tilemodes_scaled.cpp File Reference

#include "gm/gm.h"
#include "include/core/SkBitmap.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkColor.h"
#include "include/core/SkFont.h"
#include "include/core/SkImageInfo.h"
#include "include/core/SkPaint.h"
#include "include/core/SkPoint.h"
#include "include/core/SkRect.h"
#include "include/core/SkRefCnt.h"
#include "include/core/SkScalar.h"
#include "include/core/SkShader.h"
#include "include/core/SkSize.h"
#include "include/core/SkString.h"
#include "include/core/SkTileMode.h"
#include "include/core/SkTypeface.h"
#include "include/core/SkTypes.h"
#include "include/effects/SkGradientShader.h"
#include "include/utils/SkTextUtils.h"
#include "tools/ToolUtils.h"
#include "tools/fonts/FontToolUtils.h"

Go to the source code of this file.

Classes
class	ScaledTilingGM
class	ScaledTiling2GM

Typedefs
typedef sk_sp< SkShader >(*	ShaderProc) (SkTileMode, SkTileMode)

Functions
static void	makebm (SkBitmap *bm, SkColorType ct, int w, int h)
static void	setup (SkPaint *paint, const SkBitmap &bm, const SkSamplingOptions &sampling, SkTileMode tmx, SkTileMode tmy)
static sk_sp< SkShader >	make_bm (SkTileMode tx, SkTileMode ty)
static sk_sp< SkShader >	make_grad (SkTileMode tx, SkTileMode ty)

Variables
const SkSamplingOptions	gSamplings []
constexpr SkColorType	gColorTypes []
constexpr int	gWidth = 32
constexpr int	gHeight = 32

Typedef Documentation

ShaderProc

typedef sk_sp< SkShader >(* ShaderProc) (SkTileMode, SkTileMode)

Definition at line 195 of file tilemodes_scaled.cpp.

Function Documentation

make_bm()

static sk_sp< SkShader > make_bm ( SkTileMode  tx, SkTileMode  ty  )

static

Definition at line 170 of file tilemodes_scaled.cpp.

                                                             {
    SkBitmap bm;
    makebm(&bm, kN32_SkColorType, gWidth, gHeight);
    return bm.makeShader(tx, ty, SkSamplingOptions());
}

make_grad()

static sk_sp< SkShader > make_grad ( SkTileMode  tx, SkTileMode  ty  )

static

Definition at line 176 of file tilemodes_scaled.cpp.

                                                               {
    SkPoint pts[] = { { 0, 0 }, { SkIntToScalar(gWidth), SkIntToScalar(gHeight)} };
    SkPoint center = { SkIntToScalar(gWidth)/2, SkIntToScalar(gHeight)/2 };
    SkScalar rad = SkIntToScalar(gWidth)/2;
    SkColor  colors[] = {0xFFFF0000, ToolUtils::color_to_565(0xFF0044FF)};
 
    int index = (int)ty;
    switch (index % 3) {
        case 0:
            return SkGradientShader::MakeLinear(pts, colors, nullptr, std::size(colors), tx);
        case 1:
            return SkGradientShader::MakeRadial(center, rad, colors, nullptr, std::size(colors), tx);
        case 2:
            return SkGradientShader::MakeSweep(center.fX, center.fY, colors, nullptr, std::size(colors));
    }
 
    return nullptr;
}

makebm()

static void makebm ( SkBitmap *  bm, SkColorType  ct, int  w, int  h  )

static

Definition at line 38 of file tilemodes_scaled.cpp.

                                                               {
    bm->allocPixels(SkImageInfo::Make(w, h, ct, kPremul_SkAlphaType));
    bm->eraseColor(SK_ColorTRANSPARENT);
 
    SkCanvas    canvas(*bm);
    SkPoint     pts[] = { { 0, 0 }, { SkIntToScalar(w), SkIntToScalar(h)} };
    SkColor     colors[] = { SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE };
    SkScalar    pos[] = { 0, SK_Scalar1/2, SK_Scalar1 };
    SkPaint     paint;
 
    paint.setDither(true);
    paint.setShader(SkGradientShader::MakeLinear(pts, colors, pos,
                std::size(colors), SkTileMode::kClamp));
    canvas.drawPaint(paint);
}

setup()

static void setup ( SkPaint *  paint, const SkBitmap &  bm, const SkSamplingOptions &  sampling, SkTileMode  tmx, SkTileMode  tmy  )

static

Definition at line 54 of file tilemodes_scaled.cpp.

                                                  {
    paint->setShader(bm.makeShader(tmx, tmy, sampling));
}

Variable Documentation

gColorTypes

constexpr SkColorType gColorTypes[]

constexpr

Initial value:

= {
    kN32_SkColorType,
    kRGB_565_SkColorType,
}

Definition at line 59 of file tilemodes_scaled.cpp.

                                      {
    kN32_SkColorType,
    kRGB_565_SkColorType,
};

gHeight

constexpr int gHeight = 32

constexpr

Definition at line 168 of file tilemodes_scaled.cpp.

gSamplings

const SkSamplingOptions gSamplings[]

Initial value:

= {
    SkSamplingOptions(SkFilterMode::kNearest),
    SkSamplingOptions(SkFilterMode::kLinear),
    SkSamplingOptions(SkFilterMode::kLinear, SkMipmapMode::kLinear),
    SkSamplingOptions(SkCubicResampler::Mitchell()),
    SkSamplingOptions::Aniso(16),
}

Definition at line 30 of file tilemodes_scaled.cpp.

                                       {
    SkSamplingOptions(SkFilterMode::kNearest),
    SkSamplingOptions(SkFilterMode::kLinear),
    SkSamplingOptions(SkFilterMode::kLinear, SkMipmapMode::kLinear),
    SkSamplingOptions(SkCubicResampler::Mitchell()),
    SkSamplingOptions::Aniso(16),
};

gWidth

constexpr int gWidth = 32

constexpr

Definition at line 167 of file tilemodes_scaled.cpp.