Merge branch 'master' (early part) into medusa

CHANGES

@@ -75,6 +75,14 @@ Bugfixes:
  - GBA Memory: Fix Vast Fame support (taizou) (fixes mgba.io/i/1170)
  - GB, GBA Savedata: Fix unmasking savedata crash
  - GBA DMA: Fix temporal sorting of DMAs of different priorities
+ - FFmpeg: Fix encoding audio/video queue issues
+ - GB Serialize: Fix IRQ pending/EI pending confusion
+ - GB MBC: Improve multicart detection heuristic (fixes mgba.io/i/1177)
+ - GB Audio: Fix channel 3 reset value
+ - GB Audio: Fix channel 4 initial LFSR
+ - GB, GBA Video: Don't call finishFrame twice in thread proxy
+ - GB Audio: Fix channel 1, 2 and 4 reset timing
+ - Util: Fix wrapping edge cases in RingFIFO
 Misc:
  - GBA Timer: Use global cycles for timers
  - GBA: Extend oddly-sized ROMs to full address space (fixes mgba.io/i/722)
@@ -108,14 +116,28 @@ Misc:
  - Wii: Move audio handling to callbacks (fixes mgba.io/i/803)
  - Qt: Clean up FPS target UI (fixes mgba.io/i/436)
  - Core: Remove broken option for whether rewinding restores save games
+ - FFmpeg: Support lossless VP9 encoding
+ - mGUI: Add fast forward toggle
+Changes from beta 1:
+Features:
+ - Libretro: Add Game Boy cheat support
+Bugfixes:
+ - PSP2: Fix audio crackling after fast forward
+ - PSP2: Fix audio crackling when buffer is full
+ - 3DS: Fix unused screens not clearing (fixes mgba.io/i/1184)
+Misc:
+ - mGUI: Add SGB border configuration option
 
-0.6.3: (2017-04-14)
+0.6 beta 1: (2018-09-24)
+- Initial beta for 0.6
+
+0.6.3: (2018-04-14)
 Bugfixes:
  - GB Audio: Revert unsigned audio changes
  - GB Video: Fix bad merge (fixes mgba.io/i/1040)
  - GBA Video: Fix OBJ blending regression (fixes mgba.io/i/1037)
 
-0.6.2: (2017-04-03)
+0.6.2: (2018-04-03)
 Bugfixes:
  - Core: Fix ROM patches not being unloaded when disabled (fixes mgba.io/i/962)
  - 3DS: Fix opening files in directory names with trailing slashes

CMakeLists.txt

@@ -49,6 +49,7 @@ set(BUILD_SHARED ON CACHE BOOL "Build a shared library")
 set(SKIP_LIBRARY OFF CACHE BOOL "Skip building the library (useful for only building libretro or OpenEmu cores)")
 set(BUILD_GL ON CACHE BOOL "Build with OpenGL")
 set(BUILD_GLES2 OFF CACHE BOOL "Build with OpenGL|ES 2")
+set(BUILD_GLES3 OFF CACHE BOOL "Build with OpenGL|ES 3")
 set(USE_EPOXY ON CACHE STRING "Build with libepoxy")
 set(DISABLE_DEPS OFF CACHE BOOL "Build without dependencies")
 set(DISTBUILD OFF CACHE BOOL "Build distribution packages")
@@ -93,7 +94,7 @@ source_group("Utilities" FILES ${UTIL_SRC})
 include_directories(BEFORE ${CMAKE_CURRENT_SOURCE_DIR}/include ${CMAKE_CURRENT_SOURCE_DIR}/src)
 
 if(NOT CMAKE_BUILD_TYPE)
-	set(CMAKE_BUILD_TYPE Release CACHE STRING "Build type (e.g. Release or Debug)" FORCE)
+	set(CMAKE_BUILD_TYPE Release CACHE STRING "Build type (e.g. Release, RelWithDebInfo, or Debug)" FORCE)
 endif()
 
 if(UNIX OR WIN32_UNIX_PATHS)
@@ -268,6 +269,14 @@ if(APPLE OR CMAKE_C_COMPILER_ID STREQUAL "GNU" AND BUILD_LTO)
 	set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -flto")
 endif()
 
+if(CMAKE_C_COMPILER_ID STREQUAL "GNU" OR CMAKE_C_COMPILER_ID STREQUAL "Clang" OR CMAKE_C_COMPILER_ID STREQUAL "AppleClang")
+	find_program(OBJCOPY ${cross_prefix}objcopy)
+	find_program(STRIP ${cross_prefix}strip)
+
+	set(CMAKE_C_FLAGS_RELWITHDEBINFO "${CMAKE_C_FLAGS_RELEASE} -gdwarf")
+	set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELEASE} -gdwarf")
+endif()
+
 if(BUILD_BBB OR BUILD_RASPI OR BUILD_PANDORA)
 	if(NOT BUILD_EGL)
 		add_definitions(-DCOLOR_16_BIT -DCOLOR_5_6_5)
@@ -301,7 +310,7 @@ if(DEFINED 3DS)
 endif()
 
 if(DEFINED SWITCH)
-	set(BUILD_GLES2 ON CACHE BOOL "Build with OpenGL|ES 2" FORCE)
+	set(BUILD_GLES3 ON CACHE BOOL "Build with OpenGL|ES 3" FORCE)
 endif()
 
 if(NOT M_CORE_GBA)
@@ -443,6 +452,13 @@ endif()
 if(NOT BUILD_GLES2)
 	set(OPENGLES2_LIBRARY "" CACHE PATH "" FORCE)
 endif()
+if(BUILD_GLES3)
+	find_path(OPENGLES3_INCLUDE_DIR NAMES GLES3/gl3.h)
+	find_library(OPENGLES3_LIBRARY NAMES GLESv3 GLESv2)
+	if(NOT OPENGLES3_INCLUDE_DIR OR NOT OPENGLES3_LIBRARY)
+		set(BUILD_GLES3 OFF CACHE BOOL "OpenGL|ES 3 not found" FORCE)
+	endif()
+endif()
 set(WANT_ZLIB ${USE_ZLIB})
 set(WANT_PNG ${USE_PNG})
 set(WANT_LIBZIP ${USE_LIBZIP})
@@ -909,6 +925,10 @@ if(BUILD_GLES2)
 	add_definitions(-DBUILD_GLES2)
 endif()
 
+if(BUILD_GLES3)
+	add_definitions(-DBUILD_GLES3)
+endif()
+
 if(DISABLE_FRONTENDS)
 	set(BUILD_SDL OFF)
 	set(BUILD_QT OFF)
@@ -1062,9 +1082,18 @@ set(CPACK_STRIP_FILES ON)
 
 if(DISTBUILD)
 	set(CPACK_ARCHIVE_COMPONENT_INSTALL ON)
+	if(CMAKE_BUILD_TYPE STREQUAL "RelWithDebInfo" AND BUILD_SHARED)
+		if(NOT APPLE)
+			add_custom_command(TARGET ${BINARY_NAME} POST_BUILD COMMAND "${OBJCOPY}" --only-keep-debug "$<TARGET_FILE:${BINARY_NAME}>" "$<TARGET_FILE:${BINARY_NAME}>.dSYM")
+			add_custom_command(TARGET ${BINARY_NAME} POST_BUILD COMMAND "${STRIP}" -S "$<TARGET_FILE:${BINARY_NAME}>")
+			install(FILES "$<TARGET_FILE:${BINARY_NAME}>.dSYM" DESTINATION ${LIBDIR} COMPONENT lib${BINARY_NAME}-dbg)
+		endif()
+	endif()
 	if(WIN32 OR APPLE)
-		set(CPACK_COMPONENTS_ALL ${BINARY_NAME} ${BINARY_NAME}-qt ${BINARY_NAME}-sdl ${BINARY_NAME}-perf)
+		set(CPACK_COMPONENTS_ALL ${BINARY_NAME} ${BINARY_NAME}-qt ${BINARY_NAME}-sdl ${BINARY_NAME}-qt-dbg ${BINARY_NAME}-sdl-dbg ${BINARY_NAME}-perf)
+		if(APPLE)
 			set(CPACK_COMPONENTS_GROUPING ALL_COMPONENTS_IN_ONE)
+		endif()
 	elseif(3DS)
 		set(CPACK_COMPONENTS_ALL ${BINARY_NAME} ${BINARY_NAME}-3ds ${BINARY_NAME}-perf)
 	elseif(WII)
@@ -1111,6 +1140,19 @@ if(SDL_FOUND)
 	cpack_add_component(${BINARY_NAME}-sdl GROUP sdl)
 endif()
 
+if(DISTBUILD AND CMAKE_BUILD_TYPE STREQUAL "RelWithDebInfo")
+	cpack_add_component_group(debug PARENT_GROUP dev)
+	if(BUILD_SHARED AND NOT IS_EMBEDDED)
+		cpack_add_component(lib${BINARY_NAME}-dbg GROUP debug)
+	endif()
+	if(BUILD_QT)
+		cpack_add_component(${BINARY_NAME}-qt-dbg GROUP debug)
+	endif()
+	if(SDL_FOUND)
+		cpack_add_component(${BINARY_NAME}-sdl-dbg GROUP debug)
+	endif()
+endif()
+
 cpack_add_component_group(test PARENT_GROUP dev)
 cpack_add_component(${BINARY_NAME}-perf GROUP test)
 cpack_add_component(${BINARY_NAME}-fuzz GROUP test)
@@ -1127,6 +1169,9 @@ else()
 	if(BUILD_GLES2)
 		list(APPEND SUMMARY_GL_LIST "OpenGL|ES 2")
 	endif()
+	if(BUILD_GLES3)
+		list(APPEND SUMMARY_GL_LIST "OpenGL|ES 3")
+	endif()
 endif()
 if(NOT SUMMARY_GL_LIST)
 	set(SUMMARY_GL OFF)

doc/medusa-emu-qt.6

@@ -17,6 +17,7 @@
 .Op Fl l Ar loglevel
 .Op Fl p Ar patchfile
 .Op Fl s Ar n
+.Op Fl t Ar statefile
 .Ar file
 .Sh DESCRIPTION
 .Nm
@@ -71,13 +72,7 @@ is a bitmask defining which types of messages to log:
 .It
 32 \(en stub messages for unimplemented features
 .It
-256 \(en in\(hygame errors
+64 \(en in\(hygame errors
-.It
-512 \(en software interrupts
-.It
-1024 \(en emulator status messages
-.It
-2048 \(en serial I/O messages
 .El
 The default is to log warnings, errors, fatal errors, and status messages.
 .It Fl p Ar patchfile , Fl -patch Ar patchfile
@@ -86,6 +81,9 @@ Specify a patch file in BPS, IPS, or UPS format.
 Skip every
 .Ar n
 frames.
+.It Fl t Ar statefile , Fl -savestate Ar statefile
+Load initial game state from
+.Ar statefile .
 .El
 .Sh CONTROLS
 The default controls are as follows:

doc/medusa-emu.6

@@ -18,7 +18,7 @@
 .Op Fl l Ar loglevel
 .Op Fl p Ar patchfile
 .Op Fl s Ar n
-.Op Fl v Ar moviefile
+.Op Fl t Ar statefile
 .Ar file
 .Sh DESCRIPTION
 .Nm
@@ -79,13 +79,7 @@ is a bitmask defining which types of messages to log:
 .It
 32 \(en stub messages for unimplemented features
 .It
-256 \(en in\(hygame errors
+64 \(en in\(hygame errors
-.It
-512 \(en software interrupts
-.It
-1024 \(en emulator status messages
-.It
-2048 \(en serial I/O messages
 .El
 The default is to log warnings, errors, fatal errors, and status messages.
 .It Fl p Ar patchfile , Fl -patch Ar patchfile
@@ -94,9 +88,9 @@ Specify a patch file in BPS, IPS, or UPS format.
 Skip every
 .Ar n
 frames.
-.It Fl v Ar moviefile , Fl -movie Ar moviefile
+.It Fl t Ar statefile , Fl -savestate Ar statefile
-Play back a movie of recording input from
+Load initial game state from
-.Ar moviefile .
+.Ar statefile .
 .El
 .Sh CONTROLS
 The default controls are as follows:

include/mgba-util/gui.h

@@ -47,7 +47,8 @@ enum {
 	BATTERY_HIGH = 3,
 	BATTERY_FULL = 4,
 
-	BATTERY_CHARGING = 8
+	BATTERY_CHARGING = 8,
+	BATTERY_NOT_PRESENT = 16
 };
 
 struct GUIBackground {

include/mgba-util/ring-fifo.h

@@ -20,6 +20,7 @@ struct RingFIFO {
 void RingFIFOInit(struct RingFIFO* buffer, size_t capacity);
 void RingFIFODeinit(struct RingFIFO* buffer);
 size_t RingFIFOCapacity(const struct RingFIFO* buffer);
+size_t RingFIFOSize(const struct RingFIFO* buffer);
 void RingFIFOClear(struct RingFIFO* buffer);
 size_t RingFIFOWrite(struct RingFIFO* buffer, const void* value, size_t length);
 size_t RingFIFORead(struct RingFIFO* buffer, void* output, size_t length);

include/mgba/core/config.h

@@ -33,7 +33,6 @@ struct mCoreOptions {
 	int frameskip;
 	bool rewindEnable;
 	int rewindBufferCapacity;
-	bool rewindSave;
 	float fpsTarget;
 	size_t audioBuffers;
 	unsigned sampleRate;

include/mgba/internal/gb/audio.h

@@ -137,6 +137,9 @@ struct GBAudioNoiseChannel {
 	int length;
 
 	uint32_t lfsr;
+	int nSamples;
+	int samples;
+
 	int8_t sample;
 };
 

include/mgba/internal/gb/gb.h

@@ -177,6 +177,7 @@ void GBGetGameCode(const struct GB* gba, char* out);
 
 void GBTestKeypadIRQ(struct GB* gb);
 
