24
|
1 |
/*------------------------------------------------------------------------
|
|
2 |
*
|
|
3 |
* EGL 1.3
|
|
4 |
* -------
|
|
5 |
*
|
|
6 |
* Copyright (c) 2007 The Khronos Group Inc.
|
|
7 |
*
|
|
8 |
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
9 |
* copy of this software and /or associated documentation files
|
|
10 |
* (the "Materials "), to deal in the Materials without restriction,
|
|
11 |
* including without limitation the rights to use, copy, modify, merge,
|
|
12 |
* publish, distribute, sublicense, and/or sell copies of the Materials,
|
|
13 |
* and to permit persons to whom the Materials are furnished to do so,
|
|
14 |
* subject to the following conditions:
|
|
15 |
*
|
|
16 |
* The above copyright notice and this permission notice shall be included
|
|
17 |
* in all copies or substantial portions of the Materials.
|
|
18 |
*
|
|
19 |
* THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
20 |
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
21 |
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
|
22 |
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
|
|
23 |
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
|
|
24 |
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE MATERIALS OR
|
|
25 |
* THE USE OR OTHER DEALINGS IN THE MATERIALS.
|
|
26 |
*
|
|
27 |
*//**
|
|
28 |
* \file
|
|
29 |
* \brief Mac OS X specific EGL functionality
|
|
30 |
* \note
|
|
31 |
*//*-------------------------------------------------------------------*/
|
|
32 |
|
|
33 |
#include "egl.h"
|
|
34 |
#include "riImage.h"
|
|
35 |
#include <pthread.h>
|
|
36 |
#include <sys/errno.h>
|
|
37 |
|
|
38 |
namespace OpenVGRI
|
|
39 |
{
|
|
40 |
|
|
41 |
/*-------------------------------------------------------------------*//*!
|
|
42 |
* \brief
|
|
43 |
* \param
|
|
44 |
* \return
|
|
45 |
* \note
|
|
46 |
*//*-------------------------------------------------------------------*/
|
|
47 |
|
|
48 |
void* OSGetCurrentThreadID(void)
|
|
49 |
{
|
|
50 |
return (void*)pthread_self(); //TODO this is not safe
|
|
51 |
}
|
|
52 |
|
|
53 |
/*-------------------------------------------------------------------*//*!
|
|
54 |
* \brief
|
|
55 |
* \param
|
|
56 |
* \return
|
|
57 |
* \note
|
|
58 |
*//*-------------------------------------------------------------------*/
|
|
59 |
|
|
60 |
static pthread_mutex_t mutex;
|
|
61 |
static int mutexRefCount = 0;
|
|
62 |
static bool mutexInitialized = false;
|
|
63 |
//acquired mutex cannot be deinited
|
|
64 |
void OSDeinitMutex(void)
|
|
65 |
{
|
|
66 |
RI_ASSERT(mutexInitialized);
|
|
67 |
RI_ASSERT(mutexRefCount == 0);
|
|
68 |
int ret = pthread_mutex_destroy(&mutex);
|
|
69 |
RI_ASSERT(ret != EINVAL); //assert that the mutex has been initialized
|
|
70 |
RI_ASSERT(ret != EAGAIN); //assert that the maximum number of recursive locks hasn't been exceeded
