M src/sdl/sdl-events.c → src/sdl/sdl-events.c

@@ -4,16 +4,17 @@ #include "debugger.h"
 #include "gba-io.h"
 #include "gba-video.h"
 
-int GBASDLInitEvents() {
+int GBASDLInitEvents(struct GBASDLEvents* context) {
 	if (SDL_InitSubSystem(SDL_INIT_JOYSTICK) < 0) {
 		return 0;
 	}
 	SDL_JoystickEventState(SDL_ENABLE);
-	SDL_JoystickOpen(0);
+	context->joystick = SDL_JoystickOpen(0);
 	return 1;
 }
 
-void GBASDLDeinitEvents() {
+void GBASDLDeinitEvents(struct GBASDLEvents* context) {
+	SDL_JoystickClose(context->joystick);
 	SDL_QuitSubSystem(SDL_INIT_JOYSTICK);
 }
 

M src/sdl/sdl-events.h → src/sdl/sdl-events.h

@@ -5,8 +5,12 @@ #include "gba-thread.h"
 
 #include <SDL.h>
 
-int GBASDLInitEvents(void);
-void GBASDLDeinitEvents(void);
+struct GBASDLEvents {
+	SDL_Joystick* joystick;
+};
+
+int GBASDLInitEvents(struct GBASDLEvents*);
+void GBASDLDeinitEvents(struct GBASDLEvents*);
 
 void GBASDLHandleEvent(struct GBAThread* context, const union SDL_Event* event);
 

M src/util/circle-buffer.c → src/util/circle-buffer.c

@@ -42,8 +42,24 @@ }
 	return 1;
 }
 
+int CircleBufferRead8(struct CircleBuffer* buffer, int8_t* value) {
+	int8_t* data = buffer->readPtr;
+	if (buffer->readPtr == buffer->writePtr) {
+		return 0;
+	}
+	*value = *data;
+	++data;
+	ptrdiff_t size = (int8_t*) data - (int8_t*) buffer->data;
+	if (size < buffer->capacity) {
+		buffer->readPtr = data;
+	} else {
+		buffer->readPtr = buffer->data;
+	}
+	return 1;
+}
+
 int CircleBufferRead32(struct CircleBuffer* buffer, int32_t* value) {
-	uint32_t* data = buffer->readPtr;
+	int32_t* data = buffer->readPtr;
 	if (buffer->readPtr == buffer->writePtr) {
 		return 0;
 	}

M src/util/circle-buffer.h → src/util/circle-buffer.h

@@ -14,6 +14,7 @@ void CircleBufferInit(struct CircleBuffer* buffer, unsigned capacity);
 void CircleBufferDeinit(struct CircleBuffer* buffer);
 unsigned CircleBufferSize(const struct CircleBuffer* buffer);
 int CircleBufferWrite32(struct CircleBuffer* buffer, int32_t value);
+int CircleBufferRead8(struct CircleBuffer* buffer, int8_t* value);
 int CircleBufferRead32(struct CircleBuffer* buffer, int32_t* value);
 
 #endif