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SoftwareDrawingContext.cpp
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SoftwareDrawingContext.cpp
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#include "SoftwareDrawingContext.h"
#include "DrawSprite.h"
#include "Graphics/ImageIds.h"
#include "Interop/Interop.hpp"
#include "Ui.h"
#include "Ui/WindowManager.h"
#include <SDL2/SDL.h>
#include <algorithm>
using namespace OpenLoco::Interop;
using namespace OpenLoco::Gfx;
using namespace OpenLoco::Ui;
namespace OpenLoco::Drawing
{
namespace Impl
{
// TODO: Move them into RenderContext once everything is implemented.
static loco_global<uint16_t, 0x112C824> _currentFontFlags;
static loco_global<int16_t, 0x0112C876> _currentFontSpriteBase;
static loco_global<uint8_t[224 * 4], 0x112C884> _characterWidths;
static loco_global<AdvancedColour[4], 0x1136594> _windowColours;
static loco_global<const uint8_t*, 0x009DA3D8> _noiseMaskImageData;
// 0x009DA3E0
// Originally 0x009DA3E0 was an array of the image data pointers setup within 0x00452336
// We have removed that step and instead work directly on the images.
static constexpr std::array<uint32_t, 8> _noiseMaskImages = {
ImageIds::null,
ImageIds::noise_mask_1,
ImageIds::noise_mask_2,
ImageIds::noise_mask_3,
ImageIds::noise_mask_4,
ImageIds::noise_mask_5,
ImageIds::noise_mask_6,
ImageIds::noise_mask_7,
};
// TODO: Store in drawing context.
static PaletteMap::Buffer<8> _textColours{ 0 };
// Make this maybe public?
namespace TextDrawFlags
{
constexpr uint8_t inset = (1ULL << 0);
constexpr uint8_t outline = (1ULL << 1);
constexpr uint8_t dark = (1ULL << 2);
constexpr uint8_t extraDark = (1ULL << 3);
}
static uint16_t getStringWidth(const char* buffer);
static std::pair<uint16_t, uint16_t> wrapString(char* buffer, uint16_t stringWidth);
static void drawRect(Gfx::RenderTarget& rt, int16_t x, int16_t y, uint16_t dx, uint16_t dy, uint32_t colour);
static void drawImageSolid(Gfx::RenderTarget& rt, const Ui::Point& pos, const ImageId& image, PaletteIndex_t paletteIndex);
// 0x0112C876
static int16_t getCurrentFontSpriteBase()
{
return _currentFontSpriteBase;
}
static void setCurrentFontSpriteBase(int16_t base)
{
_currentFontSpriteBase = base;
}
// 0x00447485
// edi: rt
// ebp: fill
static void clear(RenderTarget& rt, uint32_t fill)
{
int32_t w = rt.width / (1 << rt.zoomLevel);
int32_t h = rt.height / (1 << rt.zoomLevel);
uint8_t* ptr = rt.bits;
for (int32_t y = 0; y < h; y++)
{
std::fill_n(ptr, w, fill);
ptr += w + rt.pitch;
}
}
static void clearSingle(RenderTarget& rt, uint8_t paletteId)
{
auto fill = (paletteId << 24) | (paletteId << 16) | (paletteId << 8) | paletteId;
clear(rt, fill);
}
// 0x004957C4
static int16_t clipString(int16_t width, char* string)
{
if (width < 6)
{
*string = '\0';
return 0;
}
// If width of the full string is less than allowed width then we don't need to clip
auto clippedWidth = getStringWidth(string);
if (clippedWidth <= width)
{
return clippedWidth;
}
// Append each character 1 by 1 with an ellipsis on the end until width is exceeded
std::string bestString;
std::string curString;
