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-rw-r--r--libs/rs/rsFont.cpp185
1 files changed, 80 insertions, 105 deletions
diff --git a/libs/rs/rsFont.cpp b/libs/rs/rsFont.cpp
index 66f455c..33b0f51 100644
--- a/libs/rs/rsFont.cpp
+++ b/libs/rs/rsFont.cpp
@@ -34,16 +34,14 @@
using namespace android;
using namespace android::renderscript;
-Font::Font(Context *rsc) : ObjectBase(rsc), mCachedGlyphs(NULL)
-{
+Font::Font(Context *rsc) : ObjectBase(rsc), mCachedGlyphs(NULL) {
mInitialized = false;
mHasKerning = false;
mFace = NULL;
}
-bool Font::init(const char *name, uint32_t fontSize, uint32_t dpi)
-{
- if(mInitialized) {
+bool Font::init(const char *name, uint32_t fontSize, uint32_t dpi) {
+ if (mInitialized) {
LOGE("Reinitialization of fonts not supported");
return false;
}
@@ -54,7 +52,7 @@ bool Font::init(const char *name, uint32_t fontSize, uint32_t dpi)
fullPath += name;
FT_Error error = FT_New_Face(mRSC->mStateFont.getLib(), fullPath.string(), 0, &mFace);
- if(error) {
+ if (error) {
LOGE("Unable to initialize font %s", fullPath.string());
return false;
}
@@ -64,7 +62,7 @@ bool Font::init(const char *name, uint32_t fontSize, uint32_t dpi)
mDpi = dpi;
error = FT_Set_Char_Size(mFace, fontSize * 64, 0, dpi, 0);
- if(error) {
+ if (error) {
LOGE("Unable to set font size on %s", fullPath.string());
return false;
}
@@ -75,15 +73,13 @@ bool Font::init(const char *name, uint32_t fontSize, uint32_t dpi)
return true;
}
-void Font::invalidateTextureCache()
-{
- for(uint32_t i = 0; i < mCachedGlyphs.size(); i ++) {
+void Font::invalidateTextureCache() {
+ for (uint32_t i = 0; i < mCachedGlyphs.size(); i ++) {
mCachedGlyphs.valueAt(i)->mIsValid = false;
}
}
-void Font::drawCachedGlyph(CachedGlyphInfo *glyph, int32_t x, int32_t y)
-{
+void Font::drawCachedGlyph(CachedGlyphInfo *glyph, int32_t x, int32_t y) {
FontState *state = &mRSC->mStateFont;
int32_t nPenX = x + glyph->mBitmapLeft;
@@ -127,7 +123,6 @@ void Font::drawCachedGlyph(CachedGlyphInfo* glyph, int32_t x, int32_t y,
bitmap[bY * bitmapW + bX] = tempCol;
}
}
-
}
void Font::measureCachedGlyph(CachedGlyphInfo *glyph, int32_t x, int32_t y, Rect *bounds) {
@@ -154,13 +149,12 @@ void Font::measureCachedGlyph(CachedGlyphInfo *glyph, int32_t x, int32_t y, Rect
void Font::renderUTF(const char *text, uint32_t len, int32_t x, int32_t y,
uint32_t start, int32_t numGlyphs,
RenderMode mode, Rect *bounds,
- uint8_t *bitmap, uint32_t bitmapW, uint32_t bitmapH)
-{
- if(!mInitialized || numGlyphs == 0 || text == NULL || len == 0) {
+ uint8_t *bitmap, uint32_t bitmapW, uint32_t bitmapH) {
+ if (!mInitialized || numGlyphs == 0 || text == NULL || len == 0) {
return;
}
- if(mode == Font::MEASURE) {
+ if (mode == Font::MEASURE) {
if (bounds == NULL) {
LOGE("No return rectangle provided to measure text");
return;
@@ -171,7 +165,7 @@ void Font::renderUTF(const char *text, uint32_t len, int32_t x, int32_t y,
int32_t penX = x, penY = y;
int32_t glyphsLeft = 1;
- if(numGlyphs > 0) {
+ if (numGlyphs > 0) {
glyphsLeft = numGlyphs;
}
@@ -183,7 +177,7 @@ void Font::renderUTF(const char *text, uint32_t len, int32_t x, int32_t y,
int32_t utfChar = utf32_at(text, len, index, &nextIndex);
// Reached the end of the string or encountered
- if(utfChar < 0) {
+ if (utfChar < 0) {
break;
}
@@ -193,8 +187,8 @@ void Font::renderUTF(const char *text, uint32_t len, int32_t x, int32_t y,
CachedGlyphInfo *cachedGlyph = getCachedUTFChar(utfChar);
// If it's still not valid, we couldn't cache it, so we shouldn't draw garbage
- if(cachedGlyph->mIsValid) {
- switch(mode) {
+ if (cachedGlyph->mIsValid) {
+ switch (mode) {
case FRAMEBUFFER:
drawCachedGlyph(cachedGlyph, penX, penY);
break;
@@ -210,7 +204,7 @@ void Font::renderUTF(const char *text, uint32_t len, int32_t x, int32_t y,
penX += (cachedGlyph->mAdvance.x >> 6);
// If we were given a specific number of glyphs, decrement
- if(numGlyphs > 0) {
+ if (numGlyphs > 0) {
glyphsLeft --;
}
}
@@ -219,21 +213,20 @@ void Font::renderUTF(const char *text, uint32_t len, int32_t x, int32_t y,
Font::CachedGlyphInfo* Font::getCachedUTFChar(int32_t utfChar) {
CachedGlyphInfo *cachedGlyph = mCachedGlyphs.valueFor((uint32_t)utfChar);
- if(cachedGlyph == NULL) {
+ if (cachedGlyph == NULL) {
cachedGlyph = cacheGlyph((uint32_t)utfChar);
}
// Is the glyph still in texture cache?
