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8e4b806419
citra/src/citra_qt/debugger/graphics/graphics_surface.cpp
Tobias ae4e8bc316
Remove tr from image formats
2018-01-18 23:04:31 +01:00

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// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <QBoxLayout>
#include <QComboBox>
#include <QDebug>
#include <QFileDialog>
#include <QLabel>
#include <QMouseEvent>
#include <QPushButton>
#include <QScrollArea>
#include <QSpinBox>
#include "citra_qt/debugger/graphics/graphics_surface.h"
#include "citra_qt/util/spinbox.h"
#include "common/color.h"
#include "core/hw/gpu.h"
#include "core/memory.h"
#include "video_core/pica_state.h"
#include "video_core/regs_framebuffer.h"
#include "video_core/regs_texturing.h"
#include "video_core/texture/texture_decode.h"
#include "video_core/utils.h"
SurfacePicture::SurfacePicture(QWidget* parent, GraphicsSurfaceWidget* surface_widget_)
: QLabel(parent), surface_widget(surface_widget_) {}
SurfacePicture::~SurfacePicture() {}
void SurfacePicture::mousePressEvent(QMouseEvent* event) {
// Only do something while the left mouse button is held down
if (!(event->buttons() & Qt::LeftButton))
return;
if (pixmap() == nullptr)
return;
if (surface_widget)
surface_widget->Pick(event->x() * pixmap()->width() / width(),
event->y() * pixmap()->height() / height());
}
void SurfacePicture::mouseMoveEvent(QMouseEvent* event) {
// We also want to handle the event if the user moves the mouse while holding down the LMB
mousePressEvent(event);
}
GraphicsSurfaceWidget::GraphicsSurfaceWidget(std::shared_ptr<Pica::DebugContext> debug_context,
QWidget* parent)
: BreakPointObserverDock(debug_context, tr("Pica Surface Viewer"), parent),
surface_source(Source::ColorBuffer) {
setObjectName("PicaSurface");
surface_source_list = new QComboBox;
surface_source_list->addItem(tr("Color Buffer"));
surface_source_list->addItem(tr("Depth Buffer"));
surface_source_list->addItem(tr("Stencil Buffer"));
surface_source_list->addItem(tr("Texture 0"));
surface_source_list->addItem(tr("Texture 1"));
surface_source_list->addItem(tr("Texture 2"));
surface_source_list->addItem(tr("Custom"));
surface_source_list->setCurrentIndex(static_cast<int>(surface_source));
surface_address_control = new CSpinBox;
surface_address_control->SetBase(16);
surface_address_control->SetRange(0, 0xFFFFFFFF);
surface_address_control->SetPrefix("0x");
unsigned max_dimension = 16384; // TODO: Find actual maximum
surface_width_control = new QSpinBox;
surface_width_control->setRange(0, max_dimension);
surface_height_control = new QSpinBox;
surface_height_control->setRange(0, max_dimension);
surface_picker_x_control = new QSpinBox;
surface_picker_x_control->setRange(0, max_dimension - 1);
surface_picker_y_control = new QSpinBox;
surface_picker_y_control->setRange(0, max_dimension - 1);
surface_format_control = new QComboBox;
// Color formats sorted by Pica texture format index
surface_format_control->addItem("RGBA8");
surface_format_control->addItem("RGB8");
surface_format_control->addItem("RGB5A1");
surface_format_control->addItem("RGB565");
surface_format_control->addItem("RGBA4");
surface_format_control->addItem("IA8");
surface_format_control->addItem("RG8");
surface_format_control->addItem("I8");
surface_format_control->addItem("A8");
surface_format_control->addItem("IA4");
surface_format_control->addItem("I4");
surface_format_control->addItem("A4");
surface_format_control->addItem("ETC1");
surface_format_control->addItem("ETC1A4");