+void GBFrameStarted(struct GB* gb);
 void GBFrameEnded(struct GB* gb);
 
 CXX_GUARD_END

include/mgba/internal/gb/io.h

@@ -102,9 +102,9 @@ enum GBIORegisters {
 	REG_UNK72 = 0x72,
 	REG_UNK73 = 0x73,
 	REG_UNK74 = 0x74,
-	REG_PCM12 = 0x75,
+	REG_UNK75 = 0x75,
-	REG_PCM34 = 0x76,
+	REG_PCM12 = 0x76,
-	REG_UNK77 = 0x77,
+	REG_PCM34 = 0x77,
 	REG_MAX = 0x100
 };
 

include/mgba/internal/gb/serialize.h

@@ -47,7 +47,7 @@ mLOG_DECLARE_CATEGORY(GB_STATE);
  * | 0x00040 - 0x00043: Reserved (DI pending cycles)
  * | 0x00044 - 0x00047: Flags
  *   | bit 0: Is condition met?
- *   | bit 1: Is condition IRQ pending?
+ *   | bit 1: Is IRQ pending?
  *   | bit 2: Double speed
  *   | bit 3: Is EI pending?
  *   | bits 4 - 31: Reserved
@@ -232,7 +232,7 @@ DECL_BITFIELD(GBSerializedCpuFlags, uint32_t);
 DECL_BIT(GBSerializedCpuFlags, Condition, 0);
 DECL_BIT(GBSerializedCpuFlags, IrqPending, 1);
 DECL_BIT(GBSerializedCpuFlags, DoubleSpeed, 2);
-DECL_BIT(GBSerializedCpuFlags, EiPending, 1);
+DECL_BIT(GBSerializedCpuFlags, EiPending, 3);
 
 DECL_BITFIELD(GBSerializedTimerFlags, uint8_t);
 DECL_BIT(GBSerializedTimerFlags, IrqPending, 0);

res/patrons.txt

@@ -1,7 +1,8 @@
+Elijah Chondropoulos
 Jaime J. Denizard
 Fog
 Philip Horton
+Oskenso Kashi
 Rohit Nirmal
 Rhys Powell
-rootfather
 Yuri Kunde Schlesner

src/core/config.c

@@ -331,7 +331,6 @@ void mCoreConfigMap(const struct mCoreConfig* config, struct mCoreOptions* opts)
 	_lookupIntValue(config, "frameskip", &opts->frameskip);
 	_lookupIntValue(config, "volume", &opts->volume);
 	_lookupIntValue(config, "rewindBufferCapacity", &opts->rewindBufferCapacity);
-	_lookupIntValue(config, "rewindSave", &opts->rewindSave);
 	_lookupFloatValue(config, "fpsTarget", &opts->fpsTarget);
 	unsigned audioBuffers;
 	if (_lookupUIntValue(config, "audioBuffers", &audioBuffers)) {
@@ -391,7 +390,6 @@ void mCoreConfigLoadDefaults(struct mCoreConfig* config, const struct mCoreOptio
 	ConfigurationSetIntValue(&config->defaultsTable, 0, "frameskip", opts->frameskip);
 	ConfigurationSetIntValue(&config->defaultsTable, 0, "rewindEnable", opts->rewindEnable);
 	ConfigurationSetIntValue(&config->defaultsTable, 0, "rewindBufferCapacity", opts->rewindBufferCapacity);
-	ConfigurationSetIntValue(&config->defaultsTable, 0, "rewindSave", opts->rewindSave);
 	ConfigurationSetFloatValue(&config->defaultsTable, 0, "fpsTarget", opts->fpsTarget);
 	ConfigurationSetUIntValue(&config->defaultsTable, 0, "audioBuffers", opts->audioBuffers);
 	ConfigurationSetUIntValue(&config->defaultsTable, 0, "sampleRate", opts->sampleRate);

src/core/serialize.c

@@ -359,7 +359,6 @@ bool mCoreSaveStateNamed(struct mCore* core, struct VFile* vf, int flags) {
 		}
 	}
 	if (flags & SAVESTATE_RTC) {
-		mLOG(SAVESTATE, INFO, "Loading RTC");
 		struct mStateExtdataItem item;
 		if (core->rtc.d.serialize) {
 			core->rtc.d.serialize(&core->rtc.d, &item);

src/feature/ffmpeg/ffmpeg-encoder.c

@@ -211,7 +211,6 @@ bool FFmpegEncoderOpen(struct FFmpegEncoder* encoder, const char* outfile) {
 	encoder->currentAudioSample = 0;
 	encoder->currentAudioFrame = 0;
 	encoder->currentVideoFrame = 0;
-	encoder->nextAudioPts = 0;
 
 	AVOutputFormat* oformat = av_guess_format(encoder->containerFormat, 0, 0);
 #ifndef USE_LIBAV
@@ -306,8 +305,8 @@ bool FFmpegEncoderOpen(struct FFmpegEncoder* encoder, const char* outfile) {
 	encoder->video->bit_rate = encoder->videoBitrate;
 	encoder->video->width = encoder->width;
 	encoder->video->height = encoder->height;
-	encoder->videoStream->time_base = (AVRational) { encoder->frameCycles, encoder->cycles };
+	encoder->video->time_base = (AVRational) { encoder->frameCycles, encoder->cycles };
-	encoder->video->time_base = encoder->videoStream->time_base;
+	encoder->video->framerate = (AVRational) { encoder->cycles, encoder->frameCycles };
 	encoder->video->pix_fmt = encoder->pixFormat;
 	encoder->video->gop_size = 60;
 	encoder->video->max_b_frames = 3;
@@ -341,6 +340,10 @@ bool FFmpegEncoderOpen(struct FFmpegEncoder* encoder, const char* outfile) {
 			encoder->video->pix_fmt = AV_PIX_FMT_YUV444P;
 		}
 	}
+	if (strcmp(vcodec->name, "libvpx-vp9") == 0 && encoder->videoBitrate == 0) {
+		av_opt_set(encoder->video->priv_data, "lossless", "1", 0);
+		encoder->video->pix_fmt = AV_PIX_FMT_YUV444P;
+	}
 
 	avcodec_open2(encoder->video, vcodec, 0);
 #if LIBAVCODEC_VERSION_MAJOR >= 55
@@ -466,14 +469,13 @@ void _ffmpegPostAudioFrame(struct mAVStream* stream, int16_t left, int16_t right
 	                          (const uint8_t**) &encoder->audioBuffer, encoder->audioBufferSize / 4);
 #endif
 
-	encoder->audioFrame->pts = av_rescale_q(encoder->currentAudioFrame, encoder->audio->time_base, encoder->audioStream->time_base);
+	encoder->audioFrame->pts = encoder->currentAudioFrame;
 	encoder->currentAudioFrame += samples;
 
 	AVPacket packet;
 	av_init_packet(&packet);
 	packet.data = 0;
 	packet.size = 0;
-	packet.pts = encoder->audioFrame->pts;
 
 	int gotData;
 #ifdef FFMPEG_USE_PACKETS
@@ -483,6 +485,9 @@ void _ffmpegPostAudioFrame(struct mAVStream* stream, int16_t left, int16_t right
 #else
 	avcodec_encode_audio2(encoder->audio, &packet, encoder->audioFrame, &gotData);
 #endif
+	packet.pts = av_rescale_q(encoder->audioFrame->pts, encoder->audio->time_base, encoder->audioStream->time_base);
+	packet.dts = packet.pts;
+
 	if (gotData) {
 		if (encoder->absf) {
 			AVPacket tempPacket;
@@ -541,7 +546,6 @@ void _ffmpegPostVideoFrame(struct mAVStream* stream, const color_t* pixels, size
 	av_frame_make_writable(encoder->videoFrame);
 #endif
 	encoder->videoFrame->pts = av_rescale_q(encoder->currentVideoFrame, encoder->video->time_base, encoder->videoStream->time_base);
-	packet.pts = encoder->videoFrame->pts;
 	++encoder->currentVideoFrame;
 
 	sws_scale(encoder->scaleContext, (const uint8_t* const*) &pixels, (const int*) &stride, 0, encoder->iheight, encoder->videoFrame->data, encoder->videoFrame->linesize);
@@ -553,6 +557,7 @@ void _ffmpegPostVideoFrame(struct mAVStream* stream, const color_t* pixels, size
 #else
 	avcodec_encode_video2(encoder->video, &packet, encoder->videoFrame, &gotData);
 #endif
+	packet.pts = encoder->videoFrame->pts;
 	if (gotData) {
 #ifndef FFMPEG_USE_PACKET_UNREF
 		if (encoder->video->coded_frame->key_frame) {

src/feature/ffmpeg/ffmpeg-encoder.h

@@ -56,7 +56,6 @@ struct FFmpegEncoder {
 	AVFrame* audioFrame;
 	size_t currentAudioSample;
 	int64_t currentAudioFrame;
-	int64_t nextAudioPts; // TODO (0.6): Remove
 #ifdef USE_LIBAVRESAMPLE
 	struct AVAudioResampleContext* resampleContext;
 #else

src/feature/gui/gui-config.c

@@ -108,6 +108,16 @@ void mGUIShowConfig(struct mGUIRunner* runner, struct GUIMenuItem* extra, size_t
 		.title = "Select SGB BIOS path",
 		.data = "sgb.bios",
 	};
+	*GUIMenuItemListAppend(&menu.items) = (struct GUIMenuItem) {
+		.title = "Enable SGB borders",
+		.data = "sgb.borders",
+		.submenu = 0,
+		.state = true,
+		.validStates = (const char*[]) {
+			"Off", "On"
+		},
+		.nStates = 2
+	};
 #endif
 	size_t i;
 	const char* mapNames[GUI_MAX_INPUTS + 1];

src/feature/gui/gui-runner.c

@@ -54,7 +54,8 @@ static const struct mInputPlatformInfo _mGUIKeyInfo = {
 		[mGUI_INPUT_DECREASE_BRIGHTNESS] = "Decrease solar brightness",
 		[mGUI_INPUT_SCREEN_MODE] = "Screen mode",
 		[mGUI_INPUT_SCREENSHOT] = "Take screenshot",
-		[mGUI_INPUT_FAST_FORWARD] = "Fast forward",
+		[mGUI_INPUT_FAST_FORWARD_HELD] = "Fast forward (held)",
+		[mGUI_INPUT_FAST_FORWARD_TOGGLE] = "Fast forward (toggle)",
 	},
 	.nKeys = GUI_INPUT_MAX
 };
@@ -412,6 +413,7 @@ void mGUIRun(struct mGUIRunner* runner, const char* path) {
 		runner->lastFpsCheck = 1000000LL * tv.tv_sec + tv.tv_usec;
 
 		int frame = 0;
+		bool fastForward = false;
 		while (running) {
 			if (runner->running) {
 				running = runner->running(runner);
@@ -442,7 +444,10 @@ void mGUIRun(struct mGUIRunner* runner, const char* path) {
 				mCoreTakeScreenshot(runner->core);
 			}
 			if (runner->setFrameLimiter) {
-				if (heldKeys & (1 << mGUI_INPUT_FAST_FORWARD)) {
+				if (guiKeys & (1 << mGUI_INPUT_FAST_FORWARD_TOGGLE)) {
+					fastForward = !fastForward;
+				}
+				if (fastForward || (heldKeys & (1 << mGUI_INPUT_FAST_FORWARD_HELD))) {
 					runner->setFrameLimiter(runner, false);
 				} else {
 					runner->setFrameLimiter(runner, true);

src/feature/gui/gui-runner.h

@@ -22,7 +22,8 @@ enum mGUIInput {
 	mGUI_INPUT_DECREASE_BRIGHTNESS,
 	mGUI_INPUT_SCREEN_MODE,
 	mGUI_INPUT_SCREENSHOT,
-	mGUI_INPUT_FAST_FORWARD,
+	mGUI_INPUT_FAST_FORWARD_HELD,
+	mGUI_INPUT_FAST_FORWARD_TOGGLE
 };
 
