Compile shaders into the library.

[movit] / make_bundled_shaders.cpp

diff --git a/make_bundled_shaders.cpp b/make_bundled_shaders.cpp
new file mode 100644 (file)
index 0000000..53ce13f
--- /dev/null
+++ b/make_bundled_shaders.cpp
@@ -0,0 +1,65 @@
+#include <stdio.h>
+#include <string>
+#include <vector>
+#include "util.h"
+#include "bundled_shaders.h"
+
+using namespace std;
+using namespace movit;
+
+namespace movit {
+
+// We need a fake (empty) list of shaders, since we reuse read_file().
+BundledShader bundled_shaders[] = {
+       { nullptr, 0, 0 }
+};
+const char *shader_bundle = "";
+extern string *movit_data_directory;
+
+}  // namespace movit
+
+int main(int argc, char **argv)
+{
+       std::vector<BundledShader> shaders;
+       std::string bundle;
+
+       movit_data_directory = new string(".");
+
+       for (int i = 1; i < argc; ++i) {
+               string contents = read_file(argv[i]);
+               shaders.push_back(BundledShader{ argv[i], /*offset=*/bundle.size(), /*length=*/contents.size() });
+               bundle += contents;
+       }
+
+       printf("// Autogenerated by make_bundled_shaders.cpp. Do not edit by hand!\n");
+       printf("#include <string>\n");
+       printf("#include \"bundled_shaders.h\"\n");
+       printf("\n");
+       printf("namespace movit {\n");
+       printf("\n");
+       printf("BundledShader bundled_shaders[] = {\n");
+       for (const BundledShader &shader : shaders) {
+               printf("\t{ \"%s\", %zu, %zu },\n", shader.filename, shader.offset, shader.length);
+       }
+       printf("\t{ nullptr, 0, 0 }\n");
+       printf("};\n");
+       printf("const char *shader_bundle = \"");
+       for (unsigned char ch : bundle) {
+               if (ch == '\n') {
+                       printf("\\n");
+               } else if (ch == '\t') {
+                       printf("\\t");
+               } else if (ch == '"') { 
+                       printf("\\\"");
+               } else if (ch == '\\') {        
+                       printf("\\\\");
+               } else if (!isprint(ch)) {
+                       printf("\\0%o", ch);
+               } else {
+                       printf("%c", ch);
+               }
+       }
+       printf("\";\n");
+       printf("\n");
+       printf("}  // namespace movit\n");
+}