surface_format_control->addItem("D16");
surface_format_control->addItem("D24");
surface_format_control->addItem("D24X8");
surface_format_control->addItem("X24S8");
surface_format_control->addItem(tr("Unknown"));
surface_info_label = new QLabel();
surface_info_label->setWordWrap(true);
surface_picture_label = new SurfacePicture(0, this);
surface_picture_label->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
surface_picture_label->setAlignment(Qt::AlignLeft | Qt::AlignTop);
surface_picture_label->setScaledContents(false);
auto scroll_area = new QScrollArea();
scroll_area->setBackgroundRole(QPalette::Dark);
scroll_area->setWidgetResizable(false);
scroll_area->setWidget(surface_picture_label);
save_surface = new QPushButton(QIcon::fromTheme("document-save"), tr("Save"));
// Connections
connect(this, &GraphicsSurfaceWidget::Update, this, &GraphicsSurfaceWidget::OnUpdate);
connect(surface_source_list,
static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), this,
&GraphicsSurfaceWidget::OnSurfaceSourceChanged);
connect(surface_address_control, &CSpinBox::ValueChanged, this,
&GraphicsSurfaceWidget::OnSurfaceAddressChanged);
connect(surface_width_control, static_cast<void (QSpinBox::*)(int)>(&QSpinBox::valueChanged),
this, &GraphicsSurfaceWidget::OnSurfaceWidthChanged);
connect(surface_height_control, static_cast<void (QSpinBox::*)(int)>(&QSpinBox::valueChanged),
this, &GraphicsSurfaceWidget::OnSurfaceHeightChanged);
connect(surface_format_control,
static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), this,
&GraphicsSurfaceWidget::OnSurfaceFormatChanged);
connect(surface_picker_x_control, static_cast<void (QSpinBox::*)(int)>(&QSpinBox::valueChanged),
this, &GraphicsSurfaceWidget::OnSurfacePickerXChanged);
connect(surface_picker_y_control, static_cast<void (QSpinBox::*)(int)>(&QSpinBox::valueChanged),
this, &GraphicsSurfaceWidget::OnSurfacePickerYChanged);
connect(save_surface, &QPushButton::clicked, this, &GraphicsSurfaceWidget::SaveSurface);
auto main_widget = new QWidget;
auto main_layout = new QVBoxLayout;
{
auto sub_layout = new QHBoxLayout;
sub_layout->addWidget(new QLabel(tr("Source:")));
sub_layout->addWidget(surface_source_list);
main_layout->addLayout(sub_layout);
}
{
auto sub_layout = new QHBoxLayout;
sub_layout->addWidget(new QLabel(tr("Physical Address:")));
sub_layout->addWidget(surface_address_control);
main_layout->addLayout(sub_layout);
}
{
auto sub_layout = new QHBoxLayout;
sub_layout->addWidget(new QLabel(tr("Width:")));
sub_layout->addWidget(surface_width_control);
main_layout->addLayout(sub_layout);
}
{
auto sub_layout = new QHBoxLayout;
sub_layout->addWidget(new QLabel(tr("Height:")));
sub_layout->addWidget(surface_height_control);
main_layout->addLayout(sub_layout);
}
{
auto sub_layout = new QHBoxLayout;
sub_layout->addWidget(new QLabel(tr("Format:")));
sub_layout->addWidget(surface_format_control);
main_layout->addLayout(sub_layout);
}
main_layout->addWidget(scroll_area);
auto info_layout = new QHBoxLayout;
{
auto xy_layout = new QVBoxLayout;
{
{
auto sub_layout = new QHBoxLayout;
sub_layout->addWidget(new QLabel(tr("X:")));
sub_layout->addWidget(surface_picker_x_control);
xy_layout->addLayout(sub_layout);
}
{
auto sub_layout = new QHBoxLayout;
sub_layout->addWidget(new QLabel(tr("Y:")));
sub_layout->addWidget(surface_picker_y_control);
xy_layout->addLayout(sub_layout);
}
}
info_layout->addLayout(xy_layout);
surface_info_label->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Minimum);
