mirror of
https://github.com/diasurgical/DevilutionX.git
synced 2026-10-12 02:13:06 +00:00
Gleb Mazovetskiy
d8cd147ac7
Original Blizzard encoder is slightly less optimal than our encoder. While size in RAM in less of a concern for the non-`UNPACKED_MPQS` build, smaller files are faster to render. Savings for unpacked and minified MPQs: * diabdat.mpq: 918,311 bytes. * hellfire.mpq: 313,882 bytes. Example player graphics (note that only a few are loaded at any given time for single player): * diabdat/plrgfx/warrior/: 366,564 bytes. Example monster graphics savings: * diabdat/monsters/skelbow: 5,391 bytes. Based on the implementation from https://github.com/diasurgical/devilutionx-graphics-tools/pull/6
45 lines
1.2 KiB
C++
45 lines
1.2 KiB
C++
#pragma once
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#include "engine/render/blit_impl.hpp"
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namespace devilution {
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[[nodiscard]] constexpr bool IsClxOpaque(uint8_t control)
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{
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constexpr uint8_t ClxOpaqueMin = 0x80;
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return control >= ClxOpaqueMin;
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}
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[[nodiscard]] constexpr uint8_t GetClxOpaquePixelsWidth(uint8_t control)
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{
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return -static_cast<std::int8_t>(control);
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}
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[[nodiscard]] constexpr bool IsClxOpaqueFill(uint8_t control)
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{
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constexpr uint8_t ClxFillMax = 0xBE;
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return control <= ClxFillMax;
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}
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[[nodiscard]] constexpr uint8_t GetClxOpaqueFillWidth(uint8_t control)
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{
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constexpr uint8_t ClxFillEnd = 0xBF;
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return static_cast<int_fast16_t>(ClxFillEnd - control);
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}
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[[nodiscard]] constexpr BlitCommand ClxGetBlitCommand(const uint8_t *src)
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{
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const uint8_t control = *src++;
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if (!IsClxOpaque(control))
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return BlitCommand { BlitType::Transparent, src, control, 0 };
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if (IsClxOpaqueFill(control)) {
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const uint8_t width = GetClxOpaqueFillWidth(control);
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const uint8_t color = *src++;
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return BlitCommand { BlitType::Fill, src, width, color };
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}
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const uint8_t width = GetClxOpaquePixelsWidth(control);
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return BlitCommand { BlitType::Pixels, src + width, width, 0 };
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}
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} // namespace devilution
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