|
|
71 |
RI_ASSERT(!ret); //check that there aren't other errors
|
|
72 |
RI_UNREF(ret);
|
|
73 |
}
|
|
74 |
void OSAcquireMutex(void)
|
|
75 |
{
|
|
76 |
if(!mutexInitialized)
|
|
77 |
{
|
|
78 |
int ret;
|
|
79 |
pthread_mutexattr_t attr;
|
|
80 |
ret = pthread_mutexattr_init(&attr); //initially not locked
|
|
81 |
RI_ASSERT(!ret); //check that there aren't any errors
|
|
82 |
ret = pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE); //count the number of recursive locks
|
|
83 |
RI_ASSERT(!ret); //check that there aren't any errors
|
|
84 |
ret = pthread_mutex_init(&mutex, &attr);
|
|
85 |
pthread_mutexattr_destroy(&attr);
|
|
86 |
RI_ASSERT(!ret); //check that there aren't more errors
|
|
87 |
RI_UNREF(ret);
|
|
88 |
mutexInitialized = true;
|
|
89 |
}
|
|
90 |
int ret = pthread_mutex_lock(&mutex);
|
|
91 |
RI_ASSERT(ret != EINVAL); //assert that the mutex has been initialized
|
|
92 |
RI_ASSERT(ret != EAGAIN); //assert that the maximum number of recursive locks hasn't been exceeded
|
|
93 |
RI_ASSERT(ret != EDEADLK); //recursive mutexes shouldn't return this
|
|
94 |
RI_ASSERT(!ret); //check that there aren't other errors
|
|
95 |
RI_UNREF(ret);
|
|
96 |
mutexRefCount++;
|
|
97 |
}
|
|
98 |
void OSReleaseMutex(void)
|
|
99 |
{
|
|
100 |
RI_ASSERT(mutexInitialized);
|
|
101 |
mutexRefCount--;
|
|
102 |
RI_ASSERT(mutexRefCount >= 0);
|
|
103 |
int ret = pthread_mutex_unlock(&mutex);
|
|
104 |
RI_ASSERT(ret != EPERM); //assert that the current thread owns the mutex
|
|
105 |
RI_ASSERT(!ret); //check that there aren't more errors
|
|
106 |
RI_UNREF(ret);
|
|
107 |
}
|
|
108 |
|
|
109 |
/*-------------------------------------------------------------------*//*!
|
|
110 |
* \brief
|
|
111 |
* \param
|
|
112 |
* \return
|
|
113 |
* \note
|
|
114 |
*//*-------------------------------------------------------------------*/
|
|
115 |
|
|
116 |
static bool isBigEndian()
|
|
117 |
{
|
|
118 |
static const RIuint32 v = 0x12345678u;
|
|
119 |
const RIuint8* p = (const RIuint8*)&v;
|
|
120 |
RI_ASSERT (*p == (RIuint8)0x12u || *p == (RIuint8)0x78u);
|
|
121 |
return (*p == (RIuint8)(0x12)) ? true : false;
|
|
122 |
}
|
|
123 |
|
|
124 |
|
|
125 |
/*-------------------------------------------------------------------*//*!
|
|
126 |
* \brief
|
|
127 |
* \param
|
|
128 |
* \return
|
|
129 |
* \note
|
|
130 |
*//*-------------------------------------------------------------------*/
|
|
131 |
|
|
132 |
#ifdef RI_USE_GLUT
|
|
133 |
# include <OpenGL/gl.h>
|
|
134 |
# include <GLUT/glut.h>
|
|
135 |
|
|
136 |
struct OSWindowContext
|
|
137 |
{
|
|
138 |
int window;
|
|
139 |
unsigned int* tmp;
|
|
140 |
int tmpWidth;
|
|
141 |
int tmpHeight;
|
|
142 |
};
|
|
143 |
|
|
144 |
OSWindowContext* OSCreateWindowContext(EGLNativeWindowType window)
|
|
145 |
{
