Import of the watch repository from Pebble

src/fw/applib/graphics/bitblt_private.h

@@ -0,0 +1,35 @@
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "bitblt.h"
+
+void bitblt_bitmap_into_bitmap_tiled_1bit_to_1bit(
+    GBitmap* dest_bitmap, const GBitmap* src_bitmap, GRect dest_rect,
+    GPoint src_origin_offset, GCompOp compositing_mode, GColor tint_color);
+
+void bitblt_bitmap_into_bitmap_tiled_1bit_to_8bit(
+    GBitmap* dest_bitmap, const GBitmap* src_bitmap, GRect dest_rect,
+    GPoint src_origin_offset, GCompOp compositing_mode, GColor8 tint_color);
+
+void bitblt_bitmap_into_bitmap_tiled_8bit_to_8bit(
+    GBitmap* dest_bitmap, const GBitmap* src_bitmap, GRect dest_rect,
+    GPoint src_origin_offset, GCompOp compositing_mode, GColor8 tint_color);
+
+// Used when source bitmap is 1 bit and the destination is 1 or 8 bit.
+// Sets up the GCompOp based on the tint_color.
+void bitblt_into_1bit_setup_compositing_mode(GCompOp *compositing_mode, GColor tint_color);
+
+extern const GColor8Component g_bitblt_private_blending_mask_lookup[];