 struct mGUIBackground {

src/feature/gui/remap.c

@@ -69,13 +69,13 @@ void mGUIRemapKeys(struct GUIParams* params, struct mInputMap* map, const struct
 		if (item->data == (void*) (GUI_INPUT_MAX + map->info->nKeys + 2)) {
 			for (i = 0; i < GUIMenuItemListSize(&menu.items); ++i) {
 				item = GUIMenuItemListGetPointer(&menu.items, i);
-				if ((uint32_t) item->data < 1) {
+				if ((uintptr_t) item->data < 1) {
 					continue;
 				}
-				if ((uint32_t) item->data < GUI_INPUT_MAX + 1) {
+				if ((uintptr_t) item->data < GUI_INPUT_MAX + 1) {
-					mInputBindKey(&params->keyMap, keys->id, item->state - 1, (uint32_t) item->data - 1);
+					mInputBindKey(&params->keyMap, keys->id, item->state - 1, (uintptr_t) item->data - 1);
-				} else if ((uint32_t) item->data < GUI_INPUT_MAX + map->info->nKeys + 1) {
+				} else if ((uintptr_t) item->data < GUI_INPUT_MAX + map->info->nKeys + 1) {
-					mInputBindKey(map, keys->id, item->state - 1, (uint32_t) item->data - GUI_INPUT_MAX - 1);
+					mInputBindKey(map, keys->id, item->state - 1, (uintptr_t) item->data - GUI_INPUT_MAX - 1);
 				}
 			}
 			break;

src/feature/imagemagick/imagemagick-gif-encoder.h

@@ -12,9 +12,6 @@ CXX_GUARD_START
 
 #include <mgba/core/interface.h>
 
-#define MAGICKCORE_HDRI_ENABLE 0
-#define MAGICKCORE_QUANTUM_DEPTH 8
-
 #if MAGICKWAND_VERSION_MAJOR >= 7
 #include <MagickWand/MagickWand.h>
 #else

src/feature/thread-proxy.c

@@ -121,7 +121,7 @@ static bool _readData(struct mVideoLogger* logger, void* data, size_t length, bo
 		if (!block || read) {
 			break;
 		}
-		mLOG(GBA_VIDEO, DEBUG, "Proxy thread can't read VRAM. CPU thread asleep?");
+		mLOG(GBA_VIDEO, DEBUG, "Can't read %"PRIz"u bytes. CPU thread asleep?", length);
 		MutexLock(&proxyRenderer->mutex);
 		ConditionWake(&proxyRenderer->fromThreadCond);
 		ConditionWait(&proxyRenderer->toThreadCond, &proxyRenderer->mutex);
@@ -142,7 +142,7 @@ static void _wait(struct mVideoLogger* logger) {
 		_proxyThreadRecover(proxyRenderer);
 		return;
 	}
-	while (proxyRenderer->threadState == PROXY_THREAD_BUSY) {
+	while (RingFIFOSize(&proxyRenderer->dirtyQueue)) {
 		ConditionWake(&proxyRenderer->toThreadCond);
 		ConditionWait(&proxyRenderer->fromThreadCond, &proxyRenderer->mutex);
 	}

src/feature/video-logger.c

@@ -258,6 +258,9 @@ void mVideoLoggerRendererFlush(struct mVideoLogger* logger) {
 		0xDEADBEEF,
 	};
 	logger->writeData(logger, &dirty, sizeof(dirty));
+	if (logger->wait) {
+		logger->wait(logger);
+	}
 }
 
 void mVideoLoggerRendererFinishFrame(struct mVideoLogger* logger) {

src/gb/audio.c

@@ -37,6 +37,8 @@ static bool _updateSweep(struct GBAudioSquareChannel* sweep, bool initial);
 static void _updateSquareSample(struct GBAudioSquareChannel* ch);
 static int32_t _updateSquareChannel(struct GBAudioSquareChannel* ch);
 
+static int8_t _coalesceNoiseChannel(struct GBAudioNoiseChannel* ch);
+
 static void _updateFrame(struct mTiming* timing, void* user, uint32_t cyclesLate);
 static void _updateChannel1(struct mTiming* timing, void* user, uint32_t cyclesLate);
 static void _updateChannel2(struct mTiming* timing, void* user, uint32_t cyclesLate);
@@ -93,7 +95,7 @@ void GBAudioInit(struct GBAudio* audio, size_t samples, uint8_t* nr52, enum GBAu
 	audio->sampleEvent.context = audio;
 	audio->sampleEvent.name = "GB Audio Sample";
 	audio->sampleEvent.callback = _sample;
-	audio->ch1Event.priority = 0x18;
+	audio->sampleEvent.priority = 0x18;
 }
 
 void GBAudioDeinit(struct GBAudio* audio) {
@@ -118,6 +120,7 @@ void GBAudioReset(struct GBAudio* audio) {
 	audio->ch1 = (struct GBAudioSquareChannel) { .envelope = { .dead = 2 } };
 	audio->ch2 = (struct GBAudioSquareChannel) { .envelope = { .dead = 2 } };
 	audio->ch3 = (struct GBAudioWaveChannel) { .bank = 0 };
+	audio->ch4 = (struct GBAudioNoiseChannel) { .nSamples = 0 };
 	// TODO: DMG randomness
 	audio->ch3.wavedata8[0] = 0x00;
 	audio->ch3.wavedata8[1] = 0xFF;
@@ -203,11 +206,6 @@ void GBAudioWriteNR14(struct GBAudio* audio, uint8_t value) {
 	}
 	if (GBAudioRegisterControlIsRestart(value << 8)) {
 		audio->playingCh1 = _resetEnvelope(&audio->ch1.envelope);
-
-		if (audio->playingCh1) {
-			_updateSquareSample(&audio->ch1);
-		}
-
 		audio->ch1.sweep.realFrequency = audio->ch1.control.frequency;
 		_resetSweep(&audio->ch1.sweep);
 		if (audio->playingCh1 && audio->ch1.sweep.shift) {
@@ -219,7 +217,9 @@ void GBAudioWriteNR14(struct GBAudio* audio, uint8_t value) {
 				--audio->ch1.control.length;
 			}
 		}
-		if (audio->playingCh1 && audio->ch1.envelope.dead != 2 && !mTimingIsScheduled(audio->timing, &audio->ch1Event)) {
+		if (audio->playingCh1 && audio->ch1.envelope.dead != 2) {
+			_updateSquareChannel(&audio->ch1);
+			mTimingDeschedule(audio->timing, &audio->ch1Event);
 			mTimingSchedule(audio->timing, &audio->ch1Event, 0);
 		}
 	}
@@ -260,17 +260,15 @@ void GBAudioWriteNR24(struct GBAudio* audio, uint8_t value) {
 	if (GBAudioRegisterControlIsRestart(value << 8)) {
 		audio->playingCh2 = _resetEnvelope(&audio->ch2.envelope);
 
-		if (audio->playingCh2) {
-			_updateSquareSample(&audio->ch2);
-		}
-
 		if (!audio->ch2.control.length) {
 			audio->ch2.control.length = 64;
 			if (audio->ch2.control.stop && !(audio->frame & 1)) {
 				--audio->ch2.control.length;
 			}
 		}
-		if (audio->playingCh2 && audio->ch2.envelope.dead != 2 && !mTimingIsScheduled(audio->timing, &audio->ch2Event)) {
+		if (audio->playingCh2 && audio->ch2.envelope.dead != 2) {
+			_updateSquareChannel(&audio->ch2);
+			mTimingDeschedule(audio->timing, &audio->ch2Event);
 			mTimingSchedule(audio->timing, &audio->ch2Event, 0);
 		}
 	}
@@ -331,6 +329,7 @@ void GBAudioWriteNR34(struct GBAudio* audio, uint8_t value) {
 			}
 		}
 		audio->ch3.window = 0;
+		audio->ch3.sample = 0;
 	}
 	mTimingDeschedule(audio->timing, &audio->ch3Fade);
 	mTimingDeschedule(audio->timing, &audio->ch3Event);
@@ -376,9 +375,9 @@ void GBAudioWriteNR44(struct GBAudio* audio, uint8_t value) {
 		audio->playingCh4 = _resetEnvelope(&audio->ch4.envelope);
 
 		if (audio->ch4.power) {
-			audio->ch4.lfsr = 0x40;
+			audio->ch4.lfsr = 0x7F;
 		} else {
-			audio->ch4.lfsr = 0x4000;
+			audio->ch4.lfsr = 0x7FFF;
 		}
 		if (!audio->ch4.length) {
 			audio->ch4.length = 64;
@@ -386,7 +385,8 @@ void GBAudioWriteNR44(struct GBAudio* audio, uint8_t value) {
 				--audio->ch4.length;
 			}
 		}
-		if (audio->playingCh4 && audio->ch4.envelope.dead != 2 && !mTimingIsScheduled(audio->timing, &audio->ch4Event)) {
+		if (audio->playingCh4 && audio->ch4.envelope.dead != 2) {
+			mTimingDeschedule(audio->timing, &audio->ch4Event);
 			mTimingSchedule(audio->timing, &audio->ch4Event, 0);
 		}
 	}
@@ -563,11 +563,13 @@ void GBAudioUpdateFrame(struct GBAudio* audio, struct mTiming* timing) {
 			--audio->ch4.envelope.nextStep;
 			if (audio->ch4.envelope.nextStep == 0) {
 				int8_t sample = audio->ch4.sample > 0;
+				audio->ch4.samples -= audio->ch4.sample;
 				_updateEnvelope(&audio->ch4.envelope);
 				if (audio->ch4.envelope.dead == 2) {
 					mTimingDeschedule(timing, &audio->ch4Event);
 				}
 				audio->ch4.sample = sample * audio->ch4.envelope.currentVolume;
+				audio->ch4.samples += audio->ch4.sample;
 			}
 		}
 		break;
@@ -575,47 +577,48 @@ void GBAudioUpdateFrame(struct GBAudio* audio, struct mTiming* timing) {
 }
 
 void GBAudioSamplePSG(struct GBAudio* audio, int16_t* left, int16_t* right) {
-	int dcOffset = audio->style == GB_AUDIO_GBA ? 0 : 0x8;
+	int dcOffset = audio->style == GB_AUDIO_GBA ? 0 : -0x8;
 	int sampleLeft = dcOffset;
 	int sampleRight = dcOffset;
 
 	if (audio->playingCh1 && !audio->forceDisableCh[0]) {
 		if (audio->ch1Left) {
-			sampleLeft -= audio->ch1.sample;
+			sampleLeft += audio->ch1.sample;
 		}
 
 		if (audio->ch1Right) {
-			sampleRight -= audio->ch1.sample;
+			sampleRight += audio->ch1.sample;
 		}
 	}
 
 	if (audio->playingCh2 && !audio->forceDisableCh[1]) {
 		if (audio->ch2Left) {
-			sampleLeft -=  audio->ch2.sample;
+			sampleLeft +=  audio->ch2.sample;
 		}
 
 		if (audio->ch2Right) {
-			sampleRight -= audio->ch2.sample;
+			sampleRight += audio->ch2.sample;
 		}
 	}
 
 	if (audio->playingCh3 && !audio->forceDisableCh[2]) {
 		if (audio->ch3Left) {
-			sampleLeft -= audio->ch3.sample;
+			sampleLeft += audio->ch3.sample;
 		}
 
 		if (audio->ch3Right) {
-			sampleRight -= audio->ch3.sample;
+			sampleRight += audio->ch3.sample;
 		}
 	}
 
 	if (audio->playingCh4 && !audio->forceDisableCh[3]) {
+		int8_t sample = _coalesceNoiseChannel(&audio->ch4);
 		if (audio->ch4Left) {
-			sampleLeft -= audio->ch4.sample;
+			sampleLeft += sample;
 		}
 
 		if (audio->ch4Right) {
-			sampleRight -= audio->ch4.sample;
+			sampleRight += sample;
 		}
 	}
 
@@ -631,8 +634,8 @@ static void _sample(struct mTiming* timing, void* user, uint32_t cyclesLate) {
 	int16_t sampleLeft = 0;
 	int16_t sampleRight = 0;
 	GBAudioSamplePSG(audio, &sampleLeft, &sampleRight);
-	sampleLeft = (sampleLeft * audio->masterVolume * 9) >> 7;
+	sampleLeft = (sampleLeft * audio->masterVolume * 6) >> 7;
-	sampleRight = (sampleRight * audio->masterVolume * 9) >> 7;
+	sampleRight = (sampleRight * audio->masterVolume * 6) >> 7;
 
 	mCoreSyncLockAudio(audio->p->sync);
 	unsigned produced;
@@ -744,6 +747,17 @@ static int32_t _updateSquareChannel(struct GBAudioSquareChannel* ch) {
 	}
 }
 
