Remove dead code in gpu/.

These files are not referenced by any .gyp file in Skia or Chromium.
ninja -C out/Debug everything still builds.

BUG=skia:
R=bsalomon@google.com, mtklein@google.com

Author: mtklein@chromium.org

Review URL: https://codereview.chromium.org/218553003

git-svn-id: http://skia.googlecode.com/svn/trunk@14034 2bbb7eff-a529-9590-31e7-b0007b416f81

4 files changed, 0 insertions, 287 deletions

diff --git a/src/gpu/FlingState.cpp b/src/gpu/FlingState.cpp
deleted file mode 100644
index f0db5016bd..0000000000
--- a/src/gpu/FlingState.cpp
+++ /dev/null
@@ -1,125 +0,0 @@
-
-/*
- * Copyright 2010 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-
-
-#include "FlingState.h"
-#include "SkMatrix.h"
-#include "SkTime.h"
-
-#define DISCRETIZE_TRANSLATE_TO_AVOID_FLICKER   true
-
-static const float MAX_FLING_SPEED = 1500;
-
-static float pin_max_fling(float speed) {
-    if (speed > MAX_FLING_SPEED) {
-        speed = MAX_FLING_SPEED;
-    }
-    return speed;
-}
-
-static double getseconds() {
-    return SkTime::GetMSecs() * 0.001;
-}
-
-// returns +1 or -1, depending on the sign of x
-// returns +1 if x is zero
-static SkScalar SkScalarSign(SkScalar x) {
-    SkScalar sign = SK_Scalar1;
-    if (x < 0) {
-        sign = -sign;
-    }
-    return sign;
-}
-
-static void unit_axis_align(SkVector* unit) {
-    const SkScalar TOLERANCE = SkDoubleToScalar(0.15);
-    if (SkScalarAbs(unit->fX) < TOLERANCE) {
-        unit->fX = 0;
-        unit->fY = SkScalarSign(unit->fY);
-    } else if (SkScalarAbs(unit->fY) < TOLERANCE) {
-        unit->fX = SkScalarSign(unit->fX);
-        unit->fY = 0;
-    }
-}
-
-void FlingState::reset(float sx, float sy) {
-    fActive = true;
-    fDirection.set(sx, sy);
-    fSpeed0 = SkPoint::Normalize(&fDirection);
-    fSpeed0 = pin_max_fling(fSpeed0);
-    fTime0 = getseconds();
-
-    unit_axis_align(&fDirection);
-//    printf("---- speed %g dir %g %g\n", fSpeed0, fDirection.fX, fDirection.fY);
-}
-
-bool FlingState::evaluateMatrix(SkMatrix* matrix) {
-    if (!fActive) {
-        return false;
-    }
-
-    const float t =  getseconds() - fTime0;
-    const float MIN_SPEED = 2;
-    const float K0 = 5.0;
-    const float K1 = 0.02;
-    const float speed = fSpeed0 * (sk_float_exp(- K0 * t) - K1);
-    if (speed <= MIN_SPEED) {
-        fActive = false;
-        return false;
-    }
-    float dist = (fSpeed0 - speed) / K0;
-
-//    printf("---- time %g speed %g dist %g\n", t, speed, dist);
-    float tx = fDirection.fX * dist;
-    float ty = fDirection.fY * dist;
-    if (DISCRETIZE_TRANSLATE_TO_AVOID_FLICKER) {
-        tx = sk_float_round2int(tx);
-        ty = sk_float_round2int(ty);
-    }
-    matrix->setTranslate(tx, ty);
-//    printf("---- evaluate (%g %g)\n", tx, ty);
-
-    return true;
-}
-
-////////////////////////////////////////
-
-GrAnimateFloat::GrAnimateFloat() : fTime0(0) {}
-
-void GrAnimateFloat::start(float v0, float v1, float duration) {
-    fValue0 = v0;
-    fValue1 = v1;
-    fDuration = duration;
-    if (duration > 0) {
-        fTime0 = SkTime::GetMSecs();
-        if (!fTime0) {
-            fTime0 = 1;  // time0 is our sentinel
-        }
-    } else {
-        fTime0 = 0;
-    }
-}
-
-float GrAnimateFloat::evaluate() {
-    if (!fTime0) {
-        return fValue1;
-    }
-
-    double elapsed = (SkTime::GetMSecs() - fTime0) * 0.001;
-    if (elapsed >= fDuration) {
-        fTime0 = 0;
-        return fValue1;
-    }
-
-    double t = elapsed / fDuration;
-    if (true) {
-        t = (3 - 2 * t) * t * t;
-    }
-    return fValue0 + t * (fValue1 - fValue0);
-}
diff --git a/src/gpu/GrAddPathRenderers_none.cpp b/src/gpu/GrAddPathRenderers_none.cpp
deleted file mode 100644
index 02da710724..0000000000
--- a/src/gpu/GrAddPathRenderers_none.cpp
+++ /dev/null
@@ -1,15 +0,0 @@
-
-/*
- * Copyright 2011 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-
-#include "GrPathRenderer.h"
-
-
-void GrPathRenderer::AddPathRenderers(GrContext*,
-                                      GrPathRendererChain::UsageFlags,
