mirror of
https://github.com/beefytech/Beef.git
synced 2025-06-10 20:42:21 +02:00
Initial checkin
This commit is contained in:
Brian Fiete
parent
c74712dad9
commit
078564ac9e
3242 changed files with 1616395 additions and 0 deletions
362
BeefySysLib/gfx/FTFont.cpp
Normal file
362
BeefySysLib/gfx/FTFont.cpp
Normal file
|
|
@ -0,0 +1,362 @@
|
|||
#include "FTFont.h"
|
||||
#include "gfx/Texture.h"
|
||||
#include "gfx/RenderDevice.h"
|
||||
#include "img/ImageData.h"
|
||||
#include "BFApp.h"
|
||||
|
||||
#include "freetype/ftsizes.h"
|
||||
|
||||
#include "util/AllocDebug.h"
|
||||
|
||||
USING_NS_BF;
|
||||
|
||||
const int FT_PAGE_WIDTH = 1024;
|
||||
const int FT_PAGE_HEIGHT = 1024;
|
||||
|
||||
//const int FT_PAGE_WIDTH = 128;
|
||||
//const int FT_PAGE_HEIGHT = 128;
|
||||
|
||||
static FT_Library gFTLibrary = NULL;
|
||||
static FTFontManager gFTFontManager;
|
||||
|
||||
FTFont::FTFont()
|
||||
{
|
||||
mFace = NULL;
|
||||
mFaceSize = NULL;
|
||||
mHeight = 0;
|
||||
mAscent = 0;
|
||||
mDescent = 0;
|
||||
mMaxAdvance = 0;
|
||||
}
|
||||
|
||||
FTFont::~FTFont()
|
||||
{
|
||||
Dispose(false);
|
||||
}
|
||||
|
||||
void FTFont::Dispose(bool cacheRetain)
|
||||
{
|
||||
if (mFaceSize != NULL)
|
||||
{
|
||||
BF_ASSERT((mFaceSize->mRefCount > 0) && (mFaceSize->mRefCount < 1000000));
|
||||
mFaceSize->mRefCount--;
|
||||
|
||||
if (mFaceSize->mRefCount == 0)
|
||||
{
|
||||
mFace->mFaceSizes.Remove(mFaceSize->mPointSize);
|
||||
delete mFaceSize;
|
||||
|
||||
if (!cacheRetain)
|
||||
{
|
||||
if (mFace->mFaceSizes.IsEmpty())
|
||||
{
|
||||
bool removed = gFTFontManager.mFaces.Remove(mFace->mFileName);
|
||||
BF_ASSERT(removed);
|
||||
delete mFace;
|
||||
}
|
||||
}
|
||||
}
|
||||
mFaceSize = NULL;
|
||||
}
|
||||
}
|
||||
|
||||
FTFontManager::FaceSize::~FaceSize()
|
||||
{
|
||||
if (mFTSize != 0)
|
||||
FT_Done_Size(mFTSize);
|
||||
}
|
||||
|
||||
FTFontManager::Face::~Face()
|
||||
{
|
||||
if (mFTFace != 0)
|
||||
FT_Done_Face(mFTFace);
|
||||
}
|
||||
|
||||
FTFontManager::FTFontManager()
|
||||
{
|
||||
for (int i = 0; i < 256; i++)
|
||||
{
|
||||
uint8 whiteVal = (uint8)(pow(i / 255.0f, 0.75) * 255.0f);
|
||||
uint8 blackVal = (uint8)(pow(i / 255.0f, 0.9) * 255.0f);
|
||||
|
||||
mWhiteTab[i] = whiteVal;
|
||||
mBlackTab[i] = blackVal;
|
||||
}
|
||||
}
|
||||
|
||||
FTFontManager::~FTFontManager()
|
||||
{
|
||||
for (auto page : mPages)
|
||||
delete page;
|
||||
mPages.Clear();
|
||||
for (auto faceKV : mFaces)
|
||||
delete faceKV.mValue;
|
||||
mFaces.Clear();
|
||||
}
|
||||
|
||||
void FTFontManager::DoClearCache()
|
||||
{
|
||||
for (auto page : mPages)
|
||||
delete page;
|
||||
