1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
|
#import <Cocoa/Cocoa.h>
#import <OpenGL/gl.h>
#import <jni.h>
#import "ContextUpdater.h"
// see MacOSXPbufferGLContext.java createPbuffer
#define USE_GL_TEXTURE_RECTANGLE_EXT
#ifdef USE_GL_TEXTURE_RECTANGLE_EXT
#ifndef GL_TEXTURE_RECTANGLE_EXT
#define GL_TEXTURE_RECTANGLE_EXT 0x84F5
#endif
#endif
typedef int Bool;
NSAutoreleasePool* gAutoreleasePool = NULL;
void* createContext(void* shareContext, void* view,
int doubleBuffer,
int redBits,
int greenBits,
int blueBits,
int alphaBits,
int depthBits,
int stencilBits,
int accumRedBits,
int accumGreenBits,
int accumBlueBits,
int accumAlphaBits,
int sampleBuffers,
int numSamples,
int* viewNotReady)
{
int colorSize = redBits + greenBits + blueBits;
int accumSize = accumRedBits + accumGreenBits + accumBlueBits;
NSOpenGLContext *nsChareCtx = (NSOpenGLContext*)shareContext;
NSView *nsView = (NSView*)view;
if (nsView != NULL)
{
NSRect frame = [nsView frame];
if ((frame.size.width == 0) || (frame.size.height == 0))
{
fprintf(stderr, "Error: view width or height == 0at \"%s:%s:%d\"\n", __FILE__, __FUNCTION__, __LINE__);
// the view is not ready yet
return NULL;
}
else if ([nsView lockFocusIfCanDraw] == NO)
{
if (viewNotReady != NULL) {
*viewNotReady = 1;
}
// the view is not ready yet
return NULL;
}
}
if (gAutoreleasePool == NULL)
{
gAutoreleasePool = [[NSAutoreleasePool alloc] init];
}
NSOpenGLPixelFormatAttribute attribs[] =
{
NSOpenGLPFANoRecovery, YES,
NSOpenGLPFAAccelerated, YES,
NSOpenGLPFADoubleBuffer, YES,
NSOpenGLPFAColorSize, colorSize,
NSOpenGLPFAAlphaSize, alphaBits,
NSOpenGLPFADepthSize, depthBits,
NSOpenGLPFAStencilSize, stencilBits,
NSOpenGLPFAAccumSize, accumSize,
NSOpenGLPFASampleBuffers, sampleBuffers,
NSOpenGLPFASamples, numSamples,
0
};
NSOpenGLPixelFormat* fmt = [[NSOpenGLPixelFormat alloc] initWithAttributes:attribs];
NSOpenGLContext* nsContext = [[NSOpenGLContext alloc] initWithFormat:fmt shareContext:nsChareCtx];
[fmt release];
if (nsView != nil)
{
[nsContext setView:nsView];
[nsView unlockFocus];
}
[nsContext retain];
//fprintf(stderr, " nsContext=%p\n", nsContext);
return nsContext;
}
Bool makeCurrentContext(void* context, void* view)
{
//fprintf(stderr, "makeCurrentContext context=%p, view=%p\n", context, view);
NSOpenGLContext *nsContext = (NSOpenGLContext*)context;
[nsContext makeCurrentContext];
return true;
}
Bool clearCurrentContext(void* context, void* view)
{
//fprintf(stderr, "clearCurrentContext context=%p, view=%p\n", context, view);
[NSOpenGLContext clearCurrentContext];
return true;
}
Bool deleteContext(void* context, void* view)
{
//fprintf(stderr, "deleteContext context=%p, view=%p\n", context, view);
NSOpenGLContext *nsContext = (NSOpenGLContext*)context;
[nsContext clearDrawable];
[nsContext release];
return true;
}
Bool flushBuffer(void* context, void* view)
{
//fprintf(stderr, "flushBuffer context=%p, view=%p\n", context, view);
NSOpenGLContext *nsContext = (NSOpenGLContext*)context;
[nsContext flushBuffer];
return true;
}
void updateContext(void* context, void* view)
{
//fprintf(stderr, "updateContext context=%p, view=%p\n", context, view);
NSOpenGLContext *nsContext = (NSOpenGLContext*)context;
[nsContext update];
}
void* updateContextRegister(void* context, void* view)
{
//fprintf(stderr, "updateContextRegister context=%p, view=%p\n", context, view);
