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ddnet/src/engine/client/text.cpp
Chairn a9ee57aeb7 Fix unsafe defines
2022-06-27 18:51:02 +02:00

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/* (c) Magnus Auvinen. See licence.txt in the root of the distribution for more information. */
/* If you are missing that file, acquire a complete release at teeworlds.com. */
#include <base/math.h>
#include <base/system.h>
#include <cstddef>
#include <cstdint>
#include <engine/graphics.h>
#include <engine/storage.h>
#include <engine/textrender.h>
// ft2 texture
#include <ft2build.h>
#include FT_FREETYPE_H
#include <limits>
// TODO: Refactor: clean this up
enum
{
MAX_CHARACTERS = 64,
};
#include <map>
#include <vector>
#include <chrono>
using namespace std::chrono_literals;
struct SFontSizeChar
{
int m_ID;
// these values are scaled to the pFont size
// width * font_size == real_size
float m_Width;
float m_Height;
float m_CharWidth;
float m_CharHeight;
float m_OffsetX;
float m_OffsetY;
float m_AdvanceX;
float m_aUVs[4];
int64_t m_TouchTime;
FT_UInt m_GlyphIndex;
};
struct STextCharQuadVertexColor
{
unsigned char m_R, m_G, m_B, m_A;
};
struct STextCharQuadVertex
{
STextCharQuadVertex()
{
m_Color.m_R = m_Color.m_G = m_Color.m_B = m_Color.m_A = 255;
}
float m_X, m_Y;
// do not use normalized floats as coordinates, since the texture might grow
float m_U, m_V;
STextCharQuadVertexColor m_Color;
};
struct STextCharQuad
{
STextCharQuadVertex m_Vertices[4];
};
struct STextureSkyline
{
// the height of each column
std::vector<int> m_vCurHeightOfPixelColumn;
};
struct CFontSizeData
{
int m_FontSize;
FT_Face *m_pFace;
std::map<int, SFontSizeChar> m_Chars;
};
#define MIN_FONT_SIZE 6
#define MAX_FONT_SIZE 128
#define NUM_FONT_SIZES (MAX_FONT_SIZE - MIN_FONT_SIZE + 1)
class CFont
{
public:
~CFont()
{
free(m_pBuf);
delete[] m_TextureData[0];
delete[] m_TextureData[1];
for(auto &FtFallbackFont : m_vFtFallbackFonts)
{
free(FtFallbackFont.m_pBuf);
}
}
void InitFontSizes()
{
for(int i = 0; i < NUM_FONT_SIZES; ++i)
{
m_aFontSizes[i].m_FontSize = i + MIN_FONT_SIZE;
m_aFontSizes[i].m_pFace = &this->m_FtFace;
m_aFontSizes[i].m_Chars.clear();
}
}
CFontSizeData *GetFontSize(int Pixelsize)
{
int FontSize = (Pixelsize >= MIN_FONT_SIZE ? (Pixelsize > MAX_FONT_SIZE ? MAX_FONT_SIZE : Pixelsize) : MIN_FONT_SIZE);
return &m_aFontSizes[FontSize - MIN_FONT_SIZE];
}
void *m_pBuf;
char m_aFilename[IO_MAX_PATH_LENGTH];
FT_Face m_FtFace;
struct SFontFallBack
{
void *m_pBuf;
char m_aFilename[IO_MAX_PATH_LENGTH];
FT_Face m_FtFace;
};
std::vector<SFontFallBack> m_vFtFallbackFonts;
CFontSizeData m_aFontSizes[NUM_FONT_SIZES];
IGraphics::CTextureHandle m_aTextures[2];
// keep the full texture, because opengl doesn't provide texture copying
uint8_t *m_TextureData[2];
// width and height are the same
int m_CurTextureDimensions[2];
STextureSkyline m_TextureSkyline[2];
};
struct STextString
{
int m_QuadBufferObjectIndex;
int m_QuadBufferContainerIndex;
size_t m_QuadNum;
int m_SelectionQuadContainerIndex;
std::vector<STextCharQuad> m_vCharacterQuads;
};
struct STextContainer
{
STextContainer() { Reset(); }
CFont *m_pFont;
int m_FontSize;
STextString m_StringInfo;
// keep these values to calculate offsets
float m_AlignedStartX;
float m_AlignedStartY;
float m_X;
float m_Y;
int m_Flags;
int m_LineCount;
int m_GlyphCount;
int m_CharCount;
int m_MaxLines;
float m_StartX;
float m_StartY;
float m_LineWidth;
float m_UnscaledFontSize;
int m_RenderFlags;
bool m_HasCursor;
bool m_HasSelection;
bool m_SingleTimeUse;
void Reset()
{
m_pFont = NULL;
m_FontSize = 0;
m_StringInfo.m_QuadBufferObjectIndex = m_StringInfo.m_QuadBufferContainerIndex = m_StringInfo.m_SelectionQuadContainerIndex = -1;
m_StringInfo.m_QuadNum = 0;
m_StringInfo.m_vCharacterQuads.clear();
m_AlignedStartX = m_AlignedStartY = m_X = m_Y = 0.f;
m_Flags = m_LineCount = m_CharCount = m_GlyphCount = 0;
m_MaxLines = -1;
m_StartX = m_StartY = 0.f;
m_LineWidth = -1.f;
m_UnscaledFontSize = 0.f;
m_RenderFlags = 0;
m_HasCursor = false;
m_HasSelection = false;
m_SingleTimeUse = false;
}
};
class CTextRender : public IEngineTextRender
{
IGraphics *m_pGraphics;
IGraphics *Graphics() { return m_pGraphics; }
unsigned int m_RenderFlags;
std::vector<STextContainer *> m_vpTextContainers;
std::vector<int> m_vTextContainerIndices;
int m_FirstFreeTextContainerIndex;
SBufferContainerInfo m_DefaultTextContainerInfo;
std::vector<CFont *> m_vpFonts;
CFont *m_pCurFont;
std::chrono::nanoseconds m_CursorRenderTime;
int GetFreeTextContainerIndex()
{
if(m_FirstFreeTextContainerIndex == -1)
{
int Index = (int)m_vTextContainerIndices.size();
m_vTextContainerIndices.push_back(Index);
return Index;
}
else
{
int Index = m_FirstFreeTextContainerIndex;
m_FirstFreeTextContainerIndex = m_vTextContainerIndices[Index];
m_vTextContainerIndices[Index] = Index;
return Index;
}
}
void FreeTextContainerIndex(int Index)
{
m_vTextContainerIndices[Index] = m_FirstFreeTextContainerIndex;
m_FirstFreeTextContainerIndex = Index;
}
void FreeTextContainer(int Index)
{
m_vpTextContainers[Index]->Reset();
FreeTextContainerIndex(Index);
}
STextContainer &GetTextContainer(int Index)
{
if(Index >= (int)m_vpTextContainers.size())
{
int Size = (int)m_vpTextContainers.size();
for(int i = 0; i < (Index + 1) - Size; ++i)
m_vpTextContainers.push_back(new STextContainer());
}
return *m_vpTextContainers[Index];
}
int WordLength(const char *pText)
{
const char *pCursor = pText;
while(true)
{
if(*pCursor == 0)
return pCursor - pText;
if(*pCursor == '\n' || *pCursor == '\t' || *pCursor == ' ')
return pCursor - pText + 1;
str_utf8_decode(&pCursor);
}
}
ColorRGBA m_Color;
ColorRGBA m_OutlineColor;
ColorRGBA m_SelectionColor;
CFont *m_pDefaultFont;
FT_Library m_FTLibrary;
void SetRenderFlags(unsigned int Flags) override
{
m_RenderFlags = Flags;
}
unsigned int GetRenderFlags() override
{
return m_RenderFlags;
}
void Grow(unsigned char *pIn, unsigned char *pOut, int w, int h, int OutlineCount)
{
for(int y = 0; y < h; y++)
for(int x = 0; x < w; x++)
{
int c = pIn[y * w + x];
for(int sy = -OutlineCount; sy <= OutlineCount; sy++)
for(int sx = -OutlineCount; sx <= OutlineCount; sx++)
{
int GetX = x + sx;
int GetY = y + sy;
if(GetX >= 0 && GetY >= 0 && GetX < w && GetY < h)
{
int Index = GetY * w + GetX;
if(pIn[Index] > c)
c = pIn[Index];
}
}
pOut[y * w + x] = c;
}
}
void InitTextures(int Width, int Height, IGraphics::CTextureHandle (&aTextures)[2], uint8_t *(&aTextureData)[2])
{
size_t NewTextureSize = (size_t)Width * (size_t)Height * 1;
void *pTmpTextData = malloc(NewTextureSize);
void *pTmpTextOutlineData = malloc(NewTextureSize);
mem_copy(pTmpTextData, aTextureData[0], NewTextureSize);
mem_copy(pTmpTextOutlineData, aTextureData[1], NewTextureSize);
Graphics()->LoadTextTextures(Width, Height, aTextures[0], aTextures[1], pTmpTextData, pTmpTextOutlineData);
}
void UnloadTextures(IGraphics::CTextureHandle (&aTextures)[2])
{
Graphics()->UnloadTextTextures(aTextures[0], aTextures[1]);
}
void IncreaseFontTextureImpl(CFont *pFont, int TextureIndex, int NewDimensions)
{
unsigned char *pTmpTexBuffer = new unsigned char[NewDimensions * NewDimensions];
mem_zero(pTmpTexBuffer, (size_t)NewDimensions * NewDimensions * sizeof(unsigned char));
