Revert of Store mipmap levels in deferred texture image (patchset #15 id:280001 of https://codereview.chromium.org/2034933003/ )

Reason for revert:
Crashes on a few different bots (including ASAN). Examples:

https://build.chromium.org/p/client.skia.android/builders/Test-Android-GCC-Nexus7-GPU-Tegra3-Arm7-Release/builds/6324
https://build.chromium.org/p/client.skia/builders/Test-iOS-Clang-iPad4-GPU-SGX554-Arm7-Debug/builds/5400
https://build.chromium.org/p/client.skia/builders/Test-Ubuntu-GCC-Golo-GPU-GT610-x86_64-Debug-ASAN/builds/3539

Original issue's description:
> Store mipmap levels in deferred texture image
>
> When creating the deferred texture image, detect if using medium / high
> quality. If so, generate and store mipmaps in the deferred texture
> image.
>
> When creating a texture from that be sure to read it back out.
>
> BUG=578304
> R=bsalomon@google.com
> GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2034933003
>
> Committed: https://skia.googlesource.com/skia/+/b3105190a6e02d37f1d7f07a3a8bdd368ec7f157

TBR=bsalomon@google.com,ericrk@chromium.org,cblume@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=578304

Review-Url: https://codereview.chromium.org/2083393002

1 files changed, 0 insertions, 117 deletions

diff --git a/gm/deferredtextureimage.cpp b/gm/deferredtextureimage.cpp
deleted file mode 100644
index 82dd90aa5f..0000000000
--- a/gm/deferredtextureimage.cpp
+++ /dev/null
@@ -1,117 +0,0 @@
-/*
- * Copyright 2016 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-#include <vector>
-
-#include "gm.h"
-#include "GrContext.h"
-#include "SkMipMap.h"
-#include "Resources.h"
-
-#if SK_SUPPORT_GPU
-
-class DeferredTextureImage_Medium : public skiagm::GM {
-protected:
-    SkString onShortName() override {
-        return SkString("deferredtextureimage_medium");
-    }
-
-    SkISize onISize() override {
-        return SkISize::Make(512 + 512 + 30, 1110);
-    }
-
-    void onDraw(SkCanvas* canvas) override {
-        GrContext* context = canvas->getGrContext();
-        if (!context) {
-            skiagm::GM::DrawGpuOnlyMessage(canvas);
-            return;
-        }
-
-        SkPaint paint;
-        paint.setFilterQuality(kMedium_SkFilterQuality);
-
-        int mipLevelCount = SkMipMap::ComputeLevelCount(512, 512);
-
-        // create the deferred texture image
-        SkImage::DeferredTextureImageUsageParams params[1];
-        // These should cause mipmaps to be generated
-        params[0].fMatrix = SkMatrix::MakeScale(0.25f, 0.25f);
-        params[0].fQuality = kMedium_SkFilterQuality;
-        size_t requiredMemoryInBytes = fDecodedImage->getDeferredTextureImageData(
-            *context->threadSafeProxy(), params, 1, nullptr, SkSourceGammaTreatment::kRespect);
-        if (requiredMemoryInBytes == 0) {
-            SkDebugf("\nCould not create DeferredTextureImageData.\n");
-            return;
-        }
-
-        std::vector<uint8_t> memory;
-        memory.resize(requiredMemoryInBytes);
-        fDecodedImage->getDeferredTextureImageData(
-            *context->threadSafeProxy(), params, 1, memory.data(),
-            SkSourceGammaTreatment::kRespect);
-        sk_sp<SkImage> uploadedImage = SkImage::MakeFromDeferredTextureImageData(
-            context, memory.data(), SkBudgeted::kNo);
-
-        // draw a column using deferred texture images
-        SkScalar offsetHeight = 10.f;
-        // handle base mipmap level
-        canvas->save();
-        canvas->translate(10.f, offsetHeight);
-        canvas->drawImage(uploadedImage, 0, 0, &paint);
-        canvas->restore();
-        offsetHeight += 512 + 10;
-        // handle generated mipmap levels
-        for (int i = 0; i < mipLevelCount; i++) {
-            SkISize mipSize = SkMipMap::ComputeLevelSize(512, 512, i);
-            canvas->save();
-            canvas->translate(10.f, offsetHeight);
-            canvas->scale(mipSize.width() / 512.f, mipSize.height() / 512.f);
-            canvas->drawImage(uploadedImage, 0, 0, &paint);
-            canvas->restore();
-            offsetHeight += mipSize.height() + 10;
-        }
-
-        // draw a column using SkImage
-        offsetHeight = 10;
-        // handle base mipmap level
-        canvas->save();
-        canvas->translate(512.f + 20.f, offsetHeight);
-        canvas->drawImage(fDecodedImage, 0, 0, &paint);
-        canvas->restore();
-        offsetHeight += 512 + 10;
-        // handle generated mipmap levels
-        for (int i = 0; i < mipLevelCount; i++) {
-            SkISize mipSize = SkMipMap::ComputeLevelSize(512, 512, i);
-            canvas->save();
-            canvas->translate(512.f + 20.f, offsetHeight);
-            canvas->scale(mipSize.width() / 512.f, mipSize.height() / 512.f);
-            canvas->drawImage(fDecodedImage, 0, 0, &paint);
-            canvas->restore();
-            offsetHeight += mipSize.height() + 10;
-        }
-    }
-
-private:
-
-    void onOnceBeforeDraw() override {
-        SkBitmap bitmap;
-        if (!GetResourceAsBitmap("mandrill_512.png", &bitmap)) {
-            bitmap.allocN32Pixels(1, 1);
-            bitmap.eraseARGB(255, 255, 0, 0); // red == bad
-        }
-        fDecodedImage = SkImage::MakeFromBitmap(bitmap);
-    }
-
-    sk_sp<SkImage> fDecodedImage;
-
-    typedef skiagm::GM INHERITED;
-};
-
-//////////////////////////////////////////////////////////////////////////////
-
-DEF_GM( return new DeferredTextureImage_Medium; )
-
-#endif