NSOpenGLContext *nsContext = (NSOpenGLContext*)context;
NSView *nsView = (NSView*)view;
ContextUpdater *contextUpdater = [[ContextUpdater alloc] init];
[contextUpdater registerFor:nsContext with:nsView];
return NULL;
}
void updateContextUnregister(void* context, void* view, void* updater)
{
//fprintf(stderr, "updateContextUnregister context=%p, view=%p\n", context, view);
ContextUpdater *contextUpdater = (ContextUpdater *)updater;
[contextUpdater release];
}
void* createPBuffer(int renderTarget, int internalFormat, int width, int height)
{
// fprintf(stderr, "createPBuffer renderTarget=%d internalFormat=%d width=%d height=%d\n", renderTarget, internalFormat, width, height);
NSOpenGLPixelBuffer* pBuffer = [[NSOpenGLPixelBuffer alloc] initWithTextureTarget:renderTarget textureInternalFormat:internalFormat textureMaxMipMapLevel:0 pixelsWide:width pixelsHigh:height];
return pBuffer;
}
Bool destroyPBuffer(void* context, void* buffer)
{
//fprintf(stderr, "destroyPBuffer context=%p, buffer=%p\n", context, buffer);
NSOpenGLContext *nsContext = (NSOpenGLContext*)context;
NSOpenGLPixelBuffer *pBuffer = (NSOpenGLPixelBuffer*)buffer;
if (nsContext != NULL)
{
[nsContext clearDrawable];
}
[pBuffer release];
return true;
}
void setContextPBuffer(void* context, void* buffer) {
NSOpenGLContext *nsContext = (NSOpenGLContext*)context;
NSOpenGLPixelBuffer *pBuffer = (NSOpenGLPixelBuffer*)buffer;
[nsContext setPixelBuffer: pBuffer cubeMapFace: 0 mipMapLevel: 0 currentVirtualScreen: [nsContext currentVirtualScreen]];
}
void setContextTextureImageToPBuffer(void* context, void* buffer, int colorBuffer) {
NSOpenGLContext *nsContext = (NSOpenGLContext*)context;
NSOpenGLPixelBuffer *pBuffer = (NSOpenGLPixelBuffer*)buffer;
[nsContext setTextureImageToPixelBuffer: pBuffer colorBuffer: (unsigned long) colorBuffer];
}
#include <mach-o/dyld.h>
Bool imagesInitialized = false;
static char libGLStr[] = "/System/Library/Frameworks/OpenGL.framework/Libraries/libGL.dylib";
static char libGLUStr[] = "/System/Library/Frameworks/OpenGL.framework/Libraries/libGLU.dylib";
static const struct mach_header *libGLImage;
static const struct mach_header *libGLUImage;
void* getProcAddress(const char *procname)
{
if (imagesInitialized == false)
{
imagesInitialized = true;
unsigned long options = NSADDIMAGE_OPTION_RETURN_ON_ERROR;
libGLImage = NSAddImage(libGLStr, options);
libGLUImage = NSAddImage(libGLUStr, options);
}
unsigned long options = NSLOOKUPSYMBOLINIMAGE_OPTION_BIND | NSLOOKUPSYMBOLINIMAGE_OPTION_RETURN_ON_ERROR;
char underscoreName[512] = "_";
strcat(underscoreName, procname);
if (NSIsSymbolNameDefinedInImage(libGLImage, underscoreName) == YES)
{
NSSymbol sym = NSLookupSymbolInImage(libGLImage, underscoreName, options);
return NSAddressOfSymbol(sym);
}
if (NSIsSymbolNameDefinedInImage(libGLUImage, underscoreName) == YES)
{
NSSymbol sym = NSLookupSymbolInImage(libGLUImage, underscoreName, options);
return NSAddressOfSymbol(sym);
}
if (NSIsSymbolNameDefinedWithHint(underscoreName, "GL"))
{
NSSymbol sym = NSLookupAndBindSymbol(underscoreName);
return NSAddressOfSymbol(sym);
}
return NULL;
}
void setSwapInterval(void* context, int interval) {
NSOpenGLContext *nsContext = (NSOpenGLContext*)context;
long swapInterval = interval;
[nsContext setValues: &swapInterval forParameter: NSOpenGLCPSwapInterval];
}
|
