[nostalgia/core/opengl] Fix sprite drawing for instances of core that are not application wide

deps/ox/src/ox/mc/read.hpp

@@ -248,12 +248,17 @@ constexpr Error MetalClawReaderTemplate<Reader>::field(const char*, HashMap<Stri
 			auto reader = child("");
 			auto &handler = *reader.interface();
 			oxReturnError(handler.setTypeInfo("List", 0, {}, static_cast<std::size_t>(len)));
-			for (std::size_t i = 0; i < len; ++i) {
+			// this loop body needs to be in a lambda because of the potential alloca call
+			constexpr auto loopBody = [](auto& handler) {
 				oxRequire(keyLen, handler.stringLength(nullptr));
 				auto wkey = ox_malloca(keyLen + 1, char, 0);
 				auto wkeyPtr = wkey.get();
 				oxReturnError(handler.fieldCString("", &wkeyPtr, keyLen + 1));
 				oxReturnError(handler.field("", &val->operator[](wkey.get())));
+				return OxError(0);
+			};
+			for (std::size_t i = 0; i < len; ++i) {
+				oxReturnError(loopBody(handler));
 			}
 		}
 	}

src/nostalgia/modules/core/src/opengl/gfx.cpp

@@ -357,9 +357,9 @@ ox::Error initGfx(
 	for (auto &bg : gctx.cbbs) {
 		initBackgroundBufferset(gctx.bgShader, bg);
 	}
+	initSpritesBufferset(gctx.spriteShader, gctx.spriteBlocks);
 	if (initParams.glInstallDrawer) {
 		turbine::gl::addDrawer(gctx.turbineCtx, &gctx.drawer);
-		initSpritesBufferset(gctx.spriteShader, gctx.spriteBlocks);
 	}
 	return {};
 }