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
 11extern "C" {
 12#include "core/core.h"
 13#ifdef M_CORE_GBA
 14#include "gba/memory.h"
 15#endif
 16#ifdef M_CORE_GB
 17#include "gb/memory.h"
 18#endif
 19}
 20
 21using namespace QGBA;
 22
 23struct IndexInfo {
 24	const char* name;
 25	const char* longName;
 26	uint32_t base;
 27	uint32_t size;
 28};
 29#ifdef M_CORE_GBA
 30const static struct IndexInfo indexInfoGBA[] = {
 31	{ "All", "All", 0, 0x10000000 },
 32	{ "BIOS", "BIOS (16kiB)", BASE_BIOS, SIZE_BIOS },
 33	{ "EWRAM", "Working RAM (256kiB)", BASE_WORKING_RAM, SIZE_WORKING_RAM },
 34	{ "IWRAM", "Internal Working RAM (32kiB)", BASE_WORKING_IRAM, SIZE_WORKING_IRAM },
 35	{ "MMIO", "Memory-Mapped I/O", BASE_IO, SIZE_IO },
 36	{ "Palette", "Palette RAM (1kiB)", BASE_PALETTE_RAM, SIZE_PALETTE_RAM },
 37	{ "VRAM", "Video RAM (96kiB)", BASE_VRAM, SIZE_VRAM },
 38	{ "OAM", "OBJ Attribute Memory (1kiB)", BASE_OAM, SIZE_OAM },
 39	{ "ROM", "Game Pak (32MiB)", BASE_CART0, SIZE_CART0 },
 40	{ "ROM WS1", "Game Pak (Waitstate 1)", BASE_CART1, SIZE_CART1 },
 41	{ "ROM WS2", "Game Pak (Waitstate 2)", BASE_CART2, SIZE_CART2 },
 42	{ "SRAM", "Static RAM (64kiB)", BASE_CART_SRAM, SIZE_CART_SRAM },
 43	{ nullptr, nullptr, 0, 0 }
 44};
 45#endif
 46#ifdef M_CORE_GB
 47const static struct IndexInfo indexInfoGB[] = {
 48	{ "All", "All", 0, 0x10000 },
 49	{ "ROM", "Game Pak (32kiB)", GB_BASE_CART_BANK0, GB_SIZE_CART_BANK0 * 2 },
 50	{ "VRAM", "Video RAM (8kiB)", GB_BASE_VRAM, GB_SIZE_VRAM },
 51	{ "SRAM", "External RAM (8kiB)", GB_BASE_EXTERNAL_RAM, GB_SIZE_EXTERNAL_RAM },
 52	{ "WRAM", "Working RAM (8kiB)", GB_BASE_WORKING_RAM_BANK0, GB_SIZE_WORKING_RAM_BANK0 * 2 },
 53	{ "OAM", "OBJ Attribute Memory", GB_BASE_OAM, GB_SIZE_OAM },
 54	{ "IO", "Memory-Mapped I/O", GB_BASE_IO, GB_SIZE_IO },
 55	{ "HRAM", "High RAM", GB_BASE_HRAM, GB_SIZE_HRAM },
 56	{ nullptr, nullptr, 0, 0 }
 57};
 58#endif
 59
 60MemoryView::MemoryView(GameController* controller, QWidget* parent)
 61	: QWidget(parent)
 62	, m_controller(controller)
 63{
 64	m_ui.setupUi(this);
 65
 66	m_ui.hexfield->setController(controller);
 67
 68	mCore* core = m_controller->thread()->core;
 69	const IndexInfo* info = nullptr;
 70	switch (core->platform(core)) {
 71#ifdef M_CORE_GBA
 72	case PLATFORM_GBA:
 73		info = indexInfoGBA;
 74		break;
 75#endif
 76#ifdef M_CORE_GB
 77	case PLATFORM_GB:
 78		info = indexInfoGB;
 79		break;
 80#endif
 81	default:
 82		break;
 83	}
 84
 85	connect(m_ui.regions, SIGNAL(currentIndexChanged(int)), this, SLOT(setIndex(int)));
 86	if (info) {
 87		for (size_t i = 0; info[i].name; ++i) {
 88			m_ui.regions->addItem(tr(info[i].longName));
 89		}
 90	}
 91
 92	connect(m_ui.width8, &QAbstractButton::clicked, [this]() { m_ui.hexfield->setAlignment(1); });
 93	connect(m_ui.width16, &QAbstractButton::clicked, [this]() { m_ui.hexfield->setAlignment(2); });
 94	connect(m_ui.width32, &QAbstractButton::clicked, [this]() { m_ui.hexfield->setAlignment(4); });
 95	connect(m_ui.setAddress, SIGNAL(valueChanged(const QString&)), m_ui.hexfield, SLOT(jumpToAddress(const QString&)));
 96
 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
107void MemoryView::setIndex(int index) {
108	mCore* core = m_controller->thread()->core;
109	IndexInfo info;
110	switch (core->platform(core)) {
111#ifdef M_CORE_GBA
112	case PLATFORM_GBA:
113		info = indexInfoGBA[index];
114		break;
115#endif
116#ifdef M_CORE_GB
117	case PLATFORM_GB:
118		info = indexInfoGB[index];
119		break;
120#endif
121	default:
122		return;
123	}
124	m_ui.hexfield->setRegion(info.base, info.size, info.name);
125}
126
127void MemoryView::update() {
128	m_ui.hexfield->viewport()->update();
129	updateStatus();
130}
131
132void MemoryView::updateSelection(uint32_t start, uint32_t end) {
133	m_selection.first = start;
134	m_selection.second = end;
135	updateStatus();
136}
137
138void MemoryView::updateStatus() {
139	int align = m_ui.hexfield->alignment();
140	if (m_selection.first & (align - 1) || m_selection.second - m_selection.first != align) {
141		m_ui.sintVal->clear();
142		m_ui.uintVal->clear();
143		return;
144	}
145	if (!m_controller->isLoaded()) {
146		return;
147	}
148	mCore* core = m_controller->thread()->core;
149	union {
150		uint32_t u32;
151		int32_t i32;
152		uint16_t u16;
153		int16_t i16;
154		uint8_t u8;
155		int8_t i8;
156	} value;
157	switch (align) {
158	case 1:
159		value.u8 = core->rawRead8(core, m_selection.first);
160		m_ui.sintVal->setText(QString::number(value.i8));
161		m_ui.uintVal->setText(QString::number(value.u8));
162		break;
163	case 2:
164		value.u16 = core->rawRead16(core, m_selection.first);
165		m_ui.sintVal->setText(QString::number(value.i16));
166		m_ui.uintVal->setText(QString::number(value.u16));
167		break;
168	case 4:
169		value.u32 = core->rawRead32(core, m_selection.first);
170		m_ui.sintVal->setText(QString::number(value.i32));
171		m_ui.uintVal->setText(QString::number(value.u32));
172		break;
173	}
174}