void
WriteGlyphAsTGA(FT_Library &library,
const std::string &fileName,
wchar_t ch,
FT_Face &face,
int size,
const Pixel32 &fontCol,
const Pixel32 outlineCol,
float outlineWidth)
{
// Set the size to use.
if (FT_Set_Char_Size(face, size << 6, size << 6, 90, 90) == 0)
{
// Load the glyph we are looking for.
FT_UInt gindex = FT_Get_Char_Index(face, ch);
if (FT_Load_Glyph(face, gindex, FT_LOAD_NO_BITMAP) == 0)
{
// Need an outline for this to work.
if (face->glyph->format == FT_GLYPH_FORMAT_OUTLINE)
{
// Render the basic glyph to a span list.
Spans spans;
RenderSpans(library, &face->glyph->outline, &spans);
// Next we need the spans for the outline.
Spans outlineSpans;
// Set up a stroker.
FT_Stroker stroker;
FT_Stroker_New(library, &stroker);
FT_Stroker_Set(stroker,
(int)(outlineWidth * 64),
FT_STROKER_LINECAP_ROUND,
FT_STROKER_LINEJOIN_ROUND,
0);
FT_Glyph glyph;
if (FT_Get_Glyph(face->glyph, &glyph) == 0)
{
FT_Glyph_StrokeBorder(&glyph, stroker, 0, 1);
// Again, this needs to be an outline to work.
if (glyph->format == FT_GLYPH_FORMAT_OUTLINE)
{
// Render the outline spans to the span list
FT_Outline *o =
&reinterpret_cast<FT_OutlineGlyph>(glyph)->outline;
RenderSpans(library, o, &outlineSpans);
}
// Clean up afterwards.
FT_Stroker_Done(stroker);
FT_Done_Glyph(glyph);
// Now we need to put it all together.
if (!spans.empty())
{
// Figure out what the bounding rect is for both the span lists.
Rect rect(spans.front().x,
spans.front().y,
spans.front().x,
spans.front().y);
for (Spans::iterator s = spans.begin();
s != spans.end(); ++s)
{
rect.Include(Vec2(s->x, s->y));
rect.Include(Vec2(s->x + s->width - 1, s->y));
}
for (Spans::iterator s = outlineSpans.begin();
s != outlineSpans.end(); ++s)
{
rect.Include(Vec2(s->x, s->y));
rect.Include(Vec2(s->x + s->width - 1, s->y));
}
#if 0
// This is unused in this test but you would need this to draw
// more than one glyph.
float bearingX = face->glyph->metrics.horiBearingX >> 6;
float bearingY = face->glyph->metrics.horiBearingY >> 6;
float advance = face->glyph->advance.x >> 6;
#endif
// Get some metrics of our image.
int imgWidth = rect.Width(),
imgHeight = rect.Height(),
imgSize = imgWidth * imgHeight;
// Allocate data for our image and clear it out to transparent.
Pixel32 *pxl = new Pixel32[imgSize];
memset(pxl, 0, sizeof(Pixel32) * imgSize);
// Loop over the outline spans and just draw them into the
// image.
for (Spans::iterator s = outlineSpans.begin();
s != outlineSpans.end(); ++s)
for (int w = 0; w < s->width; ++w)
pxl[(int)((imgHeight - 1 - (s->y - rect.ymin)) * imgWidth
+ s->x - rect.xmin + w)] =
Pixel32(outlineCol.r, outlineCol.g, outlineCol.b,
s->coverage);
// Then loop over the regular glyph spans and blend them into
// the image.
for (Spans::iterator s = spans.begin();
s != spans.end(); ++s)
for (int w = 0; w < s->width; ++w)
{
Pixel32 &dst =
pxl[(int)((imgHeight - 1 - (s->y - rect.ymin)) * imgWidth
+ s->x - rect.xmin + w)];
Pixel32 src = Pixel32(fontCol.r, fontCol.g, fontCol.b,
s->coverage);
dst.r = (int)(dst.r + ((src.r - dst.r) * src.a) / 255.0f);
dst.g = (int)(dst.g + ((src.g - dst.g) * src.a) / 255.0f);
dst.b = (int)(dst.b + ((src.b - dst.b) * src.a) / 255.0f);
dst.a = MIN(255, dst.a + src.a);
}
// Dump the image to disk.