for(int y = 0; y < pFont->m_CurTextureDimensions[TextureIndex]; ++y)
{
for(int x = 0; x < pFont->m_CurTextureDimensions[TextureIndex]; ++x)
{
pTmpTexBuffer[x + y * NewDimensions] = pFont->m_TextureData[TextureIndex][x + y * pFont->m_CurTextureDimensions[TextureIndex]];
}
}
delete[] pFont->m_TextureData[TextureIndex];
pFont->m_TextureData[TextureIndex] = pTmpTexBuffer;
pFont->m_CurTextureDimensions[TextureIndex] = NewDimensions;
pFont->m_TextureSkyline[TextureIndex].m_vCurHeightOfPixelColumn.resize(NewDimensions, 0);
}
void IncreaseFontTexture(CFont *pFont)
{
int NewDimensions = pFont->m_CurTextureDimensions[0] * 2;
UnloadTextures(pFont->m_aTextures);
IncreaseFontTextureImpl(pFont, 0, NewDimensions);
IncreaseFontTextureImpl(pFont, 1, NewDimensions);
InitTextures(NewDimensions, NewDimensions, pFont->m_aTextures, pFont->m_TextureData);
}
int AdjustOutlineThicknessToFontSize(int OutlineThickness, int FontSize)
{
if(FontSize > 48)
OutlineThickness *= 4;
else if(FontSize >= 18)
OutlineThickness *= 2;
return OutlineThickness;
}
void UploadGlyph(CFont *pFont, int TextureIndex, int PosX, int PosY, int Width, int Height, const unsigned char *pData)
{
for(int y = 0; y < Height; ++y)
{
for(int x = 0; x < Width; ++x)
{
pFont->m_TextureData[TextureIndex][x + PosX + ((y + PosY) * pFont->m_CurTextureDimensions[TextureIndex])] = pData[x + y * Width];
}
}
Graphics()->UpdateTextTexture(pFont->m_aTextures[TextureIndex], PosX, PosY, Width, Height, pData);
}
// 128k * 2 of data used for rendering glyphs
unsigned char ms_aGlyphData[(1024 / 4) * (1024 / 4)];
unsigned char ms_aGlyphDataOutlined[(1024 / 4) * (1024 / 4)];
bool GetCharacterSpace(CFont *pFont, int TextureIndex, int Width, int Height, int &PosX, int &PosY)
{
if(pFont->m_CurTextureDimensions[TextureIndex] < Width)
return false;
if(pFont->m_CurTextureDimensions[TextureIndex] < Height)
return false;
// skyline bottom left algorithm
std::vector<int> &vSkylineHeights = pFont->m_TextureSkyline[TextureIndex].m_vCurHeightOfPixelColumn;
// search a fitting area with less pixel loss
int SmallestPixelLossAreaX = 0;
int SmallestPixelLossAreaY = pFont->m_CurTextureDimensions[TextureIndex] + 1;
int SmallestPixelLossCurPixelLoss = pFont->m_CurTextureDimensions[TextureIndex] * pFont->m_CurTextureDimensions[TextureIndex];
bool FoundAnyArea = false;
for(size_t i = 0; i < vSkylineHeights.size(); i++)
{
int CurHeight = vSkylineHeights[i];
int CurPixelLoss = 0;
// find width pixels, and we are happy
int AreaWidth = 1;
for(size_t n = i + 1; n < i + Width && n < vSkylineHeights.size(); ++n)
{
++AreaWidth;
if(vSkylineHeights[n] <= CurHeight)
{
CurPixelLoss += CurHeight - vSkylineHeights[n];
}
// if the height changed, we will use that new height and adjust the pixel loss
else
{
CurPixelLoss = 0;
CurHeight = vSkylineHeights[n];
for(size_t l = i; l <= n; ++l)
{
CurPixelLoss += CurHeight - vSkylineHeights[l];
}
}
}
// if the area is too high, continue
if(CurHeight + Height > pFont->m_CurTextureDimensions[TextureIndex])
continue;
// if the found area fits our needs, check if we can use it
if(AreaWidth == Width)
{
if(SmallestPixelLossCurPixelLoss >= CurPixelLoss)
{
if(CurHeight < SmallestPixelLossAreaY)
{
SmallestPixelLossCurPixelLoss = CurPixelLoss;
SmallestPixelLossAreaX = (int)i;
SmallestPixelLossAreaY = CurHeight;
FoundAnyArea = true;
if(CurPixelLoss == 0)
break;
}
}
}
}
if(FoundAnyArea)
{
PosX = SmallestPixelLossAreaX;
PosY = SmallestPixelLossAreaY;
for(int i = PosX; i < PosX + Width; ++i)
{
vSkylineHeights[i] = PosY + Height;
}
return true;
}
else
return false;
}
void RenderGlyph(CFont *pFont, CFontSizeData *pSizeData, int Chr)
{
FT_Bitmap *pBitmap;
int x = 0;
int y = 0;
unsigned int px, py;
FT_Face FtFace = pFont->m_FtFace;
FT_Set_Pixel_Sizes(FtFace, 0, pSizeData->m_FontSize);
FT_UInt GlyphIndex = 0;
if(FtFace->charmap)
GlyphIndex = FT_Get_Char_Index(FtFace, (FT_ULong)Chr);
if(GlyphIndex == 0)
{
for(CFont::SFontFallBack &FallbackFont : pFont->m_vFtFallbackFonts)
{
FtFace = FallbackFont.m_FtFace;
FT_Set_Pixel_Sizes(FtFace, 0, pSizeData->m_FontSize);
if(FtFace->charmap)
GlyphIndex = FT_Get_Char_Index(FtFace, (FT_ULong)Chr);
if(GlyphIndex != 0)
break;
}
if(GlyphIndex == 0)
{
const int ReplacementChr = 0x25a1; // White square to indicate missing glyph
FtFace = pFont->m_FtFace;
GlyphIndex = FT_Get_Char_Index(FtFace, (FT_ULong)ReplacementChr);
if(GlyphIndex == 0)
{
dbg_msg("textrender", "font has no glyph for either %d or replacement char %d", Chr, ReplacementChr);
return;
}
}
}
if(FT_Load_Glyph(FtFace, GlyphIndex, FT_LOAD_RENDER | FT_LOAD_NO_BITMAP))
{
dbg_msg("textrender", "error loading glyph %d", Chr);
return;
}
pBitmap = &FtFace->glyph->bitmap;
unsigned int RealWidth = pBitmap->width;
unsigned int RealHeight = pBitmap->rows;
// adjust spacing
int OutlineThickness = 0;
if(RealWidth > 0)
{
OutlineThickness = AdjustOutlineThicknessToFontSize(1, pSizeData->m_FontSize);
x += (OutlineThickness + 1);
y += (OutlineThickness + 1);
}
unsigned int Width = RealWidth + x * 2;
unsigned int Height = RealHeight + y * 2;
int X = 0;
int Y = 0;
if(Width > 0 && Height > 0)
{
// prepare glyph data
mem_zero(ms_aGlyphData, Width * Height);
for(py = 0; py < pBitmap->rows; py++)
for(px = 0; px < pBitmap->width; px++)
ms_aGlyphData[(py + y) * Width + px + x] = pBitmap->buffer[py * pBitmap->width + px];
// upload the glyph
while(!GetCharacterSpace(pFont, 0, (int)Width, (int)Height, X, Y))
{
IncreaseFontTexture(pFont);
}
UploadGlyph(pFont, 0, X, Y, (int)Width, (int)Height, ms_aGlyphData);
Grow(ms_aGlyphData, ms_aGlyphDataOutlined, Width, Height, OutlineThickness);
while(!GetCharacterSpace(pFont, 1, (int)Width, (int)Height, X, Y))
{
IncreaseFontTexture(pFont);
}
UploadGlyph(pFont, 1, X, Y, (int)Width, (int)Height, ms_aGlyphDataOutlined);
}
// set char info
{
SFontSizeChar *pFontchr = &pSizeData->m_Chars[Chr];
int BMPHeight = pBitmap->rows + y * 2;
int BMPWidth = pBitmap->width + x * 2;
pFontchr->m_ID = Chr;
pFontchr->m_Height = Height;
pFontchr->m_Width = Width;
pFontchr->m_CharHeight = RealHeight;
pFontchr->m_CharWidth = RealWidth;
pFontchr->m_OffsetX = (FtFace->glyph->metrics.horiBearingX >> 6);
pFontchr->m_OffsetY = -((FtFace->glyph->metrics.height >> 6) - (FtFace->glyph->metrics.horiBearingY >> 6));
pFontchr->m_AdvanceX = (FtFace->glyph->advance.x >> 6);
pFontchr->m_aUVs[0] = X;
pFontchr->m_aUVs[1] = Y;
pFontchr->m_aUVs[2] = pFontchr->m_aUVs[0] + BMPWidth;
pFontchr->m_aUVs[3] = pFontchr->m_aUVs[1] + BMPHeight;
pFontchr->m_GlyphIndex = GlyphIndex;
}
}
SFontSizeChar *GetChar(CFont *pFont, CFontSizeData *pSizeData, int Chr)
{
std::map<int, SFontSizeChar>::iterator it = pSizeData->m_Chars.find(Chr);
if(it == pSizeData->m_Chars.end())
{
// render and add character
SFontSizeChar &FontSizeChr = pSizeData->m_Chars[Chr];
RenderGlyph(pFont, pSizeData, Chr);
return &FontSizeChr;
}
else
{
return &it->second;
}
}
float Kerning(CFont *pFont, FT_UInt GlyphIndexLeft, FT_UInt GlyphIndexRight)
{
FT_Vector Kerning = {0, 0};
FT_Get_Kerning(pFont->m_FtFace, GlyphIndexLeft, GlyphIndexRight, FT_KERNING_DEFAULT, &Kerning);
return (Kerning.x >> 6);
}
public:
CTextRender()
{
m_pGraphics = 0;
m_Color = DefaultTextColor();
m_OutlineColor = DefaultTextOutlineColor();
m_SelectionColor = DefaultSelectionColor();
