From afc32ba8ccfcd9b5f457d2588b8a79ba0a9aeb3d Mon Sep 17 00:00:00 2001
From: =?utf8?q?Jos=C3=A9=20Fonseca?= <jose.r.fonseca@gmail.com>
Date: Fri, 30 Mar 2012 00:18:16 +0100
Subject: [PATCH] Drop TRACE_EGL.

Also unnecessary.
---
 CMakeLists.txt     |  7 -------
 glproc.py          | 10 +++++++---
 glstate_images.cpp | 44 +++++++++++++++++++++++++-------------------
 3 files changed, 32 insertions(+), 29 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5c637b4..412dd41 100755
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -506,12 +506,6 @@ if (ENABLE_EGL AND NOT WIN32 AND NOT APPLE)
 
     add_dependencies (egltrace glproc)
 
-    set_property (
-        TARGET egltrace
-        APPEND
-        PROPERTY COMPILE_DEFINITIONS "TRACE_EGL"
-    )
-
     set_target_properties (egltrace PROPERTIES
         # avoid the default "lib" prefix
         PREFIX ""
@@ -628,7 +622,6 @@ if (ENABLE_EGL AND X11_FOUND AND NOT WIN32 AND NOT APPLE)
         TARGET eglretrace
         APPEND
         PROPERTY COMPILE_DEFINITIONS "RETRACE"
-        PROPERTY COMPILE_DEFINITIONS "TRACE_EGL"
     )
 
     target_link_libraries (eglretrace
diff --git a/glproc.py b/glproc.py
index 95ab80f..0f03d8d 100644
--- a/glproc.py
+++ b/glproc.py
@@ -515,20 +515,24 @@ if __name__ == '__main__':
     print '#include "glimports.hpp"'
     print '#include "os.hpp"'
     print
-    print
     dispatcher = GlDispatcher()
+    print
     dispatcher.header()
-    print '#if defined(TRACE_EGL)'
     print
     dispatcher.dispatch_api(eglapi)
-    print '#elif defined(_WIN32)'
+    print
+    print '#if defined(_WIN32)'
     print
     dispatcher.dispatch_api(wglapi)
+    print
     print '#elif defined(__APPLE__)'
+    print
     dispatcher.dispatch_api(cglapi)
+    print
     print '#else'
     print
     dispatcher.dispatch_api(glxapi)
+    print
     print '#endif'
     print
     dispatcher.dispatch_api(glapi)
diff --git a/glstate_images.cpp b/glstate_images.cpp
index 2c4d933..2c7c66b 100644
--- a/glstate_images.cpp
+++ b/glstate_images.cpp
@@ -37,6 +37,10 @@
 #include "glstate_internal.hpp"
 
 
+#ifdef __linux__
+#include <dlfcn.h>
+#endif
+
 #ifdef __APPLE__
 
 #include <Carbon/Carbon.h>
@@ -443,31 +447,33 @@ dumpTextures(JSONWriter &json, Context &context)
 
 static bool
 getDrawableBounds(GLint *width, GLint *height) {
-#if defined(TRACE_EGL)
+#if defined(__linux__)
+    if (dlsym(RTLD_DEFAULT, "eglGetCurrentContext")) {
+        EGLContext currentContext = eglGetCurrentContext();
+        if (currentContext == EGL_NO_CONTEXT) {
+            return false;
+        }
 
-    EGLContext currentContext = eglGetCurrentContext();
-    if (currentContext == EGL_NO_CONTEXT) {
-        return false;
-    }
+        EGLSurface currentSurface = eglGetCurrentSurface(EGL_DRAW);
+        if (currentSurface == EGL_NO_SURFACE) {
+            return false;
+        }
 
-    EGLSurface currentSurface = eglGetCurrentSurface(EGL_DRAW);
-    if (currentSurface == EGL_NO_SURFACE) {
-        return false;
-    }
+        EGLDisplay currentDisplay = eglGetCurrentDisplay();
+        if (currentDisplay == EGL_NO_DISPLAY) {
+            return false;
+        }
 
-    EGLDisplay currentDisplay = eglGetCurrentDisplay();
-    if (currentDisplay == EGL_NO_DISPLAY) {
-        return false;
-    }
+        if (!eglQuerySurface(currentDisplay, currentSurface, EGL_WIDTH, width) ||
+            !eglQuerySurface(currentDisplay, currentSurface, EGL_HEIGHT, height)) {
+            return false;
+        }
 
-    if (!eglQuerySurface(currentDisplay, currentSurface, EGL_WIDTH, width) ||
-        !eglQuerySurface(currentDisplay, currentSurface, EGL_HEIGHT, height)) {
-        return false;
+        return true;
     }
+#endif
 
-    return true;
-
-#elif defined(_WIN32)
+#if defined(_WIN32)
 
     HDC hDC = wglGetCurrentDC();
     if (!hDC) {
-- 
2.43.0