WriteTGA(fileName, pxl, imgWidth, imgHeight);
delete [] pxl;
}
}
void DivNode::preRender(const VertexArrayPtr& pVA, bool bIsParentActive,
float parentEffectiveOpacity)
{
AreaNode::preRender(pVA, bIsParentActive, parentEffectiveOpacity);
if (getCrop() && getSize() != glm::vec2(0,0)) {
pVA->startSubVA(m_ClipVA);
glm::vec2 viewport = getSize();
m_ClipVA.appendPos(glm::vec2(0,0), glm::vec2(0,0), Pixel32(0,0,0,0));
m_ClipVA.appendPos(glm::vec2(0,viewport.y), glm::vec2(0,0), Pixel32(0,0,0,0));
m_ClipVA.appendPos(glm::vec2(viewport.x,0), glm::vec2(0,0), Pixel32(0,0,0,0));
m_ClipVA.appendPos(viewport, glm::vec2(0,0), Pixel32(0,0,0,0));
m_ClipVA.appendQuadIndexes(0, 1, 2, 3);
}
for (unsigned i = 0; i < getNumChildren(); i++) {
m_Children[i]->preRender(pVA, bIsParentActive, getEffectiveOpacity());
}
}
void AreaNode::setElementOutlineColor(const std::string& sColor)
{
m_sElementOutlineColor = sColor;
if (sColor == "") {
m_ElementOutlineColor = Pixel32(0,0,0,0);
} else {
m_ElementOutlineColor = colorStringToColor(m_sElementOutlineColor);
}
}
Pixel32 colorStringToColor(const UTF8String& s)
{
int r, g, b;
int numChars;
int numItems = sscanf(s.c_str(), "%2x%2x%2x%n", &r, &g, &b, &numChars);
if (s.length() != 6 || numChars != 6 || numItems != 3) {
throw(Exception (AVG_ERR_INVALID_ARGS, "colorstring cannot be parsed."));
}
return Pixel32(r, g, b);
}
void DivNode::render()
{
glm::vec2 viewport = getSize();
m_pClipVertexes->reset();
m_pClipVertexes->appendPos(glm::vec2(0,0), glm::vec2(0,0), Pixel32(0,0,0,0));
m_pClipVertexes->appendPos(glm::vec2(0,viewport.y), glm::vec2(0,0), Pixel32(0,0,0,0));
m_pClipVertexes->appendPos(glm::vec2(viewport.x,0), glm::vec2(0,0), Pixel32(0,0,0,0));
m_pClipVertexes->appendPos(viewport, glm::vec2(0,0), Pixel32(0,0,0,0));
m_pClipVertexes->appendQuadIndexes(0, 1, 2, 3);
if (getCrop()) {
getCanvas()->pushClipRect(getTransform(), m_pClipVertexes);
}
for (unsigned i = 0; i < getNumChildren(); i++) {
getChild(i)->maybeRender();
}
if (getCrop()) {
glLoadMatrixf(glm::value_ptr(getTransform()));
getCanvas()->popClipRect(getTransform(), m_pClipVertexes);
}
}
void AreaNode::renderOutlines(const VertexArrayPtr& pVA, Pixel32 parentColor)
{
Pixel32 effColor = getEffectiveOutlineColor(parentColor);
if (effColor != Pixel32(0,0,0,0)) {
glm::vec2 size = getSize();
glm::vec2 p0 = getAbsPos(glm::vec2(0.5, 0.5));
glm::vec2 p1 = getAbsPos(glm::vec2(size.x+0.5,0.5));
glm::vec2 p2 = getAbsPos(glm::vec2(size.x+0.5,size.y+0.5));
glm::vec2 p3 = getAbsPos(glm::vec2(0.5,size.y+0.5));
pVA->addLineData(effColor, p0, p1, 1);
pVA->addLineData(effColor, p1, p2, 1);
pVA->addLineData(effColor, p2, p3, 1);
pVA->addLineData(effColor, p3, p0, 1);
}
}
void Canvas::renderOutlines(GLContext* pContext, const glm::mat4& transform)