mPages.Clear();
|
||||
|
||||
for (auto itr = mFaces.begin(); itr != mFaces.end(); )
|
||||
{
|
||||
auto face = itr->mValue;
|
||||
if (face->mFaceSizes.IsEmpty())
|
||||
{
|
||||
delete face;
|
||||
itr = mFaces.Remove(itr);
|
||||
}
|
||||
else
|
||||
++itr;
|
||||
}
|
||||
}
|
||||
|
||||
void FTFontManager::ClearCache()
|
||||
{
|
||||
gFTFontManager.DoClearCache();
|
||||
}
|
||||
|
||||
FTFontManager::Page::~Page()
|
||||
{
|
||||
//delete mTexture;
|
||||
}
|
||||
|
||||
/*FTFontManager::Glyph::~Glyph()
|
||||
{
|
||||
//delete mTextureSegment;
|
||||
}*/
|
||||
|
||||
bool FTFont::Load(const StringImpl& fileName, float pointSize)
|
||||
{
|
||||
if (gFTLibrary == NULL)
|
||||
FT_Init_FreeType(&gFTLibrary);
|
||||
|
||||
FTFontManager::Face* face = NULL;
|
||||
|
||||
FTFontManager::Face** facePtr = NULL;
|
||||
if (gFTFontManager.mFaces.TryAdd(fileName, NULL, &facePtr))
|
||||
{
|
||||
face = new FTFontManager::Face();
|
||||
*facePtr = face;
|
||||
|
||||
face->mFileName = fileName;
|
||||
FT_Face ftFace;
|
||||
auto error = FT_New_Face(gFTLibrary, fileName.c_str(), 0, &ftFace);
|
||||
if (error != FT_Err_Ok)
|
||||
return false;
|
||||
face->mFTFace = ftFace;
|
||||
}
|
||||
else
|
||||
{
|
||||
face = *facePtr;
|
||||
}
|
||||
mFace = face;
|
||||
|
||||
|
||||
FTFontManager::FaceSize** faceSizePtr = NULL;
|
||||
if (face->mFaceSizes.TryAdd(pointSize, NULL, &faceSizePtr))
|
||||
{
|
||||
//OutputDebugStrF("Created face %s %f\n", fileName.c_str(), pointSize);
|
||||
|
||||
mFaceSize = new FTFontManager::FaceSize();
|
||||
*faceSizePtr = mFaceSize;
|
||||
|
||||
FT_Size ftSize;
|
||||
FT_New_Size(mFace->mFTFace, &ftSize);
|
||||
FT_Activate_Size(ftSize);
|
||||
auto error = FT_Set_Char_Size(mFace->mFTFace, 0, (int)(pointSize * 64), 72, 72);
|
||||
|
||||
mFaceSize->mFace = mFace;
|
||||
mFaceSize->mFTSize = ftSize;
|
||||
mFaceSize->mPointSize = pointSize;
|
||||
}
|
||||
else
|
||||
{
|
||||
mFaceSize = *faceSizePtr;
|
||||
}
|
||||
mFaceSize->mRefCount++;
|
||||
|
||||
mHeight = mFaceSize->mFTSize->metrics.height / 64;
|
||||
mAscent = mFaceSize->mFTSize->metrics.ascender / 64;
|
||||
mDescent = mFaceSize->mFTSize->metrics.descender / 64;
|
||||
mMaxAdvance = mFaceSize->mFTSize->metrics.max_advance / 64;
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
TextureSegment* BF_CALLTYPE Gfx_CreateTextureSegment(TextureSegment* textureSegment, int srcX, int srcY, int srcWidth, int srcHeight);
|
||||
|
||||
FTFontManager::Glyph* FTFont::AllocGlyph(int charCode, bool allowDefault)
|
||||
{
|
||||
FT_Activate_Size(mFaceSize->mFTSize);
|
||||
|
||||
int glyph_index = FT_Get_Char_Index(mFace->mFTFace, charCode);
|
||||
