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d95794ec8a
As many open source projects have started doing it, we're removing the current year from the copyright notice, so that we don't need to bump it every year. It seems like only the first year of publication is technically relevant for copyright notices, and even that seems to be something that many companies stopped listing altogether (in a version controlled codebase, the commits are a much better source of date of publication than a hardcoded copyright statement). We also now list Godot Engine contributors first as we're collectively the current maintainers of the project, and we clarify that the "exclusive" copyright of the co-founders covers the timespan before opensourcing (their further contributions are included as part of Godot Engine contributors). Also fixed "cf." Frenchism - it's meant as "refer to / see".
435 lines
14 KiB
C++
435 lines
14 KiB
C++
/**************************************************************************/
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/* texture_loader_dds.cpp */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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#include "texture_loader_dds.h"
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#include "core/io/file_access.h"
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#define PF_FOURCC(s) ((uint32_t)(((s)[3] << 24U) | ((s)[2] << 16U) | ((s)[1] << 8U) | ((s)[0])))
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// Reference: https://docs.microsoft.com/en-us/windows/win32/direct3ddds/dds-header
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enum {
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DDS_MAGIC = 0x20534444,
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DDSD_PITCH = 0x00000008,
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DDSD_LINEARSIZE = 0x00080000,
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DDSD_MIPMAPCOUNT = 0x00020000,
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DDPF_FOURCC = 0x00000004,
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DDPF_ALPHAPIXELS = 0x00000001,
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DDPF_INDEXED = 0x00000020,
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DDPF_RGB = 0x00000040,
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};
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enum DDSFormat {
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DDS_DXT1,
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DDS_DXT3,
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DDS_DXT5,
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DDS_ATI1,
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DDS_ATI2,
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DDS_A2XY,
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DDS_BGRA8,
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DDS_BGR8,
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DDS_RGBA8, //flipped in dds
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DDS_RGB8, //flipped in dds
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DDS_BGR5A1,
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DDS_BGR565,
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DDS_BGR10A2,
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DDS_INDEXED,
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DDS_LUMINANCE,
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DDS_LUMINANCE_ALPHA,
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DDS_MAX
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};
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struct DDSFormatInfo {
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const char *name = nullptr;
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bool compressed = false;
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bool palette = false;
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uint32_t divisor = 0;
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uint32_t block_size = 0;
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Image::Format format = Image::Format::FORMAT_BPTC_RGBA;
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};
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static const DDSFormatInfo dds_format_info[DDS_MAX] = {
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{ "DXT1/BC1", true, false, 4, 8, Image::FORMAT_DXT1 },
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{ "DXT3/BC2", true, false, 4, 16, Image::FORMAT_DXT3 },
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{ "DXT5/BC3", true, false, 4, 16, Image::FORMAT_DXT5 },
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{ "ATI1/BC4", true, false, 4, 8, Image::FORMAT_RGTC_R },
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{ "ATI2/3DC/BC5", true, false, 4, 16, Image::FORMAT_RGTC_RG },
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{ "A2XY/DXN/BC5", true, false, 4, 16, Image::FORMAT_RGTC_RG },
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{ "BGRA8", false, false, 1, 4, Image::FORMAT_RGBA8 },
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{ "BGR8", false, false, 1, 3, Image::FORMAT_RGB8 },
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{ "RGBA8", false, false, 1, 4, Image::FORMAT_RGBA8 },
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{ "RGB8", false, false, 1, 3, Image::FORMAT_RGB8 },
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{ "BGR5A1", false, false, 1, 2, Image::FORMAT_RGBA8 },
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{ "BGR565", false, false, 1, 2, Image::FORMAT_RGB8 },
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{ "BGR10A2", false, false, 1, 4, Image::FORMAT_RGBA8 },
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{ "GRAYSCALE", false, false, 1, 1, Image::FORMAT_L8 },
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{ "GRAYSCALE_ALPHA", false, false, 1, 2, Image::FORMAT_LA8 }
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};
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Ref<Resource> ResourceFormatDDS::load(const String &p_path, const String &p_original_path, Error *r_error, bool p_use_sub_threads, float *r_progress, CacheMode p_cache_mode) {
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if (r_error) {
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*r_error = ERR_CANT_OPEN;
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}
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Error err;
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Ref<FileAccess> f = FileAccess::open(p_path, FileAccess::READ, &err);
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if (f.is_null()) {
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return Ref<Resource>();
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}
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Ref<FileAccess> fref(f);
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if (r_error) {
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*r_error = ERR_FILE_CORRUPT;
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}
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ERR_FAIL_COND_V_MSG(err != OK, Ref<Resource>(), "Unable to open DDS texture file '" + p_path + "'.");
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uint32_t magic = f->get_32();
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uint32_t hsize = f->get_32();
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uint32_t flags = f->get_32();
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uint32_t height = f->get_32();
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uint32_t width = f->get_32();
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uint32_t pitch = f->get_32();
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/* uint32_t depth = */ f->get_32();
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uint32_t mipmaps = f->get_32();
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//skip 11
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for (int i = 0; i < 11; i++) {
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f->get_32();
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}
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//validate
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// We don't check DDSD_CAPS or DDSD_PIXELFORMAT, as they're mandatory when writing,
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// but non-mandatory when reading (as some writers don't set them)...
