From 4a781737c1da77015df4547f64f2f88966816343 Mon Sep 17 00:00:00 2001
From: Johannes Schickel
Date: Sat, 12 Dec 2015 01:18:46 +0100
Subject: OPENGL: Resolve OpenGL functions on run-time.

Formerly we relied on static linkage. However, in the presense of modern
OpenGL (ES) implementations it is not easily identifable which library to link
against. For example, on Linux amd64 with nVidia drivers and SDL2 setup to
create a GLES 1.1 context one would need to link against libGL.so. However,
traditionally GLES 1.1 required to link against libGLESv1_CM.so. To prevent a
huge mess we simply resolve the OpenGL functions on run-time now and stop
linking against a static library (in most cases).

GLES support needs to be enabled manually on configure time for now.

Tizen changes have NOT been tested.
---
 backends/graphics/opengl/debug.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'backends/graphics/opengl/debug.cpp')

diff --git a/backends/graphics/opengl/debug.cpp b/backends/graphics/opengl/debug.cpp
index d5d73fb5ec..c4319f5e36 100644
--- a/backends/graphics/opengl/debug.cpp
+++ b/backends/graphics/opengl/debug.cpp
@@ -54,7 +54,7 @@ Common::String getGLErrStr(GLenum error) {
 void checkGLError(const char *expr, const char *file, int line) {
 	GLenum error;
 
-	while ((error = glGetError()) != GL_NO_ERROR) {
+	while ((error = g_context.glGetError()) != GL_NO_ERROR) {
 		// We cannot use error here because we do not know whether we have a
 		// working screen or not.
 		warning("GL ERROR: %s on %s (%s:%d)", getGLErrStr(error).c_str(), expr, file, line);
-- 
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