if ((glyph_index == 0) && (!allowDefault))
|
||||
return NULL;
|
||||
|
||||
auto error = FT_Load_Glyph(mFace->mFTFace, glyph_index, FT_LOAD_NO_BITMAP);
|
||||
if (error != FT_Err_Ok)
|
||||
return NULL;
|
||||
|
||||
error = FT_Render_Glyph(mFace->mFTFace->glyph, FT_RENDER_MODE_NORMAL);
|
||||
if (error != FT_Err_Ok)
|
||||
return NULL;
|
||||
|
||||
auto& bitmap = mFace->mFTFace->glyph->bitmap;
|
||||
|
||||
if ((bitmap.rows > FT_PAGE_HEIGHT) || (bitmap.width > FT_PAGE_WIDTH))
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
FTFontManager::Page* page = NULL;
|
||||
|
||||
if (!gFTFontManager.mPages.empty())
|
||||
{
|
||||
page = gFTFontManager.mPages.back();
|
||||
if (page->mCurX + (int)bitmap.width > page->mTexture->mWidth)
|
||||
{
|
||||
// Move down to next row
|
||||
page->mCurX = 0;
|
||||
page->mCurY += page->mMaxRowHeight;
|
||||
page->mMaxRowHeight = 0;
|
||||
}
|
||||
|
||||
if (page->mCurY + (int)bitmap.rows > page->mTexture->mHeight)
|
||||
{
|
||||
// Doesn't fit
|
||||
page = NULL;
|
||||
}
|
||||
}
|
||||
|
||||
if (page == NULL)
|
||||
{
|
||||
page = new FTFontManager::Page();
|
||||
gFTFontManager.mPages.push_back(page);
|
||||
}
|
||||
|
||||
//auto glyph = new FTFontManager::Glyph();
|
||||
|
||||
static FTFontManager::Glyph staticGlyph;
|
||||
auto glyph = &staticGlyph;
|
||||
|
||||
auto ftFace = mFace->mFTFace;
|
||||
|
||||
glyph->mXAdvance = ftFace->glyph->advance.x / 64;
|
||||
glyph->mXOffset = ftFace->glyph->bitmap_left;
|
||||
glyph->mYOffset = ftFace->size->metrics.ascender / 64 - ftFace->glyph->bitmap_top;
|
||||
glyph->mPage = page;
|
||||
glyph->mX = page->mCurX;
|
||||
glyph->mY = page->mCurY;
|
||||
glyph->mWidth = bitmap.width;
|
||||
glyph->mHeight = bitmap.rows;
|
||||
|
||||
if (page->mTexture == NULL)
|
||||
{
|
||||
ImageData img;
|
||||
img.CreateNew(FT_PAGE_WIDTH, FT_PAGE_HEIGHT);
|
||||
for (int i = 0; i < FT_PAGE_HEIGHT * FT_PAGE_WIDTH; i++)
|
||||
{
|
||||
if (i % 3 == 0)
|
||||
img.mBits[i] = 0xFFFF0000;
|
||||
else if (i % 3 == 1)
|
||||
img.mBits[i] = 0xFF00FF00;
|
||||
else
|
||||
img.mBits[i] = 0xFF0000FF;
|
||||
}
|
||||
page->mTexture = gBFApp->mRenderDevice->LoadTexture(&img, TextureFlag_NoPremult);
|
||||
page->mTexture->mRefCount = 0;
|
||||
}
|
||||
|
||||
if (bitmap.width > 0)
|
||||
{
|
||||
ImageData img;
|
||||
img.CreateNew(bitmap.width, bitmap.rows);
|
||||
for (int y = 0; y < (int)bitmap.rows; y++)
|
||||
{
|
||||
for (int x = 0; x < (int)bitmap.width; x++)
|
||||
{
|
||||
uint8 val = bitmap.buffer[y * bitmap.pitch + x];
|
||||
|
||||
uint8 whiteVal = gFTFontManager.mWhiteTab[val];
|
||||
uint8 blackVal = gFTFontManager.mBlackTab[val];
|
||||
