#include "include/core/SkAlphaType.h"
#include "include/core/SkBitmap.h"
#include "include/core/SkBlendMode.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkClipOp.h"
#include "include/core/SkColor.h"
#include "include/core/SkColorPriv.h"
#include "include/core/SkColorSpace.h"
#include "include/core/SkColorType.h"
#include "include/core/SkImage.h"
#include "include/core/SkImageInfo.h"
#include "include/core/SkMatrix.h"
#include "include/core/SkPaint.h"
#include "include/core/SkPixmap.h"
#include "include/core/SkRect.h"
#include "include/core/SkRefCnt.h"
#include "include/core/SkSamplingOptions.h"
#include "include/core/SkScalar.h"
#include "include/core/SkSurface.h"
#include "include/core/SkTypes.h"
#include "include/private/SkColorData.h"
#include "include/private/base/SkAlign.h"
#include "include/private/base/SkCPUTypes.h"
#include "include/private/base/SkSafe32.h"
#include "src/base/SkHalf.h"
#include "src/base/SkMathPriv.h"
#include "src/core/SkImageInfoPriv.h"
#include "tests/Test.h"
#include <cstdint>
#include <cstring>
#include <initializer_list>
#include <memory>
#include <string>

Enumerations
enum class	TightRowBytes : bool { kNo , kYes }

Functions
static SkPMColor	get_src_color (int x, int y)

static SkPMColor	get_dst_bmp_init_color (int x, int y, int w)

static SkPMColor	convert_to_pmcolor (SkColorType ct, SkAlphaType at, const uint32_t addr, bool doUnpremul)

static sk_sp< SkImage >	make_src_image ()

static void	fill_src_canvas (SkCanvas *canvas)

static void	fill_dst_bmp_with_init_data (SkBitmap *bitmap)

static bool	check_read_pixel (SkPMColor a, SkPMColor b, bool didPremulConversion)

static bool	check_read (skiatest::Reporter *reporter, const SkBitmap &bitmap, int x, int y, bool checkSurfacePixels, bool checkBitmapPixels, const SkImageInfo &surfaceInfo)

static void	init_bitmap (SkBitmap *bitmap, const SkIRect &rect, TightRowBytes tightRB, SkColorType ct, SkAlphaType at)

bool	read_should_succeed (const SkIRect &srcRect, const SkImageInfo &dstInfo, const SkImageInfo &srcInfo)

static void	test_readpixels (skiatest::Reporter *reporter, const sk_sp< SkSurface > &surface, const SkImageInfo &surfaceInfo)

	DEF_TEST (ReadPixels, reporter)

static const void *	five_reference_pixels (SkColorType colorType)

static void	test_conversion (skiatest::Reporter *r, const SkImageInfo &dstInfo, const SkImageInfo &srcInfo)

	DEF_TEST (ReadPixels_ValidConversion, reporter)

	DEF_TEST (ReadPixels_InvalidRowBytes, reporter)

Variables
static const int	DEV_W = 100

static const int	DEV_H = 100

static const SkIRect	DEV_RECT = SkIRect::MakeWH(DEV_W, DEV_H)

static const SkRect	DEV_RECT_S

struct {

SkColorType fColorType

SkAlphaType fAlphaType

}	gReadPixelsConfigs []

const SkIRect	gReadPixelsTestRects []

static const uint32_t	kNumPixels = 5

static const uint32_t	rgba [kNumPixels]

static const uint32_t	bgra [kNumPixels]

static const uint16_t	rgb565 [kNumPixels]

static const uint16_t	rgba4444 [kNumPixels] = { 0xF00F, 0x0F0F, 0x00FF, 0xFFFF, 0x000F }

static const uint64_t	kRed = (uint64_t) SK_Half1 << 0

static const uint64_t	kGreen = (uint64_t) SK_Half1 << 16

static const uint64_t	kBlue = (uint64_t) SK_Half1 << 32

static const uint64_t	kAlpha = (uint64_t) SK_Half1 << 48

static const uint64_t	f16 [kNumPixels]

static const uint8_t	alpha8 [kNumPixels] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }

static const uint8_t	gray8 [kNumPixels] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }

Enumeration Type Documentation

◆ TightRowBytes

enum class TightRowBytes : bool

strong

Enumerator
kNo
kYes

Definition at line 274 of file ReadPixelsTest.cpp.

