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/*
* 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 "gm.h"
#include "SkGradientShader.h"
#include "SkTypeface.h"
#include "SkImageDecoder.h"
#include "SkStream.h"
static void setTypeface(SkPaint* paint, const char name[], SkTypeface::Style style) {
SkSafeUnref(paint->setTypeface(SkTypeface::CreateFromName(name, style)));
}
static SkSize computeSize(const SkBitmap& bm, const SkMatrix& mat) {
SkRect bounds = SkRect::MakeWH(SkIntToScalar(bm.width()),
SkIntToScalar(bm.height()));
mat.mapRect(&bounds);
return SkSize::Make(bounds.width(), bounds.height());
}
static void draw_row(SkCanvas* canvas, const SkBitmap& bm, const SkMatrix& mat, SkScalar dx) {
SkPaint paint;
SkAutoCanvasRestore acr(canvas, true);
canvas->drawBitmapMatrix(bm, mat, &paint);
paint.setFilterLevel(SkPaint::kLow_FilterLevel);
canvas->translate(dx, 0);
canvas->drawBitmapMatrix(bm, mat, &paint);
paint.setFilterLevel(SkPaint::kMedium_FilterLevel);
canvas->translate(dx, 0);
canvas->drawBitmapMatrix(bm, mat, &paint);
paint.setFilterLevel(SkPaint::kHigh_FilterLevel);
canvas->translate(dx, 0);
canvas->drawBitmapMatrix(bm, mat, &paint);
}
class FilterBitmapGM : public skiagm::GM {
void onOnceBeforeDraw() {
this->makeBitmap();
SkScalar cx = SkScalarHalf(fBM.width());
SkScalar cy = SkScalarHalf(fBM.height());
SkScalar scale = this->getScale();
// these two matrices use a scale factor configured by the subclass
fMatrix[0].setScale(scale, scale);
fMatrix[1].setRotate(30, cx, cy); fMatrix[1].postScale(scale, scale);
// up/down scaling mix
fMatrix[2].setScale(0.7f, 1.05f);
}
public:
SkBitmap fBM;
SkMatrix fMatrix[3];
SkString fName;
FilterBitmapGM()
{
this->setBGColor(0xFFDDDDDD);
}
protected:
virtual SkString onShortName() SK_OVERRIDE {
return fName;
}
virtual SkISize onISize() SK_OVERRIDE {
return SkISize::Make(1024, 768);
}
virtual void makeBitmap() = 0;
virtual SkScalar getScale() = 0;
virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
canvas->translate(10, 10);
for (size_t i = 0; i < SK_ARRAY_COUNT(fMatrix); ++i) {
SkSize size = computeSize(fBM, fMatrix[i]);
size.fWidth += 20;
size.fHeight += 20;
draw_row(canvas, fBM, fMatrix[i], size.fWidth);
canvas->translate(0, size.fHeight);
}
}
private:
typedef skiagm::GM INHERITED;
};
class FilterBitmapTextGM: public FilterBitmapGM {
public:
FilterBitmapTextGM(float textSize)
: fTextSize(textSize)
{
fName.printf("filterbitmap_text_%.2fpt", fTextSize);
}
protected:
float fTextSize;
SkScalar getScale() SK_OVERRIDE {
return 32.f/fTextSize;
}
void makeBitmap() SK_OVERRIDE {
fBM.setConfig(SkBitmap::kARGB_8888_Config, int(fTextSize * 8), int(fTextSize * 6));
fBM.allocPixels();
SkCanvas canvas(fBM);
canvas.drawColor(SK_ColorWHITE);
SkPaint paint;
paint.setAntiAlias(true);
paint.setSubpixelText(true);
paint.setTextSize(fTextSize);
setTypeface(&paint, "Times", SkTypeface::kNormal);
canvas.drawText("Hamburgefons", 12, fTextSize/2, 1.2f*fTextSize, paint);
