GifTest.cpp File Reference

#include "include/codec/SkAndroidCodec.h"
#include "include/codec/SkCodec.h"
#include "include/core/SkBitmap.h"
#include "include/core/SkColor.h"
#include "include/core/SkColorType.h"
#include "include/core/SkData.h"
#include "include/core/SkImage.h"
#include "include/core/SkImageInfo.h"
#include "include/core/SkRect.h"
#include "include/core/SkRefCnt.h"
#include "include/core/SkStream.h"
#include "include/core/SkString.h"
#include "include/core/SkTypes.h"
#include "include/core/SkUnPreMultiply.h"
#include "tests/CodecPriv.h"
#include "tests/Test.h"
#include "tools/Resources.h"
#include <cstring>
#include <initializer_list>
#include <memory>
#include <utility>
#include <vector>

Go to the source code of this file.

Functions
static void	test_gif_data_no_colormap (skiatest::Reporter *r, void *data, size_t size)
static void	test_gif_data (skiatest::Reporter *r, void *data, size_t size)
static void	test_gif_data_dims (skiatest::Reporter *r, void *data, size_t size, int width, int height)
static void	test_interlaced_gif_data (skiatest::Reporter *r, void *data, size_t size)
static void	test_gif_data_short (skiatest::Reporter *r, void *data, size_t size)
	DEF_TEST (Gif, reporter)
	DEF_TEST (Codec_GifInterlacedTruncated, r)
	DEF_TEST (Gif_Sampled, r)
	DEF_TEST (Codec_GifTruncated, r)
	DEF_TEST (Codec_GifTruncated2, r)
	DEF_TEST (Codec_GifTruncated3, r)
	DEF_TEST (Codec_gif_out_of_palette, r)
	DEF_TEST (Codec_AnimatedTransparentGif, r)
	DEF_TEST (Codec_xOffsetTooBig, r)

Variables
static unsigned char	gGIFData []
static unsigned char	gGIFDataNoColormap []
static unsigned char	gInterlacedGIF []

Function Documentation

DEF_TEST() [1/9]

DEF_TEST	(	Codec_AnimatedTransparentGif	,
		r
	)

Definition at line 466 of file GifTest.cpp.

                                          {
    const char* path = "images/gif-transparent-index.gif";
    auto data = GetResourceAsData(path);
    if (!data) {
        ERRORF(r, "failed to find %s", path);
        return;
    }
 
    auto codec = SkCodec::MakeFromData(std::move(data));
    if (!codec) {
        ERRORF(r, "Could not create codec from %s", path);
        return;
    }
 
    SkImageInfo info = codec->getInfo();
    if ((info.width() != 4) || (info.height() != 2) || (codec->getFrameInfo().size() != 2)) {
        ERRORF(r, "Unexpected image info");
        return;
    }
 
    for (bool use565 : { false, true }) {
        SkBitmap bm;
        bm.allocPixels(use565 ? info.makeColorType(kRGB_565_SkColorType) : info);
 
        for (int i = 0; i < 2; i++) {
            SkCodec::Options options;
            options.fFrameIndex = i;
            options.fPriorFrame = (i > 0) ? (i - 1) : SkCodec::kNoFrame;
            auto result = codec->getPixels(bm.pixmap(), &options);
            REPORTER_ASSERT(r, result == SkCodec::kSuccess, "Failed to decode frame %i", i);
 
            // Per above: the first frame is full of various red pixels.
            SkColor expectedPixels[2][4] = {
                { 0xFF800000, 0xFF900000, 0xFFA00000, 0xFFB00000 },
                { 0xFFC00000, 0xFFD00000, 0xFFE00000, 0xFFF00000 },
            };
            if (use565) {
                // For kRGB_565_SkColorType, copy the red channel's high 3 bits
                // to its low 3 bits.
                expectedPixels[0][0] = 0xFF840000;
                expectedPixels[0][1] = 0xFF940000;
                expectedPixels[0][2] = 0xFFA50000;
                expectedPixels[0][3] = 0xFFB50000;
                expectedPixels[1][0] = 0xFFC60000;
                expectedPixels[1][1] = 0xFFD60000;
                expectedPixels[1][2] = 0xFFE70000;
                expectedPixels[1][3] = 0xFFF70000;
            }
            if (i > 0) {
                // Per above: the second frame overlays a 3x1 rectangle at (1,
                // 1): light blue, transparent, dark blue.
                //
                // Again, for kRGB_565_SkColorType, copy the blue channel's
                // high 3 bits to its low 3 bits.
                expectedPixels[1][1] = use565 ? 0xFF0000FF : 0xFF0000FF;
                expectedPixels[1][3] = use565 ? 0xFF000052 : 0xFF000055;
            }
 
