From c0eacf4cc1d398ad2975e84a1728dd47254852a5 Mon Sep 17 00:00:00 2001
From: Oleg Sikorskiy <olegsik@gmail.com>
Date: Sun, 4 Apr 2021 16:10:54 +0300
Subject: [PATCH] LibGfx: Add benchmarks for line drawing and rectangle filling

---
 Userland/Tests/LibGfx/CMakeLists.txt |  1 +
 Userland/Tests/LibGfx/painter.cpp    | 75 ++++++++++++++++++++++++++++
 2 files changed, 76 insertions(+)
 create mode 100644 Userland/Tests/LibGfx/painter.cpp

diff --git a/Userland/Tests/LibGfx/CMakeLists.txt b/Userland/Tests/LibGfx/CMakeLists.txt
index f3f3d4a0a2..1c2bc2f17e 100644
--- a/Userland/Tests/LibGfx/CMakeLists.txt
+++ b/Userland/Tests/LibGfx/CMakeLists.txt
@@ -9,3 +9,4 @@ endforeach()
 
 target_link_libraries(font LibGUI LibCore)
 target_link_libraries(image-decoder LibGUI LibCore)
+target_link_libraries(painter LibGUI LibCore)
diff --git a/Userland/Tests/LibGfx/painter.cpp b/Userland/Tests/LibGfx/painter.cpp
new file mode 100644
index 0000000000..ffb886a791
--- /dev/null
+++ b/Userland/Tests/LibGfx/painter.cpp
@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 2021, Oleg Sikorskiy <olegsik@gmail.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <AK/TestSuite.h>
+
+#include <LibGfx/Bitmap.h>
+#include <LibGfx/Painter.h>
+#include <stdio.h>
+
+BENCHMARK_CASE(diagonal_lines)
+{
+    const int run_count = 50;
+    const int bitmap_size = 2000;
+
+    auto bitmap = Gfx::Bitmap::create(Gfx::BitmapFormat::BGRx8888, { bitmap_size, bitmap_size });
+    Gfx::Painter painter(*bitmap);
+
+    for (int run = 0; run < run_count; run++) {
+        for (int i = 0; i < bitmap_size; i++) {
+            painter.draw_line({ 0, 0 }, { i, bitmap_size - 1 }, Color::Blue);
+            painter.draw_line({ 0, 0 }, { bitmap_size - 1, i }, Color::Blue);
+        }
+    }
+}
+
+BENCHMARK_CASE(fill)
+{
+    const int run_count = 1000;
+    const int bitmap_size = 2000;
+
+    auto bitmap = Gfx::Bitmap::create(Gfx::BitmapFormat::BGRx8888, { bitmap_size, bitmap_size });
+    Gfx::Painter painter(*bitmap);
+
+    for (int run = 0; run < run_count; run++) {
+        painter.fill_rect(bitmap->rect(), Color::Blue);
+    }
+}
+
+BENCHMARK_CASE(fill_with_gradient)
+{
+    const int run_count = 50;
+    const int bitmap_size = 2000;
+
+    auto bitmap = Gfx::Bitmap::create(Gfx::BitmapFormat::BGRx8888, { bitmap_size, bitmap_size });
+    Gfx::Painter painter(*bitmap);
+
+    for (int run = 0; run < run_count; run++) {
+        painter.fill_rect_with_gradient(bitmap->rect(), Color::Blue, Color::Red);
+    }
+}
+
+TEST_MAIN(Painter)