Core: Add mCoreFind

src/core/core.c

@@ -11,6 +11,75 @@
 #if !defined(MINIMAL_CORE) || MINIMAL_CORE < 2
 #include "util/png-io.h"
 
+#ifdef M_CORE_GB
+#include "gb/core.h"
+#include "gb/gb.h"
+#endif
+#ifdef M_CORE_GBA
+#include "gba/core.h"
+#include "gba/gba.h"
+#endif
+
+static struct mCoreFilter {
+	bool (*filter)(struct VFile*);
+	struct mCore* (*open)(void);
+} _filters[] = {
+#ifdef M_CORE_GBA
+	{ GBAIsROM, GBACoreCreate },
+#endif
+#ifdef M_CORE_GB
+	{ GBIsROM, GBCoreCreate },
+#endif
+	{ 0, 0 }
+};
+
+struct mCore* mCoreFind(const char* path) {
+	struct VDir* archive = VDirOpenArchive(path);
+	struct mCore* (*open)(void) = NULL;
+	if (archive) {
+		struct VDirEntry* dirent = archive->listNext(archive);
+		while (dirent) {
+			struct VFile* vf = archive->openFile(archive, dirent->name(dirent), O_RDONLY);
+			if (!vf) {
+				dirent = archive->listNext(archive);
+				continue;
+			}
+			struct mCoreFilter* filter;
+			for (filter = &_filters[0]; filter->filter; ++filter) {
+				if (filter->filter(vf)) {
+					break;
+				}
+			}
+			vf->close(vf);
+			if (filter->open) {
+				open = filter->open;
+				break;
+			}
+			dirent = archive->listNext(archive);
+		}
+		archive->close(archive);
+	} else {
+		struct VFile* vf = VFileOpen(path, O_RDONLY);
+		if (!vf) {
+			return NULL;
+		}
+		struct mCoreFilter* filter;
+		for (filter = &_filters[0]; filter->filter; ++filter) {
+			if (filter->filter(vf)) {
+				break;
+			}
+		}
+		vf->close(vf);
+		if (filter->open) {
+			open = filter->open;
+		}
+	}
+	if (open) {
+		return open();
+	}
+	return NULL;
+}
+
 bool mCoreLoadFile(struct mCore* core, const char* path) {
 	struct VFile* rom = mDirectorySetOpenPath(&core->dirs, path, core->isROM);
 	if (!rom) {

src/core/core.h

@@ -17,7 +17,16 @@
 #endif
 #include "core/interface.h"
 
-struct VFile;
+enum mPlatform {
+	PLATFORM_NONE = -1,
+#ifdef M_CORE_GBA
+	PLATFORM_GBA,
+#endif
+#ifdef M_CORE_GB
+	PLATFORM_GB,
+#endif
+};
+
 struct mRTCSource;
 struct mCoreConfig;
 struct mCoreSync;
@@ -80,6 +89,7 @@ struct mCore {
 };
 
 #if !defined(MINIMAL_CORE) || MINIMAL_CORE < 2
+struct mCore* mCoreFind(const char* path);
 bool mCoreLoadFile(struct mCore* core, const char* path);
 
 bool mCoreAutoloadSave(struct mCore* core);

src/platform/sdl/main.c

@@ -41,13 +41,6 @@
 
 #define PORT "sdl"
 
-// TODO: Move somewhere
-enum mPlatform {
-	PLATFORM_NONE = -1,
-	PLATFORM_GBA,
-	PLATFORM_GB
-};
-
 static bool mSDLInit(struct mSDLRenderer* renderer);
 static void mSDLDeinit(struct mSDLRenderer* renderer);
 
@@ -82,50 +75,21 @@ int main(int argc, char** argv) {
 		return 0;
 	}
 
-	enum mPlatform platform = PLATFORM_NONE;
-
 	if (args.fname) {
-		struct VFile* vf = VFileOpen(args.fname, O_RDONLY);
-		if (!vf) {
-			printf("Could not open game. Are you sure the file exists?\n");
-			freeArguments(&args);
-			return 1;
-		}
-#ifdef M_CORE_GBA
-		else if (GBAIsROM(vf)) {
-			platform = PLATFORM_GBA;
-			renderer.width = VIDEO_HORIZONTAL_PIXELS;
-			renderer.height = VIDEO_VERTICAL_PIXELS;
-			renderer.core = GBACoreCreate();
-#ifdef BUILD_GL
-			mSDLGLCreate(&renderer);
-#elif defined(BUILD_GLES2) || defined(USE_EPOXY)
-			mSDLGLES2Create(&renderer);
-#else
-			mSDLSWCreate(&renderer);
-#endif
-		}
-#endif
-#ifdef M_CORE_GB
-		else if (GBIsROM(vf)) {
-			platform = PLATFORM_GB;
-			renderer.width = GB_VIDEO_HORIZONTAL_PIXELS;
-			renderer.height = GB_VIDEO_VERTICAL_PIXELS;
-			renderer.core = GBCoreCreate();
-#ifdef BUILD_GL
-			mSDLGLCreate(&renderer);
-#elif defined(BUILD_GLES2) || defined(USE_EPOXY)
-			mSDLGLES2CreateGB(&renderer);
-#else
-			mSDLSWCreateGB(&renderer);
-#endif
-		}
-#endif
-		else {
+		renderer.core = mCoreFind(args.fname);
+		if (!renderer.core) {
 			printf("Could not run game. Are you sure the file exists and is a compatible game?\n");
 			freeArguments(&args);
 			return 1;
 		}
+		renderer.core->desiredVideoDimensions(renderer.core, &renderer.width, &renderer.height);
+#ifdef BUILD_GL
+		mSDLGLCreate(&renderer);
+#elif defined(BUILD_GLES2) || defined(USE_EPOXY)
+		mSDLGLES2Create(&renderer);
+#else
+		mSDLSWCreate(&renderer);
+#endif
 	}
 
 	renderer.ratio = graphicsOpts.multiplier;