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1 | // Created on: 2012-11-12 |
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2 | // Created by: Kirill Gavrilov |
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3 | // Copyright (c) 2012-2014 OPEN CASCADE SAS |
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4 | // |
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5 | // This file is part of Open CASCADE Technology software library. |
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6 | // |
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7 | // This library is free software; you can redistribute it and/or modify it under |
8 | // the terms of the GNU Lesser General Public License version 2.1 as published |
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9 | // by the Free Software Foundation, with special exception defined in the file |
10 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
11 | // distribution for complete text of the license and disclaimer of any warranty. |
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12 | // |
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13 | // Alternatively, this file may be used under the terms of Open CASCADE |
14 | // commercial license or contractual agreement. |
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15 | |
16 | #if defined(__APPLE__) && !defined(MACOSX_USE_GLX) |
17 | |
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18 | #ifndef GL_GLEXT_LEGACY |
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19 | #define GL_GLEXT_LEGACY // To prevent inclusion of system glext.h on Mac OS X 10.6.8 |
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20 | #endif |
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21 | |
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22 | // macOS 10.4 deprecated OpenGL framework - suppress useless warnings |
23 | #define GL_SILENCE_DEPRECATION |
24 | |
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25 | #import <TargetConditionals.h> |
26 | |
27 | #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE |
28 | #import <UIKit/UIKit.h> |
29 | #else |
30 | #import <Cocoa/Cocoa.h> |
31 | |
32 | #if !defined(MAC_OS_X_VERSION_10_7) || (MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_7) |
33 | @interface NSView (LionAPI) |
34 | - (NSSize )convertSizeToBacking: (NSSize )theSize; |
35 | @end |
36 | #endif |
37 | |
38 | #endif |
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39 | |
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40 | #include <OpenGl_Window.hxx> |
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41 | #include <OpenGl_FrameBuffer.hxx> |
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42 | |
43 | #include <OpenGl_Context.hxx> |
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44 | #include <Aspect_GraphicDeviceDefinitionError.hxx> |
45 | #include <Cocoa_LocalPool.hxx> |
46 | #include <TCollection_AsciiString.hxx> |
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47 | #include <TCollection_ExtendedString.hxx> |
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48 | |
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49 | #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE |
50 | // |
51 | #else |
52 | #include <OpenGL/CGLRenderers.h> |
53 | #endif |
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54 | |
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55 | // ======================================================================= |
56 | // function : OpenGl_Window |
57 | // purpose : |
58 | // ======================================================================= |
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59 | OpenGl_Window::OpenGl_Window (const Handle(OpenGl_GraphicDriver)& theDriver, |
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60 | const Handle(Aspect_Window)& thePlatformWindow, |
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61 | Aspect_RenderingContext theGContext, |
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62 | const Handle(OpenGl_Caps)& theCaps, |
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63 | const Handle(OpenGl_Context)& theShareCtx) |
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64 | : myGlContext (new OpenGl_Context (theCaps)), |
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65 | myOwnGContext (theGContext == 0), |
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66 | myPlatformWindow (thePlatformWindow), |
67 | #if defined(__APPLE__) && defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE |
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68 | myUIView (NULL), |
69 | #endif |
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70 | mySwapInterval (theCaps->swapInterval) |
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71 | { |
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72 | (void )theDriver; |
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73 | myPlatformWindow->Size (myWidth, myHeight); |
74 | |
75 | #if defined(__APPLE__) |
76 | myWidthPt = myWidth; |
77 | myHeightPt = myHeight; |
78 | #endif |
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79 | |
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80 | #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE |
81 | EAGLContext* aGLContext = theGContext; |
82 | if (aGLContext == NULL) |
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83 | { |
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84 | void* aViewPtr = (void* )myPlatformWindow->NativeHandle(); |
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85 | |
86 | myUIView = (__bridge UIView* )aViewPtr; |
87 | CAEAGLLayer* anEaglLayer = (CAEAGLLayer* )myUIView.layer; |
88 | anEaglLayer.opaque = TRUE; |
89 | anEaglLayer.drawableProperties = [NSDictionary dictionaryWithObjectsAndKeys: |
90 | [NSNumber numberWithBool: FALSE], kEAGLDrawablePropertyRetainedBacking, |
91 | kEAGLColorFormatRGBA8, kEAGLDrawablePropertyColorFormat, |
92 | NULL]; |
93 | |
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94 | aGLContext = [[EAGLContext alloc] initWithAPI: kEAGLRenderingAPIOpenGLES3]; |
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95 | if (aGLContext == NULL |
96 | || ![EAGLContext setCurrentContext: aGLContext]) |
97 | { |
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98 | aGLContext = [[EAGLContext alloc] initWithAPI: kEAGLRenderingAPIOpenGLES2]; |
99 | |
100 | if (aGLContext == NULL |
101 | || ![EAGLContext setCurrentContext: aGLContext]) |
102 | { |
103 | TCollection_AsciiString aMsg ("OpenGl_Window::CreateWindow: EAGLContext creation failed"); |
104 | throw Aspect_GraphicDeviceDefinitionError(aMsg.ToCString()); |
105 | return; |
106 | } |
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107 | } |
108 | |
109 | myGlContext->Init (aGLContext, Standard_False); |
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110 | } |
111 | else |
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112 | { |
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113 | if (![EAGLContext setCurrentContext: aGLContext]) |
114 | { |
115 | TCollection_AsciiString aMsg ("OpenGl_Window::CreateWindow: EAGLContext can not be assigned"); |
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116 | throw Aspect_GraphicDeviceDefinitionError(aMsg.ToCString()); |
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117 | return; |
118 | } |
119 | |
120 | myGlContext->Init (aGLContext, Standard_False); |
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121 | } |
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122 | #else |
123 | |
124 | Cocoa_LocalPool aLocalPool; |
125 | |
126 | // all GL context within one OpenGl_GraphicDriver should be shared! |
127 | NSOpenGLContext* aGLCtxShare = theShareCtx.IsNull() ? NULL : theShareCtx->myGContext; |
128 | NSOpenGLContext* aGLContext = theGContext; |
129 | bool isCore = false; |
130 | if (aGLContext == NULL) |
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131 | { |
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132 | NSOpenGLPixelFormatAttribute anAttribs[32] = {}; |
133 | Standard_Integer aLastAttrib = 0; |
134 | //anAttribs[aLastAttrib++] = NSOpenGLPFAColorSize; anAttribs[aLastAttrib++] = 32, |
135 | anAttribs[aLastAttrib++] = NSOpenGLPFADepthSize; anAttribs[aLastAttrib++] = 24; |
136 | anAttribs[aLastAttrib++] = NSOpenGLPFAStencilSize; anAttribs[aLastAttrib++] = 8; |
137 | anAttribs[aLastAttrib++] = NSOpenGLPFADoubleBuffer; |
138 | if (theCaps->contextNoAccel) |
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139 | { |
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140 | anAttribs[aLastAttrib++] = NSOpenGLPFARendererID; |
141 | anAttribs[aLastAttrib++] = (NSOpenGLPixelFormatAttribute )kCGLRendererGenericFloatID; |
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142 | } |
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143 | else |
144 | { |
145 | anAttribs[aLastAttrib++] = NSOpenGLPFAAccelerated; |
146 | } |
147 | anAttribs[aLastAttrib] = 0; |
148 | const Standard_Integer aLastMainAttrib = aLastAttrib; |
149 | Standard_Integer aTryCore = 0; |
150 | Standard_Integer aTryStereo = 0; |
151 | for (aTryCore = 1; aTryCore >= 0; --aTryCore) |
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152 | { |
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153 | aLastAttrib = aLastMainAttrib; |
154 | if (aTryCore == 1) |
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155 | { |
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156 | if (theCaps->contextCompatible) |
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157 | { |
158 | continue; |
159 | } |
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160 | |
161 | // supported since OS X 10.7+ |
162 | anAttribs[aLastAttrib++] = 99; // NSOpenGLPFAOpenGLProfile |
163 | anAttribs[aLastAttrib++] = 0x3200; // NSOpenGLProfileVersion3_2Core |
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164 | } |
165 | |
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166 | for (aTryStereo = 1; aTryStereo >= 0; --aTryStereo) |
167 | { |
168 | if (aTryStereo == 1) |
169 | { |
170 | if (!theCaps->contextStereo) |
171 | { |
172 | continue; |
173 | } |
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174 | |
175 | // deprecated since macOS 10.12 without replacement |
176 | Standard_DISABLE_DEPRECATION_WARNINGS |
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177 | anAttribs[aLastAttrib++] = NSOpenGLPFAStereo; |
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178 | Standard_ENABLE_DEPRECATION_WARNINGS |