for (const auto* chr = string; *chr != '\0'; ++chr)
{
curString.push_back(*chr);
switch (*chr)
{
case ControlCodes::moveX:
curString.push_back(*++chr);
break;
case ControlCodes::adjustPalette:
case 3:
case 4:
curString.push_back(*++chr);
break;
case ControlCodes::newline:
case ControlCodes::newlineSmaller:
case ControlCodes::Font::small:
case ControlCodes::Font::large:
case ControlCodes::Font::bold:
case ControlCodes::Font::regular:
case ControlCodes::Font::outline:
case ControlCodes::Font::outlineOff:
case ControlCodes::windowColour1:
case ControlCodes::windowColour2:
case ControlCodes::windowColour3:
case ControlCodes::windowColour4:
break;
case ControlCodes::inlineSpriteStr:
curString.push_back(*++chr);
curString.push_back(*++chr);
curString.push_back(*++chr);
curString.push_back(*++chr);
break;
case ControlCodes::newlineXY:
curString.push_back(*++chr);
curString.push_back(*++chr);
break;
default:
if (*chr <= 0x16)
{
curString.push_back(*++chr);
curString.push_back(*++chr);
}
else if (*chr < 32)
{
curString.push_back(*++chr);
curString.push_back(*++chr);
curString.push_back(*++chr);
curString.push_back(*++chr);
}
break;
}
auto ellipseString = curString;
ellipseString.append("...");
auto ellipsedWidth = getStringWidth(ellipseString.c_str());
if (ellipsedWidth < width)
{
// Keep best string with ellipse
bestString = ellipseString;
}
else
{
StringManager::locoStrcpy(string, bestString.c_str());
return getStringWidth(string);
}
}
return getStringWidth(string);
}
/**
* 0x00495685
*
* @param buffer @<esi>
* @return width @<cx>
*/
static uint16_t getStringWidth(const char* buffer)
{
uint16_t width = 0;
const uint8_t* str = reinterpret_cast<const uint8_t*>(buffer);
auto fontSpriteBase = getCurrentFontSpriteBase();
while (*str != (uint8_t)0)
{
const uint8_t chr = *str;
str++;
if (chr >= 32)
{
width += _characterWidths[chr - 32 + fontSpriteBase];
continue;
}
switch (chr)
{
case ControlCodes::moveX:
width = *str;
str++;
break;
case ControlCodes::adjustPalette:
case 3:
case 4:
str++;
break;
case ControlCodes::newline:
case ControlCodes::newlineSmaller:
break;
case ControlCodes::Font::small:
fontSpriteBase = Font::small;
break;
case ControlCodes::Font::large:
fontSpriteBase = Font::large;
break;
case ControlCodes::Font::bold:
fontSpriteBase = Font::medium_bold;
break;
case ControlCodes::Font::regular:
fontSpriteBase = Font::medium_normal;
break;
case ControlCodes::Font::outline:
case ControlCodes::Font::outlineOff:
case ControlCodes::windowColour1:
case ControlCodes::windowColour2:
case ControlCodes::windowColour3:
case ControlCodes::windowColour4:
break;
case ControlCodes::newlineXY:
width = *str++;
str++;
break;
case ControlCodes::inlineSpriteStr:
{
const uint32_t image = reinterpret_cast<const uint32_t*>(str)[0];
const uint32_t imageId = image & 0x7FFFF;
str += 4;
width += Gfx::getG1Element(imageId)->width;
break;
}
default:
if (chr <= 0x16)
{
str += 2;
}
else
{
str += 4;
}
break;
}
}
return width;
}
/**
* 0x004955BC
*
* @param buffer @<esi>
* @return width @<cx>
*/
static uint16_t getMaxStringWidth(const char* buffer)
{
uint16_t width = 0;
uint16_t maxWidth = 0;