info_layout->addWidget(surface_info_label);
}
main_layout->addLayout(info_layout);
main_layout->addWidget(save_surface);
main_widget->setLayout(main_layout);
setWidget(main_widget);
// Load current data - TODO: Make sure this works when emulation is not running
if (debug_context && debug_context->at_breakpoint) {
emit Update();
widget()->setEnabled(debug_context->at_breakpoint);
} else {
widget()->setEnabled(false);
}
}
void GraphicsSurfaceWidget::OnBreakPointHit(Pica::DebugContext::Event event, void* data) {
emit Update();
widget()->setEnabled(true);
}
void GraphicsSurfaceWidget::OnResumed() {
widget()->setEnabled(false);
}
void GraphicsSurfaceWidget::OnSurfaceSourceChanged(int new_value) {
surface_source = static_cast<Source>(new_value);
emit Update();
}
void GraphicsSurfaceWidget::OnSurfaceAddressChanged(qint64 new_value) {
if (surface_address != new_value) {
surface_address = static_cast<unsigned>(new_value);
surface_source_list->setCurrentIndex(static_cast<int>(Source::Custom));
emit Update();
}
}
void GraphicsSurfaceWidget::OnSurfaceWidthChanged(int new_value) {
if (surface_width != static_cast<unsigned>(new_value)) {
surface_width = static_cast<unsigned>(new_value);
surface_source_list->setCurrentIndex(static_cast<int>(Source::Custom));
emit Update();
}
}
void GraphicsSurfaceWidget::OnSurfaceHeightChanged(int new_value) {
if (surface_height != static_cast<unsigned>(new_value)) {
surface_height = static_cast<unsigned>(new_value);
surface_source_list->setCurrentIndex(static_cast<int>(Source::Custom));
emit Update();
}
}
void GraphicsSurfaceWidget::OnSurfaceFormatChanged(int new_value) {
if (surface_format != static_cast<Format>(new_value)) {
surface_format = static_cast<Format>(new_value);
surface_source_list->setCurrentIndex(static_cast<int>(Source::Custom));
emit Update();
}
}
void GraphicsSurfaceWidget::OnSurfacePickerXChanged(int new_value) {
if (surface_picker_x != new_value) {
surface_picker_x = new_value;
Pick(surface_picker_x, surface_picker_y);
}
}
void GraphicsSurfaceWidget::OnSurfacePickerYChanged(int new_value) {
if (surface_picker_y != new_value) {
surface_picker_y = new_value;
Pick(surface_picker_x, surface_picker_y);
}
}
void GraphicsSurfaceWidget::Pick(int x, int y) {
surface_picker_x_control->setValue(x);
surface_picker_y_control->setValue(y);
if (x < 0 || x >= static_cast<int>(surface_width) || y < 0 ||
y >= static_cast<int>(surface_height)) {
surface_info_label->setText(tr("Pixel out of bounds"));
surface_info_label->setAlignment(Qt::AlignLeft | Qt::AlignVCenter);
return;
}
u8* buffer = Memory::GetPhysicalPointer(surface_address);
if (buffer == nullptr) {
surface_info_label->setText(tr("(unable to access pixel data)"));
surface_info_label->setAlignment(Qt::AlignCenter);
return;
}
unsigned nibbles_per_pixel = GraphicsSurfaceWidget::NibblesPerPixel(surface_format);
unsigned stride = nibbles_per_pixel * surface_width / 2;
unsigned bytes_per_pixel;
bool nibble_mode = (nibbles_per_pixel == 1);
if (nibble_mode) {
// As nibbles are contained in a byte we still need to access one byte per nibble
bytes_per_pixel = 1;
} else {
bytes_per_pixel = nibbles_per_pixel / 2;
}
const u32 coarse_y = y & ~7;
u32 offset = VideoCore::GetMortonOffset(x, y, bytes_per_pixel) + coarse_y * stride;
const u8* pixel = buffer + (nibble_mode ? (offset / 2) : offset);
auto GetText = [offset](Format format, const u8* pixel) {
switch (format) {
case Format::RGBA8: {
auto value = Color::DecodeRGBA8(pixel) / 255.0f;
