drawatlascolor.cpp File Reference

#include "gm/gm.h"
#include "include/core/SkBlendMode.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkColor.h"
#include "include/core/SkFont.h"
#include "include/core/SkImage.h"
#include "include/core/SkImageInfo.h"
#include "include/core/SkPaint.h"
#include "include/core/SkRSXform.h"
#include "include/core/SkRect.h"
#include "include/core/SkRefCnt.h"
#include "include/core/SkScalar.h"
#include "include/core/SkSize.h"
#include "include/core/SkString.h"
#include "include/core/SkSurface.h"
#include "include/core/SkTypeface.h"
#include "include/core/SkTypes.h"
#include "tools/ToolUtils.h"
#include "tools/fonts/FontToolUtils.h"

Go to the source code of this file.

Classes
class	DrawAtlasColorsGM

Functions
static sk_sp< SkImage >	make_atlas (SkCanvas *caller, int atlasSize)

Function Documentation

make_atlas()

static sk_sp< SkImage > make_atlas ( SkCanvas *  caller, int  atlasSize  )

static

Definition at line 33 of file drawatlascolor.cpp.

                                                                  {
    const int kBlockSize = atlasSize/2;
 
    SkImageInfo info = SkImageInfo::MakeN32Premul(atlasSize, atlasSize);
    auto        surface(ToolUtils::makeSurface(caller, info));
    SkCanvas* canvas = surface->getCanvas();
 
    SkPaint paint;
    paint.setBlendMode(SkBlendMode::kSrc);
 
    paint.setColor(SK_ColorWHITE);
    SkRect r = SkRect::MakeXYWH(0, 0,
                                SkIntToScalar(kBlockSize), SkIntToScalar(kBlockSize));
    canvas->drawRect(r, paint);
 
    paint.setColor(SK_ColorRED);
    r = SkRect::MakeXYWH(SkIntToScalar(kBlockSize), 0,
                         SkIntToScalar(kBlockSize), SkIntToScalar(kBlockSize));
    canvas->drawRect(r, paint);
 
    paint.setColor(SK_ColorGREEN);
    r = SkRect::MakeXYWH(0, SkIntToScalar(kBlockSize),
                         SkIntToScalar(kBlockSize), SkIntToScalar(kBlockSize));
    canvas->drawRect(r, paint);
 
    paint.setColor(SK_ColorTRANSPARENT);
    r = SkRect::MakeXYWH(SkIntToScalar(kBlockSize), SkIntToScalar(kBlockSize),
                         SkIntToScalar(kBlockSize), SkIntToScalar(kBlockSize));
    canvas->drawRect(r, paint);
 
    return surface->makeImageSnapshot();
}