const uint8_t* str = reinterpret_cast<const uint8_t*>(buffer);
auto fontSpriteBase = getCurrentFontSpriteBase();
while (*str != (uint8_t)0)
{
const uint8_t chr = *str;
str++;
if (chr >= 32)
{
width += _characterWidths[chr - 32 + fontSpriteBase];
continue;
}
switch (chr)
{
case ControlCodes::moveX:
maxWidth = std::max(width, maxWidth);
width = *str;
str++;
break;
case ControlCodes::adjustPalette:
case 3:
case 4:
str++;
break;
case ControlCodes::newline:
case ControlCodes::newlineSmaller:
continue;
case ControlCodes::Font::small:
fontSpriteBase = Font::small;
break;
case ControlCodes::Font::large:
fontSpriteBase = Font::large;
break;
case ControlCodes::Font::bold:
fontSpriteBase = Font::medium_bold;
break;
case ControlCodes::Font::regular:
fontSpriteBase = Font::medium_normal;
break;
case ControlCodes::Font::outline:
case ControlCodes::Font::outlineOff:
case ControlCodes::windowColour1:
case ControlCodes::windowColour2:
case ControlCodes::windowColour3:
case ControlCodes::windowColour4:
break;
case ControlCodes::newlineXY:
maxWidth = std::max(width, maxWidth);
width = *str;
str += 2;
break;
case ControlCodes::inlineSpriteStr:
{
const uint32_t image = reinterpret_cast<const uint32_t*>(str)[0];
const uint32_t imageId = image & 0x7FFFF;
str += 4;
width += Gfx::getG1Element(imageId)->width;
break;
}
default:
if (chr <= 0x16)
{
str += 2;
}
else
{
str += 4;
}
break;
}
}
maxWidth = std::max(width, maxWidth);
return maxWidth;
}
static void setTextColours(PaletteIndex_t pal1, PaletteIndex_t pal2, PaletteIndex_t pal3)
{
if ((_currentFontFlags & TextDrawFlags::inset) != 0)
return;
_textColours[1] = pal1;
_textColours[2] = PaletteIndex::transparent;
_textColours[3] = PaletteIndex::transparent;
if ((_currentFontFlags & TextDrawFlags::outline) != 0)
{
_textColours[2] = pal2;
_textColours[3] = pal3;
}
}
static void setTextColour(int colour)
{
const auto* el = Gfx::getG1Element(ImageIds::text_palette);
setTextColours(el->offset[colour * 4 + 0], el->offset[colour * 4 + 1], el->offset[colour * 4 + 2]);
}
static const G1Element* getNoiseMaskImageFromImage(const ImageId image)
{
if (image.hasNoiseMask())
{
const auto noise = image.getNoiseMask();
const auto* noiseImage = getG1Element(_noiseMaskImages[noise]);
if (noiseImage == nullptr)
{
return nullptr;
}
return noiseImage;
}
else
{
return nullptr;
}
}
template<uint8_t TZoomLevel, bool TIsRLE>
static std::optional<DrawSpritePosArgs> getDrawImagePosArgs(Gfx::RenderTarget& rt, const Ui::Point& pos, const G1Element& element)
{
if constexpr (TZoomLevel > 0)
{
if (element.flags & G1ElementFlags::noZoomDraw)
{
return std::nullopt;
}
}
auto dispPos{ pos };
// Its used super often so we will define it to a separate variable.
constexpr auto zoomMask = static_cast<uint32_t>(0xFFFFFFFFULL << TZoomLevel);
if constexpr (TZoomLevel > 0 && TIsRLE)
{
dispPos.x -= ~zoomMask;
dispPos.y -= ~zoomMask;
}
// This will be the height of the drawn image
auto height = element.height;
// This is the start y coordinate on the destination
auto dstTop = dispPos.y + element.yOffset;
// For whatever reason the RLE version does not use
// the zoom mask on the y coordinate but does on x.
