diff options
Diffstat (limited to 'plugingui/image.cc')
| -rw-r--r-- | plugingui/image.cc | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/plugingui/image.cc b/plugingui/image.cc index 70ee08e..54fd15e 100644 --- a/plugingui/image.cc +++ b/plugingui/image.cc @@ -60,6 +60,7 @@ Image::Image(Image&& other) : _width(other._width) , _height(other._height) , image_data(std::move(other.image_data)) + , image_data_raw(std::move(other.image_data_raw)) , filename(other.filename) { other._width = 0; @@ -74,6 +75,8 @@ Image& Image::operator=(Image&& other) { image_data.clear(); image_data = std::move(other.image_data); + image_data_raw.clear(); + image_data_raw = std::move(other.image_data_raw); _width = other._width; _height = other._height; valid = other.valid; @@ -111,6 +114,10 @@ void Image::setError() image_data.clear(); image_data.reserve(_width * _height); + image_data_raw.clear(); + image_data_raw.reserve(_width * _height * 4); + memcpy(image_data_raw.data(), ptr, _height * _width); + for(std::size_t y = 0; y < _height; ++y) { for(std::size_t x = 0; x < _width; ++x) @@ -125,6 +132,7 @@ void Image::setError() void Image::load(const char* data, size_t size) { + has_alpha = false; unsigned int iw{0}, ih{0}; std::uint8_t* char_image_data{nullptr}; unsigned int res = lodepng_decode32((std::uint8_t**)&char_image_data, @@ -145,12 +153,17 @@ void Image::load(const char* data, size_t size) image_data.clear(); image_data.reserve(_width * _height); + image_data_raw.clear(); + image_data_raw.reserve(_width * _height * 4); + memcpy(image_data_raw.data(), char_image_data, _height * _width * 4); + for(std::size_t y = 0; y < _height; ++y) { for(std::size_t x = 0; x < _width; ++x) { std::uint8_t* ptr = &char_image_data[(x + y * _width) * 4]; image_data.emplace_back(Colour{ptr[0], ptr[1], ptr[2], ptr[3]}); + has_alpha |= ptr[3] != 0xff; } } @@ -180,6 +193,16 @@ const Colour& Image::getPixel(size_t x, size_t y) const return image_data[x + y * _width]; } +const std::uint8_t* Image::line(std::size_t y) const +{ + return image_data_raw.data() + y * _width * 4; +} + +bool Image::hasAlpha() const +{ + return has_alpha; +} + bool Image::isValid() const { return valid; |