X-Git-Url: https://git.cworth.org/git?a=blobdiff_plain;f=glretrace_main.cpp;h=cd35889c9dff873303dd27d26274829d296e664d;hb=0f0a598677d6d1c97be830c5fa20d6187480aa52;hp=3a900927a128a3d6d46ec0055002d03f964f7fe6;hpb=46963dad18214fc45b248ecdc9f5931cf417705d;p=apitrace

diff --git a/glretrace_main.cpp b/glretrace_main.cpp
index 3a90092..cd35889 100644
--- a/glretrace_main.cpp
+++ b/glretrace_main.cpp
@@ -103,6 +103,37 @@ checkGlError(Trace::Call &call) {
     std::cerr << "\n";
 }
 
+/**
+ * Grow the current drawble.
+ *
+ * We need to infer the drawable size from GL calls because the drawable sizes
+ * are specified by OS specific calls which we do not trace.
+ */
+void
+updateDrawable(int width, int height) {
+    if (!drawable) {
+        return;
+    }
+
+    if (width  <= glretrace::drawable->width &&
+        height <= glretrace::drawable->height) {
+        return;
+    }
+
+    // Check for bound framebuffer last, as this may have a performance impact.
+    GLint draw_framebuffer = 0;
+    glGetIntegerv(GL_DRAW_FRAMEBUFFER_BINDING, &draw_framebuffer);
+    if (draw_framebuffer != 0) {
+        return;
+    }
+
+    glretrace::drawable->resize(width, height);
+    if (!drawable->visible) {
+        drawable->show();
+    }
+    glScissor(0, 0, width, height);
+}
+
 
 void snapshot(unsigned call_no) {
     if (!drawable ||