if constexpr (TIsRLE)
{
dstTop -= rt.y;
}
else
{
dstTop = (dstTop & zoomMask) - rt.y;
}
// This is the start y coordinate on the source
auto srcY = 0;
if (dstTop < 0)
{
// If the destination y is negative reduce the height of the
// image as we will cut off the bottom
height += dstTop;
// If the image is no longer visible nothing to draw
if (height <= 0)
{
return std::nullopt;
}
// The source image will start a further up the image
srcY -= dstTop;
// The destination start is now reset to 0
dstTop = 0;
}
else
{
if constexpr (TZoomLevel > 0 && TIsRLE)
{
srcY -= dstTop & ~zoomMask;
height += dstTop & ~zoomMask;
}
}
auto dstBottom = dstTop + height;
if (dstBottom > rt.height)
{
// If the destination y is outside of the drawing
// image reduce the height of the image
height -= dstBottom - rt.height;
}
// If the image no longer has anything to draw
if (height <= 0)
return std::nullopt;
dstTop = dstTop >> TZoomLevel;
// This will be the width of the drawn image
auto width = element.width;
// This is the source start x coordinate
auto srcX = 0;
// This is the destination start x coordinate
int32_t dstLeft = ((dispPos.x + element.xOffset + ~zoomMask) & zoomMask) - rt.x;
if (dstLeft < 0)
{
// If the destination is negative reduce the width
// image will cut off the side
width += dstLeft;
// If there is no image to draw
if (width <= 0)
{
return std::nullopt;
}
// The source start will also need to cut off the side
srcX -= dstLeft;
// Reset the destination to 0
dstLeft = 0;
}
else
{
if constexpr (TZoomLevel > 0 && TIsRLE)
{
srcX -= dstLeft & ~zoomMask;
}
}
const auto dstRight = dstLeft + width;
if (dstRight > rt.width)
{
// If the destination x is outside of the drawing area
// reduce the image width.
width -= dstRight - rt.width;
// If there is no image to draw.
if (width <= 0)
return std::nullopt;
}
dstLeft = dstLeft >> TZoomLevel;
return DrawSpritePosArgs{ Ui::Point32{ srcX, srcY }, Ui::Point32{ dstLeft, dstTop }, Ui::Size(width, height) };
}
template<uint8_t TZoomLevel, bool TIsRLE>
static void drawImagePaletteSet(Gfx::RenderTarget& rt, const Ui::Point& pos, const ImageId& image, const G1Element& element, const PaletteMap::View palette, const G1Element* noiseImage)
{
auto args = getDrawImagePosArgs<TZoomLevel, TIsRLE>(rt, pos, element);
if (args.has_value())
{
const DrawSpriteArgs fullArgs{ palette, element, args->srcPos, args->dstPos, args->size, noiseImage };
const auto op = Drawing::getDrawBlendOp(image, fullArgs);
Drawing::drawSpriteToBuffer<TZoomLevel, TIsRLE>(rt, fullArgs, op);
}
}
// 0x00448D90
static void drawImagePaletteSet(Gfx::RenderTarget& rt, const Ui::Point& pos, const ImageId& image, const PaletteMap::View palette, const G1Element* noiseImage)
{
const auto* element = getG1Element(image.getIndex());
if (element == nullptr)
{
return;
}
if (rt.zoomLevel > 0 && (element->flags & G1ElementFlags::hasZoomSprites))
{
auto zoomedrt{ rt };
zoomedrt.bits = rt.bits;
zoomedrt.x = rt.x >> 1;
zoomedrt.y = rt.y >> 1;
zoomedrt.height = rt.height >> 1;
zoomedrt.width = rt.width >> 1;
zoomedrt.pitch = rt.pitch;
zoomedrt.zoomLevel = rt.zoomLevel - 1;
const auto zoomCoords = Ui::Point(pos.x >> 1, pos.y >> 1);
