std::vector<uint32_t> TextTileSet::copy_glyph_bitmap(const ft::BitmapGlyph& glyph) const
{
auto bitmap_size = tile_width() * tile_height();
std::vector<uint32_t> bitmap_data(bitmap_size);
const auto source_data = glyph.buffer();
if(source_data)
{
for(auto y = 0; y < glyph.rows(); ++y)
{
for(auto x = 0; x < glyph.width(); ++x)
{
auto x_pos = x + glyph.left();
auto y_pos = y + tile_height() - glyph.top() - m_vert_shift;
auto index = x_pos + y_pos * tile_width();
if(index < bitmap_size && index >= 0)
{
bitmap_data[index] = 0x00FFFFFF | (source_data[x + y * glyph.pitch()] << 24);
}
}
}
}
return bitmap_data;
}
void TextTileSet::add_glyph(const TileLocation& location, unsigned int character)
{
auto glyph = std::static_pointer_cast<const ft::BitmapGlyph>(
m_font_face->get_glyph(character));
auto bitmap_data = copy_glyph_bitmap(*glyph);
Rectanglei tile_location(location.bottom_left.x * texture_width(),
location.bottom_left.y * texture_height(),
tile_width(), tile_height());
auto bound_texture = m_context->bind_texture_array_2d(*m_texture);
bound_texture.update_data(tile_location, location.layer, 1,
gl::Texture::DataPixelFormat::BGRA,
gl::Texture::PixelType::UByte, bitmap_data.data());
}
void TextTileSet::compute_geometries(int min_slots)
{
auto g_character = std::static_pointer_cast<const ft::BitmapGlyph>(m_font_face->get_glyph('g'));
int below_baseline = g_character->top() - g_character->rows();
if(below_baseline > 0)
{
below_baseline = 0;
}
m_vert_shift = -below_baseline;
m_tile_height = m_vert_shift + m_font_face->line_height();
m_texture_layers = std::ceil(static_cast<float>(min_slots) /
(tiles_per_line() * tile_lines()));
m_cell_width = tile_width() / static_cast<double>(texture_width());
m_cell_height = tile_height() / static_cast<double>(texture_height());
auto tile_count = tiles_per_line() * tile_lines() * m_texture_layers;
m_free_slots.resize(tile_count);
m_tiles.resize(tile_count);
}
void Save::save(const Image & in, const Image_Io_Frame_Info & frame)
throw (Error)
{
//DJV_DEBUG("Save::save");
//DJV_DEBUG_PRINT("in = " << in);
// Open the file.
_open(_file.get(frame.frame));
// Convert the image.
const Pixel_Data * p = ∈
if (in.info() != _info)
{
//DJV_DEBUG_PRINT("convert = " << _image);
_image.zero();
Gl_Image::copy(in, _image);
p = &_image;
}
// Write the file.
const int w = p->w(), h = p->h();
const int channels = Pixel::channels(p->info().pixel);
const int channel_bytes = Pixel::channel_bytes(p->info().pixel);
const int bytes = Pixel::bytes(p->info().pixel);
bool compress = _options.compression ? true : false;
uint32_t length = 0;
//DJV_DEBUG_PRINT("channels = " << channels);
//DJV_DEBUG_PRINT("channel_bytes = " << channel_bytes);
//DJV_DEBUG_PRINT("bytes = " << bytes);
size_t pos = 0;
pos = _io.position();
//DJV_DEBUG_PRINT("position = " << static_cast<int>(pos));
// 'FOR4' type
_io.set_u8('F');
_io.set_u8('O');
_io.set_u8('R');
_io.set_u8('4');
// 'FOR4' length
// NOTE: only reserved for now.
_io.set_u32(length);
// 'TBMP' type
_io.set_u8('T');
_io.set_u8('B');
_io.set_u8('M');
_io.set_u8('P');
// Write tiles.
V2i size = tile_size (w, h);
// Y order.
for (int y = 0; y < size.y; y++)
{
// X order.
for (int x = 0; x < size.x; x++)
{
// Set tile coordinates.
uint16_t xmin, xmax, ymin, ymax;
// Set xmin and xmax.
xmin = x * tile_width();
xmax = Math::min(xmin + tile_width(), w) - 1;
// Set ymin and ymax.
ymin = y * tile_height();
ymax = Math::min(ymin + tile_height(), h) - 1;
// Set width and height.
uint32_t tw = xmax - xmin + 1;
uint32_t th = ymax - ymin + 1;
// Set type.
_io.set_u8('R');
_io.set_u8('G');
_io.set_u8('B');
_io.set_u8('A');
// Length.
uint32_t length = tw * th * bytes;
// Tile length.
uint32_t tile_length = length;
// Align.
length = align_size(length, 4);
// Append xmin, xmax, ymin and ymax.
length += 8;
// Tile compression.
bool tile_compress = compress;
// Set bytes.
Memory_Buffer<uint8_t> tile(tile_length);
uint8_t * out_p = tile();
// Handle 8-bit data.
if (p->info().pixel == Pixel::RGB_U8 ||
p->info().pixel == Pixel::RGBA_U8)
{
if (tile_compress)
{
uint32_t index = 0, size = 0;
// Set bytes.
// NOTE: prevent buffer overrun.
