1 files changed, 93 insertions, 0 deletions
diff --git a/tools/rsfont/main.c b/tools/rsfont/main.c
new file mode 100644
index 0000000..2f5d9d9
--- /dev/null
+++ b/tools/rsfont/main.c
@@ -0,0 +1,93 @@
+// Copyright(c) 2015-2016 YamaArashi
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+#include <stdio.h>
+#include <string.h>
+#include <stdbool.h>
+#include "global.h"
+#include "util.h"
+#include "gfx.h"
+#include "convert_png.h"
+#include "font.h"
+
+int ExtensionToBpp(const char *extension)
+{
+    if (!strcmp(extension, "1bpp"))
+        return 1;
+    else if (!strcmp(extension, "4bpp"))
+        return 4;
+    return 0;
+}
+
+int main(int argc, char **argv)
+{
+	if (argc < 5)
+		FATAL_ERROR("Usage: rsfont INPUT_FILE OUTPUT_FILE NUM_GLYPHS LAYOUT_TYPE\n");
+
+	char *inputPath = argv[1];
+	char *outputPath = argv[2];
+	char *inputFileExtension = GetFileExtension(inputPath);
+	char *outputFileExtension = GetFileExtension(outputPath);
+
+	if (inputFileExtension == NULL)
+		FATAL_ERROR("Input file \"%s\" has no extension.\n", inputPath);
+
+	if (outputFileExtension == NULL)
+		FATAL_ERROR("Output file \"%s\" has no extension.\n", outputPath);
+
+    int numGlyphs;
+    int bpp;
+    int layout;
+
+    if (!ParseNumber(argv[3], NULL, 10, &numGlyphs))
+        FATAL_ERROR("Failed to parse number of glyphs.\n");
+
+    if (!ParseNumber(argv[4], NULL, 10, &layout))
+        FATAL_ERROR("Failed to parse layout type.\n");
+
+    if (layout < 0 || layout > 2)
+        FATAL_ERROR("Layout type %d is invalid. Layout type must be 0, 1, or 2.\n", layout);
+
+    bool toPng;
+
+    if (!strcmp(inputFileExtension, "png") && (bpp = ExtensionToBpp(outputFileExtension)) != 0)
+        toPng = false;
+    else if ((bpp = ExtensionToBpp(inputFileExtension)) != 0 && !strcmp(outputFileExtension, "png"))
+        toPng = true;
+    else
+        FATAL_ERROR("Don't know how to convert \"%s\" to \"%s\".\n", inputPath, outputPath);
+
+    if (bpp == 1 && layout == 2)
+        FATAL_ERROR("Layout type 2 is not supported with 1 BPP fonts.\n");
+
+    struct Image image;
+
+    if (toPng)
+    {
+        ReadFont(inputPath, &image, numGlyphs, bpp, layout);
+        WritePng(outputPath, &image);
+    }
+    else
+    {
+        image.bitDepth = 8;
+        ReadPng(inputPath, &image);
+        WriteFont(outputPath, &image, numGlyphs, bpp, layout);
+    }
+}