drawImagePaletteSet(
zoomedrt, zoomCoords, image.withIndexOffset(-element->zoomOffset), palette, noiseImage);
return;
}
const bool isRLE = element->flags & G1ElementFlags::isRLECompressed;
if (isRLE)
{
switch (rt.zoomLevel)
{
default:
drawImagePaletteSet<0, true>(rt, pos, image, *element, palette, noiseImage);
break;
case 1:
drawImagePaletteSet<1, true>(rt, pos, image, *element, palette, noiseImage);
break;
case 2:
drawImagePaletteSet<2, true>(rt, pos, image, *element, palette, noiseImage);
break;
case 3:
drawImagePaletteSet<3, true>(rt, pos, image, *element, palette, noiseImage);
break;
}
}
else
{
switch (rt.zoomLevel)
{
default:
drawImagePaletteSet<0, false>(rt, pos, image, *element, palette, noiseImage);
break;
case 1:
drawImagePaletteSet<1, false>(rt, pos, image, *element, palette, noiseImage);
break;
case 2:
drawImagePaletteSet<2, false>(rt, pos, image, *element, palette, noiseImage);
break;
case 3:
drawImagePaletteSet<3, false>(rt, pos, image, *element, palette, noiseImage);
break;
}
}
}
// 0x00448C79
static void drawImage(Gfx::RenderTarget& rt, const Ui::Point& pos, const ImageId& image)
{
const auto* noiseImage = getNoiseMaskImageFromImage(image);
const auto palette = PaletteMap::getForImage(image);
if (!palette.has_value())
{
drawImagePaletteSet(rt, pos, image, PaletteMap::getDefault(), noiseImage);
}
else
{
drawImagePaletteSet(rt, pos, image, *palette, noiseImage);
}
}
// 0x00448C79
static void drawImage(Gfx::RenderTarget* rt, int16_t x, int16_t y, uint32_t image)
{
drawImage(*rt, { x, y }, ImageId::fromUInt32(image));
}
static void drawImageSolid(Gfx::RenderTarget& rt, const Ui::Point& pos, const ImageId& image, PaletteIndex_t paletteIndex)
{
PaletteMap::Buffer<PaletteMap::kDefaultSize> palette;
std::fill(palette.begin(), palette.end(), paletteIndex);
palette[0] = 0;
// Set the image primary flag to tell drawImagePaletteSet to recolour with the palette (Colour::black is not actually used)
drawImagePaletteSet(rt, pos, image.withPrimary(Colour::black), PaletteMap::View{ palette }, {});
}
// 0x00451189
static Ui::Point loopNewline(RenderTarget* rt, Ui::Point origin, uint8_t* str)
{
Ui::Point pos = origin;
while (true)
{
// When offscreen in y dimension don't draw text
// In original this check only performed if pos.y updated instead of every loop
bool offscreen = true;
if (pos.y + 19 > rt->y)
{
if (rt->y + rt->height > pos.y)
{
offscreen = false;
}
}
uint8_t chr = *str;
str++;
switch (chr)
{
case '\0':
return pos;
case ControlCodes::adjustPalette:
// This control character does not appear in the localisation files
assert(false);
str++;
break;
case ControlCodes::newlineSmaller:
pos.x = origin.x;
if (getCurrentFontSpriteBase() == Font::medium_normal || getCurrentFontSpriteBase() == Font::medium_bold)
{
pos.y += 5;
}
else if (getCurrentFontSpriteBase() == Font::small)
{
pos.y += 3;
}
else if (getCurrentFontSpriteBase() == Font::large)
{
pos.y += 9;
}
break;
case ControlCodes::newline:
pos.x = origin.x;
if (getCurrentFontSpriteBase() == Font::medium_normal || getCurrentFontSpriteBase() == Font::medium_bold)
{
pos.y += 10;
}
else if (getCurrentFontSpriteBase() == Font::small)
