diff options
| author | Ferenc Arn <tagcup@yahoo.com> | 2017-04-29 20:14:14 -0500 |
|---|---|---|
| committer | Ferenc Arn <tagcup@yahoo.com> | 2017-05-18 16:57:53 -0500 |
| commit | 3c175115ebf54bcf5f53ab7a2d4926c6773665db (patch) | |
| tree | f303e830e07a5228f4d93ff866c3c53e2a226dd8 /modules/squish | |
| parent | a75623f436c215e107ede321afa08a1897552deb (diff) | |
Use libsquish to decompress DXT textures.
Diffstat (limited to 'modules/squish')
| -rw-r--r-- | modules/squish/image_compress_squish.cpp | 42 | ||||
| -rw-r--r-- | modules/squish/image_compress_squish.h | 1 | ||||
| -rw-r--r-- | modules/squish/register_types.cpp | 1 |
3 files changed, 43 insertions, 1 deletions
diff --git a/modules/squish/image_compress_squish.cpp b/modules/squish/image_compress_squish.cpp index 3f7ad8b2c2..5c53492034 100644 --- a/modules/squish/image_compress_squish.cpp +++ b/modules/squish/image_compress_squish.cpp @@ -39,6 +39,46 @@ #include <squish.h> +void image_decompress_squish(Image *p_image) { + int w = p_image->get_width(); + int h = p_image->get_height(); + + Image::Format target_format = Image::FORMAT_RGBA8; + PoolVector<uint8_t> data; + int target_size = Image::get_image_data_size(w, h, target_format, p_image->has_mipmaps() ? -1 : 0); + int mm_count = p_image->get_mipmap_count(); + data.resize(target_size); + + PoolVector<uint8_t>::Read rb = p_image->get_data().read(); + PoolVector<uint8_t>::Write wb = data.write(); + + int squish_flags = Image::FORMAT_MAX; + if (p_image->get_format() == Image::FORMAT_DXT1) { + squish_flags = squish::kDxt1; + } else if (p_image->get_format() == Image::FORMAT_DXT3) { + squish_flags = squish::kDxt3; + } else if (p_image->get_format() == Image::FORMAT_DXT5) { + squish_flags = squish::kDxt5; + } else if (p_image->get_format() == Image::FORMAT_ATI1) { + squish_flags = squish::kBc4; + } else if (p_image->get_format() == Image::FORMAT_ATI2) { + squish_flags = squish::kBc5; + } else { + ERR_FAIL_COND(true); + return; + } + + int dst_ofs = 0; + + for (int i = 0; i <= mm_count; i++) { + int src_ofs = 0, mipmap_size = 0, mipmap_w = 0, mipmap_h = 0; + p_image->get_mipmap_offset_size_and_dimensions(i, src_ofs, mipmap_size, mipmap_w, mipmap_h); + squish::DecompressImage(&wb[dst_ofs], mipmap_w, mipmap_h, &rb[src_ofs], squish_flags); + } + + p_image->create(p_image->get_width(), p_image->get_height(), p_image->has_mipmaps(), target_format, data); +} + void image_compress_squish(Image *p_image) { int w = p_image->get_width(); @@ -56,7 +96,7 @@ void image_compress_squish(Image *p_image) { return; //do not compress, already compressed int shift = 0; - int squish_comp = squish::kColourRangeFit; + int squish_comp = squish::kColourRangeFit; // TODO: use lossy quality setting to determine the quality Image::Format target_format; if (p_image->get_format() == Image::FORMAT_LA8) { diff --git a/modules/squish/image_compress_squish.h b/modules/squish/image_compress_squish.h index 81f57c6822..519e3537ef 100644 --- a/modules/squish/image_compress_squish.h +++ b/modules/squish/image_compress_squish.h @@ -33,5 +33,6 @@ #include "image.h" void image_compress_squish(Image *p_image); +void image_decompress_squish(Image *p_image); #endif // IMAGE_COMPRESS_SQUISH_H diff --git a/modules/squish/register_types.cpp b/modules/squish/register_types.cpp index 41341db93b..2eeea59836 100644 --- a/modules/squish/register_types.cpp +++ b/modules/squish/register_types.cpp @@ -36,6 +36,7 @@ void register_squish_types() { Image::set_compress_bc_func(image_compress_squish); + Image::_image_decompress_bc = image_decompress_squish; } void unregister_squish_types() {} |