TGA: memory optimizations and native grayscale support

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- Removed temporary buffer of uncompressed image size when reading (loads images using half the memory)
- Added native support for Grayscale images (they are no longer converted to RGB(A) 32 when reading/writing)
- Fixes wrong X channel value on RGBX32 images (CCBUG: 499584)

It should also reduce loading times for corrupted images.

Closes #33

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This commit is contained in:

Mirco Miranda

2025-08-20 23:53:00 +02:00

committed by Albert Astals Cid

parent bc8b5b56b1

commit ebc366b3c5

4 changed files with 173 additions and 118 deletions

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autotests/write/format/tga/Format_Grayscale16.tga

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autotests/write/format/tga/Format_Grayscale8.tga

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