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Replace squish with bcdec for BC decompression
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,10 @@ | ||
| #!/usr/bin/env python | ||
| from misc.utility.scons_hints import * | ||
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| Import("env") | ||
| Import("env_modules") | ||
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| env_bcdec = env_modules.Clone() | ||
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| # Godot source files | ||
| env_bcdec.add_source_files(env.modules_sources, "*.cpp") |
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| Original file line number | Diff line number | Diff line change |
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| /**************************************************************************/ | ||
| /* image_decompress_bcdec.cpp */ | ||
| /**************************************************************************/ | ||
| /* This file is part of: */ | ||
| /* GODOT ENGINE */ | ||
| /* https://godotengine.org */ | ||
| /**************************************************************************/ | ||
| /* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */ | ||
| /* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */ | ||
| /* */ | ||
| /* Permission is hereby granted, free of charge, to any person obtaining */ | ||
| /* a copy of this software and associated documentation files (the */ | ||
| /* "Software"), to deal in the Software without restriction, including */ | ||
| /* without limitation the rights to use, copy, modify, merge, publish, */ | ||
| /* distribute, sublicense, and/or sell copies of the Software, and to */ | ||
| /* permit persons to whom the Software is furnished to do so, subject to */ | ||
| /* the following conditions: */ | ||
| /* */ | ||
| /* The above copyright notice and this permission notice shall be */ | ||
| /* included in all copies or substantial portions of the Software. */ | ||
| /* */ | ||
| /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ | ||
| /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ | ||
| /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */ | ||
| /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ | ||
| /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ | ||
| /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ | ||
| /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ | ||
| /**************************************************************************/ | ||
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| #include "image_decompress_bcdec.h" | ||
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| #include "core/os/os.h" | ||
| #include "core/string/print_string.h" | ||
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| #define BCDEC_IMPLEMENTATION | ||
| #include "thirdparty/misc/bcdec.h" | ||
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| inline void bcdec_bc6h_half_s(const void *compressedBlock, void *decompressedBlock, int destinationPitch) { | ||
| bcdec_bc6h_half(compressedBlock, decompressedBlock, destinationPitch, true); | ||
| } | ||
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| inline void bcdec_bc6h_half_u(const void *compressedBlock, void *decompressedBlock, int destinationPitch) { | ||
| bcdec_bc6h_half(compressedBlock, decompressedBlock, destinationPitch, false); | ||
| } | ||
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| static void decompress_image(BCdecFormat format, const void *src, void *dst, const uint64_t width, const uint64_t height) { | ||
| const uint8_t *src_blocks = reinterpret_cast<const uint8_t *>(src); | ||
| uint8_t *dec_blocks = reinterpret_cast<uint8_t *>(dst); | ||
| uint64_t src_pos = 0, dst_pos = 0; | ||
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| #define DECOMPRESS_LOOP(func, block_size, color_bytesize, color_components) \ | ||
| for (uint64_t y = 0; y < height; y += 4) { \ | ||
| for (uint64_t x = 0; x < width; x += 4) { \ | ||
| func(&src_blocks[src_pos], &dec_blocks[dst_pos], width *color_components); \ | ||
| src_pos += block_size; \ | ||
| dst_pos += 4 * color_bytesize; \ | ||
| } \ | ||
| dst_pos += 3 * width * color_bytesize; \ | ||
| } | ||
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| switch (format) { | ||
| case BCdec_BC1: { | ||
| DECOMPRESS_LOOP(bcdec_bc1, BCDEC_BC1_BLOCK_SIZE, 4, 4) | ||
| } break; | ||
| case BCdec_BC2: { | ||
| DECOMPRESS_LOOP(bcdec_bc2, BCDEC_BC2_BLOCK_SIZE, 4, 4) | ||
| } break; | ||
| case BCdec_BC3: { | ||
| DECOMPRESS_LOOP(bcdec_bc3, BCDEC_BC3_BLOCK_SIZE, 4, 4) | ||
| } break; | ||
| case BCdec_BC4: { | ||
| DECOMPRESS_LOOP(bcdec_bc4, BCDEC_BC4_BLOCK_SIZE, 1, 1) | ||
