remove SkThreadedBMPDevice and friends

It is unused, is becoming a maintainence burden and source of bugs,
and takes up a lot of time on the *SAN bots.

Change-Id: If383eb6e4838ca23140f9e16d518b1bfc655fa12
Reviewed-on: https://skia-review.googlesource.com/143307
Auto-Submit: Mike Klein <mtklein@google.com>
Commit-Queue: Herb Derby <herb@google.com>
Reviewed-by: Herb Derby <herb@google.com>

2 files changed, 1 insertions, 63 deletions

diff --git a/tools/viewer/Viewer.cpp b/tools/viewer/Viewer.cpp
index ae77233c9f..8f1d7bbbc8 100644
--- a/tools/viewer/Viewer.cpp
+++ b/tools/viewer/Viewer.cpp
@@ -34,7 +34,6 @@
 #include "SkSurface.h"
 #include "SkTaskGroup.h"
 #include "SkTestFontMgr.h"
-#include "SkThreadedBMPDevice.h"
 #include "SkTo.h"
 #include "SvgSlide.h"
 #include "Viewer.h"
@@ -194,8 +193,6 @@ Viewer::Viewer(int argc, char** argv, void* platformData)
     , fOffset{0.0f, 0.0f}
     , fGestureDevice(GestureDevice::kNone)
     , fPerspectiveMode(kPerspective_Off)
-    , fTileCnt(0)
-    , fThreadCnt(0)
 {
     SkGraphics::Init();
 
@@ -326,40 +323,6 @@ Viewer::Viewer(int argc, char** argv, void* platformData)
 #endif
         this->setBackend(newBackend);
     });
-    fCommands.addCommand('+', "Threaded Backend", "Increase tile count", [this]() {
-        fTileCnt++;
-        if (fThreadCnt == 0) {
-            this->resetExecutor();
-        }
-        this->updateTitle();
-        fWindow->inval();
-    });
-    fCommands.addCommand('-', "Threaded Backend", "Decrease tile count", [this]() {
-        fTileCnt = SkTMax(0, fTileCnt - 1);
-        if (fThreadCnt == 0) {
-            this->resetExecutor();
-        }
-        this->updateTitle();
-        fWindow->inval();
-    });
-    fCommands.addCommand('>', "Threaded Backend", "Increase thread count", [this]() {
-        if (fTileCnt == 0) {
-            return;
-        }
-        fThreadCnt = (fThreadCnt + 1) % fTileCnt;
-        this->resetExecutor();
-        this->updateTitle();
-        fWindow->inval();
-    });
-    fCommands.addCommand('<', "Threaded Backend", "Decrease thread count", [this]() {
-        if (fTileCnt == 0) {
-            return;
-        }
-        fThreadCnt = (fThreadCnt + fTileCnt - 1) % fTileCnt;
-        this->resetExecutor();
-        this->updateTitle();
-        fWindow->inval();
-    });
     fCommands.addCommand('K', "IO", "Save slide to SKP", [this]() {
         fSaveToSKP = true;
         fWindow->inval();
@@ -768,13 +731,6 @@ void Viewer::updateTitle() {
     }
     paintTitle.done();
 
-    if (fTileCnt > 0) {
-        title.appendf(" T%d", fTileCnt);
-        if (fThreadCnt > 0) {
-            title.appendf("/%d", fThreadCnt);
-        }
-    }
-
     switch (fColorMode) {
         case ColorMode::kLegacy:
             title.append(" Legacy 8888");
@@ -1140,17 +1096,7 @@ void Viewer::drawSlide(SkCanvas* canvas) {
                          ? SkSurface::MakeRaster(info, &props)
                          : canvas->makeSurface(info);
         SkPixmap offscreenPixmap;
-        if (fTileCnt > 0 && offscreenSurface->peekPixels(&offscreenPixmap)) {
-            SkBitmap offscreenBitmap;
-            offscreenBitmap.installPixels(offscreenPixmap);
-            threadedCanvas =
-                skstd::make_unique<SkCanvas>(
-                    sk_make_sp<SkThreadedBMPDevice>(
-                         offscreenBitmap, fTileCnt, fThreadCnt, fExecutor.get()));
-            slideCanvas = threadedCanvas.get();
-        } else {
-            slideCanvas = offscreenSurface->getCanvas();
-        }
+        slideCanvas = offscreenSurface->getCanvas();
     }
 
     std::unique_ptr<SkCanvas> xformCanvas = nullptr;
diff --git a/tools/viewer/Viewer.h b/tools/viewer/Viewer.h
index 6fdcd36675..f1ecaf4445 100644
--- a/tools/viewer/Viewer.h
+++ b/tools/viewer/Viewer.h
@@ -106,10 +106,6 @@ private:
     SkMatrix computeMatrix();
     SkPoint mapEvent(float x, float y);
 
-    void resetExecutor() {
-        fExecutor = SkExecutor::MakeFIFOThreadPool(fThreadCnt == 0 ? fTileCnt : fThreadCnt);
-    }
-
     sk_app::Window*        fWindow;
 
     StatsLayer             fStatsLayer;
@@ -172,10 +168,6 @@ private:
 
     SkTArray<std::function<void(void)>> fDeferredActions;
 
-    int fTileCnt;
-    int fThreadCnt;
-    std::unique_ptr<SkExecutor> fExecutor;
-
     SkPaint fPaint;
     SkPaintFields fPaintOverrides;
     bool fPixelGeometryOverrides = false;