{
VertexArrayPtr pVA = GLContextManager::get()->createVertexArray();
pVA->initForGLContext(pContext);
pContext->setBlendMode(GLContext::BLEND_BLEND, false);
m_pRootNode->renderOutlines(pVA, Pixel32(0,0,0,0));
StandardShader* pShader = pContext->getStandardShader();
pShader->setTransform(transform);
pShader->setUntextured();
pShader->setAlpha(0.5f);
pShader->activate();
if (pVA->getNumVerts() != 0) {
pVA->draw(pContext);
}
}
void Canvas::renderOutlines(const glm::mat4& transform)
{
GLContext* pContext = GLContext::getMain();
VertexArrayPtr pVA(new VertexArray);
pContext->setBlendMode(GLContext::BLEND_BLEND, false);
m_pRootNode->renderOutlines(pVA, Pixel32(0,0,0,0));
StandardShaderPtr pShader = pContext->getStandardShader();
pShader->setTransform(transform);
pShader->setUntextured();
pShader->setAlpha(0.5f);
pShader->activate();
if (pVA->getNumVerts() != 0) {
pVA->update();
pVA->draw();
}
}
void Canvas::renderOutlines()
{
GLContext* pContext = GLContext::getCurrent();
VertexArrayPtr pVA(new VertexArray);
pContext->setBlendMode(GLContext::BLEND_BLEND, false);
glMatrixMode(GL_MODELVIEW);
glLoadMatrixf(glm::value_ptr(glm::mat4(1.0)));
m_pRootNode->renderOutlines(pVA, Pixel32(0,0,0,0));
StandardShaderPtr pShader = GLContext::getCurrent()->getStandardShader();
pShader->setUntextured();
pShader->activate();
if (pVA->getCurVert() != 0) {
pVA->update();
pContext->enableGLColorArray(true);
pVA->draw();
}
}
void TrackerThread::drawBlobs(BlobVectorPtr pBlobs, BitmapPtr pSrcBmp,
BitmapPtr pDestBmp, int Offset, bool bTouch)
{
if (!pDestBmp) {
return;
}
ScopeTimer timer(ProfilingZoneDraw);
string sConfigPrefix;
if (bTouch) {
sConfigPrefix = "/tracker/touch/";
} else {
sConfigPrefix = "/tracker/track/";
}
int minArea = m_pConfig->getIntParam(sConfigPrefix+"areabounds/@min");
int maxArea = m_pConfig->getIntParam(sConfigPrefix+"areabounds/@max");
float minEccentricity = m_pConfig->getFloatParam(
sConfigPrefix+"eccentricitybounds/@min");
float maxEccentricity = m_pConfig->getFloatParam(
sConfigPrefix+"eccentricitybounds/@max");
// Get max. pixel value in Bitmap
int max = 0;
HistogramPtr pHist = pSrcBmp->getHistogram(4);
int i;
for (i = 255; i >= 0; i--) {
if ((*pHist)[i] != 0) {
max = i;
i = 0;
}
}
for (BlobVector::iterator it2 = pBlobs->begin(); it2 != pBlobs->end(); ++it2) {
if (isRelevant(*it2, minArea, maxArea, minEccentricity, maxEccentricity)) {
if (bTouch) {
(*it2)->render(pSrcBmp, pDestBmp,
Pixel32(0xFF, 0xFF, 0xFF, 0xFF), Offset, max, bTouch, true,
Pixel32(0x00, 0x00, 0xFF, 0xFF));
} else {
(*it2)->render(pSrcBmp, pDestBmp,
Pixel32(0xFF, 0xFF, 0x00, 0x80), Offset, max, bTouch, true,
Pixel32(0x00, 0x00, 0xFF, 0xFF));
}
} else {
if (bTouch) {
