static bool ValidArgs(const Info& info, size_t rowBytes) {
const int maxDimension = SK_MaxS32 >> 2;
const size_t kMaxPixelByteSize = SK_MaxS32;
if (info.fWidth < 0 || info.fHeight < 0) {
return false;
}
if (info.fWidth > maxDimension || info.fHeight > maxDimension) {
return false;
}
if ((unsigned)info.fColorType > (unsigned)kLastEnum_ColorType) {
return false;
}
if ((unsigned)info.fAlphaType > (unsigned)kLastEnum_AlphaType) {
return false;
}
bool isOpaque;
if (SkImageInfoToBitmapConfig(info, &isOpaque) == SkBitmap::kNo_Config) {
return false;
}
// TODO: check colorspace
if (rowBytes < SkImageMinRowBytes(info)) {
return false;
}
int64_t size = (int64_t)info.fHeight * rowBytes;
if (size > (int64_t)kMaxPixelByteSize) {
return false;
}
return true;
}
static bool ValidArgs(const Info& info, size_t rowBytes) {
const int maxDimension = SK_MaxS32 >> 2;
const size_t kMaxPixelByteSize = SK_MaxS32;
if (info.fWidth < 0 || info.fHeight < 0) {
return false;
}
if (info.fWidth > maxDimension || info.fHeight > maxDimension) {
return false;
}
if ((unsigned)info.fColorType > (unsigned)kLastEnum_SkColorType) {
return false;
}
if ((unsigned)info.fAlphaType > (unsigned)kLastEnum_SkAlphaType) {
return false;
}
if (kUnknown_SkColorType == info.colorType()) {
return false;
}
// TODO: check colorspace
if (rowBytes < SkImageMinRowBytes(info)) {
return false;
}
int64_t size = (int64_t)info.fHeight * rowBytes;
if (size > (int64_t)kMaxPixelByteSize) {
return false;
}
return true;
}
static bool ValidArgs(const Info& info, size_t rowBytes, bool hasColorTable,
size_t* minSize) {
const int maxDimension = SK_MaxS32 >> 2;
if (info.width() <= 0 || info.height() <= 0) {
return false;
}
if (info.width() > maxDimension || info.height() > maxDimension) {
return false;
}
if ((unsigned)info.colorType() > (unsigned)kLastEnum_SkColorType) {
return false;
}
if ((unsigned)info.alphaType() > (unsigned)kLastEnum_SkAlphaType) {
return false;
}
if (kUnknown_SkColorType == info.colorType()) {
return false;
}
const bool needsCT = kIndex_8_SkColorType == info.colorType();
if (needsCT != hasColorTable) {
return false;
}
if (rowBytes < SkImageMinRowBytes(info)) {
return false;
}
size_t size = info.getSafeSize(rowBytes);
if (0 == size) {
return false;
}
if (minSize) {
*minSize = size;
}
return true;
}