274: bool { kNo, kYes };

TightRowBytes::kYes

@ kYes

TightRowBytes::kNo

@ kNo

Function Documentation

◆ check_read()

static bool check_read	(	skiatest::Reporter *	reporter,
		const SkBitmap &	bitmap,
		int	x,
		int	y,
		bool	checkSurfacePixels,
		bool	checkBitmapPixels,
		const SkImageInfo &	surfaceInfo
	)

static

Definition at line 188 of file ReadPixelsTest.cpp.

                                                       {
    SkAlphaType bmpAT = bitmap.alphaType();
    SkColorType bmpCT = bitmap.colorType();
    SkASSERT(!bitmap.isNull());
    SkASSERT(checkSurfacePixels || checkBitmapPixels);
 
    int bw = bitmap.width();
    int bh = bitmap.height();
 
    SkIRect srcRect = SkIRect::MakeXYWH(x, y, bw, bh);
    SkIRect clippedSrcRect = DEV_RECT;
    if (!clippedSrcRect.intersect(srcRect)) {
        clippedSrcRect.setEmpty();
    }
    if (kAlpha_8_SkColorType == bmpCT) {
        for (int by = 0; by < bh; ++by) {
            for (int bx = 0; bx < bw; ++bx) {
                int devx = bx + srcRect.fLeft;
                int devy = by + srcRect.fTop;
                const uint8_t* alpha = bitmap.getAddr8(bx, by);
 
                if (clippedSrcRect.contains(devx, devy)) {
                    if (checkSurfacePixels) {
                        uint8_t surfaceAlpha = (surfaceInfo.alphaType() == kOpaque_SkAlphaType)
                                                       ? 0xFF
                                                       : SkGetPackedA32(get_src_color(devx, devy));
                        if (surfaceAlpha != *alpha) {
                            ERRORF(reporter,
                                   "Expected readback alpha (%d, %d) value 0x%02x, got 0x%02x. ",
                                   bx, by, surfaceAlpha, *alpha);
                            return false;
                        }
                    }
                } else if (checkBitmapPixels) {
                    uint32_t origDstAlpha = SkGetPackedA32(get_dst_bmp_init_color(bx, by, bw));
                    if (origDstAlpha != *alpha) {
                        ERRORF(reporter, "Expected clipped out area of readback to be unchanged. "
                            "Expected 0x%02x, got 0x%02x", origDstAlpha, *alpha);
                        return false;
                    }
                }
            }
        }
        return true;
    }
    for (int by = 0; by < bh; ++by) {
        for (int bx = 0; bx < bw; ++bx) {
            int devx = bx + srcRect.fLeft;
            int devy = by + srcRect.fTop;
 
            const uint32_t* pixel = bitmap.getAddr32(bx, by);
 
            if (clippedSrcRect.contains(devx, devy)) {
                if (checkSurfacePixels) {
                    SkPMColor surfacePMColor = get_src_color(devx, devy);
                    if (SkColorTypeIsAlphaOnly(surfaceInfo.colorType())) {
                        surfacePMColor &= 0xFF000000;
                    }
                    if (kOpaque_SkAlphaType == surfaceInfo.alphaType() || kOpaque_SkAlphaType == bmpAT) {
                        surfacePMColor |= 0xFF000000;
                    }
                    bool didPremul;
                    SkPMColor pmPixel = convert_to_pmcolor(bmpCT, bmpAT, pixel, &didPremul);
                    if (!check_read_pixel(pmPixel, surfacePMColor, didPremul)) {
                        ERRORF(reporter,
                               "Expected readback pixel (%d, %d) value 0x%08x, got 0x%08x. "
                               "Readback was unpremul: %d",
                               bx, by, surfacePMColor, pmPixel, didPremul);
                        return false;
                    }
                }
            } else if (checkBitmapPixels) {
                uint32_t origDstPixel = get_dst_bmp_init_color(bx, by, bw);
                if (origDstPixel != *pixel) {
                    ERRORF(reporter, "Expected clipped out area of readback to be unchanged. "
                           "Expected 0x%08x, got 0x%08x", origDstPixel, *pixel);
                    return false;
                }
            }
        }
    }
    return true;
}

◆ check_read_pixel()

static bool check_read_pixel	(	SkPMColor	a,
		SkPMColor	b,
		bool	didPremulConversion
	)

static

Definition at line 165 of file ReadPixelsTest.cpp.

