5 files changed, 21 insertions, 0 deletions
diff --git a/src/render/mgl.cpp b/src/render/mgl.cpp
index 54845b944..bd67c2f0e 100644
--- a/src/render/mgl.cpp
+++ b/src/render/mgl.cpp
@@ -42,6 +42,7 @@ defName(glBindSampler);
 defName(glSamplerParameteri);
 defName(glDebugMessageControl);
 defName(glDebugMessageCallback);
+defName(glFrameTerminator);
 
 #ifdef WIN32
 defName(wglGetExtensionsString);
diff --git a/src/render/mgl.h b/src/render/mgl.h
index a47a70218..e2e710029 100644
--- a/src/render/mgl.h
+++ b/src/render/mgl.h
@@ -99,6 +99,7 @@ typedef void (APIENTRY *glSamplerParameteri_t)
     (GLuint sampler, GLenum pname, GLint param);
 typedef void (APIENTRY *glDebugMessageControl_t) (GLenum source, GLenum type,
     GLenum severity, GLsizei count, const GLuint* ids, GLboolean enabled);
+typedef void (APIENTRY *glFrameTerminator_t) (void);
 
 // callback
 typedef void (APIENTRY *GLDEBUGPROC_t) (GLenum source, GLenum type, GLuint id,
@@ -123,6 +124,7 @@ defNameE(glBindSampler);
 defNameE(glSamplerParameteri);
 defNameE(glDebugMessageControl);
 defNameE(glDebugMessageCallback);
+defNameE(glFrameTerminator);
 
 #ifdef WIN32
 typedef const char* (APIENTRY * wglGetExtensionsString_t) (HDC hdc);
diff --git a/src/render/mobileopenglgraphics.cpp b/src/render/mobileopenglgraphics.cpp
index 0ad5bfeb7..ede89f115 100644
--- a/src/render/mobileopenglgraphics.cpp
+++ b/src/render/mobileopenglgraphics.cpp
@@ -31,6 +31,8 @@
 #include "graphicsvertexes.h"
 #include "logger.h"
 
+#include "render/mgl.h"
+
 #include "resources/image.h"
 #include "resources/openglimagehelper.h"
 
@@ -834,6 +836,10 @@ void MobileOpenGLGraphics::updateScreen()
 #else
     SDL_GL_SwapBuffers();
 #endif
+#ifdef DEBUG_OPENGL
+    if (mglFrameTerminator)
+        mglFrameTerminator();
+#endif
 // may be need clear?
 //  glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
     BLOCK_END("Graphics::updateScreen")
diff --git a/src/render/normalopenglgraphics.cpp b/src/render/normalopenglgraphics.cpp
index 72fbd8a99..8f3659936 100644
--- a/src/render/normalopenglgraphics.cpp
+++ b/src/render/normalopenglgraphics.cpp
@@ -30,6 +30,8 @@
 #include "graphicsvertexes.h"
 #include "logger.h"
 
+#include "render/mgl.h"
+
 #include "resources/image.h"
 #include "resources/openglimagehelper.h"
 
@@ -1095,6 +1097,10 @@ void NormalOpenGLGraphics::updateScreen()
 #else
     SDL_GL_SwapBuffers();
 #endif
+#ifdef DEBUG_OPENGL
+    if (mglFrameTerminator)
+        mglFrameTerminator();
+#endif
 // may be need clear?
 //  glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
     BLOCK_END("Graphics::updateScreen")
diff --git a/src/render/safeopenglgraphics.cpp b/src/render/safeopenglgraphics.cpp
index a191142b5..177cfecb5 100644
--- a/src/render/safeopenglgraphics.cpp
+++ b/src/render/safeopenglgraphics.cpp
@@ -28,6 +28,8 @@
 #include "configuration.h"
 #include "graphicsmanager.h"
 
+#include "render/mgl.h"
+
 #include "resources/image.h"
 #include "resources/openglimagehelper.h"
 
@@ -421,6 +423,10 @@ void SafeOpenGLGraphics::updateScreen()
 #else
     SDL_GL_SwapBuffers();
 #endif
+#ifdef DEBUG_OPENGL
+    if (mglFrameTerminator)
+        mglFrameTerminator();
+#endif
     BLOCK_END("Graphics::updateScreen")
 }