m_pCurFont = 0;
m_pDefaultFont = 0;
m_FTLibrary = 0;
m_RenderFlags = 0;
m_CursorRenderTime = time_get_nanoseconds();
}
virtual ~CTextRender()
{
for(auto *pTextCont : m_vpTextContainers)
{
pTextCont->Reset();
delete pTextCont;
}
m_vpTextContainers.clear();
for(auto &pFont : m_vpFonts)
{
FT_Done_Face(pFont->m_FtFace);
for(CFont::SFontFallBack &FallbackFont : pFont->m_vFtFallbackFonts)
{
FT_Done_Face(FallbackFont.m_FtFace);
}
delete pFont;
}
if(m_FTLibrary != 0)
FT_Done_FreeType(m_FTLibrary);
}
void Init() override
{
m_pGraphics = Kernel()->RequestInterface<IGraphics>();
FT_Init_FreeType(&m_FTLibrary);
// print freetype version
{
int LMajor, LMinor, LPatch;
FT_Library_Version(m_FTLibrary, &LMajor, &LMinor, &LPatch);
dbg_msg("freetype", "freetype version %d.%d.%d (compiled = %d.%d.%d)", LMajor, LMinor, LPatch,
FREETYPE_MAJOR, FREETYPE_MINOR, FREETYPE_PATCH);
}
m_FirstFreeTextContainerIndex = -1;
m_DefaultTextContainerInfo.m_Stride = sizeof(STextCharQuadVertex);
m_DefaultTextContainerInfo.m_VertBufferBindingIndex = -1;
m_DefaultTextContainerInfo.m_vAttributes.emplace_back();
SBufferContainerInfo::SAttribute *pAttr = &m_DefaultTextContainerInfo.m_vAttributes.back();
pAttr->m_DataTypeCount = 2;
pAttr->m_FuncType = 0;
pAttr->m_Normalized = false;
pAttr->m_pOffset = 0;
pAttr->m_Type = GRAPHICS_TYPE_FLOAT;
m_DefaultTextContainerInfo.m_vAttributes.emplace_back();
pAttr = &m_DefaultTextContainerInfo.m_vAttributes.back();
pAttr->m_DataTypeCount = 2;
pAttr->m_FuncType = 0;
pAttr->m_Normalized = false;
pAttr->m_pOffset = (void *)(sizeof(float) * 2);
pAttr->m_Type = GRAPHICS_TYPE_FLOAT;
m_DefaultTextContainerInfo.m_vAttributes.emplace_back();
pAttr = &m_DefaultTextContainerInfo.m_vAttributes.back();
pAttr->m_DataTypeCount = 4;
pAttr->m_FuncType = 0;
pAttr->m_Normalized = true;
pAttr->m_pOffset = (void *)(sizeof(float) * 2 + sizeof(float) * 2);
pAttr->m_Type = GRAPHICS_TYPE_UNSIGNED_BYTE;
IStorage *pStorage = Kernel()->RequestInterface<IStorage>();
char aFilename[IO_MAX_PATH_LENGTH];
const char *pFontFile = "fonts/Icons.otf";
IOHANDLE File = pStorage->OpenFile(pFontFile, IOFLAG_READ, IStorage::TYPE_ALL, aFilename, sizeof(aFilename));
if(File)
{
void *pBuf;
unsigned Size;
io_read_all(File, &pBuf, &Size);
io_close(File);
LoadFont(aFilename, (unsigned char *)pBuf, Size);
}
}
CFont *LoadFont(const char *pFilename, const unsigned char *pBuf, size_t Size) override
{
CFont *pFont = new CFont();
str_copy(pFont->m_aFilename, pFilename, sizeof(pFont->m_aFilename));
if(FT_New_Memory_Face(m_FTLibrary, pBuf, Size, 0, &pFont->m_FtFace))
{
delete pFont;
return NULL;
}
dbg_msg("textrender", "loaded pFont from '%s'", pFilename);
pFont->m_pBuf = (void *)pBuf;
pFont->m_CurTextureDimensions[0] = 1024;
pFont->m_TextureData[0] = new unsigned char[pFont->m_CurTextureDimensions[0] * pFont->m_CurTextureDimensions[0]];
mem_zero(pFont->m_TextureData[0], (size_t)pFont->m_CurTextureDimensions[0] * pFont->m_CurTextureDimensions[0] * sizeof(unsigned char));
pFont->m_CurTextureDimensions[1] = 1024;
pFont->m_TextureData[1] = new unsigned char[pFont->m_CurTextureDimensions[1] * pFont->m_CurTextureDimensions[1]];
mem_zero(pFont->m_TextureData[1], (size_t)pFont->m_CurTextureDimensions[1] * pFont->m_CurTextureDimensions[1] * sizeof(unsigned char));
InitTextures(pFont->m_CurTextureDimensions[0], pFont->m_CurTextureDimensions[0], pFont->m_aTextures, pFont->m_TextureData);
pFont->m_TextureSkyline[0].m_vCurHeightOfPixelColumn.resize(pFont->m_CurTextureDimensions[0], 0);
pFont->m_TextureSkyline[1].m_vCurHeightOfPixelColumn.resize(pFont->m_CurTextureDimensions[1], 0);
pFont->InitFontSizes();
m_vpFonts.push_back(pFont);
return pFont;
}
bool LoadFallbackFont(CFont *pFont, const char *pFilename, const unsigned char *pBuf, size_t Size) override
{
CFont::SFontFallBack FallbackFont;
FallbackFont.m_pBuf = (void *)pBuf;
str_copy(FallbackFont.m_aFilename, pFilename, sizeof(FallbackFont.m_aFilename));
if(FT_New_Memory_Face(m_FTLibrary, pBuf, Size, 0, &FallbackFont.m_FtFace) == 0)
{
dbg_msg("textrender", "loaded fallback font from '%s'", pFilename);
pFont->m_vFtFallbackFonts.emplace_back(FallbackFont);
return true;
}
return false;
}
CFont *GetFont(int FontIndex) override
{
if(FontIndex >= 0 && FontIndex < (int)m_vpFonts.size())
return m_vpFonts[FontIndex];
return NULL;
}
CFont *GetFont(const char *pFilename) override
{
for(auto &pFont : m_vpFonts)
{
if(str_comp(pFilename, pFont->m_aFilename) == 0)
return pFont;
}
return NULL;
}
void SetDefaultFont(CFont *pFont) override
{
dbg_msg("textrender", "default pFont set %p", pFont);
m_pDefaultFont = pFont;
m_pCurFont = m_pDefaultFont;
}
void SetCurFont(CFont *pFont) override
{
if(pFont == NULL)
m_pCurFont = m_pDefaultFont;
else
m_pCurFont = pFont;
}
void SetCursor(CTextCursor *pCursor, float x, float y, float FontSize, int Flags) override
{
mem_zero(pCursor, sizeof(*pCursor));
pCursor->m_FontSize = FontSize;
pCursor->m_StartX = x;
pCursor->m_StartY = y;
pCursor->m_X = x;
pCursor->m_Y = y;
pCursor->m_LineCount = 1;
pCursor->m_LineWidth = -1;
pCursor->m_Flags = Flags;
pCursor->m_GlyphCount = 0;
pCursor->m_CharCount = 0;
pCursor->m_MaxCharacterHeight = 0;
pCursor->m_LongestLineWidth = 0;
pCursor->m_CalculateSelectionMode = TEXT_CURSOR_SELECTION_MODE_NONE;
pCursor->m_PressMouseX = 0;
pCursor->m_PressMouseY = 0;
pCursor->m_ReleaseMouseX = 0;
pCursor->m_ReleaseMouseY = 0;
pCursor->m_SelectionStart = 0;
pCursor->m_SelectionEnd = 0;
pCursor->m_CursorMode = TEXT_CURSOR_CURSOR_MODE_NONE;
pCursor->m_CursorCharacter = -1;
}
void MoveCursor(CTextCursor *pCursor, float x, float y) override
{
pCursor->m_X += x;
pCursor->m_Y += y;
}
void SetCursorPosition(CTextCursor *pCursor, float x, float y) override
{
pCursor->m_X = x;
pCursor->m_Y = y;
}
void Text(void *pFontSetV, float x, float y, float Size, const char *pText, float LineWidth) override
{
CTextCursor Cursor;
SetCursor(&Cursor, x, y, Size, TEXTFLAG_RENDER);
Cursor.m_LineWidth = LineWidth;
int OldRenderFlags = m_RenderFlags;
if(LineWidth <= 0)
SetRenderFlags(OldRenderFlags | ETextRenderFlags::TEXT_RENDER_FLAG_NO_FIRST_CHARACTER_X_BEARING | ETextRenderFlags::TEXT_RENDER_FLAG_NO_LAST_CHARACTER_ADVANCE);
TextEx(&Cursor, pText, -1);
SetRenderFlags(OldRenderFlags);
}
float TextWidth(void *pFontSetV, float Size, const char *pText, int StrLength, float LineWidth, float *pAlignedHeight = NULL, float *pMaxCharacterHeightInLine = NULL) override
{
CTextCursor Cursor;
SetCursor(&Cursor, 0, 0, Size, 0);
Cursor.m_LineWidth = LineWidth;
int OldRenderFlags = m_RenderFlags;
if(LineWidth <= 0)
SetRenderFlags(OldRenderFlags | ETextRenderFlags::TEXT_RENDER_FLAG_NO_FIRST_CHARACTER_X_BEARING | ETextRenderFlags::TEXT_RENDER_FLAG_NO_LAST_CHARACTER_ADVANCE);
TextEx(&Cursor, pText, StrLength);
SetRenderFlags(OldRenderFlags);
if(pAlignedHeight != NULL)
*pAlignedHeight = Cursor.m_AlignedFontSize;
if(pMaxCharacterHeightInLine != NULL)
*pMaxCharacterHeightInLine = Cursor.m_MaxCharacterHeight;
return Cursor.m_X;
}
int TextLineCount(void *pFontSetV, float Size, const char *pText, float LineWidth) override
{
CTextCursor Cursor;
SetCursor(&Cursor, 0, 0, Size, 0);
Cursor.m_LineWidth = LineWidth;
int OldRenderFlags = m_RenderFlags;
if(LineWidth <= 0)