- if(!cachedGlyph->mIsValid) {
+ if (!cachedGlyph->mIsValid) {
updateGlyphCache(cachedGlyph);
}
return cachedGlyph;
}
-void Font::updateGlyphCache(CachedGlyphInfo *glyph)
-{
+void Font::updateGlyphCache(CachedGlyphInfo *glyph) {
FT_Error error = FT_Load_Glyph( mFace, glyph->mGlyphIndex, FT_LOAD_RENDER );
- if(error) {
+ if (error) {
LOGE("Couldn't load glyph.");
return;
}
@@ -252,7 +245,7 @@ void Font::updateGlyphCache(CachedGlyphInfo *glyph)
FontState *state = &mRSC->mStateFont;
glyph->mIsValid = state->cacheBitmap(bitmap, &startX, &startY);
- if(!glyph->mIsValid) {
+ if (!glyph->mIsValid) {
return;
}
@@ -273,8 +266,7 @@ void Font::updateGlyphCache(CachedGlyphInfo *glyph)
glyph->mBitmapMaxV = (float)endY / (float)cacheHeight;
}
-Font::CachedGlyphInfo *Font::cacheGlyph(uint32_t glyph)
-{
+Font::CachedGlyphInfo *Font::cacheGlyph(uint32_t glyph) {
CachedGlyphInfo *newGlyph = new CachedGlyphInfo();
mCachedGlyphs.add(glyph, newGlyph);
@@ -286,21 +278,20 @@ Font::CachedGlyphInfo *Font::cacheGlyph(uint32_t glyph)
return newGlyph;
}
-Font * Font::create(Context *rsc, const char *name, uint32_t fontSize, uint32_t dpi)
-{
+Font * Font::create(Context *rsc, const char *name, uint32_t fontSize, uint32_t dpi) {
rsc->mStateFont.checkInit();
Vector<Font*> &activeFonts = rsc->mStateFont.mActiveFonts;
- for(uint32_t i = 0; i < activeFonts.size(); i ++) {
+ for (uint32_t i = 0; i < activeFonts.size(); i ++) {
Font *ithFont = activeFonts[i];
- if(ithFont->mFontName == name && ithFont->mFontSize == fontSize && ithFont->mDpi == dpi) {
+ if (ithFont->mFontName == name && ithFont->mFontSize == fontSize && ithFont->mDpi == dpi) {
return ithFont;
}
}
Font *newFont = new Font(rsc);
bool isInitialized = newFont->init(name, fontSize, dpi);
- if(isInitialized) {
+ if (isInitialized) {
activeFonts.push(newFont);
rsc->mStateFont.precacheLatin(newFont);
return newFont;
@@ -308,12 +299,10 @@ Font * Font::create(Context *rsc, const char *name, uint32_t fontSize, uint32_t
ObjectBase::checkDelete(newFont);
return NULL;
-
}
-Font::~Font()
-{
- if(mFace) {
+Font::~Font() {
+ if (mFace) {
FT_Done_Face(mFace);
}
@@ -324,14 +313,13 @@ Font::~Font()
}
}
- for(uint32_t i = 0; i < mCachedGlyphs.size(); i ++) {
+ for (uint32_t i = 0; i < mCachedGlyphs.size(); i ++) {
CachedGlyphInfo *glyph = mCachedGlyphs.valueAt(i);
delete glyph;
}
}
-FontState::FontState()
-{
+FontState::FontState() {
mInitialized = false;
mMaxNumberOfQuads = 1024;
mCurrentQuadIndex = 0;
@@ -379,20 +367,18 @@ FontState::FontState()
setFontColor(0.1f, 0.1f, 0.1f, 1.0f);
}
-FontState::~FontState()
-{
- for(uint32_t i = 0; i < mCacheLines.size(); i ++) {
+FontState::~FontState() {
+ for (uint32_t i = 0; i < mCacheLines.size(); i ++) {
delete mCacheLines[i];
}
rsAssert(!mActiveFonts.size());
}
-FT_Library FontState::getLib()
-{
- if(!mLibrary) {
+FT_Library FontState::getLib() {
+ if (!mLibrary) {
FT_Error error = FT_Init_FreeType(&mLibrary);
- if(error) {
+ if (error) {
LOGE("Unable to initialize freetype");
return NULL;
}
@@ -401,29 +387,26 @@ FT_Library FontState::getLib()
return mLibrary;
}
-void FontState::init(Context *rsc)
-{