|
|
146 |
try
|
|
147 |
{
|
|
148 |
OSWindowContext* ctx = RI_NEW(OSWindowContext, ());
|
|
149 |
ctx->window = window;
|
|
150 |
ctx->tmp = NULL;
|
|
151 |
ctx->tmpWidth = 0;
|
|
152 |
ctx->tmpHeight = 0;
|
|
153 |
return ctx;
|
|
154 |
}
|
|
155 |
catch(std::bad_alloc)
|
|
156 |
{
|
|
157 |
return NULL;
|
|
158 |
}
|
|
159 |
}
|
|
160 |
|
|
161 |
void OSDestroyWindowContext(OSWindowContext* ctx)
|
|
162 |
{
|
|
163 |
if(ctx)
|
|
164 |
{
|
|
165 |
RI_DELETE_ARRAY(ctx->tmp);
|
|
166 |
RI_DELETE(ctx);
|
|
167 |
}
|
|
168 |
}
|
|
169 |
|
|
170 |
bool OSIsWindow(const void* context)
|
|
171 |
{
|
|
172 |
OSWindowContext* ctx = (OSWindowContext*)context;
|
|
173 |
if(ctx)
|
|
174 |
{
|
|
175 |
//TODO implement
|
|
176 |
return true;
|
|
177 |
}
|
|
178 |
return false;
|
|
179 |
}
|
|
180 |
|
|
181 |
void OSGetWindowSize(const OSWindowContext* ctx, int& width, int& height)
|
|
182 |
{
|
|
183 |
if(ctx)
|
|
184 |
{
|
|
185 |
int currWin = glutGetWindow();
|
|
186 |
glutSetWindow((int)ctx->window);
|
|
187 |
width = glutGet(GLUT_WINDOW_WIDTH);
|
|
188 |
height = glutGet(GLUT_WINDOW_HEIGHT);
|
|
189 |
glutSetWindow(currWin);
|
|
190 |
}
|
|
191 |
else
|
|
192 |
{
|
|
193 |
width = 0;
|
|
194 |
height = 0;
|
|
195 |
}
|
|
196 |
}
|
|
197 |
|
|
198 |
void OSBlitToWindow(OSWindowContext* ctx, const Drawable* drawable)
|
|
199 |
{
|
|
200 |
if(ctx)
|
|
201 |
{
|
|
202 |
int w = drawable->getWidth();
|
|
203 |
int h = drawable->getHeight();
|
|
204 |
|
|
205 |
int currWin = glutGetWindow();
|
|
206 |
glutSetWindow((int)ctx->window);
|
|
207 |
|
|
208 |
if(!ctx->tmp || ctx->tmpWidth != w || ctx->tmpHeight != h)
|
|
209 |
{
|
|
210 |
RI_DELETE_ARRAY(ctx->tmp);
|
|
211 |
ctx->tmp = NULL;
|
|
212 |
try
|
|
213 |
{
|
|
214 |
ctx->tmp = RI_NEW_ARRAY(unsigned int, w*h); //throws bad_alloc
|
|
215 |
ctx->tmpWidth = w;
|
|
216 |
ctx->tmpHeight = h;
|
|
217 |
}
|
|
218 |
catch(std::bad_alloc)
|
|
219 |
{
|
|
220 |
//do nothing
|
|
221 |
}
|
|
222 |
}
|
|
223 |
|
|
224 |
if(ctx->tmp)
|
|
225 |
{
|
|
226 |
glViewport(0, 0, w, h);
|
|
227 |
glDisable(GL_DEPTH_TEST);
|
|
228 |
glMatrixMode(GL_PROJECTION);
|
|
229 |
glLoadIdentity();
|
|
230 |
glMatrixMode(GL_MODELVIEW);
|
|
231 |
glLoadIdentity();
|
|
232 |
//NOTE: we assume here that the display is always in sRGB color space
|
|
233 |
VGImageFormat f = VG_sXBGR_8888;
|
|
234 |
if(isBigEndian())
|
|
235 |
f = VG_sRGBX_8888;
|
|
236 |
vgReadPixels(ctx->tmp, w*sizeof(unsigned int), f, 0, 0, w, h);
|
|
237 |
glDrawPixels(w, h, GL_RGBA, GL_UNSIGNED_BYTE, ctx->tmp);
|
|
238 |
}
|
|
239 |
|
|
240 |
glutSwapBuffers(); //shows the OpenGL frame buffer
|
|
241 |
glutSetWindow(currWin); //restore the current window
|
|
242 |
}
|
|
243 |
}
|
|
244 |
|
|
245 |
#else
|
|
246 |
|
|
247 |
/*-------------------------------------------------------------------*//*!