+static int8_t _coalesceNoiseChannel(struct GBAudioNoiseChannel* ch) {
+	if (!ch->nSamples) {
+		return ch->sample;
+	}
+	// TODO keep track of timing
+	int8_t sample = ch->samples / ch->nSamples;
+	ch->nSamples = 0;
+	ch->samples = 0;
+	return sample;
+}
+
 static void _updateEnvelope(struct GBAudioEnvelope* envelope) {
 	if (envelope->direction) {
 		++envelope->currentVolume;
@@ -894,18 +908,17 @@ static void _updateChannel4(struct mTiming* timing, void* user, uint32_t cyclesL
 	struct GBAudio* audio = user;
 	struct GBAudioNoiseChannel* ch = &audio->ch4;
 
-	int32_t baseCycles = ch->ratio ? 2 * ch->ratio : 1;
+	int32_t cycles = ch->ratio ? 2 * ch->ratio : 1;
-	baseCycles <<= ch->frequency;
+	cycles <<= ch->frequency;
-	baseCycles *= 8 * audio->timingFactor;
+	cycles *= 8 * audio->timingFactor;
-	int32_t cycles = 0;
 
-	do {
 	int lsb = ch->lfsr & 1;
 	ch->sample = lsb * ch->envelope.currentVolume;
+	++ch->nSamples;
+	ch->samples += ch->sample;
 	ch->lfsr >>= 1;
 	ch->lfsr ^= (lsb * 0x60) << (ch->power ? 0 : 8);
-		cycles += baseCycles;
+
-	} while (cycles + baseCycles < audio->sampleInterval);
 	mTimingSchedule(timing, &audio->ch4Event, cycles - cyclesLate);
 }
 

src/gb/extra/proxy.c

@@ -252,9 +252,10 @@ void GBVideoProxyRendererFinishFrame(struct GBVideoRenderer* renderer) {
 	struct GBVideoProxyRenderer* proxyRenderer = (struct GBVideoProxyRenderer*) renderer;
 	if (proxyRenderer->logger->block && proxyRenderer->logger->wait) {
 		proxyRenderer->logger->lock(proxyRenderer->logger);
-		proxyRenderer->logger->wait(proxyRenderer->logger);
 	}
+	if (!proxyRenderer->logger->block) {
 		proxyRenderer->backend->finishFrame(proxyRenderer->backend);
+	}
 	mVideoLoggerRendererFinishFrame(proxyRenderer->logger);
 	mVideoLoggerRendererFlush(proxyRenderer->logger);
 	if (proxyRenderer->logger->block && proxyRenderer->logger->wait) {

src/gb/gb.c

@@ -816,6 +816,18 @@ void GBGetGameCode(const struct GB* gb, char* out) {
 	}
 }
 
+void GBFrameStarted(struct GB* gb) {
+	GBTestKeypadIRQ(gb);
+
+	size_t c;
+	for (c = 0; c < mCoreCallbacksListSize(&gb->coreCallbacks); ++c) {
+		struct mCoreCallbacks* callbacks = mCoreCallbacksListGetPointer(&gb->coreCallbacks, c);
+		if (callbacks->videoFrameStarted) {
+			callbacks->videoFrameStarted(callbacks->context);
+		}
+	}
+}
+
 void GBFrameEnded(struct GB* gb) {
 	GBSramClean(gb, gb->video.frameCounter);
 
@@ -828,7 +840,21 @@ void GBFrameEnded(struct GB* gb) {
 		}
 	}
 
-	GBTestKeypadIRQ(gb);
+	// TODO: Move to common code
+	if (gb->stream && gb->stream->postVideoFrame) {
+		const color_t* pixels;
+		size_t stride;
+		gb->video.renderer->getPixels(gb->video.renderer, &stride, (const void**) &pixels);
+		gb->stream->postVideoFrame(gb->stream, pixels, stride);
+	}
+
+	size_t c;
+	for (c = 0; c < mCoreCallbacksListSize(&gb->coreCallbacks); ++c) {
+		struct mCoreCallbacks* callbacks = mCoreCallbacksListGetPointer(&gb->coreCallbacks, c);
+		if (callbacks->videoFrameEnded) {
+			callbacks->videoFrameEnded(callbacks->context);
+		}
+	}
 }
 
 enum GBModel GBNameToModel(const char* model) {

src/gb/mbc.c

@@ -95,17 +95,27 @@ void GBMBCSwitchHalfBank(struct GB* gb, int half, int bank) {
 }
 
 static bool _isMulticart(const uint8_t* mem) {
-	bool success = true;
+	bool success;
 	struct VFile* vf;
 
 	vf = VFileFromConstMemory(&mem[GB_SIZE_CART_BANK0 * 0x10], 1024);
-	success = success && GBIsROM(vf);
+	success = GBIsROM(vf);
 	vf->close(vf);
 
+	if (!success) {
+		return false;
+	}
+
 	vf = VFileFromConstMemory(&mem[GB_SIZE_CART_BANK0 * 0x20], 1024);
-	success = success && GBIsROM(vf);
+	success = GBIsROM(vf);
 	vf->close(vf);
 
+	if (!success) {
+		vf = VFileFromConstMemory(&mem[GB_SIZE_CART_BANK0 * 0x30], 1024);
+		success = GBIsROM(vf);
+		vf->close(vf);
+	}
+	
 	return success;
 }
 

src/gb/renderers/software.c

@@ -193,7 +193,7 @@ static void GBVideoSoftwareRendererInit(struct GBVideoRenderer* renderer, enum G
 	softwareRenderer->scx = 0;
 	softwareRenderer->wy = 0;
 	softwareRenderer->currentWy = 0;
-	softwareRenderer->lastY = 0;
+	softwareRenderer->lastY = GB_VIDEO_VERTICAL_PIXELS;
 	softwareRenderer->hasWindow = false;
 	softwareRenderer->wx = 0;
 	softwareRenderer->model = model;

src/gb/video.c

@@ -337,14 +337,6 @@ void _updateFrameCount(struct mTiming* timing, void* context, uint32_t cyclesLat
 		return;
 	}
 
-	size_t c;
-	for (c = 0; c < mCoreCallbacksListSize(&video->p->coreCallbacks); ++c) {
-		struct mCoreCallbacks* callbacks = mCoreCallbacksListGetPointer(&video->p->coreCallbacks, c);
-		if (callbacks->videoFrameEnded) {
-			callbacks->videoFrameEnded(callbacks->context);
-		}
-	}
-
 	GBFrameEnded(video->p);
 	mCoreSyncPostFrame(video->p->sync);
 	--video->frameskipCounter;
@@ -354,24 +346,10 @@ void _updateFrameCount(struct mTiming* timing, void* context, uint32_t cyclesLat
 	}
 	++video->frameCounter;
 
-	// TODO: Move to common code
-	if (video->p->stream && video->p->stream->postVideoFrame) {
-		const color_t* pixels;
-		size_t stride;
-		video->renderer->getPixels(video->renderer, &stride, (const void**) &pixels);
-		video->p->stream->postVideoFrame(video->p->stream, pixels, stride);
-	}
-
 	if (!GBRegisterLCDCIsEnable(video->p->memory.io[REG_LCDC])) {
 		mTimingSchedule(timing, &video->frameEvent, GB_VIDEO_TOTAL_LENGTH);
 	}
-
+	GBFrameStarted(video->p);
-	for (c = 0; c < mCoreCallbacksListSize(&video->p->coreCallbacks); ++c) {
-		struct mCoreCallbacks* callbacks = mCoreCallbacksListGetPointer(&video->p->coreCallbacks, c);
-		if (callbacks->videoFrameStarted) {
-			callbacks->videoFrameStarted(callbacks->context);
-		}
-	}
 }
 
 static void _cleanOAM(struct GBVideo* video, int y) {

src/gba/audio.c

@@ -253,7 +253,7 @@ static int _applyBias(struct GBAAudio* audio, int sample) {
 	} else if (sample < 0) {
 		sample = 0;
 	}
-	return ((sample - GBARegisterSOUNDBIASGetBias(audio->soundbias)) * audio->masterVolume) >> 2;
+	return ((sample - GBARegisterSOUNDBIASGetBias(audio->soundbias)) * audio->masterVolume * 3) >> 4;
 }
 
 static void _sample(struct mTiming* timing, void* user, uint32_t cyclesLate) {

src/gba/extra/proxy.c

@@ -117,6 +117,7 @@ void GBAVideoProxyRendererInit(struct GBAVideoRenderer* renderer) {
 	struct GBAVideoProxyRenderer* proxyRenderer = (struct GBAVideoProxyRenderer*) renderer;
 
 	_init(proxyRenderer);
+	_reset(proxyRenderer);
 
 	proxyRenderer->backend->init(proxyRenderer->backend);
 }
@@ -150,7 +151,7 @@ static bool _parsePacket(struct mVideoLogger* logger, const struct mVideoLoggerD
 		}
 		break;
 	case DIRTY_OAM:
-		if (item->address < SIZE_PALETTE_RAM) {
+		if (item->address < SIZE_OAM) {
 			logger->oam[item->address] = item->value;
 			proxyRenderer->backend->writeOAM(proxyRenderer->backend, item->address);
 		}
@@ -159,6 +160,8 @@ static bool _parsePacket(struct mVideoLogger* logger, const struct mVideoLoggerD
 		if (item->address <= SIZE_VRAM - 0x1000) {
 			logger->readData(logger, &logger->vram[item->address >> 1], 0x1000, true);
 			proxyRenderer->backend->writeVRAM(proxyRenderer->backend, item->address);
+		} else {
+			logger->readData(logger, NULL, 0x1000, true);
 		}
 		break;
 	case DIRTY_SCANLINE:
@@ -267,9 +270,10 @@ void GBAVideoProxyRendererFinishFrame(struct GBAVideoRenderer* renderer) {
 	struct GBAVideoProxyRenderer* proxyRenderer = (struct GBAVideoProxyRenderer*) renderer;
 	if (proxyRenderer->logger->block && proxyRenderer->logger->wait) {
 		proxyRenderer->logger->lock(proxyRenderer->logger);
-		proxyRenderer->logger->wait(proxyRenderer->logger);
 	}
+	if (!proxyRenderer->logger->block) {
 		proxyRenderer->backend->finishFrame(proxyRenderer->backend);
+	}
 	mVideoLoggerRendererFinishFrame(proxyRenderer->logger);
 	mVideoLoggerRendererFlush(proxyRenderer->logger);
 	if (proxyRenderer->logger->block && proxyRenderer->logger->wait) {
@@ -283,7 +287,6 @@ static void GBAVideoProxyRendererGetPixels(struct GBAVideoRenderer* renderer, si
 		proxyRenderer->logger->lock(proxyRenderer->logger);
 		// Insert an extra item into the queue to make sure it gets flushed
 		mVideoLoggerRendererFlush(proxyRenderer->logger);
-		proxyRenderer->logger->wait(proxyRenderer->logger);
 	}
 	proxyRenderer->backend->getPixels(proxyRenderer->backend, stride, pixels);
 	if (proxyRenderer->logger->block && proxyRenderer->logger->wait) {
@@ -297,7 +300,6 @@ static void GBAVideoProxyRendererPutPixels(struct GBAVideoRenderer* renderer, si
 		proxyRenderer->logger->lock(proxyRenderer->logger);
 		// Insert an extra item into the queue to make sure it gets flushed
 		mVideoLoggerRendererFlush(proxyRenderer->logger);
-		proxyRenderer->logger->wait(proxyRenderer->logger);
 	}
 	proxyRenderer->backend->putPixels(proxyRenderer->backend, stride, pixels);
 	if (proxyRenderer->logger->block && proxyRenderer->logger->wait) {

src/platform/3ds/main.c

@@ -194,7 +194,9 @@ static void _drawStart(void) {
 	C3D_FrameBegin(flags);
 	ctrStartFrame();
 
