Remove SkLightingShader and associated classes

Change-Id: I8050414c30dfdb5df23ca79955adc5ba3a29d3f5
Reviewed-on: https://skia-review.googlesource.com/31140
Reviewed-by: Mike Reed <reed@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>

1 files changed, 0 insertions, 182 deletions

diff --git a/gm/lightingshader.cpp b/gm/lightingshader.cpp
deleted file mode 100644
index 95e30acda4..0000000000
--- a/gm/lightingshader.cpp
+++ /dev/null
@@ -1,182 +0,0 @@
-/*
- * Copyright 2015 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include "gm.h"
-#include "sk_tool_utils.h"
-#include "SkLightingShader.h"
-#include "SkNormalSource.h"
-#include "SkPoint3.h"
-#include "SkShader.h"
-
-// Create a hemispherical normal map
-static SkBitmap make_hemi_normalmap(int texSize) {
-    SkBitmap hemi;
-    hemi.allocN32Pixels(texSize, texSize);
-
-    sk_tool_utils::create_hemi_normal_map(&hemi, SkIRect::MakeWH(texSize, texSize));
-    return hemi;
-}
-
-// Create a truncated pyramid normal map
-static SkBitmap make_frustum_normalmap(int texSize) {
-    SkBitmap frustum;
-    frustum.allocN32Pixels(texSize, texSize);
-
-    sk_tool_utils::create_frustum_normal_map(&frustum, SkIRect::MakeWH(texSize, texSize));
-    return frustum;
-}
-
-// Create a tetrahedral normal map
-static SkBitmap make_tetra_normalmap(int texSize) {
-    SkBitmap tetra;
-    tetra.allocN32Pixels(texSize, texSize);
-
-    sk_tool_utils::create_tetra_normal_map(&tetra, SkIRect::MakeWH(texSize, texSize));
-    return tetra;
-}
-
-namespace skiagm {
-
-// This GM exercises lighting shaders.
-class LightingShaderGM : public GM {
-public:
-    LightingShaderGM() {
-        this->setBGColor(sk_tool_utils::color_to_565(0xFFCCCCCC));
-
-        SkLights::Builder builder;
-
-        builder.add(SkLights::Light::MakeDirectional(SkColor3f::Make(1.0f, 1.0f, 1.0f),
-                                                     SkVector3::Make(SK_ScalarRoot2Over2,
-                                                                     0.0f,
-                                                                     SK_ScalarRoot2Over2)));
-        builder.setAmbientLightColor(SkColor3f::Make(0.2f, 0.2f, 0.2f));
-
-        fLights = builder.finish();
-    }
-
-protected:
-    enum NormalMap {
-        kHemi_NormalMap,
-        kFrustum_NormalMap,
-        kTetra_NormalMap,
-
-        kLast_NormalMap = kTetra_NormalMap
-    };
-
-    static constexpr int kNormalMapCount = kLast_NormalMap+1;
-
-    SkString onShortName() override {
-        return SkString("lightingshader");
-    }
-
-    SkISize onISize() override {
-        return SkISize::Make(kGMSize, kGMSize);
-    }
-
-    void onOnceBeforeDraw() override {
-        fDiffuse = sk_tool_utils::create_checkerboard_bitmap(
-                                                        kTexSize, kTexSize,
-                                                        sk_tool_utils::color_to_565(0x0),
-                                                        sk_tool_utils::color_to_565(0xFF804020),
-                                                        8);
-
-        fNormalMaps[kHemi_NormalMap]    = make_hemi_normalmap(kTexSize);
-        fNormalMaps[kFrustum_NormalMap] = make_frustum_normalmap(kTexSize);
-        fNormalMaps[kTetra_NormalMap]   = make_tetra_normalmap(kTexSize);
-    }
-
-    void drawRect(SkCanvas* canvas, const SkRect& r, NormalMap mapType) {
-
-        SkRect bitmapBounds = SkRect::MakeIWH(fDiffuse.width(), fDiffuse.height());
-
-        SkMatrix matrix;
-        matrix.setRectToRect(bitmapBounds, r, SkMatrix::kFill_ScaleToFit);
-
-        const SkMatrix& ctm = canvas->getTotalMatrix();
-
-        SkPaint paint;
-        sk_sp<SkShader> diffuseShader = SkShader::MakeBitmapShader(fDiffuse,
-                SkShader::kClamp_TileMode, SkShader::kClamp_TileMode, &matrix);
-        sk_sp<SkShader> normalMap = SkShader::MakeBitmapShader(fNormalMaps[mapType],
-                SkShader::kClamp_TileMode, SkShader::kClamp_TileMode, &matrix);
-        sk_sp<SkNormalSource> normalSource = SkNormalSource::MakeFromNormalMap(std::move(normalMap),
-                                                                               ctm);
-        paint.setShader(SkLightingShader::Make(std::move(diffuseShader), std::move(normalSource),
-                                               fLights));
-
-        canvas->drawRect(r, paint);
-    }
-
-    void onDraw(SkCanvas* canvas) override {
-        SkMatrix m;
-        SkRect r;
-
-        {
-            r = SkRect::MakeWH(SkIntToScalar(kTexSize), SkIntToScalar(kTexSize));
-            this->drawRect(canvas, r, kHemi_NormalMap);
-
-            canvas->save();
-            m.setRotate(45.0f, r.centerX(), r.centerY());
-            m.postTranslate(kGMSize/2.0f - kTexSize/2.0f, 0.0f);
-            canvas->setMatrix(m);
-            this->drawRect(canvas, r, kHemi_NormalMap);
-            canvas->restore();
-        }
-
-        {
-            r.offset(kGMSize - kTexSize, 0);
-            this->drawRect(canvas, r, kFrustum_NormalMap);
-
-            canvas->save();
-            m.setRotate(45.0f, r.centerX(), r.centerY());
-            m.postTranslate(0.0f, kGMSize/2.0f - kTexSize/2.0f);
-            canvas->setMatrix(m);
-            this->drawRect(canvas, r, kFrustum_NormalMap);
-            canvas->restore();
-        }
-
-        {
-            r.offset(0, kGMSize - kTexSize);
-            this->drawRect(canvas, r, kTetra_NormalMap);
-
-            canvas->save();
-            m.setRotate(45.0f, r.centerX(), r.centerY());
-            m.postTranslate(-kGMSize/2.0f + kTexSize/2.0f, 0.0f);
-            canvas->setMatrix(m);
-            this->drawRect(canvas, r, kTetra_NormalMap);
-            canvas->restore();
-        }
-
-        {
-            r.offset(kTexSize - kGMSize, 0);
-            this->drawRect(canvas, r, kHemi_NormalMap);
-
-            canvas->save();
-            m.setRotate(45.0f, r.centerX(), r.centerY());
-            m.postTranslate(0.0f, -kGMSize/2.0f + kTexSize/2.0f);
-            canvas->setMatrix(m);
-            this->drawRect(canvas, r, kHemi_NormalMap);
-            canvas->restore();
-        }
-    }
-
-private:
-    static constexpr int kTexSize = 128;
-    static constexpr int kGMSize  = 512;
-
-    SkBitmap        fDiffuse;
-    SkBitmap        fNormalMaps[kNormalMapCount];
-
-    sk_sp<SkLights> fLights;
-
-    typedef GM INHERITED;
-};
-
-//////////////////////////////////////////////////////////////////////////////
-
-DEF_GM(return new LightingShaderGM;)
-}