SetRenderFlags(OldRenderFlags | ETextRenderFlags::TEXT_RENDER_FLAG_NO_FIRST_CHARACTER_X_BEARING | ETextRenderFlags::TEXT_RENDER_FLAG_NO_LAST_CHARACTER_ADVANCE);
TextEx(&Cursor, pText, -1);
SetRenderFlags(OldRenderFlags);
return Cursor.m_LineCount;
}
void TextColor(float r, float g, float b, float a) override
{
m_Color.r = r;
m_Color.g = g;
m_Color.b = b;
m_Color.a = a;
}
void TextColor(ColorRGBA rgb) override { m_Color = rgb; }
void TextOutlineColor(float r, float g, float b, float a) override
{
m_OutlineColor.r = r;
m_OutlineColor.g = g;
m_OutlineColor.b = b;
m_OutlineColor.a = a;
}
void TextOutlineColor(ColorRGBA rgb) override { m_OutlineColor = rgb; }
void TextSelectionColor(float r, float g, float b, float a) override
{
m_SelectionColor.r = r;
m_SelectionColor.g = g;
m_SelectionColor.b = b;
m_SelectionColor.a = a;
}
void TextSelectionColor(ColorRGBA rgb) override { m_SelectionColor = rgb; }
ColorRGBA GetTextColor() override { return m_Color; }
ColorRGBA GetTextOutlineColor() override { return m_OutlineColor; }
ColorRGBA GetTextSelectionColor() override { return m_SelectionColor; }
void TextEx(CTextCursor *pCursor, const char *pText, int Length) override
{
int OldRenderFlags = m_RenderFlags;
m_RenderFlags |= TEXT_RENDER_FLAG_ONE_TIME_USE;
int TextCont = CreateTextContainer(pCursor, pText, Length);
m_RenderFlags = OldRenderFlags;
if(TextCont != -1)
{
if((pCursor->m_Flags & TEXTFLAG_RENDER) != 0)
{
STextRenderColor TextColor = DefaultTextColor();
STextRenderColor TextColorOutline = DefaultTextOutlineColor();
RenderTextContainer(TextCont, &TextColor, &TextColorOutline);
}
DeleteTextContainer(TextCont);
}
}
int CreateTextContainer(CTextCursor *pCursor, const char *pText, int Length = -1) override
{
CFont *pFont = pCursor->m_pFont;
// fetch pFont data
if(!pFont)
pFont = m_pCurFont;
if(!pFont)
return -1;
bool IsRendered = (pCursor->m_Flags & TEXTFLAG_RENDER) != 0;
int ContainerIndex = GetFreeTextContainerIndex();
STextContainer &TextContainer = GetTextContainer(ContainerIndex);
TextContainer.m_pFont = pFont;
TextContainer.m_SingleTimeUse = (m_RenderFlags & TEXT_RENDER_FLAG_ONE_TIME_USE) != 0;
CFontSizeData *pSizeData = NULL;
float ScreenX0, ScreenY0, ScreenX1, ScreenY1;
float FakeToScreenX, FakeToScreenY;
int ActualSize;
float Size = pCursor->m_FontSize;
// calculate the font size of the displayed glyphs
Graphics()->GetScreen(&ScreenX0, &ScreenY0, &ScreenX1, &ScreenY1);
FakeToScreenX = (Graphics()->ScreenWidth() / (ScreenX1 - ScreenX0));
FakeToScreenY = (Graphics()->ScreenHeight() / (ScreenY1 - ScreenY0));
int ActualX = (int)((pCursor->m_X * FakeToScreenX) + 0.5f);
int ActualY = (int)((pCursor->m_Y * FakeToScreenY) + 0.5f);
TextContainer.m_AlignedStartX = ActualX / FakeToScreenX;
TextContainer.m_AlignedStartY = ActualY / FakeToScreenY;
TextContainer.m_X = pCursor->m_X;
TextContainer.m_Y = pCursor->m_Y;
TextContainer.m_Flags = pCursor->m_Flags;
int OldRenderFlags = m_RenderFlags;
if(pCursor->m_LineWidth <= 0)
SetRenderFlags(OldRenderFlags | ETextRenderFlags::TEXT_RENDER_FLAG_NO_FIRST_CHARACTER_X_BEARING | ETextRenderFlags::TEXT_RENDER_FLAG_NO_LAST_CHARACTER_ADVANCE);
TextContainer.m_RenderFlags = m_RenderFlags;
SetRenderFlags(OldRenderFlags);
// same with size
ActualSize = (int)(Size * FakeToScreenY);
pSizeData = pFont->GetFontSize(ActualSize);
TextContainer.m_FontSize = pSizeData->m_FontSize;
AppendTextContainer(pCursor, ContainerIndex, pText, Length);
if(TextContainer.m_StringInfo.m_vCharacterQuads.empty() && TextContainer.m_StringInfo.m_SelectionQuadContainerIndex == -1 && IsRendered)
{
FreeTextContainer(ContainerIndex);
return -1;
}
else
{
TextContainer.m_StringInfo.m_QuadNum = TextContainer.m_StringInfo.m_vCharacterQuads.size();
if(Graphics()->IsTextBufferingEnabled() && IsRendered && !TextContainer.m_StringInfo.m_vCharacterQuads.empty())
{
if((TextContainer.m_RenderFlags & TEXT_RENDER_FLAG_NO_AUTOMATIC_QUAD_UPLOAD) == 0)
{
UploadTextContainer(ContainerIndex);
}
}
TextContainer.m_LineCount = pCursor->m_LineCount;
TextContainer.m_GlyphCount = pCursor->m_GlyphCount;
TextContainer.m_CharCount = pCursor->m_CharCount;
TextContainer.m_MaxLines = pCursor->m_MaxLines;
TextContainer.m_StartX = pCursor->m_StartX;
TextContainer.m_StartY = pCursor->m_StartY;
TextContainer.m_LineWidth = pCursor->m_LineWidth;
TextContainer.m_UnscaledFontSize = pCursor->m_FontSize;
}
return ContainerIndex;
}
void AppendTextContainer(CTextCursor *pCursor, int TextContainerIndex, const char *pText, int Length = -1) override
{
STextContainer &TextContainer = GetTextContainer(TextContainerIndex);
CFontSizeData *pSizeData = NULL;
float ScreenX0, ScreenY0, ScreenX1, ScreenY1;
float FakeToScreenX, FakeToScreenY;
int ActualSize;
int GotNewLine = 0;
int GotNewLineLast = 0;
float DrawX = 0.0f, DrawY = 0.0f;
int LineCount = 0;
float CursorX, CursorY;
float Size = pCursor->m_FontSize;
// calculate the font size of the displayed glyphs
Graphics()->GetScreen(&ScreenX0, &ScreenY0, &ScreenX1, &ScreenY1);
FakeToScreenX = (Graphics()->ScreenWidth() / (ScreenX1 - ScreenX0));
FakeToScreenY = (Graphics()->ScreenHeight() / (ScreenY1 - ScreenY0));
int ActualX = (int)((pCursor->m_X * FakeToScreenX) + 0.5f);
int ActualY = (int)((pCursor->m_Y * FakeToScreenY) + 0.5f);
CursorX = ActualX / FakeToScreenX;
CursorY = ActualY / FakeToScreenY;
// same with size
ActualSize = (int)(Size * FakeToScreenY);
Size = ActualSize / FakeToScreenY;
pCursor->m_AlignedFontSize = Size;
pSizeData = TextContainer.m_pFont->GetFontSize(TextContainer.m_FontSize);
// string length
if(Length < 0)
Length = str_length(pText);
float Scale = 1.0f / pSizeData->m_FontSize;
const char *pCurrent = (char *)pText;
const char *pEnd = pCurrent + Length;
const char *pEllipsis = "…";
SFontSizeChar *pEllipsisChr = nullptr;
if(pCursor->m_Flags & TEXTFLAG_ELLIPSIS_AT_END)
{
if(pCursor->m_LineWidth != -1 && pCursor->m_LineWidth < TextWidth(0, pCursor->m_FontSize, pText, -1, -1.0f))
{
pEllipsisChr = GetChar(TextContainer.m_pFont, pSizeData, 0x2026); // …
if(pEllipsisChr == nullptr)
{
// no ellipsis char in font, just stop at end instead
pCursor->m_Flags &= ~TEXTFLAG_ELLIPSIS_AT_END;
pCursor->m_Flags |= TEXTFLAG_STOP_AT_END;
}
}
}
int RenderFlags = TextContainer.m_RenderFlags;
if((RenderFlags & TEXT_RENDER_FLAG_NO_PIXEL_ALIGMENT) != 0)
{
DrawX = pCursor->m_X;
DrawY = pCursor->m_Y;
}
else
{
DrawX = CursorX;
DrawY = CursorY;
}
LineCount = pCursor->m_LineCount;
FT_UInt LastCharGlyphIndex = 0;
size_t CharacterCounter = 0;
bool IsRendered = (pCursor->m_Flags & TEXTFLAG_RENDER) != 0;
IGraphics::CQuadItem CursorQuads[2];
bool HasCursor = false;
float CursorInnerWidth = (((ScreenX1 - ScreenX0) / Graphics()->ScreenWidth())) * 2;
float CursorOuterWidth = CursorInnerWidth * 2;
float CursorOuterInnerDiff = (CursorOuterWidth - CursorInnerWidth) / 2;
std::vector<IGraphics::CQuadItem> vSelectionQuads;
bool SelectionStarted = false;
bool SelectionUsedPress = false;
bool SelectionUsedRelease = false;
int SelectionStartChar = -1;
int SelectionEndChar = -1;
auto &&CheckInsideChar = [&](bool CheckOuter, int CursorX_, int CursorY_, float LastCharX, float LastCharWidth, float CharX, float CharWidth, float CharY) -> bool {
return (LastCharX - LastCharWidth / 2 <= CursorX_ &&
CharX + CharWidth / 2 > CursorX_ &&
