/*******************************************************************************
* Function Name : ReleaseView
* Returns : true if no error occured
* Description : Code in ReleaseView() will be called by the Shell before
* changing to a new rendering context.
*******************************************************************************/
bool OVGFont::ReleaseView()
{
// Cleanup: destroy OpenVG path and paint
vgDestroyFont(m_vgPathFont);
m_vgPathFont = 0;
vgDestroyFont(m_vgImageFont);
m_vgPathFont = 0;
vgDestroyPaint(m_vgFontPaint);
m_vgFontPaint = 0;
return true;
}
void vgft_font_term(VGFT_FONT_T *font)
{
if (font->ft_face)
FT_Done_Face(font->ft_face);
if (font->vg_font)
vgDestroyFont(font->vg_font);
memset(font, 0, sizeof(*font));
}
VCOS_STATUS_T vgft_font_convert_glyphs(VGFT_FONT_T *font, unsigned int char_height, unsigned int dpi_x, unsigned int dpi_y)
{
FT_UInt glyph_index;
FT_ULong ch;
if (FT_Set_Char_Size(font->ft_face, 0, char_height, dpi_x, dpi_y))
{
FT_Done_Face(font->ft_face);
vgDestroyFont(font->vg_font);
return VCOS_EINVAL;
}
ch = FT_Get_First_Char(font->ft_face, &glyph_index);
while (ch != 0)
{
if (FT_Load_Glyph(font->ft_face, glyph_index, FT_LOAD_DEFAULT)) {
FT_Done_Face(font->ft_face);
vgDestroyFont(font->vg_font);
return VCOS_ENOMEM;
}
VGPath vg_path;
FT_Outline *outline = &font->ft_face->glyph->outline;
if (outline->n_contours != 0) {
vg_path = vgCreatePath(VG_PATH_FORMAT_STANDARD, VG_PATH_DATATYPE_F, 1.0f, 0.0f, 0, 0, VG_PATH_CAPABILITY_ALL);
assert(vg_path != VG_INVALID_HANDLE);
convert_outline(outline->points, outline->tags, outline->contours, outline->n_contours, outline->n_points);
vgAppendPathData(vg_path, segments_count, segments, coords);
} else {
vg_path = VG_INVALID_HANDLE;
}
VGfloat origin[] = { 0.0f, 0.0f };
VGfloat escapement[] = { float_from_26_6(font->ft_face->glyph->advance.x), float_from_26_6(font->ft_face->glyph->advance.y) };
vgSetGlyphToPath(font->vg_font, glyph_index, vg_path, VG_FALSE, origin, escapement);
if (vg_path != VG_INVALID_HANDLE) {
vgDestroyPath(vg_path);
}
ch = FT_Get_Next_Char(font->ft_face, ch, &glyph_index);
}
return VCOS_SUCCESS;
}
void vg_data_free ( void* vg_data_ptr )
{
// Evidently, this pointer is the FT_Size object to which
// we attached our data.
FT_Size size = (FT_Size)vg_data_ptr;
struct VG_DATA* data = (struct VG_DATA*)size->generic.data;
if ( data != NULL ) {
vgDestroyFont( data->font );
free( data );
}
}
static void vg_free(void *data)
{
vg_t *vg = (vg_t*)data;
vgDestroyImage(vg->mImage);
if (vg->mFontsOn)
{
vgDestroyFont(vg->mFont);
vg->font_driver->free(vg->mFontRenderer);
vgDestroyPaint(vg->mPaintFg);
vgDestroyPaint(vg->mPaintBg);
}
vg->driver->destroy();
free(vg);
}
static void vg_free(void *data)
{
vg_t *vg = (vg_t*)data;
if (!vg)
return;
vgDestroyImage(vg->mImage);
if (vg->mFontsOn)
{
vgDestroyFont(vg->mFont);
vg->font_driver->free(vg->mFontRenderer);
vgDestroyPaint(vg->mPaintFg);
vgDestroyPaint(vg->mPaintBg);
}
gfx_ctx_free(vg);
free(vg);
}
static void rpi_free(void *data)
{
rpi_t *rpi = (rpi_t*)data;
vgDestroyImage(rpi->mImage);
#ifdef HAVE_FREETYPE
if (rpi->mFontsOn)
{
vgDestroyFont(rpi->mFont);
font_renderer_free(rpi->mFontRenderer);
vgDestroyPaint(rpi->mPaintFg);
vgDestroyPaint(rpi->mPaintBg);
}
#endif
// Release EGL resources
eglMakeCurrent(rpi->mDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
eglDestroySurface(rpi->mDisplay, rpi->mSurface);
eglDestroyContext(rpi->mDisplay, rpi->mContext);
eglTerminate(rpi->mDisplay);
free(rpi);
}