blob: c849a935c20c8e469a41ce73e9937e8cf96d888d (
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
|
#pragma once
#include <string>
#include <stdexcept>
#include <vector>
#if __APPLE__
#include "TargetConditionals.h"
#if TARGET_OS_IPHONE
#include <OpenGLES/ES2/gl.h>
#include <OpenGLES/ES2/glext.h>
#elif TARGET_IPHONE_SIMULATOR
#include <OpenGLES/ES2/gl.h>
#include <OpenGLES/ES2/glext.h>
#elif TARGET_OS_MAC
#include <OpenGL/OpenGL.h>
#include <OpenGL/gl.h>
#include <OpenGL/glext.h>
#else
#error Unsupported Apple platform
#endif
#elif __ANDROID__ || MBGL_USE_GLES2
#define GL_GLEXT_PROTOTYPES
#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>
#else
#define GL_GLEXT_PROTOTYPES
#include <GL/gl.h>
#include <GL/glext.h>
#endif
namespace mbgl {
namespace gl {
struct Error : std::runtime_error {
using std::runtime_error::runtime_error;
};
void checkError(const char *cmd, const char *file, int line);
#ifndef NDEBUG
#define MBGL_CHECK_ERROR(cmd) ([&]() { struct __MBGL_C_E { ~__MBGL_C_E() { ::mbgl::gl::checkError(#cmd, __FILE__, __LINE__); } } __MBGL_C_E; return cmd; }())
#else
#define MBGL_CHECK_ERROR(cmd) (cmd)
#endif
class ExtensionFunctionBase {
public:
static std::vector<ExtensionFunctionBase*>& functions();
typedef std::pair<const char *, const char *> Probe;
std::vector<Probe> probes;
void (*ptr)();
};
template <class>
class ExtensionFunction;
template <class R, class... Args>
class ExtensionFunction<R (Args...)> : protected ExtensionFunctionBase {
public:
ExtensionFunction(std::initializer_list<Probe> probes_) {
probes = probes_;
ExtensionFunctionBase::functions().push_back(this);
}
explicit operator bool() const {
return ptr;
}
R operator()(Args... args) const {
return (*reinterpret_cast<R (*)(Args...)>(ptr))(std::forward<Args>(args)...);
}
};
using glProc = void (*)();
void InitializeExtensions(glProc (*getProcAddress)(const char *));
extern ExtensionFunction<void (GLuint array)>
BindVertexArray;
extern ExtensionFunction<void (GLsizei n, const GLuint* arrays)>
DeleteVertexArrays;
extern ExtensionFunction<void (GLsizei n, GLuint* arrays)>
GenVertexArrays;
} // namespace gl
} // namespace mbgl
|
