mirror of
https://github.com/WerWolv/ImHex-Patterns.git
synced 2026-03-27 23:37:04 -05:00
1cd7f92a5d
* Add `current_bit_offset()` and `read_bits(...)` to `std::mem` * Replace deprecated BitfieldOrder enum values with new clearer names This adds new options named `MostToLeastSignificant` and `LeastToMostSignificant` to replace the old `LeftToRight` and `RightToLeft` names. These names should be much clearer about what they affect and how. * Throw errors when `std::core::(get|set)_bitfield_order()` are called * Update all patterns to work with the new bitfield behaviors
99 lines
1.6 KiB
Rust
99 lines
1.6 KiB
Rust
#pragma MIME image/qoi
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#pragma endian big
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#include <std/mem.pat>
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namespace qoi {
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enum channels_t : u8 {
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RGB = 3,
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RGBA = 4
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};
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enum color_space_t : u8 {
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sRGB = 0,
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linear = 1
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};
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struct header_t {
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char magic[4];
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u32 width;
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u32 height;
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channels_t channels;
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color_space_t color_space;
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};
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enum tags_t : u8 {
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index = 0b00000000 ... 0b00111111,
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diff = 0b01000000 ... 0b01111111,
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luma = 0b10000000 ... 0b10111111,
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run = 0b11000000 ... 0b11111101,
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rgb = 0b11111110,
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rgba = 0b11111111,
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};
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bitfield op_index {
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tag: 2;
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index: 6;
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} [[color("0000FF")]];
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bitfield op_diff {
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tag: 2;
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dr: 2;
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dg: 2;
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db: 2;
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} [[color("FFFFFF")]];
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bitfield op_luma {
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tag: 2;
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diff_green: 6;
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dr_dg: 4;
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db_dg: 4;
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} [[color("FFFF00")]];
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bitfield op_run {
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tag: 2;
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run_length: 6;
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} [[color("00FF00")]];
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struct op_rgb {
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u8 tag;
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u8 red;
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u8 green;
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u8 blue;
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} [[color("FF7700")]];
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struct op_rgba {
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u8 tag;
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u8 red;
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u8 green;
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u8 blue;
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u8 alpha;
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} [[color("FF0000")]];
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u8 op_type;
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fn get_op_type() {
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op_type = std::mem::read_unsigned($, 1);
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if (op_type < tags_t::rgb)
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op_type &= 0b11000000;
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};
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struct op_t {
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qoi::get_op_type();
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if (op_type == tags_t::index) op_index;
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else if (op_type == tags_t::diff) op_diff;
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else if (op_type == tags_t::luma) op_luma;
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else if (op_type == tags_t::run) op_run;
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else if (op_type == tags_t::rgb) op_rgb;
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else if (op_type == tags_t::rgba) op_rgba;
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};
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struct file_t {
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header_t header;
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op_t data[while(!std::mem::eof())];
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};
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} // namespace qoi
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qoi::file_t qoi_picture @ 0x0;
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