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#ifndef MBGL_RENDERER_GL
#define MBGL_RENDERER_GL
#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>
#else
#error Unsupported Apple platform
#endif
#elif __ANDROID__
#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 {
inline Error(GLenum err, const std::string &msg) : ::std::runtime_error(msg), code(err) {};
const GLenum code;
};
void checkError(const char *cmd, const char *file, int line);
#if defined(DEBUG)
#define MBGL_CHECK_ERROR(cmd) ([&]() { struct __MBGL_C_E { inline ~__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 *));
}
}
#ifdef GL_ES_VERSION_2_0
#define glClearDepth glClearDepthf
#define glDepthRange glDepthRangef
#endif
#endif
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