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