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179 | } |
180 | |
181 | anAttribs[aLastAttrib] = 0; |
182 | |
183 | NSOpenGLPixelFormat* aGLFormat = [[[NSOpenGLPixelFormat alloc] initWithAttributes: anAttribs] autorelease]; |
184 | aGLContext = [[NSOpenGLContext alloc] initWithFormat: aGLFormat |
185 | shareContext: aGLCtxShare]; |
186 | if (aGLContext != NULL) |
187 | { |
188 | break; |
189 | } |
190 | } |
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191 | |
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192 | if (aGLContext != NULL) |
193 | { |
194 | break; |
195 | } |
196 | } |
197 | |
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198 | if (aGLContext == NULL) |
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199 | { |
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200 | TCollection_AsciiString aMsg ("OpenGl_Window::CreateWindow: NSOpenGLContext creation failed"); |
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201 | throw Aspect_GraphicDeviceDefinitionError(aMsg.ToCString()); |
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202 | return; |
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203 | } |
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204 | |
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205 | if (aTryStereo == 0 |
206 | && theCaps->contextStereo) |
207 | { |
208 | TCollection_ExtendedString aMsg("OpenGl_Window::CreateWindow: QuadBuffer is unavailable!"); |
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209 | myGlContext->PushMessage (GL_DEBUG_SOURCE_APPLICATION, GL_DEBUG_TYPE_OTHER, 0, GL_DEBUG_SEVERITY_LOW, aMsg); |
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210 | } |
211 | if (aTryCore == 0 |
212 | && !theCaps->contextCompatible) |
213 | { |
214 | TCollection_ExtendedString aMsg("OpenGl_Window::CreateWindow: core profile creation failed."); |
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215 | myGlContext->PushMessage (GL_DEBUG_SOURCE_APPLICATION, GL_DEBUG_TYPE_PORTABILITY, 0, GL_DEBUG_SEVERITY_LOW, aMsg); |
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216 | } |
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217 | |
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218 | NSView* aView = (NSView* )myPlatformWindow->NativeHandle(); |
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219 | [aGLContext setView: aView]; |
220 | isCore = (aTryCore == 1); |
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221 | } |
222 | |
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223 | myGlContext->Init (aGLContext, isCore); |
224 | #endif |
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225 | |
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226 | myGlContext->Share (theShareCtx); |
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227 | myGlContext->SetSwapInterval (mySwapInterval); |
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228 | Init(); |
229 | } |
230 | |
231 | // ======================================================================= |
232 | // function : ~OpenGl_Window |
233 | // purpose : |
234 | // ======================================================================= |
235 | OpenGl_Window::~OpenGl_Window() |
236 | { |
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237 | if (!myOwnGContext |
238 | || myGlContext.IsNull()) |
239 | { |
240 | myGlContext.Nullify(); |
241 | return; |
242 | } |
243 | |
244 | #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE |
245 | myGlContext.Nullify(); |
246 | [EAGLContext setCurrentContext: NULL]; |
247 | myUIView = NULL; |
248 | #else |
249 | NSOpenGLContext* aGLCtx = myGlContext->myGContext; |
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250 | myGlContext.Nullify(); |
251 | |
252 | [NSOpenGLContext clearCurrentContext]; |
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253 | [aGLCtx clearDrawable]; |
254 | [aGLCtx release]; |
255 | #endif |
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256 | } |
257 | |
258 | // ======================================================================= |
259 | // function : Resize |
260 | // purpose : call_subr_resize |
261 | // ======================================================================= |
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262 | void OpenGl_Window::Resize() |
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263 | { |
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264 | // If the size is not changed - do nothing |
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265 | Standard_Integer aWidthPt = 0; |
266 | Standard_Integer aHeightPt = 0; |
267 | myPlatformWindow->Size (aWidthPt, aHeightPt); |
268 | if (myWidthPt == aWidthPt |
269 | && myHeightPt == aHeightPt) |
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270 | { |
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271 | #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE |
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272 | return; |
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273 | #else |
274 | // check backing store change (moving to another screen) |
275 | NSOpenGLContext* aGLCtx = myGlContext->myGContext; |
276 | NSView* aView = [aGLCtx view]; |
277 | if (![aView respondsToSelector: @selector(convertSizeToBacking:)]) |
278 | { |
279 | return; |