|
|
248 |
* \brief
|
|
249 |
* \param
|
|
250 |
* \return
|
|
251 |
* \note
|
|
252 |
*//*-------------------------------------------------------------------*/
|
|
253 |
|
|
254 |
//Mac OS X native
|
|
255 |
#include <OpenGL/gl.h>
|
|
256 |
#include <AGL/agl.h>
|
|
257 |
|
|
258 |
struct OSWindowContext
|
|
259 |
{
|
|
260 |
AGLPixelFormat aglPixFmt;
|
|
261 |
AGLContext aglContext;
|
|
262 |
WindowPtr window;
|
|
263 |
unsigned int* tmp;
|
|
264 |
int tmpWidth;
|
|
265 |
int tmpHeight;
|
|
266 |
};
|
|
267 |
|
|
268 |
void* OSCreateWindowContext(EGLNativeWindowType window)
|
|
269 |
{
|
|
270 |
OSWindowContext* ctx = NULL;
|
|
271 |
try
|
|
272 |
{
|
|
273 |
ctx = RI_NEW(OSWindowContext, ());
|
|
274 |
}
|
|
275 |
catch(std::bad_alloc)
|
|
276 |
{
|
|
277 |
return NULL;
|
|
278 |
}
|
|
279 |
|
|
280 |
GLint attrib[] = { AGL_RGBA, AGL_DOUBLEBUFFER, AGL_DEPTH_SIZE, 32, AGL_NONE };
|
|
281 |
ctx->aglPixFmt = aglChoosePixelFormat(NULL, 0, attrib);
|
|
282 |
if(!ctx->aglPixFmt)
|
|
283 |
{
|
|
284 |
RI_DELETE(ctx);
|
|
285 |
return NULL;
|
|
286 |
}
|
|
287 |
|
|
288 |
ctx->aglContext = aglCreateContext(ctx->aglPixFmt, NULL);
|
|
289 |
if(!ctx->aglContext)
|
|
290 |
{
|
|
291 |
aglDestroyPixelFormat(ctx->aglPixFmt);
|
|
292 |
RI_DELETE(ctx);
|
|
293 |
return NULL;
|
|
294 |
}
|
|
295 |
|
|
296 |
GLint opaque = 1;
|
|
297 |
GLint sync = 1;
|
|
298 |
aglSetInteger(ctx->aglContext, AGL_SURFACE_OPACITY, &opaque);
|
|
299 |
aglSetInteger(ctx->aglContext, AGL_SWAP_INTERVAL, &sync);
|
|
300 |
|
|
301 |
ctx->window = (WindowPtr)window;
|
|
302 |
ctx->tmp = NULL;
|
|
303 |
ctx->tmpWidth = 0;
|
|
304 |
ctx->tmpHeight = 0;
|
|
305 |
return ctx;
|
|
306 |
}
|
|
307 |
|
|
308 |
void OSDestroyWindowContext(void* context)
|
|
309 |
{
|
|
310 |
OSWindowContext* ctx = (OSWindowContext*)context;
|
|
311 |
if(ctx)
|
|
312 |
{
|
|
313 |
aglSetDrawable(ctx->aglContext, NULL);
|
|
314 |
aglSetCurrentContext(NULL);
|
|
315 |
aglDestroyContext(ctx->aglContext);
|
|
316 |
aglDestroyPixelFormat(ctx->aglPixFmt);
|
|
317 |
RI_DELETE_ARRAY(ctx->tmp);
|
|
318 |
RI_DELETE(ctx);
|
|
319 |
}
|
|
320 |
}
|
|
321 |
|
|
322 |
bool OSIsWindow(const void* context)
|
|
323 |
{
|
|
324 |
OSWindowContext* ctx = (OSWindowContext*)context;
|
|
325 |
if(ctx)
|
|
326 |
{
|
|
327 |
if(IsValidWindowPtr(ctx->window))
|
|
328 |
return true;
|
|
329 |
}
|
|
330 |
return false;
|
|
