squish: Update to upstream version 1.15

Also fix clang-format pre-commit hook to ignore thirdparty files.
This commit is contained in:
Rémi Verschelde 2017-04-09 15:02:09 +02:00
parent 3fd10ff6f0
commit fa2d5b91dc
4 changed files with 31 additions and 9 deletions

View file

@ -82,6 +82,11 @@ $DELETE_OLD_PATCHES && rm -f /tmp/$prefix*.patch
# create one patch containing all changes to the files
git diff-index --cached --diff-filter=ACMR --name-only $against -- | while read file;
do
# ignore thirdparty files
if grep -q "thirdparty" <<< $file; then
continue;
fi
# ignore file if we do check for file extensions and the file
# does not match any of the extensions specified in $FILE_EXTS
if $PARSE_EXTS && ! matches_extension "$file"; then

View file

@ -204,7 +204,7 @@ Files extracted from upstream source:
## squish
- Upstream: https://sourceforge.net/projects/libsquish
- Version: 1.14
- Version: 1.15
- License: MIT
Files extracted from upstream source:

View file

@ -177,13 +177,17 @@ void CompressImage( u8 const* rgba, int width, int height, int pitch, void* bloc
// fix any bad flags
flags = FixFlags( flags );
// loop over blocks
#ifdef SQUISH_USE_OPENMP
# pragma omp parallel for
#endif
for( int y = 0; y < height; y += 4 )
{
// initialise the block output
u8* targetBlock = reinterpret_cast< u8* >( blocks );
int bytesPerBlock = ( ( flags & ( kDxt1 | kBc4 ) ) != 0 ) ? 8 : 16;
targetBlock += ( (y / 4) * ( (width + 3) / 4) ) * bytesPerBlock;
// loop over blocks
for( int y = 0; y < height; y += 4 )
{
for( int x = 0; x < width; x += 4 )
{
// build the 4x4 block of pixels
@ -232,13 +236,17 @@ void DecompressImage( u8* rgba, int width, int height, int pitch, void const* bl
// fix any bad flags
flags = FixFlags( flags );
// loop over blocks
#ifdef SQUISH_USE_OPENMP
# pragma omp parallel for
#endif
for( int y = 0; y < height; y += 4 )
{
// initialise the block input
u8 const* sourceBlock = reinterpret_cast< u8 const* >( blocks );
int bytesPerBlock = ( ( flags & ( kDxt1 | kBc4 ) ) != 0 ) ? 8 : 16;
sourceBlock += ( (y / 4) * ( (width + 3) / 4) ) * bytesPerBlock;
// loop over blocks
for( int y = 0; y < height; y += 4 )
{
for( int x = 0; x < width; x += 4 )
{
// decompress the block

View file

@ -239,6 +239,15 @@ int GetStorageRequirements( int width, int height, int flags );
allows for pixels outside the image to take arbitrary values. The function
squish::GetStorageRequirements can be called to compute the amount of memory
to allocate for the compressed output.
Note on compression quality: When compressing textures with
libsquish it is recommended to apply a gamma-correction
beforehand. This will reduce the blockiness in dark areas. The
level of necessary gamma-correction is platform dependent. For
example, a gamma correction with gamma = 0.5 before compression
and gamma = 2.0 after decompression yields good results on the
Windows platform but for other platforms like MacOS X a different
gamma value may be more suitable.
*/
void CompressImage( u8 const* rgba, int width, int height, int pitch, void* blocks, int flags, float* metric = 0 );
void CompressImage( u8 const* rgba, int width, int height, void* blocks, int flags, float* metric = 0 );