            for (int y = 0; y < 2; y++) {
                for (int x = 0; x < 4; x++) {
                    auto expected = expectedPixels[y][x];
                    auto actual = bm.getColor(x, y);
                    REPORTER_ASSERT(r, actual == expected,
                                    "use565 %i, frame %i, pixel (%i,%i) "
                                    "mismatch! expected: %x actual: %x",
                                    (int)use565, i, x, y, expected, actual);
                }
            }
        }
    }
}

DEF_TEST() [2/9]

DEF_TEST	(	Codec_gif_out_of_palette	,
		r
	)

Definition at line 418 of file GifTest.cpp.

                                      {
    if (GetResourcePath().isEmpty()) {
        return;
    }
 
    const char* path = "images/out-of-palette.gif";
    auto data = GetResourceAsData(path);
    if (!data) {
        ERRORF(r, "failed to find %s", path);
        return;
    }
 
    auto codec = SkCodec::MakeFromData(std::move(data));
    if (!codec) {
        ERRORF(r, "Could not create codec from %s", path);
        return;
    }
 
    SkBitmap bm;
    bm.allocPixels(codec->getInfo());
    auto result = codec->getPixels(bm.pixmap());
    REPORTER_ASSERT(r, result == SkCodec::kSuccess, "Failed to decode %s with error %s",
                    path, SkCodec::ResultToString(result));
 
    struct {
        int     x;
        int     y;
        SkColor expected;
    } pixels[] = {
        { 0, 0, SK_ColorBLACK },
        { 1, 0, SK_ColorWHITE },
        { 0, 1, SK_ColorTRANSPARENT },
        { 1, 1, SK_ColorTRANSPARENT },
    };
    for (auto& pixel : pixels) {
        auto actual = bm.getColor(pixel.x, pixel.y);
        REPORTER_ASSERT(r, actual == pixel.expected,
                        "pixel (%i,%i) mismatch! expected: %x actual: %x",
                        pixel.x, pixel.y, pixel.expected, actual);
    }
}

DEF_TEST() [3/9]

DEF_TEST	(	Codec_GifInterlacedTruncated	,
		r
	)

Definition at line 213 of file GifTest.cpp.

                                          {
    // Check that gInterlacedGIF is exactly 102 bytes long, and that the final
    // 30 bytes, in the half-open range [72, 102), consists of 0x1b (indicating
    // a block of 27 bytes), then those 27 bytes, then 0x00 (end of the blocks)
    // then 0x3b (end of the GIF).
    if ((sizeof(gInterlacedGIF) != 102) ||
        (gInterlacedGIF[72] != 0x1b) ||
        (gInterlacedGIF[100] != 0x00) ||
        (gInterlacedGIF[101] != 0x3b)) {
        ERRORF(r, "Invalid gInterlacedGIF data");
        return;
    }
 
    // We want to test the GIF codec's output on some (but not all) of the
    // LZW-compressed data. As is, there is only one block of LZW-compressed
    // data, 27 bytes long. Wuffs can output partial results from a partial
    // block, but some other GIF implementations output intermediate rows only
    // on block boundaries, so truncating to a prefix of gInterlacedGIF isn't
    // enough. We also have to modify the block size down from 0x1b so that the
    // edited version still contains a complete block. In this case, it's a
    // block of 10 bytes.
    unsigned char data[83];
    memcpy(data, gInterlacedGIF, sizeof(data));
    data[72] = sizeof(data) - 73;
 
    // Just like test_interlaced_gif_data, check that we get a 9x9 image.
    SkBitmap bm;
    bool imageDecodeSuccess = decode_memory(data, sizeof(data), &bm);
    REPORTER_ASSERT(r, imageDecodeSuccess);
    REPORTER_ASSERT(r, bm.width() == 9);
    REPORTER_ASSERT(r, bm.height() == 9);
 
    // For an interlaced, non-transparent image, we thicken or replicate the
    // rows of earlier interlace passes so that, when e.g. decoding a GIF
    // sourced from a slow network connection, we show a richer intermediate
    // image while waiting for the complete image. This replication is
    // sometimes described as a "Haeberli inspired technique".
    //
    // For a 9 pixel high image, interlacing shuffles the row order to be: 0,
    // 8, 4, 2, 6, 1, 3, 5, 7. Even though truncating to 10 bytes of
    // LZW-compressed data only explicitly contains completed rows 0 and 8, we
    // still expect row 7 to be set, due to replication, and therefore not
    // transparent black (zero).
    REPORTER_ASSERT(r, bm.getColor(0, 7) != 0);
}

DEF_TEST() [4/9]

DEF_TEST	(	Codec_GifTruncated	,
		r
	)

Definition at line 286 of file GifTest.cpp.

                                {
    sk_sp<SkData> data(GetResourceAsData("images/test640x479.gif"));
    if (!data) {
        return;
    }
 
    // This is right before the header for the first image.
    data = SkData::MakeSubset(data.get(), 0, 446);
    std::unique_ptr<SkCodec> codec(SkCodec::MakeFromData(data));
    REPORTER_ASSERT(r, !codec);
}

DEF_TEST() [5/9]

DEF_TEST	(	Codec_GifTruncated2	,
		r
	)

Definition at line 323 of file GifTest.cpp.

                                 {
    // Truncate box.gif at 21, 22 and 23 bytes.
    //
    // See also Codec_GifTruncated3 in this file, below.
    //
    // See also Codec_trunc in CodecAnimTest.cpp for this magic 23.
    //
    // See also Codec_GifPreMap in CodecPartialTest.cpp for this magic 23.
    for (int i = 21; i < 24; i++) {
        sk_sp<SkData> data(GetResourceAsData("images/box.gif"));
        if (!data) {
            return;
        }
 
        data = SkData::MakeSubset(data.get(), 0, i);
        std::unique_ptr<SkCodec> codec(SkCodec::MakeFromData(data));
 
        if (i <= 21) {
            if (codec) {
                ERRORF(r, "Invalid data gave non-nullptr codec");
            }
            return;
        }
 
        if (!codec) {
            ERRORF(r, "Failed to create codec with partial data (truncated at %d)", i);
            return;
        }
 
        // The input is truncated in the Image Descriptor, before the local
        // color table, and before (21) or after (22, 23) the first frame's
        // XYWH (left / top / width / height) can be decoded. A detailed
        // breakdown of those 23 bytes is in a comment above this function.
        //
        // At 21 bytes, the MakeFromStream factory method returns a nullptr
        // SkCodec*, because creating a SkCodec requires knowing the image width
        // and height (as its constructor takes an SkEncodedInfo argument), and
        // specifically for GIF, decoding the image width and height requires
        // decoding the first frame's XYWH, as per
        // https://raw.githubusercontent.com/google/wuffs/master/test/data/artificial/gif-frame-out-of-bounds.gif.make-artificial.txt
        //
        // At 22 or 23 bytes, the first frame is complete enough that we can
        // fill in all of a SkCodec::FrameInfo's fields (other than
        // fFullyReceived). Specifically, we can fill in fRequiredFrame and
        // fAlphaType, even though we haven't yet decoded the frame's RGB
        // palette entries, as we do know the frame rectangle and that every
        // palette entry is fully opaque, due to the lack of a Graphic Control
        // Extension before the Image Descriptor.
        REPORTER_ASSERT(r, codec->getFrameCount() == 1);
    }
}

DEF_TEST() [6/9]

DEF_TEST	(	Codec_GifTruncated3	,
		r
	)

Definition at line 379 of file GifTest.cpp.