+void FontState::init(Context *rsc) {
mRSC = rsc;
}
-void FontState::flushAllAndInvalidate()
-{
- if(mCurrentQuadIndex != 0) {
+void FontState::flushAllAndInvalidate() {
+ if (mCurrentQuadIndex != 0) {
issueDrawCommand();
mCurrentQuadIndex = 0;
}
- for(uint32_t i = 0; i < mActiveFonts.size(); i ++) {
+ for (uint32_t i = 0; i < mActiveFonts.size(); i ++) {
mActiveFonts[i]->invalidateTextureCache();
}
- for(uint32_t i = 0; i < mCacheLines.size(); i ++) {
+ for (uint32_t i = 0; i < mCacheLines.size(); i ++) {
mCacheLines[i]->mCurrentCol = 0;
}
}
-bool FontState::cacheBitmap(FT_Bitmap *bitmap, uint32_t *retOriginX, uint32_t *retOriginY)
-{
+bool FontState::cacheBitmap(FT_Bitmap *bitmap, uint32_t *retOriginX, uint32_t *retOriginY) {
// If the glyph is too tall, don't cache it
- if((uint32_t)bitmap->rows > mCacheLines[mCacheLines.size()-1]->mMaxHeight) {
+ if ((uint32_t)bitmap->rows > mCacheLines[mCacheLines.size()-1]->mMaxHeight) {
LOGE("Font size to large to fit in cache. width, height = %i, %i", (int)bitmap->width, (int)bitmap->rows);
return false;
}
@@ -433,27 +416,27 @@ bool FontState::cacheBitmap(FT_Bitmap *bitmap, uint32_t *retOriginX, uint32_t *r
uint32_t startY = 0;
bool bitmapFit = false;
- for(uint32_t i = 0; i < mCacheLines.size(); i ++) {
+ for (uint32_t i = 0; i < mCacheLines.size(); i ++) {
bitmapFit = mCacheLines[i]->fitBitmap(bitmap, &startX, &startY);
- if(bitmapFit) {
+ if (bitmapFit) {
break;
}
}
// If the new glyph didn't fit, flush the state so far and invalidate everything
- if(!bitmapFit) {
+ if (!bitmapFit) {
flushAllAndInvalidate();
// Try to fit it again
- for(uint32_t i = 0; i < mCacheLines.size(); i ++) {
+ for (uint32_t i = 0; i < mCacheLines.size(); i ++) {
bitmapFit = mCacheLines[i]->fitBitmap(bitmap, &startX, &startY);
- if(bitmapFit) {
+ if (bitmapFit) {
break;
}
}
// if we still don't fit, something is wrong and we shouldn't draw
- if(!bitmapFit) {
+ if (!bitmapFit) {
LOGE("Bitmap doesn't fit in cache. width, height = %i, %i", (int)bitmap->width, (int)bitmap->rows);
return false;
}
@@ -471,8 +454,8 @@ bool FontState::cacheBitmap(FT_Bitmap *bitmap, uint32_t *retOriginX, uint32_t *r
uint8_t *bitmapBuffer = bitmap->buffer;
uint32_t cacheX = 0, bX = 0, cacheY = 0, bY = 0;
- for(cacheX = startX, bX = 0; cacheX < endX; cacheX ++, bX ++) {
- for(cacheY = startY, bY = 0; cacheY < endY; cacheY ++, bY ++) {
+ for (cacheX = startX, bX = 0; cacheX < endX; cacheX ++, bX ++) {
+ for (cacheY = startY, bY = 0; cacheY < endY; cacheY ++, bY ++) {
uint8_t tempCol = bitmapBuffer[bY * bitmap->width + bX];
cacheBuffer[cacheY*cacheWidth + cacheX] = tempCol;
}
@@ -484,7 +467,7 @@ bool FontState::cacheBitmap(FT_Bitmap *bitmap, uint32_t *retOriginX, uint32_t *r
mFontShaderF->bindTexture(mRSC, 0, mTextTexture.get());
// Some debug code
- /*for(uint32_t i = 0; i < mCacheLines.size(); i ++) {
+ /*for (uint32_t i = 0; i < mCacheLines.size(); i ++) {
LOGE("Cache Line: H: %u Empty Space: %f",
mCacheLines[i]->mMaxHeight,
(1.0f - (float)mCacheLines[i]->mCurrentCol/(float)mCacheLines[i]->mMaxWidth)*100.0f);
@@ -494,8 +477,7 @@ bool FontState::cacheBitmap(FT_Bitmap *bitmap, uint32_t *retOriginX, uint32_t *r
