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// Copyright 2012 The go-gl Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package gl
import "unsafe"
// #include "gl.h"
//
// void goDebugCB(GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, char *message);
//
// static inline void debugProcCB(GLenum source,
// GLenum type,
// GLuint id,
// GLenum severity,
// GLsizei length,
// const GLchar* message,
// void* userParam)
// {
// goDebugCB(source, type, id, severity, length, (char *)message);
// }
//
// static inline void glDebugMessageCB(void)
// {
// glDebugMessageCallbackARB(debugProcCB, NULL);
// }
//
// /*
// * Depending on glew version 'message' could be 'GLchar*' or 'char*' which
// * causes problems in more strict Go type system. Let's work it around in C
// */
// static inline void __glDebugMessageInsert(GLenum source, GLenum type, GLuint id, GLenum severity,
// GLsizei length, const char *message)
// {
// glDebugMessageInsertARB(source, type, id, severity, length, message);
// }
//
// static inline void GetDebugMessageLog(GLuint count, GLsizei bufSize, GLenum *sources,
// GLenum *types, GLuint *ids, GLenum *severities, GLsizei *lengths, char *messageLog)
// {
// glGetDebugMessageLogARB(count, bufSize, sources, types, ids, severities, lengths, messageLog);
// }
import "C"
type debugProc func(source GLenum, typ GLenum, id uint, severity GLenum, message string)
var debugCB debugProc
//export goDebugCB
func goDebugCB(source GLenum, typ GLenum, id GLuint, severity GLenum, length GLsizei, message *C.char) {
debugCB(source, typ, uint(id), severity, C.GoStringN(message, C.int(length)))
}
func DebugMessageCallback(cbfunc debugProc) {
if cbfunc == nil {
C.glDebugMessageCallbackARB(nil, nil)
} else {
debugCB = cbfunc
C.glDebugMessageCB()
}
}
func DebugMessageControl(source GLenum, typ GLenum, severity GLenum, ids []uint, enabled bool) {
C.glDebugMessageControlARB(C.GLenum(source), C.GLenum(typ), C.GLenum(severity),
C.GLsizei(len(ids)), (*C.GLuint)(unsafe.Pointer(&ids)), glBool(enabled))
}
func DebugMessageInsert(source GLenum, typ GLenum, id uint, severity GLenum, message string) {
C.__glDebugMessageInsert(C.GLenum(source), C.GLenum(typ), C.GLuint(id), C.GLenum(severity),
C.GLsizei(len(message)), C.CString(message))
}
func GetNextDebugMessage() (msg string, source GLenum, typ GLenum, id uint, severity GLenum) {
length := []int32{0}
GetIntegerv(DEBUG_NEXT_LOGGED_MESSAGE_LENGTH, length)
if length[0] < 1 {
msg = ""
return
}
buf := C.malloc(C.size_t(length[0]))
defer C.free(buf)
_id := []GLuint{0}
C.GetDebugMessageLog(C.GLuint(1), C.GLsizei(length[0]),
(*C.GLenum)(&source), (*C.GLenum)(&typ), (*C.GLuint)(&_id[0]),
(*C.GLenum)(&severity), nil, (*C.char)(buf))
id = uint(_id[0])
msg = C.GoString((*C.char)(buf))
return
}
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