72c9faab45
This fixes every case where virtual and SK_OVERRIDE were on the same line, which should be the bulk of cases. We'll have to manually clean up the rest over time unless I level up in regexes. for f in (find . -type f); perl -p -i -e 's/virtual (.*)SK_OVERRIDE/\1SK_OVERRIDE/g' $f; end BUG=skia: Review URL: https://codereview.chromium.org/806653007
151 lines
4.5 KiB
C++
151 lines
4.5 KiB
C++
/*
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* Copyright 2013 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "SkCanvas.h"
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#include "SkColor.h"
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#include "SkGradientShader.h"
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#include "SkMatrix.h"
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#include "SkPaint.h"
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#include "SkPoint.h"
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#include "SkRect.h"
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#include "SkRefCnt.h"
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#include "SkScalar.h"
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#include "SkSize.h"
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#include "SkString.h"
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#include "gm.h"
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static const SkColor gColors[] = {
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SK_ColorRED, SK_ColorYELLOW
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};
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// These annoying defines are necessary, because the only other alternative
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// is to use SkIntToScalar(...) everywhere.
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static const SkScalar sZero = 0;
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static const SkScalar sHalf = SK_ScalarHalf;
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static const SkScalar sOne = SK_Scalar1;
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// These arrays define the gradient stop points
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// as x1, y1, x2, y2 per gradient to draw.
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static const SkPoint linearPts[][2] = {
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{{sZero, sZero}, {sOne, sZero}},
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{{sZero, sZero}, {sZero, sOne}},
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{{sOne, sZero}, {sZero, sZero}},
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{{sZero, sOne}, {sZero, sZero}},
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{{sZero, sZero}, {sOne, sOne}},
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{{sOne, sOne}, {sZero, sZero}},
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{{sOne, sZero}, {sZero, sOne}},
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{{sZero, sOne}, {sOne, sZero}}
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};
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static const SkPoint radialPts[][2] = {
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{{sZero, sHalf}, {sOne, sHalf}},
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{{sHalf, sZero}, {sHalf, sOne}},
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{{sOne, sHalf}, {sZero, sHalf}},
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{{sHalf, sOne}, {sHalf, sZero}},
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{{sZero, sZero}, {sOne, sOne}},
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{{sOne, sOne}, {sZero, sZero}},
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{{sOne, sZero}, {sZero, sOne}},
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{{sZero, sOne}, {sOne, sZero}}
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};
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// These define the pixels allocated to each gradient image.
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static const SkScalar TESTGRID_X = SkIntToScalar(200);
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static const SkScalar TESTGRID_Y = SkIntToScalar(200);
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static const int IMAGES_X = 4; // number of images per row
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static SkShader* make_linear_gradient(const SkPoint pts[2], const SkMatrix& localMatrix) {
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return SkGradientShader::CreateLinear(pts, gColors, NULL, SK_ARRAY_COUNT(gColors),
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SkShader::kClamp_TileMode, 0, &localMatrix);
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}
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static SkShader* make_radial_gradient(const SkPoint pts[2], const SkMatrix& localMatrix) {
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SkPoint center;
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center.set(SkScalarAve(pts[0].fX, pts[1].fX),
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SkScalarAve(pts[0].fY, pts[1].fY));
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float radius = (center - pts[0]).length();
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return SkGradientShader::CreateRadial(center, radius, gColors, NULL, SK_ARRAY_COUNT(gColors),
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SkShader::kClamp_TileMode, 0, &localMatrix);
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}
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static void draw_gradients(SkCanvas* canvas,
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SkShader* (*makeShader)(const SkPoint[2], const SkMatrix&),
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const SkPoint ptsArray[][2], int numImages) {
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// Use some nice prime numbers for the rectangle and matrix with
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// different scaling along the x and y axes (which is the bug this
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// test addresses, where incorrect order of operations mixed up the axes)
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SkRect rectGrad = {
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SkIntToScalar(43), SkIntToScalar(61),
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SkIntToScalar(181), SkIntToScalar(167) };
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SkMatrix shaderMat;
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shaderMat.setScale(rectGrad.width(), rectGrad.height());
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shaderMat.postTranslate(rectGrad.left(), rectGrad.top());
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canvas->save();
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for (int i = 0; i < numImages; i++) {
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// Advance line downwards if necessary.
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if (i % IMAGES_X == 0 && i != 0) {
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canvas->restore();
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canvas->translate(0, TESTGRID_Y);
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canvas->save();
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}
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// Setup shader and draw.
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SkAutoTUnref<SkShader> shader(makeShader(*ptsArray, shaderMat));
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SkPaint paint;
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paint.setShader(shader);
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canvas->drawRect(rectGrad, paint);
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// Advance to next position.
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canvas->translate(TESTGRID_X, 0);
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ptsArray++;
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}
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canvas->restore();
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}
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namespace skiagm {
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class GradientMatrixGM : public GM {
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public:
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GradientMatrixGM() {
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this->setBGColor(0xFFDDDDDD);
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}
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protected:
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uint32_t onGetFlags() const SK_OVERRIDE {
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return kSkipTiled_Flag;
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}
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SkString onShortName() SK_OVERRIDE {
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return SkString("gradient_matrix");
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}
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SkISize onISize() SK_OVERRIDE {
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return SkISize::Make(800, 800);
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}
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void onDraw(SkCanvas* canvas) SK_OVERRIDE {
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draw_gradients(canvas, &make_linear_gradient,
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linearPts, SK_ARRAY_COUNT(linearPts));
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canvas->translate(0, TESTGRID_Y);
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draw_gradients(canvas, &make_radial_gradient,
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radialPts, SK_ARRAY_COUNT(radialPts));
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}
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private:
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typedef GM INHERITED;
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};
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DEF_GM( return new GradientMatrixGM; )
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}
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