                                                                                 {
    if (!didPremulConversion) {
        return a == b;
    }
    int32_t aA = static_cast<int32_t>(SkGetPackedA32(a));
    int32_t aR = static_cast<int32_t>(SkGetPackedR32(a));
    int32_t aG = static_cast<int32_t>(SkGetPackedG32(a));
    int32_t aB = SkGetPackedB32(a);
 
    int32_t bA = static_cast<int32_t>(SkGetPackedA32(b));
    int32_t bR = static_cast<int32_t>(SkGetPackedR32(b));
    int32_t bG = static_cast<int32_t>(SkGetPackedG32(b));
    int32_t bB = static_cast<int32_t>(SkGetPackedB32(b));
 
    return aA == bA &&
           SkAbs32(aR - bR) <= 1 &&
           SkAbs32(aG - bG) <= 1 &&
           SkAbs32(aB - bB) <= 1;
}

◆ convert_to_pmcolor()

static SkPMColor convert_to_pmcolor	(	SkColorType	ct,
		SkAlphaType	at,
		const uint32_t *	addr,
		bool *	doUnpremul
	)

static

Definition at line 87 of file ReadPixelsTest.cpp.

                                                      {
    *doUnpremul = (kUnpremul_SkAlphaType == at);
 
    const uint8_t* c = reinterpret_cast<const uint8_t*>(addr);
    U8CPU a,r,g,b;
    switch (ct) {
        case kBGRA_8888_SkColorType:
            b = static_cast<U8CPU>(c[0]);
            g = static_cast<U8CPU>(c[1]);
            r = static_cast<U8CPU>(c[2]);
            a = static_cast<U8CPU>(c[3]);
            break;
        case kRGB_888x_SkColorType:  // fallthrough
        case kRGBA_8888_SkColorType:
            r = static_cast<U8CPU>(c[0]);
            g = static_cast<U8CPU>(c[1]);
            b = static_cast<U8CPU>(c[2]);
            // We set this even for kRGB_888x because our caller will validate that it is 0xff.
            a = static_cast<U8CPU>(c[3]);
            break;
        default:
            SkDEBUGFAIL("Unexpected colortype");
            return 0;
    }
 
    if (*doUnpremul) {
        r = SkMulDiv255Ceiling(r, a);
        g = SkMulDiv255Ceiling(g, a);
        b = SkMulDiv255Ceiling(b, a);
    }
    return SkPackARGB32(a, r, g, b);
}

◆ DEF_TEST() [1/3]

DEF_TEST	(	ReadPixels	,
		reporter
	)

Definition at line 395 of file ReadPixelsTest.cpp.

                               {
    const SkImageInfo info = SkImageInfo::MakeN32Premul(DEV_W, DEV_H);
    auto surface(SkSurfaces::Raster(info));
    test_readpixels(reporter, surface, info);
}

◆ DEF_TEST() [2/3]

DEF_TEST	(	ReadPixels_InvalidRowBytes	,
		reporter
	)

Definition at line 539 of file ReadPixelsTest.cpp.

                                               {
    auto srcII = SkImageInfo::Make({10, 10}, kRGBA_8888_SkColorType, kPremul_SkAlphaType);
    auto surf = SkSurfaces::Raster(srcII);
    for (int ct = 0; ct < kLastEnum_SkColorType + 1; ++ct) {
        auto colorType = static_cast<SkColorType>(ct);
        size_t bpp = SkColorTypeBytesPerPixel(colorType);
        if (bpp <= 1) {
            continue;
        }
        auto dstII = srcII.makeColorType(colorType);
        size_t badRowBytes = (surf->width() + 1)*bpp - 1;
        auto storage = std::make_unique<char[]>(badRowBytes*surf->height());
        REPORTER_ASSERT(reporter, !surf->readPixels(dstII, storage.get(), badRowBytes, 0, 0));
    }
}

◆ DEF_TEST() [3/3]

DEF_TEST	(	ReadPixels_ValidConversion	,
		reporter
	)

Definition at line 498 of file ReadPixelsTest.cpp.