CharY - Size <= CursorY_ &&
CharY > CursorY_) ||
(CheckOuter &&
CharY - Size > CursorY_);
};
auto &&CheckSelectionStart = [&](bool CheckOuter, int CursorX_, int CursorY_, int &SelectionChar, bool &SelectionUsedCase, float LastCharX, float LastCharWidth, float CharX, float CharWidth, float CharY) {
if(!SelectionStarted && !SelectionUsedCase)
{
if(CheckInsideChar(CheckOuter, CursorX_, CursorY_, LastCharX, LastCharWidth, CharX, CharWidth, CharY))
{
SelectionChar = CharacterCounter;
SelectionStarted = !SelectionStarted;
SelectionUsedCase = true;
}
}
};
auto &&CheckOutsideChar = [&](bool CheckOuter, int CursorX_, int CursorY_, float CharX, float CharWidth, float CharY) -> bool {
return (CharX + CharWidth / 2 > CursorX_ &&
CharY - Size <= CursorY_ &&
CharY > CursorY_) ||
(CheckOuter &&
CharY <= CursorY_);
};
auto &&CheckSelectionEnd = [&](bool CheckOuter, int CursorX_, int CursorY_, int &SelectionChar, bool &SelectionUsedCase, float CharX, float CharWidth, float CharY) {
if(SelectionStarted && !SelectionUsedCase)
{
if(CheckOutsideChar(CheckOuter, CursorX_, CursorY_, CharX, CharWidth, CharY))
{
SelectionChar = CharacterCounter;
SelectionStarted = !SelectionStarted;
SelectionUsedCase = true;
}
}
};
float LastSelX = DrawX;
float LastSelWidth = 0;
float LastCharX = DrawX;
float LastCharWidth = 0;
auto &&StartNewLine = [&]() {
DrawX = pCursor->m_StartX;
DrawY += Size;
if((RenderFlags & TEXT_RENDER_FLAG_NO_PIXEL_ALIGMENT) == 0)
{
DrawX = (int)((DrawX * FakeToScreenX) + 0.5f) / FakeToScreenX; // realign
DrawY = (int)((DrawY * FakeToScreenY) + 0.5f) / FakeToScreenY;
}
LastSelX = DrawX;
LastSelWidth = 0;
LastCharX = DrawX;
LastCharWidth = 0;
++LineCount;
};
if(pCursor->m_CalculateSelectionMode != TEXT_CURSOR_SELECTION_MODE_NONE || pCursor->m_CursorMode != TEXT_CURSOR_CURSOR_MODE_NONE)
{
if(IsRendered)
{
if(TextContainer.m_StringInfo.m_SelectionQuadContainerIndex != -1)
Graphics()->QuadContainerReset(TextContainer.m_StringInfo.m_SelectionQuadContainerIndex);
}
// if in calculate mode, also calculate the cursor
if(pCursor->m_CursorMode == TEXT_CURSOR_CURSOR_MODE_CALCULATE)
pCursor->m_CursorCharacter = -1;
}
while(pCurrent < pEnd && (pCursor->m_MaxLines < 1 || LineCount <= pCursor->m_MaxLines) && pCurrent != pEllipsis)
{
int NewLine = 0;
const char *pBatchEnd = pEnd;
if(pCursor->m_LineWidth > 0 && !(pCursor->m_Flags & TEXTFLAG_STOP_AT_END) && !(pCursor->m_Flags & TEXTFLAG_ELLIPSIS_AT_END))
{
int Wlen = minimum(WordLength((char *)pCurrent), (int)(pEnd - pCurrent));
CTextCursor Compare = *pCursor;
Compare.m_CalculateSelectionMode = TEXT_CURSOR_SELECTION_MODE_NONE;
Compare.m_CursorMode = TEXT_CURSOR_CURSOR_MODE_NONE;
Compare.m_X = DrawX;
Compare.m_Y = DrawY;
Compare.m_Flags &= ~TEXTFLAG_RENDER;
Compare.m_LineWidth = -1;
TextEx(&Compare, pCurrent, Wlen);
if(Compare.m_X - DrawX > pCursor->m_LineWidth)
{
// word can't be fitted in one line, cut it
CTextCursor Cutter = *pCursor;
Cutter.m_CalculateSelectionMode = TEXT_CURSOR_SELECTION_MODE_NONE;
Cutter.m_CursorMode = TEXT_CURSOR_CURSOR_MODE_NONE;
Cutter.m_GlyphCount = 0;
Cutter.m_CharCount = 0;
Cutter.m_X = DrawX;
Cutter.m_Y = DrawY;
Cutter.m_Flags &= ~TEXTFLAG_RENDER;
Cutter.m_Flags |= TEXTFLAG_STOP_AT_END;
TextEx(&Cutter, pCurrent, Wlen);
int WordGlyphs = Cutter.m_GlyphCount;
Wlen = Cutter.m_CharCount;
NewLine = 1;
if(WordGlyphs <= 3 && GotNewLineLast == 0) // if we can't place 3 chars of the word on this line, take the next
Wlen = 0;
}
else if(Compare.m_X - pCursor->m_StartX > pCursor->m_LineWidth && GotNewLineLast == 0)
{
NewLine = 1;
Wlen = 0;
}
pBatchEnd = pCurrent + Wlen;
}
const char *pTmp = pCurrent;
int NextCharacter = str_utf8_decode(&pTmp);
while(pCurrent < pBatchEnd && pCurrent != pEllipsis)
{
pCursor->m_CharCount += pTmp - pCurrent;
pCurrent = pTmp;
int Character = NextCharacter;
NextCharacter = str_utf8_decode(&pTmp);
if(Character == '\n')
{
LastCharGlyphIndex = 0;
++CharacterCounter;
StartNewLine();
if(pCursor->m_MaxLines > 0 && LineCount > pCursor->m_MaxLines)
break;
continue;
}
SFontSizeChar *pChr = GetChar(TextContainer.m_pFont, pSizeData, Character);
if(pChr)
{
bool ApplyBearingX = !(((RenderFlags & TEXT_RENDER_FLAG_NO_X_BEARING) != 0) || (CharacterCounter == 0 && (RenderFlags & TEXT_RENDER_FLAG_NO_FIRST_CHARACTER_X_BEARING) != 0));
float Advance = ((((RenderFlags & TEXT_RENDER_FLAG_ONLY_ADVANCE_WIDTH) != 0) ? (pChr->m_Width) : (pChr->m_AdvanceX + ((!ApplyBearingX) ? (-pChr->m_OffsetX) : 0.f)))) * Scale * Size;
float OutLineRealDiff = (pChr->m_Width - pChr->m_CharWidth) * Scale * Size;
float CharKerning = 0.f;
if((RenderFlags & TEXT_RENDER_FLAG_KERNING) != 0)
CharKerning = Kerning(TextContainer.m_pFont, LastCharGlyphIndex, pChr->m_GlyphIndex) * Scale * Size;
LastCharGlyphIndex = pChr->m_GlyphIndex;
if(pEllipsisChr != nullptr && pCursor->m_Flags & TEXTFLAG_ELLIPSIS_AT_END && pCurrent < pBatchEnd && pCurrent != pEllipsis)
{
float AdvanceEllipsis = ((((RenderFlags & TEXT_RENDER_FLAG_ONLY_ADVANCE_WIDTH) != 0) ? (pEllipsisChr->m_Width) : (pEllipsisChr->m_AdvanceX + ((!ApplyBearingX) ? (-pEllipsisChr->m_OffsetX) : 0.f)))) * Scale * Size;
float CharKerningEllipsis = 0.f;
if((RenderFlags & TEXT_RENDER_FLAG_KERNING) != 0)
{
CharKerningEllipsis = Kerning(TextContainer.m_pFont, pChr->m_GlyphIndex, pEllipsisChr->m_GlyphIndex) * Scale * Size;
}
if(DrawX + CharKerning + Advance + CharKerningEllipsis + AdvanceEllipsis - pCursor->m_StartX > pCursor->m_LineWidth)
{
// we hit the end, only render ellipsis and finish
pTmp = pEllipsis;
NextCharacter = 0x2026;
continue;
}
}
if(pCursor->m_Flags & TEXTFLAG_STOP_AT_END && (DrawX + CharKerning) + Advance - pCursor->m_StartX > pCursor->m_LineWidth)
{
// we hit the end of the line, no more to render or count
pCurrent = pEnd;
break;
}
float BearingX = (!ApplyBearingX ? 0.f : pChr->m_OffsetX) * Scale * Size;
float CharWidth = pChr->m_Width * Scale * Size;
float BearingY = (((RenderFlags & TEXT_RENDER_FLAG_NO_Y_BEARING) != 0) ? 0.f : (pChr->m_OffsetY * Scale * Size));
float CharHeight = pChr->m_Height * Scale * Size;
if((RenderFlags & TEXT_RENDER_FLAG_NO_OVERSIZE) != 0)
{
if(CharHeight + BearingY > Size)
{
BearingY = 0;
float ScaleChar = (CharHeight + BearingY) / Size;
CharHeight = Size;
CharWidth /= ScaleChar;
}
}
float TmpY = (DrawY + Size);
float CharX = (DrawX + CharKerning) + BearingX;
float CharY = TmpY - BearingY;
// don't add text that isn't drawn, the color overwrite is used for that
if(m_Color.a != 0.f && IsRendered)
{
TextContainer.m_StringInfo.m_vCharacterQuads.emplace_back();
STextCharQuad &TextCharQuad = TextContainer.m_StringInfo.m_vCharacterQuads.back();
TextCharQuad.m_Vertices[0].m_X = CharX;
TextCharQuad.m_Vertices[0].m_Y = CharY;
TextCharQuad.m_Vertices[0].m_U = pChr->m_aUVs[0];
TextCharQuad.m_Vertices[0].m_V = pChr->m_aUVs[3];
TextCharQuad.m_Vertices[0].m_Color.m_R = (unsigned char)(m_Color.r * 255.f);
TextCharQuad.m_Vertices[0].m_Color.m_G = (unsigned char)(m_Color.g * 255.f);
TextCharQuad.m_Vertices[0].m_Color.m_B = (unsigned char)(m_Color.b * 255.f);
TextCharQuad.m_Vertices[0].m_Color.m_A = (unsigned char)(m_Color.a * 255.f);
TextCharQuad.m_Vertices[1].m_X = CharX + CharWidth;
TextCharQuad.m_Vertices[1].m_Y = CharY;
TextCharQuad.m_Vertices[1].m_U = pChr->m_aUVs[2];
