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ETCPAK expects BGRA data for ETC

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This commit is contained in:
Bastiaan Olij 2022-12-02 01:34:05 +11:00
parent eb555d7559
commit ebec23d8d8
3 changed files with 17 additions and 0 deletions
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13
core/io/image.cpp
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@ -3798,6 +3798,19 @@ void Image::convert_ra_rgba8_to_rg() {
}
}
void Image::convert_rgba8_to_bgra8() {
ERR_FAIL_COND(format != FORMAT_RGBA8);
ERR_FAIL_COND(!data.size());
int s = data.size();
uint8_t *w = data.ptrw();
for (int i = 0; i < s; i += 4) {
uint8_t r = w[i];
w[i] = w[i + 2]; // Swap R to B
w[i + 2] = r; // Swap B to R
}
}
Error Image::_load_from_buffer(const Vector<uint8_t> &p_array, ImageMemLoadFunc p_loader) {
int buffer_size = p_array.size();

1
core/io/image.h
View file

@ -391,6 +391,7 @@ public:
void convert_rg_to_ra_rgba8();
void convert_ra_rgba8_to_rg();
void convert_rgba8_to_bgra8();
Image(const uint8_t *p_mem_png_jpg, int p_len = -1);
Image(const char **p_xpm);

3
modules/etcpak/image_compress_etcpak.cpp
View file

@ -111,13 +111,16 @@ void _compress_etcpak(EtcpakType p_compresstype, Image *r_img, float p_lossy_qua
Image::Format target_format = Image::FORMAT_RGBA8;
if (p_compresstype == EtcpakType::ETCPAK_TYPE_ETC1) {
target_format = Image::FORMAT_ETC;
r_img->convert_rgba8_to_bgra8(); // It's badly documented but ETCPAK seems to be expected BGRA8 for ETC.
} else if (p_compresstype == EtcpakType::ETCPAK_TYPE_ETC2) {
target_format = Image::FORMAT_ETC2_RGB8;
r_img->convert_rgba8_to_bgra8(); // It's badly documented but ETCPAK seems to be expected BGRA8 for ETC.
} else if (p_compresstype == EtcpakType::ETCPAK_TYPE_ETC2_RA_AS_RG) {
target_format = Image::FORMAT_ETC2_RA_AS_RG;
r_img->convert_rg_to_ra_rgba8();
} else if (p_compresstype == EtcpakType::ETCPAK_TYPE_ETC2_ALPHA) {
target_format = Image::FORMAT_ETC2_RGBA8;
r_img->convert_rgba8_to_bgra8(); // It's badly documented but ETCPAK seems to be expected BGRA8 for ETC.
} else if (p_compresstype == EtcpakType::ETCPAK_TYPE_DXT1) {
target_format = Image::FORMAT_DXT1;
} else if (p_compresstype == EtcpakType::ETCPAK_TYPE_DXT5_RA_AS_RG) {