(*it2)->render(pSrcBmp, pDestBmp,
Pixel32(0xFF, 0x00, 0x00, 0xFF), Offset, max, bTouch, false);
} else {
(*it2)->render(pSrcBmp, pDestBmp,
Pixel32(0x80, 0x80, 0x00, 0x80), Offset, max, bTouch, false);
}
}
}
}
void DivNode::renderOutlines(const VertexArrayPtr& pVA, Pixel32 parentColor)
{
Pixel32 effColor = getEffectiveOutlineColor(parentColor);
if (effColor != Pixel32(0,0,0,0)) {
glm::vec2 size = getSize();
if (size == glm::vec2(0,0)) {
glm::vec2 p0 = getAbsPos(glm::vec2(-4, 0.5));
glm::vec2 p1 = getAbsPos(glm::vec2(5, 0.5));
glm::vec2 p2 = getAbsPos(glm::vec2(0.5, -4));
glm::vec2 p3 = getAbsPos(glm::vec2(0.5, 5));
pVA->addLineData(effColor, p0, p1, 1);
pVA->addLineData(effColor, p2, p3, 1);
} else {
AreaNode::renderOutlines(pVA, parentColor);
}
}
for (unsigned i = 0; i < getNumChildren(); i++) {
getChild(i)->renderOutlines(pVA, effColor);
}
}
void CameraNode::open()
{
m_pCamera->startCapture();
setViewport(-32767, -32767, -32767, -32767);
PixelFormat pf = getPixelFormat();
IntPoint size = getMediaSize();
bool bMipmap = getMaterial().getUseMipmaps();
m_pTex = GLTexturePtr(new GLTexture(size, pf, bMipmap));
m_pTex->enableStreaming();
getSurface()->create(pf, m_pTex);
BitmapPtr pBmp = m_pTex->lockStreamingBmp();
if (pf == B8G8R8X8 || pf == B8G8R8A8) {
FilterFill<Pixel32> Filter(Pixel32(0,0,0,255));
Filter.applyInPlace(pBmp);
} else if (pf == I8) {
FilterFill<Pixel8> Filter(0);
Filter.applyInPlace(pBmp);
}
m_pTex->unlockStreamingBmp(true);
setupFX(true);
}
void CameraNode::preRender()
{
Node::preRender();
if (isAutoUpdateCameraImage()) {
ScopeTimer Timer(CameraFetchImage);
updateToLatestCameraImage();
}
if (m_bNewBmp && isVisible()) {
ScopeTimer Timer(CameraDownloadProfilingZone);
m_FrameNum++;
BitmapPtr pBmp = m_pTex->lockStreamingBmp();
if (pBmp->getPixelFormat() != m_pCurBmp->getPixelFormat()) {
cerr << "Surface: " << pBmp->getPixelFormat() << ", CamDest: "
<< m_pCurBmp->getPixelFormat() << endl;
}
AVG_ASSERT(pBmp->getPixelFormat() == m_pCurBmp->getPixelFormat());
pBmp->copyPixels(*m_pCurBmp);
m_pTex->unlockStreamingBmp(true);
bind();
renderFX(getSize(), Pixel32(255, 255, 255, 255), false);
m_bNewBmp = false;
}
}
Pixel32 Image32::NearestSample(const float& x,const float& y) const
{
return Pixel32();
}
Color::operator Pixel32() const
{
return Pixel32(m_R, m_G, m_B);
}
Pixel32 Image32::BilinearSample(const float& x,const float& y) const
{
return Pixel32();
}
Pixel32 Image32::GaussianSample(const float& x,const float& y,const float& variance,const float& radius) const
{
return Pixel32();
}
void VideoWriter::writeDummyFrame()
{
BitmapPtr pBmp = BitmapPtr(new Bitmap(m_FrameSize, B8G8R8X8));
FilterFill<Pixel32>(Pixel32(0,0,0,255)).applyInPlace(pBmp);
sendFrameToEncoder(pBmp);
}
