drawbitmaprect.cpp File Reference

#include "gm/gm.h"
#include "include/core/SkBitmap.h"
#include "include/core/SkBlurTypes.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/SkMaskFilter.h"
#include "include/core/SkMatrix.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/SkSurface.h"
#include "include/core/SkTileMode.h"
#include "include/core/SkTypeface.h"
#include "include/core/SkTypes.h"
#include "include/effects/SkGradientShader.h"
#include "include/gpu/GrDirectContext.h"
#include "src/base/SkMathPriv.h"
#include "src/core/SkBlurMask.h"
#include "tools/GpuToolUtils.h"
#include "tools/ToolUtils.h"
#include "tools/fonts/FontToolUtils.h"

Go to the source code of this file.

Classes
class	DrawBitmapRectGM

Typedefs
typedef void	DrawRectRectProc(SkCanvas *, sk_sp< SkImage >, const SkBitmap &, const SkIRect &srcR, const SkRect &dstR, const SkSamplingOptions &, const SkPaint *)

Functions
static SkBitmap	make_chessbm (int w, int h)
static sk_sp< SkImage >	makebm (SkCanvas *origCanvas, SkBitmap *resultBM, int w, int h)
static void	bitmapproc (SkCanvas *canvas, sk_sp< SkImage > image, const SkBitmap &, const SkIRect &srcR, const SkRect &dstR, const SkSamplingOptions &sampling, const SkPaint *paint)
static void	bitmapsubsetproc (SkCanvas *canvas, sk_sp< SkImage > image, const SkBitmap &bm, const SkIRect &srcR, const SkRect &dstR, const SkSamplingOptions &sampling, const SkPaint *paint)
static void	imageproc (SkCanvas *canvas, sk_sp< SkImage > image, const SkBitmap &, const SkIRect &srcR, const SkRect &dstR, const SkSamplingOptions &sampling, const SkPaint *paint)
static void	imagesubsetproc (SkCanvas *canvas, sk_sp< SkImage > image, const SkBitmap &bm, const SkIRect &srcR, const SkRect &dstR, const SkSamplingOptions &sampling, const SkPaint *paint)

Variables
constexpr int	gSize = 1024
constexpr int	gBmpSize = 2048

Typedef Documentation

DrawRectRectProc

typedef void DrawRectRectProc(SkCanvas *, sk_sp< SkImage >, const SkBitmap &, const SkIRect &srcR, const SkRect &dstR, const SkSamplingOptions &, const SkPaint *)

Definition at line 161 of file drawbitmaprect.cpp.

Function Documentation

bitmapproc()

static void bitmapproc ( SkCanvas *  canvas, sk_sp< SkImage >  image, const SkBitmap &  , const SkIRect &  srcR, const SkRect &  dstR, const SkSamplingOptions &  sampling, const SkPaint *  paint  )

static

Definition at line 109 of file drawbitmaprect.cpp.

                                             {
    canvas->drawImageRect(image, SkRect::Make(srcR), dstR, sampling, paint,
                          SkCanvas::kStrict_SrcRectConstraint);
}

bitmapsubsetproc()

static void bitmapsubsetproc ( SkCanvas *  canvas, sk_sp< SkImage >  image, const SkBitmap &  bm, const SkIRect &  srcR, const SkRect &  dstR, const SkSamplingOptions &  sampling, const SkPaint *  paint  )

static

Definition at line 117 of file drawbitmaprect.cpp.

                                                   {
    if (!bm.bounds().contains(srcR)) {
        bitmapproc(canvas, std::move(image), bm, srcR, dstR, sampling, paint);
        return;
    }
 
    SkBitmap subset;
    if (bm.extractSubset(&subset, srcR)) {
        sk_sp<SkImage> subsetImg = ToolUtils::MakeTextureImage(canvas, subset.asImage());
        canvas->drawImageRect(subsetImg, dstR, sampling, paint);
    }
}

imageproc()

static void imageproc ( SkCanvas *  canvas, sk_sp< SkImage >  image, const SkBitmap &  , const SkIRect &  srcR, const SkRect &  dstR, const SkSamplingOptions &  sampling, const SkPaint *  paint  )

static

Definition at line 133 of file drawbitmaprect.cpp.