+	C3D_FrameDrawOn(bottomScreen[doubleBuffer]);
 	C3D_RenderTargetClear(bottomScreen[doubleBuffer], C3D_CLEAR_COLOR, 0, 0);
+	C3D_FrameDrawOn(topScreen[doubleBuffer]);
 	C3D_RenderTargetClear(topScreen[doubleBuffer], C3D_CLEAR_COLOR, 0, 0);
 }
 

src/platform/libretro/libretro.c

@@ -66,6 +66,8 @@ static struct mImageSource imageSource;
 static uint32_t* camData = NULL;
 static unsigned camWidth;
 static unsigned camHeight;
+static unsigned imcapWidth;
+static unsigned imcapHeight;
 static size_t camStride;
 
 static void _reloadSettings(void) {
@@ -604,7 +606,9 @@ void retro_cheat_set(unsigned index, bool enabled, const char* code) {
 		cheatSet = device->createSet(device, NULL);
 		mCheatAddSet(device, cheatSet);
 	}
-	// Convert the super wonky unportable libretro format to something normal
+// Convert the super wonky unportable libretro format to something normal
+#ifdef M_CORE_GBA
+	if (core->platform(core) == PLATFORM_GBA) {
 		char realCode[] = "XXXXXXXX XXXXXXXX";
 		size_t len = strlen(code) + 1; // Include null terminator
 		size_t i, pos;
@@ -622,6 +626,29 @@ void retro_cheat_set(unsigned index, bool enabled, const char* code) {
 			}
 			++pos;
 		}
+	}
+#endif
+#ifdef M_CORE_GB
+	if (core->platform(core) == PLATFORM_GB) {
+		char realCode[] = "XXX-XXX-XXX";
+		size_t len = strlen(code) + 1; // Include null terminator
+		size_t i, pos;
+		for (i = 0, pos = 0; i < len; ++i) {
+			if (isspace((int) code[i]) || code[i] == '+') {
+				realCode[pos] = '\0';
+			} else {
+				realCode[pos] = code[i];
+			}
+			if (pos == 11 || !realCode[pos]) {
+				realCode[pos] = '\0';
+				mCheatAddLine(cheatSet, realCode, 0);
+				pos = 0;
+				continue;
+			}
+			++pos;
+		}
+	}
+#endif
 }
 
 unsigned retro_get_region(void) {
@@ -777,20 +804,40 @@ static uint8_t _readLux(struct GBALuminanceSource* lux) {
 }
 
 static void _updateCamera(const uint32_t* buffer, unsigned width, unsigned height, size_t pitch) {
-	if (!camData || width != camWidth || height != camHeight) {
+	if (!camData || width > camWidth || height > camHeight) {
-		camData = malloc(sizeof(*buffer) * height * pitch);
+		if (camData) {
-		camWidth = width;
+			free(camData);
-		camHeight = height;
+		}
-		camStride = pitch / sizeof(*buffer);
+		unsigned bufPitch = pitch / sizeof(*buffer);
+		unsigned bufHeight = height;
+		if (imcapWidth > bufPitch) {
+			bufPitch = imcapWidth;
+		}
+		if (imcapHeight > bufHeight) {
+			bufHeight = imcapHeight;
+		}
+		camData = malloc(sizeof(*buffer) * bufHeight * bufPitch);
+		memset(camData, 0xFF, sizeof(*buffer) * bufHeight * bufPitch);
+		camWidth = width;
+		camHeight = bufHeight;
+		camStride = bufPitch;
+	}
+	size_t i;
+	for (i = 0; i < height; ++i) {
+		memcpy(&camData[camStride * i], &buffer[pitch * i / sizeof(*buffer)], pitch);
 	}
-	memcpy(camData, buffer, sizeof(*buffer) * height * pitch);
 }
 
 static void _startImage(struct mImageSource* image, unsigned w, unsigned h, int colorFormats) {
 	UNUSED(image);
 	UNUSED(colorFormats);
 
+	if (camData) {
+		free(camData);
+	}
 	camData = NULL;
+	imcapWidth = w;
+	imcapHeight = h;
 	cam.start();
 }
 
@@ -803,8 +850,18 @@ static void _requestImage(struct mImageSource* image, const void** buffer, size_
 	UNUSED(image);
 	if (!camData) {
 		cam.start();
+		*buffer = NULL;
+		return;
 	}
-	*buffer = camData;
+	size_t offset = 0;
+	if (imcapWidth < camWidth) {
+		offset += (camWidth - imcapWidth) / 2;
+	}
+	if (imcapHeight < camHeight) {
+		offset += (camHeight - imcapHeight) / 2 * camStride;
+	}
+
+	*buffer = &camData[offset];
 	*stride = camStride;
 	*colorFormat = mCOLOR_XRGB8;
 }

src/platform/psp2/psp2-context.c

@@ -97,18 +97,23 @@ void mPSP2MapKey(struct mInputMap* map, int pspKey, int key) {
 static THREAD_ENTRY _audioThread(void* context) {
 	struct mPSP2AudioContext* audio = (struct mPSP2AudioContext*) context;
 	uint32_t zeroBuffer[PSP2_SAMPLES] = {0};
+	void* buffer = zeroBuffer;
 	int audioPort = sceAudioOutOpenPort(SCE_AUDIO_OUT_PORT_TYPE_MAIN, PSP2_SAMPLES, 48000, SCE_AUDIO_OUT_MODE_STEREO);
 	while (audio->running) {
 		MutexLock(&audio->mutex);
-		void* buffer;
+		if (buffer != zeroBuffer) {
+			// Can only happen in successive iterations
+			audio->samples -= PSP2_SAMPLES;
+			ConditionWake(&audio->cond);
+		}
 		if (audio->samples >= PSP2_SAMPLES) {
 			buffer = &audio->buffer[audio->readOffset];
-			audio->samples -= PSP2_SAMPLES;
 			audio->readOffset += PSP2_SAMPLES;
 			if (audio->readOffset >= PSP2_AUDIO_BUFFER_SIZE) {
 				audio->readOffset = 0;
 			}
-			ConditionWake(&audio->cond);
+			// Don't mark samples as read until the next loop iteration to prevent
+			// writing to the buffer while being read (see above)
 		} else {
 			buffer = zeroBuffer;
 		}
@@ -280,6 +285,13 @@ uint16_t mPSP2PollInput(struct mGUIRunner* runner) {
 
 void mPSP2SetFrameLimiter(struct mGUIRunner* runner, bool limit) {
 	UNUSED(runner);
+	if (!frameLimiter && limit) {
+		MutexLock(&audioContext.mutex);
+		while (audioContext.samples) {
+			ConditionWait(&audioContext.cond, &audioContext.mutex);
+		}
+		MutexUnlock(&audioContext.mutex);
+	}
 	frameLimiter = limit;
 }
 

src/platform/qt/CMakeLists.txt

@@ -271,7 +271,7 @@ endif()
 qt5_wrap_ui(UI_SRC ${UI_FILES})
 
 add_executable(${BINARY_NAME}-qt WIN32 MACOSX_BUNDLE main.cpp ${CMAKE_SOURCE_DIR}/res/${BINARY_NAME}.icns ${SOURCE_FILES} ${PLATFORM_SRC} ${UI_SRC} ${AUDIO_SRC} ${RESOURCES})
-set_target_properties(${BINARY_NAME}-qt PROPERTIES MACOSX_BUNDLE_INFO_PLIST ${CMAKE_SOURCE_DIR}/res/info.plist.in COMPILE_DEFINITIONS "${FEATURE_DEFINES};${FUNCTION_DEFINES};${OS_DEFINES};${QT_DEFINES}")
+set_target_properties(${BINARY_NAME}-qt PROPERTIES MACOSX_BUNDLE_INFO_PLIST ${CMAKE_SOURCE_DIR}/res/info.plist.in COMPILE_DEFINITIONS "${FEATURE_DEFINES};${FUNCTION_DEFINES};${OS_DEFINES};${QT_DEFINES}" COMPILE_OPTIONS "${FEATURE_FLAGS}")
 
 list(APPEND QT_LIBRARIES Qt5::Widgets)
 if(BUILD_GL OR BUILD_GLES2)
@@ -350,3 +350,11 @@ elseif(WIN32)
 		install(CODE "execute_process(COMMAND \"${BASH}\" \"${CMAKE_SOURCE_DIR}/tools/deploy-win.sh\" \"${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}.exe\" \"\${CMAKE_INSTALL_PREFIX}\" \"\$ENV{PWD}\" WORKING_DIRECTORY \"${CMAKE_BINARY_DIR}\")" COMPONENT ${BINARY_NAME}-qt)
 	endif()
 endif()
+
+if(DISTBUILD AND CMAKE_BUILD_TYPE STREQUAL "RelWithDebInfo")
+	if(NOT APPLE)
+		add_custom_command(TARGET ${BINARY_NAME}-qt POST_BUILD COMMAND "${OBJCOPY}" --only-keep-debug "$<TARGET_FILE:${BINARY_NAME}-qt>" "$<TARGET_FILE:${BINARY_NAME}-qt>.dSYM")
+		add_custom_command(TARGET ${BINARY_NAME}-qt POST_BUILD COMMAND "${STRIP}" -S "$<TARGET_FILE:${BINARY_NAME}-qt>")
+		install(FILES "$<TARGET_FILE:${BINARY_NAME}-qt>.dSYM" DESTINATION ${CMAKE_INSTALL_BINDIR} COMPONENT ${BINARY_NAME}-qt-dbg)
+	endif()
+endif()

src/platform/qt/CoreController.cpp

@@ -46,6 +46,7 @@ CoreController::CoreController(mCore* core, QObject* parent)
 	m_buffers[0].fill(0xFF);
 	m_buffers[1].fill(0xFF);
 	m_activeBuffer = &m_buffers[0];
+	m_completeBuffer = m_buffers[0];
 
 	m_threadContext.core->setVideoBuffer(m_threadContext.core, reinterpret_cast<color_t*>(m_activeBuffer->data()), size.width());
 
@@ -209,12 +210,9 @@ CoreController::~CoreController() {
 	m_threadContext.core->deinit(m_threadContext.core);
 }
 
-color_t* CoreController::drawContext() {
+const color_t* CoreController::drawContext() {
 	QMutexLocker locker(&m_mutex);
-	if (!m_completeBuffer) {
+	return reinterpret_cast<const color_t*>(m_completeBuffer.constData());
-		return nullptr;
-	}
-	return reinterpret_cast<color_t*>(m_completeBuffer->data());
 }
 
 bool CoreController::isPaused() {
@@ -762,7 +760,7 @@ void CoreController::updateKeys() {
 
 void CoreController::finishFrame() {
 	QMutexLocker locker(&m_mutex);
-	m_completeBuffer = m_activeBuffer;
+	memcpy(m_completeBuffer.data(), m_activeBuffer->constData(), m_activeBuffer->size());
 
 	// TODO: Generalize this to triple buffering?
 	m_activeBuffer = &m_buffers[0];
@@ -770,7 +768,7 @@ void CoreController::finishFrame() {
 		m_activeBuffer = &m_buffers[1];
 	}
 	// Copy contents to avoid issues when doing frameskip
-	memcpy(m_activeBuffer->data(), m_completeBuffer->data(), m_activeBuffer->size());
+	memcpy(m_activeBuffer->data(), m_completeBuffer.constData(), m_activeBuffer->size());
 	m_threadContext.core->setVideoBuffer(m_threadContext.core, reinterpret_cast<color_t*>(m_activeBuffer->data()), screenDimensions().width());
 
 	for (auto& action : m_frameActions) {

src/platform/qt/CoreController.h

@@ -58,7 +58,7 @@ public:
 
 	mCoreThread* thread() { return &m_threadContext; }
 
-	color_t* drawContext();
+	const color_t* drawContext();
 
 	bool isPaused();
 	bool hasStarted();
@@ -170,7 +170,7 @@ private:
 
 	QByteArray m_buffers[2];
 	QByteArray* m_activeBuffer;
-	QByteArray* m_completeBuffer = nullptr;
+	QByteArray m_completeBuffer;
 
 	std::unique_ptr<mCacheSet> m_cacheSet;
 	std::unique_ptr<Override> m_override;

src/platform/qt/DisplayQt.cpp

@@ -52,7 +52,7 @@ void DisplayQt::filter(bool filter) {
 
 void DisplayQt::framePosted() {
 	update();
-	color_t* buffer = m_context->drawContext();
+	const color_t* buffer = m_context->drawContext();
 	if (const_cast<const QImage&>(m_backing).bits() == reinterpret_cast<const uchar*>(buffer)) {
 		return;
 	}

src/platform/qt/VideoView.cpp

@@ -51,6 +51,7 @@ VideoView::VideoView(QWidget* parent)
 	if (s_acodecMap.empty()) {
 		s_acodecMap["mp3"] = "libmp3lame";
 		s_acodecMap["opus"] = "libopus";
+		s_acodecMap["vorbis"] = "libvorbis";
 		s_acodecMap["uncompressed"] = "pcm_s16le";
 	}
 	if (s_vcodecMap.empty()) {
@@ -101,7 +102,7 @@ VideoView::VideoView(QWidget* parent)
 		.container = "MKV",
 		.vcodec = "h.264",
 		.acodec = "FLAC",
-		.vbr = 0,
+		.vbr = -1,
 		.abr = 0,
 		.dims = QSize(),
 	});
@@ -170,8 +171,8 @@ void VideoView::updatePresets() {
 
 	addPreset(m_ui.presetWebM, {
 		.container = "WebM",
-		.vcodec = "VP8",
+		.vcodec = "VP9",
-		.acodec = "Vorbis",
+		.acodec = "Opus",
 		.vbr = 800,
 		.abr = 128
 	});
@@ -181,7 +182,7 @@ void VideoView::updatePresets() {
 			.container = "MKV",
 			.vcodec = "h.264",
 			.acodec = "FLAC",
-			.vbr = 0,
+			.vbr = -1,
 			.abr = 0,
 			.dims = QSize(m_nativeWidth, m_nativeHeight)
 		});
@@ -315,7 +316,7 @@ void VideoView::setAudioBitrate(int br, bool manual) {
 }
 
 void VideoView::setVideoBitrate(int br, bool manual) {
-	m_vbr = br * 1000;
+	m_vbr = br >= 0 ? br * 1000 : 0;
 	FFmpegEncoderSetVideo(&m_encoder, m_videoCodecCstr, m_vbr);
 	validateSettings();
 	if (manual) {