|
||||
img.mBits[y * img.mWidth + x] = ((int32)whiteVal << 24) |
|
||||
((int32)blackVal) | ((int32)0xFF << 8) | ((int32)0xFF << 16);
|
||||
}
|
||||
}
|
||||
page->mTexture->Blt(&img, page->mCurX, page->mCurY);
|
||||
}
|
||||
|
||||
page->mCurX += bitmap.width;
|
||||
page->mMaxRowHeight = std::max(page->mMaxRowHeight, (int)bitmap.rows);
|
||||
|
||||
auto texture = page->mTexture;
|
||||
texture->AddRef();
|
||||
|
||||
TextureSegment* textureSegment = new TextureSegment();
|
||||
textureSegment->mTexture = texture;
|
||||
textureSegment->mU1 = (glyph->mX / (float)texture->mWidth);
|
||||
textureSegment->mV1 = (glyph->mY / (float)texture->mHeight);
|
||||
textureSegment->mU2 = ((glyph->mX + glyph->mWidth) / (float)texture->mWidth);
|
||||
textureSegment->mV2 = ((glyph->mY + glyph->mHeight) / (float)texture->mHeight);
|
||||
textureSegment->mScaleX = (float)abs(glyph->mWidth);
|
||||
textureSegment->mScaleY = (float)abs(glyph->mHeight);
|
||||
|
||||
glyph->mTextureSegment = textureSegment;
|
||||
return glyph;
|
||||
}
|
||||
|
||||
int FTFont::GetKerning(int charA, int charB)
|
||||
{
|
||||
FT_Activate_Size(mFaceSize->mFTSize);
|
||||
FT_Vector kerning;
|
||||
int glyph_indexA = FT_Get_Char_Index(mFace->mFTFace, charA);
|
||||
int glyph_indexB = FT_Get_Char_Index(mFace->mFTFace, charB);
|
||||
FT_Get_Kerning(mFace->mFTFace, glyph_indexA, glyph_indexB, FT_KERNING_DEFAULT, &kerning);
|
||||
return kerning.x / 64;
|
||||
}
|
||||
|
||||
void FTFont::Release(bool cacheRetain)
|
||||
{
|
||||
Dispose(cacheRetain);
|
||||
delete this;
|
||||
}
|
||||
|
||||
|
||||
//////////////////////////////////////////////////////////////////////////
|
||||
|
||||
BF_EXPORT FTFont* BF_CALLTYPE FTFont_Load(const char* fileName, float pointSize)
|
||||
{
|
||||
auto ftFont = new FTFont();
|
||||
if (!ftFont->Load(fileName, pointSize))
|
||||
{
|
||||
delete ftFont;
|
||||
return NULL;
|
||||
}
|
||||
|
||||
return ftFont;
|
||||
}
|
||||
|
||||
BF_EXPORT void BF_CALLTYPE FTFont_ClearCache()
|
||||
{
|
||||
FTFontManager::ClearCache();
|
||||
}
|
||||
|
||||
BF_EXPORT void BF_CALLTYPE FTFont_Delete(FTFont* ftFont, bool cacheRetain)
|
||||
{
|
||||
ftFont->Release(cacheRetain);
|
||||
}
|
||||
|
||||
BF_EXPORT FTFontManager::Glyph* BF_CALLTYPE FTFont_AllocGlyph(FTFont* ftFont, int charCode, bool allowDefault)
|
||||
{
|
||||
return ftFont->AllocGlyph(charCode, allowDefault);
|
||||
}
|
||||
|
||||
BF_EXPORT int BF_CALLTYPE FTFont_GetKerning(FTFont* ftFont, int charCodeA, int charCodeB)
|
||||
{
|
||||
auto kerning = ftFont->GetKerning(charCodeA, charCodeB);
|
||||
return kerning;
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue