void
ScaledFontBase::CopyGlyphsToBuilder(const GlyphBuffer &aBuffer, PathBuilder *aBuilder, const Matrix *aTransformHint)
{
BackendType backendType = aBuilder->GetBackendType();
#ifdef USE_SKIA
if (backendType == BackendType::SKIA) {
PathBuilderSkia *builder = static_cast<PathBuilderSkia*>(aBuilder);
builder->AppendPath(GetSkiaPathForGlyphs(aBuffer));
return;
}
#endif
#ifdef USE_CAIRO
if (backendType == BackendType::CAIRO) {
MOZ_ASSERT(mScaledFont);
PathBuilderCairo* builder = static_cast<PathBuilderCairo*>(aBuilder);
cairo_t *ctx = cairo_create(DrawTargetCairo::GetDummySurface());
if (aTransformHint) {
cairo_matrix_t mat;
GfxMatrixToCairoMatrix(*aTransformHint, mat);
cairo_set_matrix(ctx, &mat);
}
// Convert our GlyphBuffer into an array of Cairo glyphs.
std::vector<cairo_glyph_t> glyphs(aBuffer.mNumGlyphs);
for (uint32_t i = 0; i < aBuffer.mNumGlyphs; ++i) {
glyphs[i].index = aBuffer.mGlyphs[i].mIndex;
glyphs[i].x = aBuffer.mGlyphs[i].mPosition.x;
glyphs[i].y = aBuffer.mGlyphs[i].mPosition.y;
}
cairo_set_scaled_font(ctx, mScaledFont);
cairo_glyph_path(ctx, &glyphs[0], aBuffer.mNumGlyphs);
RefPtr<PathCairo> cairoPath = new PathCairo(ctx);
cairo_destroy(ctx);
cairoPath->AppendPathToBuilder(builder);
return;
}
if (backendType == BackendType::RECORDING) {
SkPath skPath = GetSkiaPathForGlyphs(aBuffer);
RefPtr<Path> path = MakeAndAddRef<PathSkia>(skPath, FillRule::FILL_WINDING);
path->StreamToSink(aBuilder);
return;
}
MOZ_ASSERT(false, "Path not being copied");
#endif
}
already_AddRefed<Path>
ScaledFontBase::GetPathForGlyphs(const GlyphBuffer &aBuffer, const DrawTarget *aTarget)
{
#ifdef USE_SKIA
if (aTarget->GetBackendType() == BackendType::SKIA) {
SkPath path = GetSkiaPathForGlyphs(aBuffer);
return MakeAndAddRef<PathSkia>(path, FillRule::FILL_WINDING);
}
#endif
#ifdef USE_CAIRO
if (aTarget->GetBackendType() == BackendType::CAIRO) {
MOZ_ASSERT(mScaledFont);
DrawTarget *dt = const_cast<DrawTarget*>(aTarget);
cairo_t *ctx = static_cast<cairo_t*>(dt->GetNativeSurface(NativeSurfaceType::CAIRO_CONTEXT));
bool isNewContext = !ctx;
if (!ctx) {
ctx = cairo_create(DrawTargetCairo::GetDummySurface());
cairo_matrix_t mat;
GfxMatrixToCairoMatrix(aTarget->GetTransform(), mat);
cairo_set_matrix(ctx, &mat);
}
cairo_set_scaled_font(ctx, mScaledFont);
// Convert our GlyphBuffer into an array of Cairo glyphs.
std::vector<cairo_glyph_t> glyphs(aBuffer.mNumGlyphs);
for (uint32_t i = 0; i < aBuffer.mNumGlyphs; ++i) {
glyphs[i].index = aBuffer.mGlyphs[i].mIndex;
glyphs[i].x = aBuffer.mGlyphs[i].mPosition.x;
glyphs[i].y = aBuffer.mGlyphs[i].mPosition.y;
}
cairo_new_path(ctx);
cairo_glyph_path(ctx, &glyphs[0], aBuffer.mNumGlyphs);
RefPtr<PathCairo> newPath = new PathCairo(ctx);
if (isNewContext) {
cairo_destroy(ctx);
}
return newPath.forget();
}
#endif
return nullptr;
}
void
ScaledFontBase::CopyGlyphsToBuilder(const GlyphBuffer &aBuffer, PathBuilder *aBuilder, BackendType aBackendType, const Matrix *aTransformHint)
{
#ifdef USE_SKIA
if (aBackendType == BackendType::SKIA) {
PathBuilderSkia *builder = static_cast<PathBuilderSkia*>(aBuilder);
builder->AppendPath(GetSkiaPathForGlyphs(aBuffer));
return;
}
#endif
#ifdef USE_CAIRO
if (aBackendType == BackendType::CAIRO) {
MOZ_ASSERT(mScaledFont);
PathBuilderCairo* builder = static_cast<PathBuilderCairo*>(aBuilder);
cairo_t *ctx = cairo_create(DrawTargetCairo::GetDummySurface());
if (aTransformHint) {
cairo_matrix_t mat;
GfxMatrixToCairoMatrix(*aTransformHint, mat);
cairo_set_matrix(ctx, &mat);
}
// Convert our GlyphBuffer into an array of Cairo glyphs.
std::vector<cairo_glyph_t> glyphs(aBuffer.mNumGlyphs);
for (uint32_t i = 0; i < aBuffer.mNumGlyphs; ++i) {
glyphs[i].index = aBuffer.mGlyphs[i].mIndex;
glyphs[i].x = aBuffer.mGlyphs[i].mPosition.x;
glyphs[i].y = aBuffer.mGlyphs[i].mPosition.y;
}
cairo_set_scaled_font(ctx, mScaledFont);
cairo_glyph_path(ctx, &glyphs[0], aBuffer.mNumGlyphs);
RefPtr<PathCairo> cairoPath = new PathCairo(ctx);
cairo_destroy(ctx);
cairoPath->AppendPathToBuilder(builder);
return;
}
#endif
MOZ_CRASH("The specified backend type is not supported by CopyGlyphsToBuilder");
}