src/platform/qt/VideoView.ui

@@ -106,7 +106,7 @@
         <item>
          <widget class="QRadioButton" name="presetHQ">
           <property name="text">
-           <string>High Quality</string>
+           <string>High &amp;Quality</string>
           </property>
           <attribute name="buttonGroup">
            <string notr="true">presets</string>
@@ -116,7 +116,7 @@
         <item>
          <widget class="QRadioButton" name="presetYoutube">
           <property name="text">
-           <string>YouTube</string>
+           <string>&amp;YouTube</string>
           </property>
           <attribute name="buttonGroup">
            <string notr="true">presets</string>
@@ -136,7 +136,7 @@
         <item>
          <widget class="QRadioButton" name="presetLossless">
           <property name="text">
-           <string>Lossless</string>
+           <string>&amp;Lossless</string>
           </property>
           <property name="checked">
            <bool>true</bool>
@@ -153,7 +153,7 @@
         <item>
          <widget class="QRadioButton" name="preset1080">
           <property name="text">
-           <string>1080p</string>
+           <string>&amp;1080p</string>
           </property>
           <attribute name="buttonGroup">
            <string notr="true">resolutions</string>
@@ -163,7 +163,7 @@
         <item>
          <widget class="QRadioButton" name="preset720">
           <property name="text">
-           <string>720p</string>
+           <string>&amp;720p</string>
           </property>
           <attribute name="buttonGroup">
            <string notr="true">resolutions</string>
@@ -173,7 +173,7 @@
         <item>
          <widget class="QRadioButton" name="preset480">
           <property name="text">
-           <string>480p</string>
+           <string>&amp;480p</string>
           </property>
           <attribute name="buttonGroup">
            <string notr="true">resolutions</string>
@@ -186,7 +186,7 @@
            <bool>false</bool>
           </property>
           <property name="text">
-           <string>Native</string>
+           <string>&amp;Native</string>
           </property>
           <property name="checked">
            <bool>true</bool>
@@ -274,6 +274,11 @@
              <string>VP8</string>
             </property>
            </item>
+           <item>
+            <property name="text">
+             <string>VP9</string>
+            </property>
+           </item>
            <item>
             <property name="text">
              <string>FFV1</string>

src/platform/sdl/CMakeLists.txt

@@ -105,3 +105,11 @@ install(TARGETS ${BINARY_NAME}-sdl DESTINATION ${CMAKE_INSTALL_BINDIR} COMPONENT
 if(UNIX)
 	install(FILES ${CMAKE_SOURCE_DIR}/doc/${BINARY_NAME}.6 DESTINATION ${MANDIR}/man6 COMPONENT ${BINARY_NAME}-sdl)
 endif()
+
+if(DISTBUILD AND CMAKE_BUILD_TYPE STREQUAL "RelWithDebInfo")
+	if(NOT APPLE)
+		add_custom_command(TARGET ${BINARY_NAME}-sdl POST_BUILD COMMAND "${OBJCOPY}" --only-keep-debug "$<TARGET_FILE:${BINARY_NAME}-sdl>" "$<TARGET_FILE:${BINARY_NAME}-sdl>.dSYM")
+		add_custom_command(TARGET ${BINARY_NAME}-sdl POST_BUILD COMMAND "${STRIP}" -S "$<TARGET_FILE:${BINARY_NAME}-sdl>")
+		install(FILES "$<TARGET_FILE:${BINARY_NAME}-sdl>.dSYM" DESTINATION ${CMAKE_INSTALL_BINDIR} COMPONENT ${BINARY_NAME}-sdl-dbg)
+	endif()
+endif()

src/platform/sdl/main.c

@@ -57,7 +57,6 @@ int main(int argc, char** argv) {
 		.useBios = true,
 		.rewindEnable = true,
 		.rewindBufferCapacity = 600,
-		.rewindSave = true,
 		.audioBuffers = 1024,
 		.videoSync = false,
 		.audioSync = true,

src/platform/switch/CMakeLists.txt

@@ -8,7 +8,7 @@ set(OS_DEFINES USE_VFS_FILE IOAPI_NO_64)
 list(APPEND CORE_VFS_SRC ${CMAKE_SOURCE_DIR}/src/util/vfs/vfs-file.c ${CMAKE_SOURCE_DIR}/src/util/vfs/vfs-dirent.c)
 list(APPEND GUI_SRC ${CMAKE_CURRENT_SOURCE_DIR}/gui-font.c)
 
-include_directories(AFTER ${OPENGLES2_INCLUDE_DIR} ${OPENGL_EGL_INCLUDE_DIR})
+include_directories(AFTER ${OPENGLES3_INCLUDE_DIR} ${OPENGL_EGL_INCLUDE_DIR})
 
 file(GLOB OS_SRC ${CMAKE_SOURCE_DIR}/src/platform/wii/wii-*.c)
 if(${CMAKE_BUILD_TYPE} STREQUAL Debug OR ${CMAKE_BUILD_TYPE} STREQUAL RelWithDebInfo)
@@ -34,7 +34,7 @@ endif()
 
 add_executable(${BINARY_NAME}.elf ${GUI_SRC} ${PLATFORM_SRC} main.c)
 set_target_properties(${BINARY_NAME}.elf PROPERTIES COMPILE_DEFINITIONS "${OS_DEFINES};${FEATURE_DEFINES};${FUNCTION_DEFINES}")
-target_link_libraries(${BINARY_NAME}.elf ${BINARY_NAME} ${M_LIBRARY} ${EGL_LIBRARY} ${OPENGLES2_LIBRARY} ${GLAPI_LIBRARY} ${NOUVEAU_LIBRARY} stdc++ ${OS_LIB})
+target_link_libraries(${BINARY_NAME}.elf ${BINARY_NAME} ${M_LIBRARY} ${EGL_LIBRARY} ${OPENGLES3_LIBRARY} ${GLAPI_LIBRARY} ${NOUVEAU_LIBRARY} stdc++ ${OS_LIB})
 
 add_custom_command(OUTPUT control.nacp
                    COMMAND ${NACPTOOL} --create "${PROJECT_NAME}" "endrift" "${VERSION_STRING}" control.nacp)

src/platform/switch/gui-font.c

@@ -9,7 +9,7 @@
 #include <mgba-util/string.h>
 #include <mgba-util/vfs.h>
 
-#include <GLES2/gl2.h>
+#include <GLES3/gl3.h>
 
 #define GLYPH_HEIGHT 24
 #define CELL_HEIGHT 32
@@ -58,7 +58,7 @@ struct GUIFont {
 	GLuint font;
 	GLuint program;
 	GLuint vbo;
-	GLuint offsetLocation;
+	GLuint vao;
 	GLuint texLocation;
 	GLuint dimsLocation;
 	GLuint transformLocation;
@@ -166,12 +166,16 @@ struct GUIFont* GUIFontCreate(void) {
 	font->originLocation = glGetUniformLocation(font->program, "origin");
 	font->glyphLocation = glGetUniformLocation(font->program, "glyph");
 	font->cutoffLocation = glGetUniformLocation(font->program, "cutoff");
-	font->offsetLocation = glGetAttribLocation(font->program, "offset");
+	GLuint offsetLocation = glGetAttribLocation(font->program, "offset");
 
 	glGenBuffers(1, &font->vbo);
+	glGenVertexArrays(1, &font->vao);
+	glBindVertexArray(font->vao);
 	glBindBuffer(GL_ARRAY_BUFFER, font->vbo);
 	glBufferData(GL_ARRAY_BUFFER, sizeof(_offsets), _offsets, GL_STATIC_DRAW);
-	glBindBuffer(GL_ARRAY_BUFFER, 0);
+	glVertexAttribPointer(offsetLocation, 2, GL_FLOAT, GL_FALSE, 0, NULL);
+	glEnableVertexAttribArray(offsetLocation);
+	glBindVertexArray(0);
 
 	return font;
 }
@@ -180,6 +184,7 @@ void GUIFontDestroy(struct GUIFont* font) {
 	glDeleteBuffers(1, &font->vbo);
 	glDeleteProgram(font->program);
 	glDeleteTextures(1, &font->font);
+	glDeleteVertexArrays(1, &font->vao);
 	free(font);
 }
 
@@ -222,9 +227,9 @@ void GUIFontDrawGlyph(const struct GUIFont* font, int x, int y, uint32_t color,
 	struct GUIFontGlyphMetric metric = defaultFontMetrics[glyph];
 
 	glUseProgram(font->program);
+	glBindVertexArray(font->vao);
 	glActiveTexture(GL_TEXTURE0);
 	glBindTexture(GL_TEXTURE_2D, font->font);
-	glBindBuffer(GL_ARRAY_BUFFER, font->vbo);
 
 	glEnable(GL_BLEND);
 	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
@@ -235,19 +240,15 @@ void GUIFontDrawGlyph(const struct GUIFont* font, int x, int y, uint32_t color,
 	glUniform3f(font->originLocation, x, y - GLYPH_HEIGHT + metric.padding.top * 2, 0);
 	glUniformMatrix2fv(font->transformLocation, 1, GL_FALSE, (float[4]) {1.0, 0.0, 0.0, 1.0});
 
-	glVertexAttribPointer(font->offsetLocation, 2, GL_FLOAT, GL_FALSE, 0, NULL);
-	glEnableVertexAttribArray(font->offsetLocation);
-
 	glUniform1f(font->cutoffLocation, 0.1f);
 	glUniform4f(font->colorLocation, 0.0, 0.0, 0.0, ((color >> 24) & 0xFF) / 128.0f);
 	glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
 
 	glUniform1f(font->cutoffLocation, 0.7f);
-	glUniform4f(font->colorLocation, ((color >> 16) & 0xFF) / 255.0f, ((color >> 8) & 0xFF) / 255.0f, (color & 0xFF) / 255.0f, ((color >> 24) & 0xFF) / 255.0f);
+	glUniform4f(font->colorLocation, (color & 0xFF) / 255.0f, ((color >> 8) & 0xFF) / 255.0f, ((color >> 16) & 0xFF) / 255.0f, ((color >> 24) & 0xFF) / 255.0f);
 	glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
 
-	glDisableVertexAttribArray(font->offsetLocation);
+	glBindVertexArray(0);
-	glBindBuffer(GL_ARRAY_BUFFER, 0);
 	glUseProgram(0);
 }
 
@@ -291,9 +292,9 @@ void GUIFontDrawIcon(const struct GUIFont* font, int x, int y, enum GUIAlignment
 	}
 
 	glUseProgram(font->program);
+	glBindVertexArray(font->vao);
 	glActiveTexture(GL_TEXTURE0);
 	glBindTexture(GL_TEXTURE_2D, font->font);
-	glBindBuffer(GL_ARRAY_BUFFER, font->vbo);
 
 	glEnable(GL_BLEND);
 	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
@@ -304,19 +305,15 @@ void GUIFontDrawIcon(const struct GUIFont* font, int x, int y, enum GUIAlignment
 	glUniform3f(font->originLocation, x, y, 0);
 	glUniformMatrix2fv(font->transformLocation, 1, GL_FALSE, (float[4]) {hFlip, 0.0, 0.0, vFlip});
 
-	glVertexAttribPointer(font->offsetLocation, 2, GL_FLOAT, GL_FALSE, 0, NULL);
-	glEnableVertexAttribArray(font->offsetLocation);
-
 	glUniform1f(font->cutoffLocation, 0.1f);
 	glUniform4f(font->colorLocation, 0.0, 0.0, 0.0, ((color >> 24) & 0xFF) / 128.0f);
 	glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
 
 	glUniform1f(font->cutoffLocation, 0.7f);
-	glUniform4f(font->colorLocation, ((color >> 16) & 0xFF) / 255.0f, ((color >> 8) & 0xFF) / 255.0f, (color & 0xFF) / 255.0f, ((color >> 24) & 0xFF) / 255.0f);
+	glUniform4f(font->colorLocation, (color & 0xFF) / 255.0f, ((color >> 8) & 0xFF) / 255.0f, ((color >> 16) & 0xFF) / 255.0f, ((color >> 24) & 0xFF) / 255.0f);
 	glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
 
-	glDisableVertexAttribArray(font->offsetLocation);
+	glBindVertexArray(0);
-	glBindBuffer(GL_ARRAY_BUFFER, 0);
 	glUseProgram(0);
 }
 
@@ -334,9 +331,9 @@ void GUIFontDrawIconSize(const struct GUIFont* font, int x, int y, int w, int h,
 	}
 
 	glUseProgram(font->program);
+	glBindVertexArray(font->vao);
 	glActiveTexture(GL_TEXTURE0);
 	glBindTexture(GL_TEXTURE_2D, font->font);
-	glBindBuffer(GL_ARRAY_BUFFER, font->vbo);
 
 	glEnable(GL_BLEND);
 	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
@@ -347,9 +344,6 @@ void GUIFontDrawIconSize(const struct GUIFont* font, int x, int y, int w, int h,
 	glUniform3f(font->originLocation, x + w / 2 - metric.width, y + h / 2 - metric.height, 0);
 	glUniformMatrix2fv(font->transformLocation, 1, GL_FALSE, (float[4]) {w * 0.5f / metric.width, 0.0, 0.0, h * 0.5f / metric.height});
 
