void _do_load_pages(
PageGetter get_page,
const Element* elem,
GLsizei size
)
{
_page_storage.Bind();
// go through the list of code-points
for(GLsizei i=0; i!=size; ++i)
{
// get the page number for the glyph
GLuint page = get_page(elem[i]);
// check if the page is active
if(!_pager.UsePage(page))
{
// if not let the pager find
// a frame for the new page
auto frame = _pager.FindFrame();
// load the bitmap image
_page_storage.LoadPage(
frame,
_load_page_bitmap(page),
_load_page_metric(page)
);
// tell the pages that the page
// is successfully loaded in the frame
_pager.SwapPageIn(frame, page);
}
}
}
void _do_load_pages(
const Element* elem,
GLsizei size
)
{
_page_storage.Bind();
// go through the list of code-points
for(GLsizei i=0; i!=size; ++i)
{
// get the page number for the glyph
GLint page = elem[i];
// check if the page is active
if(!_pager.UsePage(page))
{
// if not let the pager find
// a frame for the new page
auto frame = _pager.FindFrame();
// load the bitmap image
unsigned glyphs_per_page =
BitmapGlyphGlyphsPerPage(_parent);
std::vector<unsigned char>
bmp(_tex_side*_tex_side);
std::vector<GLfloat>
metrics(glyphs_per_page*12);
_do_make_page_bitmap_and_metric(
page,
bmp.data(),
metrics.data()
);
_page_storage.LoadPage(
frame,
images::Image(
_tex_side,
_tex_side,
1,
1,
bmp.data(),
PixelDataFormat::Red,
PixelDataInternalFormat::R8
),
metrics
);
// tell the pager that the page
// is successfully loaded in the frame
_pager.SwapPageIn(frame, page);
}
}
}
TextureUnitSelector MetricTexUnit(void) const
{
return _page_storage.MetricTexUnit();
}
TextureUnitSelector BitmapTexUnit(void) const
{
return _page_storage.BitmapTexUnit();
}
void Use(void) const
{
_pager.Bind();
_page_storage.Bind();
}