                                 {
    sk_sp<SkData> data(GetResourceAsData("images/box.gif"));
    if (!data) {
        return;
    }
 
    data = SkData::MakeSubset(data.get(), 0, 23);
    sk_sp<SkImage> image(SkImages::DeferredFromEncodedData(data));
 
    if (!image) {
        ERRORF(r, "Missing image");
        return;
    }
 
    REPORTER_ASSERT(r, image->width() == 200);
    REPORTER_ASSERT(r, image->height() == 55);
 
    SkBitmap bm;
    if (!bm.tryAllocPixels(SkImageInfo::MakeN32Premul(200, 55))) {
        ERRORF(r, "Failed to allocate pixels");
        return;
    }
 
    bm.eraseColor(SK_ColorTRANSPARENT);
    REPORTER_ASSERT(r, image->readPixels(nullptr,
                                         bm.info(),
                                         bm.getPixels(),
                                         200 * 4,
                                         0, 0));
 
    for (int i = 0; i < image->width();  ++i)
    for (int j = 0; j < image->height(); ++j) {
        SkColor actual = SkUnPreMultiply::PMColorToColor(*bm.getAddr32(i, j));
        if (actual != SK_ColorTRANSPARENT) {
            ERRORF(r, "did not initialize pixels! %i, %i is %x", i, j, actual);
        }
    }
}

DEF_TEST() [7/9]

DEF_TEST	(	Codec_xOffsetTooBig	,
		r
	)

Definition at line 545 of file GifTest.cpp.

                                 {
    const char* path = "images/xOffsetTooBig.gif";
    auto data = GetResourceAsData(path);
    if (!data) {
        ERRORF(r, "failed to find %s", path);
        return;
    }
 
    auto codec = SkCodec::MakeFromData(std::move(data));
    if (!codec) {
        ERRORF(r, "Could not create codec from %s", path);
        return;
    }
 
    REPORTER_ASSERT(r, codec->getFrameCount() == 2);
 
    auto info = codec->getInfo();
    REPORTER_ASSERT(r, info.width() == 100 && info.height() == 90);
 
    SkBitmap bm;
    bm.allocPixels(info);
    for (int i = 0; i < 2; i++) {
        SkCodec::FrameInfo frameInfo;
        REPORTER_ASSERT(r, codec->getFrameInfo(i, &frameInfo));
 
        SkIRect expectedRect = i == 0 ? SkIRect{0, 0, 100, 90} : SkIRect{100, 90, 100, 90};
        REPORTER_ASSERT(r, expectedRect == frameInfo.fFrameRect);
 
        SkCodec::Options options;
        options.fFrameIndex = i;
        REPORTER_ASSERT(r, SkCodec::kSuccess == codec->getPixels(bm.pixmap(), &options));
 
        REPORTER_ASSERT(r, bm.getColor(0, 0) == SK_ColorRED);
    }
}

DEF_TEST() [8/9]

DEF_TEST	(	Gif	,
		reporter
	)

This test will test the ability of the SkCodec to deal with GIF files which have been mangled somehow. We want to display as much of the GIF as possible.

Definition at line 165 of file GifTest.cpp.

                        {
    // test perfectly good images.
    test_gif_data(reporter, static_cast<void *>(gGIFData), sizeof(gGIFData));
    test_interlaced_gif_data(reporter, static_cast<void *>(gInterlacedGIF),
                          sizeof(gInterlacedGIF));
 
    unsigned char badData[sizeof(gGIFData)];
 
    memcpy(badData, gGIFData, sizeof(gGIFData));
    badData[6] = 0x01;  // image too wide
    test_gif_data(reporter, static_cast<void *>(badData), sizeof(gGIFData));
    // "libgif warning [image too wide, expanding output to size]"
 
    memcpy(badData, gGIFData, sizeof(gGIFData));
    badData[8] = 0x01;  // image too tall
    test_gif_data(reporter, static_cast<void *>(badData), sizeof(gGIFData));
    // "libgif warning [image too tall,  expanding output to size]"
 
    memcpy(badData, gGIFData, sizeof(gGIFData));
    badData[62] = 0x01;  // image shifted right
    test_gif_data_dims(reporter, static_cast<void *>(badData), sizeof(gGIFData), 4, 3);
 