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if (magic != DDS_MAGIC || hsize != 124) {
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ERR_FAIL_V_MSG(Ref<Resource>(), "Invalid or unsupported DDS texture file '" + p_path + "'.");
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}
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/* uint32_t format_size = */ f->get_32();
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uint32_t format_flags = f->get_32();
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uint32_t format_fourcc = f->get_32();
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uint32_t format_rgb_bits = f->get_32();
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uint32_t format_red_mask = f->get_32();
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uint32_t format_green_mask = f->get_32();
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uint32_t format_blue_mask = f->get_32();
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uint32_t format_alpha_mask = f->get_32();
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/* uint32_t caps_1 = */ f->get_32();
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/* uint32_t caps_2 = */ f->get_32();
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/* uint32_t caps_ddsx = */ f->get_32();
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//reserved skip
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f->get_32();
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f->get_32();
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/*
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print_line("DDS width: "+itos(width));
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print_line("DDS height: "+itos(height));
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print_line("DDS mipmaps: "+itos(mipmaps));
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printf("fourcc: %x fflags: %x, rgbbits: %x, fsize: %x\n",format_fourcc,format_flags,format_rgb_bits,format_size);
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printf("rmask: %x gmask: %x, bmask: %x, amask: %x\n",format_red_mask,format_green_mask,format_blue_mask,format_alpha_mask);
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*/
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//must avoid this later
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while (f->get_position() < 128) {
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f->get_8();
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}
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DDSFormat dds_format;
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if (format_flags & DDPF_FOURCC && format_fourcc == PF_FOURCC("DXT1")) {
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dds_format = DDS_DXT1;
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} else if (format_flags & DDPF_FOURCC && format_fourcc == PF_FOURCC("DXT3")) {
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dds_format = DDS_DXT3;
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} else if (format_flags & DDPF_FOURCC && format_fourcc == PF_FOURCC("DXT5")) {
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dds_format = DDS_DXT5;
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} else if (format_flags & DDPF_FOURCC && format_fourcc == PF_FOURCC("ATI1")) {
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dds_format = DDS_ATI1;
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} else if (format_flags & DDPF_FOURCC && format_fourcc == PF_FOURCC("ATI2")) {
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dds_format = DDS_ATI2;
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} else if (format_flags & DDPF_FOURCC && format_fourcc == PF_FOURCC("A2XY")) {
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dds_format = DDS_A2XY;
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} else if (format_flags & DDPF_RGB && format_flags & DDPF_ALPHAPIXELS && format_rgb_bits == 32 && format_red_mask == 0xff0000 && format_green_mask == 0xff00 && format_blue_mask == 0xff && format_alpha_mask == 0xff000000) {
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dds_format = DDS_BGRA8;
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} else if (format_flags & DDPF_RGB && !(format_flags & DDPF_ALPHAPIXELS) && format_rgb_bits == 24 && format_red_mask == 0xff0000 && format_green_mask == 0xff00 && format_blue_mask == 0xff) {
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dds_format = DDS_BGR8;
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} else if (format_flags & DDPF_RGB && format_flags & DDPF_ALPHAPIXELS && format_rgb_bits == 32 && format_red_mask == 0xff && format_green_mask == 0xff00 && format_blue_mask == 0xff0000 && format_alpha_mask == 0xff000000) {
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dds_format = DDS_RGBA8;
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} else if (format_flags & DDPF_RGB && !(format_flags & DDPF_ALPHAPIXELS) && format_rgb_bits == 24 && format_red_mask == 0xff && format_green_mask == 0xff00 && format_blue_mask == 0xff0000) {
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dds_format = DDS_RGB8;
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} else if (format_flags & DDPF_RGB && format_flags & DDPF_ALPHAPIXELS && format_rgb_bits == 16 && format_red_mask == 0x00007c00 && format_green_mask == 0x000003e0 && format_blue_mask == 0x0000001f && format_alpha_mask == 0x00008000) {
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dds_format = DDS_BGR5A1;
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} else if (format_flags & DDPF_RGB && format_flags & DDPF_ALPHAPIXELS && format_rgb_bits == 32 && format_red_mask == 0x3ff00000 && format_green_mask == 0xffc00 && format_blue_mask == 0x3ff && format_alpha_mask == 0xc0000000) {
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dds_format = DDS_BGR10A2;
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} else if (format_flags & DDPF_RGB && !(format_flags & DDPF_ALPHAPIXELS) && format_rgb_bits == 16 && format_red_mask == 0x0000f800 && format_green_mask == 0x000007e0 && format_blue_mask == 0x0000001f) {
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dds_format = DDS_BGR565;
