Merge pull request #80900 from BlueCube3310/dds-loading-refactor
Refactor DDS loading code
This commit is contained in:
Yuri Sizov
commit
6e8bba8569
1 changed files with 118 additions and 158 deletions
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@ -44,21 +44,32 @@ enum {
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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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DDPF_RGB = 0x00000040
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};
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enum DDSFourCC {
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DDFCC_DXT1 = PF_FOURCC("DXT1"),
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DDFCC_DXT3 = PF_FOURCC("DXT3"),
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DDFCC_DXT5 = PF_FOURCC("DXT5"),
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DDFCC_ATI1 = PF_FOURCC("ATI1"),
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DDFCC_BC4U = PF_FOURCC("BC4U"),
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DDFCC_ATI2 = PF_FOURCC("ATI2"),
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DDFCC_BC5U = PF_FOURCC("BC5U"),
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DDFCC_A2XY = PF_FOURCC("A2XY")
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};
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// The legacy bitmasked format names here represent the actual data layout in the files,
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// while their official names are flipped (e.g. RGBA8 layout is officially called ABGR8).
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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_RGBA8,
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DDS_RGB8,
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DDS_BGR5A1,
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DDS_BGR565,
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DDS_BGR10A2,
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@ -70,28 +81,26 @@ enum DDSFormat {
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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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{ "DXT1/BC1", true, 4, 8, Image::FORMAT_DXT1 },
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{ "DXT3/BC2", true, 4, 16, Image::FORMAT_DXT3 },
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{ "DXT5/BC3", true, 4, 16, Image::FORMAT_DXT5 },
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{ "ATI1/BC4", true, 4, 8, Image::FORMAT_RGTC_R },
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{ "ATI2/A2XY/BC5", true, 4, 16, Image::FORMAT_RGTC_RG },
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{ "BGRA8", false, 1, 4, Image::FORMAT_RGBA8 },
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{ "BGR8", false, 1, 3, Image::FORMAT_RGB8 },
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{ "RGBA8", false, 1, 4, Image::FORMAT_RGBA8 },
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{ "RGB8", false, 1, 3, Image::FORMAT_RGB8 },
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{ "BGR5A1", false, 1, 2, Image::FORMAT_RGBA8 },
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{ "BGR565", false, 1, 2, Image::FORMAT_RGB8 },
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{ "BGR10A2", false, 1, 4, Image::FORMAT_RGBA8 },
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{ "GRAYSCALE", false, 1, 1, Image::FORMAT_L8 },
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{ "GRAYSCALE_ALPHA", 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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@ -121,15 +130,14 @@ Ref<Resource> ResourceFormatDDS::load(const String &p_path, const String &p_orig
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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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// Skip reserved.
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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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// 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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// 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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@ -145,65 +153,81 @@ Ref<Resource> ResourceFormatDDS::load(const String &p_path, const String &p_orig
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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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/* uint32_t caps_3 = */ f->get_32();
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/* uint32_t caps_4 = */ f->get_32();
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//reserved skip
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f->get_32();
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// Skip reserved.
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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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if (f->get_position() < 128) {
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f->seek(128);
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}
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DDSFormat dds_format;
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DDSFormat dds_format = DDS_MAX;
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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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if (format_flags & DDPF_FOURCC) {
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// FourCC formats.
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switch (format_fourcc) {
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case DDFCC_DXT1: {
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dds_format = DDS_DXT1;
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} break;
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case DDFCC_DXT3: {
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dds_format = DDS_DXT3;
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} break;
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case DDFCC_DXT5: {
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dds_format = DDS_DXT5;
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} break;
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case DDFCC_ATI1:
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case DDFCC_BC4U: {
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dds_format = DDS_ATI1;
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} break;
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case DDFCC_ATI2:
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case DDFCC_BC5U:
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case DDFCC_A2XY: {
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dds_format = DDS_ATI2;
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} break;
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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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default: {
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ERR_FAIL_V_MSG(Ref<Resource>(), "Unrecognized or unsupported FourCC in DDS '" + p_path + "'.");
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}
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}
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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) {
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// Channel-bitmasked formats.
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if (format_flags & DDPF_ALPHAPIXELS) {
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// With alpha.
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if (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_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_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_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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}
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} else {
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// Without alpha.
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if (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_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_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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}
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}
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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) {
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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_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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// Other formats.
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if (format_flags & DDPF_ALPHAPIXELS && format_rgb_bits == 16 && format_red_mask == 0xff && format_alpha_mask == 0xff00) {
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dds_format = DDS_LUMINANCE_ALPHA;
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} else if (!(format_flags & DDPF_ALPHAPIXELS) && format_rgb_bits == 8 && format_red_mask == 0xff) {
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dds_format = DDS_LUMINANCE;
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}
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}
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// No format detected, error.
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if (dds_format == DDS_MAX) {
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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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@ -218,17 +242,17 @@ Ref<Resource> ResourceFormatDDS::load(const String &p_path, const String &p_orig
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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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// BC compressed.