    memcpy(badData, gGIFData, sizeof(gGIFData));
    badData[64] = 0x01;  // image shifted down
    test_gif_data_dims(reporter, static_cast<void *>(badData), sizeof(gGIFData), 3, 4);
 
    memcpy(badData, gGIFData, sizeof(gGIFData));
    badData[62] = 0xff;  // image shifted right
    badData[63] = 0xff;
    test_gif_data_dims(reporter, static_cast<void *>(badData), sizeof(gGIFData), 3 + 0xFFFF, 3);
 
    memcpy(badData, gGIFData, sizeof(gGIFData));
    badData[64] = 0xff;  // image shifted down
    badData[65] = 0xff;
    test_gif_data_dims(reporter, static_cast<void *>(badData), sizeof(gGIFData), 3, 3 + 0xFFFF);
 
    test_gif_data_no_colormap(reporter, static_cast<void *>(gGIFDataNoColormap),
                              sizeof(gGIFDataNoColormap));
 
    // test short Gif.  80 is missing a few bytes.
    test_gif_data_short(reporter, static_cast<void *>(gGIFData), 80);
    // "libgif warning [DGifGetLine]"
 
    test_interlaced_gif_data(reporter, static_cast<void *>(gInterlacedGIF),
                             100);  // 100 is missing a few bytes
    // "libgif warning [interlace DGifGetLine]"
}

DEF_TEST() [9/9]

DEF_TEST	(	Gif_Sampled	,
		r
	)

Definition at line 261 of file GifTest.cpp.

                         {
    auto data = GetResourceAsData("images/test640x479.gif");
    REPORTER_ASSERT(r, data);
    if (!data) {
        return;
    }
    std::unique_ptr<SkStreamAsset> stream(new SkMemoryStream(std::move(data)));
    std::unique_ptr<SkAndroidCodec> codec(SkAndroidCodec::MakeFromStream(std::move(stream)));
    REPORTER_ASSERT(r, codec);
    if (!codec) {
        return;
    }
 
    SkAndroidCodec::AndroidOptions options;
    options.fSampleSize = 4;
 
    SkBitmap bm;
    bm.allocPixels(codec->getInfo());
    const SkCodec::Result result = codec->getAndroidPixels(codec->getInfo(), bm.getPixels(),
            bm.rowBytes(), &options);
    REPORTER_ASSERT(r, result == SkCodec::kSuccess);
}

test_gif_data()

static void test_gif_data ( skiatest::Reporter *  r, void *  data, size_t  size  )

static

Definition at line 81 of file GifTest.cpp.

                                                                        {
    SkBitmap bm;
    bool imageDecodeSuccess = decode_memory(data, size, &bm);
    REPORTER_ASSERT(r, imageDecodeSuccess);
    REPORTER_ASSERT(r, bm.width() == 3);
    REPORTER_ASSERT(r, bm.height() == 3);
    REPORTER_ASSERT(r, !(bm.empty()));
    if (!(bm.empty())) {
        REPORTER_ASSERT(r, bm.getColor(0, 0) == 0xffff0000);
        REPORTER_ASSERT(r, bm.getColor(1, 0) == 0xffffff00);
        REPORTER_ASSERT(r, bm.getColor(2, 0) == 0xff00ffff);
        REPORTER_ASSERT(r, bm.getColor(0, 1) == 0xff808080);
        REPORTER_ASSERT(r, bm.getColor(1, 1) == 0xff000000);
        REPORTER_ASSERT(r, bm.getColor(2, 1) == 0xff00ff00);
        REPORTER_ASSERT(r, bm.getColor(0, 2) == 0xffffffff);
        REPORTER_ASSERT(r, bm.getColor(1, 2) == 0xffff00ff);
        REPORTER_ASSERT(r, bm.getColor(2, 2) == 0xff0000ff);
    }
}

test_gif_data_dims()

static void test_gif_data_dims ( skiatest::Reporter *  r, void *  data, size_t  size, int  width, int  height  )

static

Definition at line 100 of file GifTest.cpp.