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} else if (!(format_flags & DDPF_ALPHAPIXELS) && format_rgb_bits == 8 && format_red_mask == 0xff && format_green_mask == 0xff && format_blue_mask == 0xff) {
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dds_format = DDS_LUMINANCE;
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} else if ((format_flags & DDPF_ALPHAPIXELS) && format_rgb_bits == 16 && format_red_mask == 0xff && format_green_mask == 0xff && format_blue_mask == 0xff && format_alpha_mask == 0xff00) {
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dds_format = DDS_LUMINANCE_ALPHA;
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} else if (format_flags & DDPF_INDEXED && format_rgb_bits == 8) {
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dds_format = DDS_BGR565;
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} else {
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printf("unrecognized fourcc %x format_flags: %x - rgbbits %i - red_mask %x green mask %x blue mask %x alpha mask %x\n", format_fourcc, format_flags, format_rgb_bits, format_red_mask, format_green_mask, format_blue_mask, format_alpha_mask);
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ERR_FAIL_V_MSG(Ref<Resource>(), "Unrecognized or unsupported color layout in DDS '" + p_path + "'.");
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}
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if (!(flags & DDSD_MIPMAPCOUNT)) {
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mipmaps = 1;
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}
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Vector<uint8_t> src_data;
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const DDSFormatInfo &info = dds_format_info[dds_format];
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uint32_t w = width;
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uint32_t h = height;
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if (info.compressed) {
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//compressed bc
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uint32_t size = MAX(info.divisor, w) / info.divisor * MAX(info.divisor, h) / info.divisor * info.block_size;
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ERR_FAIL_COND_V(size != pitch, Ref<Resource>());
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ERR_FAIL_COND_V(!(flags & DDSD_LINEARSIZE), Ref<Resource>());
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for (uint32_t i = 1; i < mipmaps; i++) {
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w = MAX(1u, w >> 1);
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h = MAX(1u, h >> 1);
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uint32_t bsize = MAX(info.divisor, w) / info.divisor * MAX(info.divisor, h) / info.divisor * info.block_size;
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//printf("%i x %i - block: %i\n",w,h,bsize);
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size += bsize;
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}
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src_data.resize(size);
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uint8_t *wb = src_data.ptrw();
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f->get_buffer(wb, size);
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} else if (info.palette) {
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//indexed
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ERR_FAIL_COND_V(!(flags & DDSD_PITCH), Ref<Resource>());
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ERR_FAIL_COND_V(format_rgb_bits != 8, Ref<Resource>());
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uint32_t size = pitch * height;
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ERR_FAIL_COND_V(size != width * height * info.block_size, Ref<Resource>());
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uint8_t palette[256 * 4];
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f->get_buffer(palette, 256 * 4);
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int colsize = 3;
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for (int i = 0; i < 256; i++) {
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if (palette[i * 4 + 3] < 255) {
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colsize = 4;
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}
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}
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int w2 = width;
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int h2 = height;
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for (uint32_t i = 1; i < mipmaps; i++) {
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w2 = (w2 + 1) >> 1;
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h2 = (h2 + 1) >> 1;
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size += w2 * h2 * info.block_size;
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}
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src_data.resize(size + 256 * colsize);
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uint8_t *wb = src_data.ptrw();
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f->get_buffer(wb, size);
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for (int i = 0; i < 256; i++) {
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int dst_ofs = size + i * colsize;
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int src_ofs = i * 4;
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wb[dst_ofs + 0] = palette[src_ofs + 2];
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wb[dst_ofs + 1] = palette[src_ofs + 1];
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wb[dst_ofs + 2] = palette[src_ofs + 0];
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if (colsize == 4) {
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wb[dst_ofs + 3] = palette[src_ofs + 3];
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}
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}
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} else {
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//uncompressed generic...
