1/* Copyright (c) 2013-2015 Jeffrey Pfau
  2 *
  3 * This Source Code Form is subject to the terms of the Mozilla Public
  4 * License, v. 2.0. If a copy of the MPL was not distributed with this
  5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
  6
  7#include "MemoryView.h"
  8
  9#include "GameController.h"
 10
 11#include <mgba/core/core.h>
 12#ifdef M_CORE_GBA
 13#include <mgba/internal/gba/memory.h>
 14#endif
 15#ifdef M_CORE_GB
 16#include <mgba/internal/gb/memory.h>
 17#endif
 18
 19using namespace QGBA;
 20
 21struct IndexInfo {
 22	const char* name;
 23	const char* longName;
 24	uint32_t base;
 25	uint32_t size;
 26	int maxSegment;
 27};
 28#ifdef M_CORE_GBA
 29const static struct IndexInfo indexInfoGBA[] = {
 30	{ "All", "All", 0, 0x10000000 },
 31	{ "BIOS", "BIOS (16kiB)", BASE_BIOS, SIZE_BIOS },
 32	{ "EWRAM", "Working RAM (256kiB)", BASE_WORKING_RAM, SIZE_WORKING_RAM },
 33	{ "IWRAM", "Internal Working RAM (32kiB)", BASE_WORKING_IRAM, SIZE_WORKING_IRAM },
 34	{ "MMIO", "Memory-Mapped I/O", BASE_IO, SIZE_IO },
 35	{ "Palette", "Palette RAM (1kiB)", BASE_PALETTE_RAM, SIZE_PALETTE_RAM },
 36	{ "VRAM", "Video RAM (96kiB)", BASE_VRAM, SIZE_VRAM },
 37	{ "OAM", "OBJ Attribute Memory (1kiB)", BASE_OAM, SIZE_OAM },
 38	{ "ROM", "Game Pak (32MiB)", BASE_CART0, SIZE_CART0 },
 39	{ "ROM WS1", "Game Pak (Waitstate 1)", BASE_CART1, SIZE_CART1 },
 40	{ "ROM WS2", "Game Pak (Waitstate 2)", BASE_CART2, SIZE_CART2 },
 41	{ "SRAM", "Static RAM (64kiB)", BASE_CART_SRAM, SIZE_CART_SRAM },
 42	{ nullptr, nullptr, 0, 0, 0 }
 43};
 44#endif
 45#ifdef M_CORE_GB
 46const static struct IndexInfo indexInfoGB[] = {
 47	{ "All", "All", 0, 0x10000 },
 48	{ "ROM", "Game Pak (32kiB)", GB_BASE_CART_BANK0, GB_SIZE_CART_BANK0 * 2, 511 },
 49	{ "VRAM", "Video RAM (8kiB)", GB_BASE_VRAM, GB_SIZE_VRAM, 1 },
 50	{ "SRAM", "External RAM (8kiB)", GB_BASE_EXTERNAL_RAM, GB_SIZE_EXTERNAL_RAM, 3 },
 51	{ "WRAM", "Working RAM (8kiB)", GB_BASE_WORKING_RAM_BANK0, GB_SIZE_WORKING_RAM_BANK0 * 2, 7 },
 52	{ "OAM", "OBJ Attribute Memory", GB_BASE_OAM, GB_SIZE_OAM },
 53	{ "IO", "Memory-Mapped I/O", GB_BASE_IO, GB_SIZE_IO },
 54	{ "HRAM", "High RAM", GB_BASE_HRAM, GB_SIZE_HRAM },
 55	{ nullptr, nullptr, 0, 0, 0 }
 56};
 57#endif
 58
 59MemoryView::MemoryView(GameController* controller, QWidget* parent)
 60	: QWidget(parent)
 61	, m_controller(controller)
 62{
 63	m_ui.setupUi(this);
 64
 65	m_ui.hexfield->setController(controller);
 66
 67	mCore* core = m_controller->thread()->core;
 68	const IndexInfo* info = nullptr;
 69	switch (core->platform(core)) {
 70#ifdef M_CORE_GBA
 71	case PLATFORM_GBA:
 72		info = indexInfoGBA;
 73		break;
 74#endif
 75#ifdef M_CORE_GB
 76	case PLATFORM_GB:
 77		info = indexInfoGB;
 78		break;
 79#endif
 80	default:
 81		break;
 82	}
 83
 84	connect(m_ui.regions, SIGNAL(currentIndexChanged(int)), this, SLOT(setIndex(int)));
 85	connect(m_ui.segments, SIGNAL(valueChanged(int)), this, SLOT(setSegment(int)));
 86
 87	if (info) {
 88		for (size_t i = 0; info[i].name; ++i) {
 89			m_ui.regions->addItem(tr(info[i].longName));
 90		}
 91	}
 92
 93	connect(m_ui.width8, &QAbstractButton::clicked, [this]() { m_ui.hexfield->setAlignment(1); });
 94	connect(m_ui.width16, &QAbstractButton::clicked, [this]() { m_ui.hexfield->setAlignment(2); });
 95	connect(m_ui.width32, &QAbstractButton::clicked, [this]() { m_ui.hexfield->setAlignment(4); });
 96	connect(m_ui.setAddress, SIGNAL(valueChanged(const QString&)), m_ui.hexfield, SLOT(jumpToAddress(const QString&)));
