Add benchmark for comparing multitexturing to non-multitexturing image draws.
Allows benchmarks to override GrContextOptions.
Removes the ability to use the same GrContext for all benchmarks in a config.
Change-Id: I5ab9f6e81055451ac912a66537843d1a49f3b479
Reviewed-on: https://skia-review.googlesource.com/34080
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
diff --git a/bench/MultitextureImageBench.cpp b/bench/MultitextureImageBench.cpp
new file mode 100644
index 0000000..d001cac
--- /dev/null
+++ b/bench/MultitextureImageBench.cpp
@@ -0,0 +1,125 @@
+/*
+ * Copyright 2017 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "Benchmark.h"
+#if SK_SUPPORT_GPU
+
+#include "GrContextOptions.h"
+#include "SkCanvas.h"
+#include "SkImage.h"
+#include "SkRandom.h"
+#include "SkSurface.h"
+
+class MultitextureImages : public Benchmark {
+public:
+ MultitextureImages(int imageSize, int dstRectSize, bool disableMultitexturing)
+ : fImageSize(imageSize)
+ , fDstRectSize(dstRectSize)
+ , fDisableMultitexturing(disableMultitexturing) {
+ fName.appendf("multitexture_images_%dx%d_image_%dx%d_rect", imageSize, imageSize,
+ dstRectSize, dstRectSize);
+ if (disableMultitexturing) {
+ fName.append("_disable_multitexturing");
+ }
+ }
+
+ bool isSuitableFor(Backend backend) override { return kGPU_Backend == backend; }
+
+protected:
+ const char* onGetName() override { return fName.c_str(); }
+
+ void onPerCanvasPreDraw(SkCanvas* canvas) override {
+ auto ii = SkImageInfo::Make(fImageSize, fImageSize, kRGBA_8888_SkColorType,
+ kPremul_SkAlphaType, nullptr);
+ SkRandom random;
+ for (int i = 0; i < kNumImages; ++i) {
+ auto surf = canvas->makeSurface(ii);
+ SkColor color = random.nextU();
+ surf->getCanvas()->clear(color);
+ SkPaint paint;
+ paint.setColor(~color);
+ paint.setBlendMode(SkBlendMode::kSrc);
+ surf->getCanvas()->drawRect(SkRect::MakeLTRB(3, 3, fImageSize - 3, fImageSize - 3),
+ paint);
+ fImages[i] = surf->makeImageSnapshot();
+ }
+ }
+
+ void onPerCanvasPostDraw(SkCanvas*) override {
+ for (int i = 0; i < kNumImages; ++i) {
+ fImages[i].reset();
+ }
+ }
+
+ void onDraw(int loops, SkCanvas* canvas) override {
+ SkRect rect = SkRect::MakeWH(fDstRectSize, fDstRectSize);
+ SkPaint paint;
+ paint.setAlpha(0x40);
+ paint.setFilterQuality(kLow_SkFilterQuality);
+ for (int i = 0; i < loops; i++) {
+ for (int j = 0; j < kNumImages; ++j) {
+ SkVector translate = this->translation(i * kNumImages + j);
+ canvas->drawImageRect(fImages[j].get(), rect.makeOffset(translate.fX, translate.fY),
+ &paint);
+ }
+ // Prevent any batching except without multitexturing since we're trying to measure
+ // drawing distinct images and just repeating images here to increase the workload for
+ // timing reasons.
+ canvas->flush();
+ }
+ }
+
+ void modifyGrContextOptions(GrContextOptions* options) override {
+ options->fDisableImageMultitexturing = fDisableMultitexturing;
+ }
+
+private:
+ SkIPoint onGetSize() override {
+ // The rows and columns are spaced by kTranslate, but the images may overlap if they are
+ // larger than kTranslate and extend beyond the last row/column.
+ return SkIPoint::Make(kTranslate * (kNumColumns - 1) + fDstRectSize,
+ kTranslate * (kNumRows - 1) + fDstRectSize);
+ }
+
+ SkVector translation(int i) const {
+ SkVector offset;
+ offset.fX = i % kNumColumns * kTranslate;
+ offset.fY = (i / kNumColumns) % kNumRows * kTranslate;
+ return offset;
+ }
+
+ static const int kTranslate = 200;
+ static const int kNumColumns = 5;
+ static const int kNumRows = 5;
+ static const int kNumImages = 8;
+
+ sk_sp<SkImage> fImages[kNumImages];
+ SkString fName;
+ int fImageSize;
+ int fDstRectSize;
+ bool fDisableMultitexturing;
+
+ typedef Benchmark INHERITED;
+};
+
+DEF_BENCH(return new MultitextureImages(128, 32, false));
+DEF_BENCH(return new MultitextureImages(128, 32, true));
+DEF_BENCH(return new MultitextureImages(128, 128, false));
+DEF_BENCH(return new MultitextureImages(128, 128, true));
+DEF_BENCH(return new MultitextureImages(128, 256, false));
+DEF_BENCH(return new MultitextureImages(128, 256, true));
+
+DEF_BENCH(return new MultitextureImages(512, 32, false));
+DEF_BENCH(return new MultitextureImages(512, 32, true));
+DEF_BENCH(return new MultitextureImages(512, 128, false));
+DEF_BENCH(return new MultitextureImages(512, 128, true));
+DEF_BENCH(return new MultitextureImages(512, 256, false));
+DEF_BENCH(return new MultitextureImages(512, 256, true));
+DEF_BENCH(return new MultitextureImages(512, 512, false));
+DEF_BENCH(return new MultitextureImages(512, 512, true));
+
+#endif