Adam Macdonald
a8d8b9b9ab
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80 lines
2.4 KiB
C++
80 lines
2.4 KiB
C++
#pragma once
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#include <glm/vec2.hpp>
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#include <cstddef>
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#include <cstdint>
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#include <expected>
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#include <filesystem>
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#include <string_view>
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#include <vector>
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namespace kuiper
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{
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namespace resource
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{
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struct image_error {
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std::string_view message;
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};
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class image {
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public:
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image(std::uint32_t width,
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std::uint32_t height,
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std::uint32_t n_channels,
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const std::uint8_t* data,
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std::size_t len)
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: m_width(width), m_height(height), m_channels(n_channels), m_data(data, data + len) {}
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image() = default;
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~image() = default;
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image(const image& other) = default;
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image& operator=(const image& other) = default;
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image(image&& other) noexcept = default;
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image& operator=(image&& other) noexcept = default;
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static image make_blank(std::uint32_t width, std::uint32_t height, std::uint32_t n_channels) noexcept;
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static std::expected<image, image_error> from_path(const std::filesystem::path& path,
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std::uint8_t num_channels = 4) noexcept;
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static std::expected<image, image_error> from_memory(const std::uint8_t* data,
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std::size_t len,
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std::uint8_t num_channels = 4) noexcept;
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std::uint32_t width() const noexcept {
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return m_width;
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}
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std::uint32_t height() const noexcept {
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return m_height;
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}
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glm::uvec2 dimensions() const noexcept {
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return {m_width, m_height};
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}
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std::uint32_t channels() const noexcept {
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return m_channels;
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}
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const std::vector<std::uint8_t>& pixel_data() const noexcept {
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return m_data;
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}
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std::vector<std::uint8_t>& pixel_data_mut() noexcept {
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return m_data;
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}
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void resize(std::uint32_t width, std::uint32_t height) noexcept;
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private:
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std::uint32_t m_width {0};
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std::uint32_t m_height {0};
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std::uint32_t m_channels {0};
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std::vector<std::uint8_t> m_data {};
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};
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} // namespace resource
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} // namespace kuiper
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