| } break; | ||
| case BCdec_BC5: { | ||
| DECOMPRESS_LOOP(bcdec_bc5, BCDEC_BC5_BLOCK_SIZE, 2, 2) | ||
| } break; | ||
| case BCdec_BC6U: { | ||
| DECOMPRESS_LOOP(bcdec_bc6h_half_u, BCDEC_BC6H_BLOCK_SIZE, 6, 3) | ||
| } break; | ||
| case BCdec_BC6S: { | ||
| DECOMPRESS_LOOP(bcdec_bc6h_half_s, BCDEC_BC6H_BLOCK_SIZE, 6, 3) | ||
| } break; | ||
| case BCdec_BC7: { | ||
| DECOMPRESS_LOOP(bcdec_bc7, BCDEC_BC7_BLOCK_SIZE, 4, 4) | ||
| } break; | ||
| } | ||
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| #undef DECOMPRESS_LOOP | ||
| } | ||
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| void image_decompress_bcdec(Image *p_image) { | ||
| uint64_t start_time = OS::get_singleton()->get_ticks_msec(); | ||
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| int w = p_image->get_width(); | ||
| int h = p_image->get_height(); | ||
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| Image::Format source_format = p_image->get_format(); | ||
| Image::Format target_format = Image::FORMAT_MAX; | ||
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| BCdecFormat bcdec_format = BCdec_BC1; | ||
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| switch (source_format) { | ||
| case Image::FORMAT_DXT1: | ||
| bcdec_format = BCdec_BC1; | ||
| target_format = Image::FORMAT_RGBA8; | ||
| break; | ||
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| case Image::FORMAT_DXT3: | ||
| bcdec_format = BCdec_BC2; | ||
| target_format = Image::FORMAT_RGBA8; | ||
| break; | ||
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| case Image::FORMAT_DXT5: | ||
| case Image::FORMAT_DXT5_RA_AS_RG: | ||
| bcdec_format = BCdec_BC3; | ||
| target_format = Image::FORMAT_RGBA8; | ||
| break; | ||
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| case Image::FORMAT_RGTC_R: | ||
| bcdec_format = BCdec_BC4; | ||
| target_format = Image::FORMAT_R8; | ||
| break; | ||
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| case Image::FORMAT_RGTC_RG: | ||
| bcdec_format = BCdec_BC5; | ||
| target_format = Image::FORMAT_RG8; | ||
| break; | ||
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| case Image::FORMAT_BPTC_RGBFU: | ||
| bcdec_format = BCdec_BC6U; | ||
| target_format = Image::FORMAT_RGBH; | ||
| break; | ||
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| case Image::FORMAT_BPTC_RGBF: | ||
| bcdec_format = BCdec_BC6S; | ||
| target_format = Image::FORMAT_RGBH; | ||
| break; | ||
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| case Image::FORMAT_BPTC_RGBA: | ||
| bcdec_format = BCdec_BC7; | ||
| target_format = Image::FORMAT_RGBA8; | ||
| break; | ||
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| default: | ||
| ERR_FAIL_MSG("bcdec: Can't decompress unknown format: " + Image::get_format_name(source_format) + "."); | ||
| break; | ||
| } | ||
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| int mm_count = p_image->get_mipmap_count(); | ||
| int64_t target_size = Image::get_image_data_size(w, h, target_format, p_image->has_mipmaps()); | ||
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| Vector<uint8_t> data; | ||
| data.resize(target_size); | ||
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| const uint8_t *rb = p_image->get_data().ptr(); | ||
| uint8_t *wb = data.ptrw(); | ||
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| // Decompress mipmaps. | ||
| for (int i = 0; i <= mm_count; i++) { | ||
| int64_t src_ofs = 0, mipmap_size = 0; | ||
| int mipmap_w = 0, mipmap_h = 0; | ||
| p_image->get_mipmap_offset_size_and_dimensions(i, src_ofs, mipmap_size, mipmap_w, mipmap_h); | ||
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| int64_t dst_ofs = Image::get_image_mipmap_offset(p_image->get_width(), p_image->get_height(), target_format, i); | ||
| decompress_image(bcdec_format, rb + src_ofs, wb + dst_ofs, mipmap_w, mipmap_h); | ||
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| w >>= 1; | ||
| h >>= 1; | ||
| } | ||
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| p_image->set_data(p_image->get_width(), p_image->get_height(), p_image->has_mipmaps(), target_format, data); | ||
|
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| // Swap channels if necessary. | ||
| if (source_format == Image::FORMAT_DXT5_RA_AS_RG) { | ||
| p_image->convert_ra_rgba8_to_rg(); | ||
| } | ||
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| print_verbose(vformat("bcdec: Decompression of a %dx%d %s image with %d mipmaps took %d ms.", | ||
| p_image->get_width(), p_image->get_height(), Image::get_format_name(source_format), p_image->get_mipmap_count(), OS::get_singleton()->get_ticks_msec() - start_time)); | ||
| } |
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