                                               {
    const SkColorType kColorTypes[] = {
            kUnknown_SkColorType,
            kAlpha_8_SkColorType,
            kRGB_565_SkColorType,
            kARGB_4444_SkColorType,
            kRGBA_8888_SkColorType,
            kBGRA_8888_SkColorType,
            kGray_8_SkColorType,
            kRGBA_F16_SkColorType,
    };
 
    const SkAlphaType kAlphaTypes[] = {
            kUnknown_SkAlphaType,
            kOpaque_SkAlphaType,
            kPremul_SkAlphaType,
            kUnpremul_SkAlphaType,
    };
 
    const sk_sp<SkColorSpace> kColorSpaces[] = {
            nullptr,
            SkColorSpace::MakeSRGB(),
    };
 
    for (SkColorType dstCT : kColorTypes) {
        for (SkAlphaType dstAT : kAlphaTypes) {
            for (const sk_sp<SkColorSpace>& dstCS : kColorSpaces) {
                for (SkColorType srcCT : kColorTypes) {
                    for (SkAlphaType srcAT : kAlphaTypes) {
                        for (const sk_sp<SkColorSpace>& srcCS : kColorSpaces) {
                            test_conversion(reporter,
                                            SkImageInfo::Make(kNumPixels, 1, dstCT, dstAT, dstCS),
                                            SkImageInfo::Make(kNumPixels, 1, srcCT, srcAT, srcCS));
                        }
                    }
                }
            }
        }
    }
}

◆ fill_dst_bmp_with_init_data()

static void fill_dst_bmp_with_init_data ( SkBitmap * bitmap )

static

Definition at line 147 of file ReadPixelsTest.cpp.

                                                          {
    int w = bitmap->width();
    int h = bitmap->height();
    intptr_t pixels = reinterpret_cast<intptr_t>(bitmap->getPixels());
    for (int y = 0; y < h; ++y) {
        for (int x = 0; x < w; ++x) {
            SkPMColor initColor = get_dst_bmp_init_color(x, y, w);
            if (kAlpha_8_SkColorType == bitmap->colorType()) {
                uint8_t* alpha = reinterpret_cast<uint8_t*>(pixels + y * bitmap->rowBytes() + x);
                *alpha = SkGetPackedA32(initColor);
            } else {
                SkPMColor* pixel = reinterpret_cast<SkPMColor*>(pixels + y * bitmap->rowBytes() + x * bitmap->bytesPerPixel());
                *pixel = initColor;
            }
        }
    }
}

◆ fill_src_canvas()

static void fill_src_canvas ( SkCanvas * canvas )

static

Definition at line 137 of file ReadPixelsTest.cpp.

                                              {
    canvas->save();
    canvas->setMatrix(SkMatrix::I());
    canvas->clipRect(DEV_RECT_S, SkClipOp::kIntersect);
    SkPaint paint;
    paint.setBlendMode(SkBlendMode::kSrc);
    canvas->drawImage(make_src_image(), 0, 0, SkSamplingOptions(), &paint);
    canvas->restore();
}

◆ five_reference_pixels()

static const void * five_reference_pixels ( SkColorType colorType )

static

Definition at line 431 of file ReadPixelsTest.cpp.

                                                                {
    switch (colorType) {
        case kUnknown_SkColorType:
            return nullptr;
        case kAlpha_8_SkColorType:
            return alpha8;
        case kRGB_565_SkColorType:
            return rgb565;
        case kARGB_4444_SkColorType:
            return rgba4444;
        case kRGBA_8888_SkColorType:
            return rgba;
        case kBGRA_8888_SkColorType:
            return bgra;
        case kGray_8_SkColorType:
            return gray8;
        case kRGBA_F16_SkColorType:
            return f16;
        default:
            return nullptr;
    }
 
    SkASSERT(false);
    return nullptr;
}

◆ get_dst_bmp_init_color()

static SkPMColor get_dst_bmp_init_color	(	int	x,
		int	y,
		int	w
	)

static

Definition at line 77 of file ReadPixelsTest.cpp.