return true;
}
-void FontState::initRenderState()
-{
+void FontState::initRenderState() {
String8 shaderString("varying vec2 varTex0;\n");
shaderString.append("void main() {\n");
shaderString.append(" lowp vec4 col = UNI_Color;\n");
@@ -538,8 +520,7 @@ void FontState::initRenderState()
mFontProgramStore->setDepthMask(false);
}
-void FontState::initTextTexture()
-{
+void FontState::initTextTexture() {
const Element *alphaElem = Element::create(mRSC, RS_TYPE_UNSIGNED_8, RS_KIND_PIXEL_A, true, 1);
// We will allocate a texture to initially hold 32 character bitmaps
@@ -567,8 +548,7 @@ void FontState::initTextTexture()
}
// Avoid having to reallocate memory and render quad by quad
-void FontState::initVertexArrayBuffers()
-{
+void FontState::initVertexArrayBuffers() {
// Now lets write index data
const Element *indexElem = Element::create(mRSC, RS_TYPE_UNSIGNED_16, RS_KIND_USER, false, 1);
uint32_t numIndicies = mMaxNumberOfQuads * 6;
@@ -578,7 +558,7 @@ void FontState::initVertexArrayBuffers()
uint16_t *indexPtr = (uint16_t*)indexAlloc->getPtr();
// Four verts, two triangles , six indices per quad
- for(uint32_t i = 0; i < mMaxNumberOfQuads; i ++) {
+ for (uint32_t i = 0; i < mMaxNumberOfQuads; i ++) {
int32_t i6 = i * 6;
int32_t i4 = i * 4;
@@ -613,9 +593,8 @@ void FontState::initVertexArrayBuffers()
}
// We don't want to allocate anything unless we actually draw text
-void FontState::checkInit()
-{
- if(mInitialized) {
+void FontState::checkInit() {
+ if (mInitialized) {
return;
}
@@ -647,7 +626,7 @@ void FontState::issueDrawCommand() {
ObjectBaseRef<const ProgramStore> tmpPS(mRSC->getFragmentStore());
mRSC->setFragmentStore(mFontProgramStore.get());
- if(mConstantsDirty) {
+ if (mConstantsDirty) {
mFontShaderFConstant->data(mRSC, &mConstants, sizeof(mConstants));
mConstantsDirty = false;
}
@@ -681,14 +660,13 @@ void FontState::issueDrawCommand() {
}
void FontState::appendMeshQuad(float x1, float y1, float z1,
- float u1, float v1,
- float x2, float y2, float z2,
- float u2, float v2,
- float x3, float y3, float z3,
- float u3, float v3,
- float x4, float y4, float z4,
- float u4, float v4)
-{
+ float u1, float v1,
+ float x2, float y2, float z2,
+ float u2, float v2,
+ float x3, float y3, float z3,
+ float u3, float v3,
+ float x4, float y4, float z4,
+ float u4, float v4) {
const uint32_t vertsPerQuad = 4;
const uint32_t floatsPerVert = 5;
float *currentPos = mTextMeshPtr + mCurrentQuadIndex * vertsPerQuad * floatsPerVert;
@@ -697,7 +675,7 @@ void FontState::appendMeshQuad(float x1, float y1, float z1,
float width = (float)mRSC->getWidth();
float height = (float)mRSC->getHeight();
- if(x1 > width || y1 < 0.0f || x2 < 0 || y4 > height) {
+ if (x1 > width || y1 < 0.0f || x2 < 0 || y4 > height) {
return;
}
@@ -732,7 +710,7 @@ void FontState::appendMeshQuad(float x1, float y1, float z1,
mCurrentQuadIndex ++;
- if(mCurrentQuadIndex == mMaxNumberOfQuads) {
+ if (mCurrentQuadIndex == mMaxNumberOfQuads) {
issueDrawCommand();
mCurrentQuadIndex = 0;
}
@@ -741,7 +719,7 @@ void FontState::appendMeshQuad(float x1, float y1, float z1,