{
pos.y += 6;
}
else if (getCurrentFontSpriteBase() == Font::large)
{
pos.y += 18;
}
break;
case ControlCodes::moveX:
{
uint8_t offset = *str;
str++;
pos.x = origin.x + offset;
break;
}
case ControlCodes::newlineXY:
{
uint8_t offset = *str;
str++;
pos.x = origin.x + offset;
offset = *str;
str++;
pos.y = origin.y + offset;
break;
}
case ControlCodes::Font::small:
setCurrentFontSpriteBase(Font::small);
break;
case ControlCodes::Font::large:
setCurrentFontSpriteBase(Font::large);
break;
case ControlCodes::Font::regular:
setCurrentFontSpriteBase(Font::medium_normal);
break;
case ControlCodes::Font::bold:
setCurrentFontSpriteBase(Font::medium_bold);
break;
case ControlCodes::Font::outline:
_currentFontFlags = _currentFontFlags | TextDrawFlags::outline;
break;
case ControlCodes::Font::outlineOff:
_currentFontFlags = _currentFontFlags & ~TextDrawFlags::outline;
break;
case ControlCodes::windowColour1:
{
auto hue = _windowColours[0].c();
setTextColours(Colours::getShade(hue, 7), PaletteIndex::index_0A, PaletteIndex::index_0A);
break;
}
case ControlCodes::windowColour2:
{
auto hue = _windowColours[1].c();
setTextColours(Colours::getShade(hue, 9), PaletteIndex::index_0A, PaletteIndex::index_0A);
break;
}
case ControlCodes::windowColour3:
{
auto hue = _windowColours[2].c();
setTextColours(Colours::getShade(hue, 9), PaletteIndex::index_0A, PaletteIndex::index_0A);
break;
}
case ControlCodes::windowColour4:
{
auto hue = _windowColours[3].c();
setTextColours(Colours::getShade(hue, 9), PaletteIndex::index_0A, PaletteIndex::index_0A);
break;
}
case ControlCodes::inlineSpriteStr:
{
uint32_t image = ((uint32_t*)str)[0];
ImageId imageId{ image & 0x7FFFF };
str += 4;
if ((_currentFontFlags & TextDrawFlags::inset) != 0)
{
drawImageSolid(*rt, pos, imageId, _textColours[3]);
drawImageSolid(*rt, pos + Ui::Point{ 1, 1 }, imageId, _textColours[1]);
}
else
{
drawImage(rt, pos.x, pos.y, image);
}
pos.x += Gfx::getG1Element(imageId.getIndex())->width;
break;
}
case ControlCodes::Colour::black:
setTextColour(0);
break;
case ControlCodes::Colour::grey:
setTextColour(1);
break;
case ControlCodes::Colour::white:
setTextColour(2);
break;
case ControlCodes::Colour::red:
setTextColour(3);
break;
case ControlCodes::Colour::green:
setTextColour(4);
break;
case ControlCodes::Colour::yellow:
setTextColour(5);
break;
case ControlCodes::Colour::topaz:
setTextColour(6);
break;
case ControlCodes::Colour::celadon:
setTextColour(7);
break;
case ControlCodes::Colour::babyBlue:
setTextColour(8);
break;
case ControlCodes::Colour::paleLavender:
setTextColour(9);
break;
case ControlCodes::Colour::paleGold:
setTextColour(10);
break;
case ControlCodes::Colour::lightPink:
setTextColour(11);
break;
case ControlCodes::Colour::pearlAqua:
setTextColour(12);
break;
case ControlCodes::Colour::paleSilver:
setTextColour(13);
break;
default:
if (!offscreen)
{
// When offscreen in the y dimension there is no requirement to keep pos.x correct
if (chr >= 32)
{
// Use withPrimary to set imageId flag to use the correct palette code (Colour::black is not actually used)
