Henrik Hautakoski
c731cda1a2
source/Graphics/Image/IcoFormat.cpp: use new PixelFormat. source/Graphics/Image.cpp: update to confirm with new PixelFormat Spectre/Graphics/PixelFormat: add PF_getNumChannels() Spectre/Graphics/PixelFormat: Rework the enum with proper naming convention and documentation.
49 lines
1.9 KiB
C++
49 lines
1.9 KiB
C++
#ifndef SPECTRE_GRAPHICS_PIXELFORMAT_H
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#define SPECTRE_GRAPHICS_PIXELFORMAT_H
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#include <cstdint>
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namespace sp {
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enum PixelFormat
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{
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PF_Unknown = 0,
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PF_Alpha = 1, // 8 bit alpha channel.
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// Byte-order formats.
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// Pixels are always ordered with the first channel at the first byte, second channel at the second byte.
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// ---------------------------
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PF_RGB = 2, // Standard RGB: 24 bits per pixel, 8 bits are used for red, green, blue.
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PF_RGBX = 3, // 32 bits per pixel, 8 bits are used for red, green, Last 8 bits are unused.
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PF_RGBA = 4, // Standard RGBA: 32 bits per pixel, 8 bits are used for red, green, blue, alpha.
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PF_BGR = 5, // 24 bits per pixel, 8 bits are used for blue, green, red.
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PF_BGRX = 6, // 32 bits per pixel, 8 bits are used for blue, green, red. Last 8 bits are unused.
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PF_BGRA = 7, // 32 bits per pixel, 8 bits are used for blue, green, red, alpha.
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// Packed formats.
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// ---------------------------
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// 32-bit: Pixels are in ordered in 32-bit words. where the first channel is stored at the most significant byte (MSB).
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// these formats are architecture dependant (litte/big-endian).
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// (MSB) | byte 0 | byte 1 | byte 2 | byte 3 | (LSB)
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PF_RGBX32 = 8, // | rrrr rrrr | gggg gggg | bbbb bbbb | xxxx xxxx |
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PF_RGBA32 = 9, // | rrrr rrrr | gggg gggg | bbbb bbbb | aaaa aaaa |
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PF_BGRX32 = 10, // | bbbb bbbb | gggg gggg | rrrr rrrr | xxxx xxxx |
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PF_BGRA32 = 11, // | bbbb bbbb | gggg gggg | rrrr rrrr | aaaa aaaa |
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// 24-bit (unsuppored for now)
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//PF_RGB24 = 12, // | rrrr rrrr | gggg gggg | bbbb bbbb |
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//PF_BGR24 = 13, // | bbbb bbbb | gggg gggg | rrrr rrrr |
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// 16-bit (unsuppored for now)
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//PF_RGB565 = 14, // | rrrr rggg | gggb bbbb |
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//PF_RGBA5551 = 15 // | rrrr rggg | ggb bbbba |
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//PF_RGBX5551 = 16 // | rrrr rggg | ggb bbbbx |
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};
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uint8_t PF_getNumChannels(enum PixelFormat format);
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} // namespace
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#endif /* SPECTRE_GRAPHICS_PIXELFORMAT_H */
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