uint32_t FontState::getRemainingCacheCapacity() {
uint32_t remainingCapacity = 0;
uint32_t totalPixels = 0;
- for(uint32_t i = 0; i < mCacheLines.size(); i ++) {
+ for (uint32_t i = 0; i < mCacheLines.size(); i ++) {
remainingCapacity += (mCacheLines[i]->mMaxWidth - mCacheLines[i]->mCurrentCol);
totalPixels += mCacheLines[i]->mMaxWidth;
}
@@ -753,7 +731,7 @@ void FontState::precacheLatin(Font *font) {
// Remaining capacity is measured in %
uint32_t remainingCapacity = getRemainingCacheCapacity();
uint32_t precacheIdx = 0;
- while(remainingCapacity > 25 && precacheIdx < mLatinPrecache.size()) {
+ while (remainingCapacity > 25 && precacheIdx < mLatinPrecache.size()) {
font->getCachedUTFChar((int32_t)mLatinPrecache[precacheIdx]);
remainingCapacity = getRemainingCacheCapacity();
precacheIdx ++;
@@ -765,19 +743,18 @@ void FontState::renderText(const char *text, uint32_t len, int32_t x, int32_t y,
uint32_t startIndex, int32_t numGlyphs,
Font::RenderMode mode,
Font::Rect *bounds,
- uint8_t *bitmap, uint32_t bitmapW, uint32_t bitmapH)
-{
+ uint8_t *bitmap, uint32_t bitmapW, uint32_t bitmapH) {
checkInit();
// Render code here
Font *currentFont = mRSC->getFont();
- if(!currentFont) {
- if(!mDefault.get()) {
+ if (!currentFont) {
+ if (!mDefault.get()) {
mDefault.set(Font::create(mRSC, "DroidSans.ttf", 16, 96));
}
currentFont = mDefault.get();
}
- if(!currentFont) {
+ if (!currentFont) {
LOGE("Unable to initialize any fonts");
return;
}
@@ -785,7 +762,7 @@ void FontState::renderText(const char *text, uint32_t len, int32_t x, int32_t y,
currentFont->renderUTF(text, len, x, y, startIndex, numGlyphs,
mode, bounds, bitmap, bitmapW, bitmapH);
- if(mCurrentQuadIndex != 0) {
+ if (mCurrentQuadIndex != 0) {
issueDrawCommand();
mCurrentQuadIndex = 0;
}
@@ -819,8 +796,7 @@ void FontState::getFontColor(float *r, float *g, float *b, float *a) const {
*a = mConstants.mFontColor[3];
}
-void FontState::deinit(Context *rsc)
-{
+void FontState::deinit(Context *rsc) {
mInitialized = false;
mFontShaderFConstant.clear();
@@ -833,7 +809,7 @@ void FontState::deinit(Context *rsc)
mFontProgramStore.clear();
mTextTexture.clear();
- for(uint32_t i = 0; i < mCacheLines.size(); i ++) {
+ for (uint32_t i = 0; i < mCacheLines.size(); i ++) {
delete mCacheLines[i];
}
mCacheLines.clear();
@@ -841,11 +817,11 @@ void FontState::deinit(Context *rsc)
mDefault.clear();
Vector<Font*> fontsToDereference = mActiveFonts;
- for(uint32_t i = 0; i < fontsToDereference.size(); i ++) {
+ for (uint32_t i = 0; i < fontsToDereference.size(); i ++) {
fontsToDereference[i]->zeroUserRef();
}
- if(mLibrary) {
+ if (mLibrary) {
FT_Done_FreeType( mLibrary );
mLibrary = NULL;
}
@@ -854,10 +830,9 @@ void FontState::deinit(Context *rsc)
namespace android {
namespace renderscript {
-RsFont rsi_FontCreateFromFile(Context *rsc, char const *name, uint32_t fontSize, uint32_t dpi)
-{
+RsFont rsi_FontCreateFromFile(Context *rsc, char const *name, uint32_t fontSize, uint32_t dpi) {
Font *newFont = Font::create(rsc, name, fontSize, dpi);
- if(newFont) {
+ if (newFont) {
newFont->incUserRef();
}
return newFont;
generated by cgit v1.1 at 2025-08-16 09:45:35 +0000