                                                             {
    int n = y * w + x;
 
    U8CPU b = n & 0xff;
    U8CPU g = (n >> 8) & 0xff;
    U8CPU r = (n >> 16) & 0xff;
    return SkPackARGB32(0xff, r, g , b);
}

◆ get_src_color()

static SkPMColor get_src_color	(	int	x,
		int	y
	)

static

Definition at line 48 of file ReadPixelsTest.cpp.

                                             {
    SkASSERT(x >= 0 && x < DEV_W);
    SkASSERT(y >= 0 && y < DEV_H);
 
    U8CPU r = x;
    U8CPU g = y;
    U8CPU b = 0xc;
 
    U8CPU a = 0xff;
    switch ((x+y) % 5) {
        case 0:
            a = 0xff;
            break;
        case 1:
            a = 0x80;
            break;
        case 2:
            a = 0xCC;
            break;
        case 4:
            a = 0x01;
            break;
        case 3:
            a = 0x00;
            break;
    }
    return SkPremultiplyARGBInline(a, r, g, b);
}

◆ init_bitmap()

static void init_bitmap	(	SkBitmap *	bitmap,
		const SkIRect &	rect,
		TightRowBytes	tightRB,
		SkColorType	ct,
		SkAlphaType	at
	)

static

Definition at line 276 of file ReadPixelsTest.cpp.

                                                        {
    SkImageInfo info = SkImageInfo::Make(rect.size(), ct, at);
    size_t rowBytes = 0;
    if (tightRB == TightRowBytes::kNo) {
        rowBytes = SkAlign4((info.width() + 16) * info.bytesPerPixel());
    }
    bitmap->allocPixels(info, rowBytes);
}

◆ make_src_image()

static sk_sp< SkImage > make_src_image ( )

static

Definition at line 121 of file ReadPixelsTest.cpp.

                                       {
    static SkBitmap bmp;
    if (bmp.isNull()) {
        bmp.allocN32Pixels(DEV_W, DEV_H);
        intptr_t pixels = reinterpret_cast<intptr_t>(bmp.getPixels());
        for (int y = 0; y < DEV_H; ++y) {
            for (int x = 0; x < DEV_W; ++x) {
                SkPMColor* pixel = reinterpret_cast<SkPMColor*>(pixels + y * bmp.rowBytes() + x * bmp.bytesPerPixel());
                *pixel = get_src_color(x, y);
            }
        }
        bmp.setImmutable();
    }
    return bmp.asImage();
}

◆ read_should_succeed()

bool read_should_succeed	(	const SkIRect &	srcRect,
		const SkImageInfo &	dstInfo,
		const SkImageInfo &	srcInfo
	)

Definition at line 344 of file ReadPixelsTest.cpp.

                                                     {
    return SkIRect::Intersects(srcRect, DEV_RECT) && SkImageInfoValidConversion(dstInfo, srcInfo);
}

◆ test_conversion()

static void test_conversion	(	skiatest::Reporter *	r,
		const SkImageInfo &	dstInfo,
		const SkImageInfo &	srcInfo
	)

static

Definition at line 457 of file ReadPixelsTest.cpp.

                                                        {
    if (!SkImageInfoIsValid(srcInfo)) {
        return;
    }
 
    const void* srcPixels = five_reference_pixels(srcInfo.colorType());
    SkPixmap srcPixmap(srcInfo, srcPixels, srcInfo.minRowBytes());
    sk_sp<SkImage> src = SkImages::RasterFromPixmap(srcPixmap, nullptr, nullptr);
    REPORTER_ASSERT(r, src);
 
