fix [2151588] glTexSubImage2D() allows pixel format conversion
diff --git a/opengl/libagl/texture.cpp b/opengl/libagl/texture.cpp
index 90e6d29..13d078e 100644
--- a/opengl/libagl/texture.cpp
+++ b/opengl/libagl/texture.cpp
@@ -1252,6 +1252,11 @@
ogles_error(c, GL_INVALID_OPERATION);
return;
}
+
+ if (format != tex->internalformat) {
+ ogles_error(c, GL_INVALID_OPERATION);
+ return;
+ }
if ((xoffset + width > GLsizei(surface.width)) ||
(yoffset + height > GLsizei(surface.height))) {
ogles_error(c, GL_INVALID_VALUE);