X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=init.cpp;fp=init.cpp;h=c37614e4c58de3e3be37ea93f804e2aeace978ea;hp=4b8c970df5f705fc372ed59effd732bab2fc0e95;hb=34036d849937f22c0addfcba44f65207c96deddc;hpb=f332ac28f6a5255a6908c29124589148a8a5b2c5

diff --git a/init.cpp b/init.cpp
index 4b8c970..c37614e 100644
--- a/init.cpp
+++ b/init.cpp
@@ -359,6 +359,17 @@ double get_glsl_version()
 	return glsl_version;
 }
 
+void APIENTRY debug_callback(GLenum source,
+                             GLenum type,
+                             GLuint id,
+                             GLenum severity,
+                             GLsizei length,
+                             const char *message,
+                             const void *userParam)
+{
+	printf("Debug: %s\n", message);
+}
+
 }  // namespace
 
 bool init_movit(const string& data_directory, MovitDebugLevel debug_level)
@@ -375,6 +386,12 @@ bool init_movit(const string& data_directory, MovitDebugLevel debug_level)
 	glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
 	glDisable(GL_DITHER);
 
+	// You can turn this on if you want detailed debug messages from the driver.
+	// You should probably also ask for a debug context (see gtest_sdl_main.cpp),
+	// or you might not get much data back.
+	// glDebugMessageCallbackARB(callback, NULL);
+	// glDebugMessageControlARB(GL_DONT_CARE, GL_DONT_CARE, GL_DONT_CARE, 0, 0, GL_TRUE);
+
 	if (!check_extensions()) {
 		return false;
 	}