                    {
    SkBitmap bm;
    bool imageDecodeSuccess = decode_memory(data, size, &bm);
    REPORTER_ASSERT(r, imageDecodeSuccess);
    REPORTER_ASSERT(r, bm.width() == width);
    REPORTER_ASSERT(r, bm.height() == height);
    REPORTER_ASSERT(r, !(bm.empty()));
}

test_gif_data_no_colormap()

static void test_gif_data_no_colormap ( skiatest::Reporter *  r, void *  data, size_t  size  )

static

Definition at line 68 of file GifTest.cpp.

                                                   {
    SkBitmap bm;
    bool imageDecodeSuccess = decode_memory(data, size, &bm);
    REPORTER_ASSERT(r, imageDecodeSuccess);
    REPORTER_ASSERT(r, bm.width() == 1);
    REPORTER_ASSERT(r, bm.height() == 1);
    REPORTER_ASSERT(r, !(bm.empty()));
    if (!(bm.empty())) {
        REPORTER_ASSERT(r, bm.getColor(0, 0) == 0x00000000);
    }
}

test_gif_data_short()

static void test_gif_data_short ( skiatest::Reporter *  r, void *  data, size_t  size  )

static

Definition at line 141 of file GifTest.cpp.

                                             {
    SkBitmap bm;
    bool imageDecodeSuccess = decode_memory(data, size, &bm);
    REPORTER_ASSERT(r, imageDecodeSuccess);
    REPORTER_ASSERT(r, bm.width() == 3);
    REPORTER_ASSERT(r, bm.height() == 3);
    REPORTER_ASSERT(r, !(bm.empty()));
    if (!(bm.empty())) {
        REPORTER_ASSERT(r, bm.getColor(0, 0) == 0xffff0000);
        REPORTER_ASSERT(r, bm.getColor(1, 0) == 0xffffff00);
        REPORTER_ASSERT(r, bm.getColor(2, 0) == 0xff00ffff);
        REPORTER_ASSERT(r, bm.getColor(0, 1) == 0xff808080);
        REPORTER_ASSERT(r, bm.getColor(1, 1) == 0xff000000);
        REPORTER_ASSERT(r, bm.getColor(2, 1) == 0xff00ff00);
    }
}

test_interlaced_gif_data()

static void test_interlaced_gif_data ( skiatest::Reporter *  r, void *  data, size_t  size  )

static

Definition at line 109 of file GifTest.cpp.

                                                  {
    SkBitmap bm;
    bool imageDecodeSuccess = decode_memory(data, size, &bm);
    REPORTER_ASSERT(r, imageDecodeSuccess);
    REPORTER_ASSERT(r, bm.width() == 9);
    REPORTER_ASSERT(r, bm.height() == 9);
    REPORTER_ASSERT(r, !(bm.empty()));
    if (!(bm.empty())) {
        REPORTER_ASSERT(r, bm.getColor(0, 0) == 0xffff0000);
        REPORTER_ASSERT(r, bm.getColor(1, 0) == 0xffffff00);
        REPORTER_ASSERT(r, bm.getColor(2, 0) == 0xff00ffff);
 
        REPORTER_ASSERT(r, bm.getColor(0, 2) == 0xffffffff);
        REPORTER_ASSERT(r, bm.getColor(1, 2) == 0xffff00ff);
        REPORTER_ASSERT(r, bm.getColor(2, 2) == 0xff0000ff);
 
        REPORTER_ASSERT(r, bm.getColor(0, 4) == 0xff808080);
        REPORTER_ASSERT(r, bm.getColor(1, 4) == 0xff000000);
        REPORTER_ASSERT(r, bm.getColor(2, 4) == 0xff00ff00);
 
        REPORTER_ASSERT(r, bm.getColor(0, 6) == 0xffff0000);
        REPORTER_ASSERT(r, bm.getColor(1, 6) == 0xffffff00);
        REPORTER_ASSERT(r, bm.getColor(2, 6) == 0xff00ffff);
 
        REPORTER_ASSERT(r, bm.getColor(0, 8) == 0xffffffff);
        REPORTER_ASSERT(r, bm.getColor(1, 8) == 0xffff00ff);
        REPORTER_ASSERT(r, bm.getColor(2, 8) == 0xff0000ff);
    }
}