280 | } |
281 | |
282 | NSRect aBounds = [aView bounds]; |
283 | NSSize aRes = [aView convertSizeToBacking: aBounds.size]; |
284 | if (myWidth == Standard_Integer(aRes.width) |
285 | && myHeight == Standard_Integer(aRes.height)) |
286 | { |
287 | return; |
288 | } |
289 | #endif |
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290 | } |
291 | |
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292 | myWidthPt = aWidthPt; |
293 | myHeightPt = aHeightPt; |
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294 | |
295 | Init(); |
296 | } |
297 | |
298 | // ======================================================================= |
299 | // function : Init |
300 | // purpose : |
301 | // ======================================================================= |
302 | void OpenGl_Window::Init() |
303 | { |
304 | if (!Activate()) |
305 | { |
306 | return; |
307 | } |
308 | |
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309 | #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE |
310 | Handle(OpenGl_FrameBuffer) aDefFbo = myGlContext->SetDefaultFrameBuffer (NULL); |
311 | if (!aDefFbo.IsNull()) |
312 | { |
313 | aDefFbo->Release (myGlContext.operator->()); |
314 | } |
315 | else |
316 | { |
317 | aDefFbo = new OpenGl_FrameBuffer(); |
318 | } |
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319 | |
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320 | if (myOwnGContext) |
321 | { |
322 | EAGLContext* aGLCtx = myGlContext->myGContext; |
323 | CAEAGLLayer* anEaglLayer = (CAEAGLLayer* )myUIView.layer; |
324 | GLuint aWinRBColor = 0; |
325 | ::glGenRenderbuffers (1, &aWinRBColor); |
326 | ::glBindRenderbuffer (GL_RENDERBUFFER, aWinRBColor); |
327 | [aGLCtx renderbufferStorage: GL_RENDERBUFFER fromDrawable: anEaglLayer]; |
328 | ::glGetRenderbufferParameteriv (GL_RENDERBUFFER, GL_RENDERBUFFER_WIDTH, &myWidth); |
329 | ::glGetRenderbufferParameteriv (GL_RENDERBUFFER, GL_RENDERBUFFER_HEIGHT, &myHeight); |
330 | ::glBindRenderbuffer (GL_RENDERBUFFER, 0); |
331 | |
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332 | if (!aDefFbo->InitWithRB (myGlContext, myWidth, myHeight, GL_RGBA8, GL_DEPTH24_STENCIL8, aWinRBColor)) |
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333 | { |
334 | TCollection_AsciiString aMsg ("OpenGl_Window::CreateWindow: default FBO creation failed"); |
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335 | throw Aspect_GraphicDeviceDefinitionError(aMsg.ToCString()); |
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336 | return; |
337 | } |
338 | } |
339 | else |
340 | { |
341 | if (!aDefFbo->InitWrapper (myGlContext)) |
342 | { |
343 | TCollection_AsciiString aMsg ("OpenGl_Window::CreateWindow: default FBO wrapper creation failed"); |
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344 | throw Aspect_GraphicDeviceDefinitionError(aMsg.ToCString()); |
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345 | return; |
346 | } |
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347 | |
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348 | myWidth = aDefFbo->GetVPSizeX(); |
349 | myHeight = aDefFbo->GetVPSizeY(); |
350 | } |
351 | myGlContext->SetDefaultFrameBuffer (aDefFbo); |
352 | aDefFbo->BindBuffer (myGlContext); |
353 | aDefFbo.Nullify(); |
354 | #else |
355 | NSOpenGLContext* aGLCtx = myGlContext->myGContext; |
356 | NSView* aView = [aGLCtx view]; |
357 | NSRect aBounds = [aView bounds]; |
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358 | |
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359 | // we should call this method each time when window is resized |
360 | [aGLCtx update]; |
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361 | |
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362 | if ([aView respondsToSelector: @selector(convertSizeToBacking:)]) |
363 | { |
364 | NSSize aRes = [aView convertSizeToBacking: aBounds.size]; |
365 | myWidth = Standard_Integer(aRes.width); |
366 | myHeight = Standard_Integer(aRes.height); |
367 | } |
368 | else |
369 | { |
370 | myWidth = Standard_Integer(aBounds.size.width); |
371 | myHeight = Standard_Integer(aBounds.size.height); |
372 | } |
373 | myWidthPt = Standard_Integer(aBounds.size.width); |
374 | myHeightPt = Standard_Integer(aBounds.size.height); |
375 | #endif |
376 | |
377 | ::glDisable (GL_DITHER); |
378 | ::glDisable (GL_SCISSOR_TEST); |
379 | ::glViewport (0, 0, myWidth, myHeight); |
380 | #if !defined(GL_ES_VERSION_2_0) |
381 | ::glDrawBuffer (GL_BACK); |
382 | if (myGlContext->core11 != NULL) |
383 | { |
384 | ::glMatrixMode (GL_MODELVIEW); |
385 | } |
386 | #endif |
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387 | } |
388 | |
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389 | // ======================================================================= |
390 | // function : SetSwapInterval |
391 | // purpose : |
392 | // ======================================================================= |
393 | void OpenGl_Window::SetSwapInterval() |
394 | { |
395 | if (mySwapInterval != myGlContext->caps->swapInterval) |
396 | { |
397 | mySwapInterval = myGlContext->caps->swapInterval; |
398 | myGlContext->SetSwapInterval (mySwapInterval); |
399 | } |
400 | } |
401 | |
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402 | #endif // __APPLE__ |