godotengine/godot
1
0
Fork 0
mirror of https://github.com/godotengine/godot.git synced 2025-11-17 14:11:06 +00:00
Code Releases Wiki Activity

DDS: Load BGRA4 textures directly as RGBA4

Browse Source
This commit is contained in:
BlueCube3310
2025-05-03 15:31:13 +02:00
parent 1cf573f44d
commit 2b8fcca343
2 changed files with 7 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
modules/dds/texture_loader_dds.cpp
View File

@@ -177,7 +177,6 @@ static Ref<Image> _dds_load_layer(Ref<FileAccess> p_file, DDSFormat p_dds_format
break;
case DDS_BGR5A1:
case DDS_BGRA4:
case DDS_B2GR3A8:
case DDS_LUMINANCE_ALPHA_4:
size = size * 2;
@@ -235,22 +234,13 @@ static Ref<Image> _dds_load_layer(Ref<FileAccess> p_file, DDSFormat p_dds_format
} break;
case DDS_BGRA4: {
// To RGBA8.
int colcount = size / 4;
// To RGBA4.
for (uint32_t i = 0; i < size; i += 2) {
uint8_t ar = wb[i + 0];
uint8_t gb = wb[i + 1];
for (int i = colcount - 1; i >= 0; i--) {
int src_ofs = i * 2;
int dst_ofs = i * 4;
uint8_t b = wb[src_ofs] & 0x0F;
uint8_t g = wb[src_ofs] & 0xF0;
uint8_t r = wb[src_ofs + 1] & 0x0F;
uint8_t a = wb[src_ofs + 1] & 0xF0;
wb[dst_ofs] = (r << 4) | r;
wb[dst_ofs + 1] = g | (g >> 4);
wb[dst_ofs + 2] = (b << 4) | b;
wb[dst_ofs + 3] = a | (a >> 4);
wb[i + 0] = ((ar & 0x0F) << 4) | ((gb & 0xF0) >> 4);
wb[i + 1] = ((ar & 0xF0) >> 4) | ((gb & 0x0F) << 4);
}
} break;