Variable Documentation

gGIFData

unsigned char gGIFData[]

static

Initial value:

= {
  0x47, 0x49, 0x46, 0x38, 0x37, 0x61, 0x03, 0x00, 0x03, 0x00, 0xe3, 0x08,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0xff, 0x00,
  0xff, 0x80, 0x80, 0x80, 0x00, 0xff, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
  0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
  0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
  0xff, 0x2c, 0x00, 0x00, 0x00, 0x00, 0x03, 0x00, 0x03, 0x00, 0x00, 0x04,
  0x07, 0x50, 0x1c, 0x43, 0x40, 0x41, 0x23, 0x44, 0x00, 0x3b
}

Definition at line 32 of file GifTest.cpp.

                                  {
  0x47, 0x49, 0x46, 0x38, 0x37, 0x61, 0x03, 0x00, 0x03, 0x00, 0xe3, 0x08,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0xff, 0x00,
  0xff, 0x80, 0x80, 0x80, 0x00, 0xff, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
  0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
  0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
  0xff, 0x2c, 0x00, 0x00, 0x00, 0x00, 0x03, 0x00, 0x03, 0x00, 0x00, 0x04,
  0x07, 0x50, 0x1c, 0x43, 0x40, 0x41, 0x23, 0x44, 0x00, 0x3b
};

gGIFDataNoColormap

unsigned char gGIFDataNoColormap[]

static

Initial value:

= {
  
  0x47, 0x49, 0x46, 0x38, 0x39, 0x61,
  
  0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00,
  
  0x21, 0xf9, 0x04, 0x01, 0x0a, 0x00, 0x01, 0x00,
  
  0x2c, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00,
  
  0x02, 0x02, 0x4c, 0x01, 0x00,
  
  0x3b
}

Definition at line 42 of file GifTest.cpp.

                                            {
  // Header
  0x47, 0x49, 0x46, 0x38, 0x39, 0x61,
  // Screen descriptor
  0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00,
  // Graphics control extension
  0x21, 0xf9, 0x04, 0x01, 0x0a, 0x00, 0x01, 0x00,
  // Image descriptor
  0x2c, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00,
  // Image data
  0x02, 0x02, 0x4c, 0x01, 0x00,
  // Trailer
  0x3b
};

gInterlacedGIF

unsigned char gInterlacedGIF[]

static

Initial value:

= {
  0x47, 0x49, 0x46, 0x38, 0x37, 0x61, 0x09, 0x00, 0x09, 0x00, 0xe3, 0x08, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0xff, 0x00, 0xff, 0x80,
  0x80, 0x80, 0x00, 0xff, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0x00, 0xff, 0xff,
  0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
  0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x2c, 0x00, 0x00, 0x00,
  0x00, 0x09, 0x00, 0x09, 0x00, 0x40, 0x04, 0x1b, 0x50, 0x1c, 0x23, 0xe9, 0x44,
  0x23, 0x60, 0x9d, 0x09, 0x28, 0x1e, 0xf8, 0x6d, 0x64, 0x56, 0x9d, 0x53, 0xa8,
  0x7e, 0xa8, 0x65, 0x94, 0x5c, 0xb0, 0x8a, 0x45, 0x04, 0x00, 0x3b
}

Definition at line 57 of file GifTest.cpp.

                                        {
  0x47, 0x49, 0x46, 0x38, 0x37, 0x61, 0x09, 0x00, 0x09, 0x00, 0xe3, 0x08, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0xff, 0x00, 0xff, 0x80,
  0x80, 0x80, 0x00, 0xff, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0x00, 0xff, 0xff,
  0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
  0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x2c, 0x00, 0x00, 0x00,
  0x00, 0x09, 0x00, 0x09, 0x00, 0x40, 0x04, 0x1b, 0x50, 0x1c, 0x23, 0xe9, 0x44,
  0x23, 0x60, 0x9d, 0x09, 0x28, 0x1e, 0xf8, 0x6d, 0x64, 0x56, 0x9d, 0x53, 0xa8,
  0x7e, 0xa8, 0x65, 0x94, 0x5c, 0xb0, 0x8a, 0x45, 0x04, 0x00, 0x3b
};