-                                      GrPathRendererChain*) {}
diff --git a/src/gpu/GrMemory.cpp b/src/gpu/GrMemory.cpp
deleted file mode 100644
index bf96b0bc31..0000000000
--- a/src/gpu/GrMemory.cpp
+++ /dev/null
@@ -1,26 +0,0 @@
-
-/*
- * Copyright 2010 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-
-
-#include <stdlib.h>
-#include "GrTypes.h"
-
-void* GrMalloc(size_t bytes) {
-    void* ptr = ::malloc(bytes);
-    if (NULL == ptr) {
-        ::exit(-1);
-    }
-    return ptr;
-}
-
-void GrFree(void* ptr) {
-    if (ptr) {
-        ::free(ptr);
-    }
-}
diff --git a/src/gpu/GrRectanizer_fifo.cpp b/src/gpu/GrRectanizer_fifo.cpp
deleted file mode 100644
index 9dd808618b..0000000000
--- a/src/gpu/GrRectanizer_fifo.cpp
+++ /dev/null
@@ -1,121 +0,0 @@
-
-/*
- * Copyright 2010 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-
-
-#include "GrRectanizer.h"
-#include "GrTBSearch.h"
-
-#define MIN_HEIGHT_POW2     2
-
-class GrRectanizerFIFO : public GrRectanizer {
-public:
-    GrRectanizerFIFO(int w, int h) : GrRectanizer(w, h) {
-        fNextStripY = 0;
-        fAreaSoFar = 0;
-        sk_bzero(fRows, sizeof(fRows));
-    }
-
-    virtual ~GrRectanizerFIFO() {
-    }
-
-    virtual bool addRect(int w, int h, GrIPoint16* loc);
-
-    virtual float percentFull() const {
-        return fAreaSoFar / ((float)this->width() * this->height());
-    }
-
-    virtual int stripToPurge(int height) const { return -1; }
-    virtual void purgeStripAtY(int yCoord) { }
-
-    ///////////////////////////////////////////////////////////////////////////
-
-    struct Row {
-        GrIPoint16  fLoc;
-        int         fRowHeight;
-
-        bool canAddWidth(int width, int containerWidth) const {
-            return fLoc.fX + width <= containerWidth;
-        }
-    };
-
-    Row fRows[16];
-
-    static int HeightToRowIndex(int height) {
-        SkASSERT(height >= MIN_HEIGHT_POW2);
-        return 32 - Gr_clz(height - 1);
-    }
-
-    int fNextStripY;
-    int32_t fAreaSoFar;
-
-    bool canAddStrip(int height) const {
-        return fNextStripY + height <= this->height();
-    }
-
-    void initRow(Row* row, int rowHeight) {
-        row->fLoc.set(0, fNextStripY);
-        row->fRowHeight = rowHeight;
-        fNextStripY += rowHeight;
-    }
-};
-
-bool GrRectanizerFIFO::addRect(int width, int height, GrIPoint16* loc) {
-    if ((unsigned)width > (unsigned)this->width() ||
-        (unsigned)height > (unsigned)this->height()) {
-        return false;
-    }
-
-    int32_t area = width * height;
-
-    /*
-     We use bsearch, but there may be more than one row with the same height,
-     so we actually search for height-1, which can only be a pow2 itself if
-     height == 2. Thus we set a minimum height.
-     */
-    height = GrNextPow2(height);
-    if (height < MIN_HEIGHT_POW2) {
-        height = MIN_HEIGHT_POW2;
-    }
-
-    Row* row = &fRows[HeightToRowIndex(height)];
-    SkASSERT(row->fRowHeight == 0 || row->fRowHeight == height);
-
-    if (0 == row->fRowHeight) {
-        if (!this->canAddStrip(height)) {
-            return false;
-        }
-        this->initRow(row, height);
-    } else {
-        if (!row->canAddWidth(width, this->width())) {
-            if (!this->canAddStrip(height)) {
-                return false;
-            }
-            // that row is now "full", so retarget our Row record for
-            // another one
-            this->initRow(row, height);
-        }
-    }
-
-    SkASSERT(row->fRowHeight == height);
-    SkASSERT(row->canAddWidth(width, this->width()));
-    *loc = row->fLoc;
-    row->fLoc.fX += width;
-
-    SkASSERT(row->fLoc.fX <= this->width());
-    SkASSERT(row->fLoc.fY <= this->height());
-    SkASSERT(fNextStripY <= this->height());
-    fAreaSoFar += area;
-    return true;
-}
-
-///////////////////////////////////////////////////////////////////////////////
-
-GrRectanizer* GrRectanizer::Factory(int width, int height) {
-    return SkNEW_ARGS(GrRectanizerFIFO, (width, height));
-}