    // Enough space for 5 pixels when color type is F16, more than enough space in other cases.
    uint64_t dstPixels[kNumPixels];
    SkPixmap dstPixmap(dstInfo, dstPixels, dstInfo.minRowBytes());
    bool success = src->readPixels(nullptr, dstPixmap, 0, 0);
    REPORTER_ASSERT(r, success == SkImageInfoValidConversion(dstInfo, srcInfo));
 
    if (success) {
        if (kGray_8_SkColorType == srcInfo.colorType() &&
            kGray_8_SkColorType != dstInfo.colorType()) {
            // TODO: test (r,g,b) == (gray,gray,gray)?
            return;
        }
 
        if (kGray_8_SkColorType == dstInfo.colorType() &&
            kGray_8_SkColorType != srcInfo.colorType()) {
            // TODO: test gray = luminance?
            return;
        }
 
        if (kAlpha_8_SkColorType == srcInfo.colorType() &&
            kAlpha_8_SkColorType != dstInfo.colorType()) {
            // TODO: test output = black with this alpha?
            return;
        }
 
        REPORTER_ASSERT(r, 0 == memcmp(dstPixels, five_reference_pixels(dstInfo.colorType()),
                                       kNumPixels * SkColorTypeBytesPerPixel(dstInfo.colorType())));
    }
}

◆ test_readpixels()

static void test_readpixels	(	skiatest::Reporter *	reporter,
		const sk_sp< SkSurface > &	surface,
		const SkImageInfo &	surfaceInfo
	)

static

Definition at line 349 of file ReadPixelsTest.cpp.

                                                            {
    SkCanvas* canvas = surface->getCanvas();
    fill_src_canvas(canvas);
    for (size_t rect = 0; rect < std::size(gReadPixelsTestRects); ++rect) {
        const SkIRect& srcRect = gReadPixelsTestRects[rect];
        for (auto tightRB : {TightRowBytes::kYes, TightRowBytes::kNo}) {
            for (size_t c = 0; c < std::size(gReadPixelsConfigs); ++c) {
                SkBitmap bmp;
                init_bitmap(&bmp, srcRect, tightRB, gReadPixelsConfigs[c].fColorType,
                            gReadPixelsConfigs[c].fAlphaType);
 
                // if the bitmap has pixels allocated before the readPixels,
                // note that and fill them with pattern
                bool startsWithPixels = !bmp.isNull();
                if (startsWithPixels) {
                    fill_dst_bmp_with_init_data(&bmp);
                }
                uint32_t idBefore = surface->generationID();
                bool success = surface->readPixels(bmp, srcRect.fLeft, srcRect.fTop);
                uint32_t idAfter = surface->generationID();
 
                // we expect to succeed when the read isn't fully clipped out and the infos are
                // compatible.
                bool expectSuccess = read_should_succeed(srcRect, bmp.info(), surfaceInfo);
                // determine whether we expected the read to succeed.
                REPORTER_ASSERT(reporter, expectSuccess == success,
                                "Read succeed=%d unexpectedly, src ct/at: %d/%d, dst ct/at: %d/%d",
                                success, surfaceInfo.colorType(), surfaceInfo.alphaType(),
                                bmp.info().colorType(), bmp.info().alphaType());
                // read pixels should never change the gen id
                REPORTER_ASSERT(reporter, idBefore == idAfter);
 
                if (success || startsWithPixels) {
                    check_read(reporter, bmp, srcRect.fLeft, srcRect.fTop, success,
                               startsWithPixels, surfaceInfo);
                } else {
                    // if we had no pixels beforehand and the readPixels
                    // failed then our bitmap should still not have pixels
                    REPORTER_ASSERT(reporter, bmp.isNull());
                }
            }
        }
    }
}

Variable Documentation

◆ alpha8

const uint8_t alpha8[kNumPixels] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }

static

Definition at line 428 of file ReadPixelsTest.cpp.

428{ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };

◆ bgra

const uint32_t bgra[kNumPixels]

static

Initial value:

= {
        0xFFFF0000, 0xFF00FF00, 0xFF0000FF, 0xFFFFFFFF, 0xFF000000
}

Definition at line 411 of file ReadPixelsTest.cpp.

                                         {
        0xFFFF0000, 0xFF00FF00, 0xFF0000FF, 0xFFFFFFFF, 0xFF000000
};

◆ DEV_H

const int DEV_H = 100

static

Definition at line 43 of file ReadPixelsTest.cpp.

◆ DEV_RECT

const SkIRect DEV_RECT = SkIRect::MakeWH(DEV_W, DEV_H)

static

Definition at line 44 of file ReadPixelsTest.cpp.

