Fix bug in SkGifCodec / Switch SkImageDec tests to use Codec

tests/KtxTest.cpp

-/*
- * Copyright 2014 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include "Resources.h"
-#include "SkBitmap.h"
-#include "SkData.h"
-#include "SkImageGenerator.h"
-#include "SkForceLinking.h"
-#include "SkImageDecoder.h"
-#include "SkOSFile.h"
-#include "SkRandom.h"
-#include "SkStream.h"
-#include "Test.h"
-
-__SK_FORCE_IMAGE_DECODER_LINKING;
-
-/**
- * First, make sure that writing an 8-bit RGBA KTX file and then
- * reading it produces the same bitmap.
- */
-DEF_TEST(KtxReadWrite, reporter) {
-
-    // Random number generator with explicit seed for reproducibility
-    SkRandom rand(0x1005cbad);
-
-    SkBitmap bm8888;
-    bm8888.allocN32Pixels(128, 128);
-
-    uint8_t *pixels = reinterpret_cast<uint8_t*>(bm8888.getPixels());
-    REPORTER_ASSERT(reporter, pixels);
-
-    if (nullptr == pixels) {
-        return;
-    }
-    
-    uint8_t *row = pixels;
-    for (int y = 0; y < bm8888.height(); ++y) {        
-        for (int x = 0; x < bm8888.width(); ++x) {
-            uint8_t a = rand.nextRangeU(0, 255);
-            uint8_t r = rand.nextRangeU(0, 255);
-            uint8_t g = rand.nextRangeU(0, 255);
-            uint8_t b = rand.nextRangeU(0, 255);
-
-            SkPMColor &pixel = *(reinterpret_cast<SkPMColor*>(row + x*sizeof(SkPMColor)));
-            pixel = SkPreMultiplyARGB(a, r, g, b);
-        }
-        row += bm8888.rowBytes();
-    }
-    REPORTER_ASSERT(reporter, !(bm8888.empty()));
-
-    SkAutoDataUnref encodedData(SkImageEncoder::EncodeData(bm8888, SkImageEncoder::kKTX_Type, 0));
-    if (nullptr == encodedData.get()) {
-        ERRORF(reporter, "failed to encode the bitmap to KTX");
-        return;
-    }
-
-
-    SkAutoTDelete<SkMemoryStream> stream(new SkMemoryStream(encodedData));
-    REPORTER_ASSERT(reporter, stream);
-
-    SkBitmap decodedBitmap;
-    bool imageDecodeSuccess = SkImageDecoder::DecodeStream(stream, &decodedBitmap);
-    if (!imageDecodeSuccess) {
-        ERRORF(reporter, "failed to decode the KTX stream");
-        return;
-    }
-
-    REPORTER_ASSERT(reporter, decodedBitmap.colorType() == bm8888.colorType());
-    REPORTER_ASSERT(reporter, decodedBitmap.alphaType() == bm8888.alphaType());
-    REPORTER_ASSERT(reporter, decodedBitmap.width() == bm8888.width());
-    REPORTER_ASSERT(reporter, decodedBitmap.height() == bm8888.height());
-    REPORTER_ASSERT(reporter, !(decodedBitmap.empty()));
-
-    uint8_t *decodedPixels = reinterpret_cast<uint8_t*>(decodedBitmap.getPixels());
-    REPORTER_ASSERT(reporter, decodedPixels);
-    REPORTER_ASSERT(reporter, decodedBitmap.getSize() == bm8888.getSize());
-
-    if (nullptr == decodedPixels) {
-        return;
-    }
-
-    REPORTER_ASSERT(reporter, memcmp(decodedPixels, pixels, decodedBitmap.getSize()) == 0);
-}
-
-/**
- * Next test is to see whether or not reading an unpremultiplied KTX file accurately
- * creates a premultiplied buffer...
- */
-DEF_TEST(KtxReadUnpremul, reporter) {
-
-    static const uint8_t kHalfWhiteKTX[] = {
-        0xAB, 0x4B, 0x54, 0x58, 0x20, 0x31, // First twelve bytes is magic
-        0x31, 0xBB, 0x0D, 0x0A, 0x1A, 0x0A, // KTX identifier string
-        0x01, 0x02, 0x03, 0x04, // Then magic endian specifier
-        0x01, 0x14, 0x00, 0x00, // uint32_t fGLType;
-        0x01, 0x00, 0x00, 0x00, // uint32_t fGLTypeSize;
-        0x08, 0x19, 0x00, 0x00, // uint32_t fGLFormat;
-        0x58, 0x80, 0x00, 0x00, // uint32_t fGLInternalFormat;
-        0x08, 0x19, 0x00, 0x00, // uint32_t fGLBaseInternalFormat;
-        0x02, 0x00, 0x00, 0x00, // uint32_t fPixelWidth;
-        0x02, 0x00, 0x00, 0x00, // uint32_t fPixelHeight;
-        0x00, 0x00, 0x00, 0x00, // uint32_t fPixelDepth;
-        0x00, 0x00, 0x00, 0x00, // uint32_t fNumberOfArrayElements;
-        0x01, 0x00, 0x00, 0x00, // uint32_t fNumberOfFaces;
-        0x01, 0x00, 0x00, 0x00, // uint32_t fNumberOfMipmapLevels;
-        0x00, 0x00, 0x00, 0x00, // uint32_t fBytesOfKeyValueData;
-        0x10, 0x00, 0x00, 0x00, // image size: 2x2 image of RGBA = 4 * 4 = 16 bytes
-        0xFF, 0xFF, 0xFF, 0x80, // Pixel 1
-        0xFF, 0xFF, 0xFF, 0x80, // Pixel 2
-        0xFF, 0xFF, 0xFF, 0x80, // Pixel 3
-        0xFF, 0xFF, 0xFF, 0x80};// Pixel 4
-
-    SkAutoTDelete<SkMemoryStream> stream(new SkMemoryStream(kHalfWhiteKTX, sizeof(kHalfWhiteKTX)));
-    REPORTER_ASSERT(reporter, stream);
-
-    SkBitmap decodedBitmap;
-    bool imageDecodeSuccess = SkImageDecoder::DecodeStream(stream, &decodedBitmap);
-    if (!imageDecodeSuccess) {
-        ERRORF(reporter, "failed to decode the KTX stream");
-        return;
-    }
-
-    REPORTER_ASSERT(reporter, decodedBitmap.colorType() == kN32_SkColorType);
-    REPORTER_ASSERT(reporter, decodedBitmap.alphaType() == kPremul_SkAlphaType);
-    REPORTER_ASSERT(reporter, decodedBitmap.width() == 2);
-    REPORTER_ASSERT(reporter, decodedBitmap.height() == 2);
-    REPORTER_ASSERT(reporter, !(decodedBitmap.empty()));
-
-    uint8_t *decodedPixels = reinterpret_cast<uint8_t*>(decodedBitmap.getPixels());
-    REPORTER_ASSERT(reporter, decodedPixels);
-
-    uint8_t *row = decodedPixels;
-    for (int j = 0; j < decodedBitmap.height(); ++j) {
-        for (int i = 0; i < decodedBitmap.width(); ++i) {
-            SkPMColor pixel = *(reinterpret_cast<SkPMColor*>(row + i*sizeof(SkPMColor)));
-            REPORTER_ASSERT(reporter, SkPreMultiplyARGB(0x80, 0xFF, 0xFF, 0xFF) == pixel);
-        }
-        row += decodedBitmap.rowBytes();
-    }
-}