blob: 0ca62ad1ccaf91b3e985f6d10523e529e4e7cf31 (
plain)
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
|
/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkTypes.h"
#if defined(SK_BUILD_FOR_MAC)
#include "gl/SkGLContext.h"
#include "AvailabilityMacros.h"
#include <OpenGL/OpenGL.h>
#include <dlfcn.h>
namespace {
class MacGLContext : public SkGLContext {
public:
MacGLContext();
~MacGLContext() override;
private:
void destroyGLContext();
void onPlatformMakeCurrent() const override;
void onPlatformSwapBuffers() const override;
GrGLFuncPtr onPlatformGetProcAddress(const char*) const override;
CGLContextObj fContext;
void* fGLLibrary;
};
MacGLContext::MacGLContext()
: fContext(nullptr)
, fGLLibrary(RTLD_DEFAULT) {
CGLPixelFormatAttribute attributes[] = {
#if MAC_OS_X_VERSION_10_7
kCGLPFAOpenGLProfile, (CGLPixelFormatAttribute) kCGLOGLPVersion_3_2_Core,
#endif
kCGLPFADoubleBuffer,
(CGLPixelFormatAttribute)0
};
CGLPixelFormatObj pixFormat;
GLint npix;
CGLChoosePixelFormat(attributes, &pixFormat, &npix);
if (nullptr == pixFormat) {
SkDebugf("CGLChoosePixelFormat failed.");
return;
}
CGLCreateContext(pixFormat, nullptr, &fContext);
CGLReleasePixelFormat(pixFormat);
if (nullptr == fContext) {
SkDebugf("CGLCreateContext failed.");
return;
}
CGLSetCurrentContext(fContext);
SkAutoTUnref<const GrGLInterface> gl(GrGLCreateNativeInterface());
if (nullptr == gl.get()) {
SkDebugf("Context could not create GL interface.\n");
this->destroyGLContext();
return;
}
if (!gl->validate()) {
SkDebugf("Context could not validate GL interface.\n");
this->destroyGLContext();
return;
}
fGLLibrary = dlopen(
"/System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGL.dylib",
RTLD_LAZY);
this->init(gl.release());
}
MacGLContext::~MacGLContext() {
this->teardown();
this->destroyGLContext();
}
void MacGLContext::destroyGLContext() {
if (fContext) {
CGLReleaseContext(fContext);
fContext = nullptr;
}
if (RTLD_DEFAULT != fGLLibrary) {
dlclose(fGLLibrary);
}
}
void MacGLContext::onPlatformMakeCurrent() const {
CGLSetCurrentContext(fContext);
}
void MacGLContext::onPlatformSwapBuffers() const {
CGLFlushDrawable(fContext);
}
GrGLFuncPtr MacGLContext::onPlatformGetProcAddress(const char* procName) const {
return reinterpret_cast<GrGLFuncPtr>(dlsym(fGLLibrary, procName));
}
} // anonymous namespace
SkGLContext* SkCreatePlatformGLContext(GrGLStandard forcedGpuAPI, SkGLContext* shareContext) {
SkASSERT(!shareContext);
if (shareContext) {
return nullptr;
}
if (kGLES_GrGLStandard == forcedGpuAPI) {
return nullptr;
}
MacGLContext* ctx = new MacGLContext;
if (!ctx->isValid()) {
delete ctx;
return nullptr;
}
return ctx;
}
#endif//defined(SK_BUILD_FOR_MAC)
|
