Add a trace dialog.

[apitrace] / glretrace_main.cpp

diff --git a/glretrace_main.cpp b/glretrace_main.cpp
index 1f3e594c0cbc96f75b072abeea525d71b84f2cc7..a2d2bdd75fdd47808f6577cd28d992dcec22f163 100644 (file)
--- a/glretrace_main.cpp
+++ b/glretrace_main.cpp
@@ -103,7 +103,7 @@ checkGlError(void) {
 static void snapshot(Image::Image &image) {
     GLint drawbuffer = double_buffer ? GL_BACK : GL_FRONT;
     GLint readbuffer = double_buffer ? GL_BACK : GL_FRONT;
-    glGetIntegerv(GL_READ_BUFFER, &drawbuffer);
+    glGetIntegerv(GL_DRAW_BUFFER, &drawbuffer);
     glGetIntegerv(GL_READ_BUFFER, &readbuffer);
     glReadBuffer(drawbuffer);
     glReadPixels(0, 0, image.width, image.height, GL_RGBA, GL_UNSIGNED_BYTE, image.pixels);