return QString("Red: %1, Green: %2, Blue: %3, Alpha: %4")
.arg(QString::number(value.r(), 'f', 2))
.arg(QString::number(value.g(), 'f', 2))
.arg(QString::number(value.b(), 'f', 2))
.arg(QString::number(value.a(), 'f', 2));
}
case Format::RGB8: {
auto value = Color::DecodeRGB8(pixel) / 255.0f;
return QString("Red: %1, Green: %2, Blue: %3")
.arg(QString::number(value.r(), 'f', 2))
.arg(QString::number(value.g(), 'f', 2))
.arg(QString::number(value.b(), 'f', 2));
}
case Format::RGB5A1: {
auto value = Color::DecodeRGB5A1(pixel) / 255.0f;
return QString("Red: %1, Green: %2, Blue: %3, Alpha: %4")
.arg(QString::number(value.r(), 'f', 2))
.arg(QString::number(value.g(), 'f', 2))
.arg(QString::number(value.b(), 'f', 2))
.arg(QString::number(value.a(), 'f', 2));
}
case Format::RGB565: {
auto value = Color::DecodeRGB565(pixel) / 255.0f;
return QString("Red: %1, Green: %2, Blue: %3")
.arg(QString::number(value.r(), 'f', 2))
.arg(QString::number(value.g(), 'f', 2))
.arg(QString::number(value.b(), 'f', 2));
}
case Format::RGBA4: {
auto value = Color::DecodeRGBA4(pixel) / 255.0f;
return QString("Red: %1, Green: %2, Blue: %3, Alpha: %4")
.arg(QString::number(value.r(), 'f', 2))
.arg(QString::number(value.g(), 'f', 2))
.arg(QString::number(value.b(), 'f', 2))
.arg(QString::number(value.a(), 'f', 2));
}
case Format::IA8:
return QString("Index: %1, Alpha: %2").arg(pixel[0]).arg(pixel[1]);
case Format::RG8: {
auto value = Color::DecodeRG8(pixel) / 255.0f;
return QString("Red: %1, Green: %2")
.arg(QString::number(value.r(), 'f', 2))
.arg(QString::number(value.g(), 'f', 2));
}
case Format::I8:
return QString("Index: %1").arg(*pixel);
case Format::A8:
return QString("Alpha: %1").arg(QString::number(*pixel / 255.0f, 'f', 2));
case Format::IA4:
return QString("Index: %1, Alpha: %2").arg(*pixel & 0xF).arg((*pixel & 0xF0) >> 4);
case Format::I4: {
u8 i = (*pixel >> ((offset % 2) ? 4 : 0)) & 0xF;
return QString("Index: %1").arg(i);
}
case Format::A4: {
u8 a = (*pixel >> ((offset % 2) ? 4 : 0)) & 0xF;
return QString("Alpha: %1").arg(QString::number(a / 15.0f, 'f', 2));
}
case Format::ETC1:
case Format::ETC1A4:
// TODO: Display block information or channel values?
return QString("Compressed data");
case Format::D16: {
auto value = Color::DecodeD16(pixel);
return QString("Depth: %1").arg(QString::number(value / (float)0xFFFF, 'f', 4));
}
case Format::D24: {
auto value = Color::DecodeD24(pixel);
return QString("Depth: %1").arg(QString::number(value / (float)0xFFFFFF, 'f', 4));
}
case Format::D24X8:
case Format::X24S8: {
auto values = Color::DecodeD24S8(pixel);
return QString("Depth: %1, Stencil: %2")
.arg(QString::number(values[0] / (float)0xFFFFFF, 'f', 4))
.arg(values[1]);
}
case Format::Unknown:
return QString("Unknown format");
default:
return QString("Unhandled format");
}
return QString("");
};
QString nibbles = "";
for (unsigned i = 0; i < nibbles_per_pixel; i++) {
unsigned nibble_index = i;
if (nibble_mode) {
nibble_index += (offset % 2) ? 0 : 1;
}
u8 byte = pixel[nibble_index / 2];
u8 nibble = (byte >> ((nibble_index % 2) ? 0 : 4)) & 0xF;
nibbles.append(QString::number(nibble, 16).toUpper());
}
surface_info_label->setText(
QString("Raw: 0x%3\n(%4)").arg(nibbles).arg(GetText(surface_format, pixel)));
surface_info_label->setAlignment(Qt::AlignLeft | Qt::AlignVCenter);
}
void GraphicsSurfaceWidget::OnUpdate() {
QPixmap pixmap;
switch (surface_source) {
case Source::ColorBuffer: {
// TODO: Store a reference to the registers in the debug context instead of accessing them
// directly...
