SkShader* CreateBitmapShader(const SkBitmap& src, SkShader::TileMode tmx,
SkShader::TileMode tmy, const SkMatrix* localMatrix, SkTBlitterAllocator* allocator) {
SkShader* shader;
SkColor color;
if (src.isNull() || bitmapIsTooBig(src)) {
if (NULL == allocator) {
shader = SkNEW(SkEmptyShader);
} else {
shader = allocator->createT<SkEmptyShader>();
}
}
else if (canUseColorShader(src, &color)) {
if (NULL == allocator) {
shader = SkNEW_ARGS(SkColorShader, (color));
} else {
shader = allocator->createT<SkColorShader>(color);
}
} else {
if (NULL == allocator) {
shader = SkNEW_ARGS(SkBitmapProcShader, (src, tmx, tmy, localMatrix));
} else {
shader = allocator->createT<SkBitmapProcShader>(src, tmx, tmy, localMatrix);
}
}
return shader;
}
SkShader* SkShader::CreateBitmapShader(const SkBitmap& src,
TileMode tmx, TileMode tmy,
void* storage, size_t storageSize) {
SkShader* shader;
SkColor color;
if (src.isNull() || bitmapIsTooBig(src)) {
SK_PLACEMENT_NEW(shader, SkEmptyShader, storage, storageSize);
}
else if (canUseColorShader(src, &color)) {
SK_PLACEMENT_NEW_ARGS(shader, SkColorShader, storage, storageSize,
(color));
} else {
SK_PLACEMENT_NEW_ARGS(shader, SkBitmapProcShader, storage,
storageSize, (src, tmx, tmy));
}
return shader;
}