TextCharQuad.m_Vertices[1].m_V = pChr->m_aUVs[3];
TextCharQuad.m_Vertices[1].m_Color.m_R = (unsigned char)(m_Color.r * 255.f);
TextCharQuad.m_Vertices[1].m_Color.m_G = (unsigned char)(m_Color.g * 255.f);
TextCharQuad.m_Vertices[1].m_Color.m_B = (unsigned char)(m_Color.b * 255.f);
TextCharQuad.m_Vertices[1].m_Color.m_A = (unsigned char)(m_Color.a * 255.f);
TextCharQuad.m_Vertices[2].m_X = CharX + CharWidth;
TextCharQuad.m_Vertices[2].m_Y = CharY - CharHeight;
TextCharQuad.m_Vertices[2].m_U = pChr->m_aUVs[2];
TextCharQuad.m_Vertices[2].m_V = pChr->m_aUVs[1];
TextCharQuad.m_Vertices[2].m_Color.m_R = (unsigned char)(m_Color.r * 255.f);
TextCharQuad.m_Vertices[2].m_Color.m_G = (unsigned char)(m_Color.g * 255.f);
TextCharQuad.m_Vertices[2].m_Color.m_B = (unsigned char)(m_Color.b * 255.f);
TextCharQuad.m_Vertices[2].m_Color.m_A = (unsigned char)(m_Color.a * 255.f);
TextCharQuad.m_Vertices[3].m_X = CharX;
TextCharQuad.m_Vertices[3].m_Y = CharY - CharHeight;
TextCharQuad.m_Vertices[3].m_U = pChr->m_aUVs[0];
TextCharQuad.m_Vertices[3].m_V = pChr->m_aUVs[1];
TextCharQuad.m_Vertices[3].m_Color.m_R = (unsigned char)(m_Color.r * 255.f);
TextCharQuad.m_Vertices[3].m_Color.m_G = (unsigned char)(m_Color.g * 255.f);
TextCharQuad.m_Vertices[3].m_Color.m_B = (unsigned char)(m_Color.b * 255.f);
TextCharQuad.m_Vertices[3].m_Color.m_A = (unsigned char)(m_Color.a * 255.f);
}
// calculate the full width from the last selection point to the end of this selection draw on screen
float SelWidth = (CharX + maximum(Advance, CharWidth - OutLineRealDiff / 2)) - (LastSelX + LastSelWidth);
float SelX = (LastSelX + LastSelWidth);
if(pCursor->m_CursorMode == TEXT_CURSOR_CURSOR_MODE_CALCULATE)
{
if(pCursor->m_CursorCharacter == -1 && CheckInsideChar(CharacterCounter == 0, pCursor->m_ReleaseMouseX, pCursor->m_ReleaseMouseY, CharacterCounter == 0 ? std::numeric_limits<float>::lowest() : LastCharX, LastCharWidth, CharX, CharWidth, TmpY))
{
pCursor->m_CursorCharacter = CharacterCounter;
}
}
if(pCursor->m_CalculateSelectionMode == TEXT_CURSOR_SELECTION_MODE_CALCULATE)
{
if(CharacterCounter == 0)
{
CheckSelectionStart(true, pCursor->m_PressMouseX, pCursor->m_PressMouseY, SelectionStartChar, SelectionUsedPress, std::numeric_limits<float>::lowest(), 0, CharX, CharWidth, TmpY);
CheckSelectionStart(true, pCursor->m_ReleaseMouseX, pCursor->m_ReleaseMouseY, SelectionEndChar, SelectionUsedRelease, std::numeric_limits<float>::lowest(), 0, CharX, CharWidth, TmpY);
}
// if selection didn't start and the mouse pos is atleast on 50% of the right side of the character start
CheckSelectionStart(false, pCursor->m_PressMouseX, pCursor->m_PressMouseY, SelectionStartChar, SelectionUsedPress, LastCharX, LastCharWidth, CharX, CharWidth, TmpY);
CheckSelectionStart(false, pCursor->m_ReleaseMouseX, pCursor->m_ReleaseMouseY, SelectionEndChar, SelectionUsedRelease, LastCharX, LastCharWidth, CharX, CharWidth, TmpY);
CheckSelectionEnd(false, pCursor->m_ReleaseMouseX, pCursor->m_ReleaseMouseY, SelectionEndChar, SelectionUsedRelease, CharX, CharWidth, TmpY);
CheckSelectionEnd(false, pCursor->m_PressMouseX, pCursor->m_PressMouseY, SelectionStartChar, SelectionUsedPress, CharX, CharWidth, TmpY);
}
if(pCursor->m_CalculateSelectionMode == TEXT_CURSOR_SELECTION_MODE_SET)
{
if((int)CharacterCounter == pCursor->m_SelectionStart)
{
SelectionStarted = !SelectionStarted;
SelectionStartChar = CharacterCounter;
SelectionUsedPress = true;
}
if((int)CharacterCounter == pCursor->m_SelectionEnd)
{
SelectionStarted = !SelectionStarted;
SelectionEndChar = CharacterCounter;
SelectionUsedRelease = true;
}
}
if(pCursor->m_CursorMode != TEXT_CURSOR_CURSOR_MODE_NONE)
{
if((int)CharacterCounter == pCursor->m_CursorCharacter)
{
HasCursor = true;
CursorQuads[0] = IGraphics::CQuadItem(SelX - CursorOuterInnerDiff, DrawY, CursorOuterWidth, Size);
CursorQuads[1] = IGraphics::CQuadItem(SelX, DrawY + CursorOuterInnerDiff, CursorInnerWidth, Size - CursorOuterInnerDiff * 2);
}
}
pCursor->m_MaxCharacterHeight = maximum(pCursor->m_MaxCharacterHeight, CharHeight + BearingY);
if(NextCharacter == 0 && (RenderFlags & TEXT_RENDER_FLAG_NO_LAST_CHARACTER_ADVANCE) != 0 && Character != ' ')
DrawX += BearingX + CharKerning + CharWidth;
else
DrawX += Advance + CharKerning;
pCursor->m_GlyphCount++;
++CharacterCounter;
if(SelectionStarted && IsRendered)
{
vSelectionQuads.emplace_back(SelX, DrawY, SelWidth, Size);
}
LastSelX = SelX;
LastSelWidth = SelWidth;
LastCharX = CharX;
LastCharWidth = CharWidth;
}
if(DrawX > pCursor->m_LongestLineWidth)
pCursor->m_LongestLineWidth = DrawX;
}
if(NewLine)
{
StartNewLine();
GotNewLine = 1;
GotNewLineLast = 1;
}
else
GotNewLineLast = 0;
}
if(!TextContainer.m_StringInfo.m_vCharacterQuads.empty() && IsRendered)
{
TextContainer.m_StringInfo.m_QuadNum = TextContainer.m_StringInfo.m_vCharacterQuads.size();
// setup the buffers
if(Graphics()->IsTextBufferingEnabled())
{
size_t DataSize = TextContainer.m_StringInfo.m_vCharacterQuads.size() * sizeof(STextCharQuad);
void *pUploadData = &TextContainer.m_StringInfo.m_vCharacterQuads[0];
if(TextContainer.m_StringInfo.m_QuadBufferObjectIndex != -1 && (TextContainer.m_RenderFlags & TEXT_RENDER_FLAG_NO_AUTOMATIC_QUAD_UPLOAD) == 0)
{
Graphics()->RecreateBufferObject(TextContainer.m_StringInfo.m_QuadBufferObjectIndex, DataSize, pUploadData, TextContainer.m_SingleTimeUse ? IGraphics::EBufferObjectCreateFlags::BUFFER_OBJECT_CREATE_FLAGS_ONE_TIME_USE_BIT : 0);
Graphics()->IndicesNumRequiredNotify(TextContainer.m_StringInfo.m_QuadNum * 6);
}
}
}
if(pCursor->m_CalculateSelectionMode == TEXT_CURSOR_SELECTION_MODE_CALCULATE)
{
pCursor->m_SelectionStart = -1;
pCursor->m_SelectionEnd = -1;
if(SelectionStarted)
{
CheckSelectionEnd(true, pCursor->m_ReleaseMouseX, pCursor->m_ReleaseMouseY, SelectionEndChar, SelectionUsedRelease, std::numeric_limits<float>::max(), 0, DrawY + Size);
CheckSelectionEnd(true, pCursor->m_PressMouseX, pCursor->m_PressMouseY, SelectionStartChar, SelectionUsedPress, std::numeric_limits<float>::max(), 0, DrawY + Size);
}
}
else if(pCursor->m_CalculateSelectionMode == TEXT_CURSOR_SELECTION_MODE_SET)
{
if((int)CharacterCounter == pCursor->m_SelectionStart)
{
SelectionStarted = !SelectionStarted;
SelectionStartChar = CharacterCounter;
SelectionUsedPress = true;
}
if((int)CharacterCounter == pCursor->m_SelectionEnd)
{
SelectionStarted = !SelectionStarted;
SelectionEndChar = CharacterCounter;
SelectionUsedRelease = true;
}
}
if(pCursor->m_CursorMode != TEXT_CURSOR_CURSOR_MODE_NONE)
{
if(pCursor->m_CursorMode == TEXT_CURSOR_CURSOR_MODE_CALCULATE && pCursor->m_CursorCharacter == -1 && CheckOutsideChar(true, pCursor->m_ReleaseMouseX, pCursor->m_ReleaseMouseY, std::numeric_limits<float>::max(), 0, DrawY + Size))
{
pCursor->m_CursorCharacter = CharacterCounter;
}
if((int)CharacterCounter == pCursor->m_CursorCharacter)
{
HasCursor = true;
CursorQuads[0] = IGraphics::CQuadItem((LastSelX + LastSelWidth) - CursorOuterInnerDiff, DrawY, CursorOuterWidth, Size);
CursorQuads[1] = IGraphics::CQuadItem((LastSelX + LastSelWidth), DrawY + CursorOuterInnerDiff, CursorInnerWidth, Size - CursorOuterInnerDiff * 2);
}
}
bool HasSelection = !vSelectionQuads.empty() && SelectionUsedPress && SelectionUsedRelease;
if((HasSelection || HasCursor) && IsRendered)
