Add render_benchmark

src/CMakeLists.txt

@@ -209,4 +209,5 @@ endif()
 if(ENABLE_BENCHMARKS)
   include(FindBenchmarks)
   find_benchmarks(doc doc-lib)
+  find_benchmarks(render render-lib)
 endif()

src/render/render_benchmark.cpp

@@ -0,0 +1,80 @@
+// Aseprite Document Library
+// Copyright (c) 2019 Igara Studio S.A.
+//
+// This file is released under the terms of the MIT license.
+// Read LICENSE.txt for more information.
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "render/render.h"
+
+#include "doc/cel.h"
+#include "doc/image.h"
+#include "doc/layer.h"
+#include "doc/palette.h"
+#include "doc/primitives.h"
+#include "doc/sprite.h"
+
+#include <benchmark/benchmark.h>
+
+using namespace doc;
+using namespace render;
+
+static void Bm_Render(benchmark::State& state)
+{
+  const int w = state.range(0);
+  const int h = state.range(1);
+
+  Sprite* spr = Sprite::createBasicSprite(ImageSpec(ColorMode::RGB, w, h));
+  LayerImage* lay1 = static_cast<LayerImage*>(spr->root()->firstLayer());
+  LayerImage* lay2 = new LayerImage(spr);
+  LayerImage* lay3 = new LayerImage(spr);
+
+  spr->root()->addLayer(lay2);
+  spr->root()->addLayer(lay3);
+
+  Image* img1 = lay1->cel(0)->image();
+  ImageRef img2(Image::create(spr->pixelFormat(), w, h));
+  ImageRef img3(Image::create(spr->pixelFormat(), w, h));
+  Cel* cel2 = new Cel(frame_t(0), img2);
+  Cel* cel3 = new Cel(frame_t(0), img3);
+
+  lay2->addCel(cel2);
+  lay3->addCel(cel3);
+
+  clear_image(img1, 0);
+  clear_image(img2.get(), 0);
+  clear_image(img3.get(), 0);
+  fill_rect(img1, 32, 32, w-64, h-64, rgba(32, 128, 255, 128));
+  fill_rect(img2.get(), 0, 0, w-64, h-64, rgba(255, 100, 32, 128));
+  fill_rect(img3.get(), 64, 64, w-64, h-64, rgba(200, 64, 80, 128));
+
+  std::unique_ptr<Image> dst(Image::create(spr->pixelFormat(), w, h));
+  clear_image(dst.get(), 0);
+
+  while (state.KeepRunning()) {
+    clear_image(dst.get(), 0);
+
+    Render render;
+    render.setBgType(BgType::CHECKED);
+    render.setBgZoom(true);
+    render.setBgColor1(rgba(100, 100, 100, 255));
+    render.setBgColor2(rgba(200, 200, 200, 255));
+    render.setBgCheckedSize(gfx::Size(16, 16));
+    render.renderSprite(
+      dst.get(), spr, frame_t(0),
+      gfx::Clip(0, 0, 0, 0, w, h));
+  }
+}
+
+BENCHMARK(Bm_Render)
+  ->Args({ 256, 256 })
+  ->Args({ 1024, 256 })
+  ->Args({ 256, 1024 })
+  ->Args({ 1024, 1024 })
+  ->Args({ 4096, 4096 })
+  ->Unit(benchmark::kMicrosecond);
+
+BENCHMARK_MAIN();