Memory_Buffer<uint8_t> tmp(tile_length * 2);
// Map: RGB(A)8 RGBA to BGRA
for (int c = (channels * channel_bytes) - 1; c >= 0; --c)
{
Memory_Buffer<uint8_t> in(tw * th);
uint8_t * in_p = in();
// Data.
for (uint16_t py = ymin; py <= ymax; py++)
{
const uint8_t * in_dy = p->data(0, py);
for (uint16_t px = xmin; px <= xmax; px++)
{
// Get pixel.
uint8_t pixel;
const uint8_t * in_dx = in_dy + px * bytes + c;
Memory::copy(in_dx, &pixel, 1);
// Set pixel.
*in_p++ = pixel;
}
}
// Compress
size = rle_save(in(), tmp() + index, tw * th);
index += size;
}
// If size exceeds tile length use uncompressed.
if (index < tile_length)
{
Memory::copy(tmp(), tile(), index);
// Set tile length.
tile_length = index;
// Append xmin, xmax, ymin and ymax.
length = index + 8;
// Set length.
uint32_t align = align_size(length, 4);
if (align > length)
{
out_p = tile() + index;
// Pad.
for (int i = 0;
i < static_cast<int>(align - length);
i++)
{
*out_p++ = '\0';
tile_length++;
}
}
}
else
{
tile_compress = false;
}
}
if (!tile_compress)
{
for (uint16_t py = ymin; py <= ymax; py++)
{
const uint8_t * in_dy = p->data(0, py);
for (uint16_t px = xmin; px <= xmax; px++)
{
// Map: RGB(A)8 RGBA to BGRA
for (int c = channels - 1; c >= 0; --c)
{
// Get pixel.
uint8_t pixel;
const uint8_t * in_dx =
in_dy + px * bytes + c * channel_bytes;
Memory::copy(in_dx, &pixel, 1);
// Set pixel.
*out_p++ = pixel;
}
}
}
}
}
// Handle 16-bit data.
else if (
p->info().pixel == Pixel::RGB_U16 ||
p->info().pixel == Pixel::RGBA_U16)
{
if (tile_compress)
{
uint32_t index = 0, size = 0;
// Set bytes.
// NOTE: prevent buffer overrun.
Memory_Buffer<uint8_t> tmp(tile_length * 2);
// Set map.
int* map = NULL;
if (Memory::endian () == Memory::LSB)
{
int rgb16[] = { 0, 2, 4, 1, 3, 5 };
int rgba16[] = { 0, 2, 4, 7, 1, 3, 5, 6 };
if (_info.pixel == Pixel::RGB_U16)
{
map = rgb16;
}
else
{
map = rgba16;
}
}
else
{
int rgb16[] = { 1, 3, 5, 0, 2, 4 };
int rgba16[] = { 1, 3, 5, 7, 0, 2, 4, 6 };
if (_info.pixel == Pixel::RGB_U16)
{
map = rgb16;
}
else
{
map = rgba16;
}
}
// Map: RGB(A)16 RGBA to BGRA
for (int c = (channels * channel_bytes) - 1; c >= 0; --c)
{
int mc = map[c];
Memory_Buffer<uint8_t> in(tw * th);
uint8_t * in_p = in();
// Data.
for (uint16_t py = ymin; py <= ymax; py++)
{
const uint8_t * in_dy = p->data(0, py);
for (uint16_t px = xmin; px <= xmax; px++)
{
// Get pixel.
uint8_t pixel;
const uint8_t * in_dx = in_dy + px * bytes + mc;
Memory::copy(in_dx, &pixel, 1);
// Set pixel.
*in_p++ = pixel;
}
}
// Compress
size = rle_save(in(), tmp() + index, tw * th);
index += size;
}
// If size exceeds tile length use uncompressed.
if (index < tile_length)
{
Memory::copy(tmp(), tile(), index);
// Set tile length.
tile_length = index;
// Append xmin, xmax, ymin and ymax.
length = index + 8;
// Set length.
uint32_t align = align_size(length, 4);
if (align > length)
{
out_p = tile() + index;
// Pad.
for (
int i = 0;
i < static_cast<int>(align - length);
i++)
{
*out_p++ = '\0';
tile_length++;
}
}
}
else
{
tile_compress = false;
}
}
if (!tile_compress)
{
for (uint16_t py = ymin; py <= ymax; py++)
{
const uint8_t * in_dy = p->data(0, py);
for (uint16_t px = xmin; px <= xmax; px++)
{
// Map: RGB(A)16 RGBA to BGRA
for (int c = channels - 1; c >= 0; --c)
{
uint16_t pixel;
const uint8_t * in_dx =
in_dy + px * bytes + c * channel_bytes;
if (Memory::endian () == Memory::LSB)
{
Memory::endian(in_dx, &pixel, 1, 2);
}
else
{
Memory::copy(in_dx, &pixel, 2);
}
// Set pixel.
*out_p++ = pixel;
out_p++;
}
}
}
}
}
// Set length.
_io.set_u32(length);
// Set xmin, xmax, ymin and ymax.
_io.set_u16(xmin);
_io.set_u16(ymin);
_io.set_u16(xmax);
_io.set_u16(ymax);
// Write.
_io.set(tile(), tile_length);
}
}
// Set FOR4 CIMG and FOR4 TBMP size
uint32_t p0 = _io.position() - 8;
uint32_t p1 = p0 - pos;
// NOTE: FOR4 <size> CIMG
_io.position (4);
_io.set_u32 (p0);
// NOTE: FOR4 <size> TBMP
_io.position (pos + 4);
_io.set_u32 (p1);
_io.close();
}