Image decoder specialization for QOI images.
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#include <qoi_decoder.h>
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| | QoiDecoder (RuntimeImage *image) |
| | Construct a new QOI decoder object.
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| void | reset () override |
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| int HOT | decode (uint8_t *buffer, size_t size) override |
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| bool | knows_end () const override |
| | The header gives the pixel count, so the end is known once it has been parsed.
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| bool | is_finished () const override |
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| | ImageDecoder (RuntimeImage *image, ImageFormat format) |
| | Construct a new Image Decoder object.
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| virtual | ~ImageDecoder ()=default |
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| ImageFormat | get_format () const |
| | Get the image format handled by this decoder.
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| bool | is_active () const |
| | Check if a decoding session is in progress (prepare() called, reset() not yet).
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| virtual int | prepare (size_t expected_size) |
| | Initialize the decoder, starting a new decoding session.
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| bool | set_size (int width, int height) |
| | Request the image to be resized once the actual dimensions are known.
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| void | draw (int x, int y, int w, int h, const Color &color) |
| | Fill a rectangle on the display_buffer using the defined color.
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Image decoder specialization for QOI images.
Definition at line 16 of file qoi_decoder.h.
◆ QoiDecoder()
| esphome::runtime_image::QoiDecoder::QoiDecoder |
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RuntimeImage * | image | ) |
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inline |
Construct a new QOI decoder object.
- Parameters
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Definition at line 23 of file qoi_decoder.h.
◆ decode()
| int HOT esphome::runtime_image::QoiDecoder::decode |
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uint8_t * | buffer, |
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size_t | size ) |
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overridevirtual |
QOI Header definition, for reference: char magic[4]; // magic bytes "qoif" uint32_t width; // image width in pixels (BE) uint32_t height; // image height in pixels (BE) uint8_t channels; // 3 = RGB, 4 = RGBA uint8_t colorspace; // 0 = sRGB with linear alpha, 1 = all channels linear
Implements esphome::runtime_image::ImageDecoder.
Definition at line 51 of file qoi_decoder.cpp.
◆ is_finished()
| bool esphome::runtime_image::QoiDecoder::is_finished |
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const |
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inlineoverridevirtual |
◆ knows_end()
| bool esphome::runtime_image::QoiDecoder::knows_end |
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const |
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inlineoverridevirtual |
◆ reset()
| void esphome::runtime_image::QoiDecoder::reset |
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overridevirtual |
◆ bits_per_pixel_
| uint16_t esphome::runtime_image::QoiDecoder::bits_per_pixel_ {0} |
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◆ color_table_
| std::unique_ptr<Color[]> esphome::runtime_image::QoiDecoder::color_table_ |
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◆ current_index_
| size_t esphome::runtime_image::QoiDecoder::current_index_ {0} |
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◆ height_
| size_t esphome::runtime_image::QoiDecoder::height_ {0} |
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◆ last_pixel_
| Color esphome::runtime_image::QoiDecoder::last_pixel_ {0, 0, 0, 255} |
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◆ paint_index_
| size_t esphome::runtime_image::QoiDecoder::paint_index_ {0} |
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◆ width_
| size_t esphome::runtime_image::QoiDecoder::width_ {0} |
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The documentation for this class was generated from the following files:
Public Member Functions inherited from esphome::runtime_image::ImageDecoder
1.12.0