Fix[glformats]: better handling for byte-compatible GL_UNSIGNED_INT_8_8_8_8(_REV)

Author: artdeell

ltw/src/main/tinywrapper/glformats.c

@@ -398,9 +398,18 @@ CONVERT(GLubyte, GLubyte, 3, 4, {
 })
 
 INTERNAL void convert_texture2d(GLenum type, GLenum format, GLuint width, GLuint height, GLvoid const* data, GLenum outtype, GLenum outformat, GLvoid** outdata) {
-    if(type == GL_UNSIGNED_INT_8_8_8_8_REV && (format == GL_RGBA || format == GL_BGRA || format == GL_ABGR_EXT)) {
+
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+#define U32_4C_COMPATIBLE_TYPE GL_UNSIGNED_INT_8_8_8_8_REV
+#else
+#define U32_4C_COMPATIBLE_TYPE GL_UNSIGNED_INT_8_8_8_8
+#endif
+    if(type == U32_4C_COMPATIBLE_TYPE && (format == GL_RGBA || format == GL_BGRA || format == GL_ABGR_EXT)) {
         type = GL_UNSIGNED_BYTE;
     }
+    // TODO: adjust swizzle for GL_UNSIGNED_INT_8_8_8_8
+#undef U32_4C_COMPATIBLE_TYPE
+
     if(!is_type_basic(type) || !is_type_basic(outtype)) {
         LOGI("conversion between non-basic types %x and %x", type, outtype);
         return;

ltw/src/main/tinywrapper/of_buffer_copier.c

@@ -124,6 +124,7 @@ void glTexSubImage2D(GLenum target,
         return;
     }
 
+    // TODO: store this in LTW
     GLint internalformat;
     es3_functions.glGetTexLevelParameteriv(target, level, GL_TEXTURE_INTERNAL_FORMAT, &internalformat);