Merge pull request #91853 from semensanyok/fix-compatibility-gles3-lo…

…ad-compressed-layered-tex-2dArray

Fix compatibility renderer load of compressed layered `GL_TEXTURE_2D_ARRAY`

drivers/gles3/storage/texture_storage.cpp

@@ -1495,14 +1495,18 @@ void TextureStorage::_texture_set_data(RID p_texture, const Ref<Image> &p_image,
 	for (int i = 0; i < mipmaps; i++) {
 		int size, ofs;
 		img->get_mipmap_offset_and_size(i, ofs, size);
-
 		if (compressed) {
 			glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
-
-			int bw = w;
-			int bh = h;
-
-			glCompressedTexImage2D(blit_target, i, internal_format, bw, bh, 0, size, &read[ofs]);
+			if (texture->target == GL_TEXTURE_2D_ARRAY) {
+				if (p_initialize) {
+					glCompressedTexImage3D(GL_TEXTURE_2D_ARRAY, i, internal_format, w, h, texture->layers, 0,
+							size * texture->layers, &read[ofs]);
+				} else {
+					glCompressedTexSubImage3D(GL_TEXTURE_2D_ARRAY, i, 0, 0, p_layer, w, h, 1, internal_format, size, &read[ofs]);
+				}
+			} else {
+				glCompressedTexImage2D(blit_target, i, internal_format, w, h, 0, size, &read[ofs]);
+			}
 		} else {
 			glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
 			if (texture->target == GL_TEXTURE_2D_ARRAY) {