123
This commit is contained in:
romkazvo
486
CryFont/FontTexture.cpp
Normal file
486
CryFont/FontTexture.cpp
Normal file
@@ -0,0 +1,486 @@
|
||||
//-------------------------------------------------------------------------------------------------
|
||||
// Author: M<>rcio Martins
|
||||
//
|
||||
// Purpose:
|
||||
// - Create and update a texture with the most recently used glyphs
|
||||
//
|
||||
// History:
|
||||
// - [6/6/2003] created the file
|
||||
//
|
||||
//-------------------------------------------------------------------------------------------------
|
||||
#include "StdAfx.h"
|
||||
#include "FontTexture.h"
|
||||
|
||||
|
||||
//-------------------------------------------------------------------------------------------------
|
||||
CFontTexture::CFontTexture()
|
||||
: m_dwUsage(1), m_iWidth(0), m_iHeight(0), m_iCellWidth(0), m_iCellHeight(0), m_fTextureCellWidth(0),
|
||||
m_fTextureCellHeight(0), m_iWidthCellCount(0), m_iHeightCellCount(0), m_nTextureSlotCount(0), m_pBuffer(0),
|
||||
m_iSmoothMethod(FONT_SMOOTH_NONE), m_iSmoothAmount(FONT_SMOOTH_AMOUNT_NONE)
|
||||
{
|
||||
m_pSlotList.clear();
|
||||
m_pSlotTable.clear();
|
||||
}
|
||||
|
||||
//-------------------------------------------------------------------------------------------------
|
||||
CFontTexture::~CFontTexture()
|
||||
{
|
||||
Release();
|
||||
}
|
||||
|
||||
//-------------------------------------------------------------------------------------------------
|
||||
int CFontTexture::CreateFromFile(const string &szFileName, int iWidth, int iHeight, int iSmoothMethod, int iSmoothAmount, float fSizeRatio, int iWidthCellCount, int iHeightCellCount)
|
||||
{
|
||||
if (!m_pGlyphCache.LoadFontFromFile(szFileName))
|
||||
{
|
||||
Release();
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (!Create(iWidth, iHeight, iSmoothMethod, iSmoothAmount, fSizeRatio, iWidthCellCount, iHeightCellCount))
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
//-------------------------------------------------------------------------------------------------
|
||||
int CFontTexture::CreateFromMemory(unsigned char *pFileData, int iDataSize, int iWidth, int iHeight, int iSmoothMethod, int iSmoothAmount, float fSizeRatio, int iWidthCellCount, int iHeightCellCount)
|
||||
{
|
||||
if (!m_pGlyphCache.LoadFontFromMemory(pFileData, iDataSize))
|
||||
{
|
||||
Release();
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (!Create(iWidth, iHeight, iSmoothMethod, iSmoothAmount, fSizeRatio, iWidthCellCount, iHeightCellCount))
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
//-------------------------------------------------------------------------------------------------
|
||||
int CFontTexture::Create(int iWidth, int iHeight, int iSmoothMethod, int iSmoothAmount, float fSizeRatio, int iWidthCellCount, int iHeightCellCount)
|
||||
{
|
||||
#ifdef FONT_USE_32BIT_TEXTURE
|
||||
m_pBuffer = new unsigned int[iWidth * iHeight];
|
||||
#else
|
||||
m_pBuffer = new unsigned char[iWidth * iHeight];
|
||||
#endif
|
||||
|
||||
if (!m_pBuffer)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
#ifdef FONT_USE_32BIT_TEXTURE
|
||||
memset(m_pBuffer, 0, iWidth * iHeight * 4);
|
||||
#else
|
||||
memset(m_pBuffer, 0, iWidth * iHeight);
|
||||
#endif
|
||||
|
||||
if (!(iWidthCellCount * iHeightCellCount))
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
m_iWidth = iWidth;
|
||||
m_iHeight = iHeight;
|
||||
|
||||
m_iWidthCellCount = iWidthCellCount;
|
||||