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uint32_t size = width * height * info.block_size;
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for (uint32_t i = 1; i < mipmaps; i++) {
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w = (w + 1) >> 1;
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h = (h + 1) >> 1;
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size += w * h * info.block_size;
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}
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if (dds_format == DDS_BGR565) {
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size = size * 3 / 2;
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} else if (dds_format == DDS_BGR5A1) {
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size = size * 2;
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}
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src_data.resize(size);
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uint8_t *wb = src_data.ptrw();
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f->get_buffer(wb, size);
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switch (dds_format) {
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case DDS_BGR5A1: {
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// TO RGBA
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int colcount = size / 4;
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for (int i = colcount - 1; i >= 0; i--) {
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int src_ofs = i * 2;
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int dst_ofs = i * 4;
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uint8_t a = wb[src_ofs + 1] & 0x80;
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uint8_t b = wb[src_ofs] & 0x1F;
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uint8_t g = (wb[src_ofs] >> 5) | ((wb[src_ofs + 1] & 0x3) << 3);
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uint8_t r = (wb[src_ofs + 1] >> 2) & 0x1F;
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wb[dst_ofs + 0] = r << 3;
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wb[dst_ofs + 1] = g << 3;
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wb[dst_ofs + 2] = b << 3;
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wb[dst_ofs + 3] = a ? 255 : 0;
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}
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} break;
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case DDS_BGR565: {
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int colcount = size / 3;
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for (int i = colcount - 1; i >= 0; i--) {
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int src_ofs = i * 2;
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int dst_ofs = i * 3;
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uint8_t b = wb[src_ofs] & 0x1F;
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uint8_t g = (wb[src_ofs] >> 5) | ((wb[src_ofs + 1] & 0x7) << 3);
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uint8_t r = wb[src_ofs + 1] >> 3;
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wb[dst_ofs + 0] = r << 3;
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wb[dst_ofs + 1] = g << 2;
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wb[dst_ofs + 2] = b << 3; //b<<3;
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}
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} break;
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case DDS_BGR10A2: {
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// TO RGBA
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int colcount = size / 4;
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for (int i = colcount - 1; i >= 0; i--) {
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int ofs = i * 4;
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uint32_t w32 = uint32_t(wb[ofs + 0]) | (uint32_t(wb[ofs + 1]) << 8) | (uint32_t(wb[ofs + 2]) << 16) | (uint32_t(wb[ofs + 3]) << 24);
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uint8_t a = (w32 & 0xc0000000) >> 24;
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uint8_t r = (w32 & 0x3ff00000) >> 22;
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uint8_t g = (w32 & 0xffc00) >> 12;
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uint8_t b = (w32 & 0x3ff) >> 2;
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wb[ofs + 0] = r;
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wb[ofs + 1] = g;
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wb[ofs + 2] = b;
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wb[ofs + 3] = a == 0xc0 ? 255 : a; //0xc0 should be opaque
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}
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} break;
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case DDS_BGRA8: {
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int colcount = size / 4;
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for (int i = 0; i < colcount; i++) {
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SWAP(wb[i * 4 + 0], wb[i * 4 + 2]);
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}
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} break;
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case DDS_BGR8: {
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int colcount = size / 3;
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for (int i = 0; i < colcount; i++) {
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SWAP(wb[i * 3 + 0], wb[i * 3 + 2]);
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}
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} break;
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case DDS_RGBA8: {
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/* do nothing either
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int colcount = size/4;
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for(int i=0;i<colcount;i++) {
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uint8_t r = wb[i*4+1];
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uint8_t g = wb[i*4+2];
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uint8_t b = wb[i*4+3];
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uint8_t a = wb[i*4+0];
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wb[i*4+0]=r;
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wb[i*4+1]=g;
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wb[i*4+2]=b;
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wb[i*4+3]=a;
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}
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*/
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} break;
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case DDS_RGB8: {
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// do nothing
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/*
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int colcount = size/3;
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for(int i=0;i<colcount;i++) {
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SWAP( wb[i*3+0],wb[i*3+2] );
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}*/
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} break;
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case DDS_LUMINANCE: {
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// do nothing i guess?
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|
|
} break;
|
|
case DDS_LUMINANCE_ALPHA: {
|
|
// do nothing i guess?
|
|
|
|
} break;
|
|
|
|
default: {
|
|
}
|
|
}
|
|
}
|
|
|
|
Ref<Image> img = memnew(Image(width, height, mipmaps - 1, info.format, src_data));
|
|
Ref<ImageTexture> texture = ImageTexture::create_from_image(img);
|
|
|
|
if (r_error) {
|
|
*r_error = OK;
|
|
}
|
|
|
|
return texture;
|
|
}
|
|
|
|
void ResourceFormatDDS::get_recognized_extensions(List<String> *p_extensions) const {
|
|
p_extensions->push_back("dds");
|
|
}
|
|
|
|
bool ResourceFormatDDS::handles_type(const String &p_type) const {
|
|
return ClassDB::is_parent_class(p_type, "Texture2D");
|
|
}
|
|
|
|
String ResourceFormatDDS::get_resource_type(const String &p_path) const {
|
|
if (p_path.get_extension().to_lower() == "dds") {
|
|
return "ImageTexture";
|
|
}
|
|
return "";
|
|
}
|