                                                                                                   {
    sk_sp<SkImage> tmp = ToolUtils::MakeTextureImage(canvas, std::move(image));
    canvas->drawImageRect(tmp, SkRect::Make(srcR), dstR, sampling, paint,
                          SkCanvas::kStrict_SrcRectConstraint);
}

imagesubsetproc()

static void imagesubsetproc ( SkCanvas *  canvas, sk_sp< SkImage >  image, const SkBitmap &  bm, const SkIRect &  srcR, const SkRect &  dstR, const SkSamplingOptions &  sampling, const SkPaint *  paint  )

static

Definition at line 140 of file drawbitmaprect.cpp.

                                                                                     {
    SkASSERT_RELEASE(image);
    if (!image->bounds().contains(srcR)) {
        imageproc(canvas, std::move(image), bm, srcR, dstR, sampling, paint);
        return;
    }
 
    auto direct = GrAsDirectContext(canvas->recordingContext());
    if (sk_sp<SkImage> subset = image->makeSubset(direct, srcR)) {
        canvas->drawImageRect(subset, dstR, sampling, paint);
        return;
    }
#if defined(SK_GRAPHITE)
    if (sk_sp<SkImage> subset = image->makeSubset(canvas->recorder(), srcR, {})) {
        canvas->drawImageRect(subset, dstR, sampling, paint);
    }
#endif
}

make_chessbm()

static SkBitmap make_chessbm ( int  w, int  h  )

static

Definition at line 38 of file drawbitmaprect.cpp.

                                           {
    SkBitmap bm;
    bm.allocN32Pixels(w, h);
 
    for (int y = 0; y < bm.height(); y++) {
        uint32_t* p = bm.getAddr32(0, y);
        for (int x = 0; x < bm.width(); x++) {
            p[x] = ((x + y) & 1) ? SK_ColorWHITE : SK_ColorBLACK;
        }
    }
    bm.setImmutable();
    return bm;
}

makebm()

static sk_sp< SkImage > makebm ( SkCanvas *  origCanvas, SkBitmap *  resultBM, int  w, int  h  )

static

Definition at line 53 of file drawbitmaprect.cpp.

                                                                                     {
    SkImageInfo info = SkImageInfo::MakeN32Premul(w, h);
 
    auto      surface(ToolUtils::makeSurface(origCanvas, info));
    SkCanvas* canvas = surface->getCanvas();
 
    canvas->clear(SK_ColorTRANSPARENT);
 
    SkScalar wScalar = SkIntToScalar(w);
    SkScalar hScalar = SkIntToScalar(h);
 
    SkPoint     pt = { wScalar / 2, hScalar / 2 };
 
    SkScalar    radius = 4 * std::max(wScalar, hScalar);
 
    SkColor     colors[] = { SK_ColorRED, SK_ColorYELLOW,
                             SK_ColorGREEN, SK_ColorMAGENTA,
                             SK_ColorBLUE, SK_ColorCYAN,
                             SK_ColorRED};
 
    SkScalar    pos[] = {0,
                         SK_Scalar1 / 6,
                         2 * SK_Scalar1 / 6,
                         3 * SK_Scalar1 / 6,
                         4 * SK_Scalar1 / 6,
                         5 * SK_Scalar1 / 6,
                         SK_Scalar1};
 
    SkPaint     paint;
    SkRect rect = SkRect::MakeWH(wScalar, hScalar);
    SkMatrix mat = SkMatrix::I();
    for (int i = 0; i < 4; ++i) {
        paint.setShader(SkGradientShader::MakeRadial(
                        pt, radius,
                        colors, pos,
                        std::size(colors),
                        SkTileMode::kRepeat,
                        0, &mat));
        canvas->drawRect(rect, paint);
        rect.inset(wScalar / 8, hScalar / 8);
        mat.postScale(SK_Scalar1 / 4, SK_Scalar1 / 4);
    }
 
    auto image = surface->makeImageSnapshot();
 
    SkBitmap tempBM;
 
    image->asLegacyBitmap(&tempBM);
 
    // Let backends know we won't change this, so they don't have to deep copy it defensively.
    tempBM.setImmutable();
    *resultBM = tempBM;
 
    return image;
}

Variable Documentation

gBmpSize

constexpr int gBmpSize = 2048

constexpr

Definition at line 166 of file drawbitmaprect.cpp.

gSize

constexpr int gSize = 1024

constexpr

Definition at line 165 of file drawbitmaprect.cpp.