GUI: Load/save states

src/gba/context/context.c

@@ -14,6 +14,7 @@ bool GBAContextInit(struct GBAContext* context, const char* port) {
 	context->gba = anonymousMemoryMap(sizeof(struct GBA));
 	context->cpu = anonymousMemoryMap(sizeof(struct ARMCore));
 	context->rom = 0;
+	context->fname = 0;
 	context->save = 0;
 	context->renderer = 0;
 	memset(context->components, 0, sizeof(context->components));
@@ -61,6 +62,7 @@ bool GBAContextLoadROM(struct GBAContext* context, const char* path, bool autolo
 		return false;
 	}
 
+	context->fname = path;
 	if (autoloadSave) {
 		context->save = VDirOptionalOpenFile(0, path, 0, ".sav", O_RDWR | O_CREAT);
 	}
@@ -123,7 +125,7 @@ bool GBAContextStart(struct GBAContext* context) {
 		GBAVideoAssociateRenderer(&context->gba->video, context->renderer);
 	}
 
-	if (!GBALoadROM(context->gba, context->rom, context->save, 0)) {
+	if (!GBALoadROM(context->gba, context->rom, context->save, context->fname)) {
 		return false;
 	}
 

src/gba/context/context.h

@@ -16,6 +16,7 @@ struct GBAContext {
 	struct ARMCore* cpu;
 	struct GBAVideoRenderer* renderer;
 	struct VFile* rom;
+	const char* fname;
 	struct VFile* save;
 	struct VFile* bios;
 	struct ARMComponent* components[GBA_COMPONENT_MAX];

src/gba/context/gui-runner.c

@@ -5,13 +5,17 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 #include "gui-runner.h"
 
+#include "gba/serialize.h"
 #include "util/gui/file-select.h"
 #include "util/gui/font.h"
 #include "util/gui/menu.h"
+#include "util/vfs.h"
 
 enum {
 	RUNNER_CONTINUE,
-	RUNNER_EXIT
+	RUNNER_EXIT,
+	RUNNER_SAVE_STATE,
+	RUNNER_LOAD_STATE,
 };
 
 void GBAGUIInit(struct GBAGUIRunner* runner, const char* port) {
@@ -36,6 +40,11 @@ void GBAGUIRunloop(struct GBAGUIRunner* runner) {
 	};
 	GUIMenuItemListInit(&pauseMenu.items, 0);
 	*GUIMenuItemListAppend(&pauseMenu.items) = (struct GUIMenuItem) { .title = "Unpause", .data = (void*) RUNNER_CONTINUE };
+#if !(defined(__POWERPC__) || defined(__PPC__))
+	// PPC doesn't have working savestates yet
+	*GUIMenuItemListAppend(&pauseMenu.items) = (struct GUIMenuItem) { .title = "Save state", .data = (void*) RUNNER_SAVE_STATE };
+	*GUIMenuItemListAppend(&pauseMenu.items) = (struct GUIMenuItem) { .title = "Load state", .data = (void*) RUNNER_LOAD_STATE };
+#endif
 	*GUIMenuItemListAppend(&pauseMenu.items) = (struct GUIMenuItem) { .title = "Exit game", .data = (void*) RUNNER_EXIT };
 
 	while (true) {
@@ -95,29 +104,37 @@ void GBAGUIRunloop(struct GBAGUIRunner* runner) {
 				runner->params.guiPrepare();
 			}
 			GUIInvalidateKeys(&runner->params);
-			while (true) {
-				struct GUIMenuItem item;
-				enum GUIMenuExitReason reason = GUIShowMenu(&runner->params, &pauseMenu, &item);
-				if (reason == GUI_MENU_EXIT_ACCEPT) {
-					if (item.data == (void*) RUNNER_EXIT) {
-						running = false;
-						break;
-					}
-					if (item.data == (void*) RUNNER_CONTINUE) {
-						int keys = -1;
-						while (keys) {
-							GUIPollInput(&runner->params, 0, &keys);
-						}
-						break;
-					}
-				} else {
-					int keys = -1;
-					while (keys) {
-						GUIPollInput(&runner->params, 0, &keys);
+			int keys = -1; // Huge hack to avoid an extra variable!
+			struct GUIMenuItem item;
+			enum GUIMenuExitReason reason = GUIShowMenu(&runner->params, &pauseMenu, &item);
+			if (reason == GUI_MENU_EXIT_ACCEPT) {
+				struct VFile* vf;
+				switch ((int) item.data) {
+				case RUNNER_EXIT:
+					running = false;
+					keys = 0;
+					break;
+				case RUNNER_SAVE_STATE:
+					vf = GBAGetState(runner->context.gba, 0, 1, true);
+					if (vf) {
+						GBASaveStateNamed(runner->context.gba, vf, true);
+						vf->close(vf);
 					}
 					break;
+				case RUNNER_LOAD_STATE:
+					vf = GBAGetState(runner->context.gba, 0, 1, false);
+					if (vf) {
+						GBALoadStateNamed(runner->context.gba, vf);
+						vf->close(vf);
+					}
+					break;
+				case RUNNER_CONTINUE:
+					break;
 				}
 			}
+			while (keys) {
+				GUIPollInput(&runner->params, 0, &keys);
+			}
 			if (runner->params.guiFinish) {
 				runner->params.guiFinish();
 			}

src/gba/serialize.c

@@ -187,13 +187,11 @@ bool GBADeserialize(struct GBA* gba, const struct GBASerializedState* state) {
 	return true;
 }
 
-#ifndef _3DS
 struct VFile* GBAGetState(struct GBA* gba, struct VDir* dir, int slot, bool write) {
 	char suffix[5] = { '\0' };
 	snprintf(suffix, sizeof(suffix), ".ss%d", slot);
 	return VDirOptionalOpenFile(dir, gba->activeFile, "savestate", suffix, write ? (O_CREAT | O_TRUNC | O_RDWR) : O_RDONLY);
 }
-#endif
 
 #ifdef USE_PNG
 static bool _savePNGState(struct GBA* gba, struct VFile* vf) {

src/platform/3ds/ctru-heap.c

@@ -26,8 +26,8 @@ extern char* fake_heap_start;
 extern char* fake_heap_end;
 u32 __linear_heap;
 u32 __heapBase;
-static u32 __heap_size = 0x03000000;
-static u32 __linear_heap_size = 0x00800000;
+static u32 __heap_size = 0x02800000;
+static u32 __linear_heap_size = 0x01000000;
 
 extern void (*__system_retAddr)(void);