-	glVertexAttribPointer(font->offsetLocation, 2, GL_FLOAT, GL_FALSE, 0, NULL);
-	glEnableVertexAttribArray(font->offsetLocation);
-
 	glUniform1f(font->cutoffLocation, 0.1f);
 	glUniform4f(font->colorLocation, 0.0, 0.0, 0.0, ((color >> 24) & 0xFF) / 128.0f);
 	glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
@@ -358,7 +352,6 @@ void GUIFontDrawIconSize(const struct GUIFont* font, int x, int y, int w, int h,
 	glUniform4f(font->colorLocation, ((color >> 16) & 0xFF) / 255.0f, ((color >> 8) & 0xFF) / 255.0f, (color & 0xFF) / 255.0f, ((color >> 24) & 0xFF) / 255.0f);
 	glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
 
-	glDisableVertexAttribArray(font->offsetLocation);
+	glBindVertexArray(0);
-	glBindBuffer(GL_ARRAY_BUFFER, 0);
 	glUseProgram(0);
 }

src/platform/switch/main.c

@@ -10,15 +10,17 @@
 #include <mgba/internal/gba/input.h>
 #include <mgba-util/gui.h>
 #include <mgba-util/gui/font.h>
+#include <mgba-util/gui/menu.h>
 
 #include <switch.h>
 #include <EGL/egl.h>
-#include <GLES2/gl2.h>
+#include <GLES3/gl3.h>
 
 #define AUTO_INPUT 0x4E585031
 #define SAMPLES 0x400
 #define BUFFER_SIZE 0x1000
 #define N_BUFFERS 4
+#define ANALOG_DEADZONE 0x4000
 
 TimeType __nx_time_type = TimeType_UserSystemClock;
 
@@ -63,21 +65,23 @@ static const char* const _fragmentShader =
 
 static GLuint program;
 static GLuint vbo;
-static GLuint offsetLocation;
+static GLuint vao;
+static GLuint pbo;
 static GLuint texLocation;
 static GLuint dimsLocation;
 static GLuint insizeLocation;
 static GLuint colorLocation;
 static GLuint tex;
 
-static color_t frameBuffer[256 * 256];
+static color_t* frameBuffer;
 static struct mAVStream stream;
 static int audioBufferActive;
 static struct GBAStereoSample audioBuffer[N_BUFFERS][SAMPLES] __attribute__((__aligned__(0x1000)));
 static AudioOutBuffer audoutBuffer[N_BUFFERS];
 static int enqueuedBuffers;
 static bool frameLimiter = true;
-static int framecount = 0;
+static unsigned framecount = 0;
+static unsigned framecap = 10;
 
 static bool initEgl() {
     s_display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
@@ -105,11 +109,11 @@ static bool initEgl() {
         goto _fail1;
     }
 
-	//EGLint contextAttributeList[] = {
+	EGLint contextAttributeList[] = {
-	//	EGL_CONTEXT_CLIENT_VERSION, 2,
+		EGL_CONTEXT_CLIENT_VERSION, 3,
-	//	EGL_NONE
+		EGL_NONE
-	//};
+	};
-    s_context = eglCreateContext(s_display, config, EGL_NO_CONTEXT, NULL);
+    s_context = eglCreateContext(s_display, config, EGL_NO_CONTEXT, contextAttributeList);
     if (!s_context) {
         goto _fail2;
     }
@@ -144,12 +148,13 @@ static void _mapKey(struct mInputMap* map, uint32_t binding, int nativeKey, enum
 }
 
 static void _drawStart(void) {
-	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+	glClear(GL_COLOR_BUFFER_BIT);
 }
 
 static void _drawEnd(void) {
-	if (frameLimiter || (framecount & 3) == 0) {
+	if (frameLimiter || framecount >= framecap) {
 		eglSwapBuffers(s_display, s_surface);
+		framecount = 0;
 	}
 }
 
@@ -158,6 +163,40 @@ static uint32_t _pollInput(const struct mInputMap* map) {
 	hidScanInput();
 	u32 padkeys = hidKeysHeld(CONTROLLER_P1_AUTO);
 	keys |= mInputMapKeyBits(map, AUTO_INPUT, padkeys, 0);
+
+	JoystickPosition jspos;
+	hidJoystickRead(&jspos, CONTROLLER_P1_AUTO, JOYSTICK_LEFT);
+
+	int l = mInputMapKey(map, AUTO_INPUT, __builtin_ctz(KEY_LSTICK_LEFT));
+	int r = mInputMapKey(map, AUTO_INPUT, __builtin_ctz(KEY_LSTICK_RIGHT));
+	int u = mInputMapKey(map, AUTO_INPUT, __builtin_ctz(KEY_LSTICK_UP));
+	int d = mInputMapKey(map, AUTO_INPUT, __builtin_ctz(KEY_LSTICK_DOWN));
+
+	if (l == -1) {
+		l = mInputMapKey(map, AUTO_INPUT, __builtin_ctz(KEY_DLEFT));
+	}
+	if (r == -1) {
+		r = mInputMapKey(map, AUTO_INPUT, __builtin_ctz(KEY_DRIGHT));
+	}
+	if (u == -1) {
+		u = mInputMapKey(map, AUTO_INPUT, __builtin_ctz(KEY_DUP));
+	}
+	if (d == -1) {
+		d = mInputMapKey(map, AUTO_INPUT, __builtin_ctz(KEY_DDOWN));
+	}
+
+	if (jspos.dx < -ANALOG_DEADZONE && l != -1) {
+		keys |= 1 << l;
+	}
+	if (jspos.dx > ANALOG_DEADZONE && r != -1) {
+		keys |= 1 << r;
+	}
+	if (jspos.dy < -ANALOG_DEADZONE && d != -1) {
+		keys |= 1 << d;
+	}
+	if (jspos.dy > ANALOG_DEADZONE && u != -1) {
+		keys |= 1 << u;
+	}
 	return keys;
 }
 
@@ -196,15 +235,16 @@ static void _gameLoaded(struct mGUIRunner* runner) {
 	double ratio = GBAAudioCalculateRatio(1, 60.0, 1);
 	blip_set_rates(runner->core->getAudioChannel(runner->core, 0), runner->core->frequency(runner->core), samplerate * ratio);
 	blip_set_rates(runner->core->getAudioChannel(runner->core, 1), runner->core->frequency(runner->core), samplerate * ratio);
+
+	mCoreConfigGetUIntValue(&runner->config, "fastForwardCap", &framecap);
 }
 
 static void _drawTex(struct mGUIRunner* runner, unsigned width, unsigned height, bool faded) {
-	glBindBuffer(GL_ARRAY_BUFFER, vbo);
-
 	glEnable(GL_BLEND);
 	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 
 	glUseProgram(program);
+	glBindVertexArray(vao);
 	float aspectX = width / (float) runner->params.width;
 	float aspectY = height / (float) runner->params.height;
 	float max;
@@ -226,26 +266,39 @@ static void _drawTex(struct mGUIRunner* runner, unsigned width, unsigned height,
 		glUniform4f(colorLocation, 0.8f, 0.8f, 0.8f, 0.8f);		
 	}
 
-	glVertexAttribPointer(offsetLocation, 2, GL_FLOAT, GL_FALSE, 0, NULL);
-	glEnableVertexAttribArray(offsetLocation);
-
 	glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
 
-	glDisableVertexAttribArray(offsetLocation);
+	glBindVertexArray(0);
-	glBindBuffer(GL_ARRAY_BUFFER, 0);
 	glUseProgram(0);
 }
 
+static void _prepareForFrame(struct mGUIRunner* runner) {
+	glBindBuffer(GL_PIXEL_UNPACK_BUFFER, pbo);
+	frameBuffer = glMapBufferRange(GL_PIXEL_UNPACK_BUFFER, 0, 256 * 256 * 4, GL_MAP_WRITE_BIT);
+	if (frameBuffer) {
+		runner->core->setVideoBuffer(runner->core, frameBuffer, 256);
+	}
+	glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
+}
+
 static void _drawFrame(struct mGUIRunner* runner, bool faded) {
-	glActiveTexture(GL_TEXTURE0);
+	++framecount;
-	glBindTexture(GL_TEXTURE_2D, tex);
+	if (!frameLimiter && framecount < framecap) {
-	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 256, 256, 0, GL_RGBA, GL_UNSIGNED_BYTE, frameBuffer);
+		return;
+	}
 
 	unsigned width, height;
 	runner->core->desiredVideoDimensions(runner->core, &width, &height);
-	_drawTex(runner, width, height, faded);
 
-	++framecount;
+	glBindBuffer(GL_PIXEL_UNPACK_BUFFER, pbo);
+	glUnmapBuffer(GL_PIXEL_UNPACK_BUFFER);
+
+	glActiveTexture(GL_TEXTURE0);
+	glBindTexture(GL_TEXTURE_2D, tex);
+	glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 256, height, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
+	glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
+
+	_drawTex(runner, width, height, faded);
 }
 
 static void _drawScreenshot(struct mGUIRunner* runner, const color_t* pixels, unsigned width, unsigned height, bool faded) {
@@ -257,11 +310,7 @@ static void _drawScreenshot(struct mGUIRunner* runner, const color_t* pixels, un
 }
 
 static uint16_t _pollGameInput(struct mGUIRunner* runner) {
-	int keys = 0;
+	return _pollInput(&runner->core->inputMap);
-	hidScanInput();
-	u32 padkeys = hidKeysHeld(CONTROLLER_P1_AUTO);
-	keys |= mInputMapKeyBits(&runner->core->inputMap, AUTO_INPUT, padkeys, 0);
-	return keys;
 }
 
 static void _setFrameLimiter(struct mGUIRunner* runner, bool limit) {
@@ -310,7 +359,13 @@ static int _batteryState(void) {
 	u32 charge;
 	int state = 0;
 	if (R_SUCCEEDED(psmGetBatteryChargePercentage(&charge))) {
-		state = charge / 25;
+		state = (charge + 12) / 25;
+	} else {
+		return BATTERY_NOT_PRESENT;
+	}
+	ChargerType type;
+	if (R_SUCCEEDED(psmGetChargerType(&type)) && type) {
+		state |= BATTERY_CHARGING;
 	}
 	return state;
 }
@@ -338,6 +393,13 @@ int main(int argc, char* argv[]) {
 	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
 	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
 	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 256, 256, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
+
+	glGenBuffers(1, &pbo);
+	glBindBuffer(GL_PIXEL_UNPACK_BUFFER, pbo);
+	glBufferData(GL_PIXEL_UNPACK_BUFFER, 256 * 256 * 4, NULL, GL_STREAM_DRAW);
+	frameBuffer = glMapBufferRange(GL_PIXEL_UNPACK_BUFFER, 0, 256 * 256 * 4, GL_MAP_WRITE_BIT);
+	glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
 
 	program = glCreateProgram();
 	GLuint vertexShader = glCreateShader(GL_VERTEX_SHADER);
@@ -382,12 +444,16 @@ int main(int argc, char* argv[]) {
 	colorLocation = glGetUniformLocation(program, "color");
 	dimsLocation = glGetUniformLocation(program, "dims");
 	insizeLocation = glGetUniformLocation(program, "insize");
-	offsetLocation = glGetAttribLocation(program, "offset");
+	GLuint offsetLocation = glGetAttribLocation(program, "offset");
 
 	glGenBuffers(1, &vbo);
+	glGenVertexArrays(1, &vao);
+	glBindVertexArray(vao);
 	glBindBuffer(GL_ARRAY_BUFFER, vbo);
 	glBufferData(GL_ARRAY_BUFFER, sizeof(_offsets), _offsets, GL_STATIC_DRAW);
-	glBindBuffer(GL_ARRAY_BUFFER, 0);
+	glVertexAttribPointer(offsetLocation, 2, GL_FLOAT, GL_FALSE, 0, NULL);
+	glEnableVertexAttribArray(offsetLocation);
+	glBindVertexArray(0);
 
 	stream.videoDimensionsChanged = NULL;
 	stream.postVideoFrame = NULL;
@@ -451,12 +517,26 @@ int main(int argc, char* argv[]) {
 			},
 			{ .id = 0 }
 		},
-		.nConfigExtra = 0,
+		.configExtra = (struct GUIMenuItem[]) {
+			{
+				.title = "Fast forward cap",
+				.data = "fastForwardCap",
+				.submenu = 0,
+				.state = 7,
+				.validStates = (const char*[]) {
+					"3", "4", "5", "6", "7", "8", "9",
+					"10", "11", "12", "13", "14", "15",
+					"20", "30"
+				},
+				.nStates = 15
+			},
+		},
+		.nConfigExtra = 1,
 		.setup = _setup,
 		.teardown = NULL,
 		.gameLoaded = _gameLoaded,
 		.gameUnloaded = NULL,
-		.prepareForFrame = NULL,
+		.prepareForFrame = _prepareForFrame,
 		.drawFrame = _drawFrame,
 		.drawScreenshot = _drawScreenshot,
 		.paused = NULL,
@@ -477,7 +557,25 @@ int main(int argc, char* argv[]) {
 	_mapKey(&runner.params.keyMap, AUTO_INPUT, KEY_DRIGHT, GUI_INPUT_RIGHT);
 