setTypeface(&paint, "Times", SkTypeface::kBold);
canvas.drawText("Hamburgefons", 12, fTextSize/2, 2.4f*fTextSize, paint);
setTypeface(&paint, "Times", SkTypeface::kItalic);
canvas.drawText("Hamburgefons", 12, fTextSize/2, 3.6f*fTextSize, paint);
setTypeface(&paint, "Times", SkTypeface::kBoldItalic);
canvas.drawText("Hamburgefons", 12, fTextSize/2, 4.8f*fTextSize, paint);
}
private:
typedef FilterBitmapGM INHERITED;
};
class FilterBitmapCheckerboardGM: public FilterBitmapGM {
public:
FilterBitmapCheckerboardGM(int size, int num_checks)
: fSize(size), fNumChecks(num_checks)
{
fName.printf("filterbitmap_checkerboard_%d_%d", fSize, fNumChecks);
}
protected:
int fSize;
int fNumChecks;
SkScalar getScale() SK_OVERRIDE {
return 192.f/fSize;
}
void makeBitmap() SK_OVERRIDE {
fBM.setConfig(SkBitmap::kARGB_8888_Config, fSize, fSize);
fBM.allocPixels();
SkAutoLockPixels lock(fBM);
for (int y = 0; y < fSize; y ++) {
for (int x = 0; x < fSize; x ++) {
SkPMColor* s = fBM.getAddr32(x, y);
int cx = (x * fNumChecks) / fSize;
int cy = (y * fNumChecks) / fSize;
if ((cx+cy)%2) {
*s = 0xFFFFFFFF;
} else {
*s = 0xFF000000;
}
}
}
}
private:
typedef FilterBitmapGM INHERITED;
};
class FilterBitmapImageGM: public FilterBitmapGM {
public:
FilterBitmapImageGM(const char filename[])
: fFilename(filename)
{
fName.printf("filterbitmap_image_%s", filename);
}
protected:
SkString fFilename;
int fSize;
SkScalar getScale() SK_OVERRIDE {
return 192.f/fSize;
}
void makeBitmap() SK_OVERRIDE {
SkString path(skiagm::GM::gResourcePath);
path.append("/");
path.append(fFilename);
SkImageDecoder *codec = NULL;
SkFILEStream stream(path.c_str());
if (stream.isValid()) {
codec = SkImageDecoder::Factory(&stream);
}
if (codec) {
stream.rewind();
codec->decode(&stream, &fBM, SkBitmap::kARGB_8888_Config,
SkImageDecoder::kDecodePixels_Mode);
SkDELETE(codec);
} else {
fBM.setConfig(SkBitmap::kARGB_8888_Config, 1, 1);
fBM.allocPixels();
*(fBM.getAddr32(0,0)) = 0xFF0000FF; // red == bad
}
fSize = fBM.height();
}
private:
typedef FilterBitmapGM INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
DEF_GM( return new FilterBitmapTextGM(3); )
DEF_GM( return new FilterBitmapTextGM(7); )
DEF_GM( return new FilterBitmapTextGM(10); )
DEF_GM( return new FilterBitmapCheckerboardGM(4,4); )
DEF_GM( return new FilterBitmapCheckerboardGM(32,32); )
DEF_GM( return new FilterBitmapCheckerboardGM(32,8); )
DEF_GM( return new FilterBitmapCheckerboardGM(32,2); )
DEF_GM( return new FilterBitmapCheckerboardGM(192,192); )
DEF_GM( return new FilterBitmapImageGM("mandrill_16.png"); )
DEF_GM( return new FilterBitmapImageGM("mandrill_32.png"); )
DEF_GM( return new FilterBitmapImageGM("mandrill_64.png"); )
DEF_GM( return new FilterBitmapImageGM("mandrill_128.png"); )
DEF_GM( return new FilterBitmapImageGM("mandrill_256.png"); )
DEF_GM( return new FilterBitmapImageGM("mandrill_512.png"); )
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