m_iHeightCellCount = iHeightCellCount;
|
||||
m_nTextureSlotCount = m_iWidthCellCount * m_iHeightCellCount;
|
||||
|
||||
m_iSmoothMethod = iSmoothMethod;
|
||||
m_iSmoothAmount = iSmoothAmount;
|
||||
|
||||
m_iCellWidth = m_iWidth / m_iWidthCellCount;
|
||||
m_iCellHeight = m_iHeight / m_iHeightCellCount;
|
||||
|
||||
m_fTextureCellWidth = m_iCellWidth / (float)m_iWidth;
|
||||
m_fTextureCellHeight = m_iCellHeight / (float)m_iHeight;
|
||||
|
||||
if (!m_pGlyphCache.Create(FONT_GLYPH_CACHE_SIZE, m_iCellWidth, m_iCellHeight, iSmoothMethod, iSmoothAmount, fSizeRatio))
|
||||
{
|
||||
Release();
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (!CreateSlotList(m_nTextureSlotCount))
|
||||
{
|
||||
Release();
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
//-------------------------------------------------------------------------------------------------
|
||||
int CFontTexture::Release()
|
||||
{
|
||||
if (m_pBuffer)
|
||||
{
|
||||
delete[] m_pBuffer;
|
||||
}
|
||||
|
||||
m_pBuffer = 0;
|
||||
|
||||
ReleaseSlotList();
|
||||
|
||||
m_pSlotTable.clear();
|
||||
|
||||
m_pGlyphCache.Release();
|
||||
|
||||
m_iWidthCellCount = 0;
|
||||
m_iHeightCellCount = 0;
|
||||
m_nTextureSlotCount = 0;
|
||||
|
||||
m_iWidth = 0;
|
||||
m_iHeight = 0;
|
||||
|
||||
m_iCellWidth = 0;
|
||||
m_iCellHeight = 0;
|
||||
|
||||
m_iSmoothMethod = 0;
|
||||
m_iSmoothAmount = 0;
|
||||
|
||||
m_fTextureCellWidth = 0.0f;
|
||||
m_fTextureCellHeight = 0.0f;
|
||||
|
||||
m_dwUsage = 1;
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
//-------------------------------------------------------------------------------------------------
|
||||
wchar_t CFontTexture::GetSlotChar(int iSlot)
|
||||
{
|
||||
return m_pSlotList[iSlot]->cCurrentChar;
|
||||
}
|
||||
|
||||
//-------------------------------------------------------------------------------------------------
|
||||
CTextureSlot *CFontTexture::GetCharSlot(wchar_t cChar)
|
||||
{
|
||||
CTextureSlotTableItor pItor = m_pSlotTable.find(cChar);
|
||||
|
||||
if (pItor != m_pSlotTable.end())
|
||||
{
|
||||
return pItor->second;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
//-------------------------------------------------------------------------------------------------
|
||||
CTextureSlot *CFontTexture::GetLRUSlot()
|
||||
{
|
||||
unsigned int dwMinUsage = 0xffffffff;
|
||||
CTextureSlot *pLRUSlot = 0;
|
||||
CTextureSlot *pSlot;
|
||||
|
||||
CTextureSlotListItor pItor = m_pSlotList.begin();
|
||||
|
||||
while (pItor != m_pSlotList.end())
|
||||
{
|
||||
pSlot = *pItor;
|
||||
|
||||
if (pSlot->dwUsage == 0)
|
||||
{
|
||||
return pSlot;
|
||||
}
|
||||
else
|
||||
{
|
||||
if (pSlot->dwUsage < dwMinUsage)
|
||||
{
|
||||
pLRUSlot = pSlot;
|
||||
dwMinUsage = pSlot->dwUsage;
|
||||
}
|
||||
}
|
||||
|
||||
pItor++;
|
||||
}
|
||||
|
||||
return pLRUSlot;
|
||||
}
|
||||
|
||||
//-------------------------------------------------------------------------------------------------
|
||||
CTextureSlot *CFontTexture::GetMRUSlot()
|
||||
{
|
||||
unsigned int dwMaxUsage = 0;
|
||||
CTextureSlot *pMRUSlot = 0;
|
||||
CTextureSlot *pSlot;
|
||||
|
||||
CTextureSlotListItor pItor = m_pSlotList.begin();
|
||||
|
||||
while (pItor != m_pSlotList.end())
|
||||
{
|
||||
pSlot = *pItor;
|
||||
|
||||
if (pSlot->dwUsage != 0)
|
||||
{
|
||||
if (pSlot->dwUsage > dwMaxUsage)
|
||||
{
|
||||
pMRUSlot = pSlot;
|
||||
dwMaxUsage = pSlot->dwUsage;
|
||||
}
|
||||
}
|
||||
|
||||
pItor++;
|
||||
}