331 |
}
|
|
332 |
|
|
333 |
void OSGetWindowSize(const void* context, int& width, int& height)
|
|
334 |
{
|
|
335 |
OSWindowContext* ctx = (OSWindowContext*)context;
|
|
336 |
if(ctx)
|
|
337 |
{
|
|
338 |
Rect rectPort;
|
|
339 |
GetWindowPortBounds(ctx->window, &rectPort);
|
|
340 |
width = rectPort.right - rectPort.left;
|
|
341 |
height = rectPort.bottom - rectPort.top;
|
|
342 |
}
|
|
343 |
else
|
|
344 |
{
|
|
345 |
width = 0;
|
|
346 |
height = 0;
|
|
347 |
}
|
|
348 |
}
|
|
349 |
|
|
350 |
void OSBlitToWindow(void* context, const Drawable* drawable)
|
|
351 |
{
|
|
352 |
OSWindowContext* ctx = (OSWindowContext*)context;
|
|
353 |
if(ctx)
|
|
354 |
{
|
|
355 |
int w = drawable->getWidth();
|
|
356 |
int h = drawable->getHeight();
|
|
357 |
|
|
358 |
GrafPtr portSave = NULL;
|
|
359 |
GetPort(&portSave);
|
|
360 |
SetPort((GrafPtr)GetWindowPort(ctx->window));
|
|
361 |
aglSetDrawable(ctx->aglContext, GetWindowPort(ctx->window));
|
|
362 |
aglSetCurrentContext(ctx->aglContext);
|
|
363 |
|
|
364 |
if(!ctx->tmp || ctx->tmpWidth != w || ctx->tmpHeight != h)
|
|
365 |
{
|
|
366 |
RI_DELETE_ARRAY(ctx->tmp);
|
|
367 |
ctx->tmp = NULL;
|
|
368 |
try
|
|
369 |
{
|
|
370 |
ctx->tmp = RI_NEW_ARRAY(unsigned int, w*h); //throws bad_alloc
|
|
371 |
ctx->tmpWidth = w;
|
|
372 |
ctx->tmpHeight = h;
|
|
373 |
}
|
|
374 |
catch(std::bad_alloc)
|
|
375 |
{
|
|
376 |
//do nothing
|
|
377 |
}
|
|
378 |
}
|
|
379 |
|
|
380 |
if(ctx->tmp)
|
|
381 |
{
|
|
382 |
glViewport(0, 0, w, h);
|
|
383 |
glDisable(GL_DEPTH_TEST);
|
|
384 |
glMatrixMode(GL_PROJECTION);
|
|
385 |
glLoadIdentity();
|
|
386 |
glMatrixMode(GL_MODELVIEW);
|
|
387 |
glLoadIdentity();
|
|
388 |
//NOTE: we assume here that the display is always in sRGB color space
|
|
389 |
VGImageFormat f = VG_sXBGR_8888;
|
|
390 |
if(isBigEndian())
|
|
391 |
f = VG_sRGBX_8888;
|
|
392 |
vgReadPixels(ctx->tmp, w*sizeof(unsigned int), f, 0, 0, w, h);
|
|
393 |
glDrawPixels(w, h, GL_RGBA, GL_UNSIGNED_BYTE, ctx->tmp);
|
|
394 |
}
|
|
395 |
|
|
396 |
aglSwapBuffers(ctx->aglContext);
|
|
397 |
SetPort(portSave);
|
|
398 |
}
|
|
399 |
}
|
|
400 |
|
|
401 |
#endif
|
|
402 |
|
|
403 |
EGLDisplay OSGetDisplay(EGLNativeDisplayType display_id)
|
|
404 |
{
|
|
405 |
RI_UNREF(display_id);
|
|
406 |
return (EGLDisplay)1; //support only a single display
|
|
407 |
}
|
|
408 |
|
|
409 |
} //namespace OpenVGRI
|