 	audoutStartAudioOut();
+
+	if (argc > 1) {
+		size_t i;
+		for (i = 0; runner.keySources[i].id; ++i) {
+			mInputMapLoad(&runner.params.keyMap, runner.keySources[i].id, mCoreConfigGetInput(&runner.config));
+		}
+		mGUIRun(&runner, argv[1]);
+	} else {
 		mGUIRunloop(&runner);
+	}
+
+	glBindBuffer(GL_PIXEL_UNPACK_BUFFER, pbo);
+	glUnmapBuffer(GL_PIXEL_UNPACK_BUFFER);
+	glDeleteBuffers(1, &pbo);
+
+	glDeleteTextures(1, &tex);
+	glDeleteBuffers(1, &vbo);
+	glDeleteProgram(program);
+	glDeleteVertexArrays(1, &vao);
 
 	psmExit();
 	audoutExit();

src/platform/test/perf-main.c

@@ -29,11 +29,12 @@
 #include <inttypes.h>
 #include <sys/time.h>
 
-#define PERF_OPTIONS "DF:L:NPS:"
+#define PERF_OPTIONS "DF:L:NPS:T"
 #define PERF_USAGE \
 	"\nBenchmark options:\n" \
 	"  -F FRAMES        Run for the specified number of FRAMES before exiting\n" \
 	"  -N               Disable video rendering entirely\n" \
+	"  -T               Use threaded video rendering\n" \
 	"  -P               CSV output, useful for parsing\n" \
 	"  -S SEC           Run for SEC in-game seconds before exiting\n" \
 	"  -L FILE          Load a savestate when starting the test\n" \
@@ -41,6 +42,7 @@
 
 struct PerfOpts {
 	bool noVideo;
+	bool threadedVideo;
 	bool csv;
 	unsigned duration;
 	unsigned frames;
@@ -89,7 +91,7 @@ int main(int argc, char** argv) {
 	struct mLogger logger = { .log = _log };
 	mLogSetDefaultLogger(&logger);
 
-	struct PerfOpts perfOpts = { false, false, 0, 0, 0, false };
+	struct PerfOpts perfOpts = { false, false, false, 0, 0, 0, false };
 	struct mSubParser subparser = {
 		.usage = PERF_USAGE,
 		.parse = _parsePerfOpts,
@@ -162,6 +164,12 @@ bool _mPerfRunCore(const char* fname, const struct mArguments* args, const struc
 	mCoreConfigInit(&core->config, "perf");
 	mCoreConfigLoad(&core->config);
 
+	if (perfOpts->threadedVideo) {
+		mCoreConfigSetOverrideIntValue(&core->config, "threadedVideo", 1);
+	} else {
+		mCoreConfigSetOverrideIntValue(&core->config, "threadedVideo", 0);
+	}
+
 	struct mCoreOptions opts = {};
 	mCoreConfigMap(&core->config, &opts);
 	opts.audioSync = false;
@@ -200,6 +208,8 @@ bool _mPerfRunCore(const char* fname, const struct mArguments* args, const struc
 		const char* rendererName;
 		if (perfOpts->noVideo) {
 			rendererName = "none";
+		} else if (perfOpts->threadedVideo) {
+			rendererName = "threaded-software";
 		} else {
 			rendererName = "software";
 		}
@@ -313,6 +323,9 @@ static bool _parsePerfOpts(struct mSubParser* parser, int option, const char* ar
 	case 'S':
 		opts->duration = strtoul(arg, 0, 10);
 		return !errno;
+	case 'T':
+		opts->threadedVideo = true;
+		return true;
 	case 'L':
 		opts->savestate = strdup(arg);
 		return true;

src/platform/wii/main.c

@@ -229,15 +229,6 @@ static void reconfigureScreen(struct mGUIRunner* runner) {
 			double ratio = GBAAudioCalculateRatio(1, audioSampleRate, 1);
 			blip_set_rates(runner->core->getAudioChannel(runner->core, 0), runner->core->frequency(runner->core), 48000 * ratio);
 			blip_set_rates(runner->core->getAudioChannel(runner->core, 1), runner->core->frequency(runner->core), 48000 * ratio);
-
-			runner->core->desiredVideoDimensions(runner->core, &corew, &coreh);
-			int hfactor = vmode->fbWidth / (corew * wAdjust);
-			int vfactor = vmode->efbHeight / (coreh * hAdjust);
-			if (hfactor > vfactor) {
-				scaleFactor = vfactor;
-			} else {
-				scaleFactor = hfactor;
-			}
 		}
 	}
 }
@@ -812,7 +803,7 @@ void _unpaused(struct mGUIRunner* runner) {
 }
 
 void _drawFrame(struct mGUIRunner* runner, bool faded) {
-	UNUSED(runner);
+	runner->core->desiredVideoDimensions(runner->core, &corew, &coreh);
 	uint32_t color = 0xFFFFFF3F;
 	if (!faded) {
 		color |= 0xC0;
@@ -838,9 +829,9 @@ void _drawFrame(struct mGUIRunner* runner, bool faded) {
 	GX_InvalidateTexAll();
 	GX_LoadTexObj(&tex, GX_TEXMAP0);
 
-	GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_TEX0, GX_TEX_ST, GX_S16, 0);
+	GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_TEX0, GX_TEX_ST, GX_F32, 0);
-	s16 vertWidth = TEX_W;
+	s16 vertWidth = corew;
-	s16 vertHeight = TEX_H;
+	s16 vertHeight = coreh;
 
 	if (filterMode == FM_LINEAR_2x) {
 		Mtx44 proj;
@@ -850,19 +841,19 @@ void _drawFrame(struct mGUIRunner* runner, bool faded) {
 		GX_Begin(GX_QUADS, GX_VTXFMT0, 4);
 		GX_Position2s16(0, TEX_H * 2);
 		GX_Color1u32(0xFFFFFFFF);
-		GX_TexCoord2s16(0, 1);
+		GX_TexCoord2f32(0, 1);
 
 		GX_Position2s16(TEX_W * 2, TEX_H * 2);
 		GX_Color1u32(0xFFFFFFFF);
-		GX_TexCoord2s16(1, 1);
+		GX_TexCoord2f32(1, 1);
 
 		GX_Position2s16(TEX_W * 2, 0);
 		GX_Color1u32(0xFFFFFFFF);
-		GX_TexCoord2s16(1, 0);
+		GX_TexCoord2f32(1, 0);
 
 		GX_Position2s16(0, 0);
 		GX_Color1u32(0xFFFFFFFF);
-		GX_TexCoord2s16(0, 0);
+		GX_TexCoord2f32(0, 0);
 		GX_End();
 
 		GX_SetTexCopySrc(0, 0, TEX_W * 2, TEX_H * 2);
@@ -871,6 +862,14 @@ void _drawFrame(struct mGUIRunner* runner, bool faded) {
 		GX_LoadTexObj(&rescaleTex, GX_TEXMAP0);
 	}
 
+	int hfactor = vmode->fbWidth / (corew * wAdjust);
+	int vfactor = vmode->efbHeight / (coreh * hAdjust);
+	if (hfactor > vfactor) {
+		scaleFactor = vfactor;
+	} else {
+		scaleFactor = hfactor;
+	}
+
 	if (screenMode == SM_PA) {
 		vertWidth *= scaleFactor;
 		vertHeight *= scaleFactor;
@@ -885,19 +884,19 @@ void _drawFrame(struct mGUIRunner* runner, bool faded) {
 	GX_Begin(GX_QUADS, GX_VTXFMT0, 4);
 	GX_Position2s16(0, vertHeight);
 	GX_Color1u32(color);
-	GX_TexCoord2s16(0, 1);
+	GX_TexCoord2f32(0, coreh / (float) TEX_H);
 
 	GX_Position2s16(vertWidth, vertHeight);
 	GX_Color1u32(color);
-	GX_TexCoord2s16(1, 1);
+	GX_TexCoord2f32(corew / (float) TEX_W, coreh / (float) TEX_H);
 
 	GX_Position2s16(vertWidth, 0);
 	GX_Color1u32(color);
-	GX_TexCoord2s16(1, 0);
+	GX_TexCoord2f32(corew / (float) TEX_W, 0);
 
 	GX_Position2s16(0, 0);
 	GX_Color1u32(color);
-	GX_TexCoord2s16(0, 0);
+	GX_TexCoord2f32(0, 0);
 	GX_End();
 }
 

src/util/gui.c

@@ -5,6 +5,9 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 #include <mgba-util/gui.h>
 
+#define KEY_DELAY 45
+#define KEY_REPEAT 5
+
 void GUIInit(struct GUIParams* params) {
 	memset(params->inputHistory, 0, sizeof(params->inputHistory));
 	strncpy(params->currentPath, params->basePath, PATH_MAX);
@@ -19,7 +22,7 @@ void GUIPollInput(struct GUIParams* params, uint32_t* newInputOut, uint32_t* hel
 		} else {
 			params->inputHistory[i] = -1;
 		}
-		if (!params->inputHistory[i] || (params->inputHistory[i] >= 30 && !(params->inputHistory[i] % 5))) {
+		if (!params->inputHistory[i] || (params->inputHistory[i] >= KEY_DELAY && !(params->inputHistory[i] % KEY_REPEAT))) {
 			newInput |= (1 << i);
 		}
 	}

src/util/gui/menu.c

@@ -260,6 +260,9 @@ void GUIDrawBattery(struct GUIParams* params) {
 		return;
 	}
 	int state = params->batteryState();
+	if (state == BATTERY_NOT_PRESENT) {
+		return;
+	}
 	uint32_t color = 0xFF000000;
 	if (state == (BATTERY_CHARGING | BATTERY_FULL)) {
 		color |= 0xFFC060;

src/util/ring-fifo.c

@@ -22,6 +22,18 @@ size_t RingFIFOCapacity(const struct RingFIFO* buffer) {
 	return buffer->capacity;
 }
 
+size_t RingFIFOSize(const struct RingFIFO* buffer) {
+	const void* read;
+	const void* write;
+	ATOMIC_LOAD(read, buffer->readPtr);
+	ATOMIC_LOAD(write, buffer->writePtr);
+	if (read <= write) {
+		return (uintptr_t) write - (uintptr_t) read;
+	} else {
+		return buffer->capacity - (uintptr_t) read + (uintptr_t) write;
+	}
+}
+
 void RingFIFOClear(struct RingFIFO* buffer) {
 	ATOMIC_STORE(buffer->readPtr, buffer->data);
 	ATOMIC_STORE(buffer->writePtr, buffer->data);
@@ -33,8 +45,8 @@ size_t RingFIFOWrite(struct RingFIFO* buffer, const void* value, size_t length)
 	ATOMIC_LOAD(end, buffer->readPtr);
 
 	// Wrap around if we can't fit enough in here
-	if ((intptr_t) data - (intptr_t) buffer->data + length >= buffer->capacity) {
+	if ((uintptr_t) data - (uintptr_t) buffer->data + length >= buffer->capacity) {
-		if (end == buffer->data) {
+		if (end == buffer->data || end > data) {
 			// Oops! If we wrap now, it'll appear empty
 			return 0;
 		}
@@ -65,8 +77,8 @@ size_t RingFIFORead(struct RingFIFO* buffer, void* output, size_t length) {
 	ATOMIC_LOAD(end, buffer->writePtr);
 
 	// Wrap around if we can't fit enough in here
-	if ((intptr_t) data - (intptr_t) buffer->data + length >= buffer->capacity) {
+	if ((uintptr_t) data - (uintptr_t) buffer->data + length >= buffer->capacity) {
-		if (end == data) {
+		if (end >= data) {
 			// Oops! If we wrap now, it'll appear full
 			return 0;
 		}
@@ -78,7 +90,7 @@ size_t RingFIFORead(struct RingFIFO* buffer, void* output, size_t length) {
 		uintptr_t bufferEnd = (uintptr_t) buffer->data + buffer->capacity;
 		remaining = bufferEnd - (uintptr_t) data;
 	} else {
-		remaining = (intptr_t) end - (intptr_t) data;
+		remaining = (uintptr_t) end - (uintptr_t) data;
 	}
 	// If the pointers touch, it's empty
 	if (remaining < length) {
@@ -87,6 +99,6 @@ size_t RingFIFORead(struct RingFIFO* buffer, void* output, size_t length) {
 	if (output) {
 		memcpy(output, data, length);
 	}
-	ATOMIC_STORE(buffer->readPtr, (void*) ((intptr_t) data + length));
+	ATOMIC_STORE(buffer->readPtr, (void*) ((uintptr_t) data + length));
 	return length;
 }