* 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/gm.h"
#include "include/core/SkBitmap.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkColor.h"
#include "include/core/SkFilterQuality.h"
#include "include/core/SkFont.h"
#include "include/core/SkFontStyle.h"
#include "include/core/SkMatrix.h"
#include "include/core/SkPaint.h"
#include "include/core/SkRect.h"
#include "include/core/SkScalar.h"
#include "include/core/SkSize.h"
#include "include/core/SkString.h"
#include "include/core/SkTypeface.h"
#include "include/core/SkTypes.h"
#include "tools/Resources.h"
#include "tools/ToolUtils.h"
static void setTypeface(SkFont* font, const char name[], SkFontStyle style) {
font->setTypeface(ToolUtils::create_portable_typeface(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_cell(SkCanvas* canvas, const SkBitmap& bm, const SkMatrix& mat, SkScalar dx,
SkFilterQuality lvl) {
SkPaint paint;
paint.setFilterQuality(lvl);
SkAutoCanvasRestore acr(canvas, true);
canvas->translate(dx, 0);
canvas->concat(mat);
canvas->drawBitmap(bm, 0, 0, &paint);
}
static void draw_row(SkCanvas* canvas, const SkBitmap& bm, const SkMatrix& mat, SkScalar dx) {
draw_cell(canvas, bm, mat, 0 * dx, kNone_SkFilterQuality);
draw_cell(canvas, bm, mat, 1 * dx, kLow_SkFilterQuality);
draw_cell(canvas, bm, mat, 2 * dx, kMedium_SkFilterQuality);
draw_cell(canvas, bm, mat, 3 * dx, kHigh_SkFilterQuality);
}
class FilterBitmapGM : public skiagm::GM {
void onOnceBeforeDraw() override {
this->setBGColor(0xFFDDDDDD);
this->makeBitmap();
SkScalar cx = SkScalarHalf(fBM.width());
SkScalar cy = SkScalarHalf(fBM.height());
SkScalar scale = this->getScale();
fMatrix[0].setScale(scale, scale);
fMatrix[1].setRotate(30, cx, cy); fMatrix[1].postScale(scale, scale);
fMatrix[2].setScale(0.7f, 1.05f);
}
protected:
SkBitmap fBM;
SkMatrix fMatrix[3];
SkISize onISize() override { return SkISize::Make(1024, 768); }
virtual void makeBitmap() = 0;
virtual SkScalar getScale() = 0;
void onDraw(SkCanvas* canvas) 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);
}
}
};
class FilterBitmapTextGM: public FilterBitmapGM {
public:
FilterBitmapTextGM(float textSize) : fTextSize(textSize) {}
private:
SkString onShortName() override {
return SkStringPrintf("filterbitmap_text_%.2fpt", fTextSize);
}
const float fTextSize;
SkScalar getScale() override {
return 32.f/fTextSize;
}
void makeBitmap() override {
fBM.allocN32Pixels(int(fTextSize * 8), int(fTextSize * 6));
SkCanvas canvas(fBM);
canvas.drawColor(SK_ColorWHITE);
SkPaint paint;
SkFont font;
font.setSize(fTextSize);
font.setSubpixel(true);
setTypeface(&font, "serif", SkFontStyle::Normal());
canvas.drawString("Hamburgefons", fTextSize/2, 1.2f*fTextSize, font, paint);
setTypeface(&font, "serif", SkFontStyle::Bold());
canvas.drawString("Hamburgefons", fTextSize/2, 2.4f*fTextSize, font, paint);
setTypeface(&font, "serif", SkFontStyle::Italic());
canvas.drawString("Hamburgefons", fTextSize/2, 3.6f*fTextSize, font, paint);
setTypeface(&font, "serif", SkFontStyle::BoldItalic());
canvas.drawString("Hamburgefons", fTextSize/2, 4.8f*fTextSize, font, paint);
}
};
class FilterBitmapCheckerboardGM: public FilterBitmapGM {
SkString onShortName() override {
return SkStringPrintf("filterbitmap_checkerboard_%d_%d%s",
fSize, fNumChecks, fConvertToG8 ? "_g8" : "");
}
public:
FilterBitmapCheckerboardGM(int size, int num_checks, bool convertToG8 = false)
: fSize(size), fNumChecks(num_checks), fConvertToG8(convertToG8) {}
protected:
int fSize;
int fNumChecks;
SkScalar getScale() override {
return 192.f/fSize;
}
void makeBitmap() override {
fBM.allocN32Pixels(fSize, fSize);
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;
}
}
}
if (fConvertToG8) {
SkBitmap tmp;
ToolUtils::copy_to_g8(&tmp, fBM);
fBM = tmp;
}
}
private:
const bool fConvertToG8;
typedef FilterBitmapGM INHERITED;
};
class FilterBitmapImageGM: public FilterBitmapGM {
const char* fFilename;
int fSize;
SkString onShortName() override {
return SkStringPrintf("filterbitmap_image_%s%s", fFilename, fConvertToG8 ? "_g8" : "");
}
public:
FilterBitmapImageGM(const char filename[], bool convertToG8 = false)
: fFilename(filename), fConvertToG8(convertToG8) {}
protected:
SkScalar getScale() override {
return 192.f/fSize;
}
void makeBitmap() override {
SkString resource = SkStringPrintf("images/%s", fFilename);
if (!GetResourceAsBitmap(resource.c_str(), &fBM)) {
fBM.allocN32Pixels(1, 1);
fBM.eraseARGB(255, 255, 0 , 0);
}
fSize = fBM.height();
if (fConvertToG8) {
SkBitmap tmp;
ToolUtils::copy_to_g8(&tmp, fBM);
fBM = tmp;
}
}
private:
const bool fConvertToG8;
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(32,32, true); )
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_64.png", true); )
DEF_GM( return new FilterBitmapImageGM("mandrill_128.png"); )
DEF_GM( return new FilterBitmapImageGM("mandrill_256.png"); )
DEF_GM( return new FilterBitmapImageGM("mandrill_512.png"); )
DEF_GM( return new FilterBitmapImageGM("color_wheel.png"); )