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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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@ -236,50 +260,8 @@ Ref<Resource> ResourceFormatDDS::load(const String &p_path, const String &p_orig
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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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// Generic uncompressed.
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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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@ -288,6 +270,7 @@ Ref<Resource> ResourceFormatDDS::load(const String &p_path, const String &p_orig
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size += w * h * info.block_size;
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}
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// Calculate the space these formats will take up after decoding.
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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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@ -298,9 +281,10 @@ Ref<Resource> ResourceFormatDDS::load(const String &p_path, const String &p_orig
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uint8_t *wb = src_data.ptrw();
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f->get_buffer(wb, size);
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// Decode nonstandard formats.
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switch (dds_format) {
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case DDS_BGR5A1: {
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// TO RGBA
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// To RGBA8.
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int colcount = size / 4;
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for (int i = colcount - 1; i >= 0; i--) {
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@ -311,13 +295,16 @@ Ref<Resource> ResourceFormatDDS::load(const String &p_path, const String &p_orig
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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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// To RGB8.
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int colcount = size / 3;
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for (int i = colcount - 1; i >= 0; i--) {
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@ -327,21 +314,24 @@ Ref<Resource> ResourceFormatDDS::load(const String &p_path, const String &p_orig
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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;
|
||||
|
||||
wb[dst_ofs + 0] = r << 3;
|
||||
wb[dst_ofs + 1] = g << 2;
|
||||
wb[dst_ofs + 2] = b << 3; //b<<3;
|
||||
wb[dst_ofs + 2] = b << 3;
|
||||
}
|
||||
|
||||
} break;
|
||||
case DDS_BGR10A2: {
|
||||
// TO RGBA
|
||||
// To RGBA8.
|
||||
int colcount = size / 4;
|
||||
|
||||
for (int i = colcount - 1; i >= 0; i--) {
|
||||
for (int i = 0; i < colcount; i++) {
|
||||
int ofs = i * 4;
|
||||
|
||||
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);
|
||||
|
||||
// This method follows the 'standard' way of decoding 10-bit dds files,
|
||||
// which means the ones created with DirectXTex will be loaded incorrectly.
|
||||
uint8_t a = (w32 & 0xc0000000) >> 24;
|
||||
uint8_t r = (w32 & 0x3ff00000) >> 22;
|
||||
uint8_t g = (w32 & 0xffc00) >> 12;
|
||||
|
|
@ -350,10 +340,12 @@ Ref<Resource> ResourceFormatDDS::load(const String &p_path, const String &p_orig
|
|||
wb[ofs + 0] = r;
|
||||
wb[ofs + 1] = g;
|
||||
wb[ofs + 2] = b;
|
||||
wb[ofs + 3] = a == 0xc0 ? 255 : a; //0xc0 should be opaque
|
||||
wb[ofs + 3] = a == 0xc0 ? 255 : a; // 0xc0 should be opaque.
|
||||
}
|
||||
|
||||
} break;
|
||||
case DDS_BGRA8: {
|
||||
// To RGBA8.
|
||||
int colcount = size / 4;
|
||||
|
||||
for (int i = 0; i < colcount; i++) {
|
||||
|
|
@ -362,44 +354,12 @@ Ref<Resource> ResourceFormatDDS::load(const String &p_path, const String &p_orig
|
|||
|
||||
} break;
|
||||
case DDS_BGR8: {
|
||||
// To RGB8.
|
||||
int colcount = size / 3;
|
||||
|
||||
for (int i = 0; i < colcount; i++) {
|
||||
SWAP(wb[i * 3 + 0], wb[i * 3 + 2]);
|
||||
}
|
||||
} break;
|
||||
case DDS_RGBA8: {
|
||||
/* do nothing either
|
||||
int colcount = size/4;
|
||||
|
||||
for(int i=0;i<colcount;i++) {
|
||||
uint8_t r = wb[i*4+1];
|
||||
uint8_t g = wb[i*4+2];
|
||||
uint8_t b = wb[i*4+3];
|
||||
uint8_t a = wb[i*4+0];
|
||||
|
||||
wb[i*4+0]=r;
|
||||
wb[i*4+1]=g;
|
||||
wb[i*4+2]=b;
|
||||
wb[i*4+3]=a;
|
||||
}
|
||||
*/
|
||||
} break;
|
||||
case DDS_RGB8: {
|
||||
// do nothing
|
||||
/*
|
||||
int colcount = size/3;
|
||||
|
||||
for(int i=0;i<colcount;i++) {
|
||||
SWAP( wb[i*3+0],wb[i*3+2] );
|
||||
}*/
|
||||
} break;
|
||||
case DDS_LUMINANCE: {
|
||||
// do nothing i guess?
|
||||
|
||||
} break;
|
||||
case DDS_LUMINANCE_ALPHA: {
|
||||
// do nothing i guess?
|
||||
|
||||
} break;
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue