Introduce common frame dumping configuration and helpers

This introduces a common FrameDumpPath configuration field, as well as
helper functions in dedicated igt_frame for writing cairo surfaces
to png files.

Signed-off-by: Paul Kocialkowski <paul.kocialkowski@linux.intel.com>
Reviewed-by: Lyude <lyude@redhat.com>

1 files changed, 43 insertions, 0 deletions

diff --git a/lib/igt_frame.h b/lib/igt_frame.h
new file mode 100644
index 00000000..ec6a1643
--- /dev/null
+++ b/lib/igt_frame.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright © 2017 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ *  Paul Kocialkowski <paul.kocialkowski@linux.intel.com>
+ */
+
+#ifndef IGT_FRAME_H
+#define IGT_FRAME_H
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "igt.h"
+#include <stdbool.h>
+
+bool igt_frame_dump_is_enabled(void);
+void igt_write_compared_frames_to_png(cairo_surface_t *reference,
+				      cairo_surface_t *capture,
+				      const char *reference_suffix,
+				      const char *capture_suffix);
+
+#endif