|
||||
|
||||
return pMRUSlot;
|
||||
}
|
||||
|
||||
//-------------------------------------------------------------------------------------------------
|
||||
int CFontTexture::PreCacheString(const wchar_t *szString, int *pUpdated)
|
||||
{
|
||||
unsigned int dwUsage = m_dwUsage++;
|
||||
int iLength = wcslen(szString);
|
||||
int iUpdated = 0;
|
||||
|
||||
for (int i = 0; i < iLength; i++)
|
||||
{
|
||||
wchar_t cChar = szString[i];
|
||||
|
||||
CTextureSlot *pSlot = GetCharSlot(cChar);
|
||||
|
||||
if (!pSlot)
|
||||
{
|
||||
pSlot = GetLRUSlot();
|
||||
|
||||
if (!pSlot)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (!UpdateSlot(pSlot->iTextureSlot, dwUsage, cChar))
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
++iUpdated;
|
||||
}
|
||||
else
|
||||
{
|
||||
pSlot->dwUsage = dwUsage;
|
||||
}
|
||||
}
|
||||
|
||||
if (pUpdated)
|
||||
{
|
||||
*pUpdated = iUpdated;
|
||||
}
|
||||
|
||||
if (iUpdated)
|
||||
{
|
||||
return 1;
|
||||
}
|
||||
|
||||
return 2;
|
||||
}
|
||||
|
||||
//-------------------------------------------------------------------------------------------------
|
||||
int CFontTexture::GetTextureCoord(wchar_t cChar, float *fU, float *fV)
|
||||
{
|
||||
CTextureSlotTableItor pItor = m_pSlotTable.find(cChar);
|
||||
|
||||
if (pItor == m_pSlotTable.end())
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (fU)
|
||||
{
|
||||
*fU = pItor->second->vTexCoord[0];
|
||||
}
|
||||
|
||||
if (fV)
|
||||
{
|
||||
*fV = pItor->second->vTexCoord[1];
|
||||
}
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
//-------------------------------------------------------------------------------------------------
|
||||
int CFontTexture::GetCharWidth(wchar_t cChar)
|
||||
{
|
||||
CTextureSlotTableItor pItor = m_pSlotTable.find(cChar);
|
||||
|
||||
if (pItor != m_pSlotTable.end())
|
||||
{
|
||||
return pItor->second->iCharWidth;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
//-------------------------------------------------------------------------------------------------
|
||||
int CFontTexture::GetCharHeight(wchar_t cChar)
|
||||
{
|
||||
CTextureSlotTableItor pItor = m_pSlotTable.find(cChar);
|
||||
|
||||
if (pItor != m_pSlotTable.end())
|
||||
{
|
||||
return pItor->second->iCharHeight;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
//-------------------------------------------------------------------------------------------------
|
||||
int CFontTexture::WriteToFile(const string &szFileName)
|
||||
{
|
||||
FILE *hFile = fopen(szFileName.c_str(), "wb");
|
||||
|
||||
if(!hFile)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
BITMAPFILEHEADER pHeader;
|
||||
BITMAPINFOHEADER pInfoHeader;
|
||||
|
||||
memset(&pHeader, 0, sizeof(BITMAPFILEHEADER));
|
||||
memset(&pInfoHeader, 0, sizeof(BITMAPINFOHEADER));
|
||||
|
||||
pHeader.bfType = 0x4D42;
|
||||
pHeader.bfSize = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER) + m_iWidth * m_iHeight * 3;
|
||||
pHeader.bfOffBits = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER);
|
||||
|
||||
pInfoHeader.biSize = sizeof(BITMAPINFOHEADER);
|
||||
pInfoHeader.biWidth = m_iWidth;
|
||||
pInfoHeader.biHeight = m_iHeight;
|
||||
pInfoHeader.biPlanes = 1;
|
||||
pInfoHeader.biBitCount = 24;
|
||||
pInfoHeader.biCompression = 0;
|
||||
pInfoHeader.biSizeImage = m_iWidth * m_iHeight * 3;
|
||||
|
||||
fwrite(&pHeader, 1, sizeof(BITMAPFILEHEADER), hFile);
|
||||
fwrite(&pInfoHeader, 1, sizeof(BITMAPINFOHEADER), hFile);
|