 97	connect(m_ui.hexfield, SIGNAL(selectionChanged(uint32_t, uint32_t)), this, SLOT(updateSelection(uint32_t, uint32_t)));
 98
 99	connect(controller, SIGNAL(gameStopped(mCoreThread*)), this, SLOT(close()));
100
101	connect(controller, SIGNAL(frameAvailable(const uint32_t*)), this, SLOT(update()));
102	connect(controller, SIGNAL(gamePaused(mCoreThread*)), this, SLOT(update()));
103	connect(controller, SIGNAL(stateLoaded(mCoreThread*)), this, SLOT(update()));
104	connect(controller, SIGNAL(rewound(mCoreThread*)), this, SLOT(update()));
105
106	connect(m_ui.copy, SIGNAL(clicked()), m_ui.hexfield, SLOT(copy()));
107	connect(m_ui.save, SIGNAL(clicked()), m_ui.hexfield, SLOT(save()));
108	connect(m_ui.paste, SIGNAL(clicked()), m_ui.hexfield, SLOT(paste()));
109	connect(m_ui.load, SIGNAL(clicked()), m_ui.hexfield, SLOT(load()));
110
111	connect(m_ui.loadTBL, SIGNAL(clicked()), m_ui.hexfield, SLOT(loadTBL()));
112}
113
114void MemoryView::setIndex(int index) {
115	mCore* core = m_controller->thread()->core;
116	IndexInfo info;
117	switch (core->platform(core)) {
118#ifdef M_CORE_GBA
119	case PLATFORM_GBA:
120		info = indexInfoGBA[index];
121		break;
122#endif
123#ifdef M_CORE_GB
124	case PLATFORM_GB:
125		info = indexInfoGB[index];
126		break;
127#endif
128	default:
129		return;
130	}
131	m_ui.segments->setValue(-1);
132	m_ui.segments->setVisible(info.maxSegment > 0);
133	m_ui.segments->setMaximum(info.maxSegment);
134	m_ui.hexfield->setRegion(info.base, info.size, info.name);
135}
136
137void MemoryView::setSegment(int segment) {
138	mCore* core = m_controller->thread()->core;
139	IndexInfo info;
140	switch (core->platform(core)) {
141#ifdef M_CORE_GBA
142	case PLATFORM_GBA:
143		info = indexInfoGBA[m_ui.regions->currentIndex()];
144		break;
145#endif
146#ifdef M_CORE_GB
147	case PLATFORM_GB:
148		info = indexInfoGB[m_ui.regions->currentIndex()];
149		break;
150#endif
151	default:
152		return;
153	}
154	m_ui.hexfield->setSegment(info.maxSegment < segment ? info.maxSegment : segment);
155}
156
157void MemoryView::update() {
158	m_ui.hexfield->viewport()->update();
159	updateStatus();
160}
161
162void MemoryView::updateSelection(uint32_t start, uint32_t end) {
163	m_selection.first = start;
164	m_selection.second = end;
165	updateStatus();
166}
167
168void MemoryView::updateStatus() {
169	int align = m_ui.hexfield->alignment();
170	if (!m_controller->isLoaded()) {
171		return;
172	}
173	mCore* core = m_controller->thread()->core;
174	QByteArray selection(m_ui.hexfield->serialize());
175	QString text(m_ui.hexfield->decodeText(selection));
176	m_ui.stringVal->setText(text);
177
178	if (m_selection.first & (align - 1) || m_selection.second - m_selection.first != align) {
179		m_ui.sintVal->clear();
180		m_ui.uintVal->clear();
181		return;
182	}
183	union {
184		uint32_t u32;
185		int32_t i32;
186		uint16_t u16;
187		int16_t i16;
188		uint8_t u8;
189		int8_t i8;
190	} value;
191	switch (align) {
192	case 1:
193		value.u8 = core->rawRead8(core, m_selection.first, m_ui.segments->value());
194		m_ui.sintVal->setText(QString::number(value.i8));
195		m_ui.uintVal->setText(QString::number(value.u8));
196		break;
197	case 2:
198		value.u16 = core->rawRead16(core, m_selection.first, m_ui.segments->value());
199		m_ui.sintVal->setText(QString::number(value.i16));
200		m_ui.uintVal->setText(QString::number(value.u16));
201		break;
202	case 4:
203		value.u32 = core->rawRead32(core, m_selection.first, m_ui.segments->value());
204		m_ui.sintVal->setText(QString::number(value.i32));
205		m_ui.uintVal->setText(QString::number(value.u32));
206		break;
207	}
208}