const auto& framebuffer = Pica::g_state.regs.framebuffer.framebuffer;
surface_address = framebuffer.GetColorBufferPhysicalAddress();
surface_width = framebuffer.GetWidth();
surface_height = framebuffer.GetHeight();
switch (framebuffer.color_format) {
case Pica::FramebufferRegs::ColorFormat::RGBA8:
surface_format = Format::RGBA8;
break;
case Pica::FramebufferRegs::ColorFormat::RGB8:
surface_format = Format::RGB8;
break;
case Pica::FramebufferRegs::ColorFormat::RGB5A1:
surface_format = Format::RGB5A1;
break;
case Pica::FramebufferRegs::ColorFormat::RGB565:
surface_format = Format::RGB565;
break;
case Pica::FramebufferRegs::ColorFormat::RGBA4:
surface_format = Format::RGBA4;
break;
default:
surface_format = Format::Unknown;
break;
}
break;
}
case Source::DepthBuffer: {
const auto& framebuffer = Pica::g_state.regs.framebuffer.framebuffer;
surface_address = framebuffer.GetDepthBufferPhysicalAddress();
surface_width = framebuffer.GetWidth();
surface_height = framebuffer.GetHeight();
switch (framebuffer.depth_format) {
case Pica::FramebufferRegs::DepthFormat::D16:
surface_format = Format::D16;
break;
case Pica::FramebufferRegs::DepthFormat::D24:
surface_format = Format::D24;
break;
case Pica::FramebufferRegs::DepthFormat::D24S8:
surface_format = Format::D24X8;
break;
default:
surface_format = Format::Unknown;
break;
}
break;
}
case Source::StencilBuffer: {
const auto& framebuffer = Pica::g_state.regs.framebuffer.framebuffer;
surface_address = framebuffer.GetDepthBufferPhysicalAddress();
surface_width = framebuffer.GetWidth();
surface_height = framebuffer.GetHeight();
switch (framebuffer.depth_format) {
case Pica::FramebufferRegs::DepthFormat::D24S8:
surface_format = Format::X24S8;
break;
default:
surface_format = Format::Unknown;
break;
}
break;
}
case Source::Texture0:
case Source::Texture1:
case Source::Texture2: {
unsigned texture_index;
if (surface_source == Source::Texture0)
texture_index = 0;
else if (surface_source == Source::Texture1)
texture_index = 1;
else if (surface_source == Source::Texture2)
texture_index = 2;
else {
qDebug() << "Unknown texture source " << static_cast<int>(surface_source);
break;
}
const auto texture = Pica::g_state.regs.texturing.GetTextures()[texture_index];
auto info = Pica::Texture::TextureInfo::FromPicaRegister(texture.config, texture.format);
surface_address = info.physical_address;
surface_width = info.width;
surface_height = info.height;
surface_format = static_cast<Format>(info.format);
if (surface_format > Format::MaxTextureFormat) {
qDebug() << "Unknown texture format " << static_cast<int>(info.format);
}
break;
}
case Source::Custom: {
// Keep user-specified values
break;
}
default:
qDebug() << "Unknown surface source " << static_cast<int>(surface_source);
break;
}
surface_address_control->SetValue(surface_address);
surface_width_control->setValue(surface_width);
surface_height_control->setValue(surface_height);
surface_format_control->setCurrentIndex(static_cast<int>(surface_format));
// TODO: Implement a good way to visualize alpha components!
QImage decoded_image(surface_width, surface_height, QImage::Format_ARGB32);
u8* buffer = Memory::GetPhysicalPointer(surface_address);
if (buffer == nullptr) {
surface_picture_label->hide();
surface_info_label->setText(tr("(invalid surface address)"));
surface_info_label->setAlignment(Qt::AlignCenter);
surface_picker_x_control->setEnabled(false);
surface_picker_y_control->setEnabled(false);
save_surface->setEnabled(false);
return;
}
if (surface_format == Format::Unknown) {
surface_picture_label->hide();
surface_info_label->setText(tr("(unknown surface format)"));
surface_info_label->setAlignment(Qt::AlignCenter);
surface_picker_x_control->setEnabled(false);
surface_picker_y_control->setEnabled(false);
save_surface->setEnabled(false);
return;
}
surface_picture_label->show();
if (surface_format <= Format::MaxTextureFormat) {
// Generate a virtual texture
Pica::Texture::TextureInfo info;
info.physical_address = surface_address;
info.width = surface_width;
info.height = surface_height;
