remove unused yuv methods

Bug: skia:
Change-Id: Ie1e6c905d8989b49c2cf5c9e5fd1f383268f6480
Reviewed-on: https://skia-review.googlesource.com/14645
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Mike Reed <reed@google.com>

2 files changed, 0 insertions, 79 deletions

diff --git a/src/utils/SkRGBAToYUV.cpp b/src/utils/SkRGBAToYUV.cpp
deleted file mode 100644
index 0528b144f0..0000000000
--- a/src/utils/SkRGBAToYUV.cpp
+++ /dev/null
@@ -1,58 +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 "SkRGBAToYUV.h"
-#include "SkCanvas.h"
-#include "SkColorMatrixFilterRowMajor255.h"
-#include "SkImage.h"
-#include "SkPaint.h"
-#include "SkSurface.h"
-
-bool SkRGBAToYUV(const SkImage* image, const SkISize sizes[3], void* const planes[3],
-                 const size_t rowBytes[3], SkYUVColorSpace colorSpace) {
-    // Matrices that go from RGBA to YUV.
-    static const SkScalar kYUVColorSpaceInvMatrices[][15] = {
-        // kJPEG_SkYUVColorSpace
-        { 0.299001f,  0.586998f,   0.114001f,  0.f, 0.0000821798f * 255.f,
-         -0.168736f, -0.331263f,   0.499999f,  0.f, 0.499954f * 255.f,
-          0.499999f, -0.418686f,  -0.0813131f, 0.f, 0.499941f * 255.f},
-
-        // kRec601_SkYUVColorSpace
-        { 0.256951f,  0.504421f,   0.0977346f, 0.f, 0.0625f * 255.f,
-         -0.148212f, -0.290954f,   0.439166f,  0.f, 0.5f * 255.f,
-          0.439166f,  -0.367886f, -0.0712802f, 0.f, 0.5f * 255.f},
-
-        // kRec709_SkYUVColorSpace
-        { 0.182663f,  0.614473f,  0.061971f,  0.f, 0.0625f * 255.f,
-         -0.100672f, -0.338658f,  0.43933f,   0.f, 0.5f * 255.f,
-          0.439142f, -0.39891f,  -0.040231f,  0.f, 0.5f * 255.f},
-    };
-    static_assert(kLastEnum_SkYUVColorSpace == 2, "yuv color matrix array problem");
-    static_assert(kJPEG_SkYUVColorSpace     == 0, "yuv color matrix array problem");
-    static_assert(kRec601_SkYUVColorSpace   == 1, "yuv color matrix array problem");
-    static_assert(kRec709_SkYUVColorSpace   == 2, "yuv color matrix array problem");
-
-    for (int i = 0; i < 3; ++i) {
-        size_t rb = rowBytes[i] ? rowBytes[i] : sizes[i].fWidth;
-        auto surface(SkSurface::MakeRasterDirect(
-                SkImageInfo::MakeA8(sizes[i].fWidth, sizes[i].fHeight), planes[i], rb));
-        if (!surface) {
-            return false;
-        }
-        SkPaint paint;
-        paint.setFilterQuality(kLow_SkFilterQuality);
-        paint.setBlendMode(SkBlendMode::kSrc);
-        int rowStartIdx = 5 * i;
-        const SkScalar* row = kYUVColorSpaceInvMatrices[colorSpace] + rowStartIdx;
-        paint.setColorFilter(
-                SkColorMatrixFilterRowMajor255::MakeSingleChannelOutput(row));
-        surface->getCanvas()->drawImageRect(image, SkIRect::MakeWH(image->width(), image->height()),
-                                            SkRect::MakeIWH(surface->width(), surface->height()),
-                                            &paint);
-    }
-    return true;
-}
diff --git a/src/utils/SkRGBAToYUV.h b/src/utils/SkRGBAToYUV.h
deleted file mode 100644
index 5c3c1b1465..0000000000
--- a/src/utils/SkRGBAToYUV.h
+++ /dev/null
@@ -1,21 +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.
- */
-
-#ifndef SkRGBAToYUV_DEFINED
-#define SkRGBAToYUV_DEFINED
-
-#include "SkPixmap.h"
-#include "SkSize.h"
-
-class SkImage;
-// Works with any image type at the moment, but in the future it may only work with raster-backed
-// images. This really should take a SkPixmap for the input, however the implementation for the
-// time being requires an image.
-bool SkRGBAToYUV(const SkImage*, const SkISize [3], void* const planes[3],
-                 const size_t rowBytes[3], SkYUVColorSpace);
-
-#endif