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C++: implement creation of image from raw data

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Issue #616
This commit is contained in:
Olivier Goffart 2023-03-17 17:20:04 +01:00 • committed by Olivier Goffart
parent c1dbe974ef
commit be47c8464c
3 changed files with 48 additions and 6 deletions
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31
api/cpp/include/slint_image.h
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@ -11,6 +11,9 @@
namespace slint {
using cbindgen_private::types::Rgb8Pixel;
using cbindgen_private::types::Rgba8Pixel;
/// An image type that can be displayed by the Image element
struct Image
{
@ -25,13 +28,33 @@ public:
return img;
}
/*
static Image load_from_argb(int width, int height, const SharedVector<uint32_t> &data) {
/// Construct an image from a vector of RGB pixel.
/// The size of the vector \a data should be \a width * \a height
static Image from_raw_data(unsigned int width, unsigned int height,
const SharedVector<Rgb8Pixel> &data)
{
Image img;
img.data = Data::EmbeddedRgbaImage(width, height, data);
img.data = Data::ImageInner_EmbeddedImage(
cbindgen_private::types::ImageCacheKey::Invalid(),
cbindgen_private::types::SharedImageBuffer::RGB8(
cbindgen_private::types::SharedPixelBuffer<Rgb8Pixel> {
.width = width, .height = height, .data = data }));
return img;
}
/// Construct an image from a vector of RGBA pixels.
/// The size of the vector \a data should be \a width * \a height
static Image from_raw_data(unsigned int width, unsigned int height,
const SharedVector<Rgba8Pixel> &data)
{
Image img;
img.data = Data::ImageInner_EmbeddedImage(
cbindgen_private::types::ImageCacheKey::Invalid(),
cbindgen_private::types::SharedImageBuffer::RGBA8(
cbindgen_private::types::SharedPixelBuffer<Rgba8Pixel> {
.width = width, .height = height, .data = data }));
return img;
}
*/
/// Returns the size of the Image in pixels.
Size<unsigned int> size() const { return cbindgen_private::types::slint_image_size(&data); }