||||
|
||||
unsigned char cRGB[3];
|
||||
|
||||
for(int i = m_iHeight - 1; i >= 0; i--)
|
||||
{
|
||||
for(int j = 0; j < m_iWidth; j++)
|
||||
{
|
||||
#ifdef FONT_USE_32BIT_TEXTURE
|
||||
cRGB[0] = ((char *)(m_pBuffer + i * m_iWidth + j))[3];
|
||||
#else
|
||||
cRGB[0] = m_pBuffer[(i * m_iWidth) + j];
|
||||
#endif
|
||||
cRGB[1] = *cRGB;
|
||||
|
||||
cRGB[2] = *cRGB;
|
||||
|
||||
fwrite(cRGB, 1, 3, hFile);
|
||||
}
|
||||
}
|
||||
|
||||
fclose(hFile);
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
//-------------------------------------------------------------------------------------------------
|
||||
//-------------------------------------------------------------------------------------------------
|
||||
int CFontTexture::CreateSlotList(int iListSize)
|
||||
{
|
||||
int y, x;
|
||||
|
||||
for (int i = 0; i < iListSize; i++)
|
||||
{
|
||||
CTextureSlot *pTextureSlot = new CTextureSlot;
|
||||
|
||||
if (!pTextureSlot)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
pTextureSlot->iTextureSlot = i;
|
||||
pTextureSlot->Reset();
|
||||
|
||||
y = i / m_iWidthCellCount;
|
||||
x = i % m_iWidthCellCount;
|
||||
|
||||
pTextureSlot->vTexCoord[0] = (float)(x * m_fTextureCellWidth);
|
||||
pTextureSlot->vTexCoord[1] = (float)(y * m_fTextureCellHeight);
|
||||
|
||||
m_pSlotList.push_back(pTextureSlot);
|
||||
}
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
//-------------------------------------------------------------------------------------------------
|
||||
int CFontTexture::ReleaseSlotList()
|
||||
{
|
||||
CTextureSlotListItor pItor = m_pSlotList.begin();
|
||||
|
||||
while (pItor != m_pSlotList.end())
|
||||
{
|
||||
delete (*pItor);
|
||||
|
||||
pItor = m_pSlotList.erase(pItor);
|
||||
}
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
//-------------------------------------------------------------------------------------------------
|
||||
int CFontTexture::UpdateSlot(int iSlot, unsigned int dwUsage, wchar_t cChar)
|
||||
{
|
||||
CTextureSlot *pSlot = m_pSlotList[iSlot];
|
||||
|
||||
if (!pSlot)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
CTextureSlotTableItor pItor = m_pSlotTable.find(pSlot->cCurrentChar);
|
||||
|
||||
if (pItor != m_pSlotTable.end())
|
||||
{
|
||||
m_pSlotTable.erase(pItor);
|
||||
}
|
||||
|
||||
m_pSlotTable.insert(std::pair<wchar_t, CTextureSlot *>(cChar, pSlot));
|
||||
|
||||
pSlot->dwUsage = dwUsage;
|
||||
pSlot->cCurrentChar = cChar;
|
||||
|
||||
int iWidth = 0;
|
||||
int iHeight = 0;
|
||||
|
||||
// blit the char glyph into the texture
|
||||
int x = pSlot->iTextureSlot % m_iWidthCellCount;
|
||||
int y = pSlot->iTextureSlot / m_iWidthCellCount;
|
||||
|
||||
CGlyphBitmap *pGlyphBitmap;
|
||||
|
||||
if (!m_pGlyphCache.GetGlyph(&pGlyphBitmap, &iWidth, &iHeight, cChar))
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
pSlot->iCharWidth = iWidth;
|
||||
pSlot->iCharHeight = iHeight;
|
||||
|
||||
#ifdef FONT_USE_32BIT_TEXTURE
|
||||
pGlyphBitmap->BlitTo32(m_pBuffer, 0, 0, pGlyphBitmap->GetWidth(), pGlyphBitmap->GetHeight(), x * m_iCellWidth, y * m_iCellHeight, m_iWidth);
|
||||
#else
|
||||
pGlyphBitmap->BlitTo8(m_pBuffer, 0, 0, pGlyphBitmap->GetWidth(), pGlyphBitmap->GetHeight(), x * m_iCellWidth, y * m_iCellHeight, m_iWidth);
|
||||
#endif
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
//-------------------------------------------------------------------------------------------------
|
||||
Reference in New Issue
Block a user