{
Graphics()->SetColor(1.f, 1.f, 1.f, 1.f);
if(TextContainer.m_StringInfo.m_SelectionQuadContainerIndex == -1)
TextContainer.m_StringInfo.m_SelectionQuadContainerIndex = Graphics()->CreateQuadContainer(false);
if(HasCursor)
Graphics()->QuadContainerAddQuads(TextContainer.m_StringInfo.m_SelectionQuadContainerIndex, CursorQuads, 2);
if(HasSelection)
Graphics()->QuadContainerAddQuads(TextContainer.m_StringInfo.m_SelectionQuadContainerIndex, &vSelectionQuads[0], (int)vSelectionQuads.size());
Graphics()->QuadContainerUpload(TextContainer.m_StringInfo.m_SelectionQuadContainerIndex);
TextContainer.m_HasCursor = HasCursor;
TextContainer.m_HasSelection = HasSelection;
if(HasSelection)
{
pCursor->m_SelectionStart = SelectionStartChar;
pCursor->m_SelectionEnd = SelectionEndChar;
}
else
{
pCursor->m_SelectionStart = -1;
pCursor->m_SelectionEnd = -1;
}
}
// even if no text is drawn the cursor position will be adjusted
pCursor->m_X = DrawX;
pCursor->m_LineCount = LineCount;
if(GotNewLine)
pCursor->m_Y = DrawY;
}
// just deletes and creates text container
void
RecreateTextContainer(CTextCursor *pCursor, int TextContainerIndex, const char *pText, int Length = -1) override
{
DeleteTextContainer(TextContainerIndex);
CreateTextContainer(pCursor, pText, Length);
}
void RecreateTextContainerSoft(CTextCursor *pCursor, int TextContainerIndex, const char *pText, int Length = -1) override
{
STextContainer &TextContainer = GetTextContainer(TextContainerIndex);
TextContainer.m_StringInfo.m_vCharacterQuads.clear();
TextContainer.m_StringInfo.m_QuadNum = 0;
// the text buffer gets then recreated by the appended quads
AppendTextContainer(pCursor, TextContainerIndex, pText, Length);
}
void DeleteTextContainer(int TextContainerIndex) override
{
STextContainer &TextContainer = GetTextContainer(TextContainerIndex);
if(Graphics()->IsTextBufferingEnabled())
{
if(TextContainer.m_StringInfo.m_QuadBufferContainerIndex != -1)
Graphics()->DeleteBufferContainer(TextContainer.m_StringInfo.m_QuadBufferContainerIndex, true);
}
if(TextContainer.m_StringInfo.m_SelectionQuadContainerIndex != -1)
Graphics()->DeleteQuadContainer(TextContainer.m_StringInfo.m_SelectionQuadContainerIndex);
FreeTextContainer(TextContainerIndex);
}
void UploadTextContainer(int TextContainerIndex) override
{
if(Graphics()->IsTextBufferingEnabled())
{
STextContainer &TextContainer = GetTextContainer(TextContainerIndex);
size_t DataSize = TextContainer.m_StringInfo.m_vCharacterQuads.size() * sizeof(STextCharQuad);
void *pUploadData = TextContainer.m_StringInfo.m_vCharacterQuads.data();
TextContainer.m_StringInfo.m_QuadBufferObjectIndex = Graphics()->CreateBufferObject(DataSize, pUploadData, TextContainer.m_SingleTimeUse ? IGraphics::EBufferObjectCreateFlags::BUFFER_OBJECT_CREATE_FLAGS_ONE_TIME_USE_BIT : 0);
m_DefaultTextContainerInfo.m_VertBufferBindingIndex = TextContainer.m_StringInfo.m_QuadBufferObjectIndex;
TextContainer.m_StringInfo.m_QuadBufferContainerIndex = Graphics()->CreateBufferContainer(&m_DefaultTextContainerInfo);
Graphics()->IndicesNumRequiredNotify(TextContainer.m_StringInfo.m_QuadNum * 6);
}
}
void RenderTextContainer(int TextContainerIndex, STextRenderColor *pTextColor, STextRenderColor *pTextOutlineColor) override
{
STextContainer &TextContainer = GetTextContainer(TextContainerIndex);
CFont *pFont = TextContainer.m_pFont;
if(TextContainer.m_StringInfo.m_SelectionQuadContainerIndex != -1)
{
if(TextContainer.m_HasSelection)
{
Graphics()->TextureClear();
Graphics()->SetColor(m_SelectionColor);
Graphics()->RenderQuadContainerEx(TextContainer.m_StringInfo.m_SelectionQuadContainerIndex, TextContainer.m_HasCursor ? 2 : 0, -1, 0, 0);
Graphics()->SetColor(1.0f, 1.0f, 1.0f, 1.0f);
}
}
if(TextContainer.m_StringInfo.m_QuadNum > 0)
{
if(Graphics()->IsTextBufferingEnabled())
{
Graphics()->TextureClear();
// render buffered text
Graphics()->RenderText(TextContainer.m_StringInfo.m_QuadBufferContainerIndex, TextContainer.m_StringInfo.m_QuadNum, pFont->m_CurTextureDimensions[0], pFont->m_aTextures[0].Id(), pFont->m_aTextures[1].Id(), (float *)pTextColor, (float *)pTextOutlineColor);
}
else
{
// render tiles
float UVScale = 1.0f / pFont->m_CurTextureDimensions[0];
Graphics()->FlushVertices();
Graphics()->TextureSet(pFont->m_aTextures[1]);
Graphics()->QuadsBegin();
for(size_t i = 0; i < TextContainer.m_StringInfo.m_QuadNum; ++i)
{
STextCharQuad &TextCharQuad = TextContainer.m_StringInfo.m_vCharacterQuads[i];
Graphics()->SetColor(TextCharQuad.m_Vertices[0].m_Color.m_R / 255.f * pTextOutlineColor->m_R, TextCharQuad.m_Vertices[0].m_Color.m_G / 255.f * pTextOutlineColor->m_G, TextCharQuad.m_Vertices[0].m_Color.m_B / 255.f * pTextOutlineColor->m_B, TextCharQuad.m_Vertices[0].m_Color.m_A / 255.f * pTextOutlineColor->m_A);
Graphics()->QuadsSetSubset(TextCharQuad.m_Vertices[0].m_U * UVScale, TextCharQuad.m_Vertices[0].m_V * UVScale, TextCharQuad.m_Vertices[2].m_U * UVScale, TextCharQuad.m_Vertices[2].m_V * UVScale);
IGraphics::CQuadItem QuadItem(TextCharQuad.m_Vertices[0].m_X, TextCharQuad.m_Vertices[0].m_Y, TextCharQuad.m_Vertices[1].m_X - TextCharQuad.m_Vertices[0].m_X, TextCharQuad.m_Vertices[2].m_Y - TextCharQuad.m_Vertices[0].m_Y);
Graphics()->QuadsDrawTL(&QuadItem, 1);
}
if(pTextColor->m_A != 0)
{
Graphics()->QuadsEndKeepVertices();
Graphics()->TextureSet(pFont->m_aTextures[0]);
for(size_t i = 0; i < TextContainer.m_StringInfo.m_QuadNum; ++i)
{
STextCharQuad &TextCharQuad = TextContainer.m_StringInfo.m_vCharacterQuads[i];
unsigned char CR = (unsigned char)((float)(TextCharQuad.m_Vertices[0].m_Color.m_R) * pTextColor->m_R);
unsigned char CG = (unsigned char)((float)(TextCharQuad.m_Vertices[0].m_Color.m_G) * pTextColor->m_G);
unsigned char CB = (unsigned char)((float)(TextCharQuad.m_Vertices[0].m_Color.m_B) * pTextColor->m_B);
unsigned char CA = (unsigned char)((float)(TextCharQuad.m_Vertices[0].m_Color.m_A) * pTextColor->m_A);
Graphics()->ChangeColorOfQuadVertices((int)i, CR, CG, CB, CA);
}
// render non outlined
Graphics()->QuadsDrawCurrentVertices(false);
}
else
Graphics()->QuadsEnd();
// reset
Graphics()->SetColor(1.f, 1.f, 1.f, 1.f);
}
}
if(TextContainer.m_StringInfo.m_SelectionQuadContainerIndex != -1)
{
if(TextContainer.m_HasCursor)
{
auto CurTime = time_get_nanoseconds();
Graphics()->TextureClear();
if((CurTime - m_CursorRenderTime) > 500ms)
{
Graphics()->SetColor(*pTextOutlineColor);
Graphics()->RenderQuadContainerEx(TextContainer.m_StringInfo.m_SelectionQuadContainerIndex, 0, 1, 0, 0);
Graphics()->SetColor(*pTextColor);
Graphics()->RenderQuadContainerEx(TextContainer.m_StringInfo.m_SelectionQuadContainerIndex, 1, 1, 0, 0);
}
if((CurTime - m_CursorRenderTime) > 1s)
m_CursorRenderTime = time_get_nanoseconds();
Graphics()->SetColor(1.0f, 1.0f, 1.0f, 1.0f);
}
}
}
void RenderTextContainer(int TextContainerIndex, STextRenderColor *pTextColor, STextRenderColor *pTextOutlineColor, float X, float Y) override
{
STextContainer &TextContainer = GetTextContainer(TextContainerIndex);
// remap the current screen, after render revert the change again
float ScreenX0, ScreenY0, ScreenX1, ScreenY1;
Graphics()->GetScreen(&ScreenX0, &ScreenY0, &ScreenX1, &ScreenY1);
if((TextContainer.m_RenderFlags & TEXT_RENDER_FLAG_NO_PIXEL_ALIGMENT) == 0)
