e5ff3cefe0
SkColorMatrixFilter. Implement missing SkColorMatrixFilter::setMatrix() and setArray() functions (were in .h, just not implemented). Add a gm for color matrix filters. Review URL: http://codereview.appspot.com/5500044/ git-svn-id: http://skia.googlecode.com/svn/trunk@2909 2bbb7eff-a529-9590-31e7-b0007b416f81
105 lines
2.8 KiB
C++
105 lines
2.8 KiB
C++
/*
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* Copyright 2011 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 "gm.h"
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#include "SkColorMatrixFilter.h"
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#define WIDTH 500
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#define HEIGHT 500
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namespace skiagm {
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class ColorMatrixGM : public GM {
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public:
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ColorMatrixGM() {
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this->setBGColor(0xFF808080);
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fBitmap = createBitmap(64, 64);
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}
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protected:
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virtual SkString onShortName() {
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return SkString("colormatrix");
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}
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virtual SkISize onISize() {
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return make_isize(WIDTH, HEIGHT);
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}
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SkBitmap createBitmap(int width, int height) {
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SkBitmap bm;
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bm.setConfig(SkBitmap::kARGB_8888_Config, width, height);
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bm.allocPixels();
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SkCanvas canvas(bm);
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for (int y = 0; y < height; ++y) {
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for (int x = 0; x < width; ++x) {
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SkPaint paint;
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paint.setColor(SkColorSetARGB(255, x * 255 / width, y * 255 / height, 0));
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canvas.drawRect(SkRect::MakeXYWH(x, y, 1, 1), paint);
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}
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}
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return bm;
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}
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virtual void onDraw(SkCanvas* canvas) {
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SkPaint paint;
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SkColorMatrix matrix;
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SkColorMatrixFilter* filter = new SkColorMatrixFilter();
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paint.setColorFilter(filter)->unref();
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matrix.setIdentity();
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filter->setMatrix(matrix);
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canvas->drawBitmap(fBitmap, 0, 0, &paint);
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matrix.setRotate(SkColorMatrix::kR_Axis, 90);
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filter->setMatrix(matrix);
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canvas->drawBitmap(fBitmap, 80, 0, &paint);
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matrix.setRotate(SkColorMatrix::kG_Axis, 90);
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filter->setMatrix(matrix);
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canvas->drawBitmap(fBitmap, 160, 0, &paint);
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matrix.setRotate(SkColorMatrix::kB_Axis, 90);
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filter->setMatrix(matrix);
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canvas->drawBitmap(fBitmap, 240, 0, &paint);
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matrix.setSaturation(SkFloatToScalar(0.0f));
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filter->setMatrix(matrix);
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canvas->drawBitmap(fBitmap, 0, 80, &paint);
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matrix.setSaturation(SkFloatToScalar(0.5f));
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filter->setMatrix(matrix);
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canvas->drawBitmap(fBitmap, 80, 80, &paint);
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matrix.setSaturation(SkFloatToScalar(1.0f));
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filter->setMatrix(matrix);
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canvas->drawBitmap(fBitmap, 160, 80, &paint);
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matrix.setSaturation(SkFloatToScalar(2.0f));
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filter->setMatrix(matrix);
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canvas->drawBitmap(fBitmap, 240, 80, &paint);
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matrix.setRGB2YUV();
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filter->setMatrix(matrix);
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canvas->drawBitmap(fBitmap, 0, 160, &paint);
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matrix.setYUV2RGB();
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filter->setMatrix(matrix);
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canvas->drawBitmap(fBitmap, 80, 160, &paint);
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}
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private:
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SkBitmap fBitmap;
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typedef GM INHERITED;
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};
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//////////////////////////////////////////////////////////////////////////////
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static GM* MyFactory(void*) { return new ColorMatrixGM; }
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static GMRegistry reg(MyFactory);
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}
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