X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=init.cpp;h=c37614e4c58de3e3be37ea93f804e2aeace978ea;hp=4802c68712e3b69b086eb5877da28528fc457c3f;hb=refs%2Fheads%2Fepoxy;hpb=ddf71f853e64c3912eed4ab98bfe7503826ce8e1

diff --git a/init.cpp b/init.cpp
index 4802c68..c37614e 100644
--- a/init.cpp
+++ b/init.cpp
@@ -283,13 +283,10 @@ bool check_extensions()
 	// GLES generally doesn't use extensions as actively as desktop OpenGL.
 	// For now, we say that for GLES, we require GLES 3, which has everything
 	// we need.
-	//
-	// Since we use implicit #version 100, we don't have round(). We will
-	// fix this at some later stage.
 	if (!epoxy_is_desktop_gl()) {
 		if (epoxy_gl_version() >= 30) {
 			movit_srgb_textures_supported = true;
-			movit_shader_rounding_supported = false;
+			movit_shader_rounding_supported = true;
 		} else {
 			return false;
 		}
@@ -362,6 +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)
@@ -378,6 +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;
 	}