{
float FakeToScreenX = (Graphics()->ScreenWidth() / (ScreenX1 - ScreenX0));
float FakeToScreenY = (Graphics()->ScreenHeight() / (ScreenY1 - ScreenY0));
int ActualX = (int)(((TextContainer.m_X + X) * FakeToScreenX) + 0.5f);
int ActualY = (int)(((TextContainer.m_Y + Y) * FakeToScreenY) + 0.5f);
float AlignedX = ActualX / FakeToScreenX;
float AlignedY = ActualY / FakeToScreenY;
X = AlignedX - TextContainer.m_AlignedStartX;
Y = AlignedY - TextContainer.m_AlignedStartY;
}
Graphics()->MapScreen(ScreenX0 - X, ScreenY0 - Y, ScreenX1 - X, ScreenY1 - Y);
RenderTextContainer(TextContainerIndex, pTextColor, pTextOutlineColor);
Graphics()->MapScreen(ScreenX0, ScreenY0, ScreenX1, ScreenY1);
}
void UploadEntityLayerText(void *pTexBuff, int ImageColorChannelCount, int TexWidth, int TexHeight, int TexSubWidth, int TexSubHeight, const char *pText, int Length, float x, float y, int FontSize) override
{
if(FontSize < 1)
return;
const char *pCurrent = (char *)pText;
const char *pEnd = pCurrent + Length;
CFont *pFont = m_pDefaultFont;
FT_Bitmap *pBitmap;
int WidthLastChars = 0;
while(pCurrent < pEnd)
{
const char *pTmp = pCurrent;
int NextCharacter = str_utf8_decode(&pTmp);
if(NextCharacter)
{
unsigned int px, py;
FT_Set_Pixel_Sizes(pFont->m_FtFace, 0, FontSize);
if(FT_Load_Char(pFont->m_FtFace, NextCharacter, FT_LOAD_RENDER | FT_LOAD_NO_BITMAP))
{
dbg_msg("textrender", "error loading glyph %d", NextCharacter);
pCurrent = pTmp;
continue;
}
pBitmap = &pFont->m_FtFace->glyph->bitmap;
int SlotW = pBitmap->width;
int SlotH = pBitmap->rows;
int SlotSize = SlotW * SlotH;
// prepare glyph data
mem_zero(ms_aGlyphData, SlotSize);
if(pBitmap->pixel_mode == FT_PIXEL_MODE_GRAY)
{
for(py = 0; py < (unsigned)SlotH; py++)
for(px = 0; px < (unsigned)SlotW; px++)
{
ms_aGlyphData[(py)*SlotW + px] = pBitmap->buffer[py * pBitmap->width + px];
}
}
uint8_t *pImageBuff = (uint8_t *)pTexBuff;
for(int OffY = 0; OffY < SlotH; ++OffY)
{
for(int OffX = 0; OffX < SlotW; ++OffX)
{
int ImgOffX = clamp(x + OffX + WidthLastChars, x, (x + TexSubWidth) - 1);
int ImgOffY = clamp(y + OffY, y, (y + TexSubHeight) - 1);
size_t ImageOffset = ImgOffY * (TexWidth * ImageColorChannelCount) + ImgOffX * ImageColorChannelCount;
size_t GlyphOffset = (OffY)*SlotW + OffX;
for(size_t i = 0; i < (size_t)ImageColorChannelCount; ++i)
{
if(i != (size_t)ImageColorChannelCount - 1)
{
*(pImageBuff + ImageOffset + i) = 255;
}
else
{
*(pImageBuff + ImageOffset + i) = *(ms_aGlyphData + GlyphOffset);
}
}
}
}
WidthLastChars += (SlotW + 1);
}
pCurrent = pTmp;
}
}
int AdjustFontSize(const char *pText, int TextLength, int MaxSize, int MaxWidth) override
{
int WidthOfText = CalculateTextWidth(pText, TextLength, 0, 100);
int FontSize = 100.f / ((float)WidthOfText / (float)MaxWidth);
if(MaxSize > 0 && FontSize > MaxSize)
FontSize = MaxSize;
return FontSize;
}
float GetGlyphOffsetX(int FontSize, char TextCharacter) override
{
CFont *pFont = m_pDefaultFont;
FT_Set_Pixel_Sizes(pFont->m_FtFace, 0, FontSize);
const char *pTmp = &TextCharacter;
int NextCharacter = str_utf8_decode(&pTmp);
if(NextCharacter)
{
FT_Int32 FTFlags = 0;
#if FREETYPE_MAJOR >= 2 && FREETYPE_MINOR >= 7 && (FREETYPE_MINOR > 7 || FREETYPE_PATCH >= 1)
FTFlags = FT_LOAD_BITMAP_METRICS_ONLY | FT_LOAD_NO_BITMAP;
#else
FTFlags = FT_LOAD_RENDER | FT_LOAD_NO_BITMAP;
#endif
if(FT_Load_Char(pFont->m_FtFace, NextCharacter, FTFlags))
{
dbg_msg("textrender", "error loading glyph %d in GetGlyphOffsetX", NextCharacter);
return -1;
}
return (float)(pFont->m_FtFace->glyph->metrics.horiBearingX >> 6);
}
return 0;
}
int CalculateTextWidth(const char *pText, int TextLength, int FontWidth, int FontHeight) override
{
CFont *pFont = m_pDefaultFont;
const char *pCurrent = (char *)pText;
const char *pEnd = pCurrent + TextLength;
int WidthOfText = 0;
FT_Set_Pixel_Sizes(pFont->m_FtFace, FontWidth, FontHeight);
while(pCurrent < pEnd)
{
const char *pTmp = pCurrent;
int NextCharacter = str_utf8_decode(&pTmp);
if(NextCharacter)
{
FT_Int32 FTFlags = 0;
#if FREETYPE_MAJOR >= 2 && FREETYPE_MINOR >= 7 && (FREETYPE_MINOR > 7 || FREETYPE_PATCH >= 1)
FTFlags = FT_LOAD_BITMAP_METRICS_ONLY | FT_LOAD_NO_BITMAP;
#else
FTFlags = FT_LOAD_RENDER | FT_LOAD_NO_BITMAP;
#endif
if(FT_Load_Char(pFont->m_FtFace, NextCharacter, FTFlags))
{
dbg_msg("textrender", "error loading glyph %d in CalculateTextWidth", NextCharacter);
pCurrent = pTmp;
continue;
}
WidthOfText += (pFont->m_FtFace->glyph->metrics.width >> 6) + 1;
}
pCurrent = pTmp;
}
return WidthOfText;
}
bool SelectionToUTF8OffSets(const char *pText, int SelStart, int SelEnd, int &OffUTF8Start, int &OffUTF8End) override
{
const char *pIt = pText;
OffUTF8Start = -1;
OffUTF8End = -1;
int CharCount = 0;
while(*pIt)
{
const char *pTmp = pIt;
int Character = str_utf8_decode(&pTmp);
if(Character == -1)
return false;
if(CharCount == SelStart)
OffUTF8Start = (int)((std::intptr_t)(pIt - pText));
if(CharCount == SelEnd)
OffUTF8End = (int)((std::intptr_t)(pIt - pText));
pIt = pTmp;
++CharCount;
}
if(CharCount == SelStart)
OffUTF8Start = (int)((std::intptr_t)(pIt - pText));
if(CharCount == SelEnd)
OffUTF8End = (int)((std::intptr_t)(pIt - pText));
return OffUTF8Start != -1 && OffUTF8End != -1;
}
bool UTF8OffToDecodedOff(const char *pText, int UTF8Off, int &DecodedOff) override
{
const char *pIt = pText;
DecodedOff = -1;
int CharCount = 0;
while(*pIt)
{
if((int)(intptr_t)(pIt - pText) == UTF8Off)
{
DecodedOff = CharCount;
return true;
}
const char *pTmp = pIt;
int Character = str_utf8_decode(&pTmp);
if(Character == -1)
return false;
pIt = pTmp;
++CharCount;
}
if((int)(std::intptr_t)(pIt - pText) == UTF8Off)
{
DecodedOff = CharCount;
return true;
}
return false;
}
bool DecodedOffToUTF8Off(const char *pText, int DecodedOff, int &UTF8Off) override
{
const char *pIt = pText;
UTF8Off = -1;
int CharCount = 0;
while(*pIt)
{
const char *pTmp = pIt;
int Character = str_utf8_decode(&pTmp);
if(Character == -1)
return false;
if(CharCount == DecodedOff)
{
UTF8Off = (int)((std::intptr_t)(pIt - pText));
return true;
}
pIt = pTmp;
++CharCount;
}
if(CharCount == DecodedOff)
UTF8Off = (int)((std::intptr_t)(pIt - pText));
return UTF8Off != -1;
}
void OnWindowResize() override
{
bool HasNonEmptyTextContainer = false;
for(auto *pTextContainer : m_vpTextContainers)
{
if(pTextContainer->m_StringInfo.m_QuadBufferContainerIndex != -1)
{
dbg_msg("textrender", "Found non empty text container with index %d with %d quads", pTextContainer->m_StringInfo.m_QuadBufferContainerIndex, (int)pTextContainer->m_StringInfo.m_QuadNum);
HasNonEmptyTextContainer = true;
}
}
dbg_assert(!HasNonEmptyTextContainer, "text container was not empty");
for(auto &pFont : m_vpFonts)
{
// reset the skylines
for(int j = 0; j < 2; ++j)
{
for(int &k : pFont->m_TextureSkyline[j].m_vCurHeightOfPixelColumn)
k = 0;
mem_zero(pFont->m_TextureData[j], (size_t)pFont->m_CurTextureDimensions[j] * pFont->m_CurTextureDimensions[j] * sizeof(unsigned char));
Graphics()->UpdateTextTexture(pFont->m_aTextures[j], 0, 0, pFont->m_CurTextureDimensions[j], pFont->m_CurTextureDimensions[j], pFont->m_TextureData[j]);
}
pFont->InitFontSizes();
}
}
};
IEngineTextRender *CreateEngineTextRender() { return new CTextRender; }
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