◆ DEV_RECT_S

const SkRect DEV_RECT_S

static

Initial value:

= SkRect::MakeWH(DEV_W * SK_Scalar1,

DEV_H * SK_Scalar1)

SK_Scalar1

#define SK_Scalar1

Definition SkScalar.h:18

SkRect::MakeWH

static constexpr SkRect MakeWH(float w, float h)

Definition SkRect.h:609

Definition at line 45 of file ReadPixelsTest.cpp.

◆ DEV_W

const int DEV_W = 100

static

Definition at line 43 of file ReadPixelsTest.cpp.

◆ f16

const uint64_t f16[kNumPixels]

static

Initial value:

= {
        kAlpha | kRed, kAlpha | kGreen, kAlpha | kBlue, kAlpha | kBlue | kGreen | kRed, kAlpha
}

Definition at line 424 of file ReadPixelsTest.cpp.

                                        {
        kAlpha | kRed, kAlpha | kGreen, kAlpha | kBlue, kAlpha | kBlue | kGreen | kRed, kAlpha
};

◆ fAlphaType

SkAlphaType fAlphaType

Definition at line 288 of file ReadPixelsTest.cpp.

◆ fColorType

SkColorType fColorType

Definition at line 287 of file ReadPixelsTest.cpp.

◆ gray8

const uint8_t gray8[kNumPixels] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }

static

Definition at line 429 of file ReadPixelsTest.cpp.

429{ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };

◆ [struct]

const struct { ... } gReadPixelsConfigs[]

Initial value:

= {
        {kRGBA_8888_SkColorType, kPremul_SkAlphaType},
        {kRGBA_8888_SkColorType, kUnpremul_SkAlphaType},
        {kRGB_888x_SkColorType, kOpaque_SkAlphaType},
        {kBGRA_8888_SkColorType, kPremul_SkAlphaType},
        {kBGRA_8888_SkColorType, kUnpremul_SkAlphaType},
        {kAlpha_8_SkColorType, kPremul_SkAlphaType},
}

◆ gReadPixelsTestRects

const SkIRect gReadPixelsTestRects[]

Definition at line 297 of file ReadPixelsTest.cpp.

                                       {
    // entire thing
    DEV_RECT,
    // larger on all sides
    SkIRect::MakeLTRB(-10, -10, DEV_W + 10, DEV_H + 10),
    // fully contained
    SkIRect::MakeLTRB(DEV_W / 4, DEV_H / 4, 3 * DEV_W / 4, 3 * DEV_H / 4),
    // outside top left
    SkIRect::MakeLTRB(-10, -10, -1, -1),
    // touching top left corner
    SkIRect::MakeLTRB(-10, -10, 0, 0),
    // overlapping top left corner
    SkIRect::MakeLTRB(-10, -10, DEV_W / 4, DEV_H / 4),
    // overlapping top left and top right corners
    SkIRect::MakeLTRB(-10, -10, DEV_W  + 10, DEV_H / 4),
    // touching entire top edge
    SkIRect::MakeLTRB(-10, -10, DEV_W  + 10, 0),
    // overlapping top right corner
    SkIRect::MakeLTRB(3 * DEV_W / 4, -10, DEV_W  + 10, DEV_H / 4),
    // contained in x, overlapping top edge
    SkIRect::MakeLTRB(DEV_W / 4, -10, 3 * DEV_W  / 4, DEV_H / 4),
    // outside top right corner
    SkIRect::MakeLTRB(DEV_W + 1, -10, DEV_W + 10, -1),
    // touching top right corner
    SkIRect::MakeLTRB(DEV_W, -10, DEV_W + 10, 0),
    // overlapping top left and bottom left corners
    SkIRect::MakeLTRB(-10, -10, DEV_W / 4, DEV_H + 10),
    // touching entire left edge
    SkIRect::MakeLTRB(-10, -10, 0, DEV_H + 10),
    // overlapping bottom left corner
    SkIRect::MakeLTRB(-10, 3 * DEV_H / 4, DEV_W / 4, DEV_H + 10),
    // contained in y, overlapping left edge
    SkIRect::MakeLTRB(-10, DEV_H / 4, DEV_W / 4, 3 * DEV_H / 4),
    // outside bottom left corner
    SkIRect::MakeLTRB(-10, DEV_H + 1, -1, DEV_H + 10),
    // touching bottom left corner
    SkIRect::MakeLTRB(-10, DEV_H, 0, DEV_H + 10),
    // overlapping bottom left and bottom right corners
    SkIRect::MakeLTRB(-10, 3 * DEV_H / 4, DEV_W + 10, DEV_H + 10),
    // touching entire left edge
    SkIRect::MakeLTRB(0, DEV_H, DEV_W, DEV_H + 10),
    // overlapping bottom right corner
    SkIRect::MakeLTRB(3 * DEV_W / 4, 3 * DEV_H / 4, DEV_W + 10, DEV_H + 10),
    // overlapping top right and bottom right corners
    SkIRect::MakeLTRB(3 * DEV_W / 4, -10, DEV_W + 10, DEV_H + 10),
};

