize, 24);
ADD_ATTR2(NSOpenGLPFAStencilSize, 8);
/*
if (fbconfig->stereo)
ADD_ATTR(NSOpenGLPFAStereo);
*/
/*
if (fbconfig->samples > 0) {
ADD_ATTR2(NSOpenGLPFASampleBuffers, 1);
ADD_ATTR2(NSOpenGLPFASamples, fbconfig->samples);
}
*/
// NOTE: All NSOpenGLPixelFormats on the relevant cards support sRGB
// framebuffer, so there's no need (and no way) to request it
ADD_ATTR(0);
#undef ADD_ATTR
#undef ADD_ATTR2
pixelFormat = [[NSOpenGLPixelFormat alloc] initWithAttributes:attributes];
ERR_FAIL_COND_V(pixelFormat == nil, ERR_CANT_CREATE);
context = [[NSOpenGLContext alloc] initWithFormat:pixelFormat shareContext:nil];
ERR_FAIL_COND_V(context == nil, ERR_CANT_CREATE);
[context setView:window_view];
[context makeCurrentContext];
return OK;
}
ContextGL_OSX::ContextGL_OSX(id p_view, bool p_opengl_3_context) {
opengl_3_context = p_opengl_3_context;
window_view = p_view;
use_vsync = false;
}
ContextGL_OSX::~ContextGL_OSX() {}
#endif
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