info.format = static_cast<Pica::TexturingRegs::TextureFormat>(surface_format);
info.SetDefaultStride();
for (unsigned int y = 0; y < surface_height; ++y) {
for (unsigned int x = 0; x < surface_width; ++x) {
Math::Vec4<u8> color = Pica::Texture::LookupTexture(buffer, x, y, info, true);
decoded_image.setPixel(x, y, qRgba(color.r(), color.g(), color.b(), color.a()));
}
}
} else {
// We handle depth formats here because DebugUtils only supports TextureFormats
// TODO(yuriks): Convert to newer tile-based addressing
unsigned nibbles_per_pixel = GraphicsSurfaceWidget::NibblesPerPixel(surface_format);
unsigned stride = nibbles_per_pixel * surface_width / 2;
ASSERT_MSG(nibbles_per_pixel >= 2,
"Depth decoder only supports formats with at least one byte per pixel");
unsigned bytes_per_pixel = nibbles_per_pixel / 2;
for (unsigned int y = 0; y < surface_height; ++y) {
for (unsigned int x = 0; x < surface_width; ++x) {
const u32 coarse_y = y & ~7;
u32 offset = VideoCore::GetMortonOffset(x, y, bytes_per_pixel) + coarse_y * stride;
const u8* pixel = buffer + offset;
Math::Vec4<u8> color = {0, 0, 0, 0};
switch (surface_format) {
case Format::D16: {
u32 data = Color::DecodeD16(pixel);
color.r() = data & 0xFF;
color.g() = (data >> 8) & 0xFF;
break;
}
case Format::D24: {
u32 data = Color::DecodeD24(pixel);
color.r() = data & 0xFF;
color.g() = (data >> 8) & 0xFF;
color.b() = (data >> 16) & 0xFF;
break;
}
case Format::D24X8: {
Math::Vec2<u32> data = Color::DecodeD24S8(pixel);
color.r() = data.x & 0xFF;
color.g() = (data.x >> 8) & 0xFF;
color.b() = (data.x >> 16) & 0xFF;
break;
}
case Format::X24S8: {
Math::Vec2<u32> data = Color::DecodeD24S8(pixel);
color.r() = color.g() = color.b() = data.y;
break;
}
default:
qDebug() << "Unknown surface format " << static_cast<int>(surface_format);
break;
}
decoded_image.setPixel(x, y, qRgba(color.r(), color.g(), color.b(), 255));
}
}
}
pixmap = QPixmap::fromImage(decoded_image);
surface_picture_label->setPixmap(pixmap);
surface_picture_label->resize(pixmap.size());
// Update the info with pixel data
surface_picker_x_control->setEnabled(true);
surface_picker_y_control->setEnabled(true);
Pick(surface_picker_x, surface_picker_y);
// Enable saving the converted pixmap to file
save_surface->setEnabled(true);
}
void GraphicsSurfaceWidget::SaveSurface() {
QString png_filter = tr("Portable Network Graphic (*.png)");
QString bin_filter = tr("Binary data (*.bin)");
QString selectedFilter;
QString filename = QFileDialog::getSaveFileName(
this, tr("Save Surface"),
QString("texture-0x%1.png").arg(QString::number(surface_address, 16)),
QString("%1;;%2").arg(png_filter, bin_filter), &selectedFilter);
if (filename.isEmpty()) {
// If the user canceled the dialog, don't save anything.
return;
}
if (selectedFilter == png_filter) {
const QPixmap* pixmap = surface_picture_label->pixmap();
ASSERT_MSG(pixmap != nullptr, "No pixmap set");
QFile file(filename);
file.open(QIODevice::WriteOnly);
if (pixmap)
pixmap->save(&file, "PNG");
} else if (selectedFilter == bin_filter) {
const u8* buffer = Memory::GetPhysicalPointer(surface_address);
ASSERT_MSG(buffer != nullptr, "Memory not accessible");
QFile file(filename);
file.open(QIODevice::WriteOnly);
int size = surface_width * surface_height * NibblesPerPixel(surface_format) / 2;
QByteArray data(reinterpret_cast<const char*>(buffer), size);
file.write(data);
} else {
UNREACHABLE_MSG("Unhandled filter selected");
}
}
unsigned int GraphicsSurfaceWidget::NibblesPerPixel(GraphicsSurfaceWidget::Format format) {
if (format <= Format::MaxTextureFormat) {
return Pica::TexturingRegs::NibblesPerPixel(
static_cast<Pica::TexturingRegs::TextureFormat>(format));
}
switch (format) {
case Format::D24X8:
case Format::X24S8:
return 4 * 2;
case Format::D24:
return 3 * 2;
case Format::D16:
return 2 * 2;
default:
UNREACHABLE_MSG("GraphicsSurfaceWidget::BytesPerPixel: this should not be reached as this "
"function should be given a format which is in "
"GraphicsSurfaceWidget::Format. Instead got %i",
static_cast<int>(format));
return 0;
}
}
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