FontScanner.cpp File Reference

#include "src/base/SkAutoMalloc.h"
#include "src/core/SkFontScanner.h"
#include "src/core/SkTHash.h"
#include "src/core/SkWriteBuffer.h"
#include "tests/Test.h"
#include "tools/Resources.h"
#include "tools/fonts/FontToolUtils.h"

Go to the source code of this file.

Functions
static void	FontScanner_VariableFont (skiatest::Reporter *reporter, SkFontScanner *scanner, bool defaultInstanceOnly)

Function Documentation

FontScanner_VariableFont()

static void FontScanner_VariableFont ( skiatest::Reporter *  reporter, SkFontScanner *  scanner, bool  defaultInstanceOnly  )

static

Definition at line 24 of file FontScanner.cpp.

                                                               {
    SkString name = GetResourcePath("fonts/Variable.ttf");
 
    std::unique_ptr<SkStreamAsset> stream = SkStream::MakeFromFile(name.c_str());
    if (!stream) {
         REPORTER_ASSERT(reporter, false, "Cannot open the font file %s\n", name.c_str());
    }
 
    int numFaces;
    if (!scanner->scanFile(stream.get(), &numFaces)) {
         REPORTER_ASSERT(reporter, false, "Cannot scanFile\n");
    }
    REPORTER_ASSERT(reporter, numFaces == 1);
 
    skia_private::THashSet<SkFontStyle> uniqueStyles;
    for (int faceIndex = 0; faceIndex < numFaces; ++faceIndex) {
        int numInstances;
        if (!scanner->scanFace(stream.get(), faceIndex, &numInstances)) {
            REPORTER_ASSERT(reporter, false, "Cannot scanFace\n");
            continue;
        }
        if (defaultInstanceOnly) {
            REPORTER_ASSERT(reporter, numInstances == 1);
            continue;
        }
        REPORTER_ASSERT(reporter, numInstances == 5);
        for (int instanceIndex = 1; instanceIndex <= numInstances; ++instanceIndex) {
            bool isFixedPitch;
            SkString realname;
            SkFontStyle style = SkFontStyle(); // avoid uninitialized warning
            if (!scanner->scanInstance(stream.get(),
                                        faceIndex,
                                        instanceIndex,
                                        &realname,
                                        &style,
                                        &isFixedPitch,
                                        nullptr)) {
                REPORTER_ASSERT(reporter,
                                false,
                                "Cannot scanInstance %s %d\n",
                                name.c_str(),
                                faceIndex);
                continue;
            } else {
                if (uniqueStyles.find(style) == nullptr) {
                    uniqueStyles.add(style);
                } else {
                    REPORTER_ASSERT(
                        reporter,
                        false,
                        "Font: %s (%d %d %d)\n",
                        realname.c_str(), style.weight(), style.width(), style.slant());
                }
            }
        }
        REPORTER_ASSERT(reporter, uniqueStyles.count() == numInstances);
    }
}