drawImagePaletteSet(*rt, pos, ImageId(1116 + chr - 32 + getCurrentFontSpriteBase()).withPrimary(Colour::black), PaletteMap::View{ _textColours }, {});
pos.x += _characterWidths[chr - 32 + getCurrentFontSpriteBase()];
}
else
{
// Unhandled control code
assert(false);
}
}
break;
}
}
return pos;
}
/**
* 0x00451025
*
* @param x @<cx>
* @param y @<dx>
* @param colour @<al>
* @param rt @<edi>
* @param text @<esi>
*/
static Ui::Point drawString(RenderTarget& rt, int16_t x, int16_t y, AdvancedColour colour, void* str)
{
// 0x00E04348, 0x00E0434A
Ui::Point origin = { x, y };
if (colour.isFE())
{
return loopNewline(&rt, origin, (uint8_t*)str);
}
if (colour.isFD())
{
_currentFontFlags = 0;
setTextColour(0);
return loopNewline(&rt, origin, (uint8_t*)str);
}
if (x >= rt.x + rt.width)
return origin;
if (x < rt.x - 1280)
return origin;
if (y >= rt.y + rt.height)
return origin;
if (y < rt.y - 90)
return origin;
if (colour.isFF())
{
return loopNewline(&rt, origin, (uint8_t*)str);
}
_currentFontFlags = 0;
if (getCurrentFontSpriteBase() == Font::m1)
{
setCurrentFontSpriteBase(Font::medium_bold);
_currentFontFlags = _currentFontFlags | TextDrawFlags::dark;
}
else if (getCurrentFontSpriteBase() == Font::m2)
{
setCurrentFontSpriteBase(Font::medium_bold);
_currentFontFlags = _currentFontFlags | TextDrawFlags::dark;
_currentFontFlags = _currentFontFlags | TextDrawFlags::extraDark;
}
_textColours[0] = PaletteIndex::transparent;
_textColours[1] = Colours::getShade(Colour::mutedDarkPurple, 5);
_textColours[2] = Colours::getShade(Colour::mutedRed, 5);
_textColours[3] = Colours::getShade(Colour::blue, 5);
if (colour.isOutline())
{
colour = colour.clearOutline();
_currentFontFlags = _currentFontFlags | TextDrawFlags::outline;
}
if (colour.isInset())
{
colour = colour.clearInset();
_currentFontFlags = _currentFontFlags | TextDrawFlags::inset;
}
if ((_currentFontFlags & TextDrawFlags::inset) != 0)
{
if ((_currentFontFlags & TextDrawFlags::dark) != 0 && (_currentFontFlags & TextDrawFlags::extraDark) != 0)
{
_textColours[1] = Colours::getShade(colour.c(), 2);
_textColours[2] = PaletteIndex::transparent;
_textColours[3] = Colours::getShade(colour.c(), 4);
}
else if ((_currentFontFlags & TextDrawFlags::dark) != 0)
{
_textColours[1] = Colours::getShade(colour.c(), 3);
_textColours[2] = PaletteIndex::transparent;
_textColours[3] = Colours::getShade(colour.c(), 5);
}
else
{
_textColours[1] = Colours::getShade(colour.c(), 4);
_textColours[2] = PaletteIndex::transparent;
_textColours[3] = Colours::getShade(colour.c(), 6);
}
}
else
{
setTextColours(Colours::getShade(colour.c(), 9), PaletteIndex::index_0A, PaletteIndex::index_0A);
}
return loopNewline(&rt, origin, (uint8_t*)str);
}
static const char* advanceToNextLine(const char* buffer)
{
// Traverse the buffer for the next line
const char* ptr = buffer;
while (true)
{
const auto chr = *ptr++;
if (chr == '\0')
return ptr;
if (chr >= ControlCodes::oneArgBegin && chr < ControlCodes::oneArgEnd)
{
// Skip argument
ptr++;
}
else if (chr >= ControlCodes::twoArgBegin && chr < ControlCodes::twoArgEnd)
{
// Skip argument
ptr += 2;
}
else if (chr >= ControlCodes::fourArgBegin && chr < ControlCodes::fourArgEnd)
{
// Skip argument
ptr += 4;