◆ kAlpha

const uint64_t kAlpha = (uint64_t) SK_Half1 << 48

static

Definition at line 423 of file ReadPixelsTest.cpp.

◆ kBlue

const uint64_t kBlue = (uint64_t) SK_Half1 << 32

static

Definition at line 422 of file ReadPixelsTest.cpp.

◆ kGreen

const uint64_t kGreen = (uint64_t) SK_Half1 << 16

static

Definition at line 421 of file ReadPixelsTest.cpp.

◆ kNumPixels

const uint32_t kNumPixels = 5

static

Definition at line 403 of file ReadPixelsTest.cpp.

◆ kRed

const uint64_t kRed = (uint64_t) SK_Half1 << 0

static

Definition at line 420 of file ReadPixelsTest.cpp.

◆ rgb565

const uint16_t rgb565[kNumPixels]

static

Initial value:

= {
        SK_R16_MASK_IN_PLACE, SK_G16_MASK_IN_PLACE, SK_B16_MASK_IN_PLACE, 0xFFFF, 0x0
}

Definition at line 414 of file ReadPixelsTest.cpp.

                                           {
        SK_R16_MASK_IN_PLACE, SK_G16_MASK_IN_PLACE, SK_B16_MASK_IN_PLACE, 0xFFFF, 0x0
};

◆ rgba

const uint32_t rgba[kNumPixels]

static

Initial value:

= {
        0xFF0000FF, 0xFF00FF00, 0xFFFF0000, 0xFFFFFFFF, 0xFF000000
}

Definition at line 408 of file ReadPixelsTest.cpp.

                                         {
        0xFF0000FF, 0xFF00FF00, 0xFFFF0000, 0xFFFFFFFF, 0xFF000000
};

◆ rgba4444

const uint16_t rgba4444[kNumPixels] = { 0xF00F, 0x0F0F, 0x00FF, 0xFFFF, 0x000F }

static

Definition at line 418 of file ReadPixelsTest.cpp.

418{ 0xF00F, 0x0F0F, 0x00FF, 0xFFFF, 0x000F };

Enumerations

Functions

Variables

Enumeration Type Documentation

◆ TightRowBytes

Function Documentation

◆ check_read()

◆ check_read_pixel()

◆ convert_to_pmcolor()

◆ DEF_TEST() [1/3]

◆ DEF_TEST() [2/3]

◆ DEF_TEST() [3/3]

◆ fill_dst_bmp_with_init_data()

◆ fill_src_canvas()

◆ five_reference_pixels()

◆ get_dst_bmp_init_color()

◆ get_src_color()

◆ init_bitmap()

◆ make_src_image()

◆ read_should_succeed()

◆ test_conversion()

◆ test_readpixels()

Variable Documentation

◆ alpha8

◆ bgra

◆ DEV_H

◆ DEV_RECT

◆ DEV_RECT_S

◆ DEV_W

◆ f16

◆ fAlphaType

◆ fColorType

◆ gray8

◆ [struct]

◆ gReadPixelsTestRects

◆ kAlpha

◆ kBlue

◆ kGreen

◆ kNumPixels

◆ kRed

◆ rgb565

◆ rgba

◆ rgba4444