Don't resize the window on glViewport if there's a FBO bound.

diff --git a/glretrace.py b/glretrace.py
index 5d58b2d..b775609 100644 (file)
--- a/glretrace.py
+++ b/glretrace.py
@@ -200,16 +200,20 @@ class GlRetracer(Retracer):
 
     def call_function(self, function):
         if function.name == "glViewport":
-            print '    if (glretrace::drawable) {'
-            print '        int drawable_width  = x + width;'
-            print '        int drawable_height = y + height;'
-            print '        if (drawable_width  > (int)glretrace::drawable->width ||'
-            print '            drawable_height > (int)glretrace::drawable->height) {'
-            print '            glretrace::drawable->resize(drawable_width, drawable_height);'
-            print '            if (!glretrace::drawable->visible) {'
-            print '                glretrace::drawable->show();'
+            print '    GLint draw_framebuffer = 0;'
+            print '    glGetIntegerv(GL_DRAW_FRAMEBUFFER_BINDING, &draw_framebuffer);'
+            print '    if (draw_framebuffer == 0) {'
+            print '        if (glretrace::drawable) {'
+            print '            int drawable_width  = x + width;'
+            print '            int drawable_height = y + height;'
+            print '            if (drawable_width  > (int)glretrace::drawable->width ||'
+            print '                drawable_height > (int)glretrace::drawable->height) {'
+            print '                glretrace::drawable->resize(drawable_width, drawable_height);'
+            print '                if (!glretrace::drawable->visible) {'
+            print '                    glretrace::drawable->show();'
+            print '                }'
+            print '                glScissor(0, 0, drawable_width, drawable_height);'
             print '            }'
-            print '            glScissor(0, 0, drawable_width, drawable_height);'
             print '        }'
             print '    }'